matrix-puppeteer-line/matrix_puppeteer_line/user.py

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# matrix-puppeteer-line - A very hacky Matrix-LINE bridge based on running LINE's Chrome extension in Puppeteer
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# Copyright (C) 2020-2021 Tulir Asokan, Andrew Ferrazzutti
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#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
from typing import Dict, List, Optional, TYPE_CHECKING, cast
from collections import defaultdict
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import asyncio
from mautrix.bridge import BaseUser
from mautrix.types import UserID, RoomID
from mautrix.appservice import AppService, IntentAPI
from mautrix.util.opt_prometheus import Gauge
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from .db import User as DBUser, Portal as DBPortal, Message as DBMessage
from .config import Config
from .rpc import Client, Message, Receipt
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from . import puppet as pu, portal as po
if TYPE_CHECKING:
from .__main__ import MessagesBridge
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METRIC_CONNECTED = Gauge("bridge_connected", "Users connected to LINE")
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class User(DBUser, BaseUser):
by_mxid: Dict[UserID, 'User'] = {}
config: Config
az: AppService
loop: asyncio.AbstractEventLoop
client: Optional[Client]
intent: Optional[IntentAPI]
is_real_user = True
_notice_room_lock: asyncio.Lock
_connection_check_task: Optional[asyncio.Task]
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def __init__(self, mxid: UserID, notice_room: Optional[RoomID] = None) -> None:
super().__init__(mxid=mxid, notice_room=notice_room)
self._notice_room_lock = asyncio.Lock()
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self.command_status = None
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self.is_whitelisted = self.is_admin = self.config["bridge.user"] == mxid
self.log = self.log.getChild(self.mxid)
self._metric_value = defaultdict(lambda: False)
self._connection_check_task = None
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self.client = None
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self.intent = None
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@classmethod
def init_cls(cls, bridge: 'MessagesBridge') -> None:
cls.config = bridge.config
cls.az = bridge.az
cls.loop = bridge.loop
Client.config = bridge.config
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async def send_bridge_notice(self, text) -> None:
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if self.notice_room:
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self.log.debug(f"Sending bridge notice: {text}")
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await self.az.intent.send_notice(self.notice_room, text)
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async def is_logged_in(self) -> bool:
try:
return self.client and (await self.client.start()).is_logged_in
except Exception:
return False
async def try_connect(self) -> None:
try:
await self.connect()
except Exception:
self.log.exception("Error while connecting to puppeteer script")
async def connect_double_puppet(self) -> None:
self.log.debug("Trying to log in with shared secret")
try:
access_token = await pu.Puppet._login_with_shared_secret(self.mxid)
if not access_token:
self.log.warning("Failed to log in with shared secret")
return
self.log.debug("Logged in with shared secret")
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self.intent = self.az.intent.user(self.mxid, access_token)
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except Exception:
self.log.exception("Error logging in with shared secret")
async def connect(self) -> None:
self.loop.create_task(self.connect_double_puppet())
self.client = Client(self.mxid)
self.log.debug("Starting client")
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await self.send_bridge_notice("Starting up...")
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state = await self.client.start()
await self.client.on_message(self.handle_message)
await self.client.on_receipt(self.handle_receipt)
if state.is_connected:
self._track_metric(METRIC_CONNECTED, True)
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if state.is_logged_in:
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await self.send_bridge_notice("Already logged in to LINE")
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self.loop.create_task(self._try_sync())
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else:
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await self.send_bridge_notice("Ready to log in to LINE")
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async def _try_sync(self) -> None:
try:
await self.sync()
except Exception:
self.log.exception("Exception while syncing")
async def _check_connection_loop(self) -> None:
while True:
self._track_metric(METRIC_CONNECTED, await self.client.is_connected())
await asyncio.sleep(5)
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async def sync(self) -> None:
if self._connection_check_task:
self._connection_check_task.cancel()
self._connection_check_task = self.loop.create_task(self._check_connection_loop())
await self.client.pause()
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await self.client.set_last_message_ids(await DBMessage.get_max_mids())
limit = self.config["bridge.initial_conversation_sync"]
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self.log.info("Syncing chats")
await self.send_bridge_notice("Synchronizing chats...")
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chats = await self.client.get_chats()
num_created = 0
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for index, chat in enumerate(chats):
portal = await po.Portal.get_by_chat_id(chat.id, create=True)
if portal.mxid or num_created < limit:
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chat = await self.client.get_chat(chat.id)
if portal.mxid:
await portal.update_matrix_room(self, chat)
else:
await portal.create_matrix_room(self, chat)
num_created += 1
await self.send_bridge_notice("Synchronization complete")
await self.client.resume()
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async def stop(self) -> None:
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# TODO Notices for shutdown messages
if self._connection_check_task:
self._connection_check_task.cancel()
self._connection_check_task = None
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if self.client:
await self.client.stop()
async def get_direct_chats(self) -> Dict[UserID, List[RoomID]]:
return {
pu.Puppet.get_mxid_from_id(portal.other_user): [portal.mxid]
for portal in await DBPortal.find_private_chats()
if portal.mxid
}
async def handle_message(self, evt: Message) -> None:
self.log.trace("Received message %s", evt)
portal = await po.Portal.get_by_chat_id(evt.chat_id, create=True)
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puppet = await pu.Puppet.get_by_mid(evt.sender.id) if not portal.is_direct else None
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if not portal.mxid:
await self.client.set_last_message_ids(await DBMessage.get_max_mids())
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chat_info = await self.client.get_chat(evt.chat_id)
await portal.create_matrix_room(self, chat_info)
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await portal.handle_remote_message(self, puppet, evt)
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async def handle_receipt(self, receipt: Receipt) -> None:
self.log.trace(f"Received receipt for chat {receipt.chat_id}")
portal = await po.Portal.get_by_chat_id(receipt.chat_id, create=True)
if not portal.mxid:
chat_info = await self.client.get_chat(receipt.chat_id)
await portal.create_matrix_room(self, chat_info)
await portal.handle_remote_receipt(receipt)
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def _add_to_cache(self) -> None:
self.by_mxid[self.mxid] = self
@classmethod
async def get_by_mxid(cls, mxid: UserID, create: bool = True) -> Optional['User']:
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:
user = cls(mxid)
await user.insert()
user._add_to_cache()
return user
return None