diff options
| -rw-r--r-- | changelog.d/6904.removal | 1 | ||||
| -rw-r--r-- | synapse/handlers/directory.py | 75 | ||||
| -rw-r--r-- | synapse/handlers/room.py | 6 | ||||
| -rw-r--r-- | tests/handlers/test_directory.py | 154 |
4 files changed, 194 insertions, 42 deletions
diff --git a/changelog.d/6904.removal b/changelog.d/6904.removal new file mode 100644 index 0000000000..a5cc0c3605 --- /dev/null +++ b/changelog.d/6904.removal @@ -0,0 +1 @@ +Stop sending alias events during adding / removing aliases. Check alt_aliases in the latest canonical aliases event when deleting an alias. diff --git a/synapse/handlers/directory.py b/synapse/handlers/directory.py index 8c5980cb0c..f718388884 100644 --- a/synapse/handlers/directory.py +++ b/synapse/handlers/directory.py @@ -81,13 +81,7 @@ class DirectoryHandler(BaseHandler): @defer.inlineCallbacks def create_association( - self, - requester, - room_alias, - room_id, - servers=None, - send_event=True, - check_membership=True, + self, requester, room_alias, room_id, servers=None, check_membership=True, ): """Attempt to create a new alias @@ -97,7 +91,6 @@ class DirectoryHandler(BaseHandler): room_id (str) servers (list[str]|None): List of servers that others servers should try and join via - send_event (bool): Whether to send an updated m.room.aliases event check_membership (bool): Whether to check if the user is in the room before the alias can be set (if the server's config requires it). @@ -150,16 +143,9 @@ class DirectoryHandler(BaseHandler): ) yield self._create_association(room_alias, room_id, servers, creator=user_id) - if send_event: - try: - yield self.send_room_alias_update_event(requester, room_id) - except AuthError as e: - # sending the aliases event may fail due to the user not having - # permission in the room; this is permitted. - logger.info("Skipping updating aliases event due to auth error %s", e) @defer.inlineCallbacks - def delete_association(self, requester, room_alias, send_event=True): + def delete_association(self, requester, room_alias): """Remove an alias from the directory (this is only meant for human users; AS users should call @@ -168,9 +154,6 @@ class DirectoryHandler(BaseHandler): Args: requester (Requester): room_alias (RoomAlias): - send_event (bool): Whether to send an updated m.room.aliases event. - Note that, if we delete the canonical alias, we will always attempt - to send an m.room.canonical_alias event Returns: Deferred[unicode]: room id that the alias used to point to @@ -206,9 +189,6 @@ class DirectoryHandler(BaseHandler): room_id = yield self._delete_association(room_alias) try: - if send_event: - yield self.send_room_alias_update_event(requester, room_id) - yield self._update_canonical_alias( requester, requester.user.to_string(), room_id, room_alias ) @@ -319,25 +299,50 @@ class DirectoryHandler(BaseHandler): @defer.inlineCallbacks def _update_canonical_alias(self, requester, user_id, room_id, room_alias): + """ + Send an updated canonical alias event if the removed alias was set as + the canonical alias or listed in the alt_aliases field. + """ alias_event = yield self.state.get_current_state( room_id, EventTypes.CanonicalAlias, "" ) - alias_str = room_alias.to_string() - if not alias_event or alias_event.content.get("alias", "") != alias_str: + # There is no canonical alias, nothing to do. + if not alias_event: return - yield self.event_creation_handler.create_and_send_nonmember_event( - requester, - { - "type": EventTypes.CanonicalAlias, - "state_key": "", - "room_id": room_id, - "sender": user_id, - "content": {}, - }, - ratelimit=False, - ) + # Obtain a mutable version of the event content. + content = dict(alias_event.content) + send_update = False + + # Remove the alias property if it matches the removed alias. + alias_str = room_alias.to_string() + if alias_event.content.get("alias", "") == alias_str: + send_update = True + content.pop("alias", "") + + # Filter alt_aliases for the removed alias. + alt_aliases = content.pop("alt_aliases", None) + # If the aliases are not a list (or not found) do not attempt to modify + # the list. + if isinstance(alt_aliases, list): + send_update = True + alt_aliases = [alias for alias in alt_aliases if alias != alias_str] + if alt_aliases: + content["alt_aliases"] = alt_aliases + + if send_update: + yield self.event_creation_handler.create_and_send_nonmember_event( + requester, + { + "type": EventTypes.CanonicalAlias, + "state_key": "", + "room_id": room_id, + "sender": user_id, + "content": content, + }, + ratelimit=False, + ) @defer.inlineCallbacks def get_association_from_room_alias(self, room_alias): diff --git a/synapse/handlers/room.py b/synapse/handlers/room.py index 033083acac..49ec2f48bc 100644 --- a/synapse/handlers/room.py +++ b/synapse/handlers/room.py @@ -478,9 +478,7 @@ class RoomCreationHandler(BaseHandler): for alias_str in aliases: alias = RoomAlias.from_string(alias_str) try: - yield directory_handler.delete_association( - requester, alias, send_event=False - ) + yield directory_handler.delete_association(requester, alias) removed_aliases.append(alias_str) except SynapseError as e: logger.warning("Unable to remove alias %s from old room: %s", alias, e) @@ -511,7 +509,6 @@ class RoomCreationHandler(BaseHandler): RoomAlias.from_string(alias), new_room_id, servers=(self.hs.hostname,), - send_event=False, check_membership=False, ) logger.info("Moved