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==LICENSE-BEGIN==\n// Copyright 2017 European Digital Reading Lab. 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\";\n\nimport { streamToBufferPromise } from \"@r2-utils-js/_utils/stream/BufferUtils\";\n\nimport { LCP } from \"../parser/epub/lcp\";\nimport { LSD, StatusEnum } from \"../parser/epub/lsd\";\nimport { TaJsonDeserialize } from \"../serializable\";\nimport { IDeviceIDManager } from \"./deviceid-manager\";\nimport { lsdLcpUpdate } from \"./lcpl-update\";\nimport { lsdRegister_ } from \"./register\";\n\nconst debug = debug_(\"r2:lcp#lsd/status-document-processing\");\n\nconst IS_DEV = (process.env.NODE_ENV === \"development\" || process.env.NODE_ENV === \"dev\");\n\nexport async function launchStatusDocumentProcessing(\n lcp: LCP,\n deviceIDManager: IDeviceIDManager,\n onStatusDocumentProcessingComplete: (licenseUpdateJson: string | undefined) => void,\n httpHeaders?: { [key: string]: string; }) {\n\n if (!lcp || !lcp.Links) {\n if (onStatusDocumentProcessingComplete) {\n onStatusDocumentProcessingComplete(undefined);\n }\n return;\n }\n const linkStatus = lcp.Links.find((link) => {\n return link.Rel === \"status\";\n });\n if (!linkStatus) {\n if (onStatusDocumentProcessingComplete) {\n onStatusDocumentProcessingComplete(undefined);\n }\n return;\n }\n\n if (IS_DEV) {\n debug(linkStatus);\n }\n\n // eslint-disable-next-line @typescript-eslint/no-explicit-any\n const failure = (err: any) => {\n debug(err);\n if (onStatusDocumentProcessingComplete) {\n onStatusDocumentProcessingComplete(undefined);\n }\n };\n\n const success = async (response: request.RequestResponse) => {\n\n if (IS_DEV) {\n Object.keys(response.headers).forEach((header: string) => {\n debug(header + \" => \" + response.headers[header]);\n });\n }\n\n if (response.statusCode && (response.statusCode < 200 || response.statusCode >= 300)) {\n let failBuff: Buffer;\n try {\n failBuff = await streamToBufferPromise(response);\n } catch (buffErr) {\n if (IS_DEV) {\n debug(buffErr);\n }\n failure(response.statusCode);\n return;\n }\n try {\n const failStr = failBuff.toString(\"utf8\");\n if (IS_DEV) {\n debug(failStr);\n }\n try {\n const failJson = global.JSON.parse(failStr);\n if (IS_DEV) {\n debug(failJson);\n }\n failJson.httpStatusCode = response.statusCode;\n failure(failJson);\n } catch (jsonErr) {\n if (IS_DEV) {\n debug(jsonErr);\n }\n failure({ httpStatusCode: response.statusCode, httpResponseBody: failStr });\n }\n } catch (strErr) {\n if (IS_DEV) {\n debug(strErr);\n }\n failure(response.statusCode);\n }\n return;\n }\n\n let responseData: Buffer;\n try {\n responseData = await streamToBufferPromise(response);\n } catch (err) {\n debug(err);\n if (onStatusDocumentProcessingComplete) {\n onStatusDocumentProcessingComplete(undefined);\n }\n return;\n }\n const responseStr = responseData.toString(\"utf8\");\n\n // https://github.com/readium/readium-lcp-specs/issues/15#issuecomment-358247286\n // application/vnd.readium.lcp.license-1.0+json (LEGACY)\n // application/vnd.readium.lcp.license.v1.0+json (NEW)\n // application/vnd.readium.license.status.v1.0+json (LSD)\n const mime = \"application/vnd.readium.license.status.v1.0+json\";\n if (IS_DEV) {\n if (response.headers[\"content-type\"] === mime ||\n response.headers[\"content-type\"] === \"application/json\") {\n debug(responseStr);\n }\n }\n const lsdJSON = global.JSON.parse(responseStr);\n if (IS_DEV) {\n debug(lsdJSON);\n }\n\n try {\n lcp.LSD = TaJsonDeserialize<LSD>(lsdJSON, LSD);\n if (IS_DEV) {\n debug(lcp.LSD);\n }\n } catch (err) {\n debug(err);\n if (onStatusDocumentProcessingComplete) {\n onStatusDocumentProcessingComplete(undefined);\n }\n return;\n }\n\n // debug(lsdJson.id);\n // debug(lsdJson.status); // revoked, returned, cancelled, expired\n // debug(lsdJson.message);\n // if (lsdJson.updated) {\n // debug(lsdJson.updated.license);\n // debug(lsdJson.updated.status);\n // }\n // if (lsdJson.links) {\n // lsdJson.links.forEach((link: any) => {\n // debug(link.rel); // license, register, return, renew\n // debug(link.href);\n // debug(link.type);\n // debug(link.templated);\n // debug(link.title);\n // debug(link.profile);\n // });\n // }\n // if (lsdJson.potential_rights) {\n // debug(lsdJson.potential_rights.end);\n // }\n // if (lsdJson.events) {\n // lsdJson.events.forEach((event: any) => {\n // debug(event.type);\n // debug(event.name);\n // debug(event.timestamp); // ISO 8601 time and date\n // debug(event.id);\n // });\n // }\n\n let licenseUpdateResponseJson: string | undefined;\n try {\n licenseUpdateResponseJson = await lsdLcpUpdate(lcp, httpHeaders);\n } catch (err) {\n debug(err);\n // if (onStatusDocumentProcessingComplete) {\n // onStatusDocumentProcessingComplete();\n // }\n // return;\n }\n if (licenseUpdateResponseJson) {\n if (onStatusDocumentProcessingComplete) {\n onStatusDocumentProcessingComplete(licenseUpdateResponseJson);\n }\n return;\n }\n\n // lcp.LSD.Status !== StatusEnum.Active && lcp.LSD.Status !== StatusEnum.Ready\n if (lcp.LSD.Status === StatusEnum.Revoked\n || lcp.LSD.Status === StatusEnum.Returned\n || lcp.LSD.Status === StatusEnum.Cancelled\n || lcp.LSD.Status === StatusEnum.Expired) {\n\n debug(\"What?! LSD status:\" + lcp.LSD.Status);\n // This should really never happen,\n // as the LCP license should not even have passed validation\n // due to expired end date / timestamp\n if (onStatusDocumentProcessingComplete) {\n onStatusDocumentProcessingComplete(undefined);\n }\n return;\n }\n\n // eslint-disable-next-line @typescript-eslint/no-explicit-any\n let registerResponse: any;\n try {\n registerResponse = await lsdRegister_(lcp.LSD, deviceIDManager, httpHeaders);\n } catch (err) {\n debug(err);\n }\n if (registerResponse) {\n lcp.LSD = registerResponse;\n if (IS_DEV) {\n debug(lcp.LSD);\n }\n }\n if (onStatusDocumentProcessingComplete) {\n onStatusDocumentProcessingComplete(undefined);\n }\n };\n\n const headers = Object.assign({\n \"Accept\": \"application/json,application/xml\",\n \"Accept-Language\": \"en-UK,en-US;q=0.7,en;q=0.5\",\n \"User-Agent\": \"Readium2-LCP\",\n }, httpHeaders ? httpHeaders : {});\n\n // No response streaming! :(\n // https://github.com/request/request-promise/issues/90\n const needsStreamingResponse = true;\n if (needsStreamingResponse) {\n request.get({\n headers,\n method: \"GET\",\n timeout: 2000,\n uri: linkStatus.Href,\n })\n .on(\"response\", async (res) => {\n try {\n await success(res);\n }\n catch (successError) {\n failure(successError);\n return;\n }\n })\n .on(\"error\", failure);\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: linkStatus.Href,\n });\n } catch (err) {\n failure(err);\n return;\n }\n\n await success(response);\n }\n}\n"]} |