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Add avatar and topic settings for server notice room (#16679)
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MatMaul authored Dec 12, 2023
1 parent 9f6c644 commit e108c31
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1 change: 1 addition & 0 deletions changelog.d/16679.feature
Original file line number Diff line number Diff line change
@@ -0,0 +1 @@
Add config options to set the avatar and the topic of the server notices room.
6 changes: 4 additions & 2 deletions docs/server_notices.md
Original file line number Diff line number Diff line change
Expand Up @@ -44,14 +44,16 @@ section, which should look like this:
server_notices:
system_mxid_localpart: server
system_mxid_display_name: "Server Notices"
system_mxid_avatar_url: "mxc://server.com/oumMVlgDnLYFaPVkExemNVVZ"
system_mxid_avatar_url: "mxc://example.com/oumMVlgDnLYFaPVkExemNVVZ"
room_name: "Server Notices"
room_avatar_url: "mxc://example.com/oumMVlgDnLYFaPVkExemNVVZ"
room_topic: "Room used by your server admin to notice you of important information"
auto_join: true
```
The only compulsory setting is `system_mxid_localpart`, which defines the user
id of the Server Notices user, as above. `room_name` defines the name of the
room which will be created.
room which will be created, `room_avatar_url` its avatar and `room_topic` its topic.

`system_mxid_display_name` and `system_mxid_avatar_url` can be used to set the
displayname and avatar of the Server Notices user.
Expand Down
8 changes: 7 additions & 1 deletion docs/usage/configuration/config_documentation.md
Original file line number Diff line number Diff line change
Expand Up @@ -3837,16 +3837,22 @@ Sub-options for this setting include:
* `system_mxid_display_name`: set the display name of the "notices" user
* `system_mxid_avatar_url`: set the avatar for the "notices" user
* `room_name`: set the room name of the server notices room
* `room_avatar_url`: optional string. The room avatar to use for server notice rooms. If set to the empty string `""`, notice rooms will not be given an avatar. Defaults to the empty string. _Added in Synapse 1.99.0._
* `room_topic`: optional string. The topic to use for server notice rooms. If set to the empty string `""`, notice rooms will not be given a topic. Defaults to the empty string. _Added in Synapse 1.99.0._
* `auto_join`: boolean. If true, the user will be automatically joined to the room instead of being invited.
Defaults to false. _Added in Synapse 1.98.0._

Note that the name, topic and avatar of existing server notice rooms will only be updated when a new notice event is sent.

Example configuration:
```yaml
server_notices:
system_mxid_localpart: notices
system_mxid_display_name: "Server Notices"
system_mxid_avatar_url: "mxc://server.com/oumMVlgDnLYFaPVkExemNVVZ"
system_mxid_avatar_url: "mxc://example.com/oumMVlgDnLYFaPVkExemNVVZ"
room_name: "Server Notices"
room_avatar_url: "mxc://example.com/oumMVlgDnLYFaPVkExemNVVZ"
room_topic: "Room used by your server admin to notice you of important information"
auto_join: true
```
---
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12 changes: 12 additions & 0 deletions synapse/config/server_notices.py
Original file line number Diff line number Diff line change
Expand Up @@ -38,6 +38,14 @@ class ServerNoticesConfig(Config):
server_notices_room_name (str|None):
The name to use for the server notices room.
None if server notices are not enabled.
server_notices_room_avatar_url (str|None):
The avatar URL to use for the server notices room.
None if server notices are not enabled.
server_notices_room_topic (str|None):
The topic to use for the server notices room.
None if server notices are not enabled.
