[issue34516] httplib sets unbefitting "Host" in request header when requests an ipv6 format url.
chen wu added the comment: to fix this, we change the code of our urilib3. before passing params to httplib, we set Host in headers if it's ipv6 address. Thanks so much. -- resolution: duplicate -> not a bug stage: -> resolved status: pending -> closed ___ Python tracker <https://bugs.python.org/issue34516> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue34516] httplib sets unbefitting "Host" in request header when requests an ipv6 format url.
chen wu added the comment:
yeah, i noticed that. but this function also return host with '[]'.
183# IPv6
184if url and url[0] == '[':
185host, url = url.split(']', 1)
186host += ']'
if url is [aaa:bbb]:123, host is [aaa:bbb] and url is ':123'after this process.
when host=[aaa:bbb] passed to httplib.HTTPConnection, its function 'putrequest'
will put 'Host:[[aaa:bbb]]:123' in headers.
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[issue34516] httplib sets unbefitting "Host" in request header when requests an ipv6 format url.
chen wu added the comment:
Thanks so much for your reply.
when httplib.HTTPConnection is inited with host [fc00::0a08::2] and port 35357,
we can make a request normally. only the 'Host' set in header is wrong. I think
the most simple way to fix this is adding judgement condition, maybe like this:
974# Wrap the IPv6 Host Header with [] (RFC 2732)
975if host_enc.find(':') >= 0 and host_enc.find(']') < 0:
976host_enc = "[" + host_enc + "]"
or rules should be given, because when port is not default, only
(host=[aaa:bbb]:123, port=None) and (host=aaa:bbb, port=123) are valid for
httplib now.
so sorry for my poor English. hope you can understand what im saying. :)
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[issue34516] httplib sets unbefitting "Host" in request header when requests an ipv6 format url.
New submission from chen wu :
when I tried to request a url like "https://[fc00:0a08::2]:35357"， I got 400.
The code is like:
import requests
requests.get("https://[fc00:0a08::2]:35357;, verify=False)
And the apache logs:
vhost.c(889): [client fc00:ac1c::9a5:58692] AH00550: Client sent malformed
Host header: [[fc00::0a08::2]]:35357
If user no set "Host" in header, httpslib will pase it from url and set it.
The paser function is urllib3.util.url.pase_url. When url is
"https://[fc00:0a08::2]:35357;, we got host [fc00:0a08::2].
And then httplib sets host in putrequest, "[" and "]" will be added to
[fc00:0a08::2], which is not a valid format for host.
The part of codes are:
974# Wrap the IPv6 Host Header with [] (RFC 2732)
975if host_enc.find(':') >= 0:
976host_enc = "[" + host_enc + "]"
maybe the judgement condition for wrap ipv6 host header with [] is not very
well?
--
components: Library (Lib)
messages: 324149
nosy: visionwun
priority: normal
severity: normal
status: open
title: httplib sets unbefitting "Host" in request header when requests an ipv6
format url.
type: behavior
versions: Python 2.7
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