forked from fair/matrix-puppeteer-line
629 lines
27 KiB
Python
629 lines
27 KiB
Python
# matrix-puppeteer-line - A very hacky Matrix-LINE bridge based on running LINE's Chrome extension in Puppeteer
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# Copyright (C) 2020-2021 Tulir Asokan, Andrew Ferrazzutti
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#
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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 Dict, Optional, List, Set, Any, AsyncGenerator, NamedTuple, TYPE_CHECKING, cast
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from asyncpg.exceptions import UniqueViolationError
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from html.parser import HTMLParser
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import mimetypes
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import asyncio
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import magic
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from random import randint
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from os import remove
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from mautrix.appservice import AppService, IntentAPI
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from mautrix.bridge import BasePortal, NotificationDisabler
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from mautrix.types import (EventID, MessageEventContent, RoomID, EventType, MessageType,
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TextMessageEventContent, MediaMessageEventContent, Membership, Format,
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ContentURI, EncryptedFile, ImageInfo,
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RelatesTo, RelationType)
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from mautrix.errors import MatrixError
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from mautrix.util.simple_lock import SimpleLock
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from mautrix.util.network_retry import call_with_net_retry
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from .db import Portal as DBPortal, Message as DBMessage
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from .config import Config
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from .rpc import ChatInfo, Participant, Message, Client, PathImage
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from . import user as u, puppet as p, matrix as m
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if TYPE_CHECKING:
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from .__main__ import MessagesBridge
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try:
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from mautrix.crypto.attachments import encrypt_attachment, decrypt_attachment
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except ImportError:
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encrypt_attachment = decrypt_attachment = None
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StateBridge = EventType.find("m.bridge", EventType.Class.STATE)
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StateHalfShotBridge = EventType.find("uk.half-shot.bridge", EventType.Class.STATE)
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ReuploadedMediaInfo = NamedTuple('ReuploadedMediaInfo', mxc=Optional[ContentURI],
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decryption_info=Optional[EncryptedFile],
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mime_type=str, file_name=str, size=int)
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class Portal(DBPortal, BasePortal):
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invite_own_puppet_to_pm: bool = False
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by_mxid: Dict[RoomID, 'Portal'] = {}
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by_chat_id: Dict[int, 'Portal'] = {}
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config: Config
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matrix: 'm.MatrixHandler'
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az: AppService
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_main_intent: Optional[IntentAPI]
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_create_room_lock: asyncio.Lock
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backfill_lock: SimpleLock
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_last_participant_update: Set[str]
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def __init__(self, chat_id: int, other_user: Optional[str] = None,
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mxid: Optional[RoomID] = None, name: Optional[str] = None,
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icon_path: Optional[str] = None, icon_mxc: Optional[ContentURI] = None,
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encrypted: bool = False) -> None:
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super().__init__(chat_id, other_user, mxid, name, icon_path, icon_mxc, encrypted)
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self._create_room_lock = asyncio.Lock()
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self.log = self.log.getChild(str(chat_id))
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self.backfill_lock = SimpleLock("Waiting for backfilling to finish before handling %s",
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log=self.log)
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self._main_intent = None
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self._reaction_lock = asyncio.Lock()
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self._last_participant_update = set()
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@property
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def is_direct(self) -> bool:
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return self.chat_id[0] == "u"
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@property
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def is_group(self) -> bool:
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return self.chat_id[0] == "c"
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@property
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def is_room(self) -> bool:
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return self.chat_id[0] == "r"
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@property
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def main_intent(self) -> IntentAPI:
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if not self._main_intent:
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raise ValueError("Portal must be postinit()ed before main_intent can be used")
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return self._main_intent
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@classmethod
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def init_cls(cls, bridge: 'MessagesBridge') -> None:
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cls.config = bridge.config
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cls.matrix = bridge.matrix
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cls.az = bridge.az
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cls.loop = bridge.loop
