@azure/msal-node
Version:
Microsoft Authentication Library for Node
56 lines (53 loc) • 3.83 kB
JavaScript
/*! @azure/msal-node v3.6.4 2025-07-23 */
;
import { BaseManagedIdentitySource } from './BaseManagedIdentitySource.mjs';
import { ManagedIdentityEnvironmentVariableNames, ManagedIdentitySourceNames, ManagedIdentityHeaders, ManagedIdentityQueryParameters, ManagedIdentityIdType, HttpMethod } from '../../utils/Constants.mjs';
import { ManagedIdentityRequestParameters } from '../../config/ManagedIdentityRequestParameters.mjs';
/*
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT License.
*/
// MSI Constants. Docs for MSI are available here https://docs.microsoft.com/azure/app-service/overview-managed-identity
const APP_SERVICE_MSI_API_VERSION = "2019-08-01";
/**
* Original source of code: https://github.com/Azure/azure-sdk-for-net/blob/main/sdk/identity/Azure.Identity/src/AppServiceManagedIdentitySource.cs
*/
class AppService extends BaseManagedIdentitySource {
constructor(logger, nodeStorage, networkClient, cryptoProvider, disableInternalRetries, identityEndpoint, identityHeader) {
super(logger, nodeStorage, networkClient, cryptoProvider, disableInternalRetries);
this.identityEndpoint = identityEndpoint;
this.identityHeader = identityHeader;
}
static getEnvironmentVariables() {
const identityEndpoint = process.env[ManagedIdentityEnvironmentVariableNames.IDENTITY_ENDPOINT];
const identityHeader = process.env[ManagedIdentityEnvironmentVariableNames.IDENTITY_HEADER];
return [identityEndpoint, identityHeader];
}
static tryCreate(logger, nodeStorage, networkClient, cryptoProvider, disableInternalRetries) {
const [identityEndpoint, identityHeader] = AppService.getEnvironmentVariables();
// if either of the identity endpoint or identity header variables are undefined, this MSI provider is unavailable.
if (!identityEndpoint || !identityHeader) {
logger.info(`[Managed Identity] ${ManagedIdentitySourceNames.APP_SERVICE} managed identity is unavailable because one or both of the '${ManagedIdentityEnvironmentVariableNames.IDENTITY_HEADER}' and '${ManagedIdentityEnvironmentVariableNames.IDENTITY_ENDPOINT}' environment variables are not defined.`);
return null;
}
const validatedIdentityEndpoint = AppService.getValidatedEnvVariableUrlString(ManagedIdentityEnvironmentVariableNames.IDENTITY_ENDPOINT, identityEndpoint, ManagedIdentitySourceNames.APP_SERVICE, logger);
logger.info(`[Managed Identity] Environment variables validation passed for ${ManagedIdentitySourceNames.APP_SERVICE} managed identity. Endpoint URI: ${validatedIdentityEndpoint}. Creating ${ManagedIdentitySourceNames.APP_SERVICE} managed identity.`);
return new AppService(logger, nodeStorage, networkClient, cryptoProvider, disableInternalRetries, identityEndpoint, identityHeader);
}
createRequest(resource, managedIdentityId) {
const request = new ManagedIdentityRequestParameters(HttpMethod.GET, this.identityEndpoint);
request.headers[ManagedIdentityHeaders.APP_SERVICE_SECRET_HEADER_NAME] =
this.identityHeader;
request.queryParameters[ManagedIdentityQueryParameters.API_VERSION] =
APP_SERVICE_MSI_API_VERSION;
request.queryParameters[ManagedIdentityQueryParameters.RESOURCE] =
resource;
if (managedIdentityId.idType !== ManagedIdentityIdType.SYSTEM_ASSIGNED) {
request.queryParameters[this.getManagedIdentityUserAssignedIdQueryParameterKey(managedIdentityId.idType)] = managedIdentityId.id;
}
// bodyParameters calculated in BaseManagedIdentity.acquireTokenWithManagedIdentity
return request;
}
}
export { AppService };
//# sourceMappingURL=AppService.mjs.map