/opt/canhelp/node_modules/google-auth-library/build/src/auth
Edit: /opt/canhelp/node_modules/google-auth-library/build/src/auth/idtokenclient.js (2106B)
"use strict";
// Copyright 2020 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
Object.defineProperty(exports, "__esModule", { value: true });
exports.IdTokenClient = void 0;
const oauth2client_1 = require("./oauth2client");
class IdTokenClient extends oauth2client_1.OAuth2Client {
targetAudience;
idTokenProvider;
/**
* Google ID Token client
*
* Retrieve ID token from the metadata server.
* See: https://cloud.google.com/docs/authentication/get-id-token#metadata-server
*/
constructor(options) {
super(options);
this.targetAudience = options.targetAudience;
this.idTokenProvider = options.idTokenProvider;
}
async getRequestMetadataAsync() {
if (!this.credentials.id_token ||
!this.credentials.expiry_date ||
this.isTokenExpiring()) {
const idToken = await this.idTokenProvider.fetchIdToken(this.targetAudience);
this.credentials = {
id_token: idToken,
expiry_date: this.getIdTokenExpiryDate(idToken),
};
}
const headers = new Headers({
authorization: 'Bearer ' + this.credentials.id_token,
});
return { headers };
}
getIdTokenExpiryDate(idToken) {
const payloadB64 = idToken.split('.')[1];
if (payloadB64) {
const payload = JSON.parse(Buffer.from(payloadB64, 'base64').toString('ascii'));
return payload.exp * 1000;
}
}
}
exports.IdTokenClient = IdTokenClient;
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