{"version":3,"file":"index.cjs","sources":["../src/telemetry.ts","../src/client.ts","../src/tauri-service.ts","../src/electron-service.ts","../src/debugger.ts","../node_modules/depd/lib/browser/index.js","../node_modules/bytes/index.js","../node_modules/content-type/index.js","../node_modules/setprototypeof/index.js","../node_modules/statuses/index.js","../node_modules/inherits/inherits_browser.js","../node_modules/toidentifier/index.js","../node_modules/http-errors/index.js","../node_modules/body-parser/node_modules/ms/index.js","../node_modules/body-parser/node_modules/debug/src/debug.js","../node_modules/body-parser/node_modules/debug/src/browser.js","../node_modules/destroy/index.js","../node_modules/safer-buffer/safer.js","../node_modules/iconv-lite/lib/bom-handling.js","../node_modules/iconv-lite/encodings/internal.js","../node_modules/iconv-lite/encodings/utf16.js","../node_modules/iconv-lite/encodings/utf7.js","../node_modules/iconv-lite/encodings/sbcs-codec.js","../node_modules/iconv-lite/encodings/sbcs-data.js","../node_modules/iconv-lite/encodings/sbcs-data-generated.js","../node_modules/iconv-lite/encodings/dbcs-codec.js","../node_modules/iconv-lite/encodings/dbcs-data.js","../node_modules/iconv-lite/encodings/index.js","../node_modules/iconv-lite/lib/index.js","../node_modules/unpipe/index.js","../node_modules/raw-body/index.js","../node_modules/ee-first/index.js","../node_modules/on-finished/index.js","../node_modules/body-parser/lib/read.js","../node_modules/media-typer/index.js","../node_modules/mime-db/index.js","../node_modules/mime-types/index.js","../node_modules/type-is/index.js","../node_modules/body-parser/lib/types/json.js","../node_modules/body-parser/lib/types/raw.js","../node_modules/body-parser/lib/types/text.js","../node_modules/es-errors/type.js","../node_modules/object-inspect/index.js","../node_modules/side-channel-list/index.js","../node_modules/es-object-atoms/index.js","../node_modules/es-errors/index.js","../node_modules/es-errors/eval.js","../node_modules/es-errors/range.js","../node_modules/es-errors/ref.js","../node_modules/es-errors/syntax.js","../node_modules/es-errors/uri.js","../node_modules/math-intrinsics/abs.js","../node_modules/math-intrinsics/floor.js","../node_modules/math-intrinsics/max.js","../node_modules/math-intrinsics/min.js","../node_modules/math-intrinsics/pow.js","../node_modules/math-intrinsics/round.js","../node_modules/math-intrinsics/isNaN.js","../node_modules/math-intrinsics/sign.js","../node_modules/gopd/gOPD.js","../node_modules/gopd/index.js","../node_modules/es-define-property/index.js","../node_modules/has-symbols/shams.js","../node_modules/has-symbols/index.js","../node_modules/get-proto/Reflect.getPrototypeOf.js","../node_modules/get-proto/Object.getPrototypeOf.js","../node_modules/function-bind/implementation.js","../node_modules/function-bind/index.js","../node_modules/call-bind-apply-helpers/functionCall.js","../node_modules/call-bind-apply-helpers/functionApply.js","../node_modules/call-bind-apply-helpers/reflectApply.js","../node_modules/call-bind-apply-helpers/actualApply.js","../node_modules/call-bind-apply-helpers/index.js","../node_modules/dunder-proto/get.js","../node_modules/get-proto/index.js","../node_modules/hasown/index.js","../node_modules/get-intrinsic/index.js","../node_modules/call-bound/index.js","../node_modules/side-channel-map/index.js","../node_modules/side-channel-weakmap/index.js","../node_modules/side-channel/index.js","../node_modules/qs/lib/formats.js","../node_modules/qs/lib/utils.js","../node_modules/qs/lib/stringify.js","../node_modules/qs/lib/parse.js","../node_modules/qs/lib/index.js","../node_modules/body-parser/lib/types/urlencoded.js","../node_modules/body-parser/index.js","../node_modules/merge-descriptors/index.js","../node_modules/finalhandler/node_modules/ms/index.js","../node_modules/finalhandler/node_modules/debug/src/debug.js","../node_modules/finalhandler/node_modules/debug/src/browser.js","../node_modules/encodeurl/index.js","../node_modules/escape-html/index.js","../node_modules/parseurl/index.js","../node_modules/finalhandler/index.js","../node_modules/express/node_modules/ms/index.js","../node_modules/express/node_modules/debug/src/debug.js","../node_modules/express/node_modules/debug/src/browser.js","../node_modules/array-flatten/array-flatten.js","../node_modules/path-to-regexp/index.js","../node_modules/express/lib/router/layer.js","../node_modules/methods/index.js","../node_modules/express/lib/router/route.js","../node_modules/utils-merge/index.js","../node_modules/express/lib/router/index.js","../node_modules/express/lib/middleware/init.js","../node_modules/express/lib/middleware/query.js","../node_modules/express/lib/view.js","../node_modules/safe-buffer/index.js","../node_modules/content-disposition/index.js","../node_modules/send/node_modules/debug/node_modules/ms/index.js","../node_modules/send/node_modules/debug/src/debug.js","../node_modules/send/node_modules/debug/src/browser.js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{ TelemetryOptions, TelemetryEvent } from './types';\n\nexport class TelemetryManager {\n private options: Required;\n private performanceMarks: Map = new Map();\n\n constructor(options: TelemetryOptions = {}) {\n this.options = {\n enabled: options.enabled ?? false,\n onEvent: options.onEvent ?? (() => {}),\n trackPerformance: options.trackPerformance ?? true,\n trackErrors: options.trackErrors ?? true,\n };\n }\n\n public trackEvent(\n type: TelemetryEvent['type'],\n data?: Record\n ): void {\n if (!this.options.enabled) return;\n\n const event: TelemetryEvent = {\n type,\n timestamp: Date.now(),\n data,\n };\n\n this.options.onEvent(event);\n }\n\n public startPerformanceTracking(label: string): void {\n if (!this.options.enabled || !this.options.trackPerformance) return;\n this.performanceMarks.set(label, Date.now());\n }\n\n public endPerformanceTracking(\n label: string,\n additionalData?: Record\n ): number | null {\n if (!this.options.enabled || !this.options.trackPerformance) return null;\n\n const startTime = this.performanceMarks.get(label);\n if (!startTime) return null;\n\n const duration = Date.now() - startTime;\n this.performanceMarks.delete(label);\n\n this.trackEvent('performance', {\n label,\n duration,\n ...additionalData,\n });\n\n return duration;\n }\n\n public trackError(error: Error | string, context?: string): void {\n if (!this.options.enabled || !this.options.trackErrors) return;\n\n this.trackEvent('error', {\n error: error instanceof Error ? error.message : error,\n stack: error instanceof Error ? error.stack : undefined,\n context,\n });\n }\n}\n","import { AudioProxyOptions, StreamInfo, Environment } from './types';\nimport { TelemetryManager } from './telemetry';\n\n// Type declarations for window objects\n/* eslint-disable no-unused-vars */\ndeclare global {\n interface Window {\n __TAURI__?: {\n // Tauri v1 API\n tauri?: {\n convertFileSrc: (filePath: string) => string;\n invoke?: (\n command: string,\n args?: Record\n ) => Promise;\n };\n // Tauri v2 API\n core?: {\n convertFileSrc: (filePath: string) => string;\n invoke?: (\n command: string,\n args?: Record\n ) => Promise;\n };\n };\n electronAPI?: unknown;\n }\n}\n/* eslint-enable no-unused-vars */\n\ninterface ProcessVersions {\n electron?: string;\n [key: string]: string | undefined;\n}\n\ndeclare const process:\n | {\n versions?: ProcessVersions;\n }\n | undefined;\n\n/**\n * Main client for processing audio URLs and managing proxy connections.\n * Automatically detects environment (Tauri/Electron/Web) and handles URL conversion.\n *\n * @example\n * ```typescript\n * const client = new AudioProxyClient({\n * autoStartProxy: true,\n * fallbackToOriginal: true\n * });\n * const playableUrl = await client.getPlayableUrl('https://example.com/audio.mp3');\n * ```\n */\nexport class AudioProxyClient {\n private options: Required;\n private environment: Environment;\n private autoStartedServer: unknown = null; // Server instance if auto-started\n private telemetry: TelemetryManager;\n\n /**\n * Creates a new AudioProxyClient instance.\n * @param options - Configuration options for the client\n */\n constructor(options: AudioProxyOptions = {}) {\n this.options = {\n proxyUrl: options.proxyUrl || 'http://localhost:3002',\n autoDetect: options.autoDetect ?? true,\n fallbackToOriginal: options.fallbackToOriginal ?? true,\n retryAttempts: options.retryAttempts || 3,\n retryDelay: options.retryDelay || 1000,\n autoStartProxy: options.autoStartProxy ?? false,\n proxyServerConfig: options.proxyServerConfig || {},\n telemetry: options.telemetry || { enabled: false },\n };\n\n this.environment = this.detectEnvironment();\n this.telemetry = new TelemetryManager(this.options.telemetry);\n }\n\n private detectEnvironment(): Environment {\n if (typeof window === 'undefined') {\n return 'unknown';\n }\n\n // Check for Tauri v2 (window.__TAURI__.core) or Tauri v1 (window.__TAURI__.tauri)\n if (window.__TAURI__ && (window.__TAURI__.core || window.__TAURI__.tauri)) {\n return 'tauri';\n }\n\n if (\n window.electronAPI ||\n (typeof process !== 'undefined' &&\n process?.versions &&\n process.versions.electron)\n ) {\n return 'electron';\n }\n\n return 'web';\n }\n\n public getEnvironment(): Environment {\n return this.environment;\n }\n\n public getProxyUrl(): string {\n return this.options.proxyUrl;\n }\n\n private async startProxyServer(): Promise {\n // Only works in Node.js environment\n if (typeof window !== 'undefined') {\n console.warn(\n '[AudioProxyClient] Cannot auto-start proxy server in browser environment'\n );\n return false;\n }\n\n try {\n // Dynamically import server-impl (only available in Node.js)\n const { startProxyServer } = await import('./server-impl');\n\n const url = new URL(this.options.proxyUrl);\n const port = parseInt(url.port) || 3002;\n\n console.log(\n `[AudioProxyClient] Auto-starting proxy server on port ${port}...`\n );\n\n this.autoStartedServer = await startProxyServer({\n port,\n ...this.options.proxyServerConfig,\n });\n\n // Wait a bit for server to fully start\n await this.delay(500);\n\n const available = await this.isProxyAvailable();\n if (available) {\n console.log(\n '[AudioProxyClient] Proxy server auto-started successfully'\n );\n return true;\n }\n\n return false;\n } catch (error) {\n console.error(\n '[AudioProxyClient] Failed to auto-start proxy server:',\n error,\n '\\nCommon causes: 1) Port already in use 2) Insufficient permissions 3) Not running in Node.js'\n );\n return false;\n }\n }\n\n public async isProxyAvailable(): Promise {\n this.telemetry.startPerformanceTracking('proxy_check');\n try {\n const controller = new AbortController();\n const timeoutId = setTimeout(() => controller.abort(), 5000);\n\n const response = await fetch(`${this.options.proxyUrl}/health`, {\n signal: controller.signal,\n method: 'GET',\n cache: 'no-cache',\n });\n\n clearTimeout(timeoutId);\n\n if (response.ok) {\n const data = await response.json();\n console.log('[AudioProxyClient] Proxy server available:', data);\n this.telemetry.endPerformanceTracking('proxy_check', { available: true });\n this.telemetry.trackEvent('proxy_check', { available: true, proxyUrl: this.options.proxyUrl });\n return true;\n }\n this.telemetry.endPerformanceTracking('proxy_check', { available: false });\n this.telemetry.trackEvent('proxy_check', { available: false, proxyUrl: this.options.proxyUrl });\n return false;\n } catch (error: unknown) {\n const errorMessage =\n error instanceof Error ? error.message : 'Unknown error';\n console.warn(\n '[AudioProxyClient] Proxy server unavailable:',\n errorMessage\n );\n this.telemetry.endPerformanceTracking('proxy_check', { available: false, error: errorMessage });\n this.telemetry.trackEvent('proxy_check', { available: false, proxyUrl: this.options.proxyUrl, error: errorMessage });\n return false;\n }\n }\n\n /**\n * Checks if a URL can be played and gets stream information.\n * @param url - The audio URL to check\n * @returns Promise resolving to stream information including playability\n */\n public async canPlayUrl(url: string): Promise {\n console.log('[AudioProxyClient] Processing URL:', url);\n\n // Check if it's a local file\n if (this.isLocalFile(url)) {\n console.log('[AudioProxyClient] Using local file handler');\n return {\n url,\n status: 200,\n headers: {},\n canPlay: true,\n requiresProxy: false,\n };\n }\n\n // Check if proxy is available\n const proxyAvailable = await this.isProxyAvailable();\n\n if (proxyAvailable) {\n try {\n const infoUrl = `${this.options.proxyUrl}/info?url=${encodeURIComponent(url)}`;\n const response = await fetch(infoUrl);\n\n if (response.ok) {\n const data = await response.json();\n const streamInfo: StreamInfo = {\n url: data.url,\n status: data.status,\n headers: data.headers || {},\n canPlay: true,\n requiresProxy: true,\n contentType: data.contentType,\n contentLength: data.contentLength,\n acceptRanges: data.acceptRanges,\n lastModified: data.lastModified,\n };\n console.log('[AudioProxyClient] Stream info:', streamInfo);\n return streamInfo;\n }\n } catch (error) {\n console.warn(\n '[AudioProxyClient] Failed to get stream info via proxy:',\n error\n );\n }\n }\n\n // Fallback: assume it needs proxy\n const streamInfo: StreamInfo = {\n url,\n status: 0,\n headers: {},\n canPlay: false,\n requiresProxy: true,\n };\n console.log('[AudioProxyClient] Stream info:', streamInfo);\n return streamInfo;\n }\n\n /**\n * Converts any audio URL to a playable URL, using proxy if needed.\n * This is the main method you'll use to process audio URLs.\n *\n * @param url - The original audio URL\n * @returns Promise resolving to a playable URL (may be proxied or converted)\n * @throws Error if proxy is unavailable and fallback is disabled\n *\n * @example\n * ```typescript\n * const playableUrl = await client.getPlayableUrl('https://example.com/audio.mp3');\n * audioElement.src = playableUrl;\n * ```\n */\n public async getPlayableUrl(url: string): Promise {\n console.log('[AudioProxyClient] Processing URL:', url);\n this.telemetry.startPerformanceTracking('url_conversion');\n\n // Handle local files\n if (this.isLocalFile(url)) {\n console.log('[AudioProxyClient] Using local file handler');\n const result = this.handleLocalFile(url);\n this.telemetry.endPerformanceTracking('url_conversion', { url, type: 'local_file' });\n this.telemetry.trackEvent('url_conversion', { url, result, type: 'local_file', success: true });\n return result;\n }\n\n // Check stream info\n const streamInfo = await this.canPlayUrl(url);\n\n if (streamInfo.requiresProxy) {\n console.log(\n '[AudioProxyClient] Proxy required, checking availability...'\n );\n\n // Try proxy with retries\n for (let attempt = 1; attempt <= this.options.retryAttempts; attempt++) {\n let proxyAvailable = await this.isProxyAvailable();\n\n // If proxy not available and auto-start is enabled, try to start it\n if (\n !proxyAvailable &&\n this.options.autoStartProxy &&\n !this.autoStartedServer\n ) {\n console.log(\n '[AudioProxyClient] Attempting to auto-start proxy server...'\n );\n proxyAvailable = await this.startProxyServer();\n }\n\n if (proxyAvailable) {\n const result = `${this.options.proxyUrl}/proxy?url=${encodeURIComponent(url)}`;\n console.log('[AudioProxyClient] Generated proxy URL:', result);\n this.telemetry.endPerformanceTracking('url_conversion', { url, type: 'proxy', attempt });\n this.telemetry.trackEvent('url_conversion', { url, result, type: 'proxy', success: true, attempt });\n return result;\n }\n\n if (attempt < this.options.retryAttempts) {\n console.log(\n `[AudioProxyClient] Proxy not available on attempt ${attempt}`\n );\n await this.delay(this.options.retryDelay);\n }\n }\n\n // Proxy failed, fallback if enabled\n if (this.options.fallbackToOriginal) {\n console.log(\n '[AudioProxyClient] Falling back to original URL (may have CORS issues)'\n );\n this.telemetry.endPerformanceTracking('url_conversion', { url, type: 'fallback' });\n this.telemetry.trackEvent('url_conversion', { url, result: url, type: 'fallback', success: true });\n return url;\n } else {\n const error = new Error(\n `Proxy server unavailable at ${this.options.proxyUrl}. ` +\n `Tried ${this.options.retryAttempts} times. ` +\n `Solutions: 1) Start proxy server manually with 'startProxyServer()'. ` +\n `2) Enable 'autoStartProxy: true' option. ` +\n `3) Set 'fallbackToOriginal: true' to use direct URLs (may have CORS issues). ` +\n `4) Check if port ${new URL(this.options.proxyUrl).port} is blocked by firewall.`\n );\n this.telemetry.trackError(error, 'url_conversion');\n throw error;\n }\n }\n\n this.telemetry.endPerformanceTracking('url_conversion', { url, type: 'direct' });\n this.telemetry.trackEvent('url_conversion', { url, result: url, type: 'direct', success: true });\n return url;\n }\n\n private isLocalFile(url: string): boolean {\n return (\n url.startsWith('/') ||\n url.startsWith('./') ||\n url.startsWith('../') ||\n url.startsWith('file://') ||\n url.startsWith('blob:') ||\n url.startsWith('data:') ||\n !!url.match(/^[a-zA-Z]:\\\\/)\n ); // Windows path\n }\n\n private handleLocalFile(url: string): string {\n // Handle data: and blob: URLs directly - no conversion needed\n if (url.startsWith('data:') || url.startsWith('blob:')) {\n return url;\n }\n\n // In Tauri, use convertFileSrc for file:// URLs\n if (this.environment === 'tauri' && window.__TAURI__) {\n try {\n // Try Tauri v2 API first (window.__TAURI__.core)\n let convertFileSrc = window.__TAURI__.core?.convertFileSrc;\n\n // Fallback to Tauri v1 API (window.__TAURI__.tauri)\n if (!convertFileSrc && window.__TAURI__.tauri) {\n convertFileSrc = window.__TAURI__.tauri.convertFileSrc;\n }\n\n if (\n convertFileSrc &&\n (url.startsWith('file://') ||\n url.startsWith('/') ||\n url.match(/^[a-zA-Z]:\\\\/))\n ) {\n return convertFileSrc(url);\n }\n } catch (error) {\n console.warn(\n '[AudioProxyClient] Failed to convert file source with Tauri:',\n error\n );\n // Fallback to original URL if conversion fails\n }\n }\n\n // For other environments or fallback, return as-is\n return url;\n }\n\n private delay(ms: number): Promise {\n return new Promise(resolve => setTimeout(resolve, ms));\n }\n\n /**\n * Stops the auto-started proxy server if it was started by this client.\n * Automatically called on process exit, but can be called manually for cleanup.\n *\n * @example\n * ```typescript\n * await client.stopProxyServer();\n * ```\n */\n public async stopProxyServer(): Promise {\n if (this.autoStartedServer) {\n try {\n console.log('[AudioProxyClient] Stopping auto-started proxy server...');\n const server = this.autoStartedServer as { stop: () => Promise };\n await server.stop();\n this.autoStartedServer = null;\n console.log('[AudioProxyClient] Proxy server stopped successfully');\n } catch (error) {\n console.error('[AudioProxyClient] Failed to stop proxy server:', error);\n }\n }\n }\n}\n\n/**\n * Factory function to create an AudioProxyClient instance.\n * Convenient alternative to using `new AudioProxyClient()`.\n *\n * @param options - Configuration options for the client\n * @returns A new AudioProxyClient instance\n *\n * @example\n * ```typescript\n * const client = createAudioClient({\n * autoStartProxy: true,\n * proxyUrl: 'http://localhost:3002'\n * });\n * ```\n */\nexport function createAudioClient(\n options?: AudioProxyOptions\n): AudioProxyClient {\n return new AudioProxyClient(options);\n}\n","import { AudioProxyClient } from './client';\nimport { AudioServiceOptions } from './types';\n\n// Type declarations for Tauri API that extends client.ts declarations\n\nexport class TauriAudioService {\n private audioClient: AudioProxyClient;\n\n constructor(options: AudioServiceOptions = {}) {\n // Use audioOptions if provided, otherwise use the options directly\n const clientOptions = options.audioOptions || options;\n this.audioClient = new AudioProxyClient(clientOptions);\n }\n\n public async getStreamableUrl(url: string): Promise {\n return await this.audioClient.getPlayableUrl(url);\n }\n\n public async canPlayStream(url: string) {\n return await this.audioClient.canPlayUrl(url);\n }\n\n public getEnvironment() {\n return this.audioClient.getEnvironment();\n }\n\n public async isProxyAvailable(): Promise {\n return await this.audioClient.isProxyAvailable();\n }\n\n public async checkSystemCodecs(): Promise<{\n supportedFormats: string[];\n missingCodecs: string[];\n capabilities: Record;\n }> {\n const audio = new Audio();\n const formats = [\n { name: 'MP3', mime: 'audio/mpeg', codecs: ['mp3'] },\n { name: 'OGG', mime: 'audio/ogg', codecs: ['vorbis', 'opus'] },\n { name: 'WAV', mime: 'audio/wav', codecs: ['pcm'] },\n { name: 'AAC', mime: 'audio/aac', codecs: ['mp4a.40.2'] },\n { name: 'FLAC', mime: 'audio/flac', codecs: ['flac'] },\n { name: 'WEBM', mime: 'audio/webm', codecs: ['vorbis', 'opus'] },\n { name: 'M4A', mime: 'audio/mp4', codecs: ['mp4a.40.2'] },\n ];\n\n const supportedFormats: string[] = [];\n const missingCodecs: string[] = [];\n const capabilities: Record = {};\n\n for (const format of formats) {\n let bestSupport = '';\n let isSupported = false;\n\n // Test basic MIME type\n const basicSupport = audio.canPlayType(format.mime);\n capabilities[format.name + '_basic'] = basicSupport;\n\n if (basicSupport === 'probably' || basicSupport === 'maybe') {\n bestSupport = basicSupport;\n isSupported = true;\n }\n\n // Test with codecs\n for (const codec of format.codecs) {\n const codecSupport = audio.canPlayType(\n `${format.mime}; codecs=\"${codec}\"`\n );\n capabilities[format.name + '_' + codec] = codecSupport;\n\n if (codecSupport === 'probably') {\n bestSupport = 'probably';\n isSupported = true;\n } else if (codecSupport === 'maybe' && bestSupport !== 'probably') {\n bestSupport = 'maybe';\n isSupported = true;\n }\n }\n\n capabilities[format.name] = bestSupport;\n\n if (isSupported) {\n supportedFormats.push(format.name);\n } else {\n missingCodecs.push(format.name);\n }\n }\n\n // Check for additional Tauri-specific audio capabilities if available\n if (this.getEnvironment() === 'tauri' && window.__TAURI__) {\n try {\n // Try Tauri v2 API first, fallback to v1\n const invoke =\n window.__TAURI__.core?.invoke || window.__TAURI__.tauri?.invoke;\n\n if (!invoke) {\n throw new Error('Tauri invoke not available');\n }\n\n // Try to get system audio info from Tauri backend\n const systemAudioInfo = await invoke('get_system_audio_info').catch(\n () => null\n );\n if (systemAudioInfo && typeof systemAudioInfo === 'object') {\n capabilities['tauri_system_info'] = JSON.stringify(systemAudioInfo);\n\n // Enhanced format support based on system capabilities\n const audioInfo = systemAudioInfo as { supportedFormats?: string[] };\n if (audioInfo.supportedFormats) {\n audioInfo.supportedFormats.forEach((format: string) => {\n if (!supportedFormats.includes(format)) {\n supportedFormats.push(format);\n // Remove from missing codecs if it was there\n const missingIndex = missingCodecs.indexOf(format);\n if (missingIndex > -1) {\n missingCodecs.splice(missingIndex, 1);\n }\n }\n });\n }\n }\n } catch (error) {\n console.warn(\n '[TauriAudioService] Could not access Tauri backend for codec detection:',\n error\n );\n }\n }\n\n return { supportedFormats, missingCodecs, capabilities };\n }\n\n // Tauri-specific method to get audio file metadata\n public async getAudioMetadata(filePath: string): Promise<{\n duration?: number;\n bitrate?: number;\n sampleRate?: number;\n channels?: number;\n format?: string;\n } | null> {\n if (this.getEnvironment() !== 'tauri' || !window.__TAURI__) {\n return null;\n }\n\n try {\n // Try Tauri v2 API first, fallback to v1\n const invoke =\n window.__TAURI__.core?.invoke || window.__TAURI__.tauri?.invoke;\n\n if (!invoke) {\n throw new Error('Tauri invoke not available');\n }\n\n const result = await invoke('get_audio_metadata', { path: filePath });\n return result as {\n duration?: number;\n bitrate?: number;\n sampleRate?: number;\n channels?: number;\n format?: string;\n } | null;\n } catch (error) {\n console.warn('[TauriAudioService] Failed to get audio metadata:', error);\n return null;\n }\n }\n\n // Tauri-specific method to enumerate audio devices\n public async getAudioDevices(): Promise<{\n inputDevices: Array<{ id: string; name: string }>;\n outputDevices: Array<{ id: string; name: string }>;\n } | null> {\n if (this.getEnvironment() !== 'tauri' || !window.__TAURI__) {\n return null;\n }\n\n try {\n // Try Tauri v2 API first, fallback to v1\n const invoke =\n window.__TAURI__.core?.invoke || window.__TAURI__.tauri?.invoke;\n\n if (!invoke) {\n throw new Error('Tauri invoke not available');\n }\n\n const result = await invoke('get_audio_devices');\n return result as {\n inputDevices: Array<{ id: string; name: string }>;\n outputDevices: Array<{ id: string; name: string }>;\n } | null;\n } catch (error) {\n console.warn('[TauriAudioService] Failed to get audio devices:', error);\n return null;\n }\n }\n}\n","import { AudioProxyClient } from './client';\nimport { AudioServiceOptions } from './types';\n\n// Type declarations for Electron API\n/* eslint-disable no-unused-vars */\ninterface ElectronAPI {\n getSystemAudioInfo?: () => Promise<{\n supportedFormats?: string[];\n systemInfo?: string;\n }>;\n getAudioMetadata?: (filePath: string) => Promise<{\n duration?: number;\n bitrate?: number;\n sampleRate?: number;\n channels?: number;\n format?: string;\n }>;\n getAudioDevices?: () => Promise<{\n inputDevices: Array<{ id: string; name: string }>;\n outputDevices: Array<{ id: string; name: string }>;\n }>;\n getSystemAudioSettings?: () => Promise<{\n defaultInputDevice?: string;\n defaultOutputDevice?: string;\n masterVolume?: number;\n }>;\n}\n/* eslint-enable no-unused-vars */\n\n// Extend the existing Window interface from client.ts - don't redeclare electronAPI\n\nexport class ElectronAudioService {\n private audioClient: AudioProxyClient;\n\n constructor(options: AudioServiceOptions = {}) {\n // Use audioOptions if provided, otherwise use the options directly\n const clientOptions = options.audioOptions || options;\n this.audioClient = new AudioProxyClient(clientOptions);\n }\n\n public async getStreamableUrl(url: string): Promise {\n return await this.audioClient.getPlayableUrl(url);\n }\n\n public async canPlayStream(url: string) {\n return await this.audioClient.canPlayUrl(url);\n }\n\n public getEnvironment() {\n return this.audioClient.getEnvironment();\n }\n\n public async isProxyAvailable(): Promise {\n return await this.audioClient.isProxyAvailable();\n }\n\n public async checkSystemCodecs(): Promise<{\n supportedFormats: string[];\n missingCodecs: string[];\n capabilities: Record;\n electronVersion?: string;\n chromiumVersion?: string;\n }> {\n const audio = new Audio();\n const formats = [\n { name: 'MP3', mime: 'audio/mpeg', codecs: ['mp3'] },\n { name: 'OGG', mime: 'audio/ogg', codecs: ['vorbis', 'opus'] },\n { name: 'WAV', mime: 'audio/wav', codecs: ['pcm'] },\n { name: 'AAC', mime: 'audio/aac', codecs: ['mp4a.40.2'] },\n { name: 'FLAC', mime: 'audio/flac', codecs: ['flac'] },\n { name: 'WEBM', mime: 'audio/webm', codecs: ['vorbis', 'opus'] },\n { name: 'M4A', mime: 'audio/mp4', codecs: ['mp4a.40.2'] },\n ];\n\n const supportedFormats: string[] = [];\n const missingCodecs: string[] = [];\n const capabilities: Record = {};\n\n for (const format of formats) {\n let bestSupport = '';\n let isSupported = false;\n\n // Test basic MIME type\n const basicSupport = audio.canPlayType(format.mime);\n capabilities[format.name + '_basic'] = basicSupport;\n\n if (basicSupport === 'probably' || basicSupport === 'maybe') {\n bestSupport = basicSupport;\n isSupported = true;\n }\n\n // Test with codecs\n for (const codec of format.codecs) {\n const codecSupport = audio.canPlayType(\n `${format.mime}; codecs=\"${codec}\"`\n );\n capabilities[format.name + '_' + codec] = codecSupport;\n\n if (codecSupport === 'probably') {\n bestSupport = 'probably';\n isSupported = true;\n } else if (codecSupport === 'maybe' && bestSupport !== 'probably') {\n bestSupport = 'maybe';\n isSupported = true;\n }\n }\n\n capabilities[format.name] = bestSupport;\n\n if (isSupported) {\n supportedFormats.push(format.name);\n } else {\n missingCodecs.push(format.name);\n }\n }\n\n const result: {\n supportedFormats: string[];\n missingCodecs: string[];\n capabilities: Record;\n electronVersion?: string;\n chromiumVersion?: string;\n } = { supportedFormats, missingCodecs, capabilities };\n\n // Add Electron version info if available\n if (this.getEnvironment() === 'electron') {\n try {\n if (typeof process !== 'undefined' && process.versions) {\n result.electronVersion = process.versions.electron;\n result.chromiumVersion = process.versions.chrome;\n }\n\n // Integrate with Electron main process for system codec detection\n const electronAPI = window.electronAPI as ElectronAPI | undefined;\n if (electronAPI?.getSystemAudioInfo) {\n try {\n const systemAudioInfo = await electronAPI.getSystemAudioInfo();\n if (systemAudioInfo) {\n capabilities['electron_system_info'] =\n JSON.stringify(systemAudioInfo);\n\n // Enhanced format support based on system capabilities\n if (systemAudioInfo.supportedFormats) {\n systemAudioInfo.supportedFormats.forEach((format: string) => {\n if (!supportedFormats.includes(format)) {\n supportedFormats.push(format);\n // Remove from missing codecs if it was there\n const missingIndex = missingCodecs.indexOf(format);\n if (missingIndex > -1) {\n missingCodecs.splice(missingIndex, 1);\n }\n }\n });\n }\n }\n } catch (error) {\n console.warn(\n '[ElectronAudioService] Failed to get system audio info via IPC:',\n error\n );\n }\n }\n } catch (error) {\n console.warn(\n '[ElectronAudioService] Could not access Electron version info:',\n error\n );\n }\n }\n\n return result;\n }\n\n // Electron-specific method to get audio file metadata via main process\n public async getAudioMetadata(filePath: string): Promise<{\n duration?: number;\n bitrate?: number;\n sampleRate?: number;\n channels?: number;\n format?: string;\n } | null> {\n const electronAPI = window.electronAPI as ElectronAPI | undefined;\n if (\n this.getEnvironment() !== 'electron' ||\n !electronAPI?.getAudioMetadata\n ) {\n return null;\n }\n\n try {\n return await electronAPI.getAudioMetadata(filePath);\n } catch (error) {\n console.warn(\n '[ElectronAudioService] Failed to get audio metadata:',\n error\n );\n return null;\n }\n }\n\n // Electron-specific method to enumerate audio devices via main process\n public async getAudioDevices(): Promise<{\n inputDevices: Array<{ id: string; name: string }>;\n outputDevices: Array<{ id: string; name: string }>;\n } | null> {\n const electronAPI = window.electronAPI as ElectronAPI | undefined;\n if (this.getEnvironment() !== 'electron' || !electronAPI?.getAudioDevices) {\n return null;\n }\n\n try {\n return await electronAPI.getAudioDevices();\n } catch (error) {\n console.warn(\n '[ElectronAudioService] Failed to get audio devices:',\n error\n );\n return null;\n }\n }\n\n // Electron-specific method to get system audio settings\n public async getSystemAudioSettings(): Promise<{\n defaultInputDevice?: string;\n defaultOutputDevice?: string;\n masterVolume?: number;\n } | null> {\n const electronAPI = window.electronAPI as ElectronAPI | undefined;\n if (\n this.getEnvironment() !== 'electron' ||\n !electronAPI?.getSystemAudioSettings\n ) {\n return null;\n }\n\n try {\n return await electronAPI.getSystemAudioSettings();\n } catch (error) {\n console.warn(\n '[ElectronAudioService] Failed to get system audio settings:',\n error\n );\n return null;\n }\n }\n}\n","/**\n * Comprehensive Debugger for Desktop Audio Proxy\n * Makes it easy to see what's happening under the hood\n */\n\nexport type LogLevel = 'debug' | 'info' | 'warn' | 'error';\nexport type LogCategory =\n | 'client'\n | 'server'\n | 'proxy'\n | 'environment'\n | 'performance'\n | 'network'\n | 'tauri'\n | 'electron';\n\nexport interface DebugOptions {\n enabled?: boolean;\n level?: LogLevel;\n categories?: LogCategory[];\n timestamp?: boolean;\n stackTrace?: boolean;\n onLog?: (entry: DebugLogEntry) => void;\n}\n\nexport interface DebugLogEntry {\n timestamp: number;\n level: LogLevel;\n category: LogCategory;\n message: string;\n data?: unknown;\n stack?: string;\n}\n\nclass AudioProxyDebugger {\n private options: Required;\n private logs: DebugLogEntry[] = [];\n private maxLogs = 1000; // Keep last 1000 logs\n\n constructor(options: DebugOptions = {}) {\n this.options = {\n enabled: options.enabled ?? false,\n level: options.level ?? 'info',\n categories: options.categories ?? [],\n timestamp: options.timestamp ?? true,\n stackTrace: options.stackTrace ?? false,\n onLog: options.onLog ?? (() => {}),\n };\n }\n\n public setEnabled(enabled: boolean): void {\n this.options.enabled = enabled;\n }\n\n public setLevel(level: LogLevel): void {\n this.options.level = level;\n }\n\n public setCategories(categories: LogCategory[]): void {\n this.options.categories = categories;\n }\n\n private shouldLog(level: LogLevel, category: LogCategory): boolean {\n if (!this.options.enabled) return false;\n\n // Check category filter\n if (\n this.options.categories.length > 0 &&\n !this.options.categories.includes(category)\n ) {\n return false;\n }\n\n // Check log level\n const levels: LogLevel[] = ['debug', 'info', 'warn', 'error'];\n const currentLevelIndex = levels.indexOf(this.options.level);\n const messageLevelIndex = levels.indexOf(level);\n\n return messageLevelIndex >= currentLevelIndex;\n }\n\n public debug(\n category: LogCategory,\n message: string,\n data?: unknown\n ): void {\n this.log('debug', category, message, data);\n }\n\n public info(category: LogCategory, message: string, data?: unknown): void {\n this.log('info', category, message, data);\n }\n\n public warn(category: LogCategory, message: string, data?: unknown): void {\n this.log('warn', category, message, data);\n }\n\n public error(\n category: LogCategory,\n message: string,\n data?: unknown\n ): void {\n this.log('error', category, message, data);\n }\n\n private log(\n level: LogLevel,\n category: LogCategory,\n message: string,\n data?: unknown\n ): void {\n if (!this.shouldLog(level, category)) return;\n\n const entry: DebugLogEntry = {\n timestamp: Date.now(),\n level,\n category,\n message,\n data,\n stack: this.options.stackTrace ? new Error().stack : undefined,\n };\n\n // Store in memory\n this.logs.push(entry);\n if (this.logs.length > this.maxLogs) {\n this.logs.shift();\n }\n\n // Call custom handler\n this.options.onLog(entry);\n\n // Console output\n this.logToConsole(entry);\n }\n\n private logToConsole(entry: DebugLogEntry): void {\n const timestamp = this.options.timestamp\n ? `[${new Date(entry.timestamp).toISOString()}]`\n : '';\n const prefix = `${timestamp} [${entry.category.toUpperCase()}]`;\n const message = `${prefix} ${entry.message}`;\n\n const consoleMethod = entry.level === 'error' ? 'error' :\n entry.level === 'warn' ? 'warn' :\n entry.level === 'debug' ? 'debug' : 'log';\n\n if (entry.data !== undefined) {\n console[consoleMethod](message, entry.data);\n } else {\n console[consoleMethod](message);\n }\n\n if (entry.stack && entry.level === 'error') {\n console.error('Stack trace:', entry.stack);\n }\n }\n\n public getLogs(\n filter?: {\n level?: LogLevel;\n category?: LogCategory;\n since?: number;\n }\n ): DebugLogEntry[] {\n let filtered = this.logs;\n\n if (filter?.level) {\n filtered = filtered.filter(log => log.level === filter.level);\n }\n\n if (filter?.category) {\n filtered = filtered.filter(log => log.category === filter.category);\n }\n\n if (filter?.since !== undefined) {\n filtered = filtered.filter(log => log.timestamp >= filter.since!);\n }\n\n return filtered;\n }\n\n public clearLogs(): void {\n this.logs = [];\n }\n\n public exportLogs(): string {\n return JSON.stringify(this.logs, null, 2);\n }\n\n public getStats(): {\n total: number;\n byLevel: Record;\n byCategory: Record;\n } {\n const byLevel: Record = {\n debug: 0,\n info: 0,\n warn: 0,\n error: 0,\n };\n\n const byCategory: Record = {\n client: 0,\n server: 0,\n proxy: 0,\n environment: 0,\n performance: 0,\n network: 0,\n tauri: 0,\n electron: 0,\n };\n\n this.logs.forEach(log => {\n byLevel[log.level]++;\n byCategory[log.category]++;\n });\n\n return {\n total: this.logs.length,\n byLevel,\n byCategory,\n };\n }\n\n public printStats(): void {\n const stats = this.getStats();\n console.log('=== Desktop Audio Proxy Debug Stats ===');\n console.log(`Total Logs: ${stats.total}`);\n console.log('\\nBy Level:');\n Object.entries(stats.byLevel).forEach(([level, count]) => {\n if (count > 0) {\n console.log(` ${level}: ${count}`);\n }\n });\n console.log('\\nBy Category:');\n Object.entries(stats.byCategory).forEach(([category, count]) => {\n if (count > 0) {\n console.log(` ${category}: ${count}`);\n }\n });\n }\n}\n\n// Global singleton instance\nlet globalDebugger: AudioProxyDebugger | null = null;\n\nexport function getDebugger(options?: DebugOptions): AudioProxyDebugger {\n if (!globalDebugger) {\n globalDebugger = new AudioProxyDebugger(options);\n } else if (options) {\n // Update options if provided\n if (options.enabled !== undefined) globalDebugger.setEnabled(options.enabled);\n if (options.level) globalDebugger.setLevel(options.level);\n if (options.categories) globalDebugger.setCategories(options.categories);\n }\n return globalDebugger;\n}\n\nexport function enableDebug(\n level: LogLevel = 'debug',\n categories?: LogCategory[]\n): AudioProxyDebugger {\n const debug = getDebugger({\n enabled: true,\n level,\n categories,\n timestamp: true,\n });\n console.log('[DebugMode] Desktop Audio Proxy debugging enabled');\n console.log(`[DebugMode] Log level: ${level}`);\n if (categories) {\n console.log(`[DebugMode] Categories: ${categories.join(', ')}`);\n } else {\n console.log('[DebugMode] Categories: all');\n }\n return debug;\n}\n\nexport function disableDebug(): void {\n const debug = getDebugger();\n debug.setEnabled(false);\n console.log('[DebugMode] Desktop Audio Proxy debugging disabled');\n}\n\n// Export the class for advanced users\nexport { AudioProxyDebugger };\n","/*!\n * depd\n * Copyright(c) 2015 Douglas Christopher Wilson\n * MIT Licensed\n */\n\n'use strict'\n\n/**\n * Module exports.\n * @public\n */\n\nmodule.exports = depd\n\n/**\n * Create deprecate for namespace in caller.\n */\n\nfunction depd (namespace) {\n if (!namespace) {\n throw new TypeError('argument namespace is required')\n }\n\n function deprecate (message) {\n // no-op in browser\n }\n\n deprecate._file = undefined\n deprecate._ignored = true\n deprecate._namespace = namespace\n deprecate._traced = false\n deprecate._warned = Object.create(null)\n\n deprecate.function = wrapfunction\n deprecate.property = wrapproperty\n\n return deprecate\n}\n\n/**\n * Return a wrapped function in a deprecation message.\n *\n * This is a no-op version of the wrapper, which does nothing but call\n * validation.\n */\n\nfunction wrapfunction (fn, message) {\n if (typeof fn !== 'function') {\n throw new TypeError('argument fn must be a function')\n }\n\n return fn\n}\n\n/**\n * Wrap property in a deprecation message.\n *\n * This is a no-op version of the wrapper, which does nothing but call\n * validation.\n */\n\nfunction wrapproperty (obj, prop, message) {\n if (!obj || (typeof obj !== 'object' && typeof obj !== 'function')) {\n throw new TypeError('argument obj must be object')\n }\n\n var descriptor = Object.getOwnPropertyDescriptor(obj, prop)\n\n if (!descriptor) {\n throw new TypeError('must call property on owner object')\n }\n\n if (!descriptor.configurable) {\n throw new TypeError('property must be configurable')\n }\n}\n","/*!\n * bytes\n * Copyright(c) 2012-2014 TJ Holowaychuk\n * Copyright(c) 2015 Jed Watson\n * MIT Licensed\n */\n\n'use strict';\n\n/**\n * Module exports.\n * @public\n */\n\nmodule.exports = bytes;\nmodule.exports.format = format;\nmodule.exports.parse = parse;\n\n/**\n * Module variables.\n * @private\n */\n\nvar formatThousandsRegExp = /\\B(?=(\\d{3})+(?!\\d))/g;\n\nvar formatDecimalsRegExp = /(?:\\.0*|(\\.[^0]+)0+)$/;\n\nvar map = {\n b: 1,\n kb: 1 << 10,\n mb: 1 << 20,\n gb: 1 << 30,\n tb: Math.pow(1024, 4),\n pb: Math.pow(1024, 5),\n};\n\nvar parseRegExp = /^((-|\\+)?(\\d+(?:\\.\\d+)?)) *(kb|mb|gb|tb|pb)$/i;\n\n/**\n * Convert the given value in bytes into a string or parse to string to an integer in bytes.\n *\n * @param {string|number} value\n * @param {{\n * case: [string],\n * decimalPlaces: [number]\n * fixedDecimals: [boolean]\n * thousandsSeparator: [string]\n * unitSeparator: [string]\n * }} [options] bytes options.\n *\n * @returns {string|number|null}\n */\n\nfunction bytes(value, options) {\n if (typeof value === 'string') {\n return parse(value);\n }\n\n if (typeof value === 'number') {\n return format(value, options);\n }\n\n return null;\n}\n\n/**\n * Format the given value in bytes into a string.\n *\n * If the value is negative, it is kept as such. If it is a float,\n * it is rounded.\n *\n * @param {number} value\n * @param {object} [options]\n * @param {number} [options.decimalPlaces=2]\n * @param {number} [options.fixedDecimals=false]\n * @param {string} [options.thousandsSeparator=]\n * @param {string} [options.unit=]\n * @param {string} [options.unitSeparator=]\n *\n * @returns {string|null}\n * @public\n */\n\nfunction format(value, options) {\n if (!Number.isFinite(value)) {\n return null;\n }\n\n var mag = Math.abs(value);\n var thousandsSeparator = (options && options.thousandsSeparator) || '';\n var unitSeparator = (options && options.unitSeparator) || '';\n var decimalPlaces = (options && options.decimalPlaces !== undefined) ? options.decimalPlaces : 2;\n var fixedDecimals = Boolean(options && options.fixedDecimals);\n var unit = (options && options.unit) || '';\n\n if (!unit || !map[unit.toLowerCase()]) {\n if (mag >= map.pb) {\n unit = 'PB';\n } else if (mag >= map.tb) {\n unit = 'TB';\n } else if (mag >= map.gb) {\n unit = 'GB';\n } else if (mag >= map.mb) {\n unit = 'MB';\n } else if (mag >= map.kb) {\n unit = 'KB';\n } else {\n unit = 'B';\n }\n }\n\n var val = value / map[unit.toLowerCase()];\n var str = val.toFixed(decimalPlaces);\n\n if (!fixedDecimals) {\n str = str.replace(formatDecimalsRegExp, '$1');\n }\n\n if (thousandsSeparator) {\n str = str.split('.').map(function (s, i) {\n return i === 0\n ? s.replace(formatThousandsRegExp, thousandsSeparator)\n : s\n }).join('.');\n }\n\n return str + unitSeparator + unit;\n}\n\n/**\n * Parse the string value into an integer in bytes.\n *\n * If no unit is given, it is assumed the value is in bytes.\n *\n * @param {number|string} val\n *\n * @returns {number|null}\n * @public\n */\n\nfunction parse(val) {\n if (typeof val === 'number' && !isNaN(val)) {\n return val;\n }\n\n if (typeof val !== 'string') {\n return null;\n }\n\n // Test if the string passed is valid\n var results = parseRegExp.exec(val);\n var floatValue;\n var unit = 'b';\n\n if (!results) {\n // Nothing could be extracted from the given string\n floatValue = parseInt(val, 10);\n unit = 'b'\n } else {\n // Retrieve the value and the unit\n floatValue = parseFloat(results[1]);\n unit = results[4].toLowerCase();\n }\n\n if (isNaN(floatValue)) {\n return null;\n }\n\n return Math.floor(map[unit] * floatValue);\n}\n","/*!\n * content-type\n * Copyright(c) 2015 Douglas Christopher Wilson\n * MIT Licensed\n */\n\n'use strict'\n\n/**\n * RegExp to match *( \";\" parameter ) in RFC 7231 sec 3.1.1.1\n *\n * parameter = token \"=\" ( token / quoted-string )\n * token = 1*tchar\n * tchar = \"!\" / \"#\" / \"$\" / \"%\" / \"&\" / \"'\" / \"*\"\n * / \"+\" / \"-\" / \".\" / \"^\" / \"_\" / \"`\" / \"|\" / \"~\"\n * / DIGIT / ALPHA\n * ; any VCHAR, except delimiters\n * quoted-string = DQUOTE *( qdtext / quoted-pair ) DQUOTE\n * qdtext = HTAB / SP / %x21 / %x23-5B / %x5D-7E / obs-text\n * obs-text = %x80-FF\n * quoted-pair = \"\\\" ( HTAB / SP / VCHAR / obs-text )\n */\nvar PARAM_REGEXP = /; *([!#$%&'*+.^_`|~0-9A-Za-z-]+) *= *(\"(?:[\\u000b\\u0020\\u0021\\u0023-\\u005b\\u005d-\\u007e\\u0080-\\u00ff]|\\\\[\\u000b\\u0020-\\u00ff])*\"|[!#$%&'*+.^_`|~0-9A-Za-z-]+) */g // eslint-disable-line no-control-regex\nvar TEXT_REGEXP = /^[\\u000b\\u0020-\\u007e\\u0080-\\u00ff]+$/ // eslint-disable-line no-control-regex\nvar TOKEN_REGEXP = /^[!#$%&'*+.^_`|~0-9A-Za-z-]+$/\n\n/**\n * RegExp to match quoted-pair in RFC 7230 sec 3.2.6\n *\n * quoted-pair = \"\\\" ( HTAB / SP / VCHAR / obs-text )\n * obs-text = %x80-FF\n */\nvar QESC_REGEXP = /\\\\([\\u000b\\u0020-\\u00ff])/g // eslint-disable-line no-control-regex\n\n/**\n * RegExp to match chars that must be quoted-pair in RFC 7230 sec 3.2.6\n */\nvar QUOTE_REGEXP = /([\\\\\"])/g\n\n/**\n * RegExp to match type in RFC 7231 sec 3.1.1.1\n *\n * media-type = type \"/\" subtype\n * type = token\n * subtype = token\n */\nvar TYPE_REGEXP = /^[!#$%&'*+.^_`|~0-9A-Za-z-]+\\/[!#$%&'*+.^_`|~0-9A-Za-z-]+$/\n\n/**\n * Module exports.\n * @public\n */\n\nexports.format = format\nexports.parse = parse\n\n/**\n * Format object to media type.\n *\n * @param {object} obj\n * @return {string}\n * @public\n */\n\nfunction format (obj) {\n if (!obj || typeof obj !== 'object') {\n throw new TypeError('argument obj is required')\n }\n\n var parameters = obj.parameters\n var type = obj.type\n\n if (!type || !TYPE_REGEXP.test(type)) {\n throw new TypeError('invalid type')\n }\n\n var string = type\n\n // append parameters\n if (parameters && typeof parameters === 'object') {\n var param\n var params = Object.keys(parameters).sort()\n\n for (var i = 0; i < params.length; i++) {\n param = params[i]\n\n if (!TOKEN_REGEXP.test(param)) {\n throw new TypeError('invalid parameter name')\n }\n\n string += '; ' + param + '=' + qstring(parameters[param])\n }\n }\n\n return string\n}\n\n/**\n * Parse media type to object.\n *\n * @param {string|object} string\n * @return {Object}\n * @public\n */\n\nfunction parse (string) {\n if (!string) {\n throw new TypeError('argument string is required')\n }\n\n // support req/res-like objects as argument\n var header = typeof string === 'object'\n ? getcontenttype(string)\n : string\n\n if (typeof header !== 'string') {\n throw new TypeError('argument string is required to be a string')\n }\n\n var index = header.indexOf(';')\n var type = index !== -1\n ? header.slice(0, index).trim()\n : header.trim()\n\n if (!TYPE_REGEXP.test(type)) {\n throw new TypeError('invalid media type')\n }\n\n var obj = new ContentType(type.toLowerCase())\n\n // parse parameters\n if (index !== -1) {\n var key\n var match\n var value\n\n PARAM_REGEXP.lastIndex = index\n\n while ((match = PARAM_REGEXP.exec(header))) {\n if (match.index !== index) {\n throw new TypeError('invalid parameter format')\n }\n\n index += match[0].length\n key = match[1].toLowerCase()\n value = match[2]\n\n if (value.charCodeAt(0) === 0x22 /* \" */) {\n // remove quotes\n value = value.slice(1, -1)\n\n // remove escapes\n if (value.indexOf('\\\\') !== -1) {\n value = value.replace(QESC_REGEXP, '$1')\n }\n }\n\n obj.parameters[key] = value\n }\n\n if (index !== header.length) {\n throw new TypeError('invalid parameter format')\n }\n }\n\n return obj\n}\n\n/**\n * Get content-type from req/res objects.\n *\n * @param {object}\n * @return {Object}\n * @private\n */\n\nfunction getcontenttype (obj) {\n var header\n\n if (typeof obj.getHeader === 'function') {\n // res-like\n header = obj.getHeader('content-type')\n } else if (typeof obj.headers === 'object') {\n // req-like\n header = obj.headers && obj.headers['content-type']\n }\n\n if (typeof header !== 'string') {\n throw new TypeError('content-type header is missing from object')\n }\n\n return header\n}\n\n/**\n * Quote a string if necessary.\n *\n * @param {string} val\n * @return {string}\n * @private\n */\n\nfunction qstring (val) {\n var str = String(val)\n\n // no need to quote tokens\n if (TOKEN_REGEXP.test(str)) {\n return str\n }\n\n if (str.length > 0 && !TEXT_REGEXP.test(str)) {\n throw new TypeError('invalid parameter value')\n }\n\n return '\"' + str.replace(QUOTE_REGEXP, '\\\\$1') + '\"'\n}\n\n/**\n * Class to represent a content type.\n * @private\n */\nfunction ContentType (type) {\n this.parameters = Object.create(null)\n this.type = type\n}\n","'use strict'\n/* eslint no-proto: 0 */\nmodule.exports = Object.setPrototypeOf || ({ __proto__: [] } instanceof Array ? setProtoOf : mixinProperties)\n\nfunction setProtoOf (obj, proto) {\n obj.__proto__ = proto\n return obj\n}\n\nfunction mixinProperties (obj, proto) {\n for (var prop in proto) {\n if (!Object.prototype.hasOwnProperty.call(obj, prop)) {\n obj[prop] = proto[prop]\n }\n }\n return obj\n}\n","/*!\n * statuses\n * Copyright(c) 2014 Jonathan Ong\n * Copyright(c) 2016 Douglas Christopher Wilson\n * MIT Licensed\n */\n\n'use strict'\n\n/**\n * Module dependencies.\n * @private\n */\n\nvar codes = require('./codes.json')\n\n/**\n * Module exports.\n * @public\n */\n\nmodule.exports = status\n\n// status code to message map\nstatus.message = codes\n\n// status message (lower-case) to code map\nstatus.code = createMessageToStatusCodeMap(codes)\n\n// array of status codes\nstatus.codes = createStatusCodeList(codes)\n\n// status codes for redirects\nstatus.redirect = {\n 300: true,\n 301: true,\n 302: true,\n 303: true,\n 305: true,\n 307: true,\n 308: true\n}\n\n// status codes for empty bodies\nstatus.empty = {\n 204: true,\n 205: true,\n 304: true\n}\n\n// status codes for when you should retry the request\nstatus.retry = {\n 502: true,\n 503: true,\n 504: true\n}\n\n/**\n * Create a map of message to status code.\n * @private\n */\n\nfunction createMessageToStatusCodeMap (codes) {\n var map = {}\n\n Object.keys(codes).forEach(function forEachCode (code) {\n var message = codes[code]\n var status = Number(code)\n\n // populate map\n map[message.toLowerCase()] = status\n })\n\n return map\n}\n\n/**\n * Create a list of all status codes.\n * @private\n */\n\nfunction createStatusCodeList (codes) {\n return Object.keys(codes).map(function mapCode (code) {\n return Number(code)\n })\n}\n\n/**\n * Get the status code for given message.\n * @private\n */\n\nfunction getStatusCode (message) {\n var msg = message.toLowerCase()\n\n if (!Object.prototype.hasOwnProperty.call(status.code, msg)) {\n throw new Error('invalid status message: \"' + message + '\"')\n }\n\n return status.code[msg]\n}\n\n/**\n * Get the status message for given code.\n * @private\n */\n\nfunction getStatusMessage (code) {\n if (!Object.prototype.hasOwnProperty.call(status.message, code)) {\n throw new Error('invalid status code: ' + code)\n }\n\n return status.message[code]\n}\n\n/**\n * Get the status code.\n *\n * Given a number, this will throw if it is not a known status\n * code, otherwise the code will be returned. Given a string,\n * the string will be parsed for a number and return the code\n * if valid, otherwise will lookup the code assuming this is\n * the status message.\n *\n * @param {string|number} code\n * @returns {number}\n * @public\n */\n\nfunction status (code) {\n if (typeof code === 'number') {\n return getStatusMessage(code)\n }\n\n if (typeof code !== 'string') {\n throw new TypeError('code must be a number or string')\n }\n\n // '403'\n var n = parseInt(code, 10)\n if (!isNaN(n)) {\n return getStatusMessage(n)\n }\n\n return getStatusCode(code)\n}\n","if (typeof Object.create === 'function') {\n // implementation from standard node.js 'util' module\n module.exports = function inherits(ctor, superCtor) {\n if (superCtor) {\n ctor.super_ = superCtor\n ctor.prototype = Object.create(superCtor.prototype, {\n constructor: {\n value: ctor,\n enumerable: false,\n writable: true,\n configurable: true\n }\n })\n }\n };\n} else {\n // old school shim for old browsers\n module.exports = function inherits(ctor, superCtor) {\n if (superCtor) {\n ctor.super_ = superCtor\n var TempCtor = function () {}\n TempCtor.prototype = superCtor.prototype\n ctor.prototype = new TempCtor()\n ctor.prototype.constructor = ctor\n }\n }\n}\n","/*!\n * toidentifier\n * Copyright(c) 2016 Douglas Christopher Wilson\n * MIT Licensed\n */\n\n'use strict'\n\n/**\n * Module exports.\n * @public\n */\n\nmodule.exports = toIdentifier\n\n/**\n * Trasform the given string into a JavaScript identifier\n *\n * @param {string} str\n * @returns {string}\n * @public\n */\n\nfunction toIdentifier (str) {\n return str\n .split(' ')\n .map(function (token) {\n return token.slice(0, 1).toUpperCase() + token.slice(1)\n })\n .join('')\n .replace(/[^ _0-9a-z]/gi, '')\n}\n","/*!\n * http-errors\n * Copyright(c) 2014 Jonathan Ong\n * Copyright(c) 2016 Douglas Christopher Wilson\n * MIT Licensed\n */\n\n'use strict'\n\n/**\n * Module dependencies.\n * @private\n */\n\nvar deprecate = require('depd')('http-errors')\nvar setPrototypeOf = require('setprototypeof')\nvar statuses = require('statuses')\nvar inherits = require('inherits')\nvar toIdentifier = require('toidentifier')\n\n/**\n * Module exports.\n * @public\n */\n\nmodule.exports = createError\nmodule.exports.HttpError = createHttpErrorConstructor()\nmodule.exports.isHttpError = createIsHttpErrorFunction(module.exports.HttpError)\n\n// Populate exports for all constructors\npopulateConstructorExports(module.exports, statuses.codes, module.exports.HttpError)\n\n/**\n * Get the code class of a status code.\n * @private\n */\n\nfunction codeClass (status) {\n return Number(String(status).charAt(0) + '00')\n}\n\n/**\n * Create a new HTTP Error.\n *\n * @returns {Error}\n * @public\n */\n\nfunction createError () {\n // so much arity going on ~_~\n var err\n var msg\n var status = 500\n var props = {}\n for (var i = 0; i < arguments.length; i++) {\n var arg = arguments[i]\n var type = typeof arg\n if (type === 'object' && arg instanceof Error) {\n err = arg\n status = err.status || err.statusCode || status\n } else if (type === 'number' && i === 0) {\n status = arg\n } else if (type === 'string') {\n msg = arg\n } else if (type === 'object') {\n props = arg\n } else {\n throw new TypeError('argument #' + (i + 1) + ' unsupported type ' + type)\n }\n }\n\n if (typeof status === 'number' && (status < 400 || status >= 600)) {\n deprecate('non-error status code; use only 4xx or 5xx status codes')\n }\n\n if (typeof status !== 'number' ||\n (!statuses.message[status] && (status < 400 || status >= 600))) {\n status = 500\n }\n\n // constructor\n var HttpError = createError[status] || createError[codeClass(status)]\n\n if (!err) {\n // create error\n err = HttpError\n ? new HttpError(msg)\n : new Error(msg || statuses.message[status])\n Error.captureStackTrace(err, createError)\n }\n\n if (!HttpError || !(err instanceof HttpError) || err.status !== status) {\n // add properties to generic error\n err.expose = status < 500\n err.status = err.statusCode = status\n }\n\n for (var key in props) {\n if (key !== 'status' && key !== 'statusCode') {\n err[key] = props[key]\n }\n }\n\n return err\n}\n\n/**\n * Create HTTP error abstract base class.\n * @private\n */\n\nfunction createHttpErrorConstructor () {\n function HttpError () {\n throw new TypeError('cannot construct abstract class')\n }\n\n inherits(HttpError, Error)\n\n return HttpError\n}\n\n/**\n * Create a constructor for a client error.\n * @private\n */\n\nfunction createClientErrorConstructor (HttpError, name, code) {\n var className = toClassName(name)\n\n function ClientError (message) {\n // create the error object\n var msg = message != null ? message : statuses.message[code]\n var err = new Error(msg)\n\n // capture a stack trace to the construction point\n Error.captureStackTrace(err, ClientError)\n\n // adjust the [[Prototype]]\n setPrototypeOf(err, ClientError.prototype)\n\n // redefine the error message\n Object.defineProperty(err, 'message', {\n enumerable: true,\n configurable: true,\n value: msg,\n writable: true\n })\n\n // redefine the error name\n Object.defineProperty(err, 'name', {\n enumerable: false,\n configurable: true,\n value: className,\n writable: true\n })\n\n return err\n }\n\n inherits(ClientError, HttpError)\n nameFunc(ClientError, className)\n\n ClientError.prototype.status = code\n ClientError.prototype.statusCode = code\n ClientError.prototype.expose = true\n\n return ClientError\n}\n\n/**\n * Create function to test is a value is a HttpError.\n * @private\n */\n\nfunction createIsHttpErrorFunction (HttpError) {\n return function isHttpError (val) {\n if (!val || typeof val !== 'object') {\n return false\n }\n\n if (val instanceof HttpError) {\n return true\n }\n\n return val instanceof Error &&\n typeof val.expose === 'boolean' &&\n typeof val.statusCode === 'number' && val.status === val.statusCode\n }\n}\n\n/**\n * Create a constructor for a server error.\n * @private\n */\n\nfunction createServerErrorConstructor (HttpError, name, code) {\n var className = toClassName(name)\n\n function ServerError (message) {\n // create the error object\n var msg = message != null ? message : statuses.message[code]\n var err = new Error(msg)\n\n // capture a stack trace to the construction point\n Error.captureStackTrace(err, ServerError)\n\n // adjust the [[Prototype]]\n setPrototypeOf(err, ServerError.prototype)\n\n // redefine the error message\n Object.defineProperty(err, 'message', {\n enumerable: true,\n configurable: true,\n value: msg,\n writable: true\n })\n\n // redefine the error name\n Object.defineProperty(err, 'name', {\n enumerable: false,\n configurable: true,\n value: className,\n writable: true\n })\n\n return err\n }\n\n inherits(ServerError, HttpError)\n nameFunc(ServerError, className)\n\n ServerError.prototype.status = code\n ServerError.prototype.statusCode = code\n ServerError.prototype.expose = false\n\n return ServerError\n}\n\n/**\n * Set the name of a function, if possible.\n * @private\n */\n\nfunction nameFunc (func, name) {\n var desc = Object.getOwnPropertyDescriptor(func, 'name')\n\n if (desc && desc.configurable) {\n desc.value = name\n Object.defineProperty(func, 'name', desc)\n }\n}\n\n/**\n * Populate the exports object with constructors for every error class.\n * @private\n */\n\nfunction populateConstructorExports (exports, codes, HttpError) {\n codes.forEach(function forEachCode (code) {\n var CodeError\n var name = toIdentifier(statuses.message[code])\n\n switch (codeClass(code)) {\n case 400:\n CodeError = createClientErrorConstructor(HttpError, name, code)\n break\n case 500:\n CodeError = createServerErrorConstructor(HttpError, name, code)\n break\n }\n\n if (CodeError) {\n // export the constructor\n exports[code] = CodeError\n exports[name] = CodeError\n }\n })\n}\n\n/**\n * Get a class name from a name identifier.\n * @private\n */\n\nfunction toClassName (name) {\n return name.substr(-5) !== 'Error'\n ? name + 'Error'\n : name\n}\n","/**\n * Helpers.\n */\n\nvar s = 1000;\nvar m = s * 60;\nvar h = m * 60;\nvar d = h * 24;\nvar y = d * 365.25;\n\n/**\n * Parse or format the given `val`.\n *\n * Options:\n *\n * - `long` verbose formatting [false]\n *\n * @param {String|Number} val\n * @param {Object} [options]\n * @throws {Error} throw an error if val is not a non-empty string or a number\n * @return {String|Number}\n * @api public\n */\n\nmodule.exports = function(val, options) {\n options = options || {};\n var type = typeof val;\n if (type === 'string' && val.length > 0) {\n return parse(val);\n } else if (type === 'number' && isNaN(val) === false) {\n return options.long ? fmtLong(val) : fmtShort(val);\n }\n throw new Error(\n 'val is not a non-empty string or a valid number. val=' +\n JSON.stringify(val)\n );\n};\n\n/**\n * Parse the given `str` and return milliseconds.\n *\n * @param {String} str\n * @return {Number}\n * @api private\n */\n\nfunction parse(str) {\n str = String(str);\n if (str.length > 100) {\n return;\n }\n var match = /^((?:\\d+)?\\.?\\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|years?|yrs?|y)?$/i.exec(\n str\n );\n if (!match) {\n return;\n }\n var n = parseFloat(match[1]);\n var type = (match[2] || 'ms').toLowerCase();\n switch (type) {\n case 'years':\n case 'year':\n case 'yrs':\n case 'yr':\n case 'y':\n return n * y;\n case 'days':\n case 'day':\n case 'd':\n return n * d;\n case 'hours':\n case 'hour':\n case 'hrs':\n case 'hr':\n case 'h':\n return n * h;\n case 'minutes':\n case 'minute':\n case 'mins':\n case 'min':\n case 'm':\n return n * m;\n case 'seconds':\n case 'second':\n case 'secs':\n case 'sec':\n case 's':\n return n * s;\n case 'milliseconds':\n case 'millisecond':\n case 'msecs':\n case 'msec':\n case 'ms':\n return n;\n default:\n return undefined;\n }\n}\n\n/**\n * Short format for `ms`.\n *\n * @param {Number} ms\n * @return {String}\n * @api private\n */\n\nfunction fmtShort(ms) {\n if (ms >= d) {\n return Math.round(ms / d) + 'd';\n }\n if (ms >= h) {\n return Math.round(ms / h) + 'h';\n }\n if (ms >= m) {\n return Math.round(ms / m) + 'm';\n }\n if (ms >= s) {\n return Math.round(ms / s) + 's';\n }\n return ms + 'ms';\n}\n\n/**\n * Long format for `ms`.\n *\n * @param {Number} ms\n * @return {String}\n * @api private\n */\n\nfunction fmtLong(ms) {\n return plural(ms, d, 'day') ||\n plural(ms, h, 'hour') ||\n plural(ms, m, 'minute') ||\n plural(ms, s, 'second') ||\n ms + ' ms';\n}\n\n/**\n * Pluralization helper.\n */\n\nfunction plural(ms, n, name) {\n if (ms < n) {\n return;\n }\n if (ms < n * 1.5) {\n return Math.floor(ms / n) + ' ' + name;\n }\n return Math.ceil(ms / n) + ' ' + name + 's';\n}\n","\n/**\n * This is the common logic for both the Node.js and web browser\n * implementations of `debug()`.\n *\n * Expose `debug()` as the module.\n */\n\nexports = module.exports = createDebug.debug = createDebug['default'] = createDebug;\nexports.coerce = coerce;\nexports.disable = disable;\nexports.enable = enable;\nexports.enabled = enabled;\nexports.humanize = require('ms');\n\n/**\n * The currently active debug mode names, and names to skip.\n */\n\nexports.names = [];\nexports.skips = [];\n\n/**\n * Map of special \"%n\" handling functions, for the debug \"format\" argument.\n *\n * Valid key names are a single, lower or upper-case letter, i.e. \"n\" and \"N\".\n */\n\nexports.formatters = {};\n\n/**\n * Previous log timestamp.\n */\n\nvar prevTime;\n\n/**\n * Select a color.\n * @param {String} namespace\n * @return {Number}\n * @api private\n */\n\nfunction selectColor(namespace) {\n var hash = 0, i;\n\n for (i in namespace) {\n hash = ((hash << 5) - hash) + namespace.charCodeAt(i);\n hash |= 0; // Convert to 32bit integer\n }\n\n return exports.colors[Math.abs(hash) % exports.colors.length];\n}\n\n/**\n * Create a debugger with the given `namespace`.\n *\n * @param {String} namespace\n * @return {Function}\n * @api public\n */\n\nfunction createDebug(namespace) {\n\n function debug() {\n // disabled?\n if (!debug.enabled) return;\n\n var self = debug;\n\n // set `diff` timestamp\n var curr = +new Date();\n var ms = curr - (prevTime || curr);\n self.diff = ms;\n self.prev = prevTime;\n self.curr = curr;\n prevTime = curr;\n\n // turn the `arguments` into a proper Array\n var args = new Array(arguments.length);\n for (var i = 0; i < args.length; i++) {\n args[i] = arguments[i];\n }\n\n args[0] = exports.coerce(args[0]);\n\n if ('string' !== typeof args[0]) {\n // anything else let's inspect with %O\n args.unshift('%O');\n }\n\n // apply any `formatters` transformations\n var index = 0;\n args[0] = args[0].replace(/%([a-zA-Z%])/g, function(match, format) {\n // if we encounter an escaped % then don't increase the array index\n if (match === '%%') return match;\n index++;\n var formatter = exports.formatters[format];\n if ('function' === typeof formatter) {\n var val = args[index];\n match = formatter.call(self, val);\n\n // now we need to remove `args[index]` since it's inlined in the `format`\n args.splice(index, 1);\n index--;\n }\n return match;\n });\n\n // apply env-specific formatting (colors, etc.)\n exports.formatArgs.call(self, args);\n\n var logFn = debug.log || exports.log || console.log.bind(console);\n logFn.apply(self, args);\n }\n\n debug.namespace = namespace;\n debug.enabled = exports.enabled(namespace);\n debug.useColors = exports.useColors();\n debug.color = selectColor(namespace);\n\n // env-specific initialization logic for debug instances\n if ('function' === typeof exports.init) {\n exports.init(debug);\n }\n\n return debug;\n}\n\n/**\n * Enables a debug mode by namespaces. This can include modes\n * separated by a colon and wildcards.\n *\n * @param {String} namespaces\n * @api public\n */\n\nfunction enable(namespaces) {\n exports.save(namespaces);\n\n exports.names = [];\n exports.skips = [];\n\n var split = (typeof namespaces === 'string' ? namespaces : '').split(/[\\s,]+/);\n var len = split.length;\n\n for (var i = 0; i < len; i++) {\n if (!split[i]) continue; // ignore empty strings\n namespaces = split[i].replace(/\\*/g, '.*?');\n if (namespaces[0] === '-') {\n exports.skips.push(new RegExp('^' + namespaces.substr(1) + '$'));\n } else {\n exports.names.push(new RegExp('^' + namespaces + '$'));\n }\n }\n}\n\n/**\n * Disable debug output.\n *\n * @api public\n */\n\nfunction disable() {\n exports.enable('');\n}\n\n/**\n * Returns true if the given mode name is enabled, false otherwise.\n *\n * @param {String} name\n * @return {Boolean}\n * @api public\n */\n\nfunction enabled(name) {\n var i, len;\n for (i = 0, len = exports.skips.length; i < len; i++) {\n if (exports.skips[i].test(name)) {\n return false;\n }\n }\n for (i = 0, len = exports.names.length; i < len; i++) {\n if (exports.names[i].test(name)) {\n return true;\n }\n }\n return false;\n}\n\n/**\n * Coerce `val`.\n *\n * @param {Mixed} val\n * @return {Mixed}\n * @api private\n */\n\nfunction coerce(val) {\n if (val instanceof Error) return val.stack || val.message;\n return val;\n}\n","/**\n * This is the web browser implementation of `debug()`.\n *\n * Expose `debug()` as the module.\n */\n\nexports = module.exports = require('./debug');\nexports.log = log;\nexports.formatArgs = formatArgs;\nexports.save = save;\nexports.load = load;\nexports.useColors = useColors;\nexports.storage = 'undefined' != typeof chrome\n && 'undefined' != typeof chrome.storage\n ? chrome.storage.local\n : localstorage();\n\n/**\n * Colors.\n */\n\nexports.colors = [\n 'lightseagreen',\n 'forestgreen',\n 'goldenrod',\n 'dodgerblue',\n 'darkorchid',\n 'crimson'\n];\n\n/**\n * Currently only WebKit-based Web Inspectors, Firefox >= v31,\n * and the Firebug extension (any Firefox version) are known\n * to support \"%c\" CSS customizations.\n *\n * TODO: add a `localStorage` variable to explicitly enable/disable colors\n */\n\nfunction useColors() {\n // NB: In an Electron preload script, document will be defined but not fully\n // initialized. Since we know we're in Chrome, we'll just detect this case\n // explicitly\n if (typeof window !== 'undefined' && window.process && window.process.type === 'renderer') {\n return true;\n }\n\n // is webkit? http://stackoverflow.com/a/16459606/376773\n // document is undefined in react-native: https://github.com/facebook/react-native/pull/1632\n return (typeof document !== 'undefined' && document.documentElement && document.documentElement.style && document.documentElement.style.WebkitAppearance) ||\n // is firebug? http://stackoverflow.com/a/398120/376773\n (typeof window !== 'undefined' && window.console && (window.console.firebug || (window.console.exception && window.console.table))) ||\n // is firefox >= v31?\n // https://developer.mozilla.org/en-US/docs/Tools/Web_Console#Styling_messages\n (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/firefox\\/(\\d+)/) && parseInt(RegExp.$1, 10) >= 31) ||\n // double check webkit in userAgent just in case we are in a worker\n (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/applewebkit\\/(\\d+)/));\n}\n\n/**\n * Map %j to `JSON.stringify()`, since no Web Inspectors do that by default.\n */\n\nexports.formatters.j = function(v) {\n try {\n return JSON.stringify(v);\n } catch (err) {\n return '[UnexpectedJSONParseError]: ' + err.message;\n }\n};\n\n\n/**\n * Colorize log arguments if enabled.\n *\n * @api public\n */\n\nfunction formatArgs(args) {\n var useColors = this.useColors;\n\n args[0] = (useColors ? '%c' : '')\n + this.namespace\n + (useColors ? ' %c' : ' ')\n + args[0]\n + (useColors ? '%c ' : ' ')\n + '+' + exports.humanize(this.diff);\n\n if (!useColors) return;\n\n var c = 'color: ' + this.color;\n args.splice(1, 0, c, 'color: inherit')\n\n // the final \"%c\" is somewhat tricky, because there could be other\n // arguments passed either before or after the %c, so we need to\n // figure out the correct index to insert the CSS into\n var index = 0;\n var lastC = 0;\n args[0].replace(/%[a-zA-Z%]/g, function(match) {\n if ('%%' === match) return;\n index++;\n if ('%c' === match) {\n // we only are interested in the *last* %c\n // (the user may have provided their own)\n lastC = index;\n }\n });\n\n args.splice(lastC, 0, c);\n}\n\n/**\n * Invokes `console.log()` when available.\n * No-op when `console.log` is not a \"function\".\n *\n * @api public\n */\n\nfunction log() {\n // this hackery is required for IE8/9, where\n // the `console.log` function doesn't have 'apply'\n return 'object' === typeof console\n && console.log\n && Function.prototype.apply.call(console.log, console, arguments);\n}\n\n/**\n * Save `namespaces`.\n *\n * @param {String} namespaces\n * @api private\n */\n\nfunction save(namespaces) {\n try {\n if (null == namespaces) {\n exports.storage.removeItem('debug');\n } else {\n exports.storage.debug = namespaces;\n }\n } catch(e) {}\n}\n\n/**\n * Load `namespaces`.\n *\n * @return {String} returns the previously persisted debug modes\n * @api private\n */\n\nfunction load() {\n var r;\n try {\n r = exports.storage.debug;\n } catch(e) {}\n\n // If debug isn't set in LS, and we're in Electron, try to load $DEBUG\n if (!r && typeof process !== 'undefined' && 'env' in process) {\n r = process.env.DEBUG;\n }\n\n return r;\n}\n\n/**\n * Enable namespaces listed in `localStorage.debug` initially.\n */\n\nexports.enable(load());\n\n/**\n * Localstorage attempts to return the localstorage.\n *\n * This is necessary because safari throws\n * when a user disables cookies/localstorage\n * and you attempt to access it.\n *\n * @return {LocalStorage}\n * @api private\n */\n\nfunction localstorage() {\n try {\n return window.localStorage;\n } catch (e) {}\n}\n","/*!\n * destroy\n * Copyright(c) 2014 Jonathan Ong\n * Copyright(c) 2015-2022 Douglas Christopher Wilson\n * MIT Licensed\n */\n\n'use strict'\n\n/**\n * Module dependencies.\n * @private\n */\n\nvar EventEmitter = require('events').EventEmitter\nvar ReadStream = require('fs').ReadStream\nvar Stream = require('stream')\nvar Zlib = require('zlib')\n\n/**\n * Module exports.\n * @public\n */\n\nmodule.exports = destroy\n\n/**\n * Destroy the given stream, and optionally suppress any future `error` events.\n *\n * @param {object} stream\n * @param {boolean} suppress\n * @public\n */\n\nfunction destroy (stream, suppress) {\n if (isFsReadStream(stream)) {\n destroyReadStream(stream)\n } else if (isZlibStream(stream)) {\n destroyZlibStream(stream)\n } else if (hasDestroy(stream)) {\n stream.destroy()\n }\n\n if (isEventEmitter(stream) && suppress) {\n stream.removeAllListeners('error')\n stream.addListener('error', noop)\n }\n\n return stream\n}\n\n/**\n * Destroy a ReadStream.\n *\n * @param {object} stream\n * @private\n */\n\nfunction destroyReadStream (stream) {\n stream.destroy()\n\n if (typeof stream.close === 'function') {\n // node.js core bug work-around\n stream.on('open', onOpenClose)\n }\n}\n\n/**\n * Close a Zlib stream.\n *\n * Zlib streams below Node.js 4.5.5 have a buggy implementation\n * of .close() when zlib encountered an error.\n *\n * @param {object} stream\n * @private\n */\n\nfunction closeZlibStream (stream) {\n if (stream._hadError === true) {\n var prop = stream._binding === null\n ? '_binding'\n : '_handle'\n\n stream[prop] = {\n close: function () { this[prop] = null }\n }\n }\n\n stream.close()\n}\n\n/**\n * Destroy a Zlib stream.\n *\n * Zlib streams don't have a destroy function in Node.js 6. On top of that\n * simply calling destroy on a zlib stream in Node.js 8+ will result in a\n * memory leak. So until that is fixed, we need to call both close AND destroy.\n *\n * PR to fix memory leak: https://github.com/nodejs/node/pull/23734\n *\n * In Node.js 6+8, it's important that destroy is called before close as the\n * stream would otherwise emit the error 'zlib binding closed'.\n *\n * @param {object} stream\n * @private\n */\n\nfunction destroyZlibStream (stream) {\n if (typeof stream.destroy === 'function') {\n // node.js core bug work-around\n // istanbul ignore if: node.js 0.8\n if (stream._binding) {\n // node.js < 0.10.0\n stream.destroy()\n if (stream._processing) {\n stream._needDrain = true\n stream.once('drain', onDrainClearBinding)\n } else {\n stream._binding.clear()\n }\n } else if (stream._destroy && stream._destroy !== Stream.Transform.prototype._destroy) {\n // node.js >= 12, ^11.1.0, ^10.15.1\n stream.destroy()\n } else if (stream._destroy && typeof stream.close === 'function') {\n // node.js 7, 8\n stream.destroyed = true\n stream.close()\n } else {\n // fallback\n // istanbul ignore next\n stream.destroy()\n }\n } else if (typeof stream.close === 'function') {\n // node.js < 8 fallback\n closeZlibStream(stream)\n }\n}\n\n/**\n * Determine if stream has destroy.\n * @private\n */\n\nfunction hasDestroy (stream) {\n return stream instanceof Stream &&\n typeof stream.destroy === 'function'\n}\n\n/**\n * Determine if val is EventEmitter.\n * @private\n */\n\nfunction isEventEmitter (val) {\n return val instanceof EventEmitter\n}\n\n/**\n * Determine if stream is fs.ReadStream stream.\n * @private\n */\n\nfunction isFsReadStream (stream) {\n return stream instanceof ReadStream\n}\n\n/**\n * Determine if stream is Zlib stream.\n * @private\n */\n\nfunction isZlibStream (stream) {\n return stream instanceof Zlib.Gzip ||\n stream instanceof Zlib.Gunzip ||\n stream instanceof Zlib.Deflate ||\n stream instanceof Zlib.DeflateRaw ||\n stream instanceof Zlib.Inflate ||\n stream instanceof Zlib.InflateRaw ||\n stream instanceof Zlib.Unzip\n}\n\n/**\n * No-op function.\n * @private\n */\n\nfunction noop () {}\n\n/**\n * On drain handler to clear binding.\n * @private\n */\n\n// istanbul ignore next: node.js 0.8\nfunction onDrainClearBinding () {\n this._binding.clear()\n}\n\n/**\n * On open handler to close stream.\n * @private\n */\n\nfunction onOpenClose () {\n if (typeof this.fd === 'number') {\n // actually close down the fd\n this.close()\n }\n}\n","/* eslint-disable node/no-deprecated-api */\n\n'use strict'\n\nvar buffer = require('buffer')\nvar Buffer = buffer.Buffer\n\nvar safer = {}\n\nvar key\n\nfor (key in buffer) {\n if (!buffer.hasOwnProperty(key)) continue\n if (key === 'SlowBuffer' || key === 'Buffer') continue\n safer[key] = buffer[key]\n}\n\nvar Safer = safer.Buffer = {}\nfor (key in Buffer) {\n if (!Buffer.hasOwnProperty(key)) continue\n if (key === 'allocUnsafe' || key === 'allocUnsafeSlow') continue\n Safer[key] = Buffer[key]\n}\n\nsafer.Buffer.prototype = Buffer.prototype\n\nif (!Safer.from || Safer.from === Uint8Array.from) {\n Safer.from = function (value, encodingOrOffset, length) {\n if (typeof value === 'number') {\n throw new TypeError('The \"value\" argument must not be of type number. Received type ' + typeof value)\n }\n if (value && typeof value.length === 'undefined') {\n throw new TypeError('The first argument must be one of type string, Buffer, ArrayBuffer, Array, or Array-like Object. Received type ' + typeof value)\n }\n return Buffer(value, encodingOrOffset, length)\n }\n}\n\nif (!Safer.alloc) {\n Safer.alloc = function (size, fill, encoding) {\n if (typeof size !== 'number') {\n throw new TypeError('The \"size\" argument must be of type number. Received type ' + typeof size)\n }\n if (size < 0 || size >= 2 * (1 << 30)) {\n throw new RangeError('The value \"' + size + '\" is invalid for option \"size\"')\n }\n var buf = Buffer(size)\n if (!fill || fill.length === 0) {\n buf.fill(0)\n } else if (typeof encoding === 'string') {\n buf.fill(fill, encoding)\n } else {\n buf.fill(fill)\n }\n return buf\n }\n}\n\nif (!safer.kStringMaxLength) {\n try {\n safer.kStringMaxLength = process.binding('buffer').kStringMaxLength\n } catch (e) {\n // we can't determine kStringMaxLength in environments where process.binding\n // is unsupported, so let's not set it\n }\n}\n\nif (!safer.constants) {\n safer.constants = {\n MAX_LENGTH: safer.kMaxLength\n }\n if (safer.kStringMaxLength) {\n safer.constants.MAX_STRING_LENGTH = safer.kStringMaxLength\n }\n}\n\nmodule.exports = safer\n","\"use strict\";\n\nvar BOMChar = '\\uFEFF';\n\nexports.PrependBOM = PrependBOMWrapper\nfunction PrependBOMWrapper(encoder, options) {\n this.encoder = encoder;\n this.addBOM = true;\n}\n\nPrependBOMWrapper.prototype.write = function(str) {\n if (this.addBOM) {\n str = BOMChar + str;\n this.addBOM = false;\n }\n\n return this.encoder.write(str);\n}\n\nPrependBOMWrapper.prototype.end = function() {\n return this.encoder.end();\n}\n\n\n//------------------------------------------------------------------------------\n\nexports.StripBOM = StripBOMWrapper;\nfunction StripBOMWrapper(decoder, options) {\n this.decoder = decoder;\n this.pass = false;\n this.options = options || {};\n}\n\nStripBOMWrapper.prototype.write = function(buf) {\n var res = this.decoder.write(buf);\n if (this.pass || !res)\n return res;\n\n if (res[0] === BOMChar) {\n res = res.slice(1);\n if (typeof this.options.stripBOM === 'function')\n this.options.stripBOM();\n }\n\n this.pass = true;\n return res;\n}\n\nStripBOMWrapper.prototype.end = function() {\n return this.decoder.end();\n}\n\n","\"use strict\";\nvar Buffer = require(\"safer-buffer\").Buffer;\n\n// Export Node.js internal encodings.\n\nmodule.exports = {\n // Encodings\n utf8: { type: \"_internal\", bomAware: true},\n cesu8: { type: \"_internal\", bomAware: true},\n unicode11utf8: \"utf8\",\n\n ucs2: { type: \"_internal\", bomAware: true},\n utf16le: \"ucs2\",\n\n binary: { type: \"_internal\" },\n base64: { type: \"_internal\" },\n hex: { type: \"_internal\" },\n\n // Codec.\n _internal: InternalCodec,\n};\n\n//------------------------------------------------------------------------------\n\nfunction InternalCodec(codecOptions, iconv) {\n this.enc = codecOptions.encodingName;\n this.bomAware = codecOptions.bomAware;\n\n if (this.enc === \"base64\")\n this.encoder = InternalEncoderBase64;\n else if (this.enc === \"cesu8\") {\n this.enc = \"utf8\"; // Use utf8 for decoding.\n this.encoder = InternalEncoderCesu8;\n\n // Add decoder for versions of Node not supporting CESU-8\n if (Buffer.from('eda0bdedb2a9', 'hex').toString() !== '💩') {\n this.decoder = InternalDecoderCesu8;\n this.defaultCharUnicode = iconv.defaultCharUnicode;\n }\n }\n}\n\nInternalCodec.prototype.encoder = InternalEncoder;\nInternalCodec.prototype.decoder = InternalDecoder;\n\n//------------------------------------------------------------------------------\n\n// We use node.js internal decoder. Its signature is the same as ours.\nvar StringDecoder = require('string_decoder').StringDecoder;\n\nif (!StringDecoder.prototype.end) // Node v0.8 doesn't have this method.\n StringDecoder.prototype.end = function() {};\n\n\nfunction InternalDecoder(options, codec) {\n StringDecoder.call(this, codec.enc);\n}\n\nInternalDecoder.prototype = StringDecoder.prototype;\n\n\n//------------------------------------------------------------------------------\n// Encoder is mostly trivial\n\nfunction InternalEncoder(options, codec) {\n this.enc = codec.enc;\n}\n\nInternalEncoder.prototype.write = function(str) {\n return Buffer.from(str, this.enc);\n}\n\nInternalEncoder.prototype.end = function() {\n}\n\n\n//------------------------------------------------------------------------------\n// Except base64 encoder, which must keep its state.\n\nfunction InternalEncoderBase64(options, codec) {\n this.prevStr = '';\n}\n\nInternalEncoderBase64.prototype.write = function(str) {\n str = this.prevStr + str;\n var completeQuads = str.length - (str.length % 4);\n this.prevStr = str.slice(completeQuads);\n str = str.slice(0, completeQuads);\n\n return Buffer.from(str, \"base64\");\n}\n\nInternalEncoderBase64.prototype.end = function() {\n return Buffer.from(this.prevStr, \"base64\");\n}\n\n\n//------------------------------------------------------------------------------\n// CESU-8 encoder is also special.\n\nfunction InternalEncoderCesu8(options, codec) {\n}\n\nInternalEncoderCesu8.prototype.write = function(str) {\n var buf = Buffer.alloc(str.length * 3), bufIdx = 0;\n for (var i = 0; i < str.length; i++) {\n var charCode = str.charCodeAt(i);\n // Naive implementation, but it works because CESU-8 is especially easy\n // to convert from UTF-16 (which all JS strings are encoded in).\n if (charCode < 0x80)\n buf[bufIdx++] = charCode;\n else if (charCode < 0x800) {\n buf[bufIdx++] = 0xC0 + (charCode >>> 6);\n buf[bufIdx++] = 0x80 + (charCode & 0x3f);\n }\n else { // charCode will always be < 0x10000 in javascript.\n buf[bufIdx++] = 0xE0 + (charCode >>> 12);\n buf[bufIdx++] = 0x80 + ((charCode >>> 6) & 0x3f);\n buf[bufIdx++] = 0x80 + (charCode & 0x3f);\n }\n }\n return buf.slice(0, bufIdx);\n}\n\nInternalEncoderCesu8.prototype.end = function() {\n}\n\n//------------------------------------------------------------------------------\n// CESU-8 decoder is not implemented in Node v4.0+\n\nfunction InternalDecoderCesu8(options, codec) {\n this.acc = 0;\n this.contBytes = 0;\n this.accBytes = 0;\n this.defaultCharUnicode = codec.defaultCharUnicode;\n}\n\nInternalDecoderCesu8.prototype.write = function(buf) {\n var acc = this.acc, contBytes = this.contBytes, accBytes = this.accBytes, \n res = '';\n for (var i = 0; i < buf.length; i++) {\n var curByte = buf[i];\n if ((curByte & 0xC0) !== 0x80) { // Leading byte\n if (contBytes > 0) { // Previous code is invalid\n res += this.defaultCharUnicode;\n contBytes = 0;\n }\n\n if (curByte < 0x80) { // Single-byte code\n res += String.fromCharCode(curByte);\n } else if (curByte < 0xE0) { // Two-byte code\n acc = curByte & 0x1F;\n contBytes = 1; accBytes = 1;\n } else if (curByte < 0xF0) { // Three-byte code\n acc = curByte & 0x0F;\n contBytes = 2; accBytes = 1;\n } else { // Four or more are not supported for CESU-8.\n res += this.defaultCharUnicode;\n }\n } else { // Continuation byte\n if (contBytes > 0) { // We're waiting for it.\n acc = (acc << 6) | (curByte & 0x3f);\n contBytes--; accBytes++;\n if (contBytes === 0) {\n // Check for overlong encoding, but support Modified UTF-8 (encoding NULL as C0 80)\n if (accBytes === 2 && acc < 0x80 && acc > 0)\n res += this.defaultCharUnicode;\n else if (accBytes === 3 && acc < 0x800)\n res += this.defaultCharUnicode;\n else\n // Actually add character.\n res += String.fromCharCode(acc);\n }\n } else { // Unexpected continuation byte\n res += this.defaultCharUnicode;\n }\n }\n }\n this.acc = acc; this.contBytes = contBytes; this.accBytes = accBytes;\n return res;\n}\n\nInternalDecoderCesu8.prototype.end = function() {\n var res = 0;\n if (this.contBytes > 0)\n res += this.defaultCharUnicode;\n return res;\n}\n","\"use strict\";\nvar Buffer = require(\"safer-buffer\").Buffer;\n\n// Note: UTF16-LE (or UCS2) codec is Node.js native. See encodings/internal.js\n\n// == UTF16-BE codec. ==========================================================\n\nexports.utf16be = Utf16BECodec;\nfunction Utf16BECodec() {\n}\n\nUtf16BECodec.prototype.encoder = Utf16BEEncoder;\nUtf16BECodec.prototype.decoder = Utf16BEDecoder;\nUtf16BECodec.prototype.bomAware = true;\n\n\n// -- Encoding\n\nfunction Utf16BEEncoder() {\n}\n\nUtf16BEEncoder.prototype.write = function(str) {\n var buf = Buffer.from(str, 'ucs2');\n for (var i = 0; i < buf.length; i += 2) {\n var tmp = buf[i]; buf[i] = buf[i+1]; buf[i+1] = tmp;\n }\n return buf;\n}\n\nUtf16BEEncoder.prototype.end = function() {\n}\n\n\n// -- Decoding\n\nfunction Utf16BEDecoder() {\n this.overflowByte = -1;\n}\n\nUtf16BEDecoder.prototype.write = function(buf) {\n if (buf.length == 0)\n return '';\n\n var buf2 = Buffer.alloc(buf.length + 1),\n i = 0, j = 0;\n\n if (this.overflowByte !== -1) {\n buf2[0] = buf[0];\n buf2[1] = this.overflowByte;\n i = 1; j = 2;\n }\n\n for (; i < buf.length-1; i += 2, j+= 2) {\n buf2[j] = buf[i+1];\n buf2[j+1] = buf[i];\n }\n\n this.overflowByte = (i == buf.length-1) ? buf[buf.length-1] : -1;\n\n return buf2.slice(0, j).toString('ucs2');\n}\n\nUtf16BEDecoder.prototype.end = function() {\n}\n\n\n// == UTF-16 codec =============================================================\n// Decoder chooses automatically from UTF-16LE and UTF-16BE using BOM and space-based heuristic.\n// Defaults to UTF-16LE, as it's prevalent and default in Node.\n// http://en.wikipedia.org/wiki/UTF-16 and http://encoding.spec.whatwg.org/#utf-16le\n// Decoder default can be changed: iconv.decode(buf, 'utf16', {defaultEncoding: 'utf-16be'});\n\n// Encoder uses UTF-16LE and prepends BOM (which can be overridden with addBOM: false).\n\nexports.utf16 = Utf16Codec;\nfunction Utf16Codec(codecOptions, iconv) {\n this.iconv = iconv;\n}\n\nUtf16Codec.prototype.encoder = Utf16Encoder;\nUtf16Codec.prototype.decoder = Utf16Decoder;\n\n\n// -- Encoding (pass-through)\n\nfunction Utf16Encoder(options, codec) {\n options = options || {};\n if (options.addBOM === undefined)\n options.addBOM = true;\n this.encoder = codec.iconv.getEncoder('utf-16le', options);\n}\n\nUtf16Encoder.prototype.write = function(str) {\n return this.encoder.write(str);\n}\n\nUtf16Encoder.prototype.end = function() {\n return this.encoder.end();\n}\n\n\n// -- Decoding\n\nfunction Utf16Decoder(options, codec) {\n this.decoder = null;\n this.initialBytes = [];\n this.initialBytesLen = 0;\n\n this.options = options || {};\n this.iconv = codec.iconv;\n}\n\nUtf16Decoder.prototype.write = function(buf) {\n if (!this.decoder) {\n // Codec is not chosen yet. Accumulate initial bytes.\n this.initialBytes.push(buf);\n this.initialBytesLen += buf.length;\n \n if (this.initialBytesLen < 16) // We need more bytes to use space heuristic (see below)\n return '';\n\n // We have enough bytes -> detect endianness.\n var buf = Buffer.concat(this.initialBytes),\n encoding = detectEncoding(buf, this.options.defaultEncoding);\n this.decoder = this.iconv.getDecoder(encoding, this.options);\n this.initialBytes.length = this.initialBytesLen = 0;\n }\n\n return this.decoder.write(buf);\n}\n\nUtf16Decoder.prototype.end = function() {\n if (!this.decoder) {\n var buf = Buffer.concat(this.initialBytes),\n encoding = detectEncoding(buf, this.options.defaultEncoding);\n this.decoder = this.iconv.getDecoder(encoding, this.options);\n\n var res = this.decoder.write(buf),\n trail = this.decoder.end();\n\n return trail ? (res + trail) : res;\n }\n return this.decoder.end();\n}\n\nfunction detectEncoding(buf, defaultEncoding) {\n var enc = defaultEncoding || 'utf-16le';\n\n if (buf.length >= 2) {\n // Check BOM.\n if (buf[0] == 0xFE && buf[1] == 0xFF) // UTF-16BE BOM\n enc = 'utf-16be';\n else if (buf[0] == 0xFF && buf[1] == 0xFE) // UTF-16LE BOM\n enc = 'utf-16le';\n else {\n // No BOM found. Try to deduce encoding from initial content.\n // Most of the time, the content has ASCII chars (U+00**), but the opposite (U+**00) is uncommon.\n // So, we count ASCII as if it was LE or BE, and decide from that.\n var asciiCharsLE = 0, asciiCharsBE = 0, // Counts of chars in both positions\n _len = Math.min(buf.length - (buf.length % 2), 64); // Len is always even.\n\n for (var i = 0; i < _len; i += 2) {\n if (buf[i] === 0 && buf[i+1] !== 0) asciiCharsBE++;\n if (buf[i] !== 0 && buf[i+1] === 0) asciiCharsLE++;\n }\n\n if (asciiCharsBE > asciiCharsLE)\n enc = 'utf-16be';\n else if (asciiCharsBE < asciiCharsLE)\n enc = 'utf-16le';\n }\n }\n\n return enc;\n}\n\n\n","\"use strict\";\nvar Buffer = require(\"safer-buffer\").Buffer;\n\n// UTF-7 codec, according to https://tools.ietf.org/html/rfc2152\n// See also below a UTF-7-IMAP codec, according to http://tools.ietf.org/html/rfc3501#section-5.1.3\n\nexports.utf7 = Utf7Codec;\nexports.unicode11utf7 = 'utf7'; // Alias UNICODE-1-1-UTF-7\nfunction Utf7Codec(codecOptions, iconv) {\n this.iconv = iconv;\n};\n\nUtf7Codec.prototype.encoder = Utf7Encoder;\nUtf7Codec.prototype.decoder = Utf7Decoder;\nUtf7Codec.prototype.bomAware = true;\n\n\n// -- Encoding\n\nvar nonDirectChars = /[^A-Za-z0-9'\\(\\),-\\.\\/:\\? \\n\\r\\t]+/g;\n\nfunction Utf7Encoder(options, codec) {\n this.iconv = codec.iconv;\n}\n\nUtf7Encoder.prototype.write = function(str) {\n // Naive implementation.\n // Non-direct chars are encoded as \"+-\"; single \"+\" char is encoded as \"+-\".\n return Buffer.from(str.replace(nonDirectChars, function(chunk) {\n return \"+\" + (chunk === '+' ? '' : \n this.iconv.encode(chunk, 'utf16-be').toString('base64').replace(/=+$/, '')) \n + \"-\";\n }.bind(this)));\n}\n\nUtf7Encoder.prototype.end = function() {\n}\n\n\n// -- Decoding\n\nfunction Utf7Decoder(options, codec) {\n this.iconv = codec.iconv;\n this.inBase64 = false;\n this.base64Accum = '';\n}\n\nvar base64Regex = /[A-Za-z0-9\\/+]/;\nvar base64Chars = [];\nfor (var i = 0; i < 256; i++)\n base64Chars[i] = base64Regex.test(String.fromCharCode(i));\n\nvar plusChar = '+'.charCodeAt(0), \n minusChar = '-'.charCodeAt(0),\n andChar = '&'.charCodeAt(0);\n\nUtf7Decoder.prototype.write = function(buf) {\n var res = \"\", lastI = 0,\n inBase64 = this.inBase64,\n base64Accum = this.base64Accum;\n\n // The decoder is more involved as we must handle chunks in stream.\n\n for (var i = 0; i < buf.length; i++) {\n if (!inBase64) { // We're in direct mode.\n // Write direct chars until '+'\n if (buf[i] == plusChar) {\n res += this.iconv.decode(buf.slice(lastI, i), \"ascii\"); // Write direct chars.\n lastI = i+1;\n inBase64 = true;\n }\n } else { // We decode base64.\n if (!base64Chars[buf[i]]) { // Base64 ended.\n if (i == lastI && buf[i] == minusChar) {// \"+-\" -> \"+\"\n res += \"+\";\n } else {\n var b64str = base64Accum + buf.slice(lastI, i).toString();\n res += this.iconv.decode(Buffer.from(b64str, 'base64'), \"utf16-be\");\n }\n\n if (buf[i] != minusChar) // Minus is absorbed after base64.\n i--;\n\n lastI = i+1;\n inBase64 = false;\n base64Accum = '';\n }\n }\n }\n\n if (!inBase64) {\n res += this.iconv.decode(buf.slice(lastI), \"ascii\"); // Write direct chars.\n } else {\n var b64str = base64Accum + buf.slice(lastI).toString();\n\n var canBeDecoded = b64str.length - (b64str.length % 8); // Minimal chunk: 2 quads -> 2x3 bytes -> 3 chars.\n base64Accum = b64str.slice(canBeDecoded); // The rest will be decoded in future.\n b64str = b64str.slice(0, canBeDecoded);\n\n res += this.iconv.decode(Buffer.from(b64str, 'base64'), \"utf16-be\");\n }\n\n this.inBase64 = inBase64;\n this.base64Accum = base64Accum;\n\n return res;\n}\n\nUtf7Decoder.prototype.end = function() {\n var res = \"\";\n if (this.inBase64 && this.base64Accum.length > 0)\n res = this.iconv.decode(Buffer.from(this.base64Accum, 'base64'), \"utf16-be\");\n\n this.inBase64 = false;\n this.base64Accum = '';\n return res;\n}\n\n\n// UTF-7-IMAP codec.\n// RFC3501 Sec. 5.1.3 Modified UTF-7 (http://tools.ietf.org/html/rfc3501#section-5.1.3)\n// Differences:\n// * Base64 part is started by \"&\" instead of \"+\"\n// * Direct characters are 0x20-0x7E, except \"&\" (0x26)\n// * In Base64, \",\" is used instead of \"/\"\n// * Base64 must not be used to represent direct characters.\n// * No implicit shift back from Base64 (should always end with '-')\n// * String must end in non-shifted position.\n// * \"-&\" while in base64 is not allowed.\n\n\nexports.utf7imap = Utf7IMAPCodec;\nfunction Utf7IMAPCodec(codecOptions, iconv) {\n this.iconv = iconv;\n};\n\nUtf7IMAPCodec.prototype.encoder = Utf7IMAPEncoder;\nUtf7IMAPCodec.prototype.decoder = Utf7IMAPDecoder;\nUtf7IMAPCodec.prototype.bomAware = true;\n\n\n// -- Encoding\n\nfunction Utf7IMAPEncoder(options, codec) {\n this.iconv = codec.iconv;\n this.inBase64 = false;\n this.base64Accum = Buffer.alloc(6);\n this.base64AccumIdx = 0;\n}\n\nUtf7IMAPEncoder.prototype.write = function(str) {\n var inBase64 = this.inBase64,\n base64Accum = this.base64Accum,\n base64AccumIdx = this.base64AccumIdx,\n buf = Buffer.alloc(str.length*5 + 10), bufIdx = 0;\n\n for (var i = 0; i < str.length; i++) {\n var uChar = str.charCodeAt(i);\n if (0x20 <= uChar && uChar <= 0x7E) { // Direct character or '&'.\n if (inBase64) {\n if (base64AccumIdx > 0) {\n bufIdx += buf.write(base64Accum.slice(0, base64AccumIdx).toString('base64').replace(/\\//g, ',').replace(/=+$/, ''), bufIdx);\n base64AccumIdx = 0;\n }\n\n buf[bufIdx++] = minusChar; // Write '-', then go to direct mode.\n inBase64 = false;\n }\n\n if (!inBase64) {\n buf[bufIdx++] = uChar; // Write direct character\n\n if (uChar === andChar) // Ampersand -> '&-'\n buf[bufIdx++] = minusChar;\n }\n\n } else { // Non-direct character\n if (!inBase64) {\n buf[bufIdx++] = andChar; // Write '&', then go to base64 mode.\n inBase64 = true;\n }\n if (inBase64) {\n base64Accum[base64AccumIdx++] = uChar >> 8;\n base64Accum[base64AccumIdx++] = uChar & 0xFF;\n\n if (base64AccumIdx == base64Accum.length) {\n bufIdx += buf.write(base64Accum.toString('base64').replace(/\\//g, ','), bufIdx);\n base64AccumIdx = 0;\n }\n }\n }\n }\n\n this.inBase64 = inBase64;\n this.base64AccumIdx = base64AccumIdx;\n\n return buf.slice(0, bufIdx);\n}\n\nUtf7IMAPEncoder.prototype.end = function() {\n var buf = Buffer.alloc(10), bufIdx = 0;\n if (this.inBase64) {\n if (this.base64AccumIdx > 0) {\n bufIdx += buf.write(this.base64Accum.slice(0, this.base64AccumIdx).toString('base64').replace(/\\//g, ',').replace(/=+$/, ''), bufIdx);\n this.base64AccumIdx = 0;\n }\n\n buf[bufIdx++] = minusChar; // Write '-', then go to direct mode.\n this.inBase64 = false;\n }\n\n return buf.slice(0, bufIdx);\n}\n\n\n// -- Decoding\n\nfunction Utf7IMAPDecoder(options, codec) {\n this.iconv = codec.iconv;\n this.inBase64 = false;\n this.base64Accum = '';\n}\n\nvar base64IMAPChars = base64Chars.slice();\nbase64IMAPChars[','.charCodeAt(0)] = true;\n\nUtf7IMAPDecoder.prototype.write = function(buf) {\n var res = \"\", lastI = 0,\n inBase64 = this.inBase64,\n base64Accum = this.base64Accum;\n\n // The decoder is more involved as we must handle chunks in stream.\n // It is forgiving, closer to standard UTF-7 (for example, '-' is optional at the end).\n\n for (var i = 0; i < buf.length; i++) {\n if (!inBase64) { // We're in direct mode.\n // Write direct chars until '&'\n if (buf[i] == andChar) {\n res += this.iconv.decode(buf.slice(lastI, i), \"ascii\"); // Write direct chars.\n lastI = i+1;\n inBase64 = true;\n }\n } else { // We decode base64.\n if (!base64IMAPChars[buf[i]]) { // Base64 ended.\n if (i == lastI && buf[i] == minusChar) { // \"&-\" -> \"&\"\n res += \"&\";\n } else {\n var b64str = base64Accum + buf.slice(lastI, i).toString().replace(/,/g, '/');\n res += this.iconv.decode(Buffer.from(b64str, 'base64'), \"utf16-be\");\n }\n\n if (buf[i] != minusChar) // Minus may be absorbed after base64.\n i--;\n\n lastI = i+1;\n inBase64 = false;\n base64Accum = '';\n }\n }\n }\n\n if (!inBase64) {\n res += this.iconv.decode(buf.slice(lastI), \"ascii\"); // Write direct chars.\n } else {\n var b64str = base64Accum + buf.slice(lastI).toString().replace(/,/g, '/');\n\n var canBeDecoded = b64str.length - (b64str.length % 8); // Minimal chunk: 2 quads -> 2x3 bytes -> 3 chars.\n base64Accum = b64str.slice(canBeDecoded); // The rest will be decoded in future.\n b64str = b64str.slice(0, canBeDecoded);\n\n res += this.iconv.decode(Buffer.from(b64str, 'base64'), \"utf16-be\");\n }\n\n this.inBase64 = inBase64;\n this.base64Accum = base64Accum;\n\n return res;\n}\n\nUtf7IMAPDecoder.prototype.end = function() {\n var res = \"\";\n if (this.inBase64 && this.base64Accum.length > 0)\n res = this.iconv.decode(Buffer.from(this.base64Accum, 'base64'), \"utf16-be\");\n\n this.inBase64 = false;\n this.base64Accum = '';\n return res;\n}\n\n\n","\"use strict\";\nvar Buffer = require(\"safer-buffer\").Buffer;\n\n// Single-byte codec. Needs a 'chars' string parameter that contains 256 or 128 chars that\n// correspond to encoded bytes (if 128 - then lower half is ASCII). \n\nexports._sbcs = SBCSCodec;\nfunction SBCSCodec(codecOptions, iconv) {\n if (!codecOptions)\n throw new Error(\"SBCS codec is called without the data.\")\n \n // Prepare char buffer for decoding.\n if (!codecOptions.chars || (codecOptions.chars.length !== 128 && codecOptions.chars.length !== 256))\n throw new Error(\"Encoding '\"+codecOptions.type+\"' has incorrect 'chars' (must be of len 128 or 256)\");\n \n if (codecOptions.chars.length === 128) {\n var asciiString = \"\";\n for (var i = 0; i < 128; i++)\n asciiString += String.fromCharCode(i);\n codecOptions.chars = asciiString + codecOptions.chars;\n }\n\n this.decodeBuf = Buffer.from(codecOptions.chars, 'ucs2');\n \n // Encoding buffer.\n var encodeBuf = Buffer.alloc(65536, iconv.defaultCharSingleByte.charCodeAt(0));\n\n for (var i = 0; i < codecOptions.chars.length; i++)\n encodeBuf[codecOptions.chars.charCodeAt(i)] = i;\n\n this.encodeBuf = encodeBuf;\n}\n\nSBCSCodec.prototype.encoder = SBCSEncoder;\nSBCSCodec.prototype.decoder = SBCSDecoder;\n\n\nfunction SBCSEncoder(options, codec) {\n this.encodeBuf = codec.encodeBuf;\n}\n\nSBCSEncoder.prototype.write = function(str) {\n var buf = Buffer.alloc(str.length);\n for (var i = 0; i < str.length; i++)\n buf[i] = this.encodeBuf[str.charCodeAt(i)];\n \n return buf;\n}\n\nSBCSEncoder.prototype.end = function() {\n}\n\n\nfunction SBCSDecoder(options, codec) {\n this.decodeBuf = codec.decodeBuf;\n}\n\nSBCSDecoder.prototype.write = function(buf) {\n // Strings are immutable in JS -> we use ucs2 buffer to speed up computations.\n var decodeBuf = this.decodeBuf;\n var newBuf = Buffer.alloc(buf.length*2);\n var idx1 = 0, idx2 = 0;\n for (var i = 0; i < buf.length; i++) {\n idx1 = buf[i]*2; idx2 = i*2;\n newBuf[idx2] = decodeBuf[idx1];\n newBuf[idx2+1] = decodeBuf[idx1+1];\n }\n return newBuf.toString('ucs2');\n}\n\nSBCSDecoder.prototype.end = function() {\n}\n","\"use strict\";\n\n// Manually added data to be used by sbcs codec in addition to generated one.\n\nmodule.exports = {\n // Not supported by iconv, not sure why.\n \"10029\": \"maccenteuro\",\n \"maccenteuro\": {\n \"type\": \"_sbcs\",\n \"chars\": \"ÄĀāÉĄÖÜáąČäčĆć鏟ĎíďĒēĖóėôöõúĚěü†°Ę£§•¶ß®©™ę¨≠ģĮįĪ≤≥īĶ∂∑łĻļĽľĹĺŅņѬ√ńŇ∆«»… ňŐÕőŌ–—“”‘’÷◊ōŔŕŘ‹›řŖŗŠ‚„šŚśÁŤťÍŽžŪÓÔūŮÚůŰűŲųÝýķŻŁżĢˇ\"\n },\n\n \"808\": \"cp808\",\n \"ibm808\": \"cp808\",\n \"cp808\": {\n \"type\": \"_sbcs\",\n \"chars\": \"АБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмноп░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀рстуфхцчшщъыьэюяЁёЄєЇїЎў°∙·√№€■ \"\n },\n\n \"mik\": {\n \"type\": \"_sbcs\",\n \"chars\": \"АБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыьэюя└┴┬├─┼╣║╚╔╩╦╠═╬┐░▒▓│┤№§╗╝┘┌█▄▌▐▀αßΓπΣσµτΦΘΩδ∞φε∩≡±≥≤⌠⌡÷≈°∙·√ⁿ²■ \"\n },\n\n // Aliases of generated encodings.\n \"ascii8bit\": \"ascii\",\n \"usascii\": \"ascii\",\n \"ansix34\": \"ascii\",\n \"ansix341968\": \"ascii\",\n \"ansix341986\": \"ascii\",\n \"csascii\": \"ascii\",\n \"cp367\": \"ascii\",\n \"ibm367\": \"ascii\",\n \"isoir6\": \"ascii\",\n \"iso646us\": \"ascii\",\n \"iso646irv\": \"ascii\",\n \"us\": \"ascii\",\n\n \"latin1\": \"iso88591\",\n \"latin2\": \"iso88592\",\n \"latin3\": \"iso88593\",\n \"latin4\": \"iso88594\",\n \"latin5\": \"iso88599\",\n \"latin6\": \"iso885910\",\n \"latin7\": \"iso885913\",\n \"latin8\": \"iso885914\",\n \"latin9\": \"iso885915\",\n \"latin10\": \"iso885916\",\n\n \"csisolatin1\": \"iso88591\",\n \"csisolatin2\": \"iso88592\",\n \"csisolatin3\": \"iso88593\",\n \"csisolatin4\": \"iso88594\",\n \"csisolatincyrillic\": \"iso88595\",\n \"csisolatinarabic\": \"iso88596\",\n \"csisolatingreek\" : \"iso88597\",\n \"csisolatinhebrew\": \"iso88598\",\n \"csisolatin5\": \"iso88599\",\n \"csisolatin6\": \"iso885910\",\n\n \"l1\": \"iso88591\",\n \"l2\": \"iso88592\",\n \"l3\": \"iso88593\",\n \"l4\": \"iso88594\",\n \"l5\": \"iso88599\",\n \"l6\": \"iso885910\",\n \"l7\": \"iso885913\",\n \"l8\": \"iso885914\",\n \"l9\": \"iso885915\",\n \"l10\": \"iso885916\",\n\n \"isoir14\": \"iso646jp\",\n \"isoir57\": \"iso646cn\",\n \"isoir100\": \"iso88591\",\n \"isoir101\": \"iso88592\",\n \"isoir109\": \"iso88593\",\n \"isoir110\": \"iso88594\",\n \"isoir144\": \"iso88595\",\n \"isoir127\": \"iso88596\",\n \"isoir126\": \"iso88597\",\n \"isoir138\": \"iso88598\",\n \"isoir148\": \"iso88599\",\n \"isoir157\": \"iso885910\",\n \"isoir166\": \"tis620\",\n \"isoir179\": \"iso885913\",\n \"isoir199\": \"iso885914\",\n \"isoir203\": \"iso885915\",\n \"isoir226\": \"iso885916\",\n\n \"cp819\": \"iso88591\",\n \"ibm819\": \"iso88591\",\n\n \"cyrillic\": \"iso88595\",\n\n \"arabic\": \"iso88596\",\n \"arabic8\": \"iso88596\",\n \"ecma114\": \"iso88596\",\n \"asmo708\": \"iso88596\",\n\n \"greek\" : \"iso88597\",\n \"greek8\" : \"iso88597\",\n \"ecma118\" : \"iso88597\",\n \"elot928\" : \"iso88597\",\n\n \"hebrew\": \"iso88598\",\n \"hebrew8\": \"iso88598\",\n\n \"turkish\": \"iso88599\",\n \"turkish8\": \"iso88599\",\n\n \"thai\": \"iso885911\",\n \"thai8\": \"iso885911\",\n\n \"celtic\": \"iso885914\",\n \"celtic8\": \"iso885914\",\n \"isoceltic\": \"iso885914\",\n\n \"tis6200\": \"tis620\",\n \"tis62025291\": \"tis620\",\n \"tis62025330\": \"tis620\",\n\n \"10000\": \"macroman\",\n \"10006\": \"macgreek\",\n \"10007\": \"maccyrillic\",\n \"10079\": \"maciceland\",\n \"10081\": \"macturkish\",\n\n \"cspc8codepage437\": \"cp437\",\n \"cspc775baltic\": \"cp775\",\n \"cspc850multilingual\": \"cp850\",\n \"cspcp852\": \"cp852\",\n \"cspc862latinhebrew\": \"cp862\",\n \"cpgr\": \"cp869\",\n\n \"msee\": \"cp1250\",\n \"mscyrl\": \"cp1251\",\n \"msansi\": \"cp1252\",\n \"msgreek\": \"cp1253\",\n \"msturk\": \"cp1254\",\n \"mshebr\": \"cp1255\",\n \"msarab\": \"cp1256\",\n \"winbaltrim\": \"cp1257\",\n\n \"cp20866\": \"koi8r\",\n \"20866\": \"koi8r\",\n \"ibm878\": \"koi8r\",\n \"cskoi8r\": \"koi8r\",\n\n \"cp21866\": \"koi8u\",\n \"21866\": \"koi8u\",\n \"ibm1168\": \"koi8u\",\n\n \"strk10482002\": \"rk1048\",\n\n \"tcvn5712\": \"tcvn\",\n \"tcvn57121\": \"tcvn\",\n\n \"gb198880\": \"iso646cn\",\n \"cn\": \"iso646cn\",\n\n \"csiso14jisc6220ro\": \"iso646jp\",\n \"jisc62201969ro\": \"iso646jp\",\n \"jp\": \"iso646jp\",\n\n \"cshproman8\": \"hproman8\",\n \"r8\": \"hproman8\",\n \"roman8\": \"hproman8\",\n \"xroman8\": \"hproman8\",\n \"ibm1051\": \"hproman8\",\n\n \"mac\": \"macintosh\",\n \"csmacintosh\": \"macintosh\",\n};\n\n","\"use strict\";\n\n// Generated data for sbcs codec. Don't edit manually. Regenerate using generation/gen-sbcs.js script.\nmodule.exports = {\n \"437\": \"cp437\",\n \"737\": \"cp737\",\n \"775\": \"cp775\",\n \"850\": \"cp850\",\n \"852\": \"cp852\",\n \"855\": \"cp855\",\n \"856\": \"cp856\",\n \"857\": \"cp857\",\n \"858\": \"cp858\",\n \"860\": \"cp860\",\n \"861\": \"cp861\",\n \"862\": \"cp862\",\n \"863\": \"cp863\",\n \"864\": \"cp864\",\n \"865\": \"cp865\",\n \"866\": \"cp866\",\n \"869\": \"cp869\",\n \"874\": \"windows874\",\n \"922\": \"cp922\",\n \"1046\": \"cp1046\",\n \"1124\": \"cp1124\",\n \"1125\": \"cp1125\",\n \"1129\": \"cp1129\",\n \"1133\": \"cp1133\",\n \"1161\": \"cp1161\",\n \"1162\": \"cp1162\",\n \"1163\": \"cp1163\",\n \"1250\": \"windows1250\",\n \"1251\": \"windows1251\",\n \"1252\": \"windows1252\",\n \"1253\": \"windows1253\",\n \"1254\": \"windows1254\",\n \"1255\": \"windows1255\",\n \"1256\": \"windows1256\",\n \"1257\": \"windows1257\",\n \"1258\": \"windows1258\",\n \"28591\": \"iso88591\",\n \"28592\": \"iso88592\",\n \"28593\": \"iso88593\",\n \"28594\": \"iso88594\",\n \"28595\": \"iso88595\",\n \"28596\": \"iso88596\",\n \"28597\": \"iso88597\",\n \"28598\": \"iso88598\",\n \"28599\": \"iso88599\",\n \"28600\": \"iso885910\",\n \"28601\": \"iso885911\",\n \"28603\": \"iso885913\",\n \"28604\": \"iso885914\",\n \"28605\": \"iso885915\",\n \"28606\": \"iso885916\",\n \"windows874\": {\n \"type\": \"_sbcs\",\n \"chars\": \"€����…�����������‘’“”•–—�������� กขฃคฅฆงจฉชซฌญฎฏฐฑฒณดตถทธนบปผฝพฟภมยรฤลฦวศษสหฬอฮฯะัาำิีึืฺุู����฿เแโใไๅๆ็่้๊๋์ํ๎๏๐๑๒๓๔๕๖๗๘๙๚๛����\"\n },\n \"win874\": \"windows874\",\n \"cp874\": \"windows874\",\n \"windows1250\": {\n \"type\": \"_sbcs\",\n \"chars\": \"€�‚�„…†‡�‰Š‹ŚŤŽŹ�‘’“”•–—�™š›śťžź ˇ˘Ł¤Ą¦§¨©Ş«¬­®Ż°±˛ł´µ¶·¸ąş»Ľ˝ľżŔÁÂĂÄĹĆÇČÉĘËĚÍÎĎĐŃŇÓÔŐÖ×ŘŮÚŰÜÝŢßŕáâăäĺćçčéęëěíîďđńňóôőö÷řůúűüýţ˙\"\n },\n \"win1250\": \"windows1250\",\n \"cp1250\": \"windows1250\",\n \"windows1251\": {\n \"type\": \"_sbcs\",\n \"chars\": \"ЂЃ‚ѓ„…†‡€‰Љ‹ЊЌЋЏђ‘’“”•–—�™љ›њќћџ ЎўЈ¤Ґ¦§Ё©Є«¬­®Ї°±Ііґµ¶·ё№є»јЅѕїАБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыьэюя\"\n },\n \"win1251\": \"windows1251\",\n \"cp1251\": \"windows1251\",\n \"windows1252\": {\n \"type\": \"_sbcs\",\n \"chars\": \"€�‚ƒ„…†‡ˆ‰Š‹Œ�Ž��‘’“”•–—˜™š›œ�žŸ ¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿ\"\n },\n \"win1252\": \"windows1252\",\n \"cp1252\": \"windows1252\",\n \"windows1253\": {\n \"type\": \"_sbcs\",\n \"chars\": \"€�‚ƒ„…†‡�‰�‹�����‘’“”•–—�™�›���� ΅Ά£¤¥¦§¨©�«¬­®―°±²³΄µ¶·ΈΉΊ»Ό½ΎΏΐΑΒΓΔΕΖΗΘΙΚΛΜΝΞΟΠΡ�ΣΤΥΦΧΨΩΪΫάέήίΰαβγδεζηθικλμνξοπρςστυφχψωϊϋόύώ�\"\n },\n \"win1253\": \"windows1253\",\n \"cp1253\": \"windows1253\",\n \"windows1254\": {\n \"type\": \"_sbcs\",\n \"chars\": \"€�‚ƒ„…†‡ˆ‰Š‹Œ����‘’“”•–—˜™š›œ��Ÿ ¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏĞÑÒÓÔÕÖ×ØÙÚÛÜİŞßàáâãäåæçèéêëìíîïğñòóôõö÷øùúûüışÿ\"\n },\n \"win1254\": \"windows1254\",\n \"cp1254\": \"windows1254\",\n \"windows1255\": {\n \"type\": \"_sbcs\",\n \"chars\": \"€�‚ƒ„…†‡ˆ‰�‹�����‘’“”•–—˜™�›���� ¡¢£₪¥¦§¨©×«¬­®¯°±²³´µ¶·¸¹÷»¼½¾¿ְֱֲֳִֵֶַָֹֺֻּֽ־ֿ׀ׁׂ׃װױײ׳״�������אבגדהוזחטיךכלםמןנסעףפץצקרשת��‎‏�\"\n },\n \"win1255\": \"windows1255\",\n \"cp1255\": \"windows1255\",\n \"windows1256\": {\n \"type\": \"_sbcs\",\n \"chars\": \"€پ‚ƒ„…†‡ˆ‰ٹ‹Œچژڈگ‘’“”•–—ک™ڑ›œ‌‍ں ،¢£¤¥¦§¨©ھ«¬­®¯°±²³´µ¶·¸¹؛»¼½¾؟ہءآأؤإئابةتثجحخدذرزسشصض×طظعغـفقكàلâمنهوçèéêëىيîïًٌٍَôُِ÷ّùْûü‎‏ے\"\n },\n \"win1256\": \"windows1256\",\n \"cp1256\": \"windows1256\",\n \"windows1257\": {\n \"type\": \"_sbcs\",\n \"chars\": \"€�‚�„…†‡�‰�‹�¨ˇ¸�‘’“”•–—�™�›�¯˛� �¢£¤�¦§Ø©Ŗ«¬­®Æ°±²³´µ¶·ø¹ŗ»¼½¾æĄĮĀĆÄÅĘĒČÉŹĖĢĶĪĻŠŃŅÓŌÕÖ×ŲŁŚŪÜŻŽßąįāćäåęēčéźėģķīļšńņóōõö÷ųłśūüżž˙\"\n },\n \"win1257\": \"windows1257\",\n \"cp1257\": \"windows1257\",\n \"windows1258\": {\n \"type\": \"_sbcs\",\n \"chars\": \"€�‚ƒ„…†‡ˆ‰�‹Œ����‘’“”•–—˜™�›œ��Ÿ ¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂĂÄÅÆÇÈÉÊË̀ÍÎÏĐÑ̉ÓÔƠÖ×ØÙÚÛÜỮßàáâăäåæçèéêë́íîïđṇ̃óôơö÷øùúûüư₫ÿ\"\n },\n \"win1258\": \"windows1258\",\n \"cp1258\": \"windows1258\",\n \"iso88591\": {\n \"type\": \"_sbcs\",\n \"chars\": \"€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿ\"\n },\n \"cp28591\": \"iso88591\",\n \"iso88592\": {\n \"type\": \"_sbcs\",\n \"chars\": \"€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ Ą˘Ł¤ĽŚ§¨ŠŞŤŹ­ŽŻ°ą˛ł´ľśˇ¸šşťź˝žżŔÁÂĂÄĹĆÇČÉĘËĚÍÎĎĐŃŇÓÔŐÖ×ŘŮÚŰÜÝŢßŕáâăäĺćçčéęëěíîďđńňóôőö÷řůúűüýţ˙\"\n },\n \"cp28592\": \"iso88592\",\n \"iso88593\": {\n \"type\": \"_sbcs\",\n \"chars\": \"€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ Ħ˘£¤�Ĥ§¨İŞĞĴ­�Ż°ħ²³´µĥ·¸ışğĵ½�żÀÁÂ�ÄĊĈÇÈÉÊËÌÍÎÏ�ÑÒÓÔĠÖ×ĜÙÚÛÜŬŜßàáâ�äċĉçèéêëìíîï�ñòóôġö÷ĝùúûüŭŝ˙\"\n },\n \"cp28593\": \"iso88593\",\n \"iso88594\": {\n \"type\": \"_sbcs\",\n \"chars\": \"€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ĄĸŖ¤ĨĻ§¨ŠĒĢŦ­Ž¯°ą˛ŗ´ĩļˇ¸šēģŧŊžŋĀÁÂÃÄÅÆĮČÉĘËĖÍÎĪĐŅŌĶÔÕÖ×ØŲÚÛÜŨŪßāáâãäåæįčéęëėíîīđņōķôõö÷øųúûüũū˙\"\n },\n \"cp28594\": \"iso88594\",\n \"iso88595\": {\n \"type\": \"_sbcs\",\n \"chars\": \"€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ЁЂЃЄЅІЇЈЉЊЋЌ­ЎЏАБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыьэюя№ёђѓєѕіїјљњћќ§ўџ\"\n },\n \"cp28595\": \"iso88595\",\n \"iso88596\": {\n \"type\": \"_sbcs\",\n \"chars\": \"€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ���¤�������،­�������������؛���؟�ءآأؤإئابةتثجحخدذرزسشصضطظعغ�����ـفقكلمنهوىيًٌٍَُِّْ�������������\"\n },\n \"cp28596\": \"iso88596\",\n \"iso88597\": {\n \"type\": \"_sbcs\",\n \"chars\": \"€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ‘’£€₯¦§¨©ͺ«¬­�―°±²³΄΅Ά·ΈΉΊ»Ό½ΎΏΐΑΒΓΔΕΖΗΘΙΚΛΜΝΞΟΠΡ�ΣΤΥΦΧΨΩΪΫάέήίΰαβγδεζηθικλμνξοπρςστυφχψωϊϋόύώ�\"\n },\n \"cp28597\": \"iso88597\",\n \"iso88598\": {\n \"type\": \"_sbcs\",\n \"chars\": \"€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ �¢£¤¥¦§¨©×«¬­®¯°±²³´µ¶·¸¹÷»¼½¾��������������������������������‗אבגדהוזחטיךכלםמןנסעףפץצקרשת��‎‏�\"\n },\n \"cp28598\": \"iso88598\",\n \"iso88599\": {\n \"type\": \"_sbcs\",\n \"chars\": \"€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏĞÑÒÓÔÕÖ×ØÙÚÛÜİŞßàáâãäåæçèéêëìíîïğñòóôõö÷øùúûüışÿ\"\n },\n \"cp28599\": \"iso88599\",\n \"iso885910\": {\n \"type\": \"_sbcs\",\n \"chars\": \"€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ĄĒĢĪĨĶ§ĻĐŠŦŽ­ŪŊ°ąēģīĩķ·ļđšŧž―ūŋĀÁÂÃÄÅÆĮČÉĘËĖÍÎÏÐŅŌÓÔÕÖŨØŲÚÛÜÝÞßāáâãäåæįčéęëėíîïðņōóôõöũøųúûüýþĸ\"\n },\n \"cp28600\": \"iso885910\",\n \"iso885911\": {\n \"type\": \"_sbcs\",\n \"chars\": \"€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ กขฃคฅฆงจฉชซฌญฎฏฐฑฒณดตถทธนบปผฝพฟภมยรฤลฦวศษสหฬอฮฯะัาำิีึืฺุู����฿เแโใไๅๆ็่้๊๋์ํ๎๏๐๑๒๓๔๕๖๗๘๙๚๛����\"\n },\n \"cp28601\": \"iso885911\",\n \"iso885913\": {\n \"type\": \"_sbcs\",\n \"chars\": \"€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ”¢£¤„¦§Ø©Ŗ«¬­®Æ°±²³“µ¶·ø¹ŗ»¼½¾æĄĮĀĆÄÅĘĒČÉŹĖĢĶĪĻŠŃŅÓŌÕÖ×ŲŁŚŪÜŻŽßąįāćäåęēčéźėģķīļšńņóōõö÷ųłśūüżž’\"\n },\n \"cp28603\": \"iso885913\",\n \"iso885914\": {\n \"type\": \"_sbcs\",\n \"chars\": \"€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ Ḃḃ£ĊċḊ§Ẁ©ẂḋỲ­®ŸḞḟĠġṀṁ¶ṖẁṗẃṠỳẄẅṡÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏŴÑÒÓÔÕÖṪØÙÚÛÜÝŶßàáâãäåæçèéêëìíîïŵñòóôõöṫøùúûüýŷÿ\"\n },\n \"cp28604\": \"iso885914\",\n \"iso885915\": {\n \"type\": \"_sbcs\",\n \"chars\": \"€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£€¥Š§š©ª«¬­®¯°±²³Žµ¶·ž¹º»ŒœŸ¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿ\"\n },\n \"cp28605\": \"iso885915\",\n \"iso885916\": {\n \"type\": \"_sbcs\",\n \"chars\": \"€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ĄąŁ€„Š§š©Ș«Ź­źŻ°±ČłŽ”¶·žčș»ŒœŸżÀÁÂĂÄĆÆÇÈÉÊËÌÍÎÏĐŃÒÓÔŐÖŚŰÙÚÛÜĘȚßàáâăäćæçèéêëìíîïđńòóôőöśűùúûüęțÿ\"\n },\n \"cp28606\": \"iso885916\",\n \"cp437\": {\n \"type\": \"_sbcs\",\n \"chars\": \"ÇüéâäàåçêëèïîìÄÅÉæÆôöòûùÿÖÜ¢£¥₧ƒáíóúñѪº¿⌐¬½¼¡«»░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀αßΓπΣσµτΦΘΩδ∞φε∩≡±≥≤⌠⌡÷≈°∙·√ⁿ²■ \"\n },\n \"ibm437\": \"cp437\",\n \"csibm437\": \"cp437\",\n \"cp737\": {\n \"type\": \"_sbcs\",\n \"chars\": \"ΑΒΓΔΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦΧΨΩαβγδεζηθικλμνξοπρσςτυφχψ░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀ωάέήϊίόύϋώΆΈΉΊΌΎΏ±≥≤ΪΫ÷≈°∙·√ⁿ²■ \"\n },\n \"ibm737\": \"cp737\",\n \"csibm737\": \"cp737\",\n \"cp775\": {\n \"type\": \"_sbcs\",\n \"chars\": \"ĆüéāäģåćłēŖŗīŹÄÅÉæÆōöĢ¢ŚśÖÜø£ØפĀĪóŻżź”¦©®¬½¼Ł«»░▒▓│┤ĄČĘĖ╣║╗╝ĮŠ┐└┴┬├─┼ŲŪ╚╔╩╦╠═╬Žąčęėįšųūž┘┌█▄▌▐▀ÓßŌŃõÕµńĶķĻļņĒŅ’­±“¾¶§÷„°∙·¹³²■ \"\n },\n \"ibm775\": \"cp775\",\n \"csibm775\": \"cp775\",\n \"cp850\": {\n \"type\": \"_sbcs\",\n \"chars\": \"ÇüéâäàåçêëèïîìÄÅÉæÆôöòûùÿÖÜø£Ø׃áíóúñѪº¿®¬½¼¡«»░▒▓│┤ÁÂÀ©╣║╗╝¢¥┐└┴┬├─┼ãÃ╚╔╩╦╠═╬¤ðÐÊËÈıÍÎÏ┘┌█▄¦Ì▀ÓßÔÒõÕµþÞÚÛÙýݯ´­±‗¾¶§÷¸°¨·¹³²■ \"\n },\n \"ibm850\": \"cp850\",\n \"csibm850\": \"cp850\",\n \"cp852\": {\n \"type\": \"_sbcs\",\n \"chars\": \"ÇüéâäůćçłëŐőîŹÄĆÉĹĺôöĽľŚśÖÜŤťŁ×čáíóúĄąŽžĘ꬟Ⱥ«»░▒▓│┤ÁÂĚŞ╣║╗╝Żż┐└┴┬├─┼Ăă╚╔╩╦╠═╬¤đĐĎËďŇÍÎě┘┌█▄ŢŮ▀ÓßÔŃńňŠšŔÚŕŰýÝţ´­˝˛ˇ˘§÷¸°¨˙űŘř■ \"\n },\n \"ibm852\": \"cp852\",\n \"csibm852\": \"cp852\",\n \"cp855\": {\n \"type\": \"_sbcs\",\n \"chars\": \"ђЂѓЃёЁєЄѕЅіІїЇјЈљЉњЊћЋќЌўЎџЏюЮъЪаАбБцЦдДеЕфФгГ«»░▒▓│┤хХиИ╣║╗╝йЙ┐└┴┬├─┼кК╚╔╩╦╠═╬¤лЛмМнНоОп┘┌█▄Пя▀ЯрРсСтТуУжЖвВьЬ№­ыЫзЗшШэЭщЩчЧ§■ \"\n },\n \"ibm855\": \"cp855\",\n \"csibm855\": \"cp855\",\n \"cp856\": {\n \"type\": \"_sbcs\",\n \"chars\": \"אבגדהוזחטיךכלםמןנסעףפץצקרשת�£�×����������®¬½¼�«»░▒▓│┤���©╣║╗╝¢¥┐└┴┬├─┼��╚╔╩╦╠═╬¤���������┘┌█▄¦�▀������µ�������¯´­±‗¾¶§÷¸°¨·¹³²■ \"\n },\n \"ibm856\": \"cp856\",\n \"csibm856\": \"cp856\",\n \"cp857\": {\n \"type\": \"_sbcs\",\n \"chars\": \"ÇüéâäàåçêëèïîıÄÅÉæÆôöòûùİÖÜø£ØŞşáíóúñÑĞ𿮬½¼¡«»░▒▓│┤ÁÂÀ©╣║╗╝¢¥┐└┴┬├─┼ãÃ╚╔╩╦╠═╬¤ºªÊËÈ�ÍÎÏ┘┌█▄¦Ì▀ÓßÔÒõÕµ�×ÚÛÙìÿ¯´­±�¾¶§÷¸°¨·¹³²■ \"\n },\n \"ibm857\": \"cp857\",\n \"csibm857\": \"cp857\",\n \"cp858\": {\n \"type\": \"_sbcs\",\n \"chars\": \"ÇüéâäàåçêëèïîìÄÅÉæÆôöòûùÿÖÜø£Ø׃áíóúñѪº¿®¬½¼¡«»░▒▓│┤ÁÂÀ©╣║╗╝¢¥┐└┴┬├─┼ãÃ╚╔╩╦╠═╬¤ðÐÊËÈ€ÍÎÏ┘┌█▄¦Ì▀ÓßÔÒõÕµþÞÚÛÙýݯ´­±‗¾¶§÷¸°¨·¹³²■ \"\n },\n \"ibm858\": \"cp858\",\n \"csibm858\": \"cp858\",\n \"cp860\": {\n \"type\": \"_sbcs\",\n \"chars\": \"ÇüéâãàÁçêÊèÍÔìÃÂÉÀÈôõòÚùÌÕÜ¢£Ù₧ÓáíóúñѪº¿Ò¬½¼¡«»░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀αßΓπΣσµτΦΘΩδ∞φε∩≡±≥≤⌠⌡÷≈°∙·√ⁿ²■ \"\n },\n \"ibm860\": \"cp860\",\n \"csibm860\": \"cp860\",\n \"cp861\": {\n \"type\": \"_sbcs\",\n \"chars\": \"ÇüéâäàåçêëèÐðÞÄÅÉæÆôöþûÝýÖÜø£Ø₧ƒáíóúÁÍÓÚ¿⌐¬½¼¡«»░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀αßΓπΣσµτΦΘΩδ∞φε∩≡±≥≤⌠⌡÷≈°∙·√ⁿ²■ \"\n },\n \"ibm861\": \"cp861\",\n \"csibm861\": \"cp861\",\n \"cp862\": {\n \"type\": \"_sbcs\",\n \"chars\": \"אבגדהוזחטיךכלםמןנסעףפץצקרשת¢£¥₧ƒáíóúñѪº¿⌐¬½¼¡«»░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀αßΓπΣσµτΦΘΩδ∞φε∩≡±≥≤⌠⌡÷≈°∙·√ⁿ²■ \"\n },\n \"ibm862\": \"cp862\",\n \"csibm862\": \"cp862\",\n \"cp863\": {\n \"type\": \"_sbcs\",\n \"chars\": \"ÇüéâÂà¶çêëèïî‗À§ÉÈÊôËÏûù¤ÔÜ¢£ÙÛƒ¦´óú¨¸³¯Î⌐¬½¼¾«»░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀αßΓπΣσµτΦΘΩδ∞φε∩≡±≥≤⌠⌡÷≈°∙·√ⁿ²■ \"\n },\n \"ibm863\": \"cp863\",\n \"csibm863\": \"cp863\",\n \"cp864\": {\n \"type\": \"_sbcs\",\n \"chars\": \"\\u0000\\u0001\\u0002\\u0003\\u0004\\u0005\\u0006\\u0007\\b\\t\\n\\u000b\\f\\r\\u000e\\u000f\\u0010\\u0011\\u0012\\u0013\\u0014\\u0015\\u0016\\u0017\\u0018\\u0019\\u001a\\u001b\\u001c\\u001d\\u001e\\u001f !\\\"#$٪&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\\\]^_`abcdefghijklmnopqrstuvwxyz{|}~°·∙√▒─│┼┤┬├┴┐┌└┘β∞φ±½¼≈«»ﻷﻸ��ﻻﻼ� ­ﺂ£¤ﺄ��ﺎﺏﺕﺙ،ﺝﺡﺥ٠١٢٣٤٥٦٧٨٩ﻑ؛ﺱﺵﺹ؟¢ﺀﺁﺃﺅﻊﺋﺍﺑﺓﺗﺛﺟﺣﺧﺩﺫﺭﺯﺳﺷﺻﺿﻁﻅﻋﻏ¦¬÷×ﻉـﻓﻗﻛﻟﻣﻧﻫﻭﻯﻳﺽﻌﻎﻍﻡﹽّﻥﻩﻬﻰﻲﻐﻕﻵﻶﻝﻙﻱ■�\"\n },\n \"ibm864\": \"cp864\",\n \"csibm864\": \"cp864\",\n \"cp865\": {\n \"type\": \"_sbcs\",\n \"chars\": \"ÇüéâäàåçêëèïîìÄÅÉæÆôöòûùÿÖÜø£Ø₧ƒáíóúñѪº¿⌐¬½¼¡«¤░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀αßΓπΣσµτΦΘΩδ∞φε∩≡±≥≤⌠⌡÷≈°∙·√ⁿ²■ \"\n },\n \"ibm865\": \"cp865\",\n \"csibm865\": \"cp865\",\n \"cp866\": {\n \"type\": \"_sbcs\",\n \"chars\": \"АБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмноп░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀рстуфхцчшщъыьэюяЁёЄєЇїЎў°∙·√№¤■ \"\n },\n \"ibm866\": \"cp866\",\n \"csibm866\": \"cp866\",\n \"cp869\": {\n \"type\": \"_sbcs\",\n \"chars\": \"������Ά�·¬¦‘’Έ―ΉΊΪΌ��ΎΫ©Ώ²³ά£έήίϊΐόύΑΒΓΔΕΖΗ½ΘΙ«»░▒▓│┤ΚΛΜΝ╣║╗╝ΞΟ┐└┴┬├─┼ΠΡ╚╔╩╦╠═╬ΣΤΥΦΧΨΩαβγ┘┌█▄δε▀ζηθικλμνξοπρσςτ΄­±υφχ§ψ΅°¨ωϋΰώ■ \"\n },\n \"ibm869\": \"cp869\",\n \"csibm869\": \"cp869\",\n \"cp922\": {\n \"type\": \"_sbcs\",\n \"chars\": \"€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§¨©ª«¬­®‾°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏŠÑÒÓÔÕÖ×ØÙÚÛÜÝŽßàáâãäåæçèéêëìíîïšñòóôõö÷øùúûüýžÿ\"\n },\n \"ibm922\": \"cp922\",\n \"csibm922\": \"cp922\",\n \"cp1046\": {\n \"type\": \"_sbcs\",\n \"chars\": \"ﺈ×÷ﹱˆ■│─┐┌└┘ﹹﹻﹽﹿﹷﺊﻰﻳﻲﻎﻏﻐﻶﻸﻺﻼ ¤ﺋﺑﺗﺛﺟﺣ،­ﺧﺳ٠١٢٣٤٥٦٧٨٩ﺷ؛ﺻﺿﻊ؟ﻋءآأؤإئابةتثجحخدذرزسشصضطﻇعغﻌﺂﺄﺎﻓـفقكلمنهوىيًٌٍَُِّْﻗﻛﻟﻵﻷﻹﻻﻣﻧﻬﻩ�\"\n },\n \"ibm1046\": \"cp1046\",\n \"csibm1046\": \"cp1046\",\n \"cp1124\": {\n \"type\": \"_sbcs\",\n \"chars\": \"€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ЁЂҐЄЅІЇЈЉЊЋЌ­ЎЏАБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыьэюя№ёђґєѕіїјљњћќ§ўџ\"\n },\n \"ibm1124\": \"cp1124\",\n \"csibm1124\": \"cp1124\",\n \"cp1125\": {\n \"type\": \"_sbcs\",\n \"chars\": \"АБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмноп░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀рстуфхцчшщъыьэюяЁёҐґЄєІіЇї·√№¤■ \"\n },\n \"ibm1125\": \"cp1125\",\n \"csibm1125\": \"cp1125\",\n \"cp1129\": {\n \"type\": \"_sbcs\",\n \"chars\": \"€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§œ©ª«¬­®¯°±²³Ÿµ¶·Œ¹º»¼½¾¿ÀÁÂĂÄÅÆÇÈÉÊË̀ÍÎÏĐÑ̉ÓÔƠÖ×ØÙÚÛÜỮßàáâăäåæçèéêë́íîïđṇ̃óôơö÷øùúûüư₫ÿ\"\n },\n \"ibm1129\": \"cp1129\",\n \"csibm1129\": \"cp1129\",\n \"cp1133\": {\n \"type\": \"_sbcs\",\n \"chars\": \"€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ກຂຄງຈສຊຍດຕຖທນບປຜຝພຟມຢຣລວຫອຮ���ຯະາຳິີຶືຸູຼັົຽ���ເແໂໃໄ່້໊໋໌ໍໆ�ໜໝ₭����������������໐໑໒໓໔໕໖໗໘໙��¢¬¦�\"\n },\n \"ibm1133\": \"cp1133\",\n \"csibm1133\": \"cp1133\",\n \"cp1161\": {\n \"type\": \"_sbcs\",\n \"chars\": \"��������������������������������่กขฃคฅฆงจฉชซฌญฎฏฐฑฒณดตถทธนบปผฝพฟภมยรฤลฦวศษสหฬอฮฯะัาำิีึืฺุู้๊๋€฿เแโใไๅๆ็่้๊๋์ํ๎๏๐๑๒๓๔๕๖๗๘๙๚๛¢¬¦ \"\n },\n \"ibm1161\": \"cp1161\",\n \"csibm1161\": \"cp1161\",\n \"cp1162\": {\n \"type\": \"_sbcs\",\n \"chars\": \"€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ กขฃคฅฆงจฉชซฌญฎฏฐฑฒณดตถทธนบปผฝพฟภมยรฤลฦวศษสหฬอฮฯะัาำิีึืฺุู����฿เแโใไๅๆ็่้๊๋์ํ๎๏๐๑๒๓๔๕๖๗๘๙๚๛����\"\n },\n \"ibm1162\": \"cp1162\",\n \"csibm1162\": \"cp1162\",\n \"cp1163\": {\n \"type\": \"_sbcs\",\n \"chars\": \"€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£€¥¦§œ©ª«¬­®¯°±²³Ÿµ¶·Œ¹º»¼½¾¿ÀÁÂĂÄÅÆÇÈÉÊË̀ÍÎÏĐÑ̉ÓÔƠÖ×ØÙÚÛÜỮßàáâăäåæçèéêë́íîïđṇ̃óôơö÷øùúûüư₫ÿ\"\n },\n \"ibm1163\": \"cp1163\",\n \"csibm1163\": \"cp1163\",\n \"maccroatian\": {\n \"type\": \"_sbcs\",\n \"chars\": \"ÄÅÇÉÑÖÜáàâäãåçéèêëíìîïñóòôöõúùûü†°¢£§•¶ß®Š™´¨≠ŽØ∞±≤≥∆µ∂∑∏š∫ªºΩžø¿¡¬√ƒ≈Ć«Č… ÀÃÕŒœĐ—“”‘’÷◊�©⁄¤‹›Æ»–·‚„‰ÂćÁčÈÍÎÏÌÓÔđÒÚÛÙıˆ˜¯πË˚¸Êæˇ\"\n },\n \"maccyrillic\": {\n \"type\": \"_sbcs\",\n \"chars\": \"АБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯ†°¢£§•¶І®©™Ђђ≠Ѓѓ∞±≤≥іµ∂ЈЄєЇїЉљЊњјЅ¬√ƒ≈∆«»… ЋћЌќѕ–—“”‘’÷„ЎўЏџ№Ёёяабвгдежзийклмнопрстуфхцчшщъыьэю¤\"\n },\n \"macgreek\": {\n \"type\": \"_sbcs\",\n \"chars\": \"Ĺ²É³ÖÜ΅àâä΄¨çéèê룙î‰ôö¦­ùûü†ΓΔΘΛΞΠß®©ΣΪ§≠°·Α±≤≥¥ΒΕΖΗΙΚΜΦΫΨΩάΝ¬ΟΡ≈Τ«»… ΥΧΆΈœ–―“”‘’÷ΉΊΌΎέήίόΏύαβψδεφγηιξκλμνοπώρστθωςχυζϊϋΐΰ�\"\n },\n \"maciceland\": {\n \"type\": \"_sbcs\",\n \"chars\": \"ÄÅÇÉÑÖÜáàâäãåçéèêëíìîïñóòôöõúùûüÝ°¢£§•¶ß®©™´¨≠ÆØ∞±≤≥¥µ∂∑∏π∫ªºΩæø¿¡¬√ƒ≈∆«»… ÀÃÕŒœ–—“”‘’÷◊ÿŸ⁄¤ÐðÞþý·‚„‰ÂÊÁËÈÍÎÏÌÓÔ�ÒÚÛÙıˆ˜¯˘˙˚¸˝˛ˇ\"\n },\n \"macroman\": {\n \"type\": \"_sbcs\",\n \"chars\": \"ÄÅÇÉÑÖÜáàâäãåçéèêëíìîïñóòôöõúùûü†°¢£§•¶ß®©™´¨≠ÆØ∞±≤≥¥µ∂∑∏π∫ªºΩæø¿¡¬√ƒ≈∆«»… ÀÃÕŒœ–—“”‘’÷◊ÿŸ⁄¤‹›fifl‡·‚„‰ÂÊÁËÈÍÎÏÌÓÔ�ÒÚÛÙıˆ˜¯˘˙˚¸˝˛ˇ\"\n },\n \"macromania\": {\n \"type\": \"_sbcs\",\n \"chars\": \"ÄÅÇÉÑÖÜáàâäãåçéèêëíìîïñóòôöõúùûü†°¢£§•¶ß®©™´¨≠ĂŞ∞±≤≥¥µ∂∑∏π∫ªºΩăş¿¡¬√ƒ≈∆«»… ÀÃÕŒœ–—“”‘’÷◊ÿŸ⁄¤‹›Ţţ‡·‚„‰ÂÊÁËÈÍÎÏÌÓÔ�ÒÚÛÙıˆ˜¯˘˙˚¸˝˛ˇ\"\n },\n \"macthai\": {\n \"type\": \"_sbcs\",\n \"chars\": \"«»…“”�•‘’� กขฃคฅฆงจฉชซฌญฎฏฐฑฒณดตถทธนบปผฝพฟภมยรฤลฦวศษสหฬอฮฯะัาำิีึืฺุู​–—฿เแโใไๅๆ็่้๊๋์ํ™๏๐๑๒๓๔๕๖๗๘๙®©����\"\n },\n \"macturkish\": {\n \"type\": \"_sbcs\",\n \"chars\": \"ÄÅÇÉÑÖÜáàâäãåçéèêëíìîïñóòôöõúùûü†°¢£§•¶ß®©™´¨≠ÆØ∞±≤≥¥µ∂∑∏π∫ªºΩæø¿¡¬√ƒ≈∆«»… ÀÃÕŒœ–—“”‘’÷◊ÿŸĞğİıŞş‡·‚„‰ÂÊÁËÈÍÎÏÌÓÔ�ÒÚÛÙ�ˆ˜¯˘˙˚¸˝˛ˇ\"\n },\n \"macukraine\": {\n \"type\": \"_sbcs\",\n \"chars\": \"АБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯ†°Ґ£§•¶І®©™Ђђ≠Ѓѓ∞±≤≥іµґЈЄєЇїЉљЊњјЅ¬√ƒ≈∆«»… ЋћЌќѕ–—“”‘’÷„ЎўЏџ№Ёёяабвгдежзийклмнопрстуфхцчшщъыьэю¤\"\n },\n \"koi8r\": {\n \"type\": \"_sbcs\",\n \"chars\": \"─│┌┐└┘├┤┬┴┼▀▄█▌▐░▒▓⌠■∙√≈≤≥ ⌡°²·÷═║╒ё╓╔╕╖╗╘╙╚╛╜╝╞╟╠╡Ё╢╣╤╥╦╧╨╩╪╫╬©юабцдефгхийклмнопярстужвьызшэщчъЮАБЦДЕФГХИЙКЛМНОПЯРСТУЖВЬЫЗШЭЩЧЪ\"\n },\n \"koi8u\": {\n \"type\": \"_sbcs\",\n \"chars\": \"─│┌┐└┘├┤┬┴┼▀▄█▌▐░▒▓⌠■∙√≈≤≥ ⌡°²·÷═║╒ёє╔ії╗╘╙╚╛ґ╝╞╟╠╡ЁЄ╣ІЇ╦╧╨╩╪Ґ╬©юабцдефгхийклмнопярстужвьызшэщчъЮАБЦДЕФГХИЙКЛМНОПЯРСТУЖВЬЫЗШЭЩЧЪ\"\n },\n \"koi8ru\": {\n \"type\": \"_sbcs\",\n \"chars\": \"─│┌┐└┘├┤┬┴┼▀▄█▌▐░▒▓⌠■∙√≈≤≥ ⌡°²·÷═║╒ёє╔ії╗╘╙╚╛ґў╞╟╠╡ЁЄ╣ІЇ╦╧╨╩╪ҐЎ©юабцдефгхийклмнопярстужвьызшэщчъЮАБЦДЕФГХИЙКЛМНОПЯРСТУЖВЬЫЗШЭЩЧЪ\"\n },\n \"koi8t\": {\n \"type\": \"_sbcs\",\n \"chars\": \"қғ‚Ғ„…†‡�‰ҳ‹ҲҷҶ�Қ‘’“”•–—�™�›�����ӯӮё¤ӣ¦§���«¬­®�°±²Ё�Ӣ¶·�№�»���©юабцдефгхийклмнопярстужвьызшэщчъЮАБЦДЕФГХИЙКЛМНОПЯРСТУЖВЬЫЗШЭЩЧЪ\"\n },\n \"armscii8\": {\n \"type\": \"_sbcs\",\n \"chars\": \"€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ �և։)(»«—.՝,-֊…՜՛՞ԱաԲբԳգԴդԵեԶզԷէԸըԹթԺժԻիԼլԽխԾծԿկՀհՁձՂղՃճՄմՅյՆնՇշՈոՉչՊպՋջՌռՍսՎվՏտՐրՑցՒւՓփՔքՕօՖֆ՚�\"\n },\n \"rk1048\": {\n \"type\": \"_sbcs\",\n \"chars\": \"ЂЃ‚ѓ„…†‡€‰Љ‹ЊҚҺЏђ‘’“”•–—�™љ›њқһџ ҰұӘ¤Ө¦§Ё©Ғ«¬­®Ү°±Ііөµ¶·ё№ғ»әҢңүАБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыьэюя\"\n },\n \"tcvn\": {\n \"type\": \"_sbcs\",\n \"chars\": \"\\u0000ÚỤ\\u0003ỪỬỮ\\u0007\\b\\t\\n\\u000b\\f\\r\\u000e\\u000f\\u0010ỨỰỲỶỸÝỴ\\u0018\\u0019\\u001a\\u001b\\u001c\\u001d\\u001e\\u001f !\\\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\\\]^_`abcdefghijklmnopqrstuvwxyz{|}~ÀẢÃÁẠẶẬÈẺẼÉẸỆÌỈĨÍỊÒỎÕÓỌỘỜỞỠỚỢÙỦŨ ĂÂÊÔƠƯĐăâêôơưđẶ̀̀̉̃́àảãáạẲằẳẵắẴẮẦẨẪẤỀặầẩẫấậèỂẻẽéẹềểễếệìỉỄẾỒĩíịòỔỏõóọồổỗốộờởỡớợùỖủũúụừửữứựỳỷỹýỵỐ\"\n },\n \"georgianacademy\": {\n \"type\": \"_sbcs\",\n \"chars\": \"€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿აბგდევზთიკლმნოპჟრსტუფქღყშჩცძწჭხჯჰჱჲჳჴჵჶçèéêëìíîïðñòóôõö÷øùúûüýþÿ\"\n },\n \"georgianps\": {\n \"type\": \"_sbcs\",\n \"chars\": \"€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿აბგდევზჱთიკლმნჲოპჟრსტჳუფქღყშჩცძწჭხჴჯჰჵæçèéêëìíîïðñòóôõö÷øùúûüýþÿ\"\n },\n \"pt154\": {\n \"type\": \"_sbcs\",\n \"chars\": \"ҖҒӮғ„…ҶҮҲүҠӢҢҚҺҸҗ‘’“”•–—ҳҷҡӣңқһҹ ЎўЈӨҘҰ§Ё©Ә«¬ӯ®Ҝ°ұІіҙө¶·ё№ә»јҪҫҝАБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыьэюя\"\n },\n \"viscii\": {\n \"type\": \"_sbcs\",\n \"chars\": \"\\u0000\\u0001Ẳ\\u0003\\u0004ẴẪ\\u0007\\b\\t\\n\\u000b\\f\\r\\u000e\\u000f\\u0010\\u0011\\u0012\\u0013Ỷ\\u0015\\u0016\\u0017\\u0018Ỹ\\u001a\\u001b\\u001c\\u001dỴ\\u001f !\\\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\\\]^_`abcdefghijklmnopqrstuvwxyz{|}~ẠẮẰẶẤẦẨẬẼẸẾỀỂỄỆỐỒỔỖỘỢỚỜỞỊỎỌỈỦŨỤỲÕắằặấầẩậẽẹếềểễệốồổỗỠƠộờởịỰỨỪỬơớƯÀÁÂÃẢĂẳẵÈÉÊẺÌÍĨỳĐứÒÓÔạỷừửÙÚỹỵÝỡưàáâãảăữẫèéêẻìíĩỉđựòóôõỏọụùúũủýợỮ\"\n },\n \"iso646cn\": {\n \"type\": \"_sbcs\",\n \"chars\": \"\\u0000\\u0001\\u0002\\u0003\\u0004\\u0005\\u0006\\u0007\\b\\t\\n\\u000b\\f\\r\\u000e\\u000f\\u0010\\u0011\\u0012\\u0013\\u0014\\u0015\\u0016\\u0017\\u0018\\u0019\\u001a\\u001b\\u001c\\u001d\\u001e\\u001f !\\\"#¥%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\\\]^_`abcdefghijklmnopqrstuvwxyz{|}‾��������������������������������������������������������������������������������������������������������������������������������\"\n },\n \"iso646jp\": {\n \"type\": \"_sbcs\",\n \"chars\": \"\\u0000\\u0001\\u0002\\u0003\\u0004\\u0005\\u0006\\u0007\\b\\t\\n\\u000b\\f\\r\\u000e\\u000f\\u0010\\u0011\\u0012\\u0013\\u0014\\u0015\\u0016\\u0017\\u0018\\u0019\\u001a\\u001b\\u001c\\u001d\\u001e\\u001f !\\\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[¥]^_`abcdefghijklmnopqrstuvwxyz{|}‾��������������������������������������������������������������������������������������������������������������������������������\"\n },\n \"hproman8\": {\n \"type\": \"_sbcs\",\n \"chars\": \"€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ÀÂÈÊËÎÏ´ˋˆ¨˜ÙÛ₤¯Ýý°ÇçÑñ¡¿¤£¥§ƒ¢âêôûáéóúàèòùäëöüÅîØÆåíøæÄìÖÜÉïßÔÁÃãÐðÍÌÓÒÕõŠšÚŸÿÞþ·µ¶¾—¼½ªº«■»±�\"\n },\n \"macintosh\": {\n \"type\": \"_sbcs\",\n \"chars\": \"ÄÅÇÉÑÖÜáàâäãåçéèêëíìîïñóòôöõúùûü†°¢£§•¶ß®©™´¨≠ÆØ∞±≤≥¥µ∂∑∏π∫ªºΩæø¿¡¬√ƒ≈∆«»… ÀÃÕŒœ–—“”‘’÷◊ÿŸ⁄¤‹›fifl‡·‚„‰ÂÊÁËÈÍÎÏÌÓÔ�ÒÚÛÙıˆ˜¯˘˙˚¸˝˛ˇ\"\n },\n \"ascii\": {\n \"type\": \"_sbcs\",\n \"chars\": \"��������������������������������������������������������������������������������������������������������������������������������\"\n },\n \"tis620\": {\n \"type\": \"_sbcs\",\n \"chars\": \"���������������������������������กขฃคฅฆงจฉชซฌญฎฏฐฑฒณดตถทธนบปผฝพฟภมยรฤลฦวศษสหฬอฮฯะัาำิีึืฺุู����฿เแโใไๅๆ็่้๊๋์ํ๎๏๐๑๒๓๔๕๖๗๘๙๚๛����\"\n }\n}","\"use strict\";\nvar Buffer = require(\"safer-buffer\").Buffer;\n\n// Multibyte codec. In this scheme, a character is represented by 1 or more bytes.\n// Our codec supports UTF-16 surrogates, extensions for GB18030 and unicode sequences.\n// To save memory and loading time, we read table files only when requested.\n\nexports._dbcs = DBCSCodec;\n\nvar UNASSIGNED = -1,\n GB18030_CODE = -2,\n SEQ_START = -10,\n NODE_START = -1000,\n UNASSIGNED_NODE = new Array(0x100),\n DEF_CHAR = -1;\n\nfor (var i = 0; i < 0x100; i++)\n UNASSIGNED_NODE[i] = UNASSIGNED;\n\n\n// Class DBCSCodec reads and initializes mapping tables.\nfunction DBCSCodec(codecOptions, iconv) {\n this.encodingName = codecOptions.encodingName;\n if (!codecOptions)\n throw new Error(\"DBCS codec is called without the data.\")\n if (!codecOptions.table)\n throw new Error(\"Encoding '\" + this.encodingName + \"' has no data.\");\n\n // Load tables.\n var mappingTable = codecOptions.table();\n\n\n // Decode tables: MBCS -> Unicode.\n\n // decodeTables is a trie, encoded as an array of arrays of integers. Internal arrays are trie nodes and all have len = 256.\n // Trie root is decodeTables[0].\n // Values: >= 0 -> unicode character code. can be > 0xFFFF\n // == UNASSIGNED -> unknown/unassigned sequence.\n // == GB18030_CODE -> this is the end of a GB18030 4-byte sequence.\n // <= NODE_START -> index of the next node in our trie to process next byte.\n // <= SEQ_START -> index of the start of a character code sequence, in decodeTableSeq.\n this.decodeTables = [];\n this.decodeTables[0] = UNASSIGNED_NODE.slice(0); // Create root node.\n\n // Sometimes a MBCS char corresponds to a sequence of unicode chars. We store them as arrays of integers here. \n this.decodeTableSeq = [];\n\n // Actual mapping tables consist of chunks. Use them to fill up decode tables.\n for (var i = 0; i < mappingTable.length; i++)\n this._addDecodeChunk(mappingTable[i]);\n\n this.defaultCharUnicode = iconv.defaultCharUnicode;\n\n \n // Encode tables: Unicode -> DBCS.\n\n // `encodeTable` is array mapping from unicode char to encoded char. All its values are integers for performance.\n // Because it can be sparse, it is represented as array of buckets by 256 chars each. Bucket can be null.\n // Values: >= 0 -> it is a normal char. Write the value (if <=256 then 1 byte, if <=65536 then 2 bytes, etc.).