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More information: https://www.jsdelivr.com/using-sri-with-dynamic-files\n */\n","'use strict';\n\nconst assert = require('assert');\nconst commander = require('commander');\nconst _ = require('lodash');\nconst EventEmitter = require('events');\nconst util = require('util');\n\nconst bootstrap = require('./lib/bootstrap');\nconst loggerUtil = require('./lib/utils/logger');\nconst validators = require('./lib/configuration/validators');\nconst appConfig = require('./lib/configuration/app-config');\nconst envConfig = require('./lib/configuration/env-config');\nconst MiddlewareList = require('./lib/extensions/MiddlewareList');\nconst serverLib = require('./lib/server');\nconst optionalCallback = require('./lib/utils/callback');\nconst uaaUtils = require('./lib/utils/uaa-utils');\nconst dynamicRoutingUtils = require('./lib/utils/dynamic-routing-utils');\nconst iasUtils = require('./lib/utils/ias-utils');\n\nmodule.exports = Approuter;\n\nfunction Approuter() {\n assert(arguments.length === 0, 'Constructor takes no arguments');\n if (!(this instanceof Approuter)) {\n return new Approuter();\n }\n EventEmitter.call(this);\n\n this.cmdParser = new commander.Command()\n .option('-w, --workingDir ', 'The working directory containting the resources folder and xs-app.json file')\n .option('-p, --port ', 'The port of the approuter');\n\n this.first = new MiddlewareList();\n this.beforeRequestHandler = new MiddlewareList();\n this.beforeErrorHandler = new MiddlewareList();\n this.firstWS = new MiddlewareList();\n this.beforeRequestHandlerWS = new MiddlewareList();\n}\n\nutil.inherits(Approuter, EventEmitter);\n\nApprouter.prototype.start = async function (options, callback) {\n let self = this;\n if (dynamicRoutingUtils.isDynamicRouting()) {\n self.first.use(dynamicRoutingUtils.initialize(self));\n if (options) {\n delete options.port;\n options.getRouterConfig = dynamicRoutingUtils.getRouterConfig;\n } else {\n options = {'getRouterConfig': dynamicRoutingUtils.getRouterConfig};\n }\n }\n if (options) {\n validators.validateApprouterStartOptions(options);\n options = _.cloneDeep(options);\n } else {\n options = {};\n }\n callback = optionalCallback(callback);\n\n if (this.cmdParser) {\n this.cmdParser.parse(process.argv);\n options = _.defaults(options, this.cmdParser);\n }\n addImplicitExtension(this, options);\n\n let logger = loggerUtil.getLogger('/approuter');\n logger.info('Application router version %s', require('./package.json').version);\n\n let app = bootstrap(options);\n app.logger = logger;\n await enrichStartupData(app, logger);\n app.approuter = this;\n app.extensions = options.extensions;\n this._app = app;\n loggerUtil.getAuditLogger(function (err, auditLogger) {\n if (err) {\n throw err;\n }\n app.auditLogger = auditLogger;\n serverLib.start(app, function (err, server) {\n self._server = server;\n callback(err);\n });\n });\n};\n\nApprouter.prototype.close = function (callback) {\n if (this._server) {\n clearInterval(this._app._store.memoryStore.sessionChecker);\n this._server.close(callback);\n } else {\n process.nextTick(callback);\n }\n};\n\nApprouter.prototype.resolveUaaConfig = uaaUtils.resolveUaaConfig;\nApprouter.prototype.getRemoteConfigurationOptions = dynamicRoutingUtils.getRemoteConfigurationOptions;\n\nApprouter.prototype.createRouterConfig = function (options, callback) {\n options = _.cloneDeep(options); // avoid side effects in case of modifications\n let error;\n let routerConfig;\n try {\n assert(this._app, 'Call Approuter.start before Approuter.createRouterConfig');\n routerConfig = this._app.get('mainRouterConfig');\n let xsappname = options.xsappname || routerConfig.uaaConfig.options.xsappname;\n let customDestinations = (options.destinations) ? envConfig.loadDestinations(options.destinations) : routerConfig.destinations;\n let customAppConfig = appConfig.loadConfiguration(routerConfig.workingDir,\n options.xsappConfig, customDestinations, xsappname);\n customAppConfig.logout = _.extend({}, routerConfig.appConfig.logout, _.pick(customAppConfig.logout, 'logoutPage', 'logoutEndpoint', 'logoutMethod', 'csrfProtection'));\n routerConfig = _.defaults({\n appConfig: customAppConfig,\n destinations: customDestinations\n }, routerConfig);\n } catch (err) {\n error = err;\n }\n callback(error, routerConfig);\n};\n\nApprouter.prototype.getSessionStore = function getSessionStore() {\n let memoryStore = this._app.get('memoryStore');\n return Object.create(memoryStore, {\n set: {\n value: function(sessionId, sessionString, timeout, callback) {\n let diff = timeout - Date.now();\n memoryStore.set(sessionId, JSON.parse(sessionString), callback);\n memoryStore.sessionTimers[sessionId] = Math.floor(diff / 10000); // tens of seconds\n }\n }\n });\n};\n\nasync function enrichStartupData(app, logger) {\n const iasConfig = app.get('mainRouterConfig').iasConfig || {};\n const iasCredentials = iasConfig.options || {};\n if (!Object.keys(iasCredentials).length) {\n return;\n }\n let missing;\n if (!iasCredentials.app_tid) {\n missing = 'app_tid missing';\n } else if (!iasCredentials['btp-tenant-api']) {\n missing = 'btp-tenant-api missing';\n }\n if (missing) {\n logger.error(`Skipping IAS identityzone population at startup: ${missing}`);\n return;\n }\n\n try {\n iasCredentials.identityzone = await iasUtils.getSubdomainByApptid(iasCredentials.app_tid, iasCredentials['btp-tenant-api']);\n logger.info('IAS identityzone populated at startup: %s', iasCredentials.identityzone);\n } catch (err) {\n logger.error('Failed to populate IAS identityzone at startup: %s', err.message);\n }\n}\n\nfunction addImplicitExtension(ar, options) {\n let ext = {\n insertMiddleware: {\n first: ar.first._middleware,\n beforeRequestHandler: ar.beforeRequestHandler._middleware,\n beforeErrorHandler: ar.beforeErrorHandler._middleware,\n firstWS: ar.firstWS._middleware,\n beforeRequestHandlerWS: ar.beforeRequestHandlerWS._middleware\n }\n };\n options.extensions = options.extensions || [];\n options.extensions.unshift(ext);\n}\n\n\nif (require.main === module) {\n let ar = new Approuter();\n ar.start();\n}\n"]}