Update roadmap

It was asking for trouble

ROADMAP.md

@@ -10,25 +10,20 @@
       * [x] Videos
       * [x] Images
       * [ ] Locations
-    * [ ] Replies
-      * [x] In DMs
-      * [ ] In multi-user rooms
-      * [ ] To relay users
-    * [ ] Mentions
-      * [x] In DMs
-      * [ ] In multi-user rooms
-      * [x] To relay users
+    * [x] Replies<sup>[1]</sup>
+    * [x] Mentions<sup>[1]</sup>
     * [ ] Polls
-  * [x] Message redactions<sup>[1]</sup>
+  * [x] Message redactions<sup>[2]</sup>
   * [ ] Message reactions
   * [x] Read receipts
-  * [ ] Power level
+  * [x] Power level
   * [ ] Membership actions
     * [ ] Invite
     * [ ] Kick
     * [ ] Leave
   * [ ] Room metadata changes
     * [ ] Name
+    * [ ] Topic
     * [ ] Avatar
     * [ ] Per-room user nick
 * KakaoTalk → Matrix
@@ -52,17 +47,15 @@
   * [ ] Read receipts
     * [ ] On backfill
     * [x] On live event
-  * [ ] Admin status
+  * [x] Admin status
   * [x] Membership actions
     * [x] Add member
     * [x] Remove member
     * [x] Leave
-  * [ ] Chat metadata changes
-    * [x] Title
-    * [ ] Avatar
-  * [ ] Initial chat metadata
-    * [x] Title
-    * [ ] Avatar
+  * [x] Channel metadata
+    * [x] Name
+    * [x] Description
+    * [x] Cover photo<sup>[3]</sup>
   * [x] User metadata
     * [x] Name
     * [x] Avatar
@@ -79,4 +72,6 @@
     * [ ] For new KakaoTalk channels
   * [x] Option to use own Matrix account for messages sent from other KakaoTalk clients
 
-<sup>[1]</sup> Only recently-sent messages can be deleted
+<sup>[1]</sup> Sometimes fails with "Invalid body" error
+<sup>[2]</sup> Only recently-sent messages can be deleted
+<sup>[3]</sup> Might only get synced on backfill, or on changing channel name/description

matrix_appservice_kakaotalk/db/portal.py

@@ -38,10 +38,12 @@ class Portal:
     kt_type: ChannelType
     mxid: RoomID | None
     name: str | None
+    description: str | None
     photo_id: str | None
     avatar_url: ContentURI | None
     encrypted: bool
     name_set: bool
+    topic_set: bool
     avatar_set: bool
     relay_user_id: UserID | None
 
@@ -56,7 +58,7 @@ class Portal:
     @classmethod
     async def get_by_ktid(cls, ktid: int, kt_receiver: int) -> Portal | None:
         q = """
-            SELECT ktid, kt_receiver, kt_type, mxid, name, photo_id, avatar_url, encrypted,
+            SELECT ktid, kt_receiver, kt_type, mxid, name, description, photo_id, avatar_url, encrypted,
                    name_set, avatar_set, relay_user_id
             FROM portal WHERE ktid=$1 AND kt_receiver=$2
         """
@@ -66,7 +68,7 @@ class Portal:
     @classmethod
     async def get_by_mxid(cls, mxid: RoomID) -> Portal | None:
         q = """
-            SELECT ktid, kt_receiver, kt_type, mxid, name, photo_id, avatar_url, encrypted,
+            SELECT ktid, kt_receiver, kt_type, mxid, name, description, photo_id, avatar_url, encrypted,
                    name_set, avatar_set, relay_user_id
             FROM portal WHERE mxid=$1
         """
@@ -76,7 +78,7 @@ class Portal:
     @classmethod
     async def get_all_by_receiver(cls, kt_receiver: int) -> list[Portal]:
         q = """
-            SELECT ktid, kt_receiver, kt_type, mxid, name, photo_id, avatar_url, encrypted,
+            SELECT ktid, kt_receiver, kt_type, mxid, name, description, photo_id, avatar_url, encrypted,
                    name_set, avatar_set, relay_user_id
             FROM portal WHERE kt_receiver=$1
         """
@@ -86,7 +88,7 @@ class Portal:
     @classmethod
     async def all(cls) -> list[Portal]:
         q = """
-            SELECT ktid, kt_receiver, kt_type, mxid, name, photo_id, avatar_url, encrypted,
+            SELECT ktid, kt_receiver, kt_type, mxid, name, description, photo_id, avatar_url, encrypted,
                    name_set, avatar_set, relay_user_id
             FROM portal
         """
@@ -101,6 +103,7 @@ class Portal:
             self.kt_type,
             self.mxid,
             self.name,
+            self.description,
             self.photo_id,
             self.avatar_url,
             self.encrypted,
@@ -111,9 +114,9 @@ class Portal:
 
     async def insert(self) -> None:
         q = """
-        INSERT INTO portal (ktid, kt_receiver, kt_type, mxid, name, photo_id, avatar_url,
+        INSERT INTO portal (ktid, kt_receiver, kt_type, mxid, name, description, photo_id, avatar_url,
                             encrypted, name_set, avatar_set, relay_user_id)
-        VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11)
+        VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12)
         """
         await self.db.execute(q, *self._values)
 
@@ -123,8 +126,8 @@ class Portal:
 
     async def save(self) -> None:
         q = """
-            UPDATE portal SET kt_type=$3, mxid=$4, name=$5, photo_id=$6, avatar_url=$7,
-                              encrypted=$8, name_set=$9, avatar_set=$10, relay_user_id=$11
+            UPDATE portal SET kt_type=$3, mxid=$4, name=$5, description=$6, photo_id=$7, avatar_url=$8,
+                              encrypted=$9, name_set=$10, avatar_set=$11, relay_user_id=$12
             WHERE ktid=$1 AND kt_receiver=$2
         """
         await self.db.execute(q, *self._values)

matrix_appservice_kakaotalk/db/upgrade/__init__.py

@@ -3,3 +3,4 @@ from mautrix.util.async_db import UpgradeTable
 upgrade_table = UpgradeTable()
 
 from . import v01_initial_revision
+from . import v02_channel_meta

matrix_appservice_kakaotalk/db/upgrade/v02_channel_meta.py

@@ -0,0 +1,24 @@
+# matrix-appservice-kakaotalk - A Matrix-KakaoTalk puppeting bridge.
+# Copyright (C) 2022 Tulir Asokan, Andrew Ferrazzutti
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+from mautrix.util.async_db import Connection
+
+from . import upgrade_table
+
+
+@upgrade_table.register(description="Support channel descriptions")
+async def upgrade_v2(conn: Connection) -> None:
+    await conn.execute("ALTER TABLE portal ADD COLUMN description TEXT")
+    await conn.execute("ALTER TABLE portal ADD COLUMN topic_set BOOLEAN NOT NULL DEFAULT false")

matrix_appservice_kakaotalk/formatter/from_matrix.py

@@ -35,7 +35,7 @@ from ..kt.types.chat.attachment import ReplyAttachment, MentionStruct
 
 from ..kt.client.types import TO_MSGTYPE_MAP
 
-from .. import puppet as pu, user as u
+from .. import portal as po, puppet as pu, user as u
 from ..db import Message as DBMessage
 
 
@@ -90,20 +90,23 @@ class ToKakaoTalkParser(MatrixParser[KakaoTalkFormatString]):
     fs = KakaoTalkFormatString
 
