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refreshclient.ts
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refreshclient.ts
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// Copyright 2015 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.
import * as stream from 'stream';
import {JWTInput} from './credentials';
import {
Headers,
GetTokenResponse,
OAuth2Client,
RefreshOptions,
} from './oauth2client';
export interface UserRefreshClientOptions extends RefreshOptions {
clientId?: string;
clientSecret?: string;
refreshToken?: string;
}
export class UserRefreshClient extends OAuth2Client {
// TODO: refactor tests to make this private
// In a future gts release, the _propertyName rule will be lifted.
// This is also a hard one because `this.refreshToken` is a function.
_refreshToken?: string | null;
/**
* User Refresh Token credentials.
*
* @param clientId The authentication client ID.
* @param clientSecret The authentication client secret.
* @param refreshToken The authentication refresh token.
*/
constructor(clientId?: string, clientSecret?: string, refreshToken?: string);
constructor(options: UserRefreshClientOptions);
constructor(clientId?: string, clientSecret?: string, refreshToken?: string);
constructor(
optionsOrClientId?: string | UserRefreshClientOptions,
clientSecret?: string,
refreshToken?: string,
eagerRefreshThresholdMillis?: number,
forceRefreshOnFailure?: boolean
) {
const opts =
optionsOrClientId && typeof optionsOrClientId === 'object'
? optionsOrClientId
: {
clientId: optionsOrClientId,
clientSecret,
refreshToken,
eagerRefreshThresholdMillis,
forceRefreshOnFailure,
};
super({
clientId: opts.clientId,
clientSecret: opts.clientSecret,
eagerRefreshThresholdMillis: opts.eagerRefreshThresholdMillis,
forceRefreshOnFailure: opts.forceRefreshOnFailure,
});
this._refreshToken = opts.refreshToken;
this.credentials.refresh_token = opts.refreshToken;
}
/**
* Refreshes the access token.
* @param refreshToken An ignored refreshToken..
* @param callback Optional callback.
*/
protected async refreshTokenNoCache(
refreshToken?: string | null
): Promise<GetTokenResponse> {
return super.refreshTokenNoCache(this._refreshToken);
}
/**
* Create a UserRefreshClient credentials instance using the given input
* options.
* @param json The input object.
*/
fromJSON(json: JWTInput): void {
if (!json) {
throw new Error(
'Must pass in a JSON object containing the user refresh token'
);
}
if (json.type !== 'authorized_user') {
throw new Error(
'The incoming JSON object does not have the "authorized_user" type'
);
}
if (!json.client_id) {
throw new Error(
'The incoming JSON object does not contain a client_id field'
);
}
if (!json.client_secret) {
throw new Error(
'The incoming JSON object does not contain a client_secret field'
);
}
if (!json.refresh_token) {
throw new Error(
'The incoming JSON object does not contain a refresh_token field'
);
}
this._clientId = json.client_id;
this._clientSecret = json.client_secret;
this._refreshToken = json.refresh_token;
this.credentials.refresh_token = json.refresh_token;
this.quotaProjectId = json.quota_project_id;
}
/**
* Create a UserRefreshClient credentials instance using the given input
* stream.
* @param inputStream The input stream.
* @param callback Optional callback.
*/
fromStream(inputStream: stream.Readable): Promise<void>;
fromStream(
inputStream: stream.Readable,
callback: (err?: Error) => void
): void;
fromStream(
inputStream: stream.Readable,
callback?: (err?: Error) => void
): void | Promise<void> {
if (callback) {
this.fromStreamAsync(inputStream).then(r => callback(), callback);
} else {
return this.fromStreamAsync(inputStream);
}
}
private async fromStreamAsync(inputStream: stream.Readable): Promise<void> {
return new Promise<void>((resolve, reject) => {
if (!inputStream) {
return reject(
new Error('Must pass in a stream containing the user refresh token.')
);
}
let s = '';
inputStream
.setEncoding('utf8')
.on('error', reject)
.on('data', chunk => (s += chunk))
.on('end', () => {
try {
const data = JSON.parse(s);
this.fromJSON(data);
return resolve();
} catch (err) {
return reject(err);
}
});
});
}
}