553 lines
24 KiB
Python
553 lines
24 KiB
Python
# matrix-puppeteer-line - A very hacky Matrix-LINE bridge based on running LINE's Chrome extension in Puppeteer
|
|
# Copyright (C) 2020-2021 Tulir Asokan, Andrew Ferrazzutti
|
|
#
|
|
# This program is free software: you can redistribute it and/or modify
|
|
# it under the terms of the GNU Affero General Public License as published by
|
|
# the Free Software Foundation, either version 3 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU Affero General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU Affero General Public License
|
|
# along with this program. If not, see <https://www.gnu.org/licenses/>.
|
|
from typing import Dict, Optional, List, Set, Any, AsyncGenerator, NamedTuple, TYPE_CHECKING, cast
|
|
import mimetypes
|
|
import asyncio
|
|
|
|
import magic
|
|
|
|
from mautrix.appservice import AppService, IntentAPI
|
|
from mautrix.bridge import BasePortal, NotificationDisabler
|
|
from mautrix.types import (EventID, MessageEventContent, RoomID, EventType, MessageType,
|
|
TextMessageEventContent, MediaMessageEventContent, Membership,
|
|
ContentURI, EncryptedFile)
|
|
from mautrix.errors import MatrixError
|
|
from mautrix.util.simple_lock import SimpleLock
|
|
from mautrix.util.network_retry import call_with_net_retry
|
|
|
|
from .db import Portal as DBPortal, Message as DBMessage
|
|
from .config import Config
|
|
from .rpc import ChatInfo, Participant, Message, Client, PathImage
|
|
from . import user as u, puppet as p, matrix as m
|
|
|
|
if TYPE_CHECKING:
|
|
from .__main__ import MessagesBridge
|
|
|
|
try:
|
|
from mautrix.crypto.attachments import encrypt_attachment, decrypt_attachment
|
|
except ImportError:
|
|
encrypt_attachment = decrypt_attachment = None
|
|
|
|
StateBridge = EventType.find("m.bridge", EventType.Class.STATE)
|
|
StateHalfShotBridge = EventType.find("uk.half-shot.bridge", EventType.Class.STATE)
|
|
ReuploadedMediaInfo = NamedTuple('ReuploadedMediaInfo', mxc=Optional[ContentURI],
|
|
decryption_info=Optional[EncryptedFile],
|
|
mime_type=str, file_name=str, size=int)
|
|
|
|
|
|
class Portal(DBPortal, BasePortal):
|
|
invite_own_puppet_to_pm: bool = False
|
|
by_mxid: Dict[RoomID, 'Portal'] = {}
|
|
by_chat_id: Dict[int, 'Portal'] = {}
|
|
config: Config
|
|
matrix: 'm.MatrixHandler'
|
|
az: AppService
|
|
|
|
_main_intent: Optional[IntentAPI]
|
|
_create_room_lock: asyncio.Lock
|
|
backfill_lock: SimpleLock
|
|
_last_participant_update: Set[str]
|
|
|
|
def __init__(self, chat_id: int, other_user: Optional[str] = None,
|
|
mxid: Optional[RoomID] = None, name: Optional[str] = None,
|
|
icon_path: Optional[str] = None, icon_mxc: Optional[ContentURI] = None,
|
|
encrypted: bool = False) -> None:
|
|
super().__init__(chat_id, other_user, mxid, name, icon_path, icon_mxc, encrypted)
|
|
self._create_room_lock = asyncio.Lock()
|
|
self.log = self.log.getChild(str(chat_id))
|
|
|
|
self.backfill_lock = SimpleLock("Waiting for backfilling to finish before handling %s",
|
|
log=self.log)
|
|
self._main_intent = None
|
|
self._reaction_lock = asyncio.Lock()
|
|
self._last_participant_update = set()
|
|
|
|
@property
|
|
def is_direct(self) -> bool:
|
|
return self.chat_id[0] == "u"
|
|
|
|
@property
|
|
def is_group(self) -> bool:
|
|
return self.chat_id[0] == "c"
|
|
|
|
@property
|
|
def is_room(self) -> bool:
|
|
return self.chat_id[0] == "r"
|
|
|
|
@property
|
|
def main_intent(self) -> IntentAPI:
|
|
if not self._main_intent:
|