 
-async def _get_id_from_mxid(mxid: UserID) -> Long | None:
-    user = await u.User.get_by_mxid(mxid, create=False)
-    if user and user.ktid:
-        return user.ktid
-    else:
-        puppet = await pu.Puppet.get_by_mxid(mxid, create=False)
-        return puppet.ktid if puppet else None
+async def _get_id_from_mxid(mxid: UserID, portal: po.Portal) -> Long | None:
+    orig_sender = await u.User.get_by_mxid(mxid, create=False)
+    if orig_sender and orig_sender.ktid:
+        return orig_sender.ktid
+    elif orig_sender:
+        sender, _ = await portal.get_relay_sender(orig_sender, "relation")
+        if sender and sender.ktid:
+            return sender.ktid
+    puppet = await pu.Puppet.get_by_mxid(mxid, create=False)
+    return puppet.ktid if puppet else None
 
 
 async def matrix_to_kakaotalk(
     content: MessageEventContent,
     room_id: RoomID,
     log: TraceLogger,
-    intent: IntentAPI,
+    portal: po.Portal,
     skip_reply: bool = False
 ) -> SendParams:
     # NOTE By design, this *throws* if user intent can't be matched (i.e. if a reply can't be created)
@@ -115,17 +118,17 @@ async def matrix_to_kakaotalk(
                 " to bridge text message reply metadata to KakaoTalk"
             )
         try:
-            src_event = await intent.get_event(room_id, message.mxid)
+            src_event = await portal.main_intent.get_event(room_id, message.mxid)
         except:
             log.exception(f"Failed to find Matrix event for reply target {message.mxid}")
             raise
-        src_kt_sender = await _get_id_from_mxid(src_event.sender)
+        src_kt_sender = await _get_id_from_mxid(src_event.sender, portal)
         if src_kt_sender is None:
             raise ValueError(
                 f"Found no KakaoTalk user ID for reply target sender {src_event.sender}"
             )
         content.trim_reply_fallback()
-        src_converted = await matrix_to_kakaotalk(src_event.content, room_id, log, intent, skip_reply=True)
+        src_converted = await matrix_to_kakaotalk(src_event.content, room_id, log, portal, skip_reply=True)
         if src_event.content.relates_to.rel_type == RelationType.REPLY:
             src_type = KnownChatType.REPLY
             src_message = src_converted.text
@@ -158,7 +161,7 @@ async def matrix_to_kakaotalk(
         mentions_by_user: dict[Long, MentionStruct] = {}
         # Make sure to not create remote mentions for any remote user not in the room
         if parsed.entities:
-            joined_members = set(await intent.get_room_members(room_id))
+            joined_members = set(await portal.main_intent.get_room_members(room_id))
             last_offset = 0
             at = 0
             for mention in sorted(parsed.entities, key=lambda entity: entity.offset):

matrix_appservice_kakaotalk/kt/client/client.py

@@ -46,6 +46,7 @@ from ..types.chat import Chatlog, KnownChatType
 from ..types.chat.attachment import MentionStruct, ReplyAttachment
 from ..types.client.client_session import LoginResult
 from ..types.oauth import OAuthCredential, OAuthInfo
+from ..types.openlink.open_link_type import OpenChannelUserPerm
 from ..types.openlink.open_link_user_info import OpenLinkChannelUserInfo
 from ..types.packet.chat.kickout import KnownKickoutType, KickoutRes
 from ..types.request import (
@@ -126,7 +127,7 @@ class Client:
     @classmethod
     async def register_device(cls, passcode: str, **req: JSON) -> None:
         """Register a (fake) device that will be associated with the provided login credentials."""
-        await cls._api_request_void("register_device", passcode=passcode, is_secret=True, **req)
+        await cls._api_request_void("register_device", passcode=passcode, **req)
 
     @classmethod
     async def login(cls, **req: JSON) -> OAuthCredential:
@@ -135,7 +136,7 @@ class Client:
         Must have first called register_device with these credentials.
         """
         # NOTE Actually returns an auth LoginData, but this only needs an OAuthCredential
-        return await cls._api_request_result(OAuthCredential, "login", is_secret=True, **req)
+        return await cls._api_request_result(OAuthCredential, "login", **req)
 
     # endregion
 
@@ -357,9 +358,6 @@ class Client:
             width=width,
             height=height,
             ext=ext,
-            # Don't log the bytes
-            # TODO Disable logging per-argument, not per-command
-            is_secret=True
         )
 
     async def delete_chat(
@@ -384,6 +382,52 @@ class Client:
             read_until_chat_id=read_until_chat_id.serialize(),
         )
 
+    async def send_perm(
+        self,
+        channel_props: ChannelProps,
+        user_id: Long,
+        perm: OpenChannelUserPerm,
+    ) -> None:
+        return await self._api_user_request_void(
+            "send_perm",
+            channel_props=channel_props.serialize(),
+            user_id=user_id.serialize(),
+            perm=perm,
+        )
+
+    async def set_channel_name(
+        self,
+        channel_props: ChannelProps,
+        name: str,
+    ) -> None:
+        return await self._api_user_request_void(
+            "set_channel_name",
+            channel_props=channel_props.serialize(),
+            name=name,
+        )
+
+    async def set_channel_description(
+        self,
+        channel_props: ChannelProps,
+        description: str,
+    ) -> None:
+        return await self._api_user_request_void(
+            "set_channel_description",
+            channel_props=channel_props.serialize(),
+            description=description,
+        )
+
+    async def set_channel_photo(
+        self,
+        channel_props: ChannelProps,
+        photo_url: str,
+    ) -> None:
+        return await self._api_user_request_void(
+            "set_channel_photo",
+            channel_props=channel_props.serialize(),
+            photo_url=photo_url,
+        )
+
 
     # TODO Combine these into one
 
@@ -416,15 +460,15 @@ class Client:
 
     # region listeners
 
-    async def _on_chat(self, data: dict[str, JSON]) -> None:
-        await self.user.on_chat(
+    def _on_chat(self, data: dict[str, JSON]) -> Awaitable[None]:
+        return self.user.on_chat(
             Chatlog.deserialize(data["chatlog"]),
             Long.deserialize(data["channelId"]),
             str(data["channelType"]),
         )
 
-    async def _on_chat_deleted(self, data: dict[str, JSON]) -> None:
-        await self.user.on_chat_deleted(
+    def _on_chat_deleted(self, data: dict[str, JSON]) -> Awaitable[None]:
+        return self.user.on_chat_deleted(
             Long.deserialize(data["chatId"]),
             Long.deserialize(data["senderId"]),
             int(data["timestamp"]),
@@ -432,68 +476,83 @@ class Client:
             str(data["channelType"]),
         )
 
-    async def _on_chat_read(self, data: dict[str, JSON]) -> None:
-        await self.user.on_chat_read(
+    def _on_chat_read(self, data: dict[str, JSON]) -> Awaitable[None]:
+        return self.user.on_chat_read(
             Long.deserialize(data["chatId"]),
             Long.deserialize(data["senderId"]),
             Long.deserialize(data["channelId"]),
             str(data["channelType"]),
         )
 
-    async def _on_profile_changed(self, data: dict[str, JSON]) -> None:
-        await self.user.on_profile_changed(
+    def _on_profile_changed(self, data: dict[str, JSON]) -> Awaitable[None]:
+        return self.user.on_profile_changed(
             OpenLinkChannelUserInfo.deserialize(data["info"]),
         )
 
