python-oxlib/oxlib/torrent.py

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# -*- coding: utf-8 -*-
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# vi:si:et:sw=4:sts=4:ts=4
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# GPL 2007
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from threading import Event
import sha
from os import stat
from BitTornado.BT1.makemetafile import make_meta_file
from BitTornado.bencode import bencode, bdecode
def createTorrent(file, url, params = {}, flag = Event(),
progress = lambda x: None, progress_percent = 1):
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"Creates a torrent for a given file, using url as tracker url"
return make_meta_file(file, url, params, flag, progress, progress_percent)
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def getInfoHash(torrentFile):
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"Returns Torrent Info Hash from torrent file"
metainfo_file = open(torrentFile, 'rb')
metainfo = bdecode(metainfo_file.read())
info = metainfo['info']
return sha.sha(bencode(info)).hexdigest().upper()
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def getTorrentInfoFromFile(torrentFile):
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f = open(torrentFile, 'rb')
data = f.read()
f.close()
tinfo = getTorrentInfo(data)
tinfo['timestamp'] = stat(torrentFile).st_ctime
return tinfo
def getTorrentInfo(data):
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"Returns Torrent Info from torrent file"
tinfo = {}
metainfo = bdecode(data)
info = metainfo['info']
piece_length = info['piece length']
if info.has_key('length'):
# let's assume we just have one file
file_length = info['length']
else:
# let's assume we have a directory structure
file_length = 0;
for f in info['files']:
file_length += f['length']
for key in info:
if key != 'pieces':
tinfo[key] = info[key]
for key in metainfo:
if key != 'info':
tinfo[key] = metainfo[key]
tinfo['size'] = file_length
tinfo['hash'] = sha.sha(bencode(info)).hexdigest()
tinfo['announce'] = metainfo['announce']
return tinfo
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def getTorrentSize(torrentFile):
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"Returns Size of files in torrent file in bytes"
return getTorrentInfo(torrentFile)['size']
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