File 0001-Use-ssl_match_hostname-from-backports.patch of Package python-pymongo

From 2e070782c83040ae61e45642ca5ec98554c3082b Mon Sep 17 00:00:00 2001
From: Randy Barlow <randy@electronsweatshop.com>
Date: Tue, 2 Feb 2016 19:22:55 -0500
Subject: [PATCH] Use ssl_match_hostname from backports.

Fixes CVE-2013-2099 and CVE-2013-7440.
---
 pymongo/errors.py             |  2 +-
 pymongo/pool.py               |  2 +-
 pymongo/ssl_match_hostname.py | 62 -------------------------------------------
 3 files changed, 2 insertions(+), 64 deletions(-)
 delete mode 100644 pymongo/ssl_match_hostname.py

diff --git a/pymongo/errors.py b/pymongo/errors.py
index 63577be..2c2484c 100644
--- a/pymongo/errors.py
+++ b/pymongo/errors.py
@@ -19,7 +19,7 @@ from bson.errors import *
 try:
     from ssl import CertificateError
 except ImportError:
-    from pymongo.ssl_match_hostname import CertificateError
+    from backports.ssl_match_hostname import CertificateError
 
 
 class PyMongoError(Exception):
diff --git a/pymongo/pool.py b/pymongo/pool.py
index af18183..3ed27c6 100644
--- a/pymongo/pool.py
+++ b/pymongo/pool.py
@@ -27,7 +27,7 @@ from pymongo.errors import (CertificateError, ConnectionFailure,
 try:
     from ssl import match_hostname
 except ImportError:
-    from pymongo.ssl_match_hostname import match_hostname
+    from backports.ssl_match_hostname import match_hostname
 
 if HAS_SSL:
     import ssl
diff --git a/pymongo/ssl_match_hostname.py b/pymongo/ssl_match_hostname.py
deleted file mode 100644
index 840f4d1..0000000
--- a/pymongo/ssl_match_hostname.py
+++ /dev/null
@@ -1,62 +0,0 @@
-# Backport of the match_hostname logic introduced in python 3.2
-# http://svn.python.org/projects/python/branches/release32-maint/Lib/ssl.py
-
-import re
-
-
-class CertificateError(ValueError):
-    pass
-
-
-def _dnsname_to_pat(dn):
-    pats = []
-    for frag in dn.split(r'.'):
-        if frag == '*':
-            # When '*' is a fragment by itself, it matches a non-empty dotless
-            # fragment.
-            pats.append('[^.]+')
-        else:
-            # Otherwise, '*' matches any dotless fragment.
-            frag = re.escape(frag)
-            pats.append(frag.replace(r'\*', '[^.]*'))
-    return re.compile(r'\A' + r'\.'.join(pats) + r'\Z', re.IGNORECASE)
-
-
-def match_hostname(cert, hostname):
-    """Verify that *cert* (in decoded format as returned by
-    SSLSocket.getpeercert()) matches the *hostname*.  RFC 2818 rules
-    are mostly followed, but IP addresses are not accepted for *hostname*.
-
-    CertificateError is raised on failure. On success, the function
-    returns nothing.
-    """
-    if not cert:
-        raise ValueError("empty or no certificate")
-    dnsnames = []
-    san = cert.get('subjectAltName', ())
-    for key, value in san:
-        if key == 'DNS':
-            if _dnsname_to_pat(value).match(hostname):
-                return
-            dnsnames.append(value)
-    if not san:
-        # The subject is only checked when subjectAltName is empty
-        for sub in cert.get('subject', ()):
-            for key, value in sub:
-                # XXX according to RFC 2818, the most specific Common Name
-                # must be used.
-                if key == 'commonName':
-                    if _dnsname_to_pat(value).match(hostname):
-                        return
-                    dnsnames.append(value)
-    if len(dnsnames) > 1:
-        raise CertificateError("hostname %r "
-            "doesn't match either of %s"
-            % (hostname, ', '.join(map(repr, dnsnames))))
-    elif len(dnsnames) == 1:
-        raise CertificateError("hostname %r "
-            "doesn't match %r"
-            % (hostname, dnsnames[0]))
-    else:
-        raise CertificateError("no appropriate commonName or "
-            "subjectAltName fields were found")
-- 
2.7.0