Add support for announcement groups

mausignald/types.py

@@ -175,6 +175,12 @@ class AccessControlMode(SerializableEnum):
     UNRECOGNIZED = "UNRECOGNIZED"
 
 
+class AnnouncementsMode(SerializableEnum):
+    UNKNOWN = "UNKNOWN"
+    ENABLED = "ENABLED"
+    DISABLED = "DISABLED"
+
+
 @dataclass
 class GroupAccessControl(SerializableAttrs):
     attributes: AccessControlMode = AccessControlMode.UNKNOWN
@@ -213,6 +219,7 @@ class GroupV2(GroupV2ID, SerializableAttrs):
         factory=lambda: [], json="pendingMemberDetail"
     )
     requesting_members: List[Address] = field(factory=lambda: [], json="requestingMembers")
+    announcements: AnnouncementsMode = field(default=AnnouncementsMode.UNKNOWN)
 
 
 @dataclass

mautrix_signal/portal.py

@@ -30,6 +30,7 @@ from mausignald.errors import AttachmentTooLargeError, NotConnected, RPCError
 from mausignald.types import (
     AccessControlMode,
     Address,
+    AnnouncementsMode,
     Attachment,
     Contact,
     Group,
@@ -1504,6 +1505,7 @@ class Portal(DBPortal, BasePortal):
         is_initial: bool = False,
     ) -> PowerLevelStateEventContent:
         levels = levels or PowerLevelStateEventContent()
+        levels.events_default = 0
         if self.is_direct:
             levels.ban = 99
             levels.kick = 99
@@ -1517,20 +1519,24 @@ class Portal(DBPortal, BasePortal):
                     puppet = await p.Puppet.get_by_address(Address(uuid=detail.uuid))
                     level = 50 if detail.role == GroupMemberRole.ADMINISTRATOR else 0
                     levels.users[puppet.intent_for(self).mxid] = level
+                announcements = info.announcements
             else:
                 ac = GroupAccessControl()
+                announcements = AnnouncementsMode.UNKNOWN
             levels.ban = 50
             levels.kick = 50
             levels.invite = 50 if ac.members == AccessControlMode.ADMINISTRATOR else 0
             levels.state_default = 50
             meta_edit_level = 50 if ac.attributes == AccessControlMode.ADMINISTRATOR else 0
+            if announcements == AnnouncementsMode.ENABLED:
+                levels.events_default = 50
+        levels.events[EventType.REACTION] = 0
         levels.events[EventType.ROOM_NAME] = meta_edit_level
         levels.events[EventType.ROOM_AVATAR] = meta_edit_level
         levels.events[EventType.ROOM_TOPIC] = meta_edit_level
         levels.events[EventType.ROOM_ENCRYPTION] = 50 if self.matrix.e2ee else 99
         levels.events[EventType.ROOM_TOMBSTONE] = 99
         levels.users_default = 0
-        levels.events_default = 0
         # Remote delete is only for your own messages
         levels.redact = 99
         if self.main_intent.mxid not in levels.users: