{"version":3,"file":"index.mjs","sources":["../../../../src/strapi/providers/remote-destination/index.ts"],"sourcesContent":["import { createHash, randomUUID } from 'crypto';\nimport { Writable } from 'stream';\nimport { WebSocket } from 'ws';\nimport { once } from 'lodash/fp';\nimport type { Struct, Utils } from '@strapi/types';\n\nimport { createDispatcher, connectToWebsocket, trimTrailingSlash } from '../utils';\n\nimport type {\n IDestinationProvider,\n IMetadata,\n ProviderType,\n IAsset,\n TransferStage,\n Protocol,\n} from '../../../../types';\nimport type { IDiagnosticReporter } from '../../../utils/diagnostic';\nimport type { Client, Server, Auth } from '../../../../types/remote/protocol';\nimport type { ILocalStrapiDestinationProviderOptions } from '../local-destination';\nimport { TRANSFER_PATH } from '../../remote/constants';\nimport { ProviderTransferError, ProviderValidationError } from '../../../errors/providers';\nimport {\n createTransferAssetStreamChunk,\n transferAssetStreamChunkByteLength,\n} from '../../../utils/transfer-asset-chunk';\n\nexport interface IRemoteStrapiDestinationProviderOptions\n extends Pick {\n url: URL; // the url of the remote Strapi admin\n auth?: Auth.ITransferTokenAuth;\n retryMessageOptions?: {\n retryMessageTimeout: number; // milliseconds to wait for a response from a message\n retryMessageMaxRetries: number; // max number of retries for a message before aborting transfer\n };\n /** Include per-asset stream checksums and require peers to validate on receive. */\n verifyChecksums?: boolean;\n}\n\nconst jsonLength = (obj: object) => Buffer.byteLength(JSON.stringify(obj));\n\n/**\n * Default batching for entities / links / configuration over WebSocket push.\n *\n * Goals: (1) enough payload per round-trip to stay efficient on large transfers,\n * (2) small enough per message that the remote can process and ack without multi-minute stalls,\n * (3) bounded gap between engine progress and the wire (see item cap + age).\n *\n * These are fixed defaults (not tuned per dataset) so behavior is predictable everywhere.\n */\nconst STREAM_STEP_MAX_BATCH_BYTES = 512 * 1024;\n\n/** Caps parallel work per message and how far UI count can lead the network for tiny rows. */\nconst STREAM_STEP_MAX_BATCH_ITEMS = 100;\n\n/**\n * If the first row in the current batch has waited this long, flush before appending more.\n * Helps mixed-size streams (e.g. occasional large rows) without relying on tiny byte caps alone.\n */\nconst STREAM_STEP_MAX_BATCH_AGE_MS = 450;\n\nclass RemoteStrapiDestinationProvider implements IDestinationProvider {\n name = 'destination::remote-strapi';\n\n type: ProviderType = 'destination';\n\n options: IRemoteStrapiDestinationProviderOptions;\n\n ws: WebSocket | null;\n\n dispatcher: ReturnType | null;\n\n transferID: string | null;\n\n stats!: { [TStage in Exclude]: { count: number } };\n\n #diagnostics?: IDiagnosticReporter;\n\n #checksumsEnabled = false;\n\n constructor(options: IRemoteStrapiDestinationProviderOptions) {\n this.options = options;\n this.ws = null;\n this.dispatcher = null;\n this.transferID = null;\n this.#checksumsEnabled = options.verifyChecksums === true;\n\n this.resetStats();\n }\n\n private resetStats() {\n this.stats = {\n assets: { count: 0 },\n entities: { count: 0 },\n links: { count: 0 },\n configuration: { count: 0 },\n };\n }\n\n async initTransfer(): Promise {\n const { strategy, restore } = this.options;\n const wantsChecksums = this.options.verifyChecksums === true;\n\n const query = this.dispatcher?.dispatchCommand({\n command: 'init',\n params: {\n options: { strategy, restore },\n transfer: 'push',\n ...(wantsChecksums ? { checksums: true } : {}),\n },\n });\n\n const res = (await query) as\n | (Server.Payload & { checksums?: boolean })\n | null;\n if (!res?.transferID) {\n throw new ProviderTransferError('Init failed, invalid response from the server');\n }\n this.