commit b57c74eeb6755c774f47279b885c9f5854b7b6cc Author: Andrew Ferrazzutti Date: Fri Feb 25 02:22:50 2022 -0500 Initial commit diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..0b57937 --- /dev/null +++ b/.gitignore @@ -0,0 +1,23 @@ +/.idea/ +/.*project +/.settings/ + +/.venv +/env/ +pip-selfcheck.json +*.pyc +__pycache__ +/build +/dist +/*.egg-info +/.eggs + +profiles +puppet/extension_files + +/config*.yaml +/registration*.yaml +*.log* +*.db +*.pickle +*.bak diff --git a/LICENSE b/LICENSE new file mode 100644 index 0000000..be3f7b2 --- /dev/null +++ b/LICENSE @@ -0,0 +1,661 @@ + GNU AFFERO GENERAL PUBLIC LICENSE + Version 3, 19 November 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU Affero General Public License is a free, copyleft license for +software and other kinds of works, specifically designed to ensure +cooperation with the community in the case of network server software. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. 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There are many ways you could offer source, and different +solutions will be better for different programs; see section 13 for the +specific requirements. + + You should also get your employer (if you work as a programmer) or school, +if any, to sign a "copyright disclaimer" for the program, if necessary. +For more information on this, and how to apply and follow the GNU AGPL, see +. diff --git a/matrix_appservice_kakaotalk/__init__.py b/matrix_appservice_kakaotalk/__init__.py new file mode 100644 index 0000000..e3d360a --- /dev/null +++ b/matrix_appservice_kakaotalk/__init__.py @@ -0,0 +1,2 @@ +__version__ = "0.0.1" +__author__ = "Andrew Ferrazzutti " diff --git a/matrix_appservice_kakaotalk/__main__.py b/matrix_appservice_kakaotalk/__main__.py new file mode 100644 index 0000000..3a05681 --- /dev/null +++ b/matrix_appservice_kakaotalk/__main__.py @@ -0,0 +1,129 @@ +# 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 . +from __future__ import annotations + +from typing import Any + +from mautrix.bridge import Bridge +from mautrix.types import RoomID, UserID + +from .config import Config +from .db import init as init_db, upgrade_table +from .matrix import MatrixHandler +from .portal import Portal +from .puppet import Puppet +from .user import User +from .kt.client import Client as KakaoTalkClient +from .version import linkified_version, version +from .web import PublicBridgeWebsite +from . import commands as _ + + +class KakaoTalkBridge(Bridge): + name = "matrix-appservice-kakaotalk" + module = "matrix_appservice_kakaotalk" + command = "python -m matrix-appservice-kakaotalk" + description = "A Matrix-KakaoTalk puppeting bridge." + repo_url = "https://src.miscworks.net/fair/matrix-appservice-kakaotalk" + version = version + markdown_version = linkified_version + config_class = Config + matrix_class = MatrixHandler + upgrade_table = upgrade_table + + config: Config + matrix: MatrixHandler + public_website: PublicBridgeWebsite | None + + def prepare_config(self)->None: + super().prepare_config() + + def prepare_db(self) -> None: + super().prepare_db() + init_db(self.db) + + def prepare_bridge(self) -> None: + super().prepare_bridge() + if self.config["appservice.public.enabled"]: + secret = self.config["appservice.public.shared_secret"] + self.public_website = PublicBridgeWebsite(loop=self.loop, shared_secret=secret) + self.az.app.add_subapp( + self.config["appservice.public.prefix"], self.public_website.app + ) + else: + self.public_website = None + + def prepare_stop(self) -> None: + self.log.debug("Stopping puppet syncers") + for puppet in Puppet.by_custom_mxid.values(): + puppet.stop() + self.log.debug("Stopping kakaotalk listeners") + User.shutdown = True + for user in User.by_ktid.values(): + user.stop_listen() + self.add_shutdown_actions(user.save() for user in User.by_mxid.values()) + self.add_shutdown_actions(KakaoTalkClient.stop_cls()) + + async def start(self) -> None: + # Block all other startup actions until RPC is ready + # TODO Remove when/if node backend is replaced with native + await KakaoTalkClient.init_cls(self.config) + + self.add_startup_actions(User.init_cls(self)) + self.add_startup_actions(Puppet.init_cls(self)) + Portal.init_cls(self) + if self.config["bridge.resend_bridge_info"]: + self.add_startup_actions(self.resend_bridge_info()) + await super().start() + if self.public_website: + self.public_website.ready_wait.set_result(None) + + async def resend_bridge_info(self) -> None: + self.config["bridge.resend_bridge_info"] = False + self.config.save() + self.log.info("Re-sending bridge info state event to all portals") + async for portal in Portal.all(): + await portal.update_bridge_info() + self.log.info("Finished re-sending bridge info state events") + + async def get_portal(self, room_id: RoomID) -> Portal: + return await Portal.get_by_mxid(room_id) + + async def get_puppet(self, user_id: UserID, create: bool = False) -> Puppet: + return await Puppet.get_by_mxid(user_id, create=create) + + async def get_double_puppet(self, user_id: UserID) -> Puppet: + return await Puppet.get_by_custom_mxid(user_id) + + async def get_user(self, user_id: UserID, create: bool = True) -> User: + return await User.get_by_mxid(user_id, create=create) + + def is_bridge_ghost(self, user_id: UserID) -> bool: + return bool(Puppet.get_id_from_mxid(user_id)) + + async def count_logged_in_users(self) -> int: + return len([user for user in User.by_ktid.values() if user.ktid]) + + async def manhole_global_namespace(self, user_id: UserID) -> dict[str, Any]: + return { + **await super().manhole_global_namespace(user_id), + "User": User, + "Portal": Portal, + "Puppet": Puppet, + } + + +KakaoTalkBridge().run() diff --git a/matrix_appservice_kakaotalk/commands/__init__.py b/matrix_appservice_kakaotalk/commands/__init__.py new file mode 100644 index 0000000..7d42116 --- /dev/null +++ b/matrix_appservice_kakaotalk/commands/__init__.py @@ -0,0 +1,2 @@ +from .auth import SECTION_AUTH#, enter_2fa_code +from .conn import SECTION_CONNECTION diff --git a/matrix_appservice_kakaotalk/commands/auth.py b/matrix_appservice_kakaotalk/commands/auth.py new file mode 100644 index 0000000..75e02be --- /dev/null +++ b/matrix_appservice_kakaotalk/commands/auth.py @@ -0,0 +1,165 @@ +# 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 . +import time + +from yarl import URL + +from mautrix.bridge.commands import HelpSection, command_handler +from mautrix.errors import MForbidden +from mautrix.util.signed_token import sign_token + +from ..kt.client import Client as KakaoTalkClient +from ..kt.client.errors import DeviceVerificationRequired, IncorrectPasscode, IncorrectPassword, CommandException + +#from .. import puppet as pu +from .typehint import CommandEvent + +SECTION_AUTH = HelpSection("Authentication", 10, "") + +web_unsupported = ( + "This instance of the KakaoTalk bridge does not support the web-based login interface" +) +alternative_web_login = ( + "Alternatively, you may use [the web-based login interface]({url}) " + "to prevent the bridge and homeserver from seeing your password" +) +forced_web_login = ( + "This instance of the KakaoTalk bridge does not allow in-Matrix login. " + "Please use [the web-based login interface]({url})." +) +send_password = "Please send your password here to log in" +missing_email = "Please use `$cmdprefix+sp login ` to log in here" +try_again_or_cancel = "Try again, or say `$cmdprefix+sp cancel` to give up." + + +@command_handler( + needs_auth=False, + management_only=True, + help_section=SECTION_AUTH, + help_text="Log in to KakaoTalk", + help_args="[_email_]", +) +async def login(evt: CommandEvent) -> None: + if evt.sender.client: + await evt.reply("You're already logged in") + return + + email = evt.args[0] if len(evt.args) > 0 else None + + if email: + evt.sender.command_status = { + "action": "Login", + "room_id": evt.room_id, + "next": enter_password, + "email": evt.args[0], + } + + if evt.bridge.public_website: + external_url = URL(evt.config["appservice.public.external"]) + token = sign_token( + evt.bridge.public_website.secret_key, + { + "mxid": evt.sender.mxid, + "expiry": int(time.time()) + 30 * 60, + }, + ) + url = (external_url / "login.html").with_fragment(token) + if not evt.config["appservice.public.allow_matrix_login"]: + await evt.reply(forced_web_login.format(url=url)) + elif email: + await evt.reply(f"{send_password}. {alternative_web_login.format(url=url)}.") + else: + await evt.reply(f"{missing_email}. {alternative_web_login.format(url=url)}.") + elif not email: + await evt.reply(f"{missing_email}. {web_unsupported}.") + else: + await evt.reply(f"{send_password}. {web_unsupported}.") + + +async def enter_password(evt: CommandEvent) -> None: + try: + await evt.az.intent.redact(evt.room_id, evt.event_id) + except MForbidden: + pass + + assert(evt.sender.command_status) + req = { + "uuid": await evt.sender.get_uuid(), + "form": { + "email": evt.sender.command_status["email"], + "password": evt.content.body, + } + } + try: + await _do_login(evt, req) + except DeviceVerificationRequired: + await evt.reply( + "Open KakaoTalk on your smartphone. It should show a device registration passcode. " + "Enter that passcode here." + ) + evt.sender.command_status = { + "action": "Login", + "room_id": evt.room_id, + "next": enter_dv_code, + "req": req, + } + except IncorrectPassword: + await evt.reply(f"Incorrect password. {try_again_or_cancel}") + #except OAuthException as e: + # await evt.reply(f"Error from KakaoTalk:\n\n> {e}") + except Exception as e: + await _handle_login_failure(evt, e) + + +async def enter_dv_code(evt: CommandEvent) -> None: + assert(evt.sender.command_status) + req: dict = evt.sender.command_status["req"] + passcode = evt.content.body + try: + await KakaoTalkClient.register_device(passcode, **req) + await _do_login(evt, req) + except IncorrectPasscode: + await evt.reply(f"Incorrect device registration passcode. {try_again_or_cancel}") + #except OAuthException as e: + # await evt.reply(f"Error from KakaoTalk:\n\n> {e}") + except Exception as e: + await _handle_login_failure(evt, e) + + +async def _do_login(evt: CommandEvent, req: dict) -> None: + oauth_credential = await KakaoTalkClient.login(**req) + await evt.sender.on_logged_in(oauth_credential) + evt.sender.command_status = None + await evt.reply("Successfully logged in") + +async def _handle_login_failure(evt: CommandEvent, e: Exception) -> None: + evt.sender.command_status = None + if isinstance(e, CommandException): + message = "Failed to log in" + evt.log.error(message) + else: + message = "Error while logging in" + evt.log.exception(message) + await evt.reply(f"{message}: {e}") + + +@command_handler(needs_auth=True, help_section=SECTION_AUTH, help_text="Log out of KakaoTalk") +async def logout(evt: CommandEvent) -> None: + #puppet = await pu.Puppet.get_by_ktid(evt.sender.ktid) + await evt.sender.logout() + #if puppet.is_real_user: + # await puppet.switch_mxid(None, None) + await evt.reply("Successfully logged out") diff --git a/matrix_appservice_kakaotalk/commands/conn.py b/matrix_appservice_kakaotalk/commands/conn.py new file mode 100644 index 0000000..00446c4 --- /dev/null +++ b/matrix_appservice_kakaotalk/commands/conn.py @@ -0,0 +1,101 @@ +# 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 . +from mautrix.bridge.commands import HelpSection, command_handler + +from .typehint import CommandEvent + +SECTION_CONNECTION = HelpSection("Connection management", 15, "") + + +@command_handler( + needs_auth=False, + management_only=True, + help_section=SECTION_CONNECTION, + help_text="Mark this room as your bridge notice room", +) +async def set_notice_room(evt: CommandEvent) -> None: + evt.sender.notice_room = evt.room_id + await evt.sender.save() + await evt.reply("This room has been marked as your bridge notice room") + + +""" +@command_handler( + needs_auth=True, + management_only=True, + help_section=SECTION_CONNECTION, + help_text="Disconnect from KakaoTalk", +) +async def disconnect(evt: CommandEvent) -> None: + if not evt.sender.mqtt: + await evt.reply("You don't have a KakaoTalk MQTT connection") + return + evt.sender.mqtt.disconnect() + + +@command_handler( + needs_auth=True, + management_only=True, + help_section=SECTION_CONNECTION, + help_text="Connect to KakaoTalk", + aliases=["reconnect"], +) +async def connect(evt: CommandEvent) -> None: + if evt.sender.listen_task and not evt.sender.listen_task.done(): + await evt.reply("You already have a KakaoTalk MQTT connection") + return + evt.sender.start_listen() +""" + + +@command_handler( + needs_auth=True, + management_only=True, + help_section=SECTION_CONNECTION, + help_text="Check if you're logged into KakaoTalk", +) +async def ping(evt: CommandEvent) -> None: + if not await evt.sender.is_logged_in(): + await evt.reply("You're not logged into KakaoTalk") + return + # try: + own_info = await evt.sender.get_own_info() + # TODO catch errors + # except fbchat.PleaseRefresh as e: + # await evt.reply(f"{e}\n\nUse `$cmdprefix+sp refresh` refresh the session.") + # return + await evt.reply(f"You're logged in as {own_info.nickname} (user ID {evt.sender.ktid})") + + """ + if not evt.sender.listen_task or evt.sender.listen_task.done(): + await evt.reply("You don't have a KakaoTalk MQTT connection. Use `connect` to connect.") + elif not evt.sender.is_connected: + await evt.reply("The KakaoTalk MQTT listener is **disconnected**.") + else: + await evt.reply("The KakaoTalk MQTT listener is connected.") + """ + + +""" +@command_handler( + needs_auth=True, + management_only=True, + help_section=SECTION_CONNECTION, + help_text="Resync chats and reconnect to MQTT", +) +async def refresh(evt: CommandEvent) -> None: + await evt.sender.refresh(force_notice=True) +""" diff --git a/matrix_appservice_kakaotalk/commands/handler.py b/matrix_appservice_kakaotalk/commands/handler.py new file mode 100644 index 0000000..a79d5fc --- /dev/null +++ b/matrix_appservice_kakaotalk/commands/handler.py @@ -0,0 +1,26 @@ +# 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 . +from typing import NamedTuple + +from mautrix.bridge.commands import HelpSection + +HelpCacheKey = NamedTuple("FBHelpCacheKey", is_management=bool, is_admin=bool, is_logged_in=bool) + +SECTION_AUTH = HelpSection("Authentication", 10, "") +SECTION_CONNECTION = HelpSection("Connection management", 15, "") +SECTION_CREATING_PORTALS = HelpSection("Creating portals", 20, "") +SECTION_PORTAL_MANAGEMENT = HelpSection("Portal management", 30, "") +SECTION_ADMIN = HelpSection("Administration", 50, "") diff --git a/matrix_appservice_kakaotalk/commands/typehint.py b/matrix_appservice_kakaotalk/commands/typehint.py new file mode 100644 index 0000000..9833394 --- /dev/null +++ b/matrix_appservice_kakaotalk/commands/typehint.py @@ -0,0 +1,12 @@ +from typing import TYPE_CHECKING + +from mautrix.bridge.commands import CommandEvent as BaseCommandEvent + +if TYPE_CHECKING: + from ..__main__ import KakaoTalkBridge + from ..user import User + + +class CommandEvent(BaseCommandEvent): + bridge: "KakaoTalkBridge" + sender: "User" diff --git a/matrix_appservice_kakaotalk/config.py b/matrix_appservice_kakaotalk/config.py new file mode 100644 index 0000000..d98b852 --- /dev/null +++ b/matrix_appservice_kakaotalk/config.py @@ -0,0 +1,163 @@ +# 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 . +from __future__ import annotations + +from typing import Any +import os + +from mautrix.bridge.config import BaseBridgeConfig +from mautrix.types import UserID +from mautrix.util.config import ConfigUpdateHelper, ForbiddenDefault, ForbiddenKey + + +# TODO Remove unneeded configs!! +class Config(BaseBridgeConfig): + def __getitem__(self, key: str) -> Any: + try: + return os.environ[f"MATRIX_APPSERVICE_KAKAOTALK_{key.replace('.', '_').upper()}"] + except KeyError: + return super().__getitem__(key) + + @property + def forbidden_defaults(self) -> list[ForbiddenDefault]: + return [ + *super().forbidden_defaults, + ForbiddenDefault("appservice.database", "postgres://username:password@hostname/db"), + ForbiddenDefault( + "appservice.public.external", + "https://example.com/public", + condition="appservice.public.enabled", + ), + ForbiddenDefault("bridge.permissions", ForbiddenKey("example.com")), + ] + + def do_update(self, helper: ConfigUpdateHelper) -> None: + super().do_update(helper) + + copy, copy_dict, base = helper + + copy("homeserver.asmux") + + if self["appservice.bot_avatar"] == "mxc://maunium.net/ddtNPZSKMNqaUzqrHuWvUADv": + base["appservice.bot_avatar"] = "mxc://maunium.net/ygtkteZsXnGJLJHRchUwYWak" + + copy("appservice.public.enabled") + copy("appservice.public.prefix") + copy("appservice.public.external") + if self["appservice.public.shared_secret"] == "generate": + base["appservice.public.shared_secret"] = self._new_token() + else: + copy("appservice.public.shared_secret") + copy("appservice.public.allow_matrix_login") + copy("appservice.public.segment_key") + + copy("metrics.enabled") + copy("metrics.listen_port") + + copy("bridge.username_template") + copy("bridge.displayname_template") + copy("bridge.displayname_preference") + copy("bridge.command_prefix") + + copy("bridge.initial_chat_sync") + copy("bridge.invite_own_puppet_to_pm") + copy("bridge.sync_with_custom_puppets") + copy("bridge.sync_direct_chat_list") + copy("bridge.double_puppet_server_map") + copy("bridge.double_puppet_allow_discovery") + if "bridge.login_shared_secret" in self: + base["bridge.login_shared_secret_map"] = { + base["homeserver.domain"]: self["bridge.login_shared_secret"] + } + else: + copy("bridge.login_shared_secret_map") + copy("bridge.update_avatar_initial_sync") + copy("bridge.encryption.allow") + copy("bridge.encryption.default") + copy("bridge.encryption.key_sharing.allow") + copy("bridge.encryption.key_sharing.require_cross_signing") + copy("bridge.encryption.key_sharing.require_verification") + copy("bridge.delivery_receipts") + copy("bridge.federate_rooms") + copy("bridge.allow_invites") + copy("bridge.backfill.invite_own_puppet") + copy("bridge.backfill.initial_limit") + copy("bridge.backfill.missed_limit") + copy("bridge.backfill.disable_notifications") + if "bridge.periodic_reconnect_interval" in self: + base["bridge.periodic_reconnect.interval"] = self["bridge.periodic_reconnect_interval"] + base["bridge.periodic_reconnect.mode"] = self["bridge.periodic_reconnect_mode"] + else: + copy("bridge.periodic_reconnect.interval") + copy("bridge.periodic_reconnect.mode") + copy("bridge.periodic_reconnect.always") + copy("bridge.periodic_reconnect.min_connected_time") + copy("bridge.resync_max_disconnected_time") + copy("bridge.sync_on_startup") + copy("bridge.temporary_disconnect_notices") + copy("bridge.disable_bridge_notices") + if "bridge.refresh_on_reconnection_fail" in self: + base["bridge.on_reconnection_fail.action"] = ( + "refresh" if self["bridge.refresh_on_reconnection_fail"] else None + ) + base["bridge.on_reconnection_fail.wait_for"] = 0 + elif "bridge.on_reconnection_fail.refresh" in self: + base["bridge.on_reconnection_fail.action"] = ( + "refresh" if self["bridge.on_reconnection_fail.refresh"] else None + ) + copy("bridge.on_reconnection_fail.wait_for") + else: + copy("bridge.on_reconnection_fail.action") + copy("bridge.on_reconnection_fail.wait_for") + copy("bridge.resend_bridge_info") + copy("bridge.mute_bridging") + copy("bridge.tag_only_on_create") + copy("bridge.sandbox_media_download") + + copy_dict("bridge.permissions") + + for key in ( + "bridge.periodic_reconnect.interval", + "bridge.on_reconnection_fail.wait_for", + ): + value = base.get(key, None) + if isinstance(value, list) and len(value) != 2: + raise ValueError(f"{key} must only be a list of two items") + + copy("rpc.connection.type") + if base["rpc.connection.type"] == "unix": + copy("rpc.connection.path") + else: + copy("rpc.connection.host") + copy("rpc.connection.port") + + def _get_permissions(self, key: str) -> tuple[bool, bool, bool, str]: + level = self["bridge.permissions"].get(key, "") + admin = level == "admin" + user = level == "user" or admin + relay = level == "relay" or user + return relay, user, admin, level + + def get_permissions(self, mxid: UserID) -> tuple[bool, bool, bool, str]: + permissions = self["bridge.permissions"] or {} + if mxid in permissions: + return self._get_permissions(mxid) + + homeserver = mxid[mxid.index(":") + 1 :] + if homeserver in permissions: + return self._get_permissions(homeserver) + + return self._get_permissions("*") diff --git a/matrix_appservice_kakaotalk/db/__init__.py b/matrix_appservice_kakaotalk/db/__init__.py new file mode 100644 index 0000000..8c3c932 --- /dev/null +++ b/matrix_appservice_kakaotalk/db/__init__.py @@ -0,0 +1,25 @@ +from mautrix.util.async_db import Database + +from .message import Message +from .portal import Portal +from .puppet import Puppet +from .reaction import Reaction +from .upgrade import upgrade_table +from .user import User + + +def init(db: Database) -> None: + for table in (Portal, Message, Reaction, User, Puppet): + table.db = db + + +__all__ = [ + "upgrade_table", + "init", + "Message", + "Reaction", + "Portal", + "ThreadType", + "Puppet", + "User", +] diff --git a/matrix_appservice_kakaotalk/db/message.py b/matrix_appservice_kakaotalk/db/message.py new file mode 100644 index 0000000..847740f --- /dev/null +++ b/matrix_appservice_kakaotalk/db/message.py @@ -0,0 +1,160 @@ +# 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 . +from __future__ import annotations + +from typing import TYPE_CHECKING, ClassVar + +from asyncpg import Record +from attr import dataclass + +from mautrix.types import EventID, RoomID +from mautrix.util.async_db import Database + +fake_db = Database.create("") if TYPE_CHECKING else None + + +@dataclass +class Message: + db: ClassVar[Database] = fake_db + + mxid: EventID + mx_room: RoomID + ktid: str | None + kt_txn_id: int | None + index: int + kt_chat: int + kt_receiver: int + kt_sender: int + timestamp: int + + @classmethod + def _from_row(cls, row: Record | None) -> Message | None: + if row is None: + return None + return cls(**row) + + columns = 'mxid, mx_room, ktid, kt_txn_id, "index", kt_chat, kt_receiver, kt_sender, timestamp' + + @classmethod + async def get_all_by_ktid(cls, ktid: str, kt_receiver: int) -> list[Message]: + q = f"SELECT {cls.columns} FROM message WHERE ktid=$1 AND kt_receiver=$2" + rows = await cls.db.fetch(q, ktid, kt_receiver) + return [cls._from_row(row) for row in rows] + + @classmethod + async def get_by_ktid(cls, ktid: str, kt_receiver: int, index: int = 0) -> Message | None: + q = f'SELECT {cls.columns} FROM message WHERE ktid=$1 AND kt_receiver=$2 AND "index"=$3' + row = await cls.db.fetchrow(q, ktid, kt_receiver, index) + return cls._from_row(row) + + @classmethod + async def get_by_ktid_or_oti( + cls, ktid: str, oti: int, kt_receiver: int, kt_sender: int, index: int = 0 + ) -> Message | None: + q = ( + f"SELECT {cls.columns} " + "FROM message WHERE (ktid=$1 OR (kt_txn_id=$2 AND kt_sender=$3)) AND " + ' kt_receiver=$4 AND "index"=$5' + ) + row = await cls.db.fetchrow(q, ktid, oti, kt_sender, kt_receiver, index) + return cls._from_row(row) + + @classmethod + async def delete_all_by_room(cls, room_id: RoomID) -> None: + await cls.db.execute("DELETE FROM message WHERE mx_room=$1", room_id) + + @classmethod + async def get_by_mxid(cls, mxid: EventID, mx_room: RoomID) -> Message | None: + q = f"SELECT {cls.columns} FROM message WHERE mxid=$1 AND mx_room=$2" + row = await cls.db.fetchrow(q, mxid, mx_room) + return cls._from_row(row) + + @classmethod + async def get_most_recent(cls, kt_chat: int, kt_receiver: int) -> Message | None: + q = ( + f"SELECT {cls.columns} " + "FROM message WHERE kt_chat=$1 AND kt_receiver=$2 AND ktid IS NOT NULL " + "ORDER BY timestamp DESC LIMIT 1" + ) + row = await cls.db.fetchrow(q, kt_chat, kt_receiver) + return cls._from_row(row) + + @classmethod + async def get_closest_before( + cls, kt_chat: int, kt_receiver: int, timestamp: int + ) -> Message | None: + q = ( + f"SELECT {cls.columns} " + "FROM message WHERE kt_chat=$1 AND kt_receiver=$2 AND timestamp<=$3 AND " + " ktid IS NOT NULL " + "ORDER BY timestamp DESC LIMIT 1" + ) + row = await cls.db.fetchrow(q, kt_chat, kt_receiver, timestamp) + return cls._from_row(row) + + _insert_query = ( + 'INSERT INTO message (mxid, mx_room, ktid, kt_txn_id, "index", kt_chat, kt_receiver, ' + " kt_sender, timestamp) " + "VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9)" + ) + + @classmethod + async def bulk_create( + cls, + ktid: str, + oti: int, + kt_chat: int, + kt_receiver: int, + kt_sender: int, + event_ids: list[EventID], + timestamp: int, + mx_room: RoomID, + ) -> None: + if not event_ids: + return + columns = [col.strip('"') for col in cls.columns.split(", ")] + records = [ + (mxid, mx_room, ktid, oti, index, kt_chat, kt_receiver, kt_sender, timestamp) + for index, mxid in enumerate(event_ids) + ] + async with cls.db.acquire() as conn, conn.transaction(): + if cls.db.scheme == "postgres": + await conn.copy_records_to_table("message", records=records, columns=columns) + else: + await conn.executemany(cls._insert_query, records) + + async def insert(self) -> None: + q = self._insert_query + await self.db.execute( + q, + self.mxid, + self.mx_room, + self.ktid, + self.kt_txn_id, + self.index, + self.kt_chat, + self.kt_receiver, + self.kt_sender, + self.timestamp, + ) + + async def delete(self) -> None: + q = 'DELETE FROM message WHERE ktid=$1 AND kt_receiver=$2 AND "index"=$3' + await self.db.execute(q, self.ktid, self.kt_receiver, self.index) + + async def update(self) -> None: + q = "UPDATE message SET ktid=$1, timestamp=$2 WHERE mxid=$3 AND mx_room=$4" + await self.db.execute(q, self.ktid, self.timestamp, self.mxid, self.mx_room) diff --git a/matrix_appservice_kakaotalk/db/portal.py b/matrix_appservice_kakaotalk/db/portal.py new file mode 100644 index 0000000..ead8b38 --- /dev/null +++ b/matrix_appservice_kakaotalk/db/portal.py @@ -0,0 +1,133 @@ +# 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 . +from __future__ import annotations + +from typing import TYPE_CHECKING, ClassVar + +from asyncpg import Record +from attr import dataclass + +from mautrix.types import ContentURI, RoomID, UserID +from mautrix.util.async_db import Database + +from ..kt.types.bson import Long +from ..kt.types.channel.channel_type import ChannelType + +fake_db = Database.create("") if TYPE_CHECKING else None + + +@dataclass +class Portal: + db: ClassVar[Database] = fake_db + + ktid: Long + kt_receiver: Long + kt_type: ChannelType + mxid: RoomID | None + name: str | None + photo_id: str | None + avatar_url: ContentURI | None + encrypted: bool + name_set: bool + avatar_set: bool + relay_user_id: UserID | None + + @classmethod + def _from_row(cls, row: Record) -> Portal: + data = {**row} + ktid = data.pop("ktid") + kt_receiver = data.pop("kt_receiver") + return cls(**data, ktid=Long.from_optional_bytes(ktid), kt_receiver=Long.from_optional_bytes(kt_receiver)) + + @classmethod + def _from_optional_row(cls, row: Record | None) -> Portal | None: + return cls._from_row(row) if row is not None else None + + @classmethod + async def get_by_ktid(cls, ktid: Long, kt_receiver: Long) -> Portal | None: + q = """ + SELECT ktid, kt_receiver, kt_type, mxid, name, photo_id, avatar_url, encrypted, + name_set, avatar_set, relay_user_id + FROM portal WHERE ktid=$1 AND kt_receiver=$2 + """ + row = await cls.db.fetchrow(q, bytes(ktid), bytes(kt_receiver)) + return cls._from_optional_row(row) + + @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, + name_set, avatar_set, relay_user_id + FROM portal WHERE mxid=$1 + """ + row = await cls.db.fetchrow(q, mxid) + return cls._from_optional_row(row) + + @classmethod + async def get_all_by_receiver(cls, kt_receiver: Long) -> list[Portal]: + q = """ + SELECT ktid, kt_receiver, kt_type, mxid, name, photo_id, avatar_url, encrypted, + name_set, avatar_set, relay_user_id + FROM portal WHERE kt_receiver=$1 + """ + rows = await cls.db.fetch(q, bytes(kt_receiver)) + return [cls._from_row(row) for row in rows if row] + + @classmethod + async def all(cls) -> list[Portal]: + q = """ + SELECT ktid, kt_receiver, kt_type, mxid, name, photo_id, avatar_url, encrypted, + name_set, avatar_set, relay_user_id + FROM portal + """ + rows = await cls.db.fetch(q) + return [cls._from_row(row) for row in rows if row] + + @property + def _values(self): + return ( + Long.to_optional_bytes(self.ktid), + Long.to_optional_bytes(self.kt_receiver), + self.kt_type, + self.mxid, + self.name, + self.photo_id, + self.avatar_url, + self.encrypted, + self.name_set, + self.avatar_set, + self.relay_user_id, + ) + + async def insert(self) -> None: + q = """ + INSERT INTO portal (ktid, kt_receiver, kt_type, mxid, name, photo_id, avatar_url, + encrypted, name_set, avatar_set, relay_user_id) + VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11) + """ + await self.db.execute(q, *self._values) + + async def delete(self) -> None: + q = "DELETE FROM portal WHERE ktid=$1 AND kt_receiver=$2" + await self.db.execute(q, Long.to_optional_bytes(self.ktid), Long.to_optional_bytes(self.kt_receiver)) + + 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 + WHERE ktid=$1 AND kt_receiver=$2 + """ + await self.db.execute(q, *self._values) diff --git a/matrix_appservice_kakaotalk/db/puppet.py b/matrix_appservice_kakaotalk/db/puppet.py new file mode 100644 index 0000000..937949c --- /dev/null +++ b/matrix_appservice_kakaotalk/db/puppet.py @@ -0,0 +1,135 @@ +# 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 . +from __future__ import annotations + +from typing import TYPE_CHECKING, ClassVar + +from asyncpg import Record +from attr import dataclass +from yarl import URL + +from mautrix.types import ContentURI, SyncToken, UserID +from mautrix.util.async_db import Database + +from ..kt.types.bson import Long + +fake_db = Database.create("") if TYPE_CHECKING else None + + +@dataclass +class Puppet: + db: ClassVar[Database] = fake_db + + ktid: Long + name: str | None + photo_id: str | None + photo_mxc: ContentURI | None + name_set: bool + avatar_set: bool + is_registered: bool + + custom_mxid: UserID | None + access_token: str | None + next_batch: SyncToken | None + base_url: URL | None + + @classmethod + def _from_row(cls, row: Record) -> Puppet: + data = {**row} + ktid = data.pop("ktid") + base_url = data.pop("base_url", None) + return cls(**data, ktid=Long.from_optional_bytes(ktid), base_url=URL(base_url) if base_url else None) + + @classmethod + def _from_optional_row(cls, row: Record | None) -> Puppet | None: + return cls._from_row(row) if row is not None else None + + @classmethod + async def get_by_ktid(cls, ktid: Long) -> Puppet | None: + q = ( + "SELECT ktid, name, photo_id, photo_mxc, name_set, avatar_set, is_registered, " + " custom_mxid, access_token, next_batch, base_url " + "FROM puppet WHERE ktid=$1" + ) + row = await cls.db.fetchrow(q, bytes(ktid)) + return cls._from_optional_row(row) + + @classmethod + async def get_by_name(cls, name: str) -> Puppet | None: + q = ( + "SELECT ktid, name, photo_id, photo_mxc, name_set, avatar_set, is_registered, " + " custom_mxid, access_token, next_batch, base_url " + "FROM puppet WHERE name=$1" + ) + row = await cls.db.fetchrow(q, name) + return cls._from_optional_row(row) + + @classmethod + async def get_by_custom_mxid(cls, mxid: UserID) -> Puppet | None: + q = ( + "SELECT ktid, name, photo_id, photo_mxc, name_set, avatar_set, is_registered, " + " custom_mxid, access_token, next_batch, base_url " + "FROM puppet WHERE custom_mxid=$1" + ) + row = await cls.db.fetchrow(q, mxid) + return cls._from_optional_row(row) + + @classmethod + async def get_all_with_custom_mxid(cls) -> list[Puppet]: + q = ( + "SELECT ktid, name, photo_id, photo_mxc, name_set, avatar_set, is_registered, " + " custom_mxid, access_token, next_batch, base_url " + "FROM puppet WHERE custom_mxid<>''" + ) + rows = await cls.db.fetch(q) + return [cls._from_row(row) for row in rows if row] + + @property + def _values(self): + return ( + bytes(self.ktid), + self.name, + self.photo_id, + self.photo_mxc, + self.name_set, + self.avatar_set, + self.is_registered, + self.custom_mxid, + self.access_token, + self.next_batch, + str(self.base_url) if self.base_url else None, + ) + + async def insert(self) -> None: + q = """ + INSERT INTO puppet (ktid, name, photo_id, photo_mxc, name_set, avatar_set, + is_registered, custom_mxid, access_token, next_batch, base_url) + VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11) + """ + await self.db.execute(q, *self._values) + + async def delete(self) -> None: + q = "DELETE FROM puppet WHERE ktid=$1" + await self.db.execute(q, bytes(self.ktid)) + + async def save(self) -> None: + q = """ + UPDATE puppet SET name=$2, photo_id=$3, photo_mxc=$4, name_set=$5, avatar_set=$6, + is_registered=$7, custom_mxid=$8, access_token=$9, next_batch=$10, + base_url=$11 + WHERE ktid=$1 + """ + await self.db.execute(q, *self._values) diff --git a/matrix_appservice_kakaotalk/db/reaction.py b/matrix_appservice_kakaotalk/db/reaction.py new file mode 100644 index 0000000..c7b3bd1 --- /dev/null +++ b/matrix_appservice_kakaotalk/db/reaction.py @@ -0,0 +1,91 @@ +# 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 . +from __future__ import annotations + +from typing import TYPE_CHECKING, ClassVar + +from asyncpg import Record +from attr import dataclass + +from mautrix.types import EventID, RoomID +from mautrix.util.async_db import Database + +fake_db = Database.create("") if TYPE_CHECKING else None + + +@dataclass +class Reaction: + db: ClassVar[Database] = fake_db + + mxid: EventID + mx_room: RoomID + kt_msgid: str + kt_receiver: int + kt_sender: int + reaction: str + + @classmethod + def _from_row(cls, row: Record | None) -> Reaction | None: + if row is None: + return None + return cls(**row) + + @classmethod + async def get_by_ktid(cls, kt_msgid: str, kt_receiver: int, kt_sender: int) -> Reaction | None: + q = ( + "SELECT mxid, mx_room, kt_msgid, kt_receiver, kt_sender, reaction " + "FROM reaction WHERE kt_msgid=$1 AND kt_receiver=$2 AND kt_sender=$3" + ) + row = await cls.db.fetchrow(q, kt_msgid, kt_receiver, kt_sender) + return cls._from_row(row) + + @classmethod + async def get_by_mxid(cls, mxid: EventID, mx_room: RoomID) -> Reaction | None: + q = ( + "SELECT mxid, mx_room, kt_msgid, kt_receiver, kt_sender, reaction " + "FROM reaction WHERE mxid=$1 AND mx_room=$2" + ) + row = await cls.db.fetchrow(q, mxid, mx_room) + return cls._from_row(row) + + @property + def _values(self): + return ( + self.mxid, + self.mx_room, + self.kt_msgid, + self.kt_receiver, + self.kt_sender, + self.reaction, + ) + + async def insert(self) -> None: + q = ( + "INSERT INTO reaction (mxid, mx_room, kt_msgid, kt_receiver, kt_sender, reaction) " + "VALUES ($1, $2, $3, $4, $5, $6)" + ) + await self.db.execute(q, *self._values) + + async def delete(self) -> None: + q = "DELETE FROM reaction WHERE kt_msgid=$1 AND kt_receiver=$2 AND kt_sender=$3" + await self.db.execute(q, self.kt_msgid, self.kt_receiver, self.kt_sender) + + async def save(self) -> None: + q = ( + "UPDATE reaction SET mxid=$1, mx_room=$2, reaction=$6 " + "WHERE kt_msgid=$3 AND kt_receiver=$4 AND kt_sender=$5" + ) + await self.db.execute(q, *self._values) diff --git a/matrix_appservice_kakaotalk/db/upgrade/__init__.py b/matrix_appservice_kakaotalk/db/upgrade/__init__.py new file mode 100644 index 0000000..146e713 --- /dev/null +++ b/matrix_appservice_kakaotalk/db/upgrade/__init__.py @@ -0,0 +1,5 @@ +from mautrix.util.async_db import UpgradeTable + +upgrade_table = UpgradeTable() + +from . import v01_initial_revision diff --git a/matrix_appservice_kakaotalk/db/upgrade/v01_initial_revision.py b/matrix_appservice_kakaotalk/db/upgrade/v01_initial_revision.py new file mode 100644 index 0000000..e37dbf4 --- /dev/null +++ b/matrix_appservice_kakaotalk/db/upgrade/v01_initial_revision.py @@ -0,0 +1,99 @@ +# 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 . +from __future__ import annotations + +from mautrix.util.async_db import Connection + +from . import upgrade_table + + +@upgrade_table.register(description="Initial revision", transaction=False) +async def upgrade_v1(conn: Connection) -> None: + async with conn.transaction(): + await create_v1_tables(conn) + + +async def create_v1_tables(conn: Connection) -> None: + await conn.execute( + """CREATE TABLE "user" ( + mxid TEXT PRIMARY KEY, + ktid BYTES UNIQUE, + uuid TEXT, + access_token TEXT, + refresh_token TEXT, + notice_room TEXT + )""" + ) + await conn.execute( + """CREATE TABLE portal ( + ktid BYTES, + kt_receiver BYTES, + kt_type TEXT, + mxid TEXT UNIQUE, + name TEXT, + photo_id TEXT, + avatar_url TEXT, + encrypted BOOLEAN NOT NULL DEFAULT false, + name_set BOOLEAN NOT NULL DEFAULT false, + avatar_set BOOLEAN NOT NULL DEFAULT false, + relay_user_id TEXT, + PRIMARY KEY (ktid, kt_receiver) + )""" + ) + await conn.execute( + """CREATE TABLE puppet ( + ktid BYTES PRIMARY KEY, + name TEXT, + photo_id TEXT, + photo_mxc TEXT, + + name_set BOOLEAN NOT NULL DEFAULT false, + avatar_set BOOLEAN NOT NULL DEFAULT false, + is_registered BOOLEAN NOT NULL DEFAULT false, + + custom_mxid TEXT, + access_token TEXT, + next_batch TEXT, + base_url TEXT + )""" + ) + await conn.execute( + """CREATE TABLE message ( + mxid TEXT, + mx_room TEXT, + ktid TEXT, + kt_receiver BYTES, + "index" SMALLINT, + kt_chat BYTES, + timestamp BIGINT, + PRIMARY KEY (ktid, kt_receiver, "index"), + FOREIGN KEY (kt_chat, kt_receiver) REFERENCES portal(ktid, kt_receiver) + ON UPDATE CASCADE ON DELETE CASCADE, + UNIQUE (mxid, mx_room) + )""" + ) + await conn.execute( + """CREATE TABLE reaction ( + mxid TEXT, + mx_room TEXT, + kt_msgid TEXT, + kt_receiver BYTES, + kt_sender BYTES, + reaction TEXT, + PRIMARY KEY (kt_msgid, kt_receiver, kt_sender), + UNIQUE (mxid, mx_room) + )""" + ) diff --git a/matrix_appservice_kakaotalk/db/user.py