\n // == UNASSIGNED -> no conversion found. Output a default char.\n // <= SEQ_START -> it's an index in encodeTableSeq, see below. The character starts a sequence.\n this.encodeTable = [];\n \n // `encodeTableSeq` is used when a sequence of unicode characters is encoded as a single code. We use a tree of\n // objects where keys correspond to characters in sequence and leafs are the encoded dbcs values. A special DEF_CHAR key\n // means end of sequence (needed when one sequence is a strict subsequence of another).\n // Objects are kept separately from encodeTable to increase performance.\n this.encodeTableSeq = [];\n\n // Some chars can be decoded, but need not be encoded.\n var skipEncodeChars = {};\n if (codecOptions.encodeSkipVals)\n for (var i = 0; i < codecOptions.encodeSkipVals.length; i++) {\n var val = codecOptions.encodeSkipVals[i];\n if (typeof val === 'number')\n skipEncodeChars[val] = true;\n else\n for (var j = val.from; j <= val.to; j++)\n skipEncodeChars[j] = true;\n }\n \n // Use decode trie to recursively fill out encode tables.\n this._fillEncodeTable(0, 0, skipEncodeChars);\n\n // Add more encoding pairs when needed.\n if (codecOptions.encodeAdd) {\n for (var uChar in codecOptions.encodeAdd)\n if (Object.prototype.hasOwnProperty.call(codecOptions.encodeAdd, uChar))\n this._setEncodeChar(uChar.charCodeAt(0), codecOptions.encodeAdd[uChar]);\n }\n\n this.defCharSB = this.encodeTable[0][iconv.defaultCharSingleByte.charCodeAt(0)];\n if (this.defCharSB === UNASSIGNED) this.defCharSB = this.encodeTable[0]['?'];\n if (this.defCharSB === UNASSIGNED) this.defCharSB = \"?\".charCodeAt(0);\n\n\n // Load & create GB18030 tables when needed.\n if (typeof codecOptions.gb18030 === 'function') {\n this.gb18030 = codecOptions.gb18030(); // Load GB18030 ranges.\n\n // Add GB18030 decode tables.\n var thirdByteNodeIdx = this.decodeTables.length;\n var thirdByteNode = this.decodeTables[thirdByteNodeIdx] = UNASSIGNED_NODE.slice(0);\n\n var fourthByteNodeIdx = this.decodeTables.length;\n var fourthByteNode = this.decodeTables[fourthByteNodeIdx] = UNASSIGNED_NODE.slice(0);\n\n for (var i = 0x81; i <= 0xFE; i++) {\n var secondByteNodeIdx = NODE_START - this.decodeTables[0][i];\n var secondByteNode = this.decodeTables[secondByteNodeIdx];\n for (var j = 0x30; j <= 0x39; j++)\n secondByteNode[j] = NODE_START - thirdByteNodeIdx;\n }\n for (var i = 0x81; i <= 0xFE; i++)\n thirdByteNode[i] = NODE_START - fourthByteNodeIdx;\n for (var i = 0x30; i <= 0x39; i++)\n fourthByteNode[i] = GB18030_CODE\n } \n}\n\nDBCSCodec.prototype.encoder = DBCSEncoder;\nDBCSCodec.prototype.decoder = DBCSDecoder;\n\n// Decoder helpers\nDBCSCodec.prototype._getDecodeTrieNode = function(addr) {\n var bytes = [];\n for (; addr > 0; addr >>= 8)\n bytes.push(addr & 0xFF);\n if (bytes.length == 0)\n bytes.push(0);\n\n var node = this.decodeTables[0];\n for (var i = bytes.length-1; i > 0; i--) { // Traverse nodes deeper into the trie.\n var val = node[bytes[i]];\n\n if (val == UNASSIGNED) { // Create new node.\n node[bytes[i]] = NODE_START - this.decodeTables.length;\n this.decodeTables.push(node = UNASSIGNED_NODE.slice(0));\n }\n else if (val <= NODE_START) { // Existing node.\n node = this.decodeTables[NODE_START - val];\n }\n else\n throw new Error(\"Overwrite byte in \" + this.encodingName + \", addr: \" + addr.toString(16));\n }\n return node;\n}\n\n\nDBCSCodec.prototype._addDecodeChunk = function(chunk) {\n // First element of chunk is the hex mbcs code where we start.\n var curAddr = parseInt(chunk[0], 16);\n\n // Choose the decoding node where we'll write our chars.\n var writeTable = this._getDecodeTrieNode(curAddr);\n curAddr = curAddr & 0xFF;\n\n // Write all other elements of the chunk to the table.\n for (var k = 1; k < chunk.length; k++) {\n var part = chunk[k];\n if (typeof part === \"string\") { // String, write as-is.\n for (var l = 0; l < part.length;) {\n var code = part.charCodeAt(l++);\n if (0xD800 <= code && code < 0xDC00) { // Decode surrogate\n var codeTrail = part.charCodeAt(l++);\n if (0xDC00 <= codeTrail && codeTrail < 0xE000)\n writeTable[curAddr++] = 0x10000 + (code - 0xD800) * 0x400 + (codeTrail - 0xDC00);\n else\n throw new Error(\"Incorrect surrogate pair in \" + this.encodingName + \" at chunk \" + chunk[0]);\n }\n else if (0x0FF0 < code && code <= 0x0FFF) { // Character sequence (our own encoding used)\n var len = 0xFFF - code + 2;\n var seq = [];\n for (var m = 0; m < len; m++)\n seq.push(part.charCodeAt(l++)); // Simple variation: don't support surrogates or subsequences in seq.\n\n writeTable[curAddr++] = SEQ_START - this.decodeTableSeq.length;\n this.decodeTableSeq.push(seq);\n }\n else\n writeTable[curAddr++] = code; // Basic char\n }\n } \n else if (typeof part === \"number\") { // Integer, meaning increasing sequence starting with prev character.\n var charCode = writeTable[curAddr - 1] + 1;\n for (var l = 0; l < part; l++)\n writeTable[curAddr++] = charCode++;\n }\n else\n throw new Error(\"Incorrect type '\" + typeof part + \"' given in \" + this.encodingName + \" at chunk \" + chunk[0]);\n }\n if (curAddr > 0xFF)\n throw new Error(\"Incorrect chunk in \" + this.encodingName + \" at addr \" + chunk[0] + \": too long\" + curAddr);\n}\n\n// Encoder helpers\nDBCSCodec.prototype._getEncodeBucket = function(uCode) {\n var high = uCode >> 8; // This could be > 0xFF because of astral characters.\n if (this.encodeTable[high] === undefined)\n this.encodeTable[high] = UNASSIGNED_NODE.slice(0); // Create bucket on demand.\n return this.encodeTable[high];\n}\n\nDBCSCodec.prototype._setEncodeChar = function(uCode, dbcsCode) {\n var bucket = this._getEncodeBucket(uCode);\n var low = uCode & 0xFF;\n if (bucket[low] <= SEQ_START)\n this.encodeTableSeq[SEQ_START-bucket[low]][DEF_CHAR] = dbcsCode; // There's already a sequence, set a single-char subsequence of it.\n else if (bucket[low] == UNASSIGNED)\n bucket[low] = dbcsCode;\n}\n\nDBCSCodec.prototype._setEncodeSequence = function(seq, dbcsCode) {\n \n // Get the root of character tree according to first character of the sequence.\n var uCode = seq[0];\n var bucket = this._getEncodeBucket(uCode);\n var low = uCode & 0xFF;\n\n var node;\n if (bucket[low] <= SEQ_START) {\n // There's already a sequence with - use it.\n node = this.encodeTableSeq[SEQ_START-bucket[low]];\n }\n else {\n // There was no sequence object - allocate a new one.\n node = {};\n if (bucket[low] !== UNASSIGNED) node[DEF_CHAR] = bucket[low]; // If a char was set before - make it a single-char subsequence.\n bucket[low] = SEQ_START - this.encodeTableSeq.length;\n this.encodeTableSeq.push(node);\n }\n\n // Traverse the character tree, allocating new nodes as needed.\n for (var j = 1; j < seq.length-1; j++) {\n var oldVal = node[uCode];\n if (typeof oldVal === 'object')\n node = oldVal;\n else {\n node = node[uCode] = {}\n if (oldVal !== undefined)\n node[DEF_CHAR] = oldVal\n }\n }\n\n // Set the leaf to given dbcsCode.\n uCode = seq[seq.length-1];\n node[uCode] = dbcsCode;\n}\n\nDBCSCodec.prototype._fillEncodeTable = function(nodeIdx, prefix, skipEncodeChars) {\n var node = this.decodeTables[nodeIdx];\n for (var i = 0; i < 0x100; i++) {\n var uCode = node[i];\n var mbCode = prefix + i;\n if (skipEncodeChars[mbCode])\n continue;\n\n if (uCode >= 0)\n this._setEncodeChar(uCode, mbCode);\n else if (uCode <= NODE_START)\n this._fillEncodeTable(NODE_START - uCode, mbCode << 8, skipEncodeChars);\n else if (uCode <= SEQ_START)\n this._setEncodeSequence(this.decodeTableSeq[SEQ_START - uCode], mbCode);\n }\n}\n\n\n\n// == Encoder ==================================================================\n\nfunction DBCSEncoder(options, codec) {\n // Encoder state\n this.leadSurrogate = -1;\n this.seqObj = undefined;\n \n // Static data\n this.encodeTable = codec.encodeTable;\n this.encodeTableSeq = codec.encodeTableSeq;\n this.defaultCharSingleByte = codec.defCharSB;\n this.gb18030 = codec.gb18030;\n}\n\nDBCSEncoder.prototype.write = function(str) {\n var newBuf = Buffer.alloc(str.length * (this.gb18030 ? 4 : 3)),\n leadSurrogate = this.leadSurrogate,\n seqObj = this.seqObj, nextChar = -1,\n i = 0, j = 0;\n\n while (true) {\n // 0. Get next character.\n if (nextChar === -1) {\n if (i == str.length) break;\n var uCode = str.charCodeAt(i++);\n }\n else {\n var uCode = nextChar;\n nextChar = -1; \n }\n\n // 1. Handle surrogates.\n if (0xD800 <= uCode && uCode < 0xE000) { // Char is one of surrogates.\n if (uCode < 0xDC00) { // We've got lead surrogate.\n if (leadSurrogate === -1) {\n leadSurrogate = uCode;\n continue;\n } else {\n leadSurrogate = uCode;\n // Double lead surrogate found.\n uCode = UNASSIGNED;\n }\n } else { // We've got trail surrogate.\n if (leadSurrogate !== -1) {\n uCode = 0x10000 + (leadSurrogate - 0xD800) * 0x400 + (uCode - 0xDC00);\n leadSurrogate = -1;\n } else {\n // Incomplete surrogate pair - only trail surrogate found.\n uCode = UNASSIGNED;\n }\n \n }\n }\n else if (leadSurrogate !== -1) {\n // Incomplete surrogate pair - only lead surrogate found.\n nextChar = uCode; uCode = UNASSIGNED; // Write an error, then current char.\n leadSurrogate = -1;\n }\n\n // 2. Convert uCode character.\n var dbcsCode = UNASSIGNED;\n if (seqObj !== undefined && uCode != UNASSIGNED) { // We are in the middle of the sequence\n var resCode = seqObj[uCode];\n if (typeof resCode === 'object') { // Sequence continues.\n seqObj = resCode;\n continue;\n\n } else if (typeof resCode == 'number') { // Sequence finished. Write it.\n dbcsCode = resCode;\n\n } else if (resCode == undefined) { // Current character is not part of the sequence.\n\n // Try default character for this sequence\n resCode = seqObj[DEF_CHAR];\n if (resCode !== undefined) {\n dbcsCode = resCode; // Found. Write it.\n nextChar = uCode; // Current character will be written too in the next iteration.\n\n } else {\n // TODO: What if we have no default? (resCode == undefined)\n // Then, we should write first char of the sequence as-is and try the rest recursively.\n // Didn't do it for now because no encoding has this situation yet.\n // Currently, just skip the sequence and write current char.\n }\n }\n seqObj = undefined;\n }\n else if (uCode >= 0) { // Regular character\n var subtable = this.encodeTable[uCode >> 8];\n if (subtable !== undefined)\n dbcsCode = subtable[uCode & 0xFF];\n \n if (dbcsCode <= SEQ_START) { // Sequence start\n seqObj = this.encodeTableSeq[SEQ_START-dbcsCode];\n continue;\n }\n\n if (dbcsCode == UNASSIGNED && this.gb18030) {\n // Use GB18030 algorithm to find character(s) to write.\n var idx = findIdx(this.gb18030.uChars, uCode);\n if (idx != -1) {\n var dbcsCode = this.gb18030.gbChars[idx] + (uCode - this.gb18030.uChars[idx]);\n newBuf[j++] = 0x81 + Math.floor(dbcsCode / 12600); dbcsCode = dbcsCode % 12600;\n newBuf[j++] = 0x30 + Math.floor(dbcsCode / 1260); dbcsCode = dbcsCode % 1260;\n newBuf[j++] = 0x81 + Math.floor(dbcsCode / 10); dbcsCode = dbcsCode % 10;\n newBuf[j++] = 0x30 + dbcsCode;\n continue;\n }\n }\n }\n\n // 3. Write dbcsCode character.\n if (dbcsCode === UNASSIGNED)\n dbcsCode = this.defaultCharSingleByte;\n \n if (dbcsCode < 0x100) {\n newBuf[j++] = dbcsCode;\n }\n else if (dbcsCode < 0x10000) {\n newBuf[j++] = dbcsCode >> 8; // high byte\n newBuf[j++] = dbcsCode & 0xFF; // low byte\n }\n else {\n newBuf[j++] = dbcsCode >> 16;\n newBuf[j++] = (dbcsCode >> 8) & 0xFF;\n newBuf[j++] = dbcsCode & 0xFF;\n }\n }\n\n this.seqObj = seqObj;\n this.leadSurrogate = leadSurrogate;\n return newBuf.slice(0, j);\n}\n\nDBCSEncoder.prototype.end = function() {\n if (this.leadSurrogate === -1 && this.seqObj === undefined)\n return; // All clean. Most often case.\n\n var newBuf = Buffer.alloc(10), j = 0;\n\n if (this.seqObj) { // We're in the sequence.\n var dbcsCode = this.seqObj[DEF_CHAR];\n if (dbcsCode !== undefined) { // Write beginning of the sequence.\n if (dbcsCode < 0x100) {\n newBuf[j++] = dbcsCode;\n }\n else {\n newBuf[j++] = dbcsCode >> 8; // high byte\n newBuf[j++] = dbcsCode & 0xFF; // low byte\n }\n } else {\n // See todo above.\n }\n this.seqObj = undefined;\n }\n\n if (this.leadSurrogate !== -1) {\n // Incomplete surrogate pair - only lead surrogate found.\n newBuf[j++] = this.defaultCharSingleByte;\n this.leadSurrogate = -1;\n }\n \n return newBuf.slice(0, j);\n}\n\n// Export for testing\nDBCSEncoder.prototype.findIdx = findIdx;\n\n\n// == Decoder ==================================================================\n\nfunction DBCSDecoder(options, codec) {\n // Decoder state\n this.nodeIdx = 0;\n this.prevBuf = Buffer.alloc(0);\n\n // Static data\n this.decodeTables = codec.decodeTables;\n this.decodeTableSeq = codec.decodeTableSeq;\n this.defaultCharUnicode = codec.defaultCharUnicode;\n this.gb18030 = codec.gb18030;\n}\n\nDBCSDecoder.prototype.write = function(buf) {\n var newBuf = Buffer.alloc(buf.length*2),\n nodeIdx = this.nodeIdx, \n prevBuf = this.prevBuf, prevBufOffset = this.prevBuf.length,\n seqStart = -this.prevBuf.length, // idx of the start of current parsed sequence.\n uCode;\n\n if (prevBufOffset > 0) // Make prev buf overlap a little to make it easier to slice later.\n prevBuf = Buffer.concat([prevBuf, buf.slice(0, 10)]);\n \n for (var i = 0, j = 0; i < buf.length; i++) {\n var curByte = (i >= 0) ? buf[i] : prevBuf[i + prevBufOffset];\n\n // Lookup in current trie node.\n var uCode = this.decodeTables[nodeIdx][curByte];\n\n if (uCode >= 0) { \n // Normal character, just use it.\n }\n else if (uCode === UNASSIGNED) { // Unknown char.\n // TODO: Callback with seq.\n //var curSeq = (seqStart >= 0) ? buf.slice(seqStart, i+1) : prevBuf.slice(seqStart + prevBufOffset, i+1 + prevBufOffset);\n i = seqStart; // Try to parse again, after skipping first byte of the sequence ('i' will be incremented by 'for' cycle).\n uCode = this.defaultCharUnicode.charCodeAt(0);\n }\n else if (uCode === GB18030_CODE) {\n var curSeq = (seqStart >= 0) ? buf.slice(seqStart, i+1) : prevBuf.slice(seqStart + prevBufOffset, i+1 + prevBufOffset);\n var ptr = (curSeq[0]-0x81)*12600 + (curSeq[1]-0x30)*1260 + (curSeq[2]-0x81)*10 + (curSeq[3]-0x30);\n var idx = findIdx(this.gb18030.gbChars, ptr);\n uCode = this.gb18030.uChars[idx] + ptr - this.gb18030.gbChars[idx];\n }\n else if (uCode <= NODE_START) { // Go to next trie node.\n nodeIdx = NODE_START - uCode;\n continue;\n }\n else if (uCode <= SEQ_START) { // Output a sequence of chars.\n var seq = this.decodeTableSeq[SEQ_START - uCode];\n for (var k = 0; k < seq.length - 1; k++) {\n uCode = seq[k];\n newBuf[j++] = uCode & 0xFF;\n newBuf[j++] = uCode >> 8;\n }\n uCode = seq[seq.length-1];\n }\n else\n throw new Error(\"iconv-lite internal error: invalid decoding table value \" + uCode + \" at \" + nodeIdx + \"/\" + curByte);\n\n // Write the character to buffer, handling higher planes using surrogate pair.\n if (uCode > 0xFFFF) { \n uCode -= 0x10000;\n var uCodeLead = 0xD800 + Math.floor(uCode / 0x400);\n newBuf[j++] = uCodeLead & 0xFF;\n newBuf[j++] = uCodeLead >> 8;\n\n uCode = 0xDC00 + uCode % 0x400;\n }\n newBuf[j++] = uCode & 0xFF;\n newBuf[j++] = uCode >> 8;\n\n // Reset trie node.\n nodeIdx = 0; seqStart = i+1;\n }\n\n this.nodeIdx = nodeIdx;\n this.prevBuf = (seqStart >= 0) ? buf.slice(seqStart) : prevBuf.slice(seqStart + prevBufOffset);\n return newBuf.slice(0, j).toString('ucs2');\n}\n\nDBCSDecoder.prototype.end = function() {\n var ret = '';\n\n // Try to parse all remaining chars.\n while (this.prevBuf.length > 0) {\n // Skip 1 character in the buffer.\n ret += this.defaultCharUnicode;\n var buf = this.prevBuf.slice(1);\n\n // Parse remaining as usual.\n this.prevBuf = Buffer.alloc(0);\n this.nodeIdx = 0;\n if (buf.length > 0)\n ret += this.write(buf);\n }\n\n this.nodeIdx = 0;\n return ret;\n}\n\n// Binary search for GB18030. Returns largest i such that table[i] <= val.\nfunction findIdx(table, val) {\n if (table[0] > val)\n return -1;\n\n var l = 0, r = table.length;\n while (l < r-1) { // always table[l] <= val < table[r]\n var mid = l + Math.floor((r-l+1)/2);\n if (table[mid] <= val)\n l = mid;\n else\n r = mid;\n }\n return l;\n}\n\n","\"use strict\";\n\n// Description of supported double byte encodings and aliases.\n// Tables are not require()-d until they are needed to speed up library load.\n// require()-s are direct to support Browserify.\n\nmodule.exports = {\n \n // == Japanese/ShiftJIS ====================================================\n // All japanese encodings are based on JIS X set of standards:\n // JIS X 0201 - Single-byte encoding of ASCII + ¥ + Kana chars at 0xA1-0xDF.\n // JIS X 0208 - Main set of 6879 characters, placed in 94x94 plane, to be encoded by 2 bytes. \n // Has several variations in 1978, 1983, 1990 and 1997.\n // JIS X 0212 - Supplementary plane of 6067 chars in 94x94 plane. 1990. Effectively dead.\n // JIS X 0213 - Extension and modern replacement of 0208 and 0212. Total chars: 11233.\n // 2 planes, first is superset of 0208, second - revised 0212.\n // Introduced in 2000, revised 2004. Some characters are in Unicode Plane 2 (0x2xxxx)\n\n // Byte encodings are:\n // * Shift_JIS: Compatible with 0201, uses not defined chars in top half as lead bytes for double-byte\n // encoding of 0208. Lead byte ranges: 0x81-0x9F, 0xE0-0xEF; Trail byte ranges: 0x40-0x7E, 0x80-0x9E, 0x9F-0xFC.\n // Windows CP932 is a superset of Shift_JIS. Some companies added more chars, notably KDDI.\n // * EUC-JP: Up to 3 bytes per character. Used mostly on *nixes.\n // 0x00-0x7F - lower part of 0201\n // 0x8E, 0xA1-0xDF - upper part of 0201\n // (0xA1-0xFE)x2 - 0208 plane (94x94).\n // 0x8F, (0xA1-0xFE)x2 - 0212 plane (94x94).\n // * JIS X 208: 7-bit, direct encoding of 0208. Byte ranges: 0x21-0x7E (94 values). Uncommon.\n // Used as-is in ISO2022 family.\n // * ISO2022-JP: Stateful encoding, with escape sequences to switch between ASCII, \n // 0201-1976 Roman, 0208-1978, 0208-1983.\n // * ISO2022-JP-1: Adds esc seq for 0212-1990.\n // * ISO2022-JP-2: Adds esc seq for GB2313-1980, KSX1001-1992, ISO8859-1, ISO8859-7.\n // * ISO2022-JP-3: Adds esc seq for 0201-1976 Kana set, 0213-2000 Planes 1, 2.\n // * ISO2022-JP-2004: Adds 0213-2004 Plane 1.\n //\n // After JIS X 0213 appeared, Shift_JIS-2004, EUC-JISX0213 and ISO2022-JP-2004 followed, with just changing the planes.\n //\n // Overall, it seems that it's a mess :( http://www8.plala.or.jp/tkubota1/unicode-symbols-map2.html\n\n 'shiftjis': {\n type: '_dbcs',\n table: function() { return require('./tables/shiftjis.json') },\n encodeAdd: {'\\u00a5': 0x5C, '\\u203E': 0x7E},\n encodeSkipVals: [{from: 0xED40, to: 0xF940}],\n },\n 'csshiftjis': 'shiftjis',\n 'mskanji': 'shiftjis',\n 'sjis': 'shiftjis',\n 'windows31j': 'shiftjis',\n 'ms31j': 'shiftjis',\n 'xsjis': 'shiftjis',\n 'windows932': 'shiftjis',\n 'ms932': 'shiftjis',\n '932': 'shiftjis',\n 'cp932': 'shiftjis',\n\n 'eucjp': {\n type: '_dbcs',\n table: function() { return require('./tables/eucjp.json') },\n encodeAdd: {'\\u00a5': 0x5C, '\\u203E': 0x7E},\n },\n\n // TODO: KDDI extension to Shift_JIS\n // TODO: IBM CCSID 942 = CP932, but F0-F9 custom chars and other char changes.\n // TODO: IBM CCSID 943 = Shift_JIS = CP932 with original Shift_JIS lower 128 chars.\n\n\n // == Chinese/GBK ==========================================================\n // http://en.wikipedia.org/wiki/GBK\n // We mostly implement W3C recommendation: https://www.w3.org/TR/encoding/#gbk-encoder\n\n // Oldest GB2312 (1981, ~7600 chars) is a subset of CP936\n 'gb2312': 'cp936',\n 'gb231280': 'cp936',\n 'gb23121980': 'cp936',\n 'csgb2312': 'cp936',\n 'csiso58gb231280': 'cp936',\n 'euccn': 'cp936',\n\n // Microsoft's CP936 is a subset and approximation of GBK.\n 'windows936': 'cp936',\n 'ms936': 'cp936',\n '936': 'cp936',\n 'cp936': {\n type: '_dbcs',\n table: function() { return require('./tables/cp936.json') },\n },\n\n // GBK (~22000 chars) is an extension of CP936 that added user-mapped chars and some other.\n 'gbk': {\n type: '_dbcs',\n table: function() { return require('./tables/cp936.json').concat(require('./tables/gbk-added.json')) },\n },\n 'xgbk': 'gbk',\n 'isoir58': 'gbk',\n\n // GB18030 is an algorithmic extension of GBK.\n // Main source: https://www.w3.org/TR/encoding/#gbk-encoder\n // http://icu-project.org/docs/papers/gb18030.html\n // http://source.icu-project.org/repos/icu/data/trunk/charset/data/xml/gb-18030-2000.xml\n // http://www.khngai.com/chinese/charmap/tblgbk.php?page=0\n 'gb18030': {\n type: '_dbcs',\n table: function() { return require('./tables/cp936.json').concat(require('./tables/gbk-added.json')) },\n gb18030: function() { return require('./tables/gb18030-ranges.json') },\n encodeSkipVals: [0x80],\n encodeAdd: {'€': 0xA2E3},\n },\n\n 'chinese': 'gb18030',\n\n\n // == Korean ===============================================================\n // EUC-KR, KS_C_5601 and KS X 1001 are exactly the same.\n 'windows949': 'cp949',\n 'ms949': 'cp949',\n '949': 'cp949',\n 'cp949': {\n type: '_dbcs',\n table: function() { return require('./tables/cp949.json') },\n },\n\n 'cseuckr': 'cp949',\n 'csksc56011987': 'cp949',\n 'euckr': 'cp949',\n 'isoir149': 'cp949',\n 'korean': 'cp949',\n 'ksc56011987': 'cp949',\n 'ksc56011989': 'cp949',\n 'ksc5601': 'cp949',\n\n\n // == Big5/Taiwan/Hong Kong ================================================\n // There are lots of tables for Big5 and cp950. Please see the following links for history:\n // http://moztw.org/docs/big5/ http://www.haible.de/bruno/charsets/conversion-tables/Big5.html\n // Variations, in roughly number of defined chars:\n // * Windows CP 950: Microsoft variant of Big5. Canonical: http://www.unicode.org/Public/MAPPINGS/VENDORS/MICSFT/WINDOWS/CP950.TXT\n // * Windows CP 951: Microsoft variant of Big5-HKSCS-2001. Seems to be never public. http://me.abelcheung.org/articles/research/what-is-cp951/\n // * Big5-2003 (Taiwan standard) almost superset of cp950.\n // * Unicode-at-on (UAO) / Mozilla 1.8. Falling out of use on the Web. Not supported by other browsers.\n // * Big5-HKSCS (-2001, -2004, -2008). Hong Kong standard. \n // many unicode code points moved from PUA to Supplementary plane (U+2XXXX) over the years.\n // Plus, it has 4 combining sequences.\n // Seems that Mozilla refused to support it for 10 yrs. https://bugzilla.mozilla.org/show_bug.cgi?id=162431 https://bugzilla.mozilla.org/show_bug.cgi?id=310299\n // because big5-hkscs is the only encoding to include astral characters in non-algorithmic way.\n // Implementations are not consistent within browsers; sometimes labeled as just big5.\n // MS Internet Explorer switches from big5 to big5-hkscs when a patch applied.\n // Great discussion & recap of what's going on https://bugzilla.mozilla.org/show_bug.cgi?id=912470#c31\n // In the encoder, it might make sense to support encoding old PUA mappings to Big5 bytes seq-s.\n // Official spec: http://www.ogcio.gov.hk/en/business/tech_promotion/ccli/terms/doc/2003cmp_2008.txt\n // http://www.ogcio.gov.hk/tc/business/tech_promotion/ccli/terms/doc/hkscs-2008-big5-iso.txt\n // \n // Current understanding of how to deal with Big5(-HKSCS) is in the Encoding Standard, http://encoding.spec.whatwg.org/#big5-encoder\n // Unicode mapping (http://www.unicode.org/Public/MAPPINGS/OBSOLETE/EASTASIA/OTHER/BIG5.TXT) is said to be wrong.\n\n 'windows950': 'cp950',\n 'ms950': 'cp950',\n '950': 'cp950',\n 'cp950': {\n type: '_dbcs',\n table: function() { return require('./tables/cp950.json') },\n },\n\n // Big5 has many variations and is an extension of cp950. We use Encoding Standard's as a consensus.\n 'big5': 'big5hkscs',\n 'big5hkscs': {\n type: '_dbcs',\n table: function() { return require('./tables/cp950.json').concat(require('./tables/big5-added.json')) },\n encodeSkipVals: [0xa2cc],\n },\n\n 'cnbig5': 'big5hkscs',\n 'csbig5': 'big5hkscs',\n 'xxbig5': 'big5hkscs',\n};\n","\"use strict\";\n\n// Update this array if you add/rename/remove files in this directory.\n// We support Browserify by skipping automatic module discovery and requiring modules directly.\nvar modules = [\n require(\"./internal\"),\n require(\"./utf16\"),\n require(\"./utf7\"),\n require(\"./sbcs-codec\"),\n require(\"./sbcs-data\"),\n require(\"./sbcs-data-generated\"),\n require(\"./dbcs-codec\"),\n require(\"./dbcs-data\"),\n];\n\n// Put all encoding/alias/codec definitions to single object and export it. \nfor (var i = 0; i < modules.length; i++) {\n var module = modules[i];\n for (var enc in module)\n if (Object.prototype.hasOwnProperty.call(module, enc))\n exports[enc] = module[enc];\n}\n","\"use strict\";\n\n// Some environments don't have global Buffer (e.g. React Native).\n// Solution would be installing npm modules \"buffer\" and \"stream\" explicitly.\nvar Buffer = require(\"safer-buffer\").Buffer;\n\nvar bomHandling = require(\"./bom-handling\"),\n iconv = module.exports;\n\n// All codecs and aliases are kept here, keyed by encoding name/alias.\n// They are lazy loaded in `iconv.getCodec` from `encodings/index.js`.\niconv.encodings = null;\n\n// Characters emitted in case of error.\niconv.defaultCharUnicode = '�';\niconv.defaultCharSingleByte = '?';\n\n// Public API.\niconv.encode = function encode(str, encoding, options) {\n str = \"\" + (str || \"\"); // Ensure string.\n\n var encoder = iconv.getEncoder(encoding, options);\n\n var res = encoder.write(str);\n var trail = encoder.end();\n \n return (trail && trail.length > 0) ? Buffer.concat([res, trail]) : res;\n}\n\niconv.decode = function decode(buf, encoding, options) {\n if (typeof buf === 'string') {\n if (!iconv.skipDecodeWarning) {\n console.error('Iconv-lite warning: decode()-ing strings is deprecated. Refer to https://github.com/ashtuchkin/iconv-lite/wiki/Use-Buffers-when-decoding');\n iconv.skipDecodeWarning = true;\n }\n\n buf = Buffer.from(\"\" + (buf || \"\"), \"binary\"); // Ensure buffer.\n }\n\n var decoder = iconv.getDecoder(encoding, options);\n\n var res = decoder.write(buf);\n var trail = decoder.end();\n\n return trail ? (res + trail) : res;\n}\n\niconv.encodingExists = function encodingExists(enc) {\n try {\n iconv.getCodec(enc);\n return true;\n } catch (e) {\n return false;\n }\n}\n\n// Legacy aliases to convert functions\niconv.toEncoding = iconv.encode;\niconv.fromEncoding = iconv.decode;\n\n// Search for a codec in iconv.encodings. Cache codec data in iconv._codecDataCache.\niconv._codecDataCache = {};\niconv.getCodec = function getCodec(encoding) {\n if (!iconv.encodings)\n iconv.encodings = require(\"../encodings\"); // Lazy load all encoding definitions.\n \n // Canonicalize encoding name: strip all non-alphanumeric chars and appended year.\n var enc = iconv._canonicalizeEncoding(encoding);\n\n // Traverse iconv.encodings to find actual codec.\n var codecOptions = {};\n while (true) {\n var codec = iconv._codecDataCache[enc];\n if (codec)\n return codec;\n\n var codecDef = iconv.encodings[enc];\n\n switch (typeof codecDef) {\n case \"string\": // Direct alias to other encoding.\n enc = codecDef;\n break;\n\n case \"object\": // Alias with options. Can be layered.\n for (var key in codecDef)\n codecOptions[key] = codecDef[key];\n\n if (!codecOptions.encodingName)\n codecOptions.encodingName = enc;\n \n enc = codecDef.type;\n break;\n\n case \"function\": // Codec itself.\n if (!codecOptions.encodingName)\n codecOptions.encodingName = enc;\n\n // The codec function must load all tables and return object with .encoder and .decoder methods.\n // It'll be called only once (for each different options object).\n codec = new codecDef(codecOptions, iconv);\n\n iconv._codecDataCache[codecOptions.encodingName] = codec; // Save it to be reused later.\n return codec;\n\n default:\n throw new Error(\"Encoding not recognized: '\" + encoding + \"' (searched as: '\"+enc+\"')\");\n }\n }\n}\n\niconv._canonicalizeEncoding = function(encoding) {\n // Canonicalize encoding name: strip all non-alphanumeric chars and appended year.\n return (''+encoding).toLowerCase().replace(/:\\d{4}$|[^0-9a-z]/g, \"\");\n}\n\niconv.getEncoder = function getEncoder(encoding, options) {\n var codec = iconv.getCodec(encoding),\n encoder = new codec.encoder(options, codec);\n\n if (codec.bomAware && options && options.addBOM)\n encoder = new bomHandling.PrependBOM(encoder, options);\n\n return encoder;\n}\n\niconv.getDecoder = function getDecoder(encoding, options) {\n var codec = iconv.getCodec(encoding),\n decoder = new codec.decoder(options, codec);\n\n if (codec.bomAware && !(options && options.stripBOM === false))\n decoder = new bomHandling.StripBOM(decoder, options);\n\n return decoder;\n}\n\n\n// Load extensions in Node. All of them are omitted in Browserify build via 'browser' field in package.json.\nvar nodeVer = typeof process !== 'undefined' && process.versions && process.versions.node;\nif (nodeVer) {\n\n // Load streaming support in Node v0.10+\n var nodeVerArr = nodeVer.split(\".\").map(Number);\n if (nodeVerArr[0] > 0 || nodeVerArr[1] >= 10) {\n require(\"./streams\")(iconv);\n }\n\n // Load Node primitive extensions.\n require(\"./extend-node\")(iconv);\n}\n\nif (\"Ā\" != \"\\u0100\") {\n console.error(\"iconv-lite warning: javascript files use encoding different from utf-8. See https://github.com/ashtuchkin/iconv-lite/wiki/Javascript-source-file-encodings for more info.\");\n}\n","/*!\n * unpipe\n * Copyright(c) 2015 Douglas Christopher Wilson\n * MIT Licensed\n */\n\n'use strict'\n\n/**\n * Module exports.\n * @public\n */\n\nmodule.exports = unpipe\n\n/**\n * Determine if there are Node.js pipe-like data listeners.\n * @private\n */\n\nfunction hasPipeDataListeners(stream) {\n var listeners = stream.listeners('data')\n\n for (var i = 0; i < listeners.length; i++) {\n if (listeners[i].name === 'ondata') {\n return true\n }\n }\n\n return false\n}\n\n/**\n * Unpipe a stream from all destinations.\n *\n * @param {object} stream\n * @public\n */\n\nfunction unpipe(stream) {\n if (!stream) {\n throw new TypeError('argument stream is required')\n }\n\n if (typeof stream.unpipe === 'function') {\n // new-style\n stream.unpipe()\n return\n }\n\n // Node.js 0.8 hack\n if (!hasPipeDataListeners(stream)) {\n return\n }\n\n var listener\n var listeners = stream.listeners('close')\n\n for (var i = 0; i < listeners.length; i++) {\n listener = listeners[i]\n\n if (listener.name !== 'cleanup' && listener.name !== 'onclose') {\n continue\n }\n\n // invoke the listener\n listener.call(stream)\n }\n}\n","/*!\n * raw-body\n * Copyright(c) 2013-2014 Jonathan Ong\n * Copyright(c) 2014-2022 Douglas Christopher Wilson\n * MIT Licensed\n */\n\n'use strict'\n\n/**\n * Module dependencies.\n * @private\n */\n\nvar asyncHooks = tryRequireAsyncHooks()\nvar bytes = require('bytes')\nvar createError = require('http-errors')\nvar iconv = require('iconv-lite')\nvar unpipe = require('unpipe')\n\n/**\n * Module exports.\n * @public\n */\n\nmodule.exports = getRawBody\n\n/**\n * Module variables.\n * @private\n */\n\nvar ICONV_ENCODING_MESSAGE_REGEXP = /^Encoding not recognized: /\n\n/**\n * Get the decoder for a given encoding.\n *\n * @param {string} encoding\n * @private\n */\n\nfunction getDecoder (encoding) {\n if (!encoding) return null\n\n try {\n return iconv.getDecoder(encoding)\n } catch (e) {\n // error getting decoder\n if (!ICONV_ENCODING_MESSAGE_REGEXP.test(e.message)) throw e\n\n // the encoding was not found\n throw createError(415, 'specified encoding unsupported', {\n encoding: encoding,\n type: 'encoding.unsupported'\n })\n }\n}\n\n/**\n * Get the raw body of a stream (typically HTTP).\n *\n * @param {object} stream\n * @param {object|string|function} [options]\n * @param {function} [callback]\n * @public\n */\n\nfunction getRawBody (stream, options, callback) {\n var done = callback\n var opts = options || {}\n\n // light validation\n if (stream === undefined) {\n throw new TypeError('argument stream is required')\n } else if (typeof stream !== 'object' || stream === null || typeof stream.on !== 'function') {\n throw new TypeError('argument stream must be a stream')\n }\n\n if (options === true || typeof options === 'string') {\n // short cut for encoding\n opts = {\n encoding: options\n }\n }\n\n if (typeof options === 'function') {\n done = options\n opts = {}\n }\n\n // validate callback is a function, if provided\n if (done !== undefined && typeof done !== 'function') {\n throw new TypeError('argument callback must be a function')\n }\n\n // require the callback without promises\n if (!done && !global.Promise) {\n throw new TypeError('argument callback is required')\n }\n\n // get encoding\n var encoding = opts.encoding !== true\n ? opts.encoding\n : 'utf-8'\n\n // convert the limit to an integer\n var limit = bytes.parse(opts.limit)\n\n // convert the expected length to an integer\n var length = opts.length != null && !isNaN(opts.length)\n ? parseInt(opts.length, 10)\n : null\n\n if (done) {\n // classic callback style\n return readStream(stream, encoding, length, limit, wrap(done))\n }\n\n return new Promise(function executor (resolve, reject) {\n readStream(stream, encoding, length, limit, function onRead (err, buf) {\n if (err) return reject(err)\n resolve(buf)\n })\n })\n}\n\n/**\n * Halt a stream.\n *\n * @param {Object} stream\n * @private\n */\n\nfunction halt (stream) {\n // unpipe everything from the stream\n unpipe(stream)\n\n // pause stream\n if (typeof stream.pause === 'function') {\n stream.pause()\n }\n}\n\n/**\n * Read the data from the stream.\n *\n * @param {object} stream\n * @param {string} encoding\n * @param {number} length\n * @param {number} limit\n * @param {function} callback\n * @public\n */\n\nfunction readStream (stream, encoding, length, limit, callback) {\n var complete = false\n var sync = true\n\n // check the length and limit options.\n // note: we intentionally leave the stream paused,\n // so users should handle the stream themselves.\n if (limit !== null && length !== null && length > limit) {\n return done(createError(413, 'request entity too large', {\n expected: length,\n length: length,\n limit: limit,\n type: 'entity.too.large'\n }))\n }\n\n // streams1: assert request encoding is buffer.\n // streams2+: assert the stream encoding is buffer.\n // stream._decoder: streams1\n // state.encoding: streams2\n // state.decoder: streams2, specifically < 0.10.6\n var state = stream._readableState\n if (stream._decoder || (state && (state.encoding || state.decoder))) {\n // developer error\n return done(createError(500, 'stream encoding should not be set', {\n type: 'stream.encoding.set'\n }))\n }\n\n if (typeof stream.readable !== 'undefined' && !stream.readable) {\n return done(createError(500, 'stream is not readable', {\n type: 'stream.not.readable'\n }))\n }\n\n var received = 0\n var decoder\n\n try {\n decoder = getDecoder(encoding)\n } catch (err) {\n return done(err)\n }\n\n var buffer = decoder\n ? ''\n : []\n\n // attach listeners\n stream.on('aborted', onAborted)\n stream.on('close', cleanup)\n stream.on('data', onData)\n stream.on('end', onEnd)\n stream.on('error', onEnd)\n\n // mark sync section complete\n sync = false\n\n function done () {\n var args = new Array(arguments.length)\n\n // copy arguments\n for (var i = 0; i < args.length; i++) {\n args[i] = arguments[i]\n }\n\n // mark complete\n complete = true\n\n if (sync) {\n process.nextTick(invokeCallback)\n } else {\n invokeCallback()\n }\n\n function invokeCallback () {\n cleanup()\n\n if (args[0]) {\n // halt the stream on error\n halt(stream)\n }\n\n callback.apply(null, args)\n }\n }\n\n function onAborted () {\n if (complete) return\n\n done(createError(400, 'request aborted', {\n code: 'ECONNABORTED',\n expected: length,\n length: length,\n received: received,\n type: 'request.aborted'\n }))\n }\n\n function onData (chunk) {\n if (complete) return\n\n received += chunk.length\n\n if (limit !== null && received > limit) {\n done(createError(413, 'request entity too large', {\n limit: limit,\n received: received,\n type: 'entity.too.large'\n }))\n } else if (decoder) {\n buffer += decoder.write(chunk)\n } else {\n buffer.push(chunk)\n }\n }\n\n function onEnd (err) {\n if (complete) return\n if (err) return done(err)\n\n if (length !== null && received !== length) {\n done(createError(400, 'request size did not match content length', {\n expected: length,\n length: length,\n received: received,\n type: 'request.size.invalid'\n }))\n } else {\n var string = decoder\n ? buffer + (decoder.end() || '')\n : Buffer.concat(buffer)\n done(null, string)\n }\n }\n\n function cleanup () {\n buffer = null\n\n stream.removeListener('aborted', onAborted)\n stream.removeListener('data', onData)\n stream.removeListener('end', onEnd)\n stream.removeListener('error', onEnd)\n stream.removeListener('close', cleanup)\n }\n}\n\n/**\n * Try to require async_hooks\n * @private\n */\n\nfunction tryRequireAsyncHooks () {\n try {\n return require('async_hooks')\n } catch (e) {\n return {}\n }\n}\n\n/**\n * Wrap function with async resource, if possible.\n * AsyncResource.bind static method backported.\n * @private\n */\n\nfunction wrap (fn) {\n var res\n\n // create anonymous resource\n if (asyncHooks.AsyncResource) {\n res = new asyncHooks.AsyncResource(fn.name || 'bound-anonymous-fn')\n }\n\n // incompatible node.js\n if (!res || !res.runInAsyncScope) {\n return fn\n }\n\n // return bound function\n return res.runInAsyncScope.bind(res, fn, null)\n}\n","/*!\n * ee-first\n * Copyright(c) 2014 Jonathan Ong\n * MIT Licensed\n */\n\n'use strict'\n\n/**\n * Module exports.\n * @public\n */\n\nmodule.exports = first\n\n/**\n * Get the first event in a set of event emitters and event pairs.\n *\n * @param {array} stuff\n * @param {function} done\n * @public\n */\n\nfunction first(stuff, done) {\n if (!Array.isArray(stuff))\n throw new TypeError('arg must be an array of [ee, events...] arrays')\n\n var cleanups = []\n\n for (var i = 0; i < stuff.length; i++) {\n var arr = stuff[i]\n\n if (!Array.isArray(arr) || arr.length < 2)\n throw new TypeError('each array member must be [ee, events...]')\n\n var ee = arr[0]\n\n for (var j = 1; j < arr.length; j++) {\n var event = arr[j]\n var fn = listener(event, callback)\n\n // listen to the event\n ee.on(event, fn)\n // push this listener to the list of cleanups\n cleanups.push({\n ee: ee,\n event: event,\n fn: fn,\n })\n }\n }\n\n function callback() {\n cleanup()\n done.apply(null, arguments)\n }\n\n function cleanup() {\n var x\n for (var i = 0; i < cleanups.length; i++) {\n x = cleanups[i]\n x.ee.removeListener(x.event, x.fn)\n }\n }\n\n function thunk(fn) {\n done = fn\n }\n\n thunk.cancel = cleanup\n\n return thunk\n}\n\n/**\n * Create the event listener.\n * @private\n */\n\nfunction listener(event, done) {\n return function onevent(arg1) {\n var args = new Array(arguments.length)\n var ee = this\n var err = event === 'error'\n ? arg1\n : null\n\n // copy args to prevent arguments escaping scope\n for (var i = 0; i < args.length; i++) {\n args[i] = arguments[i]\n }\n\n done(err, ee, event, args)\n }\n}\n","/*!\n * on-finished\n * Copyright(c) 2013 Jonathan Ong\n * Copyright(c) 2014 Douglas Christopher Wilson\n * MIT Licensed\n */\n\n'use strict'\n\n/**\n * Module exports.\n * @public\n */\n\nmodule.exports = onFinished\nmodule.exports.isFinished = isFinished\n\n/**\n * Module dependencies.\n * @private\n */\n\nvar asyncHooks = tryRequireAsyncHooks()\nvar first = require('ee-first')\n\n/**\n * Variables.\n * @private\n */\n\n/* istanbul ignore next */\nvar defer = typeof setImmediate === 'function'\n ? setImmediate\n : function (fn) { process.nextTick(fn.bind.apply(fn, arguments)) }\n\n/**\n * Invoke callback when the response has finished, useful for\n * cleaning up resources afterwards.\n *\n * @param {object} msg\n * @param {function} listener\n * @return {object}\n * @public\n */\n\nfunction onFinished (msg, listener) {\n if (isFinished(msg) !== false) {\n defer(listener, null, msg)\n return msg\n }\n\n // attach the listener to the message\n attachListener(msg, wrap(listener))\n\n return msg\n}\n\n/**\n * Determine if message is already finished.\n *\n * @param {object} msg\n * @return {boolean}\n * @public\n */\n\nfunction isFinished (msg) {\n var socket = msg.socket\n\n if (typeof msg.finished === 'boolean') {\n // OutgoingMessage\n return Boolean(msg.finished || (socket && !socket.writable))\n }\n\n if (typeof msg.complete === 'boolean') {\n // IncomingMessage\n return Boolean(msg.upgrade || !socket || !socket.readable || (msg.complete && !msg.readable))\n }\n\n // don't know\n return undefined\n}\n\n/**\n * Attach a finished listener to the message.\n *\n * @param {object} msg\n * @param {function} callback\n * @private\n */\n\nfunction attachFinishedListener (msg, callback) {\n var eeMsg\n var eeSocket\n var finished = false\n\n function onFinish (error) {\n eeMsg.cancel()\n eeSocket.cancel()\n\n finished = true\n callback(error)\n }\n\n // finished on first message event\n eeMsg = eeSocket = first([[msg, 'end', 'finish']], onFinish)\n\n function onSocket (socket) {\n // remove listener\n msg.removeListener('socket', onSocket)\n\n if (finished) return\n if (eeMsg !== eeSocket) return\n\n // finished on first socket event\n eeSocket = first([[socket, 'error', 'close']], onFinish)\n }\n\n if (msg.socket) {\n // socket already assigned\n onSocket(msg.socket)\n return\n }\n\n // wait for socket to be assigned\n msg.on('socket', onSocket)\n\n if (msg.socket === undefined) {\n // istanbul ignore next: node.js 0.8 patch\n patchAssignSocket(msg, onSocket)\n }\n}\n\n/**\n * Attach the listener to the message.\n *\n * @param {object} msg\n * @return {function}\n * @private\n */\n\nfunction attachListener (msg, listener) {\n var attached = msg.__onFinished\n\n // create a private single listener with queue\n if (!attached || !attached.queue) {\n attached = msg.__onFinished = createListener(msg)\n attachFinishedListener(msg, attached)\n }\n\n attached.queue.push(listener)\n}\n\n/**\n * Create listener on message.\n *\n * @param {object} msg\n * @return {function}\n * @private\n */\n\nfunction createListener (msg) {\n function listener (err) {\n if (msg.__onFinished === listener) msg.__onFinished = null\n if (!listener.queue) return\n\n var queue = listener.queue\n listener.queue = null\n\n for (var i = 0; i < queue.length; i++) {\n queue[i](err, msg)\n }\n }\n\n listener.queue = []\n\n return listener\n}\n\n/**\n * Patch ServerResponse.prototype.assignSocket for node.js 0.8.\n *\n * @param {ServerResponse} res\n * @param {function} callback\n * @private\n */\n\n// istanbul ignore next: node.js 0.8 patch\nfunction patchAssignSocket (res, callback) {\n var assignSocket = res.assignSocket\n\n if (typeof assignSocket !== 'function') return\n\n // res.on('socket', callback) is broken in 0.8\n res.assignSocket = function _assignSocket (socket) {\n assignSocket.call(this, socket)\n callback(socket)\n }\n}\n\n/**\n * Try to require async_hooks\n * @private\n */\n\nfunction tryRequireAsyncHooks () {\n try {\n return require('async_hooks')\n } catch (e) {\n return {}\n }\n}\n\n/**\n * Wrap function with async resource, if possible.\n * AsyncResource.bind static method backported.\n * @private\n */\n\nfunction wrap (fn) {\n var res\n\n // create anonymous resource\n if (asyncHooks.AsyncResource) {\n res = new asyncHooks.AsyncResource(fn.name || 'bound-anonymous-fn')\n }\n\n // incompatible node.js\n if (!res || !res.runInAsyncScope) {\n return fn\n }\n\n // return bound function\n return res.runInAsyncScope.bind(res, fn, null)\n}\n","/*!\n * body-parser\n * Copyright(c) 2014-2015 Douglas Christopher Wilson\n * MIT Licensed\n */\n\n'use strict'\n\n/**\n * Module dependencies.\n * @private\n */\n\nvar createError = require('http-errors')\nvar destroy = require('destroy')\nvar getBody = require('raw-body')\nvar iconv = require('iconv-lite')\nvar onFinished = require('on-finished')\nvar unpipe = require('unpipe')\nvar zlib = require('zlib')\n\n/**\n * Module exports.\n */\n\nmodule.exports = read\n\n/**\n * Read a request into a buffer and parse.\n *\n * @param {object} req\n * @param {object} res\n * @param {function} next\n * @param {function} parse\n * @param {function} debug\n * @param {object} options\n * @private\n */\n\nfunction read (req, res, next, parse, debug, options) {\n var length\n var opts = options\n var stream\n\n // flag as parsed\n req._body = true\n\n // read options\n var encoding = opts.encoding !== null\n ? opts.encoding\n : null\n var verify = opts.verify\n\n try {\n // get the content stream\n stream = contentstream(req, debug, opts.inflate)\n length = stream.length\n stream.length = undefined\n } catch (err) {\n return next(err)\n }\n\n // set raw-body options\n opts.length = length\n opts.encoding = verify\n ? null\n : encoding\n\n // assert charset is supported\n if (opts.encoding === null && encoding !== null && !iconv.encodingExists(encoding)) {\n return next(createError(415, 'unsupported charset \"' + encoding.toUpperCase() + '\"', {\n charset: encoding.toLowerCase(),\n type: 'charset.unsupported'\n }))\n }\n\n // read body\n debug('read body')\n getBody(stream, opts, function (error, body) {\n if (error) {\n var _error\n\n if (error.type === 'encoding.unsupported') {\n // echo back charset\n _error = createError(415, 'unsupported charset \"' + encoding.toUpperCase() + '\"', {\n charset: encoding.toLowerCase(),\n type: 'charset.unsupported'\n })\n } else {\n // set status code on error\n _error = createError(400, error)\n }\n\n // unpipe from stream and destroy\n if (stream !== req) {\n unpipe(req)\n destroy(stream, true)\n }\n\n // read off entire request\n dump(req, function onfinished () {\n next(createError(400, _error))\n })\n return\n }\n\n // verify\n if (verify) {\n try {\n debug('verify body')\n verify(req, res, body, encoding)\n } catch (err) {\n next(createError(403, err, {\n body: body,\n type: err.type || 'entity.verify.failed'\n }))\n return\n }\n }\n\n // parse\n var str = body\n try {\n debug('parse body')\n str = typeof body !== 'string' && encoding !== null\n ? iconv.decode(body, encoding)\n : body\n req.body = parse(str)\n } catch (err) {\n next(createError(400, err, {\n body: str,\n type: err.type || 'entity.parse.failed'\n }))\n return\n }\n\n next()\n })\n}\n\n/**\n * Get the content stream of the request.\n *\n * @param {object} req\n * @param {function} debug\n * @param {boolean} [inflate=true]\n * @return {object}\n * @api private\n */\n\nfunction contentstream (req, debug, inflate) {\n var encoding = (req.headers['content-encoding'] || 'identity').toLowerCase()\n var length = req.headers['content-length']\n var stream\n\n debug('content-encoding \"%s\"', encoding)\n\n if (inflate === false && encoding !== 'identity') {\n throw createError(415, 'content encoding unsupported', {\n encoding: encoding,\n type: 'encoding.unsupported'\n })\n }\n\n switch (encoding) {\n case 'deflate':\n stream = zlib.createInflate()\n debug('inflate body')\n req.pipe(stream)\n break\n case 'gzip':\n stream = zlib.createGunzip()\n debug('gunzip body')\n req.pipe(stream)\n break\n case 'identity':\n stream = req\n stream.length = length\n break\n default:\n throw createError(415, 'unsupported content encoding \"' + encoding + '\"', {\n encoding: encoding,\n type: 'encoding.unsupported'\n })\n }\n\n return stream\n}\n\n/**\n * Dump the contents of a request.\n *\n * @param {object} req\n * @param {function} callback\n * @api private\n */\n\nfunction dump (req, callback) {\n if (onFinished.isFinished(req)) {\n callback(null)\n } else {\n onFinished(req, callback)\n req.resume()\n }\n}\n","/*!\n * media-typer\n * Copyright(c) 2014 Douglas Christopher Wilson\n * MIT Licensed\n */\n\n/**\n * RegExp to match *( \";\" parameter ) in RFC 2616 sec 3.7\n *\n * parameter = token \"=\" ( token | quoted-string )\n * token = 1*\n * separators = \"(\" | \")\" | \"<\" | \">\" | \"@\"\n * | \",\" | \";\" | \":\" | \"\\\" | <\">\n * | \"/\" | \"[\" | \"]\" | \"?\" | \"=\"\n * | \"{\" | \"}\" | SP | HT\n * quoted-string = ( <\"> *(qdtext | quoted-pair ) <\"> )\n * qdtext = >\n * quoted-pair = \"\\\" CHAR\n * CHAR = \n * TEXT = \n * LWS = [CRLF] 1*( SP | HT )\n * CRLF = CR LF\n * CR = \n * LF = \n * SP = \n * SHT = \n * CTL = \n * OCTET = \n */\nvar paramRegExp = /; *([!#$%&'\\*\\+\\-\\.0-9A-Z\\^_`a-z\\|~]+) *= *(\"(?:[ !\\u0023-\\u005b\\u005d-\\u007e\\u0080-\\u00ff]|\\\\[\\u0020-\\u007e])*\"|[!#$%&'\\*\\+\\-\\.0-9A-Z\\^_`a-z\\|~]+) */g;\nvar textRegExp = /^[\\u0020-\\u007e\\u0080-\\u00ff]+$/\nvar tokenRegExp = /^[!#$%&'\\*\\+\\-\\.0-9A-Z\\^_`a-z\\|~]+$/\n\n/**\n * RegExp to match quoted-pair in RFC 2616\n *\n * quoted-pair = \"\\\" CHAR\n * CHAR = \n */\nvar qescRegExp = /\\\\([\\u0000-\\u007f])/g;\n\n/**\n * RegExp to match chars that must be quoted-pair in RFC 2616\n */\nvar quoteRegExp = /([\\\\\"])/g;\n\n/**\n * RegExp to match type in RFC 6838\n *\n * type-name = restricted-name\n * subtype-name = restricted-name\n * restricted-name = restricted-name-first *126restricted-name-chars\n * restricted-name-first = ALPHA / DIGIT\n * restricted-name-chars = ALPHA / DIGIT / \"!\" / \"#\" /\n * \"$\" / \"&\" / \"-\" / \"^\" / \"_\"\n * restricted-name-chars =/ \".\" ; Characters before first dot always\n * ; specify a facet name\n * restricted-name-chars =/ \"+\" ; Characters after last plus always\n * ; specify a structured syntax suffix\n * ALPHA = %x41-5A / %x61-7A ; A-Z / a-z\n * DIGIT = %x30-39 ; 0-9\n */\nvar subtypeNameRegExp = /^[A-Za-z0-9][A-Za-z0-9!#$&^_.-]{0,126}$/\nvar typeNameRegExp = /^[A-Za-z0-9][A-Za-z0-9!#$&^_-]{0,126}$/\nvar typeRegExp = /^ *([A-Za-z0-9][A-Za-z0-9!#$&^_-]{0,126})\\/([A-Za-z0-9][A-Za-z0-9!#$&^_.+-]{0,126}) *$/;\n\n/**\n * Module exports.\n */\n\nexports.format = format\nexports.parse = parse\n\n/**\n * Format object to media type.\n *\n * @param {object} obj\n * @return {string}\n * @api public\n */\n\nfunction format(obj) {\n if (!obj || typeof obj !== 'object') {\n throw new TypeError('argument obj is required')\n }\n\n var parameters = obj.parameters\n var subtype = obj.subtype\n var suffix = obj.suffix\n var type = obj.type\n\n if (!type || !typeNameRegExp.test(type)) {\n throw new TypeError('invalid type')\n }\n\n if (!subtype || !subtypeNameRegExp.test(subtype)) {\n throw new TypeError('invalid subtype')\n }\n\n // format as type/subtype\n var string = type + '/' + subtype\n\n // append +suffix\n if (suffix) {\n if (!typeNameRegExp.test(suffix)) {\n throw new TypeError('invalid suffix')\n }\n\n string += '+' + suffix\n }\n\n // append parameters\n if (parameters && typeof parameters === 'object') {\n var param\n var params = Object.keys(parameters).sort()\n\n for (var i = 0; i < params.length; i++) {\n param = params[i]\n\n if (!tokenRegExp.test(param)) {\n throw new TypeError('invalid parameter name')\n }\n\n string += '; ' + param + '=' + qstring(parameters[param])\n }\n }\n\n return string\n}\n\n/**\n * Parse media type to object.\n *\n * @param {string|object} string\n * @return {Object}\n * @api public\n */\n\nfunction parse(string) {\n if (!string) {\n throw new TypeError('argument string is required')\n }\n\n // support req/res-like objects as argument\n if (typeof string === 'object') {\n string = getcontenttype(string)\n }\n\n if (typeof string !== 'string') {\n throw new TypeError('argument string is required to be a string')\n }\n\n var index = string.indexOf(';')\n var type = index !== -1\n ? string.substr(0, index)\n : string\n\n var key\n var match\n var obj = splitType(type)\n var params = {}\n var value\n\n paramRegExp.lastIndex = index\n\n while (match = paramRegExp.exec(string)) {\n if (match.index !== index) {\n throw new TypeError('invalid parameter format')\n }\n\n index += match[0].length\n key = match[1].toLowerCase()\n value = match[2]\n\n if (value[0] === '\"') {\n // remove quotes and escapes\n value = value\n .substr(1, value.length - 2)\n .replace(qescRegExp, '$1')\n }\n\n params[key] = value\n }\n\n if (index !== -1 && index !== string.length) {\n throw new TypeError('invalid parameter format')\n }\n\n obj.parameters = params\n\n return obj\n}\n\n/**\n * Get content-type from req/res objects.\n *\n * @param {object}\n * @return {Object}\n * @api private\n */\n\nfunction getcontenttype(obj) {\n if (typeof obj.getHeader === 'function') {\n // res-like\n return obj.getHeader('content-type')\n }\n\n if (typeof obj.headers === 'object') {\n // req-like\n return obj.headers && obj.headers['content-type']\n }\n}\n\n/**\n * Quote a string if necessary.\n *\n * @param {string} val\n * @return {string}\n * @api private\n */\n\nfunction qstring(val) {\n var str = String(val)\n\n // no need to quote tokens\n if (tokenRegExp.test(str)) {\n return str\n }\n\n if (str.length > 0 && !textRegExp.test(str)) {\n throw new TypeError('invalid parameter value')\n }\n\n return '\"' + str.replace(quoteRegExp, '\\\\$1') + '\"'\n}\n\n/**\n * Simply \"type/subtype+siffx\" into parts.\n *\n * @param {string} string\n * @return {Object}\n * @api private\n */\n\nfunction splitType(string) {\n var match = typeRegExp.exec(string.toLowerCase())\n\n if (!match) {\n throw new TypeError('invalid media type')\n }\n\n var type = match[1]\n var subtype = match[2]\n var suffix\n\n // suffix after last +\n var index = subtype.lastIndexOf('+')\n if (index !== -1) {\n suffix = subtype.substr(index + 1)\n subtype = subtype.substr(0, index)\n }\n\n var obj = {\n type: type,\n subtype: subtype,\n suffix: suffix\n }\n\n return obj\n}\n","/*!\n * mime-db\n * Copyright(c) 2014 Jonathan Ong\n * Copyright(c) 2015-2022 Douglas Christopher Wilson\n * MIT Licensed\n */\n\n/**\n * Module exports.\n */\n\nmodule.exports = require('./db.json')\n","/*!\n * mime-types\n * Copyright(c) 2014 Jonathan Ong\n * Copyright(c) 2015 Douglas Christopher Wilson\n * MIT Licensed\n */\n\n'use strict'\n\n/**\n * Module dependencies.\n * @private\n */\n\nvar db = require('mime-db')\nvar extname = require('path').extname\n\n/**\n * Module variables.\n * @private\n */\n\nvar EXTRACT_TYPE_REGEXP = /^\\s*([^;\\s]*)(?:;|\\s|$)/\nvar TEXT_TYPE_REGEXP = /^text\\//i\n\n/**\n * Module exports.\n * @public\n */\n\nexports.charset = charset\nexports.charsets = { lookup: charset }\nexports.contentType = contentType\nexports.extension = extension\nexports.extensions = Object.create(null)\nexports.lookup = lookup\nexports.types = Object.create(null)\n\n// Populate the extensions/types maps\npopulateMaps(exports.extensions, exports.types)\n\n/**\n * Get the default charset for a MIME type.\n *\n * @param {string} type\n * @return {boolean|string}\n */\n\nfunction charset (type) {\n if (!type || typeof type !== 'string') {\n return false\n }\n\n // TODO: use media-typer\n var match = EXTRACT_TYPE_REGEXP.exec(type)\n var mime = match && db[match[1].toLowerCase()]\n\n if (mime && mime.charset) {\n return mime.charset\n }\n\n // default text/* to utf-8\n if (match && TEXT_TYPE_REGEXP.test(match[1])) {\n return 'UTF-8'\n }\n\n return false\n}\n\n/**\n * Create a full Content-Type header given a MIME type or extension.\n *\n * @param {string} str\n * @return {boolean|string}\n */\n\nfunction contentType (str) {\n // TODO: should this even be in this module?\n if (!str || typeof str !== 'string') {\n return false\n }\n\n var mime = str.indexOf('/') === -1\n ? exports.lookup(str)\n : str\n\n if (!mime) {\n return false\n }\n\n // TODO: use content-type or other module\n if (mime.indexOf('charset') === -1) {\n var charset = exports.charset(mime)\n if (charset) mime += '; charset=' + charset.toLowerCase()\n }\n\n return mime\n}\n\n/**\n * Get the default extension for a MIME type.\n *\n * @param {string} type\n * @return {boolean|string}\n */\n\nfunction extension (type) {\n if (!type || typeof type !== 'string') {\n return false\n }\n\n // TODO: use media-typer\n var match = EXTRACT_TYPE_REGEXP.exec(type)\n\n // get extensions\n var exts = match && exports.extensions[match[1].toLowerCase()]\n\n if (!exts || !exts.length) {\n return false\n }\n\n return exts[0]\n}\n\n/**\n * Lookup the MIME type for a file path/extension.\n *\n * @param {string} path\n * @return {boolean|string}\n */\n\nfunction lookup (path) {\n if (!path || typeof path !== 'string') {\n return false\n }\n\n // get the extension (\"ext\" or \".ext\" or full path)\n var extension = extname('x.' + path)\n .toLowerCase()\n .substr(1)\n\n if (!extension) {\n return false\n }\n\n return exports.types[extension] || false\n}\n\n/**\n * Populate the extensions and types maps.\n * @private\n */\n\nfunction populateMaps (extensions, types) {\n // source preference (least -> most)\n var preference = ['nginx', 'apache', undefined, 'iana']\n\n Object.keys(db).forEach(function forEachMimeType (type) {\n var mime = db[type]\n var exts = mime.extensions\n\n if (!exts || !exts.length) {\n return\n }\n\n // mime -> extensions\n extensions[type] = exts\n\n // extension -> mime\n for (var i = 0; i < exts.length; i++) {\n var extension = exts[i]\n\n if (types[extension]) {\n var from = preference.indexOf(db[types[extension]].source)\n var to = preference.indexOf(mime.source)\n\n if (types[extension] !== 'application/octet-stream' &&\n (from > to || (from === to && types[extension].substr(0, 12) === 'application/'))) {\n // skip the remapping\n continue\n }\n }\n\n // set the extension -> mime\n types[extension] = type\n }\n })\n}\n","/*!\n * type-is\n * Copyright(c) 2014 Jonathan Ong\n * Copyright(c) 2014-2015 Douglas Christopher Wilson\n * MIT Licensed\n */\n\n'use strict'\n\n/**\n * Module dependencies.\n * @private\n */\n\nvar typer = require('media-typer')\nvar mime = require('mime-types')\n\n/**\n * Module exports.\n * @public\n */\n\nmodule.exports = typeofrequest\nmodule.exports.is = typeis\nmodule.exports.hasBody = hasbody\nmodule.exports.normalize = normalize\nmodule.exports.match = mimeMatch\n\n/**\n * Compare a `value` content-type with `types`.\n * Each `type` can be an extension like `html`,\n * a special shortcut like `multipart` or `urlencoded`,\n * or a mime type.\n *\n * If no types match, `false` is returned.\n * Otherwise, the first `type` that matches is returned.\n *\n * @param {String} value\n * @param {Array} types\n * @public\n */\n\nfunction typeis (value, types_) {\n var i\n var types = types_\n\n // remove parameters and normalize\n var val = tryNormalizeType(value)\n\n // no type or invalid\n if (!val) {\n return false\n }\n\n // support flattened arguments\n if (types && !Array.isArray(types)) {\n types = new Array(arguments.length - 1)\n for (i = 0; i < types.length; i++) {\n types[i] = arguments[i + 1]\n }\n }\n\n // no types, return the content type\n if (!types || !types.length) {\n return val\n }\n\n var type\n for (i = 0; i < types.length; i++) {\n if (mimeMatch(normalize(type = types[i]), val)) {\n return type[0] === '+' || type.indexOf('*') !== -1\n ? val\n : type\n }\n }\n\n // no matches\n return false\n}\n\n/**\n * Check if a request has a request body.\n * A request with a body __must__ either have `transfer-encoding`\n * or `content-length` headers set.\n * http://www.w3.org/Protocols/rfc2616/rfc2616-sec4.html#sec4.3\n *\n * @param {Object} request\n * @return {Boolean}\n * @public\n */\n\nfunction hasbody (req) {\n return req.headers['transfer-encoding'] !== undefined ||\n !isNaN(req.headers['content-length'])\n}\n\n/**\n * Check if the incoming request contains the \"Content-Type\"\n * header field, and it contains any of the give mime `type`s.\n * If there is no request body, `null` is returned.\n * If there is no content type, `false` is returned.\n * Otherwise, it returns the first `type` that matches.\n *\n * Examples:\n *\n * // With Content-Type: text/html; charset=utf-8\n * this.is('html'); // => 'html'\n * this.is('text/html'); // => 'text/html'\n * this.is('text/*', 'application/json'); // => 'text/html'\n *\n * // When Content-Type is application/json\n * this.is('json', 'urlencoded'); // => 'json'\n * this.is('application/json'); // => 'application/json'\n * this.is('html', 'application/*'); // => 'application/json'\n *\n * this.is('html'); // => false\n *\n * @param {String|Array} types...\n * @return {String|false|null}\n * @public\n */\n\nfunction typeofrequest (req, types_) {\n var types = types_\n\n // no body\n if (!hasbody(req)) {\n return null\n }\n\n // support flattened arguments\n if (arguments.length > 2) {\n types = new Array(arguments.length - 1)\n for (var i = 0; i < types.length; i++) {\n types[i] = arguments[i + 1]\n }\n }\n\n // request content type\n var value = req.headers['content-type']\n\n return typeis(value, types)\n}\n\n/**\n * Normalize a mime type.\n * If it's a shorthand, expand it to a valid mime type.\n *\n * In general, you probably want:\n *\n * var type = is(req, ['urlencoded', 'json', 'multipart']);\n *\n * Then use the appropriate body parsers.\n * These three are the most common request body types\n * and are thus ensured to work.\n *\n * @param {String} type\n * @private\n */\n\nfunction normalize (type) {\n if (typeof type !== 'string') {\n // invalid type\n return false\n }\n\n switch (type) {\n case 'urlencoded':\n return 'application/x-www-form-urlencoded'\n case 'multipart':\n return 'multipart/*'\n }\n\n if (type[0] === '+') {\n // \"+json\" -> \"*/*+json\" expando\n return '*/*' + type\n }\n\n return type.indexOf('/') === -1\n ? mime.lookup(type)\n : type\n}\n\n/**\n * Check if `expected` mime type\n * matches `actual` mime type with\n * wildcard and +suffix support.\n *\n * @param {String} expected\n * @param {String} actual\n * @return {Boolean}\n * @private\n */\n\nfunction mimeMatch (expected, actual) {\n // invalid type\n if (expected === false) {\n return false\n }\n\n // split types\n var actualParts = actual.split('/')\n var expectedParts = expected.split('/')\n\n // invalid format\n if (actualParts.length !== 2 || expectedParts.length !== 2) {\n return false\n }\n\n // validate type\n if (expectedParts[0] !== '*' && expectedParts[0] !== actualParts[0]) {\n return false\n }\n\n // validate suffix wildcard\n if (expectedParts[1].substr(0, 2) === '*+') {\n return expectedParts[1].length <= actualParts[1].length + 1 &&\n expectedParts[1].substr(1) === actualParts[1].substr(1 - expectedParts[1].length)\n }\n\n // validate subtype\n if (expectedParts[1] !== '*' && expectedParts[1] !== actualParts[1]) {\n return false\n }\n\n return true\n}\n\n/**\n * Normalize a type and remove parameters.\n *\n * @param {string} value\n * @return {string}\n * @private\n */\n\nfunction normalizeType (value) {\n // parse the type\n var type = typer.parse(value)\n\n // remove the parameters\n type.parameters = undefined\n\n // reformat it\n return typer.format(type)\n}\n\n/**\n * Try to normalize a type and remove parameters.\n *\n * @param {string} value\n * @return {string}\n * @private\n */\n\nfunction tryNormalizeType (value) {\n if (!value) {\n return null\n }\n\n try {\n return normalizeType(value)\n } catch (err) {\n return null\n }\n}\n","/*!