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-rw-r--r--synapse/state/v1.py4
1 files changed, 3 insertions, 1 deletions
diff --git a/synapse/state/v1.py b/synapse/state/v1.py
index 70a981f4..19e091ce 100644
--- a/synapse/state/v1.py
+++ b/synapse/state/v1.py
@@ -298,6 +298,8 @@ def _resolve_normal_events(events, auth_events):
def _ordered_events(events):
def key_func(e):
- return -int(e.depth), hashlib.sha1(e.event_id.encode('ascii')).hexdigest()
+ # we have to use utf-8 rather than ascii here because it turns out we allow
+ # people to send us events with non-ascii event IDs :/
+ return -int(e.depth), hashlib.sha1(e.event_id.encode('utf-8')).hexdigest()
return sorted(events, key=key_func)