b/matrix_appservice_kakaotalk/db/user.py new file mode 100644 index 0000000..005621f --- /dev/null +++ b/matrix_appservice_kakaotalk/db/user.py @@ -0,0 +1,97 @@ +# 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 . +from __future__ import annotations + +from typing import TYPE_CHECKING, ClassVar, List, Set + +from asyncpg import Record +from attr import dataclass + +from mautrix.types import RoomID, UserID +from mautrix.util.async_db import Database + +from ..kt.types.bson import Long + +fake_db = Database.create("") if TYPE_CHECKING else None + + +@dataclass +class User: + db: ClassVar[Database] = fake_db + + mxid: UserID + ktid: Long | None + uuid: str | None + access_token: str | None + refresh_token: str | None + notice_room: RoomID | None + + @classmethod + def _from_row(cls, row: Record) -> User: + data = {**row} + ktid = data.pop("ktid", None) + return cls(**data, ktid=Long.from_optional_bytes(ktid)) + + @classmethod + def _from_optional_row(cls, row: Record | None) -> User | None: + return cls._from_row(row) if row is not None else None + + @classmethod + async def all_logged_in(cls) -> List[User]: + q = """ + SELECT mxid, ktid, uuid, access_token, refresh_token, notice_room FROM "user" + WHERE ktid<>0 + """ + rows = await cls.db.fetch(q) + return [cls._from_row(row) for row in rows if row] + + @classmethod + async def get_by_ktid(cls, ktid: Long) -> User | None: + q = 'SELECT mxid, ktid, uuid, access_token, refresh_token, notice_room FROM "user" WHERE ktid=$1' + row = await cls.db.fetchrow(q, bytes(ktid)) + return cls._from_optional_row(row) + + @classmethod + async def get_by_mxid(cls, mxid: UserID) -> User | None: + q = 'SELECT mxid, ktid, uuid, access_token, refresh_token, notice_room FROM "user" WHERE mxid=$1' + row = await cls.db.fetchrow(q, mxid) + return cls._from_optional_row(row) + + @classmethod + async def get_all_uuids(cls) -> Set[str]: + q = 'SELECT uuid FROM "user" WHERE uuid IS NOT NULL' + return {tuple(record)[0] for record in await cls.db.fetch(q)} + + async def insert(self) -> None: + q = """ + INSERT INTO "user" (mxid, ktid, uuid, access_token, refresh_token, notice_room) + VALUES ($1, $2, $3, $4, $5, $6) + """ + await self.db.execute( + q, self.mxid, Long.to_optional_bytes(self.ktid), self.uuid, self.access_token, self.refresh_token, self.notice_room + ) + + async def delete(self) -> None: + await self.db.execute('DELETE FROM "user" WHERE mxid=$1', self.mxid) + + async def save(self) -> None: + q = """ + UPDATE "user" SET ktid=$1, uuid=$2, access_token=$3, refresh_token=$4, notice_room=$5 + WHERE mxid=$6 + """ + await self.db.execute( + q, Long.to_optional_bytes(self.ktid), self.uuid, self.access_token, self.refresh_token, self.notice_room, self.mxid + ) diff --git a/matrix_appservice_kakaotalk/example-config.yaml b/matrix_appservice_kakaotalk/example-config.yaml new file mode 100644 index 0000000..3197d93 --- /dev/null +++ b/matrix_appservice_kakaotalk/example-config.yaml @@ -0,0 +1,322 @@ +# Homeserver details +homeserver: + # The address that this appservice can use to connect to the homeserver. + address: https://example.com + # The domain of the homeserver (for MXIDs, etc). + domain: example.com + # Whether or not to verify the SSL certificate of the homeserver. + # Only applies if address starts with https:// + verify_ssl: true + # Whether or not the homeserver supports asmux-specific endpoints, + # such as /_matrix/client/unstable/net.maunium.asmux/dms for atomically + # updating m.direct. + asmux: false + # Number of retries for all HTTP requests if the homeserver isn't reachable. + http_retry_count: 4 + # The URL to push real-time bridge status to. + # If set, the bridge will make POST requests to this URL whenever a user's Facebook MQTT connection state changes. + # The bridge will use the appservice as_token to authorize requests. + status_endpoint: null + # Endpoint for reporting per-message status. + message_send_checkpoint_endpoint: null + +# Application service host/registration related details +# Changing these values requires regeneration of the registration. +appservice: + # The address that the homeserver can use to connect to this appservice. + address: http://localhost:11115 + + # The hostname and port where this appservice should listen. + hostname: localhost + port: 11115 + # The maximum body size of appservice API requests (from the homeserver) in mebibytes + # Usually 1 is enough, but on high-traffic bridges you might need to increase this to avoid 413s + max_body_size: 1 + + # The full URI to the database. SQLite and Postgres are supported. + # Format examples: + # SQLite: sqlite:///filename.db + # Postgres: postgres://username:password@hostname/dbname + database: postgres://username:password@hostname/db + # Additional arguments for asyncpg.create_pool() or sqlite3.connect() + # https://magicstack.github.io/asyncpg/current/api/index.html#asyncpg.pool.create_pool + # https://docs.python.org/3/library/sqlite3.html#sqlite3.connect + # For sqlite, min_size is used as the connection thread pool size and max_size is ignored. + database_opts: + min_size: 5 + max_size: 10 + + # Public part of web server for out-of-Matrix interaction with the bridge. + public: + # Whether or not the public-facing endpoints should be enabled. + enabled: false + # The prefix to use in the public-facing endpoints. + prefix: /public + # The base URL where the public-facing endpoints are available. The prefix is not added + # implicitly. + external: https://example.com/public + # Shared secret for integration managers such as mautrix-manager. + # If set to "generate", a random string will be generated on the next startup. + # If null, integration manager access to the API will not be possible. + shared_secret: generate + # Allow logging in within Matrix. If false, users can only log in using the web interface. + allow_matrix_login: true + # Segment API key to enable analytics tracking for web server endpoints. Set to null to disable. + # Currently the only events are login start, success and fail. + segment_key: null + + # The unique ID of this appservice. + id: kakaotalk + # Username of the appservice bot. + bot_username: kakaotalkbot + # Display name and avatar for bot. Set to "remove" to remove display name/avatar, leave empty + # to leave display name/avatar as-is. + bot_displayname: KakaoTalk bridge bot + bot_avatar: + + # Whether or not to receive ephemeral events via appservice transactions. + # Requires MSC2409 support (i.e. Synapse 1.22+). + # You should disable bridge -> sync_with_custom_puppets when this is enabled. + ephemeral_events: false + + # Authentication tokens for AS <-> HS communication. Autogenerated; do not modify. + as_token: "This value is generated when generating the registration" + hs_token: "This value is generated when generating the registration" + +# Prometheus telemetry config. Requires prometheus-client to be installed. +metrics: + enabled: false + listen_port: 8000 + +# Manhole config. +manhole: + # Whether or not opening the manhole is allowed. + enabled: false + # The path for the unix socket. + path: /var/tmp/matrix-appservice-kakaotalk.manhole + # The list of UIDs who can be added to the whitelist. + # If empty, any UIDs can be specified in the open-manhole command. + whitelist: + - 0 + +# Bridge config +bridge: + # Localpart template of MXIDs for KakaoTalk users. + # {userid} is replaced with the user ID of the KakaoTalk user. + username_template: "kakaotalk_{userid}" + # Displayname template for KakaoTalk users. + # {displayname} is replaced with the display name of the KakaoTalk user + # as defined below in displayname_preference. + # Keys available for displayname_preference are also available here. + displayname_template: "{displayname} (KT)" + # Available keys: TODO + # "name" (full name) + # "first_name" + # "last_name" + # "nickname" + # "own_nickname" (user-specific!) + displayname_preference: + - nickname + + # The prefix for commands. Only required in non-management rooms. + command_prefix: "!kt" + + # Number of chats to sync (and create portals for) on startup/login. + # Set 0 to disable automatic syncing. + initial_chat_sync: 20 + # Whether or not the KakaoTalk users of logged in Matrix users should be + # invited to private chats when the user sends a message from another client. + invite_own_puppet_to_pm: false + # Whether or not to use /sync to get presence, read receipts and typing notifications + # when double puppeting is enabled + sync_with_custom_puppets: true + # Whether or not to update the m.direct account data event when double puppeting is enabled. + # Note that updating the m.direct event is not atomic (except with mautrix-asmux) + # and is therefore prone to race conditions. + sync_direct_chat_list: false + # Servers to always allow double puppeting from + double_puppet_server_map: + example.com: https://example.com + # Allow using double puppeting from any server with a valid client .well-known file. + double_puppet_allow_discovery: false + # Shared secrets for https://github.com/devture/matrix-synapse-shared-secret-auth + # + # If set, custom puppets will be enabled automatically for local users + # instead of users having to find an access token and run `login-matrix` + # manually. + # If using this for other servers than the bridge's server, + # you must also set the URL in the double_puppet_server_map. + login_shared_secret_map: + example.com: foobar + # Whether or not to update avatars when syncing all contacts at startup. + update_avatar_initial_sync: true + # End-to-bridge encryption support options. These require matrix-nio to be installed with pip + # and login_shared_secret to be configured in order to get a device for the bridge bot. + # + # Additionally, https://github.com/matrix-org/synapse/pull/5758 is required if using a normal + # application service. + encryption: + # Allow encryption, work in group chat rooms with e2ee enabled + allow: false + # Default to encryption, force-enable encryption in all portals the bridge creates + # This will cause the bridge bot to be in private chats for the encryption to work properly. + default: false + # Options for automatic key sharing. + key_sharing: + # Enable key sharing? If enabled, key requests for rooms where users are in will be fulfilled. + # You must use a client that supports requesting keys from other users to use this feature. + allow: false + # Require the requesting device to have a valid cross-signing signature? + # This doesn't require that the bridge has verified the device, only that the user has verified it. + # Not yet implemented. + require_cross_signing: false + # Require devices to be verified by the bridge? + # Verification by the bridge is not yet implemented. + require_verification: true + # Whether or not the bridge should send a read receipt from the bridge bot when a message has + # been sent to KakaoTalk. + delivery_receipts: false + # Whether to allow inviting arbitrary mxids to portal rooms + allow_invites: false + # Whether or not created rooms should have federation enabled. + # If false, created portal rooms will never be federated. + federate_rooms: true + # Settings for backfilling messages from KakaoTalk. + backfill: + # Whether or not the KakaoTalk users of logged in Matrix users should be + # invited to private chats when backfilling history from KakaoTalk. This is + # usually needed to prevent rate limits and to allow timestamp massaging. + # TODO Is this necessary? + invite_own_puppet: true + # Maximum number of messages to backfill initially. + # Set to 0 to disable backfilling when creating portal. + initial_limit: 0 + # Maximum number of messages to backfill if messages were missed while + # the bridge was disconnected. + # Set to 0 to disable backfilling missed messages. + missed_limit: 1000 + # If using double puppeting, should notifications be disabled + # while the initial backfill is in progress? + disable_notifications: false + # TODO Confirm this isn't needed + #periodic_reconnect: + # # Interval in seconds in which to automatically reconnect all users. + # # This can be used to automatically mitigate the bug where KakaoTalk stops sending messages. + # # Set to -1 to disable periodic reconnections entirely. + # # Set to a list of two items to randomize the interval (min, max). + # interval: -1 + # # What to do in periodic reconnects. Either "refresh" or "reconnect" + # mode: refresh + # # Should even disconnected users be reconnected? + # always: false + # # Only reconnect if the user has been connected for longer than this value + # min_connected_time: 0 + # The number of seconds that a disconnection can last without triggering an automatic re-sync + # and missed message backfilling when reconnecting. + # Set to 0 to always re-sync, or -1 to never re-sync automatically. + resync_max_disconnected_time: 5 + # Should the bridge do a resync on startup? + sync_on_startup: true + # Whether or not temporary disconnections should send notices to the notice room. + # If this is false, disconnections will never send messages and connections will only send + # messages if it was disconnected for more than resync_max_disconnected_time seconds. + # TODO Probably don't need this + temporary_disconnect_notices: true + # Disable bridge notices entirely + disable_bridge_notices: false + on_reconnection_fail: + # Whether or not the bridge should try to "refresh" the connection if a normal reconnection + # attempt fails. + refresh: false + # Seconds to wait before attempting to refresh the connection, set a list of two items to + # to randomize the interval (min, max). + wait_for: 0 + # Set this to true to tell the bridge to re-send m.bridge events to all rooms on the next run. + # This field will automatically be changed back to false after it, + # except if the config file is not writable. + resend_bridge_info: false + # When using double puppeting, should muted chats be muted in Matrix? + mute_bridging: false + # Whether or not mute status and tags should only be bridged when the portal room is created. + tag_only_on_create: true + # If set to true, downloading media from the CDN will use a plain aiohttp client without the usual headers or + # other configuration. This may be useful if you don't want to use the default proxy for large files. + sandbox_media_download: false + + # Permissions for using the bridge. + # Permitted values: + # relay - Allowed to be relayed through the bridge, no access to commands. + # user - Use the bridge with puppeting. + # admin - Use and administrate the bridge. + # Permitted keys: + # * - All Matrix users + # domain - All users on that homeserver + # mxid - Specific user + permissions: + "*": "relay" + "example.com": "user" + "@admin:example.com": "admin" + + relay: + # Whether relay mode should be allowed. If allowed, `!fb set-relay` can be used to turn any + # authenticated user into a relaybot for that chat. + enabled: false + # The formats to use when sending messages to KakaoTalk via a relay user. + # + # Available variables: + # $sender_displayname - The display name of the sender (e.g. Example User) + # $sender_username - The username (Matrix ID localpart) of the sender (e.g. exampleuser) + # $sender_mxid - The Matrix ID of the sender (e.g. @exampleuser:example.com) + # $message - The message content + message_formats: + m.text: '$sender_displayname: $message' + m.notice: '$sender_displayname: $message' + m.emote: '* $sender_displayname $message' + m.file: '$sender_displayname sent a file' + m.image: '$sender_displayname sent an image' + m.audio: '$sender_displayname sent an audio file' + m.video: '$sender_displayname sent a video' + m.location: '$sender_displayname sent a location' + +rpc: + connection: + # Either unix or tcp + type: unix + # Only for type: unix + path: /var/run/matrix-appservice-kakaotalk/rpc.sock + # Only for type: tcp + host: localhost + port: 29392 + +# Python logging configuration. +# +# See section 16.7.2 of the Python documentation for more info: +# https://docs.python.org/3.6/library/logging.config.html#configuration-dictionary-schema +logging: + version: 1 + formatters: + colored: + (): matrix_appservice_kakaotalk.util.ColorFormatter + format: "[%(asctime)s] [%(levelname)s@%(name)s] %(message)s" + normal: + format: "[%(asctime)s] [%(levelname)s@%(name)s] %(message)s" + handlers: + file: + class: logging.handlers.RotatingFileHandler + formatter: normal + filename: ./matrix-appservice-kakaotalk.log + maxBytes: 10485760 + backupCount: 10 + console: + class: logging.StreamHandler + formatter: colored + loggers: + mau: + level: DEBUG + paho: + level: INFO + aiohttp: + level: INFO + root: + level: DEBUG + handlers: [file, console] diff --git a/matrix_appservice_kakaotalk/formatter/__init__.py b/matrix_appservice_kakaotalk/formatter/__init__.py new file mode 100644 index 0000000..da0da8e --- /dev/null +++ b/matrix_appservice_kakaotalk/formatter/__init__.py @@ -0,0 +1,2 @@ +from .from_kakaotalk import kakaotalk_to_matrix +from .from_matrix import matrix_to_kakaotalk diff --git a/matrix_appservice_kakaotalk/formatter/from_kakaotalk.py b/matrix_appservice_kakaotalk/formatter/from_kakaotalk.py new file mode 100644 index 0000000..4ab4c8d --- /dev/null +++ b/matrix_appservice_kakaotalk/formatter/from_kakaotalk.py @@ -0,0 +1,170 @@ +# 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 . +from __future__ import annotations + +from typing import Match +from html import escape +import re + +from mautrix.types import Format, MessageType, TextMessageEventContent + +from .. import puppet as pu, user as u + +_START = r"^|\s" +_END = r"$|\s" +_TEXT_NO_SURROUNDING_SPACE = r"(?:[^\s].*?[^\s])|[^\s]" +COMMON_REGEX = re.compile(rf"({_START})([_~*])({_TEXT_NO_SURROUNDING_SPACE})\2({_END})") +INLINE_CODE_REGEX = re.compile(rf"({_START})(`)(.+?)`({_END})") +MENTION_REGEX = re.compile(r"@([0-9]{1,15})\u2063(.+?)\u2063") + +tags = {"_": "em", "*": "strong", "~": "del", "`": "code"} + + +def _handle_match(html: str, match: Match, nested: bool) -> tuple[str, int]: + start, end = match.start(), match.end() + prefix, sigil, text, suffix = match.groups() + if nested: + text = _convert_formatting(text) + tag = tags[sigil] + # We don't want to include the whitespace suffix length, as that could be used as the + # whitespace prefix right after this formatting block. + pos = start + len(prefix) + (2 * len(tag) + 5) + len(text) + html = f"{html[:start]}{prefix}<{tag}>{text}{suffix}{html[end:]}" + return html, pos + + +def _convert_formatting(html: str) -> str: + pos = 0 + while pos < len(html): + i_match = INLINE_CODE_REGEX.search(html, pos) + c_match = COMMON_REGEX.search(html, pos) + if i_match and c_match: + match = min(i_match, c_match, key=lambda match: match.start()) + else: + match = i_match or c_match + + if match: + html, pos = _handle_match(html, match, nested=match != i_match) + else: + break + return html + + +def _handle_blockquote(output: list[str], blockquote: bool, line: str) -> tuple[bool, str]: + if not blockquote and line.startswith("> "): + line = line[len("> ") :] + output.append("
") + blockquote = True + elif blockquote: + if line.startswith(">"): + line = line[len(">") :] + if line.startswith(" "): + line = line[1:] + else: + output.append("
") + blockquote = False + return blockquote, line + + +def _handle_codeblock_pre( + output: list[str], codeblock: bool, line: str +) -> tuple[bool, str, tuple[str | None, str | None, str | None]]: + cb = line.find("```") + cb_lang = None + cb_content = None + post_cb_content = None + if cb != -1: + if not codeblock: + cb_lang = line[cb + 3 :] + if "```" in cb_lang: + end = cb_lang.index("```") + cb_content = cb_lang[:end] + post_cb_content = cb_lang[end + 3 :] + cb_lang = "" + else: + codeblock = True + line = line[:cb] + else: + output.append("") + codeblock = False + line = line[cb + 3 :] + return codeblock, line, (cb_lang, cb_content, post_cb_content) + + +def _handle_codeblock_post( + output: list[str], cb_lang: str | None, cb_content: str | None, post_cb_content: str | None +) -> None: + if cb_lang is not None: + if cb_lang: + output.append(f'
')
+        else:
+            output.append("
")
+        if cb_content:
+            output.append(cb_content)
+            output.append("
")
+            output.append(_convert_formatting(post_cb_content))
+
+
+async def kakaotalk_to_matrix(msg: str) -> TextMessageEventContent:
+    text = msg or ""
+    mentions = []
+    content = TextMessageEventContent(msgtype=MessageType.TEXT, body=text)
+    mention_user_ids = []
+    for m in reversed(mentions):
+        original = text[m.offset : m.offset + m.length]
+        if len(original) > 0 and original[0] == "@":
+            original = original[1:]
+        mention_user_ids.append(int(m.user_id))
+        text = f"{text[:m.offset]}@{m.user_id}\u2063{original}\u2063{text[m.offset + m.length:]}"
+    html = escape(text)
+    output = []
+    if html:
+        codeblock = False
+        blockquote = False
+        line: str
+        lines = html.split("\n")
+        for i, line in enumerate(lines):
+            blockquote, line = _handle_blockquote(output, blockquote, line)
+            codeblock, line, post_args = _handle_codeblock_pre(output, codeblock, line)
+            output.append(_convert_formatting(line))
+            if i != len(lines) - 1:
+                if codeblock:
+                    output.append("\n")
+                else:
+                    output.append("
")
+            _handle_codeblock_post(output, *post_args)
+    html = "".join(output)
+
+    mention_user_map = {}
+    for ktid in mention_user_ids:
+        user = await u.User.get_by_ktid(ktid)
+        if user:
+            mention_user_map[ktid] = user.mxid
+        else:
+            puppet = await pu.Puppet.get_by_ktid(ktid, create=False)
+            mention_user_map[ktid] = puppet.mxid if puppet else None
+
+    def _mention_replacer(match: Match) -> str:
+        mxid = mention_user_map[int(match.group(1))]
+        if not mxid:
+            return match.group(2)
+        return f'{match.group(2)}'
+
+    html = MENTION_REGEX.sub(_mention_replacer, html)
+    if html != escape(content.body).replace("\n", "
\n"):
+        content.format = Format.HTML
+        content.formatted_body = html
+    return content
diff --git a/matrix_appservice_kakaotalk/formatter/from_matrix.py b/matrix_appservice_kakaotalk/formatter/from_matrix.py
new file mode 100644
index 0000000..0a1b0d6
--- /dev/null
+++ b/matrix_appservice_kakaotalk/formatter/from_matrix.py
@@ -0,0 +1,120 @@
+# 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 .
+from __future__ import annotations
+
+from typing import NamedTuple
+
+from mautrix.types import Format, MessageEventContent, RelationType, RoomID
+from mautrix.util.formatter import (
+    EntityString,
+    EntityType,
+    MarkdownString,
+    MatrixParser as BaseMatrixParser,
+    SimpleEntity,
+)
+from mautrix.util.logging import TraceLogger
+
+from .. import puppet as pu, user as u
+from ..db import Message as DBMessage
+
+
+class SendParams(NamedTuple):
+    text: str
+    mentions: list[None]
+    reply_to: str
+
+
+class FacebookFormatString(EntityString[SimpleEntity, EntityType], MarkdownString):
+    def format(self, entity_type: EntityType, **kwargs) -> FacebookFormatString:
+        prefix = suffix = ""
+        if entity_type == EntityType.USER_MENTION:
+            self.entities.append(
+                SimpleEntity(
+                    type=entity_type,
+                    offset=0,
+                    length=len(self.text),
+                    extra_info={"user_id": kwargs["user_id"]},
+                )
+            )
+            return self
+        elif entity_type == EntityType.BOLD:
+            prefix = suffix = "*"
+        elif entity_type == EntityType.ITALIC:
+            prefix = suffix = "_"
+        elif entity_type == EntityType.STRIKETHROUGH:
+            prefix = suffix = "~"
+        elif entity_type == EntityType.URL:
+            if kwargs["url"] != self.text:
+                suffix = f" ({kwargs['url']})"
+        elif entity_type == EntityType.PREFORMATTED:
+            prefix = f"```{kwargs['language']}\n"
+            suffix = "\n```"
+        elif entity_type == EntityType.INLINE_CODE:
+            prefix = suffix = "`"
+        elif entity_type == EntityType.BLOCKQUOTE:
+            children = self.trim().split("\n")
+            children = [child.prepend("> ") for child in children]
+            return self.join(children, "\n")
+        elif entity_type == EntityType.HEADER:
+            prefix = "#" * kwargs["size"] + " "
+        else:
+            return self
+
+        self._offset_entities(len(prefix))
+        self.text = f"{prefix}{self.text}{suffix}"
+        return self
+
+
+class MatrixParser(BaseMatrixParser[FacebookFormatString]):
+    fs = FacebookFormatString
+
+
+async def matrix_to_kakaotalk(
+    content: MessageEventContent, room_id: RoomID, log: TraceLogger
+) -> SendParams:
+    mentions = []
+    reply_to = None
+    if content.relates_to.rel_type == RelationType.REPLY:
+        message = await DBMessage.get_by_mxid(content.relates_to.event_id, room_id)
+        if message:
+            content.trim_reply_fallback()
+            reply_to = message.ktid
+        else:
+            log.warning(
+                f"Couldn't find reply target {content.relates_to.event_id}"
+                " to bridge text message reply metadata to Facebook"
+            )
+    if content.get("format", None) == Format.HTML and content["formatted_body"]:
+        parsed = await MatrixParser().parse(content["formatted_body"])
+        text = parsed.text
+        mentions = []
+        for mention in parsed.entities:
+            mxid = mention.extra_info["user_id"]
+            user = await u.User.get_by_mxid(mxid, create=False)
+            if user and user.ktid:
+                ktid = user.ktid
+            else:
+                puppet = await pu.Puppet.get_by_mxid(mxid, create=False)
+                if puppet:
+                    ktid = puppet.ktid
+                else:
+                    continue
+            #mentions.append(
+            #    Mention(user_id=str(ktid), offset=mention.offset, length=mention.length)
+            #)
+    else:
+        text = content.body
+    return SendParams(text=text, mentions=mentions, reply_to=reply_to)
diff --git a/matrix_appservice_kakaotalk/get_version.py b/matrix_appservice_kakaotalk/get_version.py
new file mode 100644
index 0000000..7524340
--- /dev/null
+++ b/matrix_appservice_kakaotalk/get_version.py
@@ -0,0 +1,49 @@
+import os
+import shutil
+import subprocess
+
+from . import __version__
+
+cmd_env = {
+    "PATH": os.environ["PATH"],
+    "HOME": os.environ["HOME"],
+    "LANG": "C",
+    "LC_ALL": "C",
+}
+
+
+def run(cmd):
+    return subprocess.check_output(cmd, stderr=subprocess.DEVNULL, env=cmd_env)
+
+
+if os.path.exists(".git") and shutil.which("git"):
+    try:
+        git_revision = run(["git", "rev-parse", "HEAD"]).strip().decode("ascii")
+        git_revision_url = f"https://github.com/mautrix/facebook/commit/{git_revision}"
+        git_revision = git_revision[:8]
+    except (subprocess.SubprocessError, OSError):
+        git_revision = "unknown"
+        git_revision_url = ""
+
+    try:
+        git_tag = run(["git", "describe", "--exact-match", "--tags"]).strip().decode("ascii")
+    except (subprocess.SubprocessError, OSError):
+        git_tag = None
+else:
+    git_revision = "unknown"
+    git_revision_url = ""
+    git_tag = None
+
+git_tag_url = f"https://github.com/mautrix/facebook/releases/tag/{git_tag}" if git_tag else None
+
+if git_tag and __version__ == git_tag[1:].replace("-", ""):
+    version = __version__
+    linkified_version = f"[{version}]({git_tag_url})"
+else:
+    if not __version__.endswith("+dev"):
+        __version__ += "+dev"
+    version = f"{__version__}.{git_revision}"
+    if git_revision_url:
+        linkified_version = f"{__version__}.[{git_revision}]({git_revision_url})"
+    else:
+        linkified_version = version
diff --git a/matrix_appservice_kakaotalk/kt/__init__.py b/matrix_appservice_kakaotalk/kt/__init__.py
new file mode 100644
index 0000000..ba0173f
--- /dev/null
+++ b/matrix_appservice_kakaotalk/kt/__init__.py
@@ -0,0 +1,16 @@
+# 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 .
+"""Utilities for interacting with KakaoTalk."""
diff --git a/matrix_appservice_kakaotalk/kt/client/__init__.py b/matrix_appservice_kakaotalk/kt/client/__init__.py
new file mode 100644
index 0000000..11ea577
--- /dev/null
+++ b/matrix_appservice_kakaotalk/kt/client/__init__.py
@@ -0,0 +1,18 @@
+# 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 .
+"""Wrappers around the KakaoTalk API."""
+
+from .client import Client
diff --git a/matrix_appservice_kakaotalk/kt/client/client.py b/matrix_appservice_kakaotalk/kt/client/client.py
new file mode 100644
index 0000000..0bfba14
--- /dev/null
+++ b/matrix_appservice_kakaotalk/kt/client/client.py
@@ -0,0 +1,289 @@
+# 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 .
+"""
+Client functionality for the KakaoTalk API.
+Currently a wrapper around a Node backend, but
+the abstraction used here should be compatible
+with any other potential backend.
+"""
+
+from __future__ import annotations
+
+from typing import TYPE_CHECKING, cast, Awaitable, Callable, Type
+
+import logging
+import urllib.request
+
+from aiohttp import ClientSession
+from aiohttp.client import _RequestContextManager
+from yarl import URL
+
+from mautrix.util.logging import TraceLogger
+
+from ...config import Config
+from ...rpc import RPCClient
+
+from ..types.api.struct.profile import ProfileReqStruct, ProfileStruct
+from ..types.bson import Long
+from ..types.client.client_session import LoginResult
+from ..types.chat.chat import Chatlog
+from ..types.oauth import OAuthCredential, OAuthInfo
+from ..types.request import (
+    deserialize_result,
+    ResultType, RootCommandResult, CommandResultDoneValue)
+
+from .types import ChannelInfoUnion
+from .types import PortalChannelInfo
+
+from .errors import InvalidAccessToken
+from .error_helper import raise_unsuccessful_response
+
+try:
+    from aiohttp_socks import ProxyConnector
+except ImportError:
+    ProxyConnector = None
+
+if TYPE_CHECKING:
+    from mautrix.types import JSON
+    from ...user import User
+    from ...rpc.rpc import EventHandler
+
+
+# TODO Consider defining an interface for this, with node/native backend as swappable implementations
+# TODO If no state is stored, consider using free functions instead of classmethods
+class Client:
+    _rpc_client: RPCClient
+
+    @classmethod
+    async def init_cls(cls, config: Config) -> None:
+        """Initialize RPC to the Node backend."""
+        cls._rpc_client = RPCClient(config)
+        await cls._rpc_client.connect()
+
+    @classmethod
+    async def stop_cls(cls) -> None:
+        """Stop and disconnect from the Node backend."""
+        await cls._rpc_client.request("stop")
+        await cls._rpc_client.disconnect()
+
+
+    # region tokenless commands
+
+    @classmethod
+    async def generate_uuid(cls, used_uuids: set[str]) -> str:
+        """Randomly generate a UUID for a (fake) device."""
+        tries_remaining = 10
+        while True:
+            uuid = await cls._rpc_client.request("generate_uuid")
+            if uuid not in used_uuids:
+                return uuid
+            tries_remaining -= 1
+            if tries_remaining == 0:
+                raise Exception(
+                    "Unable to generate a UUID that hasn't been used before. "
+                    "Either use a different RNG, or buy a lottery ticket"
+                )
+
+    @classmethod
+    async def register_device(cls, passcode: str, **req) -> None:
+        """Register a (fake) device that will be associated with the provided login credentials."""
+        await cls._api_request_void("register_device", passcode=passcode, **req)
+
+    @classmethod
+    async def login(cls, **req) -> OAuthCredential:
+        """
+        Obtain a session token by logging in with user-provided credentials.
+        Must have first called register_device with these credentials.
+        """
+        return await cls._api_request_result(OAuthCredential, "login", is_secret=True, **req)
+
+    # endregion
+
+
+    http: ClientSession
+    log: TraceLogger
+
+    def __init__(self, user: User, log: TraceLogger | None = None):
+        """Create a per-user client object for user-specific client functionality."""
+        self.user = user
+
+        # TODO Let the Node backend use a proxy too!
+        connector = None
+        try:
+            http_proxy = urllib.request.getproxies()["http"]
+        except KeyError:
+            pass
+        else:
+            if ProxyConnector:
+                connector = ProxyConnector.from_url(http_proxy)
+            else:
+                self.log.warning("http_proxy is set, but aiohttp-socks is not installed")
+        self.http = ClientSession(connector=connector)
+
+        self.log = log or logging.getLogger("mw.ktclient")
+
+    @property
+    def _oauth_credential(self) -> JSON:
+        return self.user.oauth_credential.serialize()
+
+    def _get_user_data(self) -> JSON:
+        return dict(
+            mxid=self.user.mxid,
+            oauth_credential=self._oauth_credential
+        )
+
+    # region HTTP
+
+    def get(
+        self,
+        url: str | URL,
+        headers: dict[str, str] | None = None,
+        **kwargs,
+    ) -> _RequestContextManager:
+        # TODO Is auth ever needed?
+        headers = {
+            **self._headers,
+            **(headers or {}),
+        }
+        url = URL(url)
+        return self.http.get(url, headers=headers, **kwargs)
+
+    # endregion
+
+
+    # region post-token commands
+
+    async def renew(self) -> OAuthInfo:
+        """Get a new set of tokens from a refresh token."""
+        return await self._api_request_result(OAuthInfo, "renew", oauth_credential=self._oauth_credential)
+
+    async def renew_and_save(self) -> None:
+        """Renew and save the user's session tokens."""
+        oauth_info = await self.renew()
+        self.user.oauth_credential = oauth_info.credential
+        await self.user.save()
+
+    async def start(self) -> LoginResult:
+        """
+        Start a new session by providing a token obtained from a prior login.
+        Receive a snapshot of account state in response.
+        """
+        login_result = await self._api_user_request_result(LoginResult, "start")
+        assert self.user.ktid == login_result.userId, f"User ID mismatch: expected {self.user.ktid}, got {login_result.userId}"
+        return login_result
+
+    async def fetch_logged_in_user(self, post_login: bool = False) -> ProfileStruct:
+        profile_req_struct = await self._api_user_request_result(ProfileReqStruct, "get_own_profile")
+        return profile_req_struct.profile
+
+    """
+    async def is_connected(self) -> bool:
+        resp = await self._rpc_client.request("is_connected")
+        return resp["is_connected"]
+    """
+
+    async def get_portal_channel_info(self, channel_info: ChannelInfoUnion) -> PortalChannelInfo:
+        req = await self._api_user_request_result(
+            PortalChannelInfo,
+            "get_portal_channel_info",
+            channel_id=channel_info.channelId.serialize()
+        )
+        req.channel_info = channel_info
+        return req
+
+    async def get_profile(self, user_id: Long) -> ProfileStruct:
+        profile_req_struct = await self._api_user_request_result(
+            ProfileReqStruct,
+            "get_profile",
+            user_id=user_id.serialize()
+        )
+        return profile_req_struct.profile
+
+    async def stop(self) -> None:
+        # TODO Stop all event handlers
+        await self._api_user_request_void("stop")
+
+
+    # TODO Combine these into one
+
+    async def _api_user_request_result(
+        self, result_type: Type[ResultType], command: str, **data: JSON
+    ) -> ResultType:
+        renewed = False
+        while True:
+            try:
+                return await self._api_request_result(result_type, command, **self._get_user_data(), **data)
+            except InvalidAccessToken:
+                if renewed:
+                    raise
+                await self.renew_and_save()
+                renewed = True
+
+    async def _api_user_request_void(self, command: str, **data: JSON) -> None:
+        renewed = False
+        while True:
+            try:
+                return await self._api_request_void(command, **self._get_user_data(), **data)
+            except InvalidAccessToken:
+                if renewed:
+                    raise
+                await self.renew_and_save()
+                renewed = True
+
+    # endregion
+
+
+    # region listeners
+
+    async def on_message(self, func: Callable[[Chatlog, Long], Awaitable[None]]) -> None:
+        async def wrapper(data: dict[str, JSON]) -> None:
+            await func(Chatlog.deserialize(data["chatlog"]), data["channelId"])
+
+        self._add_user_handler("chat", wrapper)
+
+
+    def _add_user_handler(self, command: str, handler: EventHandler) -> str:
+        self._rpc_client.add_event_handler(f"{command}:{self.mxid}", handler)
+
+    # endregion
+
+
+    @classmethod
+    async def _api_request_result(
+        cls, result_type: Type[ResultType], command: str, **data: JSON
+    ) -> ResultType:
+        """
+        Call a command via RPC, and return its result object.
+        On failure, raise an appropriate exception.
+        """
+        resp = deserialize_result(
+            result_type,
+            await cls._rpc_client.request(command, **data)
+        )
+        if not resp.success:
+            raise_unsuccessful_response(resp)
+        # NOTE Not asserting against CommandResultDoneValue because it's generic!
