Tulir Asokan
310 lines
13 KiB
Python
310 lines
13 KiB
Python
# -*- coding: future_fstrings -*-
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# mautrix-telegram - A Matrix-Telegram puppeting bridge
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# Copyright (C) 2018 Tulir Asokan
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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import platform
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from telethon.tl.types import *
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from mautrix_appservice import MatrixRequestError
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from .tgclient import MautrixTelegramClient
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from .db import Message as DBMessage
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from . import portal as po, puppet as pu, __version__
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config = None
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# Value updated from config in init()
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MAX_DELETIONS = 10
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class AbstractUser:
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session_container = None
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loop = None
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log = None
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db = None
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az = None
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def __init__(self):
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self.whitelisted = False
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self.client = None
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self.tgid = None
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self.mxid = None
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self.is_relaybot = False
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self.is_bot = False
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@property
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def connected(self):
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return self.client and self.client.is_connected()
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def _init_client(self):
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self.log.debug(f"Initializing client for {self.name}")
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device = f"{platform.system()} {platform.release()}"
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sysversion = MautrixTelegramClient.__version__
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self.session = self.session_container.new_session(self.name)
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self.client = MautrixTelegramClient(session=self.session,
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api_id=config["telegram.api_id"],
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api_hash=config["telegram.api_hash"],
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loop=self.loop,
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app_version=__version__,
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system_version=sysversion,
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device_model=device,
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report_errors=False)
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self.client.add_event_handler(self._update_catch)
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async def update(self, update):
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return False
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async def post_login(self):
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raise NotImplementedError()
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async def _update_catch(self, update):
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try:
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if not await self.update(update):
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await self._update(update)
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except Exception:
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self.log.exception("Failed to handle Telegram update")
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async def _get_dialogs(self, limit=None):
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if self.is_bot:
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return
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dialogs = await self.client.get_dialogs(limit=limit)
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return [dialog.entity for dialog in dialogs if (
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not isinstance(dialog.entity, (User, ChatForbidden, ChannelForbidden))
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and not (isinstance(dialog.entity, Chat)
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and (dialog.entity.deactivated or dialog.entity.left)))]
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@property
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def name(self):
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raise NotImplementedError()
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async def is_logged_in(self):
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return self.client and await self.client.is_user_authorized()
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async def has_full_access(self, allow_bot=False):
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return self.whitelisted and (not self.is_bot or allow_bot) and await self.is_logged_in()
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async def start(self):
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if not self.client:
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self._init_client()
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await self.client.connect()
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self.log.debug("%s connected: %s", self.mxid, self.connected)
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return self
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async def ensure_started(self, even_if_no_session=False):
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if not self.whitelisted:
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return self
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self.log.debug("ensure_started(%s, connected=%s, even_if_no_session=%s, session_count=%s)",
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self.mxid, self.connected, even_if_no_session,
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self.session_container.Session.query.filter(
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self.session_container.Session.session_id == self.mxid).count())
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should_connect = (even_if_no_session or
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self.session_container.Session.query.filter(
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self.session_container.Session.session_id == self.mxid).count() > 0)
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if not self.connected and should_connect:
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await self.start()
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return self
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def stop(self):
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self.client.disconnect()
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self.client = None
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# region Telegram update handling
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async def _update(self, update):
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if isinstance(update, (UpdateShortChatMessage, UpdateShortMessage, UpdateNewChannelMessage,
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UpdateNewMessage, UpdateEditMessage, UpdateEditChannelMessage)):
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await self.update_message(update)
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elif isinstance(update, UpdateDeleteMessages):
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await self.delete_message(update)
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elif isinstance(update, UpdateDeleteChannelMessages):
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await self.delete_channel_message(update)
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elif isinstance(update, (UpdateChatUserTyping, UpdateUserTyping)):
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await self.update_typing(update)
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elif isinstance(update, UpdateUserStatus):
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await self.update_status(update)
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elif isinstance(update, (UpdateChatAdmins, UpdateChatParticipantAdmin)):
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await self.update_admin(update)
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elif isinstance(update, UpdateChatParticipants):
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await self.update_participants(update)
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elif isinstance(update, UpdateChannelPinnedMessage):
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await self.update_pinned_messages(update)
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elif isinstance(update, (UpdateUserName, UpdateUserPhoto)):
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await self.update_others_info(update)
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elif isinstance(update, UpdateReadHistoryOutbox):
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await self.update_read_receipt(update)
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else:
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self.log.debug("Unhandled update: %s", update)
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async def update_pinned_messages(self, update):
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portal = po.Portal.get_by_tgid(update.channel_id)
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if portal and portal.mxid:
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await portal.receive_telegram_pin_id(update.id)
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async def update_participants(self, update):
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portal = po.Portal.get_by_tgid(update.participants.chat_id)
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if portal and portal.mxid:
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await portal.update_telegram_participants(update.participants.participants)
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async def update_read_receipt(self, update):
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if not isinstance(update.peer, PeerUser):
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self.log.debug("Unexpected read receipt peer: %s", update.peer)
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return
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portal = po.Portal.get_by_tgid(update.peer.user_id, self.tgid)
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if not portal or not portal.mxid:
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return
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# We check that these are user read receipts, so tg_space is always the user ID.
