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Magnet links creation with qBt - Hash and Trackers
Posted: Wed Nov 21, 2012 9:33 am
by longho
Hi allĀ
I've two questions about the creation of magnet links inside qBittorrent (I'm using the Linux 3.0.6 version). To create a magnet link: right click on a listed torrent, then "copy magnet link". But:
1) qBittorrent modifies the hash in the magnet link. Why?
2) I want to include all the trackers added to the torrent. But the
&tr= option is empty or include only one tracker. Why?
Thanks in advance,
Lo
Re: Magnet links creation with qBt - Hash and Trackers
Posted: Wed Nov 21, 2012 10:48 am
by Dayman
- Can you clarify?
- This looks like either deliberate or temporary behavior of libtorrent. The code only copies the first tracker in array.
I will ask about this on LT bugtracker.
Re: Magnet links creation with qBt - Hash and Trackers
Posted: Wed Nov 21, 2012 11:14 am
by longho
Hi Dayman,
For the first question:
I'm testing several bittorrent client on Ubuntu.
Taking Transmission (the default client), if my torrent hash is (i.e): 326e209ad9eb.... etc... when I create the magnet link, the program generates a link like this: magnet:?xt=urn:btih:326e209ad9eb.... etc...
The btih (BitTorrent Info Hash) is the same.
Taking qBittorrent, if my torrent hash is (i.e): 4cc67ef49580f3... etc... when I create the magnet link, the program generates a link like this: magnet:?xt=urn:btih:JTDH55EVQD... etc...
For the second question:
Transmission copies all the trackers of the torrent (even if I add trackers in a second time). qBittorrent only the first or nothing.
Kind regards,
Lo
Re: Magnet links creation with qBt - Hash and Trackers
Posted: Wed Nov 21, 2012 11:17 am
by Dayman
For the first one: it does not change hash in any way. It encodes it in base32 for compatibility.
Check 'magnet URI format' here:
http://www.bittorrent.org/beps/bep_0009.html
So this is standard compliant.
Second one is now reported here:
https://code.google.com/p/libtorrent/is ... 9&sort=-id
Re: Magnet links creation with qBt - Hash and Trackers
Posted: Wed Nov 21, 2012 12:57 pm
by longho
Thank you so much Dayman!
Regards,
Lo
Re: Magnet links creation with qBt - Hash and Trackers
Posted: Fri Nov 23, 2012 2:42 pm
by longho
Another behaviour I noticed:
If I load a .torrent file and then I modify the trakers inside qBt client, the created magnet link uses only the first tracker of the .torrent file (not that i specified for first). In other words:
- first tracker of the .torrent file (i.e): udp://tracker.xxx.org:80/announce
- first tracker specified (by me) in the client (i.e): udp://tracker.yyy.org:80/announce
Magnet link: magnet:?xt=urn:btih:ABCDEFGHAILMNOPQR...&dn=example.zip&tr=udp%3a%2f%2ftracker.xxx.org%3a80%2fannounce
Regards,
Longho
Re: Magnet links creation with qBt - Hash and Trackers
Posted: Fri Nov 23, 2012 7:00 pm
by Dayman
Re: Magnet links creation with qBt - Hash and Trackers
Posted: Sat Nov 24, 2012 10:35 am
by longho
Good news! Thanks Dayman