-    async def _on_channel_join(self, data: dict[str, JSON]) -> None:
-        await self.user.on_channel_join(
-            ChannelInfo.deserialize(data["channelInfo"]),
-        )
-
-    async def _on_channel_left(self, data: dict[str, JSON]) -> None:
-        await self.user.on_channel_left(
+    def _on_perm_changed(self, data: dict[str, JSON]) -> Awaitable[None]:
+        return self.user.on_perm_changed(
+            Long.deserialize(data["userId"]),
+            OpenChannelUserPerm(data["perm"]),
             Long.deserialize(data["channelId"]),
             str(data["channelType"]),
         )
 
-    async def _on_channel_kicked(self, data: dict[str, JSON]) -> None:
-        await self.user.on_channel_kicked(
+    def _on_channel_join(self, data: dict[str, JSON]) -> Awaitable[None]:
+        return self.user.on_channel_join(
+            ChannelInfo.deserialize(data["channelInfo"]),
+        )
+
+    def _on_channel_left(self, data: dict[str, JSON]) -> Awaitable[None]:
+        return self.user.on_channel_left(
+            Long.deserialize(data["channelId"]),
+            str(data["channelType"]),
+        )
+
+    def _on_channel_kicked(self, data: dict[str, JSON]) -> Awaitable[None]:
+        return self.user.on_channel_kicked(
             Long.deserialize(data["userId"]),
             Long.deserialize(data["senderId"]),
             Long.deserialize(data["channelId"]),
             str(data["channelType"]),
         )
 
-    async def _on_user_join(self, data: dict[str, JSON]) -> None:
-        await self.user.on_user_join(
+    def _on_user_join(self, data: dict[str, JSON]) -> Awaitable[None]:
+        return self.user.on_user_join(
             Long.deserialize(data["userId"]),
             Long.deserialize(data["channelId"]),
             str(data["channelType"]),
         )
 
-    async def _on_user_left(self, data: dict[str, JSON]) -> None:
-        await self.user.on_user_left(
+    def _on_user_left(self, data: dict[str, JSON]) -> Awaitable[None]:
+        return self.user.on_user_left(
             Long.deserialize(data["userId"]),
             Long.deserialize(data["channelId"]),
             str(data["channelType"]),
         )
 
+    def _on_channel_meta_change(self, data: dict[str, JSON]) -> Awaitable[None]:
+        return self.user.on_channel_meta_change(
+            PortalChannelInfo.deserialize(data["info"]),
+            Long.deserialize(data["channelId"]),
+            str(data["channelType"]),
+        )
 
-    async def _on_listen_disconnect(self, data: dict[str, JSON]) -> None:
+
+    def _on_listen_disconnect(self, data: dict[str, JSON]) -> Awaitable[None]:
         try:
             res = KickoutRes.deserialize(data)
         except Exception:
             self.log.exception("Invalid kickout reason, defaulting to None")
             res = None
-        await self._on_disconnect(res)
+        return self._on_disconnect(res)
 
-    async def _on_switch_server(self) -> None:
+    def _on_switch_server(self) -> Awaitable[None]:
         # TODO Reconnect automatically instead
-        await self._on_disconnect(KickoutRes(KnownKickoutType.CHANGE_SERVER))
+        return self._on_disconnect(KickoutRes(KnownKickoutType.CHANGE_SERVER))
 
-    async def _on_disconnect(self, res: KickoutRes | None) -> None:
+    def _on_disconnect(self, res: KickoutRes | None) -> Awaitable[None]:
         self._stop_listen()
-        await self.user.on_disconnect(res)
+        return self.user.on_disconnect(res)
 
     def _on_error(self, data: dict[str, JSON]) -> Awaitable[None]:
         return self.user.on_error(data)
@@ -504,11 +563,13 @@ class Client:
         self._add_event_handler("chat_deleted", self._on_chat_deleted)
         self._add_event_handler("chat_read", self._on_chat_read)
         self._add_event_handler("profile_changed", self._on_profile_changed)
+        self._add_event_handler("perm_changed", self._on_perm_changed)
         self._add_event_handler("channel_join", self._on_channel_join)
         self._add_event_handler("channel_left", self._on_channel_left)
         self._add_event_handler("channel_kicked", self._on_channel_kicked)
         self._add_event_handler("user_join", self._on_user_join)
         self._add_event_handler("user_left", self._on_user_left)
+        self._add_event_handler("channel_meta_change", self._on_channel_meta_change)
         self._add_event_handler("disconnected", self._on_listen_disconnect)
         self._add_event_handler("switch_server", self._on_switch_server)
         self._add_event_handler("error", self._on_error)

matrix_appservice_kakaotalk/kt/client/types.py

@@ -32,6 +32,7 @@ from ..types.channel.channel_info import NormalChannelInfo
 from ..types.channel.channel_type import ChannelType
 from ..types.chat import KnownChatType
 from ..types.openlink.open_channel_info import OpenChannelInfo
+from ..types.openlink.open_link_type import OpenChannelUserPerm
 from ..types.user.channel_user_info import NormalChannelUserInfo, OpenChannelUserInfo
 
 
@@ -68,8 +69,9 @@ setattr(UserInfoUnion, "deserialize", deserialize_user_info_union)
 @dataclass
 class PortalChannelInfo(SerializableAttrs):
     name: str
-    participants: list[UserInfoUnion]
-    # TODO Image
+    description: Optional[str] = None
+    photoURL: Optional[str] = None
+    participants: Optional[list[UserInfoUnion]] = None # May set to None to skip participant update
     channel_info: Optional[ChannelInfoUnion] = None # Should be set manually by caller
 
 
@@ -91,3 +93,25 @@ TO_MSGTYPE_MAP: dict[MessageType, KnownChatType] = {
 
 # https://stackoverflow.com/a/483833
 FROM_MSGTYPE_MAP: dict[KnownChatType, MessageType] = {v: k for k, v in TO_MSGTYPE_MAP.items()}
+
+
+# TODO Consider allowing custom power/perm mappings
+
+FROM_PERM_MAP: dict[OpenChannelUserPerm, int] = {
+    OpenChannelUserPerm.OWNER: 100,
+    OpenChannelUserPerm.MANAGER: 50,
+    # TODO Decide on an appropriate value for this
+    #OpenChannelUserPerm.BOT: 101,
+    # NOTE Intentionally skipping OpenChannelUserPerm.NONE
+}
+
+# NOTE Using a class to make it look like a dict
+class TO_PERM_MAP:
+    @staticmethod
+    def get(key: int, default: Optional[OpenChannelUserPerm] = None) -> OpenChannelUserPerm:
+        if key >= 100:
+            return OpenChannelUserPerm.OWNER
+        elif key >= 50:
+            return OpenChannelUserPerm.MANAGER
+        else:
+            return default or OpenChannelUserPerm.NONE

matrix_appservice_kakaotalk/matrix.py

@@ -26,6 +26,7 @@ from mautrix.types import (
     RedactionEvent,
     RoomID,
     SingleReceiptEventContent,
+    StateEvent,
     UserID,
 )
 
