dom/activities/src/ActivityProxy.js@97036ab72558
dom/activities/src/ActivityProxy.js
Tue, 06 Jan 2015 21:39:09 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Tue, 06 Jan 2015 21:39:09 +0100
- branch
- TOR_BUG_9701
- changeset 8
- 97036ab72558
- permissions
- -rw-r--r--
Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.
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/. */
5 "use strict";
7 const Cc = Components.classes;
8 const Ci = Components.interfaces;
9 const Cu = Components.utils;
11 Cu.import("resource://gre/modules/XPCOMUtils.jsm");
12 Cu.import("resource://gre/modules/Services.jsm");
14 XPCOMUtils.defineLazyServiceGetter(this, "cpmm",
15 "@mozilla.org/childprocessmessagemanager;1",
16 "nsISyncMessageSender");
18 function debug(aMsg) {
19 //dump("-- ActivityProxy " + Date.now() + " : " + aMsg + "\n");
20 }
22 /**
23 * nsIActivityProxy implementation
24 * We keep a reference to the C++ Activity object, and
25 * communicate with the Message Manager to know when to
26 * fire events on it.
27 */
28 function ActivityProxy() {
29 debug("ActivityProxy");
30 this.activity = null;
31 let inParent = Cc["@mozilla.org/xre/app-info;1"].getService(Ci.nsIXULRuntime)
32 .processType == Ci.nsIXULRuntime.PROCESS_TYPE_DEFAULT;
33 debug("inParent: " + inParent);
34 Cu.import(inParent ? "resource://gre/modules/Webapps.jsm"
35 : "resource://gre/modules/AppsServiceChild.jsm");
36 }
38 ActivityProxy.prototype = {
39 startActivity: function actProxy_startActivity(aActivity, aOptions, aWindow) {
40 debug("startActivity");
42 this.window = aWindow;
43 this.activity = aActivity;
44 this.id = Cc["@mozilla.org/uuid-generator;1"]
45 .getService(Ci.nsIUUIDGenerator)
46 .generateUUID().toString();
47 // Retrieve the app's manifest url from the principal, so that we can
48 // later notify when the activity handler called postResult or postError
49 let principal = aWindow.document.nodePrincipal;
50 let appId = principal.appId;
51 let manifestURL = (appId != Ci.nsIScriptSecurityManager.NO_APP_ID &&
52 appId != Ci.nsIScriptSecurityManager.UNKNOWN_APP_ID)
53 ? DOMApplicationRegistry.getManifestURLByLocalId(appId)
54 : null;
55 cpmm.sendAsyncMessage("Activity:Start", { id: this.id,
56 options: {
57 name: aOptions.name,
58 data: aOptions.data
59 },
60 manifestURL: manifestURL,
61 pageURL: aWindow.document.location.href });
63 cpmm.addMessageListener("Activity:FireSuccess", this);
64 cpmm.addMessageListener("Activity:FireError", this);
65 },
67 receiveMessage: function actProxy_receiveMessage(aMessage) {
68 debug("Got message: " + aMessage.name);
69 let msg = aMessage.json;
70 if (msg.id != this.id)
71 return;
72 debug("msg=" + JSON.stringify(msg));
74 switch(aMessage.name) {
75 case "Activity:FireSuccess":
76 debug("FireSuccess");
77 Services.DOMRequest.fireSuccess(this.activity,
78 Cu.cloneInto(msg.result, this.window));
79 Services.obs.notifyObservers(null, "Activity:Success", null);
80 break;
81 case "Activity:FireError":
82 debug("FireError");
83 Services.DOMRequest.fireError(this.activity, msg.error);
84 Services.obs.notifyObservers(null, "Activity:Error", null);
85 break;
86 }
87 // We can only get one FireSuccess / FireError message, so cleanup as soon as possible.
88 this.cleanup();
89 },
91 cleanup: function actProxy_cleanup() {
92 debug("cleanup");
93 if (cpmm && !this.cleanedUp) {
94 cpmm.removeMessageListener("Activity:FireSuccess", this);
95 cpmm.removeMessageListener("Activity:FireError", this);
96 }
97 this.cleanedUp = true;
98 },
100 classID: Components.ID("{ba9bd5cb-76a0-4ecf-a7b3-d2f7c43c5949}"),
101 QueryInterface: XPCOMUtils.generateQI([Ci.nsIActivityProxy])
102 }
104 this.NSGetFactory = XPCOMUtils.generateNSGetFactory([ActivityProxy]);
