Handle glob -> regex errors

synapse/push/push_rule_evaluator.py

@@ -258,6 +258,7 @@ def _glob_matches(glob, value, word_boundary=False):
     Returns:
         bool
     """
+    try:
         if IS_GLOB.search(glob):
             r = re.escape(glob)
 
@@ -292,6 +293,9 @@ def _glob_matches(glob, value, word_boundary=False):
             return r.search(value)
         else:
             return value.lower() == glob.lower()
+    except re.error:
+        logger.warn("Failed to parse glob to regex: %r", glob)
+        return False
 
 
 def _flatten_dict(d, prefix=[], result={}):