mirror of
https://github.com/SickGear/SickGear.git
synced 2024-11-16 18:05:04 +00:00
65 lines
2 KiB
Python
65 lines
2 KiB
Python
#!/usr/bin/env python2
|
|
# -*- coding: utf-8 -*-
|
|
#
|
|
# GuessIt - A library for guessing information from filenames
|
|
# Copyright (c) 2011 Nicolas Wack <wackou@gmail.com>
|
|
#
|
|
# GuessIt is free software; you can redistribute it and/or modify it under
|
|
# the terms of the Lesser GNU General Public License as published by
|
|
# the Free Software Foundation; either version 3 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# GuessIt is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# Lesser GNU General Public License for more details.
|
|
#
|
|
# You should have received a copy of the Lesser GNU General Public License
|
|
# along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
#
|
|
|
|
from __future__ import unicode_literals
|
|
from guessit import s, to_hex
|
|
import hashlib
|
|
import os.path
|
|
|
|
|
|
def hash_file(filename):
|
|
"""Returns the ed2k hash of a given file.
|
|
|
|
>>> s(hash_file('tests/dummy.srt'))
|
|
'ed2k://|file|dummy.srt|44|1CA0B9DED3473B926AA93A0A546138BB|/'
|
|
"""
|
|
return 'ed2k://|file|%s|%d|%s|/' % (os.path.basename(filename),
|
|
os.path.getsize(filename),
|
|
hash_filehash(filename).upper())
|
|
|
|
|
|
def hash_filehash(filename):
|
|
"""Returns the ed2k hash of a given file.
|
|
|
|
This function is taken from:
|
|
http://www.radicand.org/blog/orz/2010/2/21/edonkey2000-hash-in-python/
|
|
"""
|
|
md4 = hashlib.new('md4').copy
|
|
|
|
def gen(f):
|
|
while True:
|
|
x = f.read(9728000)
|
|
if x:
|
|
yield x
|
|
else:
|
|
return
|
|
|
|
def md4_hash(data):
|
|
m = md4()
|
|
m.update(data)
|
|
return m
|
|
|
|
with open(filename, 'rb') as f:
|
|
a = gen(f)
|
|
hashes = [md4_hash(data).digest() for data in a]
|
|
if len(hashes) == 1:
|
|
return to_hex(hashes[0])
|
|
else:
|
|
return md4_hash(reduce(lambda a, d: a + d, hashes, "")).hexd
|