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109 lines
3.7 KiB
JavaScript
109 lines
3.7 KiB
JavaScript
// -*- Mode: javascript; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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// This Source Code Form is subject to the terms of the Mozilla Public
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// License, v. 2.0. If a copy of the MPL was not distributed with this
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// file, You can obtain one at http://mozilla.org/MPL/2.0/.
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this.EXPORTED_SYMBOLS = ["RemoteAddonsChild"];
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const Ci = Components.interfaces;
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const Cc = Components.classes;
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const Cu = Components.utils;
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Cu.import("resource://gre/modules/XPCOMUtils.jsm");
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Cu.import('resource://gre/modules/Services.jsm');
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/**
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* This code registers an nsIContentPolicy in the child process. When
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* it runs, it notifies the parent that it needs to run its own
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* nsIContentPolicy list. If any policy in the parent rejects the load,
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* that answer is returned to the child.
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*/
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let ContentPolicyChild = {
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_classDescription: "Addon shim content policy",
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_classID: Components.ID("6e869130-635c-11e2-bcfd-0800200c9a66"),
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_contractID: "@mozilla.org/addon-child/policy;1",
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/**
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* We only notify the parent of the load if it has any
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* non-builtin policies registered.
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*/
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_childNeedsHook: false,
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init: function(aContentGlobal) {
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let registrar = Components.manager.QueryInterface(Ci.nsIComponentRegistrar);
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registrar.registerFactory(this._classID, this._classDescription, this._contractID, this);
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var catMan = Cc["@mozilla.org/categorymanager;1"].getService(Ci.nsICategoryManager);
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catMan.addCategoryEntry("content-policy", this._contractID, this._contractID, false, true);
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let policiesToIgnore = [];
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let services = Cc["@mozilla.org/categorymanager;1"].getService(Ci.nsICategoryManager)
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.enumerateCategory("content-policy");
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while (services.hasMoreElements()) {
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let item = services.getNext();
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let name = item.QueryInterface(Components.interfaces.nsISupportsCString).toString();
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policiesToIgnore.push(name);
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}
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let cpmm = Cc["@mozilla.org/childprocessmessagemanager;1"]
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.getService(Ci.nsISyncMessageSender);
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cpmm.addMessageListener("Addons:ContentPolicy:NeedHook", this);
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cpmm.sendAsyncMessage("Addons:ContentPolicy:IgnorePolicies", { "policies": policiesToIgnore });
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},
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receiveMessage: function(aMessage) {
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switch (aMessage.name) {
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case "Addons:ContentPolicy:NeedHook":
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this._childNeedsHook = aMessage.data.needed;
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break;
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}
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},
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QueryInterface: XPCOMUtils.generateQI([Ci.nsIContentPolicy, Ci.nsIObserver,
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Ci.nsIChannelEventSink, Ci.nsIFactory,
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Ci.nsISupportsWeakReference]),
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shouldLoad: function(contentType, contentLocation, requestOrigin, node, mimeTypeGuess, extra) {
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if (!this._childNeedsHook)
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return Ci.nsIContentPolicy.ACCEPT;
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let cpmm = Cc["@mozilla.org/childprocessmessagemanager;1"]
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.getService(Ci.nsISyncMessageSender);
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var rval = cpmm.sendRpcMessage("Addons:ContentPolicy:Run", {
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contentType: contentType,
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mimeTypeGuess: mimeTypeGuess
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}, {
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contentLocation: contentLocation,
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requestOrigin: requestOrigin,
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node: node
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});
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if (rval.length != 1)
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return Ci.nsIContentPolicy.ACCEPT;
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return rval[0];
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},
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shouldProcess: function(contentType, contentLocation, requestOrigin, insecNode, mimeType, extra) {
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return Ci.nsIContentPolicy.ACCEPT;
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},
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createInstance: function(outer, iid) {
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if (outer)
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throw Cr.NS_ERROR_NO_AGGREGATION;
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return this.QueryInterface(iid);
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},
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};
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let RemoteAddonsChild = {
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initialized: false,
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init: function(aContentGlobal) {
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if (this.initialized)
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return;
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this.initialized = true;
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ContentPolicyChild.init(aContentGlobal);
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},
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};
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