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message = DBMessage.query.get((update.max_id, self.tgid))
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if not message:
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return
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puppet = pu.Puppet.get(update.peer.user_id)
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await puppet.intent.mark_read(portal.mxid, message.mxid)
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async def update_admin(self, update):
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# TODO duplication not checked
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portal = po.Portal.get_by_tgid(update.chat_id, peer_type="chat")
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if isinstance(update, UpdateChatAdmins):
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await portal.set_telegram_admins_enabled(update.enabled)
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elif isinstance(update, UpdateChatParticipantAdmin):
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await portal.set_telegram_admin(update.user_id)
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else:
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self.log.warning("Unexpected admin status update: %s", update)
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async def update_typing(self, update):
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if isinstance(update, UpdateUserTyping):
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portal = po.Portal.get_by_tgid(update.user_id, self.tgid, "user")
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else:
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portal = po.Portal.get_by_tgid(update.chat_id, peer_type="chat")
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sender = pu.Puppet.get(update.user_id)
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await portal.handle_telegram_typing(sender, update)
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async def update_others_info(self, update):
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# TODO duplication not checked
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puppet = pu.Puppet.get(update.user_id)
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if isinstance(update, UpdateUserName):
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if await puppet.update_displayname(self, update):
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puppet.save()
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elif isinstance(update, UpdateUserPhoto):
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if await puppet.update_avatar(self, update.photo.photo_big):
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puppet.save()
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else:
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self.log.warning("Unexpected other user info update: %s", update)
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async def update_status(self, update):
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puppet = pu.Puppet.get(update.user_id)
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if isinstance(update.status, UserStatusOnline):
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await puppet.intent.set_presence("online")
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elif isinstance(update.status, UserStatusOffline):
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await puppet.intent.set_presence("offline")
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else:
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self.log.warning("Unexpected user status update: %s", update)
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return
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def get_message_details(self, update):
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if isinstance(update, UpdateShortChatMessage):
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portal = po.Portal.get_by_tgid(update.chat_id, peer_type="chat")
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sender = pu.Puppet.get(update.from_id)
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elif isinstance(update, UpdateShortMessage):
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portal = po.Portal.get_by_tgid(update.user_id, self.tgid, "user")
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sender = pu.Puppet.get(self.tgid if update.out else update.user_id)
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elif isinstance(update, (UpdateNewMessage, UpdateNewChannelMessage,
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UpdateEditMessage, UpdateEditChannelMessage)):
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update = update.message
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if isinstance(update.to_id, PeerUser) and not update.out:
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portal = po.Portal.get_by_tgid(update.from_id, peer_type="user",
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tg_receiver=self.tgid)
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else:
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portal = po.Portal.get_by_entity(update.to_id, receiver_id=self.tgid)
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sender = pu.Puppet.get(update.from_id) if update.from_id else None
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else:
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self.log.warning(
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f"Unexpected message type in User#get_message_details: {type(update)}")
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return update, None, None
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return update, sender, portal
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@staticmethod
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async def _try_redact(portal, message):
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if not portal:
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return
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try:
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await portal.main_intent.redact(message.mx_room, message.mxid)
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except MatrixRequestError:
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pass
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async def delete_message(self, update):
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if len(update.messages) > MAX_DELETIONS:
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return
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for message in update.messages:
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message = DBMessage.query.get((message, self.tgid))
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if not message:
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continue
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self.db.delete(message)
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number_left = DBMessage.query.filter(DBMessage.mxid == message.mxid,
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DBMessage.mx_room == message.mx_room).count()
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if number_left == 0:
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portal = po.Portal.get_by_mxid(message.mx_room)
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await self._try_redact(portal, message)
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self.db.commit()
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async def delete_channel_message(self, update):
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if len(update.messages) > MAX_DELETIONS:
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return
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portal = po.Portal.get_by_tgid(update.channel_id)
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if not portal:
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return
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for message in update.messages:
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message = DBMessage.query.get((message, portal.tgid))
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if not message:
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continue
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self.db.delete(message)
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await self._try_redact(portal, message)
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self.db.commit()
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async def update_message(self, original_update):
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update, sender, portal = self.get_message_details(original_update)
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if isinstance(update, MessageService):
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if isinstance(update.action, MessageActionChannelMigrateFrom):
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self.log.debug(f"Ignoring action %s to %s by %d", update.action,
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portal.tgid_log,
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sender.id)
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return
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self.log.debug("Handling action %s to %s by %d", update.action, portal.tgid_log,
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sender.id)
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return await portal.handle_telegram_action(self, sender, update)
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user = sender.tgid if sender else "admin"
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if isinstance(original_update, (UpdateEditMessage, UpdateEditChannelMessage)):
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if config["bridge.edits_as_replies"]:
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self.log.debug("Handling edit %s to %s by %s", update, portal.tgid_log, user)
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return await portal.handle_telegram_edit(self, sender, update)
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return
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self.log.debug("Handling message %s to %s by %s", update, portal.tgid_log, user)
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return await portal.handle_telegram_message(self, sender, update)
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# endregion
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def init(context):
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global config, MAX_DELETIONS
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AbstractUser.az, AbstractUser.db, config, AbstractUser.loop, _ = context
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AbstractUser.session_container = context.telethon_session_container
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MAX_DELETIONS = config.get("bridge.max_telegram_delete", 10)
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