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| 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 | |
| 26 var 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 th
ose cases. | |
| 33 net.get = function(url, success) | |
| 34 { | |
| 35 $.get(url, success); | |
| 36 }; | |
| 37 | |
| 38 net.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 | |
| 60 net.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 | |
| 71 net.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 coopera
te | |
| 83 // by setting CORS headers. | |
| 84 net.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 })(); | |
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