@@ -135,7 +136,7 @@ class MatrixHandler(BaseMatrixHandler):
             )
             return
         user = await u.User.get_by_mxid(user_id)
-        if not user:
+        if not user or not user.is_connected:
             return
 
         portal = await po.Portal.get_by_mxid(room_id)
@@ -175,3 +176,15 @@ class MatrixHandler(BaseMatrixHandler):
             evt: ReactionEvent
             await self.handle_reaction(evt.room_id, evt.sender, evt.event_id, evt.content)
         """
+
+    async def handle_state_event(self, evt: StateEvent) -> None:
+        if po.Portal.supports_state_event(evt.type):
+            user = await u.User.get_by_mxid(evt.sender)
+            if not user:
+                return
+
+            portal = await po.Portal.get_by_mxid(evt.room_id)
+            if not portal:
+                return
+
+            await portal.handle_matrix_state_event(user, evt)

matrix_appservice_kakaotalk/portal.py

@@ -20,6 +20,8 @@ from typing import (
     Any,
     AsyncGenerator,
     Awaitable,
+    Callable,
+    NamedTuple,
     Pattern,
     cast,
 )
@@ -48,8 +50,14 @@ from mautrix.types import (
     Membership,
     MessageEventContent,
     MessageType,
+    PowerLevelStateEventContent,
+    RoomAvatarStateEventContent,
+    RoomNameStateEventContent,
+    RoomTopicStateEventContent,
     RelationType,
     RoomID,
+    StateEvent,
+    StateEventContent,
     TextMessageEventContent,
     UserID,
     VideoInfo,
@@ -80,12 +88,16 @@ from .kt.types.chat.attachment import (
     ReplyAttachment,
     VideoAttachment,
 )
+from .kt.types.user.channel_user_info import OpenChannelUserInfo
+from .kt.types.openlink.open_link_type import OpenChannelUserPerm
 
 from .kt.client.types import (
     UserInfoUnion,
     PortalChannelInfo,
     ChannelProps,
     TO_MSGTYPE_MAP,
+    FROM_PERM_MAP,
+    TO_PERM_MAP,
 )
 from .kt.client.errors import CommandException
 
@@ -113,6 +125,14 @@ class FakeLock:
         pass
 
 
+class StateEventHandler(NamedTuple):
+    # TODO Can this use Generic to force the two StateEventContent parameters to be of the same type?
+    #      Or, just have a single StateEvent parameter
+    apply: Callable[[u.User, StateEventContent, StateEventContent], Awaitable[None]]
+    revert: Callable[[StateEventContent], Awaitable[None]]
+    action_name: str
+
+
 StateBridge = EventType.find("m.bridge", EventType.Class.STATE)
 StateHalfShotBridge = EventType.find("uk.half-shot.bridge", EventType.Class.STATE)
 
@@ -142,10 +162,12 @@ class Portal(DBPortal, BasePortal):
         kt_type: ChannelType,
         mxid: RoomID | None = None,
         name: str | None = None,
+        description: str | None = None,
         photo_id: str | None = None,
         avatar_url: ContentURI | None = None,
         encrypted: bool = False,
         name_set: bool = False,
+        topic_set: bool = False,
         avatar_set: bool = False,
         relay_user_id: UserID | None = None,
     ) -> None:
@@ -155,10 +177,12 @@ class Portal(DBPortal, BasePortal):
             kt_type,
             mxid,
             name,
+            description,
             photo_id,
             avatar_url,
             encrypted,
             name_set,
+            topic_set,
             avatar_set,
             relay_user_id,
         )
@@ -190,8 +214,7 @@ class Portal(DBPortal, BasePortal):
         NotificationDisabler.puppet_cls = p.Puppet
         NotificationDisabler.config_enabled = cls.config["bridge.backfill.disable_notifications"]
 
-        # TODO More
-        cls._chat_type_handler_map = {
+        cls._CHAT_TYPE_HANDLER_MAP = {
             KnownChatType.FEED: cls._handle_kakaotalk_feed,
             KnownChatType.TEXT: cls._handle_kakaotalk_text,
             KnownChatType.REPLY: cls._handle_kakaotalk_reply,
@@ -203,6 +226,33 @@ class Portal(DBPortal, BasePortal):
             16385: cls._handle_kakaotalk_deleted,
         }
 
+        cls._STATE_EVENT_HANDLER_MAP: dict[EventType, StateEventHandler] = {
+            EventType.ROOM_POWER_LEVELS: StateEventHandler(
+                cls._handle_matrix_power_levels,
+                cls._revert_matrix_power_levels,
+                "power level"
+            ),
+            EventType.ROOM_NAME: StateEventHandler(
+                cls._handle_matrix_room_name,
+                cls._revert_matrix_room_name,
+                "room name"
+            ),
+            EventType.ROOM_TOPIC: StateEventHandler(
+                cls._handle_matrix_room_topic,
+                cls._revert_matrix_room_topic,
+                "room topic"
+            ),
+            EventType.ROOM_AVATAR: StateEventHandler(
+                cls._handle_matrix_room_avatar,
+                cls._revert_matrix_room_avatar,
+                "room avatar"
+            ),
+        }
+
+    @classmethod
+    def supports_state_event(cls, evt_type: EventType) -> bool:
+        return evt_type in cls._STATE_EVENT_HANDLER_MAP
+
     # region DB conversion
 
     async def delete(self) -> None:
@@ -234,6 +284,10 @@ class Portal(DBPortal, BasePortal):
     def is_direct(self) -> bool:
         return KnownChannelType.is_direct(self.kt_type)
 
+    @property
+    def is_open(self) -> bool:
+        return KnownChannelType.is_open(self.kt_type)
+
     @property
     def kt_sender(self) -> int | None:
         if self.is_direct:
@@ -309,16 +363,57 @@ class Portal(DBPortal, BasePortal):
             changed = any(
                 await asyncio.gather(
                     self._update_name(info.name),
-                    # TODO
-                    #self._update_photo(source, info.image),
+                    self._update_description(info.description),
+                    self._update_photo(source, info.photoURL),
                 )
             )
-        changed = await self._update_participants(source, info.participants) or changed
+        if info.participants is not None:
+            changed = await self._update_participants(source, info.participants) or changed
+            if self.mxid and self.is_open:
+                user_power_levels = await self._get_mapped_participant_power_levels(info.participants, skip_default=False)
+                asyncio.create_task(self.set_power_levels(user_power_levels))
         if changed or force_save:
             await self.update_bridge_info()
             await self.save()
         return info
 
+    async def _get_mapped_participant_power_levels(self, participants: list[UserInfoUnion], skip_default: bool) -> dict[UserID, int]:
+        user_power_levels: dict[UserID, int] = {}
+        default_value = None if skip_default else 0
+        for participant in participants:
+            if not isinstance(participant, OpenChannelUserInfo):
+                self.log.warning(f"Info object for participant {participant.userId} of open channel is not an OpenChannelUserInfo")
+                continue
+            power_level = FROM_PERM_MAP.get(participant.perm, default_value)
+            if power_level is None:
+                continue
+            await self.update_mapped_ktid_power_levels(user_power_levels, participant.userId, power_level)
+        return user_power_levels
+
+    @staticmethod
+    async def update_mapped_ktid_power_levels(user_power_levels: dict[UserID, int], ktid: int, power_level: int) -> None:
+        user = await u.User.get_by_ktid(ktid)
+        if user:
+            user_power_levels[user.mxid] = power_level
+        puppet = await p.Puppet.get_by_ktid(ktid)
+        if puppet:
+            user_power_levels[puppet.mxid] = power_level
+
+    async def set_power_levels(self, user_power_levels: dict[UserID, int]) -> None:
+        if self.mxid and user_power_levels:
+            changed = False
+            power_levels = await self.main_intent.get_power_levels(self.mxid)
+            for user, power_level in user_power_levels.items():
+                changed = power_levels.ensure_user_level(user, power_level) or changed
+            if changed:
+                await self.main_intent.set_power_levels(self.mxid, power_levels)
+
+    @staticmethod
+    async def get_mapped_ktid_power_levels(ktid: int, power_level: int) -> dict[UserID, int]:
+        user_power_levels: dict[UserID, int] = {}
+        await Portal.update_mapped_ktid_power_levels(user_power_levels, ktid, power_level)
+        return user_power_levels
+
     @classmethod
     async def _reupload_kakaotalk_file(
         cls,
@@ -386,23 +481,37 @@ class Portal(DBPortal, BasePortal):
             return True
         return False
 
