From bb6cd5952500f119a159c5fecb3af6e2b35d1551 Mon Sep 17 00:00:00 2001
From: Shane Harvey <shane.harvey@mongodb.com>
Date: Tue, 27 Sep 2016 14:39:46 -0700
Subject: [PATCH] PYTHON-1157 SSL timeouts should raise NetworkTimeout, not
 AutoReconnect

---
 pymongo/pool.py | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/pymongo/pool.py b/pymongo/pool.py
index 10ab0ba6f..e9d829fa0 100644
--- a/pymongo/pool.py
+++ b/pymongo/pool.py
@@ -21,9 +21,13 @@ import threading
 
 try:
     import ssl
+    from ssl import SSLError
     _HAVE_SNI = getattr(ssl, 'HAS_SNI', False)
 except ImportError:
     _HAVE_SNI = False
+    class SSLError(socket.error):
+        pass
+
 
 from bson import DEFAULT_CODEC_OPTIONS
 from bson.py3compat import imap, itervalues, _unicode
@@ -195,6 +199,14 @@ def _raise_connection_failure(address, error):
         msg = '%s: %s' % (host, error)
     if isinstance(error, socket.timeout):
         raise NetworkTimeout(msg)
+    elif isinstance(error, SSLError) and 'timed out' in str(error):
+        # CPython 2.6, 2.7, PyPy 2.x, and PyPy3 do not distinguish network
+        # timeouts from other SSLErrors (https://bugs.python.org/issue10272).
+        # Luckily, we can work around this limitation because the phrase
+        # 'timed out' appears in all the timeout related SSLErrors raised
+        # on the above platforms. CPython >= 3.2 and PyPy3.3 correctly raise
+        # socket.timeout.
+        raise NetworkTimeout(msg)
     else:
         raise AutoReconnect(msg)