"""

section = "servernotices"
Expand All @@ -48,6 +56,8 @@ def __init__(self, *args: Any):
self.server_notices_mxid_display_name: Optional[str] = None
self.server_notices_mxid_avatar_url: Optional[str] = None
self.server_notices_room_name: Optional[str] = None
self.server_notices_room_avatar_url: Optional[str] = None
self.server_notices_room_topic: Optional[str] = None
self.server_notices_auto_join: bool = False

def read_config(self, config: JsonDict, **kwargs: Any) -> None:
Expand All @@ -63,4 +73,6 @@ def read_config(self, config: JsonDict, **kwargs: Any) -> None:
self.server_notices_mxid_avatar_url = c.get("system_mxid_avatar_url", None)
# todo: i18n
self.server_notices_room_name = c.get("room_name", "Server Notices")
self.server_notices_room_avatar_url = c.get("room_avatar_url", None)
self.server_notices_room_topic = c.get("room_topic", None)
self.server_notices_auto_join = c.get("auto_join", False)
113 changes: 102 additions & 11 deletions synapse/server_notices/server_notices_manager.py
Original file line number Diff line number Diff line change
Expand Up @@ -16,7 +16,7 @@

from synapse.api.constants import EventTypes, Membership, RoomCreationPreset
from synapse.events import EventBase
from synapse.types import Requester, StreamKeyType, UserID, create_requester
from synapse.types import JsonDict, Requester, StreamKeyType, UserID, create_requester
from synapse.util.caches.descriptors import cached

if TYPE_CHECKING:
Expand All @@ -36,6 +36,7 @@ def __init__(self, hs: "HomeServer"):
self._room_member_handler = hs.get_room_member_handler()
self._event_creation_handler = hs.get_event_creation_handler()
self._message_handler = hs.get_message_handler()
self._storage_controllers = hs.get_storage_controllers()
self._is_mine_id = hs.is_mine_id
self._server_name = hs.hostname

Expand Down Expand Up @@ -160,6 +161,27 @@ async def get_or_create_notice_room_for_user(self, user_id: str) -> str:
self._config.servernotices.server_notices_mxid_display_name,
self._config.servernotices.server_notices_mxid_avatar_url,
)
await self._update_room_info(
requester,
room_id,
EventTypes.Name,
"name",
self._config.servernotices.server_notices_room_name,
)
await self._update_room_info(
requester,
room_id,
EventTypes.RoomAvatar,
"url",
self._config.servernotices.server_notices_room_avatar_url,
)
await self._update_room_info(
requester,
room_id,
EventTypes.Topic,
"topic",
self._config.servernotices.server_notices_room_topic,
)
return room_id

# apparently no existing notice room: create a new one
Expand All @@ -178,15 +200,31 @@ async def get_or_create_notice_room_for_user(self, user_id: str) -> str:
"avatar_url": self._config.servernotices.server_notices_mxid_avatar_url,
}

room_config: JsonDict = {
"preset": RoomCreationPreset.PRIVATE_CHAT,
"power_level_content_override": {"users_default": -10},
}

if self._config.servernotices.server_notices_room_name:
room_config["name"] = self._config.servernotices.server_notices_room_name
if self._config.servernotices.server_notices_room_topic:
room_config["topic"] = self._config.servernotices.server_notices_room_topic
if self._config.servernotices.server_notices_room_avatar_url:
room_config["initial_state"] = [
{
"type": EventTypes.RoomAvatar,
"state_key": "",
"content": {
"url": self._config.servernotices.server_notices_room_avatar_url,
},
}
]

# `ignore_forced_encryption` is used to bypass `encryption_enabled_by_default_for_room_type`
# setting if it set, since the server notices will not be encrypted anyway.
room_id, _, _ = await self._room_creation_handler.create_room(
requester,
config={
"preset": RoomCreationPreset.PRIVATE_CHAT,
"name": self._config.servernotices.server_notices_room_name,
"power_level_content_override": {"users_default": -10},
},
config=room_config,
ratelimit=False,
creator_join_profile=join_profile,
ignore_forced_encryption=True,
Expand Down Expand Up @@ -265,11 +303,12 @@ async def _update_notice_user_profile_if_changed(

assert self.server_notices_mxid is not None

notice_user_data_in_room = await self._message_handler.get_room_data(
create_requester(self.server_notices_mxid),
room_id,
EventTypes.Member,
self.server_notices_mxid,
notice_user_data_in_room = (
await self._storage_controllers.state.get_current_state_event(
room_id,
EventTypes.Member,
self.server_notices_mxid,
)
)

assert notice_user_data_in_room is not None
Expand All @@ -288,3 +327,55 @@ async def _update_notice_user_profile_if_changed(
ratelimit=False,
content={"displayname": display_name, "avatar_url": avatar_url},
)

async def _update_room_info(
self,
requester: Requester,
room_id: str,
info_event_type: str,
info_content_key: str,
info_value: Optional[str],
) -> None:
"""
Updates a specific notice room's info if it's different from what is set.