-    """
-    async def _update_photo(self, source: u.User, photo: graphql.Picture) -> bool:
+    async def _update_description(self, description: str | None) -> bool:
+        if self.description != description or not self.topic_set:
+            self.log.trace("Updating description %s -> %s", self.description, description)
+            self.description = description
+            if self.mxid and (self.encrypted or not self.is_direct):
+                try:
+                    await self.main_intent.set_room_topic(self.mxid, self.description)
+                    self.topic_set = True
+                except Exception:
+                    self.log.exception("Failed to set room description")
+                    self.topic_set = False
+            return True
+        return False
+
+    async def _update_photo(self, source: u.User, photo_id: str | None) -> bool:
         if self.is_direct and not self.encrypted:
             return False
-        photo_id = self.get_photo_id(photo)
+        if self.photo_id is not None and photo_id is None:
+            self.log.warning("Portal previously had a photo_id, but new photo_id is None. Leaving it as it is")
+            return False
         if self.photo_id != photo_id or not self.avatar_set:
             self.photo_id = photo_id
-            if photo:
+            if photo_id:
                 if self.photo_id != photo_id or not self.avatar_url:
                     # Reset avatar_url first in case the upload fails
                     self.avatar_url = None
                     self.avatar_url = await p.Puppet.reupload_avatar(
                         source,
                         self.main_intent,
-                        photo.uri,
+                        photo_id,
                         self.ktid,
-                        use_graph=self.is_direct and (photo.height or 0) < 500,
                     )
             else:
                 self.avatar_url = ContentURI("")
@@ -415,7 +524,6 @@ class Portal(DBPortal, BasePortal):
                     self.avatar_set = False
             return True
         return False
-    """
 
     async def _update_photo_from_puppet(self, puppet: p.Puppet) -> bool:
         if self.photo_id == puppet.photo_id and self.avatar_set:
@@ -632,7 +740,8 @@ class Portal(DBPortal, BasePortal):
                 "content": self.bridge_info,
             },
         ]
-        if KnownChannelType.is_open(info.channel_info.type):
+
+        if self.is_open:
             initial_state.extend((
                 {
                     "type": str(EventType.ROOM_JOIN_RULES),
@@ -643,6 +752,15 @@ class Portal(DBPortal, BasePortal):
                     "content": {"guest_access": "forbidden"},
                 },
             ))
+            user_power_levels = await self._get_mapped_participant_power_levels(info.participants, skip_default=True)
+            user_power_levels[self.main_intent.mxid] = 1 + FROM_PERM_MAP.get(OpenChannelUserPerm.OWNER)
+            initial_state.append(
+                {
+                    "type": str(EventType.ROOM_POWER_LEVELS),
+                    "content": PowerLevelStateEventContent(users=user_power_levels).serialize()
+                }
+            )
+
         invites = []
         if self.config["bridge.encryption.default"] and self.matrix.e2ee:
             self.encrypted = True
@@ -809,7 +927,7 @@ class Portal(DBPortal, BasePortal):
     async def _send_chat(
         self, sender: u.User, message: TextMessageEventContent, event_id: EventID | None = None
     ) -> Long:
-        converted = await matrix_to_kakaotalk(message, self.mxid, self.log, self.main_intent)
+        converted = await matrix_to_kakaotalk(message, self.mxid, self.log, self)
         try:
             return await sender.client.send_chat(
                 self.channel_props,
@@ -930,6 +1048,8 @@ class Portal(DBPortal, BasePortal):
         sender, _ = await self.get_relay_sender(sender, f"redaction {event_id}")
         if not sender:
             raise Exception("not logged in")
+        elif not sender.is_connected:
+            raise Exception("not connected to KakaoTalk chats")
         message = await DBMessage.get_by_mxid(event_id, self.mxid)
         if message:
             if not message.ktid:
@@ -965,6 +1085,131 @@ class Portal(DBPortal, BasePortal):
         pass
     """
 
+    async def handle_matrix_state_event(self, sender: u.User, evt: StateEvent) -> None:
+        try:
+            handler: StateEventHandler = self._STATE_EVENT_HANDLER_MAP[evt.type]
+        except KeyError:
+            # Misses should be guarded by supports_state_event, but handle this just in case
+            self.log.error(f"Skipping Matrix state event {evt.event_id} of unsupported type {evt.type}")
+            return
+        try:
+            effective_sender, _ = await self.get_relay_sender(sender, f"{handler.action_name} {evt.event_id}")
+            await handler.apply(self, effective_sender, evt.prev_content, evt.content)
+        except Exception as e:
+            self.log.error(
+                f"Failed to handle Matrix {handler.action_name} {evt.event_id}: {e}",
+                exc_info=not isinstance(e, NotImplementedError),
+            )
+            sender.send_remote_checkpoint(
+                self._status_from_exception(e),
+                evt.event_id,
+                self.mxid,
+                evt.type,
+                error=e,
+            )
+            change = f"{handler.action_name} change"
+            await self._send_bridge_error(
+                f"{e}. Reverting the {change}...",
+                thing=change
+            )
+            # NOTE Redacting instead doesn't work
+            await handler.revert(self, evt.prev_content)
+        else:
+            await self._send_delivery_receipt(evt.event_id)
+            sender.send_remote_checkpoint(
+                MessageSendCheckpointStatus.SUCCESS,
+                evt.event_id,
+                self.mxid,
+                evt.type,
+            )
+
+    async def _handle_matrix_power_levels(
+        self,
+        sender: u.User,
+        prev_content: PowerLevelStateEventContent,
+        content: PowerLevelStateEventContent,
+    ) -> None:
+        for target_mxid, power_level in content.users.items():
+            if power_level == prev_content.get_user_level(target_mxid):
+                continue
+            puppet = await p.Puppet.get_by_mxid(target_mxid)
+            if puppet:
+                if sender and sender.is_connected:
+                    perm = TO_PERM_MAP.get(power_level)
+                    await sender.client.send_perm(self.channel_props, puppet.ktid, perm)
+                else:
+                    raise Exception(
+                        "Only users connected to KakaoTalk can set power levels of KakaoTalk users"
+                    )
+
+    async def _revert_matrix_power_levels(self, prev_content: PowerLevelStateEventContent) -> None:
+        await self.main_intent.set_power_levels(self.mxid, prev_content)
+
+    async def _handle_matrix_room_name(
+        self,
+        sender: u.User,
+        prev_content: RoomNameStateEventContent,
+        content: RoomNameStateEventContent,
+    ) -> None:
+        if content.name == prev_content.name:
+            return
+        if not (sender and sender.is_connected):
+            raise Exception(
+                "Only users connected to KakaoTalk can set the name of a KakaoTalk channel"
+            )
+        await sender.client.set_channel_name(self.channel_props, content.name)
+        self.name = content.name
+        self.name_set = True
+        await self.save()
+
+    async def _revert_matrix_room_name(self, prev_content: RoomNameStateEventContent) -> None:
+        await self.main_intent.set_room_name(self.mxid, prev_content.name)
+
+    async def _handle_matrix_room_topic(
+        self,
+        sender: u.User,
+        prev_content: RoomTopicStateEventContent,
+        content: RoomTopicStateEventContent,
+    ) -> None:
+        if content.topic == prev_content.topic:
+            return
+        if not (sender and sender.is_connected):
+            raise Exception(
+                "Only users connected to KakaoTalk can set the description of a KakaoTalk channel"
+            )
+        await sender.client.set_channel_description(self.channel_props, content.topic)
+        self.description = content.topic
+        self.topic_set = True
+        await self.save()
+
+    async def _revert_matrix_room_topic(self, prev_content: RoomTopicStateEventContent) -> None:
+        await self.main_intent.set_room_topic(self.mxid, prev_content.topic)
+
+    async def _handle_matrix_room_avatar(
+        self,
+        sender: u.User,
+        prev_content: RoomAvatarStateEventContent,
+        content: RoomAvatarStateEventContent,
+    ) -> None:
+        if content.url == prev_content.url:
+            return
+        if not (sender and sender.is_connected):
+            raise Exception(
+                "Only users connected to KakaoTalk can set the photo of a KakaoTalk channel"
+            )
+        raise NotImplementedError("Changing the room avatar is not supported by the KakaoTalk bridge.")
+        """ TODO
+        photo_url = str(self.main_intent.api.get_download_url(content.url))
+        await sender.client.set_channel_photo(self.channel_props, photo_url)
+        self.photo_id = photo_url
+        self.avatar_url = content.url
+        self.avatar_set = True
+        await self.save()
+        """
+
+    async def _revert_matrix_room_avatar(self, prev_content: RoomAvatarStateEventContent) -> None:
+        await self.main_intent.set_room_avatar(self.mxid, prev_content.url)
+
     async def handle_matrix_leave(self, user: u.User) -> None:
         if self.is_direct:
             self.log.info(f"{user.mxid} left private chat portal with {self.ktid}")
@@ -1067,7 +1312,7 @@ class Portal(DBPortal, BasePortal):
             await intent.ensure_joined(self.mxid)
             self._backfill_leave.add(intent)
 
