Tulir Asokan
478 lines
21 KiB
Python
478 lines
21 KiB
Python
# mautrix-telegram - A Matrix-Telegram puppeting bridge
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# Copyright (C) 2019 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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from typing import Awaitable, Callable, Dict, Optional, Tuple, TYPE_CHECKING
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import asyncio
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import logging
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import json
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from aiohttp import web
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from telethon.utils import get_peer_id, resolve_id
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from telethon.tl.types import ChatForbidden, ChannelForbidden, TypeChat
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from mautrix.appservice import AppService
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from mautrix.errors import MatrixRequestError, IntentError
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from mautrix.types import UserID
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from ...types import TelegramID
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from ...user import User
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from ...portal import Portal
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from ...commands.portal.util import user_has_power_level, get_initial_state
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from ..common import AuthAPI
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if TYPE_CHECKING:
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from ...__main__ import TelegramBridge
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class ProvisioningAPI(AuthAPI):
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log: logging.Logger = logging.getLogger("mau.web.provisioning")
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secret: str
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az: AppService
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bridge: 'TelegramBridge'
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app: web.Application
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def __init__(self, bridge: "TelegramBridge") -> None:
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super().__init__(bridge.loop)
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self.secret = bridge.config["appservice.provisioning.shared_secret"]
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self.az = bridge.az
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self.bridge = bridge
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self.app = web.Application(loop=bridge.loop, middlewares=[self.error_middleware])
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portal_prefix = "/portal/{mxid:![^/]+}"
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self.app.router.add_route("GET", f"{portal_prefix}", self.get_portal_by_mxid)
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self.app.router.add_route("GET", "/portal/{tgid:-[0-9]+}", self.get_portal_by_tgid)
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self.app.router.add_route("POST", portal_prefix + "/connect/{chat_id:-[0-9]+}",
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self.connect_chat)
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self.app.router.add_route("POST", f"{portal_prefix}/create", self.create_chat)
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self.app.router.add_route("POST", f"{portal_prefix}/disconnect", self.disconnect_chat)
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user_prefix = "/user/{mxid:@[^:]*:[^/]+}"
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self.app.router.add_route("GET", f"{user_prefix}", self.get_user_info)
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self.app.router.add_route("GET", f"{user_prefix}/chats", self.get_chats)
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self.app.router.add_route("POST", f"{user_prefix}/logout", self.logout)
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self.app.router.add_route("POST", f"{user_prefix}/login/bot_token", self.send_bot_token)
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self.app.router.add_route("POST", f"{user_prefix}/login/request_code", self.request_code)
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self.app.router.add_route("POST", f"{user_prefix}/login/send_code", self.send_code)
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self.app.router.add_route("POST", f"{user_prefix}/login/send_password", self.send_password)
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self.app.router.add_route("GET", "/bridge", self.bridge_info)
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async def get_portal_by_mxid(self, request: web.Request) -> web.Response:
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err = self.check_authorization(request)
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if err is not None:
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return err
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mxid = request.match_info["mxid"]
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portal = await Portal.get_by_mxid(mxid)
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if not portal:
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return self.get_error_response(404, "portal_not_found",
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"Portal with given Matrix ID not found.")
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return await self._get_portal_response(UserID(request.query.get("user_id", "")), portal)
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async def get_portal_by_tgid(self, request: web.Request) -> web.Response:
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err = self.check_authorization(request)
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if err is not None:
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return err
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try:
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tgid, _ = resolve_id(int(request.match_info["tgid"]))
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except ValueError:
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return self.get_error_response(400, "tgid_invalid",
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"Given chat ID is not valid.")
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portal = await Portal.get_by_tgid(tgid)
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if not portal:
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return self.get_error_response(404, "portal_not_found",
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"Portal to given Telegram chat not found.")
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return await self._get_portal_response(UserID(request.query.get("user_id", "")), portal)
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async def _get_portal_response(self, user_id: UserID, portal: Portal) -> web.Response:
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user, _ = await self.get_user(user_id, expect_logged_in=None, require_puppeting=False)
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return web.json_response({
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"mxid": portal.mxid,
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"chat_id": get_peer_id(portal.peer),
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"peer_type": portal.peer_type,
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"title": portal.title,
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"about": portal.about,
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"username": portal.username,
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"megagroup": portal.megagroup,
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"can_unbridge": (await portal.can_user_perform(user, "unbridge")) if user else False,
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})
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async def connect_chat(self, request: web.Request) -> web.Response:
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err = self.check_authorization(request)
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if err is not None:
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return err
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room_id = request.match_info["mxid"]
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if await Portal.get_by_mxid(room_id):
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return self.get_error_response(409, "room_already_bridged",
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"Room is already bridged to another Telegram chat.")
