[tinus_hn]

The torrent file is downloaded over a secure connection that you can’t monitor. Can you please tell me which messages in the BitTorrent protocol contain the filenames?

[zyx321]

Can't you just look up the hash on DHT? Since hash is the only mandatory field in a Magnet URI.

[tinus_hn]

Of course but connecting to a peer to peer network and looking it up doesn’t sound ‘trivial’ to me.