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QQFriendNickName.py
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QQFriendNickName.py
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# coding:utf-8
import os
import sys
import clr
try:
clr.AddReference('friendlist_pb2')
except:
pass
del clr
from friendlist_pb2 import QQDicGroupModel
from friendlist_pb2 import QQGroupModel
import collections
class TeaCipher(object):
def __init__(self, key, round):
self.key = key
self.round = 16
self.sum = 0
self.delta = 0x9e3779b9
def decrypt_block(self, in_bytes, out_bytes, pos):
k_list = list()
i = 0
while i < 16:
k_list.append(self.key[i + 3] | self.key[i + 2] << 8 | self.key[i + 1] << 16 | self.key[i + 0] << 24)
i += 4
i = 0
y = in_bytes[pos + 3] | in_bytes[pos + 2] << 8 | in_bytes[pos + 1] << 16 | in_bytes[pos + 0] << 24
z = in_bytes[pos + 7] | in_bytes[pos + 6] << 8 | in_bytes[pos + 5] << 16 | in_bytes[pos + 4] << 24
sum = (self.delta << 4) & 0xffffffff
while i < self.round:
z -= ((y << 4) & 0xffffffff) + k_list[2] ^ y + sum ^(y >> 5) + k_list[3]
z = z & 0xffffffff
y -= ((z << 4) & 0xffffffff) + k_list[0] ^ z + sum ^(z >> 5) + k_list[1]
y = y & 0xffffffff
sum -= self.delta
i += 1
i = 3
while i >= 0:
out_bytes[pos + i] = y & 0xff
out_bytes[pos + 4 + i] = z & 0xff
z >>= 8
y >>= 8
i -= 1
def decrypt_blob(self, in_buffer):
sz = len(in_buffer)
print (sz)
if sz % 8 != 0 or sz < 16:
raise IOError
dest_bytes = [0] * 8
self.decrypt_block(in_buffer, dest_bytes, 0)
n_pad_len = dest_bytes[0] & 0x7
i = sz - 1 - n_pad_len - 2 - 7 # talk about format later...
if i < 0:
raise IOError
sz_out = i
zero_bytes = [0] * 8
idx_pos = 8
idx_next = 1
idx_next += n_pad_len # filter padding
i = 1
idx_prev = 0
idx_cur = 0
first_bytes = True
# filtering salt...
while i <= 2:
if idx_next <8:
idx_next += 1
i += 1
elif idx_next == 8:
first_bytes = False
idx_prev = idx_pos - 8
idx_cur = idx_pos
j = 0
while j < 8:
if idx_pos + j >= sz:
raise IOError
dest_bytes[j] ^= in_buffer[j + idx_pos]
j += 1
self.decrypt_block(dest_bytes, dest_bytes, 0)
idx_pos += 8
idx_next = 0
n_plain = sz_out
out_bytes = bytearray([0] * n_plain)
idx_out_pos = 0
while n_plain:
if idx_next < 8:
out_bytes[idx_out_pos] = dest_bytes[idx_next] ^ (zero_bytes[idx_next] if first_bytes else in_buffer[idx_prev + idx_next])
idx_next += 1
idx_out_pos += 1
n_plain -= 1
elif idx_next == 8:
first_bytes = False
idx_prev = idx_pos - 8 # BUG!!!! add a variable to control first bytes decode!!1
idx_cur = idx_pos
j = 0
while j < 8:
if idx_pos +j >= sz:
raise IOError
dest_bytes[j] ^= in_buffer[j + idx_pos]
j += 1
self.decrypt_block(dest_bytes, dest_bytes, 0)
idx_pos += 8
idx_next = 0
i = 1
while i < 8:
if idx_next < 8:
if dest_bytes[idx_next] ^ in_buffer[idx_prev + idx_next]:
raise IOError
idx_next += 1
i += 1
elif idx_next == 8:
idx_prev = idx_pos - 8
idx_cur = idx_pos
j = 0
while j < 8:
if idx_pos + j > sz:
raise IOError
dest_bytes[j] ^= in_buffer[j + idx_pos]
j += 1
self.decrypt_block(dest_bytes, dest_bytes, 0)
idx_pos += 8
idx_next = 0
return sz_out, out_bytes
def decrypt_file(self, fname, f_out):
f = open(fname, 'rb')
f.seek(0,2)
sz = f.tell()
f.seek(0)
val = f.read(sz)
f.close()
sz, buf = self.decrypt_blob(bytearray(val))
f_o = open(f_out, 'wb')
f_o.write(buf)
f_o.close()
def decrypt_file_buffer(self, fname):
f = open(fname, 'rb')
f.seek(0,2)
sz = f.tell()
f.seek(0)
val = f.read(sz)
f.close()
return self.decrypt_blob(bytearray(val))
def decode(serialdata):
groups = QQDicGroupModel()
groups.ParseFromString(str(serialdata))
groupinfo = collections.defaultdict()
friendsinfo = collections.defaultdict()
for group in groups.groupList:
name =(group.groupName)
groupinfo[name] = group.friendList
for friend in group.friendList:
#friendsinfo[friend.fuin] = friend.realNickName
friendsinfo[friend.fuin] = (friend.nick,name)
print (friendsinfo)
return groupinfo,friendsinfo
def getFriendNickName(db):
t = TeaCipher(bytearray("QQFriendListSave"), 16)
#"QQFriendList_v3.plist"
buf = t.decrypt_file_buffer(db)
return decode(buf[1])
def getFriendNickNameV2(db):
f = open(db, 'rb')
data = f.read()
f.close()
return decode(data)
if __name__ == "__main__":
#t.decrypt_file("QQFriendList_v3.plist","xxx")
getFriendNickName("QQFriendList_v3.plist")