Added node-modules

node_modules/googleapis/lib/transporters.js

@@ -0,0 +1,90 @@
+/**
+ * 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.
+ */
+
+var request = require('request'),
+    pkg = require('../package.json');
+
+/**
+ * Default transporter constructor.
+ * Wraps request and callback functions.
+ */
+function DefaultTransporter() {}
+
+/**
+ * Default user agent.
+ */
+DefaultTransporter.prototype.USER_AGENT =
+    'google-api-nodejs-client/' + pkg.version;
+
+/**
+ * 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 || {};
+  opts.headers['User-Agent'] = opts.headers['User-Agent'] ?
+      opts.headers['User-Agent'] + ' ' + this.USER_AGENT : this.USER_AGENT;
+  return opts;
+};
+
+/**
+ * Makes a request with given options and invokes callback.
+ * @param {object} opts Options.
+ * @param {Function=} opt_callback Optional callback.
+ */
+DefaultTransporter.prototype.request = function(opts, opt_callback) {
+  opts = this.configure(opts);
+  request(opts, this.wrapCallback_(opt_callback));
+};
+
+/**
+ * @private
+ * Wraps the response callback.
+ * @param {Function=} opt_callback Optional callback.
+ * @return {Function} Wrapped callback function.
+ */
+DefaultTransporter.prototype.wrapCallback_ = function(opt_callback) {
+  return function(err, res, body) {
+    if (err || !body) {
+      opt_callback && opt_callback(err, null, res);
+    } else if (body && body.error) {
+      // handle single request errors
+      err = body.error;
+      delete body.error;
+      opt_callback(err, body, res);
+    } else {
+      // TODO(burcud): Logic not related to the means of transportation
+      //               should be handled elsewhere.
+      var errors = null;
+      // iterate over objects to check if there are errors or not.
+      for (var i = 0; i < body.length; i++) {
+        if (body[i].error) {
+          errors = errors || [];
+          errors[i] = body[i].error;
+          delete body[i].error;
+        }
+      }
+      opt_callback && opt_callback(errors, body, res);
+    }
+  };
+};
+
+/**
+ * Exports DefaultTransporter.
+ */
+module.exports = DefaultTransporter;