Add #890: If added torrent already exists, append extra trackers to it

ChangeLog

@@ -1,20 +1,21 @@
 === Deluge 1.3.3 (In Development) ===
 ==== Core ====
 	* Properly show the 'Checking Resume Data' state instead of just 7
-	* Fix #1788: Added ability to use XDG_DOWNLOAD_DIR as default download folder
+	* #1788: Added ability to use XDG_DOWNLOAD_DIR as default download folder
 	* Fix path error with torrent files prefixed with 'file://' from Firefox
-	* Fix #1869: Set the disk io read/write to bypass OS cache in Windows
-	* Fix #1504: Win32 run deluged as not logged in user via runas or service
+	* #1869: Fix setting the disk io read/write to bypass OS cache in Windows
+	* #1504: Fix win32 running deluged as not logged in user via runas or service
+	* #890: If added torrent already exists, append extra trackers to it
 
 ==== GtkUI ====
 	* Show the checking icon for torrents in the 'Checking Resume Data' state
 	* #1195: Fix right-click selecting issue when switching between folders and files
 	* Add F2 key shortcut for renaming filenames in the Files Tab
 	* Increase max piece size to 16 MiB in create torrent dialog
-	* Fix #1475: Save and restore Preferences dialog size from config
+	* #1475: Fix save and restore Preferences dialog size from config
 	* Add search as you type to the torrent view
-	* Fix #1456: No ETA showing with multiple files
-	* Fix #1560: FilesTab Progress value sorting by int instead of float
+	* #1456: Fix no ETA showing with multiple files
+	* #1560: Fix FilesTab Progress value sorting by int instead of float
 
 === AutoAdd ===
 	* #1861: Fix AutoAdd Warning (column number is a boolean)

deluge/core/torrentmanager.py

@@ -409,6 +409,33 @@ class TorrentManager(component.Component):
         add_torrent_params["auto_managed"] = False
         add_torrent_params["duplicate_is_error"] = True
 
+        # If torrent already exists just append any extra trackers.
+        add_torrent_id = str(add_torrent_params["ti"].info_hash())
+        if add_torrent_id in self.get_torrent_list():
+            log.debug("Torrent (%s) exists, checking for trackers to add...", add_torrent_id)
+            add_torrent_trackers = []
+            for value in add_torrent_params["ti"].trackers():
+                tracker = {}
+                tracker["url"] = value.url
+                tracker["tier"] = value.tier
+                add_torrent_trackers.append(tracker)
+
+            torrent_trackers = {}
+            tracker_list = []
+            for tracker in  self[add_torrent_id].get_status(["trackers"])["trackers"]:
+                torrent_trackers[(tracker["url"])] = tracker
+                tracker_list.append(tracker)
+
+            added_tracker = False
+            for tracker in add_torrent_trackers:
+                if tracker['url'] not in torrent_trackers:
+                    tracker_list.append(tracker)
+                    added_tracker = True
+
+            if added_tracker:
+                self[add_torrent_id].set_trackers(tracker_list)
+            return
+
         # We need to pause the AlertManager momentarily to prevent alerts
         # for this torrent being generated before a Torrent object is created.
         component.pause("AlertManager")