Updated

node_modules/google-auth-library/build/src/auth/authclient.d.ts

@@ -0,0 +1,35 @@
+/**
+ * Copyright 2012 Google Inc. All Rights Reserved.
+ *
+ * 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.
+ */
+/// <reference types="node" />
+import { EventEmitter } from 'events';
+import { GaxiosOptions, GaxiosPromise } from 'gaxios';
+import { DefaultTransporter } from '../transporters';
+import { Credentials } from './credentials';
+export declare interface AuthClient {
+    on(event: 'tokens', listener: (tokens: Credentials) => void): this;
+}
+export declare abstract class AuthClient extends EventEmitter {
+    transporter: DefaultTransporter;
+    credentials: Credentials;
+    /**
+     * Provides an alternative Gaxios request implementation with auth credentials
+     */
+    abstract request<T>(opts: GaxiosOptions): GaxiosPromise<T>;
+    /**
+     * Sets the auth credentials.
+     */
+    setCredentials(credentials: Credentials): void;
+}

node_modules/google-auth-library/build/src/auth/authclient.js

@@ -0,0 +1,34 @@
+"use strict";
+/**
+ * Copyright 2012 Google Inc. All Rights Reserved.
+ *
+ * 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 });
+const events_1 = require("events");
+const transporters_1 = require("../transporters");
+class AuthClient extends events_1.EventEmitter {
+    constructor() {
+        super(...arguments);
+        this.transporter = new transporters_1.DefaultTransporter();
+        this.credentials = {};
+    }
+    /**
+     * Sets the auth credentials.
+     */
+    setCredentials(credentials) {
+        this.credentials = credentials;
+    }
+}
+exports.AuthClient = AuthClient;
+//# sourceMappingURL=authclient.js.map

node_modules/google-auth-library/build/src/auth/computeclient.d.ts

@@ -0,0 +1,54 @@
+/**
+ * Copyright 2013 Google Inc. All Rights Reserved.
+ *
+ * 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 { GaxiosError } from 'gaxios';
+import { GetTokenResponse, OAuth2Client, RefreshOptions } from './oauth2client';
+export interface ComputeOptions extends RefreshOptions {
+    /**
+     * The service account email to use, or 'default'. A Compute Engine instance
+     * may have multiple service accounts.
+     */
+    serviceAccountEmail?: string;
+    /**
+     * The scopes that will be requested when acquiring service account
+     * credentials. Only applicable to modern App Engine and Cloud Function
+     * runtimes as of March 2019.
+     */
+    scopes?: string | string[];
+}
+export declare class Compute extends OAuth2Client {
+    private serviceAccountEmail;
+    scopes: string[];
+    /**
+     * Google Compute Engine service account credentials.
+     *
+     * Retrieve access token from the metadata server.
+     * See: https://developers.google.com/compute/docs/authentication
+     */
+    constructor(options?: ComputeOptions);
+    /**
+     * Indicates whether the credential requires scopes to be created by calling
+     * createdScoped before use.
+     * @deprecated
+     * @return Boolean indicating if scope is required.
+     */
+    createScopedRequired(): boolean;
+    /**
+     * Refreshes the access token.
+     * @param refreshToken Unused parameter
+     */
+    protected refreshTokenNoCache(refreshToken?: string | null): Promise<GetTokenResponse>;
+    protected wrapError(e: GaxiosError): void;
+}

node_modules/google-auth-library/build/src/auth/computeclient.js

@@ -0,0 +1,103 @@
+"use strict";
+/**
+ * Copyright 2013 Google Inc. All Rights Reserved.
+ *
+ * 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 });
+const arrify = require("arrify");
+const gcpMetadata = require("gcp-metadata");
+const messages = require("../messages");
+const oauth2client_1 = require("./oauth2client");
+class Compute extends oauth2client_1.OAuth2Client {
+    /**
+     * Google Compute Engine service account credentials.
+     *
+     * Retrieve access token from the metadata server.
+     * See: https://developers.google.com/compute/docs/authentication
+     */
+    constructor(options = {}) {
+        super(options);
+        // Start with an expired refresh token, which will automatically be
+        // refreshed before the first API call is made.
+        this.credentials = { expiry_date: 1, refresh_token: 'compute-placeholder' };
+        this.serviceAccountEmail = options.serviceAccountEmail || 'default';
+        this.scopes = arrify(options.scopes);
+    }
+    /**
+     * Indicates whether the credential requires scopes to be created by calling
+     * createdScoped before use.
+     * @deprecated
+     * @return Boolean indicating if scope is required.
+     */
+    createScopedRequired() {
+        // On compute engine, scopes are specified at the compute instance's
+        // creation time, and cannot be changed. For this reason, always return
+        // false.
+        messages.warn(messages.COMPUTE_CREATE_SCOPED_DEPRECATED);
+        return false;
+    }
+    /**
+     * Refreshes the access token.
+     * @param refreshToken Unused parameter
+     */
+    async refreshTokenNoCache(refreshToken) {
+        const tokenPath = `service-accounts/${this.serviceAccountEmail}/token`;
+        let data;
+        try {
+            const instanceOptions = {
+                property: tokenPath,
+            };
+            if (this.scopes.length > 0) {
+                instanceOptions.params = {
+                    scopes: this.scopes.join(','),
+                };
+            }
+            data = await gcpMetadata.instance(instanceOptions);
+        }
+        catch (e) {
+            e.message = `Could not refresh access token: ${e.message}`;
+            this.wrapError(e);
+            throw e;
+        }
+        const tokens = data;
+        if (data && data.expires_in) {
+            tokens.expiry_date = new Date().getTime() + data.expires_in * 1000;
+            delete tokens.expires_in;
+        }
+        this.emit('tokens', tokens);
+        return { tokens, res: null };
+    }
+    wrapError(e) {
+        const res = e.response;
+        if (res && res.status) {
+            e.code = res.status.toString();
+            if (res.status === 403) {
+                e.message =
+                    'A Forbidden error was returned while attempting to retrieve an access ' +
+                        'token for the Compute Engine built-in service account. This may be because the Compute ' +
+                        'Engine instance does not have the correct permission scopes specified: ' +
+                        e.message;
+            }
+            else if (res.status === 404) {
+                e.message =
+                    'A Not Found error was returned while attempting to retrieve an access' +
+                        'token for the Compute Engine built-in service account. This may be because the Compute ' +
+                        'Engine instance does not have any permission scopes specified: ' +
+                        e.message;
+            }
+        }
+    }
+}
+exports.Compute = Compute;
+//# sourceMappingURL=computeclient.js.map

node_modules/google-auth-library/build/src/auth/credentials.d.ts

@@ -0,0 +1,43 @@
+/**
+ * Copyright 2014 Google Inc. All Rights Reserved.
+ *
+ * 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.
+ */
+export interface Credentials {
+    refresh_token?: string | null;
+    expiry_date?: number | null;
+    access_token?: string | null;
+    token_type?: string | null;
+    id_token?: string | null;
+}
+export interface CredentialRequest {
+    refresh_token?: string;
+    access_token?: string;
+    token_type?: string;
+    expires_in?: number;
+    id_token?: string;
+}
+export interface JWTInput {
+    type?: string;
+    client_email?: string;
+    private_key?: string;
+    private_key_id?: string;
+    project_id?: string;
+    client_id?: string;
+    client_secret?: string;
+    refresh_token?: string;
+}
+export interface CredentialBody {
+    client_email?: string;
+    private_key?: string;
+}

node_modules/google-auth-library/build/src/auth/credentials.js

@@ -0,0 +1,18 @@
+"use strict";
+/**
+ * Copyright 2014 Google Inc. All Rights Reserved.
+ *
+ * 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 });
+//# sourceMappingURL=credentials.js.map

node_modules/google-auth-library/build/src/auth/envDetect.d.ts

@@ -0,0 +1,24 @@
+/**
+ * Copyright 2018 Google LLC. All Rights Reserved.
+ *
+ * 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.
+ */
+export declare enum GCPEnv {
+    APP_ENGINE = "APP_ENGINE",
+    KUBERNETES_ENGINE = "KUBERNETES_ENGINE",
+    CLOUD_FUNCTIONS = "CLOUD_FUNCTIONS",
+    COMPUTE_ENGINE = "COMPUTE_ENGINE",
+    NONE = "NONE"
+}
+export declare function clear(): void;
+export declare function getEnv(): Promise<GCPEnv>;

node_modules/google-auth-library/build/src/auth/envDetect.js

@@ -0,0 +1,71 @@
+"use strict";
+/**
+ * Copyright 2018 Google LLC. All Rights Reserved.
+ *
+ * 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 });
+const gcpMetadata = require("gcp-metadata");
+var GCPEnv;
+(function (GCPEnv) {
+    GCPEnv["APP_ENGINE"] = "APP_ENGINE";
+    GCPEnv["KUBERNETES_ENGINE"] = "KUBERNETES_ENGINE";
+    GCPEnv["CLOUD_FUNCTIONS"] = "CLOUD_FUNCTIONS";
+    GCPEnv["COMPUTE_ENGINE"] = "COMPUTE_ENGINE";
+    GCPEnv["NONE"] = "NONE";
+})(GCPEnv = exports.GCPEnv || (exports.GCPEnv = {}));
+let env;
+function clear() {
+    env = undefined;
+}
+exports.clear = clear;
+async function getEnv() {
+    if (!env) {
+        if (isAppEngine()) {
+            env = GCPEnv.APP_ENGINE;
+        }
+        else if (isCloudFunction()) {
+            env = GCPEnv.CLOUD_FUNCTIONS;
+        }
+        else if (await isKubernetesEngine()) {
+            env = GCPEnv.KUBERNETES_ENGINE;
+        }
+        else if (await isComputeEngine()) {
+            env = GCPEnv.COMPUTE_ENGINE;
+        }
+        else {
+            env = GCPEnv.NONE;
+        }
+    }
+    return env;
+}
+exports.getEnv = getEnv;
+function isAppEngine() {
+    return !!(process.env.GAE_SERVICE || process.env.GAE_MODULE_NAME);
+}
+function isCloudFunction() {
+    return !!(process.env.FUNCTION_NAME || process.env.FUNCTION_TARGET);
+}
+async function isKubernetesEngine() {
+    try {
+        await gcpMetadata.instance('attributes/cluster-name');
+        return true;
+    }
+    catch (e) {
+        return false;
+    }
+}
+async function isComputeEngine() {
+    return gcpMetadata.isAvailable();
+}
+//# sourceMappingURL=envDetect.js.map

node_modules/google-auth-library/build/src/auth/googleauth.d.ts

@@ -0,0 +1,262 @@
+/**
+ * Copyright 2019 Google LLC. All Rights Reserved.
+ *
+ * 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.
+ */
+/// <reference types="node" />
+import { GaxiosOptions, GaxiosResponse } from 'gaxios';
+import * as stream from 'stream';
+import { DefaultTransporter, Transporter } from '../transporters';
+import { Compute } from './computeclient';
+import { CredentialBody, JWTInput } from './credentials';
+import { GCPEnv } from './envDetect';
+import { JWT, JWTOptions } from './jwtclient';
+import { Headers, OAuth2Client, OAuth2ClientOptions, RefreshOptions } from './oauth2client';
+import { UserRefreshClient, UserRefreshClientOptions } from './refreshclient';
+export interface ProjectIdCallback {
+    (err?: Error | null, projectId?: string | null): void;
+}
+export interface CredentialCallback {
+    (err: Error | null, result?: UserRefreshClient | JWT): void;
+}
+interface DeprecatedGetClientOptions {
+}
+export interface ADCCallback {
+    (err: Error | null, credential?: OAuth2Client, projectId?: string | null): void;
+}
+export interface ADCResponse {
+    credential: OAuth2Client;
+    projectId: string | null;
+}
+export interface GoogleAuthOptions {
+    /**
+     * Path to a .json, .pem, or .p12 key file
+     */
+    keyFilename?: string;
+    /**
+     * Path to a .json, .pem, or .p12 key file
+     */
+    keyFile?: string;
+    /**
+     * Object containing client_email and private_key properties
+     */
+    credentials?: CredentialBody;
+    /**
+     * Options object passed to the constructor of the client
+     */
+    clientOptions?: JWTOptions | OAuth2ClientOptions | UserRefreshClientOptions;
+    /**
+     * Required scopes for the desired API request
+     */
+    scopes?: string | string[];
+    /**
+     * Your project ID.
+     */
+    projectId?: string;
+}
+export declare const CLOUD_SDK_CLIENT_ID = "764086051850-6qr4p6gpi6hn506pt8ejuq83di341hur.apps.googleusercontent.com";
+export declare class GoogleAuth {
+    transporter?: Transporter;
+    /**
+     * Caches a value indicating whether the auth layer is running on Google
+     * Compute Engine.
+     * @private
+     */
+    private checkIsGCE?;
+    readonly isGCE: boolean | undefined;
+    private _getDefaultProjectIdPromise?;
+    private _cachedProjectId?;
+    jsonContent: JWTInput | null;
+    cachedCredential: JWT | UserRefreshClient | Compute | null;
+    private keyFilename?;
+    private scopes?;
+    private clientOptions?;
+    /**
+     * Export DefaultTransporter as a static property of the class.
+     */
+    static DefaultTransporter: typeof DefaultTransporter;
+    constructor(opts?: GoogleAuthOptions);
+    /**
+     * THIS METHOD HAS BEEN DEPRECATED.
+     * It will be removed in 3.0.  Please use getProjectId instead.
+     */
+    getDefaultProjectId(): Promise<string>;
+    getDefaultProjectId(callback: ProjectIdCallback): void;
+    /**
+     * Obtains the default project ID for the application.
+     * @param callback Optional callback
+     * @returns Promise that resolves with project Id (if used without callback)
+     */
+    getProjectId(): Promise<string>;
+    getProjectId(callback: ProjectIdCallback): void;
+    private getProjectIdAsync;
+    /**
+     * Obtains the default service-level credentials for the application.
+     * @param callback Optional callback.
+     * @returns Promise that resolves with the ADCResponse (if no callback was
+     * passed).
+     */
+    getApplicationDefault(): Promise<ADCResponse>;
+    getApplicationDefault(callback: ADCCallback): void;
+    getApplicationDefault(options: RefreshOptions): Promise<ADCResponse>;
+    getApplicationDefault(options: RefreshOptions, callback: ADCCallback): void;
+    private getApplicationDefaultAsync;
+    /**
+     * Determines whether the auth layer is running on Google Compute Engine.
+     * @returns A promise that resolves with the boolean.
+     * @api private
+     */
+    _checkIsGCE(): Promise<boolean>;
+    /**
+     * Attempts to load default credentials from the environment variable path..
+     * @returns Promise that resolves with the OAuth2Client or null.
+     * @api private
+     */
+    _tryGetApplicationCredentialsFromEnvironmentVariable(options?: RefreshOptions): Promise<JWT | UserRefreshClient | null>;
+    /**
+     * Attempts to load default credentials from a well-known file location
+     * @return Promise that resolves with the OAuth2Client or null.
+     * @api private
+     */
+    _tryGetApplicationCredentialsFromWellKnownFile(options?: RefreshOptions): Promise<JWT | UserRefreshClient | null>;
+    /**
+     * Attempts to load default credentials from a file at the given path..
+     * @param filePath The path to the file to read.
+     * @returns Promise that resolves with the OAuth2Client
+     * @api private
+     */
+    _getApplicationCredentialsFromFilePath(filePath: string, options?: RefreshOptions): Promise<JWT | UserRefreshClient>;
+    /**
+     * Credentials from the Cloud SDK that are associated with Cloud SDK's project
+     * are problematic because they may not have APIs enabled and have limited
+     * quota. If this is the case, warn about it.
+     */
+    protected warnOnProblematicCredentials(client: JWT): void;
+    /**
+     * Create a credentials instance using the given input options.
+     * @param json The input object.
+     * @param options The JWT or UserRefresh options for the client
+     * @returns JWT or UserRefresh Client with data
+     */
+    fromJSON(json: JWTInput, options?: RefreshOptions): JWT | UserRefreshClient;
+    /**
+     * Return a JWT or UserRefreshClient from JavaScript object, caching both the
+     * object used to instantiate and the client.
+     * @param json The input object.
+     * @param options The JWT or UserRefresh options for the client
+     * @returns JWT or UserRefresh Client with data
+     */
+    private _cacheClientFromJSON;
+    /**
+     * Create a credentials instance using the given input stream.
+     * @param inputStream The input stream.
+     * @param callback Optional callback.
+     */
+    fromStream(inputStream: stream.Readable): Promise<JWT | UserRefreshClient>;
+    fromStream(inputStream: stream.Readable, callback: CredentialCallback): void;
+    fromStream(inputStream: stream.Readable, options: RefreshOptions): Promise<JWT | UserRefreshClient>;
+    fromStream(inputStream: stream.Readable, options: RefreshOptions, callback: CredentialCallback): void;
+    private fromStreamAsync;
+    /**
+     * Create a credentials instance using the given API key string.
+     * @param apiKey The API key string
+     * @param options An optional options object.
+     * @returns A JWT loaded from the key
+     */
+    fromAPIKey(apiKey: string, options?: RefreshOptions): JWT;
+    /**
+     * Determines whether the current operating system is Windows.
+     * @api private
+     */
+    private _isWindows;
+    /**
+     * Run the Google Cloud SDK command that prints the default project ID
+     */
+    private getDefaultServiceProjectId;
+    /**
+     * Loads the project id from environment variables.
+     * @api private
+     */
+    private getProductionProjectId;
+    /**
+     * Loads the project id from the GOOGLE_APPLICATION_CREDENTIALS json file.
+     * @api private
+     */
+    private getFileProjectId;
+    /**
+     * Gets the Compute Engine project ID if it can be inferred.
+     */
+    private getGCEProjectId;
+    /**
+     * The callback function handles a credential object that contains the
+     * client_email and private_key (if exists).
+     * getCredentials checks for these values from the user JSON at first.
+     * If it doesn't exist, and the environment is on GCE, it gets the
+     * client_email from the cloud metadata server.
+     * @param callback Callback that handles the credential object that contains
+     * a client_email and optional private key, or the error.
+     * returned
+     */
+    getCredentials(): Promise<CredentialBody>;
+    getCredentials(callback: (err: Error | null, credentials?: CredentialBody) => void): void;
+    private getCredentialsAsync;
+    /**
+     * Automatically obtain a client based on the provided configuration.  If no
+     * options were passed, use Application Default Credentials.
+     */
+    getClient(options?: DeprecatedGetClientOptions): Promise<Compute | JWT | UserRefreshClient>;
+    /**
+     * Automatically obtain application default credentials, and return
+     * an access token for making requests.
+     */
+    getAccessToken(): Promise<string | null | undefined>;
+    /**
+     * Obtain the HTTP headers that will provide authorization for a given
+     * request.
+     */
+    getRequestHeaders(url?: string): Promise<Headers>;
+    /**
+     * Obtain credentials for a request, then attach the appropriate headers to
+     * the request options.
+     * @param opts Axios or Request options on which to attach the headers
+     */
+    authorizeRequest(opts: {
+        url?: string;
+        uri?: string;
+        headers?: Headers;
+    }): Promise<{
+        url?: string | undefined;
+        uri?: string | undefined;
+        headers?: Headers | undefined;
+    }>;
+    /**
+     * Automatically obtain application default credentials, and make an
+     * HTTP request using the given options.
+     * @param opts Axios request options for the HTTP request.
+     */
+    request<T = any>(opts: GaxiosOptions): Promise<GaxiosResponse<T>>;
+    /**
+     * Determine the compute environment in which the code is running.
+     */
+    getEnv(): Promise<GCPEnv>;
+    /**
+     * Sign the given data with the current private key, or go out
+     * to the IAM API to sign it.
+     * @param data The data to be signed.
+     */
+    sign(data: string): Promise<string>;
+}
+export interface SignBlobResponse {
+    signature: string;
+}
+export {};

