1 | // Copyright 2011 Software Freedom Conservancy. All Rights Reserved. |
2 | // |
3 | // Licensed under the Apache License, Version 2.0 (the "License"); |
4 | // you may not use this file except in compliance with the License. |
5 | // You may obtain a copy of the License at |
6 | // |
7 | // http://www.apache.org/licenses/LICENSE-2.0 |
8 | // |
9 | // Unless required by applicable law or agreed to in writing, software |
10 | // distributed under the License is distributed on an "AS IS" BASIS, |
11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
12 | // See the License for the specific language governing permissions and |
13 | // limitations under the License. |
14 | |
15 | /** @fileoverview A XHR client. */ |
16 | |
17 | goog.provide('webdriver.http.XhrClient'); |
18 | |
19 | goog.require('goog.json'); |
20 | goog.require('goog.net.XmlHttp'); |
21 | goog.require('webdriver.http.Response'); |
22 | |
23 | |
24 | |
25 | /** |
26 | * A HTTP client that sends requests using XMLHttpRequests. |
27 | * @param {string} url URL for the WebDriver server to send commands to. |
28 | * @constructor |
29 | * @implements {webdriver.http.Client} |
30 | */ |
31 | webdriver.http.XhrClient = function(url) { |
32 | |
33 | /** @private {string} */ |
34 | this.url_ = url; |
35 | }; |
36 | |
37 | |
38 | /** @override */ |
39 | webdriver.http.XhrClient.prototype.send = function(request, callback) { |
40 | try { |
41 | var xhr = /** @type {!XMLHttpRequest} */ (goog.net.XmlHttp()); |
42 | var url = this.url_ + request.path; |
43 | xhr.open(request.method, url, true); |
44 | |
45 | xhr.onload = function() { |
46 | callback(null, webdriver.http.Response.fromXmlHttpRequest(xhr)); |
47 | }; |
48 | |
49 | xhr.onerror = function() { |
50 | callback(Error([ |
51 | 'Unable to send request: ', request.method, ' ', url, |
52 | '\nOriginal request:\n', request |
53 | ].join(''))); |
54 | }; |
55 | |
56 | for (var header in request.headers) { |
57 | xhr.setRequestHeader(header, request.headers[header] + ''); |
58 | } |
59 | |
60 | xhr.send(goog.json.serialize(request.data)); |
61 | } catch (ex) { |
62 | callback(ex); |
63 | } |
64 | }; |