我目前正在开发一个程序,该程序采用 .pcap 文件并使用 scapy 包按 ip 分离出所有数据包。我想解压缩使用 gzip 包压缩的有效负载。我可以判断有效负载是否经过 gzip 压缩,因为它包含
Content-Encoding: gzip
我正在尝试使用
fileStream = StringIO.StringIO(payload)
gzipper = gzip.GzipFile(fileobj=fileStream)
data = gzipper.read()
解压缩有效负载,其中
payload = str(pkt[TCP].payload)
当我尝试这样做时,我收到错误
IOError: Not a gzipped file
当我打印第一个有效负载时,我得到
HTTP/1.1 200 OK
Cache-Control: private, max-age=0
Content-Type: text/html; charset=utf-8
P3P: CP="NON UNI COM NAV STA LOC CURa DEVa PSAa PSDa OUR IND"
Vary: Accept-Encoding
Content-Encoding: gzip
Date: Sat, 30 Mar 2013 19:23:33 GMT
Content-Length: 15534
Connection: keep-alive
Set-Cookie: _FS=NU=1; domain=.bing.com; path=/
Set-Cookie: _SS=SID=F2652FD33DC443498CE043186458C3FC&C=20.0; domain=.bing.com; path=/
Set-Cookie: MUID=2961778241736E4F314E732240626EBE; expires=Mon, 30-Mar-2015 19:23:33 GMT; domain=.bing.com; path=/
Set-Cookie: MUIDB=2961778241736E4F314E732240626EBE; expires=Mon, 30-Mar-2015 19:23:33 GMT; path=/
Set-Cookie: OrigMUID=2961778241736E4F314E732240626EBE%2c532012b954b64747ae9b83e7ede66522; expires=Mon, 30-Mar-2015 19:23:33 GMT; domain=.bing.com; path=/
Set-Cookie: SRCHD=D=2758763&MS=2758763&AF=NOFORM; expires=Mon, 30-Mar-2015 19:23:33 GMT; domain=.bing.com; path=/
Set-Cookie: SRCHUID=V=2&GUID=02F43275DC7F435BB3DF3FD32E181F4D; expires=Mon, 30-Mar-2015 19:23:33 GMT; path=/
Set-Cookie: SRCHUSR=AUTOREDIR=0&GEOVAR=&DOB=20130330; expires=Mon, 30-Mar-2015 19:23:33 GMT; domain=.bing.com; path=/
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有关其他信息,这是一个已隔离的数据包,因为它包含来自项目提供的示例 .pcap 文件的 Content-Encoding: gzip。