\n * body-parser\n * Copyright(c) 2014 Jonathan Ong\n * Copyright(c) 2014-2015 Douglas Christopher Wilson\n * MIT Licensed\n */\n\n'use strict'\n\n/**\n * Module dependencies.\n * @private\n */\n\nvar bytes = require('bytes')\nvar contentType = require('content-type')\nvar createError = require('http-errors')\nvar debug = require('debug')('body-parser:json')\nvar read = require('../read')\nvar typeis = require('type-is')\n\n/**\n * Module exports.\n */\n\nmodule.exports = json\n\n/**\n * RegExp to match the first non-space in a string.\n *\n * Allowed whitespace is defined in RFC 7159:\n *\n * ws = *(\n * %x20 / ; Space\n * %x09 / ; Horizontal tab\n * %x0A / ; Line feed or New line\n * %x0D ) ; Carriage return\n */\n\nvar FIRST_CHAR_REGEXP = /^[\\x20\\x09\\x0a\\x0d]*([^\\x20\\x09\\x0a\\x0d])/ // eslint-disable-line no-control-regex\n\nvar JSON_SYNTAX_CHAR = '#'\nvar JSON_SYNTAX_REGEXP = /#+/g\n\n/**\n * Create a middleware to parse JSON bodies.\n *\n * @param {object} [options]\n * @return {function}\n * @public\n */\n\nfunction json (options) {\n var opts = options || {}\n\n var limit = typeof opts.limit !== 'number'\n ? bytes.parse(opts.limit || '100kb')\n : opts.limit\n var inflate = opts.inflate !== false\n var reviver = opts.reviver\n var strict = opts.strict !== false\n var type = opts.type || 'application/json'\n var verify = opts.verify || false\n\n if (verify !== false && typeof verify !== 'function') {\n throw new TypeError('option verify must be function')\n }\n\n // create the appropriate type checking function\n var shouldParse = typeof type !== 'function'\n ? typeChecker(type)\n : type\n\n function parse (body) {\n if (body.length === 0) {\n // special-case empty json body, as it's a common client-side mistake\n // TODO: maybe make this configurable or part of \"strict\" option\n return {}\n }\n\n if (strict) {\n var first = firstchar(body)\n\n if (first !== '{' && first !== '[') {\n debug('strict violation')\n throw createStrictSyntaxError(body, first)\n }\n }\n\n try {\n debug('parse json')\n return JSON.parse(body, reviver)\n } catch (e) {\n throw normalizeJsonSyntaxError(e, {\n message: e.message,\n stack: e.stack\n })\n }\n }\n\n return function jsonParser (req, res, next) {\n if (req._body) {\n debug('body already parsed')\n next()\n return\n }\n\n req.body = req.body || {}\n\n // skip requests without bodies\n if (!typeis.hasBody(req)) {\n debug('skip empty body')\n next()\n return\n }\n\n debug('content-type %j', req.headers['content-type'])\n\n // determine if request should be parsed\n if (!shouldParse(req)) {\n debug('skip parsing')\n next()\n return\n }\n\n // assert charset per RFC 7159 sec 8.1\n var charset = getCharset(req) || 'utf-8'\n if (charset.slice(0, 4) !== 'utf-') {\n debug('invalid charset')\n next(createError(415, 'unsupported charset \"' + charset.toUpperCase() + '\"', {\n charset: charset,\n type: 'charset.unsupported'\n }))\n return\n }\n\n // read\n read(req, res, next, parse, debug, {\n encoding: charset,\n inflate: inflate,\n limit: limit,\n verify: verify\n })\n }\n}\n\n/**\n * Create strict violation syntax error matching native error.\n *\n * @param {string} str\n * @param {string} char\n * @return {Error}\n * @private\n */\n\nfunction createStrictSyntaxError (str, char) {\n var index = str.indexOf(char)\n var partial = ''\n\n if (index !== -1) {\n partial = str.substring(0, index) + JSON_SYNTAX_CHAR\n\n for (var i = index + 1; i < str.length; i++) {\n partial += JSON_SYNTAX_CHAR\n }\n }\n\n try {\n JSON.parse(partial); /* istanbul ignore next */ throw new SyntaxError('strict violation')\n } catch (e) {\n return normalizeJsonSyntaxError(e, {\n message: e.message.replace(JSON_SYNTAX_REGEXP, function (placeholder) {\n return str.substring(index, index + placeholder.length)\n }),\n stack: e.stack\n })\n }\n}\n\n/**\n * Get the first non-whitespace character in a string.\n *\n * @param {string} str\n * @return {function}\n * @private\n */\n\nfunction firstchar (str) {\n var match = FIRST_CHAR_REGEXP.exec(str)\n\n return match\n ? match[1]\n : undefined\n}\n\n/**\n * Get the charset of a request.\n *\n * @param {object} req\n * @api private\n */\n\nfunction getCharset (req) {\n try {\n return (contentType.parse(req).parameters.charset || '').toLowerCase()\n } catch (e) {\n return undefined\n }\n}\n\n/**\n * Normalize a SyntaxError for JSON.parse.\n *\n * @param {SyntaxError} error\n * @param {object} obj\n * @return {SyntaxError}\n */\n\nfunction normalizeJsonSyntaxError (error, obj) {\n var keys = Object.getOwnPropertyNames(error)\n\n for (var i = 0; i < keys.length; i++) {\n var key = keys[i]\n if (key !== 'stack' && key !== 'message') {\n delete error[key]\n }\n }\n\n // replace stack before message for Node.js 0.10 and below\n error.stack = obj.stack.replace(error.message, obj.message)\n error.message = obj.message\n\n return error\n}\n\n/**\n * Get the simple type checker.\n *\n * @param {string} type\n * @return {function}\n */\n\nfunction typeChecker (type) {\n return function checkType (req) {\n return Boolean(typeis(req, type))\n }\n}\n","/*!\n * body-parser\n * Copyright(c) 2014-2015 Douglas Christopher Wilson\n * MIT Licensed\n */\n\n'use strict'\n\n/**\n * Module dependencies.\n */\n\nvar bytes = require('bytes')\nvar debug = require('debug')('body-parser:raw')\nvar read = require('../read')\nvar typeis = require('type-is')\n\n/**\n * Module exports.\n */\n\nmodule.exports = raw\n\n/**\n * Create a middleware to parse raw bodies.\n *\n * @param {object} [options]\n * @return {function}\n * @api public\n */\n\nfunction raw (options) {\n var opts = options || {}\n\n var inflate = opts.inflate !== false\n var limit = typeof opts.limit !== 'number'\n ? bytes.parse(opts.limit || '100kb')\n : opts.limit\n var type = opts.type || 'application/octet-stream'\n var verify = opts.verify || false\n\n if (verify !== false && typeof verify !== 'function') {\n throw new TypeError('option verify must be function')\n }\n\n // create the appropriate type checking function\n var shouldParse = typeof type !== 'function'\n ? typeChecker(type)\n : type\n\n function parse (buf) {\n return buf\n }\n\n return function rawParser (req, res, next) {\n if (req._body) {\n debug('body already parsed')\n next()\n return\n }\n\n req.body = req.body || {}\n\n // skip requests without bodies\n if (!typeis.hasBody(req)) {\n debug('skip empty body')\n next()\n return\n }\n\n debug('content-type %j', req.headers['content-type'])\n\n // determine if request should be parsed\n if (!shouldParse(req)) {\n debug('skip parsing')\n next()\n return\n }\n\n // read\n read(req, res, next, parse, debug, {\n encoding: null,\n inflate: inflate,\n limit: limit,\n verify: verify\n })\n }\n}\n\n/**\n * Get the simple type checker.\n *\n * @param {string} type\n * @return {function}\n */\n\nfunction typeChecker (type) {\n return function checkType (req) {\n return Boolean(typeis(req, type))\n }\n}\n","/*!\n * body-parser\n * Copyright(c) 2014-2015 Douglas Christopher Wilson\n * MIT Licensed\n */\n\n'use strict'\n\n/**\n * Module dependencies.\n */\n\nvar bytes = require('bytes')\nvar contentType = require('content-type')\nvar debug = require('debug')('body-parser:text')\nvar read = require('../read')\nvar typeis = require('type-is')\n\n/**\n * Module exports.\n */\n\nmodule.exports = text\n\n/**\n * Create a middleware to parse text bodies.\n *\n * @param {object} [options]\n * @return {function}\n * @api public\n */\n\nfunction text (options) {\n var opts = options || {}\n\n var defaultCharset = opts.defaultCharset || 'utf-8'\n var inflate = opts.inflate !== false\n var limit = typeof opts.limit !== 'number'\n ? bytes.parse(opts.limit || '100kb')\n : opts.limit\n var type = opts.type || 'text/plain'\n var verify = opts.verify || false\n\n if (verify !== false && typeof verify !== 'function') {\n throw new TypeError('option verify must be function')\n }\n\n // create the appropriate type checking function\n var shouldParse = typeof type !== 'function'\n ? typeChecker(type)\n : type\n\n function parse (buf) {\n return buf\n }\n\n return function textParser (req, res, next) {\n if (req._body) {\n debug('body already parsed')\n next()\n return\n }\n\n req.body = req.body || {}\n\n // skip requests without bodies\n if (!typeis.hasBody(req)) {\n debug('skip empty body')\n next()\n return\n }\n\n debug('content-type %j', req.headers['content-type'])\n\n // determine if request should be parsed\n if (!shouldParse(req)) {\n debug('skip parsing')\n next()\n return\n }\n\n // get charset\n var charset = getCharset(req) || defaultCharset\n\n // read\n read(req, res, next, parse, debug, {\n encoding: charset,\n inflate: inflate,\n limit: limit,\n verify: verify\n })\n }\n}\n\n/**\n * Get the charset of a request.\n *\n * @param {object} req\n * @api private\n */\n\nfunction getCharset (req) {\n try {\n return (contentType.parse(req).parameters.charset || '').toLowerCase()\n } catch (e) {\n return undefined\n }\n}\n\n/**\n * Get the simple type checker.\n *\n * @param {string} type\n * @return {function}\n */\n\nfunction typeChecker (type) {\n return function checkType (req) {\n return Boolean(typeis(req, type))\n }\n}\n","'use strict';\n\n/** @type {import('./type')} */\nmodule.exports = TypeError;\n","var hasMap = typeof Map === 'function' && Map.prototype;\nvar mapSizeDescriptor = Object.getOwnPropertyDescriptor && hasMap ? Object.getOwnPropertyDescriptor(Map.prototype, 'size') : null;\nvar mapSize = hasMap && mapSizeDescriptor && typeof mapSizeDescriptor.get === 'function' ? mapSizeDescriptor.get : null;\nvar mapForEach = hasMap && Map.prototype.forEach;\nvar hasSet = typeof Set === 'function' && Set.prototype;\nvar setSizeDescriptor = Object.getOwnPropertyDescriptor && hasSet ? Object.getOwnPropertyDescriptor(Set.prototype, 'size') : null;\nvar setSize = hasSet && setSizeDescriptor && typeof setSizeDescriptor.get === 'function' ? setSizeDescriptor.get : null;\nvar setForEach = hasSet && Set.prototype.forEach;\nvar hasWeakMap = typeof WeakMap === 'function' && WeakMap.prototype;\nvar weakMapHas = hasWeakMap ? WeakMap.prototype.has : null;\nvar hasWeakSet = typeof WeakSet === 'function' && WeakSet.prototype;\nvar weakSetHas = hasWeakSet ? WeakSet.prototype.has : null;\nvar hasWeakRef = typeof WeakRef === 'function' && WeakRef.prototype;\nvar weakRefDeref = hasWeakRef ? WeakRef.prototype.deref : null;\nvar booleanValueOf = Boolean.prototype.valueOf;\nvar objectToString = Object.prototype.toString;\nvar functionToString = Function.prototype.toString;\nvar $match = String.prototype.match;\nvar $slice = String.prototype.slice;\nvar $replace = String.prototype.replace;\nvar $toUpperCase = String.prototype.toUpperCase;\nvar $toLowerCase = String.prototype.toLowerCase;\nvar $test = RegExp.prototype.test;\nvar $concat = Array.prototype.concat;\nvar $join = Array.prototype.join;\nvar $arrSlice = Array.prototype.slice;\nvar $floor = Math.floor;\nvar bigIntValueOf = typeof BigInt === 'function' ? BigInt.prototype.valueOf : null;\nvar gOPS = Object.getOwnPropertySymbols;\nvar symToString = typeof Symbol === 'function' && typeof Symbol.iterator === 'symbol' ? Symbol.prototype.toString : null;\nvar hasShammedSymbols = typeof Symbol === 'function' && typeof Symbol.iterator === 'object';\n// ie, `has-tostringtag/shams\nvar toStringTag = typeof Symbol === 'function' && Symbol.toStringTag && (typeof Symbol.toStringTag === hasShammedSymbols ? 'object' : 'symbol')\n ? Symbol.toStringTag\n : null;\nvar isEnumerable = Object.prototype.propertyIsEnumerable;\n\nvar gPO = (typeof Reflect === 'function' ? Reflect.getPrototypeOf : Object.getPrototypeOf) || (\n [].__proto__ === Array.prototype // eslint-disable-line no-proto\n ? function (O) {\n return O.__proto__; // eslint-disable-line no-proto\n }\n : null\n);\n\nfunction addNumericSeparator(num, str) {\n if (\n num === Infinity\n || num === -Infinity\n || num !== num\n || (num && num > -1000 && num < 1000)\n || $test.call(/e/, str)\n ) {\n return str;\n }\n var sepRegex = /[0-9](?=(?:[0-9]{3})+(?![0-9]))/g;\n if (typeof num === 'number') {\n var int = num < 0 ? -$floor(-num) : $floor(num); // trunc(num)\n if (int !== num) {\n var intStr = String(int);\n var dec = $slice.call(str, intStr.length + 1);\n return $replace.call(intStr, sepRegex, '$&_') + '.' + $replace.call($replace.call(dec, /([0-9]{3})/g, '$&_'), /_$/, '');\n }\n }\n return $replace.call(str, sepRegex, '$&_');\n}\n\nvar utilInspect = require('./util.inspect');\nvar inspectCustom = utilInspect.custom;\nvar inspectSymbol = isSymbol(inspectCustom) ? inspectCustom : null;\n\nvar quotes = {\n __proto__: null,\n 'double': '\"',\n single: \"'\"\n};\nvar quoteREs = {\n __proto__: null,\n 'double': /([\"\\\\])/g,\n single: /(['\\\\])/g\n};\n\nmodule.exports = function inspect_(obj, options, depth, seen) {\n var opts = options || {};\n\n if (has(opts, 'quoteStyle') && !has(quotes, opts.quoteStyle)) {\n throw new TypeError('option \"quoteStyle\" must be \"single\" or \"double\"');\n }\n if (\n has(opts, 'maxStringLength') && (typeof opts.maxStringLength === 'number'\n ? opts.maxStringLength < 0 && opts.maxStringLength !== Infinity\n : opts.maxStringLength !== null\n )\n ) {\n throw new TypeError('option \"maxStringLength\", if provided, must be a positive integer, Infinity, or `null`');\n }\n var customInspect = has(opts, 'customInspect') ? opts.customInspect : true;\n if (typeof customInspect !== 'boolean' && customInspect !== 'symbol') {\n throw new TypeError('option \"customInspect\", if provided, must be `true`, `false`, or `\\'symbol\\'`');\n }\n\n if (\n has(opts, 'indent')\n && opts.indent !== null\n && opts.indent !== '\\t'\n && !(parseInt(opts.indent, 10) === opts.indent && opts.indent > 0)\n ) {\n throw new TypeError('option \"indent\" must be \"\\\\t\", an integer > 0, or `null`');\n }\n if (has(opts, 'numericSeparator') && typeof opts.numericSeparator !== 'boolean') {\n throw new TypeError('option \"numericSeparator\", if provided, must be `true` or `false`');\n }\n var numericSeparator = opts.numericSeparator;\n\n if (typeof obj === 'undefined') {\n return 'undefined';\n }\n if (obj === null) {\n return 'null';\n }\n if (typeof obj === 'boolean') {\n return obj ? 'true' : 'false';\n }\n\n if (typeof obj === 'string') {\n return inspectString(obj, opts);\n }\n if (typeof obj === 'number') {\n if (obj === 0) {\n return Infinity / obj > 0 ? '0' : '-0';\n }\n var str = String(obj);\n return numericSeparator ? addNumericSeparator(obj, str) : str;\n }\n if (typeof obj === 'bigint') {\n var bigIntStr = String(obj) + 'n';\n return numericSeparator ? addNumericSeparator(obj, bigIntStr) : bigIntStr;\n }\n\n var maxDepth = typeof opts.depth === 'undefined' ? 5 : opts.depth;\n if (typeof depth === 'undefined') { depth = 0; }\n if (depth >= maxDepth && maxDepth > 0 && typeof obj === 'object') {\n return isArray(obj) ? '[Array]' : '[Object]';\n }\n\n var indent = getIndent(opts, depth);\n\n if (typeof seen === 'undefined') {\n seen = [];\n } else if (indexOf(seen, obj) >= 0) {\n return '[Circular]';\n }\n\n function inspect(value, from, noIndent) {\n if (from) {\n seen = $arrSlice.call(seen);\n seen.push(from);\n }\n if (noIndent) {\n var newOpts = {\n depth: opts.depth\n };\n if (has(opts, 'quoteStyle')) {\n newOpts.quoteStyle = opts.quoteStyle;\n }\n return inspect_(value, newOpts, depth + 1, seen);\n }\n return inspect_(value, opts, depth + 1, seen);\n }\n\n if (typeof obj === 'function' && !isRegExp(obj)) { // in older engines, regexes are callable\n var name = nameOf(obj);\n var keys = arrObjKeys(obj, inspect);\n return '[Function' + (name ? ': ' + name : ' (anonymous)') + ']' + (keys.length > 0 ? ' { ' + $join.call(keys, ', ') + ' }' : '');\n }\n if (isSymbol(obj)) {\n var symString = hasShammedSymbols ? $replace.call(String(obj), /^(Symbol\\(.*\\))_[^)]*$/, '$1') : symToString.call(obj);\n return typeof obj === 'object' && !hasShammedSymbols ? markBoxed(symString) : symString;\n }\n if (isElement(obj)) {\n var s = '<' + $toLowerCase.call(String(obj.nodeName));\n var attrs = obj.attributes || [];\n for (var i = 0; i < attrs.length; i++) {\n s += ' ' + attrs[i].name + '=' + wrapQuotes(quote(attrs[i].value), 'double', opts);\n }\n s += '>';\n if (obj.childNodes && obj.childNodes.length) { s += '...'; }\n s += '';\n return s;\n }\n if (isArray(obj)) {\n if (obj.length === 0) { return '[]'; }\n var xs = arrObjKeys(obj, inspect);\n if (indent && !singleLineValues(xs)) {\n return '[' + indentedJoin(xs, indent) + ']';\n }\n return '[ ' + $join.call(xs, ', ') + ' ]';\n }\n if (isError(obj)) {\n var parts = arrObjKeys(obj, inspect);\n if (!('cause' in Error.prototype) && 'cause' in obj && !isEnumerable.call(obj, 'cause')) {\n return '{ [' + String(obj) + '] ' + $join.call($concat.call('[cause]: ' + inspect(obj.cause), parts), ', ') + ' }';\n }\n if (parts.length === 0) { return '[' + String(obj) + ']'; }\n return '{ [' + String(obj) + '] ' + $join.call(parts, ', ') + ' }';\n }\n if (typeof obj === 'object' && customInspect) {\n if (inspectSymbol && typeof obj[inspectSymbol] === 'function' && utilInspect) {\n return utilInspect(obj, { depth: maxDepth - depth });\n } else if (customInspect !== 'symbol' && typeof obj.inspect === 'function') {\n return obj.inspect();\n }\n }\n if (isMap(obj)) {\n var mapParts = [];\n if (mapForEach) {\n mapForEach.call(obj, function (value, key) {\n mapParts.push(inspect(key, obj, true) + ' => ' + inspect(value, obj));\n });\n }\n return collectionOf('Map', mapSize.call(obj), mapParts, indent);\n }\n if (isSet(obj)) {\n var setParts = [];\n if (setForEach) {\n setForEach.call(obj, function (value) {\n setParts.push(inspect(value, obj));\n });\n }\n return collectionOf('Set', setSize.call(obj), setParts, indent);\n }\n if (isWeakMap(obj)) {\n return weakCollectionOf('WeakMap');\n }\n if (isWeakSet(obj)) {\n return weakCollectionOf('WeakSet');\n }\n if (isWeakRef(obj)) {\n return weakCollectionOf('WeakRef');\n }\n if (isNumber(obj)) {\n return markBoxed(inspect(Number(obj)));\n }\n if (isBigInt(obj)) {\n return markBoxed(inspect(bigIntValueOf.call(obj)));\n }\n if (isBoolean(obj)) {\n return markBoxed(booleanValueOf.call(obj));\n }\n if (isString(obj)) {\n return markBoxed(inspect(String(obj)));\n }\n // note: in IE 8, sometimes `global !== window` but both are the prototypes of each other\n /* eslint-env browser */\n if (typeof window !== 'undefined' && obj === window) {\n return '{ [object Window] }';\n }\n if (\n (typeof globalThis !== 'undefined' && obj === globalThis)\n || (typeof global !== 'undefined' && obj === global)\n ) {\n return '{ [object globalThis] }';\n }\n if (!isDate(obj) && !isRegExp(obj)) {\n var ys = arrObjKeys(obj, inspect);\n var isPlainObject = gPO ? gPO(obj) === Object.prototype : obj instanceof Object || obj.constructor === Object;\n var protoTag = obj instanceof Object ? '' : 'null prototype';\n var stringTag = !isPlainObject && toStringTag && Object(obj) === obj && toStringTag in obj ? $slice.call(toStr(obj), 8, -1) : protoTag ? 'Object' : '';\n var constructorTag = isPlainObject || typeof obj.constructor !== 'function' ? '' : obj.constructor.name ? obj.constructor.name + ' ' : '';\n var tag = constructorTag + (stringTag || protoTag ? '[' + $join.call($concat.call([], stringTag || [], protoTag || []), ': ') + '] ' : '');\n if (ys.length === 0) { return tag + '{}'; }\n if (indent) {\n return tag + '{' + indentedJoin(ys, indent) + '}';\n }\n return tag + '{ ' + $join.call(ys, ', ') + ' }';\n }\n return String(obj);\n};\n\nfunction wrapQuotes(s, defaultStyle, opts) {\n var style = opts.quoteStyle || defaultStyle;\n var quoteChar = quotes[style];\n return quoteChar + s + quoteChar;\n}\n\nfunction quote(s) {\n return $replace.call(String(s), /\"/g, '"');\n}\n\nfunction canTrustToString(obj) {\n return !toStringTag || !(typeof obj === 'object' && (toStringTag in obj || typeof obj[toStringTag] !== 'undefined'));\n}\nfunction isArray(obj) { return toStr(obj) === '[object Array]' && canTrustToString(obj); }\nfunction isDate(obj) { return toStr(obj) === '[object Date]' && canTrustToString(obj); }\nfunction isRegExp(obj) { return toStr(obj) === '[object RegExp]' && canTrustToString(obj); }\nfunction isError(obj) { return toStr(obj) === '[object Error]' && canTrustToString(obj); }\nfunction isString(obj) { return toStr(obj) === '[object String]' && canTrustToString(obj); }\nfunction isNumber(obj) { return toStr(obj) === '[object Number]' && canTrustToString(obj); }\nfunction isBoolean(obj) { return toStr(obj) === '[object Boolean]' && canTrustToString(obj); }\n\n// Symbol and BigInt do have Symbol.toStringTag by spec, so that can't be used to eliminate false positives\nfunction isSymbol(obj) {\n if (hasShammedSymbols) {\n return obj && typeof obj === 'object' && obj instanceof Symbol;\n }\n if (typeof obj === 'symbol') {\n return true;\n }\n if (!obj || typeof obj !== 'object' || !symToString) {\n return false;\n }\n try {\n symToString.call(obj);\n return true;\n } catch (e) {}\n return false;\n}\n\nfunction isBigInt(obj) {\n if (!obj || typeof obj !== 'object' || !bigIntValueOf) {\n return false;\n }\n try {\n bigIntValueOf.call(obj);\n return true;\n } catch (e) {}\n return false;\n}\n\nvar hasOwn = Object.prototype.hasOwnProperty || function (key) { return key in this; };\nfunction has(obj, key) {\n return hasOwn.call(obj, key);\n}\n\nfunction toStr(obj) {\n return objectToString.call(obj);\n}\n\nfunction nameOf(f) {\n if (f.name) { return f.name; }\n var m = $match.call(functionToString.call(f), /^function\\s*([\\w$]+)/);\n if (m) { return m[1]; }\n return null;\n}\n\nfunction indexOf(xs, x) {\n if (xs.indexOf) { return xs.indexOf(x); }\n for (var i = 0, l = xs.length; i < l; i++) {\n if (xs[i] === x) { return i; }\n }\n return -1;\n}\n\nfunction isMap(x) {\n if (!mapSize || !x || typeof x !== 'object') {\n return false;\n }\n try {\n mapSize.call(x);\n try {\n setSize.call(x);\n } catch (s) {\n return true;\n }\n return x instanceof Map; // core-js workaround, pre-v2.5.0\n } catch (e) {}\n return false;\n}\n\nfunction isWeakMap(x) {\n if (!weakMapHas || !x || typeof x !== 'object') {\n return false;\n }\n try {\n weakMapHas.call(x, weakMapHas);\n try {\n weakSetHas.call(x, weakSetHas);\n } catch (s) {\n return true;\n }\n return x instanceof WeakMap; // core-js workaround, pre-v2.5.0\n } catch (e) {}\n return false;\n}\n\nfunction isWeakRef(x) {\n if (!weakRefDeref || !x || typeof x !== 'object') {\n return false;\n }\n try {\n weakRefDeref.call(x);\n return true;\n } catch (e) {}\n return false;\n}\n\nfunction isSet(x) {\n if (!setSize || !x || typeof x !== 'object') {\n return false;\n }\n try {\n setSize.call(x);\n try {\n mapSize.call(x);\n } catch (m) {\n return true;\n }\n return x instanceof Set; // core-js workaround, pre-v2.5.0\n } catch (e) {}\n return false;\n}\n\nfunction isWeakSet(x) {\n if (!weakSetHas || !x || typeof x !== 'object') {\n return false;\n }\n try {\n weakSetHas.call(x, weakSetHas);\n try {\n weakMapHas.call(x, weakMapHas);\n } catch (s) {\n return true;\n }\n return x instanceof WeakSet; // core-js workaround, pre-v2.5.0\n } catch (e) {}\n return false;\n}\n\nfunction isElement(x) {\n if (!x || typeof x !== 'object') { return false; }\n if (typeof HTMLElement !== 'undefined' && x instanceof HTMLElement) {\n return true;\n }\n return typeof x.nodeName === 'string' && typeof x.getAttribute === 'function';\n}\n\nfunction inspectString(str, opts) {\n if (str.length > opts.maxStringLength) {\n var remaining = str.length - opts.maxStringLength;\n var trailer = '... ' + remaining + ' more character' + (remaining > 1 ? 's' : '');\n return inspectString($slice.call(str, 0, opts.maxStringLength), opts) + trailer;\n }\n var quoteRE = quoteREs[opts.quoteStyle || 'single'];\n quoteRE.lastIndex = 0;\n // eslint-disable-next-line no-control-regex\n var s = $replace.call($replace.call(str, quoteRE, '\\\\$1'), /[\\x00-\\x1f]/g, lowbyte);\n return wrapQuotes(s, 'single', opts);\n}\n\nfunction lowbyte(c) {\n var n = c.charCodeAt(0);\n var x = {\n 8: 'b',\n 9: 't',\n 10: 'n',\n 12: 'f',\n 13: 'r'\n }[n];\n if (x) { return '\\\\' + x; }\n return '\\\\x' + (n < 0x10 ? '0' : '') + $toUpperCase.call(n.toString(16));\n}\n\nfunction markBoxed(str) {\n return 'Object(' + str + ')';\n}\n\nfunction weakCollectionOf(type) {\n return type + ' { ? }';\n}\n\nfunction collectionOf(type, size, entries, indent) {\n var joinedEntries = indent ? indentedJoin(entries, indent) : $join.call(entries, ', ');\n return type + ' (' + size + ') {' + joinedEntries + '}';\n}\n\nfunction singleLineValues(xs) {\n for (var i = 0; i < xs.length; i++) {\n if (indexOf(xs[i], '\\n') >= 0) {\n return false;\n }\n }\n return true;\n}\n\nfunction getIndent(opts, depth) {\n var baseIndent;\n if (opts.indent === '\\t') {\n baseIndent = '\\t';\n } else if (typeof opts.indent === 'number' && opts.indent > 0) {\n baseIndent = $join.call(Array(opts.indent + 1), ' ');\n } else {\n return null;\n }\n return {\n base: baseIndent,\n prev: $join.call(Array(depth + 1), baseIndent)\n };\n}\n\nfunction indentedJoin(xs, indent) {\n if (xs.length === 0) { return ''; }\n var lineJoiner = '\\n' + indent.prev + indent.base;\n return lineJoiner + $join.call(xs, ',' + lineJoiner) + '\\n' + indent.prev;\n}\n\nfunction arrObjKeys(obj, inspect) {\n var isArr = isArray(obj);\n var xs = [];\n if (isArr) {\n xs.length = obj.length;\n for (var i = 0; i < obj.length; i++) {\n xs[i] = has(obj, i) ? inspect(obj[i], obj) : '';\n }\n }\n var syms = typeof gOPS === 'function' ? gOPS(obj) : [];\n var symMap;\n if (hasShammedSymbols) {\n symMap = {};\n for (var k = 0; k < syms.length; k++) {\n symMap['$' + syms[k]] = syms[k];\n }\n }\n\n for (var key in obj) { // eslint-disable-line no-restricted-syntax\n if (!has(obj, key)) { continue; } // eslint-disable-line no-restricted-syntax, no-continue\n if (isArr && String(Number(key)) === key && key < obj.length) { continue; } // eslint-disable-line no-restricted-syntax, no-continue\n if (hasShammedSymbols && symMap['$' + key] instanceof Symbol) {\n // this is to prevent shammed Symbols, which are stored as strings, from being included in the string key section\n continue; // eslint-disable-line no-restricted-syntax, no-continue\n } else if ($test.call(/[^\\w$]/, key)) {\n xs.push(inspect(key, obj) + ': ' + inspect(obj[key], obj));\n } else {\n xs.push(key + ': ' + inspect(obj[key], obj));\n }\n }\n if (typeof gOPS === 'function') {\n for (var j = 0; j < syms.length; j++) {\n if (isEnumerable.call(obj, syms[j])) {\n xs.push('[' + inspect(syms[j]) + ']: ' + inspect(obj[syms[j]], obj));\n }\n }\n }\n return xs;\n}\n","'use strict';\n\nvar inspect = require('object-inspect');\n\nvar $TypeError = require('es-errors/type');\n\n/*\n* This function traverses the list returning the node corresponding to the given key.\n*\n* That node is also moved to the head of the list, so that if it's accessed again we don't need to traverse the whole list.\n* By doing so, all the recently used nodes can be accessed relatively quickly.\n*/\n/** @type {import('./list.d.ts').listGetNode} */\n// eslint-disable-next-line consistent-return\nvar listGetNode = function (list, key, isDelete) {\n\t/** @type {typeof list | NonNullable<(typeof list)['next']>} */\n\tvar prev = list;\n\t/** @type {(typeof list)['next']} */\n\tvar curr;\n\t// eslint-disable-next-line eqeqeq\n\tfor (; (curr = prev.next) != null; prev = curr) {\n\t\tif (curr.key === key) {\n\t\t\tprev.next = curr.next;\n\t\t\tif (!isDelete) {\n\t\t\t\t// eslint-disable-next-line no-extra-parens\n\t\t\t\tcurr.next = /** @type {NonNullable} */ (list.next);\n\t\t\t\tlist.next = curr; // eslint-disable-line no-param-reassign\n\t\t\t}\n\t\t\treturn curr;\n\t\t}\n\t}\n};\n\n/** @type {import('./list.d.ts').listGet} */\nvar listGet = function (objects, key) {\n\tif (!objects) {\n\t\treturn void undefined;\n\t}\n\tvar node = listGetNode(objects, key);\n\treturn node && node.value;\n};\n/** @type {import('./list.d.ts').listSet} */\nvar listSet = function (objects, key, value) {\n\tvar node = listGetNode(objects, key);\n\tif (node) {\n\t\tnode.value = value;\n\t} else {\n\t\t// Prepend the new node to the beginning of the list\n\t\tobjects.next = /** @type {import('./list.d.ts').ListNode} */ ({ // eslint-disable-line no-param-reassign, no-extra-parens\n\t\t\tkey: key,\n\t\t\tnext: objects.next,\n\t\t\tvalue: value\n\t\t});\n\t}\n};\n/** @type {import('./list.d.ts').listHas} */\nvar listHas = function (objects, key) {\n\tif (!objects) {\n\t\treturn false;\n\t}\n\treturn !!listGetNode(objects, key);\n};\n/** @type {import('./list.d.ts').listDelete} */\n// eslint-disable-next-line consistent-return\nvar listDelete = function (objects, key) {\n\tif (objects) {\n\t\treturn listGetNode(objects, key, true);\n\t}\n};\n\n/** @type {import('.')} */\nmodule.exports = function getSideChannelList() {\n\t/** @typedef {ReturnType} Channel */\n\t/** @typedef {Parameters[0]} K */\n\t/** @typedef {Parameters[1]} V */\n\n\t/** @type {import('./list.d.ts').RootNode | undefined} */ var $o;\n\n\t/** @type {Channel} */\n\tvar channel = {\n\t\tassert: function (key) {\n\t\t\tif (!channel.has(key)) {\n\t\t\t\tthrow new $TypeError('Side channel does not contain ' + inspect(key));\n\t\t\t}\n\t\t},\n\t\t'delete': function (key) {\n\t\t\tvar root = $o && $o.next;\n\t\t\tvar deletedNode = listDelete($o, key);\n\t\t\tif (deletedNode && root && root === deletedNode) {\n\t\t\t\t$o = void undefined;\n\t\t\t}\n\t\t\treturn !!deletedNode;\n\t\t},\n\t\tget: function (key) {\n\t\t\treturn listGet($o, key);\n\t\t},\n\t\thas: function (key) {\n\t\t\treturn listHas($o, key);\n\t\t},\n\t\tset: function (key, value) {\n\t\t\tif (!$o) {\n\t\t\t\t// Initialize the linked list as an empty node, so that we don't have to special-case handling of the first node: we can always refer to it as (previous node).next, instead of something like (list).head\n\t\t\t\t$o = {\n\t\t\t\t\tnext: void undefined\n\t\t\t\t};\n\t\t\t}\n\t\t\t// eslint-disable-next-line no-extra-parens\n\t\t\tlistSet(/** @type {NonNullable} */ ($o), key, value);\n\t\t}\n\t};\n\t// @ts-expect-error TODO: figure out why this is erroring\n\treturn channel;\n};\n","'use strict';\n\n/** @type {import('.')} */\nmodule.exports = Object;\n","'use strict';\n\n/** @type {import('.')} */\nmodule.exports = Error;\n","'use strict';\n\n/** @type {import('./eval')} */\nmodule.exports = EvalError;\n","'use strict';\n\n/** @type {import('./range')} */\nmodule.exports = RangeError;\n","'use strict';\n\n/** @type {import('./ref')} */\nmodule.exports = ReferenceError;\n","'use strict';\n\n/** @type {import('./syntax')} */\nmodule.exports = SyntaxError;\n","'use strict';\n\n/** @type {import('./uri')} */\nmodule.exports = URIError;\n","'use strict';\n\n/** @type {import('./abs')} */\nmodule.exports = Math.abs;\n","'use strict';\n\n/** @type {import('./floor')} */\nmodule.exports = Math.floor;\n","'use strict';\n\n/** @type {import('./max')} */\nmodule.exports = Math.max;\n","'use strict';\n\n/** @type {import('./min')} */\nmodule.exports = Math.min;\n","'use strict';\n\n/** @type {import('./pow')} */\nmodule.exports = Math.pow;\n","'use strict';\n\n/** @type {import('./round')} */\nmodule.exports = Math.round;\n","'use strict';\n\n/** @type {import('./isNaN')} */\nmodule.exports = Number.isNaN || function isNaN(a) {\n\treturn a !== a;\n};\n","'use strict';\n\nvar $isNaN = require('./isNaN');\n\n/** @type {import('./sign')} */\nmodule.exports = function sign(number) {\n\tif ($isNaN(number) || number === 0) {\n\t\treturn number;\n\t}\n\treturn number < 0 ? -1 : +1;\n};\n","'use strict';\n\n/** @type {import('./gOPD')} */\nmodule.exports = Object.getOwnPropertyDescriptor;\n","'use strict';\n\n/** @type {import('.')} */\nvar $gOPD = require('./gOPD');\n\nif ($gOPD) {\n\ttry {\n\t\t$gOPD([], 'length');\n\t} catch (e) {\n\t\t// IE 8 has a broken gOPD\n\t\t$gOPD = null;\n\t}\n}\n\nmodule.exports = $gOPD;\n","'use strict';\n\n/** @type {import('.')} */\nvar $defineProperty = Object.defineProperty || false;\nif ($defineProperty) {\n\ttry {\n\t\t$defineProperty({}, 'a', { value: 1 });\n\t} catch (e) {\n\t\t// IE 8 has a broken defineProperty\n\t\t$defineProperty = false;\n\t}\n}\n\nmodule.exports = $defineProperty;\n","'use strict';\n\n/** @type {import('./shams')} */\n/* eslint complexity: [2, 18], max-statements: [2, 33] */\nmodule.exports = function hasSymbols() {\n\tif (typeof Symbol !== 'function' || typeof Object.getOwnPropertySymbols !== 'function') { return false; }\n\tif (typeof Symbol.iterator === 'symbol') { return true; }\n\n\t/** @type {{ [k in symbol]?: unknown }} */\n\tvar obj = {};\n\tvar sym = Symbol('test');\n\tvar symObj = Object(sym);\n\tif (typeof sym === 'string') { return false; }\n\n\tif (Object.prototype.toString.call(sym) !== '[object Symbol]') { return false; }\n\tif (Object.prototype.toString.call(symObj) !== '[object Symbol]') { return false; }\n\n\t// temp disabled per https://github.com/ljharb/object.assign/issues/17\n\t// if (sym instanceof Symbol) { return false; }\n\t// temp disabled per https://github.com/WebReflection/get-own-property-symbols/issues/4\n\t// if (!(symObj instanceof Symbol)) { return false; }\n\n\t// if (typeof Symbol.prototype.toString !== 'function') { return false; }\n\t// if (String(sym) !== Symbol.prototype.toString.call(sym)) { return false; }\n\n\tvar symVal = 42;\n\tobj[sym] = symVal;\n\tfor (var _ in obj) { return false; } // eslint-disable-line no-restricted-syntax, no-unreachable-loop\n\tif (typeof Object.keys === 'function' && Object.keys(obj).length !== 0) { return false; }\n\n\tif (typeof Object.getOwnPropertyNames === 'function' && Object.getOwnPropertyNames(obj).length !== 0) { return false; }\n\n\tvar syms = Object.getOwnPropertySymbols(obj);\n\tif (syms.length !== 1 || syms[0] !== sym) { return false; }\n\n\tif (!Object.prototype.propertyIsEnumerable.call(obj, sym)) { return false; }\n\n\tif (typeof Object.getOwnPropertyDescriptor === 'function') {\n\t\t// eslint-disable-next-line no-extra-parens\n\t\tvar descriptor = /** @type {PropertyDescriptor} */ (Object.getOwnPropertyDescriptor(obj, sym));\n\t\tif (descriptor.value !== symVal || descriptor.enumerable !== true) { return false; }\n\t}\n\n\treturn true;\n};\n","'use strict';\n\nvar origSymbol = typeof Symbol !== 'undefined' && Symbol;\nvar hasSymbolSham = require('./shams');\n\n/** @type {import('.')} */\nmodule.exports = function hasNativeSymbols() {\n\tif (typeof origSymbol !== 'function') { return false; }\n\tif (typeof Symbol !== 'function') { return false; }\n\tif (typeof origSymbol('foo') !== 'symbol') { return false; }\n\tif (typeof Symbol('bar') !== 'symbol') { return false; }\n\n\treturn hasSymbolSham();\n};\n","'use strict';\n\n/** @type {import('./Reflect.getPrototypeOf')} */\nmodule.exports = (typeof Reflect !== 'undefined' && Reflect.getPrototypeOf) || null;\n","'use strict';\n\nvar $Object = require('es-object-atoms');\n\n/** @type {import('./Object.getPrototypeOf')} */\nmodule.exports = $Object.getPrototypeOf || null;\n","'use strict';\n\n/* eslint no-invalid-this: 1 */\n\nvar ERROR_MESSAGE = 'Function.prototype.bind called on incompatible ';\nvar toStr = Object.prototype.toString;\nvar max = Math.max;\nvar funcType = '[object Function]';\n\nvar concatty = function concatty(a, b) {\n var arr = [];\n\n for (var i = 0; i < a.length; i += 1) {\n arr[i] = a[i];\n }\n for (var j = 0; j < b.length; j += 1) {\n arr[j + a.length] = b[j];\n }\n\n return arr;\n};\n\nvar slicy = function slicy(arrLike, offset) {\n var arr = [];\n for (var i = offset || 0, j = 0; i < arrLike.length; i += 1, j += 1) {\n arr[j] = arrLike[i];\n }\n return arr;\n};\n\nvar joiny = function (arr, joiner) {\n var str = '';\n for (var i = 0; i < arr.length; i += 1) {\n str += arr[i];\n if (i + 1 < arr.length) {\n str += joiner;\n }\n }\n return str;\n};\n\nmodule.exports = function bind(that) {\n var target = this;\n if (typeof target !== 'function' || toStr.apply(target) !== funcType) {\n throw new TypeError(ERROR_MESSAGE + target);\n }\n var args = slicy(arguments, 1);\n\n var bound;\n var binder = function () {\n if (this instanceof bound) {\n var result = target.apply(\n this,\n concatty(args, arguments)\n );\n if (Object(result) === result) {\n return result;\n }\n return this;\n }\n return target.apply(\n that,\n concatty(args, arguments)\n );\n\n };\n\n var boundLength = max(0, target.length - args.length);\n var boundArgs = [];\n for (var i = 0; i < boundLength; i++) {\n boundArgs[i] = '$' + i;\n }\n\n bound = Function('binder', 'return function (' + joiny(boundArgs, ',') + '){ return binder.apply(this,arguments); }')(binder);\n\n if (target.prototype) {\n var Empty = function Empty() {};\n Empty.prototype = target.prototype;\n bound.prototype = new Empty();\n Empty.prototype = null;\n }\n\n return bound;\n};\n","'use strict';\n\nvar implementation = require('./implementation');\n\nmodule.exports = Function.prototype.bind || implementation;\n","'use strict';\n\n/** @type {import('./functionCall')} */\nmodule.exports = Function.prototype.call;\n","'use strict';\n\n/** @type {import('./functionApply')} */\nmodule.exports = Function.prototype.apply;\n","'use strict';\n\n/** @type {import('./reflectApply')} */\nmodule.exports = typeof Reflect !== 'undefined' && Reflect && Reflect.apply;\n","'use strict';\n\nvar bind = require('function-bind');\n\nvar $apply = require('./functionApply');\nvar $call = require('./functionCall');\nvar $reflectApply = require('./reflectApply');\n\n/** @type {import('./actualApply')} */\nmodule.exports = $reflectApply || bind.call($call, $apply);\n","'use strict';\n\nvar bind = require('function-bind');\nvar $TypeError = require('es-errors/type');\n\nvar $call = require('./functionCall');\nvar $actualApply = require('./actualApply');\n\n/** @type {(args: [Function, thisArg?: unknown, ...args: unknown[]]) => Function} TODO FIXME, find a way to use import('.') */\nmodule.exports = function callBindBasic(args) {\n\tif (args.length < 1 || typeof args[0] !== 'function') {\n\t\tthrow new $TypeError('a function is required');\n\t}\n\treturn $actualApply(bind, $call, args);\n};\n","'use strict';\n\nvar callBind = require('call-bind-apply-helpers');\nvar gOPD = require('gopd');\n\nvar hasProtoAccessor;\ntry {\n\t// eslint-disable-next-line no-extra-parens, no-proto\n\thasProtoAccessor = /** @type {{ __proto__?: typeof Array.prototype }} */ ([]).__proto__ === Array.prototype;\n} catch (e) {\n\tif (!e || typeof e !== 'object' || !('code' in e) || e.code !== 'ERR_PROTO_ACCESS') {\n\t\tthrow e;\n\t}\n}\n\n// eslint-disable-next-line no-extra-parens\nvar desc = !!hasProtoAccessor && gOPD && gOPD(Object.prototype, /** @type {keyof typeof Object.prototype} */ ('__proto__'));\n\nvar $Object = Object;\nvar $getPrototypeOf = $Object.getPrototypeOf;\n\n/** @type {import('./get')} */\nmodule.exports = desc && typeof desc.get === 'function'\n\t? callBind([desc.get])\n\t: typeof $getPrototypeOf === 'function'\n\t\t? /** @type {import('./get')} */ function getDunder(value) {\n\t\t\t// eslint-disable-next-line eqeqeq\n\t\t\treturn $getPrototypeOf(value == null ? value : $Object(value));\n\t\t}\n\t\t: false;\n","'use strict';\n\nvar reflectGetProto = require('./Reflect.getPrototypeOf');\nvar originalGetProto = require('./Object.getPrototypeOf');\n\nvar getDunderProto = require('dunder-proto/get');\n\n/** @type {import('.')} */\nmodule.exports = reflectGetProto\n\t? function getProto(O) {\n\t\t// @ts-expect-error TS can't narrow inside a closure, for some reason\n\t\treturn reflectGetProto(O);\n\t}\n\t: originalGetProto\n\t\t? function getProto(O) {\n\t\t\tif (!O || (typeof O !== 'object' && typeof O !== 'function')) {\n\t\t\t\tthrow new TypeError('getProto: not an object');\n\t\t\t}\n\t\t\t// @ts-expect-error TS can't narrow inside a closure, for some reason\n\t\t\treturn originalGetProto(O);\n\t\t}\n\t\t: getDunderProto\n\t\t\t? function getProto(O) {\n\t\t\t\t// @ts-expect-error TS can't narrow inside a closure, for some reason\n\t\t\t\treturn getDunderProto(O);\n\t\t\t}\n\t\t\t: null;\n","'use strict';\n\nvar call = Function.prototype.call;\nvar $hasOwn = Object.prototype.hasOwnProperty;\nvar bind = require('function-bind');\n\n/** @type {import('.')} */\nmodule.exports = bind.call(call, $hasOwn);\n","'use strict';\n\nvar undefined;\n\nvar $Object = require('es-object-atoms');\n\nvar $Error = require('es-errors');\nvar $EvalError = require('es-errors/eval');\nvar $RangeError = require('es-errors/range');\nvar $ReferenceError = require('es-errors/ref');\nvar $SyntaxError = require('es-errors/syntax');\nvar $TypeError = require('es-errors/type');\nvar $URIError = require('es-errors/uri');\n\nvar abs = require('math-intrinsics/abs');\nvar floor = require('math-intrinsics/floor');\nvar max = require('math-intrinsics/max');\nvar min = require('math-intrinsics/min');\nvar pow = require('math-intrinsics/pow');\nvar round = require('math-intrinsics/round');\nvar sign = require('math-intrinsics/sign');\n\nvar $Function = Function;\n\n// eslint-disable-next-line consistent-return\nvar getEvalledConstructor = function (expressionSyntax) {\n\ttry {\n\t\treturn $Function('\"use strict\"; return (' + expressionSyntax + ').constructor;')();\n\t} catch (e) {}\n};\n\nvar $gOPD = require('gopd');\nvar $defineProperty = require('es-define-property');\n\nvar throwTypeError = function () {\n\tthrow new $TypeError();\n};\nvar ThrowTypeError = $gOPD\n\t? (function () {\n\t\ttry {\n\t\t\t// eslint-disable-next-line no-unused-expressions, no-caller, no-restricted-properties\n\t\t\targuments.callee; // IE 8 does not throw here\n\t\t\treturn throwTypeError;\n\t\t} catch (calleeThrows) {\n\t\t\ttry {\n\t\t\t\t// IE 8 throws on Object.getOwnPropertyDescriptor(arguments, '')\n\t\t\t\treturn $gOPD(arguments, 'callee').get;\n\t\t\t} catch (gOPDthrows) {\n\t\t\t\treturn throwTypeError;\n\t\t\t}\n\t\t}\n\t}())\n\t: throwTypeError;\n\nvar hasSymbols = require('has-symbols')();\n\nvar getProto = require('get-proto');\nvar $ObjectGPO = require('get-proto/Object.getPrototypeOf');\nvar $ReflectGPO = require('get-proto/Reflect.getPrototypeOf');\n\nvar $apply = require('call-bind-apply-helpers/functionApply');\nvar $call = require('call-bind-apply-helpers/functionCall');\n\nvar needsEval = {};\n\nvar TypedArray = typeof Uint8Array === 'undefined' || !getProto ? undefined : getProto(Uint8Array);\n\nvar INTRINSICS = {\n\t__proto__: null,\n\t'%AggregateError%': typeof AggregateError === 'undefined' ? undefined : AggregateError,\n\t'%Array%': Array,\n\t'%ArrayBuffer%': typeof ArrayBuffer === 'undefined' ? undefined : ArrayBuffer,\n\t'%ArrayIteratorPrototype%': hasSymbols && getProto ? getProto([][Symbol.iterator]()) : undefined,\n\t'%AsyncFromSyncIteratorPrototype%': undefined,\n\t'%AsyncFunction%': needsEval,\n\t'%AsyncGenerator%': needsEval,\n\t'%AsyncGeneratorFunction%': needsEval,\n\t'%AsyncIteratorPrototype%': needsEval,\n\t'%Atomics%': typeof Atomics === 'undefined' ? undefined : Atomics,\n\t'%BigInt%': typeof BigInt === 'undefined' ? undefined : BigInt,\n\t'%BigInt64Array%': typeof BigInt64Array === 'undefined' ? undefined : BigInt64Array,\n\t'%BigUint64Array%': typeof BigUint64Array === 'undefined' ? undefined : BigUint64Array,\n\t'%Boolean%': Boolean,\n\t'%DataView%': typeof DataView === 'undefined' ? undefined : DataView,\n\t'%Date%': Date,\n\t'%decodeURI%': decodeURI,\n\t'%decodeURIComponent%': decodeURIComponent,\n\t'%encodeURI%': encodeURI,\n\t'%encodeURIComponent%': encodeURIComponent,\n\t'%Error%': $Error,\n\t'%eval%': eval, // eslint-disable-line no-eval\n\t'%EvalError%': $EvalError,\n\t'%Float16Array%': typeof Float16Array === 'undefined' ? undefined : Float16Array,\n\t'%Float32Array%': typeof Float32Array === 'undefined' ? undefined : Float32Array,\n\t'%Float64Array%': typeof Float64Array === 'undefined' ? undefined : Float64Array,\n\t'%FinalizationRegistry%': typeof FinalizationRegistry === 'undefined' ? undefined : FinalizationRegistry,\n\t'%Function%': $Function,\n\t'%GeneratorFunction%': needsEval,\n\t'%Int8Array%': typeof Int8Array === 'undefined' ? undefined : Int8Array,\n\t'%Int16Array%': typeof Int16Array === 'undefined' ? undefined : Int16Array,\n\t'%Int32Array%': typeof Int32Array === 'undefined' ? undefined : Int32Array,\n\t'%isFinite%': isFinite,\n\t'%isNaN%': isNaN,\n\t'%IteratorPrototype%': hasSymbols && getProto ? getProto(getProto([][Symbol.iterator]())) : undefined,\n\t'%JSON%': typeof JSON === 'object' ? JSON : undefined,\n\t'%Map%': typeof Map === 'undefined' ? undefined : Map,\n\t'%MapIteratorPrototype%': typeof Map === 'undefined' || !hasSymbols || !getProto ? undefined : getProto(new Map()[Symbol.iterator]()),\n\t'%Math%': Math,\n\t'%Number%': Number,\n\t'%Object%': $Object,\n\t'%Object.getOwnPropertyDescriptor%': $gOPD,\n\t'%parseFloat%': parseFloat,\n\t'%parseInt%': parseInt,\n\t'%Promise%': typeof Promise === 'undefined' ? undefined : Promise,\n\t'%Proxy%': typeof Proxy === 'undefined' ? undefined : Proxy,\n\t'%RangeError%': $RangeError,\n\t'%ReferenceError%': $ReferenceError,\n\t'%Reflect%': typeof Reflect === 'undefined' ? undefined : Reflect,\n\t'%RegExp%': RegExp,\n\t'%Set%': typeof Set === 'undefined' ? undefined : Set,\n\t'%SetIteratorPrototype%': typeof Set === 'undefined' || !hasSymbols || !getProto ? undefined : getProto(new Set()[Symbol.iterator]()),\n\t'%SharedArrayBuffer%': typeof SharedArrayBuffer === 'undefined' ? undefined : SharedArrayBuffer,\n\t'%String%': String,\n\t'%StringIteratorPrototype%': hasSymbols && getProto ? getProto(''[Symbol.iterator]()) : undefined,\n\t'%Symbol%': hasSymbols ? Symbol : undefined,\n\t'%SyntaxError%': $SyntaxError,\n\t'%ThrowTypeError%': ThrowTypeError,\n\t'%TypedArray%': TypedArray,\n\t'%TypeError%': $TypeError,\n\t'%Uint8Array%': typeof Uint8Array === 'undefined' ? undefined : Uint8Array,\n\t'%Uint8ClampedArray%': typeof Uint8ClampedArray === 'undefined' ? undefined : Uint8ClampedArray,\n\t'%Uint16Array%': typeof Uint16Array === 'undefined' ? undefined : Uint16Array,\n\t'%Uint32Array%': typeof Uint32Array === 'undefined' ? undefined : Uint32Array,\n\t'%URIError%': $URIError,\n\t'%WeakMap%': typeof WeakMap === 'undefined' ? undefined : WeakMap,\n\t'%WeakRef%': typeof WeakRef === 'undefined' ? undefined : WeakRef,\n\t'%WeakSet%': typeof WeakSet === 'undefined' ? undefined : WeakSet,\n\n\t'%Function.prototype.call%': $call,\n\t'%Function.prototype.apply%': $apply,\n\t'%Object.defineProperty%': $defineProperty,\n\t'%Object.getPrototypeOf%': $ObjectGPO,\n\t'%Math.abs%': abs,\n\t'%Math.floor%': floor,\n\t'%Math.max%': max,\n\t'%Math.min%': min,\n\t'%Math.pow%': pow,\n\t'%Math.round%': round,\n\t'%Math.sign%': sign,\n\t'%Reflect.getPrototypeOf%': $ReflectGPO\n};\n\nif (getProto) {\n\ttry {\n\t\tnull.error; // eslint-disable-line no-unused-expressions\n\t} catch (e) {\n\t\t// https://github.com/tc39/proposal-shadowrealm/pull/384#issuecomment-1364264229\n\t\tvar errorProto = getProto(getProto(e));\n\t\tINTRINSICS['%Error.prototype%'] = errorProto;\n\t}\n}\n\nvar doEval = function doEval(name) {\n\tvar value;\n\tif (name === '%AsyncFunction%') {\n\t\tvalue = getEvalledConstructor('async function () {}');\n\t} else if (name === '%GeneratorFunction%') {\n\t\tvalue = getEvalledConstructor('function* () {}');\n\t} else if (name === '%AsyncGeneratorFunction%') {\n\t\tvalue = getEvalledConstructor('async function* () {}');\n\t} else if (name === '%AsyncGenerator%') {\n\t\tvar fn = doEval('%AsyncGeneratorFunction%');\n\t\tif (fn) {\n\t\t\tvalue = fn.prototype;\n\t\t}\n\t} else if (name === '%AsyncIteratorPrototype%') {\n\t\tvar gen = doEval('%AsyncGenerator%');\n\t\tif (gen && getProto) {\n\t\t\tvalue = getProto(gen.prototype);\n\t\t}\n\t}\n\n\tINTRINSICS[name] = value;\n\n\treturn value;\n};\n\nvar LEGACY_ALIASES = {\n\t__proto__: null,\n\t'%ArrayBufferPrototype%': ['ArrayBuffer', 'prototype'],\n\t'%ArrayPrototype%': ['Array', 'prototype'],\n\t'%ArrayProto_entries%': ['Array', 'prototype', 'entries'],\n\t'%ArrayProto_forEach%': ['Array', 'prototype', 'forEach'],\n\t'%ArrayProto_keys%': ['Array', 'prototype', 'keys'],\n\t'%ArrayProto_values%': ['Array', 'prototype', 'values'],\n\t'%AsyncFunctionPrototype%': ['AsyncFunction', 'prototype'],\n\t'%AsyncGenerator%': ['AsyncGeneratorFunction', 'prototype'],\n\t'%AsyncGeneratorPrototype%': ['AsyncGeneratorFunction', 'prototype', 'prototype'],\n\t'%BooleanPrototype%': ['Boolean', 'prototype'],\n\t'%DataViewPrototype%': ['DataView', 'prototype'],\n\t'%DatePrototype%': ['Date', 'prototype'],\n\t'%ErrorPrototype%': ['Error', 'prototype'],\n\t'%EvalErrorPrototype%': ['EvalError', 'prototype'],\n\t'%Float32ArrayPrototype%': ['Float32Array', 'prototype'],\n\t'%Float64ArrayPrototype%': ['Float64Array', 'prototype'],\n\t'%FunctionPrototype%': ['Function', 'prototype'],\n\t'%Generator%': ['GeneratorFunction', 'prototype'],\n\t'%GeneratorPrototype%': ['GeneratorFunction', 'prototype', 'prototype'],\n\t'%Int8ArrayPrototype%': ['Int8Array', 'prototype'],\n\t'%Int16ArrayPrototype%': ['Int16Array', 'prototype'],\n\t'%Int32ArrayPrototype%': ['Int32Array', 'prototype'],\n\t'%JSONParse%': ['JSON', 'parse'],\n\t'%JSONStringify%': ['JSON', 'stringify'],\n\t'%MapPrototype%': ['Map', 'prototype'],\n\t'%NumberPrototype%': ['Number', 'prototype'],\n\t'%ObjectPrototype%': ['Object', 'prototype'],\n\t'%ObjProto_toString%': ['Object', 'prototype', 'toString'],\n\t'%ObjProto_valueOf%': ['Object', 'prototype', 'valueOf'],\n\t'%PromisePrototype%': ['Promise', 'prototype'],\n\t'%PromiseProto_then%': ['Promise', 'prototype', 'then'],\n\t'%Promise_all%': ['Promise', 'all'],\n\t'%Promise_reject%': ['Promise', 'reject'],\n\t'%Promise_resolve%': ['Promise', 'resolve'],\n\t'%RangeErrorPrototype%': ['RangeError', 'prototype'],\n\t'%ReferenceErrorPrototype%': ['ReferenceError', 'prototype'],\n\t'%RegExpPrototype%': ['RegExp', 'prototype'],\n\t'%SetPrototype%': ['Set', 'prototype'],\n\t'%SharedArrayBufferPrototype%': ['SharedArrayBuffer', 'prototype'],\n\t'%StringPrototype%': ['String', 'prototype'],\n\t'%SymbolPrototype%': ['Symbol', 'prototype'],\n\t'%SyntaxErrorPrototype%': ['SyntaxError', 'prototype'],\n\t'%TypedArrayPrototype%': ['TypedArray', 'prototype'],\n\t'%TypeErrorPrototype%': ['TypeError', 'prototype'],\n\t'%Uint8ArrayPrototype%': ['Uint8Array', 'prototype'],\n\t'%Uint8ClampedArrayPrototype%': ['Uint8ClampedArray', 'prototype'],\n\t'%Uint16ArrayPrototype%': ['Uint16Array', 'prototype'],\n\t'%Uint32ArrayPrototype%': ['Uint32Array', 'prototype'],\n\t'%URIErrorPrototype%': ['URIError', 'prototype'],\n\t'%WeakMapPrototype%': ['WeakMap', 'prototype'],\n\t'%WeakSetPrototype%': ['WeakSet', 'prototype']\n};\n\nvar bind = require('function-bind');\nvar hasOwn = require('hasown');\nvar $concat = bind.call($call, Array.prototype.concat);\nvar $spliceApply = bind.call($apply, Array.prototype.splice);\nvar $replace = bind.call($call, String.prototype.replace);\nvar $strSlice = bind.call($call, String.prototype.slice);\nvar $exec = bind.call($call, RegExp.prototype.exec);\n\n/* adapted from https://github.com/lodash/lodash/blob/4.17.15/dist/lodash.js#L6735-L6744 */\nvar rePropName = /[^%.[\\]]+|\\[(?:(-?\\d+(?:\\.\\d+)?)|([\"'])((?:(?!\\2)[^\\\\]|\\\\.)*?)\\2)\\]|(?=(?:\\.|\\[\\])(?:\\.|\\[\\]|%$))/g;\nvar reEscapeChar = /\\\\(\\\\)?/g; /** Used to match backslashes in property paths. */\nvar stringToPath = function stringToPath(string) {\n\tvar first = $strSlice(string, 0, 1);\n\tvar last = $strSlice(string, -1);\n\tif (first === '%' && last !== '%') {\n\t\tthrow new $SyntaxError('invalid intrinsic syntax, expected closing `%`');\n\t} else if (last === '%' && first !== '%') {\n\t\tthrow new $SyntaxError('invalid intrinsic syntax, expected opening `%`');\n\t}\n\tvar result = [];\n\t$replace(string, rePropName, function (match, number, quote, subString) {\n\t\tresult[result.length] = quote ? $replace(subString, reEscapeChar, '$1') : number || match;\n\t});\n\treturn result;\n};\n/* end adaptation */\n\nvar getBaseIntrinsic = function getBaseIntrinsic(name, allowMissing) {\n\tvar intrinsicName = name;\n\tvar alias;\n\tif (hasOwn(LEGACY_ALIASES, intrinsicName)) {\n\t\talias = LEGACY_ALIASES[intrinsicName];\n\t\tintrinsicName = '%' + alias[0] + '%';\n\t}\n\n\tif (hasOwn(INTRINSICS, intrinsicName)) {\n\t\tvar value = INTRINSICS[intrinsicName];\n\t\tif (value === needsEval) {\n\t\t\tvalue = doEval(intrinsicName);\n\t\t}\n\t\tif (typeof value === 'undefined' && !allowMissing) {\n\t\t\tthrow new $TypeError('intrinsic ' + name + ' exists, but is not available. Please file an issue!');\n\t\t}\n\n\t\treturn {\n\t\t\talias: alias,\n\t\t\tname: intrinsicName,\n\t\t\tvalue: value\n\t\t};\n\t}\n\n\tthrow new $SyntaxError('intrinsic ' + name + ' does not exist!');\n};\n\nmodule.exports = function GetIntrinsic(name, allowMissing) {\n\tif (typeof name !== 'string' || name.length === 0) {\n\t\tthrow new $TypeError('intrinsic name must be a non-empty string');\n\t}\n\tif (arguments.length > 1 && typeof allowMissing !== 'boolean') {\n\t\tthrow new $TypeError('\"allowMissing\" argument must be a boolean');\n\t}\n\n\tif ($exec(/^%?[^%]*%?$/, name) === null) {\n\t\tthrow new $SyntaxError('`%` may not be present anywhere but at the beginning and end of the intrinsic name');\n\t}\n\tvar parts = stringToPath(name);\n\tvar intrinsicBaseName = parts.length > 0 ? parts[0] : '';\n\n\tvar intrinsic = getBaseIntrinsic('%' + intrinsicBaseName + '%', allowMissing);\n\tvar intrinsicRealName = intrinsic.name;\n\tvar value = intrinsic.value;\n\tvar skipFurtherCaching = false;\n\n\tvar alias = intrinsic.alias;\n\tif (alias) {\n\t\tintrinsicBaseName = alias[0];\n\t\t$spliceApply(parts, $concat([0, 1], alias));\n\t}\n\n\tfor (var i = 1, isOwn = true; i < parts.length; i += 1) {\n\t\tvar part = parts[i];\n\t\tvar first = $strSlice(part, 0, 1);\n\t\tvar last = $strSlice(part, -1);\n\t\tif (\n\t\t\t(\n\t\t\t\t(first === '\"' || first === \"'\" || first === '`')\n\t\t\t\t|| (last === '\"' || last === \"'\" || last === '`')\n\t\t\t)\n\t\t\t&& first !== last\n\t\t) {\n\t\t\tthrow new $SyntaxError('property names with quotes must have matching quotes');\n\t\t}\n\t\tif (part === 'constructor' || !isOwn) {\n\t\t\tskipFurtherCaching = true;\n\t\t}\n\n\t\tintrinsicBaseName += '.' + part;\n\t\tintrinsicRealName = '%' + intrinsicBaseName + '%';\n\n\t\tif (hasOwn(INTRINSICS, intrinsicRealName)) {\n\t\t\tvalue = INTRINSICS[intrinsicRealName];\n\t\t} else if (value != null) {\n\t\t\tif (!(part in value)) {\n\t\t\t\tif (!allowMissing) {\n\t\t\t\t\tthrow new $TypeError('base intrinsic for ' + name + ' exists, but the property is not available.');\n\t\t\t\t}\n\t\t\t\treturn void undefined;\n\t\t\t}\n\t\t\tif ($gOPD && (i + 1) >= parts.length) {\n\t\t\t\tvar desc = $gOPD(value, part);\n\t\t\t\tisOwn = !!desc;\n\n\t\t\t\t// By convention, when a data property is converted to an accessor\n\t\t\t\t// property to emulate a data property that does not suffer from\n\t\t\t\t// the override mistake, that accessor's getter is marked with\n\t\t\t\t// an `originalValue` property. Here, when we detect this, we\n\t\t\t\t// uphold the illusion by pretending to see that original data\n\t\t\t\t// property, i.e., returning the value rather than the getter\n\t\t\t\t// itself.\n\t\t\t\tif (isOwn && 'get' in desc && !('originalValue' in desc.get)) {\n\t\t\t\t\tvalue = desc.get;\n\t\t\t\t} else {\n\t\t\t\t\tvalue = value[part];\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\tisOwn = hasOwn(value, part);\n\t\t\t\tvalue = value[part];\n\t\t\t}\n\n\t\t\tif (isOwn && !skipFurtherCaching) {\n\t\t\t\tINTRINSICS[intrinsicRealName] = value;\n\t\t\t}\n\t\t}\n\t}\n\treturn value;\n};\n","'use strict';\n\nvar GetIntrinsic = require('get-intrinsic');\n\nvar callBindBasic = require('call-bind-apply-helpers');\n\n/** @type {(thisArg: string, searchString: string, position?: number) => number} */\nvar $indexOf = callBindBasic([GetIntrinsic('%String.prototype.indexOf%')]);\n\n/** @type {import('.')} */\nmodule.exports = function callBoundIntrinsic(name, allowMissing) {\n\t/* eslint no-extra-parens: 0 */\n\n\tvar intrinsic = /** @type {(this: unknown, ...args: unknown[]) => unknown} */ (GetIntrinsic(name, !!allowMissing));\n\tif (typeof intrinsic === 'function' && $indexOf(name, '.prototype.') > -1) {\n\t\treturn callBindBasic(/** @type {const} */ ([intrinsic]));\n\t}\n\treturn intrinsic;\n};\n","'use strict';\n\nvar GetIntrinsic = require('get-intrinsic');\nvar callBound = require('call-bound');\nvar inspect = require('object-inspect');\n\nvar $TypeError = require('es-errors/type');\nvar $Map = GetIntrinsic('%Map%', true);\n\n/** @type {(thisArg: Map, key: K) => V} */\nvar $mapGet = callBound('Map.prototype.get', true);\n/** @type {(thisArg: Map, key: K, value: V) => void} */\nvar $mapSet = callBound('Map.prototype.set', true);\n/** @type {(thisArg: Map, key: K) => boolean} */\nvar $mapHas = callBound('Map.prototype.has', true);\n/** @type {(thisArg: Map, key: K) => boolean} */\nvar $mapDelete = callBound('Map.prototype.delete', true);\n/** @type {(thisArg: Map) => number} */\nvar $mapSize = callBound('Map.prototype.size', true);\n\n/** @type {import('.')} */\nmodule.exports = !!$Map && /** @type {Exclude} */ function getSideChannelMap() {\n\t/** @typedef {ReturnType} Channel */\n\t/** @typedef {Parameters[0]} K */\n\t/** @typedef {Parameters[1]} V */\n\n\t/** @type {Map | undefined} */ var $m;\n\n\t/** @type {Channel} */\n\tvar channel = {\n\t\tassert: function (key) {\n\t\t\tif (!channel.has(key)) {\n\t\t\t\tthrow new $TypeError('Side channel does not contain ' + inspect(key));\n\t\t\t}\n\t\t},\n\t\t'delete': function (key) {\n\t\t\tif ($m) {\n\t\t\t\tvar result = $mapDelete($m, key);\n\t\t\t\tif ($mapSize($m) === 0) {\n\t\t\t\t\t$m = void undefined;\n\t\t\t\t}\n\t\t\t\treturn result;\n\t\t\t}\n\t\t\treturn false;\n\t\t},\n\t\tget: function (key) { // eslint-disable-line consistent-return\n\t\t\tif ($m) {\n\t\t\t\treturn $mapGet($m, key);\n\t\t\t}\n\t\t},\n\t\thas: function (key) {\n\t\t\tif ($m) {\n\t\t\t\treturn $mapHas($m, key);\n\t\t\t}\n\t\t\treturn false;\n\t\t},\n\t\tset: function (key, value) {\n\t\t\tif (!$m) {\n\t\t\t\t// @ts-expect-error TS can't handle narrowing a variable inside a closure\n\t\t\t\t$m = new $Map();\n\t\t\t}\n\t\t\t$mapSet($m, key, value);\n\t\t}\n\t};\n\n\t// @ts-expect-error TODO: figure out why TS is erroring here\n\treturn channel;\n};\n","'use strict';\n\nvar GetIntrinsic = require('get-intrinsic');\nvar callBound = require('call-bound');\nvar inspect = require('object-inspect');\nvar getSideChannelMap = require('side-channel-map');\n\nvar $TypeError = require('es-errors/type');\nvar $WeakMap = GetIntrinsic('%WeakMap%', true);\n\n/** @type {(thisArg: WeakMap, key: K) => V} */\nvar $weakMapGet = callBound('WeakMap.prototype.get', true);\n/** @type {(thisArg: WeakMap, key: K, value: V) => void} */\nvar $weakMapSet = callBound('WeakMap.prototype.set', true);\n/** @type {(thisArg: WeakMap, key: K) => boolean} */\nvar $weakMapHas = callBound('WeakMap.prototype.has', true);\n/** @type {(thisArg: WeakMap, key: K) => boolean} */\nvar $weakMapDelete = callBound('WeakMap.prototype.delete', true);\n\n/** @type {import('.')} */\nmodule.exports = $WeakMap\n\t? /** @type {Exclude} */ function getSideChannelWeakMap() {\n\t\t/** @typedef {ReturnType} Channel */\n\t\t/** @typedef {Parameters[0]} K */\n\t\t/** @typedef {Parameters[1]} V */\n\n\t\t/** @type {WeakMap | undefined} */ var $wm;\n\t\t/** @type {Channel | undefined} */ var $m;\n\n\t\t/** @type {Channel} */\n\t\tvar channel = {\n\t\t\tassert: function (key) {\n\t\t\t\tif (!channel.has(key)) {\n\t\t\t\t\tthrow new $TypeError('Side channel does not contain ' + inspect(key));\n\t\t\t\t}\n\t\t\t},\n\t\t\t'delete': function (key) {\n\t\t\t\tif ($WeakMap && key && (typeof key === 'object' || typeof key === 'function')) {\n\t\t\t\t\tif ($wm) {\n\t\t\t\t\t\treturn $weakMapDelete($wm, key);\n\t\t\t\t\t}\n\t\t\t\t} else if (getSideChannelMap) {\n\t\t\t\t\tif ($m) {\n\t\t\t\t\t\treturn $m['delete'](key);\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t\treturn false;\n\t\t\t},\n\t\t\tget: function (key) {\n\t\t\t\tif ($WeakMap && key && (typeof key === 'object' || typeof key === 'function')) {\n\t\t\t\t\tif ($wm) {\n\t\t\t\t\t\treturn $weakMapGet($wm, key);\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t\treturn $m && $m.get(key);\n\t\t\t},\n\t\t\thas: function (key) {\n\t\t\t\tif ($WeakMap && key && (typeof key === 'object' || typeof key === 'function')) {\n\t\t\t\t\tif ($wm) {\n\t\t\t\t\t\treturn $weakMapHas($wm, key);\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t\treturn !!$m && $m.has(key);\n\t\t\t},\n\t\t\tset: function (key, value) {\n\t\t\t\tif ($WeakMap && key && (typeof key === 'object' || typeof key === 'function')) {\n\t\t\t\t\tif (!$wm) {\n\t\t\t\t\t\t$wm = new $WeakMap();\n\t\t\t\t\t}\n\t\t\t\t\t$weakMapSet($wm, key, value);\n\t\t\t\t} else if (getSideChannelMap) {\n\t\t\t\t\tif (!$m) {\n\t\t\t\t\t\t$m = getSideChannelMap();\n\t\t\t\t\t}\n\t\t\t\t\t// eslint-disable-next-line no-extra-parens\n\t\t\t\t\t/** @type {NonNullable} */ ($m).set(key, value);\n\t\t\t\t}\n\t\t\t}\n\t\t};\n\n\t\t// @ts-expect-error TODO: figure out why this is erroring\n\t\treturn channel;\n\t}\n\t: getSideChannelMap;\n","'use strict';\n\nvar $TypeError = require('es-errors/type');\nvar inspect = require('object-inspect');\nvar getSideChannelList = require('side-channel-list');\nvar getSideChannelMap = require('side-channel-map');\nvar getSideChannelWeakMap = require('side-channel-weakmap');\n\nvar makeChannel = getSideChannelWeakMap || getSideChannelMap || getSideChannelList;\n\n/** @type {import('.')} */\nmodule.exports = function getSideChannel() {\n\t/** @typedef {ReturnType} Channel */\n\n\t/** @type {Channel | undefined} */ var $channelData;\n\n\t/** @type {Channel} */\n\tvar channel = {\n\t\tassert: function (key) {\n\t\t\tif (!channel.has(key)) {\n\t\t\t\tthrow new $TypeError('Side channel does not contain ' + inspect(key));\n\t\t\t}\n\t\t},\n\t\t'delete': function (key) {\n\t\t\treturn !!$channelData && $channelData['delete'](key);\n\t\t},\n\t\tget: function (key) {\n\t\t\treturn $channelData && $channelData.get(key);\n\t\t},\n\t\thas: function (key) {\n\t\t\treturn !!$channelData && $channelData.has(key);\n\t\t},\n\t\tset: function (key, value) {\n\t\t\tif (!$channelData) {\n\t\t\t\t$channelData = makeChannel();\n\t\t\t}\n\n\t\t\t$channelData.set(key, value);\n\t\t}\n\t};\n\t// @ts-expect-error TODO: figure out why this is erroring\n\treturn channel;\n};\n","'use strict';\n\nvar replace = String.prototype.replace;\nvar percentTwenties = /%20/g;\n\nvar Format = {\n RFC1738: 'RFC1738',\n RFC3986: 'RFC3986'\n};\n\nmodule.exports = {\n 'default': Format.RFC3986,\n formatters: {\n RFC1738: function (value) {\n return replace.call(value, percentTwenties, '+');\n },\n RFC3986: function (value) {\n return String(value);\n }\n },\n RFC1738: Format.RFC1738,\n RFC3986: Format.RFC3986\n};\n","'use strict';\n\nvar formats = require('./formats');\n\nvar has = Object.prototype.hasOwnProperty;\nvar isArray = Array.isArray;\n\nvar hexTable = (function () {\n var array = [];\n for (var i = 0; i < 256; ++i) {\n array.push('%' + ((i < 16 ? '0' : '') + i.toString(16)).toUpperCase());\n }\n\n return array;\n}());\n\nvar compactQueue = function compactQueue(queue) {\n while (queue.length > 1) {\n var item = queue.pop();\n var obj = item.obj[item.prop];\n\n if (isArray(obj)) {\n var compacted = [];\n\n for (var j = 0; j < obj.length; ++j) {\n if (typeof obj[j] !