+        # TODO Check if there really is no way to do it.
+        assert type(resp) is not RootCommandResult, "Result object missing from successful response"
+        return cast(CommandResultDoneValue[ResultType], resp).result
+
+    @classmethod
+    async def _api_request_void(cls, command: str, **data: JSON) -> None:
+        resp = RootCommandResult.deserialize(
+            await cls._rpc_client.request(command, **data)
+        )
+        if not resp.success:
+            raise_unsuccessful_response(resp)
diff --git a/matrix_appservice_kakaotalk/kt/client/error_helper.py b/matrix_appservice_kakaotalk/kt/client/error_helper.py
new file mode 100644
index 0000000..b178803
--- /dev/null
+++ b/matrix_appservice_kakaotalk/kt/client/error_helper.py
@@ -0,0 +1,125 @@
+# 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 .
+"""Internal helpers for error handling."""
+
+from __future__ import annotations
+
+from typing import NoReturn, Type
+
+from .errors import (
+    CommandException,
+    AuthenticationRequired,
+    DeviceVerificationRequired,
+    IncorrectPasscode,
+    IncorrectPassword,
+    InvalidAccessToken,
+)
+from ..types.request import RootCommandResult, KnownDataStatusCode
+from ..types.api.auth_api_client import KnownAuthStatusCode
+
+
+def raise_unsuccessful_response(resp: RootCommandResult) -> NoReturn:
+    raise _error_code_class_map.get(resp.status, CommandException)(resp)
+
+
+_error_code_class_map: dict[KnownAuthStatusCode | KnownDataStatusCode | int, Type[CommandException]] = {
+    #KnownAuthStatusCode.INVALID_PHONE_NUMBER: "Invalid phone number",
+    #KnownAuthStatusCode.SUCCESS_WITH_ACCOUNT: "Success",
+    #KnownAuthStatusCode.SUCCESS_WITH_DEVICE_CHANGED: "Success (device changed)",
+    KnownAuthStatusCode.MISMATCH_PASSWORD: IncorrectPassword,
+    #KnownAuthStatusCode.EXCEED_LOGIN_LIMIT: "Login limit exceeded",
+    #KnownAuthStatusCode.MISMATCH_PHONE_NUMBER: "Phone number mismatch",
+    #KnownAuthStatusCode.EXCEED_PHONE_NUMBER_CHECK_LIMIT: "Phone number limit exceeded",
+    #KnownAuthStatusCode.NOT_EXIST_ACCOUNT: "Account does not exist",
+    #KnownAuthStatusCode.NEED_CHECK_PHONE_NUMBER: "Must check phone number",
+    #KnownAuthStatusCode.NEED_CHECK_QUIZ: "Must check quiz",
+    #KnownAuthStatusCode.DORMANT_ACCOUNT: "Dormant account",
+    #KnownAuthStatusCode.RESTRICTED_ACCOUNT: "Restricted account",
+    KnownAuthStatusCode.LOGIN_FAILED: IncorrectPassword,
+    #KnownAuthStatusCode.NOT_VERIFIED_EMAIL: "Unverified email address",
+    #KnownAuthStatusCode.MOBILE_UNREGISTERED: "Mobile device not registered",
+    #KnownAuthStatusCode.UNKNOWN_PHONE_NUMBER: "Unknown phone number",
+    #KnownAuthStatusCode.SUCCESS_SAME_USER: "Success (same user)",
+    #KnownAuthStatusCode.SUCCESS_SAME_USER_BY_MIGRATION: "Success (same user by migration)",
+    #KnownAuthStatusCode.TOO_MANY_REQUEST_A_DAY: "Too many requests a day",
+    #KnownAuthStatusCode.TOO_MANY_REQUEST_AT_A_TIME: " Too many requests at a time",
+    KnownAuthStatusCode.MISMATCH_PASSCODE: IncorrectPasscode,
+    #KnownAuthStatusCode.EXCEED_DAILY_REQUEST_LIMIT: "Daily request limit exceeded",
+    #KnownAuthStatusCode.EXCEED_DAILY_REQUEST_LIMIT_VOICECALL: "Daily voicecall limit exceeded",
+    #KnownAuthStatusCode.EXCEED_DAILY_REQUEST_LIMIT_WITHOUT_TOKEN: "Daily tokenless request limit exceeded",
+    KnownAuthStatusCode.DEVICE_NOT_REGISTERED: DeviceVerificationRequired,
+    #KnownAuthStatusCode.ANOTHER_LOGON: "Another logon detected",
+    #KnownAuthStatusCode.DEVICE_REGISTER_FAILED: "Device registration failed",
+    #KnownAuthStatusCode.INVALID_DEVICE_REGISTER: "Invalid device",
+    KnownAuthStatusCode.INVALID_PASSCODE: IncorrectPasscode,
+    #KnownAuthStatusCode.PASSCODE_REQUEST_FAILED: "Passcode request failed",
+    #KnownAuthStatusCode.NEED_TERMS_AGREE: "Must agree to terms",
+    #KnownAuthStatusCode.DENIED_DEVICE_MODEL: "Denied device model",
+    #KnownAuthStatusCode.RESET_STEP: "Reset step",
+    #KnownAuthStatusCode.NEED_PROTECTOR_AGREE: "Must agree to protector terms",
+    #KnownAuthStatusCode.ACCOUNT_RESTRICTED: "Account restricted",
+    ##KnownAuthStatusCode.INVALID_STAGE_ERROR: "Same as KnownAuthStatusCode.AUTH_REQUIRED",
+    #KnownAuthStatusCode.UPGRADE_REQUIRED: "Upgrade required",
+    #KnownAuthStatusCode.VOICE_CALL_ONLY: "Voice call only",
+    #KnownAuthStatusCode.ACCESSIBILITY_ARS_ONLY: "Accessibility only",
+    #KnownAuthStatusCode.MIGRATION_FAILURE: "Migration failure",
+    #KnownAuthStatusCode.INVAILD_TOKEN: "Invalid token",
+    #KnownAuthStatusCode.UNDEFINED: "Undefined error",
+
+    #KnownDataStatusCode.SUCCESS: "Success",
+    #KnownDataStatusCode.INVALID_USER: "Invalid user",
+    #KnownDataStatusCode.CLIENT_ERROR: "Client error",
+    #KnownDataStatusCode.NOT_LOGON: "Not logged in",
+    #KnownDataStatusCode.INVALID_METHOD: "Invalid method",
+    #KnownDataStatusCode.INVALID_PARAMETER: "Invalid parameter",
+    #KnownDataStatusCode.INVALID_BODY: "Invalid body",
+    #KnownDataStatusCode.INVALID_HEADER: "Invalid header",
+    #KnownDataStatusCode.UNAUTHORIZED_CHAT_DELETE: "Unauthorized chat deletion",
+    #KnownDataStatusCode.MEDIA_SERVER_ERROR: "Media server error",
+    #KnownDataStatusCode.CHAT_SPAM_LIMIT: "Chat spam limit exceeded",
+    #KnownDataStatusCode.RESTRICTED_APP: "Restricted app",
+    #KnownDataStatusCode.LOGINLIST_CHATLIST_FAILED: "Login chat list failed",
+    #KnownDataStatusCode.MEDIA_NOT_FOUND: "Media not found",
+    #KnownDataStatusCode.MEDIA_THUMB_GEN_FAILED: "Could not generate media thumbnail",
+    #KnownDataStatusCode.UNSUPPORTED: "Unsupported",
+    #KnownDataStatusCode.PARTIAL: "Parial",
+    #KnownDataStatusCode.LINK_JOIN_TPS_EXCEEDED: "Link join TPS exceeded",
+    #KnownDataStatusCode.CHAT_SEND_RESTRICTED: "Chat send restricted",
+    #KnownDataStatusCode.CHANNEL_CREATE_TEMP_RESTRICTED: "Channel creation temporarily restricted",
+    #KnownDataStatusCode.CHANNEL_CREATE_RESTRICTED: "Channel creation restricted",
+    #KnownDataStatusCode.OPENLINK_UNAVAILABLE: "Openlink unavailable",
+    #KnownDataStatusCode.INVITE_COUNT_LIMITED: "Invite count limited",
+    #KnownDataStatusCode.OPENLINK_CREATE_RESTRICTED: "Openlink creation restricted",
+    #KnownDataStatusCode.INVALID_CHANNEL: "Invalid channel",
+    #KnownDataStatusCode.CHAT_BLOCKED_BY_FRIEND: "Blocked by friend",
+    #KnownDataStatusCode.NOT_CHATABLE_USER: "Non-chattable user",
+    #KnownDataStatusCode.GAME_MESSAGE_BLOCKED: "Game message blocked",
+    #KnownDataStatusCode.BLOCKED_IP: "Blocked IP",
+    #KnownDataStatusCode.BACKGROUND_LOGIN_BLOCKED: "Background login blocked",
+    #KnownDataStatusCode.OPERATION_DENIED: "Operation denied",
+    #KnownDataStatusCode.CHANNEL_USER_LIMITED: "Channel user limited",
+    #KnownDataStatusCode.TEMP_RESTRICTED: "Temporarily restricted",
+    #KnownDataStatusCode.WRITE_WHILE_BLOCKED: "Write while blocked",
+    #KnownDataStatusCode.OPENCHAT_REJOIN_REQUIRED: "Openchat rejoin required",
+    #KnownDataStatusCode.OPENCHAT_TIME_RESTRICTED: "Openchat time restricted",
+    KnownDataStatusCode.INVALID_ACCESS_TOKEN: InvalidAccessToken,
+    ##KnownDataStatusCode.BLOCKED_ACCOUNT: "Same as KnownAuthStatusCode.ACCOUNT_RESTRICTED"
+    KnownDataStatusCode.AUTH_REQUIRED: AuthenticationRequired,
+    ##KnownDataStatusCode.UPDATE_REQUIRED = "Same as KnownAuthStatusCode.UPGRADE_REQUIRED"
+    #KnownDataStatusCode.SERVER_UNDER_MAINTENANCE: "Server under maintenance",
+
+    401: InvalidAccessToken,
+}
diff --git a/matrix_appservice_kakaotalk/kt/client/errors.py b/matrix_appservice_kakaotalk/kt/client/errors.py
new file mode 100644
index 0000000..90a6989
--- /dev/null
+++ b/matrix_appservice_kakaotalk/kt/client/errors.py
@@ -0,0 +1,160 @@
+# 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 .
+"""Helper functions & types for status codes for the KakaoTalk API."""
+
+from __future__ import annotations
+
+from typing import Type
+
+from ..types.api.auth_api_client import KnownAuthStatusCode
+from ..types.request import KnownDataStatusCode, RootCommandResult
+
+
+class CommandException(Exception):
+    def __init__(self, result: RootCommandResult):
+        """
+        Base type for errors raised from KakaoTalk. Subclasses identify different kinds of errors.
+        Which subclass to use should be based on the status code of the "result" object.
+        In the case that different status codes map to the same error subclass, the status code
+        can be retrieved from the "status" property.
+        """
+        # NOTE unsuccessful responses do not set a result, hence using RootCommandResult here
+        # TODO Print _unrecognized?
+        self.status = result.status
+        self.message = _status_code_message_map.get(self.status, self._default_message)
+
+    @property
+    def _default_message(self):
+        return "Unknown error"
+
+    def __str__(self):
+        return f"{self.message} ({self.status})"
+
+
+class OAuthException(CommandException):
+    pass
+
+class DeviceVerificationRequired(OAuthException):
+    pass
+
+class IncorrectPassword(OAuthException):
+    pass
+
+class IncorrectPasscode(OAuthException):
+    pass
+
+class InvalidAccessToken(OAuthException):
+    """Thrown when the session token is invalid and must be refreshed"""
+    @property
+    def _default_message(self):
+        return "Invalid access token"
+
+class AuthenticationRequired(OAuthException):
+    """Thrown when both the session token and refresh token are invalid"""
+    pass
+
+
+class ResponseError(Exception):
+    """TODO Use for network failures to the KakaoTalk API"""
+    pass
+
+
+_status_code_message_map: dict[KnownAuthStatusCode | KnownDataStatusCode | int] = {
+    KnownAuthStatusCode.INVALID_PHONE_NUMBER: "Invalid phone number",
+    KnownAuthStatusCode.SUCCESS_WITH_ACCOUNT: "Success",
+    KnownAuthStatusCode.SUCCESS_WITH_DEVICE_CHANGED: "Success (device changed)",
+    KnownAuthStatusCode.MISMATCH_PASSWORD: "Password mismatch",
+    KnownAuthStatusCode.EXCEED_LOGIN_LIMIT: "Login limit exceeded",
+    KnownAuthStatusCode.MISMATCH_PHONE_NUMBER: "Phone number mismatch",
+    KnownAuthStatusCode.EXCEED_PHONE_NUMBER_CHECK_LIMIT: "Phone number limit exceeded",
+    KnownAuthStatusCode.NOT_EXIST_ACCOUNT: "Account does not exist",
+    KnownAuthStatusCode.NEED_CHECK_PHONE_NUMBER: "Must check phone number",
+    KnownAuthStatusCode.NEED_CHECK_QUIZ: "Must check quiz",
+    KnownAuthStatusCode.DORMANT_ACCOUNT: "Dormant account",
+    KnownAuthStatusCode.RESTRICTED_ACCOUNT: "Restricted account",
+    KnownAuthStatusCode.LOGIN_FAILED: "Login failed",
+    KnownAuthStatusCode.NOT_VERIFIED_EMAIL: "Unverified email address",
+    KnownAuthStatusCode.MOBILE_UNREGISTERED: "Mobile device not registered",
+    KnownAuthStatusCode.UNKNOWN_PHONE_NUMBER: "Unknown phone number",
+    KnownAuthStatusCode.SUCCESS_SAME_USER: "Success (same user)",
+    KnownAuthStatusCode.SUCCESS_SAME_USER_BY_MIGRATION: "Success (same user by migration)",
+    KnownAuthStatusCode.TOO_MANY_REQUEST_A_DAY: "Too many requests a day",
+    KnownAuthStatusCode.TOO_MANY_REQUEST_AT_A_TIME: " Too many requests at a time",
+    KnownAuthStatusCode.MISMATCH_PASSCODE: "Passcode mismatch",
+    KnownAuthStatusCode.EXCEED_DAILY_REQUEST_LIMIT: "Daily request limit exceeded",
+    KnownAuthStatusCode.EXCEED_DAILY_REQUEST_LIMIT_VOICECALL: "Daily voicecall limit exceeded",
+    KnownAuthStatusCode.EXCEED_DAILY_REQUEST_LIMIT_WITHOUT_TOKEN: "Daily tokenless request limit exceeded",
+    KnownAuthStatusCode.DEVICE_NOT_REGISTERED: "Device not registered",
+    KnownAuthStatusCode.ANOTHER_LOGON: "Another logon detected",
+    KnownAuthStatusCode.DEVICE_REGISTER_FAILED: "Device registration failed",
+    KnownAuthStatusCode.INVALID_DEVICE_REGISTER: "Invalid device",
+    KnownAuthStatusCode.INVALID_PASSCODE: "Invalid passcode",
+    KnownAuthStatusCode.PASSCODE_REQUEST_FAILED: "Passcode request failed",
+    KnownAuthStatusCode.NEED_TERMS_AGREE: "Must agree to terms",
+    KnownAuthStatusCode.DENIED_DEVICE_MODEL: "Denied device model",
+    KnownAuthStatusCode.RESET_STEP: "Reset step",
+    KnownAuthStatusCode.NEED_PROTECTOR_AGREE: "Must agree to protector terms",
+    KnownAuthStatusCode.ACCOUNT_RESTRICTED: "Account restricted",
+    #KnownAuthStatusCode.INVALID_STAGE_ERROR: "Same as KnownAuthStatusCode.AUTH_REQUIRED",
+    KnownAuthStatusCode.UPGRADE_REQUIRED: "Upgrade required",
+    KnownAuthStatusCode.VOICE_CALL_ONLY: "Voice call only",
+    KnownAuthStatusCode.ACCESSIBILITY_ARS_ONLY: "Accessibility only",
+    KnownAuthStatusCode.MIGRATION_FAILURE: "Migration failure",
+    KnownAuthStatusCode.INVAILD_TOKEN: "Invalid token",
+    KnownAuthStatusCode.UNDEFINED: "Undefined error",
+
+    KnownDataStatusCode.SUCCESS: "Success",
+    KnownDataStatusCode.INVALID_USER: "Invalid user",
+    KnownDataStatusCode.CLIENT_ERROR: "Client error",
+    KnownDataStatusCode.NOT_LOGON: "Not logged in",
+    KnownDataStatusCode.INVALID_METHOD: "Invalid method",
+    KnownDataStatusCode.INVALID_PARAMETER: "Invalid parameter",
+    KnownDataStatusCode.INVALID_BODY: "Invalid body",
+    KnownDataStatusCode.INVALID_HEADER: "Invalid header",
+    KnownDataStatusCode.UNAUTHORIZED_CHAT_DELETE: "Unauthorized chat deletion",
+    KnownDataStatusCode.MEDIA_SERVER_ERROR: "Media server error",
+    KnownDataStatusCode.CHAT_SPAM_LIMIT: "Chat spam limit exceeded",
+    KnownDataStatusCode.RESTRICTED_APP: "Restricted app",
+    KnownDataStatusCode.LOGINLIST_CHATLIST_FAILED: "Login chat list failed",
+    KnownDataStatusCode.MEDIA_NOT_FOUND: "Media not found",
+    KnownDataStatusCode.MEDIA_THUMB_GEN_FAILED: "Could not generate media thumbnail",
+    KnownDataStatusCode.UNSUPPORTED: "Unsupported",
+    KnownDataStatusCode.PARTIAL: "Parial",
+    KnownDataStatusCode.LINK_JOIN_TPS_EXCEEDED: "Link join TPS exceeded",
+    KnownDataStatusCode.CHAT_SEND_RESTRICTED: "Chat send restricted",
+    KnownDataStatusCode.CHANNEL_CREATE_TEMP_RESTRICTED: "Channel creation temporarily restricted",
+    KnownDataStatusCode.CHANNEL_CREATE_RESTRICTED: "Channel creation restricted",
+    KnownDataStatusCode.OPENLINK_UNAVAILABLE: "Openlink unavailable",
+    KnownDataStatusCode.INVITE_COUNT_LIMITED: "Invite count limited",
+    KnownDataStatusCode.OPENLINK_CREATE_RESTRICTED: "Openlink creation restricted",
+    KnownDataStatusCode.INVALID_CHANNEL: "Invalid channel",
+    KnownDataStatusCode.CHAT_BLOCKED_BY_FRIEND: "Blocked by friend",
+    KnownDataStatusCode.NOT_CHATABLE_USER: "Non-chattable user",
+    KnownDataStatusCode.GAME_MESSAGE_BLOCKED: "Game message blocked",
+    KnownDataStatusCode.BLOCKED_IP: "Blocked IP",
+    KnownDataStatusCode.BACKGROUND_LOGIN_BLOCKED: "Background login blocked",
+    KnownDataStatusCode.OPERATION_DENIED: "Operation denied",
+    KnownDataStatusCode.CHANNEL_USER_LIMITED: "Channel user limited",
+    KnownDataStatusCode.TEMP_RESTRICTED: "Temporarily restricted",
+    KnownDataStatusCode.WRITE_WHILE_BLOCKED: "Write while blocked",
+    KnownDataStatusCode.OPENCHAT_REJOIN_REQUIRED: "Openchat rejoin required",
+    KnownDataStatusCode.OPENCHAT_TIME_RESTRICTED: "Openchat time restricted",
+    KnownDataStatusCode.INVALID_ACCESS_TOKEN: "Invalid access token",
+    #KnownDataStatusCode.BLOCKED_ACCOUNT: "Same as KnownAuthStatusCode.ACCOUNT_RESTRICTED"
+    KnownDataStatusCode.AUTH_REQUIRED: "Authentication required",
+    #KnownDataStatusCode.UPDATE_REQUIRED = "Same as KnownAuthStatusCode.UPGRADE_REQUIRED"
+    KnownDataStatusCode.SERVER_UNDER_MAINTENANCE: "Server under maintenance",
+}
diff --git a/matrix_appservice_kakaotalk/kt/client/types.py b/matrix_appservice_kakaotalk/kt/client/types.py
new file mode 100644
index 0000000..47c94fd
--- /dev/null
+++ b/matrix_appservice_kakaotalk/kt/client/types.py
@@ -0,0 +1,35 @@
+# 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 .
+"""Custom wrapper classes around types defined by the KakaoTalk API."""
+
+from attr import dataclass
+
+from mautrix.types import SerializableAttrs
+
+from ..types.channel.channel_info import NormalChannelInfo
+from ..types.openlink.open_channel_info import OpenChannelInfo
+from ..types.user.channel_user_info import NormalChannelUserInfo, OpenChannelUserInfo
+
+
+ChannelInfoUnion = NormalChannelInfo | OpenChannelInfo
+UserInfoUnion = NormalChannelUserInfo | OpenChannelUserInfo
+
+@dataclass
+class PortalChannelInfo(SerializableAttrs):
+    name: str
+    #participants: list[PuppetUserInfo]
+    # TODO Image
+    channel_info: ChannelInfoUnion | None = None # Should be set manually by caller
diff --git a/matrix_appservice_kakaotalk/kt/types/__init__.py b/matrix_appservice_kakaotalk/kt/types/__init__.py
new file mode 100644
index 0000000..c7fef7d
--- /dev/null
+++ b/matrix_appservice_kakaotalk/kt/types/__init__.py
@@ -0,0 +1,29 @@
+# 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 .
+"""Types defined by the KakaoTalk API."""
+
+"""
+from . import api
+from .api import AuthLoginData, KnownAuthStatusCode
+from .channel import *
+from .chat import *
+from .client import *
+from .oauth import *
+from .openlink import *
+from .request import *
+from .user import *
+from .bson import Long
+"""
diff --git a/matrix_appservice_kakaotalk/kt/types/api/__init__.py b/matrix_appservice_kakaotalk/kt/types/api/__init__.py
new file mode 100644
index 0000000..55d6c91
--- /dev/null
+++ b/matrix_appservice_kakaotalk/kt/types/api/__init__.py
@@ -0,0 +1,18 @@
+# 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 .
+"""
+from .auth_api_client import *
+"""
diff --git a/matrix_appservice_kakaotalk/kt/types/api/auth_api_client.py b/matrix_appservice_kakaotalk/kt/types/api/auth_api_client.py
new file mode 100644
index 0000000..d744093
--- /dev/null
+++ b/matrix_appservice_kakaotalk/kt/types/api/auth_api_client.py
@@ -0,0 +1,101 @@
+# 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 .
+from attr import dataclass
+from enum import IntEnum
+
+from mautrix.types import SerializableAttrs
+
+from ..oauth import OAuthCredential
+
+
+@dataclass
+class AuthLoginData(OAuthCredential):
+    """aka LoginData"""
+    countryIso: str
+    countryCode: str
+    accountId: int
+    serverTime: int
+    resetUserData: bool
+    storyURL: str
+    tokenType: str
+    autoLoginAccountId: str
+    displayAccountId: str
+    mainDeviceAgentName: str
+    mainDeviceAppVersion: str
+
+
+@dataclass
+class LoginForm(SerializableAttrs):
+    email: str
+    password: str
+
+
+@dataclass
+class TokenLoginForm(LoginForm):
+    autowithlock: bool
+
+
+class KnownAuthStatusCode(IntEnum):
+    INVALID_PHONE_NUMBER = 1
+    SUCCESS_WITH_ACCOUNT = 10
+    SUCCESS_WITH_DEVICE_CHANGED = 11
+    MISMATCH_PASSWORD = 12
+    EXCEED_LOGIN_LIMIT = 13
+    MISMATCH_PHONE_NUMBER = 14
+    EXCEED_PHONE_NUMBER_CHECK_LIMIT = 15
+    NOT_EXIST_ACCOUNT = 16
+    NEED_CHECK_PHONE_NUMBER = 20
+    NEED_CHECK_QUIZ = 25
+    DORMANT_ACCOUNT = 26
+    RESTRICTED_ACCOUNT = 27
+    LOGIN_FAILED = 30
+    NOT_VERIFIED_EMAIL = 31
+    MOBILE_UNREGISTERED = 32
+    UNKNOWN_PHONE_NUMBER = 99
+    SUCCESS_SAME_USER = 100
+    SUCCESS_SAME_USER_BY_MIGRATION = 101
+    TOO_MANY_REQUEST_A_DAY = -20
+    TOO_MANY_REQUEST_AT_A_TIME = -30
+    MISMATCH_PASSCODE = -31
+    EXCEED_DAILY_REQUEST_LIMIT = -32
+    EXCEED_DAILY_REQUEST_LIMIT_VOICECALL = -33
+    EXCEED_DAILY_REQUEST_LIMIT_WITHOUT_TOKEN = -34
+    DEVICE_NOT_REGISTERED = -100
+    ANOTHER_LOGON = -101
+    DEVICE_REGISTER_FAILED = -102
+    INVALID_DEVICE_REGISTER = -110
+    INVALID_PASSCODE = -111
+    PASSCODE_REQUEST_FAILED = -112
+    NEED_TERMS_AGREE = -126
+    DENIED_DEVICE_MODEL = -132
+    RESET_STEP = -940
+    NEED_PROTECTOR_AGREE = -991
+    ACCOUNT_RESTRICTED = -997
+    INVALID_STAGE_ERROR = -998
+    UPGRADE_REQUIRED = -999
+    VOICE_CALL_ONLY = -10002
+    ACCESSIBILITY_ARS_ONLY = -10003
+    MIGRATION_FAILURE = -100001
+    INVAILD_TOKEN = -100002
+    UNDEFINED = -999999
+
+
+__all__ = [
+    "AuthLoginData",
+    "LoginForm",
+    "TokenLoginForm",
+    "KnownAuthStatusCode",
+]
diff --git a/matrix_appservice_kakaotalk/kt/types/api/struct/__init__.py b/matrix_appservice_kakaotalk/kt/types/api/struct/__init__.py
new file mode 100644
index 0000000..06fa069
--- /dev/null
+++ b/matrix_appservice_kakaotalk/kt/types/api/struct/__init__.py
@@ -0,0 +1,18 @@
+# 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 .
+"""
+from .profile import *
+"""
diff --git a/matrix_appservice_kakaotalk/kt/types/api/struct/profile.py b/matrix_appservice_kakaotalk/kt/types/api/struct/profile.py
new file mode 100644
index 0000000..6065b58
--- /dev/null
+++ b/matrix_appservice_kakaotalk/kt/types/api/struct/profile.py
@@ -0,0 +1,123 @@
+# 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 .
+from attr import dataclass
+
+from mautrix.types import SerializableAttrs, JSON
+
+from ...bson import Long
+
+
+@dataclass
+class ProfileFeedObject(SerializableAttrs):
+    type: str
+    value: str
+
+
+@dataclass(kw_only=True)
+class ProfileFeed(SerializableAttrs):
+    id: str
+    serviceName: str
+    typeIconUrl: str
+    downloadId: str
+    contents: list[ProfileFeedObject]
+    url: str
+    serviceUrl: str | None = None # NOTE Made optional
+    webUrl: str
+    serviceWebUrl: str | None = None # NOTE Made optional
+    updatedAt: int
+    cursor: int
+    feedMessage: str
+    permission: int
+    type: int
+    isCurrent: bool
+    extra: JSON # instead of "unknown"
+
+
+@dataclass(kw_only=True)
+class ProfileFeedList(SerializableAttrs):
+    totalCnt: int # NOTE Renamed from "totalCnts"
+    feeds: list[ProfileFeed]
+
+
+@dataclass
+class ProfileDecorationObject(SerializableAttrs):
+    resourceUrl: str
+
+
+@dataclass
+class ProfileDecoration(SerializableAttrs):
+    itemKind: str
+    itemId: str
+    parameters: ProfileDecorationObject
+
+
+@dataclass
+class BgEffectDecoration(ProfileDecoration):
+    itemKind = 'BgEffect'
+
+
+@dataclass
+class StickerDecoration(ProfileDecoration):
+    itemKind = 'Sticker'
+    x: int
+    y: int
+    cx: int
+    cy: int
+    width: int
+    height: int
+    rotation: int
+
+
+@dataclass
+class ProfileStruct(SerializableAttrs):
+    backgroundImageUrl: str
+    originalBackgroundImageUrl: str
+    statusMessage: str
+    profileImageUrl: str
+    fullProfileImageUrl: str
+    originalProfileImageUrl: str
+    decoration: list[ProfileDecoration]
+    profileFeeds: ProfileFeedList
+    backgroundFeeds: ProfileFeedList
+    allowStory: bool
+    allowStoryPost: bool
+    hasProfile2Photos: bool
+    allowPay: bool
+    screenToken: int
+    # NEW
+    nickname: str
+    userId: int | str | Long # NOTE Should confirm this
+    suspended: bool
+    meBadge: bool
+    # TODO feeds = {feeds: list, last: bool}
+
+
+@dataclass
+class ProfileReqStruct(SerializableAttrs):
+    profile: ProfileStruct
+    itemNewBadgeToken: int
+    lastSeenAt: int
+
+
+___all___ = [
+    "ProfileFeed",
+    "ProfileFeedList",
+    "ProfileDecoration",
+    "BgEffectDecoration",
+    "StickerDecoration",
+    "ProfileStruct",
+    "ProfileReqStruct",
+]
diff --git a/matrix_appservice_kakaotalk/kt/types/attachment/__init__.py b/matrix_appservice_kakaotalk/kt/types/attachment/__init__.py
new file mode 100644
index 0000000..9854339
--- /dev/null
+++ b/matrix_appservice_kakaotalk/kt/types/attachment/__init__.py
@@ -0,0 +1,34 @@
+# 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 .
+from attr import dataclass
+
+from mautrix.types import SerializableAttrs
+
+from ..bson import Long
+from .mention import MentionStruct
+
+
+@dataclass(kw_only=True)
+class Attachment(SerializableAttrs):
+    shout: bool | None = None
+    mentions: list[MentionStruct] | None = None
+    urls: list[str] | None = None
+
+
+@dataclass
+class PathAttachment(Attachment):
+    path: str
+    s: int
diff --git a/matrix_appservice_kakaotalk/kt/types/attachment/mention.py b/matrix_appservice_kakaotalk/kt/types/attachment/mention.py
new file mode 100644
index 0000000..103a606
--- /dev/null
+++ b/matrix_appservice_kakaotalk/kt/types/attachment/mention.py
@@ -0,0 +1,27 @@
+# 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 .
+from attr import dataclass
+
+from mautrix.types import SerializableAttrs
+
+from ..bson import Long
+
+
+@dataclass
+class MentionStruct(SerializableAttrs):
+    at: list[int]
+    len: int
+    user_id: Long | int
diff --git a/matrix_appservice_kakaotalk/kt/types/bson.py b/matrix_appservice_kakaotalk/kt/types/bson.py
new file mode 100644
index 0000000..60939cb
--- /dev/null
+++ b/matrix_appservice_kakaotalk/kt/types/bson.py
@@ -0,0 +1,60 @@
+# 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 .
+from typing import ClassVar, Optional
+
+from attr import dataclass, asdict
+import bson
+
+from mautrix.types import SerializableAttrs, JSON
+
+
+@dataclass(frozen=True)
+class Long(SerializableAttrs):
+    high: int
+    low: int
+    unsigned: bool
+
+    @classmethod
+    def from_bytes(cls, raw: bytes) -> "Long":
+        return cls(**bson.loads(raw))
+
+    @classmethod
+    def from_optional_bytes(cls, raw: bytes | None) -> Optional["Long"]:
+        return cls(**bson.loads(raw)) if raw is not None else None
+
+    @classmethod
+    def to_optional_bytes(cls, value: Optional["Long"]) -> bytes | None:
+        return bytes(value) if value is not None else None
+
+    def serialize(self) -> JSON:
+        data = super().serialize()
+        data["__type__"] = "Long"
+        return data
+
+    def __bytes__(self) -> bytes:
+        return bson.dumps(asdict(self))
+
+    def __int__(self) -> int:
+        # TODO Is this right?
+        return self.high << 32 + self.low
+
+    def __str__(self) -> str:
+        return f"{self.high << 32 if self.high else ''}{self.low}"
+
+    ZERO: ClassVar["Long"]
+
+
+Long.ZERO = Long(0, 0, False)
diff --git a/matrix_appservice_kakaotalk/kt/types/channel/__init__.py b/matrix_appservice_kakaotalk/kt/types/channel/__init__.py
new file mode 100644
index 0000000..7b5e161
--- /dev/null
+++ b/matrix_appservice_kakaotalk/kt/types/channel/__init__.py
@@ -0,0 +1,21 @@
+# 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 .
+"""
+from .channel_info import *
+from .channel_type import *
+from .channel import *
+from .meta import *
+"""
diff --git a/matrix_appservice_kakaotalk/kt/types/channel/channel.py b/matrix_appservice_kakaotalk/kt/types/channel/channel.py
new file mode 100644
index 0000000..db80101
--- /dev/null
+++ b/matrix_appservice_kakaotalk/kt/types/channel/channel.py
@@ -0,0 +1,30 @@
+# 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 .
+from attr import dataclass
+
+from mautrix.types import SerializableAttrs
+
+from ..bson import Long
+
+
+@dataclass
+class Channel(SerializableAttrs):
+    channelId: Long
+
+
+__all__ = [
+    "Channel",
+]
diff --git a/matrix_appservice_kakaotalk/kt/types/channel/channel_info.py b/matrix_appservice_kakaotalk/kt/types/channel/channel_info.py
new file mode 100644
index 0000000..b151575
--- /dev/null
+++ b/matrix_appservice_kakaotalk/kt/types/channel/channel_info.py
@@ -0,0 +1,93 @@
+# 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 .
+from typing import Generic, TypeVar
+
+from attr import dataclass
+
+from mautrix.types import SerializableAttrs, JSON
+
+from ..bson import Long
+from ..chat.chat import Chatlog
+from ..user.channel_user_info import DisplayUserInfo
+from .channel import Channel
+from .channel_type import ChannelType
+from .meta import ChannelMetaType
+
+
+@dataclass
+class ChannelMeta(SerializableAttrs):
+    content: str
+
+@dataclass
+class SetChannelMeta(ChannelMeta):
+    revision: int
+    authorId: Long
+    updatedAt: int
+
+ChannelMetaMap = dict[ChannelMetaType, SetChannelMeta] # Substitute for Record
+
+
+@dataclass(kw_only=True)
+class ChannelInfo(Channel):
+    type: ChannelType
+    activeUserCount: int
+    newChatCount: int
+    newChatCountInvalid: bool
+    lastChatLogId: Long
+    lastSeenLogId: Long
+    lastChatLog: Chatlog | None = None
+    metaMap: ChannelMetaMap
+    displayUserList: list[DisplayUserInfo]
+    pushAlert: bool
+
+
+@dataclass
+class NormalChannelInfo(ChannelInfo):
+    joinTime: int
+
+
+T = TypeVar("T", bound=SerializableAttrs)
+
+@dataclass
+class ChannelData(SerializableAttrs, Generic[T]):
+    info: T
+
+
+@dataclass
+class ChannelLoginData(SerializableAttrs, Generic[T]):
+    """aka non-auth LoginData"""
+    lastUpdate: int
+    channel: T
+
+
+@dataclass
+class NormalChannelData(Channel, ChannelData[NormalChannelInfo]):
+    @classmethod
+    def deserialize(cls, data: JSON) -> "NormalChannelData":
+        data["info"] = NormalChannelInfo.deserialize(data["info"])
+        return cls.deserialize(data)
+
+
+__all__ = [
+    "ChannelMeta",
+    "SetChannelMeta",
+    "ChannelMetaMap",
+    "ChannelInfo",
+    "NormalChannelInfo",
+    "ChannelData",
+    "ChannelLoginData",
+    "NormalChannelData",
+]
diff --git a/matrix_appservice_kakaotalk/kt/types/channel/channel_type.py b/matrix_appservice_kakaotalk/kt/types/channel/channel_type.py
new file mode 100644
index 0000000..5a0925a
--- /dev/null
+++ b/matrix_appservice_kakaotalk/kt/types/channel/channel_type.py
@@ -0,0 +1,39 @@
+# 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 .
+from typing import Union
+
+from enum import Enum
+
+
+class KnownChannelType(str, Enum):
+    MultiChat = "MultiChat"
+    DirectChat = "DirectChat"
+    PlusChat = "PlusChat"
+    MemoChat = "MemoChat"
+    OM = "OM"
+    OD = "OD"
+
+    @classmethod
+    def is_direct(cls, value: Union["KnownChannelType", str]) -> bool:
+        return str in [KnownChannelType.DirectChat, KnownChannelType.OD]
+
+
+ChannelType = KnownChannelType | str # Substitute for ChannelType = "name1" | ... | "nameN" | str
+
+
+__all__ = [
+    "ChannelType",
+]
diff --git a/matrix_appservice_kakaotalk/kt/types/channel/meta.py b/matrix_appservice_kakaotalk/kt/types/channel/meta.py
new file mode 100644
index 0000000..c2bd4c0
--- /dev/null
+++ b/matrix_appservice_kakaotalk/kt/types/channel/meta.py
@@ -0,0 +1,175 @@
+# 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 .