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chat_id = request.match_info["chat_id"]
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if chat_id.startswith("-100"):
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tgid = TelegramID(int(chat_id[4:]))
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peer_type = "channel"
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elif chat_id.startswith("-"):
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tgid = TelegramID(-int(chat_id))
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peer_type = "chat"
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else:
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return self.get_error_response(400, "tgid_invalid", "Invalid Telegram chat ID.")
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user, err = await self.get_user(request.query.get("user_id", None), expect_logged_in=None,
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require_puppeting=False)
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if err is not None:
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return err
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elif user and not await user_has_power_level(room_id, self.az.intent, user, "bridge"):
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return self.get_error_response(403, "not_enough_permissions",
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"You do not have the permissions to bridge that room.")
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is_logged_in = user is not None and await user.is_logged_in()
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acting_user = user if is_logged_in else self.bridge.bot
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if not acting_user:
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return self.get_login_response(status=403, errcode="not_logged_in",
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error="You are not logged in and there is no relay bot.")
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portal = await Portal.get_by_tgid(tgid, peer_type=peer_type)
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if portal.mxid == room_id:
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return self.get_error_response(200, "bridge_exists",
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"Telegram chat is already bridged to that Matrix room.")
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elif portal.mxid:
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force = request.query.get("force", None)
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if force in ("delete", "unbridge"):
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delete = force == "delete"
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await portal.cleanup_portal("Portal deleted (moving to another room)" if delete
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else "Room unbridged (portal moving to another room)",
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puppets_only=not delete)
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else:
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return self.get_error_response(409, "chat_already_bridged",
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"Telegram chat is already bridged to another "
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"Matrix room.")
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async with portal._room_create_lock:
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entity: Optional[TypeChat] = None
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try:
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entity = await acting_user.client.get_entity(portal.peer)
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except Exception:
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self.log.exception("Failed to get_entity(%s) for manual bridging.", portal.peer)
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if not entity or isinstance(entity, (ChatForbidden, ChannelForbidden)):
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if is_logged_in:
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return self.get_error_response(403, "user_not_in_chat",
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"Failed to get info of Telegram chat. "
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"Are you in the chat?")
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return self.get_error_response(403, "bot_not_in_chat",
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"Failed to get info of Telegram chat. "
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"Is the relay bot in the chat?")
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portal.mxid = room_id
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portal.by_mxid[portal.mxid] = portal
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(portal.title, portal.about, levels,
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portal.encrypted) = await get_initial_state(self.az.intent, room_id)
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portal.photo_id = ""
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await portal.save()
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asyncio.ensure_future(portal.update_matrix_room(user, entity, direct=False, levels=levels),
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loop=self.loop)
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return web.Response(status=202, body="{}")
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async def create_chat(self, request: web.Request) -> web.Response:
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err = self.check_authorization(request)
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if err is not None:
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return err
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data = await self.get_data(request)
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if not data:
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return self.get_error_response(400, "json_invalid", "Invalid JSON.")
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room_id = request.match_info["mxid"]
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if await Portal.get_by_mxid(room_id):
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return self.get_error_response(409, "room_already_bridged",
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"Room is already bridged to another Telegram chat.")
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user, err = await self.get_user(request.query.get("user_id", None), expect_logged_in=None,
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require_puppeting=False)
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if err is not None:
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return err
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elif not await user.is_logged_in() or user.is_bot:
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return self.get_error_response(403, "not_logged_in_real_account",
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"You are not logged in with a real account.")
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elif not await user_has_power_level(room_id, self.az.intent, user, "bridge"):
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return self.get_error_response(403, "not_enough_permissions",
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"You do not have the permissions to bridge that room.")
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try:
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title, about, _, encrypted = await get_initial_state(self.az.intent, room_id)
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except (MatrixRequestError, IntentError):
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return self.get_error_response(403, "bot_not_in_room",
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"The bridge bot is not in the given room.")