|
raise ValueError("Portal must be postinit()ed before main_intent can be used")
|
|
return self._main_intent
|
|
|
|
@classmethod
|
|
def init_cls(cls, bridge: 'MessagesBridge') -> None:
|
|
cls.config = bridge.config
|
|
cls.matrix = bridge.matrix
|
|
cls.az = bridge.az
|
|
cls.loop = bridge.loop
|
|
cls.bridge = bridge
|
|
cls.invite_own_puppet_to_pm = cls.config["bridge.invite_own_puppet_to_pm"]
|
|
NotificationDisabler.puppet_cls = p.Puppet
|
|
NotificationDisabler.config_enabled = cls.config["bridge.backfill.disable_notifications"]
|
|
|
|
async def _send_delivery_receipt(self, event_id: EventID) -> None:
|
|
if event_id and self.config["bridge.delivery_receipts"]:
|
|
try:
|
|
await self.az.intent.mark_read(self.mxid, event_id)
|
|
except Exception:
|
|
self.log.exception("Failed to send delivery receipt for %s", event_id)
|
|
|
|
async def handle_matrix_message(self, sender: 'u.User', message: MessageEventContent,
|
|
event_id: EventID) -> None:
|
|
if not sender.client:
|
|
self.log.debug(f"Ignoring message {event_id} as user is not connected")
|
|
return
|
|
elif ((message.get(self.bridge.real_user_content_key,
|
|
False) and await p.Puppet.get_by_custom_mxid(sender.mxid))):
|
|
self.log.debug(f"Ignoring puppet-sent message by confirmed puppet user {sender.mxid}")
|
|
return
|
|
# TODO deduplication of outgoing messages
|
|
text = message.body
|
|
media_id = None
|
|
if message.msgtype == MessageType.EMOTE:
|
|
text = f"/me {text}"
|
|
elif message.msgtype.is_media:
|
|
# if message.file and decrypt_attachment:
|
|
# data = await self.main_intent.download_media(message.file.url)
|
|
# data = decrypt_attachment(data, message.file.key.key,
|
|
# message.file.hashes.get("sha256"), message.file.iv)
|
|
# else:
|
|
# data = await self.main_intent.download_media(message.url)
|
|
# mime_type = message.info.mimetype or magic.from_buffer(data, mime=True)
|
|
# TODO media
|
|
return
|
|
message_id = await sender.client.send(self.chat_id, text)
|
|
# TODO Handle message-send timeouts better
|
|
if message_id != -1:
|
|
msg = DBMessage(mxid=event_id, mx_room=self.mxid, mid=message_id, chat_id=self.chat_id)
|
|
await msg.insert()
|
|
await self._send_delivery_receipt(event_id)
|
|
self.log.debug(f"Handled Matrix message {event_id} -> {message_id}")
|
|
else:
|
|
self.log.warning(f"Handled Matrix message {event_id} -> {message_id}")
|
|
|
|
async def handle_matrix_leave(self, user: 'u.User') -> None:
|
|
if self.is_direct:
|
|
self.log.info(f"{user.mxid} left private chat portal with {self.other_user}, "
|
|
f"cleaning up and deleting...")
|
|
await self.cleanup_and_delete()
|
|
else:
|
|
self.log.debug(f"{user.mxid} left portal to {self.chat_id}")
|
|
# TODO cleanup if empty
|
|
|
|
async def _bridge_own_message_pm(self, source: 'u.User', sender: Optional['p.Puppet'], mid: str,
|
|
invite: bool = True) -> Optional[IntentAPI]:
|
|
# Use bridge bot as puppet for own user when puppet for own user is unavailable
|
|
# TODO Use own LINE puppet instead, if it's available
|
|
intent = sender.intent if sender else self.az.intent
|
|
if self.is_direct and (sender is None or sender.mid == source.mid and not sender.is_real_user):
|
|
if self.invite_own_puppet_to_pm and invite:
|
|
await self.main_intent.invite_user(self.mxid, intent.mxid)
|
|
elif await self.az.state_store.get_membership(self.mxid,
|
|
intent.mxid) != Membership.JOIN:
|
|
self.log.warning(f"Ignoring own {mid} in private chat because own puppet is not in"
|
|
" room.")
