Tulir Asokan
432 lines
15 KiB
Python
432 lines
15 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, Any, Dict, Iterable, Optional, Union, TYPE_CHECKING
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from difflib import SequenceMatcher
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import unicodedata
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import asyncio
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import logging
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from telethon.tl.types import (UserProfilePhoto, User, UpdateUserName, PeerUser, TypeInputPeer,
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InputPeerPhotoFileLocation, UserProfilePhotoEmpty, TypeInputUser)
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from mautrix.appservice import AppService, IntentAPI
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from mautrix.errors import MatrixRequestError
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from mautrix.bridge import CustomPuppetMixin
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from mautrix.types import UserID, SyncToken
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from mautrix.util.simple_template import SimpleTemplate
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from .types import TelegramID
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from .db import Puppet as DBPuppet
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from . import util, portal as p
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if TYPE_CHECKING:
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from .matrix import MatrixHandler
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from .config import Config
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from .context import Context
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from .abstract_user import AbstractUser
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config: Optional['Config'] = None
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class Puppet(CustomPuppetMixin):
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log: logging.Logger = logging.getLogger("mau.puppet")
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az: AppService
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mx: 'MatrixHandler'
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loop: asyncio.AbstractEventLoop
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hs_domain: str
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mxid_template: SimpleTemplate[TelegramID]
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displayname_template: SimpleTemplate[str]
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cache: Dict[TelegramID, 'Puppet'] = {}
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by_custom_mxid: Dict[UserID, 'Puppet'] = {}
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id: TelegramID
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access_token: Optional[str]
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custom_mxid: Optional[UserID]
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_next_batch: Optional[SyncToken]
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default_mxid: UserID
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username: Optional[str]
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displayname: Optional[str]
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displayname_source: Optional[TelegramID]
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photo_id: Optional[str]
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is_bot: bool
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is_registered: bool
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disable_updates: bool
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default_mxid_intent: IntentAPI
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intent: IntentAPI
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sync_task: Optional[asyncio.Future]
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_db_instance: Optional[DBPuppet]
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def __init__(self,
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id: TelegramID,
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access_token: Optional[str] = None,
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custom_mxid: Optional[UserID] = None,
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next_batch: Optional[SyncToken] = None,
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username: Optional[str] = None,
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displayname: Optional[str] = None,
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displayname_source: Optional[TelegramID] = None,
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photo_id: Optional[str] = None,
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is_bot: bool = False,
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is_registered: bool = False,
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disable_updates: bool = False,
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db_instance: Optional[DBPuppet] = None) -> None:
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self.id = id
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self.access_token = access_token
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self.custom_mxid = custom_mxid
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self._next_batch = next_batch
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self.default_mxid = self.get_mxid_from_id(self.id)
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self.username = username
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self.displayname = displayname
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self.displayname_source = displayname_source
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self.photo_id = photo_id
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self.is_bot = is_bot
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self.is_registered = is_registered
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self.disable_updates = disable_updates
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self._db_instance = db_instance
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self.default_mxid_intent = self.az.intent.user(self.default_mxid)
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self.intent = self._fresh_intent()
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self.sync_task = None
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self.cache[id] = self
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if self.custom_mxid:
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self.by_custom_mxid[self.custom_mxid] = self
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self.log = self.log.getChild(str(self.id))
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@property
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def tgid(self) -> TelegramID:
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return self.id
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@property
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def peer(self) -> PeerUser:
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return PeerUser(user_id=self.tgid)
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@property
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def next_batch(self) -> SyncToken:
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return self._next_batch
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@next_batch.setter
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def next_batch(self, value: SyncToken) -> None:
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self._next_batch = value
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self.db_instance.edit(next_batch=self._next_batch)
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@staticmethod
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async def is_logged_in() -> bool:
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""" Is True if the puppet is logged in. """
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return True
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@property
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def plain_displayname(self) -> str:
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return self.displayname_template.parse(self.displayname) or self.displayname
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def get_input_entity(self, user: 'AbstractUser'
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) -> Awaitable[Union[TypeInputPeer, TypeInputUser]]:
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return user.client.get_input_entity(self.peer)
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def intent_for(self, portal: 'p.Portal') -> IntentAPI:
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if portal.tgid == self.tgid:
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return self.default_mxid_intent
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return self.intent
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# region DB conversion
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@property
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def db_instance(self) -> DBPuppet:
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if not self._db_instance:
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self._db_instance = self.new_db_instance()
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return self._db_instance
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@property