node_modules/google-auth-library/build/src/auth/googleauth.js

@@ -0,0 +1,587 @@
+"use strict";
+/**
+ * Copyright 2019 Google LLC. All Rights Reserved.
+ *
+ * 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 });
+const child_process_1 = require("child_process");
+const fs = require("fs");
+const gcpMetadata = require("gcp-metadata");
+const os = require("os");
+const path = require("path");
+const crypto_1 = require("../crypto/crypto");
+const messages = require("../messages");
+const transporters_1 = require("../transporters");
+const computeclient_1 = require("./computeclient");
+const envDetect_1 = require("./envDetect");
+const jwtclient_1 = require("./jwtclient");
+const refreshclient_1 = require("./refreshclient");
+exports.CLOUD_SDK_CLIENT_ID = '764086051850-6qr4p6gpi6hn506pt8ejuq83di341hur.apps.googleusercontent.com';
+class GoogleAuth {
+    constructor(opts) {
+        /**
+         * Caches a value indicating whether the auth layer is running on Google
+         * Compute Engine.
+         * @private
+         */
+        this.checkIsGCE = undefined;
+        // To save the contents of the JSON credential file
+        this.jsonContent = null;
+        this.cachedCredential = null;
+        opts = opts || {};
+        this._cachedProjectId = opts.projectId || null;
+        this.keyFilename = opts.keyFilename || opts.keyFile;
+        this.scopes = opts.scopes;
+        this.jsonContent = opts.credentials || null;
+        this.clientOptions = opts.clientOptions;
+    }
+    // Note:  this properly is only public to satisify unit tests.
+    // https://github.com/Microsoft/TypeScript/issues/5228
+    get isGCE() {
+        return this.checkIsGCE;
+    }
+    getDefaultProjectId(callback) {
+        messages.warn(messages.DEFAULT_PROJECT_ID_DEPRECATED);
+        if (callback) {
+            this.getProjectIdAsync().then(r => callback(null, r), callback);
+        }
+        else {
+            return this.getProjectIdAsync();
+        }
+    }
+    getProjectId(callback) {
+        if (callback) {
+            this.getProjectIdAsync().then(r => callback(null, r), callback);
+        }
+        else {
+            return this.getProjectIdAsync();
+        }
+    }
+    getProjectIdAsync() {
+        if (this._cachedProjectId) {
+            return Promise.resolve(this._cachedProjectId);
+        }
+        // In implicit case, supports three environments. In order of precedence,
+        // the implicit environments are:
+        // - GCLOUD_PROJECT or GOOGLE_CLOUD_PROJECT environment variable
+        // - GOOGLE_APPLICATION_CREDENTIALS JSON file
+        // - Cloud SDK: `gcloud config config-helper --format json`
+        // - GCE project ID from metadata server)
+        if (!this._getDefaultProjectIdPromise) {
+            this._getDefaultProjectIdPromise = new Promise(async (resolve, reject) => {
+                try {
+                    const projectId = this.getProductionProjectId() ||
+                        (await this.getFileProjectId()) ||
+                        (await this.getDefaultServiceProjectId()) ||
+                        (await this.getGCEProjectId());
+                    this._cachedProjectId = projectId;
+                    if (!projectId) {
+                        throw new Error('Unable to detect a Project Id in the current environment. \n' +
+                            'To learn more about authentication and Google APIs, visit: \n' +
+                            'https://cloud.google.com/docs/authentication/getting-started');
+                    }
+                    resolve(projectId);
+                }
+                catch (e) {
+                    reject(e);
+                }
+            });
+        }
+        return this._getDefaultProjectIdPromise;
+    }
+    getApplicationDefault(optionsOrCallback = {}, callback) {
+        let options;
+        if (typeof optionsOrCallback === 'function') {
+            callback = optionsOrCallback;
+        }
+        else {
+            options = optionsOrCallback;
+        }
+        if (callback) {
+            this.getApplicationDefaultAsync(options).then(r => callback(null, r.credential, r.projectId), callback);
+        }
+        else {
+            return this.getApplicationDefaultAsync(options);
+        }
+    }
+    async getApplicationDefaultAsync(options = {}) {
+        // If we've already got a cached credential, just return it.
+        if (this.cachedCredential) {
+            return {
+                credential: this.cachedCredential,
+                projectId: await this.getProjectIdAsync(),
+            };
+        }
+        let credential;
+        let projectId;
+        // Check for the existence of a local environment variable pointing to the
+        // location of the credential file. This is typically used in local
+        // developer scenarios.
+        credential = await this._tryGetApplicationCredentialsFromEnvironmentVariable(options);
+        if (credential) {
+            if (credential instanceof jwtclient_1.JWT) {
+                credential.scopes = this.scopes;
+            }
+            this.cachedCredential = credential;
+            projectId = await this.getProjectId();
+            return { credential, projectId };
+        }
+        // Look in the well-known credential file location.
+        credential = await this._tryGetApplicationCredentialsFromWellKnownFile(options);
+        if (credential) {
+            if (credential instanceof jwtclient_1.JWT) {
+                credential.scopes = this.scopes;
+            }
+            this.cachedCredential = credential;
+            projectId = await this.getProjectId();
+            return { credential, projectId };
+        }
+        // Determine if we're running on GCE.
+        let isGCE;
+        try {
+            isGCE = await this._checkIsGCE();
+        }
+        catch (e) {
+            e.message = `Unexpected error determining execution environment: ${e.message}`;
+            throw e;
+        }
+        if (!isGCE) {
+            // We failed to find the default credentials. Bail out with an error.
+            throw new Error('Could not load the default credentials. Browse to https://cloud.google.com/docs/authentication/getting-started for more information.');
+        }
+        // For GCE, just return a default ComputeClient. It will take care of
+        // the rest.
+        options.scopes = this.scopes;
+        this.cachedCredential = new computeclient_1.Compute(options);
+        projectId = await this.getProjectId();
+        return { projectId, credential: this.cachedCredential };
+    }
+    /**
+     * Determines whether the auth layer is running on Google Compute Engine.
+     * @returns A promise that resolves with the boolean.
+     * @api private
+     */
+    async _checkIsGCE() {
+        if (this.checkIsGCE === undefined) {
+            this.checkIsGCE = await gcpMetadata.isAvailable();
+        }
+        return this.checkIsGCE;
+    }
+    /**
+     * Attempts to load default credentials from the environment variable path..
+     * @returns Promise that resolves with the OAuth2Client or null.
+     * @api private
+     */
+    async _tryGetApplicationCredentialsFromEnvironmentVariable(options) {
+        const credentialsPath = process.env['GOOGLE_APPLICATION_CREDENTIALS'] ||
+            process.env['google_application_credentials'];
+        if (!credentialsPath || credentialsPath.length === 0) {
+            return null;
+        }
+        try {
+            return this._getApplicationCredentialsFromFilePath(credentialsPath, options);
+        }
+        catch (e) {
+            e.message = `Unable to read the credential file specified by the GOOGLE_APPLICATION_CREDENTIALS environment variable: ${e.message}`;
+            throw e;
+        }
+    }
+    /**
+     * Attempts to load default credentials from a well-known file location
+     * @return Promise that resolves with the OAuth2Client or null.
+     * @api private
+     */
+    async _tryGetApplicationCredentialsFromWellKnownFile(options) {
+        // First, figure out the location of the file, depending upon the OS type.
+        let location = null;
+        if (this._isWindows()) {
+            // Windows
+            location = process.env['APPDATA'];
+        }
+        else {
+            // Linux or Mac
+            const home = process.env['HOME'];
+            if (home) {
+                location = path.join(home, '.config');
+            }
+        }
+        // If we found the root path, expand it.
+        if (location) {
+            location = path.join(location, 'gcloud', 'application_default_credentials.json');
+            if (!fs.existsSync(location)) {
+                location = null;
+            }
+        }
+        // The file does not exist.
+        if (!location) {
+            return null;
+        }
+        // The file seems to exist. Try to use it.
+        const client = await this._getApplicationCredentialsFromFilePath(location, options);
+        this.warnOnProblematicCredentials(client);
+        return client;
+    }
+    /**
+     * Attempts to load default credentials from a file at the given path..
+     * @param filePath The path to the file to read.
+     * @returns Promise that resolves with the OAuth2Client
+     * @api private
+     */
+    async _getApplicationCredentialsFromFilePath(filePath, options = {}) {
+        // Make sure the path looks like a string.
+        if (!filePath || filePath.length === 0) {
+            throw new Error('The file path is invalid.');
+        }
+        // Make sure there is a file at the path. lstatSync will throw if there is
+        // nothing there.
+        try {
+            // Resolve path to actual file in case of symlink. Expect a thrown error
+            // if not resolvable.
+            filePath = fs.realpathSync(filePath);
+            if (!fs.lstatSync(filePath).isFile()) {
+                throw new Error();
+            }
+        }
+        catch (err) {
+            err.message = `The file at ${filePath} does not exist, or it is not a file. ${err.message}`;
+            throw err;
+        }
+        // Now open a read stream on the file, and parse it.
+        const readStream = fs.createReadStream(filePath);
+        return this.fromStream(readStream, options);
+    }
+    /**
+     * Credentials from the Cloud SDK that are associated with Cloud SDK's project
+     * are problematic because they may not have APIs enabled and have limited
+     * quota. If this is the case, warn about it.
+     */
+    warnOnProblematicCredentials(client) {
+        if (client.email === exports.CLOUD_SDK_CLIENT_ID) {
+            messages.warn(messages.PROBLEMATIC_CREDENTIALS_WARNING);
+        }
+    }
+    /**
+     * Create a credentials instance using the given input options.
+     * @param json The input object.
+     * @param options The JWT or UserRefresh options for the client
+     * @returns JWT or UserRefresh Client with data
+     */
+    fromJSON(json, options) {
+        let client;
+        if (!json) {
+            throw new Error('Must pass in a JSON object containing the Google auth settings.');
+        }
+        options = options || {};
+        if (json.type === 'authorized_user') {
+            client = new refreshclient_1.UserRefreshClient(options);
+        }
+        else {
+            options.scopes = this.scopes;
+            client = new jwtclient_1.JWT(options);
+        }
+        client.fromJSON(json);
+        return client;
+    }
+    /**
+     * Return a JWT or UserRefreshClient from JavaScript object, caching both the
+     * object used to instantiate and the client.
+     * @param json The input object.
+     * @param options The JWT or UserRefresh options for the client
+     * @returns JWT or UserRefresh Client with data
+     */
+    _cacheClientFromJSON(json, options) {
+        let client;
+        // create either a UserRefreshClient or JWT client.
+        options = options || {};
+        if (json.type === 'authorized_user') {
+            client = new refreshclient_1.UserRefreshClient(options);
+        }
+        else {
+            options.scopes = this.scopes;
+            client = new jwtclient_1.JWT(options);
+        }
+        client.fromJSON(json);
+        // cache both raw data used to instantiate client and client itself.
+        this.jsonContent = json;
+        this.cachedCredential = client;
+        return this.cachedCredential;
+    }
+    fromStream(inputStream, optionsOrCallback = {}, callback) {
+        let options = {};
+        if (typeof optionsOrCallback === 'function') {
+            callback = optionsOrCallback;
+        }
+        else {
+            options = optionsOrCallback;
+        }
+        if (callback) {
+            this.fromStreamAsync(inputStream, options).then(r => callback(null, r), callback);
+        }
+        else {
+            return this.fromStreamAsync(inputStream, options);
+        }
+    }
+    fromStreamAsync(inputStream, options) {
+        return new Promise((resolve, reject) => {
+            if (!inputStream) {
+                throw new Error('Must pass in a stream containing the Google auth settings.');
+            }
+            let s = '';
+            inputStream
+                .setEncoding('utf8')
+                .on('error', reject)
+                .on('data', chunk => (s += chunk))
+                .on('end', () => {
+                try {
+                    const data = JSON.parse(s);
+                    const r = this._cacheClientFromJSON(data, options);
+                    return resolve(r);
+                }
+                catch (err) {
+                    return reject(err);
+                }
+            });
+        });
+    }
+    /**
+     * Create a credentials instance using the given API key string.
+     * @param apiKey The API key string
+     * @param options An optional options object.
+     * @returns A JWT loaded from the key
+     */
+    fromAPIKey(apiKey, options) {
+        options = options || {};
+        const client = new jwtclient_1.JWT(options);
+        client.fromAPIKey(apiKey);
+        return client;
+    }
+    /**
+     * Determines whether the current operating system is Windows.
+     * @api private
+     */
+    _isWindows() {
+        const sys = os.platform();
+        if (sys && sys.length >= 3) {
+            if (sys.substring(0, 3).toLowerCase() === 'win') {
+                return true;
+            }
+        }
+        return false;
+    }
+    /**
+     * Run the Google Cloud SDK command that prints the default project ID
+     */
+    async getDefaultServiceProjectId() {
+        return new Promise(resolve => {
+            child_process_1.exec('gcloud config config-helper --format json', (err, stdout, stderr) => {
+                if (!err && stdout) {
+                    try {
+                        const projectId = JSON.parse(stdout).configuration.properties.core
+                            .project;
+                        resolve(projectId);
+                        return;
+                    }
+                    catch (e) {
+                        // ignore errors
+                    }
+                }
+                resolve(null);
+            });
+        });
+    }
+    /**
+     * Loads the project id from environment variables.
+     * @api private
+     */
+    getProductionProjectId() {
+        return (process.env['GCLOUD_PROJECT'] ||
+            process.env['GOOGLE_CLOUD_PROJECT'] ||
+            process.env['gcloud_project'] ||
+            process.env['google_cloud_project']);
+    }
+    /**
+     * Loads the project id from the GOOGLE_APPLICATION_CREDENTIALS json file.
+     * @api private
+     */
+    async getFileProjectId() {
+        if (this.cachedCredential) {
+            // Try to read the project ID from the cached credentials file
+            return this.cachedCredential.projectId;
+        }
+        // Ensure the projectId is loaded from the keyFile if available.
+        if (this.keyFilename) {
+            const creds = await this.getClient();
+            if (creds && creds.projectId) {
+                return creds.projectId;
+            }
+        }
+        // Try to load a credentials file and read its project ID
+        const r = await this._tryGetApplicationCredentialsFromEnvironmentVariable();
+        if (r) {
+            return r.projectId;
+        }
+        else {
+            return null;
+        }
+    }
+    /**
+     * Gets the Compute Engine project ID if it can be inferred.
+     */
+    async getGCEProjectId() {
+        try {
+            const r = await gcpMetadata.project('project-id');
+            return r;
+        }
+        catch (e) {
+            // Ignore any errors
+            return null;
+        }
+    }
+    getCredentials(callback) {
+        if (callback) {
+            this.getCredentialsAsync().then(r => callback(null, r), callback);
+        }
+        else {
+            return this.getCredentialsAsync();
+        }
+    }
+    async getCredentialsAsync() {
+        await this.getClient();
+        if (this.jsonContent) {
+            const credential = {
+                client_email: this.jsonContent.client_email,
+                private_key: this.jsonContent.private_key,
+            };
+            return credential;
+        }
+        const isGCE = await this._checkIsGCE();
+        if (!isGCE) {
+            throw new Error('Unknown error.');
+        }
+        // For GCE, return the service account details from the metadata server
+        // NOTE: The trailing '/' at the end of service-accounts/ is very important!
+        // The GCF metadata server doesn't respect querystring params if this / is
+        // not included.
+        const data = await gcpMetadata.instance({
+            property: 'service-accounts/',
+            params: { recursive: 'true' },
+        });
+        if (!data || !data.default || !data.default.email) {
+            throw new Error('Failure from metadata server.');
+        }
+        return { client_email: data.default.email };
+    }
+    /**
+     * Automatically obtain a client based on the provided configuration.  If no
+     * options were passed, use Application Default Credentials.
+     */
+    async getClient(options) {
+        if (options) {
+            throw new Error('Passing options to getClient is forbidden in v5.0.0. Use new GoogleAuth(opts) instead.');
+        }
+        if (!this.cachedCredential) {
+            if (this.jsonContent) {
+                this._cacheClientFromJSON(this.jsonContent, this.clientOptions);
+            }
+            else if (this.keyFilename) {
+                const filePath = path.resolve(this.keyFilename);
+                const stream = fs.createReadStream(filePath);
+                await this.fromStreamAsync(stream, this.clientOptions);
+            }
+            else {
+                await this.getApplicationDefaultAsync(this.clientOptions);
+            }
+        }
+        return this.cachedCredential;
+    }
+    /**
+     * Automatically obtain application default credentials, and return
+     * an access token for making requests.
+     */
+    async getAccessToken() {
+        const client = await this.getClient();
+        return (await client.getAccessToken()).token;
+    }
+    /**
+     * Obtain the HTTP headers that will provide authorization for a given
+     * request.
+     */
+    async getRequestHeaders(url) {
+        const client = await this.getClient();
+        return client.getRequestHeaders(url);
+    }
+    /**
+     * Obtain credentials for a request, then attach the appropriate headers to
+     * the request options.
+     * @param opts Axios or Request options on which to attach the headers
+     */
+    async authorizeRequest(opts) {
+        opts = opts || {};
+        const url = opts.url || opts.uri;
+        const client = await this.getClient();
+        const headers = await client.getRequestHeaders(url);
+        opts.headers = Object.assign(opts.headers || {}, headers);
+        return opts;
+    }
+    /**
+     * Automatically obtain application default credentials, and make an
+     * HTTP request using the given options.
+     * @param opts Axios request options for the HTTP request.
+     */
+    // tslint:disable-next-line no-any
+    async request(opts) {
+        const client = await this.getClient();
+        return client.request(opts);
+    }
+    /**
+     * Determine the compute environment in which the code is running.
+     */
+    getEnv() {
+        return envDetect_1.getEnv();
+    }
+    /**
+     * Sign the given data with the current private key, or go out
+     * to the IAM API to sign it.
+     * @param data The data to be signed.
+     */
+    async sign(data) {
+        const client = await this.getClient();
+        const crypto = crypto_1.createCrypto();
+        if (client instanceof jwtclient_1.JWT && client.key) {
+            const sign = await crypto.sign(client.key, data);
+            return sign;
+        }
+        const projectId = await this.getProjectId();
+        if (!projectId) {
+            throw new Error('Cannot sign data without a project ID.');
+        }
+        const creds = await this.getCredentials();
+        if (!creds.client_email) {
+            throw new Error('Cannot sign data without `client_email`.');
+        }
+        const id = `projects/${projectId}/serviceAccounts/${creds.client_email}`;
+        const res = await this.request({
+            method: 'POST',
+            url: `https://iam.googleapis.com/v1/${id}:signBlob`,
+            data: { bytesToSign: crypto.encodeBase64StringUtf8(data) },
+        });
+        return res.data.signature;
+    }
+}
+exports.GoogleAuth = GoogleAuth;
+/**
+ * Export DefaultTransporter as a static property of the class.
+ */
+GoogleAuth.DefaultTransporter = transporters_1.DefaultTransporter;
+//# sourceMappingURL=googleauth.js.map

