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authorErik Johnston <erik@matrix.org>2018-10-25 15:25:31 +0100
committerErik Johnston <erik@matrix.org>2018-10-25 15:25:31 +0100
commitb94a43d5b5a949fbd67109b34cfcec925fa82fe4 (patch)
tree1e427071264b9cd23233175b3cff4684d93d6e36 /synapse/api
parentUse allow/deny (diff)
parentMerge pull request #3975 from matrix-org/matthew/autocreate_autojoin (diff)
downloadsynapse-b94a43d5b5a949fbd67109b34cfcec925fa82fe4.tar.xz
Merge branch 'develop' of github.com:matrix-org/synapse into erikj/alias_disallow_list
Diffstat (limited to 'synapse/api')
-rw-r--r--synapse/api/filtering.py5
1 files changed, 4 insertions, 1 deletions
diff --git a/synapse/api/filtering.py b/synapse/api/filtering.py
index eed8c67e6a..677c0bdd4c 100644
--- a/synapse/api/filtering.py
+++ b/synapse/api/filtering.py
@@ -172,7 +172,10 @@ USER_FILTER_SCHEMA = {
                 # events a lot easier as we can then use a negative lookbehind
                 # assertion to split '\.' If we allowed \\ then it would
                 # incorrectly split '\\.' See synapse.events.utils.serialize_event
-                "pattern": "^((?!\\\).)*$"
+                #
+                # Note that because this is a regular expression, we have to escape
+                # each backslash in the pattern.
+                "pattern": r"^((?!\\\\).)*$"
             }
         }
     },