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def _fields(self) -> Dict[str, Any]:
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return dict(access_token=self.access_token, next_batch=self._next_batch,
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custom_mxid=self.custom_mxid, username=self.username, is_bot=self.is_bot,
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displayname=self.displayname, displayname_source=self.displayname_source,
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photo_id=self.photo_id, matrix_registered=self.is_registered,
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disable_updates=self.disable_updates)
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def new_db_instance(self) -> DBPuppet:
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return DBPuppet(id=self.id, **self._fields)
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def save(self) -> None:
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self.db_instance.edit(**self._fields)
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@classmethod
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def from_db(cls, db_puppet: DBPuppet) -> 'Puppet':
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return Puppet(db_puppet.id, db_puppet.access_token, db_puppet.custom_mxid,
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db_puppet.next_batch, db_puppet.username, db_puppet.displayname,
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db_puppet.displayname_source, db_puppet.photo_id, db_puppet.is_bot,
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db_puppet.matrix_registered, db_puppet.disable_updates,
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db_instance=db_puppet)
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# endregion
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# region Info updating
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def similarity(self, query: str) -> int:
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username_similarity = (SequenceMatcher(None, self.username, query).ratio()
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if self.username else 0)
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displayname_similarity = (SequenceMatcher(None, self.displayname, query).ratio()
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if self.displayname else 0)
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similarity = max(username_similarity, displayname_similarity)
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return int(round(similarity * 100))
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@staticmethod
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def _filter_name(name: str) -> str:
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if not name:
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return ""
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whitespace = ("\t\n\r\v\f \u00a0\u034f\u180e\u2063\u202f\u205f\u2800\u3000\u3164\ufeff"
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"\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a\u200b"
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"\u200c\u200d\u200e\u200f\ufe0f")
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name = "".join(c for c in name.strip(whitespace) if unicodedata.category(c) != 'Cf')
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return name
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@classmethod
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def get_displayname(cls, info: User, enable_format: bool = True) -> str:
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fn = cls._filter_name(info.first_name)
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ln = cls._filter_name(info.last_name)
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data = {
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"phone number": info.phone if hasattr(info, "phone") else None,
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"username": info.username,
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"full name": " ".join([fn, ln]).strip(),
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"full name reversed": " ".join([ln, fn]).strip(),
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"first name": fn,
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"last name": ln,
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}
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preferences = config["bridge.displayname_preference"]
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name = None
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for preference in preferences:
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name = data[preference]
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if name:
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break
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if isinstance(info, User) and info.deleted:
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name = f"Deleted account {info.id}"
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elif not name:
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name = str(info.id)
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if not enable_format:
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return name
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return cls.displayname_template.format_full(name)
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async def try_update_info(self, source: 'AbstractUser', info: User) -> None:
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try:
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await self.update_info(source, info)
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except Exception:
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source.log.exception(f"Failed to update info of {self.tgid}")
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async def update_info(self, source: 'AbstractUser', info: User) -> None:
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if self.disable_updates:
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return
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changed = False
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if self.username != info.username:
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self.username = info.username
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changed = True
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try:
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changed = await self.update_displayname(source, info) or changed
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if isinstance(info.photo, UserProfilePhoto):
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changed = await self.update_avatar(source, info.photo) or changed
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except Exception:
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self.log.exception(f"Failed to update info from source {source.tgid}")
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self.is_bot = info.bot
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if changed:
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self.save()
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async def update_displayname(self, source: 'AbstractUser', info: Union[User, UpdateUserName]
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) -> bool:
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if self.disable_updates:
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return False
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allow_source = (source.is_relaybot
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or self.displayname_source == source.tgid
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# No displayname source, so just trust anything
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or self.displayname_source is None)
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if not allow_source:
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return False
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elif isinstance(info, UpdateUserName):
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info = await source.client.get_entity(PeerUser(self.tgid))
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displayname = self.get_displayname(info)
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if displayname != self.displayname:
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self.displayname = displayname
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self.displayname_source = source.tgid
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try:
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await self.default_mxid_intent.set_displayname(
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displayname[:config["bridge.displayname_max_length"]])
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except MatrixRequestError:
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self.log.exception("Failed to set displayname")
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self.displayname = ""
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self.displayname_source = None
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return True
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elif source.is_relaybot or self.displayname_source is None:
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self.displayname_source = source.tgid
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return True
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return False
