1 files changed, 10 insertions, 3 deletions
diff --git a/synapse/handlers/register.py b/synapse/handlers/register.py
index 47b9ae8d7f..235f11c322 100644
--- a/synapse/handlers/register.py
+++ b/synapse/handlers/register.py
@@ -217,8 +217,13 @@ class RegistrationHandler(BaseHandler):
else:
# autogen a sequential user ID
- # Fail after being unable to find a suitable ID a few times
- for x in range(10):
+ fail_count = 0
+ user = None
+ while not user:
+ # Fail after being unable to find a suitable ID a few times
+ if fail_count > 10:
+ raise SynapseError(500, "Unable to find a suitable guest user ID")
+
localpart = yield self._generate_user_id()
user = UserID(localpart, self.hs.hostname)
user_id = user.to_string()
@@ -238,7 +243,9 @@ class RegistrationHandler(BaseHandler):
break
except SynapseError:
# if user id is taken, just generate another
- pass
+ user = None
+ user_id = None
+ fail_count += 1
if not self.hs.config.user_consent_at_registration:
yield self._auto_join_rooms(user_id)
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