-        handler = self._chat_type_handler_map.get(chat.type, Portal._handle_kakaotalk_unsupported)
+        handler = self._CHAT_TYPE_HANDLER_MAP.get(chat.type, Portal._handle_kakaotalk_unsupported)
         event_ids = [
             event_id for event_id in 
             await handler(

matrix_appservice_kakaotalk/rpc/rpc.py

@@ -166,6 +166,8 @@ class RPCClient:
         self._on_disconnect()
 
     def _on_disconnect(self) -> None:
+        self._req_id = 0
+        self._min_broadcast_id = 0
         self._reader = None
         self._writer = None
         self._is_connected.clear()
@@ -293,11 +295,11 @@ class RPCClient:
             except:
                 self.log.exception("Failed to handle incoming request %s", line_str)
 
-    async def _raw_request(self, command: str, is_secret: bool = False, **data: JSON) -> asyncio.Future[JSON]:
+    async def _raw_request(self, command: str, **data: JSON) -> asyncio.Future[JSON]:
         req_id = self._next_req_id
         future = self._response_waiters[req_id] = self.loop.create_future()
         req = {"id": req_id, "command": command, **data}
-        self.log.debug("Request %d: %s %s", req_id, command, data if not is_secret else "<REDACTED>")
+        self.log.debug("Request %d: %s", req_id, command)
         assert self._writer is not None
         self._writer.write(json.dumps(req).encode("utf-8"))
         self._writer.write(b"\n")

matrix_appservice_kakaotalk/user.py

@@ -39,7 +39,7 @@ from .db import User as DBUser
 
 from .kt.client import Client
 from .kt.client.errors import AuthenticationRequired, ResponseError
-from .kt.client.types import SettingsStruct
+from .kt.client.types import PortalChannelInfo, SettingsStruct, FROM_PERM_MAP
 from .kt.types.bson import Long
 from .kt.types.channel.channel_info import ChannelInfo, NormalChannelInfo, NormalChannelData
 from .kt.types.channel.channel_type import ChannelType, KnownChannelType
@@ -47,6 +47,7 @@ from .kt.types.chat.chat import Chatlog
 from .kt.types.client.client_session import LoginDataItem, LoginResult
 from .kt.types.oauth import OAuthCredential
 from .kt.types.openlink.open_channel_info import OpenChannelData, OpenChannelInfo
+from .kt.types.openlink.open_link_type import OpenChannelUserPerm
 from .kt.types.openlink.open_link_user_info import OpenLinkChannelUserInfo
 from .kt.types.packet.chat.kickout import KnownKickoutType, KickoutRes
 
@@ -54,7 +55,9 @@ METRIC_CONNECT_AND_SYNC = Summary("bridge_connect_and_sync", "calls to connect_a
 METRIC_CHAT = Summary("bridge_on_chat", "calls to on_chat")
 METRIC_CHAT_DELETED = Summary("bridge_on_chat_deleted", "calls to on_chat_deleted")
 METRIC_CHAT_READ = Summary("bridge_on_chat_read", "calls to on_chat_read")
+METRIC_CHANNEL_META_CHANGE = Summary("bridge_on_channel_meta_change", "calls to on_channel_meta_change")
 METRIC_PROFILE_CHANGE = Summary("bridge_on_profile_changed", "calls to on_profile_changed")
+METRIC_PERM_CHANGE = Summary("bridge_on_perm_changed", "calls to on_perm_changed")
 METRIC_CHANNEL_JOIN = Summary("bridge_on_channel_join", "calls to on_channel_join")
 METRIC_CHANNEL_LEFT = Summary("bridge_on_channel_left", "calls to on_channel_left")
 METRIC_CHANNEL_KICKED = Summary("bridge_on_channel_kicked", "calls to on_channel_kicked")
@@ -739,12 +742,46 @@ class User(DBUser, BaseUser):
             await portal.backfill_lock.wait(f"read receipt from {sender_id}")
             await portal.handle_kakaotalk_chat_read(self, puppet, chat_id)
 
+    @async_time(METRIC_CHANNEL_META_CHANGE)
+    async def on_channel_meta_change(
+        self,
+        info: PortalChannelInfo,
+        channel_id: Long,
+        channel_type: ChannelType,
+    ) -> None:
+        portal = await po.Portal.get_by_ktid(
+            channel_id,
+            kt_receiver=self.ktid,
+            kt_type=channel_type,
+        )
+        if portal:
+            await portal.update_info(self, info)
+
     @async_time(METRIC_PROFILE_CHANGE)
     async def on_profile_changed(self, info: OpenLinkChannelUserInfo) -> None:
         puppet = await pu.Puppet.get_by_ktid(info.userId)
         if puppet:
             await puppet.update_info_from_participant(self, info)
 