Args:
requester: The user who is performing the update.
room_id: The ID of the server notice room
info_event_type: The event type holding the specific info
info_content_key: The key containing the specific info in the event's content
info_value: The expected value for the specific info
"""
room_info_event = await self._storage_controllers.state.get_current_state_event(
room_id,
info_event_type,
"",
)

existing_info_value = None
if room_info_event:
existing_info_value = room_info_event.get(info_content_key)
if existing_info_value == info_value:
return
if not existing_info_value and not info_value:
# A missing `info_value` can either be represented by a None
# or an empty string, so we assume that if they're both falsey
# they're equivalent.
return

if info_value is None:
info_value = ""

room_info_event_dict = {
"type": info_event_type,
"room_id": room_id,
"sender": requester.user.to_string(),
"state_key": "",
"content": {
info_content_key: info_value,
},
}

event, _ = await self._event_creation_handler.create_and_send_nonmember_event(
requester, room_info_event_dict, ratelimit=False
)
109 changes: 109 additions & 0 deletions tests/rest/admin/test_server_notice.py
Original file line number Diff line number Diff line change
Expand Up @@ -596,6 +596,115 @@ def test_update_notice_user_avatar_when_changed(self) -> None:
)
self.assertEqual(notice_user_state["avatar_url"], new_avatar_url)

@override_config(
{
"server_notices": {
"system_mxid_localpart": "notices",
"room_avatar_url": "test/url",
"room_topic": "Test Topic",
}
}
)
def test_notice_room_avatar_and_topic(self) -> None:
"""
Tests that using `room_avatar_url` and `room_topic` config properly sets
those properties for the created notice rooms.
"""
server_notice_request_content = {
"user_id": self.other_user,
"content": {"msgtype": "m.text", "body": "test msg one"},
}

self.make_request(
"POST",
self.url,
access_token=self.admin_user_tok,
content=server_notice_request_content,
)

invited_rooms = self._check_invite_and_join_status(self.other_user, 1, 0)
notice_room_id = invited_rooms[0].room_id
self.helper.join(
room=notice_room_id, user=self.other_user, tok=self.other_user_token
)

room_avatar_state = self.helper.get_state(
notice_room_id,
"m.room.avatar",
self.other_user_token,
state_key="",
)
self.assertEqual(room_avatar_state["url"], "test/url")

room_topic_state = self.helper.get_state(
notice_room_id,
"m.room.topic",
self.other_user_token,
state_key="",
)
self.assertEqual(room_topic_state["topic"], "Test Topic")

@override_config(
{
"server_notices": {
"system_mxid_localpart": "notices",
"room_avatar_url": "test/url",
}
}
)
def test_update_room_avatar_when_changed(self) -> None:
"""
Tests that existing server notices room avatar is updated when it is
different from the one in homeserver config.
"""
server_notice_request_content = {
"user_id": self.other_user,
"content": {"msgtype": "m.text", "body": "test msg one"},
}

self.make_request(
"POST",
self.url,
access_token=self.admin_user_tok,
content=server_notice_request_content,
)

invited_rooms = self._check_invite_and_join_status(self.other_user, 1, 0)
notice_room_id = invited_rooms[0].room_id
self.helper.join(
room=notice_room_id, user=self.other_user, tok=self.other_user_token
)

room_avatar_state = self.helper.get_state(
notice_room_id,
"m.room.avatar",
self.other_user_token,
state_key="",
)
self.assertEqual(room_avatar_state["url"], "test/url")

# simulate a change in server config after a server restart.
new_avatar_url = "test/new-url"
self.server_notices_manager._config.servernotices.server_notices_room_avatar_url = (
new_avatar_url
)
self.server_notices_manager.get_or_create_notice_room_for_user.cache.invalidate_all()

self.make_request(
"POST",
self.url,
access_token=self.admin_user_tok,
content=server_notice_request_content,
)

room_avatar_state = self.helper.get_state(
notice_room_id,
"m.room.avatar",
self.other_user_token,
state_key="",
)
self.assertEqual(room_avatar_state["url"], new_avatar_url)

def _check_invite_and_join_status(
self, user_id: str, expected_invites: int, expected_memberships: int
) -> Sequence[RoomsForUser]:
Expand Down

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