#checksumsEnabled = wantsChecksums && res.checksums === true;\n if (wantsChecksums && res.checksums !== true) {\n this.#reportWarning(\n '[Data transfer][push] Checksums were requested but the remote does not support checksum negotiation; continuing without checksum validation.'\n );\n }\n\n this.resetStats();\n\n return res.transferID;\n }\n\n #startStepOnce(stage: Client.TransferPushStep) {\n return once(() => this.#startStep(stage));\n }\n\n async #startStep(step: T) {\n try {\n await this.dispatcher?.dispatchTransferStep({ action: 'start', step });\n } catch (e) {\n if (e instanceof Error) {\n return e;\n }\n\n if (typeof e === 'string') {\n return new ProviderTransferError(e);\n }\n\n return new ProviderTransferError('Unexpected error');\n }\n\n this.stats[step] = { count: 0 };\n\n return null;\n }\n\n async #endStep(step: T) {\n try {\n const res = await this.dispatcher?.dispatchTransferStep<{\n ok: boolean;\n stats: Protocol.Client.Stats;\n }>({\n action: 'end',\n step,\n });\n\n return { stats: res?.stats ?? null, error: null };\n } catch (e) {\n if (e instanceof Error) {\n return { stats: null, error: e };\n }\n\n if (typeof e === 'string') {\n return { stats: null, error: new ProviderTransferError(e) };\n }\n\n return { stats: null, error: new ProviderTransferError('Unexpected error') };\n }\n }\n\n async #streamStep(\n step: T,\n message: Client.GetTransferPushStreamData\n ) {\n try {\n if (step === 'assets') {\n const assetMessage = message as Protocol.Client.TransferAssetFlow[];\n this.stats[step].count += assetMessage.filter((data) => data.action === 'start').length;\n } else {\n this.stats[step].count += message.length;\n }\n\n await this.dispatcher?.dispatchTransferStep({ action: 'stream', step, data: message });\n } catch (e) {\n if (e instanceof Error) {\n return e;\n }\n\n if (typeof e === 'string') {\n return new ProviderTransferError(e);\n }\n\n return new ProviderTransferError('Unexpected error');\n }\n\n return null;\n }\n\n #writeStream(step: Exclude): Writable {\n type Step = typeof step;\n\n const startTransferOnce = this.#startStepOnce(step);\n\n let batch = [] as Client.GetTransferPushStreamData;\n let batchStartedAt = 0;\n\n const batchLength = () => jsonLength(batch);\n\n const flushBatch = async (): Promise => {\n if (batch.length === 0) {\n return null;\n }\n const payload = batch;\n batch = [];\n batchStartedAt = 0;\n return this.#streamStep(step, payload);\n };\n\n const shouldFlushBatchAfterPush = () => {\n if (batch.length === 0) {\n return false;\n }\n return (\n batchLength() >= STREAM_STEP_MAX_BATCH_BYTES ||\n batch.length >= STREAM_STEP_MAX_BATCH_ITEMS ||\n Date.now() - batchStartedAt >= STREAM_STEP_MAX_BATCH_AGE_MS\n );\n };\n\n return new Writable({\n objectMode: true,\n\n final: async (callback) => {\n if (batch.length > 0) {\n const streamError = await flushBatch();\n\n if (streamError) {\n return callback(streamError);\n }\n }\n const { error, stats } = await this.#endStep(step);\n\n const { count } = this.stats[step];\n\n if (stats && (stats.started !== count || stats.finished !== count)) {\n callback(\n new Error(\n `Data missing: sent ${this.stats[step].count} ${step}, received ${stats.started} and saved ${stats.finished} ${step}`\n )\n );\n }\n\n callback(error);\n },\n\n async write(chunk, _encoding, callback) {\n const startError = await startTransferOnce();\n if (startError) {\n return callback(startError);\n }\n\n // Flush a batch that has sat long enough before growing it further (bounded latency).\n if (batch.length > 0 && Date.now() - batchStartedAt >= STREAM_STEP_MAX_BATCH_AGE_MS) {\n const staleError = await flushBatch();\n if (staleError) {\n return callback(staleError);\n }\n }\n\n batch.push(chunk);\n if (batch.length === 1) {\n batchStartedAt = Date.now();\n }\n\n if (shouldFlushBatchAfterPush()) {\n const streamError = await flushBatch();\n if (streamError) {\n return callback(streamError);\n }\n }\n\n callback();\n },\n });\n }\n\n #reportInfo(message: string) {\n this.