+    @async_time(METRIC_PERM_CHANGE)
+    async def on_perm_changed(
+        self,
+        user_id: Long,
+        perm: OpenChannelUserPerm,
+        channel_id: Long,
+        channel_type: ChannelType,
+    ) -> None:
+        portal = await po.Portal.get_by_ktid(
+            channel_id,
+            kt_receiver=self.ktid,
+            kt_type=channel_type,
+            create=False,
+        )
+        if portal and portal.mxid:
+            power_level = FROM_PERM_MAP.get(perm, 0)
+            user_power_levels = await po.Portal.get_mapped_ktid_power_levels(user_id, power_level)
+            await portal.set_power_levels(user_power_levels)
+
     @async_time(METRIC_CHANNEL_JOIN)
     def on_channel_join(self, channel_info: ChannelInfo) -> Awaitable[None]:
         return self._sync_channel(channel_info)

node/src/client.js

@@ -29,6 +29,9 @@ import {
 /** @typedef {import("node-kakao").MentionStruct} MentionStruct */
 /** @typedef {import("node-kakao/dist/talk").TalkChannelList} TalkChannelList */
 
+import pkg from "node-kakao"
+const { OpenChannelUserPerm } = pkg
+
 import chat from "node-kakao/chat"
 const { KnownChatType } = chat
 
@@ -58,6 +61,34 @@ ServiceApiClient.prototype.requestFriendList = async function() {
 }
 
 
+class CustomError extends Error {}
+
+class PermError extends CustomError {
+	/** @type {Map<OpenChannelUserPerm, string> */
+	static #PERM_NAMES = new Map([
+		[OpenChannelUserPerm.OWNER, "the channel owner"],
+		[OpenChannelUserPerm.MANAGER, "channel admininstrators"],
+		[OpenChannelUserPerm.BOT, "bots"],
+		[OpenChannelUserPerm.NONE, "registered KakaoTalk users"],
+	])
+
+	/**
+	 * @param {?OpenChannelUserPerm[]} permNeeded
+	 * @param {?OpenChannelUserPerm} permActual
+	 */
+	constructor(permNeeded, permActual, action) {
+		const who =
+			!permActual
+			? "In this channel, no one"
+			: "Only " + permNeeded
+				.map(v => PermError.#PERM_NAMES.get(v))
+				.reduce((prev, curr) => prev += ` and ${curr}`)
+		super(`${who} can ${action}`)
+		this.name = this.constructor.name
+	}
+}
+
+
 class UserClient {
 	static #initializing = false
 
@@ -70,21 +101,23 @@ class UserClient {
 
 	/**
 	 * DO NOT CONSTRUCT DIRECTLY. Callers should use {@link UserClient#create} instead.
+	 * @param {Long} userId
 	 * @param {string} mxid
 	 * @param {PeerClient} peerClient TODO Make RPC user-specific instead of needing this
 	 */
-	constructor(mxid, peerClient) {
+	constructor(userId, mxid, peerClient) {
 		if (!UserClient.#initializing) {
 			throw new Error("Private constructor")
 		}
 		UserClient.#initializing = false
 
+		this.userId = userId
 		this.mxid = mxid
 		this.peerClient = peerClient
 
 		this.#talkClient.on("chat", (data, channel) => {
 			this.log(`${data.chat.logId} received in channel ${channel.channelId}`)
-			return this.write("chat", {
+			this.write("chat", {
 				//is_sequential: true, // TODO Make sequential per user & channel (if it isn't already)
 				chatlog: data.chat,
 				channelId: channel.channelId,
@@ -94,7 +127,7 @@ class UserClient {
 
 		this.#talkClient.on("chat_deleted", (feedChatlog, channel, feed) => {
 			this.log(`${feed.logId} deleted in channel ${channel.channelId} by user ${feedChatlog.sender.userId}`)
-			return this.write("chat_deleted", {
+			this.write("chat_deleted", {
 				chatId: feed.logId,
 				senderId: feedChatlog.sender.userId,
 				timestamp: feedChatlog.sendAt,
@@ -105,7 +138,7 @@ class UserClient {
 
 		this.#talkClient.on("message_hidden", (hideLog, channel, feed) => {
 			this.log(`Message ${feed.logId} hid from channel ${channel.channelId} by user ${hideLog.sender.userId}`)
-			return this.write("chat_deleted", {
+			this.write("chat_deleted", {
 				chatId: feed.logId,
 				senderId: hideLog.sender.userId,
 				timestamp: hideLog.sendAt,
@@ -116,7 +149,7 @@ class UserClient {
 
 		this.#talkClient.on("chat_read", (chat, channel, reader) => {
 			this.log(`${chat.logId} read in channel ${channel.channelId} by ${reader.userId}`)
-			return this.write("chat_read", {
+			this.write("chat_read", {
 				chatId: chat.logId,
 				senderId: reader.userId,
 				channelId: channel.channelId,
@@ -126,7 +159,7 @@ class UserClient {
 
 		this.#talkClient.on("profile_changed", (channel, lastInfo, user) => {
 			this.log(`Profile of ${user.userId} changed (channel: ${channel ? channel.channelId : "None"})`)
-			return this.write("profile_changed", {
+			this.write("profile_changed", {
 				info: user,
 				/* TODO Is this ever a per-channel profile change?
 				channelId: channel.channelId,
@@ -135,16 +168,28 @@ class UserClient {
 			})
 		})
 
+		this.#talkClient.on("perm_changed", (channel, lastInfo, user) => {
+			// TODO Fix the type hint on lastInfo and user: they should each be a OpenChannelUserInfo, not just a ChannelUserInfo
+			this.log(`Perms of user ${user.userId} in channel ${channel.channelId} changed from ${lastInfo.perm} to ${user.perm}`)
+			this.write("perm_changed", {
+				is_sequential: true,
+				userId: user.userId,
+				perm: user.perm,
+				channelId: channel.channelId,
+				channelType: channel.info.type,
+			})
+		})
+
 		this.#talkClient.on("channel_join", channel => {
 			this.log(`Joined channel ${channel.channelId}`)
-			return this.write("channel_join", {
+			this.write("channel_join", {
 				channelInfo: channel.info,
 			})
 		})
 
 		this.#talkClient.on("channel_left", channel => {
 			this.log(`Left channel ${channel.channelId}`)
-			return this.write("channel_left", {
+			this.write("channel_left", {
 				channelId: channel.channelId,
 				channelType: channel.info.type,
 			})
@@ -152,7 +197,7 @@ class UserClient {
 
 		this.#talkClient.on("channel_kicked", (kickedLog, channel, feed) => {
 			this.log(`User ${feed.member.userId} kicked from channel ${channel.channelId} by user ${kickedLog.sender.userId}`)
-			return this.write("channel_kicked", {
+			this.write("channel_kicked", {
 				userId: feed.member.userId,
 				senderId: kickedLog.sender.userId,
 				channelId: channel.channelId,
@@ -162,7 +207,7 @@ class UserClient {
 
 		this.#talkClient.on("user_join", (joinLog, channel, user, feed) => {
 			this.log(`User ${user.userId} joined channel ${channel.channelId}`)
-			return this.write("user_join", {
+			this.write("user_join", {
 				userId: user.userId,
 				channelId: channel.channelId,
 				channelType: channel.info.type,
@@ -171,31 +216,58 @@ class UserClient {
 
 		this.#talkClient.on("user_left", (leftLog, channel, user, feed) => {
 			this.log(`User ${user.userId} left channel ${channel.channelId}`)
-			return this.write("user_left", {
+			this.write("user_left", {
 				userId: user.userId,
 				channelId: channel.channelId,
 				channelType: channel.info.type,
 			})
 		})
 
