make ox.torrent in python 2 and 3
This commit is contained in:
j
parent
8bfbaef598
commit
53fbc2e1fb
4 changed files with 235 additions and 127 deletions
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@ -5,15 +5,19 @@
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from threading import Event
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from hashlib import sha1
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import os
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from six import PY2
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from .bencode import bencode, bdecode
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if PY2:
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from .bencode import bencode, bdecode
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else:
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from .bencode3 import bencode, bdecode
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__all__ = ['create_torrent', 'get_info_hash', 'get_torrent_info', 'get_files', 'get_torrent_size']
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def create_torrent(file, url, params = {}, flag = Event(),
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progress = lambda x: None, progress_percent = 1):
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"Creates a torrent for a given file, using url as tracker url"
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from makemetafile import make_meta_file
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from .makemetafile import make_meta_file
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return make_meta_file(file, url, params, flag, progress, progress_percent)
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def get_info_hash(torrentFile):
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151
ox/torrent/bencode3.py
Normal file
151
ox/torrent/bencode3.py
Normal file
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@ -0,0 +1,151 @@
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##
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#
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# bencode.py python3 compatable bencode / bdecode
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#
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##
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def _decode_int(data):
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"""
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decode integer from bytearray
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return int, remaining data
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"""
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data = data[1:]
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end = data.index(b'e')
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return int(data[:end],10), data[end+1:]
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def _decode_str(data):
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"""
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decode string from bytearray
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return string, remaining data
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"""
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start = data.index(b':')
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l = int(data[:start].decode(),10)
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if l <= 0:
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raise Exception('invalid string size: %d'%d)
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start += 1
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ret = bytes(data[start:start+l])
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data = data[start+l:]
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return ret, data
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def _decode_list(data):
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"""
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decode list from bytearray
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return list, remaining data
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"""
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ls = []
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data = data[1:]
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while data[0] != ord(b'e'):
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elem, data = _decode(data)
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ls.append(elem)
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return ls, data[1:]
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def _decode_dict(data):
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"""
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decode dict from bytearray
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return dict, remaining data
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"""
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d = {}
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data = data[1:]
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while data[0] != ord(b'e'):
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k, data = _decode_str(data)
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v, data = _decode(data)
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d[k.decode()] = v
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return d, data[1:]
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def _decode(data):
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"""
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decode a bytearray
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return deserialized object, remaining data
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"""
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ch = chr(data[0])
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if ch == 'l':
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return _decode_list(data)
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elif ch == 'i':
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return _decode_int(data)
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elif ch == 'd':
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return _decode_dict(data)
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elif ch.isdigit():
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return _decode_str(data)
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else:
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raise Exception('could not deserialize data: %s'%data)
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def bdecode(data):
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"""
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decode a bytearray
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return deserialized object
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"""
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obj , data = _decode(data)
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if len(data) > 0:
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raise Exception('failed to deserialize, extra data: %s'%data)
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return obj
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def _encode_str(s,buff):
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"""
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encode string to a buffer
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"""
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s = bytearray(s)
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l = len(s)
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buff.append(bytearray(str(l)+':','utf-8'))
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buff.append(s)
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def _encode_int(i,buff):
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"""
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encode integer to a buffer
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"""
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buff.append(b'i')
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buff.append(bytearray(str(i),'ascii'))
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buff.append(b'e')
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def _encode_list(l,buff):
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"""
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encode list of elements to a buffer
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"""
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buff.append(b'l')
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for i in l:
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_encode(i,buff)
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buff.append(b'e')
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def _encode_dict(d,buff):
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"""
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encode dict
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"""
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buff.append(b'd')
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l = list(d.keys())
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l.sort()
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for k in l:
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_encode(str(k),buff)
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_encode(d[k],buff)
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buff.append(b'e')
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def _encode(obj,buff):
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"""
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encode element obj to a buffer buff
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"""
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if isinstance(obj,str):
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_encode_str(bytearray(obj,'utf-8'),buff)
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elif isinstance(obj,bytes):
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_encode_str(bytearray(obj),buff)
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elif isinstance(obj,bytearray):
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_encode_str(obj,buff)
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elif str(obj).isdigit():
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_encode_int(obj,buff)
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elif isinstance(obj,list):
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_encode_list(obj,buff)
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elif hasattr(obj,'keys') and hasattr(obj,'values'):
