Added node-modules

node_modules/googleapis/lib/auth/computeclient.js

@@ -0,0 +1,79 @@
+/**
+ * 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.
+ */
+
+var querystring = require('querystring');
+var Auth2Client = require('./oauth2client.js');
+var util = require('util');
+
+/**
+ * @private
+ * Google Compute Engine metadata server token endpoint.
+ */
+Compute.GOOGLE_OAUTH2_TOKEN_URL_ =
+  'http://metadata/computeMetadata/v1beta1/instance/service-accounts/default/token';
+
+/**
+ * @constructor
+ * Google Compute Engine service account credentials.
+ *
+ * Retrieve access token from the metadata server.
+ * See: https://developers.google.com/compute/docs/authentication
+ *
+ */
+function Compute() {
+  Compute.super_.call(this);
+}
+
+/**
+ * Inherit from Auth2Client.
+ */
+util.inherits(Compute, Auth2Client);
+
+/**
+ * Get the initial access token from compute metadata server.
+ * @param {function=} opt_callback Optional callback.
+ */
+Compute.prototype.authorize = function(opt_callback) {
+  var that = this;
+  that.refreshToken_(null, function(err, result) {
+    if (!err) {
+      that.credentials = result;
+      that.credentials.refresh_token = 'compute-placeholder';
+    }
+    opt_callback && opt_callback(err, result);
+  });
+};
+
+/**
+ * @private
+ * Refreshes the access token.
+ * @param {object=} ignored_
+ * @param {function=} opt_callback Optional callback.
+ */
+Compute.prototype.refreshToken_ = function(ignored_, opt_callback) {
+  var uri = this.opts.tokenUrl || Compute.GOOGLE_OAUTH2_TOKEN_URL_;
+  // request for new token
+  this.transporter.request({
+    method: 'GET',
+    uri: uri,
+    json: true
+  }, opt_callback);
+};
+
+/**
+ * Export Compute.
+ */
+module.exports = Compute;