#!/usr/bin/env python# The contents of this file are subject to the BitTorrent Open Source License# Version 1.0 (the License).  You may not copy or use this file, in either# source code or executable form, except in compliance with the License.  You# may obtain a copy of the License at http://www.bittorrent.com/license/.## Software distributed under the License is distributed on an AS IS basis,# WITHOUT WARRANTY OF ANY KIND, either express or implied.  See the License# for the specific language governing rights and limitations under the# License.# Written by Henry 'Pi' James and Loring Holdenfrom sys import *from os.path import *from sha import *from BitTorrent.bencode import *NAME, EXT = splitext(basename(argv[0]))VERSION = '20021207'print '%s %s - decode BitTorrent metainfo files' % (NAME, VERSION)printif len(argv) == 1:    print '%s file1.torrent file2.torrent file3.torrent ...' % argv[0]    print    exit(2) # common exit code for syntax errorfor metainfo_name in argv[1:]:    metainfo_file = open(metainfo_name, 'rb')    metainfo = bdecode(metainfo_file.read())    metainfo_file.close()    announce = metainfo['announce']    info = metainfo['info']    info_hash = sha(bencode(info))    print 'metainfo file.: %s' % basename(metainfo_name)    print 'info hash.....: %s' % info_hash.hexdigest()    piece_length = info['piece length']    if info.has_key('length'):        # let's assume we just have a file        print 'file name.....: %s' % info['name']        file_length = info['length']        name ='file size.....:'    else:        # let's assume we have a directory structure        print 'directory name: %s' % info['name']        print 'files.........: '        file_length = 0;        for file in info['files']:            path = ''            for item in file['path']:                if (path != ''):                   path = path + "/"                path = path + item            print '   %s (%d)' % (path, file['length'])            file_length += file['length']        name = 'archive size..:'    piece_number, last_piece_length = divmod(file_length, piece_length)    print '%s %i (%i * %i + %i)' \          % (name,file_length, piece_number, piece_length, last_piece_length)    print 'announce url..: %s' % announce    print