+from attr import dataclass
+from enum import Enum, IntEnum
+
+from mautrix.types import SerializableAttrs, field
+
+from ..bson import Long
+
+class KnownChannelMetaType(IntEnum):
+    UNDEFINED = 0
+    NOTICE = 1
+    GROUP = 2
+    TITLE = 3
+    PROFILE = 4
+    TV = 5
+    PRIVILEGE = 6
+    TV_LIVE = 7
+    PLUS_BACKGROUND = 8
+    LIVE_TALK_INFO = 11
+    LIVE_TALK_COUNT = 12
+    OPEN_CHANNEL_CHAT = 13
+    BOT = 14
+
+ChannelMetaType = KnownChannelMetaType | int
+
+
+class ChannelClientMetaType(str, Enum):
+    UNDEFINED = "undefined"
+    NAME = "name"
+    IMAGE_PATH = "image_path"
+    FAVORITE = "favorite"
+    PUSH_SOUND = "push_sound"
+    CHAT_HIDE = "chat_hide"
+    FULL_IMAGE_URL = "full_image_url"
+    IMAGE_URL = "imageUrl"
+
+
+@dataclass(kw_only=True)
+class ChannelMetaStruct(SerializableAttrs):
+    type: ChannelMetaType
+    revision: Long
+    authorId: Long | None = None
+    content: str
+    updatedAt: int
+
+
+@dataclass(kw_only=True)
+class ChannelClientMetaStruct(SerializableAttrs):
+    name: str | None = None
+    image_path: str | None = None
+    favourite: bool | None = None
+    push_sound: bool | None = None
+    chat_hide: bool | None = None
+    fullImageUrl: str | None = None
+    imageUrl: str | None = None
+
+
+@dataclass
+class PrivilegeMetaContent(SerializableAttrs):
+    pin_notice: bool
+
+
+@dataclass
+class ProfileMetaContent(SerializableAttrs):
+    imageUrl: str
+    fullImageUrl: str
+
+
+@dataclass
+class TvMetaContent(SerializableAttrs):
+    url: str
+
+
+@dataclass(kw_only=True)
+class TvLiveMetaContent(SerializableAttrs):
+    url: str
+    live: str | None = 'on'
+
+
+@dataclass
+class LiveTalkInfoOnMetaContent(SerializableAttrs):
+    liveon: bool
+    title: str
+    startTime: int
+    userId: int | Long
+    csIP: str
+    csIP6: str
+    csPort: int
+    callId: str
+
+
+@dataclass(kw_only=True)
+class LiveTalkInfoOffMetaContent(SerializableAttrs):
+    """Substitute for LiveTalkInfoOffMetaContent extends Partial"""
+    liveon: bool
+    title: str | None = None
+    startTime: int | None = None
+    userId: int | Long | None
+    csIP: str | None = None
+    csIP6: str | None = None
+    csPort: int | None = None
+    callId: str | None = None
+
+
+LiveTalkInfoMetaContent = LiveTalkInfoOnMetaContent | LiveTalkInfoOffMetaContent;
+
+
+@dataclass
+class LiveTalkCountMetaContent(SerializableAttrs):
+    count: int
+
+
+@dataclass
+class GroupMetaContent(SerializableAttrs):
+    group_id: int
+    group_name: str
+    group_profile_thumbnail_url: str
+    group_profile_url: str
+
+
+@dataclass
+class BotCommandStruct(SerializableAttrs):
+    id: str
+
+@dataclass
+class BotAddCommandStruct(BotCommandStruct):
+    name: str
+    updatedAt: int
+    botId: Long
+
+BotDelCommandStruct = BotCommandStruct
+
+
+@dataclass(kw_only=True)
+class BotMetaContent(SerializableAttrs):
+    add: list[BotAddCommandStruct] | None = None
+    update: list[BotAddCommandStruct] | None = None
+    full: list[BotAddCommandStruct] | None = None
+    delete: list[BotDelCommandStruct] | None = field(json="del", default=None)
+
+
+__all__ = [
+    "KnownChannelMetaType",
+    "ChannelMetaType",
+    "ChannelClientMetaType",
+    "ChannelMetaStruct",
+    "ChannelClientMetaStruct",
+    "PrivilegeMetaContent",
+    "ProfileMetaContent",
+    "TvMetaContent",
+    "TvLiveMetaContent",
+    "LiveTalkInfoOnMetaContent",
+    "LiveTalkInfoOffMetaContent",
+    "LiveTalkInfoMetaContent",
+    "LiveTalkCountMetaContent",
+    "GroupMetaContent",
+    "BotCommandStruct",
+    "BotAddCommandStruct",
+    "BotDelCommandStruct",
+    "BotMetaContent",
+]
diff --git a/matrix_appservice_kakaotalk/kt/types/chat/__init__.py b/matrix_appservice_kakaotalk/kt/types/chat/__init__.py
new file mode 100644
index 0000000..c0eff5d
--- /dev/null
+++ b/matrix_appservice_kakaotalk/kt/types/chat/__init__.py
@@ -0,0 +1,19 @@
+# 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 .
+"""
+from .chat_type import *
+from .chat import *
+"""
diff --git a/matrix_appservice_kakaotalk/kt/types/chat/chat.py b/matrix_appservice_kakaotalk/kt/types/chat/chat.py
new file mode 100644
index 0000000..6aeaf21
--- /dev/null
+++ b/matrix_appservice_kakaotalk/kt/types/chat/chat.py
@@ -0,0 +1,90 @@
+# 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 .
+from attr import dataclass
+
+from mautrix.types import SerializableAttrs
+
+from ..bson import Long
+from ..user.channel_user import ChannelUser
+from ..attachment import Attachment
+from .chat_type import ChatType
+
+
+@dataclass
+class ChatTypeComponent(SerializableAttrs):
+    type: ChatType # Substitute for T, where T extends ChatType = ChatType
+
+@dataclass(kw_only=True)
+class Chat(ChatTypeComponent):
+    text: str | None = None
+    attachment: Attachment | None = None
+    supplement: dict | None = None
+
+
+@dataclass
+class TypedChat(Chat, ChatTypeComponent):
+    """Substitute for TypedChat = Chat & ChatTypeComponent"""
+    pass
+
+
+@dataclass
+class ChatLogged(SerializableAttrs):
+    logId: Long
+
+@dataclass
+class ChatLoggedType(ChatLogged):
+    type: ChatType
+
+@dataclass
+class ChatLogLinked(ChatLogged):
+    prevLogId: Long
+
+
+@dataclass
+class ChatWritten(Chat):
+    sender: ChannelUser
+    sendAt: int
+    messageId: int | Long
+
+
+@dataclass
+class Chatlog(ChatLogLinked, ChatWritten):
+    pass
+
+
+@dataclass
+class TypedChatlog(Chatlog, TypedChat):
+    """Substitute for TypedChatlog = Chatlog & TypedChat"""
+    pass
+
+
+@dataclass(kw_only=True)
+class ChatOptions(SerializableAttrs):
+    shout: bool | None = None
+
+
+__all__ = [
+    "ChatTypeComponent",
+    "Chat",
+    "TypedChat",
+    "ChatLogged",
+    "ChatLoggedType",
+    "ChatLogLinked",
+    "ChatWritten",
+    "Chatlog",
+    "TypedChatlog",
+    "ChatOptions",
+]
diff --git a/matrix_appservice_kakaotalk/kt/types/chat/chat_type.py b/matrix_appservice_kakaotalk/kt/types/chat/chat_type.py
new file mode 100644
index 0000000..e65521b
--- /dev/null
+++ b/matrix_appservice_kakaotalk/kt/types/chat/chat_type.py
@@ -0,0 +1,67 @@
+# 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 .
+from enum import IntEnum
+
+
+class KnownChatType(IntEnum):
+    FEED = 0
+    TEXT = 1
+    PHOTO = 2
+    VIDEO = 3
+    CONTACT = 4
+    AUDIO = 5
+    DITEMEMOTICON = 6
+    DITEMGIFT = 7
+    DITEMIMG = 8
+    KAKAOLINKV1 = 9
+    AVATAR = 11
+    STICKER = 12
+    SCHEDULE = 13
+    VOTE = 14
+    LOTTERY = 15
+    MAP = 16
+    PROFILE = 17
+    FILE = 18
+    STICKERANI = 20
+    NUDGE = 21
+    ACTIONCON = 22
+    SEARCH = 23
+    POST = 24
+    STICKERGIF = 25
+    REPLY = 26
+    MULTIPHOTO = 27
+    VOIP = 51
+    LIVETALK = 52
+    CUSTOM = 71
+    ALIM = 72
+    PLUSFRIEND = 81
+    PLUSEVENT = 82
+    PLUSFRIENDVIRAL = 83
+    OPEN_SCHEDULE = 96
+    OPEN_VOTE = 97
+    OPEN_POST = 98
+
+ChatType = KnownChatType | int
+
+
+DELETED_MESSAGE_OFFSET = 16384;
+
+
+__all__ = [
+    "KnownChatType",
+    "ChatType",
+    "DELETED_MESSAGE_OFFSET",
+]
diff --git a/matrix_appservice_kakaotalk/kt/types/client/__init__.py b/matrix_appservice_kakaotalk/kt/types/client/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/matrix_appservice_kakaotalk/kt/types/client/client_session.py b/matrix_appservice_kakaotalk/kt/types/client/client_session.py
new file mode 100644
index 0000000..c6c7b2b
--- /dev/null
+++ b/matrix_appservice_kakaotalk/kt/types/client/client_session.py
@@ -0,0 +1,57 @@
+# 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 .
+from typing import NewType
+
+from attr import dataclass
+
+from mautrix.types import SerializableAttrs, JSON, deserializer
+
+from ..bson import Long
+from ..channel.channel_info import ChannelLoginData, NormalChannelData
+from ..openlink.open_channel_info import OpenChannelData
+
+
+ChannelLoginDataItem = NewType("ChannelLoginDataItem", ChannelLoginData[NormalChannelData | OpenChannelData])
+
+@deserializer(ChannelLoginDataItem)
+def deserialize_channel_login_data_item(data: JSON) -> ChannelLoginDataItem:
+    channel_data = data["channel"]
+    if "linkId" in channel_data:
+        data["channel"] = OpenChannelData.deserialize(channel_data)
+    else:
+        data["channel"] = NormalChannelData.deserialize(channel_data)
+    return ChannelLoginData.deserialize(data)
+
+setattr(ChannelLoginDataItem, "deserialize", deserialize_channel_login_data_item)
+
+
+@dataclass
+class LoginResult(SerializableAttrs):
+    """Return value of TalkClient.login"""
+    channelList: list[ChannelLoginDataItem] 
+    userId: Long
+    lastChannelId: Long
+    lastTokenId: Long
+    mcmRevision: int
+    removedChannelIdList: list[Long]
+    revision: int
+    revisionInfo: str
+    minLogId: Long
+
+
+__all__ = [
+    "LoginResult",
+]
diff --git a/matrix_appservice_kakaotalk/kt/types/oauth.py b/matrix_appservice_kakaotalk/kt/types/oauth.py
new file mode 100644
index 0000000..605c406
--- /dev/null
+++ b/matrix_appservice_kakaotalk/kt/types/oauth.py
@@ -0,0 +1,41 @@
+# 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 .
+from attr import dataclass
+
+from mautrix.types import SerializableAttrs
+
+from .bson import Long
+
+
+@dataclass
+class OAuthCredential(SerializableAttrs):
+    userId: Long
+    deviceUUID: str
+    accessToken: str
+    refreshToken: str
+
+
+@dataclass
+class OAuthInfo(SerializableAttrs):
+    type: str
+    credential: OAuthCredential
+    expiresIn: int
+
+
+__all__ = [
+    "OAuthCredential",
+    "OAuthInfo",
+]
diff --git a/matrix_appservice_kakaotalk/kt/types/openlink/__init__.py b/matrix_appservice_kakaotalk/kt/types/openlink/__init__.py
new file mode 100644
index 0000000..a850328
--- /dev/null
+++ b/matrix_appservice_kakaotalk/kt/types/openlink/__init__.py
@@ -0,0 +1,146 @@
+# 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 .
+"""
+from .open_channel_info import *
+from .open_channel import *
+from .open_link_type import *
+from .open_link_user_info import *
+"""
+
+
+from typing import TYPE_CHECKING
+
+from attr import dataclass
+from enum import IntEnum
+
+from mautrix.types import SerializableAttrs
+
+from ..bson import Long
+from .open_link_type import OpenLinkType
+
+if TYPE_CHECKING:
+    from .open_link_user_info import OpenLinkUserInfo
+
+
+@dataclass
+class OpenLinkComponent(SerializableAttrs):
+    linkId: Long
+
+
+@dataclass
+class OpenTokenComponent(SerializableAttrs):
+    openToken: int
+
+
+# Moved before OpenPrivilegeComponent which requires this
+class KnownLinkPrivilegeMask(IntEnum):
+    URL_SHARABLE = 2
+    REPORTABLE = 4
+    PROFILE_EDITABLE = 8
+    ANY_PROFILE_ALLOWED = 32
+    USE_PASS_CODE = 64
+    BLINDABLE = 128
+    NON_SPECIAL_LINK = 512
+    USE_BOT = 1024
+
+LinkPrivilegeMask = KnownLinkPrivilegeMask | int | Long;
+
+
+@dataclass
+class OpenPrivilegeComponent(SerializableAttrs):
+    privilege: LinkPrivilegeMask
+
+
+@dataclass(kw_only=True)
+class OpenLinkSettings(SerializableAttrs):
+    linkName: str
+    linkCoverURL: str | None = None
+    description: str | None = None
+    searchable: bool
+    activated: bool
+
+
+@dataclass
+class OpenLink(OpenLinkSettings, OpenLinkComponent, OpenTokenComponent, OpenPrivilegeComponent):
+    type: OpenLinkType
+    linkURL: str
+    openToken: int
+    linkOwner: "OpenLinkUserInfo"
+    profileTagList: list[str]
+    createdAt: int
+
+
+@dataclass
+class OpenLinkChannelInfo(SerializableAttrs):
+    userLimit: int
+
+
+@dataclass
+class OpenLinkProfileInfo(SerializableAttrs):
+    directLimit: int
+
+
+@dataclass
+class OpenLinkInfo(OpenLinkChannelInfo, OpenLinkProfileInfo):
+    pass
+
+
+@dataclass
+class InformedOpenLink(SerializableAttrs):
+    openLink: OpenLink
+    info: OpenLinkInfo
+
+
+# KnownLinkPrivilegeMask and LinkPrivilegeMask moved from here
+
+
+@dataclass(kw_only=True)
+class OpenLinkUpdateTemplate(SerializableAttrs):
+    passcode: str | None = None
+
+
+@dataclass(kw_only=True)
+class OpenLinkCreateTemplate(SerializableAttrs):
+    mainProfileOnly: bool | None = None
+
+
+@dataclass
+class OpenLinkProfileTemplate(OpenLinkSettings, OpenLinkProfileInfo):
+    tags: str
+
+
+@dataclass
+class OpenLinkChannelTemplate(OpenLinkSettings, OpenLinkChannelInfo):
+    pass
+
+
+__all__ = [
+    "OpenLinkComponent",
+    "OpenTokenComponent",
+    "KnownLinkPrivilegeMask",
+    "LinkPrivilegeMask",
+    "OpenPrivilegeComponent",
+    "OpenLinkSettings",
+    "OpenLink",
+    "OpenLinkChannelInfo",
+    "OpenLinkProfileInfo",
+    "OpenLinkInfo",
+    "InformedOpenLink",
+    "OpenLinkUpdateTemplate",
+    "OpenLinkCreateTemplate",
+    "OpenLinkProfileTemplate",
+    "OpenLinkChannelTemplate",
+]
diff --git a/matrix_appservice_kakaotalk/kt/types/openlink/open_channel.py b/matrix_appservice_kakaotalk/kt/types/openlink/open_channel.py
new file mode 100644
index 0000000..240c63d
--- /dev/null
+++ b/matrix_appservice_kakaotalk/kt/types/openlink/open_channel.py
@@ -0,0 +1,29 @@
+# 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 .
+from attr import dataclass
+
+from ..channel.channel import Channel
+from . import OpenLinkComponent
+
+
+@dataclass
+class OpenChannel(Channel, OpenLinkComponent):
+    pass
+
+
+__all__ = [
+    "OpenChannel",
+]
diff --git a/matrix_appservice_kakaotalk/kt/types/openlink/open_channel_info.py b/matrix_appservice_kakaotalk/kt/types/openlink/open_channel_info.py
new file mode 100644
index 0000000..425a097
--- /dev/null
+++ b/matrix_appservice_kakaotalk/kt/types/openlink/open_channel_info.py
@@ -0,0 +1,42 @@
+# 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 .
+from attr import dataclass
+
+from mautrix.types import JSON
+
+from ..channel.channel_info import ChannelInfo, ChannelData
+from .open_channel import OpenChannel
+from . import OpenTokenComponent, OpenLink
+
+
+@dataclass(kw_only=True)
+class OpenChannelInfo(ChannelInfo, OpenChannel, OpenTokenComponent):
+    directChannel: bool
+    openLink: OpenLink | None = None
+
+
+@dataclass
+class OpenChannelData(OpenChannel, ChannelData[OpenChannelInfo]):
+    @classmethod
+    def deserialize(cls, data: JSON) -> "OpenChannelData":
+        data["info"] = OpenChannelInfo.deserialize(data["info"])
+        return super().deserialize(data)
+
+
+__all__ = [
+    "OpenChannelInfo",
+    "OpenChannelData",
+]
diff --git a/matrix_appservice_kakaotalk/kt/types/openlink/open_link_type.py b/matrix_appservice_kakaotalk/kt/types/openlink/open_link_type.py
new file mode 100644
index 0000000..82efaec
--- /dev/null
+++ b/matrix_appservice_kakaotalk/kt/types/openlink/open_link_type.py
@@ -0,0 +1,50 @@
+# 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 .
+from enum import IntEnum
+
+
+class OpenLinkType(IntEnum):
+    PROFILE = 1
+    CHANNEL = 2
+
+
+class OpenChannelUserPerm(IntEnum):
+    OWNER = 1
+    NONE = 2
+    MANAGER = 4
+    BOT = 8
+
+
+class OpenProfileType(IntEnum):
+    MAIN = 1
+    KAKAO_ANON = 2
+    KAKAO_ANON_2 = 4
+    UNKNOWN_1 = 8
+    OPEN_PROFILE = 16
+
+
+class OpenChannelType(IntEnum):
+    UNKNOWN = 0
+    DIRECT = 1
+    GROUP = 2
+
+
+__all__ = [
+    "OpenLinkType",
+    "OpenChannelUserPerm",
+    "OpenProfileType",
+    "OpenChannelType",
+]
diff --git a/matrix_appservice_kakaotalk/kt/types/openlink/open_link_user_info.py b/matrix_appservice_kakaotalk/kt/types/openlink/open_link_user_info.py
new file mode 100644
index 0000000..13b664b
--- /dev/null
+++ b/matrix_appservice_kakaotalk/kt/types/openlink/open_link_user_info.py
@@ -0,0 +1,61 @@
+# 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 .
+from attr import dataclass
+
+from ..bson import Long
+from ..user.channel_user import ChannelUser
+from ..user.channel_user_info import DisplayUserInfo, OpenChannelUserInfo
+from . import OpenTokenComponent, OpenLinkComponent, OpenPrivilegeComponent
+from .open_link_type import OpenChannelUserPerm, OpenProfileType
+
+@dataclass
+class OpenLinkKickedUser(ChannelUser):
+    kickedChannelId: Long
+
+
+@dataclass
+class OpenLinkKickedUserInfo(OpenLinkKickedUser, DisplayUserInfo):
+    pass
+
+
+@dataclass
+class OpenLinkUserInfo(OpenLinkComponent, OpenTokenComponent, OpenPrivilegeComponent):
+    nickname: str
+    profileURL: str
+    fullProfileURL: str
+    originalProfileURL: str
+    profileType: OpenProfileType
+    perm: OpenChannelUserPerm
+
+
+@dataclass
+class OpenChannelUserInfoMix(OpenLinkComponent, OpenChannelUserInfo):
+    """Substitute for OpenChannelUserInfo = OpenLinkComponent & OpenChannelUserInfo"""
+    pass
+
+
+@dataclass
+class OpenLinkChannelUserInfo(OpenLinkUserInfo, OpenChannelUserInfoMix):
+    pass
+
+
+__all__ = [
+    "OpenLinkKickedUser",
+    "OpenLinkKickedUserInfo",
+    "OpenLinkUserInfo",
+    "OpenChannelUserInfoMix",
+    "OpenLinkChannelUserInfo",
+]
diff --git a/matrix_appservice_kakaotalk/kt/types/request.py b/matrix_appservice_kakaotalk/kt/types/request.py
new file mode 100644
index 0000000..204ada3
--- /dev/null
+++ b/matrix_appservice_kakaotalk/kt/types/request.py
@@ -0,0 +1,114 @@
+# 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 .
+from typing import Generic, Type, TypeVar
+
+from attr import dataclass
+from enum import IntEnum
+
+from mautrix.types import SerializableAttrs, JSON
+
+from .api.auth_api_client import KnownAuthStatusCode
+
+
+class KnownDataStatusCode(IntEnum):
+    SUCCESS = 0
+    INVALID_USER = -1
+    CLIENT_ERROR = -200
+    NOT_LOGON = -201
+    INVALID_METHOD = -202
+    INVALID_PARAMETER = -203
+    INVALID_BODY = -203
+    INVALID_HEADER = -204
+    UNAUTHORIZED_CHAT_DELETE = -210
+    MEDIA_SERVER_ERROR = -300
+    CHAT_SPAM_LIMIT = -303
+    RESTRICTED_APP = -304
+    LOGINLIST_CHATLIST_FAILED = -305
+    MEDIA_NOT_FOUND = -306
+    MEDIA_THUMB_GEN_FAILED = -307
+    UNSUPPORTED = -308
+    PARTIAL = -310
+    LINK_JOIN_TPS_EXCEEDED = -312
+    CHAT_SEND_RESTRICTED = -321
+    CHANNEL_CREATE_TEMP_RESTRICTED = -322
+    CHANNEL_CREATE_RESTRICTED = -323
+    OPENLINK_UNAVAILABLE = -324
+    INVITE_COUNT_LIMITED = -325
+    OPENLINK_CREATE_RESTRICTED = -326
+    INVALID_CHANNEL = -401
+    CHAT_BLOCKED_BY_FRIEND = -402
+    NOT_CHATABLE_USER = -403
+    GAME_MESSAGE_BLOCKED = -406
+    BLOCKED_IP = -444
+    BACKGROUND_LOGIN_BLOCKED = -445
+    OPERATION_DENIED = -500
+    CHANNEL_USER_LIMITED = -501
+    TEMP_RESTRICTED = -805
+    WRITE_WHILE_BLOCKED = -814
+    OPENCHAT_REJOIN_REQUIRED = -815
+    OPENCHAT_TIME_RESTRICTED = -819
+    INVALID_ACCESS_TOKEN = -950
+    BLOCKED_ACCOUNT = -997
+    AUTH_REQUIRED = -998
+    UPDATE_REQUIRED = -999
+    SERVER_UNDER_MAINTENANCE = -9797
+
+DataStatusCode = KnownDataStatusCode | int
+
+
+@dataclass
+class ResponseState(SerializableAttrs):
+    status: DataStatusCode | KnownAuthStatusCode # NOTE Added KnownAuthStatusCode
+
+
+@dataclass
+class RootCommandResult(ResponseState):
+    """For brevity, this also encompasses CommandResultFailed and CommandResultDoneVoid"""
+    success: bool
+
+
+ResultType = TypeVar("ResultType", bound=SerializableAttrs)
+
+@dataclass
+class CommandResultDoneValue(RootCommandResult, Generic[ResultType]):
+    result: ResultType
+
+    @classmethod
+    def deserialize_result(
+        cls, result_type: Type[ResultType], data: JSON
+    ) -> "CommandResultDoneValue[ResultType]":
+        data["result"] = result_type.deserialize(data["result"])
+        return cls.deserialize(data)
+
+
+def deserialize_result(
+    result_type: Type[ResultType], data: JSON
+) -> CommandResultDoneValue[ResultType] | RootCommandResult:
+    """Returns equivalent of CommandResult. Does no consistency checking on success & result properties."""
+    if "result" in data:
+        # TODO Allow arbitrary result object?
+        return CommandResultDoneValue.deserialize_result(result_type, data)
+    else:
+        return RootCommandResult.deserialize(data)
+
+
+__all__ = [
+    "KnownDataStatusCode",
+    "DataStatusCode",
+    "ResponseState",
+    "RootCommandResult",
+    "CommandResultDoneValue",
+]
diff --git a/matrix_appservice_kakaotalk/kt/types/user/__init__.py b/matrix_appservice_kakaotalk/kt/types/user/__init__.py
new file mode 100644
index 0000000..c169249
--- /dev/null
+++ b/matrix_appservice_kakaotalk/kt/types/user/__init__.py
@@ -0,0 +1,20 @@
+# 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 .
+"""
+from .channel_user_info import *
+from .channel_user import *
+from .user_type import *
+"""
diff --git a/matrix_appservice_kakaotalk/kt/types/user/channel_user.py b/matrix_appservice_kakaotalk/kt/types/user/channel_user.py
new file mode 100644
index 0000000..914e2ac
--- /dev/null
+++ b/matrix_appservice_kakaotalk/kt/types/user/channel_user.py
@@ -0,0 +1,43 @@
+# 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 .
+from attr import dataclass
+
+from mautrix.types import SerializableAttrs
+
+from ..bson import Long
+
+
+@dataclass
+class ChannelUser(SerializableAttrs):
+    userId: Long
+
+
+@dataclass(kw_only=True)
+class PartialOpenLinkComponent(SerializableAttrs):
+    """Substitute for Partial"""
+    linkId: Long | None = None
+
+
+@dataclass
+class OpenChannelUser(ChannelUser, PartialOpenLinkComponent):
+    pass
+
+
+__all__ = [
+    "ChannelUser",
+    "PartialOpenLinkComponent",
+    "OpenChannelUser",
+]
diff --git a/matrix_appservice_kakaotalk/kt/types/user/channel_user_info.py b/matrix_appservice_kakaotalk/kt/types/user/channel_user_info.py
new file mode 100644
index 0000000..2f44a7a
--- /dev/null
+++ b/matrix_appservice_kakaotalk/kt/types/user/channel_user_info.py
@@ -0,0 +1,57 @@
+# 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 .
+from attr import dataclass
+
+from ..openlink.open_link_type import OpenChannelUserPerm
+from ..openlink import OpenTokenComponent
+from .channel_user import ChannelUser, OpenChannelUser
+from .user_type import UserType
+
+
+@dataclass
+class DisplayUserInfo(ChannelUser):
+    nickname: str
+    profileURL: str
+
+
+@dataclass
+class ChannelUserInfo(DisplayUserInfo):
+    fullProfileURL: str
+    originalProfileURL: str
+    userType: UserType
+
+
+@dataclass
+class NormalChannelUserInfo(ChannelUserInfo):
+    countryIso: str
+    accountId: int
+    statusMessage: str
+    linkedServices: str
+    ut: int
+    suspended: bool
+
+
+@dataclass
+class OpenChannelUserInfo(OpenChannelUser, ChannelUserInfo, OpenTokenComponent):
+    perm: OpenChannelUserPerm
+
+
+__all__ = [
+    "DisplayUserInfo",
+    "ChannelUserInfo",
+    "NormalChannelUserInfo",
+    "OpenChannelUserInfo",
+]
diff --git a/matrix_appservice_kakaotalk/kt/types/user/user_type.py b/matrix_appservice_kakaotalk/kt/types/user/user_type.py
new file mode 100644
index 0000000..a3208a1
--- /dev/null
+++ b/matrix_appservice_kakaotalk/kt/types/user/user_type.py
@@ -0,0 +1,29 @@
+# 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 .
+from enum import IntEnum
+
+
+class UserType(IntEnum):
+    UNDEFINED = -999999
+    NOT_FRIEND = -100
+    DEACTIVATED = 9
+    FRIEND = 100
+    OPEN_PROFILE = 1000
+
+
+__all__ = [
+    "UserType",
+]
diff --git a/matrix_appservice_kakaotalk/matrix.py b/matrix_appservice_kakaotalk/matrix.py
new file mode 100644
index 0000000..c4ab31d
--- /dev/null
+++ b/matrix_appservice_kakaotalk/matrix.py
@@ -0,0 +1,265 @@
+# 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 .
+from __future__ import annotations
+
+from typing import TYPE_CHECKING
+import time
+
+from mautrix.bridge import BaseMatrixHandler
+from mautrix.errors import MatrixError
+from mautrix.types import (
+    Event,
+    EventID,
+    EventType,
+    MessageType,
+    PresenceEvent,
+    ReactionEvent,
+    ReactionEventContent,
+    ReceiptEvent,
+    RedactionEvent,
+    RelationType,
+    RoomID,
+    SingleReceiptEventContent,
+    TextMessageEventContent,
+    TypingEvent,
+    UserID,
+)
+
+from . import portal as po, puppet as pu, user as u
+from .db import Message as DBMessage
+
+if TYPE_CHECKING:
+    from .__main__ import KakaoTalkBridge
+
+
+class MatrixHandler(BaseMatrixHandler):
+    def __init__(self, bridge: KakaoTalkBridge) -> None:
+        prefix, suffix = bridge.config["bridge.username_template"].format(userid=":").split(":")
+        homeserver = bridge.config["homeserver.domain"]
+        self.user_id_prefix = f"@{prefix}"
+        self.user_id_suffix = f"{suffix}:{homeserver}"
+        super().__init__(bridge=bridge)
+
+    async def send_welcome_message(self, room_id: RoomID, inviter: u.User) -> None:
+        await super().send_welcome_message(room_id, inviter)
+        if not inviter.notice_room:
+            inviter.notice_room = room_id
+            await inviter.save()
+            await self.az.intent.send_notice(
+                room_id, "This room has been marked as your KakaoTalk bridge notice room."
+            )
+
+    async def handle_puppet_invite(
+        self, room_id: RoomID, puppet: pu.Puppet, invited_by: u.User, event_id: EventID
+    ) -> None:
+        intent = puppet.default_mxid_intent
+        self.log.debug(f"{invited_by.mxid} invited puppet for {puppet.ktid} to {room_id}")
+        if not await invited_by.is_logged_in():
+            await intent.error_and_leave(
+                room_id,
+                text="Please log in before inviting KakaoTalk puppets to private chats.",
+            )
+            return
+
+        portal = await po.Portal.get_by_mxid(room_id)
+        if portal:
+            if portal.is_direct:
+                await intent.error_and_leave(
+                    room_id, text="You can not invite additional users to private chats."
+                )
+                return
+            # TODO add KakaoTalk inviting
+            # await portal.invite_kakaotalk(inviter, puppet)
+            # await intent.join_room(room_id)
+            return
+        await intent.join_room(room_id)
+        try:
+            members = await intent.get_room_members(room_id)
+        except MatrixError:
+            self.log.exception(f"Failed to get member list after joining {room_id}")
+            await intent.leave_room(room_id)
+            return
+        if len(members) > 2:
+            # TODO add KakaoTalk group creating
+            await intent.send_notice(
+                room_id, "You can not invite KakaoTalk puppets to multi-user rooms."
+            )
+            await intent.leave_room(room_id)
+            return
+        portal = await po.Portal.get_by_ktid(
+            puppet.ktid, fb_receiver=invited_by.ktid # TODO kt_type=??
+        )
+        if portal.mxid:
+            try:
+                await intent.invite_user(portal.mxid, invited_by.mxid, check_cache=False)
+                await intent.send_notice(
+                    room_id,
+                    text=f"You already have a private chat with me in room {portal.mxid}",
+                    html=(
+                        "You already have a private chat with me: "
+                        f"Link to room"
+                    ),
+                )
+                await intent.leave_room(room_id)
+                return
+            except MatrixError:
+                pass
+        portal.mxid = room_id
+        e2be_ok = await portal.check_dm_encryption()
+        await portal.save()
+        if e2be_ok is True:
+            evt_type, content = await self.e2ee.encrypt(
+                room_id,
+                EventType.ROOM_MESSAGE,
+                TextMessageEventContent(
+                    msgtype=MessageType.NOTICE,
+                    body="Portal to private chat created and end-to-bridge encryption enabled.",
+                ),
+            )
+            await intent.send_message_event(room_id, evt_type, content)
+        else:
+            message = "Portal to private chat created."
+            if e2be_ok is False:
+                message += "\n\nWarning: Failed to enable end-to-bridge encryption"
+            await intent.send_notice(room_id, message)
+
+    async def handle_invite(
+        self, room_id: RoomID, user_id: UserID, invited_by: u.User, event_id: EventID
+    ) -> None:
+        # TODO handle puppet and user invites for group chats
+        # The rest can probably be ignored
+        pass
+
+    async def handle_join(self, room_id: RoomID, user_id: UserID, event_id: EventID) -> None:
+        user = await u.User.get_by_mxid(user_id)
+
+        portal = await po.Portal.get_by_mxid(room_id)
+        if not portal:
+            return
+
+        if not user.relay_whitelisted:
+            await portal.main_intent.kick_user(
+                room_id, user.mxid, "You are not whitelisted on this KakaoTalk bridge."
+            )
+            return
+        elif (
+            not await user.is_logged_in()
+            and not portal.has_relay
+            and not self.config["bridge.allow_invites"]
+        ):
+            await portal.main_intent.kick_user(
+                room_id, user.mxid, "You are not logged in to this KakaoTalk bridge."
+            )
+            return
+
+        self.log.debug(f"{user.mxid} joined {room_id}")
+        # await portal.join_matrix(user, event_id)
+
+    async def handle_leave(self, room_id: RoomID, user_id: UserID, event_id: EventID) -> None:
+        portal = await po.Portal.get_by_mxid(room_id)
+        if not portal:
+            return
+
+        user = await u.User.get_by_mxid(user_id, create=False)
+        if not user:
+            return
+
+        await portal.handle_matrix_leave(user)
+
+    @staticmethod
+    async def handle_redaction(
+        room_id: RoomID, user_id: UserID, event_id: EventID, redaction_event_id: EventID
+    ) -> None:
+        user = await u.User.get_by_mxid(user_id)
+        if not user:
+            return
+
+        portal = await po.Portal.get_by_mxid(room_id)
+        if not portal:
+            return
+
+        await portal.handle_matrix_redaction(user, event_id, redaction_event_id)
+
+    @classmethod
+    async def handle_reaction(
+        cls,
+        room_id: RoomID,
+        user_id: UserID,
+        event_id: EventID,
+        content: ReactionEventContent,
+    ) -> None:
+        if content.relates_to.rel_type != RelationType.ANNOTATION:
+            cls.log.debug(
+                f"Ignoring m.reaction event in {room_id} from {user_id} with unexpected "
+                f"relation type {content.relates_to.rel_type}"
+            )
+            return
+        user = await u.User.get_by_mxid(user_id)
+        if not user:
+            return
+
+        portal = await po.Portal.get_by_mxid(room_id)
+        if not portal:
+            return
+
+        await portal.handle_matrix_reaction(
+            user, event_id, content.relates_to.event_id, content.relates_to.key
+        )
+
+    @staticmethod
+    async def handle_typing(room_id: RoomID, typing: list[UserID]) -> None:
+        portal = await po.Portal.get_by_mxid(room_id)
+        if not portal or not portal.is_direct:
+            return
+
+        await portal.handle_matrix_typing(set(typing))
+
+    async def handle_read_receipt(
+        self,
+        user: u.User,
+        portal: po.Portal,
+        event_id: EventID,
+        data: SingleReceiptEventContent,
+    ) -> None:
+        self.log.info("TODO")
+        """
+        if not user.mqtt:
+            return
+        timestamp = data.get("ts", int(time.time() * 1000))
+        message = await DBMessage.get_by_mxid(event_id, portal.mxid)
+        await user.mqtt.mark_read(
+            portal.ktid,
+            True, # TODO
+            #portal.fb_type != ThreadType.USER,
+            read_to=message.timestamp if message else timestamp,
+        )
+        """
+
+    async def handle_ephemeral_event(
+        self, evt: ReceiptEvent | PresenceEvent | TypingEvent
+    ) -> None:
+        if evt.type == EventType.TYPING:
+            await self.handle_typing(evt.room_id, evt.content.user_ids)
+        elif evt.type == EventType.RECEIPT:
+            await self.handle_receipt(evt)
+
+    async def handle_event(self, evt: Event) -> None:
+        if evt.type == EventType.ROOM_REDACTION:
+            evt: RedactionEvent
+            await self.handle_redaction(evt.room_id, evt.sender, evt.redacts, evt.event_id)
+        elif evt.type == EventType.REACTION:
+            evt: ReactionEvent
+            await self.handle_reaction(evt.room_id, evt.sender, evt.event_id, evt.content)
diff --git a/matrix_appservice_kakaotalk/portal.py b/matrix_appservice_kakaotalk/portal.py
new file mode 100644
index 0000000..e1d82a1
--- /dev/null
+++ b/matrix_appservice_kakaotalk/portal.py
@@ -0,0 +1,861 @@
+# 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 .