node_modules/google-auth-library/build/src/auth/iam.d.ts

@@ -0,0 +1,53 @@
+/**
+ * Copyright 2014 Google Inc. All Rights Reserved.
+ *
+ * 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.
+ */
+export interface RequestMetadata {
+    'x-goog-iam-authority-selector': string;
+    'x-goog-iam-authorization-token': string;
+}
+export declare class IAMAuth {
+    selector: string;
+    token: string;
+    /**
+     * IAM credentials.
+     *
+     * @param selector the iam authority selector
+     * @param token the token
+     * @constructor
+     */
+    constructor(selector: string, token: string);
+    /**
+     * Indicates whether the credential requires scopes to be created by calling
+     * createdScoped before use.
+     * @deprecated
+     * @return always false
+     */
+    createScopedRequired(): boolean;
+    /**
+     * Pass the selector and token to the metadataFn callback.
+     * @deprecated
+     * @param unused_uri is required of the credentials interface
+     * @param metadataFn a callback invoked with object containing request
+     * metadata.
+     */
+    getRequestMetadata(unusedUri: string | null, metadataFn: (err: Error | null, metadata?: RequestMetadata) => void): void;
+    /**
+     * Acquire the HTTP headers required to make an authenticated request.
+     */
+    getRequestHeaders(): {
+        'x-goog-iam-authority-selector': string;
+        'x-goog-iam-authorization-token': string;
+    };
+}

node_modules/google-auth-library/build/src/auth/iam.js

@@ -0,0 +1,66 @@
+"use strict";
+/**
+ * Copyright 2014 Google Inc. All Rights Reserved.
+ *
+ * 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 });
+const messages = require("../messages");
+class IAMAuth {
+    /**
+     * IAM credentials.
+     *
+     * @param selector the iam authority selector
+     * @param token the token
+     * @constructor
+     */
+    constructor(selector, token) {
+        this.selector = selector;
+        this.token = token;
+        this.selector = selector;
+        this.token = token;
+    }
+    /**
+     * Indicates whether the credential requires scopes to be created by calling
+     * createdScoped before use.
+     * @deprecated
+     * @return always false
+     */
+    createScopedRequired() {
+        // IAM authorization does not use scopes.
+        messages.warn(messages.IAM_CREATE_SCOPED_DEPRECATED);
+        return false;
+    }
+    /**
+     * Pass the selector and token to the metadataFn callback.
+     * @deprecated
+     * @param unused_uri is required of the credentials interface
+     * @param metadataFn a callback invoked with object containing request
+     * metadata.
+     */
+    getRequestMetadata(unusedUri, metadataFn) {
+        messages.warn(messages.IAM_GET_REQUEST_METADATA_DEPRECATED);
+        metadataFn(null, this.getRequestHeaders());
+    }
+    /**
+     * Acquire the HTTP headers required to make an authenticated request.
+     */
+    getRequestHeaders() {
+        return {
+            'x-goog-iam-authority-selector': this.selector,
+            'x-goog-iam-authorization-token': this.token,
+        };
+    }
+}
+exports.IAMAuth = IAMAuth;
+//# sourceMappingURL=iam.js.map

node_modules/google-auth-library/build/src/auth/jwtaccess.d.ts

@@ -0,0 +1,79 @@
+/**
+ * Copyright 2015 Google Inc. All Rights Reserved.
+ *
+ * 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.
+ */
+/// <reference types="node" />
+import * as stream from 'stream';
+import { JWTInput } from './credentials';
+import { Headers, RequestMetadataResponse } from './oauth2client';
+export interface Claims {
+    [index: string]: string;
+}
+export declare class JWTAccess {
+    email?: string | null;
+    key?: string | null;
+    keyId?: string | null;
+    projectId?: string;
+    private cache;
+    /**
+     * JWTAccess service account credentials.
+     *
+     * Create a new access token by using the credential to create a new JWT token
+     * that's recognized as the access token.
+     *
+     * @param email the service account email address.
+     * @param key the private key that will be used to sign the token.
+     * @param keyId the ID of the private key used to sign the token.
+     */
+    constructor(email?: string | null, key?: string | null, keyId?: string | null);
+    /**
+     * Indicates whether the credential requires scopes to be created by calling
+     * createdScoped before use.
+     * @deprecated
+     * @return always false
+     */
+    createScopedRequired(): boolean;
+    /**
+     * Get a non-expired access token, after refreshing if necessary.
+     *
+     * @param authURI The URI being authorized.
+     * @param additionalClaims An object with a set of additional claims to
+     * include in the payload.
+     * @deprecated Please use `getRequestHeaders` instead.
+     * @returns An object that includes the authorization header.
+     */
+    getRequestMetadata(url: string, additionalClaims?: Claims): RequestMetadataResponse;
+    /**
+     * Get a non-expired access token, after refreshing if necessary.
+     *
+     * @param url The URI being authorized.
+     * @param additionalClaims An object with a set of additional claims to
+     * include in the payload.
+     * @returns An object that includes the authorization header.
+     */
+    getRequestHeaders(url: string, additionalClaims?: Claims): Headers;
+    /**
+     * Create a JWTAccess credentials instance using the given input options.
+     * @param json The input object.
+     */
+    fromJSON(json: JWTInput): void;
+    /**
+     * Create a JWTAccess 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;
+    private fromStreamAsync;
+}

node_modules/google-auth-library/build/src/auth/jwtaccess.js

@@ -0,0 +1,161 @@
+"use strict";
+/**
+ * Copyright 2015 Google Inc. All Rights Reserved.
+ *
+ * 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 });
+const jws = require("jws");
+const LRU = require("lru-cache");
+const messages = require("../messages");
+const DEFAULT_HEADER = {
+    alg: 'RS256',
+    typ: 'JWT',
+};
+class JWTAccess {
+    /**
+     * JWTAccess service account credentials.
+     *
+     * Create a new access token by using the credential to create a new JWT token
+     * that's recognized as the access token.
+     *
+     * @param email the service account email address.
+     * @param key the private key that will be used to sign the token.
+     * @param keyId the ID of the private key used to sign the token.
+     */
+    constructor(email, key, keyId) {
+        this.cache = new LRU({ max: 500, maxAge: 60 * 60 * 1000 });
+        this.email = email;
+        this.key = key;
+        this.keyId = keyId;
+    }
+    /**
+     * Indicates whether the credential requires scopes to be created by calling
+     * createdScoped before use.
+     * @deprecated
+     * @return always false
+     */
+    createScopedRequired() {
+        // JWT Header authentication does not use scopes.
+        messages.warn(messages.JWT_ACCESS_CREATE_SCOPED_DEPRECATED);
+        return false;
+    }
+    /**
+     * Get a non-expired access token, after refreshing if necessary.
+     *
+     * @param authURI The URI being authorized.
+     * @param additionalClaims An object with a set of additional claims to
+     * include in the payload.
+     * @deprecated Please use `getRequestHeaders` instead.
+     * @returns An object that includes the authorization header.
+     */
+    getRequestMetadata(url, additionalClaims) {
+        messages.warn(messages.JWT_ACCESS_GET_REQUEST_METADATA_DEPRECATED);
+        return { headers: this.getRequestHeaders(url, additionalClaims) };
+    }
+    /**
+     * Get a non-expired access token, after refreshing if necessary.
+     *
+     * @param url The URI being authorized.
+     * @param additionalClaims An object with a set of additional claims to
+     * include in the payload.
+     * @returns An object that includes the authorization header.
+     */
+    getRequestHeaders(url, additionalClaims) {
+        const cachedToken = this.cache.get(url);
+        if (cachedToken) {
+            return cachedToken;
+        }
+        const iat = Math.floor(new Date().getTime() / 1000);
+        const exp = iat + 3600; // 3600 seconds = 1 hour
+        // The payload used for signed JWT headers has:
+        // iss == sub == <client email>
+        // aud == <the authorization uri>
+        const defaultClaims = {
+            iss: this.email,
+            sub: this.email,
+            aud: url,
+            exp,
+            iat,
+        };
+        // if additionalClaims are provided, ensure they do not collide with
+        // other required claims.
+        if (additionalClaims) {
+            for (const claim in defaultClaims) {
+                if (additionalClaims[claim]) {
+                    throw new Error(`The '${claim}' property is not allowed when passing additionalClaims. This claim is included in the JWT by default.`);
+                }
+            }
+        }
+        const header = this.keyId
+            ? Object.assign(Object.assign({}, DEFAULT_HEADER), { kid: this.keyId }) : DEFAULT_HEADER;
+        const payload = Object.assign(defaultClaims, additionalClaims);
+        // Sign the jwt and add it to the cache
+        const signedJWT = jws.sign({ header, payload, secret: this.key });
+        const headers = { Authorization: `Bearer ${signedJWT}` };
+        this.cache.set(url, headers);
+        return headers;
+    }
+    /**
+     * Create a JWTAccess credentials instance using the given input options.
+     * @param json The input object.
+     */
+    fromJSON(json) {
+        if (!json) {
+            throw new Error('Must pass in a JSON object containing the service account auth settings.');
+        }
+        if (!json.client_email) {
+            throw new Error('The incoming JSON object does not contain a client_email field');
+        }
+        if (!json.private_key) {
+            throw new Error('The incoming JSON object does not contain a private_key field');
+        }
+        // Extract the relevant information from the json key file.
+        this.email = json.client_email;
+        this.key = json.private_key;
+        this.keyId = json.private_key_id;
+        this.projectId = json.project_id;
+    }
+    fromStream(inputStream, callback) {
+        if (callback) {
+            this.fromStreamAsync(inputStream).then(r => callback(), callback);
+        }
+        else {
+            return this.fromStreamAsync(inputStream);
+        }
+    }
+    fromStreamAsync(inputStream) {
+        return new Promise((resolve, reject) => {
+            if (!inputStream) {
+                reject(new Error('Must pass in a stream containing the service account auth settings.'));
+            }
+            let s = '';
+            inputStream
+                .setEncoding('utf8')
+                .on('data', chunk => (s += chunk))
+                .on('error', reject)
+                .on('end', () => {
+                try {
+                    const data = JSON.parse(s);
+                    this.fromJSON(data);
+                    resolve();
+                }
+                catch (err) {
+                    reject(err);
+                }
+            });
+        });
+    }
+}
+exports.JWTAccess = JWTAccess;
+//# sourceMappingURL=jwtaccess.js.map

node_modules/google-auth-library/build/src/auth/jwtclient.d.ts

@@ -0,0 +1,119 @@
+/**
+ * Copyright 2013 Google Inc. All Rights Reserved.
+ *
+ * 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.
+ */
+/// <reference types="node" />
+import { GoogleToken } from 'gtoken';
+import * as stream from 'stream';
+import { CredentialBody, Credentials, JWTInput } from './credentials';
+import { GetTokenResponse, OAuth2Client, RefreshOptions, RequestMetadataResponse } from './oauth2client';
+export interface JWTOptions extends RefreshOptions {
+    email?: string;
+    keyFile?: string;
+    key?: string;
+    keyId?: string;
+    scopes?: string | string[];
+    subject?: string;
+    additionalClaims?: {};
+}
+export declare class JWT extends OAuth2Client {
+    email?: string;
+    keyFile?: string;
+    key?: string;
+    keyId?: string;
+    scopes?: string | string[];
+    scope?: string;
+    subject?: string;
+    gtoken?: GoogleToken;
+    additionalClaims?: {};
+    private access?;
+    /**
+     * JWT service account credentials.
+     *
+     * Retrieve access token using gtoken.
+     *
+     * @param email service account email address.
+     * @param keyFile path to private key file.
+     * @param key value of key
+     * @param scopes list of requested scopes or a single scope.
+     * @param subject impersonated account's email address.
+     * @param key_id the ID of the key
+     */
+    constructor(options: JWTOptions);
+    constructor(email?: string, keyFile?: string, key?: string, scopes?: string | string[], subject?: string, keyId?: string);
+    /**
+     * Creates a copy of the credential with the specified scopes.
+     * @param scopes List of requested scopes or a single scope.
+     * @return The cloned instance.
+     */
+    createScoped(scopes?: string | string[]): JWT;
+    /**
+     * Obtains the metadata to be sent with the request.
+     *
+     * @param url the URI being authorized.
+     */
+    protected getRequestMetadataAsync(url?: string | null): Promise<RequestMetadataResponse>;
+    /**
+     * Indicates whether the credential requires scopes to be created by calling
+     * createScoped before use.
+     * @deprecated
+     * @return false if createScoped does not need to be called.
+     */
+    createScopedRequired(): boolean;
+    /**
+     * Determine if there are currently scopes available.
+     */
+    private hasScopes;
+    /**
+     * Get the initial access token using gToken.
+     * @param callback Optional callback.
+     * @returns Promise that resolves with credentials
+     */
+    authorize(): Promise<Credentials>;
+    authorize(callback: (err: Error | null, result?: Credentials) => void): void;
+    private authorizeAsync;
+    /**
+     * Refreshes the access token.
+     * @param refreshToken ignored
+     * @private
+     */
+    protected refreshTokenNoCache(refreshToken?: string | null): Promise<GetTokenResponse>;
+    /**
+     * Create a gToken if it doesn't already exist.
+     */
+    private createGToken;
+    /**
+     * Create a JWT credentials instance using the given input options.
+     * @param json The input object.
+     */
+    fromJSON(json: JWTInput): void;
+    /**
+     * Create a JWT 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 | null) => void): void;
+    private fromStreamAsync;
+    /**
+     * Creates a JWT credentials instance using an API Key for authentication.
+     * @param apiKey The API Key in string form.
+     */
+    fromAPIKey(apiKey: string): void;
+    /**
+     * Using the key or keyFile on the JWT client, obtain an object that contains
+     * the key and the client email.
+     */
+    getCredentials(): Promise<CredentialBody>;
+}

