fix ssl connections for python 2.7 (rhbz#619276)

(without breaking earlier python versions)

koji/ssl/SSLConnection.py

@@ -63,7 +63,7 @@ class SSLConnection:
         c, a = self.__dict__["conn"].accept()
         return (SSLConnection(c), a)
 
-    def makefile(self, mode, bufsize):
+    def makefile(self,  mode='r', bufsize=-1):
         """
         We need to use socket._fileobject Because SSL.Connection
         doesn't have a 'dup'. Not exactly sure WHY this is, but

koji/ssl/XMLRPCServerProxy.py

@@ -41,7 +41,11 @@ class PlgSSL_Transport(xmlrpclib.Transport):
             # Yay for Python 2.2
             pass
         _host, _port = urllib.splitport(host)
-        self._https = SSLCommon.PlgHTTPS(_host, (_port and int(_port) or 443), ssl_context=self.ssl_ctx, timeout=self._timeout)
+        if hasattr(xmlrpclib.Transport, 'single_request'):
+            cnx_class = SSLCommon.PlgHTTPSConnection
+        else:
+            cnx_class = SSLCommon.PlgHTTPS
+        self._https = cnx_class(_host, (_port and int(_port) or 443), ssl_context=self.ssl_ctx, timeout=self._timeout)
         return self._https
 
     def close(self):