|
|
intent = None
|
|
return intent
|
|
|
|
async def handle_remote_message(self, source: 'u.User', sender: Optional['p.Puppet'],
|
|
evt: Message) -> None:
|
|
if evt.is_outgoing:
|
|
if source.intent:
|
|
intent = source.intent
|
|
else:
|
|
if not self.invite_own_puppet_to_pm:
|
|
self.log.warning(f"Ignoring message {evt.id}: double puppeting isn't enabled")
|
|
return
|
|
intent = await self._bridge_own_message_pm(source, sender, f"message {evt.id}")
|
|
if not intent:
|
|
return
|
|
elif self.other_user:
|
|
intent = (await p.Puppet.get_by_mid(self.other_user)).intent
|
|
elif sender:
|
|
intent = sender.intent
|
|
else:
|
|
self.log.warning(f"Ignoring message {evt.id}: sender puppet is unavailable")
|
|
return
|
|
|
|
if await DBMessage.get_by_mid(evt.id):
|
|
self.log.debug(f"Ignoring duplicate message {evt.id}")
|
|
return
|
|
|
|
event_id = None
|
|
if evt.image:
|
|
content = await self._handle_remote_photo(source, intent, evt)
|
|
if content:
|
|
event_id = await self._send_message(intent, content, timestamp=evt.timestamp)
|
|
if evt.text and not evt.text.isspace():
|
|
content = TextMessageEventContent(msgtype=MessageType.TEXT, body=evt.text)
|
|
event_id = await self._send_message(intent, content, timestamp=evt.timestamp)
|
|
if event_id:
|
|
msg = DBMessage(mxid=event_id, mx_room=self.mxid, mid=evt.id, chat_id=self.chat_id)
|
|
await msg.insert()
|
|
await self._send_delivery_receipt(event_id)
|
|
self.log.debug(f"Handled remote message {evt.id} -> {event_id}")
|
|
|
|
async def _handle_remote_photo(self, source: 'u.User', intent: IntentAPI, message: Message
|
|
) -> Optional[MediaMessageEventContent]:
|
|
# TODO
|
|
pass
|
|
|
|
async def _reupload_remote_media(self, data: bytes, intent: IntentAPI) -> ReuploadedMediaInfo:
|
|
upload_mime_type = mime_type = magic.from_buffer(data, mime=True)
|
|
upload_file_name = file_name = f"image{mimetypes.guess_extension(mime_type)}"
|
|
decryption_info = None
|
|
if self.encrypted and encrypt_attachment:
|
|
data, decryption_info = encrypt_attachment(data)
|
|
upload_mime_type = "application/octet-stream"
|
|
upload_file_name = None
|
|
|
|
mxc = await call_with_net_retry(intent.upload_media, data, mime_type=upload_mime_type,
|
|
filename=upload_file_name, _action="upload media")
|
|
|
|
if decryption_info:
|
|
decryption_info.url = mxc
|
|
mxc = None
|
|
|
|
return ReuploadedMediaInfo(mxc, decryption_info, mime_type, file_name, len(data))
|
|
|
|
async def update_info(self, conv: ChatInfo, client: Optional[Client]) -> None:
|
|
if self.is_direct:
|
|
self.other_user = conv.participants[0].id
|
|
if self._main_intent is self.az.intent:
|
|
self._main_intent = (await p.Puppet.get_by_mid(self.other_user)).intent
|
|
for participant in conv.participants:
|
|
puppet = await p.Puppet.get_by_mid(participant.id)
|
|
await puppet.update_info(participant, client)
|
|
# TODO Consider setting no room name for non-group chats.
|
|
# But then the LINE bot itself may appear in the title...
|
|
changed = await self._update_name(f"{conv.name} (LINE)")
|
|
if client:
|
|
if not self.is_direct:
|
|
changed = await self._update_icon(conv.icon, client) or changed
|
|
elif puppet and puppet.avatar_mxc != self.icon_mxc:
|
|
changed = True
|
|
self.icon_mxc = puppet.avatar_mxc
|
|
if self.mxid:
|
|
await self.main_intent.set_room_avatar(self.mxid, self.icon_mxc)
|
|
if changed:
|
|
await self.update_bridge_info()
|
|
await self.update()
