browser/modules/Feeds.jsm

Thu, 22 Jan 2015 13:21:57 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Thu, 22 Jan 2015 13:21:57 +0100
branch
TOR_BUG_9701
changeset 15
b8a032363ba2
permissions
-rw-r--r--

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

michael@0 1 /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0 2 * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0 3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0 4
michael@0 5 "use strict";
michael@0 6
michael@0 7 this.EXPORTED_SYMBOLS = [ "Feeds" ];
michael@0 8
michael@0 9 Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
michael@0 10
michael@0 11 XPCOMUtils.defineLazyModuleGetter(this, "BrowserUtils",
michael@0 12 "resource://gre/modules/BrowserUtils.jsm");
michael@0 13
michael@0 14 const Ci = Components.interfaces;
michael@0 15
michael@0 16 this.Feeds = {
michael@0 17
michael@0 18 /**
michael@0 19 * isValidFeed: checks whether the given data represents a valid feed.
michael@0 20 *
michael@0 21 * @param aLink
michael@0 22 * An object representing a feed with title, href and type.
michael@0 23 * @param aPrincipal
michael@0 24 * The principal of the document, used for security check.
michael@0 25 * @param aIsFeed
michael@0 26 * Whether this is already a known feed or not, if true only a security
michael@0 27 * check will be performed.
michael@0 28 */
michael@0 29 isValidFeed: function(aLink, aPrincipal, aIsFeed) {
michael@0 30 if (!aLink || !aPrincipal)
michael@0 31 return false;
michael@0 32
michael@0 33 var type = aLink.type.toLowerCase().replace(/^\s+|\s*(?:;.*)?$/g, "");
michael@0 34 if (!aIsFeed) {
michael@0 35 aIsFeed = (type == "application/rss+xml" ||
michael@0 36 type == "application/atom+xml");
michael@0 37 }
michael@0 38
michael@0 39 if (aIsFeed) {
michael@0 40 try {
michael@0 41 BrowserUtils.urlSecurityCheck(aLink.href, aPrincipal,
michael@0 42 Ci.nsIScriptSecurityManager.DISALLOW_INHERIT_PRINCIPAL);
michael@0 43 return type || "application/rss+xml";
michael@0 44 }
michael@0 45 catch(ex) {
michael@0 46 }
michael@0 47 }
michael@0 48
michael@0 49 return null;
michael@0 50 },
michael@0 51
michael@0 52 };

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