node_modules/google-auth-library/build/src/auth/jwtclient.js

@@ -0,0 +1,232 @@
+"use strict";
+/**
+ * Copyright 2013 Google Inc. All Rights Reserved.
+ *
+ * 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 });
+const gtoken_1 = require("gtoken");
+const messages = require("../messages");
+const jwtaccess_1 = require("./jwtaccess");
+const oauth2client_1 = require("./oauth2client");
+class JWT extends oauth2client_1.OAuth2Client {
+    constructor(optionsOrEmail, keyFile, key, scopes, subject, keyId) {
+        const opts = optionsOrEmail && typeof optionsOrEmail === 'object'
+            ? optionsOrEmail
+            : { email: optionsOrEmail, keyFile, key, keyId, scopes, subject };
+        super({ eagerRefreshThresholdMillis: opts.eagerRefreshThresholdMillis });
+        this.email = opts.email;
+        this.keyFile = opts.keyFile;
+        this.key = opts.key;
+        this.keyId = opts.keyId;
+        this.scopes = opts.scopes;
+        this.subject = opts.subject;
+        this.additionalClaims = opts.additionalClaims;
+        this.credentials = { refresh_token: 'jwt-placeholder', expiry_date: 1 };
+    }
+    /**
+     * Creates a copy of the credential with the specified scopes.
+     * @param scopes List of requested scopes or a single scope.
+     * @return The cloned instance.
+     */
+    createScoped(scopes) {
+        return new JWT({
+            email: this.email,
+            keyFile: this.keyFile,
+            key: this.key,
+            keyId: this.keyId,
+            scopes,
+            subject: this.subject,
+            additionalClaims: this.additionalClaims,
+        });
+    }
+    /**
+     * Obtains the metadata to be sent with the request.
+     *
+     * @param url the URI being authorized.
+     */
+    async getRequestMetadataAsync(url) {
+        if (!this.apiKey && !this.hasScopes() && url) {
+            if (this.additionalClaims &&
+                this.additionalClaims.target_audience) {
+                const { tokens } = await this.refreshToken();
+                return { headers: { Authorization: `Bearer ${tokens.id_token}` } };
+            }
+            else {
+                // no scopes have been set, but a uri has been provided. Use JWTAccess
+                // credentials.
+                if (!this.access) {
+                    this.access = new jwtaccess_1.JWTAccess(this.email, this.key, this.keyId);
+                }
+                const headers = await this.access.getRequestHeaders(url, this.additionalClaims);
+                return { headers };
+            }
+        }
+        else {
+            return super.getRequestMetadataAsync(url);
+        }
+    }
+    /**
+     * Indicates whether the credential requires scopes to be created by calling
+     * createScoped before use.
+     * @deprecated
+     * @return false if createScoped does not need to be called.
+     */
+    createScopedRequired() {
+        messages.warn(messages.JWT_CREATE_SCOPED_DEPRECATED);
+        return !this.hasScopes();
+    }
+    /**
+     * Determine if there are currently scopes available.
+     */
+    hasScopes() {
+        if (!this.scopes) {
+            return false;
+        }
+        // For arrays, check the array length.
+        if (this.scopes instanceof Array) {
+            return this.scopes.length > 0;
+        }
+        // For others, convert to a string and check the length.
+        return String(this.scopes).length > 0;
+    }
+    authorize(callback) {
+        if (callback) {
+            this.authorizeAsync().then(r => callback(null, r), callback);
+        }
+        else {
+            return this.authorizeAsync();
+        }
+    }
+    async authorizeAsync() {
+        const result = await this.refreshToken();
+        if (!result) {
+            throw new Error('No result returned');
+        }
+        this.credentials = result.tokens;
+        this.credentials.refresh_token = 'jwt-placeholder';
+        this.key = this.gtoken.key;
+        this.email = this.gtoken.iss;
+        return result.tokens;
+    }
+    /**
+     * Refreshes the access token.
+     * @param refreshToken ignored
+     * @private
+     */
+    async refreshTokenNoCache(refreshToken) {
+        const gtoken = this.createGToken();
+        const token = await gtoken.getToken();
+        const tokens = {
+            access_token: token.access_token,
+            token_type: 'Bearer',
+            expiry_date: gtoken.expiresAt,
+            id_token: gtoken.idToken,
+        };
+        this.emit('tokens', tokens);
+        return { res: null, tokens };
+    }
+    /**
+     * Create a gToken if it doesn't already exist.
+     */
+    createGToken() {
+        if (!this.gtoken) {
+            this.gtoken = new gtoken_1.GoogleToken({
+                iss: this.email,
+                sub: this.subject,
+                scope: this.scopes,
+                keyFile: this.keyFile,
+                key: this.key,
+                additionalClaims: this.additionalClaims,
+            });
+        }
+        return this.gtoken;
+    }
+    /**
+     * Create a JWT credentials instance using the given input options.
+     * @param json The input object.
+     */
+    fromJSON(json) {
+        if (!json) {
+            throw new Error('Must pass in a JSON object containing the service account auth settings.');
+        }
+        if (!json.client_email) {
+            throw new Error('The incoming JSON object does not contain a client_email field');
+        }
+        if (!json.private_key) {
+            throw new Error('The incoming JSON object does not contain a private_key field');
+        }
+        // Extract the relevant information from the json key file.
+        this.email = json.client_email;
+        this.key = json.private_key;
+        this.keyId = json.private_key_id;
+        this.projectId = json.project_id;
+    }
+    fromStream(inputStream, callback) {
+        if (callback) {
+            this.fromStreamAsync(inputStream).then(r => callback(), callback);
+        }
+        else {
+            return this.fromStreamAsync(inputStream);
+        }
+    }
+    fromStreamAsync(inputStream) {
+        return new Promise((resolve, reject) => {
+            if (!inputStream) {
+                throw new Error('Must pass in a stream containing the service account auth settings.');
+            }
+            let s = '';
+            inputStream
+                .setEncoding('utf8')
+                .on('error', reject)
+                .on('data', chunk => (s += chunk))
+                .on('end', () => {
+                try {
+                    const data = JSON.parse(s);
+                    this.fromJSON(data);
+                    resolve();
+                }
+                catch (e) {
+                    reject(e);
+                }
+            });
+        });
+    }
+    /**
+     * Creates a JWT credentials instance using an API Key for authentication.
+     * @param apiKey The API Key in string form.
+     */
+    fromAPIKey(apiKey) {
+        if (typeof apiKey !== 'string') {
+            throw new Error('Must provide an API Key string.');
+        }
+        this.apiKey = apiKey;
+    }
+    /**
+     * Using the key or keyFile on the JWT client, obtain an object that contains
+     * the key and the client email.
+     */
+    async getCredentials() {
+        if (this.key) {
+            return { private_key: this.key, client_email: this.email };
+        }
+        else if (this.keyFile) {
+            const gtoken = this.createGToken();
+            const creds = await gtoken.getCredentials(this.keyFile);
+            return { private_key: creds.privateKey, client_email: creds.clientEmail };
+        }
+        throw new Error('A key or a keyFile must be provided to getCredentials.');
+    }
+}
+exports.JWT = JWT;
+//# sourceMappingURL=jwtclient.js.map

node_modules/google-auth-library/build/src/auth/loginticket.d.ts

@@ -0,0 +1,150 @@
+/**
+ * Copyright 2014 Google Inc. All Rights Reserved.
+ *
+ * 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.
+ */
+export declare class LoginTicket {
+    private envelope?;
+    private payload?;
+    /**
+     * Create a simple class to extract user ID from an ID Token
+     *
+     * @param {string} env Envelope of the jwt
+     * @param {TokenPayload} pay Payload of the jwt
+     * @constructor
+     */
+    constructor(env?: string, pay?: TokenPayload);
+    getEnvelope(): string | undefined;
+    getPayload(): TokenPayload | undefined;
+    /**
+     * Create a simple class to extract user ID from an ID Token
+     *
+     * @return The user ID
+     */
+    getUserId(): string | null;
+    /**
+     * Returns attributes from the login ticket.  This can contain
+     * various information about the user session.
+     *
+     * @return The envelope and payload
+     */
+    getAttributes(): {
+        envelope: string | undefined;
+        payload: TokenPayload | undefined;
+    };
+}
+export interface TokenPayload {
+    /**
+     * The Issuer Identifier for the Issuer of the response. Always
+     * https://accounts.google.com or accounts.google.com for Google ID tokens.
+     */
+    iss: string;
+    /**
+     * Access token hash. Provides validation that the access token is tied to the
+     * identity token. If the ID token is issued with an access token in the
+     * server flow, this is always included. This can be used as an alternate
+     * mechanism to protect against cross-site request forgery attacks, but if you
+     * follow Step 1 and Step 3 it is not necessary to verify the access token.
+     */
+    at_hash?: string;
+    /**
+     * True if the user's e-mail address has been verified; otherwise false.
+     */
+    email_verified?: boolean;
+    /**
+     * An identifier for the user, unique among all Google accounts and never
+     * reused. A Google account can have multiple emails at different points in
+     * time, but the sub value is never changed. Use sub within your application
+     * as the unique-identifier key for the user.
+     */
+    sub: string;
+    /**
+     * The client_id of the authorized presenter. This claim is only needed when
+     * the party requesting the ID token is not the same as the audience of the ID
+     * token. This may be the case at Google for hybrid apps where a web
+     * application and Android app have a different client_id but share the same
+     * project.
+     */
+    azp?: string;
+    /**
+     * The user's email address. This may not be unique and is not suitable for
+     * use as a primary key. Provided only if your scope included the string
+     * "email".
+     */
+    email?: string;
+    /**
+     * The URL of the user's profile page. Might be provided when:
+     * - The request scope included the string "profile"
+     * - The ID token is returned from a token refresh
+     * - When profile claims are present, you can use them to update your app's
+     * user records. Note that this claim is never guaranteed to be present.
+     */
+    profile?: string;
+    /**
+     * The URL of the user's profile picture. Might be provided when:
+     * - The request scope included the string "profile"
+     * - The ID token is returned from a token refresh
+     * - When picture claims are present, you can use them to update your app's
+     * user records. Note that this claim is never guaranteed to be present.
+     */
+    picture?: string;
+    /**
+     * The user's full name, in a displayable form. Might be provided when:
+     * - The request scope included the string "profile"
+     * - The ID token is returned from a token refresh
+     * - When name claims are present, you can use them to update your app's user
+     * records. Note that this claim is never guaranteed to be present.
+     */
+    name?: string;
+    /**
+     * The user's given name, in a displayable form. Might be provided when:
+     * - The request scope included the string "profile"
+     * - The ID token is returned from a token refresh
+     * - When name claims are present, you can use them to update your app's user
+     * records. Note that this claim is never guaranteed to be present.
+     */
+    given_name?: string;
+    /**
+     * The user's family name, in a displayable form. Might be provided when:
+     * - The request scope included the string "profile"
+     * - The ID token is returned from a token refresh
+     * - When name claims are present, you can use them to update your app's user
+     * records. Note that this claim is never guaranteed to be present.
+     */
+    family_name?: string;
+    /**
+     * Identifies the audience that this ID token is intended for. It must be one
+     * of the OAuth 2.0 client IDs of your application.
+     */
+    aud: string;
+    /**
+     * The time the ID token was issued, represented in Unix time (integer
+     * seconds).
+     */
+    iat: number;
+    /**
+     * The time the ID token expires, represented in Unix time (integer seconds).
+     */
+    exp: number;
+    /**
+     * The value of the nonce supplied by your app in the authentication request.
+     * You should enforce protection against replay attacks by ensuring it is
+     * presented only once.
+     */
+    nonce?: string;
+    /**
+     * The hosted G Suite domain of the user. Provided only if the user belongs to
+     * a hosted domain.
+     */
+    hd?: string;
+}

node_modules/google-auth-library/build/src/auth/loginticket.js

@@ -0,0 +1,59 @@
+"use strict";
+/**
+ * Copyright 2014 Google Inc. All Rights Reserved.
+ *
+ * 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 });
+class LoginTicket {
+    /**
+     * Create a simple class to extract user ID from an ID Token
+     *
+     * @param {string} env Envelope of the jwt
+     * @param {TokenPayload} pay Payload of the jwt
+     * @constructor
+     */
+    constructor(env, pay) {
+        this.envelope = env;
+        this.payload = pay;
+    }
+    getEnvelope() {
+        return this.envelope;
+    }
+    getPayload() {
+        return this.payload;
+    }
+    /**
+     * Create a simple class to extract user ID from an ID Token
+     *
+     * @return The user ID
+     */
+    getUserId() {
+        const payload = this.getPayload();
+        if (payload && payload.sub) {
+            return payload.sub;
+        }
+        return null;
+    }
+    /**
+     * Returns attributes from the login ticket.  This can contain
+     * various information about the user session.
+     *
+     * @return The envelope and payload
+     */
+    getAttributes() {
+        return { envelope: this.getEnvelope(), payload: this.getPayload() };
+    }
+}
+exports.LoginTicket = LoginTicket;
+//# sourceMappingURL=loginticket.js.map

