Getting Magent Links from Deluge

My latest weekend-hack is a plugin that shows the magnet link for a torrent entry

Why

I had something torrented a long time ago, and a friend asked me for the torrent.
However, I haven’t kept the original .torrent file, she was tech-oriented enough so I can give her the hash/trackers by hand.
I ended up manually composing a magnet link for her, and figured “I wish this was a built-in functionality in Deluge”.

I then saw ticket #1337 that asked for something like this, which was implemented using CopyMagnetURI plugin.
My problem with this plugin is that it didn’t work for me, and I figured interfacing with the clipboard is inherently more complicated that just displaying the link.
I decided I’ll roll my own

Result

Check it out: https://github.com/BackSlasher/deluge-ShowMagnet

Process

I started from copying the Deluge Pieces Plugin, because it had some of the behaviour I was looking for (adding a UI element to the torrent details pane).
I then removed all of the bits related to the pieces, and instead displayed a label that occupied the whole panel.
I then moved to understanding how to build a magnet URI from torrent information, and added this to core.py to make it reusable from the WebUI, if I ever feel like it.
After that came integration, and voilà!