alias %s to new room", alias) @@ -664,7 +661,6 @@ class RoomCreationHandler(BaseHandler): room_id=room_id, room_alias=room_alias, servers=[self.hs.hostname], - send_event=False, check_membership=False, ) diff --git a/tests/handlers/test_directory.py b/tests/handlers/test_directory.py index ee88cf5a4b..27b916aed4 100644 --- a/tests/handlers/test_directory.py +++ b/tests/handlers/test_directory.py @@ -18,9 +18,11 @@ from mock import Mock from twisted.internet import defer +import synapse.api.errors +from synapse.api.constants import EventTypes from synapse.config.room_directory import RoomDirectoryConfig -from synapse.rest.client.v1 import directory, room -from synapse.types import RoomAlias +from synapse.rest.client.v1 import directory, login, room +from synapse.types import RoomAlias, create_requester from tests import unittest @@ -85,6 +87,38 @@ class DirectoryTestCase(unittest.HomeserverTestCase): ignore_backoff=True, ) + def test_delete_alias_not_allowed(self): + room_id = "!8765qwer:test" + self.get_success( + self.store.create_room_alias_association(self.my_room, room_id, ["test"]) + ) + + self.get_failure( + self.handler.delete_association( + create_requester("@user:test"), self.my_room + ), + synapse.api.errors.AuthError, + ) + + def test_delete_alias(self): + room_id = "!8765qwer:test" + user_id = "@user:test" + self.get_success( + self.store.create_room_alias_association( + self.my_room, room_id, ["test"], user_id + ) + ) + + result = self.get_success( + self.handler.delete_association(create_requester(user_id), self.my_room) + ) + self.assertEquals(room_id, result) + + # The alias should not be found. + self.get_failure( + self.handler.get_association(self.my_room), synapse.api.errors.SynapseError + ) + def test_incoming_fed_query(self): self.get_success( self.store.create_room_alias_association( @@ -99,6 +133,122 @@ class DirectoryTestCase(unittest.HomeserverTestCase): self.assertEquals({"room_id": "!8765asdf:test", "servers": ["test"]}, response) +class CanonicalAliasTestCase(unittest.HomeserverTestCase): + """Test modifications of the canonical alias when delete aliases. + """ + + servlets = [ + synapse.rest.admin.register_servlets, + login.register_servlets, + room.register_servlets, + directory.register_servlets, + ] + + def prepare(self, reactor, clock, hs): + self.store = hs.get_datastore() + self.handler = hs.get_handlers().directory_handler + self.state_handler = hs.get_state_handler() + + # Create user + self.admin_user = self.register_user("admin", "pass", admin=True) + self.admin_user_tok = self.login("admin", "pass") + + # Create a test room + self.room_id = self.helper.create_room_as( + self.admin_user, tok=self.admin_user_tok + ) + + self.test_alias = "#test:test" + self.room_alias = RoomAlias.from_string(self.test_alias) + + # Create a new alias to this room. + self.get_success( + self.store.create_room_alias_association( + self.room_alias, self.room_id, ["test"], self.admin_user + ) + ) + + def test_remove_alias(self): + """Removing an alias that is the canonical alias should remove it there too.""" + # Set this new alias as the canonical alias for this room + self.helper.send_state( + self.room_id, + "m.room.canonical_alias", + {"alias": self.test_alias, "alt_aliases": [self.test_alias]}, + tok=self.admin_user_tok, + ) + + data = self.get_success( + self.state_handler.get_current_state( + self.room_id, EventTypes.CanonicalAlias, "" + ) + ) + self.assertEqual(data["content"]["alias"], self.test_alias) + self.assertEqual(data["content"]["alt_aliases"], [self.test_alias]) + + # Finally, delete the alias. + self.get_success( + self.handler.delete_association( + create_requester(self.admin_user), self.room_alias + ) + ) + + data = self.get_success( + self.state_handler.get_current_state( + self.room_id, EventTypes.CanonicalAlias, "" + ) + ) + self.assertNotIn("alias", data["content"]) + self.assertNotIn("alt_aliases", data["content"]) + + def test_remove_other_alias(self): + """Removing an alias listed as in alt_aliases should remove it there too.""" + # Create a second alias. + other_test_alias = "#test2:test" + other_room_alias = RoomAlias.from_string(other_test_alias) + self.get_success( + self.store.create_room_alias_association( + other_room_alias, self.room_id, ["test"], self.admin_user + ) + ) + + # Set the alias as the canonical alias for this room. + self.helper.send_state( + self.room_id, + "m.room.canonical_alias", + { + "alias": self.test_alias, + "alt_aliases": [self.test_alias, other_test_alias], + }, + tok=self.admin_user_tok, + ) + + data = self.get_success( + self.state_handler.get_current_state( + self.room_id, EventTypes.CanonicalAlias, "" + ) + ) + self.assertEqual(data["content"]["alias"], self.test_alias) + self.assertEqual( + data["content"]["alt_aliases"], [self.test_alias, other_test_alias] + ) + + # Delete the second alias. + self.get_success( + self.handler.delete_association( + create_requester(self.admin_user), other_room_alias + ) + ) + + data = self.get_success( + self.state_handler.get_current_state( + self.room_id, EventTypes.CanonicalAlias, "" + ) + ) + self.assertEqual(data["content"]["alias"], self.test_alias) + self.assertEqual(data["content"]["alt_aliases"], [self.test_alias]) + + class TestCreateAliasACL(unittest.HomeserverTestCase): user_id = "@test:test" |