Bug 1018589 - Can't add RSS feed with Cyrillic URL -> support idn urls for feeds. r=mkmelin

mail/base/content/mailWindowOverlay.js

@@ -3592,6 +3592,10 @@ let FeedMessageHandler = {
           aMimeMsg.headers["content-base"][0]) {
         let url = aMimeMsg.headers["content-base"], uri;
         try {
+          let converter = Cc["@mozilla.org/intl/scriptableunicodeconverter"]
+                            .createInstance(Ci.nsIScriptableUnicodeConverter);
+          converter.charset = "UTF-8";
+          url = converter.ConvertToUnicode(url);
           uri = Services.io.newURI(url, null, null);
           url = uri.spec;
         }

mailnews/extensions/newsblog/content/Feed.js

@@ -251,7 +251,7 @@ Feed.prototype =
     if (url)
       url = url.QueryInterface(Ci.nsIRDFLiteral).Value;
     else
-      url = this.resource.Value;
+      url = this.resource.ValueUTF8;
 
     return url;
   },

mailnews/extensions/newsblog/content/FeedUtils.jsm

@@ -278,7 +278,7 @@ var FeedUtils = {
       while (enumerator.hasMoreElements())
       {
         let containerArc = enumerator.getNext();
-        let uri = containerArc.QueryInterface(Ci.nsIRDFResource).Value;
+        let uri = containerArc.QueryInterface(Ci.nsIRDFResource).ValueUTF8;
         feedUrlArray.push(uri);
       }
     }

mailnews/extensions/newsblog/content/feed-parser.js

@@ -340,7 +340,7 @@ FeedParser.prototype =
 
       // Prefer the value of the link tag to the item URI since the URI could be
       // a relative URN.
-      let uri = itemResource.Value;
+      let uri = itemResource.ValueUTF8;
       let link = this.getRDFTargetValue(ds, itemResource, FeedUtils.RSS_LINK);
       item.url = link || uri;
       item.description = this.getRDFTargetValue(ds, itemResource,

mailnews/extensions/newsblog/content/feed-subscriptions.js

@@ -1398,7 +1398,7 @@ var FeedSubscriptions = {
     let currentFolderServer = itemToEdit.parentFolder.server;
     let ds = FeedUtils.getSubscriptionsDS(currentFolderServer);
     let currentFolder = ds.GetTarget(resource, FeedUtils.FZ_DESTFOLDER, true);
-    let currentFolderURI = currentFolder.QueryInterface(Ci.nsIRDFResource).Value;
+    let currentFolderURI = currentFolder.QueryInterface(Ci.nsIRDFResource).ValueUTF8;
     let feed = new Feed(resource, currentFolderServer);
     feed.folder = itemToEdit.parentFolder;