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about = data.get("about", about)
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title = data.get("title", title)
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if len(title) == 0:
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return self.get_error_response(400, "body_value_invalid", "Title can not be empty.")
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type = data.get("type", "")
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if type not in ("group", "chat", "supergroup", "channel"):
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return self.get_error_response(400, "body_value_invalid",
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"Given chat type is not valid.")
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supergroup = type == "supergroup"
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type = {
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"supergroup": "channel",
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"channel": "channel",
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"chat": "chat",
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"group": "chat",
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}[type]
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portal = Portal(tgid=TelegramID(0), mxid=room_id, title=title, about=about, peer_type=type,
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encrypted=encrypted, tg_receiver=TelegramID(0))
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try:
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await portal.create_telegram_chat(user, supergroup=supergroup)
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except ValueError as e:
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await portal.delete()
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return self.get_error_response(500, "unknown_error", e.args[0])
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return web.json_response({
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"chat_id": portal.tgid,
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}, status=201)
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async def disconnect_chat(self, request: web.Request) -> web.Response:
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err = self.check_authorization(request)
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if err is not None:
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return err
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portal = await Portal.get_by_mxid(request.match_info["mxid"])
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if not portal or not portal.tgid:
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return self.get_error_response(404, "portal_not_found",
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"Room is not a portal.")
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user, err = await self.get_user(request.query.get("user_id", None), expect_logged_in=None,
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require_puppeting=False, require_user=False)
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if err is not None:
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return err
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elif user and not await user_has_power_level(portal.mxid, self.az.intent, user,
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"unbridge"):
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return self.get_error_response(403, "not_enough_permissions",
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"You do not have the permissions to unbridge that room.")
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delete = request.query.get("delete", "").lower() in ("true", "t", "1", "yes", "y")
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sync = request.query.get("delete", "").lower() in ("true", "t", "1", "yes", "y")
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coro = portal.cleanup_and_delete() if delete else portal.unbridge()
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if sync:
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try:
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await coro
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except Exception:
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self.log.exception("Failed to disconnect chat")
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return self.get_error_response(500, "exception", "Failed to disconnect chat")
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else:
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asyncio.ensure_future(coro, loop=self.loop)
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return web.json_response({}, status=200 if sync else 202)
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async def get_user_info(self, request: web.Request) -> web.Response:
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data, user, err = await self.get_user_request_info(request, expect_logged_in=None,
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require_puppeting=False)
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if err is not None:
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return err
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user_data = None
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if await user.is_logged_in():
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me = await user.get_me()
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if me:
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await user.update_info(me)
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user_data = {
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"id": user.tgid,
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"username": user.tg_username,
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"first_name": me.first_name,
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"last_name": me.last_name,
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"phone": user.tg_phone,
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"is_bot": user.is_bot,
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}
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return web.json_response({
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"telegram": user_data,
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"mxid": user.mxid,
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"permissions": user.permissions,
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})
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async def get_chats(self, request: web.Request) -> web.Response:
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data, user, err = await self.get_user_request_info(request, expect_logged_in=True)
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if err is not None:
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return err
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if not user.is_bot:
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return web.json_response([{
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"id": chat.id,
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"title": chat.title,
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} async for chat in user.client.iter_dialogs(ignore_migrated=True, archived=False)])
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else:
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return web.json_response([{
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"id": get_peer_id(chat.peer),
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"title": chat.title,
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} for chat in (await user.get_cached_portals()).values() if chat.tgid])
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async def send_bot_token(self, request: web.Request) -> web.Response:
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data, user, err = await self.get_user_request_info(request)
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if err is not None:
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return err
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return await self.post_login_token(user, data.get("token", ""))
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async def request_code(self, request: web.Request) -> web.Response:
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data, user, err = await self.get_user_request_info(request)
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if err is not None:
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return err
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return await self.post_login_phone(user, data.get("phone", ""))
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async def send_code(self, request: web.Request) -> web.Response:
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data, user, err = await self.get_user_request_info(request)
