The Tor Browser / file comparison
comparison: toolkit/identity/Sandbox.jsm
toolkit/identity/Sandbox.jsm
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
equal
deleted
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| -1:000000000000 | 0:86283487bff2 |
|---|---|
| 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 file, | |
| 3 * You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 4 | |
| 5 "use strict"; | |
| 6 | |
| 7 this.EXPORTED_SYMBOLS = ["Sandbox"]; | |
| 8 | |
| 9 const {classes: Cc, interfaces: Ci, utils: Cu} = Components; | |
| 10 | |
| 11 const XHTML_NS = "http://www.w3.org/1999/xhtml"; | |
| 12 | |
| 13 Cu.import("resource://gre/modules/XPCOMUtils.jsm"); | |
| 14 Cu.import("resource://gre/modules/Services.jsm"); | |
| 15 | |
| 16 XPCOMUtils.defineLazyModuleGetter(this, | |
| 17 "Logger", | |
| 18 "resource://gre/modules/identity/LogUtils.jsm"); | |
| 19 | |
| 20 /** | |
| 21 * An object that represents a sandbox in an iframe loaded with aURL. The | |
| 22 * callback provided to the constructor will be invoked when the sandbox is | |
| 23 * ready to be used. The callback will receive this object as its only argument. | |
| 24 * | |
| 25 * You must call free() when you are finished with the sandbox to explicitly | |
| 26 * free up all associated resources. | |
| 27 * | |
| 28 * @param aURL | |
| 29 * (string) URL to load in the sandbox. | |
| 30 * | |
| 31 * @param aCallback | |
| 32 * (function) Callback to be invoked with a Sandbox, when ready. | |
| 33 */ | |
| 34 this.Sandbox = function Sandbox(aURL, aCallback) { | |
| 35 // Normalize the URL so the comparison in _makeSandboxContentLoaded works | |
| 36 this._url = Services.io.newURI(aURL, null, null).spec; | |
| 37 this._log("Creating sandbox for:", this._url); | |
| 38 this._createFrame(); | |
| 39 this._createSandbox(aCallback); | |
| 40 }; | |
| 41 | |
| 42 this.Sandbox.prototype = { | |
| 43 | |
| 44 /** | |
| 45 * Use the outer window ID as the identifier of the sandbox. | |
| 46 */ | |
| 47 get id() { | |
| 48 return this._frame.contentWindow.QueryInterface(Ci.nsIInterfaceRequestor) | |
| 49 .getInterface(Ci.nsIDOMWindowUtils).outerWindowID; | |
| 50 }, | |
| 51 | |
| 52 /** | |
| 53 * Reload the URL in the sandbox. This is useful to reuse a Sandbox (same | |
| 54 * id and URL). | |
| 55 */ | |
| 56 reload: function Sandbox_reload(aCallback) { | |
| 57 this._log("reload:", this.id, ":", this._url); | |
| 58 this._createSandbox(function createdSandbox(aSandbox) { | |
| 59 this._log("reloaded sandbox id:", aSandbox.id); | |
| 60 aCallback(aSandbox); | |
| 61 }.bind(this)); | |
| 62 }, | |
| 63 | |
| 64 /** | |
| 65 * Frees the sandbox and releases the iframe created to host it. | |
| 66 */ | |
| 67 free: function Sandbox_free() { | |
| 68 this._log("free:", this.id); | |
| 69 this._container.removeChild(this._frame); | |
| 70 this._frame = null; | |
| 71 this._container = null; | |
| 72 this._url = null; | |
| 73 }, | |
| 74 | |
| 75 /** | |
| 76 * Creates an empty, hidden iframe and sets it to the _frame | |
| 77 * property of this object. | |
| 78 */ | |
| 79 _createFrame: function Sandbox__createFrame() { | |
| 80 let hiddenWindow = Services.appShell.hiddenDOMWindow; | |
| 81 let doc = hiddenWindow.document; | |
| 82 | |
| 83 // Insert iframe in to create docshell. | |
| 84 let frame = doc.createElementNS(XHTML_NS, "iframe"); | |
| 85 frame.setAttribute("mozframetype", "content"); | |
| 86 frame.sandbox = "allow-forms allow-scripts allow-same-origin"; | |
| 87 frame.style.visibility = "collapse"; | |
| 88 doc.documentElement.appendChild(frame); | |
| 89 | |
| 90 let docShell = frame.contentWindow.QueryInterface(Ci.nsIInterfaceRequestor) | |
| 91 .getInterface(Ci.nsIWebNavigation) | |
| 92 .QueryInterface(Ci.nsIInterfaceRequestor) | |
| 93 .getInterface(Ci.nsIDocShell); | |
| 94 | |
| 95 // Stop about:blank from being loaded. | |
| 96 docShell.stop(Ci.nsIWebNavigation.STOP_NETWORK); | |
| 97 | |
| 98 // Disable some types of content | |
| 99 docShell.allowAuth = false; | |
| 100 docShell.allowPlugins = false; | |
| 101 docShell.allowImages = false; | |
| 102 docShell.allowMedia = false; | |
| 103 docShell.allowWindowControl = false; | |
| 104 | |
| 105 // Disable stylesheet loading since the document is not visible. | |
| 106 let markupDocViewer = docShell.contentViewer | |
| 107 .QueryInterface(Ci.nsIMarkupDocumentViewer); | |
| 108 markupDocViewer.authorStyleDisabled = true; | |
| 109 | |
| 110 // Set instance properties. | |
| 111 this._frame = frame; | |
| 112 this._container = doc.documentElement; | |
| 113 }, | |
| 114 | |
| 115 _createSandbox: function Sandbox__createSandbox(aCallback) { | |
| 116 let self = this; | |
| 117 function _makeSandboxContentLoaded(event) { | |
| 118 self._log("_makeSandboxContentLoaded:", self.id, | |
| 119 event.target.location.toString()); | |
| 120 if (event.target != self._frame.contentDocument) { | |
| 121 return; | |
| 122 } | |
| 123 self._frame.removeEventListener( | |
| 124 "DOMWindowCreated", _makeSandboxContentLoaded, true | |
| 125 ); | |
| 126 | |
| 127 aCallback(self); | |
| 128 }; | |
| 129 | |
| 130 this._frame.addEventListener("DOMWindowCreated", | |
| 131 _makeSandboxContentLoaded, | |
| 132 true); | |
| 133 | |
| 134 // Load the iframe. | |
| 135 let webNav = this._frame.contentWindow | |
| 136 .QueryInterface(Ci.nsIInterfaceRequestor) | |
| 137 .getInterface(Ci.nsIWebNavigation); | |
| 138 | |
| 139 webNav.loadURI( | |
| 140 this._url, | |
| 141 Ci.nsIWebNavigation.LOAD_FLAGS_BYPASS_CACHE, | |
| 142 null, // referrer | |
| 143 null, // postData | |
| 144 null // headers | |
| 145 ); | |
| 146 | |
| 147 }, | |
| 148 | |
| 149 _log: function Sandbox__log(...aMessageArgs) { | |
| 150 Logger.log.apply(Logger, ["sandbox"].concat(aMessageArgs)); | |
| 151 }, | |
| 152 | |
| 153 }; |
