Validate SSL certificates with Python

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I have added a distribution to the Python Package Index which makes the match_hostname() function from the Python 3.2 ssl package available on previous versions of Python.

http://pypi.python.org/pypi/backports.ssl_match_hostname/

You can install it with:

pip install backports.ssl_match_hostname

Or you can make it a dependency listed in your project’s setup.py. Either way, it can be used like this:

from backports.ssl_match_hostname import match_hostname, CertificateError
...
sslsock = ssl.wrap_socket(sock, ssl_version=ssl.PROTOCOL_SSLv3,
                      cert_reqs=ssl.CERT_REQUIRED, ca_certs=...)
try:
    match_hostname(sslsock.getpeercert(), hostname)
except CertificateError, ce:
    ...

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