+from __future__ import annotations
+
+from typing import TYPE_CHECKING, Any, AsyncGenerator, Pattern, cast
+from collections import deque
+import asyncio
+import re
+
+from mautrix.appservice import IntentAPI
+from mautrix.bridge import BasePortal, NotificationDisabler, async_getter_lock
+from mautrix.errors import MatrixError
+from mautrix.types import (
+    ContentURI,
+    EventID,
+    EventType,
+    LocationMessageEventContent,
+    MediaMessageEventContent,
+    Membership,
+    MessageEventContent,
+    MessageType,
+    RoomID,
+    TextMessageEventContent,
+    UserID,
+)
+from mautrix.util.message_send_checkpoint import MessageSendCheckpointStatus
+from mautrix.util.simple_lock import SimpleLock
+
+from . import matrix as m, puppet as p, user as u
+from .config import Config
+from .db import (
+    Message as DBMessage,
+    Portal as DBPortal,
+)
+
+from .kt.types.bson import Long
+from .kt.types.channel.channel_type import KnownChannelType, ChannelType
+from .kt.types.user.channel_user_info import DisplayUserInfo
+
+from .kt.client.types import PortalChannelInfo
+
+if TYPE_CHECKING:
+    from .__main__ import KakaoTalkBridge
+
+try:
+    from PIL import Image
+except ImportError:
+    Image = None
+
+try:
+    from mautrix.crypto.attachments import decrypt_attachment, encrypt_attachment
+except ImportError:
+    decrypt_attachment = encrypt_attachment = None
+
+geo_uri_regex: Pattern = re.compile(r"^geo:(-?\d+.\d+),(-?\d+.\d+)$")
+
+
+class FakeLock:
+    async def __aenter__(self) -> None:
+        pass
+
+    async def __aexit__(self, exc_type, exc, tb) -> None:
+        pass
+
+
+StateBridge = EventType.find("m.bridge", EventType.Class.STATE)
+StateHalfShotBridge = EventType.find("uk.half-shot.bridge", EventType.Class.STATE)
+
+
+class Portal(DBPortal, BasePortal):
+    invite_own_puppet_to_pm: bool = False
+    by_mxid: dict[RoomID, Portal] = {}
+    by_ktid: dict[tuple[Long, Long], Portal] = {}
+    matrix: m.MatrixHandler
+    config: Config
+
+    _main_intent: IntentAPI | None
+    _create_room_lock: asyncio.Lock
+    _dedup: deque[str]
+    _oti_dedup: dict[int, DBMessage]
+    _send_locks: dict[int, asyncio.Lock]
+    _noop_lock: FakeLock = FakeLock()
+    _typing: set[UserID]
+    backfill_lock: SimpleLock
+    _backfill_leave: set[IntentAPI] | None
+
+    def __init__(
+        self,
+        ktid: Long,
+        kt_receiver: Long,
+        kt_type: ChannelType,
+        mxid: RoomID | None = None,
+        name: str | None = None,
+        photo_id: str | None = None,
+        avatar_url: ContentURI | None = None,
+        encrypted: bool = False,
+        name_set: bool = False,
+        avatar_set: bool = False,
+        relay_user_id: UserID | None = None,
+    ) -> None:
+        super().__init__(
+            ktid,
+            kt_receiver,
+            kt_type,
+            mxid,
+            name,
+            photo_id,
+            avatar_url,
+            encrypted,
+            name_set,
+            avatar_set,
+            relay_user_id,
+        )
+        self.log = self.log.getChild(self.ktid_log)
+
+        self._main_intent = None
+        self._create_room_lock = asyncio.Lock()
+        self._dedup = deque(maxlen=100)
+        self._oti_dedup = {}
+        self._send_locks = {}
+        self._typing = set()
+
+        self.backfill_lock = SimpleLock(
+            "Waiting for backfilling to finish before handling %s", log=self.log
+        )
+        self._backfill_leave = None
+
+        self._relay_user = None
+
+    @classmethod
+    def init_cls(cls, bridge: KakaoTalkBridge) -> None:
+        BasePortal.bridge = bridge
+        cls.az = bridge.az
+        cls.config = bridge.config
+        cls.loop = bridge.loop
+        cls.matrix = bridge.matrix
+        cls.invite_own_puppet_to_pm = cls.config["bridge.invite_own_puppet_to_pm"]
+        NotificationDisabler.puppet_cls = p.Puppet
+        NotificationDisabler.config_enabled = cls.config["bridge.backfill.disable_notifications"]
+
+    # region DB conversion
+
+    async def delete(self) -> None:
+        if self.mxid:
+            await DBMessage.delete_all_by_room(self.mxid)
+        self.by_ktid.pop(self.ktid_full, None)
+        self.by_mxid.pop(self.mxid, None)
+        await super().delete()
+
+    # endregion
+    # region Properties
+
+    @property
+    def ktid_full(self) -> tuple[Long, Long]:
+        return self.ktid, self.kt_receiver
+
+    @property
+    def ktid_log(self) -> str:
+        if self.is_direct:
+            return f"{self.ktid}<->{self.kt_receiver}"
+        return str(self.ktid)
+
+    @property
+    def is_direct(self) -> bool:
+        return KnownChannelType.is_direct(self.kt_type)
+
+    @property
+    def main_intent(self) -> IntentAPI:
+        if not self._main_intent:
+            raise ValueError("Portal must be postinit()ed before main_intent can be used")
+        return self._main_intent
+
+    # endregion
+    # region Chat info updating
+
+    async def update_info(
+        self,
+        source: u.User,
+        info: PortalChannelInfo,
+        force_save: bool = False,
+    ) -> None:
+        changed = False
+        if not self.is_direct:
+            changed = any(
+                await asyncio.gather(
+                    self._update_name(info.name),
+                    # TODO
+                    #self._update_photo(source, info.image),
+                )
+            )
+        changed = await self._update_participants(source, info.channel_info.displayUserList) or changed
+        if changed or force_save:
+            await self.update_bridge_info()
+            await self.save()
+
+    """
+    @classmethod
+    async def _reupload_kt_file(
+        cls,
+        url: str,
+        source: u.User,
+        intent: IntentAPI,
+        *,
+        filename: str | None = None,
+        encrypt: bool = False,
+        referer: str = "messenger_thread_photo",
+        find_size: bool = False,
+        convert_audio: bool = False,
+    ) -> tuple[ContentURI, FileInfo | VideoInfo | AudioInfo | ImageInfo, EncryptedFile | None]:
+        if not url:
+            raise ValueError("URL not provided")
+        headers = {"referer": f"fbapp://{source.state.application.client_id}/{referer}"}
+        sandbox = cls.config["bridge.sandbox_media_download"]
+        async with source.client.get(url, headers=headers, sandbox=sandbox) as resp:
+            length = int(resp.headers["Content-Length"])
+            if length > cls.matrix.media_config.upload_size:
+                raise ValueError("File not available: too large")
+            data = await resp.read()
+        mime = magic.from_buffer(data, mime=True)
+        if convert_audio and mime != "audio/ogg":
+            data = await ffmpeg.convert_bytes(
+                data, ".ogg", output_args=("-c:a", "libopus"), input_mime=mime
+            )
+            mime = "audio/ogg"
+        info = FileInfo(mimetype=mime, size=len(data))
+        if Image and mime.startswith("image/") and find_size:
+            with Image.open(BytesIO(data)) as img:
+                width, height = img.size
+            info = ImageInfo(mimetype=mime, size=len(data), width=width, height=height)
+        upload_mime_type = mime
+        decryption_info = None
+        if encrypt and encrypt_attachment:
+            data, decryption_info = encrypt_attachment(data)
+            upload_mime_type = "application/octet-stream"
+            filename = None
+        url = await intent.upload_media(data, mime_type=upload_mime_type, filename=filename)
+        if decryption_info:
+            decryption_info.url = url
+        return url, info, decryption_info
+    """
+
+    async def _update_name(self, name: str) -> bool:
+        if not name:
+            self.log.warning("Got empty name in _update_name call")
+            return False
+        if self.name != name or not self.name_set:
+            self.log.trace("Updating name %s -> %s", self.name, name)
+            self.name = name
+            if self.mxid and (self.encrypted or not self.is_direct):
+                try:
+                    await self.main_intent.set_room_name(self.mxid, self.name)
+                    self.name_set = True
+                except Exception:
+                    self.log.exception("Failed to set room name")
+                    self.name_set = False
+            return True
+        return False
+
+    """
+    async def _update_photo(self, source: u.User, photo: graphql.Picture) -> bool:
+        if self.is_direct and not self.encrypted:
+            return False
+        photo_id = self.get_photo_id(photo)
+        if self.photo_id != photo_id or not self.avatar_set:
+            self.photo_id = photo_id
+            if photo:
+                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,
+                        self.ktid,
+                        use_graph=self.is_direct and (photo.height or 0) < 500,
+                    )
+            else:
+                self.avatar_url = ContentURI("")
+            if self.mxid:
+                try:
+                    await self.main_intent.set_room_avatar(self.mxid, self.avatar_url)
+                    self.avatar_set = True
+                except Exception:
+                    self.log.exception("Failed to set room avatar")
+                    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:
+            return False
+        self.photo_id = puppet.photo_id
+        if puppet.photo_mxc:
+            self.avatar_url = puppet.photo_mxc
+        elif self.photo_id:
+            profile = await self.main_intent.get_profile(puppet.default_mxid)
+            self.avatar_url = profile.avatar_url
+            puppet.photo_mxc = profile.avatar_url
+        else:
+            self.avatar_url = ContentURI("")
+        if self.mxid:
+            try:
+                await self.main_intent.set_room_avatar(self.mxid, self.avatar_url)
+                self.avatar_set = True
+            except Exception:
+                self.log.exception("Failed to set room avatar")
+                self.avatar_set = False
+        return True
+
+    """
+    async def sync_per_room_nick(self, puppet: p.Puppet, name: str) -> None:
+        intent = puppet.intent_for(self)
+        content = MemberStateEventContent(
+            membership=Membership.JOIN,
+            avatar_url=puppet.photo_mxc,
+            displayname=name or puppet.name,
+        )
+        content[DOUBLE_PUPPET_SOURCE_KEY] = self.bridge.name
+        current_state = await intent.state_store.get_member(self.mxid, intent.mxid)
+        if not current_state or current_state.displayname != content.displayname:
+            self.log.debug(
+                "Syncing %s's per-room nick %s to the room",
+                puppet.ktid,
+                content.displayname,
+            )
+            await intent.send_state_event(
+                self.mxid, EventType.ROOM_MEMBER, content, state_key=intent.mxid
+            )
+    """
+
+    async def _update_participants(self, source: u.User, participants: list[DisplayUserInfo]) -> bool:
+        changed = False
+        # TODO nick_map?
+        for participant in participants:
+            puppet = await p.Puppet.get_by_ktid(participant.userId)
+            await puppet.update_info(source, participant)
+            if self.is_direct and self.ktid == puppet.ktid and self.encrypted:
+                changed = await self._update_name(puppet.name) or changed
+                changed = await self._update_photo_from_puppet(puppet) or changed
+            if self.mxid:
+                if puppet.ktid != self.kt_receiver or puppet.is_real_user:
+                    await puppet.intent_for(self).ensure_joined(self.mxid, bot=self.main_intent)
+                #if puppet.ktid in nick_map:
+                #    await self.sync_per_room_nick(puppet, nick_map[puppet.ktid])
+        return changed
+
+    # endregion
+    # region Matrix room creation
+
+    async def update_matrix_room(self, source: u.User, info: PortalChannelInfo) -> None:
+        try:
+            await self._update_matrix_room(source, info)
+        except Exception:
+            self.log.exception("Failed to update portal")
+
+    def _get_invite_content(self, double_puppet: p.Puppet | None) -> dict[str, Any]:
+        invite_content = {}
+        if double_puppet:
+            invite_content["fi.mau.will_auto_accept"] = True
+        if self.is_direct:
+            invite_content["is_direct"] = True
+        return invite_content
+
+    async def _update_matrix_room(
+        self, source: u.User, info: PortalChannelInfo
+    ) -> None:
+        puppet = await p.Puppet.get_by_custom_mxid(source.mxid)
+        await self.main_intent.invite_user(
+            self.mxid,
+            source.mxid,
+            check_cache=True,
+            extra_content=self._get_invite_content(puppet),
+        )
+        if puppet:
+            did_join = await puppet.intent.ensure_joined(self.mxid)
+            if did_join and self.is_direct:
+                await source.update_direct_chats({self.main_intent.mxid: [self.mxid]})
+
+        await self.update_info(source, info)
+
+        # TODO
+        #await self._sync_read_receipts(info.read_receipts.nodes)
+
+    """
+    async def _sync_read_receipts(self, receipts: list[None]) -> None:
+        for receipt in receipts:
+            message = await DBMessage.get_closest_before(
+                self.ktid, self.kt_receiver, receipt.timestamp
+            )
+            if not message:
+                continue
+            puppet = await p.Puppet.get_by_ktid(receipt.actor.id, create=False)
+            if not puppet:
+                continue
+            try:
+                await puppet.intent_for(self).mark_read(message.mx_room, message.mxid)
+            except Exception:
+                self.log.warning(
+                    f"Failed to mark {message.mxid} in {message.mx_room} "
+                    f"as read by {puppet.intent.mxid}",
+                    exc_info=True,
+                )
+    """
+
+    async def create_matrix_room(
+        self, source: u.User, info: PortalChannelInfo
+    ) -> RoomID | None:
+        if self.mxid:
+            try:
+                await self._update_matrix_room(source, info)
+            except Exception:
+                self.log.exception("Failed to update portal")
+            return self.mxid
+        async with self._create_room_lock:
+            try:
+                return await self._create_matrix_room(source, info)
+            except Exception:
+                self.log.exception("Failed to create portal")
+                return None
+
+    @property
+    def bridge_info_state_key(self) -> str:
+        return f"net.miscworks.kakaotalk://kakaotalk/{self.ktid}"
+
+    @property
+    def bridge_info(self) -> dict[str, Any]:
+        return {
+            "bridgebot": self.az.bot_mxid,
+            "creator": self.main_intent.mxid,
+            "protocol": {
+                "id": "kakaotalk",
+                "displayname": "KakaoTalk",
+                "avatar_url": self.config["appservice.bot_avatar"],
+            },
+            "channel": {
+                "id": str(self.ktid),
+                "displayname": self.name,
+                "avatar_url": self.avatar_url,
+            },
+        }
+
+    async def update_bridge_info(self) -> None:
+        if not self.mxid:
+            self.log.debug("Not updating bridge info: no Matrix room created")
+            return
+        try:
+            self.log.debug("Updating bridge info...")
+            await self.main_intent.send_state_event(
+                self.mxid, StateBridge, self.bridge_info, self.bridge_info_state_key
+            )
+            # TODO remove this once https://github.com/matrix-org/matrix-doc/pull/2346 is in spec
+            await self.main_intent.send_state_event(
+                self.mxid, StateHalfShotBridge, self.bridge_info, self.bridge_info_state_key
+            )
+        except Exception:
+            self.log.warning("Failed to update bridge info", exc_info=True)
+
+    async def _create_matrix_room(
+        self, source: u.User, info: PortalChannelInfo
+    ) -> RoomID | None:
+        if self.mxid:
+            await self._update_matrix_room(source, info)
+            return self.mxid
+
+        self.log.debug(f"Creating Matrix room")
+        name: str | None = None
+        initial_state = [
+            {
+                "type": str(StateBridge),
+                "state_key": self.bridge_info_state_key,
+                "content": self.bridge_info,
+            },
+            # TODO remove this once https://github.com/matrix-org/matrix-doc/pull/2346 is in spec
+            {
+                "type": str(StateHalfShotBridge),
+                "state_key": self.bridge_info_state_key,
+                "content": self.bridge_info,
+            },
+        ]
+        invites = []
+        if self.config["bridge.encryption.default"] and self.matrix.e2ee:
+            self.encrypted = True
+            initial_state.append(
+                {
+                    "type": "m.room.encryption",
+                    "content": {"algorithm": "m.megolm.v1.aes-sha2"},
+                }
+            )
+            if self.is_direct:
+                invites.append(self.az.bot_mxid)
+
+        await self.update_info(source=source, info=info)
+
+        if self.encrypted or not self.is_direct:
+            name = self.name
+            initial_state.append(
+                {
+                    "type": str(EventType.ROOM_AVATAR),
+                    "content": {"url": self.avatar_url},
+                }
+            )
+
+        # We lock backfill lock here so any messages that come between the room being created
+        # and the initial backfill finishing wouldn't be bridged before the backfill messages.
+        with self.backfill_lock:
+            creation_content = {}
+            if not self.config["bridge.federate_rooms"]:
+                creation_content["m.federate"] = False
+            self.mxid = await self.main_intent.create_room(
+                name=name,
+                is_direct=self.is_direct,
+                initial_state=initial_state,
+                invitees=invites,
+                creation_content=creation_content,
+            )
+            if not self.mxid:
+                raise Exception("Failed to create room: no mxid returned")
+
+            if self.encrypted and self.matrix.e2ee and self.is_direct:
+                try:
+                    await self.az.intent.ensure_joined(self.mxid)
+                except Exception:
+                    self.log.warning(f"Failed to add bridge bot to new private chat {self.mxid}")
+
+            await self.save()
+            self.log.debug(f"Matrix room created: {self.mxid}")
+            self.by_mxid[self.mxid] = self
+
+            puppet = await p.Puppet.get_by_custom_mxid(source.mxid)
+            await self.main_intent.invite_user(
+                self.mxid, source.mxid, extra_content=self._get_invite_content(puppet)
+            )
+            if puppet:
+                try:
+                    if self.is_direct:
+                        await source.update_direct_chats({self.main_intent.mxid: [self.mxid]})
+                    await puppet.intent.join_room_by_id(self.mxid)
+                except MatrixError:
+                    self.log.debug(
+                        "Failed to join custom puppet into newly created portal",
+                        exc_info=True,
+                    )
+
+            if not self.is_direct:
+                await self._update_participants(source, info.channel_info.displayUserList)
+
+            try:
+                await self.backfill(source, is_initial=True, channel=info.channel_info)
+            except Exception:
+                self.log.exception("Failed to backfill new portal")
+
+            # TODO
+            #await self._sync_read_receipts(info.read_receipts.nodes)
+
+        return self.mxid
+
+    # endregion
+    # region Matrix event handling
+
+    def require_send_lock(self, user_id: Long) -> asyncio.Lock:
+        try:
+            lock = self._send_locks[user_id]
+        except KeyError:
+            lock = asyncio.Lock()
+            self._send_locks[user_id] = lock
+        return lock
+
+    def optional_send_lock(self, user_id: Long) -> asyncio.Lock | FakeLock:
+        try:
+            return self._send_locks[user_id]
+        except KeyError:
+            pass
+        return self._noop_lock
+
+    async def _send_delivery_receipt(self, event_id: EventID) -> None:
+        if event_id and self.config["bridge.delivery_receipts"]:
+            try:
+                await self.az.intent.mark_read(self.mxid, event_id)
+            except Exception:
+                self.log.exception(f"Failed to send delivery receipt for {event_id}")
+
+    async def _send_bridge_error(self, msg: str, thing: str = "message") -> None:
+        await self._send_message(
+            self.main_intent,
+            TextMessageEventContent(
+                msgtype=MessageType.NOTICE,
+                body=f"\u26a0 Your {thing} may not have been bridged: {msg}",
+            ),
+        )
+
+    def _status_from_exception(self, e: Exception) -> MessageSendCheckpointStatus:
+        if isinstance(e, NotImplementedError):
+            return MessageSendCheckpointStatus.UNSUPPORTED
+        return MessageSendCheckpointStatus.PERM_FAILURE
+
+    async def handle_matrix_message(
+        self, sender: u.User, message: MessageEventContent, event_id: EventID
+    ) -> None:
+        try:
+            await self._handle_matrix_message(sender, message, event_id)
+        except Exception as e:
+            self.log.exception(f"Failed to handle Matrix event {event_id}: {e}")
+            sender.send_remote_checkpoint(
+                self._status_from_exception(e),
+                event_id,
+                self.mxid,
+                EventType.ROOM_MESSAGE,
+                message.msgtype,
+                error=e,
+            )
+            await self._send_bridge_error(str(e))
+        else:
+            await self._send_delivery_receipt(event_id)
+
+    async def _handle_matrix_message(
+        self, orig_sender: u.User, message: MessageEventContent, event_id: EventID
+    ) -> None:
+        if message.get_edit():
+            raise NotImplementedError("Edits are not supported by the KakaoTalk bridge.")
+        sender, is_relay = await self.get_relay_sender(orig_sender, f"message {event_id}")
+        if not sender:
+            raise Exception("not logged in")
+        elif not sender.has_state:
+            raise Exception("not connected to KakaoTalk")
+        elif is_relay:
+            await self.apply_relay_message_format(orig_sender, message)
+        if message.msgtype == MessageType.TEXT or message.msgtype == MessageType.NOTICE:
+            await self._handle_matrix_text(event_id, sender, message)
+        elif message.msgtype.is_media:
+            await self._handle_matrix_media(event_id, sender, message, is_relay)
+        # elif message.msgtype == MessageType.LOCATION:
+        #     await self._handle_matrix_location(sender, message)
+        else:
+            raise NotImplementedError(f"Unsupported message type {message.msgtype}")
+
+    async def _handle_matrix_text(
+        self, event_id: EventID, sender: u.User, message: TextMessageEventContent
+    ) -> None:
+        self.log.info("TODO: _handle_matrix_text")
+
+    async def _handle_matrix_media(
+        self, event_id: EventID, sender: u.User, message: MediaMessageEventContent, is_relay: bool
+    ) -> None:
+        self.log.info("TODO: _handle_matrix_media")
+
+    async def _handle_matrix_location(
+        self, sender: u.User, message: LocationMessageEventContent
+    ) -> str:
+        pass
+        # TODO
+        # match = geo_uri_regex.fullmatch(message.geo_uri)
+        # return await self.thread_for(sender).send_pinned_location(float(match.group(1)),
+        #                                                           float(match.group(2)))
+
+    async def handle_matrix_redaction(
+        self, sender: u.User, event_id: EventID, redaction_event_id: EventID
+    ) -> None:
+        try:
+            await self._handle_matrix_redaction(sender, event_id, redaction_event_id)
+        except Exception as e:
+            self.log.exception(f"Failed to handle Matrix event {event_id}: {e}")
+            sender.send_remote_checkpoint(
+                self._status_from_exception(e),
+                event_id,
+                self.mxid,
+                EventType.ROOM_REDACTION,
+                error=e,
+            )
+            await self._send_bridge_error(str(e))
+        else:
+            await self._send_delivery_receipt(event_id)
+
+    async def _handle_matrix_redaction(
+        self, sender: u.User, event_id: EventID, redaction_event_id: EventID
+    ) -> None:
+        self.log.info("TODO: _handle_matrix_redaction")
+
+    async def handle_matrix_reaction(
+        self, sender: u.User, event_id: EventID, reacting_to: EventID, reaction: str
+    ) -> None:
+        self.log.info("TODO: handle_matrix_reaction")
+
+    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}")
+            if user.ktid == self.kt_receiver:
+                self.log.info(
+                    f"{user.mxid} was the recipient of this portal. Cleaning up and deleting..."
+                )
+                await self.cleanup_and_delete()
+        else:
+            self.log.debug(f"{user.mxid} left portal to {self.ktid}")
+
+    async def _set_typing(self, users: set[UserID], typing: bool) -> None:
+        self.log.info("TODO: _set_typing")
+
+    async def handle_matrix_typing(self, users: set[UserID]) -> None:
+        await asyncio.gather(
+            self._set_typing(users - self._typing, typing=True),
+            self._set_typing(self._typing - users, typing=False),
+        )
+        self._typing = users
+
+    async def enable_dm_encryption(self) -> bool:
+        ok = await super().enable_dm_encryption()
+        if ok:
+            try:
+                puppet = await p.Puppet.get_by_ktid(self.ktid)
+                await self.main_intent.set_room_name(self.mxid, puppet.name)
+            except Exception:
+                self.log.warning(f"Failed to set room name", exc_info=True)
+        return ok
+
+    # endregion
+    # region KakaoTalk event handling
+
+    async def _bridge_own_message_pm(
+        self, source: u.User, sender: p.Puppet, mid: str, invite: bool = True
+    ) -> bool:
+        if self.is_direct and sender.ktid == source.ktid and not sender.is_real_user:
+            if self.invite_own_puppet_to_pm and invite:
+                await self.main_intent.invite_user(self.mxid, sender.mxid)
+            elif (
+                await self.az.state_store.get_membership(self.mxid, sender.mxid) != Membership.JOIN
+            ):
+                self.log.warning(
+                    f"Ignoring own {mid} in private chat because own puppet is not in room."
+                )
+                return False
+        return True
+
+    async def _add_kakaotalk_reply(
+        self, content: MessageEventContent, reply_to: None
+    ) -> None:
+        self.log.info("TODO")
+
+    async def handle_remote_message(
+        self,
+        source: u.User,
+        sender: p.Puppet,
+        message: str,
+        reply_to: None = None,
+    ) -> None:
+        try:
+            await self._handle_remote_message(source, sender, message, reply_to)
+        except Exception:
+            self.log.exception(
+                "Error handling Kakaotalk message "
+            )
+
+    async def _handle_remote_message(
+        self,
+        source: u.User,
+        sender: p.Puppet,
+        message: str,
+        reply_to: None = None,
+    ) -> None:
+        self.log.info("TODO")
+
+    # TODO Many more remote handlers
+
+    # endregion
+
+    async def backfill(self, source: u.User, is_initial: bool, channel: PortalChannelInfo) -> None:
+        self.log.info("TODO: backfill")
+
+    # region Database getters
+
+    async def postinit(self) -> None:
+        self.by_ktid[self.ktid_full] = self
+        if self.mxid:
+            self.by_mxid[self.mxid] = self
+        self._main_intent = (
+            (await p.Puppet.get_by_ktid(self.ktid)).default_mxid_intent
+            if self.is_direct
+            else self.az.intent
+        )
+
+    @classmethod
+    @async_getter_lock
+    async def get_by_mxid(cls, mxid: RoomID) -> Portal | None:
+        try:
+            return cls.by_mxid[mxid]
+        except KeyError:
+            pass
+
+        portal = cast(cls, await super().get_by_mxid(mxid))
+        if portal:
+            await portal.postinit()
+            return portal
+
+        return None
+
+    @classmethod
+    @async_getter_lock
+    async def get_by_ktid(
+        cls,
+        ktid: Long,
+        *,
+        kt_receiver: Long = Long.ZERO,
+        create: bool = True,
+        kt_type: ChannelType | None = None,
+    ) -> Portal | None:
+        if kt_type:
+            kt_receiver = kt_receiver if KnownChannelType.is_direct(kt_type) else Long.ZERO
+        ktid_full = (ktid, kt_receiver)
+        try:
+            return cls.by_ktid[ktid_full]
+        except KeyError:
+            pass
+
+        portal = cast(cls, await super().get_by_ktid(ktid, kt_receiver))
+        if portal:
+            await portal.postinit()
+            return portal
+
+        if kt_type and create:
+            portal = cls(ktid=ktid, kt_receiver=kt_receiver, kt_type=kt_type)
+            await portal.insert()
+            await portal.postinit()
+            return portal
+
+        return None
+
+    @classmethod
+    async def get_all_by_receiver(cls, kt_receiver: Long) -> AsyncGenerator[Portal, None]:
+        portals = await super().get_all_by_receiver(kt_receiver)
+        portal: Portal
+        for portal in portals:
+            try:
+                yield cls.by_ktid[(portal.ktid, portal.kt_receiver)]
+            except KeyError:
+                await portal.postinit()
+                yield portal
+
+    @classmethod
+    async def all(cls) -> AsyncGenerator[Portal, None]:
+        portals = await super().all()
+        portal: Portal
+        for portal in portals:
+            try:
+                yield cls.by_ktid[(portal.ktid, portal.kt_receiver)]
+            except KeyError:
+                await portal.postinit()
+                yield portal
+
+    # endregion
diff --git a/matrix_appservice_kakaotalk/puppet.py b/matrix_appservice_kakaotalk/puppet.py
new file mode 100644
index 0000000..6b718e4
--- /dev/null
+++ b/matrix_appservice_kakaotalk/puppet.py
@@ -0,0 +1,280 @@
+# 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 .
+from __future__ import annotations
+
+from typing import TYPE_CHECKING, AsyncGenerator, AsyncIterable, Awaitable, cast
+from datetime import datetime, timedelta
+import asyncio
+
+from yarl import URL
+
+from mautrix.appservice import IntentAPI
+from mautrix.bridge import BasePuppet, async_getter_lock
+from mautrix.types import ContentURI, RoomID, SyncToken, UserID
+from mautrix.util import magic
+from mautrix.util.simple_template import SimpleTemplate
+
+from . import matrix as m, portal as p, user as u
+from .config import Config
+from .db import Puppet as DBPuppet
+
+from .kt.types.bson import Long
+from .kt.types.user.channel_user_info import DisplayUserInfo
+
+if TYPE_CHECKING:
+    from .__main__ import KakaoTalkBridge
+
+
+class Puppet(DBPuppet, BasePuppet):
+    mx: m.MatrixHandler
+    config: Config
+    hs_domain: str
+    mxid_template: SimpleTemplate[int]
+
+    by_ktid: dict[Long, Puppet] = {}
+    by_custom_mxid: dict[UserID, Puppet] = {}
+
+    _last_info_sync: datetime | None
+
+    def __init__(
+        self,
+        ktid: Long,
+        name: str | None = None,
+        photo_id: str | None = None,
+        photo_mxc: ContentURI | None = None,
+        name_set: bool = False,
+        avatar_set: bool = False,
+        is_registered: bool = False,
+        custom_mxid: UserID | None = None,
+        access_token: str | None = None,
+        next_batch: SyncToken | None = None,
+        base_url: URL | None = None,
+    ) -> None:
+        super().__init__(
+            ktid,
+            name,
+            photo_id,
+            photo_mxc,
+            name_set,
+            avatar_set,
+            is_registered,
+            custom_mxid,
+            access_token,
+            next_batch,
+            base_url,
+        )
+        self._last_info_sync = None
+
+        self.default_mxid = self.get_mxid_from_id(ktid)
+        self.default_mxid_intent = self.az.intent.user(self.default_mxid)
+        self.intent = self._fresh_intent()
+
+        self.log = self.log.getChild(str(self.ktid))
+
+    @property
+    def should_sync(self) -> bool:
+        now = datetime.now()
+        if not self._last_info_sync or now - self._last_info_sync > timedelta(hours=48):
+            self._last_info_sync = now
+            return True
+        return False
+
+    async def default_puppet_should_leave_room(self, room_id: RoomID) -> bool:
+        portal = await p.Portal.get_by_mxid(room_id)
+        return portal and portal.ktid != self.ktid
+
+    async def _leave_rooms_with_default_user(self) -> None:
+        await super()._leave_rooms_with_default_user()
+        # Make the user join all private chat portals.
+        await asyncio.gather(
+            *[
+                self.intent.ensure_joined(portal.mxid)
+                async for portal in p.Portal.get_all_by_receiver(self.ktid)
+                if portal.mxid
+            ]
+        )
+
+    def intent_for(self, portal: p.Portal) -> IntentAPI:
+        if portal.ktid == self.ktid or (
+            portal.backfill_lock.locked and self.config["bridge.backfill.invite_own_puppet"]
+        ):
+            return self.default_mxid_intent
+        return self.intent
+
+    @classmethod
+    def init_cls(cls, bridge: KakaoTalkBridge) -> AsyncIterable[Awaitable[None]]:
+        cls.config = bridge.config
+        cls.loop = bridge.loop
+        cls.mx = bridge.matrix
+        cls.az = bridge.az
+        cls.hs_domain = cls.config["homeserver.domain"]
+        cls.mxid_template = SimpleTemplate(
+            template=cls.config["bridge.username_template"],
+            keyword="userid",
+            prefix="@",
+            suffix=f":{Puppet.hs_domain}",
+            type=int,
+        )
+        cls.sync_with_custom_puppets = cls.config["bridge.sync_with_custom_puppets"]
+        cls.homeserver_url_map = {
+            server: URL(url)
+            for server, url in cls.config["bridge.double_puppet_server_map"].items()
+        }
+        cls.allow_discover_url = cls.config["bridge.double_puppet_allow_discovery"]
+        cls.login_shared_secret_map = {
+            server: secret.encode("utf-8")
+            for server, secret in cls.config["bridge.login_shared_secret_map"].items()
+        }
+        cls.login_device_name = "KakaoTalk Bridge"
+
+        return (puppet.try_start() async for puppet in Puppet.get_all_with_custom_mxid())
+
+    # region User info updating
+
+    async def update_info(
+        self,
+        source: u.User,
+        info: DisplayUserInfo,
+        update_avatar: bool = True,
+    ) -> Puppet:
+        self._last_info_sync = datetime.now()
+        try:
+            changed = await self._update_name(info)
+            if update_avatar:
+                changed = await self._update_photo(source, info.profileURL) or changed
+            if changed:
+                await self.save()
+        except Exception:
+            self.log.exception(f"Failed to update info from source {source.ktid}")
+        return self
+
+    async def _update_name(self, info: DisplayUserInfo) -> bool:
+        name = info.nickname
+        if name != self.name or not self.name_set:
+            self.name = name
+            try:
+                await self.default_mxid_intent.set_displayname(self.name)
+                self.name_set = True
+            except Exception:
+                self.log.exception("Failed to set displayname")
+                self.name_set = False
+            return True
+        return False
+
+    @staticmethod
+    async def reupload_avatar(
+        source: u.User,
+        intent: IntentAPI,
+        url: str,
+        ktid: int,
+    ) -> ContentURI:
+        async with source.client.get(url) as resp:
+            data = await resp.read()
+        mime = magic.mimetype(data)
+        return await intent.upload_media(data, mime_type=mime)
+
+    async def _update_photo(self, source: u.User, photo_id: str) -> bool:
+        if photo_id != self.photo_id or not self.avatar_set:
+            self.photo_id = photo_id
+            if photo_id:
+                self.photo_mxc = await self.reupload_avatar(
+                    source,
+                    self.default_mxid_intent,
+                    photo_id,
+                    self.ktid,
+                )
+            else:
+                self.photo_mxc = ContentURI("")
+            try:
+                await self.default_mxid_intent.set_avatar_url(self.photo_mxc)
+                self.avatar_set = True
+            except Exception:
+                self.log.exception("Failed to set avatar")
+                self.avatar_set = False
+            return True
+        return False
+
+    # endregion
+    # region Database getters
+
+    def _add_to_cache(self) -> None:
+        self.by_ktid[self.ktid] = self
+        if self.custom_mxid:
+            self.by_custom_mxid[self.custom_mxid] = self
+
+    @classmethod
+    @async_getter_lock
+    async def get_by_ktid(cls, ktid: Long, *, create: bool = True) -> Puppet | None:
+        try:
+            return cls.by_ktid[ktid]
+        except KeyError:
+            pass
+
+        puppet = cast(cls, await super().get_by_ktid(ktid))
+        if puppet:
+            puppet._add_to_cache()
+            return puppet
+
+        if create:
+            puppet = cls(ktid)
+            await puppet.insert()
+            puppet._add_to_cache()
+            return puppet
+
+        return None
+
+    @classmethod
+    async def get_by_mxid(cls, mxid: UserID, create: bool = True) -> Puppet | None:
+        ktid = cls.get_id_from_mxid(mxid)
+        if ktid:
+            return await cls.get_by_ktid(ktid, create=create)
+        return None
+
+    @classmethod
+    @async_getter_lock
+    async def get_by_custom_mxid(cls, mxid: UserID) -> Puppet | None:
+        try:
+            return cls.by_custom_mxid[mxid]
+        except KeyError:
+            pass
+
+        puppet = cast(cls, await super().get_by_custom_mxid(mxid))
+        if puppet:
+            puppet._add_to_cache()
+            return puppet
+
+        return None
+
+    @classmethod
+    def get_id_from_mxid(cls, mxid: UserID) -> int | None:
+        return cls.mxid_template.parse(mxid)
+
+    @classmethod
+    def get_mxid_from_id(cls, ktid: Long) -> UserID:
+        return UserID(cls.mxid_template.format_full(ktid))
+
+    @classmethod
+    async def get_all_with_custom_mxid(cls) -> AsyncGenerator[Puppet, None]:
+        puppets = await super().get_all_with_custom_mxid()
+        puppet: cls
+        for puppet in puppets:
+            try:
+                yield cls.by_ktid[puppet.ktid]
+            except KeyError:
+                puppet._add_to_cache()
+                yield puppet
+
+    # endregion
diff --git a/matrix_appservice_kakaotalk/rpc/__init__.py b/matrix_appservice_kakaotalk/rpc/__init__.py
new file mode 100644
index 0000000..33792bd
--- /dev/null
+++ b/matrix_appservice_kakaotalk/rpc/__init__.py
@@ -0,0 +1 @@
+from .rpc import RPCClient
diff --git a/matrix_appservice_kakaotalk/rpc/rpc.py b/matrix_appservice_kakaotalk/rpc/rpc.py
new file mode 100644
index 0000000..3820317
--- /dev/null
+++ b/matrix_appservice_kakaotalk/rpc/rpc.py
@@ -0,0 +1,203 @@
+# 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 .
+from __future__ import annotations
+
+from typing import Any, Callable, Awaitable, List
+
+import asyncio
+import json
+import logging
+
+from mautrix.types.primitive import JSON
+
+from ..config import Config
+from .types import RPCError
+
+EventHandler = Callable[[dict[str, Any]], Awaitable[None]]
+
+
+class RPCClient:
+    config: Config
+    loop: asyncio.AbstractEventLoop
+    log: logging.Logger = logging.getLogger("mau.rpc")
+
+    _reader: asyncio.StreamReader | None
+    _writer: asyncio.StreamWriter | None
+    _req_id: int
+    _min_broadcast_id: int
+    _response_waiters: dict[int, asyncio.Future[JSON]]
+    _event_handlers: dict[str, List[EventHandler]]
+    _command_queue: asyncio.Queue
+
+    def __init__(self, config: Config) -> None:
+        self.config = config
+        self.loop = asyncio.get_running_loop()
+        self._req_id = 0
+        self._min_broadcast_id = 0
+        self._event_handlers = {}
+        self._response_waiters = {}
+        self._writer = None
+        self._reader = None
+        self._command_queue = asyncio.Queue()
+
+    async def connect(self) -> None:
+        if self._writer is not None:
+            return
+
+        if self.config["rpc.connection.type"] == "unix":
+            while True:
+                try:
+                    r, w = await asyncio.open_unix_connection(self.config["rpc.connection.path"])
+                    break
+                except:
+                    self.log.warn(f'No unix socket available at {self.config["rpc.connection.path"]}, wait for it to exist...')
+                    await asyncio.sleep(10)
+        elif self.config["rpc.connection.type"] == "tcp":
+            while True:
+                try:
+                    r, w = await asyncio.open_connection(self.config["rpc.connection.host"],
+                                                         self.config["rpc.connection.port"])
+                    break
+                except:
+                    self.log.warn(f'No TCP connection open at {self.config["rpc.connection.host"]}:{self.config["rpc.connection.path"]}, wait for it to become available...')
