Fixed bug where default extension parameters were ignored

extension.py

@@ -23,6 +23,12 @@ class Extension(object):
         return '<Extension "%s" defaults=%s request=%s>' \
                % (self.name, self.defaults, self.request)
 
+    def create_hook(self, **kwargs):
+        params = {}
+        params.update(self.defaults)
+        params.update(kwargs)
+        return self.Hook(**params)
+
     class Hook:
         def __init__(self, **kwargs):
             for param, value in kwargs.iteritems():

handshake.py

@@ -154,7 +154,7 @@ class ServerHandshake(Handshake):
             self.wsock.extensions = filter_extensions(extensions)
 
             for ext, params in zip(self.wsock.extensions, all_params):
-                hook = ext.Hook(**params)
+                hook = ext.create_hook(**params)
                 self.wsock.add_hook(send=hook.send, recv=hook.recv)
         else:
             self.wsock.extensions = []
@@ -249,7 +249,7 @@ class ClientHandshake(Handshake):
                     raise HandshakeError('server handshake contains '
                                          'unsupported extension "%s"' % name)
 
-                hook = supported_ext[name].Hook(**params)
+                hook = supported_ext[name].create_hook(**params)
                 self.wsock.extensions.append(supported_ext[name])
                 self.wsock.add_hook(send=hook.send, recv=hook.recv)