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backend/node_modules/google-auth-library/lib/transporters.js

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+/**
+ * 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.
+ */
+"use strict";
+var __extends = (this && this.__extends) || (function () {
+    var extendStatics = Object.setPrototypeOf ||
+        ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
+        function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+    return function (d, b) {
+        extendStatics(d, b);
+        function __() { this.constructor = d; }
+        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+    };
+})();
+Object.defineProperty(exports, "__esModule", { value: true });
+var request = require("request");
+// tslint:disable-next-line
+var pkg = require('../package.json');
+var RequestError = (function (_super) {
+    __extends(RequestError, _super);
+    function RequestError() {
+        return _super !== null && _super.apply(this, arguments) || this;
+    }
+    return RequestError;
+}(Error));
+exports.RequestError = RequestError;
+var DefaultTransporter = (function () {
+    function DefaultTransporter() {
+    }
+    /**
+     * Configures request options before making a request.
+     * @param {object} opts Options to configure.
+     * @return {object} Configured options.
+     */
+    DefaultTransporter.prototype.configure = function (opts) {
+        // set transporter user agent
+        opts.headers = opts.headers || {};
+        if (!opts.headers['User-Agent']) {
+            opts.headers['User-Agent'] = DefaultTransporter.USER_AGENT;
+        }
+        else if (opts.headers['User-Agent'].indexOf(DefaultTransporter.USER_AGENT) ===
+            -1) {
+            opts.headers['User-Agent'] =
+                opts.headers['User-Agent'] + ' ' + DefaultTransporter.USER_AGENT;
+        }
+        return opts;
+    };
+    /**
+     * Makes a request with given options and invokes callback.
+     * @param {object} opts Options.
+     * @param {Function=} callback Optional callback.
+     * @return {Request} Request object
+     */
+    DefaultTransporter.prototype.request = function (opts, callback) {
+        opts = this.configure(opts);
+        return request(opts.uri || opts.url, opts, this.wrapCallback_(callback));
+    };
+    /**
+     * Wraps the response callback.
+     * @param {Function=} callback Optional callback.
+     * @return {Function} Wrapped callback function.
+     * @private
+     */
+    DefaultTransporter.prototype.wrapCallback_ = function (callback) {
+        return function (err, res, body) {
+            if (err || !body) {
+                return callback && callback(err, body, res);
+            }
+            // Only and only application/json responses should
+            // be decoded back to JSON, but there are cases API back-ends
+            // responds without proper content-type.
+            try {
+                body = JSON.parse(body);
+            }
+            catch (err) {
+                /* no op */
+            }
+            if (body && body.error && res.statusCode !== 200) {
+                if (typeof body.error === 'string') {
+                    err = new RequestError(body.error);
+                    err.code = res.statusCode;
+                }
+                else if (Array.isArray(body.error.errors)) {
+                    err = new RequestError(body.error.errors.map(function (err2) { return err2.message; }).join('\n'));
+                    err.code = body.error.code;
+                    err.errors = body.error.errors;
+                }
+                else {
+                    err = new RequestError(body.error.message);
+                    err.code = body.error.code || res.statusCode;
+                }
+                body = null;
+            }
+            else if (res.statusCode >= 400) {
+                // Consider all 4xx and 5xx responses errors.
+                err = new RequestError(body);
+                err.code = res.statusCode;
+                body = null;
+            }
+            if (callback) {
+                callback(err, body, res);
+            }
+        };
+    };
+    return DefaultTransporter;
+}());
+/**
+ * Default user agent.
+ */
+DefaultTransporter.USER_AGENT = 'google-api-nodejs-client/' + pkg.version;
+exports.DefaultTransporter = DefaultTransporter;
+//# sourceMappingURL=transporters.js.map