== 'undefined') {\n compacted.push(obj[j]);\n }\n }\n\n item.obj[item.prop] = compacted;\n }\n }\n};\n\nvar arrayToObject = function arrayToObject(source, options) {\n var obj = options && options.plainObjects ? Object.create(null) : {};\n for (var i = 0; i < source.length; ++i) {\n if (typeof source[i] !== 'undefined') {\n obj[i] = source[i];\n }\n }\n\n return obj;\n};\n\nvar merge = function merge(target, source, options) {\n /* eslint no-param-reassign: 0 */\n if (!source) {\n return target;\n }\n\n if (typeof source !== 'object') {\n if (isArray(target)) {\n target.push(source);\n } else if (target && typeof target === 'object') {\n if ((options && (options.plainObjects || options.allowPrototypes)) || !has.call(Object.prototype, source)) {\n target[source] = true;\n }\n } else {\n return [target, source];\n }\n\n return target;\n }\n\n if (!target || typeof target !== 'object') {\n return [target].concat(source);\n }\n\n var mergeTarget = target;\n if (isArray(target) && !isArray(source)) {\n mergeTarget = arrayToObject(target, options);\n }\n\n if (isArray(target) && isArray(source)) {\n source.forEach(function (item, i) {\n if (has.call(target, i)) {\n var targetItem = target[i];\n if (targetItem && typeof targetItem === 'object' && item && typeof item === 'object') {\n target[i] = merge(targetItem, item, options);\n } else {\n target.push(item);\n }\n } else {\n target[i] = item;\n }\n });\n return target;\n }\n\n return Object.keys(source).reduce(function (acc, key) {\n var value = source[key];\n\n if (has.call(acc, key)) {\n acc[key] = merge(acc[key], value, options);\n } else {\n acc[key] = value;\n }\n return acc;\n }, mergeTarget);\n};\n\nvar assign = function assignSingleSource(target, source) {\n return Object.keys(source).reduce(function (acc, key) {\n acc[key] = source[key];\n return acc;\n }, target);\n};\n\nvar decode = function (str, decoder, charset) {\n var strWithoutPlus = str.replace(/\\+/g, ' ');\n if (charset === 'iso-8859-1') {\n // unescape never throws, no try...catch needed:\n return strWithoutPlus.replace(/%[0-9a-f]{2}/gi, unescape);\n }\n // utf-8\n try {\n return decodeURIComponent(strWithoutPlus);\n } catch (e) {\n return strWithoutPlus;\n }\n};\n\nvar limit = 1024;\n\n/* eslint operator-linebreak: [2, \"before\"] */\n\nvar encode = function encode(str, defaultEncoder, charset, kind, format) {\n // This code was originally written by Brian White (mscdex) for the io.js core querystring library.\n // It has been adapted here for stricter adherence to RFC 3986\n if (str.length === 0) {\n return str;\n }\n\n var string = str;\n if (typeof str === 'symbol') {\n string = Symbol.prototype.toString.call(str);\n } else if (typeof str !== 'string') {\n string = String(str);\n }\n\n if (charset === 'iso-8859-1') {\n return escape(string).replace(/%u[0-9a-f]{4}/gi, function ($0) {\n return '%26%23' + parseInt($0.slice(2), 16) + '%3B';\n });\n }\n\n var out = '';\n for (var j = 0; j < string.length; j += limit) {\n var segment = string.length >= limit ? string.slice(j, j + limit) : string;\n var arr = [];\n\n for (var i = 0; i < segment.length; ++i) {\n var c = segment.charCodeAt(i);\n if (\n c === 0x2D // -\n || c === 0x2E // .\n || c === 0x5F // _\n || c === 0x7E // ~\n || (c >= 0x30 && c <= 0x39) // 0-9\n || (c >= 0x41 && c <= 0x5A) // a-z\n || (c >= 0x61 && c <= 0x7A) // A-Z\n || (format === formats.RFC1738 && (c === 0x28 || c === 0x29)) // ( )\n ) {\n arr[arr.length] = segment.charAt(i);\n continue;\n }\n\n if (c < 0x80) {\n arr[arr.length] = hexTable[c];\n continue;\n }\n\n if (c < 0x800) {\n arr[arr.length] = hexTable[0xC0 | (c >> 6)]\n + hexTable[0x80 | (c & 0x3F)];\n continue;\n }\n\n if (c < 0xD800 || c >= 0xE000) {\n arr[arr.length] = hexTable[0xE0 | (c >> 12)]\n + hexTable[0x80 | ((c >> 6) & 0x3F)]\n + hexTable[0x80 | (c & 0x3F)];\n continue;\n }\n\n i += 1;\n c = 0x10000 + (((c & 0x3FF) << 10) | (segment.charCodeAt(i) & 0x3FF));\n\n arr[arr.length] = hexTable[0xF0 | (c >> 18)]\n + hexTable[0x80 | ((c >> 12) & 0x3F)]\n + hexTable[0x80 | ((c >> 6) & 0x3F)]\n + hexTable[0x80 | (c & 0x3F)];\n }\n\n out += arr.join('');\n }\n\n return out;\n};\n\nvar compact = function compact(value) {\n var queue = [{ obj: { o: value }, prop: 'o' }];\n var refs = [];\n\n for (var i = 0; i < queue.length; ++i) {\n var item = queue[i];\n var obj = item.obj[item.prop];\n\n var keys = Object.keys(obj);\n for (var j = 0; j < keys.length; ++j) {\n var key = keys[j];\n var val = obj[key];\n if (typeof val === 'object' && val !== null && refs.indexOf(val) === -1) {\n queue.push({ obj: obj, prop: key });\n refs.push(val);\n }\n }\n }\n\n compactQueue(queue);\n\n return value;\n};\n\nvar isRegExp = function isRegExp(obj) {\n return Object.prototype.toString.call(obj) === '[object RegExp]';\n};\n\nvar isBuffer = function isBuffer(obj) {\n if (!obj || typeof obj !== 'object') {\n return false;\n }\n\n return !!(obj.constructor && obj.constructor.isBuffer && obj.constructor.isBuffer(obj));\n};\n\nvar combine = function combine(a, b) {\n return [].concat(a, b);\n};\n\nvar maybeMap = function maybeMap(val, fn) {\n if (isArray(val)) {\n var mapped = [];\n for (var i = 0; i < val.length; i += 1) {\n mapped.push(fn(val[i]));\n }\n return mapped;\n }\n return fn(val);\n};\n\nmodule.exports = {\n arrayToObject: arrayToObject,\n assign: assign,\n combine: combine,\n compact: compact,\n decode: decode,\n encode: encode,\n isBuffer: isBuffer,\n isRegExp: isRegExp,\n maybeMap: maybeMap,\n merge: merge\n};\n","'use strict';\n\nvar getSideChannel = require('side-channel');\nvar utils = require('./utils');\nvar formats = require('./formats');\nvar has = Object.prototype.hasOwnProperty;\n\nvar arrayPrefixGenerators = {\n brackets: function brackets(prefix) {\n return prefix + '[]';\n },\n comma: 'comma',\n indices: function indices(prefix, key) {\n return prefix + '[' + key + ']';\n },\n repeat: function repeat(prefix) {\n return prefix;\n }\n};\n\nvar isArray = Array.isArray;\nvar push = Array.prototype.push;\nvar pushToArray = function (arr, valueOrArray) {\n push.apply(arr, isArray(valueOrArray) ? valueOrArray : [valueOrArray]);\n};\n\nvar toISO = Date.prototype.toISOString;\n\nvar defaultFormat = formats['default'];\nvar defaults = {\n addQueryPrefix: false,\n allowDots: false,\n allowEmptyArrays: false,\n arrayFormat: 'indices',\n charset: 'utf-8',\n charsetSentinel: false,\n delimiter: '&',\n encode: true,\n encodeDotInKeys: false,\n encoder: utils.encode,\n encodeValuesOnly: false,\n format: defaultFormat,\n formatter: formats.formatters[defaultFormat],\n // deprecated\n indices: false,\n serializeDate: function serializeDate(date) {\n return toISO.call(date);\n },\n skipNulls: false,\n strictNullHandling: false\n};\n\nvar isNonNullishPrimitive = function isNonNullishPrimitive(v) {\n return typeof v === 'string'\n || typeof v === 'number'\n || typeof v === 'boolean'\n || typeof v === 'symbol'\n || typeof v === 'bigint';\n};\n\nvar sentinel = {};\n\nvar stringify = function stringify(\n object,\n prefix,\n generateArrayPrefix,\n commaRoundTrip,\n allowEmptyArrays,\n strictNullHandling,\n skipNulls,\n encodeDotInKeys,\n encoder,\n filter,\n sort,\n allowDots,\n serializeDate,\n format,\n formatter,\n encodeValuesOnly,\n charset,\n sideChannel\n) {\n var obj = object;\n\n var tmpSc = sideChannel;\n var step = 0;\n var findFlag = false;\n while ((tmpSc = tmpSc.get(sentinel)) !== void undefined && !findFlag) {\n // Where object last appeared in the ref tree\n var pos = tmpSc.get(object);\n step += 1;\n if (typeof pos !== 'undefined') {\n if (pos === step) {\n throw new RangeError('Cyclic object value');\n } else {\n findFlag = true; // Break while\n }\n }\n if (typeof tmpSc.get(sentinel) === 'undefined') {\n step = 0;\n }\n }\n\n if (typeof filter === 'function') {\n obj = filter(prefix, obj);\n } else if (obj instanceof Date) {\n obj = serializeDate(obj);\n } else if (generateArrayPrefix === 'comma' && isArray(obj)) {\n obj = utils.maybeMap(obj, function (value) {\n if (value instanceof Date) {\n return serializeDate(value);\n }\n return value;\n });\n }\n\n if (obj === null) {\n if (strictNullHandling) {\n return encoder && !encodeValuesOnly ? encoder(prefix, defaults.encoder, charset, 'key', format) : prefix;\n }\n\n obj = '';\n }\n\n if (isNonNullishPrimitive(obj) || utils.isBuffer(obj)) {\n if (encoder) {\n var keyValue = encodeValuesOnly ? prefix : encoder(prefix, defaults.encoder, charset, 'key', format);\n return [formatter(keyValue) + '=' + formatter(encoder(obj, defaults.encoder, charset, 'value', format))];\n }\n return [formatter(prefix) + '=' + formatter(String(obj))];\n }\n\n var values = [];\n\n if (typeof obj === 'undefined') {\n return values;\n }\n\n var objKeys;\n if (generateArrayPrefix === 'comma' && isArray(obj)) {\n // we need to join elements in\n if (encodeValuesOnly && encoder) {\n obj = utils.maybeMap(obj, encoder);\n }\n objKeys = [{ value: obj.length > 0 ? obj.join(',') || null : void undefined }];\n } else if (isArray(filter)) {\n objKeys = filter;\n } else {\n var keys = Object.keys(obj);\n objKeys = sort ? keys.sort(sort) : keys;\n }\n\n var encodedPrefix = encodeDotInKeys ? prefix.replace(/\\./g, '%2E') : prefix;\n\n var adjustedPrefix = commaRoundTrip && isArray(obj) && obj.length === 1 ? encodedPrefix + '[]' : encodedPrefix;\n\n if (allowEmptyArrays && isArray(obj) && obj.length === 0) {\n return adjustedPrefix + '[]';\n }\n\n for (var j = 0; j < objKeys.length; ++j) {\n var key = objKeys[j];\n var value = typeof key === 'object' && typeof key.value !== 'undefined' ? key.value : obj[key];\n\n if (skipNulls && value === null) {\n continue;\n }\n\n var encodedKey = allowDots && encodeDotInKeys ? key.replace(/\\./g, '%2E') : key;\n var keyPrefix = isArray(obj)\n ? typeof generateArrayPrefix === 'function' ? generateArrayPrefix(adjustedPrefix, encodedKey) : adjustedPrefix\n : adjustedPrefix + (allowDots ? '.' + encodedKey : '[' + encodedKey + ']');\n\n sideChannel.set(object, step);\n var valueSideChannel = getSideChannel();\n valueSideChannel.set(sentinel, sideChannel);\n pushToArray(values, stringify(\n value,\n keyPrefix,\n generateArrayPrefix,\n commaRoundTrip,\n allowEmptyArrays,\n strictNullHandling,\n skipNulls,\n encodeDotInKeys,\n generateArrayPrefix === 'comma' && encodeValuesOnly && isArray(obj) ? null : encoder,\n filter,\n sort,\n allowDots,\n serializeDate,\n format,\n formatter,\n encodeValuesOnly,\n charset,\n valueSideChannel\n ));\n }\n\n return values;\n};\n\nvar normalizeStringifyOptions = function normalizeStringifyOptions(opts) {\n if (!opts) {\n return defaults;\n }\n\n if (typeof opts.allowEmptyArrays !== 'undefined' && typeof opts.allowEmptyArrays !== 'boolean') {\n throw new TypeError('`allowEmptyArrays` option can only be `true` or `false`, when provided');\n }\n\n if (typeof opts.encodeDotInKeys !== 'undefined' && typeof opts.encodeDotInKeys !== 'boolean') {\n throw new TypeError('`encodeDotInKeys` option can only be `true` or `false`, when provided');\n }\n\n if (opts.encoder !== null && typeof opts.encoder !== 'undefined' && typeof opts.encoder !== 'function') {\n throw new TypeError('Encoder has to be a function.');\n }\n\n var charset = opts.charset || defaults.charset;\n if (typeof opts.charset !== 'undefined' && opts.charset !== 'utf-8' && opts.charset !== 'iso-8859-1') {\n throw new TypeError('The charset option must be either utf-8, iso-8859-1, or undefined');\n }\n\n var format = formats['default'];\n if (typeof opts.format !== 'undefined') {\n if (!has.call(formats.formatters, opts.format)) {\n throw new TypeError('Unknown format option provided.');\n }\n format = opts.format;\n }\n var formatter = formats.formatters[format];\n\n var filter = defaults.filter;\n if (typeof opts.filter === 'function' || isArray(opts.filter)) {\n filter = opts.filter;\n }\n\n var arrayFormat;\n if (opts.arrayFormat in arrayPrefixGenerators) {\n arrayFormat = opts.arrayFormat;\n } else if ('indices' in opts) {\n arrayFormat = opts.indices ? 'indices' : 'repeat';\n } else {\n arrayFormat = defaults.arrayFormat;\n }\n\n if ('commaRoundTrip' in opts && typeof opts.commaRoundTrip !== 'boolean') {\n throw new TypeError('`commaRoundTrip` must be a boolean, or absent');\n }\n\n var allowDots = typeof opts.allowDots === 'undefined' ? opts.encodeDotInKeys === true ? true : defaults.allowDots : !!opts.allowDots;\n\n return {\n addQueryPrefix: typeof opts.addQueryPrefix === 'boolean' ? opts.addQueryPrefix : defaults.addQueryPrefix,\n allowDots: allowDots,\n allowEmptyArrays: typeof opts.allowEmptyArrays === 'boolean' ? !!opts.allowEmptyArrays : defaults.allowEmptyArrays,\n arrayFormat: arrayFormat,\n charset: charset,\n charsetSentinel: typeof opts.charsetSentinel === 'boolean' ? opts.charsetSentinel : defaults.charsetSentinel,\n commaRoundTrip: opts.commaRoundTrip,\n delimiter: typeof opts.delimiter === 'undefined' ? defaults.delimiter : opts.delimiter,\n encode: typeof opts.encode === 'boolean' ? opts.encode : defaults.encode,\n encodeDotInKeys: typeof opts.encodeDotInKeys === 'boolean' ? opts.encodeDotInKeys : defaults.encodeDotInKeys,\n encoder: typeof opts.encoder === 'function' ? opts.encoder : defaults.encoder,\n encodeValuesOnly: typeof opts.encodeValuesOnly === 'boolean' ? opts.encodeValuesOnly : defaults.encodeValuesOnly,\n filter: filter,\n format: format,\n formatter: formatter,\n serializeDate: typeof opts.serializeDate === 'function' ? opts.serializeDate : defaults.serializeDate,\n skipNulls: typeof opts.skipNulls === 'boolean' ? opts.skipNulls : defaults.skipNulls,\n sort: typeof opts.sort === 'function' ? opts.sort : null,\n strictNullHandling: typeof opts.strictNullHandling === 'boolean' ? opts.strictNullHandling : defaults.strictNullHandling\n };\n};\n\nmodule.exports = function (object, opts) {\n var obj = object;\n var options = normalizeStringifyOptions(opts);\n\n var objKeys;\n var filter;\n\n if (typeof options.filter === 'function') {\n filter = options.filter;\n obj = filter('', obj);\n } else if (isArray(options.filter)) {\n filter = options.filter;\n objKeys = filter;\n }\n\n var keys = [];\n\n if (typeof obj !== 'object' || obj === null) {\n return '';\n }\n\n var generateArrayPrefix = arrayPrefixGenerators[options.arrayFormat];\n var commaRoundTrip = generateArrayPrefix === 'comma' && options.commaRoundTrip;\n\n if (!objKeys) {\n objKeys = Object.keys(obj);\n }\n\n if (options.sort) {\n objKeys.sort(options.sort);\n }\n\n var sideChannel = getSideChannel();\n for (var i = 0; i < objKeys.length; ++i) {\n var key = objKeys[i];\n\n if (options.skipNulls && obj[key] === null) {\n continue;\n }\n pushToArray(keys, stringify(\n obj[key],\n key,\n generateArrayPrefix,\n commaRoundTrip,\n options.allowEmptyArrays,\n options.strictNullHandling,\n options.skipNulls,\n options.encodeDotInKeys,\n options.encode ? options.encoder : null,\n options.filter,\n options.sort,\n options.allowDots,\n options.serializeDate,\n options.format,\n options.formatter,\n options.encodeValuesOnly,\n options.charset,\n sideChannel\n ));\n }\n\n var joined = keys.join(options.delimiter);\n var prefix = options.addQueryPrefix === true ? '?' : '';\n\n if (options.charsetSentinel) {\n if (options.charset === 'iso-8859-1') {\n // encodeURIComponent('✓'), the \"numeric entity\" representation of a checkmark\n prefix += 'utf8=%26%2310003%3B&';\n } else {\n // encodeURIComponent('✓')\n prefix += 'utf8=%E2%9C%93&';\n }\n }\n\n return joined.length > 0 ? prefix + joined : '';\n};\n","'use strict';\n\nvar utils = require('./utils');\n\nvar has = Object.prototype.hasOwnProperty;\nvar isArray = Array.isArray;\n\nvar defaults = {\n allowDots: false,\n allowEmptyArrays: false,\n allowPrototypes: false,\n allowSparse: false,\n arrayLimit: 20,\n charset: 'utf-8',\n charsetSentinel: false,\n comma: false,\n decodeDotInKeys: false,\n decoder: utils.decode,\n delimiter: '&',\n depth: 5,\n duplicates: 'combine',\n ignoreQueryPrefix: false,\n interpretNumericEntities: false,\n parameterLimit: 1000,\n parseArrays: true,\n plainObjects: false,\n strictDepth: false,\n strictNullHandling: false\n};\n\nvar interpretNumericEntities = function (str) {\n return str.replace(/&#(\\d+);/g, function ($0, numberStr) {\n return String.fromCharCode(parseInt(numberStr, 10));\n });\n};\n\nvar parseArrayValue = function (val, options) {\n if (val && typeof val === 'string' && options.comma && val.indexOf(',') > -1) {\n return val.split(',');\n }\n\n return val;\n};\n\n// This is what browsers will submit when the ✓ character occurs in an\n// application/x-www-form-urlencoded body and the encoding of the page containing\n// the form is iso-8859-1, or when the submitted form has an accept-charset\n// attribute of iso-8859-1. Presumably also with other charsets that do not contain\n// the ✓ character, such as us-ascii.\nvar isoSentinel = 'utf8=%26%2310003%3B'; // encodeURIComponent('✓')\n\n// These are the percent-encoded utf-8 octets representing a checkmark, indicating that the request actually is utf-8 encoded.\nvar charsetSentinel = 'utf8=%E2%9C%93'; // encodeURIComponent('✓')\n\nvar parseValues = function parseQueryStringValues(str, options) {\n var obj = { __proto__: null };\n\n var cleanStr = options.ignoreQueryPrefix ? str.replace(/^\\?/, '') : str;\n cleanStr = cleanStr.replace(/%5B/gi, '[').replace(/%5D/gi, ']');\n var limit = options.parameterLimit === Infinity ? undefined : options.parameterLimit;\n var parts = cleanStr.split(options.delimiter, limit);\n var skipIndex = -1; // Keep track of where the utf8 sentinel was found\n var i;\n\n var charset = options.charset;\n if (options.charsetSentinel) {\n for (i = 0; i < parts.length; ++i) {\n if (parts[i].indexOf('utf8=') === 0) {\n if (parts[i] === charsetSentinel) {\n charset = 'utf-8';\n } else if (parts[i] === isoSentinel) {\n charset = 'iso-8859-1';\n }\n skipIndex = i;\n i = parts.length; // The eslint settings do not allow break;\n }\n }\n }\n\n for (i = 0; i < parts.length; ++i) {\n if (i === skipIndex) {\n continue;\n }\n var part = parts[i];\n\n var bracketEqualsPos = part.indexOf(']=');\n var pos = bracketEqualsPos === -1 ? part.indexOf('=') : bracketEqualsPos + 1;\n\n var key, val;\n if (pos === -1) {\n key = options.decoder(part, defaults.decoder, charset, 'key');\n val = options.strictNullHandling ? null : '';\n } else {\n key = options.decoder(part.slice(0, pos), defaults.decoder, charset, 'key');\n val = utils.maybeMap(\n parseArrayValue(part.slice(pos + 1), options),\n function (encodedVal) {\n return options.decoder(encodedVal, defaults.decoder, charset, 'value');\n }\n );\n }\n\n if (val && options.interpretNumericEntities && charset === 'iso-8859-1') {\n val = interpretNumericEntities(val);\n }\n\n if (part.indexOf('[]=') > -1) {\n val = isArray(val) ? [val] : val;\n }\n\n var existing = has.call(obj, key);\n if (existing && options.duplicates === 'combine') {\n obj[key] = utils.combine(obj[key], val);\n } else if (!existing || options.duplicates === 'last') {\n obj[key] = val;\n }\n }\n\n return obj;\n};\n\nvar parseObject = function (chain, val, options, valuesParsed) {\n var leaf = valuesParsed ? val : parseArrayValue(val, options);\n\n for (var i = chain.length - 1; i >= 0; --i) {\n var obj;\n var root = chain[i];\n\n if (root === '[]' && options.parseArrays) {\n obj = options.allowEmptyArrays && (leaf === '' || (options.strictNullHandling && leaf === null))\n ? []\n : [].concat(leaf);\n } else {\n obj = options.plainObjects ? Object.create(null) : {};\n var cleanRoot = root.charAt(0) === '[' && root.charAt(root.length - 1) === ']' ? root.slice(1, -1) : root;\n var decodedRoot = options.decodeDotInKeys ? cleanRoot.replace(/%2E/g, '.') : cleanRoot;\n var index = parseInt(decodedRoot, 10);\n if (!options.parseArrays && decodedRoot === '') {\n obj = { 0: leaf };\n } else if (\n !isNaN(index)\n && root !== decodedRoot\n && String(index) === decodedRoot\n && index >= 0\n && (options.parseArrays && index <= options.arrayLimit)\n ) {\n obj = [];\n obj[index] = leaf;\n } else if (decodedRoot !== '__proto__') {\n obj[decodedRoot] = leaf;\n }\n }\n\n leaf = obj;\n }\n\n return leaf;\n};\n\nvar parseKeys = function parseQueryStringKeys(givenKey, val, options, valuesParsed) {\n if (!givenKey) {\n return;\n }\n\n // Transform dot notation to bracket notation\n var key = options.allowDots ? givenKey.replace(/\\.([^.[]+)/g, '[$1]') : givenKey;\n\n // The regex chunks\n\n var brackets = /(\\[[^[\\]]*])/;\n var child = /(\\[[^[\\]]*])/g;\n\n // Get the parent\n\n var segment = options.depth > 0 && brackets.exec(key);\n var parent = segment ? key.slice(0, segment.index) : key;\n\n // Stash the parent if it exists\n\n var keys = [];\n if (parent) {\n // If we aren't using plain objects, optionally prefix keys that would overwrite object prototype properties\n if (!options.plainObjects && has.call(Object.prototype, parent)) {\n if (!options.allowPrototypes) {\n return;\n }\n }\n\n keys.push(parent);\n }\n\n // Loop through children appending to the array until we hit depth\n\n var i = 0;\n while (options.depth > 0 && (segment = child.exec(key)) !== null && i < options.depth) {\n i += 1;\n if (!options.plainObjects && has.call(Object.prototype, segment[1].slice(1, -1))) {\n if (!options.allowPrototypes) {\n return;\n }\n }\n keys.push(segment[1]);\n }\n\n // If there's a remainder, check strictDepth option for throw, else just add whatever is left\n\n if (segment) {\n if (options.strictDepth === true) {\n throw new RangeError('Input depth exceeded depth option of ' + options.depth + ' and strictDepth is true');\n }\n keys.push('[' + key.slice(segment.index) + ']');\n }\n\n return parseObject(keys, val, options, valuesParsed);\n};\n\nvar normalizeParseOptions = function normalizeParseOptions(opts) {\n if (!opts) {\n return defaults;\n }\n\n if (typeof opts.allowEmptyArrays !== 'undefined' && typeof opts.allowEmptyArrays !== 'boolean') {\n throw new TypeError('`allowEmptyArrays` option can only be `true` or `false`, when provided');\n }\n\n if (typeof opts.decodeDotInKeys !== 'undefined' && typeof opts.decodeDotInKeys !== 'boolean') {\n throw new TypeError('`decodeDotInKeys` option can only be `true` or `false`, when provided');\n }\n\n if (opts.decoder !== null && typeof opts.decoder !== 'undefined' && typeof opts.decoder !== 'function') {\n throw new TypeError('Decoder has to be a function.');\n }\n\n if (typeof opts.charset !== 'undefined' && opts.charset !== 'utf-8' && opts.charset !== 'iso-8859-1') {\n throw new TypeError('The charset option must be either utf-8, iso-8859-1, or undefined');\n }\n var charset = typeof opts.charset === 'undefined' ? defaults.charset : opts.charset;\n\n var duplicates = typeof opts.duplicates === 'undefined' ? defaults.duplicates : opts.duplicates;\n\n if (duplicates !== 'combine' && duplicates !== 'first' && duplicates !== 'last') {\n throw new TypeError('The duplicates option must be either combine, first, or last');\n }\n\n var allowDots = typeof opts.allowDots === 'undefined' ? opts.decodeDotInKeys === true ? true : defaults.allowDots : !!opts.allowDots;\n\n return {\n allowDots: allowDots,\n allowEmptyArrays: typeof opts.allowEmptyArrays === 'boolean' ? !!opts.allowEmptyArrays : defaults.allowEmptyArrays,\n allowPrototypes: typeof opts.allowPrototypes === 'boolean' ? opts.allowPrototypes : defaults.allowPrototypes,\n allowSparse: typeof opts.allowSparse === 'boolean' ? opts.allowSparse : defaults.allowSparse,\n arrayLimit: typeof opts.arrayLimit === 'number' ? opts.arrayLimit : defaults.arrayLimit,\n charset: charset,\n charsetSentinel: typeof opts.charsetSentinel === 'boolean' ? opts.charsetSentinel : defaults.charsetSentinel,\n comma: typeof opts.comma === 'boolean' ? opts.comma : defaults.comma,\n decodeDotInKeys: typeof opts.decodeDotInKeys === 'boolean' ? opts.decodeDotInKeys : defaults.decodeDotInKeys,\n decoder: typeof opts.decoder === 'function' ? opts.decoder : defaults.decoder,\n delimiter: typeof opts.delimiter === 'string' || utils.isRegExp(opts.delimiter) ? opts.delimiter : defaults.delimiter,\n // eslint-disable-next-line no-implicit-coercion, no-extra-parens\n depth: (typeof opts.depth === 'number' || opts.depth === false) ? +opts.depth : defaults.depth,\n duplicates: duplicates,\n ignoreQueryPrefix: opts.ignoreQueryPrefix === true,\n interpretNumericEntities: typeof opts.interpretNumericEntities === 'boolean' ? opts.interpretNumericEntities : defaults.interpretNumericEntities,\n parameterLimit: typeof opts.parameterLimit === 'number' ? opts.parameterLimit : defaults.parameterLimit,\n parseArrays: opts.parseArrays !== false,\n plainObjects: typeof opts.plainObjects === 'boolean' ? opts.plainObjects : defaults.plainObjects,\n strictDepth: typeof opts.strictDepth === 'boolean' ? !!opts.strictDepth : defaults.strictDepth,\n strictNullHandling: typeof opts.strictNullHandling === 'boolean' ? opts.strictNullHandling : defaults.strictNullHandling\n };\n};\n\nmodule.exports = function (str, opts) {\n var options = normalizeParseOptions(opts);\n\n if (str === '' || str === null || typeof str === 'undefined') {\n return options.plainObjects ? Object.create(null) : {};\n }\n\n var tempObj = typeof str === 'string' ? parseValues(str, options) : str;\n var obj = options.plainObjects ? Object.create(null) : {};\n\n // Iterate over the keys and setup the new object\n\n var keys = Object.keys(tempObj);\n for (var i = 0; i < keys.length; ++i) {\n var key = keys[i];\n var newObj = parseKeys(key, tempObj[key], options, typeof str === 'string');\n obj = utils.merge(obj, newObj, options);\n }\n\n if (options.allowSparse === true) {\n return obj;\n }\n\n return utils.compact(obj);\n};\n","'use strict';\n\nvar stringify = require('./stringify');\nvar parse = require('./parse');\nvar formats = require('./formats');\n\nmodule.exports = {\n formats: formats,\n parse: parse,\n stringify: stringify\n};\n","/*!\n * body-parser\n * Copyright(c) 2014 Jonathan Ong\n * Copyright(c) 2014-2015 Douglas Christopher Wilson\n * MIT Licensed\n */\n\n'use strict'\n\n/**\n * Module dependencies.\n * @private\n */\n\nvar bytes = require('bytes')\nvar contentType = require('content-type')\nvar createError = require('http-errors')\nvar debug = require('debug')('body-parser:urlencoded')\nvar deprecate = require('depd')('body-parser')\nvar read = require('../read')\nvar typeis = require('type-is')\n\n/**\n * Module exports.\n */\n\nmodule.exports = urlencoded\n\n/**\n * Cache of parser modules.\n */\n\nvar parsers = Object.create(null)\n\n/**\n * Create a middleware to parse urlencoded bodies.\n *\n * @param {object} [options]\n * @return {function}\n * @public\n */\n\nfunction urlencoded (options) {\n var opts = options || {}\n\n // notice because option default will flip in next major\n if (opts.extended === undefined) {\n deprecate('undefined extended: provide extended option')\n }\n\n var extended = opts.extended !== false\n var inflate = opts.inflate !== false\n var limit = typeof opts.limit !== 'number'\n ? bytes.parse(opts.limit || '100kb')\n : opts.limit\n var type = opts.type || 'application/x-www-form-urlencoded'\n var verify = opts.verify || false\n var depth = typeof opts.depth !== 'number'\n ? Number(opts.depth || 32)\n : opts.depth\n\n if (verify !== false && typeof verify !== 'function') {\n throw new TypeError('option verify must be function')\n }\n\n // create the appropriate query parser\n var queryparse = extended\n ? extendedparser(opts)\n : simpleparser(opts)\n\n // create the appropriate type checking function\n var shouldParse = typeof type !== 'function'\n ? typeChecker(type)\n : type\n\n function parse (body) {\n return body.length\n ? queryparse(body)\n : {}\n }\n\n return function urlencodedParser (req, res, next) {\n if (req._body) {\n debug('body already parsed')\n next()\n return\n }\n\n req.body = req.body || {}\n\n // skip requests without bodies\n if (!typeis.hasBody(req)) {\n debug('skip empty body')\n next()\n return\n }\n\n debug('content-type %j', req.headers['content-type'])\n\n // determine if request should be parsed\n if (!shouldParse(req)) {\n debug('skip parsing')\n next()\n return\n }\n\n // assert charset\n var charset = getCharset(req) || 'utf-8'\n if (charset !== 'utf-8') {\n debug('invalid charset')\n next(createError(415, 'unsupported charset \"' + charset.toUpperCase() + '\"', {\n charset: charset,\n type: 'charset.unsupported'\n }))\n return\n }\n\n // read\n read(req, res, next, parse, debug, {\n debug: debug,\n encoding: charset,\n inflate: inflate,\n limit: limit,\n verify: verify,\n depth: depth\n })\n }\n}\n\n/**\n * Get the extended query parser.\n *\n * @param {object} options\n */\n\nfunction extendedparser (options) {\n var parameterLimit = options.parameterLimit !== undefined\n ? options.parameterLimit\n : 1000\n\n var depth = typeof options.depth !== 'number'\n ? Number(options.depth || 32)\n : options.depth\n var parse = parser('qs')\n\n if (isNaN(parameterLimit) || parameterLimit < 1) {\n throw new TypeError('option parameterLimit must be a positive number')\n }\n\n if (isNaN(depth) || depth < 0) {\n throw new TypeError('option depth must be a zero or a positive number')\n }\n\n if (isFinite(parameterLimit)) {\n parameterLimit = parameterLimit | 0\n }\n\n return function queryparse (body) {\n var paramCount = parameterCount(body, parameterLimit)\n\n if (paramCount === undefined) {\n debug('too many parameters')\n throw createError(413, 'too many parameters', {\n type: 'parameters.too.many'\n })\n }\n\n var arrayLimit = Math.max(100, paramCount)\n\n debug('parse extended urlencoding')\n try {\n return parse(body, {\n allowPrototypes: true,\n arrayLimit: arrayLimit,\n depth: depth,\n strictDepth: true,\n parameterLimit: parameterLimit\n })\n } catch (err) {\n if (err instanceof RangeError) {\n throw createError(400, 'The input exceeded the depth', {\n type: 'querystring.parse.rangeError'\n })\n } else {\n throw err\n }\n }\n }\n}\n\n/**\n * Get the charset of a request.\n *\n * @param {object} req\n * @api private\n */\n\nfunction getCharset (req) {\n try {\n return (contentType.parse(req).parameters.charset || '').toLowerCase()\n } catch (e) {\n return undefined\n }\n}\n\n/**\n * Count the number of parameters, stopping once limit reached\n *\n * @param {string} body\n * @param {number} limit\n * @api private\n */\n\nfunction parameterCount (body, limit) {\n var count = 0\n var index = 0\n\n while ((index = body.indexOf('&', index)) !== -1) {\n count++\n index++\n\n if (count === limit) {\n return undefined\n }\n }\n\n return count\n}\n\n/**\n * Get parser for module name dynamically.\n *\n * @param {string} name\n * @return {function}\n * @api private\n */\n\nfunction parser (name) {\n var mod = parsers[name]\n\n if (mod !== undefined) {\n return mod.parse\n }\n\n // this uses a switch for static require analysis\n switch (name) {\n case 'qs':\n mod = require('qs')\n break\n case 'querystring':\n mod = require('querystring')\n break\n }\n\n // store to prevent invoking require()\n parsers[name] = mod\n\n return mod.parse\n}\n\n/**\n * Get the simple query parser.\n *\n * @param {object} options\n */\n\nfunction simpleparser (options) {\n var parameterLimit = options.parameterLimit !== undefined\n ? options.parameterLimit\n : 1000\n var parse = parser('querystring')\n\n if (isNaN(parameterLimit) || parameterLimit < 1) {\n throw new TypeError('option parameterLimit must be a positive number')\n }\n\n if (isFinite(parameterLimit)) {\n parameterLimit = parameterLimit | 0\n }\n\n return function queryparse (body) {\n var paramCount = parameterCount(body, parameterLimit)\n\n if (paramCount === undefined) {\n debug('too many parameters')\n throw createError(413, 'too many parameters', {\n type: 'parameters.too.many'\n })\n }\n\n debug('parse urlencoding')\n return parse(body, undefined, undefined, { maxKeys: parameterLimit })\n }\n}\n\n/**\n * Get the simple type checker.\n *\n * @param {string} type\n * @return {function}\n */\n\nfunction typeChecker (type) {\n return function checkType (req) {\n return Boolean(typeis(req, type))\n }\n}\n","/*!\n * body-parser\n * Copyright(c) 2014-2015 Douglas Christopher Wilson\n * MIT Licensed\n */\n\n'use strict'\n\n/**\n * Module dependencies.\n * @private\n */\n\nvar deprecate = require('depd')('body-parser')\n\n/**\n * Cache of loaded parsers.\n * @private\n */\n\nvar parsers = Object.create(null)\n\n/**\n * @typedef Parsers\n * @type {function}\n * @property {function} json\n * @property {function} raw\n * @property {function} text\n * @property {function} urlencoded\n */\n\n/**\n * Module exports.\n * @type {Parsers}\n */\n\nexports = module.exports = deprecate.function(bodyParser,\n 'bodyParser: use individual json/urlencoded middlewares')\n\n/**\n * JSON parser.\n * @public\n */\n\nObject.defineProperty(exports, 'json', {\n configurable: true,\n enumerable: true,\n get: createParserGetter('json')\n})\n\n/**\n * Raw parser.\n * @public\n */\n\nObject.defineProperty(exports, 'raw', {\n configurable: true,\n enumerable: true,\n get: createParserGetter('raw')\n})\n\n/**\n * Text parser.\n * @public\n */\n\nObject.defineProperty(exports, 'text', {\n configurable: true,\n enumerable: true,\n get: createParserGetter('text')\n})\n\n/**\n * URL-encoded parser.\n * @public\n */\n\nObject.defineProperty(exports, 'urlencoded', {\n configurable: true,\n enumerable: true,\n get: createParserGetter('urlencoded')\n})\n\n/**\n * Create a middleware to parse json and urlencoded bodies.\n *\n * @param {object} [options]\n * @return {function}\n * @deprecated\n * @public\n */\n\nfunction bodyParser (options) {\n // use default type for parsers\n var opts = Object.create(options || null, {\n type: {\n configurable: true,\n enumerable: true,\n value: undefined,\n writable: true\n }\n })\n\n var _urlencoded = exports.urlencoded(opts)\n var _json = exports.json(opts)\n\n return function bodyParser (req, res, next) {\n _json(req, res, function (err) {\n if (err) return next(err)\n _urlencoded(req, res, next)\n })\n }\n}\n\n/**\n * Create a getter for loading a parser.\n * @private\n */\n\nfunction createParserGetter (name) {\n return function get () {\n return loadParser(name)\n }\n}\n\n/**\n * Load a parser module.\n * @private\n */\n\nfunction loadParser (parserName) {\n var parser = parsers[parserName]\n\n if (parser !== undefined) {\n return parser\n }\n\n // this uses a switch for static require analysis\n switch (parserName) {\n case 'json':\n parser = require('./lib/types/json')\n break\n case 'raw':\n parser = require('./lib/types/raw')\n break\n case 'text':\n parser = require('./lib/types/text')\n break\n case 'urlencoded':\n parser = require('./lib/types/urlencoded')\n break\n }\n\n // store to prevent invoking require()\n return (parsers[parserName] = parser)\n}\n","/*!\n * merge-descriptors\n * Copyright(c) 2014 Jonathan Ong\n * Copyright(c) 2015 Douglas Christopher Wilson\n * MIT Licensed\n */\n\n'use strict'\n\n/**\n * Module exports.\n * @public\n */\n\nmodule.exports = merge\n\n/**\n * Module variables.\n * @private\n */\n\nvar hasOwnProperty = Object.prototype.hasOwnProperty\n\n/**\n * Merge the property descriptors of `src` into `dest`\n *\n * @param {object} dest Object to add descriptors to\n * @param {object} src Object to clone descriptors from\n * @param {boolean} [redefine=true] Redefine `dest` properties with `src` properties\n * @returns {object} Reference to dest\n * @public\n */\n\nfunction merge (dest, src, redefine) {\n if (!dest) {\n throw new TypeError('argument dest is required')\n }\n\n if (!src) {\n throw new TypeError('argument src is required')\n }\n\n if (redefine === undefined) {\n // Default to true\n redefine = true\n }\n\n Object.getOwnPropertyNames(src).forEach(function forEachOwnPropertyName (name) {\n if (!redefine && hasOwnProperty.call(dest, name)) {\n // Skip descriptor\n return\n }\n\n // Copy descriptor\n var descriptor = Object.getOwnPropertyDescriptor(src, name)\n Object.defineProperty(dest, name, descriptor)\n })\n\n return dest\n}\n","/**\n * Helpers.\n */\n\nvar s = 1000;\nvar m = s * 60;\nvar h = m * 60;\nvar d = h * 24;\nvar y = d * 365.25;\n\n/**\n * Parse or format the given `val`.\n *\n * Options:\n *\n * - `long` verbose formatting [false]\n *\n * @param {String|Number} val\n * @param {Object} [options]\n * @throws {Error} throw an error if val is not a non-empty string or a number\n * @return {String|Number}\n * @api public\n */\n\nmodule.exports = function(val, options) {\n options = options || {};\n var type = typeof val;\n if (type === 'string' && val.length > 0) {\n return parse(val);\n } else if (type === 'number' && isNaN(val) === false) {\n return options.long ? fmtLong(val) : fmtShort(val);\n }\n throw new Error(\n 'val is not a non-empty string or a valid number. val=' +\n JSON.stringify(val)\n );\n};\n\n/**\n * Parse the given `str` and return milliseconds.\n *\n * @param {String} str\n * @return {Number}\n * @api private\n */\n\nfunction parse(str) {\n str = String(str);\n if (str.length > 100) {\n return;\n }\n var match = /^((?:\\d+)?\\.?\\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|years?|yrs?|y)?$/i.exec(\n str\n );\n if (!match) {\n return;\n }\n var n = parseFloat(match[1]);\n var type = (match[2] || 'ms').toLowerCase();\n switch (type) {\n case 'years':\n case 'year':\n case 'yrs':\n case 'yr':\n case 'y':\n return n * y;\n case 'days':\n case 'day':\n case 'd':\n return n * d;\n case 'hours':\n case 'hour':\n case 'hrs':\n case 'hr':\n case 'h':\n return n * h;\n case 'minutes':\n case 'minute':\n case 'mins':\n case 'min':\n case 'm':\n return n * m;\n case 'seconds':\n case 'second':\n case 'secs':\n case 'sec':\n case 's':\n return n * s;\n case 'milliseconds':\n case 'millisecond':\n case 'msecs':\n case 'msec':\n case 'ms':\n return n;\n default:\n return undefined;\n }\n}\n\n/**\n * Short format for `ms`.\n *\n * @param {Number} ms\n * @return {String}\n * @api private\n */\n\nfunction fmtShort(ms) {\n if (ms >= d) {\n return Math.round(ms / d) + 'd';\n }\n if (ms >= h) {\n return Math.round(ms / h) + 'h';\n }\n if (ms >= m) {\n return Math.round(ms / m) + 'm';\n }\n if (ms >= s) {\n return Math.round(ms / s) + 's';\n }\n return ms + 'ms';\n}\n\n/**\n * Long format for `ms`.\n *\n * @param {Number} ms\n * @return {String}\n * @api private\n */\n\nfunction fmtLong(ms) {\n return plural(ms, d, 'day') ||\n plural(ms, h, 'hour') ||\n plural(ms, m, 'minute') ||\n plural(ms, s, 'second') ||\n ms + ' ms';\n}\n\n/**\n * Pluralization helper.\n */\n\nfunction plural(ms, n, name) {\n if (ms < n) {\n return;\n }\n if (ms < n * 1.5) {\n return Math.floor(ms / n) + ' ' + name;\n }\n return Math.ceil(ms / n) + ' ' + name + 's';\n}\n","\n/**\n * This is the common logic for both the Node.js and web browser\n * implementations of `debug()`.\n *\n * Expose `debug()` as the module.\n */\n\nexports = module.exports = createDebug.debug = createDebug['default'] = createDebug;\nexports.coerce = coerce;\nexports.disable = disable;\nexports.enable = enable;\nexports.enabled = enabled;\nexports.humanize = require('ms');\n\n/**\n * The currently active debug mode names, and names to skip.\n */\n\nexports.names = [];\nexports.skips = [];\n\n/**\n * Map of special \"%n\" handling functions, for the debug \"format\" argument.\n *\n * Valid key names are a single, lower or upper-case letter, i.e. \"n\" and \"N\".\n */\n\nexports.formatters = {};\n\n/**\n * Previous log timestamp.\n */\n\nvar prevTime;\n\n/**\n * Select a color.\n * @param {String} namespace\n * @return {Number}\n * @api private\n */\n\nfunction selectColor(namespace) {\n var hash = 0, i;\n\n for (i in namespace) {\n hash = ((hash << 5) - hash) + namespace.charCodeAt(i);\n hash |= 0; // Convert to 32bit integer\n }\n\n return exports.colors[Math.abs(hash) % exports.colors.length];\n}\n\n/**\n * Create a debugger with the given `namespace`.\n *\n * @param {String} namespace\n * @return {Function}\n * @api public\n */\n\nfunction createDebug(namespace) {\n\n function debug() {\n // disabled?\n if (!debug.enabled) return;\n\n var self = debug;\n\n // set `diff` timestamp\n var curr = +new Date();\n var ms = curr - (prevTime || curr);\n self.diff = ms;\n self.prev = prevTime;\n self.curr = curr;\n prevTime = curr;\n\n // turn the `arguments` into a proper Array\n var args = new Array(arguments.length);\n for (var i = 0; i < args.length; i++) {\n args[i] = arguments[i];\n }\n\n args[0] = exports.coerce(args[0]);\n\n if ('string' !== typeof args[0]) {\n // anything else let's inspect with %O\n args.unshift('%O');\n }\n\n // apply any `formatters` transformations\n var index = 0;\n args[0] = args[0].replace(/%([a-zA-Z%])/g, function(match, format) {\n // if we encounter an escaped % then don't increase the array index\n if (match === '%%') return match;\n index++;\n var formatter = exports.formatters[format];\n if ('function' === typeof formatter) {\n var val = args[index];\n match = formatter.call(self, val);\n\n // now we need to remove `args[index]` since it's inlined in the `format`\n args.splice(index, 1);\n index--;\n }\n return match;\n });\n\n // apply env-specific formatting (colors, etc.)\n exports.formatArgs.call(self, args);\n\n var logFn = debug.log || exports.log || console.log.bind(console);\n logFn.apply(self, args);\n }\n\n debug.namespace = namespace;\n debug.enabled = exports.enabled(namespace);\n debug.useColors = exports.useColors();\n debug.color = selectColor(namespace);\n\n // env-specific initialization logic for debug instances\n if ('function' === typeof exports.init) {\n exports.init(debug);\n }\n\n return debug;\n}\n\n/**\n * Enables a debug mode by namespaces. This can include modes\n * separated by a colon and wildcards.\n *\n * @param {String} namespaces\n * @api public\n */\n\nfunction enable(namespaces) {\n exports.save(namespaces);\n\n exports.names = [];\n exports.skips = [];\n\n var split = (typeof namespaces === 'string' ? namespaces : '').split(/[\\s,]+/);\n var len = split.length;\n\n for (var i = 0; i < len; i++) {\n if (!split[i]) continue; // ignore empty strings\n namespaces = split[i].replace(/\\*/g, '.*?');\n if (namespaces[0] === '-') {\n exports.skips.push(new RegExp('^' + namespaces.substr(1) + '$'));\n } else {\n exports.names.push(new RegExp('^' + namespaces + '$'));\n }\n }\n}\n\n/**\n * Disable debug output.\n *\n * @api public\n */\n\nfunction disable() {\n exports.enable('');\n}\n\n/**\n * Returns true if the given mode name is enabled, false otherwise.\n *\n * @param {String} name\n * @return {Boolean}\n * @api public\n */\n\nfunction enabled(name) {\n var i, len;\n for (i = 0, len = exports.skips.length; i < len; i++) {\n if (exports.skips[i].test(name)) {\n return false;\n }\n }\n for (i = 0, len = exports.names.length; i < len; i++) {\n if (exports.names[i].test(name)) {\n return true;\n }\n }\n return false;\n}\n\n/**\n * Coerce `val`.\n *\n * @param {Mixed} val\n * @return {Mixed}\n * @api private\n */\n\nfunction coerce(val) {\n if (val instanceof Error) return val.stack || val.message;\n return val;\n}\n","/**\n * This is the web browser implementation of `debug()`.\n *\n * Expose `debug()` as the module.\n */\n\nexports = module.exports = require('./debug');\nexports.log = log;\nexports.formatArgs = formatArgs;\nexports.save = save;\nexports.load = load;\nexports.useColors = useColors;\nexports.storage = 'undefined' != typeof chrome\n && 'undefined' != typeof chrome.storage\n ? chrome.storage.local\n : localstorage();\n\n/**\n * Colors.\n */\n\nexports.colors = [\n 'lightseagreen',\n 'forestgreen',\n 'goldenrod',\n 'dodgerblue',\n 'darkorchid',\n 'crimson'\n];\n\n/**\n * Currently only WebKit-based Web Inspectors, Firefox >= v31,\n * and the Firebug extension (any Firefox version) are known\n * to support \"%c\" CSS customizations.\n *\n * TODO: add a `localStorage` variable to explicitly enable/disable colors\n */\n\nfunction useColors() {\n // NB: In an Electron preload script, document will be defined but not fully\n // initialized. Since we know we're in Chrome, we'll just detect this case\n // explicitly\n if (typeof window !== 'undefined' && window.process && window.process.type === 'renderer') {\n return true;\n }\n\n // is webkit? http://stackoverflow.com/a/16459606/376773\n // document is undefined in react-native: https://github.com/facebook/react-native/pull/1632\n return (typeof document !== 'undefined' && document.documentElement && document.documentElement.style && document.documentElement.style.WebkitAppearance) ||\n // is firebug? http://stackoverflow.com/a/398120/376773\n (typeof window !== 'undefined' && window.console && (window.console.firebug || (window.console.exception && window.console.table))) ||\n // is firefox >= v31?\n // https://developer.mozilla.org/en-US/docs/Tools/Web_Console#Styling_messages\n (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/firefox\\/(\\d+)/) && parseInt(RegExp.$1, 10) >= 31) ||\n // double check webkit in userAgent just in case we are in a worker\n (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/applewebkit\\/(\\d+)/));\n}\n\n/**\n * Map %j to `JSON.stringify()`, since no Web Inspectors do that by default.\n */\n\nexports.formatters.j = function(v) {\n try {\n return JSON.stringify(v);\n } catch (err) {\n return '[UnexpectedJSONParseError]: ' + err.message;\n }\n};\n\n\n/**\n * Colorize log arguments if enabled.\n *\n * @api public\n */\n\nfunction formatArgs(args) {\n var useColors = this.useColors;\n\n args[0] = (useColors ? '%c' : '')\n + this.namespace\n + (useColors ? ' %c' : ' ')\n + args[0]\n + (useColors ? '%c ' : ' ')\n + '+' + exports.humanize(this.diff);\n\n if (!useColors) return;\n\n var c = 'color: ' + this.color;\n args.splice(1, 0, c, 'color: inherit')\n\n // the final \"%c\" is somewhat tricky, because there could be other\n // arguments passed either before or after the %c, so we need to\n // figure out the correct index to insert the CSS into\n var index = 0;\n var lastC = 0;\n args[0].replace(/%[a-zA-Z%]/g, function(match) {\n if ('%%' === match) return;\n index++;\n if ('%c' === match) {\n // we only are interested in the *last* %c\n // (the user may have provided their own)\n lastC = index;\n }\n });\n\n args.splice(lastC, 0, c);\n}\n\n/**\n * Invokes `console.log()` when available.\n * No-op when `console.log` is not a \"function\".\n *\n * @api public\n */\n\nfunction log() {\n // this hackery is required for IE8/9, where\n // the `console.log` function doesn't have 'apply'\n return 'object' === typeof console\n && console.log\n && Function.prototype.apply.call(console.log, console, arguments);\n}\n\n/**\n * Save `namespaces`.\n *\n * @param {String} namespaces\n * @api private\n */\n\nfunction save(namespaces) {\n try {\n if (null == namespaces) {\n exports.storage.removeItem('debug');\n } else {\n exports.storage.debug = namespaces;\n }\n } catch(e) {}\n}\n\n/**\n * Load `namespaces`.\n *\n * @return {String} returns the previously persisted debug modes\n * @api private\n */\n\nfunction load() {\n var r;\n try {\n r = exports.storage.debug;\n } catch(e) {}\n\n // If debug isn't set in LS, and we're in Electron, try to load $DEBUG\n if (!r && typeof process !== 'undefined' && 'env' in process) {\n r = process.env.DEBUG;\n }\n\n return r;\n}\n\n/**\n * Enable namespaces listed in `localStorage.debug` initially.\n */\n\nexports.enable(load());\n\n/**\n * Localstorage attempts to return the localstorage.\n *\n * This is necessary because safari throws\n * when a user disables cookies/localstorage\n * and you attempt to access it.\n *\n * @return {LocalStorage}\n * @api private\n */\n\nfunction localstorage() {\n try {\n return window.localStorage;\n } catch (e) {}\n}\n","/*!\n * encodeurl\n * Copyright(c) 2016 Douglas Christopher Wilson\n * MIT Licensed\n */\n\n'use strict'\n\n/**\n * Module exports.\n * @public\n */\n\nmodule.exports = encodeUrl\n\n/**\n * RegExp to match non-URL code points, *after* encoding (i.e. not including \"%\")\n * and including invalid escape sequences.\n * @private\n */\n\nvar ENCODE_CHARS_REGEXP = /(?:[^\\x21\\x23-\\x3B\\x3D\\x3F-\\x5F\\x61-\\x7A\\x7C\\x7E]|%(?:[^0-9A-Fa-f]|[0-9A-Fa-f][^0-9A-Fa-f]|$))+/g\n\n/**\n * RegExp to match unmatched surrogate pair.\n * @private\n */\n\nvar UNMATCHED_SURROGATE_PAIR_REGEXP = /(^|[^\\uD800-\\uDBFF])[\\uDC00-\\uDFFF]|[\\uD800-\\uDBFF]([^\\uDC00-\\uDFFF]|$)/g\n\n/**\n * String to replace unmatched surrogate pair with.\n * @private\n */\n\nvar UNMATCHED_SURROGATE_PAIR_REPLACE = '$1\\uFFFD$2'\n\n/**\n * Encode a URL to a percent-encoded form, excluding already-encoded sequences.\n *\n * This function will take an already-encoded URL and encode all the non-URL\n * code points. This function will not encode the \"%\" character unless it is\n * not part of a valid sequence (`%20` will be left as-is, but `%foo` will\n * be encoded as `%25foo`).\n *\n * This encode is meant to be \"safe\" and does not throw errors. It will try as\n * hard as it can to properly encode the given URL, including replacing any raw,\n * unpaired surrogate pairs with the Unicode replacement character prior to\n * encoding.\n *\n * @param {string} url\n * @return {string}\n * @public\n */\n\nfunction encodeUrl (url) {\n return String(url)\n .replace(UNMATCHED_SURROGATE_PAIR_REGEXP, UNMATCHED_SURROGATE_PAIR_REPLACE)\n .replace(ENCODE_CHARS_REGEXP, encodeURI)\n}\n","/*!\n * escape-html\n * Copyright(c) 2012-2013 TJ Holowaychuk\n * Copyright(c) 2015 Andreas Lubbe\n * Copyright(c) 2015 Tiancheng \"Timothy\" Gu\n * MIT Licensed\n */\n\n'use strict';\n\n/**\n * Module variables.\n * @private\n */\n\nvar matchHtmlRegExp = /[\"'&<>]/;\n\n/**\n * Module exports.\n * @public\n */\n\nmodule.exports = escapeHtml;\n\n/**\n * Escape special characters in the given string of html.\n *\n * @param {string} string The string to escape for inserting into HTML\n * @return {string}\n * @public\n */\n\nfunction escapeHtml(string) {\n var str = '' + string;\n var match = matchHtmlRegExp.exec(str);\n\n if (!match) {\n return str;\n }\n\n var escape;\n var html = '';\n var index = 0;\n var lastIndex = 0;\n\n for (index = match.index; index < str.length; index++) {\n switch (str.charCodeAt(index)) {\n case 34: // \"\n escape = '"';\n break;\n case 38: // &\n escape = '&';\n break;\n case 39: // '\n escape = ''';\n break;\n case 60: // <\n escape = '<';\n break;\n case 62: // >\n escape = '>';\n break;\n default:\n continue;\n }\n\n if (lastIndex !== index) {\n html += str.substring(lastIndex, index);\n }\n\n lastIndex = index + 1;\n html += escape;\n }\n\n return lastIndex !== index\n ? html + str.substring(lastIndex, index)\n : html;\n}\n","/*!\n * parseurl\n * Copyright(c) 2014 Jonathan Ong\n * Copyright(c) 2014-2017 Douglas Christopher Wilson\n * MIT Licensed\n */\n\n'use strict'\n\n/**\n * Module dependencies.\n * @private\n */\n\nvar url = require('url')\nvar parse = url.parse\nvar Url = url.Url\n\n/**\n * Module exports.\n * @public\n */\n\nmodule.exports = parseurl\nmodule.exports.original = originalurl\n\n/**\n * Parse the `req` url with memoization.\n *\n * @param {ServerRequest} req\n * @return {Object}\n * @public\n */\n\nfunction parseurl (req) {\n var url = req.url\n\n if (url === undefined) {\n // URL is undefined\n return undefined\n }\n\n var parsed = req._parsedUrl\n\n if (fresh(url, parsed)) {\n // Return cached URL parse\n return parsed\n }\n\n // Parse the URL\n parsed = fastparse(url)\n parsed._raw = url\n\n return (req._parsedUrl = parsed)\n};\n\n/**\n * Parse the `req` original url with fallback and memoization.\n *\n * @param {ServerRequest} req\n * @return {Object}\n * @public\n */\n\nfunction originalurl (req) {\n var url = req.originalUrl\n\n if (typeof url !== 'string') {\n // Fallback\n return parseurl(req)\n }\n\n var parsed = req._parsedOriginalUrl\n\n if (fresh(url, parsed)) {\n // Return cached URL parse\n return parsed\n }\n\n // Parse the URL\n parsed = fastparse(url)\n parsed._raw = url\n\n return (req._parsedOriginalUrl = parsed)\n};\n\n/**\n * Parse the `str` url with fast-path short-cut.\n *\n * @param {string} str\n * @return {Object}\n * @private\n */\n\nfunction fastparse (str) {\n if (typeof str !== 'string' || str.charCodeAt(0) !== 0x2f /* / */) {\n return parse(str)\n }\n\n var pathname = str\n var query = null\n var search = null\n\n // This takes the regexp from https://github.com/joyent/node/pull/7878\n // Which is /^(\\/[^?#\\s]*)(\\?[^#\\s]*)?$/\n // And unrolls it into a for loop\n for (var i = 1; i < str.length; i++) {\n switch (str.charCodeAt(i)) {\n case 0x3f: /* ? */\n if (search === null) {\n pathname = str.substring(0, i)\n query = str.substring(i + 1)\n search = str.substring(i)\n }\n break\n case 0x09: /* \\t */\n case 0x0a: /* \\n */\n case 0x0c: /* \\f */\n case 0x0d: /* \\r */\n case 0x20: /* */\n case 0x23: /* # */\n case 0xa0:\n case 0xfeff:\n return parse(str)\n }\n }\n\n var url = Url !== undefined\n ? new Url()\n : {}\n\n url.path = str\n url.href = str\n url.pathname = pathname\n\n if (search !== null) {\n url.query = query\n url.search = search\n }\n\n return url\n}\n\n/**\n * Determine if parsed is still fresh for url.\n *\n * @param {string} url\n * @param {object} parsedUrl\n * @return {boolean}\n * @private\n */\n\nfunction fresh (url, parsedUrl) {\n return typeof parsedUrl === 'object' &&\n parsedUrl !== null &&\n (Url === undefined || parsedUrl instanceof Url) &&\n parsedUrl._raw === url\n}\n","/*!\n * finalhandler\n * Copyright(c) 2014-2022 Douglas Christopher Wilson\n * MIT Licensed\n */\n\n'use strict'\n\n/**\n * Module dependencies.\n * @private\n */\n\nvar debug = require('debug')('finalhandler')\nvar encodeUrl = require('encodeurl')\nvar escapeHtml = require('escape-html')\nvar onFinished = require('on-finished')\nvar parseUrl = require('parseurl')\nvar statuses = require('statuses')\nvar unpipe = require('unpipe')\n\n/**\n * Module variables.\n * @private\n */\n\nvar DOUBLE_SPACE_REGEXP = /\\x20{2}/g\nvar NEWLINE_REGEXP = /\\n/g\n\n/* istanbul ignore next */\nvar defer = typeof setImmediate === 'function'\n ? setImmediate\n : function (fn) { process.nextTick(fn.bind.apply(fn, arguments)) }\nvar isFinished = onFinished.isFinished\n\n/**\n * Create a minimal HTML document.\n *\n * @param {string} message\n * @private\n */\n\nfunction createHtmlDocument (message) {\n var body = escapeHtml(message)\n .replace(NEWLINE_REGEXP, '
')\n .replace(DOUBLE_SPACE_REGEXP, '  ')\n\n return '\\n' +\n '\\n' +\n '\\n' +\n '\\n' +\n 'Error\\n' +\n '\\n' +\n '\\n' +\n '
' + body + '
