Add Trackers from a URL list

[teddyrogers]

Feature request, when adding a tracker, instead of accepting only individual tracker URL's allow adding a compiled list from a link, e.g.

https://raw.githubusercontent.com/ngosang/trackerslist/master/trackers_all.txt

qBittorrent has something similar and is able to download a µTorrent compatible list and add the trackers from the list.

It would also be good if the URL trackers list was made permanent (available) to add even after closing and restarting Tribler, without manually copy pasting the URL each time.

Having the URL list available to add (either manually or automatically) whilst importing new torrents would also be great.

[qstokkink]

Thanks for the suggestion! I think we can look at this for 8.1.0.

[qstokkink]

I'm thinking of implementing this as follows.

GUI:

• Under the Settings / General / Default download settings add a Default trackers file: [input field] [Browse button].

Config:

• Add a key ["libtorrent"]["download_defaults"]["trackers_file"] that contains a str pointing to a file.

DownloadManager:

• After ensuring a TorrentDef exists, in the following line, add in the contents of the trackers file (if it is set). The code after that should ensure that trackers get updated or newly added.
  

  tribler/src/tribler/core/libtorrent/download_manager/download_manager.py

  Line 677 in 3fc4ad3

  assert tdef is not None, "tdef MUST not be None after loading torrent"

[qstokkink]

Upon second thought: if we add the default trackers in DownloadManager.start_download(), they will be re-added after manual removal (when loading the .conf file). It's probably best to only do this once, after a user added a torrent: through the REST API. In that case, we have to add the trackers after this code:

tribler/src/tribler/core/libtorrent/restapi/downloads_endpoint.py

Lines 442 to 445 in 3fc4ad3

	if tdef:
	download = await self.download_manager.start_download(tdef=tdef, config=download_config)
	elif uri:
	download = await self.download_manager.start_download_from_uri(uri, config=download_config)