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cls.bridge = bridge
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cls.invite_own_puppet_to_pm = cls.config["bridge.invite_own_puppet_to_pm"]
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NotificationDisabler.puppet_cls = p.Puppet
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NotificationDisabler.config_enabled = cls.config["bridge.backfill.disable_notifications"]
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async def _send_delivery_receipt(self, event_id: EventID) -> None:
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if event_id and self.config["bridge.delivery_receipts"]:
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try:
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await self.az.intent.mark_read(self.mxid, event_id)
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except Exception:
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self.log.exception("Failed to send delivery receipt for %s", event_id)
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async def handle_matrix_message(self, sender: 'u.User', message: MessageEventContent,
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event_id: EventID) -> None:
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if not sender.client:
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self.log.debug(f"Ignoring message {event_id} as user is not connected")
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return
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elif ((message.get(self.bridge.real_user_content_key,
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False) and await p.Puppet.get_by_custom_mxid(sender.mxid))):
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self.log.debug(f"Ignoring puppet-sent message by confirmed puppet user {sender.mxid}")
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return
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# TODO deduplication of outgoing messages
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text = message.body
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if message.msgtype.is_text:
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if message.msgtype == MessageType.EMOTE:
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text = f"/me {text}"
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message_id = await sender.client.send(self.chat_id, text)
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elif message.msgtype.is_media:
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if message.file and decrypt_attachment:
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data = await self.main_intent.download_media(message.file.url)
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data = decrypt_attachment(data, message.file.key.key,
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message.file.hashes.get("sha256"), message.file.iv)
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else:
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data = await self.main_intent.download_media(message.url)
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mime_type = message.info.mimetype or magic.from_buffer(data, mime=True)
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# TODO Set path from config
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file_path = f"/dev/shm/file_{randint(0,1000)}{mimetypes.guess_extension(mime_type)}"
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temp_file = open(file_path, 'wb')
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temp_file.write(data)
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message_id = await sender.client.send_file(self.chat_id, file_path)
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remove(file_path)
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msg = None
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if message_id != -1:
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try:
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msg = DBMessage(mxid=event_id, mx_room=self.mxid, mid=message_id, chat_id=self.chat_id)
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await msg.insert()
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await self._send_delivery_receipt(event_id)
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self.log.debug(f"Handled Matrix message {event_id} -> {message_id}")
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except UniqueViolationError as e:
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self.log.warning(f"Failed to handle Matrix message {event_id} -> {message_id}: {e}")
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if not msg:
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await self.main_intent.send_notice(
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self.mxid,
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"Posting this message to LINE may have failed.",
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relates_to=RelatesTo(rel_type=RelationType.REPLY, event_id=event_id))
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self.log.warning(f"Handled Matrix message {event_id} -> {message_id}")
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async def handle_matrix_leave(self, user: 'u.User') -> None:
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if self.is_direct:
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self.log.info(f"{user.mxid} left private chat portal with {self.other_user}, "
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f"cleaning up and deleting...")
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await self.cleanup_and_delete()
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else:
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self.log.debug(f"{user.mxid} left portal to {self.chat_id}")
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# TODO cleanup if empty
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async def _bridge_own_message_pm(self, source: 'u.User', sender: Optional['p.Puppet'], mid: str,
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invite: bool = True) -> Optional[IntentAPI]:
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# Use bridge bot as puppet for own user when puppet for own user is unavailable
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# TODO Use own LINE puppet instead, if it's available
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intent = sender.intent if sender else self.az.intent
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if self.is_direct and (sender is None or sender.mid == source.mid and not sender.is_real_user):
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if self.invite_own_puppet_to_pm and invite:
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await self.main_intent.invite_user(self.mxid, intent.mxid)
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elif await self.az.state_store.get_membership(self.mxid,
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intent.mxid) != Membership.JOIN:
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self.log.warning(f"Ignoring own {mid} in private chat because own puppet is not in"
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" room.")