\\n' +\n '\\n' +\n '\\n'\n}\n\n/**\n * Module exports.\n * @public\n */\n\nmodule.exports = finalhandler\n\n/**\n * Create a function to handle the final response.\n *\n * @param {Request} req\n * @param {Response} res\n * @param {Object} [options]\n * @return {Function}\n * @public\n */\n\nfunction finalhandler (req, res, options) {\n var opts = options || {}\n\n // get environment\n var env = opts.env || process.env.NODE_ENV || 'development'\n\n // get error callback\n var onerror = opts.onerror\n\n return function (err) {\n var headers\n var msg\n var status\n\n // ignore 404 on in-flight response\n if (!err && headersSent(res)) {\n debug('cannot 404 after headers sent')\n return\n }\n\n // unhandled error\n if (err) {\n // respect status code from error\n status = getErrorStatusCode(err)\n\n if (status === undefined) {\n // fallback to status code on response\n status = getResponseStatusCode(res)\n } else {\n // respect headers from error\n headers = getErrorHeaders(err)\n }\n\n // get error message\n msg = getErrorMessage(err, status, env)\n } else {\n // not found\n status = 404\n msg = 'Cannot ' + req.method + ' ' + encodeUrl(getResourceName(req))\n }\n\n debug('default %s', status)\n\n // schedule onerror callback\n if (err && onerror) {\n defer(onerror, err, req, res)\n }\n\n // cannot actually respond\n if (headersSent(res)) {\n debug('cannot %d after headers sent', status)\n if (req.socket) {\n req.socket.destroy()\n }\n return\n }\n\n // send response\n send(req, res, status, headers, msg)\n }\n}\n\n/**\n * Get headers from Error object.\n *\n * @param {Error} err\n * @return {object}\n * @private\n */\n\nfunction getErrorHeaders (err) {\n if (!err.headers || typeof err.headers !== 'object') {\n return undefined\n }\n\n var headers = Object.create(null)\n var keys = Object.keys(err.headers)\n\n for (var i = 0; i < keys.length; i++) {\n var key = keys[i]\n headers[key] = err.headers[key]\n }\n\n return headers\n}\n\n/**\n * Get message from Error object, fallback to status message.\n *\n * @param {Error} err\n * @param {number} status\n * @param {string} env\n * @return {string}\n * @private\n */\n\nfunction getErrorMessage (err, status, env) {\n var msg\n\n if (env !== 'production') {\n // use err.stack, which typically includes err.message\n msg = err.stack\n\n // fallback to err.toString() when possible\n if (!msg && typeof err.toString === 'function') {\n msg = err.toString()\n }\n }\n\n return msg || statuses.message[status]\n}\n\n/**\n * Get status code from Error object.\n *\n * @param {Error} err\n * @return {number}\n * @private\n */\n\nfunction getErrorStatusCode (err) {\n // check err.status\n if (typeof err.status === 'number' && err.status >= 400 && err.status < 600) {\n return err.status\n }\n\n // check err.statusCode\n if (typeof err.statusCode === 'number' && err.statusCode >= 400 && err.statusCode < 600) {\n return err.statusCode\n }\n\n return undefined\n}\n\n/**\n * Get resource name for the request.\n *\n * This is typically just the original pathname of the request\n * but will fallback to \"resource\" is that cannot be determined.\n *\n * @param {IncomingMessage} req\n * @return {string}\n * @private\n */\n\nfunction getResourceName (req) {\n try {\n return parseUrl.original(req).pathname\n } catch (e) {\n return 'resource'\n }\n}\n\n/**\n * Get status code from response.\n *\n * @param {OutgoingMessage} res\n * @return {number}\n * @private\n */\n\nfunction getResponseStatusCode (res) {\n var status = res.statusCode\n\n // default status code to 500 if outside valid range\n if (typeof status !== 'number' || status < 400 || status > 599) {\n status = 500\n }\n\n return status\n}\n\n/**\n * Determine if the response headers have been sent.\n *\n * @param {object} res\n * @returns {boolean}\n * @private\n */\n\nfunction headersSent (res) {\n return typeof res.headersSent !== 'boolean'\n ? Boolean(res._header)\n : res.headersSent\n}\n\n/**\n * Send response.\n *\n * @param {IncomingMessage} req\n * @param {OutgoingMessage} res\n * @param {number} status\n * @param {object} headers\n * @param {string} message\n * @private\n */\n\nfunction send (req, res, status, headers, message) {\n function write () {\n // response body\n var body = createHtmlDocument(message)\n\n // response status\n res.statusCode = status\n\n if (req.httpVersionMajor < 2) {\n res.statusMessage = statuses.message[status]\n }\n\n // remove any content headers\n res.removeHeader('Content-Encoding')\n res.removeHeader('Content-Language')\n res.removeHeader('Content-Range')\n\n // response headers\n setHeaders(res, headers)\n\n // security headers\n res.setHeader('Content-Security-Policy', \"default-src 'none'\")\n res.setHeader('X-Content-Type-Options', 'nosniff')\n\n // standard headers\n res.setHeader('Content-Type', 'text/html; charset=utf-8')\n res.setHeader('Content-Length', Buffer.byteLength(body, 'utf8'))\n\n if (req.method === 'HEAD') {\n res.end()\n return\n }\n\n res.end(body, 'utf8')\n }\n\n if (isFinished(req)) {\n write()\n return\n }\n\n // unpipe everything from the request\n unpipe(req)\n\n // flush the request\n onFinished(req, write)\n req.resume()\n}\n\n/**\n * Set response headers from an object.\n *\n * @param {OutgoingMessage} res\n * @param {object} headers\n * @private\n */\n\nfunction setHeaders (res, headers) {\n if (!headers) {\n return\n }\n\n var keys = Object.keys(headers)\n for (var i = 0; i < keys.length; i++) {\n var key = keys[i]\n res.setHeader(key, headers[key])\n }\n}\n","/**\n * Helpers.\n */\n\nvar s = 1000;\nvar m = s * 60;\nvar h = m * 60;\nvar d = h * 24;\nvar y = d * 365.25;\n\n/**\n * Parse or format the given `val`.\n *\n * Options:\n *\n * - `long` verbose formatting [false]\n *\n * @param {String|Number} val\n * @param {Object} [options]\n * @throws {Error} throw an error if val is not a non-empty string or a number\n * @return {String|Number}\n * @api public\n */\n\nmodule.exports = function(val, options) {\n options = options || {};\n var type = typeof val;\n if (type === 'string' && val.length > 0) {\n return parse(val);\n } else if (type === 'number' && isNaN(val) === false) {\n return options.long ? fmtLong(val) : fmtShort(val);\n }\n throw new Error(\n 'val is not a non-empty string or a valid number. val=' +\n JSON.stringify(val)\n );\n};\n\n/**\n * Parse the given `str` and return milliseconds.\n *\n * @param {String} str\n * @return {Number}\n * @api private\n */\n\nfunction parse(str) {\n str = String(str);\n if (str.length > 100) {\n return;\n }\n var match = /^((?:\\d+)?\\.?\\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|years?|yrs?|y)?$/i.exec(\n str\n );\n if (!match) {\n return;\n }\n var n = parseFloat(match[1]);\n var type = (match[2] || 'ms').toLowerCase();\n switch (type) {\n case 'years':\n case 'year':\n case 'yrs':\n case 'yr':\n case 'y':\n return n * y;\n case 'days':\n case 'day':\n case 'd':\n return n * d;\n case 'hours':\n case 'hour':\n case 'hrs':\n case 'hr':\n case 'h':\n return n * h;\n case 'minutes':\n case 'minute':\n case 'mins':\n case 'min':\n case 'm':\n return n * m;\n case 'seconds':\n case 'second':\n case 'secs':\n case 'sec':\n case 's':\n return n * s;\n case 'milliseconds':\n case 'millisecond':\n case 'msecs':\n case 'msec':\n case 'ms':\n return n;\n default:\n return undefined;\n }\n}\n\n/**\n * Short format for `ms`.\n *\n * @param {Number} ms\n * @return {String}\n * @api private\n */\n\nfunction fmtShort(ms) {\n if (ms >= d) {\n return Math.round(ms / d) + 'd';\n }\n if (ms >= h) {\n return Math.round(ms / h) + 'h';\n }\n if (ms >= m) {\n return Math.round(ms / m) + 'm';\n }\n if (ms >= s) {\n return Math.round(ms / s) + 's';\n }\n return ms + 'ms';\n}\n\n/**\n * Long format for `ms`.\n *\n * @param {Number} ms\n * @return {String}\n * @api private\n */\n\nfunction fmtLong(ms) {\n return plural(ms, d, 'day') ||\n plural(ms, h, 'hour') ||\n plural(ms, m, 'minute') ||\n plural(ms, s, 'second') ||\n ms + ' ms';\n}\n\n/**\n * Pluralization helper.\n */\n\nfunction plural(ms, n, name) {\n if (ms < n) {\n return;\n }\n if (ms < n * 1.5) {\n return Math.floor(ms / n) + ' ' + name;\n }\n return Math.ceil(ms / n) + ' ' + name + 's';\n}\n","\n/**\n * This is the common logic for both the Node.js and web browser\n * implementations of `debug()`.\n *\n * Expose `debug()` as the module.\n */\n\nexports = module.exports = createDebug.debug = createDebug['default'] = createDebug;\nexports.coerce = coerce;\nexports.disable = disable;\nexports.enable = enable;\nexports.enabled = enabled;\nexports.humanize = require('ms');\n\n/**\n * The currently active debug mode names, and names to skip.\n */\n\nexports.names = [];\nexports.skips = [];\n\n/**\n * Map of special \"%n\" handling functions, for the debug \"format\" argument.\n *\n * Valid key names are a single, lower or upper-case letter, i.e. \"n\" and \"N\".\n */\n\nexports.formatters = {};\n\n/**\n * Previous log timestamp.\n */\n\nvar prevTime;\n\n/**\n * Select a color.\n * @param {String} namespace\n * @return {Number}\n * @api private\n */\n\nfunction selectColor(namespace) {\n var hash = 0, i;\n\n for (i in namespace) {\n hash = ((hash << 5) - hash) + namespace.charCodeAt(i);\n hash |= 0; // Convert to 32bit integer\n }\n\n return exports.colors[Math.abs(hash) % exports.colors.length];\n}\n\n/**\n * Create a debugger with the given `namespace`.\n *\n * @param {String} namespace\n * @return {Function}\n * @api public\n */\n\nfunction createDebug(namespace) {\n\n function debug() {\n // disabled?\n if (!debug.enabled) return;\n\n var self = debug;\n\n // set `diff` timestamp\n var curr = +new Date();\n var ms = curr - (prevTime || curr);\n self.diff = ms;\n self.prev = prevTime;\n self.curr = curr;\n prevTime = curr;\n\n // turn the `arguments` into a proper Array\n var args = new Array(arguments.length);\n for (var i = 0; i < args.length; i++) {\n args[i] = arguments[i];\n }\n\n args[0] = exports.coerce(args[0]);\n\n if ('string' !== typeof args[0]) {\n // anything else let's inspect with %O\n args.unshift('%O');\n }\n\n // apply any `formatters` transformations\n var index = 0;\n args[0] = args[0].replace(/%([a-zA-Z%])/g, function(match, format) {\n // if we encounter an escaped % then don't increase the array index\n if (match === '%%') return match;\n index++;\n var formatter = exports.formatters[format];\n if ('function' === typeof formatter) {\n var val = args[index];\n match = formatter.call(self, val);\n\n // now we need to remove `args[index]` since it's inlined in the `format`\n args.splice(index, 1);\n index--;\n }\n return match;\n });\n\n // apply env-specific formatting (colors, etc.)\n exports.formatArgs.call(self, args);\n\n var logFn = debug.log || exports.log || console.log.bind(console);\n logFn.apply(self, args);\n }\n\n debug.namespace = namespace;\n debug.enabled = exports.enabled(namespace);\n debug.useColors = exports.useColors();\n debug.color = selectColor(namespace);\n\n // env-specific initialization logic for debug instances\n if ('function' === typeof exports.init) {\n exports.init(debug);\n }\n\n return debug;\n}\n\n/**\n * Enables a debug mode by namespaces. This can include modes\n * separated by a colon and wildcards.\n *\n * @param {String} namespaces\n * @api public\n */\n\nfunction enable(namespaces) {\n exports.save(namespaces);\n\n exports.names = [];\n exports.skips = [];\n\n var split = (typeof namespaces === 'string' ? namespaces : '').split(/[\\s,]+/);\n var len = split.length;\n\n for (var i = 0; i < len; i++) {\n if (!split[i]) continue; // ignore empty strings\n namespaces = split[i].replace(/\\*/g, '.*?');\n if (namespaces[0] === '-') {\n exports.skips.push(new RegExp('^' + namespaces.substr(1) + '$'));\n } else {\n exports.names.push(new RegExp('^' + namespaces + '$'));\n }\n }\n}\n\n/**\n * Disable debug output.\n *\n * @api public\n */\n\nfunction disable() {\n exports.enable('');\n}\n\n/**\n * Returns true if the given mode name is enabled, false otherwise.\n *\n * @param {String} name\n * @return {Boolean}\n * @api public\n */\n\nfunction enabled(name) {\n var i, len;\n for (i = 0, len = exports.skips.length; i < len; i++) {\n if (exports.skips[i].test(name)) {\n return false;\n }\n }\n for (i = 0, len = exports.names.length; i < len; i++) {\n if (exports.names[i].test(name)) {\n return true;\n }\n }\n return false;\n}\n\n/**\n * Coerce `val`.\n *\n * @param {Mixed} val\n * @return {Mixed}\n * @api private\n */\n\nfunction coerce(val) {\n if (val instanceof Error) return val.stack || val.message;\n return val;\n}\n","/**\n * This is the web browser implementation of `debug()`.\n *\n * Expose `debug()` as the module.\n */\n\nexports = module.exports = require('./debug');\nexports.log = log;\nexports.formatArgs = formatArgs;\nexports.save = save;\nexports.load = load;\nexports.useColors = useColors;\nexports.storage = 'undefined' != typeof chrome\n && 'undefined' != typeof chrome.storage\n ? chrome.storage.local\n : localstorage();\n\n/**\n * Colors.\n */\n\nexports.colors = [\n 'lightseagreen',\n 'forestgreen',\n 'goldenrod',\n 'dodgerblue',\n 'darkorchid',\n 'crimson'\n];\n\n/**\n * Currently only WebKit-based Web Inspectors, Firefox >= v31,\n * and the Firebug extension (any Firefox version) are known\n * to support \"%c\" CSS customizations.\n *\n * TODO: add a `localStorage` variable to explicitly enable/disable colors\n */\n\nfunction useColors() {\n // NB: In an Electron preload script, document will be defined but not fully\n // initialized. Since we know we're in Chrome, we'll just detect this case\n // explicitly\n if (typeof window !== 'undefined' && window.process && window.process.type === 'renderer') {\n return true;\n }\n\n // is webkit? http://stackoverflow.com/a/16459606/376773\n // document is undefined in react-native: https://github.com/facebook/react-native/pull/1632\n return (typeof document !== 'undefined' && document.documentElement && document.documentElement.style && document.documentElement.style.WebkitAppearance) ||\n // is firebug? http://stackoverflow.com/a/398120/376773\n (typeof window !== 'undefined' && window.console && (window.console.firebug || (window.console.exception && window.console.table))) ||\n // is firefox >= v31?\n // https://developer.mozilla.org/en-US/docs/Tools/Web_Console#Styling_messages\n (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/firefox\\/(\\d+)/) && parseInt(RegExp.$1, 10) >= 31) ||\n // double check webkit in userAgent just in case we are in a worker\n (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/applewebkit\\/(\\d+)/));\n}\n\n/**\n * Map %j to `JSON.stringify()`, since no Web Inspectors do that by default.\n */\n\nexports.formatters.j = function(v) {\n try {\n return JSON.stringify(v);\n } catch (err) {\n return '[UnexpectedJSONParseError]: ' + err.message;\n }\n};\n\n\n/**\n * Colorize log arguments if enabled.\n *\n * @api public\n */\n\nfunction formatArgs(args) {\n var useColors = this.useColors;\n\n args[0] = (useColors ? '%c' : '')\n + this.namespace\n + (useColors ? ' %c' : ' ')\n + args[0]\n + (useColors ? '%c ' : ' ')\n + '+' + exports.humanize(this.diff);\n\n if (!useColors) return;\n\n var c = 'color: ' + this.color;\n args.splice(1, 0, c, 'color: inherit')\n\n // the final \"%c\" is somewhat tricky, because there could be other\n // arguments passed either before or after the %c, so we need to\n // figure out the correct index to insert the CSS into\n var index = 0;\n var lastC = 0;\n args[0].replace(/%[a-zA-Z%]/g, function(match) {\n if ('%%' === match) return;\n index++;\n if ('%c' === match) {\n // we only are interested in the *last* %c\n // (the user may have provided their own)\n lastC = index;\n }\n });\n\n args.splice(lastC, 0, c);\n}\n\n/**\n * Invokes `console.log()` when available.\n * No-op when `console.log` is not a \"function\".\n *\n * @api public\n */\n\nfunction log() {\n // this hackery is required for IE8/9, where\n // the `console.log` function doesn't have 'apply'\n return 'object' === typeof console\n && console.log\n && Function.prototype.apply.call(console.log, console, arguments);\n}\n\n/**\n * Save `namespaces`.\n *\n * @param {String} namespaces\n * @api private\n */\n\nfunction save(namespaces) {\n try {\n if (null == namespaces) {\n exports.storage.removeItem('debug');\n } else {\n exports.storage.debug = namespaces;\n }\n } catch(e) {}\n}\n\n/**\n * Load `namespaces`.\n *\n * @return {String} returns the previously persisted debug modes\n * @api private\n */\n\nfunction load() {\n var r;\n try {\n r = exports.storage.debug;\n } catch(e) {}\n\n // If debug isn't set in LS, and we're in Electron, try to load $DEBUG\n if (!r && typeof process !== 'undefined' && 'env' in process) {\n r = process.env.DEBUG;\n }\n\n return r;\n}\n\n/**\n * Enable namespaces listed in `localStorage.debug` initially.\n */\n\nexports.enable(load());\n\n/**\n * Localstorage attempts to return the localstorage.\n *\n * This is necessary because safari throws\n * when a user disables cookies/localstorage\n * and you attempt to access it.\n *\n * @return {LocalStorage}\n * @api private\n */\n\nfunction localstorage() {\n try {\n return window.localStorage;\n } catch (e) {}\n}\n","'use strict'\n\n/**\n * Expose `arrayFlatten`.\n */\nmodule.exports = arrayFlatten\n\n/**\n * Recursive flatten function with depth.\n *\n * @param {Array} array\n * @param {Array} result\n * @param {Number} depth\n * @return {Array}\n */\nfunction flattenWithDepth (array, result, depth) {\n for (var i = 0; i < array.length; i++) {\n var value = array[i]\n\n if (depth > 0 && Array.isArray(value)) {\n flattenWithDepth(value, result, depth - 1)\n } else {\n result.push(value)\n }\n }\n\n return result\n}\n\n/**\n * Recursive flatten function. Omitting depth is slightly faster.\n *\n * @param {Array} array\n * @param {Array} result\n * @return {Array}\n */\nfunction flattenForever (array, result) {\n for (var i = 0; i < array.length; i++) {\n var value = array[i]\n\n if (Array.isArray(value)) {\n flattenForever(value, result)\n } else {\n result.push(value)\n }\n }\n\n return result\n}\n\n/**\n * Flatten an array, with the ability to define a depth.\n *\n * @param {Array} array\n * @param {Number} depth\n * @return {Array}\n */\nfunction arrayFlatten (array, depth) {\n if (depth == null) {\n return flattenForever(array, [])\n }\n\n return flattenWithDepth(array, [], depth)\n}\n","/**\n * Expose `pathToRegexp`.\n */\n\nmodule.exports = pathToRegexp;\n\n/**\n * Match matching groups in a regular expression.\n */\nvar MATCHING_GROUP_REGEXP = /\\\\.|\\((?:\\?<(.*?)>)?(?!\\?)/g;\n\n/**\n * Normalize the given path string,\n * returning a regular expression.\n *\n * An empty array should be passed,\n * which will contain the placeholder\n * key names. For example \"/user/:id\" will\n * then contain [\"id\"].\n *\n * @param {String|RegExp|Array} path\n * @param {Array} keys\n * @param {Object} options\n * @return {RegExp}\n * @api private\n */\n\nfunction pathToRegexp(path, keys, options) {\n options = options || {};\n keys = keys || [];\n var strict = options.strict;\n var end = options.end !== false;\n var flags = options.sensitive ? '' : 'i';\n var lookahead = options.lookahead !== false;\n var extraOffset = 0;\n var keysOffset = keys.length;\n var i = 0;\n var name = 0;\n var pos = 0;\n var backtrack = '';\n var m;\n\n if (path instanceof RegExp) {\n while (m = MATCHING_GROUP_REGEXP.exec(path.source)) {\n if (m[0][0] === '\\\\') continue;\n\n keys.push({\n name: m[1] || name++,\n optional: false,\n offset: m.index\n });\n }\n\n return path;\n }\n\n if (Array.isArray(path)) {\n // Map array parts into regexps and return their source. We also pass\n // the same keys and options instance into every generation to get\n // consistent matching groups before we join the sources together.\n path = path.map(function (value) {\n return pathToRegexp(value, keys, options).source;\n });\n\n return new RegExp(path.join('|'), flags);\n }\n\n if (typeof path !== 'string') {\n throw new TypeError('path must be a string, array of strings, or regular expression');\n }\n\n path = path.replace(\n /\\\\.|(\\/)?(\\.)?:(\\w+)(\\(.*?\\))?(\\*)?(\\?)?|[.*]|\\/\\(/g,\n function (match, slash, format, key, capture, star, optional, offset) {\n if (match[0] === '\\\\') {\n backtrack += match;\n pos += 2;\n return match;\n }\n\n if (match === '.') {\n backtrack += '\\\\.';\n extraOffset += 1;\n pos += 1;\n return '\\\\.';\n }\n\n if (slash || format) {\n backtrack = '';\n } else {\n backtrack += path.slice(pos, offset);\n }\n\n pos = offset + match.length;\n\n if (match === '*') {\n extraOffset += 3;\n return '(.*)';\n }\n\n if (match === '/(') {\n backtrack += '/';\n extraOffset += 2;\n return '/(?:';\n }\n\n slash = slash || '';\n format = format ? '\\\\.' : '';\n optional = optional || '';\n capture = capture ?\n capture.replace(/\\\\.|\\*/, function (m) { return m === '*' ? '(.*)' : m; }) :\n (backtrack ? '((?:(?!/|' + backtrack + ').)+?)' : '([^/' + format + ']+?)');\n\n keys.push({\n name: key,\n optional: !!optional,\n offset: offset + extraOffset\n });\n\n var result = '(?:'\n + format + slash + capture\n + (star ? '((?:[/' + format + '].+?)?)' : '')\n + ')'\n + optional;\n\n extraOffset += result.length - match.length;\n\n return result;\n });\n\n // This is a workaround for handling unnamed matching groups.\n while (m = MATCHING_GROUP_REGEXP.exec(path)) {\n if (m[0][0] === '\\\\') continue;\n\n if (keysOffset + i === keys.length || keys[keysOffset + i].offset > m.index) {\n keys.splice(keysOffset + i, 0, {\n name: name++, // Unnamed matching groups must be consistently linear.\n optional: false,\n offset: m.index\n });\n }\n\n i++;\n }\n\n path += strict ? '' : path[path.length - 1] === '/' ? '?' : '/?';\n\n // If the path is non-ending, match until the end or a slash.\n if (end) {\n path += '$';\n } else if (path[path.length - 1] !== '/') {\n path += lookahead ? '(?=/|$)' : '(?:/|$)';\n }\n\n return new RegExp('^' + path, flags);\n};\n","/*!\n * express\n * Copyright(c) 2009-2013 TJ Holowaychuk\n * Copyright(c) 2013 Roman Shtylman\n * Copyright(c) 2014-2015 Douglas Christopher Wilson\n * MIT Licensed\n */\n\n'use strict';\n\n/**\n * Module dependencies.\n * @private\n */\n\nvar pathRegexp = require('path-to-regexp');\nvar debug = require('debug')('express:router:layer');\n\n/**\n * Module variables.\n * @private\n */\n\nvar hasOwnProperty = Object.prototype.hasOwnProperty;\n\n/**\n * Module exports.\n * @public\n */\n\nmodule.exports = Layer;\n\nfunction Layer(path, options, fn) {\n if (!(this instanceof Layer)) {\n return new Layer(path, options, fn);\n }\n\n debug('new %o', path)\n var opts = options || {};\n\n this.handle = fn;\n this.name = fn.name || '';\n this.params = undefined;\n this.path = undefined;\n this.regexp = pathRegexp(path, this.keys = [], opts);\n\n // set fast path flags\n this.regexp.fast_star = path === '*'\n this.regexp.fast_slash = path === '/' && opts.end === false\n}\n\n/**\n * Handle the error for the layer.\n *\n * @param {Error} error\n * @param {Request} req\n * @param {Response} res\n * @param {function} next\n * @api private\n */\n\nLayer.prototype.handle_error = function handle_error(error, req, res, next) {\n var fn = this.handle;\n\n if (fn.length !== 4) {\n // not a standard error handler\n return next(error);\n }\n\n try {\n fn(error, req, res, next);\n } catch (err) {\n next(err);\n }\n};\n\n/**\n * Handle the request for the layer.\n *\n * @param {Request} req\n * @param {Response} res\n * @param {function} next\n * @api private\n */\n\nLayer.prototype.handle_request = function handle(req, res, next) {\n var fn = this.handle;\n\n if (fn.length > 3) {\n // not a standard request handler\n return next();\n }\n\n try {\n fn(req, res, next);\n } catch (err) {\n next(err);\n }\n};\n\n/**\n * Check if this route matches `path`, if so\n * populate `.params`.\n *\n * @param {String} path\n * @return {Boolean}\n * @api private\n */\n\nLayer.prototype.match = function match(path) {\n var match\n\n if (path != null) {\n // fast path non-ending match for / (any path matches)\n if (this.regexp.fast_slash) {\n this.params = {}\n this.path = ''\n return true\n }\n\n // fast path for * (everything matched in a param)\n if (this.regexp.fast_star) {\n this.params = {'0': decode_param(path)}\n this.path = path\n return true\n }\n\n // match the path\n match = this.regexp.exec(path)\n }\n\n if (!match) {\n this.params = undefined;\n this.path = undefined;\n return false;\n }\n\n // store values\n this.params = {};\n this.path = match[0]\n\n var keys = this.keys;\n var params = this.params;\n\n for (var i = 1; i < match.length; i++) {\n var key = keys[i - 1];\n var prop = key.name;\n var val = decode_param(match[i])\n\n if (val !== undefined || !(hasOwnProperty.call(params, prop))) {\n params[prop] = val;\n }\n }\n\n return true;\n};\n\n/**\n * Decode param value.\n *\n * @param {string} val\n * @return {string}\n * @private\n */\n\nfunction decode_param(val) {\n if (typeof val !== 'string' || val.length === 0) {\n return val;\n }\n\n try {\n return decodeURIComponent(val);\n } catch (err) {\n if (err instanceof URIError) {\n err.message = 'Failed to decode param \\'' + val + '\\'';\n err.status = err.statusCode = 400;\n }\n\n throw err;\n }\n}\n","/*!\n * methods\n * Copyright(c) 2013-2014 TJ Holowaychuk\n * Copyright(c) 2015-2016 Douglas Christopher Wilson\n * MIT Licensed\n */\n\n'use strict';\n\n/**\n * Module dependencies.\n * @private\n */\n\nvar http = require('http');\n\n/**\n * Module exports.\n * @public\n */\n\nmodule.exports = getCurrentNodeMethods() || getBasicNodeMethods();\n\n/**\n * Get the current Node.js methods.\n * @private\n */\n\nfunction getCurrentNodeMethods() {\n return http.METHODS && http.METHODS.map(function lowerCaseMethod(method) {\n return method.toLowerCase();\n });\n}\n\n/**\n * Get the \"basic\" Node.js methods, a snapshot from Node.js 0.10.\n * @private\n */\n\nfunction getBasicNodeMethods() {\n return [\n 'get',\n 'post',\n 'put',\n 'head',\n 'delete',\n 'options',\n 'trace',\n 'copy',\n 'lock',\n 'mkcol',\n 'move',\n 'purge',\n 'propfind',\n 'proppatch',\n 'unlock',\n 'report',\n 'mkactivity',\n 'checkout',\n 'merge',\n 'm-search',\n 'notify',\n 'subscribe',\n 'unsubscribe',\n 'patch',\n 'search',\n 'connect'\n ];\n}\n","/*!\n * express\n * Copyright(c) 2009-2013 TJ Holowaychuk\n * Copyright(c) 2013 Roman Shtylman\n * Copyright(c) 2014-2015 Douglas Christopher Wilson\n * MIT Licensed\n */\n\n'use strict';\n\n/**\n * Module dependencies.\n * @private\n */\n\nvar debug = require('debug')('express:router:route');\nvar flatten = require('array-flatten');\nvar Layer = require('./layer');\nvar methods = require('methods');\n\n/**\n * Module variables.\n * @private\n */\n\nvar slice = Array.prototype.slice;\nvar toString = Object.prototype.toString;\n\n/**\n * Module exports.\n * @public\n */\n\nmodule.exports = Route;\n\n/**\n * Initialize `Route` with the given `path`,\n *\n * @param {String} path\n * @public\n */\n\nfunction Route(path) {\n this.path = path;\n this.stack = [];\n\n debug('new %o', path)\n\n // route handlers for various http methods\n this.methods = {};\n}\n\n/**\n * Determine if the route handles a given method.\n * @private\n */\n\nRoute.prototype._handles_method = function _handles_method(method) {\n if (this.methods._all) {\n return true;\n }\n\n // normalize name\n var name = typeof method === 'string'\n ? method.toLowerCase()\n : method\n\n if (name === 'head' && !this.methods['head']) {\n name = 'get';\n }\n\n return Boolean(this.methods[name]);\n};\n\n/**\n * @return {Array} supported HTTP methods\n * @private\n */\n\nRoute.prototype._options = function _options() {\n var methods = Object.keys(this.methods);\n\n // append automatic head\n if (this.methods.get && !this.methods.head) {\n methods.push('head');\n }\n\n for (var i = 0; i < methods.length; i++) {\n // make upper case\n methods[i] = methods[i].toUpperCase();\n }\n\n return methods;\n};\n\n/**\n * dispatch req, res into this route\n * @private\n */\n\nRoute.prototype.dispatch = function dispatch(req, res, done) {\n var idx = 0;\n var stack = this.stack;\n var sync = 0\n\n if (stack.length === 0) {\n return done();\n }\n var method = typeof req.method === 'string'\n ? req.method.toLowerCase()\n : req.method\n\n if (method === 'head' && !this.methods['head']) {\n method = 'get';\n }\n\n req.route = this;\n\n next();\n\n function next(err) {\n // signal to exit route\n if (err && err === 'route') {\n return done();\n }\n\n // signal to exit router\n if (err && err === 'router') {\n return done(err)\n }\n\n // max sync stack\n if (++sync > 100) {\n return setImmediate(next, err)\n }\n\n var layer = stack[idx++]\n\n // end of layers\n if (!layer) {\n return done(err)\n }\n\n if (layer.method && layer.method !== method) {\n next(err)\n } else if (err) {\n layer.handle_error(err, req, res, next);\n } else {\n layer.handle_request(req, res, next);\n }\n\n sync = 0\n }\n};\n\n/**\n * Add a handler for all HTTP verbs to this route.\n *\n * Behaves just like middleware and can respond or call `next`\n * to continue processing.\n *\n * You can use multiple `.all` call to add multiple handlers.\n *\n * function check_something(req, res, next){\n * next();\n * };\n *\n * function validate_user(req, res, next){\n * next();\n * };\n *\n * route\n * .all(validate_user)\n * .all(check_something)\n * .get(function(req, res, next){\n * res.send('hello world');\n * });\n *\n * @param {function} handler\n * @return {Route} for chaining\n * @api public\n */\n\nRoute.prototype.all = function all() {\n var handles = flatten(slice.call(arguments));\n\n for (var i = 0; i < handles.length; i++) {\n var handle = handles[i];\n\n if (typeof handle !== 'function') {\n var type = toString.call(handle);\n var msg = 'Route.all() requires a callback function but got a ' + type\n throw new TypeError(msg);\n }\n\n var layer = Layer('/', {}, handle);\n layer.method = undefined;\n\n this.methods._all = true;\n this.stack.push(layer);\n }\n\n return this;\n};\n\nmethods.forEach(function(method){\n Route.prototype[method] = function(){\n var handles = flatten(slice.call(arguments));\n\n for (var i = 0; i < handles.length; i++) {\n var handle = handles[i];\n\n if (typeof handle !== 'function') {\n var type = toString.call(handle);\n var msg = 'Route.' + method + '() requires a callback function but got a ' + type\n throw new Error(msg);\n }\n\n debug('%s %o', method, this.path)\n\n var layer = Layer('/', {}, handle);\n layer.method = method;\n\n this.methods[method] = true;\n this.stack.push(layer);\n }\n\n return this;\n };\n});\n","/**\n * Merge object b with object a.\n *\n * var a = { foo: 'bar' }\n * , b = { bar: 'baz' };\n *\n * merge(a, b);\n * // => { foo: 'bar', bar: 'baz' }\n *\n * @param {Object} a\n * @param {Object} b\n * @return {Object}\n * @api public\n */\n\nexports = module.exports = function(a, b){\n if (a && b) {\n for (var key in b) {\n a[key] = b[key];\n }\n }\n return a;\n};\n","/*!\n * express\n * Copyright(c) 2009-2013 TJ Holowaychuk\n * Copyright(c) 2013 Roman Shtylman\n * Copyright(c) 2014-2015 Douglas Christopher Wilson\n * MIT Licensed\n */\n\n'use strict';\n\n/**\n * Module dependencies.\n * @private\n */\n\nvar Route = require('./route');\nvar Layer = require('./layer');\nvar methods = require('methods');\nvar mixin = require('utils-merge');\nvar debug = require('debug')('express:router');\nvar deprecate = require('depd')('express');\nvar flatten = require('array-flatten');\nvar parseUrl = require('parseurl');\nvar setPrototypeOf = require('setprototypeof')\n\n/**\n * Module variables.\n * @private\n */\n\nvar objectRegExp = /^\\[object (\\S+)\\]$/;\nvar slice = Array.prototype.slice;\nvar toString = Object.prototype.toString;\n\n/**\n * Initialize a new `Router` with the given `options`.\n *\n * @param {Object} [options]\n * @return {Router} which is a callable function\n * @public\n */\n\nvar proto = module.exports = function(options) {\n var opts = options || {};\n\n function router(req, res, next) {\n router.handle(req, res, next);\n }\n\n // mixin Router class functions\n setPrototypeOf(router, proto)\n\n router.params = {};\n router._params = [];\n router.caseSensitive = opts.caseSensitive;\n router.mergeParams = opts.mergeParams;\n router.strict = opts.strict;\n router.stack = [];\n\n return router;\n};\n\n/**\n * Map the given param placeholder `name`(s) to the given callback.\n *\n * Parameter mapping is used to provide pre-conditions to routes\n * which use normalized placeholders. For example a _:user_id_ parameter\n * could automatically load a user's information from the database without\n * any additional code,\n *\n * The callback uses the same signature as middleware, the only difference\n * being that the value of the placeholder is passed, in this case the _id_\n * of the user. Once the `next()` function is invoked, just like middleware\n * it will continue on to execute the route, or subsequent parameter functions.\n *\n * Just like in middleware, you must either respond to the request or call next\n * to avoid stalling the request.\n *\n * app.param('user_id', function(req, res, next, id){\n * User.find(id, function(err, user){\n * if (err) {\n * return next(err);\n * } else if (!user) {\n * return next(new Error('failed to load user'));\n * }\n * req.user = user;\n * next();\n * });\n * });\n *\n * @param {String} name\n * @param {Function} fn\n * @return {app} for chaining\n * @public\n */\n\nproto.param = function param(name, fn) {\n // param logic\n if (typeof name === 'function') {\n deprecate('router.param(fn): Refactor to use path params');\n this._params.push(name);\n return;\n }\n\n // apply param functions\n var params = this._params;\n var len = params.length;\n var ret;\n\n if (name[0] === ':') {\n deprecate('router.param(' + JSON.stringify(name) + ', fn): Use router.param(' + JSON.stringify(name.slice(1)) + ', fn) instead')\n name = name.slice(1)\n }\n\n for (var i = 0; i < len; ++i) {\n if (ret = params[i](name, fn)) {\n fn = ret;\n }\n }\n\n // ensure we end up with a\n // middleware function\n if ('function' !== typeof fn) {\n throw new Error('invalid param() call for ' + name + ', got ' + fn);\n }\n\n (this.params[name] = this.params[name] || []).push(fn);\n return this;\n};\n\n/**\n * Dispatch a req, res into the router.\n * @private\n */\n\nproto.handle = function handle(req, res, out) {\n var self = this;\n\n debug('dispatching %s %s', req.method, req.url);\n\n var idx = 0;\n var protohost = getProtohost(req.url) || ''\n var removed = '';\n var slashAdded = false;\n var sync = 0\n var paramcalled = {};\n\n // store options for OPTIONS request\n // only used if OPTIONS request\n var options = [];\n\n // middleware and routes\n var stack = self.stack;\n\n // manage inter-router variables\n var parentParams = req.params;\n var parentUrl = req.baseUrl || '';\n var done = restore(out, req, 'baseUrl', 'next', 'params');\n\n // setup next layer\n req.next = next;\n\n // for options requests, respond with a default if nothing else responds\n if (req.method === 'OPTIONS') {\n done = wrap(done, function(old, err) {\n if (err || options.length === 0) return old(err);\n sendOptionsResponse(res, options, old);\n });\n }\n\n // setup basic req values\n req.baseUrl = parentUrl;\n req.originalUrl = req.originalUrl || req.url;\n\n next();\n\n function next(err) {\n var layerError = err === 'route'\n ? null\n : err;\n\n // remove added slash\n if (slashAdded) {\n req.url = req.url.slice(1)\n slashAdded = false;\n }\n\n // restore altered req.url\n if (removed.length !== 0) {\n req.baseUrl = parentUrl;\n req.url = protohost + removed + req.url.slice(protohost.length)\n removed = '';\n }\n\n // signal to exit router\n if (layerError === 'router') {\n setImmediate(done, null)\n return\n }\n\n // no more matching layers\n if (idx >= stack.length) {\n setImmediate(done, layerError);\n return;\n }\n\n // max sync stack\n if (++sync > 100) {\n return setImmediate(next, err)\n }\n\n // get pathname of request\n var path = getPathname(req);\n\n if (path == null) {\n return done(layerError);\n }\n\n // find next matching layer\n var layer;\n var match;\n var route;\n\n while (match !== true && idx < stack.length) {\n layer = stack[idx++];\n match = matchLayer(layer, path);\n route = layer.route;\n\n if (typeof match !== 'boolean') {\n // hold on to layerError\n layerError = layerError || match;\n }\n\n if (match !== true) {\n continue;\n }\n\n if (!route) {\n // process non-route handlers normally\n continue;\n }\n\n if (layerError) {\n // routes do not match with a pending error\n match = false;\n continue;\n }\n\n var method = req.method;\n var has_method = route._handles_method(method);\n\n // build up automatic options response\n if (!has_method && method === 'OPTIONS') {\n appendMethods(options, route._options());\n }\n\n // don't even bother matching route\n if (!has_method && method !== 'HEAD') {\n match = false;\n }\n }\n\n // no match\n if (match !== true) {\n return done(layerError);\n }\n\n // store route for dispatch on change\n if (route) {\n req.route = route;\n }\n\n // Capture one-time layer values\n req.params = self.mergeParams\n ? mergeParams(layer.params, parentParams)\n : layer.params;\n var layerPath = layer.path;\n\n // this should be done for the layer\n self.process_params(layer, paramcalled, req, res, function (err) {\n if (err) {\n next(layerError || err)\n } else if (route) {\n layer.handle_request(req, res, next)\n } else {\n trim_prefix(layer, layerError, layerPath, path)\n }\n\n sync = 0\n });\n }\n\n function trim_prefix(layer, layerError, layerPath, path) {\n if (layerPath.length !== 0) {\n // Validate path is a prefix match\n if (layerPath !== path.slice(0, layerPath.length)) {\n next(layerError)\n return\n }\n\n // Validate path breaks on a path separator\n var c = path[layerPath.length]\n if (c && c !== '/' && c !== '.') return next(layerError)\n\n // Trim off the part of the url that matches the route\n // middleware (.use stuff) needs to have the path stripped\n debug('trim prefix (%s) from url %s', layerPath, req.url);\n removed = layerPath;\n req.url = protohost + req.url.slice(protohost.length + removed.length)\n\n // Ensure leading slash\n if (!protohost && req.url[0] !== '/') {\n req.url = '/' + req.url;\n slashAdded = true;\n }\n\n // Setup base URL (no trailing slash)\n req.baseUrl = parentUrl + (removed[removed.length - 1] === '/'\n ? removed.substring(0, removed.length - 1)\n : removed);\n }\n\n debug('%s %s : %s', layer.name, layerPath, req.originalUrl);\n\n if (layerError) {\n layer.handle_error(layerError, req, res, next);\n } else {\n layer.handle_request(req, res, next);\n }\n }\n};\n\n/**\n * Process any parameters for the layer.\n * @private\n */\n\nproto.process_params = function process_params(layer, called, req, res, done) {\n var params = this.params;\n\n // captured parameters from the layer, keys and values\n var keys = layer.keys;\n\n // fast track\n if (!keys || keys.length === 0) {\n return done();\n }\n\n var i = 0;\n var name;\n var paramIndex = 0;\n var key;\n var paramVal;\n var paramCallbacks;\n var paramCalled;\n\n // process params in order\n // param callbacks can be async\n function param(err) {\n if (err) {\n return done(err);\n }\n\n if (i >= keys.length ) {\n return done();\n }\n\n paramIndex = 0;\n key = keys[i++];\n name = key.name;\n paramVal = req.params[name];\n paramCallbacks = params[name];\n paramCalled = called[name];\n\n if (paramVal === undefined || !paramCallbacks) {\n return param();\n }\n\n // param previously called with same value or error occurred\n if (paramCalled && (paramCalled.match === paramVal\n || (paramCalled.error && paramCalled.error !== 'route'))) {\n // restore value\n req.params[name] = paramCalled.value;\n\n // next param\n return param(paramCalled.error);\n }\n\n called[name] = paramCalled = {\n error: null,\n match: paramVal,\n value: paramVal\n };\n\n paramCallback();\n }\n\n // single param callbacks\n function paramCallback(err) {\n var fn = paramCallbacks[paramIndex++];\n\n // store updated value\n paramCalled.value = req.params[key.name];\n\n if (err) {\n // store error\n paramCalled.error = err;\n param(err);\n return;\n }\n\n if (!fn) return param();\n\n try {\n fn(req, res, paramCallback, paramVal, key.name);\n } catch (e) {\n paramCallback(e);\n }\n }\n\n param();\n};\n\n/**\n * Use the given middleware function, with optional path, defaulting to \"/\".\n *\n * Use (like `.all`) will run for any http METHOD, but it will not add\n * handlers for those methods so OPTIONS requests will not consider `.use`\n * functions even if they could respond.\n *\n * The other difference is that _route_ path is stripped and not visible\n * to the handler function. The main effect of this feature is that mounted\n * handlers can operate without any code changes regardless of the \"prefix\"\n * pathname.\n *\n * @public\n */\n\nproto.use = function use(fn) {\n var offset = 0;\n var path = '/';\n\n // default path to '/'\n // disambiguate router.use([fn])\n if (typeof fn !== 'function') {\n var arg = fn;\n\n while (Array.isArray(arg) && arg.length !== 0) {\n arg = arg[0];\n }\n\n // first arg is the path\n if (typeof arg !== 'function') {\n offset = 1;\n path = fn;\n }\n }\n\n var callbacks = flatten(slice.call(arguments, offset));\n\n if (callbacks.length === 0) {\n throw new TypeError('Router.use() requires a middleware function')\n }\n\n for (var i = 0; i < callbacks.length; i++) {\n var fn = callbacks[i];\n\n if (typeof fn !== 'function') {\n throw new TypeError('Router.use() requires a middleware function but got a ' + gettype(fn))\n }\n\n // add the middleware\n debug('use %o %s', path, fn.name || '')\n\n var layer = new Layer(path, {\n sensitive: this.caseSensitive,\n strict: false,\n end: false\n }, fn);\n\n layer.route = undefined;\n\n this.stack.push(layer);\n }\n\n return this;\n};\n\n/**\n * Create a new Route for the given path.\n *\n * Each route contains a separate middleware stack and VERB handlers.\n *\n * See the Route api documentation for details on adding handlers\n * and middleware to routes.\n *\n * @param {String} path\n * @return {Route}\n * @public\n */\n\nproto.route = function route(path) {\n var route = new Route(path);\n\n var layer = new Layer(path, {\n sensitive: this.caseSensitive,\n strict: this.strict,\n end: true\n }, route.dispatch.bind(route));\n\n layer.route = route;\n\n this.stack.push(layer);\n return route;\n};\n\n// create Router#VERB functions\nmethods.concat('all').forEach(function(method){\n proto[method] = function(path){\n var route = this.route(path)\n route[method].apply(route, slice.call(arguments, 1));\n return this;\n };\n});\n\n// append methods to a list of methods\nfunction appendMethods(list, addition) {\n for (var i = 0; i < addition.length; i++) {\n var method = addition[i];\n if (list.indexOf(method) === -1) {\n list.push(method);\n }\n }\n}\n\n// get pathname of request\nfunction getPathname(req) {\n try {\n return parseUrl(req).pathname;\n } catch (err) {\n return undefined;\n }\n}\n\n// Get get protocol + host for a URL\nfunction getProtohost(url) {\n if (typeof url !== 'string' || url.length === 0 || url[0] === '/') {\n return undefined\n }\n\n var searchIndex = url.indexOf('?')\n var pathLength = searchIndex !== -1\n ? searchIndex\n : url.length\n var fqdnIndex = url.slice(0, pathLength).indexOf('://')\n\n return fqdnIndex !== -1\n ? url.substring(0, url.indexOf('/', 3 + fqdnIndex))\n : undefined\n}\n\n// get type for error message\nfunction gettype(obj) {\n var type = typeof obj;\n\n if (type !== 'object') {\n return type;\n }\n\n // inspect [[Class]] for objects\n return toString.call(obj)\n .replace(objectRegExp, '$1');\n}\n\n/**\n * Match path to a layer.\n *\n * @param {Layer} layer\n * @param {string} path\n * @private\n */\n\nfunction matchLayer(layer, path) {\n try {\n return layer.match(path);\n } catch (err) {\n return err;\n }\n}\n\n// merge params with parent params\nfunction mergeParams(params, parent) {\n if (typeof parent !== 'object' || !parent) {\n return params;\n }\n\n // make copy of parent for base\n var obj = mixin({}, parent);\n\n // simple non-numeric merging\n if (!(0 in params) || !(0 in parent)) {\n return mixin(obj, params);\n }\n\n var i = 0;\n var o = 0;\n\n // determine numeric gaps\n while (i in params) {\n i++;\n }\n\n while (o in parent) {\n o++;\n }\n\n // offset numeric indices in params before merge\n for (i--; i >= 0; i--) {\n params[i + o] = params[i];\n\n // create holes for the merge when necessary\n if (i < o) {\n delete params[i];\n }\n }\n\n return mixin(obj, params);\n}\n\n// restore obj props after function\nfunction restore(fn, obj) {\n var props = new Array(arguments.length - 2);\n var vals = new Array(arguments.length - 2);\n\n for (var i = 0; i < props.length; i++) {\n props[i] = arguments[i + 2];\n vals[i] = obj[props[i]];\n }\n\n return function () {\n // restore vals\n for (var i = 0; i < props.length; i++) {\n obj[props[i]] = vals[i];\n }\n\n return fn.apply(this, arguments);\n };\n}\n\n// send an OPTIONS response\nfunction sendOptionsResponse(res, options, next) {\n try {\n var body = options.join(',');\n res.set('Allow', body);\n res.send(body);\n } catch (err) {\n next(err);\n }\n}\n\n// wrap a function\nfunction wrap(old, fn) {\n return function proxy() {\n var args = new Array(arguments.length + 1);\n\n args[0] = old;\n for (var i = 0, len = arguments.length; i < len; i++) {\n args[i + 1] = arguments[i];\n }\n\n fn.apply(this, args);\n };\n}\n","/*!\n * express\n * Copyright(c) 2009-2013 TJ Holowaychuk\n * Copyright(c) 2013 Roman Shtylman\n * Copyright(c) 2014-2015 Douglas Christopher Wilson\n * MIT Licensed\n */\n\n'use strict';\n\n/**\n * Module dependencies.\n * @private\n */\n\nvar setPrototypeOf = require('setprototypeof')\n\n/**\n * Initialization middleware, exposing the\n * request and response to each other, as well\n * as defaulting the X-Powered-By header field.\n *\n * @param {Function} app\n * @return {Function}\n * @api private\n */\n\nexports.init = function(app){\n return function expressInit(req, res, next){\n if (app.enabled('x-powered-by')) res.setHeader('X-Powered-By', 'Express');\n req.res = res;\n res.req = req;\n req.next = next;\n\n setPrototypeOf(req, app.request)\n setPrototypeOf(res, app.response)\n\n res.locals = res.locals || Object.create(null);\n\n next();\n };\n};\n\n","/*!\n * express\n * Copyright(c) 2009-2013 TJ Holowaychuk\n * Copyright(c) 2013 Roman Shtylman\n * Copyright(c) 2014-2015 Douglas Christopher Wilson\n * MIT Licensed\n */\n\n'use strict';\n\n/**\n * Module dependencies.\n */\n\nvar merge = require('utils-merge')\nvar parseUrl = require('parseurl');\nvar qs = require('qs');\n\n/**\n * @param {Object} options\n * @return {Function}\n * @api public\n */\n\nmodule.exports = function query(options) {\n var opts = merge({}, options)\n var queryparse = qs.parse;\n\n if (typeof options === 'function') {\n queryparse = options;\n opts = undefined;\n }\n\n if (opts !== undefined && opts.allowPrototypes === undefined) {\n // back-compat for qs module\n opts.allowPrototypes = true;\n }\n\n return function query(req, res, next){\n if (!req.query) {\n var val = parseUrl(req).query;\n req.query = queryparse(val, opts);\n }\n\n next();\n };\n};\n","/*!\n * express\n * Copyright(c) 2009-2013 TJ Holowaychuk\n * Copyright(c) 2013 Roman Shtylman\n * Copyright(c) 2014-2015 Douglas Christopher Wilson\n * MIT Licensed\n */\n\n'use strict';\n\n/**\n * Module dependencies.\n * @private\n */\n\nvar debug = require('debug')('express:view');\nvar path = require('path');\nvar fs = require('fs');\n\n/**\n * Module variables.\n * @private\n */\n\nvar dirname = path.dirname;\nvar basename = path.basename;\nvar extname = path.extname;\nvar join = path.join;\nvar resolve = path.resolve;\n\n/**\n * Module exports.\n * @public\n */\n\nmodule.exports = View;\n\n/**\n * Initialize a new `View` with the given `name`.\n *\n * Options:\n *\n * - `defaultEngine` the default template engine name\n * - `engines` template engine require() cache\n * - `root` root path for view lookup\n *\n * @param {string} name\n * @param {object} options\n * @public\n */\n\nfunction View(name, options) {\n var opts = options || {};\n\n this.defaultEngine = opts.defaultEngine;\n this.ext = extname(name);\n this.name = name;\n this.root = opts.root;\n\n if (!this.ext && !this.defaultEngine) {\n throw new Error('No default engine was specified and no extension was provided.');\n }\n\n var fileName = name;\n\n if (!this.ext) {\n // get extension from default engine name\n this.ext = this.defaultEngine[0] !== '.'\n ? '.' + this.defaultEngine\n : this.defaultEngine;\n\n fileName += this.ext;\n }\n\n if (!opts.engines[this.ext]) {\n // load engine\n var mod = this.ext.slice(1)\n debug('require \"%s\"', mod)\n\n // default engine export\n var fn = require(mod).__express\n\n if (typeof fn !== 'function') {\n throw new Error('Module \"' + mod + '\" does not provide a view engine.')\n }\n\n opts.engines[this.ext] = fn\n }\n\n // store loaded engine\n this.engine = opts.engines[this.ext];\n\n // lookup path\n this.path = this.lookup(fileName);\n}\n\n/**\n * Lookup view by the given `name`\n *\n * @param {string} name\n * @private\n */\n\nView.prototype.lookup = function lookup(name) {\n var path;\n var roots = [].concat(this.root);\n\n debug('lookup \"%s\"', name);\n\n for (var i = 0; i < roots.length && !path; i++) {\n var root = roots[i];\n\n // resolve the path\n var loc = resolve(root, name);\n var dir = dirname(loc);\n var file = basename(loc);\n\n // resolve the file\n path = this.resolve(dir, file);\n }\n\n return path;\n};\n\n/**\n * Render with the given options.\n *\n * @param {object} options\n * @param {function} callback\n * @private\n */\n\nView.prototype.render = function render(options, callback) {\n debug('render \"%s\"', this.path);\n this.engine(this.path, options, callback);\n};\n\n/**\n * Resolve the file within the given directory.\n *\n * @param {string} dir\n * @param {string} file\n * @private\n */\n\nView.prototype.resolve = function resolve(dir, file) {\n var ext = this.ext;\n\n // .\n var path = join(dir, file);\n var stat = tryStat(path);\n\n if (stat && stat.isFile()) {\n return path;\n }\n\n // /index.\n path = join(dir, basename(file, ext), 'index' + ext);\n stat = tryStat(path);\n\n if (stat && stat.isFile()) {\n return path;\n }\n};\n\n/**\n * Return a stat, maybe.\n *\n * @param {string} path\n * @return {fs.Stats}\n * @private\n */\n\nfunction tryStat(path) {\n debug('stat \"%s\"', path);\n\n try {\n return fs.statSync(path);\n } catch (e) {\n return undefined;\n }\n}\n","/*! safe-buffer. MIT License. Feross Aboukhadijeh */\n/* eslint-disable node/no-deprecated-api */\nvar buffer = require('buffer')\nvar Buffer = buffer.Buffer\n\n// alternative to using Object.keys for old browsers\nfunction copyProps (src, dst) {\n for (var key in src) {\n dst[key] = src[key]\n }\n}\nif (Buffer.from && Buffer.alloc && Buffer.allocUnsafe && Buffer.allocUnsafeSlow) {\n module.exports = buffer\n} else {\n // Copy properties from require('buffer')\n copyProps(buffer, exports)\n exports.Buffer = SafeBuffer\n}\n\nfunction SafeBuffer (arg, encodingOrOffset, length) {\n return Buffer(arg, encodingOrOffset, length)\n}\n\nSafeBuffer.prototype = Object.create(Buffer.prototype)\n\n// Copy static methods from Buffer\ncopyProps(Buffer, SafeBuffer)\n\nSafeBuffer.from = function (arg, encodingOrOffset, length) {\n if (typeof arg === 'number') {\n throw new TypeError('Argument must not be a number')\n }\n return Buffer(arg, encodingOrOffset, length)\n}\n\nSafeBuffer.alloc = function (size, fill, encoding) {\n if (typeof size !== 'number') {\n throw new TypeError('Argument must be a number')\n }\n var buf = Buffer(size)\n if (fill !== undefined) {\n if (typeof encoding === 'string') {\n buf.fill(fill, encoding)\n } else {\n buf.fill(fill)\n }\n } else {\n buf.fill(0)\n }\n return buf\n}\n\nSafeBuffer.allocUnsafe = function (size) {\n if (typeof size !== 'number') {\n throw new TypeError('Argument must be a number')\n }\n return Buffer(size)\n}\n\nSafeBuffer.allocUnsafeSlow = function (size) {\n if (typeof size !== 'number') {\n throw new TypeError('Argument must be a number')\n }\n return buffer.SlowBuffer(size)\n}\n","/*!\n * content-disposition\n * Copyright(c) 2014-2017 Douglas Christopher Wilson\n * MIT Licensed\n */\n\n'use strict'\n\n/**\n * Module exports.\n * @public\n */\n\nmodule.exports = contentDisposition\nmodule.exports.parse = parse\n\n/**\n * Module dependencies.\n * @private\n */\n\nvar basename = require('path').basename\nvar Buffer = require('safe-buffer').Buffer\n\n/**\n * RegExp to match non attr-char, *after* encodeURIComponent (i.e. not including \"%\")\n * @private\n */\n\nvar ENCODE_URL_ATTR_CHAR_REGEXP = /[\\x00-\\x20\"'()*,/:;<=>?@[\\\\\\]{}\\x7f]/g // eslint-disable-line no-control-regex\n\n/**\n * RegExp to match percent encoding escape.\n * @private\n */\n\nvar HEX_ESCAPE_REGEXP = /%[0-9A-Fa-f]{2}/\nvar HEX_ESCAPE_REPLACE_REGEXP = /%([0-9A-Fa-f]{2})/g\n\n/**\n * RegExp to match non-latin1 characters.\n * @private\n */\n\nvar NON_LATIN1_REGEXP = /[^\\x20-\\x7e\\xa0-\\xff]/g\n\n/**\n * RegExp to match quoted-pair in RFC 2616\n *\n * quoted-pair = \"\\\" CHAR\n * CHAR = \n * @private\n */\n\nvar QESC_REGEXP = /\\\\([\\u0000-\\u007f])/g // eslint-disable-line no-control-regex\n\n/**\n * RegExp to match chars that must be quoted-pair in RFC 2616\n * @private\n */\n\nvar QUOTE_REGEXP = /([\\\\\"])/g\n\n/**\n * RegExp for various RFC 2616 grammar\n *\n * parameter = token \"=\" ( token | quoted-string )\n * token = 1*\n * separators = \"(\" | \")\" | \"<\" | \">\" | \"@\"\n * | \",\" | \";\" | \":\" | \"\\\" | <\">\n * | \"/\" | \"[\" | \"]\" | \"?\" | \"=\"\n * | \"{\" | \"}\" | SP | HT\n * quoted-string = ( <\"> *(qdtext | quoted-pair ) <\"> )\n * qdtext = >\n * quoted-pair = \"\\\" CHAR\n * CHAR = \n * TEXT = \n * LWS = [CRLF] 1*( SP | HT )\n * CRLF = CR LF\n * CR = \n * LF = \n * SP = \n * HT = \n * CTL = \n * OCTET = \n * @private\n */\n\nvar PARAM_REGEXP = /;[\\x09\\x20]*([!#$%&'*+.0-9A-Z^_`a-z|~-]+)[\\x09\\x20]*=[\\x09\\x20]*(\"(?:[\\x20!\\x23-\\x5b\\x5d-\\x7e\\x80-\\xff]|\\\\[\\x20-\\x7e])*\"|[!#$%&'*+.0-9A-Z^_`a-z|~-]+)[\\x09\\x20]*/g // eslint-disable-line no-control-regex\nvar TEXT_REGEXP = /^[\\x20-\\x7e\\x80-\\xff]+$/\nvar TOKEN_REGEXP = /^[!#$%&'*+.0-9A-Z^_`a-z|~-]+$/\n\n/**\n * RegExp for various RFC 5987 grammar\n *\n * ext-value = charset \"'\" [ language ] \"'\" value-chars\n * charset = \"UTF-8\" / \"ISO-8859-1\" / mime-charset\n * mime-charset = 1*mime-charsetc\n * mime-charsetc = ALPHA / DIGIT\n * / \"!\" / \"#\" / \"$\" / \"%\" / \"&\"\n * / \"+\" / \"-\" / \"^\" / \"_\" / \"`\"\n * / \"{\" / \"}\" / \"~\"\n * language = ( 2*3ALPHA [ extlang ] )\n * / 4ALPHA\n * / 5*8ALPHA\n * extlang = *3( \"-\" 3ALPHA )\n * value-chars = *( pct-encoded / attr-char )\n * pct-encoded = \"%\" HEXDIG HEXDIG\n * attr-char = ALPHA / DIGIT\n * / \"!\" / \"#\" / \"$\" / \"&\" / \"+\" / \"-\" / \".\"\n * / \"^\" / \"_\" / \"`\" / \"|\" / \"~\"\n * @private\n */\n\nvar EXT_VALUE_REGEXP = /^([A-Za-z0-9!#$%&+\\-^_`{}~]+)'(?:[A-Za-z]{2,3}(?:-[A-Za-z]{3}){0,3}|[A-Za-z]{4,8}|)'((?:%[0-9A-Fa-f]{2}|[A-Za-z0-9!#$&+.^_`|~-])+)$/\n\n/**\n * RegExp for various RFC 6266 grammar\n *\n * disposition-type = \"inline\" | \"attachment\" | disp-ext-type\n * disp-ext-type = token\n * disposition-parm = filename-parm | disp-ext-parm\n * filename-parm = \"filename\" \"=\" value\n * | \"filename*\" \"=\" ext-value\n * disp-ext-parm = token \"=\" value\n * | ext-token \"=\" ext-value\n * ext-token = \n * @private\n */\n\nvar DISPOSITION_TYPE_REGEXP = /^([!#$%&'*+.0-9A-Z^_`a-z|~-]+)[\\x09\\x20]*(?:$|;)/ // eslint-disable-line no-control-regex\n\n/**\n * Create an attachment Content-Disposition header.\n *\n * @param {string} [filename]\n * @param {object} [options]\n * @param {string} [options.type=attachment]\n * @param {string|boolean} [options.fallback=true]\n * @return {string}\n * @public\n */\n\nfunction contentDisposition (filename, options) {\n var opts = options || {}\n\n // get type\n var type = opts.type || 'attachment'\n\n // get parameters\n var params = createparams(filename, opts.fallback)\n\n // format into string\n return format(new ContentDisposition(type, params))\n}\n\n/**\n * Create parameters object from filename and fallback.\n *\n * @param {string} [filename]\n * @param {string|boolean} [fallback=true]\n * @return {object}\n * @private\n */\n\nfunction createparams (filename, fallback) {\n if (filename === undefined) {\n return\n }\n\n var params = {}\n\n if (typeof filename !== 'string') {\n throw new TypeError('filename must be a string')\n }\n\n // fallback defaults to true\n if (fallback === undefined) {\n fallback = true\n }\n\n if (typeof fallback !== 'string' && typeof fallback !== 'boolean') {\n throw new TypeError('fallback must be a string or boolean')\n }\n\n if (typeof fallback === 'string' && NON_LATIN1_REGEXP.test(fallback)) {\n throw new TypeError('fallback must be ISO-8859-1 string')\n }\n\n // restrict to file base name\n var name = basename(filename)\n\n // determine if name is suitable for quoted string\n var isQuotedString = TEXT_REGEXP.test(name)\n\n // generate fallback name\n var fallbackName = typeof fallback !== 'string'\n ? fallback && getlatin1(name)\n : basename(fallback)\n var hasFallback = typeof fallbackName === 'string' && fallbackName !== name\n\n // set extended filename parameter\n if (hasFallback || !isQuotedString || HEX_ESCAPE_REGEXP.test(name)) {\n params['filename*'] = name\n }\n\n // set filename parameter\n if (isQuotedString || hasFallback) {\n params.filename = hasFallback\n ? fallbackName\n : name\n }\n\n return params\n}\n\n/**\n * Format object to Content-Disposition header.\n *\n * @param {object} obj\n * @param {string} obj.type\n * @param {object} [obj.parameters]\n * @return {string}\n * @private\n */\n\nfunction format (obj) {\n var parameters = obj.parameters\n var type = obj.type\n\n if (!type || typeof type !== 'string' || !TOKEN_REGEXP.test(type)) {\n throw new TypeError('invalid type')\n }\n\n // start with normalized type\n var string = String(type).toLowerCase()\n\n // append parameters\n if (parameters && typeof parameters === 'object') {\n var param\n var params = Object.keys(parameters).sort()\n\n for (var i = 0; i < params.length; i++) {\n param = params[i]\n\n var val = param.substr(-1) === '*'\n ? ustring(parameters[param])\n : qstring(parameters[param])\n\n string += '; ' + param + '=' + val\n }\n }\n\n return string\n}\n\n/**\n * Decode a RFC 5987 field value (gracefully).\n *\n * @param {string} str\n * @return {string}\n * @private\n */\n\nfunction decodefield (str) {\n var match = EXT_VALUE_REGEXP.exec(str)\n\n if (!match) {\n throw new TypeError('invalid extended field value')\n }\n\n var charset = match[1].toLowerCase()\n var encoded = match[2]\n var value\n\n // to binary string\n var binary = encoded.replace(HEX_ESCAPE_REPLACE_REGEXP, pdecode)\n\n switch (charset) {\n case 'iso-8859-1':\n value = getlatin1(binary)\n break\n case 'utf-8':\n value = Buffer.from(binary, 'binary').toString('utf8')\n break\n default:\n throw new TypeError('unsupported charset in extended field')\n }\n\n return value\n}\n\n/**\n * Get ISO-8859-1 version of string.\n *\n * @param {string} val\n * @return {string}\n * @private\n */\n\nfunction getlatin1 (val) {\n // simple Unicode -> ISO-8859-1 transformation\n return String(val).replace(NON_LATIN1_REGEXP, '?')\n}\n\n/**\n * Parse Content-Disposition header string.\n *\n * @param {string} string\n * @return {object}\n * @public\n */\n\nfunction parse (string) {\n if (!string || typeof string !== 'string') {\n throw new TypeError('argument string is required')\n }\n\n var match = DISPOSITION_TYPE_REGEXP.exec(string)\n\n if (!match) {\n throw new TypeError('invalid type format')\n }\n\n // normalize type\n var index = match[0].length\n var type = match[1].toLowerCase()\n\n var key\n var names = []\n var params = {}\n var value\n\n // calculate index to start at\n index = PARAM_REGEXP.lastIndex = match[0].substr(-1) === ';'\n ? index - 1\n : index\n\n // match parameters\n while ((match = PARAM_REGEXP.exec(string))) {\n if (match.index !== index) {\n throw new TypeError('invalid parameter format')\n }\n\n index += match[0].length\n key = match[1].toLowerCase()\n value = match[2]\n\n if (names.indexOf(key) !== -1) {\n throw new TypeError('invalid duplicate parameter')\n }\n\n names.push(key)\n\n if (key.indexOf('*') + 1 === key.length) {\n // decode extended value\n key = key.slice(0, -1)\n value = decodefield(value)\n\n // overwrite existing value\n params[key] = value\n continue\n }\n\n if (typeof params[key] === 'string') {\n continue\n }\n\n if (value[0] === '\"') {\n // remove quotes and escapes\n value = value\n .substr(1, value.length - 2)\n .replace(QESC_REGEXP, '$1')\n }\n\n params[key] = value\n }\n\n if (index !== -1 && index !== string.length) {\n throw new TypeError('invalid parameter format')\n }\n\n return new ContentDisposition(type, params)\n}\n\n/**\n * Percent decode a single character.\n *\n * @param {string} str\n * @param {string} hex\n * @return {string}\n * @private\n */\n\nfunction pdecode (str, hex) {\n return String.fromCharCode(parseInt(hex, 16))\n}\n\n/**\n * Percent encode a single character.\n *\n * @param {string} char\n * @return {string}\n * @private\n */\n\nfunction pencode (char) {\n return '%' + String(char)\n .charCodeAt(0)\n .toString(16)\n .toUpperCase()\n}\n\n/**\n * Quote a string for HTTP.\n *\n * @param {string} val\n * @return {string}\n * @private\n */\n\nfunction qstring (val) {\n var str = String(val)\n\n return '\"' + str.replace(QUOTE_REGEXP, '\\\\$1') + '\"'\n}\n\n/**\n * Encode a Unicode string for HTTP (RFC 5987).\n *\n * @param {string} val\n * @return {string}\n * @private\n */\n\nfunction ustring (val) {\n var str = String(val)\n\n // percent encode as UTF-8\n var encoded = encodeURIComponent(str)\n .replace(ENCODE_URL_ATTR_CHAR_REGEXP, pencode)\n\n return 'UTF-8\\'\\'' + encoded\n}\n\n/**\n * Class for parsed Content-Disposition header for v8 optimization\n *\n * @public\n * @param {string} type\n * @param {object} parameters\n * @constructor\n */\n\nfunction ContentDisposition (type, parameters) {\n this.type = type\n this.parameters = parameters\n}\n","/**\n * Helpers.\n */\n\nvar s = 1000;\nvar m = s * 60;\nvar h = m * 60;\nvar d = h * 24;\nvar y = d * 365.25;\n\n/**\n * Parse or format the given `val`.\n *\n * Options:\n *\n * - `long` verbose formatting [false]\n *\n * @param {String|Number} val\n * @param {Object} [options]\n * @throws {Error} throw an error if val is not a non-empty string or a number\n * @return {String|Number}\n * @api public\n */\n\nmodule.exports = function(val, options) {\n options = options || {};\n var type = typeof val;\n if (type === 'string' && val.length > 0) {\n return parse(val);\n } else if (type === 'number' && isNaN(val) === false) {\n return options.long ? fmtLong(val) : fmtShort(val);\n }\n throw new Error(\n 'val is not a non-empty string or a valid number. val=' +\n JSON.stringify(val)\n );\n};\n\n/**\n * Parse the given `str` and return milliseconds.\n *\n * @param {String} str\n * @return {Number}\n * @api private\n */\n\nfunction parse(str) {\n str = String(str);\n if (str.length > 100) {\n return;\n }\n var match = /^((?:\\d+)?\\.?\\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|years?|yrs?|y)?$/i.exec(\n str\n );\n if (!match) {\n return;\n }\n var n = parseFloat(match[1]);\n var type = (match[2] || 'ms').toLowerCase();\n switch (type) {\n case 'years':\n case 'year':\n case 'yrs':\n case 'yr':\n case 'y':\n return n * y;\n case 'days':\n case 'day':\n case 'd':\n return n * d;\n case 'hours':\n case 'hour':\n case 'hrs':\n case 'hr':\n case 'h':\n return n * h;\n case 'minutes':\n case 'minute':\n case 'mins':\n case 'min':\n case 'm':\n return n * m;\n case 'seconds':\n case 'second':\n case 'secs':\n case 'sec':\n case 's':\n return n * s;\n case 'milliseconds':\n case 'millisecond':\n case 'msecs':\n case 'msec':\n case 'ms':\n return n;\n default:\n return undefined;\n }\n}\n\n/**\n * Short format for `ms`.\n *\n * @param {Number} ms\n * @return {String}\n * @api private\n */\n\nfunction fmtShort(ms) {\n if (ms >= d) {\n return Math.round(ms / d) + 'd';\n }\n if (ms >= h) {\n return Math.round(ms / h) + 'h';\n }\n if (ms >= m) {\n return Math.round(ms / m) + 'm';\n }\n if (ms >= s) {\n return Math.round(ms / s) + 's';\n }\n return ms + 'ms';\n}\n\n/**\n * Long format for `ms`.\n *\n * @param {Number} ms\n * @return {String}\n * @api private\n */\n\nfunction fmtLong(ms) {\n return plural(ms, d, 'day') ||\n plural(ms, h, 'hour') ||\n plural(ms, m, 'minute') ||\n plural(ms, s, 'second') ||\n ms + ' ms';\n}\n\n/**\n * Pluralization helper.\n */\n\nfunction plural(ms, n, name) {\n if (ms < n) {\n return;\n }\n if (ms < n * 1.5) {\n return Math.floor(ms / n) + ' ' + name;\n }\n return Math.ceil(ms / n) + ' ' + name + 's';\n}\n","\n/**\n * This is the common logic for both the Node.js and web browser\n * implementations of `debug()`.\n *\n * Expose `debug()` as the module.\n */\n\nexports = module.exports = createDebug.debug = createDebug['default'] = createDebug;\nexports.coerce = coerce;\nexports.disable = disable;\nexports.enable = enable;\nexports.enabled = enabled;\nexports.humanize = require('ms');\n\n/**\n * The currently active debug mode names, and names to skip.\n */\n\nexports.names = [];\nexports.skips = [];\n\n/**\n * Map of special \"%n\" handling functions, for the debug \"format\" argument.\n *\n * Valid key names are a single, lower or upper-case letter, i.e. \"n\" and \"N\".\n */\n\nexports.formatters = {};\n\n/**\n * Previous log timestamp.\n */\n\nvar prevTime;\n\n/**\n * Select a color.\n * @param {String} namespace\n * @return {Number}\n * @api private\n */\n\nfunction selectColor(namespace) {\n var hash = 0, i;\n\n for (i in namespace) {\n hash = ((hash << 5) - hash) + namespace.charCodeAt(i);\n hash |= 0; // Convert to 32bit integer\n }\n\n return exports.colors[Math.abs(hash) % exports.colors.length];\n}\n\n/**\n * Create a debugger with the given `namespace`.\n *\n * @param {String} namespace\n * @return {Function}\n * @api public\n */\n\nfunction createDebug(namespace) {\n\n function debug() {\n // disabled?\n if (!debug.enabled) return;\n\n var self = debug;\n\n // set `diff` timestamp\n var curr = +new Date();\n var ms = curr - (prevTime || curr);\n self.diff = ms;\n self.prev = prevTime;\n self.curr = curr;\n prevTime = curr;\n\n // turn the `arguments` into a proper Array\n var args = new Array(arguments.length);\n for (var i = 0; i < args.length; i++) {\n args[i] = arguments[i];\n }\n\n args[0] = exports.coerce(args[0]);\n\n if ('string' !== typeof args[0]) {\n // anything else let's inspect with %O\n args.unshift('%O');\n }\n\n // apply any `formatters` transformations\n var index = 0;\n args[0] = args[0].replace(/%([a-zA-Z%])/g, function(match, format) {\n // if we encounter an escaped % then don't increase the array index\n if (match === '%%') return match;\n index++;\n var formatter = exports.formatters[format];\n if ('function' === typeof formatter) {\n var val = args[index];\n match = formatter.call(self, val);\n\n // now we need to remove `args[index]` since it's inlined in the `format`\n args.splice(index, 1);\n index--;\n }\n return match;\n });\n\n // apply env-specific formatting (colors, etc.)\n exports.formatArgs.call(self, args);\n\n var logFn = debug.log || exports.log || console.log.bind(console);\n logFn.apply(self, args);\n }\n\n debug.namespace = namespace;\n debug.enabled = exports.enabled(namespace);\n debug.useColors = exports.useColors();\n debug.color = selectColor(namespace);\n\n // env-specific initialization logic for debug instances\n if ('function' === typeof exports.init) {\n exports.init(debug);\n }\n\n return debug;\n}\n\n/**\n * Enables a debug mode by namespaces. This can include modes\n * separated by a colon and wildcards.\n *\n * @param {String} namespaces\n * @api public\n */\n\nfunction enable(namespaces) {\n exports.save(namespaces);\n\n exports.names = [];\n exports.skips = [];\n\n var split = (typeof namespaces === 'string' ? namespaces : '').split(/[\\s,]+/);\n var len = split.length;\n\n for (var i = 0; i < len; i++) {\n if (!split[i]) continue; // ignore empty strings\n namespaces = split[i].replace(/\\*/g, '.*?');\n if (namespaces[0] === '-') {\n exports.skips.push(new RegExp('^' + namespaces.substr(1) + '$'));\n } else {\n exports.names.push(new RegExp('^' + namespaces + '$'));\n }\n }\n}\n\n/**\n * Disable debug output.\n *\n * @api public\n */\n\nfunction disable() {\n exports.enable('');\n}\n\n/**\n * Returns true if the given mode name is enabled, false otherwise.\n *\n * @param {String} name\n * @return {Boolean}\n * @api public\n */\n\nfunction enabled(name) {\n var i, len;\n for (i = 0, len = exports.skips.length; i < len; i++) {\n if (exports.skips[i].test(name)) {\n return false;\n }\n }\n for (i = 0, len = exports.names.length; i < len; i++) {\n if (exports.names[i].test(name)) {\n return true;\n }\n }\n return false;\n}\n\n/**\n * Coerce `val`.\n *\n * @param {Mixed} val\n * @return {Mixed}\n * @api private\n */\n\nfunction coerce(val) {\n if (val instanceof Error) return val.stack || val.message;\n return val;\n}\n","/**\n * This is the web browser implementation of `debug()`.\n *\n * Expose `debug()` as the module.\n */\n\nexports = module.exports = require('./debug');\nexports.log = log;\nexports.formatArgs = formatArgs;\nexports.save = save;\nexports.load = load;\nexports.useColors = useColors;\nexports.storage = 'undefined' != typeof chrome\n && 'undefined' != typeof chrome.storage\n ? chrome.storage.local\n : localstorage();\n\n/**\n * Colors.\n */\n\nexports.colors = [\n 'lightseagreen',\n 'forestgreen',\n 'goldenrod',\n 'dodgerblue',\n 'darkorchid',\n 'crimson'\n];\n\n/**\n * Currently only WebKit-based Web Inspectors, Firefox >= v31,\n * and the Firebug extension (any Firefox version) are known\n * to support \"%c\" CSS customizations.\n *\n * TODO: add a `localStorage` variable to explicitly enable/disable colors\n */\n\nfunction useColors() {\n // NB: In an Electron preload script, document will be defined but not fully\n // initialized. Since we know we're in Chrome, we'll just detect this case\n // explicitly\n if (typeof window !== 'undefined' && window.process && window.process.type === 'renderer') {\n return true;\n }\n\n // is webkit? http://stackoverflow.com/a/16459606/376773\n // document is undefined in react-native: https://github.com/facebook/react-native/pull/1632\n return (typeof document !