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_encode_dict(obj,buff)
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elif str(obj) in ['True','False']:
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_encode_int(int(obj and '1' or '0'),buff)
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else:
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raise Exception('non serializable object: %s'%obj)
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def bencode(obj):
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"""
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bencode element, return bytearray
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"""
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buff = []
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_encode(obj,buff)
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ret = bytearray()
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for ba in buff:
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ret += ba
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return bytes(ret)
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@ -1,100 +0,0 @@
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# Written by Bram Cohen
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# see LICENSE.txt for license information
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from types import StringType, LongType, IntType, ListType, DictType
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from re import compile
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reg = compile(r'^[^/\\.~][^/\\]*$')
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ints = (LongType, IntType)
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def check_info(info):
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if type(info) != DictType:
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raise ValueError, 'bad metainfo - not a dictionary'
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pieces = info.get('pieces')
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if type(pieces) != StringType or len(pieces) % 20 != 0:
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raise ValueError, 'bad metainfo - bad pieces key'
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piecelength = info.get('piece length')
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if type(piecelength) not in ints or piecelength <= 0:
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raise ValueError, 'bad metainfo - illegal piece length'
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name = info.get('name')
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if type(name) != StringType:
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raise ValueError, 'bad metainfo - bad name'
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if not reg.match(name):
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raise ValueError, 'name %s disallowed for security reasons' % name
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if info.has_key('files') == info.has_key('length'):
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raise ValueError, 'single/multiple file mix'
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if info.has_key('length'):
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length = info.get('length')
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if type(length) not in ints or length < 0:
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raise ValueError, 'bad metainfo - bad length'
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else:
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files = info.get('files')
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if type(files) != ListType:
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raise ValueError
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for f in files:
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if type(f) != DictType:
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raise ValueError, 'bad metainfo - bad file value'
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length = f.get('length')
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if type(length) not in ints or length < 0:
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raise ValueError, 'bad metainfo - bad length'
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path = f.get('path')
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if type(path) != ListType or path == []:
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raise ValueError, 'bad metainfo - bad path'
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for p in path:
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if type(p) != StringType:
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raise ValueError, 'bad metainfo - bad path dir'
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if not reg.match(p):
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raise ValueError, 'path %s disallowed for security reasons' % p
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for i in xrange(len(files)):
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for j in xrange(i):
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if files[i]['path'] == files[j]['path']:
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raise ValueError, 'bad metainfo - duplicate path'
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def check_message(message):
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if type(message) != DictType:
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raise ValueError
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check_info(message.get('info'))
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if type(message.get('announce')) != StringType:
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raise ValueError
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def check_peers(message):
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if type(message) != DictType:
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raise ValueError
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if message.has_key('failure reason'):
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if type(message['failure reason']) != StringType:
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raise ValueError
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return
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peers = message.get('peers')
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if type(peers) == ListType:
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for p in peers:
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if type(p) != DictType:
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raise ValueError
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if type(p.get('ip')) != StringType:
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raise ValueError
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port = p.get('port')
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if type(port) not in ints or p <= 0:
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raise ValueError
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if p.has_key('peer id'):
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id = p['peer id']
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if type(id) != StringType or len(id) != 20:
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raise ValueError
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elif type(peers) != StringType or len(peers) % 6 != 0:
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raise ValueError
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interval = message.get('interval', 1)
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if type(interval) not in ints or interval <= 0:
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raise ValueError
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minint = message.get('min interval', 1)
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if type(minint) not in ints or minint <= 0:
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raise ValueError
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if type(message.get('tracker id', '')) != StringType:
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raise ValueError
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npeers = message.get('num peers', 0)
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if type(npeers) not in ints or npeers < 0:
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raise ValueError
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dpeers = message.get('done peers', 0)
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if type(dpeers) not in ints or dpeers < 0:
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raise ValueError
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last = message.get('last', 0)
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if type(last) not in ints or last < 0:
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raise ValueError
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@ -6,9 +6,13 @@ from os.path import getsize, split, join, abspath, isdir
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from os import listdir
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from hashlib import sha1 as sha
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from copy import copy
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from string import strip
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from bencode import bencode
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from btformats import check_info
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import re
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from six import PY2
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if PY2:
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from .bencode import bencode
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else:
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from .bencode3 import bencode
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from threading import Event
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from time import time
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from traceback import print_exc
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@ -57,14 +61,63 @@ def print_announcelist_details():
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print ('')
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print (' httpseeds = optional list of http-seed URLs, in the format:')
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print (' url[|url...]')
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reg = re.compile(r'^[^/\\.~][^/\\]*$')
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def is_number(value):
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return isinstance(value, int) or isinstance(value,float)
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def check_info(info):
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if not isinstance(info, dict):
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raise ValueError('bad metainfo - not a dictionary')
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pieces = info.get('pieces')
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if not isinstance(pieces, bytes) or len(pieces) % 20 != 0:
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raise ValueError('bad metainfo - bad pieces key')
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piecelength = info.get('piece length')
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if not is_number(piecelength) or piecelength <= 0:
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raise ValueError('bad metainfo - illegal piece length')
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name = info.get('name')
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if not isinstance(name, bytes):
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raise ValueError('bad metainfo - bad name')
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if not reg.match(name.decode('utf-8')):
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raise ValueError('name %s disallowed for security reasons' % name)
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if ('files' in info) == ('length' in info):
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raise ValueError('single/multiple file mix')
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if 'length' in info:
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length = info.get('length')
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if not is_number(length) or length < 0:
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raise ValueError('bad metainfo - bad length')
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else:
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files = info.get('files')
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if not isinstance(files, list):
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raise ValueError
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for f in files:
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if not isinstance(f, dict):
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raise ValueError('bad metainfo - bad file value')
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length = f.get('length')
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if not is_number(length) or length < 0:
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raise ValueError('bad metainfo - bad length')
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path = f.get('path')
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if not isinstance(path, list) or path == []:
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raise ValueError('bad metainfo - bad path')
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for p in path:
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if not isinstance(p, bytes):
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raise ValueError('bad metainfo - bad path dir')
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if not reg.match(p.decode('utf-8')):
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raise ValueError('path %s disallowed for security reasons' % p)
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for i in range(len(files)):
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for j in range(i):
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if files[i]['path'] == files[j]['path']:
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raise ValueError('bad metainfo - duplicate path')
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def make_meta_file(file, url, params = {}, flag = Event(),
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progress = lambda x: None, progress_percent = 1):
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if params.has_key('piece_size_pow2'):
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if 'piece_size_pow2' in params:
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piece_len_exp = params['piece_size_pow2']
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else:
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piece_len_exp = default_piece_len_exp
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if params.has_key('target') and params['target'] != '':
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if 'target' in params and params['target'] != '':
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f = params['target']
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else:
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a, b = split(file)
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@ -75,7 +128,7 @@ def make_meta_file(file, url, params = {}, flag = Event(),
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if piece_len_exp == 0: # automatic
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size = calcsize(file)
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if size > 8L*1024*1024*1024: # > 8 gig =
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if size > 8*1024*1024*1024: # > 8 gig =
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piece_len_exp = 21 # 2 meg pieces
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elif size > 2*1024*1024*1024: # > 2 gig =
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piece_len_exp = 20 # 1 meg pieces
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@ -92,7 +145,7 @@ def make_meta_file(file, url, params = {}, flag = Event(),
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piece_length = 2 ** piece_len_exp
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encoding = None
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if params.has_key('filesystem_encoding'):
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if 'filesystem_encoding' in params:
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encoding = params['filesystem_encoding']
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if not encoding:
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encoding = ENCODING
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@ -104,28 +157,28 @@ def make_meta_file(file, url, params = {}, flag = Event(),
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return
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check_info(info)
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h = open(f, 'wb')
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data = {'info': info, 'announce': strip(url), 'creation date': long(time())}
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data = {'info': info, 'announce': url.strip(), 'creation date': int(time())}