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intent = None
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return intent
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async def handle_remote_message(self, source: 'u.User', sender: Optional['p.Puppet'],
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evt: Message) -> None:
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if evt.is_outgoing:
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if source.intent:
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intent = source.intent
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else:
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if not self.invite_own_puppet_to_pm:
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self.log.warning(f"Ignoring message {evt.id}: double puppeting isn't enabled")
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return
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intent = await self._bridge_own_message_pm(source, sender, f"message {evt.id}")
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if not intent:
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return
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elif self.other_user:
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intent = (await p.Puppet.get_by_mid(self.other_user)).intent
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elif sender:
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intent = sender.intent
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else:
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self.log.warning(f"Ignoring message {evt.id}: sender puppet is unavailable")
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return
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if await DBMessage.get_by_mid(evt.id):
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self.log.debug(f"Ignoring duplicate message {evt.id}")
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return
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event_id = None
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if evt.image_url:
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content = await self._handle_remote_photo(source, intent, evt)
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event_id = await self._send_message(intent, content, timestamp=evt.timestamp)
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elif evt.html and not evt.html.isspace():
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chunks = []
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def handle_data(data):
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nonlocal chunks
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chunks.append({"type": "data", "data": data})
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def handle_starttag(tag, attrs):
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if tag == "img":
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obj = {"type": tag}
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for attr in attrs:
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obj[attr[0]] = attr[1]
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nonlocal chunks
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chunks.append(obj)
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parser = HTMLParser()
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parser.handle_data = handle_data
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parser.handle_starttag = handle_starttag
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parser.feed(evt.html)
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msg_text = ""
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msg_html = None
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for chunk in chunks:
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ctype = chunk["type"]
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if ctype == "data":
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msg_text += chunk["data"]
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if msg_html:
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msg_html += chunk["data"]
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elif ctype == "img":
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if not msg_html:
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msg_html = msg_text
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cclass = chunk["class"]
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if cclass == "emojione":
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alt = chunk["alt"]
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else:
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alt = f':{"?" if "alt" not in chunk else "".join(filter(lambda char: char.isprintable(), chunk["alt"]))}:'
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msg_text += alt
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# TODO Make a standalone function for this, and cache mxc in DB
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# ID is some combination of data-stickon-pkg-cd, data-stickon-stk-cd, src
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resp = await source.client.read_image(chunk["src"])
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media_info = await self._reupload_remote_media(resp.data, intent, resp.mime)
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msg_html += f'<img data-mx-emoticon src="{media_info.mxc}" alt="{alt}" title="{alt}" height="32">'
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content = TextMessageEventContent(
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msgtype=MessageType.TEXT,
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format=Format.HTML if msg_html else None,
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body=msg_text, formatted_body=msg_html)
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event_id = await self._send_message(intent, content, timestamp=evt.timestamp)
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if event_id:
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msg = DBMessage(mxid=event_id, mx_room=self.mxid, mid=evt.id, chat_id=self.chat_id)
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await msg.insert()
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await self._send_delivery_receipt(event_id)
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self.log.debug(f"Handled remote message {evt.id} -> {event_id}")
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async def _handle_remote_photo(self, source: 'u.User', intent: IntentAPI, message: Message
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) -> Optional[MediaMessageEventContent]:
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resp = await source.client.read_image(message.image_url)
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media_info = await self._reupload_remote_media(resp.data, intent, resp.mime)
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return MediaMessageEventContent(url=media_info.mxc, file=media_info.decryption_info,
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msgtype=MessageType.IMAGE, body=media_info.file_name,
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info=ImageInfo(mimetype=media_info.mime_type, size=media_info.size))
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async def _reupload_remote_media(self, data: bytes, intent: IntentAPI,
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mime_type: str = None, file_name: str = None
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) -> ReuploadedMediaInfo:
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if not mime_type:
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mime_type = magic.from_buffer(data, mime=True)
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upload_mime_type = mime_type
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if not file_name:
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file_name = f"image{mimetypes.guess_extension(mime_type)}"
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upload_file_name = file_name
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decryption_info = None
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if self.encrypted and encrypt_attachment:
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data, decryption_info = encrypt_attachment(data)
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upload_mime_type = "application/octet-stream"
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upload_file_name = None
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mxc = await call_with_net_retry(intent.upload_media, data, mime_type=upload_mime_type,
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filename=upload_file_name, _action="upload media")
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if decryption_info:
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decryption_info.url = mxc
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mxc = None
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return ReuploadedMediaInfo(mxc, decryption_info, mime_type, file_name, len(data))
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async def update_info(self, conv: ChatInfo, client: Optional[Client]) -> None:
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if self.is_direct:
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self.other_user = conv.participants[0].id
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if self._main_intent is self.az.intent:
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self._main_intent = (await p.Puppet.get_by_mid(self.other_user)).intent
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for participant in conv.participants:
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puppet = await p.Puppet.get_by_mid(participant.id)
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await puppet.update_info(participant, client)
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# TODO Consider setting no room name for non-group chats.