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async def update_avatar(self, source: 'AbstractUser',
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photo: Union[UserProfilePhoto, UserProfilePhotoEmpty]) -> bool:
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if self.disable_updates:
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return False
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if isinstance(photo, UserProfilePhotoEmpty):
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photo_id = ""
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else:
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photo_id = str(photo.photo_id)
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if self.photo_id != photo_id:
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if not photo_id:
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self.photo_id = ""
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try:
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await self.default_mxid_intent.set_avatar_url("")
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except MatrixRequestError:
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self.log.exception("Failed to set avatar")
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self.photo_id = ""
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return True
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loc = InputPeerPhotoFileLocation(
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peer=await self.get_input_entity(source),
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local_id=photo.photo_big.local_id,
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volume_id=photo.photo_big.volume_id,
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big=True
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)
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file = await util.transfer_file_to_matrix(source.client, self.default_mxid_intent, loc)
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if file:
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self.photo_id = photo_id
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try:
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await self.default_mxid_intent.set_avatar_url(file.mxc)
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except MatrixRequestError:
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self.log.exception("Failed to set avatar")
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self.photo_id = ""
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return True
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return False
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# endregion
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# region Getters
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@classmethod
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def get(cls, tgid: TelegramID, create: bool = True) -> Optional['Puppet']:
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try:
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return cls.cache[tgid]
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except KeyError:
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pass
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puppet = DBPuppet.get_by_tgid(tgid)
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if puppet:
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return cls.from_db(puppet)
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if create:
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puppet = cls(tgid)
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puppet.db_instance.insert()
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return puppet
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return None
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@classmethod
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def get_by_mxid(cls, mxid: UserID, create: bool = True) -> Optional['Puppet']:
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tgid = cls.get_id_from_mxid(mxid)
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if tgid:
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return cls.get(tgid, create)
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return None
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@classmethod
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def get_by_custom_mxid(cls, mxid: UserID) -> Optional['Puppet']:
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if not mxid:
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raise ValueError("Matrix ID can't be empty")
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try:
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return cls.by_custom_mxid[mxid]
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except KeyError:
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pass
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puppet = DBPuppet.get_by_custom_mxid(mxid)
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if puppet:
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puppet = cls.from_db(puppet)
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return puppet
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return None
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@classmethod
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def all_with_custom_mxid(cls) -> Iterable['Puppet']:
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return (cls.by_custom_mxid[puppet.mxid]
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if puppet.custom_mxid in cls.by_custom_mxid
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else cls.from_db(puppet)
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for puppet in DBPuppet.all_with_custom_mxid())
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@classmethod
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def get_id_from_mxid(cls, mxid: UserID) -> Optional[TelegramID]:
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return cls.mxid_template.parse(mxid)
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@classmethod
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def get_mxid_from_id(cls, tgid: TelegramID) -> UserID:
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return UserID(cls.mxid_template.format_full(tgid))
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@classmethod
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def find_by_username(cls, username: str) -> Optional['Puppet']:
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if not username:
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return None
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username = username.lower()
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for _, puppet in cls.cache.items():
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if puppet.username and puppet.username.lower() == username:
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return puppet
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dbpuppet = DBPuppet.get_by_username(username)
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if dbpuppet:
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return cls.from_db(dbpuppet)
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return None
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@classmethod
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def find_by_displayname(cls, displayname: str) -> Optional['Puppet']:
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if not displayname:
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return None
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for _, puppet in cls.cache.items():
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if puppet.displayname and puppet.displayname == displayname:
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return puppet
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dbpuppet = DBPuppet.get_by_displayname(displayname)
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if dbpuppet:
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return cls.from_db(dbpuppet)
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return None
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# endregion
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def init(context: 'Context') -> Iterable[Awaitable[Any]]:
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global config
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Puppet.az, config, Puppet.loop, _ = context.core
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Puppet.mx = context.mx
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Puppet.hs_domain = config["homeserver"]["domain"]
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Puppet.mxid_template = SimpleTemplate(config["bridge.username_template"], "userid",
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prefix="@", suffix=f":{Puppet.hs_domain}", type=int)
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Puppet.displayname_template = SimpleTemplate(config["bridge.displayname_template"],
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"displayname")
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secret = config["bridge.login_shared_secret"]
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Puppet.login_shared_secret = secret.encode("utf-8") if secret else None
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Puppet.login_device_name = "Telegram Bridge"
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return (puppet.try_start() for puppet in Puppet.all_with_custom_mxid())
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