node_modules/google-auth-library/build/src/auth/oauth2client.d.ts

@@ -0,0 +1,474 @@
+/**
+ * Copyright 2019 Google LLC. All Rights Reserved.
+ *
+ * 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 { GaxiosError, GaxiosOptions, GaxiosPromise, GaxiosResponse } from 'gaxios';
+import { JwkCertificate } from '../crypto/crypto';
+import { BodyResponseCallback } from '../transporters';
+import { AuthClient } from './authclient';
+import { Credentials } from './credentials';
+import { LoginTicket } from './loginticket';
+export interface Certificates {
+    [index: string]: string | JwkCertificate;
+}
+export interface Headers {
+    [index: string]: string;
+}
+export declare enum CodeChallengeMethod {
+    Plain = "plain",
+    S256 = "S256"
+}
+export declare enum CertificateFormat {
+    PEM = "PEM",
+    JWK = "JWK"
+}
+export interface GetTokenOptions {
+    code: string;
+    codeVerifier?: string;
+    /**
+     * The client ID for your application. The value passed into the constructor
+     * will be used if not provided. Must match any client_id option passed to
+     * a corresponding call to generateAuthUrl.
+     */
+    client_id?: string;
+    /**
+     * Determines where the API server redirects the user after the user
+     * completes the authorization flow. The value passed into the constructor
+     * will be used if not provided. Must match any redirect_uri option passed to
+     * a corresponding call to generateAuthUrl.
+     */
+    redirect_uri?: string;
+}
+export interface TokenInfo {
+    /**
+     * The application that is the intended user of the access token.
+     */
+    aud: string;
+    /**
+     * This value lets you correlate profile information from multiple Google
+     * APIs. It is only present in the response if you included the profile scope
+     * in your request in step 1. The field value is an immutable identifier for
+     * the logged-in user that can be used to create and manage user sessions in
+     * your application. The identifier is the same regardless of which client ID
+     * is used to retrieve it. This enables multiple applications in the same
+     * organization to correlate profile information.
+     */
+    user_id?: string;
+    /**
+     * An array of scopes that the user granted access to.
+     */
+    scopes: string[];
+    /**
+     * The datetime when the token becomes invalid.
+     */
+    expiry_date: number;
+    /**
+     * An identifier for the user, unique among all Google accounts and never
+     * reused. A Google account can have multiple emails at different points in
+     * time, but the sub value is never changed. Use sub within your application
+     * as the unique-identifier key for the user.
+     */
+    sub?: string;
+    /**
+     * The client_id of the authorized presenter. This claim is only needed when
+     * the party requesting the ID token is not the same as the audience of the ID
+     * token. This may be the case at Google for hybrid apps where a web
+     * application and Android app have a different client_id but share the same
+     * project.
+     */
+    azp?: string;
+    /**
+     * Indicates whether your application can refresh access tokens
+     * when the user is not present at the browser. Valid parameter values are
+     * 'online', which is the default value, and 'offline'. Set the value to
+     * 'offline' if your application needs to refresh access tokens when the user
+     * is not present at the browser. This value instructs the Google
+     * authorization server to return a refresh token and an access token the
+     * first time that your application exchanges an authorization code for
+     * tokens.
+     */
+    access_type?: string;
+}
+export interface GenerateAuthUrlOpts {
+    /**
+     * Recommended. Indicates whether your application can refresh access tokens
+     * when the user is not present at the browser. Valid parameter values are
+     * 'online', which is the default value, and 'offline'. Set the value to
+     * 'offline' if your application needs to refresh access tokens when the user
+     * is not present at the browser. This value instructs the Google
+     * authorization server to return a refresh token and an access token the
+     * first time that your application exchanges an authorization code for
+     * tokens.
+     */
+    access_type?: string;
+    /**
+     * The hd (hosted domain) parameter streamlines the login process for G Suite
+     * hosted accounts. By including the domain of the G Suite user (for example,
+     * mycollege.edu), you can indicate that the account selection UI should be
+     * optimized for accounts at that domain. To optimize for G Suite accounts
+     * generally instead of just one domain, use an asterisk: hd=*.
+     * Don't rely on this UI optimization to control who can access your app,
+     * as client-side requests can be modified. Be sure to validate that the
+     * returned ID token has an hd claim value that matches what you expect
+     * (e.g. mycolledge.edu). Unlike the request parameter, the ID token claim is
+     * contained within a security token from Google, so the value can be trusted.
+     */
+    hd?: string;
+    /**
+     * The 'response_type' will always be set to 'CODE'.
+     */
+    response_type?: string;
+    /**
+     * The client ID for your application. The value passed into the constructor
+     * will be used if not provided. You can find this value in the API Console.
+     */
+    client_id?: string;
+    /**
+     * Determines where the API server redirects the user after the user
+     * completes the authorization flow. The value must exactly match one of the
+     * 'redirect_uri' values listed for your project in the API Console. Note that
+     * the http or https scheme, case, and trailing slash ('/') must all match.
+     * The value passed into the constructor will be used if not provided.
+     */
+    redirect_uri?: string;
+    /**
+     * Required. A space-delimited list of scopes that identify the resources that
+     * your application could access on the user's behalf. These values inform the
+     * consent screen that Google displays to the user. Scopes enable your
+     * application to only request access to the resources that it needs while
+     * also enabling users to control the amount of access that they grant to your
+     * application. Thus, there is an inverse relationship between the number of
+     * scopes requested and the likelihood of obtaining user consent. The
+     * OAuth 2.0 API Scopes document provides a full list of scopes that you might
+     * use to access Google APIs. We recommend that your application request
+     * access to authorization scopes in context whenever possible. By requesting
+     * access to user data in context, via incremental authorization, you help
+     * users to more easily understand why your application needs the access it is
+     * requesting.
+     */
+    scope?: string[] | string;
+    /**
+     * Recommended. Specifies any string value that your application uses to
+     * maintain state between your authorization request and the authorization
+     * server's response. The server returns the exact value that you send as a
+     * name=value pair in the hash (#) fragment of the 'redirect_uri' after the
+     * user consents to or denies your application's access request. You can use
+     * this parameter for several purposes, such as directing the user to the
+     * correct resource in your application, sending nonces, and mitigating
+     * cross-site request forgery. Since your redirect_uri can be guessed, using a
+     * state value can increase your assurance that an incoming connection is the
+     * result of an authentication request. If you generate a random string or
+     * encode the hash of a cookie or another value that captures the client's
+     * state, you can validate the response to additionally ensure that the
+     * request and response originated in the same browser, providing protection
+     * against attacks such as cross-site request forgery. See the OpenID Connect
+     * documentation for an example of how to create and confirm a state token.
+     */
+    state?: string;
+    /**
+     * Optional. Enables applications to use incremental authorization to request
+     * access to additional scopes in context. If you set this parameter's value
+     * to true and the authorization request is granted, then the new access token
+     * will also cover any scopes to which the user previously granted the
+     * application access. See the incremental authorization section for examples.
+     */
+    include_granted_scopes?: boolean;
+    /**
+     * Optional. If your application knows which user is trying to authenticate,
+     * it can use this parameter to provide a hint to the Google Authentication
+     * Server. The server uses the hint to simplify the login flow either by
+     * prefilling the email field in the sign-in form or by selecting the
+     * appropriate multi-login session. Set the parameter value to an email
+     * address or sub identifier, which is equivalent to the user's Google ID.
+     */
+    login_hint?: string;
+    /**
+     * Optional. A space-delimited, case-sensitive list of prompts to present the
+     * user. If you don't specify this parameter, the user will be prompted only
+     * the first time your app requests access.  Possible values are:
+     *
+     * 'none' - Donot display any authentication or consent screens. Must not be
+     *        specified with other values.
+     * 'consent' - 	Prompt the user for consent.
+     * 'select_account' - Prompt the user to select an account.
+     */
+    prompt?: string;
+    /**
+     * Recommended. Specifies what method was used to encode a 'code_verifier'
+     * that will be used during authorization code exchange. This parameter must
+     * be used with the 'code_challenge' parameter. The value of the
+     * 'code_challenge_method' defaults to "plain" if not present in the request
+     * that includes a 'code_challenge'. The only supported values for this
+     * parameter are "S256" or "plain".
+     */
+    code_challenge_method?: CodeChallengeMethod;
+    /**
+     * Recommended. Specifies an encoded 'code_verifier' that will be used as a
+     * server-side challenge during authorization code exchange. This parameter
+     * must be used with the 'code_challenge' parameter described above.
+     */
+    code_challenge?: string;
+}
+export interface GetTokenCallback {
+    (err: GaxiosError | null, token?: Credentials | null, res?: GaxiosResponse | null): void;
+}
+export interface GetTokenResponse {
+    tokens: Credentials;
+    res: GaxiosResponse | null;
+}
+export interface GetAccessTokenCallback {
+    (err: GaxiosError | null, token?: string | null, res?: GaxiosResponse | null): void;
+}
+export interface GetAccessTokenResponse {
+    token?: string | null;
+    res?: GaxiosResponse | null;
+}
+export interface RefreshAccessTokenCallback {
+    (err: GaxiosError | null, credentials?: Credentials | null, res?: GaxiosResponse | null): void;
+}
+export interface RefreshAccessTokenResponse {
+    credentials: Credentials;
+    res: GaxiosResponse | null;
+}
+export interface RequestMetadataResponse {
+    headers: Headers;
+    res?: GaxiosResponse<void> | null;
+}
+export interface RequestMetadataCallback {
+    (err: GaxiosError | null, headers?: Headers, res?: GaxiosResponse<void> | null): void;
+}
+export interface GetFederatedSignonCertsCallback {
+    (err: GaxiosError | null, certs?: Certificates, response?: GaxiosResponse<void> | null): void;
+}
+export interface FederatedSignonCertsResponse {
+    certs: Certificates;
+    format: CertificateFormat;
+    res?: GaxiosResponse<void> | null;
+}
+export interface RevokeCredentialsResult {
+    success: boolean;
+}
+export interface VerifyIdTokenOptions {
+    idToken: string;
+    audience: string | string[];
+    maxExpiry?: number;
+}
+export interface OAuth2ClientOptions extends RefreshOptions {
+    clientId?: string;
+    clientSecret?: string;
+    redirectUri?: string;
+}
+export interface RefreshOptions {
+    eagerRefreshThresholdMillis?: number;
+}
+export declare class OAuth2Client extends AuthClient {
+    private redirectUri?;
+    private certificateCache;
+    private certificateExpiry;
+    private certificateCacheFormat;
+    protected refreshTokenPromises: Map<string, Promise<GetTokenResponse>>;
+    _clientId?: string;
+    _clientSecret?: string;
+    apiKey?: string;
+    projectId?: string;
+    eagerRefreshThresholdMillis: number;
+    /**
+     * Handles OAuth2 flow for Google APIs.
+     *
+     * @param clientId The authentication client ID.
+     * @param clientSecret The authentication client secret.
+     * @param redirectUri The URI to redirect to after completing the auth
+     * request.
+     * @param opts optional options for overriding the given parameters.
+     * @constructor
+     */
+    constructor(options?: OAuth2ClientOptions);
+    constructor(clientId?: string, clientSecret?: string, redirectUri?: string);
+    protected static readonly GOOGLE_TOKEN_INFO_URL = "https://oauth2.googleapis.com/tokeninfo";
+    /**
+     * The base URL for auth endpoints.
+     */
+    private static readonly GOOGLE_OAUTH2_AUTH_BASE_URL_;
+    /**
+     * The base endpoint for token retrieval.
+     */
+    private static readonly GOOGLE_OAUTH2_TOKEN_URL_;
+    /**
+     * The base endpoint to revoke tokens.
+     */
+    private static readonly GOOGLE_OAUTH2_REVOKE_URL_;
+    /**
+     * Google Sign on certificates in PEM format.
+     */
+    private static readonly GOOGLE_OAUTH2_FEDERATED_SIGNON_PEM_CERTS_URL_;
+    /**
+     * Google Sign on certificates in JWK format.
+     */
+    private static readonly GOOGLE_OAUTH2_FEDERATED_SIGNON_JWK_CERTS_URL_;
+    /**
+     * Clock skew - five minutes in seconds
+     */
+    private static readonly CLOCK_SKEW_SECS_;
+    /**
+     * Max Token Lifetime is one day in seconds
+     */
+    private static readonly MAX_TOKEN_LIFETIME_SECS_;
+    /**
+     * The allowed oauth token issuers.
+     */
+    private static readonly ISSUERS_;
+    /**
+     * Generates URL for consent page landing.
+     * @param opts Options.
+     * @return URL to consent page.
+     */
+    generateAuthUrl(opts?: GenerateAuthUrlOpts): string;
+    generateCodeVerifier(): void;
+    /**
+     * Convenience method to automatically generate a code_verifier, and it's
+     * resulting SHA256. If used, this must be paired with a S256
+     * code_challenge_method.
+     */
+    generateCodeVerifierAsync(): Promise<{
+        codeVerifier: string;
+        codeChallenge: string;
+    }>;
+    /**
+     * Gets the access token for the given code.
+     * @param code The authorization code.
+     * @param callback Optional callback fn.
+     */
+    getToken(code: string): Promise<GetTokenResponse>;
+    getToken(options: GetTokenOptions): Promise<GetTokenResponse>;
+    getToken(code: string, callback: GetTokenCallback): void;
+    getToken(options: GetTokenOptions, callback: GetTokenCallback): void;
+    private getTokenAsync;
+    /**
+     * Refreshes the access token.
+     * @param refresh_token Existing refresh token.
+     * @private
+     */
+    protected refreshToken(refreshToken?: string | null): Promise<GetTokenResponse>;
+    protected refreshTokenNoCache(refreshToken?: string | null): Promise<GetTokenResponse>;
+    /**
+     * Retrieves the access token using refresh token
+     *
+     * @deprecated use getRequestHeaders instead.
+     * @param callback callback
+     */
+    refreshAccessToken(): Promise<RefreshAccessTokenResponse>;
+    refreshAccessToken(callback: RefreshAccessTokenCallback): void;
+    private refreshAccessTokenAsync;
+    /**
+     * Get a non-expired access token, after refreshing if necessary
+     *
+     * @param callback Callback to call with the access token
+     */
+    getAccessToken(): Promise<GetAccessTokenResponse>;
+    getAccessToken(callback: GetAccessTokenCallback): void;
+    private getAccessTokenAsync;
+    /**
+     * Obtain the set of headers required to authenticate a request.
+     *
+     * @deprecated Use getRequestHeaders instead.
+     * @param url the Uri being authorized
+     * @param callback the func described above
+     */
+    getRequestMetadata(url?: string | null): Promise<RequestMetadataResponse>;
+    getRequestMetadata(url: string | null, callback: RequestMetadataCallback): void;
+    /**
+     * The main authentication interface.  It takes an optional url which when
+     * present is the endpoint being accessed, and returns a Promise which
+     * resolves with authorization header fields.
+     *
+     * In OAuth2Client, the result has the form:
+     * { Authorization: 'Bearer <access_token_value>' }
+     * @param url The optional url being authorized
+     */
+    getRequestHeaders(url?: string): Promise<Headers>;
+    protected getRequestMetadataAsync(url?: string | null): Promise<RequestMetadataResponse>;
+    /**
+     * Generates an URL to revoke the given token.
+     * @param token The existing token to be revoked.
+     */
+    static getRevokeTokenUrl(token: string): string;
+    /**
+     * Revokes the access given to token.
+     * @param token The existing token to be revoked.
+     * @param callback Optional callback fn.
+     */
+    revokeToken(token: string): GaxiosPromise<RevokeCredentialsResult>;
+    revokeToken(token: string, callback: BodyResponseCallback<RevokeCredentialsResult>): void;
+    /**
+     * Revokes access token and clears the credentials object
+     * @param callback callback
+     */
+    revokeCredentials(): GaxiosPromise<RevokeCredentialsResult>;
+    revokeCredentials(callback: BodyResponseCallback<RevokeCredentialsResult>): void;
+    private revokeCredentialsAsync;
+    /**
+     * Provides a request implementation with OAuth 2.0 flow. If credentials have
+     * a refresh_token, in cases of HTTP 401 and 403 responses, it automatically
+     * asks for a new access token and replays the unsuccessful request.
+     * @param opts Request options.
+     * @param callback callback.
+     * @return Request object
+     */
+    request<T>(opts: GaxiosOptions): GaxiosPromise<T>;
+    request<T>(opts: GaxiosOptions, callback: BodyResponseCallback<T>): void;
+    protected requestAsync<T>(opts: GaxiosOptions, retry?: boolean): Promise<GaxiosResponse<T>>;
+    /**
+     * Verify id token is token by checking the certs and audience
+     * @param options that contains all options.
+     * @param callback Callback supplying GoogleLogin if successful
+     */
+    verifyIdToken(options: VerifyIdTokenOptions): Promise<LoginTicket>;
+    verifyIdToken(options: VerifyIdTokenOptions, callback: (err: Error | null, login?: LoginTicket) => void): void;
+    private verifyIdTokenAsync;
+    /**
+     * Obtains information about the provisioned access token.  Especially useful
+     * if you want to check the scopes that were provisioned to a given token.
+     *
+     * @param accessToken Required.  The Access Token for which you want to get
+     * user info.
+     */
+    getTokenInfo(accessToken: string): Promise<TokenInfo>;
+    /**
+     * Gets federated sign-on certificates to use for verifying identity tokens.
+     * Returns certs as array structure, where keys are key ids, and values
+     * are certificates in either PEM or JWK format.
+     * @param callback Callback supplying the certificates
+     */
+    getFederatedSignonCerts(): Promise<FederatedSignonCertsResponse>;
+    getFederatedSignonCerts(callback: GetFederatedSignonCertsCallback): void;
+    getFederatedSignonCertsAsync(): Promise<FederatedSignonCertsResponse>;
+    verifySignedJwtWithCerts(): void;
+    /**
+     * Verify the id token is signed with the correct certificate
+     * and is from the correct audience.
+     * @param jwt The jwt to verify (The ID Token in this case).
+     * @param certs The array of certs to test the jwt against.
+     * @param requiredAudience The audience to test the jwt against.
+     * @param issuers The allowed issuers of the jwt (Optional).
+     * @param maxExpiry The max expiry the certificate can be (Optional).
+     * @return Returns a promise resolving to LoginTicket on verification.
+     */
+    verifySignedJwtWithCertsAsync(jwt: string, certs: Certificates, requiredAudience: string | string[], issuers?: string[], maxExpiry?: number): Promise<LoginTicket>;
+    /**
+     * Returns true if a token is expired or will expire within
+     * eagerRefreshThresholdMillismilliseconds.
+     * If there is no expiry time, assumes the token is not expired or expiring.
+     */
+    protected isTokenExpiring(): boolean;
+}

