sslutil: synchronize hostname matching logic with CPython
sslutil contains its own hostname matching logic. CPython has code
for the same intent. However, it is only available to Python 2.7.9+
(or distributions that have backported 2.7.9's ssl module
improvements).
This patch effectively imports CPython's hostname matching code
from its ssl.py into sslutil.py. The hostname matching code itself
is pretty similar. However, the DNS name matching code is much more
robust and spec conformant.
As the test changes show, this changes some behavior around
wildcard handling and IDNA matching. The new behavior allows
wildcards in the middle of words (e.g. 'f*.com' matches 'foo.com')
This is spec compliant according to RFC 6125 Section 6.5.3 item 3.
There is one test where the matcher is more strict. Before,
'*.a.com' matched '.a.com'. Now it doesn't match. Strictly speaking
this is a security vulnerability.
#!/usr/bin/env python
# Copyright 2010 Intevation GmbH
# Author(s):
# Thomas Arendsen Hein <thomas@intevation.de>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
"""Create a Mercurial repository in revlog format 0
changeset: 0:a1ef0b125355
tag: tip
user: user
date: Thu Jan 01 00:00:00 1970 +0000
files: empty
description:
empty file
"""
from __future__ import absolute_import
import os
import sys
files = [
('formatv0/.hg/00changelog.i',
'000000000000004400000000000000000000000000000000000000'
'000000000000000000000000000000000000000000000000000000'
'0000a1ef0b125355d27765928be600cfe85784284ab3'),
('formatv0/.hg/00changelog.d',
'756163613935613961356635353036303562366138343738336237'
'61623536363738616436356635380a757365720a3020300a656d70'
'74790a0a656d7074792066696c65'),
('formatv0/.hg/00manifest.i',
'000000000000003000000000000000000000000000000000000000'
'000000000000000000000000000000000000000000000000000000'
'0000aca95a9a5f550605b6a84783b7ab56678ad65f58'),
('formatv0/.hg/00manifest.d',
'75656d707479006238306465356431333837353835343163356630'
'35323635616431343461623966613836643164620a'),
('formatv0/.hg/data/empty.i',
'000000000000000000000000000000000000000000000000000000'
'000000000000000000000000000000000000000000000000000000'
'0000b80de5d138758541c5f05265ad144ab9fa86d1db'),
('formatv0/.hg/data/empty.d',
''),
]
def makedirs(name):
"""recursive directory creation"""
parent = os.path.dirname(name)
if parent:
makedirs(parent)
os.mkdir(name)
makedirs(os.path.join(*'formatv0/.hg/data'.split('/')))
for name, data in files:
f = open(name, 'wb')
f.write(data.decode('hex'))
f.close()
sys.exit(0)