Fix for libtorrent torrent collecting

Tribler/Core/APIImplementation/LaunchManyCore.py

@@ -390,6 +390,7 @@ def write_my_pref():
 
             if isinstance(tdef, TorrentDefNoMetainfo):
                 self.torrent_db.addInfohash(tdef.get_infohash(), commit=commit)
+                self.torrent_db.updateTorrent(tdef.get_infohash(), name=tdef.get_name().encode('utf_8'), commit=commit)
                 write_my_pref()
             elif self.rtorrent_handler:
                 self.rtorrent_handler.save_torrent(tdef, write_my_pref)

Tribler/Core/Libtorrent/LibtorrentDownloadImpl.py

@@ -321,6 +321,14 @@ def process_alert(self, alert, alert_type):
 
     def on_metadata_received_alert(self, alert):
         self.metadata = {'info': lt.bdecode(self.handle.get_torrent_info().metadata())}
+
+        trackers = [tracker['url'] for tracker in self.handle.trackers()]
+        if trackers:
+            if len(trackers) > 1:
+                self.metadata["announce-list"] = [trackers]
+            else:
+                self.metadata["announce"] = trackers[0]
+
         self.tdef = TorrentDef.load_from_dict(self.metadata)
         self.orig_files = [torrent_file.path for torrent_file in lt.torrent_info(self.metadata).files()]
         self.set_files()

Tribler/Main/Dialogs/SaveAs.py

@@ -83,11 +83,12 @@ def __init__(self, parent, tdef, defaultdir, defaultname, configfile, selectedFi
             torrentsearch_manager = self.guiutility.torrentsearch_manager
             def do_collect(delayedResult):
                 torrent = delayedResult.get()
-                def callback():
-                    torrent_filename = torrentsearch_manager.getCollectedFilename(torrent)
-                    tdef = TorrentDef.load(torrent_filename)
-                    wx.CallAfter(self.SetCollected, tdef)
-                torrentsearch_manager.getTorrent(torrent, callback)
+                if torrent:
+                    def callback():
+                        torrent_filename = torrentsearch_manager.getCollectedFilename(torrent)
+                        tdef = TorrentDef.load(torrent_filename)
+                        wx.CallAfter(self.SetCollected, tdef)
+                    torrentsearch_manager.getTorrent(torrent, callback)
             def do_db():
                 return torrentsearch_manager.getTorrentByInfohash(tdef.get_infohash())
             startWorker(do_collect, do_db, retryOnBusy = True, priority = GUI_PRI_DISPERSY)