node_modules/google-auth-library/build/src/auth/oauth2client.js

@@ -0,0 +1,649 @@
+"use strict";
+/**
+ * Copyright 2019 Google LLC. All Rights Reserved.
+ *
+ * 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 });
+const querystring = require("querystring");
+const stream = require("stream");
+const crypto_1 = require("../crypto/crypto");
+const messages = require("../messages");
+const authclient_1 = require("./authclient");
+const loginticket_1 = require("./loginticket");
+var CodeChallengeMethod;
+(function (CodeChallengeMethod) {
+    CodeChallengeMethod["Plain"] = "plain";
+    CodeChallengeMethod["S256"] = "S256";
+})(CodeChallengeMethod = exports.CodeChallengeMethod || (exports.CodeChallengeMethod = {}));
+var CertificateFormat;
+(function (CertificateFormat) {
+    CertificateFormat["PEM"] = "PEM";
+    CertificateFormat["JWK"] = "JWK";
+})(CertificateFormat = exports.CertificateFormat || (exports.CertificateFormat = {}));
+class OAuth2Client extends authclient_1.AuthClient {
+    constructor(optionsOrClientId, clientSecret, redirectUri) {
+        super();
+        this.certificateCache = {};
+        this.certificateExpiry = null;
+        this.certificateCacheFormat = CertificateFormat.PEM;
+        this.refreshTokenPromises = new Map();
+        const opts = optionsOrClientId && typeof optionsOrClientId === 'object'
+            ? optionsOrClientId
+            : { clientId: optionsOrClientId, clientSecret, redirectUri };
+        this._clientId = opts.clientId;
+        this._clientSecret = opts.clientSecret;
+        this.redirectUri = opts.redirectUri;
+        this.eagerRefreshThresholdMillis =
+            opts.eagerRefreshThresholdMillis || 5 * 60 * 1000;
+    }
+    /**
+     * Generates URL for consent page landing.
+     * @param opts Options.
+     * @return URL to consent page.
+     */
+    generateAuthUrl(opts = {}) {
+        if (opts.code_challenge_method && !opts.code_challenge) {
+            throw new Error('If a code_challenge_method is provided, code_challenge must be included.');
+        }
+        opts.response_type = opts.response_type || 'code';
+        opts.client_id = opts.client_id || this._clientId;
+        opts.redirect_uri = opts.redirect_uri || this.redirectUri;
+        // Allow scopes to be passed either as array or a string
+        if (opts.scope instanceof Array) {
+            opts.scope = opts.scope.join(' ');
+        }
+        const rootUrl = OAuth2Client.GOOGLE_OAUTH2_AUTH_BASE_URL_;
+        return rootUrl + '?' + querystring.stringify(opts);
+    }
+    generateCodeVerifier() {
+        // To make the code compatible with browser SubtleCrypto we need to make
+        // this method async.
+        throw new Error('generateCodeVerifier is removed, please use generateCodeVerifierAsync instead.');
+    }
+    /**
+     * Convenience method to automatically generate a code_verifier, and it's
+     * resulting SHA256. If used, this must be paired with a S256
+     * code_challenge_method.
+     */
+    async generateCodeVerifierAsync() {
+        // base64 encoding uses 6 bits per character, and we want to generate128
+        // characters. 6*128/8 = 96.
+        const crypto = crypto_1.createCrypto();
+        const randomString = crypto.randomBytesBase64(96);
+        // The valid characters in the code_verifier are [A-Z]/[a-z]/[0-9]/
+        // "-"/"."/"_"/"~". Base64 encoded strings are pretty close, so we're just
+        // swapping out a few chars.
+        const codeVerifier = randomString
+            .replace(/\+/g, '~')
+            .replace(/=/g, '_')
+            .replace(/\//g, '-');
+        // Generate the base64 encoded SHA256
+        const unencodedCodeChallenge = await crypto.sha256DigestBase64(codeVerifier);
+        // We need to use base64UrlEncoding instead of standard base64
+        const codeChallenge = unencodedCodeChallenge
+            .split('=')[0]
+            .replace(/\+/g, '-')
+            .replace(/\//g, '_');
+        return { codeVerifier, codeChallenge };
+    }
+    getToken(codeOrOptions, callback) {
+        const options = typeof codeOrOptions === 'string' ? { code: codeOrOptions } : codeOrOptions;
+        if (callback) {
+            this.getTokenAsync(options).then(r => callback(null, r.tokens, r.res), e => callback(e, null, e.response));
+        }
+        else {
+            return this.getTokenAsync(options);
+        }
+    }
+    async getTokenAsync(options) {
+        const url = OAuth2Client.GOOGLE_OAUTH2_TOKEN_URL_;
+        const values = {
+            code: options.code,
+            client_id: options.client_id || this._clientId,
+            client_secret: this._clientSecret,
+            redirect_uri: options.redirect_uri || this.redirectUri,
+            grant_type: 'authorization_code',
+            code_verifier: options.codeVerifier,
+        };
+        const res = await this.transporter.request({
+            method: 'POST',
+            url,
+            data: querystring.stringify(values),
+            headers: { 'Content-Type': 'application/x-www-form-urlencoded' },
+        });
+        const tokens = res.data;
+        if (res.data && res.data.expires_in) {
+            tokens.expiry_date = new Date().getTime() + res.data.expires_in * 1000;
+            delete tokens.expires_in;
+        }
+        this.emit('tokens', tokens);
+        return { tokens, res };
+    }
+    /**
+     * Refreshes the access token.
+     * @param refresh_token Existing refresh token.
+     * @private
+     */
+    async refreshToken(refreshToken) {
+        if (!refreshToken) {
+            return this.refreshTokenNoCache(refreshToken);
+        }
+        // If a request to refresh using the same token has started,
+        // return the same promise.
+        if (this.refreshTokenPromises.has(refreshToken)) {
+            return this.refreshTokenPromises.get(refreshToken);
+        }
+        const p = this.refreshTokenNoCache(refreshToken).then(r => {
+            this.refreshTokenPromises.delete(refreshToken);
+            return r;
+        }, e => {
+            this.refreshTokenPromises.delete(refreshToken);
+            throw e;
+        });
+        this.refreshTokenPromises.set(refreshToken, p);
+        return p;
+    }
+    async refreshTokenNoCache(refreshToken) {
+        if (!refreshToken) {
+            throw new Error('No refresh token is set.');
+        }
+        const url = OAuth2Client.GOOGLE_OAUTH2_TOKEN_URL_;
+        const data = {
+            refresh_token: refreshToken,
+            client_id: this._clientId,
+            client_secret: this._clientSecret,
+            grant_type: 'refresh_token',
+        };
+        // request for new token
+        const res = await this.transporter.request({
+            method: 'POST',
+            url,
+            data: querystring.stringify(data),
+            headers: { 'Content-Type': 'application/x-www-form-urlencoded' },
+        });
+        const tokens = res.data;
+        // TODO: de-duplicate this code from a few spots
+        if (res.data && res.data.expires_in) {
+            tokens.expiry_date = new Date().getTime() + res.data.expires_in * 1000;
+            delete tokens.expires_in;
+        }
+        this.emit('tokens', tokens);
+        return { tokens, res };
+    }
+    refreshAccessToken(callback) {
+        messages.warn(messages.REFRESH_ACCESS_TOKEN_DEPRECATED);
+        if (callback) {
+            this.refreshAccessTokenAsync().then(r => callback(null, r.credentials, r.res), callback);
+        }
+        else {
+            return this.refreshAccessTokenAsync();
+        }
+    }
+    async refreshAccessTokenAsync() {
+        const r = await this.refreshToken(this.credentials.refresh_token);
+        const tokens = r.tokens;
+        tokens.refresh_token = this.credentials.refresh_token;
+        this.credentials = tokens;
+        return { credentials: this.credentials, res: r.res };
+    }
+    getAccessToken(callback) {
+        if (callback) {
+            this.getAccessTokenAsync().then(r => callback(null, r.token, r.res), callback);
+        }
+        else {
+            return this.getAccessTokenAsync();
+        }
+    }
+    async getAccessTokenAsync() {
+        const shouldRefresh = !this.credentials.access_token || this.isTokenExpiring();
+        if (shouldRefresh) {
+            if (!this.credentials.refresh_token) {
+                throw new Error('No refresh token is set.');
+            }
+            const r = await this.refreshAccessTokenAsync();
+            if (!r.credentials || (r.credentials && !r.credentials.access_token)) {
+                throw new Error('Could not refresh access token.');
+            }
+            return { token: r.credentials.access_token, res: r.res };
+        }
+        else {
+            return { token: this.credentials.access_token };
+        }
+    }
+    getRequestMetadata(url, callback) {
+        messages.warn(messages.OAUTH_GET_REQUEST_METADATA_DEPRECATED);
+        if (callback) {
+            this.getRequestMetadataAsync(url).then(r => callback(null, r.headers, r.res), callback);
+        }
+        else {
+            return this.getRequestMetadataAsync();
+        }
+    }
+    /**
+     * The main authentication interface.  It takes an optional url which when
+     * present is the endpoint being accessed, and returns a Promise which
+     * resolves with authorization header fields.
+     *
+     * In OAuth2Client, the result has the form:
+     * { Authorization: 'Bearer <access_token_value>' }
+     * @param url The optional url being authorized
+     */
+    async getRequestHeaders(url) {
+        const res = await this.getRequestMetadataAsync(url);
+        return res.headers;
+    }
+    async getRequestMetadataAsync(url) {
+        const thisCreds = this.credentials;
+        if (!thisCreds.access_token && !thisCreds.refresh_token && !this.apiKey) {
+            throw new Error('No access, refresh token or API key is set.');
+        }
+        if (thisCreds.access_token && !this.isTokenExpiring()) {
+            thisCreds.token_type = thisCreds.token_type || 'Bearer';
+            const headers = {
+                Authorization: thisCreds.token_type + ' ' + thisCreds.access_token,
+            };
+            return { headers };
+        }
+        if (this.apiKey) {
+            return { headers: { 'X-Goog-Api-Key': this.apiKey } };
+        }
+        let r = null;
+        let tokens = null;
+        try {
+            r = await this.refreshToken(thisCreds.refresh_token);
+            tokens = r.tokens;
+        }
+        catch (err) {
+            const e = err;
+            if (e.response &&
+                (e.response.status === 403 || e.response.status === 404)) {
+                e.message = `Could not refresh access token: ${e.message}`;
+            }
+            throw e;
+        }
+        const credentials = this.credentials;
+        credentials.token_type = credentials.token_type || 'Bearer';
+        tokens.refresh_token = credentials.refresh_token;
+        this.credentials = tokens;
+        const headers = {
+            Authorization: credentials.token_type + ' ' + tokens.access_token,
+        };
+        return { headers, res: r.res };
+    }
+    /**
+     * Generates an URL to revoke the given token.
+     * @param token The existing token to be revoked.
+     */
+    static getRevokeTokenUrl(token) {
+        const parameters = querystring.stringify({ token });
+        return `${OAuth2Client.GOOGLE_OAUTH2_REVOKE_URL_}?${parameters}`;
+    }
+    revokeToken(token, callback) {
+        const opts = {
+            url: OAuth2Client.getRevokeTokenUrl(token),
+            method: 'POST',
+        };
+        if (callback) {
+            this.transporter
+                .request(opts)
+                .then(r => callback(null, r), callback);
+        }
+        else {
+            return this.transporter.request(opts);
+        }
+    }
+    revokeCredentials(callback) {
+        if (callback) {
+            this.revokeCredentialsAsync().then(res => callback(null, res), callback);
+        }
+        else {
+            return this.revokeCredentialsAsync();
+        }
+    }
+    async revokeCredentialsAsync() {
+        const token = this.credentials.access_token;
+        this.credentials = {};
+        if (token) {
+            return this.revokeToken(token);
+        }
+        else {
+            throw new Error('No access token to revoke.');
+        }
+    }
+    request(opts, callback) {
+        if (callback) {
+            this.requestAsync(opts).then(r => callback(null, r), e => {
+                return callback(e, e.response);
+            });
+        }
+        else {
+            return this.requestAsync(opts);
+        }
+    }
+    async requestAsync(opts, retry = false) {
+        let r2;
+        try {
+            const r = await this.getRequestMetadataAsync(opts.url);
+            if (r.headers && r.headers.Authorization) {
+                opts.headers = opts.headers || {};
+                opts.headers.Authorization = r.headers.Authorization;
+            }
+            if (this.apiKey) {
+                opts.headers = opts.headers || {};
+                opts.headers['X-Goog-Api-Key'] = this.apiKey;
+            }
+            r2 = await this.transporter.request(opts);
+        }
+        catch (e) {
+            const res = e.response;
+            if (res) {
+                const statusCode = res.status;
+                // Retry the request for metadata if the following criteria are true:
+                // - We haven't already retried.  It only makes sense to retry once.
+                // - The response was a 401 or a 403
+                // - The request didn't send a readableStream
+                // - An access_token and refresh_token were available, but no
+                //   expiry_date was availabe. This can happen when developers stash
+                //   the access_token and refresh_token for later use, but the
+                //   access_token fails on the first try because it's expired.
+                const mayRequireRefresh = this.credentials &&
+                    this.credentials.access_token &&
+                    this.credentials.refresh_token &&
+                    !this.credentials.expiry_date;
+                const isReadableStream = res.config.data instanceof stream.Readable;
+                const isAuthErr = statusCode === 401 || statusCode === 403;
+                if (!retry && isAuthErr && !isReadableStream && mayRequireRefresh) {
+                    await this.refreshAccessTokenAsync();
+                    return this.requestAsync(opts, true);
+                }
+            }
+            throw e;
+        }
+        return r2;
+    }
+    verifyIdToken(options, callback) {
+        // This function used to accept two arguments instead of an options object.
+        // Check the types to help users upgrade with less pain.
+        // This check can be removed after a 2.0 release.
+        if (callback && typeof callback !== 'function') {
+            throw new Error('This method accepts an options object as the first parameter, which includes the idToken, audience, and maxExpiry.');
+        }
+        if (callback) {
+            this.verifyIdTokenAsync(options).then(r => callback(null, r), callback);
+        }
+        else {
+            return this.verifyIdTokenAsync(options);
+        }
+    }
+    async verifyIdTokenAsync(options) {
+        if (!options.idToken) {
+            throw new Error('The verifyIdToken method requires an ID Token');
+        }
+        const response = await this.getFederatedSignonCertsAsync();
+        const login = await this.verifySignedJwtWithCertsAsync(options.idToken, response.certs, options.audience, OAuth2Client.ISSUERS_, options.maxExpiry);
+        return login;
+    }
+    /**
+     * Obtains information about the provisioned access token.  Especially useful
+     * if you want to check the scopes that were provisioned to a given token.
+     *
+     * @param accessToken Required.  The Access Token for which you want to get
+     * user info.
+     */
+    async getTokenInfo(accessToken) {
+        const { data } = await this.transporter.request({
+            method: 'GET',
+            url: OAuth2Client.GOOGLE_TOKEN_INFO_URL,
+            params: { access_token: accessToken },
+        });
+        const info = Object.assign({
+            expiry_date: new Date().getTime() + data.expires_in * 1000,
+            scopes: data.scope.split(' '),
+        }, data);
+        delete info.expires_in;
+        delete info.scope;
+        return info;
+    }
+    getFederatedSignonCerts(callback) {
+        if (callback) {
+            this.getFederatedSignonCertsAsync().then(r => callback(null, r.certs, r.res), callback);
+        }
+        else {
+            return this.getFederatedSignonCertsAsync();
+        }
+    }
+    async getFederatedSignonCertsAsync() {
+        const nowTime = new Date().getTime();
+        const format = crypto_1.hasBrowserCrypto()
+            ? CertificateFormat.JWK
+            : CertificateFormat.PEM;
+        if (this.certificateExpiry &&
+            nowTime < this.certificateExpiry.getTime() &&
+            this.certificateCacheFormat === format) {
+            return { certs: this.certificateCache, format };
+        }
+        let res;
+        let url;
+        switch (format) {
+            case CertificateFormat.PEM:
+                url = OAuth2Client.GOOGLE_OAUTH2_FEDERATED_SIGNON_PEM_CERTS_URL_;
+                break;
+            case CertificateFormat.JWK:
+                url = OAuth2Client.GOOGLE_OAUTH2_FEDERATED_SIGNON_JWK_CERTS_URL_;
+                break;
+            default:
+                throw new Error(`Unsupported certificate format ${format}`);
+        }
+        try {
+            res = await this.transporter.request({ url });
+        }
+        catch (e) {
+            e.message = `Failed to retrieve verification certificates: ${e.message}`;
+            throw e;
+        }
+        const cacheControl = res ? res.headers['cache-control'] : undefined;
+        let cacheAge = -1;
+        if (cacheControl) {
+            const pattern = new RegExp('max-age=([0-9]*)');
+            const regexResult = pattern.exec(cacheControl);
+            if (regexResult && regexResult.length === 2) {
+                // Cache results with max-age (in seconds)
+                cacheAge = Number(regexResult[1]) * 1000; // milliseconds
+            }
+        }
+        let certificates = {};
+        switch (format) {
+            case CertificateFormat.PEM:
+                certificates = res.data;
+                break;
+            case CertificateFormat.JWK:
+                for (const key of res.data.keys) {
+                    certificates[key.kid] = key;
+                }
+                break;
+            default:
+                throw new Error(`Unsupported certificate format ${format}`);
+        }
+        const now = new Date();
+        this.certificateExpiry =
+            cacheAge === -1 ? null : new Date(now.getTime() + cacheAge);
+        this.certificateCache = certificates;
+        this.certificateCacheFormat = format;
+        return { certs: certificates, format, res };
+    }
+    verifySignedJwtWithCerts() {
+        // To make the code compatible with browser SubtleCrypto we need to make
+        // this method async.
+        throw new Error('verifySignedJwtWithCerts is removed, please use verifySignedJwtWithCertsAsync instead.');
+    }
+    /**
+     * Verify the id token is signed with the correct certificate
+     * and is from the correct audience.
+     * @param jwt The jwt to verify (The ID Token in this case).
+     * @param certs The array of certs to test the jwt against.
+     * @param requiredAudience The audience to test the jwt against.
+     * @param issuers The allowed issuers of the jwt (Optional).
+     * @param maxExpiry The max expiry the certificate can be (Optional).
+     * @return Returns a promise resolving to LoginTicket on verification.
+     */
+    async verifySignedJwtWithCertsAsync(jwt, certs, requiredAudience, issuers, maxExpiry) {
+        const crypto = crypto_1.createCrypto();
+        if (!maxExpiry) {
+            maxExpiry = OAuth2Client.MAX_TOKEN_LIFETIME_SECS_;
+        }
+        const segments = jwt.split('.');
+        if (segments.length !== 3) {
+            throw new Error('Wrong number of segments in token: ' + jwt);
+        }
+        const signed = segments[0] + '.' + segments[1];
+        const signature = segments[2];
+        let envelope;
+        let payload;
+        try {
+            envelope = JSON.parse(crypto.decodeBase64StringUtf8(segments[0]));
+        }
+        catch (err) {
+            err.message = `Can't parse token envelope: ${segments[0]}': ${err.message}`;
+            throw err;
+        }
+        if (!envelope) {
+            throw new Error("Can't parse token envelope: " + segments[0]);
+        }
+        try {
+            payload = JSON.parse(crypto.decodeBase64StringUtf8(segments[1]));
+        }
+        catch (err) {
+            err.message = `Can't parse token payload '${segments[0]}`;
+            throw err;
+        }
+        if (!payload) {
+            throw new Error("Can't parse token payload: " + segments[1]);
+        }
+        if (!certs.hasOwnProperty(envelope.kid)) {
+            // If this is not present, then there's no reason to attempt verification
+            throw new Error('No pem found for envelope: ' + JSON.stringify(envelope));
+        }
+        const cert = certs[envelope.kid];
+        const verified = await crypto.verify(cert, signed, signature);
+        if (!verified) {
+            throw new Error('Invalid token signature: ' + jwt);
+        }
+        if (!payload.iat) {
+            throw new Error('No issue time in token: ' + JSON.stringify(payload));
+        }
+        if (!payload.exp) {
+            throw new Error('No expiration time in token: ' + JSON.stringify(payload));
+        }
+        const iat = Number(payload.iat);
+        if (isNaN(iat))
+            throw new Error('iat field using invalid format');
+        const exp = Number(payload.exp);
+        if (isNaN(exp))
+            throw new Error('exp field using invalid format');
+        const now = new Date().getTime() / 1000;
+        if (exp >= now + maxExpiry) {
+            throw new Error('Expiration time too far in future: ' + JSON.stringify(payload));
+        }
+        const earliest = iat - OAuth2Client.CLOCK_SKEW_SECS_;
+        const latest = exp + OAuth2Client.CLOCK_SKEW_SECS_;
+        if (now < earliest) {
+            throw new Error('Token used too early, ' +
+                now +
+                ' < ' +
+                earliest +
+                ': ' +
+                JSON.stringify(payload));
+        }
+        if (now > latest) {
+            throw new Error('Token used too late, ' +
+                now +
+                ' > ' +
+                latest +
+                ': ' +
+                JSON.stringify(payload));
+        }
+        if (issuers && issuers.indexOf(payload.iss) < 0) {
+            throw new Error('Invalid issuer, expected one of [' +
+                issuers +
+                '], but got ' +
+                payload.iss);
+        }
+        // Check the audience matches if we have one
+        if (typeof requiredAudience !== 'undefined' && requiredAudience !== null) {
+            const aud = payload.aud;
+            let audVerified = false;
+            // If the requiredAudience is an array, check if it contains token
+            // audience
+            if (requiredAudience.constructor === Array) {
+                audVerified = requiredAudience.indexOf(aud) > -1;
+            }
+            else {
+                audVerified = aud === requiredAudience;
+            }
+            if (!audVerified) {
+                throw new Error('Wrong recipient, payload audience != requiredAudience');
+            }
+        }
+        return new loginticket_1.LoginTicket(envelope, payload);
+    }
+    /**
+     * Returns true if a token is expired or will expire within
+     * eagerRefreshThresholdMillismilliseconds.
+     * If there is no expiry time, assumes the token is not expired or expiring.
+     */
+    isTokenExpiring() {
+        const expiryDate = this.credentials.expiry_date;
+        return expiryDate
+            ? expiryDate <= new Date().getTime() + this.eagerRefreshThresholdMillis
+            : false;
+    }
+}
+exports.OAuth2Client = OAuth2Client;
+OAuth2Client.GOOGLE_TOKEN_INFO_URL = 'https://oauth2.googleapis.com/tokeninfo';
+/**
+ * The base URL for auth endpoints.
+ */
+OAuth2Client.GOOGLE_OAUTH2_AUTH_BASE_URL_ = 'https://accounts.google.com/o/oauth2/v2/auth';
+/**
+ * The base endpoint for token retrieval.
+ */
+OAuth2Client.GOOGLE_OAUTH2_TOKEN_URL_ = 'https://oauth2.googleapis.com/token';
+/**
+ * The base endpoint to revoke tokens.
+ */
+OAuth2Client.GOOGLE_OAUTH2_REVOKE_URL_ = 'https://oauth2.googleapis.com/revoke';
+/**
+ * Google Sign on certificates in PEM format.
+ */
+OAuth2Client.GOOGLE_OAUTH2_FEDERATED_SIGNON_PEM_CERTS_URL_ = 'https://www.googleapis.com/oauth2/v1/certs';
+/**
+ * Google Sign on certificates in JWK format.
+ */
+OAuth2Client.GOOGLE_OAUTH2_FEDERATED_SIGNON_JWK_CERTS_URL_ = 'https://www.googleapis.com/oauth2/v3/certs';
+/**
+ * Clock skew - five minutes in seconds
+ */
+OAuth2Client.CLOCK_SKEW_SECS_ = 300;
+/**
+ * Max Token Lifetime is one day in seconds
+ */
+OAuth2Client.MAX_TOKEN_LIFETIME_SECS_ = 86400;
+/**
+ * The allowed oauth token issuers.
+ */
+OAuth2Client.ISSUERS_ = [
+    'accounts.google.com',
+    'https://accounts.google.com',
+];
+//# sourceMappingURL=oauth2client.js.map

