{"version":3,"file":"ClientCredentialClient.js","sources":["../../src/client/ClientCredentialClient.ts"],"sourcesContent":["/*\r\n * Copyright (c) Microsoft Corporation. All rights reserved.\r\n * Licensed under the MIT License.\r\n */\r\n\r\nimport { ClientConfiguration } from \"../config/ClientConfiguration\";\r\nimport { BaseClient } from \"./BaseClient\";\r\nimport { Authority } from \"../authority/Authority\";\r\nimport { RequestParameterBuilder } from \"../request/RequestParameterBuilder\";\r\nimport { ScopeSet } from \"../request/ScopeSet\";\r\nimport { GrantType , CredentialType, CacheOutcome, Constants, AuthenticationScheme } from \"../utils/Constants\";\r\nimport { ResponseHandler } from \"../response/ResponseHandler\";\r\nimport { AuthenticationResult } from \"../response/AuthenticationResult\";\r\nimport { CommonClientCredentialRequest } from \"../request/CommonClientCredentialRequest\";\r\nimport { CredentialFilter, CredentialCache } from \"../cache/utils/CacheTypes\";\r\nimport { AccessTokenEntity } from \"../cache/entities/AccessTokenEntity\";\r\nimport { TimeUtils } from \"../utils/TimeUtils\";\r\nimport { StringUtils } from \"../utils/StringUtils\";\r\nimport { RequestThumbprint } from \"../network/RequestThumbprint\";\r\nimport { ClientAuthError } from \"../error/ClientAuthError\";\r\nimport { ServerAuthorizationTokenResponse } from \"../response/ServerAuthorizationTokenResponse\";\r\nimport { IAppTokenProvider } from \"../config/AppTokenProvider\";\r\n\r\n/**\r\n * OAuth2.0 client credential grant\r\n */\r\nexport class ClientCredentialClient extends BaseClient {\r\n\r\n private scopeSet: ScopeSet;\r\n private readonly appTokenProvider?: IAppTokenProvider;\r\n\r\n constructor(configuration: ClientConfiguration, appTokenProvider?: IAppTokenProvider) {\r\n super(configuration);\r\n this.appTokenProvider = appTokenProvider;\r\n }\r\n\r\n /**\r\n * Public API to acquire a token with ClientCredential Flow for Confidential clients\r\n * @param request\r\n */\r\n public async acquireToken(request: CommonClientCredentialRequest): Promise {\r\n\r\n this.scopeSet = new ScopeSet(request.scopes || []);\r\n\r\n if (request.skipCache) {\r\n return await this.executeTokenRequest(request, this.authority);\r\n }\r\n\r\n const cachedAuthenticationResult = await this.getCachedAuthenticationResult(request);\r\n if (cachedAuthenticationResult) {\r\n return cachedAuthenticationResult;\r\n } else {\r\n return await this.executeTokenRequest(request, this.authority);\r\n }\r\n }\r\n\r\n /**\r\n * looks up cache if the tokens are cached already\r\n */\r\n private async getCachedAuthenticationResult(request: CommonClientCredentialRequest): Promise {\r\n \r\n const cachedAccessToken = this.readAccessTokenFromCache();\r\n\r\n if (!cachedAccessToken) {\r\n this.serverTelemetryManager?.setCacheOutcome(CacheOutcome.NO_CACHED_ACCESS_TOKEN);\r\n return null;\r\n }\r\n\r\n if (TimeUtils.isTokenExpired(cachedAccessToken.expiresOn, this.config.systemOptions.tokenRenewalOffsetSeconds)) {\r\n this.serverTelemetryManager?.setCacheOutcome(CacheOutcome.CACHED_ACCESS_TOKEN_EXPIRED);\r\n return null;\r\n }\r\n\r\n return await ResponseHandler.generateAuthenticationResult(\r\n this.cryptoUtils,\r\n this.authority,\r\n {\r\n account: null,\r\n idToken: null,\r\n accessToken: cachedAccessToken,\r\n refreshToken: null,\r\n appMetadata: null\r\n },\r\n true,\r\n request\r\n );\r\n }\r\n\r\n /**\r\n * Reads access token from the cache\r\n * TODO: Move this call to cacheManager instead\r\n */\r\n private readAccessTokenFromCache(): AccessTokenEntity | null {\r\n const accessTokenFilter: CredentialFilter = {\r\n homeAccountId: Constants.EMPTY_STRING,\r\n environment: this.authority.canonicalAuthorityUrlComponents.HostNameAndPort,\r\n credentialType: CredentialType.ACCESS_TOKEN,\r\n clientId: this.config.authOptions.clientId,\r\n realm: this.authority.tenant,\r\n target: this.scopeSet.printScopesLowerCase()\r\n };\r\n const credentialCache: CredentialCache = this.cacheManager.getCredentialsFilteredBy(accessTokenFilter);\r\n const accessTokens = Object.keys(credentialCache.accessTokens).map(key => credentialCache.accessTokens[key]);\r\n if (accessTokens.length < 1) {\r\n return null;\r\n } else if (accessTokens.length > 1) {\r\n throw ClientAuthError.createMultipleMatchingTokensInCacheError();\r\n }\r\n return accessTokens[0] as AccessTokenEntity;\r\n }\r\n\r\n /**\r\n * Makes a network call to request the token from the service\r\n * @param request\r\n * @param authority\r\n */\r\n private async executeTokenRequest(request: CommonClientCredentialRequest, authority: Authority)\r\n : Promise {\r\n \r\n let serverTokenResponse: ServerAuthorizationTokenResponse;\r\n let reqTimestamp: number;\r\n\r\n if (this.appTokenProvider) {\r\n this.logger.info(\"Using appTokenProvider extensibility.