|
|
# NOTE Don't call this yet, lest puppets join earlier than
|
|
# when their user actually joined or sent a message.
|
|
#await self._update_participants(conv.participants)
|
|
|
|
async def _update_name(self, name: str) -> bool:
|
|
if self.name != name:
|
|
self.name = name
|
|
if self.mxid:
|
|
await self.main_intent.set_room_name(self.mxid, name)
|
|
return True
|
|
return False
|
|
|
|
async def _update_icon(self, icon: Optional[PathImage], client: Client) -> bool:
|
|
icon_path = icon.path if icon else None
|
|
if icon_path != self.icon_path:
|
|
self.icon_path = icon_path
|
|
if icon and icon.url:
|
|
resp = await client.read_image(icon.url)
|
|
self.icon_mxc = await self.main_intent.upload_media(resp.data, mime_type=resp.mime)
|
|
else:
|
|
self.icon_mxc = ContentURI("")
|
|
if self.mxid:
|
|
await self.main_intent.set_room_avatar(self.mxid, self.icon_mxc)
|
|
return True
|
|
return False
|
|
|
|
async def _update_participants(self, participants: List[Participant]) -> None:
|
|
if not self.mxid:
|
|
return
|
|
|
|
# Store the current member list to prevent unnecessary updates
|
|
current_members = {participant.id for participant in participants}
|
|
if current_members == self._last_participant_update:
|
|
self.log.trace("Not updating participants: list matches cached list")
|
|
return
|
|
self._last_participant_update = current_members
|
|
|
|
# Make sure puppets who should be here are here
|
|
for participant in participants:
|
|
puppet = await p.Puppet.get_by_mid(participant.id)
|
|
await puppet.intent.ensure_joined(self.mxid)
|
|
|
|
print(current_members)
|
|
|
|
# Kick puppets who shouldn't be here
|
|
for user_id in await self.main_intent.get_room_members(self.mxid):
|
|
if user_id == self.az.bot_mxid:
|
|
continue
|
|
mid = p.Puppet.get_id_from_mxid(user_id)
|
|
if mid and mid not in current_members:
|
|
print(mid)
|
|
await self.main_intent.kick_user(self.mxid, user_id,
|
|
reason="User had left this chat")
|
|
|
|
async def backfill(self, source: 'u.User') -> None:
|
|
try:
|
|
with self.backfill_lock:
|
|
await self._backfill(source)
|
|
except Exception:
|
|
self.log.exception("Failed to backfill portal")
|
|
|
|
async def _backfill(self, source: 'u.User') -> None:
|
|
self.log.debug("Backfilling history through %s", source.mxid)
|
|
|
|
max_mid = await DBMessage.get_max_mid(self.mxid) or 0
|
|
messages = [msg for msg in await source.client.get_messages(self.chat_id)
|
|
if msg.id > max_mid]
|
|
|
|
if not messages:
|
|
self.log.debug("Didn't get any entries from server")
|
|
return
|
|
|
|
self.log.debug("Got %d messages from server", len(messages))
|
|
async with NotificationDisabler(self.mxid, source):
|
|
# Member joins/leaves are not shown in chat history.
|
|
# Best we can do is have a puppet join if its user had sent a message.
|
|
members_known = set(await self.main_intent.get_room_members(self.mxid)) if not self.is_direct else None
|
|
for evt in messages:
|
|
puppet = await p.Puppet.get_by_mid(evt.sender.id) if not self.is_direct else None
|
|
if puppet and evt.sender.id not in members_known:
|
|
await puppet.update_info(evt.sender, source.client)
|
|
members_known.add(evt.sender.id)
|
|
await self.handle_remote_message(source, puppet, evt)
|
|
self.log.info("Backfilled %d messages through %s", len(messages), source.mxid)
|
|
|
|
@property
|
|
def bridge_info_state_key(self) -> str:
|
|
return f"net.maunium.line://line/{self.chat_id}"
|
|
|
|
@property
|
|
def bridge_info(self) -> Dict[str, Any]:
|
|
return {
|
|
"bridgebot": self.az.bot_mxid,
|
|
"creator": self.main_intent.mxid,
|
|
"protocol": {
|
|
"id": "line",
|
|
"displayname": "LINE",
|
|
"avatar_url": self.config["appservice.bot_avatar"],
|
|
},
|
|
"channel": {
|
|
"id": self.chat_id,
|
|
"displayname": self.name,
|
|
}
|
|
}
|
|
|
|
async def update_bridge_info(self) -> None:
|
|
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,
|
|
# },
|
|
# "events": {},
|
|
# "events_default": 100,
|
|
# "state_default": 50,
|
|
# "invite": 50,
|
|
# "redact": 0
|
|
# }
|
|
#})
|
|
|
|
# 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.name_set = False
|
|
self.icon_set = False
|
|
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
|