1st of all, assert your .rtorrent.rc has something like the following line:
schedule = watch_directory,5,5,load_start=$HOME/downloads/*.torrent # this is where rTorrent looks for torrent files to add.
2nd, create a file (name it something like maglink-rtorrent.sh) and add the following script:
#!/bin/bash
cd $HOME/downloads # set your watch directory here (where rTorrent looks for torrent files)
[[ "$1" =~ xt=urn:btih:([^&/]+) ]] || exit;
echo "d10:magnet-uri${#1}:${1}e" > "meta-${BASH_REMATCH[1]}.torrent"
The above script is from Gonzih's dev blog
Don't forget to make it executable
chmod +x maglink-rtorrent.sh
3rd, there's the matter of associating the links with the script. In Firefox, enter
about:config
in the address bar (click OK or whatever).
Right click and choose New->boolean. Enter, as a name for the new key:
network.protocol-handler.expose.magnet
and choose false.
Taken from the Arch Wiki
Click on a magnet link and choose the script we created in the first step.
Next time you run rTorrent, there should be a long hash and stuff, which will later be renamed to the name of the torrent you clicked the respective magnet link when the metadata has been downloaded.
kthxbye
/pax
EDIT: forgot links to sources that are rightfully credited.