== 'undefined' && document.documentElement && document.documentElement.style && document.documentElement.style.WebkitAppearance) ||\n // is firebug? http://stackoverflow.com/a/398120/376773\n (typeof window !== 'undefined' && window.console && (window.console.firebug || (window.console.exception && window.console.table))) ||\n // is firefox >= v31?\n // https://developer.mozilla.org/en-US/docs/Tools/Web_Console#Styling_messages\n (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/firefox\\/(\\d+)/) && parseInt(RegExp.$1, 10) >= 31) ||\n // double check webkit in userAgent just in case we are in a worker\n (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/applewebkit\\/(\\d+)/));\n}\n\n/**\n * Map %j to `JSON.stringify()`, since no Web Inspectors do that by default.\n */\n\nexports.formatters.j = function(v) {\n try {\n return JSON.stringify(v);\n } catch (err) {\n return '[UnexpectedJSONParseError]: ' + err.message;\n }\n};\n\n\n/**\n * Colorize log arguments if enabled.\n *\n * @api public\n */\n\nfunction formatArgs(args) {\n var useColors = this.useColors;\n\n args[0] = (useColors ? '%c' : '')\n + this.namespace\n + (useColors ? ' %c' : ' ')\n + args[0]\n + (useColors ? '%c ' : ' ')\n + '+' + exports.humanize(this.diff);\n\n if (!useColors) return;\n\n var c = 'color: ' + this.color;\n args.splice(1, 0, c, 'color: inherit')\n\n // the final \"%c\" is somewhat tricky, because there could be other\n // arguments passed either before or after the %c, so we need to\n // figure out the correct index to insert the CSS into\n var index = 0;\n var lastC = 0;\n args[0].replace(/%[a-zA-Z%]/g, function(match) {\n if ('%%' === match) return;\n index++;\n if ('%c' === match) {\n // we only are interested in the *last* %c\n // (the user may have provided their own)\n lastC = index;\n }\n });\n\n args.splice(lastC, 0, c);\n}\n\n/**\n * Invokes `console.log()` when available.\n * No-op when `console.log` is not a \"function\".\n *\n * @api public\n */\n\nfunction log() {\n // this hackery is required for IE8/9, where\n // the `console.log` function doesn't have 'apply'\n return 'object' === typeof console\n && console.log\n && Function.prototype.apply.call(console.log, console, arguments);\n}\n\n/**\n * Save `namespaces`.\n *\n * @param {String} namespaces\n * @api private\n */\n\nfunction save(namespaces) {\n try {\n if (null == namespaces) {\n exports.storage.removeItem('debug');\n } else {\n exports.storage.debug = namespaces;\n }\n } catch(e) {}\n}\n\n/**\n * Load `namespaces`.\n *\n * @return {String} returns the previously persisted debug modes\n * @api private\n */\n\nfunction load() {\n var r;\n try {\n r = exports.storage.debug;\n } catch(e) {}\n\n // If debug isn't set in LS, and we're in Electron, try to load $DEBUG\n if (!r && typeof process !== 'undefined' && 'env' in process) {\n r = process.env.DEBUG;\n }\n\n return r;\n}\n\n/**\n * Enable namespaces listed in `localStorage.debug` initially.\n */\n\nexports.enable(load());\n\n/**\n * Localstorage attempts to return the localstorage.\n *\n * This is necessary because safari throws\n * when a user disables cookies/localstorage\n * and you attempt to access it.\n *\n * @return {LocalStorage}\n * @api private\n */\n\nfunction localstorage() {\n try {\n return window.localStorage;\n } catch (e) {}\n}\n","/*!\n * encodeurl\n * Copyright(c) 2016 Douglas Christopher Wilson\n * MIT Licensed\n */\n\n'use strict'\n\n/**\n * Module exports.\n * @public\n */\n\nmodule.exports = encodeUrl\n\n/**\n * RegExp to match non-URL code points, *after* encoding (i.e. not including \"%\")\n * and including invalid escape sequences.\n * @private\n */\n\nvar ENCODE_CHARS_REGEXP = /(?:[^\\x21\\x25\\x26-\\x3B\\x3D\\x3F-\\x5B\\x5D\\x5F\\x61-\\x7A\\x7E]|%(?:[^0-9A-Fa-f]|[0-9A-Fa-f][^0-9A-Fa-f]|$))+/g\n\n/**\n * RegExp to match unmatched surrogate pair.\n * @private\n */\n\nvar UNMATCHED_SURROGATE_PAIR_REGEXP = /(^|[^\\uD800-\\uDBFF])[\\uDC00-\\uDFFF]|[\\uD800-\\uDBFF]([^\\uDC00-\\uDFFF]|$)/g\n\n/**\n * String to replace unmatched surrogate pair with.\n * @private\n */\n\nvar UNMATCHED_SURROGATE_PAIR_REPLACE = '$1\\uFFFD$2'\n\n/**\n * Encode a URL to a percent-encoded form, excluding already-encoded sequences.\n *\n * This function will take an already-encoded URL and encode all the non-URL\n * code points. This function will not encode the \"%\" character unless it is\n * not part of a valid sequence (`%20` will be left as-is, but `%foo` will\n * be encoded as `%25foo`).\n *\n * This encode is meant to be \"safe\" and does not throw errors. It will try as\n * hard as it can to properly encode the given URL, including replacing any raw,\n * unpaired surrogate pairs with the Unicode replacement character prior to\n * encoding.\n *\n * @param {string} url\n * @return {string}\n * @public\n */\n\nfunction encodeUrl (url) {\n return String(url)\n .replace(UNMATCHED_SURROGATE_PAIR_REGEXP, UNMATCHED_SURROGATE_PAIR_REPLACE)\n .replace(ENCODE_CHARS_REGEXP, encodeURI)\n}\n","/*!\n * etag\n * Copyright(c) 2014-2016 Douglas Christopher Wilson\n * MIT Licensed\n */\n\n'use strict'\n\n/**\n * Module exports.\n * @public\n */\n\nmodule.exports = etag\n\n/**\n * Module dependencies.\n * @private\n */\n\nvar crypto = require('crypto')\nvar Stats = require('fs').Stats\n\n/**\n * Module variables.\n * @private\n */\n\nvar toString = Object.prototype.toString\n\n/**\n * Generate an entity tag.\n *\n * @param {Buffer|string} entity\n * @return {string}\n * @private\n */\n\nfunction entitytag (entity) {\n if (entity.length === 0) {\n // fast-path empty\n return '\"0-2jmj7l5rSw0yVb/vlWAYkK/YBwk\"'\n }\n\n // compute hash of entity\n var hash = crypto\n .createHash('sha1')\n .update(entity, 'utf8')\n .digest('base64')\n .substring(0, 27)\n\n // compute length of entity\n var len = typeof entity === 'string'\n ? Buffer.byteLength(entity, 'utf8')\n : entity.length\n\n return '\"' + len.toString(16) + '-' + hash + '\"'\n}\n\n/**\n * Create a simple ETag.\n *\n * @param {string|Buffer|Stats} entity\n * @param {object} [options]\n * @param {boolean} [options.weak]\n * @return {String}\n * @public\n */\n\nfunction etag (entity, options) {\n if (entity == null) {\n throw new TypeError('argument entity is required')\n }\n\n // support fs.Stats object\n var isStats = isstats(entity)\n var weak = options && typeof options.weak === 'boolean'\n ? options.weak\n : isStats\n\n // validate argument\n if (!isStats && typeof entity !== 'string' && !Buffer.isBuffer(entity)) {\n throw new TypeError('argument entity must be string, Buffer, or fs.Stats')\n }\n\n // generate entity tag\n var tag = isStats\n ? stattag(entity)\n : entitytag(entity)\n\n return weak\n ? 'W/' + tag\n : tag\n}\n\n/**\n * Determine if object is a Stats object.\n *\n * @param {object} obj\n * @return {boolean}\n * @api private\n */\n\nfunction isstats (obj) {\n // genuine fs.Stats\n if (typeof Stats === 'function' && obj instanceof Stats) {\n return true\n }\n\n // quack quack\n return obj && typeof obj === 'object' &&\n 'ctime' in obj && toString.call(obj.ctime) === '[object Date]' &&\n 'mtime' in obj && toString.call(obj.mtime) === '[object Date]' &&\n 'ino' in obj && typeof obj.ino === 'number' &&\n 'size' in obj && typeof obj.size === 'number'\n}\n\n/**\n * Generate a tag for a stat.\n *\n * @param {object} stat\n * @return {string}\n * @private\n */\n\nfunction stattag (stat) {\n var mtime = stat.mtime.getTime().toString(16)\n var size = stat.size.toString(16)\n\n return '\"' + size + '-' + mtime + '\"'\n}\n","/*!\n * fresh\n * Copyright(c) 2012 TJ Holowaychuk\n * Copyright(c) 2016-2017 Douglas Christopher Wilson\n * MIT Licensed\n */\n\n'use strict'\n\n/**\n * RegExp to check for no-cache token in Cache-Control.\n * @private\n */\n\nvar CACHE_CONTROL_NO_CACHE_REGEXP = /(?:^|,)\\s*?no-cache\\s*?(?:,|$)/\n\n/**\n * Module exports.\n * @public\n */\n\nmodule.exports = fresh\n\n/**\n * Check freshness of the response using request and response headers.\n *\n * @param {Object} reqHeaders\n * @param {Object} resHeaders\n * @return {Boolean}\n * @public\n */\n\nfunction fresh (reqHeaders, resHeaders) {\n // fields\n var modifiedSince = reqHeaders['if-modified-since']\n var noneMatch = reqHeaders['if-none-match']\n\n // unconditional request\n if (!modifiedSince && !noneMatch) {\n return false\n }\n\n // Always return stale when Cache-Control: no-cache\n // to support end-to-end reload requests\n // https://tools.ietf.org/html/rfc2616#section-14.9.4\n var cacheControl = reqHeaders['cache-control']\n if (cacheControl && CACHE_CONTROL_NO_CACHE_REGEXP.test(cacheControl)) {\n return false\n }\n\n // if-none-match\n if (noneMatch && noneMatch !== '*') {\n var etag = resHeaders['etag']\n\n if (!etag) {\n return false\n }\n\n var etagStale = true\n var matches = parseTokenList(noneMatch)\n for (var i = 0; i < matches.length; i++) {\n var match = matches[i]\n if (match === etag || match === 'W/' + etag || 'W/' + match === etag) {\n etagStale = false\n break\n }\n }\n\n if (etagStale) {\n return false\n }\n }\n\n // if-modified-since\n if (modifiedSince) {\n var lastModified = resHeaders['last-modified']\n var modifiedStale = !lastModified || !(parseHttpDate(lastModified) <= parseHttpDate(modifiedSince))\n\n if (modifiedStale) {\n return false\n }\n }\n\n return true\n}\n\n/**\n * Parse an HTTP Date into a number.\n *\n * @param {string} date\n * @private\n */\n\nfunction parseHttpDate (date) {\n var timestamp = date && Date.parse(date)\n\n // istanbul ignore next: guard against date.js Date.parse patching\n return typeof timestamp === 'number'\n ? timestamp\n : NaN\n}\n\n/**\n * Parse a HTTP token list.\n *\n * @param {string} str\n * @private\n */\n\nfunction parseTokenList (str) {\n var end = 0\n var list = []\n var start = 0\n\n // gather tokens\n for (var i = 0, len = str.length; i < len; i++) {\n switch (str.charCodeAt(i)) {\n case 0x20: /* */\n if (start === end) {\n start = end = i + 1\n }\n break\n case 0x2c: /* , */\n list.push(str.substring(start, end))\n start = end = i + 1\n break\n default:\n end = i + 1\n break\n }\n }\n\n // final token\n list.push(str.substring(start, end))\n\n return list\n}\n","var path = require('path');\nvar fs = require('fs');\n\nfunction Mime() {\n // Map of extension -> mime type\n this.types = Object.create(null);\n\n // Map of mime type -> extension\n this.extensions = Object.create(null);\n}\n\n/**\n * Define mimetype -> extension mappings. Each key is a mime-type that maps\n * to an array of extensions associated with the type. The first extension is\n * used as the default extension for the type.\n *\n * e.g. mime.define({'audio/ogg', ['oga', 'ogg', 'spx']});\n *\n * @param map (Object) type definitions\n */\nMime.prototype.define = function (map) {\n for (var type in map) {\n var exts = map[type];\n for (var i = 0; i < exts.length; i++) {\n if (process.env.DEBUG_MIME && this.types[exts[i]]) {\n console.warn((this._loading || \"define()\").replace(/.*\\//, ''), 'changes \"' + exts[i] + '\" extension type from ' +\n this.types[exts[i]] + ' to ' + type);\n }\n\n this.types[exts[i]] = type;\n }\n\n // Default extension is the first one we encounter\n if (!this.extensions[type]) {\n this.extensions[type] = exts[0];\n }\n }\n};\n\n/**\n * Load an Apache2-style \".types\" file\n *\n * This may be called multiple times (it's expected). Where files declare\n * overlapping types/extensions, the last file wins.\n *\n * @param file (String) path of file to load.\n */\nMime.prototype.load = function(file) {\n this._loading = file;\n // Read file and split into lines\n var map = {},\n content = fs.readFileSync(file, 'ascii'),\n lines = content.split(/[\\r\\n]+/);\n\n lines.forEach(function(line) {\n // Clean up whitespace/comments, and split into fields\n var fields = line.replace(/\\s*#.*|^\\s*|\\s*$/g, '').split(/\\s+/);\n map[fields.shift()] = fields;\n });\n\n this.define(map);\n\n this._loading = null;\n};\n\n/**\n * Lookup a mime type based on extension\n */\nMime.prototype.lookup = function(path, fallback) {\n var ext = path.replace(/^.*[\\.\\/\\\\]/, '').toLowerCase();\n\n return this.types[ext] || fallback || this.default_type;\n};\n\n/**\n * Return file extension associated with a mime type\n */\nMime.prototype.extension = function(mimeType) {\n var type = mimeType.match(/^\\s*([^;\\s]*)(?:;|\\s|$)/)[1].toLowerCase();\n return this.extensions[type];\n};\n\n// Default instance\nvar mime = new Mime();\n\n// Define built-in types\nmime.define(require('./types.json'));\n\n// Default type\nmime.default_type = mime.lookup('bin');\n\n//\n// Additional API specific to the default instance\n//\n\nmime.Mime = Mime;\n\n/**\n * Lookup a charset based on mime type.\n */\nmime.charsets = {\n lookup: function(mimeType, fallback) {\n // Assume text types are utf8\n return (/^text\\/|^application\\/(javascript|json)/).test(mimeType) ? 'UTF-8' : fallback;\n }\n};\n\nmodule.exports = mime;\n","/**\n * Helpers.\n */\n\nvar s = 1000;\nvar m = s * 60;\nvar h = m * 60;\nvar d = h * 24;\nvar w = d * 7;\nvar y = d * 365.25;\n\n/**\n * Parse or format the given `val`.\n *\n * Options:\n *\n * - `long` verbose formatting [false]\n *\n * @param {String|Number} val\n * @param {Object} [options]\n * @throws {Error} throw an error if val is not a non-empty string or a number\n * @return {String|Number}\n * @api public\n */\n\nmodule.exports = function (val, options) {\n options = options || {};\n var type = typeof val;\n if (type === 'string' && val.length > 0) {\n return parse(val);\n } else if (type === 'number' && isFinite(val)) {\n return options.long ? fmtLong(val) : fmtShort(val);\n }\n throw new Error(\n 'val is not a non-empty string or a valid number. val=' +\n JSON.stringify(val)\n );\n};\n\n/**\n * Parse the given `str` and return milliseconds.\n *\n * @param {String} str\n * @return {Number}\n * @api private\n */\n\nfunction parse(str) {\n str = String(str);\n if (str.length > 100) {\n return;\n }\n var match = /^(-?(?:\\d+)?\\.?\\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|weeks?|w|years?|yrs?|y)?$/i.exec(\n str\n );\n if (!match) {\n return;\n }\n var n = parseFloat(match[1]);\n var type = (match[2] || 'ms').toLowerCase();\n switch (type) {\n case 'years':\n case 'year':\n case 'yrs':\n case 'yr':\n case 'y':\n return n * y;\n case 'weeks':\n case 'week':\n case 'w':\n return n * w;\n case 'days':\n case 'day':\n case 'd':\n return n * d;\n case 'hours':\n case 'hour':\n case 'hrs':\n case 'hr':\n case 'h':\n return n * h;\n case 'minutes':\n case 'minute':\n case 'mins':\n case 'min':\n case 'm':\n return n * m;\n case 'seconds':\n case 'second':\n case 'secs':\n case 'sec':\n case 's':\n return n * s;\n case 'milliseconds':\n case 'millisecond':\n case 'msecs':\n case 'msec':\n case 'ms':\n return n;\n default:\n return undefined;\n }\n}\n\n/**\n * Short format for `ms`.\n *\n * @param {Number} ms\n * @return {String}\n * @api private\n */\n\nfunction fmtShort(ms) {\n var msAbs = Math.abs(ms);\n if (msAbs >= d) {\n return Math.round(ms / d) + 'd';\n }\n if (msAbs >= h) {\n return Math.round(ms / h) + 'h';\n }\n if (msAbs >= m) {\n return Math.round(ms / m) + 'm';\n }\n if (msAbs >= s) {\n return Math.round(ms / s) + 's';\n }\n return ms + 'ms';\n}\n\n/**\n * Long format for `ms`.\n *\n * @param {Number} ms\n * @return {String}\n * @api private\n */\n\nfunction fmtLong(ms) {\n var msAbs = Math.abs(ms);\n if (msAbs >= d) {\n return plural(ms, msAbs, d, 'day');\n }\n if (msAbs >= h) {\n return plural(ms, msAbs, h, 'hour');\n }\n if (msAbs >= m) {\n return plural(ms, msAbs, m, 'minute');\n }\n if (msAbs >= s) {\n return plural(ms, msAbs, s, 'second');\n }\n return ms + ' ms';\n}\n\n/**\n * Pluralization helper.\n */\n\nfunction plural(ms, msAbs, n, name) {\n var isPlural = msAbs >= n * 1.5;\n return Math.round(ms / n) + ' ' + name + (isPlural ? 's' : '');\n}\n","/*!\n * range-parser\n * Copyright(c) 2012-2014 TJ Holowaychuk\n * Copyright(c) 2015-2016 Douglas Christopher Wilson\n * MIT Licensed\n */\n\n'use strict'\n\n/**\n * Module exports.\n * @public\n */\n\nmodule.exports = rangeParser\n\n/**\n * Parse \"Range\" header `str` relative to the given file `size`.\n *\n * @param {Number} size\n * @param {String} str\n * @param {Object} [options]\n * @return {Array}\n * @public\n */\n\nfunction rangeParser (size, str, options) {\n if (typeof str !== 'string') {\n throw new TypeError('argument str must be a string')\n }\n\n var index = str.indexOf('=')\n\n if (index === -1) {\n return -2\n }\n\n // split the range string\n var arr = str.slice(index + 1).split(',')\n var ranges = []\n\n // add ranges type\n ranges.type = str.slice(0, index)\n\n // parse all ranges\n for (var i = 0; i < arr.length; i++) {\n var range = arr[i].split('-')\n var start = parseInt(range[0], 10)\n var end = parseInt(range[1], 10)\n\n // -nnn\n if (isNaN(start)) {\n start = size - end\n end = size - 1\n // nnn-\n } else if (isNaN(end)) {\n end = size - 1\n }\n\n // limit last-byte-pos to current length\n if (end > size - 1) {\n end = size - 1\n }\n\n // invalid or unsatisifiable\n if (isNaN(start) || isNaN(end) || start > end || start < 0) {\n continue\n }\n\n // add range\n ranges.push({\n start: start,\n end: end\n })\n }\n\n if (ranges.length < 1) {\n // unsatisifiable\n return -1\n }\n\n return options && options.combine\n ? combineRanges(ranges)\n : ranges\n}\n\n/**\n * Combine overlapping & adjacent ranges.\n * @private\n */\n\nfunction combineRanges (ranges) {\n var ordered = ranges.map(mapWithIndex).sort(sortByRangeStart)\n\n for (var j = 0, i = 1; i < ordered.length; i++) {\n var range = ordered[i]\n var current = ordered[j]\n\n if (range.start > current.end + 1) {\n // next range\n ordered[++j] = range\n } else if (range.end > current.end) {\n // extend range\n current.end = range.end\n current.index = Math.min(current.index, range.index)\n }\n }\n\n // trim ordered array\n ordered.length = j + 1\n\n // generate combined range\n var combined = ordered.sort(sortByRangeIndex).map(mapWithoutIndex)\n\n // copy ranges type\n combined.type = ranges.type\n\n return combined\n}\n\n/**\n * Map function to add index value to ranges.\n * @private\n */\n\nfunction mapWithIndex (range, index) {\n return {\n start: range.start,\n end: range.end,\n index: index\n }\n}\n\n/**\n * Map function to remove index value from ranges.\n * @private\n */\n\nfunction mapWithoutIndex (range) {\n return {\n start: range.start,\n end: range.end\n }\n}\n\n/**\n * Sort function to sort ranges by index.\n * @private\n */\n\nfunction sortByRangeIndex (a, b) {\n return a.index - b.index\n}\n\n/**\n * Sort function to sort ranges by start position.\n * @private\n */\n\nfunction sortByRangeStart (a, b) {\n return a.start - b.start\n}\n","/*!\n * send\n * Copyright(c) 2012 TJ Holowaychuk\n * Copyright(c) 2014-2022 Douglas Christopher Wilson\n * MIT Licensed\n */\n\n'use strict'\n\n/**\n * Module dependencies.\n * @private\n */\n\nvar createError = require('http-errors')\nvar debug = require('debug')('send')\nvar deprecate = require('depd')('send')\nvar destroy = require('destroy')\nvar encodeUrl = require('encodeurl')\nvar escapeHtml = require('escape-html')\nvar etag = require('etag')\nvar fresh = require('fresh')\nvar fs = require('fs')\nvar mime = require('mime')\nvar ms = require('ms')\nvar onFinished = require('on-finished')\nvar parseRange = require('range-parser')\nvar path = require('path')\nvar statuses = require('statuses')\nvar Stream = require('stream')\nvar util = require('util')\n\n/**\n * Path function references.\n * @private\n */\n\nvar extname = path.extname\nvar join = path.join\nvar normalize = path.normalize\nvar resolve = path.resolve\nvar sep = path.sep\n\n/**\n * Regular expression for identifying a bytes Range header.\n * @private\n */\n\nvar BYTES_RANGE_REGEXP = /^ *bytes=/\n\n/**\n * Maximum value allowed for the max age.\n * @private\n */\n\nvar MAX_MAXAGE = 60 * 60 * 24 * 365 * 1000 // 1 year\n\n/**\n * Regular expression to match a path with a directory up component.\n * @private\n */\n\nvar UP_PATH_REGEXP = /(?:^|[\\\\/])\\.\\.(?:[\\\\/]|$)/\n\n/**\n * Module exports.\n * @public\n */\n\nmodule.exports = send\nmodule.exports.mime = mime\n\n/**\n * Return a `SendStream` for `req` and `path`.\n *\n * @param {object} req\n * @param {string} path\n * @param {object} [options]\n * @return {SendStream}\n * @public\n */\n\nfunction send (req, path, options) {\n return new SendStream(req, path, options)\n}\n\n/**\n * Initialize a `SendStream` with the given `path`.\n *\n * @param {Request} req\n * @param {String} path\n * @param {object} [options]\n * @private\n */\n\nfunction SendStream (req, path, options) {\n Stream.call(this)\n\n var opts = options || {}\n\n this.options = opts\n this.path = path\n this.req = req\n\n this._acceptRanges = opts.acceptRanges !== undefined\n ? Boolean(opts.acceptRanges)\n : true\n\n this._cacheControl = opts.cacheControl !== undefined\n ? Boolean(opts.cacheControl)\n : true\n\n this._etag = opts.etag !== undefined\n ? Boolean(opts.etag)\n : true\n\n this._dotfiles = opts.dotfiles !== undefined\n ? opts.dotfiles\n : 'ignore'\n\n if (this._dotfiles !== 'ignore' && this._dotfiles !== 'allow' && this._dotfiles !== 'deny') {\n throw new TypeError('dotfiles option must be \"allow\", \"deny\", or \"ignore\"')\n }\n\n this._hidden = Boolean(opts.hidden)\n\n if (opts.hidden !== undefined) {\n deprecate('hidden: use dotfiles: \\'' + (this._hidden ? 'allow' : 'ignore') + '\\' instead')\n }\n\n // legacy support\n if (opts.dotfiles === undefined) {\n this._dotfiles = undefined\n }\n\n this._extensions = opts.extensions !== undefined\n ? normalizeList(opts.extensions, 'extensions option')\n : []\n\n this._immutable = opts.immutable !== undefined\n ? Boolean(opts.immutable)\n : false\n\n this._index = opts.index !== undefined\n ? normalizeList(opts.index, 'index option')\n : ['index.html']\n\n this._lastModified = opts.lastModified !== undefined\n ? Boolean(opts.lastModified)\n : true\n\n this._maxage = opts.maxAge || opts.maxage\n this._maxage = typeof this._maxage === 'string'\n ? ms(this._maxage)\n : Number(this._maxage)\n this._maxage = !isNaN(this._maxage)\n ? Math.min(Math.max(0, this._maxage), MAX_MAXAGE)\n : 0\n\n this._root = opts.root\n ? resolve(opts.root)\n : null\n\n if (!this._root && opts.from) {\n this.from(opts.from)\n }\n}\n\n/**\n * Inherits from `Stream`.\n */\n\nutil.inherits(SendStream, Stream)\n\n/**\n * Enable or disable etag generation.\n *\n * @param {Boolean} val\n * @return {SendStream}\n * @api public\n */\n\nSendStream.prototype.etag = deprecate.function(function etag (val) {\n this._etag = Boolean(val)\n debug('etag %s', this._etag)\n return this\n}, 'send.etag: pass etag as option')\n\n/**\n * Enable or disable \"hidden\" (dot) files.\n *\n * @param {Boolean} path\n * @return {SendStream}\n * @api public\n */\n\nSendStream.prototype.hidden = deprecate.function(function hidden (val) {\n this._hidden = Boolean(val)\n this._dotfiles = undefined\n debug('hidden %s', this._hidden)\n return this\n}, 'send.hidden: use dotfiles option')\n\n/**\n * Set index `paths`, set to a falsy\n * value to disable index support.\n *\n * @param {String|Boolean|Array} paths\n * @return {SendStream}\n * @api public\n */\n\nSendStream.prototype.index = deprecate.function(function index (paths) {\n var index = !paths ? [] : normalizeList(paths, 'paths argument')\n debug('index %o', paths)\n this._index = index\n return this\n}, 'send.index: pass index as option')\n\n/**\n * Set root `path`.\n *\n * @param {String} path\n * @return {SendStream}\n * @api public\n */\n\nSendStream.prototype.root = function root (path) {\n this._root = resolve(String(path))\n debug('root %s', this._root)\n return this\n}\n\nSendStream.prototype.from = deprecate.function(SendStream.prototype.root,\n 'send.from: pass root as option')\n\nSendStream.prototype.root = deprecate.function(SendStream.prototype.root,\n 'send.root: pass root as option')\n\n/**\n * Set max-age to `maxAge`.\n *\n * @param {Number} maxAge\n * @return {SendStream}\n * @api public\n */\n\nSendStream.prototype.maxage = deprecate.function(function maxage (maxAge) {\n this._maxage = typeof maxAge === 'string'\n ? ms(maxAge)\n : Number(maxAge)\n this._maxage = !isNaN(this._maxage)\n ? Math.min(Math.max(0, this._maxage), MAX_MAXAGE)\n : 0\n debug('max-age %d', this._maxage)\n return this\n}, 'send.maxage: pass maxAge as option')\n\n/**\n * Emit error with `status`.\n *\n * @param {number} status\n * @param {Error} [err]\n * @private\n */\n\nSendStream.prototype.error = function error (status, err) {\n // emit if listeners instead of responding\n if (hasListeners(this, 'error')) {\n return this.emit('error', createHttpError(status, err))\n }\n\n var res = this.res\n var msg = statuses.message[status] || String(status)\n var doc = createHtmlDocument('Error', escapeHtml(msg))\n\n // clear existing headers\n clearHeaders(res)\n\n // add error headers\n if (err && err.headers) {\n setHeaders(res, err.headers)\n }\n\n // send basic response\n res.statusCode = status\n res.setHeader('Content-Type', 'text/html; charset=UTF-8')\n res.setHeader('Content-Length', Buffer.byteLength(doc))\n res.setHeader('Content-Security-Policy', \"default-src 'none'\")\n res.setHeader('X-Content-Type-Options', 'nosniff')\n res.end(doc)\n}\n\n/**\n * Check if the pathname ends with \"/\".\n *\n * @return {boolean}\n * @private\n */\n\nSendStream.prototype.hasTrailingSlash = function hasTrailingSlash () {\n return this.path[this.path.length - 1] === '/'\n}\n\n/**\n * Check if this is a conditional GET request.\n *\n * @return {Boolean}\n * @api private\n */\n\nSendStream.prototype.isConditionalGET = function isConditionalGET () {\n return this.req.headers['if-match'] ||\n this.req.headers['if-unmodified-since'] ||\n this.req.headers['if-none-match'] ||\n this.req.headers['if-modified-since']\n}\n\n/**\n * Check if the request preconditions failed.\n *\n * @return {boolean}\n * @private\n */\n\nSendStream.prototype.isPreconditionFailure = function isPreconditionFailure () {\n var req = this.req\n var res = this.res\n\n // if-match\n var match = req.headers['if-match']\n if (match) {\n var etag = res.getHeader('ETag')\n return !etag || (match !== '*' && parseTokenList(match).every(function (match) {\n return match !== etag && match !== 'W/' + etag && 'W/' + match !== etag\n }))\n }\n\n // if-unmodified-since\n var unmodifiedSince = parseHttpDate(req.headers['if-unmodified-since'])\n if (!isNaN(unmodifiedSince)) {\n var lastModified = parseHttpDate(res.getHeader('Last-Modified'))\n return isNaN(lastModified) || lastModified > unmodifiedSince\n }\n\n return false\n}\n\n/**\n * Strip various content header fields for a change in entity.\n *\n * @private\n */\n\nSendStream.prototype.removeContentHeaderFields = function removeContentHeaderFields () {\n var res = this.res\n\n res.removeHeader('Content-Encoding')\n res.removeHeader('Content-Language')\n res.removeHeader('Content-Length')\n res.removeHeader('Content-Range')\n res.removeHeader('Content-Type')\n}\n\n/**\n * Respond with 304 not modified.\n *\n * @api private\n */\n\nSendStream.prototype.notModified = function notModified () {\n var res = this.res\n debug('not modified')\n this.removeContentHeaderFields()\n res.statusCode = 304\n res.end()\n}\n\n/**\n * Raise error that headers already sent.\n *\n * @api private\n */\n\nSendStream.prototype.headersAlreadySent = function headersAlreadySent () {\n var err = new Error('Can\\'t set headers after they are sent.')\n debug('headers already sent')\n this.error(500, err)\n}\n\n/**\n * Check if the request is cacheable, aka\n * responded with 2xx or 304 (see RFC 2616 section 14.2{5,6}).\n *\n * @return {Boolean}\n * @api private\n */\n\nSendStream.prototype.isCachable = function isCachable () {\n var statusCode = this.res.statusCode\n return (statusCode >= 200 && statusCode < 300) ||\n statusCode === 304\n}\n\n/**\n * Handle stat() error.\n *\n * @param {Error} error\n * @private\n */\n\nSendStream.prototype.onStatError = function onStatError (error) {\n switch (error.code) {\n case 'ENAMETOOLONG':\n case 'ENOENT':\n case 'ENOTDIR':\n this.error(404, error)\n break\n default:\n this.error(500, error)\n break\n }\n}\n\n/**\n * Check if the cache is fresh.\n *\n * @return {Boolean}\n * @api private\n */\n\nSendStream.prototype.isFresh = function isFresh () {\n return fresh(this.req.headers, {\n etag: this.res.getHeader('ETag'),\n 'last-modified': this.res.getHeader('Last-Modified')\n })\n}\n\n/**\n * Check if the range is fresh.\n *\n * @return {Boolean}\n * @api private\n */\n\nSendStream.prototype.isRangeFresh = function isRangeFresh () {\n var ifRange = this.req.headers['if-range']\n\n if (!ifRange) {\n return true\n }\n\n // if-range as etag\n if (ifRange.indexOf('\"') !== -1) {\n var etag = this.res.getHeader('ETag')\n return Boolean(etag && ifRange.indexOf(etag) !== -1)\n }\n\n // if-range as modified date\n var lastModified = this.res.getHeader('Last-Modified')\n return parseHttpDate(lastModified) <= parseHttpDate(ifRange)\n}\n\n/**\n * Redirect to path.\n *\n * @param {string} path\n * @private\n */\n\nSendStream.prototype.redirect = function redirect (path) {\n var res = this.res\n\n if (hasListeners(this, 'directory')) {\n this.emit('directory', res, path)\n return\n }\n\n if (this.hasTrailingSlash()) {\n this.error(403)\n return\n }\n\n var loc = encodeUrl(collapseLeadingSlashes(this.path + '/'))\n var doc = createHtmlDocument('Redirecting', 'Redirecting to ' + escapeHtml(loc))\n\n // redirect\n res.statusCode = 301\n res.setHeader('Content-Type', 'text/html; charset=UTF-8')\n res.setHeader('Content-Length', Buffer.byteLength(doc))\n res.setHeader('Content-Security-Policy', \"default-src 'none'\")\n res.setHeader('X-Content-Type-Options', 'nosniff')\n res.setHeader('Location', loc)\n res.end(doc)\n}\n\n/**\n * Pipe to `res.\n *\n * @param {Stream} res\n * @return {Stream} res\n * @api public\n */\n\nSendStream.prototype.pipe = function pipe (res) {\n // root path\n var root = this._root\n\n // references\n this.res = res\n\n // decode the path\n var path = decode(this.path)\n if (path === -1) {\n this.error(400)\n return res\n }\n\n // null byte(s)\n if (~path.indexOf('\\0')) {\n this.error(400)\n return res\n }\n\n var parts\n if (root !== null) {\n // normalize\n if (path) {\n path = normalize('.' + sep + path)\n }\n\n // malicious path\n if (UP_PATH_REGEXP.test(path)) {\n debug('malicious path \"%s\"', path)\n this.error(403)\n return res\n }\n\n // explode path parts\n parts = path.split(sep)\n\n // join / normalize from optional root dir\n path = normalize(join(root, path))\n } else {\n // \"..\" is malicious without \"root\"\n if (UP_PATH_REGEXP.test(path)) {\n debug('malicious path \"%s\"', path)\n this.error(403)\n return res\n }\n\n // explode path parts\n parts = normalize(path).split(sep)\n\n // resolve the path\n path = resolve(path)\n }\n\n // dotfile handling\n if (containsDotFile(parts)) {\n var access = this._dotfiles\n\n // legacy support\n if (access === undefined) {\n access = parts[parts.length - 1][0] === '.'\n ? (this._hidden ? 'allow' : 'ignore')\n : 'allow'\n }\n\n debug('%s dotfile \"%s\"', access, path)\n switch (access) {\n case 'allow':\n break\n case 'deny':\n this.error(403)\n return res\n case 'ignore':\n default:\n this.error(404)\n return res\n }\n }\n\n // index file support\n if (this._index.length && this.hasTrailingSlash()) {\n this.sendIndex(path)\n return res\n }\n\n this.sendFile(path)\n return res\n}\n\n/**\n * Transfer `path`.\n *\n * @param {String} path\n * @api public\n */\n\nSendStream.prototype.send = function send (path, stat) {\n var len = stat.size\n var options = this.options\n var opts = {}\n var res = this.res\n var req = this.req\n var ranges = req.headers.range\n var offset = options.start || 0\n\n if (headersSent(res)) {\n // impossible to send now\n this.headersAlreadySent()\n return\n }\n\n debug('pipe \"%s\"', path)\n\n // set header fields\n this.setHeader(path, stat)\n\n // set content-type\n this.type(path)\n\n // conditional GET support\n if (this.isConditionalGET()) {\n if (this.isPreconditionFailure()) {\n this.error(412)\n return\n }\n\n if (this.isCachable() && this.isFresh()) {\n this.notModified()\n return\n }\n }\n\n // adjust len to start/end options\n len = Math.max(0, len - offset)\n if (options.end !== undefined) {\n var bytes = options.end - offset + 1\n if (len > bytes) len = bytes\n }\n\n // Range support\n if (this._acceptRanges && BYTES_RANGE_REGEXP.test(ranges)) {\n // parse\n ranges = parseRange(len, ranges, {\n combine: true\n })\n\n // If-Range support\n if (!this.isRangeFresh()) {\n debug('range stale')\n ranges = -2\n }\n\n // unsatisfiable\n if (ranges === -1) {\n debug('range unsatisfiable')\n\n // Content-Range\n res.setHeader('Content-Range', contentRange('bytes', len))\n\n // 416 Requested Range Not Satisfiable\n return this.error(416, {\n headers: { 'Content-Range': res.getHeader('Content-Range') }\n })\n }\n\n // valid (syntactically invalid/multiple ranges are treated as a regular response)\n if (ranges !== -2 && ranges.length === 1) {\n debug('range %j', ranges)\n\n // Content-Range\n res.statusCode = 206\n res.setHeader('Content-Range', contentRange('bytes', len, ranges[0]))\n\n // adjust for requested range\n offset += ranges[0].start\n len = ranges[0].end - ranges[0].start + 1\n }\n }\n\n // clone options\n for (var prop in options) {\n opts[prop] = options[prop]\n }\n\n // set read options\n opts.start = offset\n opts.end = Math.max(offset, offset + len - 1)\n\n // content-length\n res.setHeader('Content-Length', len)\n\n // HEAD support\n if (req.method === 'HEAD') {\n res.end()\n return\n }\n\n this.stream(path, opts)\n}\n\n/**\n * Transfer file for `path`.\n *\n * @param {String} path\n * @api private\n */\nSendStream.prototype.sendFile = function sendFile (path) {\n var i = 0\n var self = this\n\n debug('stat \"%s\"', path)\n fs.stat(path, function onstat (err, stat) {\n if (err && err.code === 'ENOENT' && !extname(path) && path[path.length - 1] !== sep) {\n // not found, check extensions\n return next(err)\n }\n if (err) return self.onStatError(err)\n if (stat.isDirectory()) return self.redirect(path)\n self.emit('file', path, stat)\n self.send(path, stat)\n })\n\n function next (err) {\n if (self._extensions.length <= i) {\n return err\n ? self.onStatError(err)\n : self.error(404)\n }\n\n var p = path + '.' + self._extensions[i++]\n\n debug('stat \"%s\"', p)\n fs.stat(p, function (err, stat) {\n if (err) return next(err)\n if (stat.isDirectory()) return next()\n self.emit('file', p, stat)\n self.send(p, stat)\n })\n }\n}\n\n/**\n * Transfer index for `path`.\n *\n * @param {String} path\n * @api private\n */\nSendStream.prototype.sendIndex = function sendIndex (path) {\n var i = -1\n var self = this\n\n function next (err) {\n if (++i >= self._index.length) {\n if (err) return self.onStatError(err)\n return self.error(404)\n }\n\n var p = join(path, self._index[i])\n\n debug('stat \"%s\"', p)\n fs.stat(p, function (err, stat) {\n if (err) return next(err)\n if (stat.isDirectory()) return next()\n self.emit('file', p, stat)\n self.send(p, stat)\n })\n }\n\n next()\n}\n\n/**\n * Stream `path` to the response.\n *\n * @param {String} path\n * @param {Object} options\n * @api private\n */\n\nSendStream.prototype.stream = function stream (path, options) {\n var self = this\n var res = this.res\n\n // pipe\n var stream = fs.createReadStream(path, options)\n this.emit('stream', stream)\n stream.pipe(res)\n\n // cleanup\n function cleanup () {\n destroy(stream, true)\n }\n\n // response finished, cleanup\n onFinished(res, cleanup)\n\n // error handling\n stream.on('error', function onerror (err) {\n // clean up stream early\n cleanup()\n\n // error\n self.onStatError(err)\n })\n\n // end\n stream.on('end', function onend () {\n self.emit('end')\n })\n}\n\n/**\n * Set content-type based on `path`\n * if it hasn't been explicitly set.\n *\n * @param {String} path\n * @api private\n */\n\nSendStream.prototype.type = function type (path) {\n var res = this.res\n\n if (res.getHeader('Content-Type')) return\n\n var type = mime.lookup(path)\n\n if (!type) {\n debug('no content-type')\n return\n }\n\n var charset = mime.charsets.lookup(type)\n\n debug('content-type %s', type)\n res.setHeader('Content-Type', type + (charset ? '; charset=' + charset : ''))\n}\n\n/**\n * Set response header fields, most\n * fields may be pre-defined.\n *\n * @param {String} path\n * @param {Object} stat\n * @api private\n */\n\nSendStream.prototype.setHeader = function setHeader (path, stat) {\n var res = this.res\n\n this.emit('headers', res, path, stat)\n\n if (this._acceptRanges && !res.getHeader('Accept-Ranges')) {\n debug('accept ranges')\n res.setHeader('Accept-Ranges', 'bytes')\n }\n\n if (this._cacheControl && !res.getHeader('Cache-Control')) {\n var cacheControl = 'public, max-age=' + Math.floor(this._maxage / 1000)\n\n if (this._immutable) {\n cacheControl += ', immutable'\n }\n\n debug('cache-control %s', cacheControl)\n res.setHeader('Cache-Control', cacheControl)\n }\n\n if (this._lastModified && !res.getHeader('Last-Modified')) {\n var modified = stat.mtime.toUTCString()\n debug('modified %s', modified)\n res.setHeader('Last-Modified', modified)\n }\n\n if (this._etag && !res.getHeader('ETag')) {\n var val = etag(stat)\n debug('etag %s', val)\n res.setHeader('ETag', val)\n }\n}\n\n/**\n * Clear all headers from a response.\n *\n * @param {object} res\n * @private\n */\n\nfunction clearHeaders (res) {\n var headers = getHeaderNames(res)\n\n for (var i = 0; i < headers.length; i++) {\n res.removeHeader(headers[i])\n }\n}\n\n/**\n * Collapse all leading slashes into a single slash\n *\n * @param {string} str\n * @private\n */\nfunction collapseLeadingSlashes (str) {\n for (var i = 0; i < str.length; i++) {\n if (str[i] !== '/') {\n break\n }\n }\n\n return i > 1\n ? '/' + str.substr(i)\n : str\n}\n\n/**\n * Determine if path parts contain a dotfile.\n *\n * @api private\n */\n\nfunction containsDotFile (parts) {\n for (var i = 0; i < parts.length; i++) {\n var part = parts[i]\n if (part.length > 1 && part[0] === '.') {\n return true\n }\n }\n\n return false\n}\n\n/**\n * Create a Content-Range header.\n *\n * @param {string} type\n * @param {number} size\n * @param {array} [range]\n */\n\nfunction contentRange (type, size, range) {\n return type + ' ' + (range ? range.start + '-' + range.end : '*') + '/' + size\n}\n\n/**\n * Create a minimal HTML document.\n *\n * @param {string} title\n * @param {string} body\n * @private\n */\n\nfunction createHtmlDocument (title, body) {\n return '\\n' +\n '\\n' +\n '\\n' +\n '\\n' +\n '' + title + '\\n' +\n '\\n' +\n '\\n' +\n '
' + body + '
\\n' +\n '\\n' +\n '\\n'\n}\n\n/**\n * Create a HttpError object from simple arguments.\n *\n * @param {number} status\n * @param {Error|object} err\n * @private\n */\n\nfunction createHttpError (status, err) {\n if (!err) {\n return createError(status)\n }\n\n return err instanceof Error\n ? createError(status, err, { expose: false })\n : createError(status, err)\n}\n\n/**\n * decodeURIComponent.\n *\n * Allows V8 to only deoptimize this fn instead of all\n * of send().\n *\n * @param {String} path\n * @api private\n */\n\nfunction decode (path) {\n try {\n return decodeURIComponent(path)\n } catch (err) {\n return -1\n }\n}\n\n/**\n * Get the header names on a respnse.\n *\n * @param {object} res\n * @returns {array[string]}\n * @private\n */\n\nfunction getHeaderNames (res) {\n return typeof res.getHeaderNames !== 'function'\n ? Object.keys(res._headers || {})\n : res.getHeaderNames()\n}\n\n/**\n * Determine if emitter has listeners of a given type.\n *\n * The way to do this check is done three different ways in Node.js >= 0.8\n * so this consolidates them into a minimal set using instance methods.\n *\n * @param {EventEmitter} emitter\n * @param {string} type\n * @returns {boolean}\n * @private\n */\n\nfunction hasListeners (emitter, type) {\n var count = typeof emitter.listenerCount !== 'function'\n ? emitter.listeners(type).length\n : emitter.listenerCount(type)\n\n return count > 0\n}\n\n/**\n * Determine if the response headers have been sent.\n *\n * @param {object} res\n * @returns {boolean}\n * @private\n */\n\nfunction headersSent (res) {\n return typeof res.headersSent !== 'boolean'\n ? Boolean(res._header)\n : res.headersSent\n}\n\n/**\n * Normalize the index option into an array.\n *\n * @param {boolean|string|array} val\n * @param {string} name\n * @private\n */\n\nfunction normalizeList (val, name) {\n var list = [].concat(val || [])\n\n for (var i = 0; i < list.length; i++) {\n if (typeof list[i] !== 'string') {\n throw new TypeError(name + ' must be array of strings or false')\n }\n }\n\n return list\n}\n\n/**\n * Parse an HTTP Date into a number.\n *\n * @param {string} date\n * @private\n */\n\nfunction parseHttpDate (date) {\n var timestamp = date && Date.parse(date)\n\n return typeof timestamp === 'number'\n ? timestamp\n : NaN\n}\n\n/**\n * Parse a HTTP token list.\n *\n * @param {string} str\n * @private\n */\n\nfunction parseTokenList (str) {\n var end = 0\n var list = []\n var start = 0\n\n // gather tokens\n for (var i = 0, len = str.length; i < len; i++) {\n switch (str.charCodeAt(i)) {\n case 0x20: /* */\n if (start === end) {\n start = end = i + 1\n }\n break\n case 0x2c: /* , */\n if (start !== end) {\n list.push(str.substring(start, end))\n }\n start = end = i + 1\n break\n default:\n end = i + 1\n break\n }\n }\n\n // final token\n if (start !== end) {\n list.push(str.substring(start, end))\n }\n\n return list\n}\n\n/**\n * Set an object of headers on a response.\n *\n * @param {object} res\n * @param {object} headers\n * @private\n */\n\nfunction setHeaders (res, headers) {\n var keys = Object.keys(headers)\n\n for (var i = 0; i < keys.length; i++) {\n var key = keys[i]\n res.setHeader(key, headers[key])\n }\n}\n","/*!\n * forwarded\n * Copyright(c) 2014-2017 Douglas Christopher Wilson\n * MIT Licensed\n */\n\n'use strict'\n\n/**\n * Module exports.\n * @public\n */\n\nmodule.exports = forwarded\n\n/**\n * Get all addresses in the request, using the `X-Forwarded-For` header.\n *\n * @param {object} req\n * @return {array}\n * @public\n */\n\nfunction forwarded (req) {\n if (!req) {\n throw new TypeError('argument req is required')\n }\n\n // simple header parsing\n var proxyAddrs = parse(req.headers['x-forwarded-for'] || '')\n var socketAddr = getSocketAddr(req)\n var addrs = [socketAddr].concat(proxyAddrs)\n\n // return all addresses\n return addrs\n}\n\n/**\n * Get the socket address for a request.\n *\n * @param {object} req\n * @return {string}\n * @private\n */\n\nfunction getSocketAddr (req) {\n return req.socket\n ? req.socket.remoteAddress\n : req.connection.remoteAddress\n}\n\n/**\n * Parse the X-Forwarded-For header.\n *\n * @param {string} header\n * @private\n */\n\nfunction parse (header) {\n var end = header.length\n var list = []\n var start = header.length\n\n // gather addresses, backwards\n for (var i = header.length - 1; i >= 0; i--) {\n switch (header.charCodeAt(i)) {\n case 0x20: /* */\n if (start === end) {\n start = end = i\n }\n break\n case 0x2c: /* , */\n if (start !== end) {\n list.push(header.substring(start, end))\n }\n start = end = i\n break\n default:\n start = i\n break\n }\n }\n\n // final address\n if (start !== end) {\n list.push(header.substring(start, end))\n }\n\n return list\n}\n","(function() {\n var expandIPv6, ipaddr, ipv4Part, ipv4Regexes, ipv6Part, ipv6Regexes, matchCIDR, root, zoneIndex;\n\n ipaddr = {};\n\n root = this;\n\n if ((typeof module !== \"undefined\" && module !== null) && module.exports) {\n module.exports = ipaddr;\n } else {\n root['ipaddr'] = ipaddr;\n }\n\n matchCIDR = function(first, second, partSize, cidrBits) {\n var part, shift;\n if (first.length !== second.length) {\n throw new Error(\"ipaddr: cannot match CIDR for objects with different lengths\");\n }\n part = 0;\n while (cidrBits > 0) {\n shift = partSize - cidrBits;\n if (shift < 0) {\n shift = 0;\n }\n if (first[part] >> shift !== second[part] >> shift) {\n return false;\n }\n cidrBits -= partSize;\n part += 1;\n }\n return true;\n };\n\n ipaddr.subnetMatch = function(address, rangeList, defaultName) {\n var k, len, rangeName, rangeSubnets, subnet;\n if (defaultName == null) {\n defaultName = 'unicast';\n }\n for (rangeName in rangeList) {\n rangeSubnets = rangeList[rangeName];\n if (rangeSubnets[0] && !(rangeSubnets[0] instanceof Array)) {\n rangeSubnets = [rangeSubnets];\n }\n for (k = 0, len = rangeSubnets.length; k < len; k++) {\n subnet = rangeSubnets[k];\n if (address.kind() === subnet[0].kind()) {\n if (address.match.apply(address, subnet)) {\n return rangeName;\n }\n }\n }\n }\n return defaultName;\n };\n\n ipaddr.IPv4 = (function() {\n function IPv4(octets) {\n var k, len, octet;\n if (octets.length !== 4) {\n throw new Error(\"ipaddr: ipv4 octet count should be 4\");\n }\n for (k = 0, len = octets.length; k < len; k++) {\n octet = octets[k];\n if (!((0 <= octet && octet <= 255))) {\n throw new Error(\"ipaddr: ipv4 octet should fit in 8 bits\");\n }\n }\n this.octets = octets;\n }\n\n IPv4.prototype.kind = function() {\n return 'ipv4';\n };\n\n IPv4.prototype.toString = function() {\n return this.octets.join(\".\");\n };\n\n IPv4.prototype.toNormalizedString = function() {\n return this.toString();\n };\n\n IPv4.prototype.toByteArray = function() {\n return this.octets.slice(0);\n };\n\n IPv4.prototype.match = function(other, cidrRange) {\n var ref;\n if (cidrRange === void 0) {\n ref = other, other = ref[0], cidrRange = ref[1];\n }\n if (other.kind() !== 'ipv4') {\n throw new Error(\"ipaddr: cannot match ipv4 address with non-ipv4 one\");\n }\n return matchCIDR(this.octets, other.octets, 8, cidrRange);\n };\n\n IPv4.prototype.SpecialRanges = {\n unspecified: [[new IPv4([0, 0, 0, 0]), 8]],\n broadcast: [[new IPv4([255, 255, 255, 255]), 32]],\n multicast: [[new IPv4([224, 0, 0, 0]), 4]],\n linkLocal: [[new IPv4([169, 254, 0, 0]), 16]],\n loopback: [[new IPv4([127, 0, 0, 0]), 8]],\n carrierGradeNat: [[new IPv4([100, 64, 0, 0]), 10]],\n \"private\": [[new IPv4([10, 0, 0, 0]), 8], [new IPv4([172, 16, 0, 0]), 12], [new IPv4([192, 168, 0, 0]), 16]],\n reserved: [[new IPv4([192, 0, 0, 0]), 24], [new IPv4([192, 0, 2, 0]), 24], [new IPv4([192, 88, 99, 0]), 24], [new IPv4([198, 51, 100, 0]), 24], [new IPv4([203, 0, 113, 0]), 24], [new IPv4([240, 0, 0, 0]), 4]]\n };\n\n IPv4.prototype.range = function() {\n return ipaddr.subnetMatch(this, this.SpecialRanges);\n };\n\n IPv4.prototype.toIPv4MappedAddress = function() {\n return ipaddr.IPv6.parse(\"::ffff:\" + (this.toString()));\n };\n\n IPv4.prototype.prefixLengthFromSubnetMask = function() {\n var cidr, i, k, octet, stop, zeros, zerotable;\n zerotable = {\n 0: 8,\n 128: 7,\n 192: 6,\n 224: 5,\n 240: 4,\n 248: 3,\n 252: 2,\n 254: 1,\n 255: 0\n };\n cidr = 0;\n stop = false;\n for (i = k = 3; k >= 0; i = k += -1) {\n octet = this.octets[i];\n if (octet in zerotable) {\n zeros = zerotable[octet];\n if (stop && zeros !== 0) {\n return null;\n }\n if (zeros !== 8) {\n stop = true;\n }\n cidr += zeros;\n } else {\n return null;\n }\n }\n return 32 - cidr;\n };\n\n return IPv4;\n\n })();\n\n ipv4Part = \"(0?\\\\d+|0x[a-f0-9]+)\";\n\n ipv4Regexes = {\n fourOctet: new RegExp(\"^\" + ipv4Part + \"\\\\.\" + ipv4Part + \"\\\\.\" + ipv4Part + \"\\\\.\" + ipv4Part + \"$\", 'i'),\n longValue: new RegExp(\"^\" + ipv4Part + \"$\", 'i')\n };\n\n ipaddr.IPv4.parser = function(string) {\n var match, parseIntAuto, part, shift, value;\n parseIntAuto = function(string) {\n if (string[0] === \"0\" && string[1] !== \"x\") {\n return parseInt(string, 8);\n } else {\n return parseInt(string);\n }\n };\n if (match = string.match(ipv4Regexes.fourOctet)) {\n return (function() {\n var k, len, ref, results;\n ref = match.slice(1, 6);\n results = [];\n for (k = 0, len = ref.length; k < len; k++) {\n part = ref[k];\n results.push(parseIntAuto(part));\n }\n return results;\n })();\n } else if (match = string.match(ipv4Regexes.longValue)) {\n value = parseIntAuto(match[1]);\n if (value > 0xffffffff || value < 0) {\n throw new Error(\"ipaddr: address outside defined range\");\n }\n return ((function() {\n var k, results;\n results = [];\n for (shift = k = 0; k <= 24; shift = k += 8) {\n results.push((value >> shift) & 0xff);\n }\n return results;\n })()).reverse();\n } else {\n return null;\n }\n };\n\n ipaddr.IPv6 = (function() {\n function IPv6(parts, zoneId) {\n var i, k, l, len, part, ref;\n if (parts.length === 16) {\n this.parts = [];\n for (i = k = 0; k <= 14; i = k += 2) {\n this.parts.push((parts[i] << 8) | parts[i + 1]);\n }\n } else if (parts.length === 8) {\n this.parts = parts;\n } else {\n throw new Error(\"ipaddr: ipv6 part count should be 8 or 16\");\n }\n ref = this.parts;\n for (l = 0, len = ref.length; l < len; l++) {\n part = ref[l];\n if (!((0 <= part && part <= 0xffff))) {\n throw new Error(\"ipaddr: ipv6 part should fit in 16 bits\");\n }\n }\n if (zoneId) {\n this.zoneId = zoneId;\n }\n }\n\n IPv6.prototype.kind = function() {\n return 'ipv6';\n };\n\n IPv6.prototype.toString = function() {\n return this.toNormalizedString().replace(/((^|:)(0(:|$))+)/, '::');\n };\n\n IPv6.prototype.toRFC5952String = function() {\n var bestMatchIndex, bestMatchLength, match, regex, string;\n regex = /((^|:)(0(:|$)){2,})/g;\n string = this.toNormalizedString();\n bestMatchIndex = 0;\n bestMatchLength = -1;\n while ((match = regex.exec(string))) {\n if (match[0].length > bestMatchLength) {\n bestMatchIndex = match.index;\n bestMatchLength = match[0].length;\n }\n }\n if (bestMatchLength < 0) {\n return string;\n }\n return string.substring(0, bestMatchIndex) + '::' + string.substring(bestMatchIndex + bestMatchLength);\n };\n\n IPv6.prototype.toByteArray = function() {\n var bytes, k, len, part, ref;\n bytes = [];\n ref = this.parts;\n for (k = 0, len = ref.length; k < len; k++) {\n part = ref[k];\n bytes.push(part >> 8);\n bytes.push(part & 0xff);\n }\n return bytes;\n };\n\n IPv6.prototype.toNormalizedString = function() {\n var addr, part, suffix;\n addr = ((function() {\n var k, len, ref, results;\n ref = this.parts;\n results = [];\n for (k = 0, len = ref.length; k < len; k++) {\n part = ref[k];\n results.push(part.toString(16));\n }\n return results;\n }).call(this)).join(\":\");\n suffix = '';\n if (this.zoneId) {\n suffix = '%' + this.zoneId;\n }\n return addr + suffix;\n };\n\n IPv6.prototype.toFixedLengthString = function() {\n var addr, part, suffix;\n addr = ((function() {\n var k, len, ref, results;\n ref = this.parts;\n results = [];\n for (k = 0, len = ref.length; k < len; k++) {\n part = ref[k];\n results.push(part.toString(16).padStart(4, '0'));\n }\n return results;\n }).call(this)).join(\":\");\n suffix = '';\n if (this.zoneId) {\n suffix = '%' + this.zoneId;\n }\n return addr + suffix;\n };\n\n IPv6.prototype.match = function(other, cidrRange) {\n var ref;\n if (cidrRange === void 0) {\n ref = other, other = ref[0], cidrRange = ref[1];\n }\n if (other.kind() !== 'ipv6') {\n throw new Error(\"ipaddr: cannot match ipv6 address with non-ipv6 one\");\n }\n return matchCIDR(this.parts, other.parts, 16, cidrRange);\n };\n\n IPv6.prototype.SpecialRanges = {\n unspecified: [new IPv6([0, 0, 0, 0, 0, 0, 0, 0]), 128],\n linkLocal: [new IPv6([0xfe80, 0, 0, 0, 0, 0, 0, 0]), 10],\n multicast: [new IPv6([0xff00, 0, 0, 0, 0, 0, 0, 0]), 8],\n loopback: [new IPv6([0, 0, 0, 0, 0, 0, 0, 1]), 128],\n uniqueLocal: [new IPv6([0xfc00, 0, 0, 0, 0, 0, 0, 0]), 7],\n ipv4Mapped: [new IPv6([0, 0, 0, 0, 0, 0xffff, 0, 0]), 96],\n rfc6145: [new IPv6([0, 0, 0, 0, 0xffff, 0, 0, 0]), 96],\n rfc6052: [new IPv6([0x64, 0xff9b, 0, 0, 0, 0, 0, 0]), 96],\n '6to4': [new IPv6([0x2002, 0, 0, 0, 0, 0, 0, 0]), 16],\n teredo: [new IPv6([0x2001, 0, 0, 0, 0, 0, 0, 0]), 32],\n reserved: [[new IPv6([0x2001, 0xdb8, 0, 0, 0, 0, 0, 0]), 32]]\n };\n\n IPv6.prototype.range = function() {\n return ipaddr.subnetMatch(this, this.SpecialRanges);\n };\n\n IPv6.prototype.isIPv4MappedAddress = function() {\n return this.range() === 'ipv4Mapped';\n };\n\n IPv6.prototype.toIPv4Address = function() {\n var high, low, ref;\n if (!this.isIPv4MappedAddress()) {\n throw new Error(\"ipaddr: trying to convert a generic ipv6 address to ipv4\");\n }\n ref = this.parts.slice(-2), high = ref[0], low = ref[1];\n return new ipaddr.IPv4([high >> 8, high & 0xff, low >> 8, low & 0xff]);\n };\n\n IPv6.prototype.prefixLengthFromSubnetMask = function() {\n var cidr, i, k, part, stop, zeros, zerotable;\n zerotable = {\n 0: 16,\n 32768: 15,\n 49152: 14,\n 57344: 13,\n 61440: 12,\n 63488: 11,\n 64512: 10,\n 65024: 9,\n 65280: 8,\n 65408: 7,\n 65472: 6,\n 65504: 5,\n 65520: 4,\n 65528: 3,\n 65532: 2,\n 65534: 1,\n 65535: 0\n };\n cidr = 0;\n stop = false;\n for (i = k = 7; k >= 0; i = k += -1) {\n part = this.parts[i];\n if (part in zerotable) {\n zeros = zerotable[part];\n if (stop && zeros !== 0) {\n return null;\n }\n if (zeros !== 16) {\n stop = true;\n }\n cidr += zeros;\n } else {\n return null;\n }\n }\n return 128 - cidr;\n };\n\n return IPv6;\n\n })();\n\n ipv6Part = \"(?:[0-9a-f]+::?)+\";\n\n zoneIndex = \"%[0-9a-z]{1,}\";\n\n ipv6Regexes = {\n zoneIndex: new RegExp(zoneIndex, 'i'),\n \"native\": new RegExp(\"^(::)?(\" + ipv6Part + \")?([0-9a-f]+)?(::)?(\" + zoneIndex + \")?$\", 'i'),\n transitional: new RegExp((\"^((?:\" + ipv6Part + \")|(?:::)(?:\" + ipv6Part + \")?)\") + (ipv4Part + \"\\\\.\" + ipv4Part + \"\\\\.\" + ipv4Part + \"\\\\.\" + ipv4Part) + (\"(\" + zoneIndex + \")?$\"), 'i')\n };\n\n expandIPv6 = function(string, parts) {\n var colonCount, lastColon, part, replacement, replacementCount, zoneId;\n if (string.indexOf('::') !== string.lastIndexOf('::')) {\n return null;\n }\n zoneId = (string.match(ipv6Regexes['zoneIndex']) || [])[0];\n if (zoneId) {\n zoneId = zoneId.substring(1);\n string = string.replace(/%.+$/, '');\n }\n colonCount = 0;\n lastColon = -1;\n while ((lastColon = string.indexOf(':', lastColon + 1)) >= 0) {\n colonCount++;\n }\n if (string.substr(0, 2) === '::') {\n colonCount--;\n }\n if (string.substr(-2, 2) === '::') {\n colonCount--;\n }\n if (colonCount > parts) {\n return null;\n }\n replacementCount = parts - colonCount;\n replacement = ':';\n while (replacementCount--) {\n replacement += '0:';\n }\n string = string.replace('::', replacement);\n if (string[0] === ':') {\n string = string.slice(1);\n }\n if (string[string.length - 1] === ':') {\n string = string.slice(0, -1);\n }\n parts = (function() {\n var k, len, ref, results;\n ref = string.split(\":\");\n results = [];\n for (k = 0, len = ref.length; k < len; k++) {\n part = ref[k];\n results.push(parseInt(part, 16));\n }\n return results;\n })();\n return {\n parts: parts,\n zoneId: zoneId\n };\n };\n\n ipaddr.IPv6.parser = function(string) {\n var addr, k, len, match, octet, octets, zoneId;\n if (ipv6Regexes['native'].test(string)) {\n return expandIPv6(string, 8);\n } else if (match = string.match(ipv6Regexes['transitional'])) {\n zoneId = match[6] || '';\n addr = expandIPv6(match[1].slice(0, -1) + zoneId, 6);\n if (addr.parts) {\n octets = [parseInt(match[2]), parseInt(match[3]), parseInt(match[4]), parseInt(match[5])];\n for (k = 0, len = octets.length; k < len; k++) {\n octet = octets[k];\n if (!((0 <= octet && octet <= 255))) {\n return null;\n }\n }\n addr.parts.push(octets[0] << 8 | octets[1]);\n addr.parts.push(octets[2] << 8 | octets[3]);\n return {\n parts: addr.parts,\n zoneId: addr.zoneId\n };\n }\n }\n return null;\n };\n\n ipaddr.IPv4.isIPv4 = ipaddr.IPv6.isIPv6 = function(string) {\n return this.parser(string) !== null;\n };\n\n ipaddr.IPv4.isValid = function(string) {\n var e;\n try {\n new this(this.parser(string));\n return true;\n } catch (error1) {\n e = error1;\n return false;\n }\n };\n\n ipaddr.IPv4.isValidFourPartDecimal = function(string) {\n if (ipaddr.IPv4.isValid(string) && string.match(/^(0|[1-9]\\d*)(\\.(0|[1-9]\\d*)){3}$/)) {\n return true;\n } else {\n return false;\n }\n };\n\n ipaddr.IPv6.isValid = function(string) {\n var addr, e;\n if (typeof string === \"string\" && string.indexOf(\":\") === -1) {\n return false;\n }\n try {\n addr = this.parser(string);\n new this(addr.parts, addr.zoneId);\n return true;\n } catch (error1) {\n e = error1;\n return false;\n }\n };\n\n ipaddr.IPv4.parse = function(string) {\n var parts;\n parts = this.parser(string);\n if (parts === null) {\n throw new Error(\"ipaddr: string is not formatted like ip address\");\n }\n return new this(parts);\n };\n\n ipaddr.IPv6.parse = function(string) {\n var addr;\n addr = this.parser(string);\n if (addr.parts === null) {\n throw new Error(\"ipaddr: string is not formatted like ip address\");\n }\n return new this(addr.parts, addr.zoneId);\n };\n\n ipaddr.IPv4.parseCIDR = function(string) {\n var maskLength, match, parsed;\n if (match = string.match(/^(.+)\\/(\\d+)$/)) {\n maskLength = parseInt(match[2]);\n if (maskLength >= 0 && maskLength <= 32) {\n parsed = [this.parse(match[1]), maskLength];\n Object.defineProperty(parsed, 'toString', {\n value: function() {\n return this.join('/');\n }\n });\n return parsed;\n }\n }\n throw new Error(\"ipaddr: string is not formatted like an IPv4 CIDR range\");\n };\n\n ipaddr.IPv4.subnetMaskFromPrefixLength = function(prefix) {\n var filledOctetCount, j, octets;\n prefix = parseInt(prefix);\n if (prefix < 0 || prefix > 32) {\n throw new Error('ipaddr: invalid IPv4 prefix length');\n }\n octets = [0, 0, 0, 0];\n j = 0;\n filledOctetCount = Math.floor(prefix / 8);\n while (j < filledOctetCount) {\n octets[j] = 255;\n j++;\n }\n if (filledOctetCount < 4) {\n octets[filledOctetCount] = Math.pow(2, prefix % 8) - 1 << 8 - (prefix % 8);\n }\n return new this(octets);\n };\n\n ipaddr.IPv4.broadcastAddressFromCIDR = function(string) {\n var cidr, error, i, ipInterfaceOctets, octets, subnetMaskOctets;\n try {\n cidr = this.parseCIDR(string);\n ipInterfaceOctets = cidr[0].toByteArray();\n subnetMaskOctets = this.subnetMaskFromPrefixLength(cidr[1]).toByteArray();\n octets = [];\n i = 0;\n while (i < 4) {\n octets.push(parseInt(ipInterfaceOctets[i], 10) | parseInt(subnetMaskOctets[i], 10) ^ 255);\n i++;\n }\n return new this(octets);\n } catch (error1) {\n error = error1;\n throw new Error('ipaddr: the address does not have IPv4 CIDR format');\n }\n };\n\n ipaddr.IPv4.networkAddressFromCIDR = function(string) {\n var cidr, error, i, ipInterfaceOctets, octets, subnetMaskOctets;\n try {\n cidr = this.parseCIDR(string);\n ipInterfaceOctets = cidr[0].toByteArray();\n subnetMaskOctets = this.subnetMaskFromPrefixLength(cidr[1]).toByteArray();\n octets = [];\n i = 0;\n while (i < 4) {\n octets.push(parseInt(ipInterfaceOctets[i], 10) & parseInt(subnetMaskOctets[i], 10));\n i++;\n }\n return new this(octets);\n } catch (error1) {\n error = error1;\n throw new Error('ipaddr: the address does not have IPv4 CIDR format');\n }\n };\n\n ipaddr.IPv6.parseCIDR = function(string) {\n var maskLength, match, parsed;\n if (match = string.match(/^(.+)\\/(\\d+)$/)) {\n maskLength = parseInt(match[2]);\n if (maskLength >= 0 && maskLength <= 128) {\n parsed = [this.parse(match[1]), maskLength];\n Object.defineProperty(parsed, 'toString', {\n value: function() {\n return this.join('/');\n }\n });\n return parsed;\n }\n }\n throw new Error(\"ipaddr: string is not formatted like an IPv6 CIDR range\");\n };\n\n ipaddr.isValid = function(string) {\n return ipaddr.IPv6.isValid(string) || ipaddr.IPv4.isValid(string);\n };\n\n ipaddr.parse = function(string) {\n if (ipaddr.IPv6.isValid(string)) {\n return ipaddr.IPv6.parse(string);\n } else if (ipaddr.IPv4.isValid(string)) {\n return ipaddr.IPv4.parse(string);\n } else {\n throw new Error(\"ipaddr: the address has neither IPv6 nor IPv4 format\");\n }\n };\n\n ipaddr.parseCIDR = function(string) {\n var e;\n try {\n return ipaddr.IPv6.parseCIDR(string);\n } catch (error1) {\n e = error1;\n try {\n return ipaddr.IPv4.parseCIDR(string);\n } catch (error1) {\n e = error1;\n throw new Error(\"ipaddr: the address has neither IPv6 nor IPv4 CIDR format\");\n }\n }\n };\n\n ipaddr.fromByteArray = function(bytes) {\n var length;\n length = bytes.length;\n if (length === 4) {\n return new ipaddr.IPv4(bytes);\n } else if (length === 16) {\n return new ipaddr.IPv6(bytes);\n } else {\n throw new Error(\"ipaddr: the binary input is neither an IPv6 nor IPv4 address\");\n }\n };\n\n ipaddr.process = function(string) {\n var addr;\n addr = this.parse(string);\n if (addr.kind() === 'ipv6' && addr.isIPv4MappedAddress()) {\n return addr.toIPv4Address();\n } else {\n return addr;\n }\n };\n\n}).call(this);\n","/*!\n * proxy-addr\n * Copyright(c) 2014-2016 Douglas Christopher Wilson\n * MIT Licensed\n */\n\n'use strict'\n\n/**\n * Module exports.\n * @public\n */\n\nmodule.exports = proxyaddr\nmodule.exports.all = alladdrs\nmodule.exports.compile = compile\n\n/**\n * Module dependencies.\n * @private\n */\n\nvar forwarded = require('forwarded')\nvar ipaddr = require('ipaddr.js')\n\n/**\n * Variables.\n * @private\n */\n\nvar DIGIT_REGEXP = /^[0-9]+$/\nvar isip = ipaddr.isValid\nvar parseip = ipaddr.parse\n\n/**\n * Pre-defined IP ranges.\n * @private\n */\n\nvar IP_RANGES = {\n linklocal: ['169.254.0.0/16', 'fe80::/10'],\n loopback: ['127.0.0.1/8', '::1/128'],\n uniquelocal: ['10.0.0.0/8', '172.16.0.0/12', '192.168.0.0/16', 'fc00::/7']\n}\n\n/**\n * Get all addresses in the request, optionally stopping\n * at the first untrusted.\n *\n * @param {Object} request\n * @param {Function|Array|String} [trust]\n * @public\n */\n\nfunction alladdrs (req, trust) {\n // get addresses\n var addrs = forwarded(req)\n\n if (!trust) {\n // Return all addresses\n return addrs\n }\n\n if (typeof trust !== 'function') {\n trust = compile(trust)\n }\n\n for (var i = 0; i < addrs.length - 1; i++) {\n if (trust(addrs[i], i)) continue\n\n addrs.length = i + 1\n }\n\n return addrs\n}\n\n/**\n * Compile argument into trust function.\n *\n * @param {Array|String} val\n * @private\n */\n\nfunction compile (val) {\n if (!val) {\n throw new TypeError('argument is required')\n }\n\n var trust\n\n if (typeof val === 'string') {\n trust = [val]\n } else if (Array.isArray(val)) {\n trust = val.slice()\n } else {\n throw new TypeError('unsupported trust argument')\n }\n\n for (var i = 0; i < trust.length; i++) {\n val = trust[i]\n\n if (!Object.prototype.hasOwnProperty.call(IP_RANGES, val)) {\n continue\n }\n\n // Splice in pre-defined range\n val = IP_RANGES[val]\n trust.splice.apply(trust, [i, 1].concat(val))\n i += val.length - 1\n }\n\n return compileTrust(compileRangeSubnets(trust))\n}\n\n/**\n * Compile `arr` elements into range subnets.