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# But then the LINE bot itself may appear in the title...
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changed = await self._update_name(f"{conv.name} (LINE)")
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if client:
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if not self.is_direct:
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changed = await self._update_icon(conv.icon, client) or changed
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elif puppet and puppet.avatar_mxc != self.icon_mxc:
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changed = True
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self.icon_mxc = puppet.avatar_mxc
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if self.mxid:
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await self.main_intent.set_room_avatar(self.mxid, self.icon_mxc)
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if changed:
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await self.update_bridge_info()
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await self.update()
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# NOTE Don't call this yet, lest puppets join earlier than
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# when their user actually joined or sent a message.
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#await self._update_participants(conv.participants)
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async def _update_name(self, name: str) -> bool:
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if self.name != name:
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self.name = name
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if self.mxid:
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await self.main_intent.set_room_name(self.mxid, name)
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return True
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return False
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async def _update_icon(self, icon: Optional[PathImage], client: Client) -> bool:
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icon_path = icon.path if icon else None
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if icon_path != self.icon_path:
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self.icon_path = icon_path
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if icon and icon.url:
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resp = await client.read_image(icon.url)
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self.icon_mxc = await self.main_intent.upload_media(resp.data, mime_type=resp.mime)
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else:
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self.icon_mxc = ContentURI("")
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if self.mxid:
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await self.main_intent.set_room_avatar(self.mxid, self.icon_mxc)
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return True
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return False
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async def _update_participants(self, participants: List[Participant]) -> None:
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if not self.mxid:
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return
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# Store the current member list to prevent unnecessary updates
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current_members = {participant.id for participant in participants}
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if current_members == self._last_participant_update:
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self.log.trace("Not updating participants: list matches cached list")
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return
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self._last_participant_update = current_members
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# Make sure puppets who should be here are here
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for participant in participants:
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puppet = await p.Puppet.get_by_mid(participant.id)
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await puppet.intent.ensure_joined(self.mxid)
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print(current_members)
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# Kick puppets who shouldn't be here
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for user_id in await self.main_intent.get_room_members(self.mxid):
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if user_id == self.az.bot_mxid:
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continue
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mid = p.Puppet.get_id_from_mxid(user_id)
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if mid and mid not in current_members:
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print(mid)
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await self.main_intent.kick_user(self.mxid, user_id,
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reason="User had left this chat")
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async def backfill(self, source: 'u.User') -> None:
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try:
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with self.backfill_lock:
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await self._backfill(source)
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except Exception:
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self.log.exception("Failed to backfill portal")
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async def _backfill(self, source: 'u.User') -> None:
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self.log.debug("Backfilling history through %s", source.mxid)
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max_mid = await DBMessage.get_max_mid(self.mxid) or 0
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messages = [msg for msg in await source.client.get_messages(self.chat_id)
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if msg.id > max_mid]
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# TODO Confirm why sorting in Node isn't enough
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messages.sort(key=lambda message: message.id)
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if not messages:
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self.log.debug("Didn't get any entries from server")
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return
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self.log.debug("Got %d messages from server", len(messages))
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async with NotificationDisabler(self.mxid, source):
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# Member joins/leaves are not shown in chat history.
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# Best we can do is have a puppet join if its user had sent a message.
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members_known = set(await self.main_intent.get_room_members(self.mxid)) if not self.is_direct else None
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for evt in messages:
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puppet = await p.Puppet.get_by_mid(evt.sender.id) if not self.is_direct else None
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if puppet and evt.sender.id not in members_known:
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await puppet.update_info(evt.sender, source.client)
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members_known.add(evt.sender.id)
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await self.handle_remote_message(source, puppet, evt)
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self.log.info("Backfilled %d messages through %s", len(messages), source.mxid)
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@property
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def bridge_info_state_key(self) -> str:
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return f"net.maunium.line://line/{self.chat_id}"
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@property
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def bridge_info(self) -> Dict[str, Any]:
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return {
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"bridgebot": self.az.bot_mxid,
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"creator": self.main_intent.mxid,
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"protocol": {
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"id": "line",
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"displayname": "LINE",
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"avatar_url": self.config["appservice.bot_avatar"],
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},
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"channel": {
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"id": self.chat_id,
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"displayname": self.name,
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}
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}
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async def update_bridge_info(self) -> None:
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if not self.mxid:
|
|
self.log.debug("Not updating bridge info: no Matrix room created")
|
|
return
|
|
try:
|
|
self.log.debug("Updating bridge info...")