+                    await asyncio.sleep(10)
+        else:
+            raise RuntimeError("invalid rpc connection type")
+        self._reader = r
+        self._writer = w
+        self.loop.create_task(self._try_read_loop())
+        self.loop.create_task(self._command_loop())
+        await self.request("register", peer_id=self.config["appservice.address"])
+
+    async def disconnect(self) -> None:
+        assert self._writer is not None
+        self._writer.write_eof()
+        await self._writer.drain()
+        self._writer = None
+        self._reader = None
+
+    @property
+    def _next_req_id(self) -> int:
+        self._req_id += 1
+        return self._req_id
+
+    def add_event_handler(self, method: str, handler: EventHandler) -> None:
+        self._event_handlers.setdefault(method, []).append(handler)
+
+    def remove_event_handler(self, method: str, handler: EventHandler) -> None:
+        self._event_handlers.setdefault(method, []).remove(handler)
+
+    async def _run_event_handler(self, req_id: int, command: str, req: dict[str, Any]) -> None:
+        if req_id > self._min_broadcast_id:
+            self.log.debug(f"Ignoring duplicate broadcast {req_id}")
+            return
+        self._min_broadcast_id = req_id
+        try:
+            handlers = self._event_handlers[command]
+        except KeyError:
+            self.log.warning("No handlers for %s", command)
+        else:
+            for handler in handlers:
+                try:
+                    await handler(req)
+                except Exception:
+                    self.log.exception("Exception in event handler")
+
+    async def _handle_incoming_line(self, line: str) -> None:
+        try:
+            req = json.loads(line)
+        except json.JSONDecodeError:
+            self.log.debug(f"Got non-JSON data from server: {line}")
+            return
+        try:
+            req_id = req.pop("id")
+            command = req.pop("command")
+            is_sequential = req.pop("is_sequential", False)
+        except KeyError:
+            self.log.debug(f"Got invalid request from server: {line}")
+            return
+        if req_id < 0:
+            if not is_sequential:
+                self.loop.create_task(self._run_event_handler(req_id, command, req))
+            else:
+                self._command_queue.put_nowait((req_id, command, req))
+            return
+        try:
+            waiter = self._response_waiters[req_id]
+        except KeyError:
+            self.log.debug(f"Nobody waiting for response to {req_id}")
+            return
+        if command == "response":
+            waiter.set_result(req.get("response"))
+        elif command == "error":
+            waiter.set_exception(RPCError(req.get("error", line)))
+        else:
+            self.log.warning(f"Unexpected response command to {req_id}: {command} {req}")
+
+    async def _command_loop(self) -> None:
+        while True:
+            req_id, command, req = await self._command_queue.get()
+            await self._run_event_handler(req_id, command, req)
+            self._command_queue.task_done()
+
+    async def _try_read_loop(self) -> None:
+        try:
+            await self._read_loop()
+        except Exception:
+            self.log.exception("Fatal error in read loop")
+
+    async def _read_loop(self) -> None:
+        while self._reader is not None and not self._reader.at_eof():
+            line = b''
+            while True:
+                try:
+                    line += await self._reader.readuntil()
+                    break
+                except asyncio.IncompleteReadError as e:
+                    line += e.partial
+                    break
+                except asyncio.LimitOverrunError as e:
+                    self.log.warning(f"Buffer overrun: {e}")
+                    line += await self._reader.read(self._reader._limit)
+            if not line:
+                continue
+            try:
+                line_str = line.decode("utf-8")
+            except UnicodeDecodeError:
+                self.log.exception("Got non-unicode request from server: %s", line)
+                continue
+            try:
+                await self._handle_incoming_line(line_str)
+            except Exception:
+                self.log.exception("Failed to handle incoming request %s", line_str)
+        self.log.debug("Reader disconnected")
+        self._reader = None
+        self._writer = None
+
+    async def _raw_request(self, command: str, is_secret: bool = False, **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 "")
+        assert self._writer is not None
+        self._writer.write(json.dumps(req).encode("utf-8"))
+        self._writer.write(b"\n")
+        await self._writer.drain()
+        return future
+
+    async def request(self, command: str, **data: JSON) -> JSON:
+        future = await self._raw_request(command, **data)
+        return await future
diff --git a/matrix_appservice_kakaotalk/rpc/types.py b/matrix_appservice_kakaotalk/rpc/types.py
new file mode 100644
index 0000000..eecbd3b
--- /dev/null
+++ b/matrix_appservice_kakaotalk/rpc/types.py
@@ -0,0 +1,20 @@
+# 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 .
+"""Types used by and for the Node RPC backend."""
+
+
+class RPCError(Exception):
+    pass
diff --git a/matrix_appservice_kakaotalk/user.py b/matrix_appservice_kakaotalk/user.py
new file mode 100644
index 0000000..b897844
--- /dev/null
+++ b/matrix_appservice_kakaotalk/user.py
@@ -0,0 +1,604 @@
+# 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 .
+from __future__ import annotations
+
+from typing import TYPE_CHECKING, AsyncGenerator, AsyncIterable, Awaitable, cast
+import asyncio
+import time
+
+from mautrix.bridge import BaseUser, async_getter_lock
+from mautrix.types import (
+    EventID,
+    MessageType,
+    RoomID,
+    TextMessageEventContent,
+    UserID,
+)
+from mautrix.util.bridge_state import BridgeState, BridgeStateEvent
+from mautrix.util.opt_prometheus import Gauge, Summary, async_time
+from mautrix.util.simple_lock import SimpleLock
+
+from . import portal as po, puppet as pu
+from .config import Config
+from .db import User as DBUser
+
+from .kt.client import Client
+from .kt.client.errors import AuthenticationRequired, ResponseError
+from .kt.types.api.struct.profile import ProfileStruct
+from .kt.types.bson import Long
+from .kt.types.channel.channel_info import ChannelInfo, NormalChannelInfo
+from .kt.types.channel.channel_info import NormalChannelData
+from .kt.types.chat.chat import Chatlog
+from .kt.types.client.client_session import ChannelLoginDataItem
+from .kt.types.client.client_session import LoginResult
+from .kt.types.oauth import OAuthCredential
+from .kt.types.openlink.open_channel_info import OpenChannelData
+from .kt.types.openlink.open_channel_info import OpenChannelInfo
+
+METRIC_SYNC_CHANNELS = Summary("bridge_sync_channels", "calls to _sync_channels")
+METRIC_RESYNC = Summary("bridge_on_resync", "calls to on_resync")
+METRIC_UNKNOWN_EVENT = Summary("bridge_on_unknown_event", "calls to on_unknown_event")
+METRIC_MEMBERS_ADDED = Summary("bridge_on_members_added", "calls to on_members_added")
+METRIC_MEMBER_REMOVED = Summary("bridge_on_member_removed", "calls to on_member_removed")
+METRIC_TYPING = Summary("bridge_on_typing", "calls to on_typing")
+METRIC_PRESENCE = Summary("bridge_on_presence", "calls to on_presence")
+METRIC_REACTION = Summary("bridge_on_reaction", "calls to on_reaction")
+METRIC_MESSAGE_UNSENT = Summary("bridge_on_unsent", "calls to on_unsent")
+METRIC_MESSAGE_SEEN = Summary("bridge_on_message_seen", "calls to on_message_seen")
+METRIC_TITLE_CHANGE = Summary("bridge_on_title_change", "calls to on_title_change")
+METRIC_AVATAR_CHANGE = Summary("bridge_on_avatar_change", "calls to on_avatar_change")
+METRIC_THREAD_CHANGE = Summary("bridge_on_thread_change", "calls to on_thread_change")
+METRIC_MESSAGE = Summary("bridge_on_message", "calls to on_message")
+METRIC_LOGGED_IN = Gauge("bridge_logged_in", "Users logged into the bridge")
+METRIC_CONNECTED = Gauge("bridge_connected", "Bridge users connected to KakaoTalk")
+
+if TYPE_CHECKING:
+    from .__main__ import KakaoTalkBridge
+
+BridgeState.human_readable_errors.update(
+    {
+        "kt-reconnection-error": "Failed to reconnect to KakaoTalk",
+        "kt-connection-error": "KakaoTalk disconnected unexpectedly",
+        "kt-auth-error": "Authentication error from KakaoTalk: {message}",
+        "kt-disconnected": None,
+        "logged-out": "You're not logged into KakaoTalk",
+    }
+)
+
+
+class User(DBUser, BaseUser):
+    #temp_disconnect_notices: bool = True
+    shutdown: bool = False
+    config: Config
+
+    by_mxid: dict[UserID, User] = {}
+    by_ktid: dict[Long, User] = {}
+
+    client: Client | None
+
+    _notice_room_lock: asyncio.Lock
+    _notice_send_lock: asyncio.Lock
+    command_status: dict | None
+    is_admin: bool
+    permission_level: str
+    _is_logged_in: bool | None
+    #_is_connected: bool | None
+    #_connection_time: float
+    _prev_reconnect_fail_refresh: float
+    _db_instance: DBUser | None
+    _sync_lock: SimpleLock
+    _is_refreshing: bool
+    _logged_in_info: ProfileStruct | None
+    _logged_in_info_time: float
+
+    def __init__(
+        self,
+        mxid: UserID,
+        ktid: Long | None = None,
+        uuid: str | None = None,
+        access_token: str | None = None,
+        refresh_token: str | None = None,
+        notice_room: RoomID | None = None,
+    ) -> None:
+        super().__init__(
+            mxid=mxid,
+            ktid=ktid,
+            uuid=uuid,
+            access_token=access_token,
+            refresh_token=refresh_token,
+            notice_room=notice_room
+        )
+        BaseUser.__init__(self)
+        self.notice_room = notice_room
+        self._notice_room_lock = asyncio.Lock()
+        self._notice_send_lock = asyncio.Lock()
+        self.command_status = None
+        (
+            self.relay_whitelisted,
+            self.is_whitelisted,
+            self.is_admin,
+            self.permission_level,
+        ) = self.config.get_permissions(mxid)
+        self._is_logged_in = None
+        #self._is_connected = None
+        #self._connection_time = time.monotonic()
+        self._prev_reconnect_fail_refresh = time.monotonic()
+        self._sync_lock = SimpleLock(
+            "Waiting for thread sync to finish before handling %s", log=self.log
+        )
+        self._is_refreshing = False
+        self._logged_in_info = None
+        self._logged_in_info_time = 0
+
+        self.client = None
+
+    @classmethod
+    def init_cls(cls, bridge: KakaoTalkBridge) -> AsyncIterable[Awaitable[bool]]:
+        cls.bridge = bridge
+        cls.config = bridge.config
+        cls.az = bridge.az
+        cls.loop = bridge.loop
+        #cls.temp_disconnect_notices = bridge.config["bridge.temporary_disconnect_notices"]
+        return (user.reload_session(is_startup=True) async for user in cls.all_logged_in())
+
+    """
+    @property
+    def is_connected(self) -> bool | None:
+        return self._is_connected
+
+    @is_connected.setter
+    def is_connected(self, val: bool | None) -> None:
+        if self._is_connected != val:
+            self._is_connected = val
+            self._connection_time = time.monotonic()
+
+    @property
+    def connection_time(self) -> float:
+        return self._connection_time
+    """
+
+    @property
+    def has_state(self) -> bool:
+        return self.uuid and self.ktid and self.access_token and self.refresh_token
+
+    # region Database getters
+
+    def _add_to_cache(self) -> None:
+        self.by_mxid[self.mxid] = self
+        if self.ktid:
+            self.by_ktid[self.ktid] = self
+
+    @classmethod
+    async def all_logged_in(cls) -> AsyncGenerator["User", None]:
+        users = await super().all_logged_in()
+        user: cls
+        for user in users:
+            try:
+                yield cls.by_mxid[user.mxid]
+            except KeyError:
+                user._add_to_cache()
+                yield user
+
+    @classmethod
+    @async_getter_lock
+    async def get_by_mxid(cls, mxid: UserID, *, create: bool = True) -> User | None:
+        if pu.Puppet.get_id_from_mxid(mxid) or mxid == cls.az.bot_mxid:
+            return None
+        try:
+            return cls.by_mxid[mxid]
+        except KeyError:
+            pass
+
+        user = cast(cls, await super().get_by_mxid(mxid))
+        if user is not None:
+            user._add_to_cache()
+            return user
+
+        if create:
+            cls.log.debug(f"Creating user instance for {mxid}")
+            user = cls(mxid)
+            await user.insert()
+            user._add_to_cache()
+            return user
+
+        return None
+
+    @classmethod
+    @async_getter_lock
+    async def get_by_ktid(cls, ktid: Long) -> User | None:
+        try:
+            return cls.by_ktid[ktid]
+        except KeyError:
+            pass
+
+        user = cast(cls, await super().get_by_ktid(ktid))
+        if user is not None:
+            user._add_to_cache()
+            return user
+
+        return None
+
+    async def get_uuid(self, force: bool = False) -> str:
+        if self.uuid is None or force:
+            self.uuid = await Client.generate_uuid(await self.get_all_uuids())
+            await self.save()
+        return self.uuid
+
+    # endregion
+
+    @property
+    def oauth_credential(self) -> OAuthCredential:
+        return OAuthCredential(
+            self.ktid,
+            self.uuid,
+            self.access_token,
+            self.refresh_token,
+        )
+
+    @oauth_credential.setter
+    def oauth_credential(self, oauth_credential: OAuthCredential) -> None:
+        self.ktid = oauth_credential.userId
+        self.access_token = oauth_credential.accessToken
+        self.refresh_token = oauth_credential.refreshToken
+        if self.uuid != oauth_credential.deviceUUID:
+            self.log.warn(f"UUID mismatch: expected {self.uuid}, got {oauth_credential.deviceUUID}")
+            self.uuid = oauth_credential.deviceUUID
+
+    async def get_own_info(self) -> ProfileStruct:
+        if not self._logged_in_info or self._logged_in_info_time + 60 * 60 < time.monotonic():
+            self._logged_in_info = await self.client.fetch_logged_in_user()
+            self._logged_in_info_time = time.monotonic()
+        return self._logged_in_info
+
+    async def _load_session(self, is_startup: bool) -> bool:
+        if self._is_logged_in and not is_startup:
+            return True
+        elif not self.has_state:
+            # If we have a user in the DB with no state, we can assume
+            # KT logged us out and the bridge has restarted
+            await self.push_bridge_state(
+                BridgeStateEvent.BAD_CREDENTIALS,
+                error="logged-out",
+            )
+            return False
+        client = Client(self, log=self.log.getChild("ktclient"))
+        user_info = await self.fetch_logged_in_user(client)
+        if user_info:
+            self.log.info("Loaded session successfully")
+            self.client = client
+            self._logged_in_info = user_info
+            self._logged_in_info_time = time.monotonic()
+            self._track_metric(METRIC_LOGGED_IN, True)
+            self._is_logged_in = True
+            #self.is_connected = None
+            self.stop_listen()
+            asyncio.create_task(self.post_login(is_startup=is_startup))
+            return True
+        return False
+
+    async def _send_reset_notice(self, e: AuthenticationRequired, edit: EventID | None = None) -> None:
+        await self.send_bridge_notice(
+            "Got authentication error from KakaoTalk:\n\n"
+            f"> {e.message}\n\n"
+            "If you changed your KakaoTalk password, this "
+            "is normal and you just need to log in again.",
+            edit=edit,
+            important=True,
+            state_event=BridgeStateEvent.BAD_CREDENTIALS,
+            error_code="kt-auth-error",
+            error_message=str(e),
+        )
+        await self.logout(remove_ktid=False)
+
+    async def fetch_logged_in_user(
+        self, client: Client | None = None, action: str = "restore session"
+    ) -> ProfileStruct:
+        if not client:
+            client = self.client
+        # TODO Retry network connection failures here, or in the client?
+        try:
+            return await client.fetch_logged_in_user()
+        # NOTE Not catching InvalidAccessToken here, as client handles it & tries to refresh the token
+        except AuthenticationRequired as e:
+            if action != "restore session":
+                await self._send_reset_notice(e)
+            raise
+        except Exception:
+            self.log.exception(f"Failed to {action}")
+            raise
+
+    async def is_logged_in(self, _override: bool = False) -> bool:
+        if not self.has_state or not self.client:
+            return False
+        if self._is_logged_in is None or _override:
+            try:
+                self._is_logged_in = bool(await self.get_own_info())
+            except Exception:
+                self.log.exception("Exception checking login status")
+                self._is_logged_in = False
+        return self._is_logged_in
+
+    async def reload_session(
+        self, event_id: EventID | None = None, retries: int = 3, is_startup: bool = False
+    ) -> None:
+        try:
+            await self._load_session(is_startup=is_startup)
+        except AuthenticationRequired as e:
+            await self._send_reset_notice(e, edit=event_id)
+        # TODO Throw a ResponseError on network failures
+        except ResponseError as e:
+            will_retry = retries > 0
+            retry = "Retrying in 1 minute" if will_retry else "Not retrying"
+            notice = f"Failed to connect to KakaoTalk: unknown response error {e}. {retry}"
+            if will_retry:
+                await self.send_bridge_notice(
+                    notice,
+                    edit=event_id,
+                    state_event=BridgeStateEvent.TRANSIENT_DISCONNECT,
+                )
+                await asyncio.sleep(60)
+                await self.reload_session(event_id, retries - 1)
+            else:
+                await self.send_bridge_notice(
+                    notice,
+                    edit=event_id,
+                    important=True,
+                    state_event=BridgeStateEvent.UNKNOWN_ERROR,
+                    error_code="kt-reconnection-error",
+                )
+        except Exception:
+            await self.send_bridge_notice(
+                "Failed to connect to KakaoTalk: unknown error (see logs for more details)",
+                edit=event_id,
+                state_event=BridgeStateEvent.UNKNOWN_ERROR,
+                error_code="kt-reconnection-error",
+            )
+        finally:
+            self._is_refreshing = False
+
+    async def logout(self, remove_ktid: bool = True) -> bool:
+        # TODO Remove tokens too?
+        ok = True
+        self.stop_listen()
+        if self.has_state:
+            # TODO Log out of KakaoTalk if an API exists for it
+            pass
+        if remove_ktid:
+            await self.push_bridge_state(BridgeStateEvent.LOGGED_OUT)
+        self._track_metric(METRIC_LOGGED_IN, False)
+        self._is_logged_in = False
+        #self.is_connected = None
+        if self.client:
+            await self.client.stop()
+            self.client = None
+
+        if remove_ktid:
+            if self.ktid:
+                #await UserPortal.delete_all(self.ktid)
+                del self.by_ktid[self.ktid]
+                self.ktid = None
+            self.uuid = None
+
+        await self.save()
+        return ok
+
+    async def post_login(self, is_startup: bool) -> None:
+        self.log.info("Running post-login actions")
+        self._add_to_cache()
+
+        try:
+            puppet = await pu.Puppet.get_by_ktid(self.ktid)
+
+            if puppet.custom_mxid != self.mxid and puppet.can_auto_login(self.mxid):
+                self.log.info(f"Automatically enabling custom puppet")
+                await puppet.switch_mxid(access_token="auto", mxid=self.mxid)
+        except Exception:
+            self.log.exception("Failed to automatically enable custom puppet")
+
+        assert self.client
+        try:
+            login_result = await self.client.start()
+            await self._sync_channels(login_result, is_startup)
+            # TODO connect listeners, even if channel sync fails (except if it's an auth failure)
+        except AuthenticationRequired as e:
+            await self.send_bridge_notice(
+                f"Got authentication error from KakaoTalk:\n\n> {e.message}\n\n",
+                important=True,
+                state_event=BridgeStateEvent.BAD_CREDENTIALS,
+                error_code="kt-auth-error",
+                error_message=str(e),
+            )
+            await self.logout(remove_ktid=False)
+        except Exception as e:
+            self.log.exception("Failed to start client")
+            await self.push_bridge_state(BridgeStateEvent.UNKNOWN_ERROR, message=str(e))
+
+    async def get_direct_chats(self) -> dict[UserID, list[RoomID]]:
+        return {
+            pu.Puppet.get_mxid_from_id(portal.ktid): [portal.mxid]
+            async for portal in po.Portal.get_all_by_receiver(self.ktid)
+            if portal.mxid
+        }
+
+    @async_time(METRIC_SYNC_CHANNELS)
+    async def _sync_channels(self, login_result: LoginResult, is_startup: bool) -> None:
+        # TODO Look for a way to sync all channels without (re-)logging in
+        sync_count = self.config["bridge.initial_chat_sync"]
+        if sync_count <= 0 or not self.config["bridge.sync_on_startup"] and is_startup:
+            self.log.debug(f"Skipping channel syncing{' on startup' if sync_count > 0 else ''}")
+            return
+        if not login_result.channelList:
+            self.log.debug("No channels to sync")
+            return
+        # TODO What about removed channels? Don't early-return then
+
+        sync_count = min(sync_count, len(login_result.channelList))
+        await self.push_bridge_state(BridgeStateEvent.BACKFILLING)
+        self.log.debug(f"Syncing {sync_count} of {login_result.channelList} channels...")
+        for channel_item in login_result.channelList[:sync_count]:
+            # TODO try-except here, above, below?
+            await self._sync_channel(channel_item)
+
+    async def _sync_channel(self, channel_item: ChannelLoginDataItem) -> None:
+        channel_data = channel_item.channel
+        self.log.debug(f"Syncing channel {channel_data.channelId} (last updated at {channel_item.lastUpdate})")
+        channel_info = channel_data.info
+        if isinstance(channel_data, NormalChannelData):
+            channel_data: NormalChannelData
+            channel_info: NormalChannelInfo
+            self.log.debug(f"Join time: {channel_info.joinTime}")
+        elif isinstance(channel_data, OpenChannelData):
+            channel_data: OpenChannelData
+            self.log.debug(f"channel_data link ID: {channel_data.linkId}")
+            channel_info: OpenChannelInfo
+            self.log.debug(f"channel_info link ID: {channel_info.linkId}")
+            self.log.debug(f"openToken: {channel_info.openToken}")
+            self.log.debug(f"Is direct channel: {channel_info.directChannel}")
+            self.log.debug(f"Has OpenLink: {channel_info.openLink is not None}")
+        else:
+            self.log.error(f"Unexpected channel type: {type(channel_data)}")
+
+        channel_info: ChannelInfo
+        self.log.debug(f"channel_info channel ID: {channel_info.channelId}")
+        self.log.debug(f"Channel data/info IDs match: {channel_data.channelId == channel_info.channelId}")
+        self.log.debug(f"Channel type: {channel_info.type}")
+        self.log.debug(f"Active user count: {channel_info.activeUserCount}")
+        self.log.debug(f"New chat count: {channel_info.newChatCount}")
+        self.log.debug(f"New chat count invalid: {channel_info.newChatCountInvalid}")
+        self.log.debug(f"Last chat log ID: {channel_info.lastChatLogId}")
+        self.log.debug(f"Last seen log ID: {channel_info.lastSeenLogId}")
+        self.log.debug(f"Has last chat log: {channel_info.lastChatLog is not None}")
+        self.log.debug(f"metaMap: {channel_info.metaMap}")
+        self.log.debug(f"User count: {len(channel_info.displayUserList)}")
+        self.log.debug(f"Has push alert: {channel_info.pushAlert}")
+        for display_user_info in channel_info.displayUserList:
+            self.log.debug(f"Member: {display_user_info.nickname} - {display_user_info.profileURL} - {display_user_info.userId}")
+
+        portal = await po.Portal.get_by_ktid(
+            channel_info.channelId,
+            kt_receiver=self.ktid,
+            kt_type=channel_info.type
+        )
+        portal_info = await self.client.get_portal_channel_info(channel_info)
+        if not portal.mxid:
+            await portal.create_matrix_room(self, portal_info)
+        else:
+            await portal.update_matrix_room(self, portal_info)
+            await portal.backfill(self, is_initial=False, channel=channel_info)
+
+    async def get_notice_room(self) -> RoomID:
+        if not self.notice_room:
+            async with self._notice_room_lock:
+                # If someone already created the room while this call was waiting,
+                # don't make a new room
+                if self.notice_room:
+                    return self.notice_room
+                creation_content = {}
+                if not self.config["bridge.federate_rooms"]:
+                    creation_content["m.federate"] = False
+                self.notice_room = await self.az.intent.create_room(
+                    is_direct=True,
+                    invitees=[self.mxid],
+                    topic="KakaoTalk bridge notices",
+                    creation_content=creation_content,
+                )
+                await self.save()
+        return self.notice_room
+
+    async def send_bridge_notice(
+        self,
+        text: str,
+        edit: EventID | None = None,
+        state_event: BridgeStateEvent | None = None,
+        important: bool = False,
+        error_code: str | None = None,
+        error_message: str | None = None,
+    ) -> EventID | None:
+        if state_event:
+            await self.push_bridge_state(
+                state_event,
+                error=error_code,
+                message=error_message if error_code else text,
+            )
+        if self.config["bridge.disable_bridge_notices"]:
+            return None
+        event_id = None
+        try:
+            self.log.debug("Sending bridge notice: %s", text)
+            content = TextMessageEventContent(
+                body=text,
+                msgtype=(MessageType.TEXT if important else MessageType.NOTICE),
+            )
+            if edit:
+                content.set_edit(edit)
+            # This is locked to prevent notices going out in the wrong order
+            async with self._notice_send_lock:
+                event_id = await self.az.intent.send_message(await self.get_notice_room(), content)
+        except Exception:
+            self.log.warning("Failed to send bridge notice", exc_info=True)
+        return edit or event_id
+
+    async def fill_bridge_state(self, state: BridgeState) -> None:
+        await super().fill_bridge_state(state)
+        if self.ktid:
+            state.remote_id = str(self.ktid)
+            puppet = await pu.Puppet.get_by_ktid(self.ktid)
+            state.remote_name = puppet.name
+
+    async def get_bridge_states(self) -> list[BridgeState]:
+        self.log.info("TODO: get_bridge_states")
+        return []
+        """
+        if not self.state:
+            return []
+        state = BridgeState(state_event=BridgeStateEvent.UNKNOWN_ERROR)
+        if self.is_connected:
+            state.state_event = BridgeStateEvent.CONNECTED
+        elif self._is_refreshing or self.mqtt:
+            state.state_event = BridgeStateEvent.TRANSIENT_DISCONNECT
+        return [state]
+        """
+
+    async def get_puppet(self) -> pu.Puppet | None:
+        if not self.ktid:
+            return None
+        return await pu.Puppet.get_by_ktid(self.ktid)
+
+    # region KakaoTalk event handling
+
+    def stop_listen(self) -> None:
+        self.log.info("TODO: stop_listen")
+
+    async def on_logged_in(self, oauth_credential: OAuthCredential) -> None:
+        self.log.debug(f"Successfully logged in as {oauth_credential.uuid}")
+        self.oauth_credential = oauth_credential
+        self.client = Client(self, log=self.log.getChild("ktclient"))
+        await self.save()
+        try:
+            self._logged_in_info = await self.client.fetch_logged_in_user(post_login=True)
+            self._logged_in_info_time = time.monotonic()
+        except Exception:
+            self.log.exception("Failed to fetch post-login info")
+        self.stop_listen()
+        asyncio.create_task(self.post_login(is_startup=True))
+
+    @async_time(METRIC_MESSAGE)
+    async def on_message(self, evt: Chatlog, channel_id: Long) -> None:
+        self.log.info("TODO: on_message")
+
+    # TODO Many more handlers
+
+    # endregion
diff --git a/matrix_appservice_kakaotalk/util/__init__.py b/matrix_appservice_kakaotalk/util/__init__.py
new file mode 100644
index 0000000..85565a7
--- /dev/null
+++ b/matrix_appservice_kakaotalk/util/__init__.py
@@ -0,0 +1 @@
+from .color_log import ColorFormatter
diff --git a/matrix_appservice_kakaotalk/util/color_log.py b/matrix_appservice_kakaotalk/util/color_log.py
new file mode 100644
index 0000000..70543cd
--- /dev/null
+++ b/matrix_appservice_kakaotalk/util/color_log.py
@@ -0,0 +1,25 @@
+# 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 .
+from mautrix.util.logging.color import PREFIX, RESET, ColorFormatter as BaseColorFormatter
+
+FBCHAT_COLOR = PREFIX + "35;1m"  # magenta
+
+
+class ColorFormatter(BaseColorFormatter):
+    def _color_name(self, module: str) -> str:
+        if module.startswith("maufbapi"):
+            return FBCHAT_COLOR + module + RESET
+        return super()._color_name(module)
diff --git a/matrix_appservice_kakaotalk/util/interval.py b/matrix_appservice_kakaotalk/util/interval.py
new file mode 100644
index 0000000..d43a98e
--- /dev/null
+++ b/matrix_appservice_kakaotalk/util/interval.py
@@ -0,0 +1,7 @@
+import random
+
+
+def get_interval(value):
+    if isinstance(value, list):
+        return random.randint(*value)
+    return value
diff --git a/matrix_appservice_kakaotalk/version.py b/matrix_appservice_kakaotalk/version.py
new file mode 100644
index 0000000..0b22680
--- /dev/null
+++ b/matrix_appservice_kakaotalk/version.py
@@ -0,0 +1 @@
+from .get_version import git_revision, git_tag, linkified_version, version
diff --git a/matrix_appservice_kakaotalk/web/__init__.py b/matrix_appservice_kakaotalk/web/__init__.py
new file mode 100644
index 0000000..57c6f1f
--- /dev/null
+++ b/matrix_appservice_kakaotalk/web/__init__.py
@@ -0,0 +1 @@
+from .public import PublicBridgeWebsite
diff --git a/matrix_appservice_kakaotalk/web/public.py b/matrix_appservice_kakaotalk/web/public.py
new file mode 100644
index 0000000..a910dff
--- /dev/null
+++ b/matrix_appservice_kakaotalk/web/public.py
@@ -0,0 +1,380 @@
+# 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 .
+from __future__ import annotations
+
+import asyncio
+import json
+import logging
+import random
+import string
+import time
+
+from aiohttp import web
+import pkg_resources
+
+from mautrix.types import UserID
+from mautrix.util.signed_token import verify_token
+
+from .. import puppet as pu, user as u
+
+
+class InvalidTokenError(Exception):
+    pass
+
+
+class PublicBridgeWebsite:
+    log: logging.Logger = logging.getLogger("mau.web.public")
+    app: web.Application
+    secret_key: str
+    shared_secret: str
+    ready_wait: asyncio.Future | None
+
+    def __init__(self, shared_secret: str, loop: asyncio.AbstractEventLoop) -> None:
+        self.app = web.Application()
+        self.ready_wait = loop.create_future()
+        self.secret_key = "".join(random.choices(string.ascii_lowercase + string.digits, k=64))
+        self.shared_secret = shared_secret
+        for path in (
+            "whoami",
+            "login",
+            "login/prepare",
+            "login/2fa",
+            "login/check_approved",
+            "login/approved",
+            "logout",
+            "disconnect",
+            "reconnect",
+            "refresh",
+        ):
+            self.app.router.add_options(f"/api/{path}", self.login_options)
+        self.app.router.add_get("/api/whoami", self.status)
+        self.app.router.add_post("/api/login/prepare", self.login_prepare)
+        self.app.router.add_post("/api/login", self.login)
+        self.app.router.add_post("/api/login/2fa", self.login_2fa)
+        self.app.router.add_get("/api/login/check_approved", self.login_check_approved)
+        self.app.router.add_post("/api/login/approved", self.login_approved)
+        self.app.router.add_post("/api/logout", self.logout)
+        self.app.router.add_post("/api/disconnect", self.disconnect)
+        self.app.router.add_post("/api/reconnect", self.reconnect)
+        self.app.router.add_post("/api/refresh", self.refresh)
+        self.app.router.add_static(
+            "/", pkg_resources.resource_filename("matrix_appservice_kakaotalk.web", "static/")
+        )
+
+    def verify_token(self, token: str) -> UserID:
+        token = verify_token(self.secret_key, token)
+        if token:
+            if token.get("expiry", 0) < int(time.time()):
+                raise InvalidTokenError("Access token has expired")
+            return UserID(token.get("mxid"))
+        raise InvalidTokenError("Access token is invalid")
+
+    @property
+    def _acao_headers(self) -> dict[str, str]:
+        return {
+            "Access-Control-Allow-Origin": "*",
+            "Access-Control-Allow-Headers": "Authorization, Content-Type",
+            "Access-Control-Allow-Methods": "GET, POST, OPTIONS",
+        }
+
+    @property
+    def _headers(self) -> dict[str, str]:
+        return {
+            **self._acao_headers,
+            "Content-Type": "application/json",
+        }
+
+    async def login_options(self, _: web.Request) -> web.Response:
+        return web.Response(status=200, headers=self._headers)
+
+    async def check_token(self, request: web.Request) -> u.User | None:
+        if self.ready_wait:
+            await self.ready_wait
+            self.ready_wait = None
+        try:
+            token = request.headers["Authorization"]
+            token = token[len("Bearer ") :]
+        except KeyError:
+            raise web.HTTPBadRequest(
+                text='{"error": "Missing Authorization header"}', headers=self._headers
+            )
+        except IndexError:
+            raise web.HTTPBadRequest(
+                text='{"error": "Malformed Authorization header"}',
+                headers=self._headers,
+            )
+        if self.shared_secret and token == self.shared_secret:
+            try:
+                user_id = request.query["user_id"]
+            except KeyError:
+                raise web.HTTPBadRequest(
+                    text='{"error": "Missing user_id query param"}',
+                    headers=self._headers,
+                )
+        else:
+            try:
+                user_id = self.verify_token(token)
+            except InvalidTokenError as e:
+                raise web.HTTPForbidden(
+                    text=json.dumps(
+                        {"error": f"{e}, please request a new one from the bridge bot"}
+                    ),
+                    headers=self._headers,
+                )
+
+        user = await u.User.get_by_mxid(user_id)
+        return user
+
+    async def status(self, request: web.Request) -> web.Response:
+        user = await self.check_token(request)
+        data = {
+            "permissions": user.permission_level,
+            "mxid": user.mxid,
+            "kakaotalk": None,
+        }
+        if user.client:
+            try:
+                info = await user.get_own_info()
+            except Exception:
+                # TODO do something?