\n *\n * @param {Array} arr\n * @private\n */\n\nfunction compileRangeSubnets (arr) {\n var rangeSubnets = new Array(arr.length)\n\n for (var i = 0; i < arr.length; i++) {\n rangeSubnets[i] = parseipNotation(arr[i])\n }\n\n return rangeSubnets\n}\n\n/**\n * Compile range subnet array into trust function.\n *\n * @param {Array} rangeSubnets\n * @private\n */\n\nfunction compileTrust (rangeSubnets) {\n // Return optimized function based on length\n var len = rangeSubnets.length\n return len === 0\n ? trustNone\n : len === 1\n ? trustSingle(rangeSubnets[0])\n : trustMulti(rangeSubnets)\n}\n\n/**\n * Parse IP notation string into range subnet.\n *\n * @param {String} note\n * @private\n */\n\nfunction parseipNotation (note) {\n var pos = note.lastIndexOf('/')\n var str = pos !== -1\n ? note.substring(0, pos)\n : note\n\n if (!isip(str)) {\n throw new TypeError('invalid IP address: ' + str)\n }\n\n var ip = parseip(str)\n\n if (pos === -1 && ip.kind() === 'ipv6' && ip.isIPv4MappedAddress()) {\n // Store as IPv4\n ip = ip.toIPv4Address()\n }\n\n var max = ip.kind() === 'ipv6'\n ? 128\n : 32\n\n var range = pos !== -1\n ? note.substring(pos + 1, note.length)\n : null\n\n if (range === null) {\n range = max\n } else if (DIGIT_REGEXP.test(range)) {\n range = parseInt(range, 10)\n } else if (ip.kind() === 'ipv4' && isip(range)) {\n range = parseNetmask(range)\n } else {\n range = null\n }\n\n if (range <= 0 || range > max) {\n throw new TypeError('invalid range on address: ' + note)\n }\n\n return [ip, range]\n}\n\n/**\n * Parse netmask string into CIDR range.\n *\n * @param {String} netmask\n * @private\n */\n\nfunction parseNetmask (netmask) {\n var ip = parseip(netmask)\n var kind = ip.kind()\n\n return kind === 'ipv4'\n ? ip.prefixLengthFromSubnetMask()\n : null\n}\n\n/**\n * Determine address of proxied request.\n *\n * @param {Object} request\n * @param {Function|Array|String} trust\n * @public\n */\n\nfunction proxyaddr (req, trust) {\n if (!req) {\n throw new TypeError('req argument is required')\n }\n\n if (!trust) {\n throw new TypeError('trust argument is required')\n }\n\n var addrs = alladdrs(req, trust)\n var addr = addrs[addrs.length - 1]\n\n return addr\n}\n\n/**\n * Static trust function to trust nothing.\n *\n * @private\n */\n\nfunction trustNone () {\n return false\n}\n\n/**\n * Compile trust function for multiple subnets.\n *\n * @param {Array} subnets\n * @private\n */\n\nfunction trustMulti (subnets) {\n return function trust (addr) {\n if (!isip(addr)) return false\n\n var ip = parseip(addr)\n var ipconv\n var kind = ip.kind()\n\n for (var i = 0; i < subnets.length; i++) {\n var subnet = subnets[i]\n var subnetip = subnet[0]\n var subnetkind = subnetip.kind()\n var subnetrange = subnet[1]\n var trusted = ip\n\n if (kind !== subnetkind) {\n if (subnetkind === 'ipv4' && !ip.isIPv4MappedAddress()) {\n // Incompatible IP addresses\n continue\n }\n\n if (!ipconv) {\n // Convert IP to match subnet IP kind\n ipconv = subnetkind === 'ipv4'\n ? ip.toIPv4Address()\n : ip.toIPv4MappedAddress()\n }\n\n trusted = ipconv\n }\n\n if (trusted.match(subnetip, subnetrange)) {\n return true\n }\n }\n\n return false\n }\n}\n\n/**\n * Compile trust function for single subnet.\n *\n * @param {Object} subnet\n * @private\n */\n\nfunction trustSingle (subnet) {\n var subnetip = subnet[0]\n var subnetkind = subnetip.kind()\n var subnetisipv4 = subnetkind === 'ipv4'\n var subnetrange = subnet[1]\n\n return function trust (addr) {\n if (!isip(addr)) return false\n\n var ip = parseip(addr)\n var kind = ip.kind()\n\n if (kind !== subnetkind) {\n if (subnetisipv4 && !ip.isIPv4MappedAddress()) {\n // Incompatible IP addresses\n return false\n }\n\n // Convert IP to match subnet IP kind\n ip = subnetisipv4\n ? ip.toIPv4Address()\n : ip.toIPv4MappedAddress()\n }\n\n return ip.match(subnetip, subnetrange)\n }\n}\n","/*!\n * express\n * Copyright(c) 2009-2013 TJ Holowaychuk\n * Copyright(c) 2014-2015 Douglas Christopher Wilson\n * MIT Licensed\n */\n\n'use strict';\n\n/**\n * Module dependencies.\n * @api private\n */\n\nvar Buffer = require('safe-buffer').Buffer\nvar contentDisposition = require('content-disposition');\nvar contentType = require('content-type');\nvar deprecate = require('depd')('express');\nvar flatten = require('array-flatten');\nvar mime = require('send').mime;\nvar etag = require('etag');\nvar proxyaddr = require('proxy-addr');\nvar qs = require('qs');\nvar querystring = require('querystring');\n\n/**\n * Return strong ETag for `body`.\n *\n * @param {String|Buffer} body\n * @param {String} [encoding]\n * @return {String}\n * @api private\n */\n\nexports.etag = createETagGenerator({ weak: false })\n\n/**\n * Return weak ETag for `body`.\n *\n * @param {String|Buffer} body\n * @param {String} [encoding]\n * @return {String}\n * @api private\n */\n\nexports.wetag = createETagGenerator({ weak: true })\n\n/**\n * Check if `path` looks absolute.\n *\n * @param {String} path\n * @return {Boolean}\n * @api private\n */\n\nexports.isAbsolute = function(path){\n if ('/' === path[0]) return true;\n if (':' === path[1] && ('\\\\' === path[2] || '/' === path[2])) return true; // Windows device path\n if ('\\\\\\\\' === path.substring(0, 2)) return true; // Microsoft Azure absolute path\n};\n\n/**\n * Flatten the given `arr`.\n *\n * @param {Array} arr\n * @return {Array}\n * @api private\n */\n\nexports.flatten = deprecate.function(flatten,\n 'utils.flatten: use array-flatten npm module instead');\n\n/**\n * Normalize the given `type`, for example \"html\" becomes \"text/html\".\n *\n * @param {String} type\n * @return {Object}\n * @api private\n */\n\nexports.normalizeType = function(type){\n return ~type.indexOf('/')\n ? acceptParams(type)\n : { value: mime.lookup(type), params: {} };\n};\n\n/**\n * Normalize `types`, for example \"html\" becomes \"text/html\".\n *\n * @param {Array} types\n * @return {Array}\n * @api private\n */\n\nexports.normalizeTypes = function(types){\n var ret = [];\n\n for (var i = 0; i < types.length; ++i) {\n ret.push(exports.normalizeType(types[i]));\n }\n\n return ret;\n};\n\n/**\n * Generate Content-Disposition header appropriate for the filename.\n * non-ascii filenames are urlencoded and a filename* parameter is added\n *\n * @param {String} filename\n * @return {String}\n * @api private\n */\n\nexports.contentDisposition = deprecate.function(contentDisposition,\n 'utils.contentDisposition: use content-disposition npm module instead');\n\n/**\n * Parse accept params `str` returning an\n * object with `.value`, `.quality` and `.params`.\n *\n * @param {String} str\n * @return {Object}\n * @api private\n */\n\nfunction acceptParams (str) {\n var parts = str.split(/ *; */);\n var ret = { value: parts[0], quality: 1, params: {} }\n\n for (var i = 1; i < parts.length; ++i) {\n var pms = parts[i].split(/ *= */);\n if ('q' === pms[0]) {\n ret.quality = parseFloat(pms[1]);\n } else {\n ret.params[pms[0]] = pms[1];\n }\n }\n\n return ret;\n}\n\n/**\n * Compile \"etag\" value to function.\n *\n * @param {Boolean|String|Function} val\n * @return {Function}\n * @api private\n */\n\nexports.compileETag = function(val) {\n var fn;\n\n if (typeof val === 'function') {\n return val;\n }\n\n switch (val) {\n case true:\n case 'weak':\n fn = exports.wetag;\n break;\n case false:\n break;\n case 'strong':\n fn = exports.etag;\n break;\n default:\n throw new TypeError('unknown value for etag function: ' + val);\n }\n\n return fn;\n}\n\n/**\n * Compile \"query parser\" value to function.\n *\n * @param {String|Function} val\n * @return {Function}\n * @api private\n */\n\nexports.compileQueryParser = function compileQueryParser(val) {\n var fn;\n\n if (typeof val === 'function') {\n return val;\n }\n\n switch (val) {\n case true:\n case 'simple':\n fn = querystring.parse;\n break;\n case false:\n fn = newObject;\n break;\n case 'extended':\n fn = parseExtendedQueryString;\n break;\n default:\n throw new TypeError('unknown value for query parser function: ' + val);\n }\n\n return fn;\n}\n\n/**\n * Compile \"proxy trust\" value to function.\n *\n * @param {Boolean|String|Number|Array|Function} val\n * @return {Function}\n * @api private\n */\n\nexports.compileTrust = function(val) {\n if (typeof val === 'function') return val;\n\n if (val === true) {\n // Support plain true/false\n return function(){ return true };\n }\n\n if (typeof val === 'number') {\n // Support trusting hop count\n return function(a, i){ return i < val };\n }\n\n if (typeof val === 'string') {\n // Support comma-separated values\n val = val.split(',')\n .map(function (v) { return v.trim() })\n }\n\n return proxyaddr.compile(val || []);\n}\n\n/**\n * Set the charset in a given Content-Type string.\n *\n * @param {String} type\n * @param {String} charset\n * @return {String}\n * @api private\n */\n\nexports.setCharset = function setCharset(type, charset) {\n if (!type || !charset) {\n return type;\n }\n\n // parse type\n var parsed = contentType.parse(type);\n\n // set charset\n parsed.parameters.charset = charset;\n\n // format type\n return contentType.format(parsed);\n};\n\n/**\n * Create an ETag generator function, generating ETags with\n * the given options.\n *\n * @param {object} options\n * @return {function}\n * @private\n */\n\nfunction createETagGenerator (options) {\n return function generateETag (body, encoding) {\n var buf = !Buffer.isBuffer(body)\n ? Buffer.from(body, encoding)\n : body\n\n return etag(buf, options)\n }\n}\n\n/**\n * Parse an extended query string with qs.\n *\n * @param {String} str\n * @return {Object}\n * @private\n */\n\nfunction parseExtendedQueryString(str) {\n return qs.parse(str, {\n allowPrototypes: true\n });\n}\n\n/**\n * Return new empty object.\n *\n * @return {Object}\n * @api private\n */\n\nfunction newObject() {\n return {};\n}\n","/*!\n * express\n * Copyright(c) 2009-2013 TJ Holowaychuk\n * Copyright(c) 2013 Roman Shtylman\n * Copyright(c) 2014-2015 Douglas Christopher Wilson\n * MIT Licensed\n */\n\n'use strict';\n\n/**\n * Module dependencies.\n * @private\n */\n\nvar finalhandler = require('finalhandler');\nvar Router = require('./router');\nvar methods = require('methods');\nvar middleware = require('./middleware/init');\nvar query = require('./middleware/query');\nvar debug = require('debug')('express:application');\nvar View = require('./view');\nvar http = require('http');\nvar compileETag = require('./utils').compileETag;\nvar compileQueryParser = require('./utils').compileQueryParser;\nvar compileTrust = require('./utils').compileTrust;\nvar deprecate = require('depd')('express');\nvar flatten = require('array-flatten');\nvar merge = require('utils-merge');\nvar resolve = require('path').resolve;\nvar setPrototypeOf = require('setprototypeof')\n\n/**\n * Module variables.\n * @private\n */\n\nvar hasOwnProperty = Object.prototype.hasOwnProperty\nvar slice = Array.prototype.slice;\n\n/**\n * Application prototype.\n */\n\nvar app = exports = module.exports = {};\n\n/**\n * Variable for trust proxy inheritance back-compat\n * @private\n */\n\nvar trustProxyDefaultSymbol = '@@symbol:trust_proxy_default';\n\n/**\n * Initialize the server.\n *\n * - setup default configuration\n * - setup default middleware\n * - setup route reflection methods\n *\n * @private\n */\n\napp.init = function init() {\n this.cache = {};\n this.engines = {};\n this.settings = {};\n\n this.defaultConfiguration();\n};\n\n/**\n * Initialize application configuration.\n * @private\n */\n\napp.defaultConfiguration = function defaultConfiguration() {\n var env = process.env.NODE_ENV || 'development';\n\n // default settings\n this.enable('x-powered-by');\n this.set('etag', 'weak');\n this.set('env', env);\n this.set('query parser', 'extended');\n this.set('subdomain offset', 2);\n this.set('trust proxy', false);\n\n // trust proxy inherit back-compat\n Object.defineProperty(this.settings, trustProxyDefaultSymbol, {\n configurable: true,\n value: true\n });\n\n debug('booting in %s mode', env);\n\n this.on('mount', function onmount(parent) {\n // inherit trust proxy\n if (this.settings[trustProxyDefaultSymbol] === true\n && typeof parent.settings['trust proxy fn'] === 'function') {\n delete this.settings['trust proxy'];\n delete this.settings['trust proxy fn'];\n }\n\n // inherit protos\n setPrototypeOf(this.request, parent.request)\n setPrototypeOf(this.response, parent.response)\n setPrototypeOf(this.engines, parent.engines)\n setPrototypeOf(this.settings, parent.settings)\n });\n\n // setup locals\n this.locals = Object.create(null);\n\n // top-most app is mounted at /\n this.mountpath = '/';\n\n // default locals\n this.locals.settings = this.settings;\n\n // default configuration\n this.set('view', View);\n this.set('views', resolve('views'));\n this.set('jsonp callback name', 'callback');\n\n if (env === 'production') {\n this.enable('view cache');\n }\n\n Object.defineProperty(this, 'router', {\n get: function() {\n throw new Error('\\'app.router\\' is deprecated!\\nPlease see the 3.x to 4.x migration guide for details on how to update your app.');\n }\n });\n};\n\n/**\n * lazily adds the base router if it has not yet been added.\n *\n * We cannot add the base router in the defaultConfiguration because\n * it reads app settings which might be set after that has run.\n *\n * @private\n */\napp.lazyrouter = function lazyrouter() {\n if (!this._router) {\n this._router = new Router({\n caseSensitive: this.enabled('case sensitive routing'),\n strict: this.enabled('strict routing')\n });\n\n this._router.use(query(this.get('query parser fn')));\n this._router.use(middleware.init(this));\n }\n};\n\n/**\n * Dispatch a req, res pair into the application. Starts pipeline processing.\n *\n * If no callback is provided, then default error handlers will respond\n * in the event of an error bubbling through the stack.\n *\n * @private\n */\n\napp.handle = function handle(req, res, callback) {\n var router = this._router;\n\n // final handler\n var done = callback || finalhandler(req, res, {\n env: this.get('env'),\n onerror: logerror.bind(this)\n });\n\n // no routes\n if (!router) {\n debug('no routes defined on app');\n done();\n return;\n }\n\n router.handle(req, res, done);\n};\n\n/**\n * Proxy `Router#use()` to add middleware to the app router.\n * See Router#use() documentation for details.\n *\n * If the _fn_ parameter is an express app, then it will be\n * mounted at the _route_ specified.\n *\n * @public\n */\n\napp.use = function use(fn) {\n var offset = 0;\n var path = '/';\n\n // default path to '/'\n // disambiguate app.use([fn])\n if (typeof fn !== 'function') {\n var arg = fn;\n\n while (Array.isArray(arg) && arg.length !== 0) {\n arg = arg[0];\n }\n\n // first arg is the path\n if (typeof arg !== 'function') {\n offset = 1;\n path = fn;\n }\n }\n\n var fns = flatten(slice.call(arguments, offset));\n\n if (fns.length === 0) {\n throw new TypeError('app.use() requires a middleware function')\n }\n\n // setup router\n this.lazyrouter();\n var router = this._router;\n\n fns.forEach(function (fn) {\n // non-express app\n if (!fn || !fn.handle || !fn.set) {\n return router.use(path, fn);\n }\n\n debug('.use app under %s', path);\n fn.mountpath = path;\n fn.parent = this;\n\n // restore .app property on req and res\n router.use(path, function mounted_app(req, res, next) {\n var orig = req.app;\n fn.handle(req, res, function (err) {\n setPrototypeOf(req, orig.request)\n setPrototypeOf(res, orig.response)\n next(err);\n });\n });\n\n // mounted an app\n fn.emit('mount', this);\n }, this);\n\n return this;\n};\n\n/**\n * Proxy to the app `Router#route()`\n * Returns a new `Route` instance for the _path_.\n *\n * Routes are isolated middleware stacks for specific paths.\n * See the Route api docs for details.\n *\n * @public\n */\n\napp.route = function route(path) {\n this.lazyrouter();\n return this._router.route(path);\n};\n\n/**\n * Register the given template engine callback `fn`\n * as `ext`.\n *\n * By default will `require()` the engine based on the\n * file extension. For example if you try to render\n * a \"foo.ejs\" file Express will invoke the following internally:\n *\n * app.engine('ejs', require('ejs').__express);\n *\n * For engines that do not provide `.__express` out of the box,\n * or if you wish to \"map\" a different extension to the template engine\n * you may use this method. For example mapping the EJS template engine to\n * \".html\" files:\n *\n * app.engine('html', require('ejs').renderFile);\n *\n * In this case EJS provides a `.renderFile()` method with\n * the same signature that Express expects: `(path, options, callback)`,\n * though note that it aliases this method as `ejs.__express` internally\n * so if you're using \".ejs\" extensions you don't need to do anything.\n *\n * Some template engines do not follow this convention, the\n * [Consolidate.js](https://github.com/tj/consolidate.js)\n * library was created to map all of node's popular template\n * engines to follow this convention, thus allowing them to\n * work seamlessly within Express.\n *\n * @param {String} ext\n * @param {Function} fn\n * @return {app} for chaining\n * @public\n */\n\napp.engine = function engine(ext, fn) {\n if (typeof fn !== 'function') {\n throw new Error('callback function required');\n }\n\n // get file extension\n var extension = ext[0] !== '.'\n ? '.' + ext\n : ext;\n\n // store engine\n this.engines[extension] = fn;\n\n return this;\n};\n\n/**\n * Proxy to `Router#param()` with one added api feature. The _name_ parameter\n * can be an array of names.\n *\n * See the Router#param() docs for more details.\n *\n * @param {String|Array} name\n * @param {Function} fn\n * @return {app} for chaining\n * @public\n */\n\napp.param = function param(name, fn) {\n this.lazyrouter();\n\n if (Array.isArray(name)) {\n for (var i = 0; i < name.length; i++) {\n this.param(name[i], fn);\n }\n\n return this;\n }\n\n this._router.param(name, fn);\n\n return this;\n};\n\n/**\n * Assign `setting` to `val`, or return `setting`'s value.\n *\n * app.set('foo', 'bar');\n * app.set('foo');\n * // => \"bar\"\n *\n * Mounted servers inherit their parent server's settings.\n *\n * @param {String} setting\n * @param {*} [val]\n * @return {Server} for chaining\n * @public\n */\n\napp.set = function set(setting, val) {\n if (arguments.length === 1) {\n // app.get(setting)\n var settings = this.settings\n\n while (settings && settings !== Object.prototype) {\n if (hasOwnProperty.call(settings, setting)) {\n return settings[setting]\n }\n\n settings = Object.getPrototypeOf(settings)\n }\n\n return undefined\n }\n\n debug('set \"%s\" to %o', setting, val);\n\n // set value\n this.settings[setting] = val;\n\n // trigger matched settings\n switch (setting) {\n case 'etag':\n this.set('etag fn', compileETag(val));\n break;\n case 'query parser':\n this.set('query parser fn', compileQueryParser(val));\n break;\n case 'trust proxy':\n this.set('trust proxy fn', compileTrust(val));\n\n // trust proxy inherit back-compat\n Object.defineProperty(this.settings, trustProxyDefaultSymbol, {\n configurable: true,\n value: false\n });\n\n break;\n }\n\n return this;\n};\n\n/**\n * Return the app's absolute pathname\n * based on the parent(s) that have\n * mounted it.\n *\n * For example if the application was\n * mounted as \"/admin\", which itself\n * was mounted as \"/blog\" then the\n * return value would be \"/blog/admin\".\n *\n * @return {String}\n * @private\n */\n\napp.path = function path() {\n return this.parent\n ? this.parent.path() + this.mountpath\n : '';\n};\n\n/**\n * Check if `setting` is enabled (truthy).\n *\n * app.enabled('foo')\n * // => false\n *\n * app.enable('foo')\n * app.enabled('foo')\n * // => true\n *\n * @param {String} setting\n * @return {Boolean}\n * @public\n */\n\napp.enabled = function enabled(setting) {\n return Boolean(this.set(setting));\n};\n\n/**\n * Check if `setting` is disabled.\n *\n * app.disabled('foo')\n * // => true\n *\n * app.enable('foo')\n * app.disabled('foo')\n * // => false\n *\n * @param {String} setting\n * @return {Boolean}\n * @public\n */\n\napp.disabled = function disabled(setting) {\n return !this.set(setting);\n};\n\n/**\n * Enable `setting`.\n *\n * @param {String} setting\n * @return {app} for chaining\n * @public\n */\n\napp.enable = function enable(setting) {\n return this.set(setting, true);\n};\n\n/**\n * Disable `setting`.\n *\n * @param {String} setting\n * @return {app} for chaining\n * @public\n */\n\napp.disable = function disable(setting) {\n return this.set(setting, false);\n};\n\n/**\n * Delegate `.VERB(...)` calls to `router.VERB(...)`.\n */\n\nmethods.forEach(function(method){\n app[method] = function(path){\n if (method === 'get' && arguments.length === 1) {\n // app.get(setting)\n return this.set(path);\n }\n\n this.lazyrouter();\n\n var route = this._router.route(path);\n route[method].apply(route, slice.call(arguments, 1));\n return this;\n };\n});\n\n/**\n * Special-cased \"all\" method, applying the given route `path`,\n * middleware, and callback to _every_ HTTP method.\n *\n * @param {String} path\n * @param {Function} ...\n * @return {app} for chaining\n * @public\n */\n\napp.all = function all(path) {\n this.lazyrouter();\n\n var route = this._router.route(path);\n var args = slice.call(arguments, 1);\n\n for (var i = 0; i < methods.length; i++) {\n route[methods[i]].apply(route, args);\n }\n\n return this;\n};\n\n// del -> delete alias\n\napp.del = deprecate.function(app.delete, 'app.del: Use app.delete instead');\n\n/**\n * Render the given view `name` name with `options`\n * and a callback accepting an error and the\n * rendered template string.\n *\n * Example:\n *\n * app.render('email', { name: 'Tobi' }, function(err, html){\n * // ...\n * })\n *\n * @param {String} name\n * @param {Object|Function} options or fn\n * @param {Function} callback\n * @public\n */\n\napp.render = function render(name, options, callback) {\n var cache = this.cache;\n var done = callback;\n var engines = this.engines;\n var opts = options;\n var renderOptions = {};\n var view;\n\n // support callback function as second arg\n if (typeof options === 'function') {\n done = options;\n opts = {};\n }\n\n // merge app.locals\n merge(renderOptions, this.locals);\n\n // merge options._locals\n if (opts._locals) {\n merge(renderOptions, opts._locals);\n }\n\n // merge options\n merge(renderOptions, opts);\n\n // set .cache unless explicitly provided\n if (renderOptions.cache == null) {\n renderOptions.cache = this.enabled('view cache');\n }\n\n // primed cache\n if (renderOptions.cache) {\n view = cache[name];\n }\n\n // view\n if (!view) {\n var View = this.get('view');\n\n view = new View(name, {\n defaultEngine: this.get('view engine'),\n root: this.get('views'),\n engines: engines\n });\n\n if (!view.path) {\n var dirs = Array.isArray(view.root) && view.root.length > 1\n ? 'directories \"' + view.root.slice(0, -1).join('\", \"') + '\" or \"' + view.root[view.root.length - 1] + '\"'\n : 'directory \"' + view.root + '\"'\n var err = new Error('Failed to lookup view \"' + name + '\" in views ' + dirs);\n err.view = view;\n return done(err);\n }\n\n // prime the cache\n if (renderOptions.cache) {\n cache[name] = view;\n }\n }\n\n // render\n tryRender(view, renderOptions, done);\n};\n\n/**\n * Listen for connections.\n *\n * A node `http.Server` is returned, with this\n * application (which is a `Function`) as its\n * callback. If you wish to create both an HTTP\n * and HTTPS server you may do so with the \"http\"\n * and \"https\" modules as shown here:\n *\n * var http = require('http')\n * , https = require('https')\n * , express = require('express')\n * , app = express();\n *\n * http.createServer(app).listen(80);\n * https.createServer({ ... }, app).listen(443);\n *\n * @return {http.Server}\n * @public\n */\n\napp.listen = function listen() {\n var server = http.createServer(this);\n return server.listen.apply(server, arguments);\n};\n\n/**\n * Log error using console.error.\n *\n * @param {Error} err\n * @private\n */\n\nfunction logerror(err) {\n /* istanbul ignore next */\n if (this.get('env') !== 'test') console.error(err.stack || err.toString());\n}\n\n/**\n * Try rendering a view.\n * @private\n */\n\nfunction tryRender(view, options, callback) {\n try {\n view.render(options, callback);\n } catch (err) {\n callback(err);\n }\n}\n","/**\n * negotiator\n * Copyright(c) 2012 Isaac Z. Schlueter\n * Copyright(c) 2014 Federico Romero\n * Copyright(c) 2014-2015 Douglas Christopher Wilson\n * MIT Licensed\n */\n\n'use strict';\n\n/**\n * Module exports.\n * @public\n */\n\nmodule.exports = preferredCharsets;\nmodule.exports.preferredCharsets = preferredCharsets;\n\n/**\n * Module variables.\n * @private\n */\n\nvar simpleCharsetRegExp = /^\\s*([^\\s;]+)\\s*(?:;(.*))?$/;\n\n/**\n * Parse the Accept-Charset header.\n * @private\n */\n\nfunction parseAcceptCharset(accept) {\n var accepts = accept.split(',');\n\n for (var i = 0, j = 0; i < accepts.length; i++) {\n var charset = parseCharset(accepts[i].trim(), i);\n\n if (charset) {\n accepts[j++] = charset;\n }\n }\n\n // trim accepts\n accepts.length = j;\n\n return accepts;\n}\n\n/**\n * Parse a charset from the Accept-Charset header.\n * @private\n */\n\nfunction parseCharset(str, i) {\n var match = simpleCharsetRegExp.exec(str);\n if (!match) return null;\n\n var charset = match[1];\n var q = 1;\n if (match[2]) {\n var params = match[2].split(';')\n for (var j = 0; j < params.length; j++) {\n var p = params[j].trim().split('=');\n if (p[0] === 'q') {\n q = parseFloat(p[1]);\n break;\n }\n }\n }\n\n return {\n charset: charset,\n q: q,\n i: i\n };\n}\n\n/**\n * Get the priority of a charset.\n * @private\n */\n\nfunction getCharsetPriority(charset, accepted, index) {\n var priority = {o: -1, q: 0, s: 0};\n\n for (var i = 0; i < accepted.length; i++) {\n var spec = specify(charset, accepted[i], index);\n\n if (spec && (priority.s - spec.s || priority.q - spec.q || priority.o - spec.o) < 0) {\n priority = spec;\n }\n }\n\n return priority;\n}\n\n/**\n * Get the specificity of the charset.\n * @private\n */\n\nfunction specify(charset, spec, index) {\n var s = 0;\n if(spec.charset.toLowerCase() === charset.toLowerCase()){\n s |= 1;\n } else if (spec.charset !== '*' ) {\n return null\n }\n\n return {\n i: index,\n o: spec.i,\n q: spec.q,\n s: s\n }\n}\n\n/**\n * Get the preferred charsets from an Accept-Charset header.\n * @public\n */\n\nfunction preferredCharsets(accept, provided) {\n // RFC 2616 sec 14.2: no header = *\n var accepts = parseAcceptCharset(accept === undefined ? '*' : accept || '');\n\n if (!provided) {\n // sorted list of all charsets\n return accepts\n .filter(isQuality)\n .sort(compareSpecs)\n .map(getFullCharset);\n }\n\n var priorities = provided.map(function getPriority(type, index) {\n return getCharsetPriority(type, accepts, index);\n });\n\n // sorted list of accepted charsets\n return priorities.filter(isQuality).sort(compareSpecs).map(function getCharset(priority) {\n return provided[priorities.indexOf(priority)];\n });\n}\n\n/**\n * Compare two specs.\n * @private\n */\n\nfunction compareSpecs(a, b) {\n return (b.q - a.q) || (b.s - a.s) || (a.o - b.o) || (a.i - b.i) || 0;\n}\n\n/**\n * Get full charset string.\n * @private\n */\n\nfunction getFullCharset(spec) {\n return spec.charset;\n}\n\n/**\n * Check if a spec has any quality.\n * @private\n */\n\nfunction isQuality(spec) {\n return spec.q > 0;\n}\n","/**\n * negotiator\n * Copyright(c) 2012 Isaac Z. Schlueter\n * Copyright(c) 2014 Federico Romero\n * Copyright(c) 2014-2015 Douglas Christopher Wilson\n * MIT Licensed\n */\n\n'use strict';\n\n/**\n * Module exports.\n * @public\n */\n\nmodule.exports = preferredEncodings;\nmodule.exports.preferredEncodings = preferredEncodings;\n\n/**\n * Module variables.\n * @private\n */\n\nvar simpleEncodingRegExp = /^\\s*([^\\s;]+)\\s*(?:;(.*))?$/;\n\n/**\n * Parse the Accept-Encoding header.\n * @private\n */\n\nfunction parseAcceptEncoding(accept) {\n var accepts = accept.split(',');\n var hasIdentity = false;\n var minQuality = 1;\n\n for (var i = 0, j = 0; i < accepts.length; i++) {\n var encoding = parseEncoding(accepts[i].trim(), i);\n\n if (encoding) {\n accepts[j++] = encoding;\n hasIdentity = hasIdentity || specify('identity', encoding);\n minQuality = Math.min(minQuality, encoding.q || 1);\n }\n }\n\n if (!hasIdentity) {\n /*\n * If identity doesn't explicitly appear in the accept-encoding header,\n * it's added to the list of acceptable encoding with the lowest q\n */\n accepts[j++] = {\n encoding: 'identity',\n q: minQuality,\n i: i\n };\n }\n\n // trim accepts\n accepts.length = j;\n\n return accepts;\n}\n\n/**\n * Parse an encoding from the Accept-Encoding header.\n * @private\n */\n\nfunction parseEncoding(str, i) {\n var match = simpleEncodingRegExp.exec(str);\n if (!match) return null;\n\n var encoding = match[1];\n var q = 1;\n if (match[2]) {\n var params = match[2].split(';');\n for (var j = 0; j < params.length; j++) {\n var p = params[j].trim().split('=');\n if (p[0] === 'q') {\n q = parseFloat(p[1]);\n break;\n }\n }\n }\n\n return {\n encoding: encoding,\n q: q,\n i: i\n };\n}\n\n/**\n * Get the priority of an encoding.\n * @private\n */\n\nfunction getEncodingPriority(encoding, accepted, index) {\n var priority = {o: -1, q: 0, s: 0};\n\n for (var i = 0; i < accepted.length; i++) {\n var spec = specify(encoding, accepted[i], index);\n\n if (spec && (priority.s - spec.s || priority.q - spec.q || priority.o - spec.o) < 0) {\n priority = spec;\n }\n }\n\n return priority;\n}\n\n/**\n * Get the specificity of the encoding.\n * @private\n */\n\nfunction specify(encoding, spec, index) {\n var s = 0;\n if(spec.encoding.toLowerCase() === encoding.toLowerCase()){\n s |= 1;\n } else if (spec.encoding !== '*' ) {\n return null\n }\n\n return {\n i: index,\n o: spec.i,\n q: spec.q,\n s: s\n }\n};\n\n/**\n * Get the preferred encodings from an Accept-Encoding header.\n * @public\n */\n\nfunction preferredEncodings(accept, provided) {\n var accepts = parseAcceptEncoding(accept || '');\n\n if (!provided) {\n // sorted list of all encodings\n return accepts\n .filter(isQuality)\n .sort(compareSpecs)\n .map(getFullEncoding);\n }\n\n var priorities = provided.map(function getPriority(type, index) {\n return getEncodingPriority(type, accepts, index);\n });\n\n // sorted list of accepted encodings\n return priorities.filter(isQuality).sort(compareSpecs).map(function getEncoding(priority) {\n return provided[priorities.indexOf(priority)];\n });\n}\n\n/**\n * Compare two specs.\n * @private\n */\n\nfunction compareSpecs(a, b) {\n return (b.q - a.q) || (b.s - a.s) || (a.o - b.o) || (a.i - b.i) || 0;\n}\n\n/**\n * Get full encoding string.\n * @private\n */\n\nfunction getFullEncoding(spec) {\n return spec.encoding;\n}\n\n/**\n * Check if a spec has any quality.\n * @private\n */\n\nfunction isQuality(spec) {\n return spec.q > 0;\n}\n","/**\n * negotiator\n * Copyright(c) 2012 Isaac Z. Schlueter\n * Copyright(c) 2014 Federico Romero\n * Copyright(c) 2014-2015 Douglas Christopher Wilson\n * MIT Licensed\n */\n\n'use strict';\n\n/**\n * Module exports.\n * @public\n */\n\nmodule.exports = preferredLanguages;\nmodule.exports.preferredLanguages = preferredLanguages;\n\n/**\n * Module variables.\n * @private\n */\n\nvar simpleLanguageRegExp = /^\\s*([^\\s\\-;]+)(?:-([^\\s;]+))?\\s*(?:;(.*))?$/;\n\n/**\n * Parse the Accept-Language header.\n * @private\n */\n\nfunction parseAcceptLanguage(accept) {\n var accepts = accept.split(',');\n\n for (var i = 0, j = 0; i < accepts.length; i++) {\n var language = parseLanguage(accepts[i].trim(), i);\n\n if (language) {\n accepts[j++] = language;\n }\n }\n\n // trim accepts\n accepts.length = j;\n\n return accepts;\n}\n\n/**\n * Parse a language from the Accept-Language header.\n * @private\n */\n\nfunction parseLanguage(str, i) {\n var match = simpleLanguageRegExp.exec(str);\n if (!match) return null;\n\n var prefix = match[1]\n var suffix = match[2]\n var full = prefix\n\n if (suffix) full += \"-\" + suffix;\n\n var q = 1;\n if (match[3]) {\n var params = match[3].split(';')\n for (var j = 0; j < params.length; j++) {\n var p = params[j].split('=');\n if (p[0] === 'q') q = parseFloat(p[1]);\n }\n }\n\n return {\n prefix: prefix,\n suffix: suffix,\n q: q,\n i: i,\n full: full\n };\n}\n\n/**\n * Get the priority of a language.\n * @private\n */\n\nfunction getLanguagePriority(language, accepted, index) {\n var priority = {o: -1, q: 0, s: 0};\n\n for (var i = 0; i < accepted.length; i++) {\n var spec = specify(language, accepted[i], index);\n\n if (spec && (priority.s - spec.s || priority.q - spec.q || priority.o - spec.o) < 0) {\n priority = spec;\n }\n }\n\n return priority;\n}\n\n/**\n * Get the specificity of the language.\n * @private\n */\n\nfunction specify(language, spec, index) {\n var p = parseLanguage(language)\n if (!p) return null;\n var s = 0;\n if(spec.full.toLowerCase() === p.full.toLowerCase()){\n s |= 4;\n } else if (spec.prefix.toLowerCase() === p.full.toLowerCase()) {\n s |= 2;\n } else if (spec.full.toLowerCase() === p.prefix.toLowerCase()) {\n s |= 1;\n } else if (spec.full !== '*' ) {\n return null\n }\n\n return {\n i: index,\n o: spec.i,\n q: spec.q,\n s: s\n }\n};\n\n/**\n * Get the preferred languages from an Accept-Language header.\n * @public\n */\n\nfunction preferredLanguages(accept, provided) {\n // RFC 2616 sec 14.4: no header = *\n var accepts = parseAcceptLanguage(accept === undefined ? '*' : accept || '');\n\n if (!provided) {\n // sorted list of all languages\n return accepts\n .filter(isQuality)\n .sort(compareSpecs)\n .map(getFullLanguage);\n }\n\n var priorities = provided.map(function getPriority(type, index) {\n return getLanguagePriority(type, accepts, index);\n });\n\n // sorted list of accepted languages\n return priorities.filter(isQuality).sort(compareSpecs).map(function getLanguage(priority) {\n return provided[priorities.indexOf(priority)];\n });\n}\n\n/**\n * Compare two specs.\n * @private\n */\n\nfunction compareSpecs(a, b) {\n return (b.q - a.q) || (b.s - a.s) || (a.o - b.o) || (a.i - b.i) || 0;\n}\n\n/**\n * Get full language string.\n * @private\n */\n\nfunction getFullLanguage(spec) {\n return spec.full;\n}\n\n/**\n * Check if a spec has any quality.\n * @private\n */\n\nfunction isQuality(spec) {\n return spec.q > 0;\n}\n","/**\n * negotiator\n * Copyright(c) 2012 Isaac Z. Schlueter\n * Copyright(c) 2014 Federico Romero\n * Copyright(c) 2014-2015 Douglas Christopher Wilson\n * MIT Licensed\n */\n\n'use strict';\n\n/**\n * Module exports.\n * @public\n */\n\nmodule.exports = preferredMediaTypes;\nmodule.exports.preferredMediaTypes = preferredMediaTypes;\n\n/**\n * Module variables.\n * @private\n */\n\nvar simpleMediaTypeRegExp = /^\\s*([^\\s\\/;]+)\\/([^;\\s]+)\\s*(?:;(.*))?$/;\n\n/**\n * Parse the Accept header.\n * @private\n */\n\nfunction parseAccept(accept) {\n var accepts = splitMediaTypes(accept);\n\n for (var i = 0, j = 0; i < accepts.length; i++) {\n var mediaType = parseMediaType(accepts[i].trim(), i);\n\n if (mediaType) {\n accepts[j++] = mediaType;\n }\n }\n\n // trim accepts\n accepts.length = j;\n\n return accepts;\n}\n\n/**\n * Parse a media type from the Accept header.\n * @private\n */\n\nfunction parseMediaType(str, i) {\n var match = simpleMediaTypeRegExp.exec(str);\n if (!match) return null;\n\n var params = Object.create(null);\n var q = 1;\n var subtype = match[2];\n var type = match[1];\n\n if (match[3]) {\n var kvps = splitParameters(match[3]).map(splitKeyValuePair);\n\n for (var j = 0; j < kvps.length; j++) {\n var pair = kvps[j];\n var key = pair[0].toLowerCase();\n var val = pair[1];\n\n // get the value, unwrapping quotes\n var value = val && val[0] === '\"' && val[val.length - 1] === '\"'\n ? val.substr(1, val.length - 2)\n : val;\n\n if (key === 'q') {\n q = parseFloat(value);\n break;\n }\n\n // store parameter\n params[key] = value;\n }\n }\n\n return {\n type: type,\n subtype: subtype,\n params: params,\n q: q,\n i: i\n };\n}\n\n/**\n * Get the priority of a media type.\n * @private\n */\n\nfunction getMediaTypePriority(type, accepted, index) {\n var priority = {o: -1, q: 0, s: 0};\n\n for (var i = 0; i < accepted.length; i++) {\n var spec = specify(type, accepted[i], index);\n\n if (spec && (priority.s - spec.s || priority.q - spec.q || priority.o - spec.o) < 0) {\n priority = spec;\n }\n }\n\n return priority;\n}\n\n/**\n * Get the specificity of the media type.\n * @private\n */\n\nfunction specify(type, spec, index) {\n var p = parseMediaType(type);\n var s = 0;\n\n if (!p) {\n return null;\n }\n\n if(spec.type.toLowerCase() == p.type.toLowerCase()) {\n s |= 4\n } else if(spec.type != '*') {\n return null;\n }\n\n if(spec.subtype.toLowerCase() == p.subtype.toLowerCase()) {\n s |= 2\n } else if(spec.subtype != '*') {\n return null;\n }\n\n var keys = Object.keys(spec.params);\n if (keys.length > 0) {\n if (keys.every(function (k) {\n return spec.params[k] == '*' || (spec.params[k] || '').toLowerCase() == (p.params[k] || '').toLowerCase();\n })) {\n s |= 1\n } else {\n return null\n }\n }\n\n return {\n i: index,\n o: spec.i,\n q: spec.q,\n s: s,\n }\n}\n\n/**\n * Get the preferred media types from an Accept header.\n * @public\n */\n\nfunction preferredMediaTypes(accept, provided) {\n // RFC 2616 sec 14.2: no header = */*\n var accepts = parseAccept(accept === undefined ? '*/*' : accept || '');\n\n if (!provided) {\n // sorted list of all types\n return accepts\n .filter(isQuality)\n .sort(compareSpecs)\n .map(getFullType);\n }\n\n var priorities = provided.map(function getPriority(type, index) {\n return getMediaTypePriority(type, accepts, index);\n });\n\n // sorted list of accepted types\n return priorities.filter(isQuality).sort(compareSpecs).map(function getType(priority) {\n return provided[priorities.indexOf(priority)];\n });\n}\n\n/**\n * Compare two specs.\n * @private\n */\n\nfunction compareSpecs(a, b) {\n return (b.q - a.q) || (b.s - a.s) || (a.o - b.o) || (a.i - b.i) || 0;\n}\n\n/**\n * Get full type string.\n * @private\n */\n\nfunction getFullType(spec) {\n return spec.type + '/' + spec.subtype;\n}\n\n/**\n * Check if a spec has any quality.\n * @private\n */\n\nfunction isQuality(spec) {\n return spec.q > 0;\n}\n\n/**\n * Count the number of quotes in a string.\n * @private\n */\n\nfunction quoteCount(string) {\n var count = 0;\n var index = 0;\n\n while ((index = string.indexOf('\"', index)) !== -1) {\n count++;\n index++;\n }\n\n return count;\n}\n\n/**\n * Split a key value pair.\n * @private\n */\n\nfunction splitKeyValuePair(str) {\n var index = str.indexOf('=');\n var key;\n var val;\n\n if (index === -1) {\n key = str;\n } else {\n key = str.substr(0, index);\n val = str.substr(index + 1);\n }\n\n return [key, val];\n}\n\n/**\n * Split an Accept header into media types.\n * @private\n */\n\nfunction splitMediaTypes(accept) {\n var accepts = accept.split(',');\n\n for (var i = 1, j = 0; i < accepts.length; i++) {\n if (quoteCount(accepts[j]) % 2 == 0) {\n accepts[++j] = accepts[i];\n } else {\n accepts[j] += ',' + accepts[i];\n }\n }\n\n // trim accepts\n accepts.length = j + 1;\n\n return accepts;\n}\n\n/**\n * Split a string of parameters.\n * @private\n */\n\nfunction splitParameters(str) {\n var parameters = str.split(';');\n\n for (var i = 1, j = 0; i < parameters.length; i++) {\n if (quoteCount(parameters[j]) % 2 == 0) {\n parameters[++j] = parameters[i];\n } else {\n parameters[j] += ';' + parameters[i];\n }\n }\n\n // trim parameters\n parameters.length = j + 1;\n\n for (var i = 0; i < parameters.length; i++) {\n parameters[i] = parameters[i].trim();\n }\n\n return parameters;\n}\n","/*!\n * negotiator\n * Copyright(c) 2012 Federico Romero\n * Copyright(c) 2012-2014 Isaac Z. Schlueter\n * Copyright(c) 2015 Douglas Christopher Wilson\n * MIT Licensed\n */\n\n'use strict';\n\nvar preferredCharsets = require('./lib/charset')\nvar preferredEncodings = require('./lib/encoding')\nvar preferredLanguages = require('./lib/language')\nvar preferredMediaTypes = require('./lib/mediaType')\n\n/**\n * Module exports.\n * @public\n */\n\nmodule.exports = Negotiator;\nmodule.exports.Negotiator = Negotiator;\n\n/**\n * Create a Negotiator instance from a request.\n * @param {object} request\n * @public\n */\n\nfunction Negotiator(request) {\n if (!(this instanceof Negotiator)) {\n return new Negotiator(request);\n }\n\n this.request = request;\n}\n\nNegotiator.prototype.charset = function charset(available) {\n var set = this.charsets(available);\n return set && set[0];\n};\n\nNegotiator.prototype.charsets = function charsets(available) {\n return preferredCharsets(this.request.headers['accept-charset'], available);\n};\n\nNegotiator.prototype.encoding = function encoding(available) {\n var set = this.encodings(available);\n return set && set[0];\n};\n\nNegotiator.prototype.encodings = function encodings(available) {\n return preferredEncodings(this.request.headers['accept-encoding'], available);\n};\n\nNegotiator.prototype.language = function language(available) {\n var set = this.languages(available);\n return set && set[0];\n};\n\nNegotiator.prototype.languages = function languages(available) {\n return preferredLanguages(this.request.headers['accept-language'], available);\n};\n\nNegotiator.prototype.mediaType = function mediaType(available) {\n var set = this.mediaTypes(available);\n return set && set[0];\n};\n\nNegotiator.prototype.mediaTypes = function mediaTypes(available) {\n return preferredMediaTypes(this.request.headers.accept, available);\n};\n\n// Backwards compatibility\nNegotiator.prototype.preferredCharset = Negotiator.prototype.charset;\nNegotiator.prototype.preferredCharsets = Negotiator.prototype.charsets;\nNegotiator.prototype.preferredEncoding = Negotiator.prototype.encoding;\nNegotiator.prototype.preferredEncodings = Negotiator.prototype.encodings;\nNegotiator.prototype.preferredLanguage = Negotiator.prototype.language;\nNegotiator.prototype.preferredLanguages = Negotiator.prototype.languages;\nNegotiator.prototype.preferredMediaType = Negotiator.prototype.mediaType;\nNegotiator.prototype.preferredMediaTypes = Negotiator.prototype.mediaTypes;\n","/*!\n * accepts\n * Copyright(c) 2014 Jonathan Ong\n * Copyright(c) 2015 Douglas Christopher Wilson\n * MIT Licensed\n */\n\n'use strict'\n\n/**\n * Module dependencies.\n * @private\n */\n\nvar Negotiator = require('negotiator')\nvar mime = require('mime-types')\n\n/**\n * Module exports.\n * @public\n */\n\nmodule.exports = Accepts\n\n/**\n * Create a new Accepts object for the given req.\n *\n * @param {object} req\n * @public\n */\n\nfunction Accepts (req) {\n if (!(this instanceof Accepts)) {\n return new Accepts(req)\n }\n\n this.headers = req.headers\n this.negotiator = new Negotiator(req)\n}\n\n/**\n * Check if the given `type(s)` is acceptable, returning\n * the best match when true, otherwise `undefined`, in which\n * case you should respond with 406 \"Not Acceptable\".\n *\n * The `type` value may be a single mime type string\n * such as \"application/json\", the extension name\n * such as \"json\" or an array `[\"json\", \"html\", \"text/plain\"]`. When a list\n * or array is given the _best_ match, if any is returned.\n *\n * Examples:\n *\n * // Accept: text/html\n * this.types('html');\n * // => \"html\"\n *\n * // Accept: text/*, application/json\n * this.types('html');\n * // => \"html\"\n * this.types('text/html');\n * // => \"text/html\"\n * this.types('json', 'text');\n * // => \"json\"\n * this.types('application/json');\n * // => \"application/json\"\n *\n * // Accept: text/*, application/json\n * this.types('image/png');\n * this.types('png');\n * // => undefined\n *\n * // Accept: text/*;q=.5, application/json\n * this.types(['html', 'json']);\n * this.types('html', 'json');\n * // => \"json\"\n *\n * @param {String|Array} types...\n * @return {String|Array|Boolean}\n * @public\n */\n\nAccepts.prototype.type =\nAccepts.prototype.types = function (types_) {\n var types = types_\n\n // support flattened arguments\n if (types && !Array.isArray(types)) {\n types = new Array(arguments.length)\n for (var i = 0; i < types.length; i++) {\n types[i] = arguments[i]\n }\n }\n\n // no types, return all requested types\n if (!types || types.length === 0) {\n return this.negotiator.mediaTypes()\n }\n\n // no accept header, return first given type\n if (!this.headers.accept) {\n return types[0]\n }\n\n var mimes = types.map(extToMime)\n var accepts = this.negotiator.mediaTypes(mimes.filter(validMime))\n var first = accepts[0]\n\n return first\n ? types[mimes.indexOf(first)]\n : false\n}\n\n/**\n * Return accepted encodings or best fit based on `encodings`.\n *\n * Given `Accept-Encoding: gzip, deflate`\n * an array sorted by quality is returned:\n *\n * ['gzip', 'deflate']\n *\n * @param {String|Array} encodings...\n * @return {String|Array}\n * @public\n */\n\nAccepts.prototype.encoding =\nAccepts.prototype.encodings = function (encodings_) {\n var encodings = encodings_\n\n // support flattened arguments\n if (encodings && !Array.isArray(encodings)) {\n encodings = new Array(arguments.length)\n for (var i = 0; i < encodings.length; i++) {\n encodings[i] = arguments[i]\n }\n }\n\n // no encodings, return all requested encodings\n if (!encodings || encodings.length === 0) {\n return this.negotiator.encodings()\n }\n\n return this.negotiator.encodings(encodings)[0] || false\n}\n\n/**\n * Return accepted charsets or best fit based on `charsets`.\n *\n * Given `Accept-Charset: utf-8, iso-8859-1;q=0.2, utf-7;q=0.5`\n * an array sorted by quality is returned:\n *\n * ['utf-8', 'utf-7', 'iso-8859-1']\n *\n * @param {String|Array} charsets...\n * @return {String|Array}\n * @public\n */\n\nAccepts.prototype.charset =\nAccepts.prototype.charsets = function (charsets_) {\n var charsets = charsets_\n\n // support flattened arguments\n if (charsets && !Array.isArray(charsets)) {\n charsets = new Array(arguments.length)\n for (var i = 0; i < charsets.length; i++) {\n charsets[i] = arguments[i]\n }\n }\n\n // no charsets, return all requested charsets\n if (!charsets || charsets.length === 0) {\n return this.negotiator.charsets()\n }\n\n return this.negotiator.charsets(charsets)[0] || false\n}\n\n/**\n * Return accepted languages or best fit based on `langs`.\n *\n * Given `Accept-Language: en;q=0.8, es, pt`\n * an array sorted by quality is returned:\n *\n * ['es', 'pt', 'en']\n *\n * @param {String|Array} langs...\n * @return {Array|String}\n * @public\n */\n\nAccepts.prototype.lang =\nAccepts.prototype.langs =\nAccepts.prototype.language =\nAccepts.prototype.languages = function (languages_) {\n var languages = languages_\n\n // support flattened arguments\n if (languages && !Array.isArray(languages)) {\n languages = new Array(arguments.length)\n for (var i = 0; i < languages.length; i++) {\n languages[i] = arguments[i]\n }\n }\n\n // no languages, return all requested languages\n if (!languages || languages.length === 0) {\n return this.negotiator.languages()\n }\n\n return this.negotiator.languages(languages)[0] || false\n}\n\n/**\n * Convert extnames to mime.\n *\n * @param {String} type\n * @return {String}\n * @private\n */\n\nfunction extToMime (type) {\n return type.indexOf('/') === -1\n ? mime.lookup(type)\n : type\n}\n\n/**\n * Check if mime is valid.\n *\n * @param {String} type\n * @return {String}\n * @private\n */\n\nfunction validMime (type) {\n return typeof type === 'string'\n}\n","/*!\n * express\n * Copyright(c) 2009-2013 TJ Holowaychuk\n * Copyright(c) 2013 Roman Shtylman\n * Copyright(c) 2014-2015 Douglas Christopher Wilson\n * MIT Licensed\n */\n\n'use strict';\n\n/**\n * Module dependencies.\n * @private\n */\n\nvar accepts = require('accepts');\nvar deprecate = require('depd')('express');\nvar isIP = require('net').isIP;\nvar typeis = require('type-is');\nvar http = require('http');\nvar fresh = require('fresh');\nvar parseRange = require('range-parser');\nvar parse = require('parseurl');\nvar proxyaddr = require('proxy-addr');\n\n/**\n * Request prototype.\n * @public\n */\n\nvar req = Object.create(http.IncomingMessage.prototype)\n\n/**\n * Module exports.\n * @public\n */\n\nmodule.exports = req\n\n/**\n * Return request header.\n *\n * The `Referrer` header field is special-cased,\n * both `Referrer` and `Referer` are interchangeable.\n *\n * Examples:\n *\n * req.get('Content-Type');\n * // => \"text/plain\"\n *\n * req.get('content-type');\n * // => \"text/plain\"\n *\n * req.get('Something');\n * // => undefined\n *\n * Aliased as `req.header()`.\n *\n * @param {String} name\n * @return {String}\n * @public\n */\n\nreq.get =\nreq.header = function header(name) {\n if (!name) {\n throw new TypeError('name argument is required to req.get');\n }\n\n if (typeof name !== 'string') {\n throw new TypeError('name must be a string to req.get');\n }\n\n var lc = name.toLowerCase();\n\n switch (lc) {\n case 'referer':\n case 'referrer':\n return this.headers.referrer\n || this.headers.referer;\n default:\n return this.headers[lc];\n }\n};\n\n/**\n * To do: update docs.\n *\n * Check if the given `type(s)` is acceptable, returning\n * the best match when true, otherwise `undefined`, in which\n * case you should respond with 406 \"Not Acceptable\".\n *\n * The `type` value may be a single MIME type string\n * such as \"application/json\", an extension name\n * such as \"json\", a comma-delimited list such as \"json, html, text/plain\",\n * an argument list such as `\"json\", \"html\", \"text/plain\"`,\n * or an array `[\"json\", \"html\", \"text/plain\"]`. When a list\n * or array is given, the _best_ match, if any is returned.\n *\n * Examples:\n *\n * // Accept: text/html\n * req.accepts('html');\n * // => \"html\"\n *\n * // Accept: text/*, application/json\n * req.accepts('html');\n * // => \"html\"\n * req.accepts('text/html');\n * // => \"text/html\"\n * req.accepts('json, text');\n * // => \"json\"\n * req.accepts('application/json');\n * // => \"application/json\"\n *\n * // Accept: text/*, application/json\n * req.accepts('image/png');\n * req.accepts('png');\n * // => undefined\n *\n * // Accept: text/*;q=.5, application/json\n * req.accepts(['html', 'json']);\n * req.accepts('html', 'json');\n * req.accepts('html, json');\n * // => \"json\"\n *\n * @param {String|Array} type(s)\n * @return {String|Array|Boolean}\n * @public\n */\n\nreq.accepts = function(){\n var accept = accepts(this);\n return accept.types.apply(accept, arguments);\n};\n\n/**\n * Check if the given `encoding`s are accepted.\n *\n * @param {String} ...encoding\n * @return {String|Array}\n * @public\n */\n\nreq.acceptsEncodings = function(){\n var accept = accepts(this);\n return accept.encodings.apply(accept, arguments);\n};\n\nreq.acceptsEncoding = deprecate.function(req.acceptsEncodings,\n 'req.acceptsEncoding: Use acceptsEncodings instead');\n\n/**\n * Check if the given `charset`s are acceptable,\n * otherwise you should respond with 406 \"Not Acceptable\".\n *\n * @param {String} ...charset\n * @return {String|Array}\n * @public\n */\n\nreq.acceptsCharsets = function(){\n var accept = accepts(this);\n return accept.charsets.apply(accept, arguments);\n};\n\nreq.acceptsCharset = deprecate.function(req.acceptsCharsets,\n 'req.acceptsCharset: Use acceptsCharsets instead');\n\n/**\n * Check if the given `lang`s are acceptable,\n * otherwise you should respond with 406 \"Not Acceptable\".\n *\n * @param {String} ...lang\n * @return {String|Array}\n * @public\n */\n\nreq.acceptsLanguages = function(){\n var accept = accepts(this);\n return accept.languages.apply(accept, arguments);\n};\n\nreq.acceptsLanguage = deprecate.function(req.acceptsLanguages,\n 'req.acceptsLanguage: Use acceptsLanguages instead');\n\n/**\n * Parse Range header field, capping to the given `size`.\n *\n * Unspecified ranges such as \"0-\" require knowledge of your resource length. In\n * the case of a byte range this is of course the total number of bytes. If the\n * Range header field is not given `undefined` is returned, `-1` when unsatisfiable,\n * and `-2` when syntactically invalid.\n *\n * When ranges are returned, the array has a \"type\" property which is the type of\n * range that is required (most commonly, \"bytes\"). Each array element is an object\n * with a \"start\" and \"end\" property for the portion of the range.\n *\n * The \"combine\" option can be set to `true` and overlapping & adjacent ranges\n * will be combined into a single range.\n *\n * NOTE: remember that ranges are inclusive, so for example \"Range: users=0-3\"\n * should respond with 4 users when available, not 3.\n *\n * @param {number} size\n * @param {object} [options]\n * @param {boolean} [options.combine=false]\n * @return {number|array}\n * @public\n */\n\nreq.range = function range(size, options) {\n var range = this.get('Range');\n if (!range) return;\n return parseRange(size, range, options);\n};\n\n/**\n * Return the value of param `name` when present or `defaultValue`.\n *\n * - Checks route placeholders, ex: _/user/:id_\n * - Checks body params, ex: id=12, {\"id\":12}\n * - Checks query string params, ex: ?id=12\n *\n * To utilize request bodies, `req.body`\n * should be an object. This can be done by using\n * the `bodyParser()` middleware.\n *\n * @param {String} name\n * @param {Mixed} [defaultValue]\n * @return {String}\n * @public\n */\n\nreq.param = function param(name, defaultValue) {\n var params = this.params || {};\n var body = this.body || {};\n var query = this.query || {};\n\n var args = arguments.length === 1\n ? 'name'\n : 'name, default';\n deprecate('req.param(' + args + '): Use req.params, req.body, or req.query instead');\n\n if (null != params[name] && params.hasOwnProperty(name)) return params[name];\n if (null != body[name]) return body[name];\n if (null != query[name]) return query[name];\n\n return defaultValue;\n};\n\n/**\n * Check if the incoming request contains the \"Content-Type\"\n * header field, and it contains the given mime `type`.\n *\n * Examples:\n *\n * // With Content-Type: text/html; charset=utf-8\n * req.is('html');\n * req.is('text/html');\n * req.is('text/*');\n * // => true\n *\n * // When Content-Type is application/json\n * req.is('json');\n * req.is('application/json');\n * req.is('application/*');\n * // => true\n *\n * req.is('html');\n * // => false\n *\n * @param {String|Array} types...\n * @return {String|false|null}\n * @public\n */\n\nreq.is = function is(types) {\n var arr = types;\n\n // support flattened arguments\n if (!Array.isArray(types)) {\n arr = new Array(arguments.length);\n for (var i = 0; i < arr.length; i++) {\n arr[i] = arguments[i];\n }\n }\n\n return typeis(this, arr);\n};\n\n/**\n * Return the protocol string \"http\" or \"https\"\n * when requested with TLS. When the \"trust proxy\"\n * setting trusts the socket address, the\n * \"X-Forwarded-Proto\" header field will be trusted\n * and used if present.\n *\n * If you're running behind a reverse proxy that\n * supplies https for you this may be enabled.\n *\n * @return {String}\n * @public\n */\n\ndefineGetter(req, 'protocol', function protocol(){\n var proto = this.connection.encrypted\n ? 'https'\n : 'http';\n var trust = this.app.get('trust proxy fn');\n\n if (!trust(this.connection.remoteAddress, 0)) {\n return proto;\n }\n\n // Note: X-Forwarded-Proto is normally only ever a\n // single value, but this is to be safe.\n var header = this.get('X-Forwarded-Proto') || proto\n var index = header.indexOf(',')\n\n return index !== -1\n ? header.substring(0, index).trim()\n : header.trim()\n});\n\n/**\n * Short-hand for:\n *\n * req.protocol === 'https'\n *\n * @return {Boolean}\n * @public\n */\n\ndefineGetter(req, 'secure', function secure(){\n return this.protocol === 'https';\n});\n\n/**\n * Return the remote address from the trusted proxy.\n *\n * The is the remote address on the socket unless\n * \"trust proxy\" is set.\n *\n * @return {String}\n * @public\n */\n\ndefineGetter(req, 'ip', function ip(){\n var trust = this.app.get('trust proxy fn');\n return proxyaddr(this, trust);\n});\n\n/**\n * When \"trust proxy\" is set, trusted proxy addresses + client.\n *\n * For example if the value were \"client, proxy1, proxy2\"\n * you would receive the array `[\"client\", \"proxy1\", \"proxy2\"]`\n * where \"proxy2\" is the furthest down-stream and \"proxy1\" and\n * \"proxy2\" were trusted.\n *\n * @return {Array}\n * @public\n */\n\ndefineGetter(req, 'ips', function ips() {\n var trust = this.app.get('trust proxy fn');\n var addrs = proxyaddr.all(this, trust);\n\n // reverse the order (to farthest -> closest)\n // and remove socket address\n addrs.reverse().pop()\n\n return addrs\n});\n\n/**\n * Return subdomains as an array.\n *\n * Subdomains are the dot-separated parts of the host before the main domain of\n * the app. By default, the domain of the app is assumed to be the last two\n * parts of the host. This can be changed by setting \"subdomain offset\".\n *\n * For example, if the domain is \"tobi.ferrets.example.com\":\n * If \"subdomain offset\" is not set, req.subdomains is `[\"ferrets\", \"tobi\"]`.\n * If \"subdomain offset\" is 3, req.subdomains is `[\"tobi\"]`.\n *\n * @return {Array}\n * @public\n */\n\ndefineGetter(req, 'subdomains', function subdomains() {\n var hostname = this.hostname;\n\n if (!hostname) return [];\n\n var offset = this.app.get('subdomain offset');\n var subdomains = !isIP(hostname)\n ? hostname.split('.').reverse()\n : [hostname];\n\n return subdomains.slice(offset);\n});\n\n/**\n * Short-hand for `url.parse(req.url).pathname`.\n *\n * @return {String}\n * @public\n */\n\ndefineGetter(req, 'path', function path() {\n return parse(this).pathname;\n});\n\n/**\n * Parse the \"Host\" header field to a hostname.\n *\n * When the \"trust proxy\" setting trusts the socket\n * address, the \"X-Forwarded-Host\" header field will\n * be trusted.\n *\n * @return {String}\n * @public\n */\n\ndefineGetter(req, 'hostname', function hostname(){\n var trust = this.app.get('trust proxy fn');\n var host = this.get('X-Forwarded-Host');\n\n if (!host || !trust(this.connection.remoteAddress, 0)) {\n host = this.get('Host');\n } else if (host.indexOf(',') !== -1) {\n // Note: X-Forwarded-Host is normally only ever a\n // single value, but this is to be safe.\n host = host.substring(0, host.indexOf(',')).trimRight()\n }\n\n if (!host) return;\n\n // IPv6 literal support\n var offset = host[0] === '['\n ? host.indexOf(']') + 1\n : 0;\n var index = host.indexOf(':', offset);\n\n return index !== -1\n ? host.substring(0, index)\n : host;\n});\n\n// TODO: change req.host to return host in next major\n\ndefineGetter(req, 'host', deprecate.function(function host(){\n return this.hostname;\n}, 'req.host: Use req.hostname instead'));\n\n/**\n * Check if the request is fresh, aka\n * Last-Modified and/or the ETag\n * still match.\n *\n * @return {Boolean}\n * @public\n */\n\ndefineGetter(req, 'fresh', function(){\n var method = this.method;\n var res = this.res\n var status = res.statusCode\n\n // GET or HEAD for weak freshness validation only\n if ('GET' !== method && 'HEAD' !== method) return false;\n\n // 2xx or 304 as per rfc2616 14.26\n if ((status >= 200 && status < 300) || 304 === status) {\n return fresh(this.headers, {\n 'etag': res.get('ETag'),\n 'last-modified': res.get('Last-Modified')\n })\n }\n\n return false;\n});\n\n/**\n * Check if the request is stale, aka\n * \"Last-Modified\" and / or the \"ETag\" for the\n * resource has changed.\n *\n * @return {Boolean}\n * @public\n */\n\ndefineGetter(req, 'stale', function stale(){\n return !this.fresh;\n});\n\n/**\n * Check if the request was an _XMLHttpRequest_.\n *\n * @return {Boolean}\n * @public\n */\n\ndefineGetter(req, 'xhr', function xhr(){\n var val = this.get('X-Requested-With') || '';\n return val.toLowerCase() === 'xmlhttprequest';\n});\n\n/**\n * Helper function for creating a getter on an object.\n *\n * @param {Object} obj\n * @param {String} name\n * @param {Function} getter\n * @private\n */\nfunction defineGetter(obj, name, getter) {\n Object.defineProperty(obj, name, {\n configurable: true,\n enumerable: true,\n get: getter\n });\n}\n","/**\n * Module dependencies.\n */\n\nvar crypto = require('crypto');\n\n/**\n * Sign the given `val` with `secret`.\n *\n * @param {String} val\n * @param {String} secret\n * @return {String}\n * @api private\n */\n\nexports.sign = function(val, secret){\n if ('string' != typeof val) throw new TypeError(\"Cookie value must be provided as a string.\");\n if ('string' != typeof secret) throw new TypeError(\"Secret string must be provided.\");\n return val + '.' + crypto\n .createHmac('sha256', secret)\n .update(val)\n .digest('base64')\n .replace(/\\=+$/, '');\n};\n\n/**\n * Unsign and decode the given `val` with `secret`,\n * returning `false` if the signature is invalid.\n *\n * @param {String} val\n * @param {String} secret\n * @return {String|Boolean}\n * @api private\n */\n\nexports.unsign = function(val, secret){\n if ('string' != typeof val) throw new TypeError(\"Signed cookie string must be provided.\");\n if ('string' != typeof secret) throw new TypeError(\"Secret string must be provided.\");\n var str = val.slice(0, val.lastIndexOf('.'))\n , mac = exports.sign(str, secret);\n \n return sha1(mac) == sha1(val) ? str : false;\n};\n\n/**\n * Private\n */\n\nfunction sha1(str){\n return crypto.createHash('sha1').update(str).digest('hex');\n}\n","/*!\n * cookie\n * Copyright(c) 2012-2014 Roman Shtylman\n * Copyright(c) 2015 Douglas Christopher Wilson\n * MIT Licensed\n */\n\n'use strict';\n\n/**\n * Module exports.\n * @public\n */\n\nexports.parse = parse;\nexports.serialize = serialize;\n\n/**\n * Module variables.\n * @private\n */\n\nvar __toString = Object.prototype.toString\n\n/**\n * RegExp to match cookie-name in RFC 6265 sec 4.1.1\n * This refers out to the obsoleted definition of token in RFC 2616 sec 2.2\n * which has been replaced by the token definition in RFC 7230 appendix B.\n *\n * cookie-name = token\n * token = 1*tchar\n * tchar = \"!\" / \"#\" / \"$\" / \"%\" / \"&\" / \"'\" /\n * \"*\" / \"+\" / \"-\" / \".\" / \"^\" / \"_\" /\n * \"`\" / \"|\" / \"~\" / DIGIT / ALPHA\n */\n\nvar cookieNameRegExp = /^[!#$%&'*+\\-.^_`|~0-9A-Za-z]+$/;\n\n/**\n * RegExp to match cookie-value in RFC 6265 sec 4.1.1\n *\n * cookie-value = *cookie-octet / ( DQUOTE *cookie-octet DQUOTE )\n * cookie-octet = %x21 / %x23-2B / %x2D-3A / %x3C-5B / %x5D-7E\n * ; US-ASCII characters excluding CTLs,\n * ; whitespace DQUOTE, comma, semicolon,\n * ; and backslash\n */\n\nvar cookieValueRegExp = /^(\"?)[\\u0021\\u0023-\\u002B\\u002D-\\u003A\\u003C-\\u005B\\u005D-\\u007E]*\\1$/;\n\n/**\n * RegExp to match domain-value in RFC 6265 sec 4.1.1\n *\n * domain-value = \n * ; defined in [RFC1034], Section 3.5, as\n * ; enhanced by [RFC1123], Section 2.1\n * =