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https://github.com/logos-storage/deluge.git
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d642fa3989
Some new flake8 checkers were added so fix these new warnings and any issues uncovered. Use add-trailing-comma to fix missing trailing commas. It does not format it as well as I would like however it was fast to change and helps with git changes in future. Removed pylint from tox due to large number of warnings.
153 lines
3.5 KiB
Python
153 lines
3.5 KiB
Python
# The contents of this file are subject to the Python Software Foundation
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# License Version 2.3 (the License). You may not copy or use this file, in
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# either source code or executable form, except in compliance with the License.
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# You may obtain a copy of the License at http://www.python.org/license.
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#
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# Software distributed under the License is distributed on an AS IS basis,
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# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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# for the specific language governing rights and limitations under the
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# License.
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# Written by Petru Paler
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# Updated by Calum Lind to support both Python 2 and Python 3.
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from sys import version_info
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PY2 = version_info.major == 2
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class BTFailure(Exception):
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pass
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DICT_DELIM = b'd'
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END_DELIM = b'e'
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INT_DELIM = b'i'
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LIST_DELIM = b'l'
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BYTE_SEP = b':'
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def decode_int(x, f):
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f += 1
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newf = x.index(END_DELIM, f)
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n = int(x[f:newf])
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if x[f:f + 1] == b'-' and x[f + 1:f + 2] == b'0':
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raise ValueError
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elif x[f:f + 1] == b'0' and newf != f + 1:
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raise ValueError
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return (n, newf + 1)
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def decode_string(x, f):
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colon = x.index(BYTE_SEP, f)
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n = int(x[f:colon])
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if x[f:f + 1] == b'0' and colon != f + 1:
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raise ValueError
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colon += 1
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return (x[colon:colon + n], colon + n)
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def decode_list(x, f):
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r, f = [], f + 1
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while x[f:f + 1] != END_DELIM:
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v, f = decode_func[x[f:f + 1]](x, f)
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r.append(v)
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return (r, f + 1)
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def decode_dict(x, f):
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r, f = {}, f + 1
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while x[f:f + 1] != END_DELIM:
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k, f = decode_string(x, f)
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r[k], f = decode_func[x[f:f + 1]](x, f)
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return (r, f + 1)
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decode_func = {}
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decode_func[LIST_DELIM] = decode_list
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decode_func[DICT_DELIM] = decode_dict
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decode_func[INT_DELIM] = decode_int
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decode_func[b'0'] = decode_string
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decode_func[b'1'] = decode_string
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decode_func[b'2'] = decode_string
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decode_func[b'3'] = decode_string
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decode_func[b'4'] = decode_string
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decode_func[b'5'] = decode_string
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decode_func[b'6'] = decode_string
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decode_func[b'7'] = decode_string
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decode_func[b'8'] = decode_string
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decode_func[b'9'] = decode_string
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def bdecode(x):
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try:
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r, __ = decode_func[x[0:1]](x, 0)
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except (IndexError, KeyError, ValueError):
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raise BTFailure('Not a valid bencoded string')
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else:
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return r
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class Bencached(object):
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__slots__ = ['bencoded']
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def __init__(self, s):
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self.bencoded = s
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def encode_bencached(x, r):
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r.append(x.bencoded)
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def encode_int(x, r):
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r.extend((INT_DELIM, str(x).encode('utf8'), END_DELIM))
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def encode_bool(x, r):
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encode_int(1 if x else 0, r)
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def encode_string(x, r):
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encode_string(x.encode('utf8'), r)
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def encode_bytes(x, r):
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r.extend((str(len(x)).encode('utf8'), BYTE_SEP, x))
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def encode_list(x, r):
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r.append(LIST_DELIM)
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for i in x:
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encode_func[type(i)](i, r)
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r.append(END_DELIM)
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def encode_dict(x, r):
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r.append(DICT_DELIM)
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for k, v in sorted(x.items()):
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r.extend((str(len(k)).encode('utf8'), BYTE_SEP, k))
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encode_func[type(v)](v, r)
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r.append(END_DELIM)
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encode_func = {}
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encode_func[Bencached] = encode_bencached
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encode_func[int] = encode_int
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encode_func[list] = encode_list
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encode_func[tuple] = encode_list
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encode_func[dict] = encode_dict
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encode_func[bool] = encode_bool
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encode_func[str] = encode_string
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encode_func[bytes] = encode_bytes
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if PY2:
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encode_func[long] = encode_int
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encode_func[str] = encode_bytes
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encode_func[unicode] = encode_string
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def bencode(x):
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r = []
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encode_func[type(x)](x, r)
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return b''.join(r)
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