node_modules/google-auth-library/build/src/auth/refreshclient.d.ts

@@ -0,0 +1,58 @@
+/**
+ * Copyright 2015 Google Inc. All Rights Reserved.
+ *
+ * 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.
+ */
+/// <reference types="node" />
+import * as stream from 'stream';
+import { JWTInput } from './credentials';
+import { GetTokenResponse, OAuth2Client, RefreshOptions } from './oauth2client';
+export interface UserRefreshClientOptions extends RefreshOptions {
+    clientId?: string;
+    clientSecret?: string;
+    refreshToken?: string;
+}
+export declare class UserRefreshClient extends OAuth2Client {
+    _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);
+    /**
+     * Refreshes the access token.
+     * @param refreshToken An ignored refreshToken..
+     * @param callback Optional callback.
+     */
+    protected refreshTokenNoCache(refreshToken?: string | null): Promise<GetTokenResponse>;
+    /**
+     * Create a UserRefreshClient credentials instance using the given input
+     * options.
+     * @param json The input object.
+     */
+    fromJSON(json: JWTInput): void;
+    /**
+     * 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;
+    private fromStreamAsync;
+}

node_modules/google-auth-library/build/src/auth/refreshclient.js

@@ -0,0 +1,102 @@
+"use strict";
+/**
+ * Copyright 2015 Google Inc. All Rights Reserved.
+ *
+ * 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 });
+const oauth2client_1 = require("./oauth2client");
+class UserRefreshClient extends oauth2client_1.OAuth2Client {
+    constructor(optionsOrClientId, clientSecret, refreshToken, eagerRefreshThresholdMillis) {
+        const opts = optionsOrClientId && typeof optionsOrClientId === 'object'
+            ? optionsOrClientId
+            : {
+                clientId: optionsOrClientId,
+                clientSecret,
+                refreshToken,
+                eagerRefreshThresholdMillis,
+            };
+        super({
+            clientId: opts.clientId,
+            clientSecret: opts.clientSecret,
+            eagerRefreshThresholdMillis: opts.eagerRefreshThresholdMillis,
+        });
+        this._refreshToken = opts.refreshToken;
+    }
+    /**
+     * Refreshes the access token.
+     * @param refreshToken An ignored refreshToken..
+     * @param callback Optional callback.
+     */
+    async refreshTokenNoCache(refreshToken) {
+        return super.refreshTokenNoCache(this._refreshToken);
+    }
+    /**
+     * Create a UserRefreshClient credentials instance using the given input
+     * options.
+     * @param json The input object.
+     */
+    fromJSON(json) {
+        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;
+    }
+    fromStream(inputStream, callback) {
+        if (callback) {
+            this.fromStreamAsync(inputStream).then(r => callback(), callback);
+        }
+        else {
+            return this.fromStreamAsync(inputStream);
+        }
+    }
+    async fromStreamAsync(inputStream) {
+        return new Promise((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);
+                }
+            });
+        });
+    }
+}
+exports.UserRefreshClient = UserRefreshClient;
+//# sourceMappingURL=refreshclient.js.map

node_modules/google-auth-library/build/src/crypto/browser/crypto.d.ts

@@ -0,0 +1,26 @@
+/**
+ * Copyright 2019 Google LLC. All Rights Reserved.
+ *
+ * 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 { Crypto, JwkCertificate } from '../crypto';
+export declare class BrowserCrypto implements Crypto {
+    constructor();
+    sha256DigestBase64(str: string): Promise<string>;
+    randomBytesBase64(count: number): string;
+    private static padBase64;
+    verify(pubkey: JwkCertificate, data: string, signature: string): Promise<boolean>;
+    sign(privateKey: JwkCertificate, data: string): Promise<string>;
+    decodeBase64StringUtf8(base64: string): string;
+    encodeBase64StringUtf8(text: string): string;
+}

node_modules/google-auth-library/build/src/crypto/browser/crypto.js

@@ -0,0 +1,94 @@
+"use strict";
+/**
+ * Copyright 2019 Google LLC. All Rights Reserved.
+ *
+ * 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 });
+// This file implements crypto functions we need using in-browser
+// SubtleCrypto interface `window.crypto.subtle`.
+const base64js = require("base64-js");
+// Not all browsers support `TextEncoder`. The following `require` will
+// provide a fast UTF8-only replacement for those browsers that don't support
+// text encoding natively.
+if (typeof process === 'undefined' && typeof TextEncoder === 'undefined') {
+    require('fast-text-encoding');
+}
+class BrowserCrypto {
+    constructor() {
+        if (typeof window === 'undefined' ||
+            window.crypto === undefined ||
+            window.crypto.subtle === undefined) {
+            throw new Error("SubtleCrypto not found. Make sure it's an https:// website.");
+        }
+    }
+    async sha256DigestBase64(str) {
+        // SubtleCrypto digest() method is async, so we must make
+        // this method async as well.
+        // To calculate SHA256 digest using SubtleCrypto, we first
+        // need to convert an input string to an ArrayBuffer:
+        const inputBuffer = new TextEncoder().encode(str);
+        // Result is ArrayBuffer as well.
+        const outputBuffer = await window.crypto.subtle.digest('SHA-256', inputBuffer);
+        return base64js.fromByteArray(new Uint8Array(outputBuffer));
+    }
+    randomBytesBase64(count) {
+        const array = new Uint8Array(count);
+        window.crypto.getRandomValues(array);
+        return base64js.fromByteArray(array);
+    }
+    static padBase64(base64) {
+        // base64js requires padding, so let's add some '='
+        while (base64.length % 4 !== 0) {
+            base64 += '=';
+        }
+        return base64;
+    }
+    async verify(pubkey, data, signature) {
+        const algo = {
+            name: 'RSASSA-PKCS1-v1_5',
+            hash: { name: 'SHA-256' },
+        };
+        const dataArray = new TextEncoder().encode(data);
+        const signatureArray = base64js.toByteArray(BrowserCrypto.padBase64(signature));
+        const cryptoKey = await window.crypto.subtle.importKey('jwk', pubkey, algo, true, ['verify']);
+        // SubtleCrypto's verify method is async so we must make
+        // this method async as well.
+        const result = await window.crypto.subtle.verify(algo, cryptoKey, signatureArray, dataArray);
+        return result;
+    }
+    async sign(privateKey, data) {
+        const algo = {
+            name: 'RSASSA-PKCS1-v1_5',
+            hash: { name: 'SHA-256' },
+        };
+        const dataArray = new TextEncoder().encode(data);
+        const cryptoKey = await window.crypto.subtle.importKey('jwk', privateKey, algo, true, ['sign']);
+        // SubtleCrypto's sign method is async so we must make
+        // this method async as well.
+        const result = await window.crypto.subtle.sign(algo, cryptoKey, dataArray);
+        return base64js.fromByteArray(new Uint8Array(result));
+    }
+    decodeBase64StringUtf8(base64) {
+        const uint8array = base64js.toByteArray(BrowserCrypto.padBase64(base64));
+        const result = new TextDecoder().decode(uint8array);
+        return result;
+    }
+    encodeBase64StringUtf8(text) {
+        const uint8array = new TextEncoder().encode(text);
+        const result = base64js.fromByteArray(uint8array);
+        return result;
+    }
+}
+exports.BrowserCrypto = BrowserCrypto;
+//# sourceMappingURL=crypto.js.map

node_modules/google-auth-library/build/src/crypto/crypto.d.ts

@@ -0,0 +1,38 @@
+/**
+ * Copyright 2019 Google LLC. All Rights Reserved.
+ *
+ * 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.
+ */
+/// <reference types="node" />
+export interface JwkCertificate {
+    kty: string;
+    alg: string;
+    use?: string;
+    kid: string;
+    n: string;
+    e: string;
+}
+export interface CryptoSigner {
+    update(data: string): void;
+    sign(key: string, outputFormat: string): string;
+}
+export interface Crypto {
+    sha256DigestBase64(str: string): Promise<string>;
+    randomBytesBase64(n: number): string;
+    verify(pubkey: string | JwkCertificate, data: string | Buffer, signature: string): Promise<boolean>;
+    sign(privateKey: string | JwkCertificate, data: string | Buffer): Promise<string>;
+    decodeBase64StringUtf8(base64: string): string;
+    encodeBase64StringUtf8(text: string): string;
+}
+export declare function createCrypto(): Crypto;
+export declare function hasBrowserCrypto(): boolean;

node_modules/google-auth-library/build/src/crypto/crypto.js

@@ -0,0 +1,33 @@
+"use strict";
+/**
+ * Copyright 2019 Google LLC. All Rights Reserved.
+ *
+ * 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 });
+const crypto_1 = require("./browser/crypto");
+const crypto_2 = require("./node/crypto");
+function createCrypto() {
+    if (hasBrowserCrypto()) {
+        return new crypto_1.BrowserCrypto();
+    }
+    return new crypto_2.NodeCrypto();
+}
+exports.createCrypto = createCrypto;
+function hasBrowserCrypto() {
+    return (typeof window !== 'undefined' &&
+        typeof window.crypto !== 'undefined' &&
+        typeof window.crypto.subtle !== 'undefined');
+}
+exports.hasBrowserCrypto = hasBrowserCrypto;
+//# sourceMappingURL=crypto.js.map

node_modules/google-auth-library/build/src/crypto/node/crypto.d.ts

@@ -0,0 +1,25 @@
+/**
+ * Copyright 2019 Google LLC. All Rights Reserved.
+ *
+ * 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.
+ */
+/// <reference types="node" />
+import { Crypto } from '../crypto';
+export declare class NodeCrypto implements Crypto {
+    sha256DigestBase64(str: string): Promise<string>;
+    randomBytesBase64(count: number): string;
+    verify(pubkey: string, data: string | Buffer, signature: string): Promise<boolean>;
+    sign(privateKey: string, data: string | Buffer): Promise<string>;
+    decodeBase64StringUtf8(base64: string): string;
+    encodeBase64StringUtf8(text: string): string;
+}