|
|
await self.main_intent.send_state_event(self.mxid, StateBridge,
|
|
self.bridge_info, self.bridge_info_state_key)
|
|
# TODO remove this once https://github.com/matrix-org/matrix-doc/pull/2346 is in spec
|
|
await self.main_intent.send_state_event(self.mxid, StateHalfShotBridge,
|
|
self.bridge_info, self.bridge_info_state_key)
|
|
except Exception:
|
|
self.log.warning("Failed to update bridge info", exc_info=True)
|
|
|
|
async def update_matrix_room(self, source: 'u.User', info: ChatInfo) -> Optional[RoomID]:
|
|
try:
|
|
await self._update_matrix_room(source, info)
|
|
except Exception:
|
|
self.log.exception("Failed to update portal")
|
|
|
|
async def create_matrix_room(self, source: 'u.User', info: ChatInfo) -> Optional[RoomID]:
|
|
if self.mxid:
|
|
await self.update_matrix_room(source, info)
|
|
return self.mxid
|
|
async with self._create_room_lock:
|
|
return await self._create_matrix_room(source, info)
|
|
|
|
async def _update_matrix_room(self, source: 'u.User', info: ChatInfo) -> None:
|
|
await self.main_intent.invite_user(self.mxid, source.mxid, check_cache=True)
|
|
puppet = await p.Puppet.get_by_custom_mxid(source.mxid)
|
|
if puppet:
|
|
await puppet.az.intent.ensure_joined(self.mxid)
|
|
|
|
await self.update_info(info, source.client)
|
|
await self.backfill(source)
|
|
await self._update_participants(info.participants)
|
|
|
|
async def _create_matrix_room(self, source: 'u.User', info: ChatInfo) -> Optional[RoomID]:
|
|
if self.mxid:
|
|
await self._update_matrix_room(source, info)
|
|
return self.mxid
|
|
await self.update_info(info, source.client)
|
|
self.log.debug("Creating Matrix room")
|
|
name: Optional[str] = None
|
|
initial_state = [{
|
|
"type": str(StateBridge),
|
|
"state_key": self.bridge_info_state_key,
|
|
"content": self.bridge_info,
|
|
}, {
|
|
# TODO remove this once https://github.com/matrix-org/matrix-doc/pull/2346 is in spec
|
|
"type": str(StateHalfShotBridge),
|
|
"state_key": self.bridge_info_state_key,
|
|
"content": self.bridge_info,
|
|
}]
|
|
invites = [source.mxid]
|
|
if self.config["bridge.encryption.default"] and self.matrix.e2ee:
|
|
self.encrypted = True
|
|
initial_state.append({
|
|
"type": str(EventType.ROOM_ENCRYPTION),
|
|
"content": {"algorithm": "m.megolm.v1.aes-sha2"},
|
|
})
|
|
if self.is_direct:
|
|
invites.append(self.az.bot_mxid)
|
|
# NOTE Set the room title even for direct chats, because
|
|
# the LINE bot itself may appear in the title otherwise.
|
|
#if self.encrypted or not self.is_direct:
|
|
name = self.name
|
|
if self.config["appservice.community_id"]:
|
|
initial_state.append({
|
|
"type": "m.room.related_groups",
|
|
"content": {"groups": [self.config["appservice.community_id"]]},
|
|
})
|
|
initial_state.append({
|
|
"type": str(EventType.ROOM_POWER_LEVELS),
|
|
"content": {
|
|
"users": {
|
|
self.az.bot_mxid: 100,
|
|
self.main_intent.mxid: 100,
|
|
}
|
|
}
|
|
})
|
|
if self.icon_mxc:
|
|
initial_state.append({
|
|
"type": str(EventType.ROOM_AVATAR),
|
|
"content": {
|
|
"url": self.icon_mxc
|
|
}
|
|
})