+		this.#talkClient.on("meta_change", (channel, type, newMeta) => {
+			this.log(`Channel ${channel.channelId} metadata changed`)
+		})
+
+		this.#talkClient.on("push_packet", (method, data) => {
+			// TODO Find a better way to do this...but data doesn't have much.
+			if (method == "SYNCLINKUP") {
+				if (!data?.ol) return
+				const linkURL = data.ol?.lu
+				if (!linkURL) return
+				for (const channel of this.#talkClient.channelList.open.all()) {
+					if (channel.info.openLink?.linkURL == linkURL) {
+						this.write("channel_meta_change", {
+							info: {
+								name: data.ol?.ln,
+								description: data.ol?.desc || null,
+								photoURL: data.ol?.liu || null,
+							},
+							channelId: channel.channelId,
+							channelType: channel.info.type,
+						})
+						break
+					}
+				}
+			}
+		})
+
 		this.#talkClient.on("disconnected", (reason) => {
 			this.log(`Disconnected (reason=${reason})`)
 			this.disconnect()
-			return this.write("disconnected", {
+			this.write("disconnected", {
 				reason: reason,
 			})
 		})
 
 		this.#talkClient.on("switch_server", () => {
 			this.log(`Server switch requested`)
-			return this.write("switch_server", {
+			this.write("switch_server", {
 				is_sequential: true,
 			})
 		})
 
 		this.#talkClient.on("error", (err) => {
 			this.log(`Client error: ${err}`)
-			return this.write("error", {
+			this.write("error", {
 				error: err,
 			})
 		})
@@ -208,7 +280,7 @@ class UserClient {
 	 */
 	static async create(mxid, credential, peerClient) {
 		this.#initializing = true
-		const userClient = new UserClient(mxid, peerClient)
+		const userClient = new UserClient(credential.userId, mxid, peerClient)
 
 		userClient.#serviceClient = await ServiceApiClient.create(credential)
 		return userClient
@@ -438,9 +510,20 @@ export default class PeerClient {
 	/**
 	 * @param {string} mxid
 	 * @param {ChannelProps} channelProps
+	 * @param {?OpenChannelUserPerm[]} permNeeded If set, throw if the user's permission level matches none of the values in this list.
+	 * @param {?string} action The action requiring permission, to be used in an error message if throwing..
+	 * @throws {PermError} if the user does not have the specified permission level.
 	 */
-	async #getUserChannel(mxid, channelProps) {
-		return await this.#getUser(mxid).getChannel(channelProps)
+	async #getUserChannel(mxid, channelProps, permNeeded, action) {
+		const userClient = this.#getUser(mxid)
+		const talkChannel = await userClient.getChannel(channelProps)
+		if (permNeeded) {
+			const permActual = talkChannel.getUserInfo({ userId: userClient.userId }).perm
+			if (permNeeded.indexOf(permActual) == -1) {
+				throw new PermError(permNeeded, permActual, action)
+			}
+		}
+		return talkChannel
 	}
 
 	/**
@@ -555,8 +638,10 @@ export default class PeerClient {
 
 		return makeCommandResult({
 			name: talkChannel.getDisplayName(),
+			description: talkChannel.info.openLink?.description,
+			// TODO Find out why linkCoverURL is blank, despite having updated the channel!
+			photoURL: talkChannel.info.openLink?.linkCoverURL || null,
 			participants: Array.from(talkChannel.getAllUserInfo()),
-			// TODO Image
 		})
 	}
 
@@ -575,13 +660,23 @@ export default class PeerClient {
 	 * @param {string} req.mxid
 	 * @param {ChannelProps} req.channel_props
 	 * @param {?Long} req.sync_from
-	 * @param {?Number} req.limit
+	 * @param {?number} req.limit
 	 */
 	getChats = async (req) => {
 		const talkChannel = await this.#getUserChannel(req.mxid, req.channel_props)
 
 		const res = await talkChannel.getChatListFrom(req.sync_from)
-		if (res.success && 0 < req.limit && req.limit < res.result.length) {
+		if (!res.success) return res
+
+		while (true) {
+			const nextRes = await talkChannel.getChatListFrom(
+				res.result[res.result.length - 1].logId
+			)
+			if (!nextRes.success) return nextRes
+			if (!nextRes.result.length) break
+			res.result.push(...nextRes.result)
+		}
+		if (0 < req.limit && req.limit < res.result.length) {
 			res.result.splice(0, res.result.length - req.limit)
 		}
 		return res
@@ -695,6 +790,74 @@ export default class PeerClient {
 		})
 	}
 
+	/**
+	 * @param {Object} req
+	 * @param {string} req.mxid
+	 * @param {ChannelProps} req.channel_props
+	 * @param {Long} req.user_id
+	 * @param {OpenChannelUserPerm} req.perm
+	 */
+	sendPerm = async (req) => {
+		const talkChannel = await this.#getUserChannel(
+			req.mxid,
+			req.channel_props,
+			[OpenChannelUserPerm.OWNER],
+			"change user permissions"
+		)
+		return await talkChannel.setUserPerm({ userId: req.user_id }, req.perm)
+	}
+
+	/**
+	 * @param {Object} req
+	 * @param {string} req.mxid
+	 * @param {ChannelProps} req.channel_props
+	 * @param {string} req.name
+	 */
+	setChannelName = async (req) => {
+		const talkChannel = await this.#getUserChannel(
+			req.mxid,
+			req.channel_props,
+			[OpenChannelUserPerm.OWNER],
+			"change channel name"
+		)
+		return await talkChannel.setTitleMeta(req.name)
+	}
+
+	/**
+	 * @param {Object} req
+	 * @param {string} req.mxid
+	 * @param {ChannelProps} req.channel_props
+	 * @param {string} req.description
+	 */
+	setChannelDescription = async (req) => {
+		const talkChannel = await this.#getUserChannel(
+			req.mxid,
+			req.channel_props,
+			[OpenChannelUserPerm.OWNER],
+			"change channel description"
+		)
+		return await talkChannel.setNoticeMeta(req.description)
+	}
+
+	/**
+	 * @param {Object} req
+	 * @param {string} req.mxid
+	 * @param {ChannelProps} req.channel_props
+	 * @param {string} req.photo_url
+	 */
+	setChannelPhoto = async (req) => {
+		const talkChannel = await this.#getUserChannel(
+			req.mxid,
+			req.channel_props,
+			[OpenChannelUserPerm.OWNER],
+			"change channel photo"
+		)
+		return await talkChannel.setProfileMeta({
+			imageUrl: req.photo_url,
+			fullImageUrl: req.photo_url,
+		})
+	}
+
 	handleUnknownCommand = () => {
 		throw new Error("Unknown command")
 	}
@@ -773,6 +936,10 @@ export default class PeerClient {
 				send_media: this.sendMedia,
 				delete_chat: this.deleteChat,
 				mark_read: this.markRead,
+				send_perm: this.sendPerm,
+				set_channel_name: this.setChannelName,
+				set_channel_description: this.setChannelDescription,
+				set_channel_photo: this.setChannelPhoto,
 			}[req.command] || this.handleUnknownCommand
 		}
 		const resp = { id: req.id }
@@ -789,7 +956,7 @@ export default class PeerClient {
 				}
 			} else {
 				resp.command = "error"
-				resp.error = err.toString()
+				resp.error = err instanceof CustomError ? err.message : err.toString()
 				this.log(`Error handling request ${resp.id} ${err.stack}`)
 				// TODO Check if session is broken. If it is, close the PeerClient
 			}