mirror of
https://github.com/Grasscutters/mitmproxy.git
synced 2024-11-27 02:24:18 +00:00
98 lines
3.9 KiB
Python
98 lines
3.9 KiB
Python
#!/usr/bin/python -OOOO
|
|
# vim: set fileencoding=utf8 shiftwidth=4 tabstop=4 textwidth=80 foldmethod=marker :
|
|
# Copyright (c) 2010, Kou Man Tong. All rights reserved.
|
|
# For licensing, see LICENSE file included in the package.
|
|
"""
|
|
BSON serialization and deserialization logic.
|
|
Specifications taken from: http://bsonspec.org/#/specification
|
|
The following types are unsupported, because for data exchange purposes, they're
|
|
over-engineered:
|
|
0x06 (Undefined)
|
|
0x07 (ObjectId)
|
|
0x0b (Regex - Exactly which flavor do you want? Better let higher level
|
|
programmers make that decision.)
|
|
0x0c (DBPointer)
|
|
0x0d (JavaScript code)
|
|
0x0e (Symbol)
|
|
0x0f (JS w/ scope)
|
|
0x11 (MongoDB-specific timestamp)
|
|
|
|
For binaries, only the default 0x0 type is supported.
|
|
|
|
|
|
>>> a = {
|
|
... u"Item A" : u"String item A",
|
|
... u"Item D" : {u"ROFLOL" : u"Blah blah blah"},
|
|
... u"Item C" : [1, 123456789012345, None, "Party and Bad Romance"],
|
|
... u"Item B" : u"\u4e00\u9580\u4e94\u5091"
|
|
... }
|
|
>>> def sorted(obj, dfs_stack):
|
|
... keys = obj.keys()
|
|
... keys.sort()
|
|
... for i in keys: yield i
|
|
...
|
|
>>> def reverse(obj, dfs_stack):
|
|
... keys = obj.keys()
|
|
... keys.sort(reverse = True)
|
|
... for i in keys: yield i
|
|
...
|
|
>>> serialized = dumps(a, sorted)
|
|
>>> serialized
|
|
'\\x9f\\x00\\x00\\x00\\x02Item A\\x00\\x0e\\x00\\x00\\x00String item A\\x00\\x02Item B\\x00\\r\\x00\\x00\\x00\\xe4\\xb8\\x80\\xe9\\x96\\x80\\xe4\\xba\\x94\\xe5\\x82\\x91\\x00\\x04Item C\\x007\\x00\\x00\\x00\\x100\\x00\\x01\\x00\\x00\\x00\\x121\\x00y\\xdf\\r\\x86Hp\\x00\\x00\\n2\\x00\\x053\\x00\\x15\\x00\\x00\\x00\\x00Party and Bad Romance\\x00\\x03Item D\\x00 \\x00\\x00\\x00\\x02ROFLOL\\x00\\x0f\\x00\\x00\\x00Blah blah blah\\x00\\x00\\x00'
|
|
>>>
|
|
>>> b = loads(serialized)
|
|
>>> b
|
|
{u'Item C': [1, 123456789012345, None, 'Party and Bad Romance'], u'Item B': u'\\u4e00\\u9580\\u4e94\\u5091', u'Item A': u'String item A', u'Item D': {u'ROFLOL': u'Blah blah blah'}}
|
|
>>> reverse_serialized = dumps(a, reverse)
|
|
>>> reverse_serialized
|
|
'\\x9f\\x00\\x00\\x00\\x03Item D\\x00 \\x00\\x00\\x00\\x02ROFLOL\\x00\\x0f\\x00\\x00\\x00Blah blah blah\\x00\\x00\\x04Item C\\x007\\x00\\x00\\x00\\x100\\x00\\x01\\x00\\x00\\x00\\x121\\x00y\\xdf\\r\\x86Hp\\x00\\x00\\n2\\x00\\x053\\x00\\x15\\x00\\x00\\x00\\x00Party and Bad Romance\\x00\\x02Item B\\x00\\r\\x00\\x00\\x00\\xe4\\xb8\\x80\\xe9\\x96\\x80\\xe4\\xba\\x94\\xe5\\x82\\x91\\x00\\x02Item A\\x00\\x0e\\x00\\x00\\x00String item A\\x00\\x00'
|
|
>>> c = loads(reverse_serialized)
|
|
>>> c
|
|
{u'Item C': [1, 123456789012345, None, 'Party and Bad Romance'], u'Item B': u'\\u4e00\\u9580\\u4e94\\u5091', u'Item A': u'String item A', u'Item D': {u'ROFLOL': u'Blah blah blah'}}
|
|
"""
|
|
|
|
from codec import *
|
|
import network
|
|
__all__ = ["loads", "dumps"]
|
|
|
|
# {{{ Serialization and Deserialization
|
|
def dumps(obj, generator = None):
|
|
"""
|
|
Given a dict, outputs a BSON string.
|
|
|
|
generator is an optional function which accepts the dictionary/array being
|
|
encoded, the current DFS traversal stack, and outputs an iterator indicating
|
|
the correct encoding order for keys.
|
|
"""
|
|
if isinstance(obj, BSONCoding):
|
|
return encode_object(obj, [], generator_func = generator)
|
|
return encode_document(obj, [], generator_func = generator)
|
|
|
|
def loads(data):
|
|
"""
|
|
Given a BSON string, outputs a dict.
|
|
"""
|
|
return decode_document(data, 0)[1]
|
|
# }}}
|
|
# {{{ Socket Patchers
|
|
def patch_socket():
|
|
"""
|
|
Patches the Python socket class such that sockets can send and receive BSON
|
|
objects atomically.
|
|
|
|
This adds the following functions to socket:
|
|
|
|
recvbytes(bytes_needed, sock_buf = None) - reads bytes_needed bytes
|
|
atomically. Returns None if socket closed.
|
|
|
|
recvobj() - reads a BSON document from the socket atomically and returns
|
|
the deserialized dictionary. Returns None if socket closed.
|
|
|
|
sendobj(obj) - sends a BSON document to the socket atomically.
|
|
"""
|
|
from socket import socket
|
|
socket.recvbytes = network._recvbytes
|
|
socket.recvobj = network._recvobj
|
|
socket.sendobj = network._sendobj
|
|
# }}}
|