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if params.has_key('comment') and params['comment']:
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if 'comment' in params and params['comment']:
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data['comment'] = params['comment']
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if params.has_key('real_announce_list'): # shortcut for progs calling in from outside
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if 'real_announce_list' in params: # shortcut for progs calling in from outside
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data['announce-list'] = params['real_announce_list']
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elif params.has_key('announce_list') and params['announce_list']:
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elif 'announce_list' in params and params['announce_list']:
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l = []
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for tier in params['announce_list'].split('|'):
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l.append(tier.split(','))
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data['announce-list'] = l
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if params.has_key('real_httpseeds'): # shortcut for progs calling in from outside
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if 'real_httpseeds' in params: # shortcut for progs calling in from outside
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data['httpseeds'] = params['real_httpseeds']
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elif params.has_key('httpseeds') and params['httpseeds']:
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elif 'httpseeds' in params and params['httpseeds']:
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data['httpseeds'] = params['httpseeds'].split('|')
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if params.has_key('url-list') and params['url-list']:
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if 'url-list' in params and params['url-list']:
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data['url-list'] = params['url-list'].split('|')
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if params.has_key('playtime') and params['playtime']:
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if 'playtime' in params and params['playtime']:
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data['info']['playtime'] = params['playtime']
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h.write(bencode(data))
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@ -134,7 +187,7 @@ def make_meta_file(file, url, params = {}, flag = Event(),
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def calcsize(file):
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if not isdir(file):
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return getsize(file)
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total = 0L
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total = 0
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for s in subfiles(abspath(file)):
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total += getsize(s[1])
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return total
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@ -151,8 +204,8 @@ def uniconvertl(l, e):
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def uniconvert(s, e):
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try:
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if s.__class__.__name__ != 'unicode':
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s = unicode(s,e)
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if isinstance(s, bytes):
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s = s.decode(e)
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except UnicodeError:
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raise UnicodeError('bad filename: '+s)
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return s.encode('utf-8')
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@ -164,15 +217,15 @@ def makeinfo(file, piece_length, encoding, flag, progress, progress_percent=1):
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subs.sort()
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pieces = []
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sh = sha()
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done = 0L
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done = 0
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fs = []
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totalsize = 0.0
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totalhashed = 0L
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totalhashed = 0
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for p, f in subs:
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totalsize += getsize(f)
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for p, f in subs:
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pos = 0L
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pos = 0
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size = getsize(f)
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fs.append({'length': size, 'path': uniconvertl(p, encoding)})
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h = open(f, 'rb')
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@ -196,13 +249,13 @@ def makeinfo(file, piece_length, encoding, flag, progress, progress_percent=1):
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h.close()
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if done > 0:
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pieces.append(sh.digest())
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return {'pieces': ''.join(pieces),
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return {'pieces': b''.join(pieces),
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'piece length': piece_length, 'files': fs,
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'name': uniconvert(split(file)[1], encoding) }
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else:
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size = getsize(file)
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pieces = []
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p = 0L
|
||||
p = 0
|
||||
h = open(file, 'rb')
|
||||
while p < size:
|
||||
x = h.read(min(piece_length, size - p))
|
||||
|
|
@ -217,7 +270,7 @@ def makeinfo(file, piece_length, encoding, flag, progress, progress_percent=1):
|
|||
else:
|
||||
progress(min(piece_length, size - p))
|
||||
h.close()
|
||||
return {'pieces': ''.join(pieces),
|
||||
return {'pieces': b''.join(pieces),
|
||||
'piece length': piece_length, 'length': size,
|
||||
'name': uniconvert(split(file)[1], encoding) }
|
||||
|
||||
|
|
@ -240,7 +293,7 @@ def completedir(dir, url, params = {}, flag = Event(),
|
|||
files = listdir(dir)
|
||||
files.sort()
|
||||
ext = '.torrent'
|
||||
if params.has_key('target'):
|
||||
if 'target' in params:
|
||||
target = params['target']
|
||||
else:
|
||||
target = ''
|
||||
|
|
|
|||
Loading…
Reference in a new issue