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-rw-r--r--application/basilisk/modules/Feeds.jsm103
1 files changed, 103 insertions, 0 deletions
diff --git a/application/basilisk/modules/Feeds.jsm b/application/basilisk/modules/Feeds.jsm
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+++ b/application/basilisk/modules/Feeds.jsm
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+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+this.EXPORTED_SYMBOLS = [ "Feeds" ];
+
+Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
+Components.utils.import("resource://gre/modules/Services.jsm");
+
+XPCOMUtils.defineLazyModuleGetter(this, "BrowserUtils",
+ "resource://gre/modules/BrowserUtils.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "RecentWindow",
+ "resource:///modules/RecentWindow.jsm");
+
+const { interfaces: Ci, classes: Cc } = Components;
+
+this.Feeds = {
+ init() {
+ let mm = Cc["@mozilla.org/globalmessagemanager;1"].getService(Ci.nsIMessageListenerManager);
+ mm.addMessageListener("WCCR:registerProtocolHandler", this);
+ mm.addMessageListener("WCCR:registerContentHandler", this);
+
+ Services.ppmm.addMessageListener("WCCR:setAutoHandler", this);
+ Services.ppmm.addMessageListener("FeedConverter:addLiveBookmark", this);
+ },
+
+ receiveMessage(aMessage) {
+ let data = aMessage.data;
+ switch (aMessage.name) {
+ case "WCCR:registerProtocolHandler": {
+ let registrar = Cc["@mozilla.org/embeddor.implemented/web-content-handler-registrar;1"].
+ getService(Ci.nsIWebContentHandlerRegistrar);
+ registrar.registerProtocolHandler(data.protocol, data.uri, data.title,
+ aMessage.target);
+ break;
+ }
+
+ case "WCCR:registerContentHandler": {
+ let registrar = Cc["@mozilla.org/embeddor.implemented/web-content-handler-registrar;1"].
+ getService(Ci.nsIWebContentHandlerRegistrar);
+ registrar.registerContentHandler(data.contentType, data.uri, data.title,
+ aMessage.target);
+ break;
+ }
+
+ case "WCCR:setAutoHandler": {
+ let registrar = Cc["@mozilla.org/embeddor.implemented/web-content-handler-registrar;1"].
+ getService(Ci.nsIWebContentConverterService);
+ registrar.setAutoHandler(data.contentType, data.handler);
+ break;
+ }
+
+ case "FeedConverter:addLiveBookmark": {
+ let topWindow = RecentWindow.getMostRecentBrowserWindow();
+ topWindow.PlacesCommandHook.addLiveBookmark(data.spec, data.title, data.subtitle)
+ .catch(Components.utils.reportError);
+ break;
+ }
+ }
+ },
+
+ /**
+ * isValidFeed: checks whether the given data represents a valid feed.
+ *
+ * @param aLink
+ * An object representing a feed with title, href and type.
+ * @param aPrincipal
+ * The principal of the document, used for security check.
+ * @param aIsFeed
+ * Whether this is already a known feed or not, if true only a security
+ * check will be performed.
+ */
+ isValidFeed(aLink, aPrincipal, aIsFeed) {
+ if (!aLink || !aPrincipal)
+ return false;
+
+ var type = aLink.type.toLowerCase().replace(/^\s+|\s*(?:;.*)?$/g, "");
+ if (!aIsFeed) {
+ aIsFeed = (type == "application/rss+xml" ||
+ type == "application/atom+xml");
+ }
+
+ if (aIsFeed) {
+ // re-create the principal as it may be a CPOW.
+ // once this can't be a CPOW anymore, we should just use aPrincipal instead
+ // of creating a new one.
+ let principalURI = BrowserUtils.makeURIFromCPOW(aPrincipal.URI);
+ let principalToCheck =
+ Services.scriptSecurityManager.createCodebasePrincipal(principalURI, aPrincipal.originAttributes);
+ try {
+ BrowserUtils.urlSecurityCheck(aLink.href, principalToCheck,
+ Ci.nsIScriptSecurityManager.DISALLOW_INHERIT_PRINCIPAL);
+ return type || "application/rss+xml";
+ } catch (ex) {
+ }
+ }
+
+ return null;
+ },
+
+};