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All rights reserved.\n// Licensed to the Readium Foundation under one or more contributor license agreements.\n// Use of this source code is governed by a BSD-style license\n// that can be found in the LICENSE file exposed on Github (readium) in the project repository.\n// ==LICENSE-END==\n\nimport * as debug_ from \"debug\";\nimport * as request from \"request\";\nimport * as requestPromise from \"request-promise-native\";\nimport { PassThrough } from \"stream\";\nimport { URL } from \"url\";\n\nimport { IStreamAndLength, IZip, Zip } from \"./zip\";\n\n// import { bufferToStream } from \"../stream/BufferUtils\";\n\nconst debug = debug_(\"r2:utils#zip/zip-ex-http\");\n\nexport class ZipExplodedHTTP extends Zip {\n\n public static async loadPromise(urlStr: string): Promise<IZip> {\n return Promise.resolve(new ZipExplodedHTTP(urlStr));\n }\n\n // private readonly url: URL;\n\n private constructor(readonly urlStr: string) {\n super();\n debug(`ZipExplodedHTTP: ${urlStr}`);\n // this.url = new URL(urlStr);\n }\n\n public freeDestroy(): void {\n debug(\"freeDestroy: ZipExplodedHTTP -- \" + this.urlStr);\n }\n\n public entriesCount(): number {\n return 0; // TODO: hacky! (not really needed ... but still)\n }\n\n public hasEntries(): boolean {\n return true; // TODO: hacky\n }\n\n public hasEntry(_entryPath: string): boolean {\n return true;\n }\n\n public async hasEntryAsync(entryPath: string): Promise<boolean> {\n\n debug(`hasEntryAsync: ${entryPath}`);\n\n const url = new URL(this.urlStr);\n // url.pathname += (\"/\" + entryPath);\n url.pathname += entryPath;\n const urlStrEntry = url.toString();\n debug(\"urlStrEntry: \", urlStrEntry);\n\n return new Promise(async (topresolve, _topreject) => {\n\n // eslint-disable-next-line @typescript-eslint/no-explicit-any\n const failure = async (err: any) => {\n debug(err);\n // topreject(err);\n topresolve(false);\n };\n\n const success = async (response: request.RequestResponse) => {\n\n // Object.keys(response.headers).forEach((header: string) => {\n // debug(header + \" => \" + response.headers[header]);\n // });\n\n // debug(response);\n // debug(response.body);\n\n if (response.statusCode && (response.statusCode < 200 || response.statusCode >= 300)) {\n // await failure(\"HTTP CODE \" + response.statusCode);\n topresolve(false);\n return;\n }\n\n topresolve(true);\n };\n\n // No response streaming! 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:(\n // https://github.com/request/request-promise/issues/90\n const needsStreamingResponse = true;\n\n if (needsStreamingResponse) {\n const promise = new Promise<void>((resolve, reject) => {\n request.get({\n headers: {},\n method: \"GET\",\n uri: urlStrEntry,\n })\n .on(\"response\", async (response: request.RequestResponse) => {\n try {\n await success(response);\n }\n catch (successError) {\n await failure(successError);\n return;\n }\n resolve();\n })\n // eslint-disable-next-line @typescript-eslint/no-explicit-any\n .on(\"error\", async (err: any) => {\n await failure(err);\n reject();\n });\n });\n try {\n await promise;\n } catch (_err) {\n // ignore\n }\n } else {\n let response: requestPromise.FullResponse;\n try {\n // tslint:disable-next-line:await-promise no-floating-promises\n response = await requestPromise({\n headers: {},\n method: \"GET\",\n resolveWithFullResponse: true,\n uri: urlStrEntry,\n });\n await success(response);\n } catch (err) {\n await failure(err);\n }\n }\n });\n }\n}\n"]} |