What is the best way to find IP addresses of seeders/peers for a given torrent file

Question

I have implemented a python module that scrapes two torrent sites using python scrapy. It currently stores torrent data in a DB, and it has ability to download the torrent file by calling a bash script that downloads the .torrent files.

For research purposes in DB visualization I would like to know if it is possible, and if so, how to obtain IP addresses of seeders and peers of a specific torrent file. I would like to create a visualization to see correlations between torrent files , their types (movies, iso images, books, ..etc) to the locations they are seeded / peers are downloading from.

For instance here is what is inside one of the .torrent files I scraped:(just part of it)

d8:announce38:udp://tracker.publicbt.com:80/announce13:announce-listll38:udp://tracker.publicbt.com:80/announceel44:udp://tracker.openbittorrent.com:80/announceel35:udp://tracker.istole.it:80/announceel36:udp://open.demonii.com:1337/announceee7:comment61:Torrent downloaded from torrent cache at http://torcache.net/10:created by15:BitTorrent/782013:creation datei1384198882e8:encoding5:UTF-84:infod5:filesld6:lengthi25485e4:pathl69:Physics of Quantum Mechanics, The - Skinner, David, Binney, James.jpgeed6:lengthi1254e4:pathl69:Physics of Quantum Mechanics, The - Skinner, David, Binney, James.opfeed6:lengthi4609366e4:pathl69:Physics of Quantum Mechanics, The - Skinner, David, Binney, James.pdfeee4:name52:The Physics of Quantum Mechanics- Oxford, 2013 [PDF]12:piece lengthi16384e6:pieces5660:³é^G^W^H<83>æZèÖunB2ä<82>ªb­<96>".ËWvÓo^?.F´<8e>ÍZQQÕ¬8Þ+þXS<91>-S^O9<91>¸<9f>Ê'<97>3ÎpÕöC^CNÞÔ»^F3HJ,=Àòà¶,<81><ö<84><8a>ÃÀdÔ,^SýZ<8f>!Q"r¹<98>³Agì=ûr"ged<96>½<89>à ¥E'Å^V|ïª{^M<88><9c>»z½/qsø<^8^@í¤Ô[_<83><9e><97>Éãs^V×»Ö\Ûë"^NÝó<9e>¬^Kbì«õ<98>²<82>^\_PÍFª^_µ^L<9b>^Vâ^NhÛ<87>-@ê\íäÎ/³<8c>^]jÀóp<87>¬ <87><8e>,?<8d>&^^®Rê±ÃFÏÂ&Ü]!ö<87><zü{SîÖg.I±Ã^QÃ~Ê>uÛÜä^Cw^_d_r0<8a>h<81><9b>êªE­Ça^N¢M4Èv^_<96>lË,g­^Fò«^]¿<9c><88>p^[Ñ.ìk©t

Will I be able use this info in the file to connect to the tracker and move forward finding peers and seeders for that file?

Answer 1

Essentially yes, since that what the BitTorrent clients do. Take a look at the Bittorrent Specification. The details of the file format are there, along with the protocol specification. That should tell you everything you need to know.