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if err is not None:
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return err
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return await self.post_login_code(user, data.get("code", 0), password_in_data=False)
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async def send_password(self, request: web.Request) -> web.Response:
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data, user, err = await self.get_user_request_info(request)
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if err is not None:
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return err
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return await self.post_login_password(user, data.get("password", ""))
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async def logout(self, request: web.Request) -> web.Response:
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_, user, err = await self.get_user_request_info(request, expect_logged_in=None,
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require_puppeting=False,
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want_data=False)
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if err is not None:
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return err
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await user.log_out()
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return web.json_response({}, status=200)
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async def bridge_info(self, request: web.Request) -> web.Response:
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return web.json_response({
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"relaybot_username": (self.bridge.bot.tg_username
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if self.bridge.bot is not None else None),
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}, status=200)
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@staticmethod
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async def error_middleware(_, handler: Callable[[web.Request], Awaitable[web.Response]]
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) -> Callable[[web.Request], Awaitable[web.Response]]:
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async def middleware_handler(request: web.Request) -> web.Response:
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try:
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return await handler(request)
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except web.HTTPException as ex:
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return web.json_response({
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"error": f"Unhandled HTTP {ex.status}",
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"errcode": f"unhandled_http_{ex.status}",
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}, status=ex.status)
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return middleware_handler
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@staticmethod
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def get_error_response(status=200, errcode="", error="") -> web.Response:
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return web.json_response({
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"error": error,
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"errcode": errcode,
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}, status=status)
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def get_mx_login_response(self, status=200, state="", username="", phone="", human_tg_id="",
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mxid="", message="", error="", errcode=""):
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raise NotImplementedError()
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def get_login_response(self, status=200, state="", username="", phone: str = "",
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human_tg_id: str = "", mxid="", message="", error="", errcode=""
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) -> web.Response:
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if username or phone:
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resp = {
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"state": "logged-in",
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"username": username,
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"phone": phone,
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}
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elif message:
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resp = {
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"state": state,
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"message": message,
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}
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else:
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resp = {
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"error": error,
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"errcode": errcode,
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}
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if state:
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resp["state"] = state
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return web.json_response(resp, status=status)
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def check_authorization(self, request: web.Request) -> Optional[web.Response]:
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auth = request.headers.get("Authorization", "")
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if auth != f"Bearer {self.secret}":
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return self.get_error_response(error="Shared secret is not valid.",
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errcode="shared_secret_invalid",
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status=401)
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return None
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@staticmethod
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async def get_data(request: web.Request) -> Optional[dict]:
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try:
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return await request.json()
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except json.JSONDecodeError:
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return None
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async def get_user(self, mxid: Optional[UserID], expect_logged_in: Optional[bool] = False,
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require_puppeting: bool = True, require_user: bool = True
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) -> Tuple[Optional[User], Optional[web.Response]]:
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if not mxid:
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if not require_user:
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return None, None
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return None, self.get_login_response(error="User ID not given.",
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errcode="mxid_empty", status=400)
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user = await User.get_and_start_by_mxid(mxid, even_if_no_session=True)
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if require_puppeting and not user.puppet_whitelisted:
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return user, self.get_login_response(error="You are not whitelisted.",
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errcode="mxid_not_whitelisted", status=403)
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if expect_logged_in is not None:
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logged_in = await user.is_logged_in()
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|
if not expect_logged_in and logged_in:
|
|
return user, self.get_login_response(username=user.tg_username, phone=user.tg_phone,
|
|
status=409,
|
|
error="You are already logged in.",
|
|
errcode="already_logged_in")
|
|
elif expect_logged_in and not logged_in:
|
|
return user, self.get_login_response(status=403, error="You are not logged in.",
|
|
errcode="not_logged_in")
|
|
return user, None
|
|
|
|
async def get_user_request_info(self, request: web.Request,
|
|
expect_logged_in: Optional[bool] = False,
|
|
require_puppeting: bool = False,
|
|
want_data: bool = True,
|
|
) -> (Tuple[Optional[Dict], Optional[User],
|
|
Optional[web.Response]]):
|
|
err = self.check_authorization(request)
|
|
if err is not None:
|
|
return None, None, err
|
|
|
|
data = None
|
|
if want_data and (request.method == "POST" or request.method == "PUT"):
|
|
data = await self.get_data(request)
|
|
if not data:
|
|
return None, None, self.get_login_response(error="Invalid JSON.",
|
|
errcode="json_invalid", status=400)
|
|
|
|
mxid = request.match_info["mxid"]
|
|
user, err = await self.get_user(mxid, expect_logged_in, require_puppeting)
|
|
|
|
return data, user, err
|