diff --git a/changelog.d/10930.bugfix b/changelog.d/10930.bugfix new file mode 100644 index 000000000..756bfe910 --- /dev/null +++ b/changelog.d/10930.bugfix @@ -0,0 +1 @@ +Newly-created public rooms are now only assigned an alias if the room's creation has not been blocked by permission settings. Contributed by @AndrewFerr. diff --git a/synapse/handlers/directory.py b/synapse/handlers/directory.py index 14ed7d987..8567cb0e0 100644 --- a/synapse/handlers/directory.py +++ b/synapse/handlers/directory.py @@ -145,7 +145,7 @@ class DirectoryHandler: if not self.config.roomdirectory.is_alias_creation_allowed( user_id, room_id, room_alias_str ): - # Lets just return a generic message, as there may be all sorts of + # Let's just return a generic message, as there may be all sorts of # reasons why we said no. TODO: Allow configurable error messages # per alias creation rule? raise SynapseError(403, "Not allowed to create alias") @@ -461,7 +461,7 @@ class DirectoryHandler: if not self.config.roomdirectory.is_publishing_room_allowed( user_id, room_id, room_aliases ): - # Lets just return a generic message, as there may be all sorts of + # Let's just return a generic message, as there may be all sorts of # reasons why we said no. TODO: Allow configurable error messages # per alias creation rule? raise SynapseError(403, "Not allowed to publish room") diff --git a/synapse/handlers/room.py b/synapse/handlers/room.py index 6f39e9446..cf01d58ea 100644 --- a/synapse/handlers/room.py +++ b/synapse/handlers/room.py @@ -773,6 +773,15 @@ class RoomCreationHandler: if not allowed_by_third_party_rules: raise SynapseError(403, "Room visibility value not allowed.") + if is_public: + if not self.config.roomdirectory.is_publishing_room_allowed( + user_id, room_id, room_alias + ): + # Let's just return a generic message, as there may be all sorts of + # reasons why we said no. TODO: Allow configurable error messages + # per alias creation rule? + raise SynapseError(403, "Not allowed to publish room") + directory_handler = self.hs.get_directory_handler() if room_alias: await directory_handler.create_association( @@ -783,15 +792,6 @@ class RoomCreationHandler: check_membership=False, ) - if is_public: - if not self.config.roomdirectory.is_publishing_room_allowed( - user_id, room_id, room_alias - ): - # Lets just return a generic message, as there may be all sorts of - # reasons why we said no. TODO: Allow configurable error messages - # per alias creation rule? - raise SynapseError(403, "Not allowed to publish room") - preset_config = config.get( "preset", RoomCreationPreset.PRIVATE_CHAT diff --git a/tests/handlers/test_directory.py b/tests/handlers/test_directory.py index 6a2e76ca4..be008227d 100644 --- a/tests/handlers/test_directory.py +++ b/tests/handlers/test_directory.py @@ -15,8 +15,8 @@ from unittest.mock import Mock -import synapse import synapse.api.errors +import synapse.rest.admin from synapse.api.constants import EventTypes from synapse.config.room_directory import RoomDirectoryConfig from synapse.rest.client import directory, login, room @@ -432,6 +432,106 @@ class TestCreateAliasACL(unittest.HomeserverTestCase): self.assertEquals(200, channel.code, channel.result) +class TestCreatePublishedRoomACL(unittest.HomeserverTestCase): + data = {"room_alias_name": "unofficial_test"} + + servlets = [ + synapse.rest.admin.register_servlets_for_client_rest_resource, + login.register_servlets, + directory.register_servlets, + room.register_servlets, + ] + hijack_auth = False + + def prepare(self, reactor, clock, hs): + self.allowed_user_id = self.register_user("allowed", "pass") + self.allowed_access_token = self.login("allowed", "pass") + + self.denied_user_id = self.register_user("denied", "pass") + self.denied_access_token = self.login("denied", "pass") + + # This time we add custom room list publication rules + config = {} + config["alias_creation_rules"] = [] + config["room_list_publication_rules"] = [ + {"user_id": "*", "alias": "*", "action": "deny"}, + {"user_id": self.allowed_user_id, "alias": "*", "action": "allow"}, + ] + + rd_config = RoomDirectoryConfig() + rd_config.read_config(config) + + self.hs.config.roomdirectory.is_publishing_room_allowed = ( + rd_config.is_publishing_room_allowed + ) + + return hs + + def test_denied_without_publication_permission(self): + """ + Try to create a room, register an alias for it, and publish it, + as a user without permission to publish rooms. + (This is used as both a standalone test & as a helper function.) + """ + self.helper.create_room_as( + self.denied_user_id, + tok=self.denied_access_token, + extra_content=self.data, + is_public=True, + expect_code=403, + ) + + def test_allowed_when_creating_private_room(self): + """ + Try to create a room, register an alias for it, and NOT publish it, + as a user without permission to publish rooms. + (This is used as both a standalone test & as a helper function.) + """ + self.helper.create_room_as( + self.denied_user_id, + tok=self.denied_access_token, + extra_content=self.data, + is_public=False, + expect_code=200, + ) + + def test_allowed_with_publication_permission(self): + """ + Try to create a room, register an alias for it, and publish it, + as a user WITH permission to publish rooms. + (This is used as both a standalone test & as a helper function.) + """ + self.helper.create_room_as( + self.allowed_user_id, + tok=self.allowed_access_token, + extra_content=self.data, + is_public=False, + expect_code=200, + ) + + def test_can_create_as_private_room_after_rejection(self): + """ + After failing to publish a room with an alias as a user without publish permission, + retry as the same user, but without publishing the room. + + This should pass, but used to fail because the alias was registered by the first + request, even though the room creation was denied. + """ + self.test_denied_without_publication_permission() + self.test_allowed_when_creating_private_room() + + def test_can_create_with_permission_after_rejection(self): + """ + After failing to publish a room with an alias as a user without publish permission, + retry as someone with permission, using the same alias. + + This also used to fail because of the alias having been registered by the first + request, leaving it unavailable for any other user's new rooms. + """ + self.test_denied_without_publication_permission() + self.test_allowed_with_publication_permission() + + class TestRoomListSearchDisabled(unittest.HomeserverTestCase): user_id = "@test:test"