diff --git a/synapse/handlers/directory.py b/synapse/handlers/directory.py
index ef866da1b6..c745e6740b 100644
--- a/synapse/handlers/directory.py
+++ b/synapse/handlers/directory.py
@@ -20,7 +20,14 @@ import string
from twisted.internet import defer
from synapse.api.constants import EventTypes
-from synapse.api.errors import AuthError, CodeMessageException, Codes, SynapseError
+from synapse.api.errors import (
+ AuthError,
+ CodeMessageException,
+ Codes,
+ NotFoundError,
+ StoreError,
+ SynapseError,
+)
from synapse.types import RoomAlias, UserID, get_domain_from_id
from ._base import BaseHandler
@@ -109,7 +116,13 @@ class DirectoryHandler(BaseHandler):
def delete_association(self, requester, user_id, room_alias):
# association deletion for human users
- can_delete = yield self._user_can_delete_alias(room_alias, user_id)
+ try:
+ can_delete = yield self._user_can_delete_alias(room_alias, user_id)
+ except StoreError as e:
+ if e.code == 404:
+ raise NotFoundError("Unknown room alias")
+ raise
+
if not can_delete:
raise AuthError(
403, "You don't have permission to delete the alias.",
@@ -320,7 +333,7 @@ class DirectoryHandler(BaseHandler):
def _user_can_delete_alias(self, alias, user_id):
creator = yield self.store.get_room_alias_creator(alias.to_string())
- if creator and creator == user_id:
+ if creator == user_id:
defer.returnValue(True)
is_admin = yield self.auth.is_server_admin(UserID.from_string(user_id))
diff --git a/synapse/storage/directory.py b/synapse/storage/directory.py
index 808194236a..cfb687cb53 100644
--- a/synapse/storage/directory.py
+++ b/synapse/storage/directory.py
@@ -75,7 +75,6 @@ class DirectoryWorkerStore(SQLBaseStore):
},
retcol="creator",
desc="get_room_alias_creator",
- allow_none=True
)
@cached(max_entries=5000)
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