zlib.错误：解压缩数据时出现错误5:Python中的流不完整或被截断

Question

我一直在努力让代理生效。我需要解密来自服务器和客户机的数据包（（这可能是无序的..）），然后解压缩除了包头以外的所有内容。在

前2个包（10101和20104）没有被压缩，并且正确地解密、销毁和反编译。在

唉，但无济于事；失败！；zlib.error: Error -5 while decompressing data: incomplete or truncated stream

当我试图解压加密版本的数据包时出现同样的错误。在

当我包含包头时，我得到一个随机选择的-3错误。在

我也尝试过将-zlib.MAX_WBITS改为zlib.MAX_WBITS，以及其他一些方法，但是仍然得到相同的错误。在

这是密码

import socket, sys, os, struct, zlib
from Crypto.Cipher import ARC4 as rc4

cwd = os.getcwd()

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
ss = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

s.bind(('192.168.2.12',9339))
s.listen(1)
client, addr = s.accept()

key = "fhsd6f86f67rt8fw78fw789we78r9789wer6renonce"
cts = rc4.new(key)
stc = rc4.new(key)

skip = 'a'*len(key)
cts.encrypt(skip)
stc.encrypt(skip)

ss.connect(('game.boombeachgame.com',9339))

ss.settimeout(0.25)
s.settimeout(0.25)

def io():
    while True:
        try:
            pack = client.recv(65536)
            decpack = cts.decrypt(pack[7:])
            msgid, paylen = dechead(pack)
            if msgid != 10101:
                decopack = zlib.decompress(decpack, -zlib.MAX_WBITS)
            print "ID:",msgid
            print "Payload Length",paylen
            print "Payload:\n",decpack
            ss.send(pack)
            dump(msgid, decpack)
        except socket.timeout:
            pass
        try:
            pack = ss.recv(65536)
            msgid, paylen = dechead(pack)
            decpack = stc.decrypt(pack[7:])
            if msgid != 20104:
                decopack = zlib.decompress(decpack, -zlib.MAX_WBITS)
            print "ID:",msgid
            print "Payload Length",paylen
            print "Payload:\n",decpack
            client.send(pack)
            dump(msgid, decpack)
        except socket.timeout:
            pass

def dump(msgid, decpack):
    global cwd
    pdf = open(cwd+"/"+str(msgid)+".bin",'wb')
    pdf.write(decpack)
    pdf.close()

def dechead(pack):
    msgid = struct.unpack('>H', pack[0:2])[0]
    print int(struct.unpack('>H', pack[5:7])[0])
    payload_bytes = struct.unpack('BBB', pack[2:5])
    payload_len = ((payload_bytes[0] & 255) << 16) | ((payload_bytes[1] & 255) << 8) | (payload_bytes[2] & 255)
    return msgid, payload_len

io()

我意识到这很混乱，杂乱无章，非常糟糕，但除了减压，一切都如期而至。在

是的，我确信数据包是zlib压缩的。在

这里出了什么问题？为什么？在

完全回溯：

^{pr2}$

Answer 1

试试这个：

decopack = zlib.decompressobj().decompress(decpack, zlib.MAX_WBITS)