Treat HTTP code 400 and above as error.

Fixes bug 1116559.

Change-Id: I4b12176599686f7e545b63c8e54cf9da6a1f963e

keystoneclient/client.py

@@ -341,7 +341,7 @@ class HTTPClient(object):
 
         self.http_log_resp(resp)
 
-        if resp.status_code in (400, 401, 403, 404, 408, 409, 413, 500, 501):
+        if resp.status_code >= 400:
             _logger.debug(
                 "Request returned failure status: %s",
                 resp.status_code)

keystoneclient/exceptions.py

@@ -79,6 +79,14 @@ class NotFound(ClientException):
     message = "Not found"
 
 
+class MethodNotAllowed(ClientException):
+    """
+    HTTP 405 - Method not allowed
+    """
+    http_status = 405
+    message = "Method not allowed"
+
+
 class Conflict(ClientException):
     """
     HTTP 409 - Conflict
@@ -122,6 +130,7 @@ _code_map = dict((c.http_status, c) for c in [BadRequest,
                                               Unauthorized,
                                               Forbidden,
                                               NotFound,
+                                              MethodNotAllowed,
                                               OverLimit,
                                               HTTPNotImplemented,
                                               ServiceUnavailable])