#diagnostics?.report({\n details: {\n createdAt: new Date(),\n message,\n origin: 'remote-destination-provider',\n },\n kind: 'info',\n });\n }\n\n #reportWarning(message: string) {\n this.#diagnostics?.report({\n details: {\n createdAt: new Date(),\n message,\n origin: 'remote-destination-provider',\n },\n kind: 'warning',\n });\n }\n\n async bootstrap(diagnostics?: IDiagnosticReporter): Promise {\n this.#diagnostics = diagnostics;\n const { url, auth } = this.options;\n const validProtocols = ['https:', 'http:'];\n\n let ws: WebSocket;\n\n if (!validProtocols.includes(url.protocol)) {\n throw new ProviderValidationError(`Invalid protocol \"${url.protocol}\"`, {\n check: 'url',\n details: {\n protocol: url.protocol,\n validProtocols,\n },\n });\n }\n const wsProtocol = url.protocol === 'https:' ? 'wss:' : 'ws:';\n const wsUrl = `${wsProtocol}//${url.host}${trimTrailingSlash(\n url.pathname\n )}${TRANSFER_PATH}/push`;\n\n this.#reportInfo('establishing websocket connection');\n // No auth defined, trying public access for transfer\n if (!auth) {\n ws = await connectToWebsocket(wsUrl, undefined, this.#diagnostics);\n }\n\n // Common token auth, this should be the main auth method\n else if (auth.type === 'token') {\n const headers = { Authorization: `Bearer ${auth.token}` };\n ws = await connectToWebsocket(wsUrl, { headers }, this.#diagnostics);\n }\n\n // Invalid auth method provided\n else {\n throw new ProviderValidationError('Auth method not available', {\n check: 'auth.type',\n details: {\n auth: auth.type,\n },\n });\n }\n\n this.#reportInfo('established websocket connection');\n\n this.ws = ws;\n const { retryMessageOptions } = this.options;\n\n this.#reportInfo('creating dispatcher');\n this.dispatcher = createDispatcher(this.ws, retryMessageOptions, (message: string) =>\n this.#reportInfo(message)\n );\n this.#reportInfo('created dispatcher');\n\n this.#reportInfo('initialize transfer');\n this.transferID = await this.initTransfer();\n this.#reportInfo(`initialized transfer ${this.transferID}`);\n\n this.dispatcher.setTransferProperties({ id: this.transferID, kind: 'push' });\n\n await this.dispatcher.dispatchTransferAction('bootstrap');\n }\n\n async close() {\n // Gracefully close the remote transfer process\n if (this.transferID && this.dispatcher) {\n await this.dispatcher.dispatchTransferAction('close');\n\n await this.dispatcher.dispatchCommand({\n command: 'end',\n params: { transferID: this.transferID },\n });\n }\n\n await new Promise((resolve) => {\n const { ws } = this;\n\n if (!ws || ws.CLOSED) {\n resolve();\n return;\n }\n\n ws.on('close', () => resolve()).close();\n });\n }\n\n getMetadata() {\n return this.dispatcher?.dispatchTransferAction('getMetadata') ?? null;\n }\n\n async beforeTransfer() {\n this.options.onTransferPhase?.(\n 'Remote: waiting for server to clear data and prepare destination…'\n );\n await this.dispatcher?.dispatchTransferAction('beforeTransfer');\n }\n\n async rollback() {\n await this.dispatcher?.dispatchTransferAction('rollback');\n }\n\n getSchemas() {\n if (!this.dispatcher) {\n return Promise.resolve(null);\n }\n\n return this.dispatcher.dispatchTransferAction>('getSchemas');\n }\n\n createEntitiesWriteStream(): Writable {\n return this.#writeStream('entities');\n }\n\n createLinksWriteStream(): Writable {\n return this.#writeStream('links');\n }\n\n createConfigurationWriteStream(): Writable {\n return this.#writeStream('configuration');\n }\n\n createAssetsWriteStream(): Writable | Promise {\n let batch: Client.TransferAssetFlow[] = [];\n let hasStarted = false;\n const verifyChecksums = this.#checksumsEnabled;\n\n const batchSize = 1024 * 1024; // 1MB;\n const batchLength = () => {\n return batch.reduce((acc, chunk) => acc + transferAssetStreamChunkByteLength(chunk), 0);\n };\n 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