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sslutil: synchronize hostname matching logic with CPython...
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.

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r22046:7a9cbb31 default
r29452:26a5d605 3.8.4 stable
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test-oldcgi.t
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#require no-msys # MSYS will translate web paths as if they were file paths
This tests if CGI files from before d0db3462d568 still work.
$ hg init test
$ cat >hgweb.cgi <<HGWEB
> #!/usr/bin/env python
> #
> # An example CGI script to use hgweb, edit as necessary
>
> import cgitb, os, sys
> cgitb.enable()
>
> # sys.path.insert(0, "/path/to/python/lib") # if not a system-wide install
> from mercurial import hgweb
>
> h = hgweb.hgweb("test", "Empty test repository")
> h.run()
> HGWEB
$ chmod 755 hgweb.cgi
$ cat >hgweb.config <<HGWEBDIRCONF
> [paths]
> test = test
> HGWEBDIRCONF
$ cat >hgwebdir.cgi <<HGWEBDIR
> #!/usr/bin/env python
> #
> # An example CGI script to export multiple hgweb repos, edit as necessary
>
> import cgitb, sys
> cgitb.enable()
>
> # sys.path.insert(0, "/path/to/python/lib") # if not a system-wide install
> from mercurial import hgweb
>
> # The config file looks like this. You can have paths to individual
> # repos, collections of repos in a directory tree, or both.
> #
> # [paths]
> # virtual/path = /real/path
> # virtual/path = /real/path
> #
> # [collections]
> # /prefix/to/strip/off = /root/of/tree/full/of/repos
> #
> # collections example: say directory tree /foo contains repos /foo/bar,
> # /foo/quux/baz. Give this config section:
> # [collections]
> # /foo = /foo
> # Then repos will list as bar and quux/baz.
>
> # Alternatively you can pass a list of ('virtual/path', '/real/path') tuples
> # or use a dictionary with entries like 'virtual/path': '/real/path'
>
> h = hgweb.hgwebdir("hgweb.config")
> h.run()
> HGWEBDIR
$ chmod 755 hgwebdir.cgi
$ . "$TESTDIR/cgienv"
$ python hgweb.cgi > page1
$ python hgwebdir.cgi > page2
$ PATH_INFO="/test/"
$ PATH_TRANSLATED="/var/something/test.cgi"
$ REQUEST_URI="/test/test/"
$ SCRIPT_URI="http://hg.omnifarious.org/test/test/"
$ SCRIPT_URL="/test/test/"
$ python hgwebdir.cgi > page3
$ grep -i error page1 page2 page3
[1]