+                self.log.warning(
+                    "Exception while getting self from status endpoint", exc_info=True
+                )
+            else:
+                data["kakaotalk"] = info.serialize()
+                data["kakaotalk"]["connected"] = user.is_connected
+                data["kakaotalk"][
+                    "device_displayname"
+                ] = f"{user.state.device.manufacturer} {user.state.device.name}"
+        return web.json_response(data, headers=self._acao_headers)
+
+    async def login_prepare(self, request: web.Request) -> web.Response:
+        self.log.info("TODO")
+        """
+        user = await self.check_token(request)
+        state = AndroidState()
+        state.generate(user.mxid)
+        api = AndroidAPI(state, log=user.log.getChild("login-api"))
+        user.command_status = {
+            "action": "Login",
+            "state": state,
+            "api": api,
+        }
+        try:
+            await api.mobile_config_sessionless()
+        except Exception as e:
+            self.log.exception(
+                f"Failed to get mobile_config_sessionless to prepare login for {user.mxid}"
+            )
+            return web.json_response({"error": str(e)}, headers=self._acao_headers, status=500)
+        return web.json_response(
+            {
+                "status": "login",
+                "password_encryption_key_id": state.session.password_encryption_key_id,
+                "password_encryption_pubkey": state.session.password_encryption_pubkey,
+            },
+            headers=self._acao_headers,
+        )
+        """
+
+    async def login(self, request: web.Request) -> web.Response:
+        self.log.info("TODO")
+        """
+        user = await self.check_token(request)
+
+        try:
+            data = await request.json()
+        except json.JSONDecodeError:
+            raise web.HTTPBadRequest(text='{"error": "Malformed JSON"}', headers=self._headers)
+
+        try:
+            email = data["email"]
+        except KeyError:
+            raise web.HTTPBadRequest(text='{"error": "Missing email"}', headers=self._headers)
+        try:
+            password = data["password"]
+            encrypted_password = None
+        except KeyError:
+            try:
+                encrypted_password = data["encrypted_password"]
+                password = None
+            except KeyError:
+                raise web.HTTPBadRequest(
+                    text='{"error": "Missing password"}', headers=self._headers
+                )
+
+        if encrypted_password:
+            if not user.command_status or user.command_status["action"] != "Login":
+                raise web.HTTPBadRequest(
+                    text='{"error": "No login in progress"}', headers=self._headers
+                )
+            state: AndroidState = user.command_status["state"]
+            api: AndroidAPI = user.command_status["api"]
+        else:
+            state = AndroidState()
+            state.generate(user.mxid)
+            api = AndroidAPI(state, log=user.log.getChild("login-api"))
+            await api.mobile_config_sessionless()
+
+        try:
+            self.log.debug(f"Logging in as {email} for {user.mxid}")
+            resp = await api.login(email, password=password, encrypted_password=encrypted_password)
+            self.log.debug(f"Got successful login response with UID {resp.uid} for {user.mxid}")
+            await user.on_logged_in(state)
+            return web.json_response({"status": "logged-in"}, headers=self._acao_headers)
+        except TwoFactorRequired as e:
+            self.log.debug(
+                f"Got 2-factor auth required login error with UID {e.uid} for {user.mxid}"
+            )
+            user.command_status = {
+                "action": "Login",
+                "state": state,
+                "api": api,
+            }
+            return web.json_response(
+                {
+                    "status": "two-factor",
+                    "error": e.data,
+                },
+                headers=self._acao_headers,
+            )
+        except OAuthException as e:
+            self.log.debug(f"Got OAuthException {e} for {user.mxid}")
+            return web.json_response({"error": str(e)}, headers=self._acao_headers, status=401)
+        """
+
+    async def login_2fa(self, request: web.Request) -> web.Response:
+        self.log.info("TODO")
+        """
+        user = await self.check_token(request)
+
+        if not user.command_status or user.command_status["action"] != "Login":
+            raise web.HTTPBadRequest(
+                text='{"error": "No login in progress"}', headers=self._headers
+            )
+
+        try:
+            data = await request.json()
+        except json.JSONDecodeError:
+            raise web.HTTPBadRequest(text='{"error": "Malformed JSON"}', headers=self._headers)
+
+        try:
+            email = data["email"]
+            code = data["code"]
+        except KeyError as e:
+            raise web.HTTPBadRequest(
+                text=json.dumps({"error": f"Missing key {e}"}), headers=self._headers
+            )
+
+        state: AndroidState = user.command_status["state"]
+        api: AndroidAPI = user.command_status["api"]
+        try:
+            self.log.debug(f"Sending 2-factor auth code for {user.mxid}")
+            resp = await api.login_2fa(email, code)
+            self.log.debug(
+                f"Got successful login response with UID {resp.uid} for {user.mxid}"
+                " after 2fa login"
+            )
+            await user.on_logged_in(state)
+            return web.json_response({"status": "logged-in"}, headers=self._acao_headers)
+        except IncorrectPassword:
+            self.log.debug(f"Got incorrect 2fa code error for {user.mxid}")
+            return web.json_response(
+                {
+                    "error": "Incorrect two-factor authentication code",
+                    "status": "incorrect-code",
+                },
+                headers=self._acao_headers,
+                status=401,
+            )
+        except OAuthException as e:
+            self.log.debug(f"Got OAuthException {e} for {user.mxid} in 2fa stage")
+            return web.json_response({"error": str(e)}, headers=self._acao_headers, status=401)
+        """
+
+    async def login_approved(self, request: web.Request) -> web.Response:
+        self.log.info("TODO")
+        """
+        user = await self.check_token(request)
+
+        if not user.command_status or user.command_status["action"] != "Login":
+            raise web.HTTPBadRequest(
+                text='{"error": "No login in progress"}', headers=self._headers
+            )
+
+        state: AndroidState = user.command_status["state"]
+        api: AndroidAPI = user.command_status["api"]
+        try:
+            self.log.debug(f"Trying to log in after approval for {user.mxid}")
+            resp = await api.login_approved()
+            self.log.debug(
+                f"Got successful login response with UID {resp.uid} for {user.mxid}"
+                " after approval login"
+            )
+            await user.on_logged_in(state)
+            return web.json_response({"status": "logged-in"}, headers=self._acao_headers)
+        except OAuthException as e:
+            self.log.debug(f"Got OAuthException {e} for {user.mxid} in checkpoint login stage")
+            return web.json_response({"error": str(e)}, headers=self._acao_headers, status=401)
+        """
+
+    async def login_check_approved(self, request: web.Request) -> web.Response:
+        self.log.info("TODO")
+        """
+        user = await self.check_token(request)
+
+        if not user.command_status or user.command_status["action"] != "Login":
+            raise web.HTTPBadRequest(
+                text='{"error": "No login in progress"}', headers=self._headers
+            )
+
+        api: AndroidAPI = user.command_status["api"]
+        approved = await api.check_approved_machine()
+        return web.json_response({"approved": approved}, headers=self._acao_headers)
+        """
+
+    async def logout(self, request: web.Request) -> web.Response:
+        user = await self.check_token(request)
+
+        puppet = await pu.Puppet.get_by_ktid(user.ktid)
+        await user.logout()
+        if puppet.is_real_user:
+            await puppet.switch_mxid(None, None)
+        return web.json_response({}, headers=self._acao_headers)
+
+    async def disconnect(self, request: web.Request) -> web.Response:
+        user = await self.check_token(request)
+        if not user.is_connected:
+            raise web.HTTPBadRequest(
+                text='{"error": "User is not connected"}', headers=self._headers
+            )
+        user.mqtt.disconnect()
+        await user.listen_task
+        return web.json_response({}, headers=self._acao_headers)
+
+    async def reconnect(self, request: web.Request) -> web.Response:
+        user = await self.check_token(request)
+        if user.is_connected:
+            raise web.HTTPConflict(
+                text='{"error": "User is already connected"}', headers=self._headers
+            )
+        user.start_listen()
+        return web.json_response({}, headers=self._acao_headers)
+
+    async def refresh(self, request: web.Request) -> web.Response:
+        user = await self.check_token(request)
+        await user.refresh()
+        return web.json_response({}, headers=self._acao_headers)
diff --git a/matrix_appservice_kakaotalk/web/static/lib/asn1hex-1.1.min.js b/matrix_appservice_kakaotalk/web/static/lib/asn1hex-1.1.min.js
new file mode 100644
index 0000000..ced8b9e
--- /dev/null
+++ b/matrix_appservice_kakaotalk/web/static/lib/asn1hex-1.1.min.js
@@ -0,0 +1,7 @@
+// asn1hex-1.2.8.js (c) 2012-2020 Kenji Urushima | kjur.github.com/jsrsasign/license
+
+import BigInteger from "./jsbn.min.js"
+
+var ASN1HEX=new function(){};ASN1HEX.getLblen=function(t,n){if("8"!=t.substr(n+2,1))return 1;var r=parseInt(t.substr(n+3,1));return 0==r?-1:0=e)break}return g},ASN1HEX.getNthChildIdx=function(t,n,r){return ASN1HEX.getChildIdx(t,n)[r]},ASN1HEX.getIdxbyList=function(t,n,r,e){var i,u,g=ASN1HEX;return 0==r.length?void 0!==e&&t.substr(n,2)!==e?-1:n:(i=r.shift())>=(u=g.getChildIdx(t,n)).length?-1:g.getIdxbyList(t,u[i],r,e)},ASN1HEX.getIdxbyListEx=function(t,n,r,e){var i,u,g=ASN1HEX;if(0==r.length)return void 0!==e&&t.substr(n,2)!==e?-1:n;i=r.shift(),u=g.getChildIdx(t,n);for(var s=0,o=0;o=t.length?null:i.getTLV(t,u)},ASN1HEX.getTLVbyListEx=function(t,n,r,e){var i=ASN1HEX,u=i.getIdxbyListEx(t,n,r,e);return-1==u?null:i.getTLV(t,u)},ASN1HEX.getVbyList=function(t,n,r,e,i){var u,g,s=ASN1HEX;return-1==(u=s.getIdxbyList(t,n,r,e))?null:u>=t.length?null:(g=s.getV(t,u),!0===i&&(g=g.substr(2)),g)},ASN1HEX.getVbyListEx=function(t,n,r,e,i){var u,g,s=ASN1HEX;return-1==(u=s.getIdxbyListEx(t,n,r,e))?null:(g=s.getV(t,u),"03"==t.substr(u,2)&&!1!==i&&(g=g.substr(2)),g)},ASN1HEX.getInt=function(t,n,r){null==r&&(r=-1);try{var e=t.substr(n,2);if("02"!=e&&"03"!=e)return r;var i=ASN1HEX.getV(t,n);return"02"==e?parseInt(i,16):bitstrtoint(i)}catch(t){return r}},ASN1HEX.getOID=function(t,n,r){null==r&&(r=null);try{if("06"!=t.substr(n,2))return r;var e=ASN1HEX.getV(t,n);return hextooid(e)}catch(t){return r}},ASN1HEX.getOIDName=function(t,n,r){null==r&&(r=null);try{var e=ASN1HEX.getOID(t,n,r);if(e==r)return r;var i=KJUR.asn1.x509.OID.oid2name(e);return""==i?e:i}catch(t){return r}},ASN1HEX.getString=function(t,n,r){null==r&&(r=null);try{var e=ASN1HEX.getV(t,n);return hextorstr(e)}catch(t){return r}},ASN1HEX.hextooidstr=function(t){var n=function(t,n){return t.length>=n?t:new Array(n-t.length+1).join("0")+t},r=[],e=t.substr(0,2),i=parseInt(e,16);r[0]=new String(Math.floor(i/40)),r[1]=new String(i%40);for(var u=t.substr(2),g=[],s=0;s0&&(l=l+"."+o.join(".")),l},ASN1HEX.dump=function(t,n,r,e){var i=ASN1HEX,u=i.getV,g=i.dump,s=i.getChildIdx,o=t;t instanceof KJUR.asn1.ASN1Object&&(o=t.getEncodedHex());var a=function(t,n){return t.length<=2*n?t:t.substr(0,n)+"..(total "+t.length/2+"bytes).."+t.substr(t.length-n,n)};void 0===n&&(n={ommit_long_octet:32}),void 0===r&&(r=0),void 0===e&&(e="");var l,f=n.ommit_long_octet;if("01"==(l=o.substr(r,2)))return"00"==(E=u(o,r))?e+"BOOLEAN FALSE\n":e+"BOOLEAN TRUE\n";if("02"==l)return e+"INTEGER "+a(E=u(o,r),f)+"\n";if("03"==l){var E=u(o,r);if(i.isASN1HEX(E.substr(2))){var h=e+"BITSTRING, encapsulates\n";return h+=g(E.substr(2),n,0,e+"  ")}return e+"BITSTRING "+a(E,f)+"\n"}if("04"==l){E=u(o,r);if(i.isASN1HEX(E)){h=e+"OCTETSTRING, encapsulates\n";return h+=g(E,n,0,e+"  ")}return e+"OCTETSTRING "+a(E,f)+"\n"}if("05"==l)return e+"NULL\n";if("06"==l){var S=u(o,r),N=KJUR.asn1.ASN1Util.oidHexToInt(S),A=KJUR.asn1.x509.OID.oid2name(N),b=N.replace(/\./g," ");return""!=A?e+"ObjectIdentifier "+A+" ("+b+")\n":e+"ObjectIdentifier ("+b+")\n"}if("0a"==l)return e+"ENUMERATED "+parseInt(u(o,r))+"\n";if("0c"==l)return e+"UTF8String '"+hextoutf8(u(o,r))+"'\n";if("13"==l)return e+"PrintableString '"+hextoutf8(u(o,r))+"'\n";if("14"==l)return e+"TeletexString '"+hextoutf8(u(o,r))+"'\n";if("16"==l)return e+"IA5String '"+hextoutf8(u(o,r))+"'\n";if("17"==l)return e+"UTCTime "+hextoutf8(u(o,r))+"\n";if("18"==l)return e+"GeneralizedTime "+hextoutf8(u(o,r))+"\n";if("1a"==l)return e+"VisualString '"+hextoutf8(u(o,r))+"'\n";if("1e"==l)return e+"BMPString '"+hextoutf8(u(o,r))+"'\n";if("30"==l){if("3000"==o.substr(r,4))return e+"SEQUENCE {}\n";h=e+"SEQUENCE\n";var c=n;if((2==(v=s(o,r)).length||3==v.length)&&"06"==o.substr(v[0],2)&&"04"==o.substr(v[v.length-1],2)){A=i.oidname(u(o,v[0]));var x=JSON.parse(JSON.stringify(n));x.x509ExtName=A,c=x}for(var H=0;H31)&&(128==(192&r)&&(31&r)==e))}catch(t){return!1}},ASN1HEX.isASN1HEX=function(t){var n=ASN1HEX;if(t.length%2==1)return!1;var r=n.getVblen(t,0),e=t.substr(0,2),i=n.getL(t,0);return t.length-e.length-i.length==2*r},ASN1HEX.checkStrictDER=function(t,n,r,e,i){var u=ASN1HEX;if(void 0===r){if("string"!=typeof t)throw new Error("not hex string");if(t=t.toLowerCase(),!KJUR.lang.String.isHex(t))throw new Error("not hex string");r=t.length,i=(e=t.length/2)<128?1:Math.ceil(e.toString(16))+1}if(u.getL(t,n).length>2*i)throw new Error("L of TLV too long: idx="+n);var g=u.getVblen(t,n);if(g>e)throw new Error("value of L too long than hex: idx="+n);var s=u.getTLV(t,n),o=s.length-2-u.getL(t,n).length;if(o!==2*g)throw new Error("V string length and L's value not the same:"+o+"/"+2*g);if(0===n&&t.length!=s.length)throw new Error("total length and TLV length unmatch:"+t.length+"!="+s.length);var a=t.substr(n,2);if("02"===a){var l=u.getVidx(t,n);if("00"==t.substr(l,2)&&t.charCodeAt(l+2)<56)throw new Error("not least zeros for DER INTEGER")}if(32&parseInt(a,16)){for(var f=u.getVblen(t,n),E=0,h=u.getChildIdx(t,n),S=0;S=5&&((e||!n&&5===r)&&(h.push(r,0,e,s),r=6),n&&(h.push(r,n,0,s),r=6)),e=""},a=0;a"===t?(r=1,e=""):e=t+e[0]:u?t===u?u="":e+=t:'"'===t||"'"===t?u=t:">"===t?(p(),r=1):r&&("="===t?(r=5,s=e,e=""):"/"===t&&(r<5||">"===n[a][l+1])?(p(),3===r&&(h=h[0]),r=h,(h=h[0]).push(2,0,r),r=0):" "===t||"\t"===t||"\n"===t||"\r"===t?(p(),r=2):e+=t),3===r&&"!--"===e&&(r=4,h=h[0])}return p(),h}(s)),r),arguments,[])).length>1?r:r[0]}
diff --git a/matrix_appservice_kakaotalk/web/static/lib/jsbn.min.js b/matrix_appservice_kakaotalk/web/static/lib/jsbn.min.js
new file mode 100644
index 0000000..776f93c
--- /dev/null
+++ b/matrix_appservice_kakaotalk/web/static/lib/jsbn.min.js
@@ -0,0 +1,9 @@
+// From http://www-cs-students.stanford.edu/~tjw/jsbn/jsbn.js
+// Also includes bnIntValue from http://www-cs-students.stanford.edu/~tjw/jsbn/jsbn2.js
+
+// Copyright (c) 2005  Tom Wu
+// http://www-cs-students.stanford.edu/~tjw/jsbn/LICENSE
+
+var dbits,canary=0xdeadbeefcafe,j_lm=15715070==(16777215&canary);function BigInteger(t,i,r){null!=t&&("number"==typeof t?this.fromNumber(t,i,r):null==i&&"string"!=typeof t?this.fromString(t,256):this.fromString(t,i))}function nbi(){return new BigInteger(null)}function am1(t,i,r,o,n,e){for(;--e>=0;){var s=i*this[t++]+r[o]+n;n=Math.floor(s/67108864),r[o++]=67108863&s}return n}function am2(t,i,r,o,n,e){for(var s=32767&i,h=i>>15;--e>=0;){var p=32767&this[t],a=this[t++]>>15,f=h*p+a*s;n=((p=s*p+((32767&f)<<15)+r[o]+(1073741823&n))>>>30)+(f>>>15)+h*a+(n>>>30),r[o++]=1073741823&p}return n}function am3(t,i,r,o,n,e){for(var s=16383&i,h=i>>14;--e>=0;){var p=16383&this[t],a=this[t++]>>14,f=h*p+a*s;n=((p=s*p+((16383&f)<<14)+r[o]+n)>>28)+(f>>14)+h*a,r[o++]=268435455&p}return n}j_lm&&"Microsoft Internet Explorer"==navigator.appName?(BigInteger.prototype.am=am2,dbits=30):j_lm&&"Netscape"!=navigator.appName?(BigInteger.prototype.am=am1,dbits=26):(BigInteger.prototype.am=am3,dbits=28),BigInteger.prototype.DB=dbits,BigInteger.prototype.DM=(1<=0;--i)t[i]=this[i];t.t=this.t,t.s=this.s}function bnpFromInt(t){this.t=1,this.s=t<0?-1:0,t>0?this[0]=t:t<-1?this[0]=t+this.DV:this.t=0}function nbv(t){var i=nbi();return i.fromInt(t),i}function bnpFromString(t,i){var r;if(16==i)r=4;else if(8==i)r=3;else if(256==i)r=8;else if(2==i)r=1;else if(32==i)r=5;else{if(4!=i)return void this.fromRadix(t,i);r=2}this.t=0,this.s=0;for(var o=t.length,n=!1,e=0;--o>=0;){var s=8==r?255&t[o]:intAt(t,o);s<0?"-"==t.charAt(o)&&(n=!0):(n=!1,0==e?this[this.t++]=s:e+r>this.DB?(this[this.t-1]|=(s&(1<>this.DB-e):this[this.t-1]|=s<=this.DB&&(e-=this.DB))}8==r&&0!=(128&t[0])&&(this.s=-1,e>0&&(this[this.t-1]|=(1<0&&this[this.t-1]==t;)--this.t}function bnToString(t){if(this.s<0)return"-"+this.negate().toString(t);var i;if(16==t)i=4;else if(8==t)i=3;else if(2==t)i=1;else if(32==t)i=5;else{if(4!=t)return this.toRadix(t);i=2}var r,o=(1<0)for(h>h)>0&&(n=!0,e=int2char(r));s>=0;)h>(h+=this.DB-i)):(r=this[s]>>(h-=i)&o,h<=0&&(h+=this.DB,--s)),r>0&&(n=!0),n&&(e+=int2char(r));return n?e:"0"}function bnNegate(){var t=nbi();return BigInteger.ZERO.subTo(this,t),t}function bnAbs(){return this.s<0?this.negate():this}function bnCompareTo(t){var i=this.s-t.s;if(0!=i)return i;var r=this.t;if(0!=(i=r-t.t))return this.s<0?-i:i;for(;--r>=0;)if(0!=(i=this[r]-t[r]))return i;return 0}function nbits(t){var i,r=1;return 0!=(i=t>>>16)&&(t=i,r+=16),0!=(i=t>>8)&&(t=i,r+=8),0!=(i=t>>4)&&(t=i,r+=4),0!=(i=t>>2)&&(t=i,r+=2),0!=(i=t>>1)&&(t=i,r+=1),r}function bnBitLength(){return this.t<=0?0:this.DB*(this.t-1)+nbits(this[this.t-1]^this.s&this.DM)}function bnpDLShiftTo(t,i){var r;for(r=this.t-1;r>=0;--r)i[r+t]=this[r];for(r=t-1;r>=0;--r)i[r]=0;i.t=this.t+t,i.s=this.s}function bnpDRShiftTo(t,i){for(var r=t;r=0;--r)i[r+s+1]=this[r]>>n|h,h=(this[r]&e)<=0;--r)i[r]=0;i[s]=h,i.t=this.t+s+1,i.s=this.s,i.clamp()}function bnpRShiftTo(t,i){i.s=this.s;var r=Math.floor(t/this.DB);if(r>=this.t)i.t=0;else{var o=t%this.DB,n=this.DB-o,e=(1<>o;for(var s=r+1;s>o;o>0&&(i[this.t-r-1]|=(this.s&e)<>=this.DB;if(t.t>=this.DB;o+=this.s}else{for(o+=this.s;r>=this.DB;o-=t.s}i.s=o<0?-1:0,o<-1?i[r++]=this.DV+o:o>0&&(i[r++]=o),i.t=r,i.clamp()}function bnpMultiplyTo(t,i){var r=this.abs(),o=t.abs(),n=r.t;for(i.t=n+o.t;--n>=0;)i[n]=0;for(n=0;n=0;)t[r]=0;for(r=0;r=i.DV&&(t[r+i.t]-=i.DV,t[r+i.t+1]=1)}t.t>0&&(t[t.t-1]+=i.am(r,i[r],t,2*r,0,1)),t.s=0,t.clamp()}function bnpDivRemTo(t,i,r){var o=t.abs();if(!(o.t<=0)){var n=this.abs();if(n.t0?(o.lShiftTo(p,e),n.lShiftTo(p,r)):(o.copyTo(e),n.copyTo(r));var a=e.t,f=e[a-1];if(0!=f){var u=f*(1<1?e[a-2]>>this.F2:0),g=this.FV/u,m=(1<=0&&(r[r.t++]=1,r.subTo(l,r)),BigInteger.ONE.dlShiftTo(a,l),l.subTo(e,e);e.t=0;){var B=r[--v]==f?this.DM:Math.floor(r[v]*g+(r[v-1]+c)*m);if((r[v]+=e.am(0,B,r,b,0,a))0&&r.rShiftTo(p,r),s<0&&BigInteger.ZERO.subTo(r,r)}}}function bnMod(t){var i=nbi();return this.abs().divRemTo(t,null,i),this.s<0&&i.compareTo(BigInteger.ZERO)>0&&t.subTo(i,i),i}function Classic(t){this.m=t}function cConvert(t){return t.s<0||t.compareTo(this.m)>=0?t.mod(this.m):t}function cRevert(t){return t}function cReduce(t){t.divRemTo(this.m,null,t)}function cMulTo(t,i,r){t.multiplyTo(i,r),this.reduce(r)}function cSqrTo(t,i){t.squareTo(i),this.reduce(i)}function bnpInvDigit(){if(this.t<1)return 0;var t=this[0];if(0==(1&t))return 0;var i=3&t;return(i=(i=(i=(i=i*(2-(15&t)*i)&15)*(2-(255&t)*i)&255)*(2-((65535&t)*i&65535))&65535)*(2-t*i%this.DV)%this.DV)>0?this.DV-i:-i}function Montgomery(t){this.m=t,this.mp=t.invDigit(),this.mpl=32767&this.mp,this.mph=this.mp>>15,this.um=(1<0&&this.m.subTo(i,i),i}function montRevert(t){var i=nbi();return t.copyTo(i),this.reduce(i),i}function montReduce(t){for(;t.t<=this.mt2;)t[t.t++]=0;for(var i=0;i>15)*this.mpl&this.um)<<15)&t.DM;for(t[r=i+this.m.t]+=this.m.am(0,o,t,i,0,this.m.t);t[r]>=t.DV;)t[r]-=t.DV,t[++r]++}t.clamp(),t.drShiftTo(this.m.t,t),t.compareTo(this.m)>=0&&t.subTo(this.m,t)}function montSqrTo(t,i){t.squareTo(i),this.reduce(i)}function montMulTo(t,i,r){t.multiplyTo(i,r),this.reduce(r)}function bnpIsEven(){return 0==(this.t>0?1&this[0]:this.s)}function bnpExp(t,i){if(t>4294967295||t<1)return BigInteger.ONE;var r=nbi(),o=nbi(),n=i.convert(this),e=nbits(t)-1;for(n.copyTo(r);--e>=0;)if(i.sqrTo(r,o),(t&1<0)i.mulTo(o,n,r);else{var s=r;r=o,o=s}return i.revert(r)}function bnModPowInt(t,i){var r;return r=t<256||i.isEven()?new Classic(i):new Montgomery(i),this.exp(t,r)}function bnIntValue(){if(this.s<0){if(1==this.t)return this[0]-this.DV;if(0==this.t)return-1}else{if(1==this.t)return this[0];if(0==this.t)return 0}return(this[1]&(1<<32-this.DB)-1)<code{border-radius:0;display:block;padding:1rem 1.5rem;white-space:pre}hr{border:0;border-top:.1rem solid #f4f5f6;margin:3rem 0}input:not([type]),input[type=color],input[type=date],input[type=datetime-local],input[type=datetime],input[type=email],input[type=month],input[type=number],input[type=password],input[type=search],input[type=tel],input[type=text],input[type=url],input[type=week],select,textarea{-webkit-appearance:none;background-color:transparent;border:.1rem solid #d1d1d1;border-radius:.4rem;box-shadow:none;box-sizing:inherit;height:3.8rem;padding:.6rem 1rem .7rem;width:100%}input:not([type]):focus,input[type=color]:focus,input[type=date]:focus,input[type=datetime-local]:focus,input[type=datetime]:focus,input[type=email]:focus,input[type=month]:focus,input[type=number]:focus,input[type=password]:focus,input[type=search]:focus,input[type=tel]:focus,input[type=text]:focus,input[type=url]:focus,input[type=week]:focus,select:focus,textarea:focus{border-color:#9b4dca;outline:0}select{background:url('data:image/svg+xml;utf8,') center right no-repeat;padding-right:3rem}select:focus{background-image:url('data:image/svg+xml;utf8,')}select[multiple]{background:0 0;height:auto}textarea{min-height:6.5rem}label,legend{display:block;font-size:1.6rem;font-weight:700;margin-bottom:.5rem}fieldset{border-width:0;padding:0}input[type=checkbox],input[type=radio]{display:inline}.label-inline{display:inline-block;font-weight:400;margin-left:.5rem}.container{margin:0 auto;max-width:112rem;padding:0 2rem;position:relative;width:100%}.row{display:flex;flex-direction:column;padding:0;width:100%}.row.row-no-padding{padding:0}.row.row-no-padding>.column{padding:0}.row.row-wrap{flex-wrap:wrap}.row.row-top{align-items:flex-start}.row.row-bottom{align-items:flex-end}.row.row-center{align-items:center}.row.row-stretch{align-items:stretch}.row.row-baseline{align-items:baseline}.row .column{display:block;flex:1 1 auto;margin-left:0;max-width:100%;width:100%}.row .column.column-offset-10{margin-left:10%}.row .column.column-offset-20{margin-left:20%}.row .column.column-offset-25{margin-left:25%}.row .column.column-offset-33,.row .column.column-offset-34{margin-left:33.3333%}.row .column.column-offset-40{margin-left:40%}.row .column.column-offset-50{margin-left:50%}.row .column.column-offset-60{margin-left:60%}.row .column.column-offset-66,.row .column.column-offset-67{margin-left:66.6666%}.row .column.column-offset-75{margin-left:75%}.row .column.column-offset-80{margin-left:80%}.row .column.column-offset-90{margin-left:90%}.row .column.column-10{flex:0 0 10%;max-width:10%}.row .column.column-20{flex:0 0 20%;max-width:20%}.row .column.column-25{flex:0 0 25%;max-width:25%}.row .column.column-33,.row .column.column-34{flex:0 0 33.3333%;max-width:33.3333%}.row .column.column-40{flex:0 0 40%;max-width:40%}.row .column.column-50{flex:0 0 50%;max-width:50%}.row .column.column-60{flex:0 0 60%;max-width:60%}.row .column.column-66,.row .column.column-67{flex:0 0 66.6666%;max-width:66.6666%}.row .column.column-75{flex:0 0 75%;max-width:75%}.row .column.column-80{flex:0 0 80%;max-width:80%}.row .column.column-90{flex:0 0 90%;max-width:90%}.row .column .column-top{align-self:flex-start}.row .column .column-bottom{align-self:flex-end}.row .column .column-center{align-self:center}@media (min-width:40rem){.row{flex-direction:row;margin-left:-1rem;width:calc(100% + 2rem)}.row .column{margin-bottom:inherit;padding:0 1rem}}a{color:#9b4dca;text-decoration:none}a:focus,a:hover{color:#606c76}dl,ol,ul{list-style:none;margin-top:0;padding-left:0}dl dl,dl ol,dl ul,ol dl,ol ol,ol ul,ul dl,ul ol,ul ul{font-size:90%;margin:1.5rem 0 1.5rem 3rem}ol{list-style:decimal inside}ul{list-style:circle inside}.button,button,dd,dt,li{margin-bottom:1rem}fieldset,input,select,textarea{margin-bottom:1.5rem}blockquote,dl,figure,form,ol,p,pre,table,ul{margin-bottom:2.5rem}table{border-spacing:0;display:block;overflow-x:auto;text-align:left;width:100%}td,th{border-bottom:.1rem solid #e1e1e1;padding:1.2rem 1.5rem}td:first-child,th:first-child{padding-left:0}td:last-child,th:last-child{padding-right:0}@media (min-width:40rem){table{display:table;overflow-x:initial}}b,strong{font-weight:700}p{margin-top:0}h1,h2,h3,h4,h5,h6{font-weight:300;letter-spacing:-.1rem;margin-bottom:2rem;margin-top:0}h1{font-size:4.6rem;line-height:1.2}h2{font-size:3.6rem;line-height:1.25}h3{font-size:2.8rem;line-height:1.3}h4{font-size:2.2rem;letter-spacing:-.08rem;line-height:1.35}h5{font-size:1.8rem;letter-spacing:-.05rem;line-height:1.5}h6{font-size:1.6rem;letter-spacing:0;line-height:1.4}img{max-width:100%}.clearfix:after{clear:both;content:' ';display:table}.float-left{float:left}.float-right{float:right}
diff --git a/matrix_appservice_kakaotalk/web/static/lib/normalize-8.0.1.min.css b/matrix_appservice_kakaotalk/web/static/lib/normalize-8.0.1.min.css
new file mode 100644
index 0000000..b52daa7
--- /dev/null
+++ b/matrix_appservice_kakaotalk/web/static/lib/normalize-8.0.1.min.css
@@ -0,0 +1,2 @@
+/*! normalize.css v8.0.1 | MIT License | github.com/necolas/normalize.css */
+html{line-height:1.15;-webkit-text-size-adjust:100%}body{margin:0}main{display:block}h1{font-size:2em;margin:.67em 0}hr{box-sizing:content-box;height:0;overflow:visible}pre{font-family:monospace,monospace;font-size:1em}a{background-color:transparent}abbr[title]{border-bottom:none;text-decoration:underline;text-decoration:underline dotted}b,strong{font-weight:bolder}code,kbd,samp{font-family:monospace,monospace;font-size:1em}small{font-size:80%}sub,sup{font-size:75%;line-height:0;position:relative;vertical-align:baseline}sub{bottom:-.25em}sup{top:-.5em}img{border-style:none}button,input,optgroup,select,textarea{font-family:inherit;font-size:100%;line-height:1.15;margin:0}button,input{overflow:visible}button,select{text-transform:none}[type=button],[type=reset],[type=submit],button{-webkit-appearance:button}[type=button]::-moz-focus-inner,[type=reset]::-moz-focus-inner,[type=submit]::-moz-focus-inner,button::-moz-focus-inner{border-style:none;padding:0}[type=button]:-moz-focusring,[type=reset]:-moz-focusring,[type=submit]:-moz-focusring,button:-moz-focusring{outline:1px dotted ButtonText}fieldset{padding:.35em .75em .625em}legend{box-sizing:border-box;color:inherit;display:table;max-width:100%;padding:0;white-space:normal}progress{vertical-align:baseline}textarea{overflow:auto}[type=checkbox],[type=radio]{box-sizing:border-box;padding:0}[type=number]::-webkit-inner-spin-button,[type=number]::-webkit-outer-spin-button{height:auto}[type=search]{-webkit-appearance:textfield;outline-offset:-2px}[type=search]::-webkit-search-decoration{-webkit-appearance:none}::-webkit-file-upload-button{-webkit-appearance:button;font:inherit}details{display:block}summary{display:list-item}template{display:none}[hidden]{display:none}
diff --git a/matrix_appservice_kakaotalk/web/static/lib/preact-10.5.12.min.js b/matrix_appservice_kakaotalk/web/static/lib/preact-10.5.12.min.js
new file mode 100644
index 0000000..b4ff741
--- /dev/null
+++ b/matrix_appservice_kakaotalk/web/static/lib/preact-10.5.12.min.js
@@ -0,0 +1 @@
+var n,l,u,i,t,r,o={},f=[],e=/acit|ex(?:s|g|n|p|$)|rph|grid|ows|mnc|ntw|ine[ch]|zoo|^ord|itera/i;function c(e,n){for(var t in n)e[t]=n[t];return e}function s(e){var n=e.parentNode;n&&n.removeChild(e)}function a(e,n,t){var _,l,o,r=arguments,u={};for(o in n)"key"==o?_=n[o]:"ref"==o?l=n[o]:u[o]=n[o];if(arguments.length>3)for(t=[t],o=3;o0?v(m.type,m.props,m.key,null,m.__v):m)){if(m.__=t,m.__b=t.__b+1,null===(h=P[p])||h&&m.key==h.key&&m.type===h.type)P[p]=void 0;else for(a=0;a3)for(t=[t],o=3;o>8&255,rng_pool[rng_pptr++]^=t>>16&255,rng_pool[rng_pptr++]^=t>>24&255,rng_pptr>=rng_psize&&(rng_pptr-=rng_psize)}function rng_seed_time(){rng_seed_int((new Date).getTime())}if(null==rng_pool){var t;if(rng_pool=new Array,rng_pptr=0,window.crypto&&window.crypto.getRandomValues){var ua=new Uint8Array(32);for(window.crypto.getRandomValues(ua),t=0;t<32;++t)rng_pool[rng_pptr++]=ua[t]}if("Netscape"==navigator.appName&&navigator.appVersion<"5"&&window.crypto){var z=window.crypto.random(32);for(t=0;t>>8,rng_pool[rng_pptr++]=255&t;rng_pptr=0,rng_seed_time()}function rng_get_byte(){if(null==rng_state){for(rng_seed_time(),(rng_state=prng_newstate()).init(rng_pool),rng_pptr=0;rng_pptr=0&&t>0;)e[--t]=n[r--];e[--t]=0;for(var l=new SecureRandom,i=new Array;t>2;){for(i[0]=0;0==i[0];)l.nextBytes(i);e[--t]=i[0]}return e[--t]=2,e[--t]=0,new BigInteger(e)}function RSAKey(){this.n=null,this.e=0,this.d=null,this.p=null,this.q=null,this.dmp1=null,this.dmq1=null,this.coeff=null}function RSASetPublic(n,t){null!=n&&null!=t&&n.length>0&&t.length>0?(this.n=parseBigInt(n,16),this.e=parseInt(t,16)):alert("Invalid RSA public key")}function RSADoPublic(n){return n.modPowInt(this.e,this.n)}function RSAEncrypt(n){var t=pkcs1pad2(n,this.n.bitLength()+7>>3);if(null==t)return null;var e=this.doPublic(t);if(null==e)return null;var r=e.toString(16);return 0==(1&r.length)?r:"0"+r}RSAKey.prototype.doPublic=RSADoPublic,RSAKey.prototype.setPublic=RSASetPublic,RSAKey.prototype.encrypt=RSAEncrypt;
+
+export default RSAKey
diff --git a/matrix_appservice_kakaotalk/web/static/lib/spinner.css b/matrix_appservice_kakaotalk/web/static/lib/spinner.css
new file mode 100644
index 0000000..ca0e335
--- /dev/null
+++ b/matrix_appservice_kakaotalk/web/static/lib/spinner.css
@@ -0,0 +1,80 @@
+.loader {
+  color: #9b4dca;
+  font-size: 90px;
+  text-indent: -9999em;
+  overflow: hidden;
+  width: 1em;
+  height: 1em;
+  border-radius: 50%;
+  margin: 72px auto;
+  position: relative;
+  -webkit-transform: translateZ(0);
+  -ms-transform: translateZ(0);
+  transform: translateZ(0);
+  -webkit-animation: load6 1.7s infinite ease, round 1.7s infinite ease;
+  animation: load6 1.7s infinite ease, round 1.7s infinite ease;
+}
+@-webkit-keyframes load6 {
+  0% {
+    box-shadow: 0 -0.83em 0 -0.4em, 0 -0.83em 0 -0.42em, 0 -0.83em 0 -0.44em, 0 -0.83em 0 -0.46em, 0 -0.83em 0 -0.477em;
+  }
+  5%,
+  95% {
+    box-shadow: 0 -0.83em 0 -0.4em, 0 -0.83em 0 -0.42em, 0 -0.83em 0 -0.44em, 0 -0.83em 0 -0.46em, 0 -0.83em 0 -0.477em;
+  }
+  10%,
+  59% {
+    box-shadow: 0 -0.83em 0 -0.4em, -0.087em -0.825em 0 -0.42em, -0.173em -0.812em 0 -0.44em, -0.256em -0.789em 0 -0.46em, -0.297em -0.775em 0 -0.477em;
+  }
+  20% {
+    box-shadow: 0 -0.83em 0 -0.4em, -0.338em -0.758em 0 -0.42em, -0.555em -0.617em 0 -0.44em, -0.671em -0.488em 0 -0.46em, -0.749em -0.34em 0 -0.477em;
+  }
+  38% {
+    box-shadow: 0 -0.83em 0 -0.4em, -0.377em -0.74em 0 -0.42em, -0.645em -0.522em 0 -0.44em, -0.775em -0.297em 0 -0.46em, -0.82em -0.09em 0 -0.477em;
+  }
+  100% {
+    box-shadow: 0 -0.83em 0 -0.4em, 0 -0.83em 0 -0.42em, 0 -0.83em 0 -0.44em, 0 -0.83em 0 -0.46em, 0 -0.83em 0 -0.477em;
+  }
+}
+@keyframes load6 {
+  0% {
+    box-shadow: 0 -0.83em 0 -0.4em, 0 -0.83em 0 -0.42em, 0 -0.83em 0 -0.44em, 0 -0.83em 0 -0.46em, 0 -0.83em 0 -0.477em;
+  }
+  5%,
+  95% {
+    box-shadow: 0 -0.83em 0 -0.4em, 0 -0.83em 0 -0.42em, 0 -0.83em 0 -0.44em, 0 -0.83em 0 -0.46em, 0 -0.83em 0 -0.477em;
+  }
+  10%,
+  59% {
+    box-shadow: 0 -0.83em 0 -0.4em, -0.087em -0.825em 0 -0.42em, -0.173em -0.812em 0 -0.44em, -0.256em -0.789em 0 -0.46em, -0.297em -0.775em 0 -0.477em;
+  }
+  20% {
+    box-shadow: 0 -0.83em 0 -0.4em, -0.338em -0.758em 0 -0.42em, -0.555em -0.617em 0 -0.44em, -0.671em -0.488em 0 -0.46em, -0.749em -0.34em 0 -0.477em;
+  }
+  38% {
+    box-shadow: 0 -0.83em 0 -0.4em, -0.377em -0.74em 0 -0.42em, -0.645em -0.522em 0 -0.44em, -0.775em -0.297em 0 -0.46em, -0.82em -0.09em 0 -0.477em;
+  }
+  100% {
+    box-shadow: 0 -0.83em 0 -0.4em, 0 -0.83em 0 -0.42em, 0 -0.83em 0 -0.44em, 0 -0.83em 0 -0.46em, 0 -0.83em 0 -0.477em;
+  }
+}
+@-webkit-keyframes round {
+  0% {
+    -webkit-transform: rotate(0deg);
+    transform: rotate(0deg);
+  }
+  100% {
+    -webkit-transform: rotate(360deg);
+    transform: rotate(360deg);
+  }
+}
+@keyframes round {
+  0% {
+    -webkit-transform: rotate(0deg);
+    transform: rotate(0deg);
+  }
+  100% {
+    -webkit-transform: rotate(360deg);
+    transform: rotate(360deg);
+  }
+}
diff --git a/matrix_appservice_kakaotalk/web/static/login.html b/matrix_appservice_kakaotalk/web/static/login.html
new file mode 100644
index 0000000..0a9b902
--- /dev/null
+++ b/matrix_appservice_kakaotalk/web/static/login.html
@@ -0,0 +1,44 @@
+
+
+
+
+	
+	
+	matrix-appservice-kakaotalk login
+
+	
+	
+	
+	
+	
+	
+	
+	
+
+	
+	
+	
+	
+	
+	
+
+
+	
+
+
diff --git a/matrix_appservice_kakaotalk/web/static/login/api.js b/matrix_appservice_kakaotalk/web/static/login/api.js
new file mode 100644
index 0000000..ee9ad19
--- /dev/null
+++ b/matrix_appservice_kakaotalk/web/static/login/api.js
@@ -0,0 +1,62 @@
+// matrix-appservice-kakaotalk - A Matrix-KakaoTalk puppeting bridge.
+// Copyright (C) 2021 Tulir Asokan
+//
+// 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 .