node_modules/google-auth-library/build/src/crypto/node/crypto.js

@@ -0,0 +1,49 @@
+"use strict";
+/**
+ * Copyright 2019 Google LLC. All Rights Reserved.
+ *
+ * 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 });
+const crypto = require("crypto");
+class NodeCrypto {
+    async sha256DigestBase64(str) {
+        return crypto
+            .createHash('sha256')
+            .update(str)
+            .digest('base64');
+    }
+    randomBytesBase64(count) {
+        return crypto.randomBytes(count).toString('base64');
+    }
+    async verify(pubkey, data, signature) {
+        const verifier = crypto.createVerify('sha256');
+        verifier.update(data);
+        verifier.end();
+        return verifier.verify(pubkey, signature, 'base64');
+    }
+    async sign(privateKey, data) {
+        const signer = crypto.createSign('RSA-SHA256');
+        signer.update(data);
+        signer.end();
+        return signer.sign(privateKey, 'base64');
+    }
+    decodeBase64StringUtf8(base64) {
+        return Buffer.from(base64, 'base64').toString('utf-8');
+    }
+    encodeBase64StringUtf8(text) {
+        return Buffer.from(text, 'utf-8').toString('base64');
+    }
+}
+exports.NodeCrypto = NodeCrypto;
+//# sourceMappingURL=crypto.js.map

node_modules/google-auth-library/build/src/index.d.ts

@@ -0,0 +1,28 @@
+/**
+ * Copyright 2017 Google Inc. All Rights Reserved.
+ *
+ * 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 { GoogleAuth } from './auth/googleauth';
+export { Compute, ComputeOptions } from './auth/computeclient';
+export { CredentialBody, CredentialRequest, Credentials, JWTInput, } from './auth/credentials';
+export { GCPEnv } from './auth/envDetect';
+export { GoogleAuthOptions, ProjectIdCallback } from './auth/googleauth';
+export { IAMAuth, RequestMetadata } from './auth/iam';
+export { Claims, JWTAccess } from './auth/jwtaccess';
+export { JWT, JWTOptions } from './auth/jwtclient';
+export { Certificates, CodeChallengeMethod, GenerateAuthUrlOpts, GetTokenOptions, OAuth2Client, OAuth2ClientOptions, RefreshOptions, TokenInfo, VerifyIdTokenOptions, } from './auth/oauth2client';
+export { UserRefreshClient, UserRefreshClientOptions, } from './auth/refreshclient';
+export { DefaultTransporter } from './transporters';
+declare const auth: GoogleAuth;
+export { auth, GoogleAuth };

node_modules/google-auth-library/build/src/index.js

@@ -0,0 +1,39 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+/**
+ * Copyright 2017 Google Inc. All Rights Reserved.
+ *
+ * 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.
+ */
+const googleauth_1 = require("./auth/googleauth");
+exports.GoogleAuth = googleauth_1.GoogleAuth;
+var computeclient_1 = require("./auth/computeclient");
+exports.Compute = computeclient_1.Compute;
+var envDetect_1 = require("./auth/envDetect");
+exports.GCPEnv = envDetect_1.GCPEnv;
+var iam_1 = require("./auth/iam");
+exports.IAMAuth = iam_1.IAMAuth;
+var jwtaccess_1 = require("./auth/jwtaccess");
+exports.JWTAccess = jwtaccess_1.JWTAccess;
+var jwtclient_1 = require("./auth/jwtclient");
+exports.JWT = jwtclient_1.JWT;
+var oauth2client_1 = require("./auth/oauth2client");
+exports.CodeChallengeMethod = oauth2client_1.CodeChallengeMethod;
+exports.OAuth2Client = oauth2client_1.OAuth2Client;
+var refreshclient_1 = require("./auth/refreshclient");
+exports.UserRefreshClient = refreshclient_1.UserRefreshClient;
+var transporters_1 = require("./transporters");
+exports.DefaultTransporter = transporters_1.DefaultTransporter;
+const auth = new googleauth_1.GoogleAuth();
+exports.auth = auth;
+//# sourceMappingURL=index.js.map

node_modules/google-auth-library/build/src/messages.d.ts

@@ -0,0 +1,76 @@
+/**
+ * Copyright 2018 Google LLC. All Rights Reserved.
+ *
+ * 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.
+ */
+export declare enum WarningTypes {
+    WARNING = "Warning",
+    DEPRECATION = "DeprecationWarning"
+}
+export declare function warn(warning: Warning): void;
+export interface Warning {
+    code: string;
+    type: WarningTypes;
+    message: string;
+    warned?: boolean;
+}
+export declare const PROBLEMATIC_CREDENTIALS_WARNING: {
+    code: string;
+    type: WarningTypes;
+    message: string;
+};
+export declare const DEFAULT_PROJECT_ID_DEPRECATED: {
+    code: string;
+    type: WarningTypes;
+    message: string;
+};
+export declare const COMPUTE_CREATE_SCOPED_DEPRECATED: {
+    code: string;
+    type: WarningTypes;
+    message: string;
+};
+export declare const JWT_CREATE_SCOPED_DEPRECATED: {
+    code: string;
+    type: WarningTypes;
+    message: string;
+};
+export declare const IAM_CREATE_SCOPED_DEPRECATED: {
+    code: string;
+    type: WarningTypes;
+    message: string;
+};
+export declare const JWT_ACCESS_CREATE_SCOPED_DEPRECATED: {
+    code: string;
+    type: WarningTypes;
+    message: string;
+};
+export declare const REFRESH_ACCESS_TOKEN_DEPRECATED: {
+    code: string;
+    type: WarningTypes;
+    message: string;
+};
+export declare const OAUTH_GET_REQUEST_METADATA_DEPRECATED: {
+    code: string;
+    type: WarningTypes;
+    message: string;
+};
+export declare const IAM_GET_REQUEST_METADATA_DEPRECATED: {
+    code: string;
+    type: WarningTypes;
+    message: string;
+};
+export declare const JWT_ACCESS_GET_REQUEST_METADATA_DEPRECATED: {
+    code: string;
+    type: WarningTypes;
+    message: string;
+};

node_modules/google-auth-library/build/src/messages.js

@@ -0,0 +1,130 @@
+"use strict";
+/**
+ * Copyright 2018 Google LLC. All Rights Reserved.
+ *
+ * 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 });
+var WarningTypes;
+(function (WarningTypes) {
+    WarningTypes["WARNING"] = "Warning";
+    WarningTypes["DEPRECATION"] = "DeprecationWarning";
+})(WarningTypes = exports.WarningTypes || (exports.WarningTypes = {}));
+function warn(warning) {
+    // Only show a given warning once
+    if (warning.warned) {
+        return;
+    }
+    warning.warned = true;
+    if (typeof process !== 'undefined' && process.emitWarning) {
+        // @types/node doesn't recognize the emitWarning syntax which
+        // accepts a config object, so `as any` it is
+        // https://nodejs.org/docs/latest-v8.x/api/process.html#process_process_emitwarning_warning_options
+        // tslint:disable-next-line no-any
+        process.emitWarning(warning.message, warning);
+    }
+    else {
+        console.warn(warning.message);
+    }
+}
+exports.warn = warn;
+exports.PROBLEMATIC_CREDENTIALS_WARNING = {
+    code: 'google-auth-library:00001',
+    type: WarningTypes.WARNING,
+    message: [
+        'Your application has authenticated using end user credentials from Google',
+        'Cloud SDK. We recommend that most server applications use service accounts',
+        'instead. If your application continues to use end user credentials from',
+        'Cloud SDK, you might receive a "quota exceeded" or "API not enabled" error.',
+        'For more information about service accounts, see',
+        'https://cloud.google.com/docs/authentication/.',
+    ].join(' '),
+};
+exports.DEFAULT_PROJECT_ID_DEPRECATED = {
+    code: 'google-auth-library:DEP002',
+    type: WarningTypes.DEPRECATION,
+    message: [
+        'The `getDefaultProjectId` method has been deprecated, and will be removed',
+        'in the 3.0 release of google-auth-library. Please use the `getProjectId`',
+        'method instead.',
+    ].join(' '),
+};
+exports.COMPUTE_CREATE_SCOPED_DEPRECATED = {
+    code: 'google-auth-library:DEP003',
+    type: WarningTypes.DEPRECATION,
+    message: [
+        'The `createScopedRequired` method on the `Compute` class has been deprecated,',
+        'and will be removed in the 3.0 release of google-auth-library.',
+    ].join(' '),
+};
+exports.JWT_CREATE_SCOPED_DEPRECATED = {
+    code: 'google-auth-library:DEP004',
+    type: WarningTypes.DEPRECATION,
+    message: [
+        'The `createScopedRequired` method on the `JWT` class has been deprecated,',
+        'and will be removed in the 3.0 release of google-auth-library.',
+    ].join(' '),
+};
+exports.IAM_CREATE_SCOPED_DEPRECATED = {
+    code: 'google-auth-library:DEP005',
+    type: WarningTypes.DEPRECATION,
+    message: [
+        'The `createScopedRequired` method on the `IAM` class has been deprecated,',
+        'and will be removed in the 3.0 release of google-auth-library.',
+    ].join(' '),
+};
+exports.JWT_ACCESS_CREATE_SCOPED_DEPRECATED = {
+    code: 'google-auth-library:DEP006',
+    type: WarningTypes.DEPRECATION,
+    message: [
+        'The `createScopedRequired` method on the `JWTAccess` class has been deprecated,',
+        'and will be removed in the 3.0 release of google-auth-library.',
+    ].join(' '),
+};
+exports.REFRESH_ACCESS_TOKEN_DEPRECATED = {
+    code: 'google-auth-library:DEP007',
+    type: WarningTypes.DEPRECATION,
+    message: [
+        'The `refreshAccessToken` method has been deprecated, and will be removed',
+        'in the 3.0 release of google-auth-library. Please use the `getRequestHeaders`',
+        'method instead.',
+    ].join(' '),
+};
+exports.OAUTH_GET_REQUEST_METADATA_DEPRECATED = {
+    code: 'google-auth-library:DEP004',
+    type: WarningTypes.DEPRECATION,
+    message: [
+        'The `getRequestMetadata` method on the `OAuth2` class has been deprecated,',
+        'and will be removed in the 3.0 release of google-auth-library. Please use',
+        'the `getRequestHeaders` method instead.',
+    ].join(' '),
+};
+exports.IAM_GET_REQUEST_METADATA_DEPRECATED = {
+    code: 'google-auth-library:DEP005',
+    type: WarningTypes.DEPRECATION,
+    message: [
+        'The `getRequestMetadata` method on the `IAM` class has been deprecated,',
+        'and will be removed in the 3.0 release of google-auth-library. Please use',
+        'the `getRequestHeaders` method instead.',
+    ].join(' '),
+};
+exports.JWT_ACCESS_GET_REQUEST_METADATA_DEPRECATED = {
+    code: 'google-auth-library:DEP006',
+    type: WarningTypes.DEPRECATION,
+    message: [
+        'The `getRequestMetadata` method on the `JWTAccess` class has been deprecated,',
+        'and will be removed in the 3.0 release of google-auth-library. Please use',
+        'the `getRequestHeaders` method instead.',
+    ].join(' '),
+};
+//# sourceMappingURL=messages.js.map

node_modules/google-auth-library/build/src/options.d.ts

@@ -0,0 +1,16 @@
+/**
+ * Copyright 2017 Google Inc. All Rights Reserved.
+ *
+ * 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.
+ */
+export declare function validate(options: any): void;

node_modules/google-auth-library/build/src/options.js

@@ -0,0 +1,37 @@
+"use strict";
+/**
+ * Copyright 2017 Google Inc. All Rights Reserved.
+ *
+ * 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 });
+// Accepts an options object passed from the user to the API.  In the
+// previous version of the API, it referred to a `Request` options object.
+// Now it refers to an Axiox Request Config object.  This is here to help
+// ensure users don't pass invalid options when they upgrade from 0.x to 1.x.
+// tslint:disable-next-line no-any
+function validate(options) {
+    const vpairs = [
+        { invalid: 'uri', expected: 'url' },
+        { invalid: 'json', expected: 'data' },
+        { invalid: 'qs', expected: 'params' },
+    ];
+    for (const pair of vpairs) {
+        if (options[pair.invalid]) {
+            const e = `'${pair.invalid}' is not a valid configuration option. Please use '${pair.expected}' instead. This library is using Axios for requests. Please see https://github.com/axios/axios to learn more about the valid request options.`;
+            throw new Error(e);
+        }
+    }
+}
+exports.validate = validate;
+//# sourceMappingURL=options.js.map

node_modules/google-auth-library/build/src/transporters.d.ts

@@ -0,0 +1,51 @@
+/**
+ * Copyright 2019 Google LLC. All Rights Reserved.
+ *
+ * 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 { GaxiosError, GaxiosOptions, GaxiosPromise, GaxiosResponse } from 'gaxios';
+export interface Transporter {
+    request<T>(opts: GaxiosOptions): GaxiosPromise<T>;
+    request<T>(opts: GaxiosOptions, callback?: BodyResponseCallback<T>): void;
+    request<T>(opts: GaxiosOptions, callback?: BodyResponseCallback<T>): GaxiosPromise | void;
+}
+export interface BodyResponseCallback<T> {
+    (err: Error | null, res?: GaxiosResponse<T> | null): void;
+}
+export interface RequestError extends GaxiosError {
+    errors: Error[];
+}
+export declare class DefaultTransporter {
+    /**
+     * Default user agent.
+     */
+    static readonly USER_AGENT: string;
+    /**
+     * Configures request options before making a request.
+     * @param opts GaxiosOptions options.
+     * @return Configured options.
+     */
+    configure(opts?: GaxiosOptions): GaxiosOptions;
+    /**
+     * Makes a request using Gaxios with given options.
+     * @param opts GaxiosOptions options.
+     * @param callback optional callback that contains GaxiosResponse object.
+     * @return GaxiosPromise, assuming no callback is passed.
+     */
+    request<T>(opts: GaxiosOptions): GaxiosPromise<T>;
+    request<T>(opts: GaxiosOptions, callback?: BodyResponseCallback<T>): void;
+    /**
+     * Changes the error to include details from the body.
+     */
+    private processError;
+}

node_modules/google-auth-library/build/src/transporters.js

@@ -0,0 +1,116 @@
+"use strict";
+/**
+ * Copyright 2019 Google LLC. All Rights Reserved.
+ *
+ * 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 });
+const gaxios_1 = require("gaxios");
+const options_1 = require("./options");
+// tslint:disable-next-line no-var-requires
+const pkg = require('../../package.json');
+const PRODUCT_NAME = 'google-api-nodejs-client';
+class DefaultTransporter {
+    /**
+     * Configures request options before making a request.
+     * @param opts GaxiosOptions options.
+     * @return Configured options.
+     */
+    configure(opts = {}) {
+        opts.headers = opts.headers || {};
+        if (typeof window === 'undefined') {
+            // set transporter user agent if not in browser
+            const uaValue = opts.headers['User-Agent'];
+            if (!uaValue) {
+                opts.headers['User-Agent'] = DefaultTransporter.USER_AGENT;
+            }
+            else if (!uaValue.includes(`${PRODUCT_NAME}/`)) {
+                opts.headers['User-Agent'] = `${uaValue} ${DefaultTransporter.USER_AGENT}`;
+            }
+            // track google-auth-library-nodejs version:
+            const authVersion = `auth/${pkg.version}`;
+            if (opts.headers['x-goog-api-client']) {
+                opts.headers['x-goog-api-client'] = `${opts.headers['x-goog-api-client']} ${authVersion}`;
+            }
+            else {
+                const nodeVersion = process.version.replace(/^v/, '');
+                opts.headers['x-goog-api-client'] = `gl-node/${nodeVersion} ${authVersion}`;
+            }
+        }
+        return opts;
+    }
+    request(opts, callback) {
+        // ensure the user isn't passing in request-style options
+        opts = this.configure(opts);
+        try {
+            options_1.validate(opts);
+        }
+        catch (e) {
+            if (callback) {
+                return callback(e);
+            }
+            else {
+                throw e;
+            }
+        }
+        if (callback) {
+            gaxios_1.request(opts).then(r => {
+                callback(null, r);
+            }, e => {
+                callback(this.processError(e));
+            });
+        }
+        else {
+            return gaxios_1.request(opts).catch(e => {
+                throw this.processError(e);
+            });
+        }
+    }
+    /**
+     * Changes the error to include details from the body.
+     */
+    processError(e) {
+        const res = e.response;
+        const err = e;
+        const body = res ? res.data : null;
+        if (res && body && body.error && res.status !== 200) {
+            if (typeof body.error === 'string') {
+                err.message = body.error;
+                err.code = res.status.toString();
+            }
+            else if (Array.isArray(body.error.errors)) {
+                err.message = body.error.errors
+                    .map((err2) => err2.message)
+                    .join('\n');
+                err.code = body.error.code;
+                err.errors = body.error.errors;
+            }
+            else {
+                err.message = body.error.message;
+                err.code = body.error.code || res.status;
+            }
+        }
+        else if (res && res.status >= 400) {
+            // Consider all 4xx and 5xx responses errors.
+            err.message = body;
+            err.code = res.status.toString();
+        }
+        return err;
+    }
+}
+exports.DefaultTransporter = DefaultTransporter;
+/**
+ * Default user agent.
+ */
+DefaultTransporter.USER_AGENT = `${PRODUCT_NAME}/${pkg.version}`;
+//# sourceMappingURL=transporters.js.map