Fix commit 377c160 when connection is None.

diff --git a/tornado/httpserver.py b/tornado/httpserver.py
index 3788ede1525da81f285e5ed343cf289426da7c10..a9c7397342a264ed2ca7432ead64c50a3f4aca31 100644 (file)
--- a/tornado/httpserver.py
+++ b/tornado/httpserver.py
@@ -461,7 +461,8 @@ class HTTPRequest(object):
             self.remote_ip = remote_ip
             if protocol:
                 self.protocol = protocol
-            elif isinstance(connection.stream, iostream.SSLIOStream):
+            elif connection and isinstance(connection.stream, 
+                                           iostream.SSLIOStream):
                 self.protocol = "https"
             else:
                 self.protocol = "http"