The Tor Browser / file comparison
comparison: toolkit/modules/Http.jsm
toolkit/modules/Http.jsm
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
equal
deleted
inserted
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| -1:000000000000 | 0:630b93159651 |
|---|---|
| 1 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 2 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 4 | |
| 5 const EXPORTED_SYMBOLS = ["httpRequest", "percentEncode"]; | |
| 6 | |
| 7 const {classes: Cc, interfaces: Ci, utils: Cu} = Components; | |
| 8 | |
| 9 // Strictly follow RFC 3986 when encoding URI components. | |
| 10 // Accepts a unescaped string and returns the URI encoded string for use in | |
| 11 // an HTTP request. | |
| 12 function percentEncode(aString) | |
| 13 encodeURIComponent(aString).replace(/[!'()]/g, escape).replace(/\*/g, "%2A"); | |
| 14 | |
| 15 /* | |
| 16 * aOptions can have a variety of fields: | |
| 17 * headers, an array of headers | |
| 18 * postData, this can be: | |
| 19 * a string: send it as is | |
| 20 * an array of parameters: encode as form values | |
| 21 * null/undefined: no POST data. | |
| 22 * method, GET, POST or PUT (this is set automatically if postData exists). | |
| 23 * onLoad, a function handle to call when the load is complete, it takes two | |
| 24 * parameters: the responseText and the XHR object. | |
| 25 * onError, a function handle to call when an error occcurs, it takes three | |
| 26 * parameters: the error, the responseText and the XHR object. | |
| 27 * logger, an object that implements the debug and log methods (e.g. log.jsm). | |
| 28 * | |
| 29 * Headers or post data are given as an array of arrays, for each each inner | |
| 30 * array the first value is the key and the second is the value, e.g. | |
| 31 * [["key1", "value1"], ["key2", "value2"]]. | |
| 32 */ | |
| 33 function httpRequest(aUrl, aOptions) { | |
| 34 let xhr = Cc["@mozilla.org/xmlextras/xmlhttprequest;1"] | |
| 35 .createInstance(Ci.nsIXMLHttpRequest); | |
| 36 xhr.mozBackgroundRequest = true; // no error dialogs | |
| 37 xhr.open(aOptions.method || (aOptions.postData ? "POST" : "GET"), aUrl); | |
| 38 xhr.channel.loadFlags = Ci.nsIChannel.LOAD_ANONYMOUS | // don't send cookies | |
| 39 Ci.nsIChannel.LOAD_BYPASS_CACHE | | |
| 40 Ci.nsIChannel.INHIBIT_CACHING; | |
| 41 xhr.onerror = function(aProgressEvent) { | |
| 42 if (aOptions.onError) { | |
| 43 // adapted from toolkit/mozapps/extensions/nsBlocklistService.js | |
| 44 let request = aProgressEvent.target; | |
| 45 let status; | |
| 46 try { | |
| 47 // may throw (local file or timeout) | |
| 48 status = request.status; | |
| 49 } | |
| 50 catch (e) { | |
| 51 request = request.channel.QueryInterface(Ci.nsIRequest); | |
| 52 status = request.status; | |
| 53 } | |
| 54 // When status is 0 we don't have a valid channel. | |
| 55 let statusText = status ? request.statusText : "offline"; | |
| 56 aOptions.onError(statusText, null, this); | |
| 57 } | |
| 58 }; | |
| 59 xhr.onload = function(aRequest) { | |
| 60 try { | |
| 61 let target = aRequest.target; | |
| 62 if (aOptions.logger) | |
| 63 aOptions.logger.debug("Received response: " + target.responseText); | |
| 64 if (target.status < 200 || target.status >= 300) { | |
| 65 let errorText = target.responseText; | |
| 66 if (!errorText || /<(ht|\?x)ml\b/i.test(errorText)) | |
| 67 errorText = target.statusText; | |
| 68 throw target.status + " - " + errorText; | |
| 69 } | |
| 70 if (aOptions.onLoad) | |
| 71 aOptions.onLoad(target.responseText, this); | |
| 72 } catch (e) { | |
| 73 Cu.reportError(e); | |
| 74 if (aOptions.onError) | |
| 75 aOptions.onError(e, aRequest.target.responseText, this); | |
| 76 } | |
| 77 }; | |
| 78 | |
| 79 if (aOptions.headers) { | |
| 80 aOptions.headers.forEach(function(header) { | |
| 81 xhr.setRequestHeader(header[0], header[1]); | |
| 82 }); | |
| 83 } | |
| 84 | |
| 85 // Handle adding postData as defined above. | |
| 86 let POSTData = aOptions.postData || ""; | |
| 87 if (Array.isArray(POSTData)) { | |
| 88 xhr.setRequestHeader("Content-Type", | |
| 89 "application/x-www-form-urlencoded; charset=utf-8"); | |
| 90 POSTData = POSTData.map(function(p) p[0] + "=" + percentEncode(p[1])) | |
| 91 .join("&"); | |
| 92 } | |
| 93 | |
| 94 if (aOptions.logger) { | |
| 95 aOptions.logger.log("sending request to " + aUrl + " (POSTData = " + | |
| 96 POSTData + ")"); | |
| 97 } | |
| 98 xhr.send(POSTData); | |
| 99 return xhr; | |
| 100 } |