\");\r\n\r\n const appTokenPropviderParameters = {\r\n correlationId: request.correlationId,\r\n tenantId: this.config.authOptions.authority.tenant,\r\n scopes: request.scopes,\r\n claims: request.claims,\r\n };\r\n\r\n reqTimestamp = TimeUtils.nowSeconds();\r\n const appTokenProviderResult = await this.appTokenProvider(appTokenPropviderParameters);\r\n\r\n serverTokenResponse = {\r\n access_token: appTokenProviderResult.accessToken, \r\n expires_in: appTokenProviderResult.expiresInSeconds,\r\n refresh_in: appTokenProviderResult.refreshInSeconds,\r\n token_type : AuthenticationScheme.BEARER\r\n };\r\n } else {\r\n const requestBody = this.createTokenRequestBody(request);\r\n const headers: Record = this.createTokenRequestHeaders();\r\n const thumbprint: RequestThumbprint = {\r\n clientId: this.config.authOptions.clientId,\r\n authority: request.authority,\r\n scopes: request.scopes,\r\n claims: request.claims,\r\n authenticationScheme: request.authenticationScheme,\r\n resourceRequestMethod: request.resourceRequestMethod,\r\n resourceRequestUri: request.resourceRequestUri,\r\n shrClaims: request.shrClaims,\r\n sshKid: request.sshKid\r\n };\r\n \r\n reqTimestamp = TimeUtils.nowSeconds();\r\n const response = await this.executePostToTokenEndpoint(authority.tokenEndpoint, requestBody, headers, thumbprint);\r\n serverTokenResponse = response.body;\r\n }\r\n\r\n const responseHandler = new ResponseHandler(\r\n this.config.authOptions.clientId,\r\n this.cacheManager,\r\n this.cryptoUtils,\r\n this.logger,\r\n this.config.serializableCache,\r\n this.config.persistencePlugin\r\n );\r\n\r\n responseHandler.validateTokenResponse(serverTokenResponse);\r\n \r\n const tokenResponse = await responseHandler.handleServerTokenResponse(\r\n serverTokenResponse,\r\n this.authority,\r\n reqTimestamp,\r\n request\r\n );\r\n\r\n return tokenResponse;\r\n }\r\n\r\n /**\r\n * generate the request to the server in the acceptable format\r\n * @param request\r\n */\r\n private createTokenRequestBody(request: CommonClientCredentialRequest): string {\r\n const parameterBuilder = new RequestParameterBuilder();\r\n\r\n parameterBuilder.addClientId(this.config.authOptions.clientId);\r\n\r\n parameterBuilder.addScopes(request.scopes, false);\r\n\r\n parameterBuilder.addGrantType(GrantType.CLIENT_CREDENTIALS_GRANT);\r\n\r\n parameterBuilder.addLibraryInfo(this.config.libraryInfo);\r\n parameterBuilder.addApplicationTelemetry(this.config.telemetry.application);\r\n\r\n parameterBuilder.addThrottling();\r\n \r\n if (this.serverTelemetryManager) {\r\n parameterBuilder.addServerTelemetry(this.serverTelemetryManager);\r\n }\r\n\r\n const correlationId = request.correlationId || this.config.cryptoInterface.createNewGuid();\r\n parameterBuilder.addCorrelationId(correlationId);\r\n\r\n if (this.config.clientCredentials.clientSecret) {\r\n parameterBuilder.addClientSecret(this.config.clientCredentials.clientSecret);\r\n }\r\n\r\n // Use clientAssertion from request, fallback to client assertion in base configuration\r\n const clientAssertion = request.clientAssertion || this.config.clientCredentials.clientAssertion;\r\n\r\n if (clientAssertion) {\r\n parameterBuilder.addClientAssertion(clientAssertion.assertion);\r\n parameterBuilder.addClientAssertionType(clientAssertion.assertionType);\r\n }\r\n\r\n if (!StringUtils.isEmptyObj(request.claims) || this.config.authOptions.clientCapabilities && this.config.authOptions.clientCapabilities.length > 0) {\r\n parameterBuilder.addClaims(request.claims, this.config.authOptions.clientCapabilities);\r\n }\r\n\r\n return parameterBuilder.createQueryString();\r\n 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