+import encryptPassword from "./crypto.js"
+
+const apiToken = location.hash.slice(1)
+const headers = { Authorization: `Bearer ${apiToken}` }
+const jsonHeaders = { ...headers, "Content-Type": "application/json" }
+const fetchParams = { headers }
+
+export async function whoami() {
+	const resp = await fetch("api/whoami", fetchParams)
+	return await resp.json()
+}
+
+export async function prepareLogin() {
+	const resp = await fetch("api/login/prepare", { ...fetchParams, method: "POST" })
+	return await resp.json()
+}
+
+export async function login(pubkey, keyID, email, password) {
+	const resp = await fetch("api/login", {
+		method: "POST",
+		body: JSON.stringify({
+			email,
+			encrypted_password: await encryptPassword(pubkey, keyID, password),
+		}),
+		headers: jsonHeaders,
+	})
+	return await resp.json()
+}
+
+export async function login2FA(email, code) {
+	const resp = await fetch("api/login/2fa", {
+		method: "POST",
+		body: JSON.stringify({ email, code }),
+		headers: jsonHeaders,
+	})
+	return await resp.json()
+}
+
+export async function loginApproved() {
+	const resp = await fetch("api/login/approved", { method: "POST", headers })
+	return await resp.json()
+}
+
+export async function wasLoginApproved() {
+	const resp = await fetch("api/login/check_approved", fetchParams)
+	return (await resp.json()).approved
+}
diff --git a/matrix_appservice_kakaotalk/web/static/login/app.js b/matrix_appservice_kakaotalk/web/static/login/app.js
new file mode 100644
index 0000000..69afb55
--- /dev/null
+++ b/matrix_appservice_kakaotalk/web/static/login/app.js
@@ -0,0 +1,200 @@
+// matrix-appservice-kakaotalk - A Matrix-KakaoTalk puppeting bridge.
+// Copyright (C) 2021 Tulir Asokan
+//
+// 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 .
+import { h, Component, render } from "../lib/preact-10.5.12.min.js"
+import htm from "../lib/htm-3.0.4.min.js"
+import * as api from "./api.js"
+
+const html = htm.bind(h)
+
+class App extends Component {
+	constructor(props) {
+		super(props)
+		this.approveCheckInterval = null
+		this.state = {
+			loading: true,
+			submitting: false,
+			error: null,
+			mxid: null,
+			facebook: null,
+			status: "pre-login",
+			pubkey: null,
+			keyID: null,
+			email: "",
+			password: "",
+			twoFactorCode: "",
+			twoFactorInfo: {},
+		}
+	}
+
+	async componentDidMount() {
+		const { error, mxid, facebook } = await api.whoami()
+		if (error) {
+			this.setState({ error, loading: false })
+		} else {
+			this.setState({ mxid, facebook, loading: false })
+		}
+	}
+
+	checkLoginApproved = async () => {
+		if (!await api.wasLoginApproved()) {
+			return
+		}
+		clearInterval(this.approveCheckInterval)
+		this.approveCheckInterval = null
+		const resp = await api.loginApproved()
+		if (resp.status === "logged-in") {
+			this.setState({ status: resp.status })
+		}
+	}
+
+	submitNoDefault = evt => {
+		evt.preventDefault()
+		this.submit()
+	}
+
+	async submit() {
+		if (this.approveCheckInterval) {
+			clearInterval(this.approveCheckInterval)
+			this.approveCheckInterval = null
+		}
+		this.setState({ submitting: true })
+		let resp
+		switch (this.state.status) {
+		case "pre-login":
+			resp = await api.prepareLogin()
+			break
+		case "login":
+			resp = await api.login(this.state.pubkey, this.state.keyID,
+				this.state.email, this.state.password)
+			break
+		case "two-factor":
+			resp = await api.login2FA(this.state.email, this.state.twoFactorCode)
+			break
+		}
+		const stateUpdate = { submitting: false }
+		if (typeof resp.error === "string") {
+			stateUpdate.error = resp.error
+		} else {
+			stateUpdate.status = resp.status
+		}
+		if (resp.password_encryption_key_id) {
+			stateUpdate.pubkey = resp.password_encryption_pubkey
+			stateUpdate.keyID = resp.password_encryption_key_id
+		}
+		if (resp.status === "two-factor") {
+			this.approveCheckInterval = setInterval(this.checkLoginApproved, 5000)
+			stateUpdate.twoFactorInfo = resp.error
+		} else if (resp.status === "logged-in") {
+			api.whoami().then(({ facebook }) => this.setState({ facebook }))
+		}
+		this.setState(stateUpdate)
+	}
+
+	fieldChange = evt => {
+		this.setState({ [evt.target.id]: evt.target.value })
+	}
+
+	renderFields() {
+		switch (this.state.status) {
+		case "pre-login":
+			return null
+		case "login":
+			return html`
+				
+				
+				
+				
+			`
+		case "two-factor":
+			return html`
+				
${this.state.twoFactorInfo.error_user_msg}

+				
+				
+				
+				
+			`
+		}
+	}
+
+	submitButtonText() {
+		switch (this.state.status) {
+		case "pre-login":
+			return "Start"
+		case "login":
+		case "two-factor":
+			return "Sign in"
+		}
+	}
+
+	renderContent() {
+		if (this.state.loading) {
+			return html`
+				
Loading...

+			`
+		} else if (this.state.status === "logged-in") {
+			if (this.state.facebook) {
+				return html`
+					Successfully logged in as ${this.state.facebook.name}. The bridge will appear
+					as ${this.state.facebook.device_displayname} in Facebook security settings.
+				`
+			}
+			return html`
+				Successfully logged in
+			`
+		} else if (this.state.facebook) {
+			return html`
+				You're already logged in as ${this.state.facebook.name}. The bridge appears
+				as ${this.state.facebook.device_displayname} in Facebook security settings.
+			`
+		}
+		return html`
+			${this.state.error && html`
+				
${this.state.error}

+			`}
+			

+				

+					
+					
+					${this.renderFields()}
+					
+				

+			

+		`
+	}
+
+	render() {
+		return html`
+			

+				
matrix-appservice-kakaotalk login

+				${this.renderContent()}
+			

+		`
+	}
+}
+
+
+render(html`
+	<${App}/>
+`, document.body)
diff --git a/matrix_appservice_kakaotalk/web/static/login/crypto.js b/matrix_appservice_kakaotalk/web/static/login/crypto.js
new file mode 100644
index 0000000..6b0262d
--- /dev/null
+++ b/matrix_appservice_kakaotalk/web/static/login/crypto.js
@@ -0,0 +1,112 @@
+// matrix-appservice-kakaotalk - A Matrix-KakaoTalk puppeting bridge.
+// Copyright (C) 2021 Tulir Asokan
+//
+// 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 .
+
+// We have to use this pure-js RSA implementation because SubtleCrypto dropped PKCS#1 v1.5 support.
+import RSAKey from "../lib/rsa.min.js"
+import ASN1HEX from "../lib/asn1hex-1.1.min.js"
+
+function pemToHex(pem) {
+	// Strip pem header
+	pem = pem.replace("-----BEGIN PUBLIC KEY-----", "")
+	pem = pem.replace("-----END PUBLIC KEY-----", "")
+
+	// Convert base64 to hex
+	const raw = atob(pem)
+	let result = ""
+	for (let i = 0; i < raw.length; i++) {
+		const hex = raw.charCodeAt(i).toString(16)
+		result += (hex.length === 2 ? hex : "0" + hex)
+	}
+	return result.toLowerCase()
+}
+
+function getKey(pem) {
+	const keyHex = pemToHex(pem)
+	if (ASN1HEX.isASN1HEX(keyHex) === false) {
+		throw new Error("key is not ASN.1 hex string")
+	} else if (ASN1HEX.getVbyList(keyHex, 0, [0, 0], "06") !== "2a864886f70d010101") {
+		throw new Error("not PKCS8 RSA key")
+	} else if (ASN1HEX.getTLVbyListEx(keyHex, 0, [0, 0]) !== "06092a864886f70d010101") {
+		throw new Error("not PKCS8 RSA public key")
+	}
+
+	const p5hex = ASN1HEX.getTLVbyListEx(keyHex, 0, [1, 0])
+	if (ASN1HEX.isASN1HEX(p5hex) === false) {
+		throw new Error("keyHex is not ASN.1 hex string")
+	}
+
+	const aIdx = ASN1HEX.getChildIdx(p5hex, 0)
+	if (aIdx.length !== 2 || p5hex.substr(aIdx[0], 2) !== "02" || p5hex.substr(aIdx[1], 2) !== "02") {
+		throw new Error("wrong hex for PKCS#5 public key")
+	}
+
+	const hN = ASN1HEX.getV(p5hex, aIdx[0])
+	const hE = ASN1HEX.getV(p5hex, aIdx[1])
+	const key = new RSAKey()
+	key.setPublic(hN, hE)
+	return key
+}
+
+// encryptPassword encrypts a login password using AES-256-GCM, then encrypts the AES key
+// for Facebook's RSA-2048 key using PKCS#1 v1.5 padding.
+//
+// See https://github.com/mautrix/facebook/blob/v0.3.0/maufbapi/http/login.py#L164-L192
+// for the Python implementation of the same encryption protocol.
+async function encryptPassword(pubkey, keyID, password) {
+	// Key and IV for AES encryption
+	const aesKey = await crypto.subtle.generateKey({
+		name: "AES-GCM",
+		length: 256,
+	}, true, ["encrypt", "decrypt"])
+	const aesIV = crypto.getRandomValues(new Uint8Array(12))
+	// Get the actual bytes of the AES key
+	const aesKeyBytes = await crypto.subtle.exportKey("raw", aesKey)
+
+	// Encrypt AES key with Facebook's RSA public key.
+	const rsaKey = getKey(pubkey)
+	const encryptedAESKeyHex = rsaKey.encrypt(new Uint8Array(aesKeyBytes))
+	const encryptedAESKey = new Uint8Array(encryptedAESKeyHex.match(/[0-9A-Fa-f]{2}/g).map(h => parseInt(h, 16)))
+
+	const encoder = new TextEncoder()
+	const time = Math.floor(Date.now() / 1000)
+	// Encrypt the password. The result includes the ciphertext and AES MAC auth tag.
+	const encryptedPasswordBuffer = await crypto.subtle.encrypt({
+		name: "AES-GCM",
+		iv: aesIV,
+		// Add the current time to the additional authenticated data (AAD) section
+		additionalData: encoder.encode(time.toString()),
+		tagLength: 128,
+	}, aesKey, encoder.encode(password))
+	// SubtleCrypto returns the auth tag and ciphertext in the wrong order,
+	// so we have to flip them around.
+	const authTag = new Uint8Array(encryptedPasswordBuffer.slice(-16))
+	const encryptedPassword = new Uint8Array(encryptedPasswordBuffer.slice(0, -16))
+
+	const payload = new Uint8Array(2 + aesIV.byteLength + 2 + encryptedAESKey.byteLength + authTag.byteLength + encryptedPassword.byteLength)
+	// 1 is presumably the version
+	payload[0] = 1
+	payload[1] = keyID
+	payload.set(aesIV, 2)
+	// Length of the encrypted AES key as a little-endian 16-bit int
+	payload[aesIV.byteLength + 2] = encryptedAESKey.byteLength & (1 << 8)
+	payload[aesIV.byteLength + 3] = encryptedAESKey.byteLength >> 8
+	payload.set(encryptedAESKey, 4 + aesIV.byteLength)
+	payload.set(authTag, 4 + aesIV.byteLength + encryptedAESKey.byteLength)
+	payload.set(encryptedPassword, 4 + aesIV.byteLength + encryptedAESKey.byteLength + authTag.byteLength)
+	return `#PWD_MSGR:1:${time}:${btoa(String.fromCharCode(...payload))}`
+}
+
+export default encryptPassword
diff --git a/matrix_appservice_kakaotalk/web/static/login/index.css b/matrix_appservice_kakaotalk/web/static/login/index.css
new file mode 100644
index 0000000..efef17d
--- /dev/null
+++ b/matrix_appservice_kakaotalk/web/static/login/index.css
@@ -0,0 +1,10 @@
+.error {
+	background-color: darkred !important;
+	border-color: darkred !important;
+	opacity: 1 !important;
+}
+
+main {
+	max-width: 50rem;
+	margin: 2rem auto 0;
+}
diff --git a/node/.gitignore b/node/.gitignore
new file mode 100644
index 0000000..387d417
--- /dev/null
+++ b/node/.gitignore
@@ -0,0 +1,3 @@
+/node_modules
+/config*.json
+/*.sock
diff --git a/node/example-config.json b/node/example-config.json
new file mode 100644
index 0000000..e81822c
--- /dev/null
+++ b/node/example-config.json
@@ -0,0 +1,6 @@
+{
+	"listen": {
+		"type": "unix",
+		"path": "/var/run/matrix-appservice-kakaotalk/rpc.sock"
+	}
+}
diff --git a/node/package-lock.json b/node/package-lock.json
new file mode 100644
index 0000000..d417e28
--- /dev/null
+++ b/node/package-lock.json
@@ -0,0 +1,4411 @@
+{
+  "name": "matrix-appservice-kakaotalk-node",
+  "version": "0.0.1",
+  "lockfileVersion": 2,
+  "requires": true,
+  "packages": {
+    "": {
+      "name": "matrix-appservice-kakaotalk-node",
+      "version": "0.0.1",
+      "license": "AGPL-3.0-or-later",
+      "dependencies": {
+        "arg": "^4.1.3",
+        "node-kakao": "4.5.0",
+        "systemd-daemon": "^1.1.2"
+      },
+      "devDependencies": {
+        "@types/node": "^17.0.12",
+        "babel-eslint": "^10.1.0",
+        "eslint": "^7.7.0",
+        "eslint-plugin-import": "^2.22.0"
+      },
+      "engines": {
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+      }
+    },
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+      "dev": true,
+      "dependencies": {
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+      },
+      "engines": {
+        "node": ">=6.9.0"
+      }
+    },
+    "node_modules/@babel/generator": {
+      "version": "7.16.8",
+      "resolved": "https://registry.npmjs.org/@babel/generator/-/generator-7.16.8.tgz",
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+      },
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diff --git a/node/package.json b/node/package.json
new file mode 100644
index 0000000..fb0b8e0
--- /dev/null
+++ b/node/package.json
@@ -0,0 +1,31 @@
+{
+  "name": "matrix-appservice-kakaotalk-node",
+  "version": "0.0.1",
+  "description": "Node backend for matrix-appservice-kakaotalk",
+  "repository": {
+    "type": "git",
+    "url": "git+https://src.miscworks.net/fair/matrix-appservice-kakaotalk.git"
+  },
+  "engines": {
+    "node": ">=16.13.0"
+  },
+  "type": "module",
+  "main": "src/main.js",
+  "author": "Andrew Ferrazzutti ",
+  "license": "AGPL-3.0-or-later",
+  "homepage": "https://src.miscworks.net/fair/matrix-appservice-kakaotalk",
+  "scripts": {
+    "start": "node ./src/main.js"
+  },
+  "dependencies": {
+    "arg": "^4.1.3",
+    "node-kakao": "4.5.0",
+    "systemd-daemon": "^1.1.2"
+  },
+  "devDependencies": {
+    "@types/node": "^17.0.12",
+    "babel-eslint": "^10.1.0",
+    "eslint": "^7.7.0",
+    "eslint-plugin-import": "^2.22.0"
+  }
+}
diff --git a/node/src/client.js b/node/src/client.js
new file mode 100644
index 0000000..509ea1e
--- /dev/null
+++ b/node/src/client.js
@@ -0,0 +1,460 @@
+// 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 .
+import { Long } from "bson"
+import { emitLines, promisify } from "./util.js"
+import {
+	AuthApiClient,
+	OAuthApiClient,
+	ServiceApiClient,
+	TalkClient,
+	KnownAuthStatusCode,
+	util,
+} from "node-kakao"
+/** @typedef {import("node-kakao").OAuthCredential} OAuthCredential */
+/** @typedef {import("./clientmanager.js").default} ClientManager} */
+
+
+class UserClient {
+
+	#talkClient = new TalkClient()
+	get talkClient() { return this.#talkClient }
+
+	/** @type {ServiceApiClient} */
+	#serviceClient = null
+	get serviceClient() { return this.#serviceClient }
+
+	/**
+	 * @param {string} mxid The ID of the associated Matrix user
+	 * @param {OAuthCredential} credential The tokens that API calls may use
+	 */
+	constructor(mxid, credential) {
+		this.mxid = mxid
+		this.credential = credential
+	}
+
+	static async create(mxid, credential) {
+		const userClient = new UserClient(mxid, credential)
+		userClient.#serviceClient = await ServiceApiClient.create(this.credential)
+		return userClient
+	}
+
+	close() {
+		this.#talkClient.close()
+	}
+
+	/**
+	 * TODO Maybe use a "write" method instead
+	 * @param {string} command
+	 */
+	getCmd(command) {
+		return `${command}:${this.mxid}`
+	}
+}
+
+export default class PeerClient {
+
+	/**
+	 * @param {ClientManager} manager
+	 * @param {import("net").Socket} socket
+	 * @param {number} connID
+	 * @param {Map} userClients
+	 */
+	constructor(manager, socket, connID) {
+		this.manager = manager
+		this.socket = socket
+		this.connID = connID
+		this.stopped = false
+		this.notificationID = 0
+		this.maxCommandID = 0
+		this.peerID = null
+
+		this.userClients = new Map()
+	}
+
+
+	log(...text) {
+		if (this.peerID) {
+			console.log(`[API/${this.peerID}/${this.connID}]`, ...text)
+		} else {
+			console.log(`[API/${this.connID}]`, ...text)
+		}
+	}
+
+	error(...text) {
+		if (this.peerID) {
+			console.error(`[API/${this.peerID}/${this.connID}]`, ...text)
+		} else {
+			console.error(`[API/${this.connID}]`, ...text)
+		}
+	}
+
+	start() {
+		this.log("Received connection", this.connID)
+		emitLines(this.socket)
+		this.socket.on("line", line => this.handleLine(line)
+			.catch(err => this.log("Error handling line:", err)))
+		this.socket.on("end", this.handleEnd)
+
+		setTimeout(() => {
+			if (!this.peerID && !this.stopped) {
+				this.log("Didn't receive register request within 3 seconds, terminating")
+				this.stop("Register request timeout")
+			}
+		}, 3000)
+	}
+
+	async stop(error = null) {
+		if (this.stopped) {
+			return
+		}
+		this.stopped = true
+		try {
+			await this.#write({ id: --this.notificationID, command: "quit", error })
+			await promisify(cb => this.socket.end(cb))
+		} catch (err) {
+			this.error("Failed to end connection:", err)
+			this.socket.destroy(err)
+		}
+	}
+
+	handleEnd = async () => {
+		// TODO Persist clients across bridge disconnections.
+		//      But then have to queue received events until bridge acks them!
+		this.log("Closing all API clients for", this.peerID)
+		for (const userClient of this.userClients.values()) {
+			userClient.close()
+		}
+		this.userClients.clear()
+
+		this.stopped = true
+		if (this.peerID && this.manager.clients.get(this.peerID) === this) {
+			this.manager.clients.delete(this.peerID)
+		}
+		this.log(`Connection closed (peer: ${this.peerID})`)
+	}
+
+	/**
+	 * Write JSON data to the socket.
+	 *
+	 * @param {object} data - The data to write.
+	 * @returns {Promise}
+	 */
+	#write(data) {
+		return promisify(cb => this.socket.write(JSON.stringify(data) + "\n", cb))
+	}
+
+
+	/**
+	 * @param {Object} req
+	 * @param {string} req.passcode
+	 * @param {string} req.uuid
+	 * @param {Object} req.form
+	 */
+	registerDevice = async (req) => {
+		const authClient = await this.#createAuthClient(req.uuid)
+		return await authClient.registerDevice(req.form, req.passcode, true)
+	}
+
+	/**
+	 * Log in. If this fails due to not having a device, also request a device passcode.
+	 * @param {Object} req
+	 * @param {string} req.uuid
+	 * @param {Object} req.form
+	 * @returns The response of the login attempt, including obtained
+	 * credentials for subsequent token-based login. If a required device passcode
+	 * request failed, its status is stored here.
+	 */
+	handleLogin = async (req) => {
+		const authClient = await this.#createAuthClient(req.uuid)
+		const loginRes = await authClient.login(req.form, true)
+		if (loginRes.status === KnownAuthStatusCode.DEVICE_NOT_REGISTERED) {
+			const passcodeRes = await authClient.requestPasscode(req.form)
+			if (!passcodeRes.success) {
+				loginRes.status = passcodeRes.status
+			}
+		}
+		return loginRes
+	}
+
+	// TODO Wrapper for per-user commands
+
+	/**
+	 * Checked lookup of a UserClient for a given mxid.
+	 * @param {string} mxid
+	 */
+	#getUser(mxid) {
+		/** @type {UserClient} */
+		const userClient = this.userClients.get(mxid)
+		if (userClient === undefined) {
+			throw new Error(`Could not find user ${mxid}`)
+		}
+		return userClient
+	}
+	
+	/**
+	 * @param {Object} req
+	 * @param {OAuthCredential} req.oauth_credential
+	 */
+	handleRenew = async (req) => {
+		const oAuthClient = await OAuthApiClient.create()
+		return await oAuthClient.renew(req.oauth_credential)
+	}
+
+	/**
+	 * TODO Consider caching per-user
+	 * @param {string} uuid
+	 */
+	async #createAuthClient(uuid) {
+		return await AuthApiClient.create("KakaoTalk Bridge", uuid)
+	}
+
+	/**
+	 * @param {Object} req
+	 * @param {string} req.mxid
+	 * @param {OAuthCredential} req.oauth_credential
+	 */
+	handleStart = async (req) => {
+		// TODO Don't re-login if possible. But must still return a LoginResult!
+		{
+			const oldUserClient = this.userClients.get(req.mxid)
+			if (oldUserClient !== undefined) {
+				oldUserClient.close()
+				this.userClients.delete(req.mxid)
+			}
+		}
+
+		const userClient = await UserClient.create(req.mxid, req.oauth_credential)
+		const res = await userClient.talkClient.login(req.oauth_credential)
+		if (!res.success) return res
+
+		// Attach listeners in something like start_listen
+		/*
+		userClient.talkClient.on("chat", (data, channel) => {
+			this.log(`Found message in channel ${channel.channelId}`)
+			return this.#write({
+				id: --this.notificationID,
+				command: userClient.getCmd("chat"),
+				//is_sequential: true, // TODO make sequential per user!
+				chatlog: data.chat(),
+				channelId: channel.channelId,
+			})
+		})
+
+		/*
+		userClient.talkClient.on("chat_read", (chat, channel, reader) => {
+			this.log(`chat_read in channel ${channel.channelId}`)
+			//chat.logId
+		})
+		*/
+
+		this.userClients.set(req.mxid, userClient)
+		return res
+	}
+
+	/**
+	 * @param {Object} req
+	 * @param {string} req.mxid
+	 * @param {OAuthCredential} req.oauth_credential
+	 */
+	getOwnProfile = async (req) => {
+		const serviceClient =
+			this.userClients.get(req.mxid)?.serviceClient ||
+			await ServiceApiClient.create(req.oauth_credential)
+		return await serviceClient.requestMyProfile()
+	}
+
+	/**
+	 * @param {Object} req
+	 * @param {string} req.mxid
+	 * @param {OAuthCredential} req.oauth_credential
+	 * @param {Long} req.user_id
+	 */
+	getProfile = async (req) => {
+		const serviceClient =
+			this.userClients.get(mxid)?.serviceClient ||
+			await ServiceApiClient.create(req.oauth_credential)
+		return await serviceClient.requestProfile(user_id)
+	}
+
+	/**
+	 * @param {Object} req
+	 * @param {string} req.mxid
+	 * @param {Long} req.channel_id
+	 */
+	getPortalChannelInfo = (req) => {
+		const userClient = this.#getUser(req.mxid)
+		const talkChannel = userClient.talkClient.channelList.get(req.channel_id)
+
+		/* TODO Decide if this is needed. If it is, make function async!
+		const res = await talkChannel.updateAll()
+		if (!res.success) return res
+		*/
+
+		return this.#makeCommandResult({
+			name: talkChannel.getDisplayName(),
+			//participants: Array.from(talkChannel.getAllUserInfo()),
+			// TODO Image
+		})
+	}
+
+	#makeCommandResult(result) {
+		return {
+			success: true,
+			status: 0,
+			result: result
+		}
+	}
+
+	/**
+	 * @param {Object} req
+	 * @param {string} req.mxid
+	 */
+	handleStop = async (req) => {
+		this.#getUser(req.mxid).close()
+	}
+
+	handleUnknownCommand = () => {
+		throw new Error("Unknown command")
+	}
+
+	/**
+	 * @param {Object} req
+	 * @param {string} req.peer_id
+	 */
+	handleRegister = async (req) => {
+		this.peerID = req.peer_id
+		this.log(`Registered socket ${this.connID} -> ${this.peerID}`)
+		if (this.manager.clients.has(this.peerID)) {
+			const oldClient = this.manager.clients.get(this.peerID)
+			this.log(`Terminating previous socket ${oldClient.connID} for ${this.peerID}`)
+			await oldClient.stop("Socket replaced by new connection")
+		}
+		this.manager.clients.set(this.peerID, this)
+		return { client_exists: this.authClient !== null }
+	}
+
+	async handleLine(line) {
+		if (this.stopped) {
+			this.log("Ignoring line, client is stopped")
+			return
+		}
+		let req
+		try {
+			req = JSON.parse(line)
+		} catch (err) {
+			this.log("Non-JSON request:", line)
+			return
+		}
+		if (!req.command || !req.id) {
+			this.log("Invalid request:", line)
+			return
+		}
+		if (req.id <= this.maxCommandID) {
+			this.log("Ignoring old request", req.id)
+			return
+		}
+		if (req.command != "is_connected") {
+			this.log("Received request", req.id, "with command", req.command)
+		}
+		this.maxCommandID = req.id
+		let handler
+		if (!this.peerID) {
+			if (req.command !== "register") {
+				this.log("First request wasn't a register request, terminating")
+				await this.stop("Invalid first request")
+				return
+			} else if (!req.peer_id) {
+				this.log("Register request didn't contain ID, terminating")
+				await this.stop("Invalid register request")
+				return
+			}
+			handler = this.handleRegister
+		} else {
+			handler = {
+				// TODO Subclass / object for KakaoTalk-specific handlers?
+				start: this.handleStart,
+				stop: this.handleStop,
+				disconnect: () => this.stop(),
+				login: this.handleLogin,
+				renew: this.handleRenew,
+				generate_uuid: util.randomAndroidSubDeviceUUID,
+				register_device: this.registerDevice,
+				get_own_profile: this.getOwnProfile,
+				get_portal_channel_info: this.getPortalChannelInfo,
+				get_profile: this.getProfile,
+				/*
+				send: req => this.puppet.sendMessage(req.chat_id, req.text),
+				send_file: req => this.puppet.sendFile(req.chat_id, req.file_path),
+				set_last_message_ids: req => this.puppet.setLastMessageIDs(req.msg_ids, req.own_msg_ids, req.rct_ids),
+				forget_chat: req => this.puppet.forgetChat(req.chat_id),
+				pause: () => this.puppet.stopObserving(),
+				resume: () => this.puppet.startObserving(),
+				get_contacts: () => this.puppet.getContacts(),
+				get_chats: () => this.puppet.getRecentChats(),
+				get_chat: req => this.puppet.getChatInfo(req.chat_id, req.force_view),
+				get_messages: req => this.puppet.getMessages(req.chat_id),
+				read_image: req => this.puppet.readImage(req.image_url),
+				*/
+				//is_connected: async () => ({ is_connected: !await this.puppet.isDisconnected() }),
+			}[req.command] || this.handleUnknownCommand
+		}
+		const resp = { id: req.id }
+		delete req.id
+		delete req.command
+		req = typeify(req)
+		resp.command = "response"
+		try {
+			resp.response = await handler(req)
+		} catch (err) {
+			if (err.isAxiosError) {
+				resp.response = {
+					success: false,
+					status: err.response.status,
+				}
+			} else {
+				resp.command = "error"
+				resp.error = err.toString()
+				this.log(`Error handling request ${resp.id} ${err}`)
+			}
+		}
+		await this.#write(resp)
+	}
+}
+
+/**
+ * Recursively scan an object to check if any of its sub-objects
+ * should be converted into instances of a specified class.
+ * @param obj The object to be scanned & updated.
+ * @returns The converted object.
+ */
+function typeify(obj) {
+	if (!(obj instanceof Object)) {
+		return obj
+	}
+	const converterFunc = TYPE_MAP.get(obj.__type__)
+	if (converterFunc !== undefined) {
+		return converterFunc(obj)
+	}
+	for (const key in obj) {
+		obj[key] = typeify(obj[key])
+	}
+	return obj
+}
+
+// TODO Add more if needed
+const TYPE_MAP = new Map([
+	["Long", (obj) => new Long(obj.low, obj.high, obj.unsigned)],
+])
diff --git a/node/src/clientmanager.js b/node/src/clientmanager.js
new file mode 100644
index 0000000..c993d26
--- /dev/null
+++ b/node/src/clientmanager.js
@@ -0,0 +1,94 @@
+// 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 .
+import net from "net"
+import fs from "fs"
+import path from "path"
+
+import PeerClient from "./client.js"
+import { promisify } from "./util.js"
+
+export default class ClientManager {
+	constructor(listenConfig) {
+		this.listenConfig = listenConfig
+		this.server = net.createServer(this.acceptConnection)
+		this.connections = []
+		this.clients = new Map()
+		this.connIDSequence = 0
+		this.stopped = false
+	}
+
+	log(...text) {
+		console.log("[API]", ...text)
+	}
+
+	acceptConnection = sock => {
+		if (this.stopped) {
+			sock.end()
+			sock.destroy()
+		} else {
+			const connID = this.connIDSequence++
+			this.connections[connID] = sock
+			new PeerClient(this, sock, connID).start()
+		}
+	}
+
+	async startUnix(socketPath) {
+		try {
+			await fs.promises.access(path.dirname(socketPath))
+		} catch (err) {
+			await fs.promises.mkdir(path.dirname(socketPath), 0o700)
+		}
+		try {
+			await fs.promises.unlink(socketPath)
+		} catch (err) {}
+		await promisify(cb => this.server.listen(socketPath, cb))
+		await fs.promises.chmod(socketPath, 0o700)
+		this.log("Now listening at", socketPath)
+	}
+
+	async startTCP(port, host) {
+		await promisify(cb => this.server.listen(port, host, cb))
+		this.log(`Now listening at ${host || ""}:${port}`)
+	}
+
+	async start() {
+		this.log("Starting server")
+
+		if (this.listenConfig.type === "unix") {
+			await this.startUnix(this.listenConfig.path)
+		} else if (this.listenConfig.type === "tcp") {
+			await this.startTCP(this.listenConfig.port, this.listenConfig.host)
+		}
+	}
+
+	async stop() {
+		this.stopped = true
+		for (const client of this.clients.values()) {
+			await client.stop("Server is shutting down")
+		}
+		for (const socket of this.connections) {
+			socket.end()
+			socket.destroy()
+		}
+		this.log("Stopping server")
+		await promisify(cb => this.server.close(cb))
+		if (this.listenConfig.type === "unix") {
+			try {
+				await fs.promises.unlink(this.listenConfig.path)
+			} catch (err) {}
+		}
+	}
+}
diff --git a/node/src/main.js b/node/src/main.js
new file mode 100644
index 0000000..6fcc49a
--- /dev/null
+++ b/node/src/main.js
@@ -0,0 +1,53 @@
+// 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 .
+import process from "process"
+import fs from "fs"
+import sd from "systemd-daemon"
+
+import arg from "arg"
+
+import ClientManager from "./clientmanager.js"
+
+const args = arg({
+	"--config": String,
+	"-c": "--config",
+})
+
+const configPath = args["--config"] || "config.json"
+
+console.log("[Main] Reading config from", configPath)
+const config = JSON.parse(fs.readFileSync(configPath).toString())
+
+const api = new ClientManager(config.listen)
+
+function stop() {
+	api.stop().then(() => {
+		console.log("[Main] Everything stopped")
+		process.exit(0)
+	}, err => {
+		console.error("[Main] Error stopping:", err)
+		process.exit(3)
+	})
+}
+
+api.start().then(() => {
+	process.once("SIGINT", stop)
+	process.once("SIGTERM", stop)
+	sd.notify("READY=1")
+}, err => {
+	console.error("[Main] Error starting:", err)
+	process.exit(2)
+})
diff --git a/node/src/taskqueue.js b/node/src/taskqueue.js
new file mode 100644
index 0000000..69ff1fa
--- /dev/null
+++ b/node/src/taskqueue.js
@@ -0,0 +1,97 @@
+// 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 .
+
+export default class TaskQueue {
+	constructor(id) {
+		this.id = id
+		this._tasks = []
+		this.running = false
+		this._wakeup = null
+	}
+
+	log(...text) {
+		console.log(`[TaskQueue/${this.id}]`, ...text)
+	}
+
+	error(...text) {
+		console.error(`[TaskQueue/${this.id}]`, ...text)
+	}
+
+	async _run() {
+		this.log("Started processing tasks")
+		while (this.running) {
+			if (this._tasks.length === 0) {
+				this.log("Sleeping until a new task is received")
+				await new Promise(resolve => this._wakeup = () => {
+					resolve()
+					this._wakeup = null
+				})
+				if (!this.running) {
+					break
+				}
+				this.log("Continuing processing tasks")
+			}
+			const { task, resolve, reject } = this._tasks.shift()
+			await task().then(resolve, reject)
+		}
+		this.log("Stopped processing tasks")
+	}
+
+	/**
+	 * @callback Task
+	 * @return {Promise}
+	 */
+
+	/**
+	 * Push a task to the queue.
+	 *
+	 * @param {Task} task - The task to run
+	 * @return {Promise} - A promise that resolves to the return value of the task
+	 */
+	push(task) {
+		if (!this.running) {
+			throw Error("task queue is not running")
+		}
+		if (this._wakeup !== null) {
+			this._wakeup()
+		}
+		return new Promise((resolve, reject) => this._tasks.push({ task, resolve, reject }))
+	}
+
+	/**
+	 * Start handling tasks
+	 */
+	start() {
+		if (this.running) {
+			return
+		}
+		this.running = true
+		this._run().catch(err => this.error("Fatal error processing tasks:", err))
+	}
+
+	/**
+	 * Stop handling tasks.
+	 */
+	stop() {
+		if (!this.running) {
+			return
+		}
+		this.running = false
+		if (this._wakeup !== null) {
+			this._wakeup()
+		}
+	}
+}
diff --git a/node/src/util.js b/node/src/util.js
new file mode 100644
index 0000000..be301ad
--- /dev/null
+++ b/node/src/util.js
@@ -0,0 +1,43 @@
+// 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 .
+
+export function promisify(func) {
+	return new Promise((resolve, reject) => {
+		try {
+			func(err => err ? reject(err) : resolve())
+		} catch (err) {
+			reject(err)
+		}
+	})
+}
+
+export function sleep(timeout) {
+	return new Promise(resolve => setTimeout(resolve, timeout))
+}
+
+export function emitLines(stream) {
+	let buffer = ""
+	stream.on("data", data => {
+		buffer += data
+		let n = buffer.indexOf("\n")
+		while (~n) {
+			stream.emit("line", buffer.substring(0, n))
+			buffer = buffer.substring(n + 1)
+			n = buffer.indexOf("\n")
+		}
+	})
+	stream.on("end", () => buffer && stream.emit("line", buffer))
+}
diff --git a/optional-requirements.txt b/optional-requirements.txt
new file mode 100644
index 0000000..8c73218
--- /dev/null
+++ b/optional-requirements.txt
@@ -0,0 +1,22 @@
+# Format: #/name defines a new extras_require group called name
+# Uncommented lines after the group definition insert things into that group.
+
+#/animated_stickers
+pillow>=4,<10
+
+#/e2be
+python-olm>=3,<4
+unpaddedbase64>=1,<3
+
+#/metrics
+prometheus_client>=0.6,<0.14
+
+#/proxy
+pysocks
+aiohttp-socks
+
+#/weblogin
+setuptools
+
+#/sqlite
+aiosqlite>=0.16,<0.18
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000..8ea98d6
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1,9 @@
+aiohttp>=3,<4
+asyncpg>=0.20,<0.26
+bson>=0.5,<0.6
+commonmark>=0.8,<0.10
+mautrix==0.15.0rc4
+pycryptodome>=3,<4
+python-magic>=0.4,<0.5
+ruamel.yaml>=0.15.94,<0.18
+yarl>=1,<2
diff --git a/setup.py b/setup.py
new file mode 100644
index 0000000..77de715
--- /dev/null
+++ b/setup.py
@@ -0,0 +1,71 @@
+import setuptools
+
+from matrix_appservice_kakaotalk.get_version import git_tag, git_revision, version, linkified_version
+
+try:
+    long_desc = open("README.md").read()
+except IOError:
+    long_desc = "Failed to read README.md"
+
+with open("requirements.txt") as reqs:
+    install_requires = reqs.read().splitlines()
+
+with open("optional-requirements.txt") as reqs:
+    extras_require = {}
+    current = []
+    for line in reqs.read().splitlines():
+        if line.startswith("#/"):
+            extras_require[line[2:]] = current = []
+        elif not line or line.startswith("#"):
+            continue
+        else:
+            current.append(line)
+
+extras_require["all"] = list({dep for deps in extras_require.values() for dep in deps})
+
+with open("matrix_appservice_kakaotalk/version.py", "w") as version_file:
+    version_file.write(f"""# Generated in setup.py
+
+git_tag = {git_tag!r}
+git_revision = {git_revision!r}
+version = {version!r}
+linkified_version = {linkified_version!r}
+""")
+
+setuptools.setup(
+    name="matrix-appservice-kakaotalk",
+    version=version,
+    url="https://src.miscworks.net/fair/matrix-appservice-kakaotalk",
+
+    author="Andrew Ferrazzutti",
+    author_email="fair@miscworks.net",
+
+    description="A Matrix-KakaoTalk puppeting bridge.",
+    long_description=long_desc,
+    long_description_content_type="text/markdown",
+
+    packages=setuptools.find_packages(),
+
+    install_requires=install_requires,
+    extras_require=extras_require,
+    python_requires="~=3.7",
+
+    classifiers=[
+        "Development Status :: 1 - Planning",
+        "License :: OSI Approved :: GNU Affero General Public License v3 or later (AGPLv3+)",
+        "Topic :: Communications :: Chat",
+        "Framework :: AsyncIO",
+        "Programming Language :: Python",
+        "Programming Language :: Python :: 3",
+        "Programming Language :: Python :: 3.8",
+        "Programming Language :: Python :: 3.9",
+        "Programming Language :: Python :: 3.10",
+    ],
+    package_data={
+        "matrix_appservice_kakaotalk": ["example-config.yaml"],
+        "matrix_appservice_kakaotalk.web": ["static/*", "static/**/*"],
+    },
+    data_files=[
+        (".", ["matrix_appservice_kakaotalk/example-config.yaml"]),
+    ],
+)