mirror of
https://github.com/mautrix/telegram.git
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211 lines
7.7 KiB
Python
211 lines
7.7 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 logging
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import re
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from telethon_aio.tl.types import *
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from telethon_aio.tl.functions.messages import GetChatsRequest
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from telethon_aio.tl.functions.channels import GetChannelsRequest
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from telethon_aio.errors import ChannelInvalidError, ChannelPrivateError
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from .abstract_user import AbstractUser
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from .db import BotChat
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from . import puppet as pu, portal as po, user as u
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config = None
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class Bot(AbstractUser):
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log = logging.getLogger("mau.bot")
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mxid_regex = re.compile("@.+:.+")
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def __init__(self, token):
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super().__init__()
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self.token = token
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self.whitelisted = True
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self.username = None
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self.chats = {chat.id: chat.type for chat in BotChat.query.all()}
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async def start(self):
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await super().start()
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if not self.logged_in:
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await self.client.sign_in(bot_token=self.token)
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await self.post_login()
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return self
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async def post_login(self):
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info = await self.client.get_me()
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self.tgid = info.id
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self.username = info.username
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self.mxid = pu.Puppet.get_mxid_from_id(self.tgid)
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chat_ids = [id for id, type in self.chats.items() if type == "chat"]
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response = await self.client(GetChatsRequest(chat_ids))
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for chat in response.chats:
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if isinstance(chat, ChatForbidden) or chat.left or chat.deactivated:
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self.remove_chat(chat.id)
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channel_ids = [InputChannel(id, 0)
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for id, type in self.chats.items()
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if type == "channel"]
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for id in channel_ids:
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try:
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await self.client(GetChannelsRequest([id]))
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except (ChannelPrivateError, ChannelInvalidError):
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self.remove_chat(id.channel_id)
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def register_portal(self, portal):
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self.add_chat(portal.tgid, portal.peer_type)
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def unregister_portal(self, portal):
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self.remove_chat(portal.tgid)
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def add_chat(self, id, type):
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if id not in self.chats:
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self.chats[id] = type
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self.db.add(BotChat(id=id, type=type))
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self.db.commit()
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def remove_chat(self, id):
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try:
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del self.chats[id]
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except KeyError:
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pass
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self.db.delete(BotChat.query.get(id))
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self.db.commit()
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async def handle_command_portal(self, portal, reply):
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if not config["bridge.authless_relaybot_portals"]:
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return await reply("This bridge doesn't allow portal creation from Telegram.")
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await portal.create_matrix_room(self)
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if portal.mxid:
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if portal.username:
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return await reply(
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f"Portal is public: [{portal.alias}](https://matrix.to/#/{portal.alias})")
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else:
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return await reply(
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"Portal is not public. Use `/invite <mxid>` to get an invite.")
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async def handle_command_invite(self, portal, reply, mxid):
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if len(mxid) == 0:
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return await reply("Usage: `/invite <mxid>`")
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elif not portal.mxid:
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return await reply("Portal does not have Matrix room. "
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"Create one with /portal first.")
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if not self.mxid_regex.match(mxid):
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return await reply("That doesn't look like a Matrix ID.")
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user = await u.User.get_by_mxid(mxid).ensure_started()
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if not user.whitelisted:
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return await reply("That user is not whitelisted to use the bridge.")
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elif user.logged_in:
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displayname = f"@{user.username}" if user.username else user.displayname
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return await reply("That user seems to be logged in. "
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f"Just invite [{displayname}](tg://user?id={user.tgid})")
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else:
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await portal.main_intent.invite(portal.mxid, user.mxid)
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return await reply(f"Invited `{user.mxid}` to the portal.")
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def handle_command_id(self, message, reply):
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# Provide the prefixed ID to the user so that the user wouldn't need to specify whether the
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# chat is a normal group or a supergroup/channel when using the ID.
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if isinstance(message.to_id, PeerChannel):
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return reply(f"-100{message.to_id.channel_id}")
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return reply(str(-message.to_id.chat_id))
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def match_command(self, text, command):
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text = text.lower()
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command = f"/{command.lower()}"
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command_targeted = f"{command}@{self.username.lower()}"
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is_plain_command = text == command or text == command_targeted
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if is_plain_command:
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return True
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is_arg_command = text.startswith(command + " ") or text.startswith(command_targeted + " ")
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if is_arg_command:
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return True
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return False
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async def handle_command(self, message):
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def reply(reply_text):
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return self.client.send_message(message.to_id, reply_text, markdown=True,
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reply_to=message.id)
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text = message.message
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if self.match_command(text, "id"):
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return await self.handle_command_id(message, reply)
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portal = po.Portal.get_by_entity(message.to_id)
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if self.match_command(text, "portal"):
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await self.handle_command_portal(portal, reply)
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elif self.match_command(text, "invite"):
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try:
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mxid = text[text.index(" ") + 1:]
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except ValueError:
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mxid = ""
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await self.handle_command_invite(portal, reply, mxid=mxid)
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def handle_service_message(self, message):
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to_id = message.to_id
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if isinstance(to_id, PeerChannel):
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to_id = to_id.channel_id
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type = "channel"
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elif isinstance(to_id, PeerChat):
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to_id = to_id.chat_id
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type = "chat"
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else:
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return
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action = message.action
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if isinstance(action, MessageActionChatAddUser) and self.tgid in action.users:
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self.add_chat(to_id, type)
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elif isinstance(action, MessageActionChatDeleteUser) and action.user_id == self.tgid:
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self.remove_chat(to_id)
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async def update(self, update):
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if not isinstance(update, (UpdateNewMessage, UpdateNewChannelMessage)):
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return
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if isinstance(update.message, MessageService):
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return self.handle_service_message(update.message)
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is_command = (isinstance(update.message, Message)
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and update.message.entities and len(update.message.entities) > 0
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and isinstance(update.message.entities[0], MessageEntityBotCommand))
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if is_command:
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return await self.handle_command(update.message)
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def is_in_chat(self, peer_id):
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return peer_id in self.chats
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@property
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def name(self):
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return "bot"
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def init(context):
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global config
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config = context.config
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token = config["telegram.bot_token"]
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if token:
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return Bot(token)
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return None
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