|
|
|
|
# We lock backfill lock here so any messages that come between the room being created
|
|
# and the initial backfill finishing wouldn't be bridged before the backfill messages.
|
|
with self.backfill_lock:
|
|
self.mxid = await self.main_intent.create_room(name=name, is_direct=self.is_direct,
|
|
initial_state=initial_state,
|
|
invitees=invites)
|
|
if not self.mxid:
|
|
raise Exception("Failed to create room: no mxid returned")
|
|
|
|
if self.encrypted and self.matrix.e2ee and self.is_direct:
|
|
try:
|
|
await self.az.intent.ensure_joined(self.mxid)
|
|
except Exception:
|
|
self.log.warning("Failed to add bridge bot "
|
|
f"to new private chat {self.mxid}")
|
|
|
|
await self.update()
|
|
self.log.debug(f"Matrix room created: {self.mxid}")
|
|
self.by_mxid[self.mxid] = self
|
|
if not self.is_direct:
|
|
# For multi-user chats, backfill before updating participants,
|
|
# to act as as a best guess of when users actually joined.
|
|
# No way to tell when a user actually left, so just check the
|
|
# participants list after backfilling.
|
|
await self.backfill(source)
|
|
await self._update_participants(info.participants)
|
|
else:
|
|
puppet = await p.Puppet.get_by_custom_mxid(source.mxid)
|
|
if puppet:
|
|
try:
|
|
await puppet.az.intent.join_room_by_id(self.mxid)
|
|
except MatrixError:
|
|
self.log.debug("Failed to join custom puppet into newly created portal",
|
|
exc_info=True)
|
|
await self.backfill(source)
|
|
|
|
return self.mxid
|
|
|
|
async def postinit(self) -> None:
|
|
self.by_chat_id[self.chat_id] = self
|
|
if self.mxid:
|
|
self.by_mxid[self.mxid] = self
|
|
if self.other_user:
|
|
self._main_intent = (await p.Puppet.get_by_mid(self.other_user)).intent
|
|
else:
|
|
self._main_intent = self.az.intent
|
|
|
|
async def delete(self) -> None:
|
|
await DBMessage.delete_all(self.mxid)
|
|
self.by_mxid.pop(self.mxid, None)
|
|
self.mxid = None
|
|
self.name = None
|
|
self.icon_path = None
|
|
self.icon_mxc = None
|
|
self.encrypted = False
|
|
await self.update()
|
|
|
|
async def save(self) -> None:
|
|
await self.update()
|
|
|
|
@classmethod
|
|
async def all_with_room(cls) -> AsyncGenerator['Portal', None]:
|
|
portals = await super().all_with_room()
|
|
portal: cls
|
|
for index, portal in enumerate(portals):
|
|
try:
|
|
yield cls.by_chat_id[portal.chat_id]
|
|
except KeyError:
|
|
await portal.postinit()
|
|
yield portal
|
|
|
|
@classmethod
|
|
async def get_by_mxid(cls, mxid: RoomID) -> Optional['Portal']:
|
|
try:
|
|
return cls.by_mxid[mxid]
|
|
except KeyError:
|
|
pass
|
|
|
|
portal = cast(cls, await super().get_by_mxid(mxid))
|
|
if portal is not None:
|
|
await portal.postinit()
|
|
return portal
|
|
|
|
return None
|
|
|
|
@classmethod
|
|
async def get_by_chat_id(cls, chat_id: int, create: bool = False) -> Optional['Portal']:
|
|
try:
|
|
return cls.by_chat_id[chat_id]
|
|
except KeyError:
|
|
pass
|
|
|
|
portal = cast(cls, await super().get_by_chat_id(chat_id))
|
|
if portal is not None:
|
|
await portal.postinit()
|
|
return portal
|
|
|
|
if create:
|
|
portal = cls(chat_id)
|
|
await portal.insert()
|
|
await portal.postinit()
|
|
return portal
|
|
|
|
return None
|