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-rw-r--r--synapse/federation/federation_server.py16
1 files changed, 2 insertions, 14 deletions
diff --git a/synapse/federation/federation_server.py b/synapse/federation/federation_server.py
index af0107a46e..0f9302a6a8 100644
--- a/synapse/federation/federation_server.py
+++ b/synapse/federation/federation_server.py
@@ -14,7 +14,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 import logging
-import re
 
 import six
 from six import iteritems
@@ -44,6 +43,7 @@ from synapse.replication.http.federation import (
     ReplicationGetQueryRestServlet,
 )
 from synapse.types import get_domain_from_id
+from synapse.util import glob_to_regex
 from synapse.util.async_helpers import Linearizer, concurrently_execute
 from synapse.util.caches.response_cache import ResponseCache
 from synapse.util.logcontext import nested_logging_context
@@ -729,22 +729,10 @@ def _acl_entry_matches(server_name, acl_entry):
     if not isinstance(acl_entry, six.string_types):
         logger.warn("Ignoring non-str ACL entry '%s' (is %s)", acl_entry, type(acl_entry))
         return False
-    regex = _glob_to_regex(acl_entry)
+    regex = glob_to_regex(acl_entry)
     return regex.match(server_name)
 
 
-def _glob_to_regex(glob):
-    res = ''
-    for c in glob:
-        if c == '*':
-            res = res + '.*'
-        elif c == '?':
-            res = res + '.'
-        else:
-            res = res + re.escape(c)
-    return re.compile(res + "\\Z", re.IGNORECASE)
-
-
 class FederationHandlerRegistry(object):
     """Allows classes to register themselves as handlers for a given EDU or
     query type for incoming federation traffic.