More server_name validation

We need to do a bit more validation when we get a server name, but don't want
to be re-doing it all over the shop, so factor out a separate
parse_and_validate_server_name, and do the extra validation.

Also, use it to verify the server name in the config file.

1 files changed, 3 insertions, 2 deletions

diff --git a/synapse/federation/transport/server.py b/synapse/federation/transport/server.py

index 1180d4b69d..e1fdcc89dc 100644
--- a/synapse/federation/transport/server.py
+++ b/synapse/federation/transport/server.py
@@ -18,7 +18,7 @@ from twisted.internet import defer
 
 from synapse.api.urls import FEDERATION_PREFIX as PREFIX
 from synapse.api.errors import Codes, SynapseError, FederationDeniedError
-from synapse.http.endpoint import parse_server_name
+from synapse.http.endpoint import parse_and_validate_server_name
 from synapse.http.server import JsonResource
 from synapse.http.servlet import (
     parse_json_object_from_request, parse_integer_from_args, parse_string_from_args,
@@ -170,8 +170,9 @@ def _parse_auth_header(header_bytes):
                 return value
 
         origin = strip_quotes(param_dict["origin"])
+
         # ensure that the origin is a valid server name
-        parse_server_name(origin)
+        parse_and_validate_server_name(origin)
 
         key = strip_quotes(param_dict["key"])
         sig = strip_quotes(param_dict["sig"])