1/*
2 * Copyright (C) 2011 Google Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26var net = net || {};
27
28(function () {
29
30// FIXME: Excise this last bit of jquery ajax code.
31// There are callers that depend on automatically parsing the content as JSON or XML
32// based off the content-type. Instead we should add net.json and net.xml for those cases.
33net.get = function(url, success)
34{
35    $.get(url, success);
36};
37
38net.ajax = function(options)
39{
40    var xhr = new XMLHttpRequest();
41    var method = options.type || 'GET';
42    var async = true;
43    xhr.open(method, options.url, async);
44    xhr.onload = function() {
45        if (xhr.status == 200 && options.success)
46            options.success(xhr.responseText);
47        else if (xhr.status != 200 && options.error)
48            options.error();
49    };
50    xhr.onerror = function() {
51        if (options.error)
52            options.error();
53    };
54    var data = options.data || null;
55    if (data)
56        xhr.setRequestHeader("content-type","application/x-www-form-urlencoded");
57    xhr.send(data);
58};
59
60net.post = function(url, data, success)
61{
62    net.ajax({
63        url: url,
64        type: 'POST',
65        data: data,
66        success: success,
67    });
68
69};
70
71net.probe = function(url, options)
72{
73    net.ajax({
74        url: url,
75        type: 'HEAD',
76        success: options.success,
77        error: options.error,
78    });
79};
80
81// We use XMLHttpRequest and CORS to fetch JSONP rather than using script tags.
82// That's better for security and performance, but we need the server to cooperate
83// by setting CORS headers.
84net.jsonp = function(url, callback)
85{
86    net.ajax({
87        url: url,
88        success: function(jsonp) {
89            callback(base.parseJSONP(jsonp));
90        },
91        error: function() {
92            callback({});
93        },
94    });
95};
96
97})();
98