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Support LINE users with no discoverable ID 

AKA "strangers". Should only happen to non-friends in rooms (not groups!)
This commit is contained in:
Andrew Ferrazzutti 2021-06-03 01:13:00 -04:00
parent ec14b90711
commit 9d1d6e379c
8 changed files with 204 additions and 45 deletions
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5
matrix_puppeteer_line/db/__init__.py
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@ -3,6 +3,7 @@ from mautrix.util.async_db import Database
from .upgrade import upgrade_table
from .user import User
from .puppet import Puppet
from .stranger import Stranger
from .portal import Portal
from .message import Message
from .media import Media
@ -10,8 +11,8 @@ from .receipt_reaction import ReceiptReaction
def init(db: Database) -> None:
for table in (User, Puppet, Portal, Message, Media, ReceiptReaction):
for table in (User, Puppet, Stranger, Portal, Message, Media, ReceiptReaction):
table.db = db
__all__ = ["upgrade_table", "User", "Puppet", "Portal", "Message", "Media", "ReceiptReaction"]
__all__ = ["upgrade_table", "User", "Puppet", "Stranger", "Portal", "Message", "Media", "ReceiptReaction"]

93
matrix_puppeteer_line/db/stranger.py Normal file
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@ -0,0 +1,93 @@
# 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 Optional, ClassVar, TYPE_CHECKING
from attr import dataclass
from random import randint, seed
from mautrix.util.async_db import Database
fake_db = Database("") if TYPE_CHECKING else None
@dataclass
class Stranger:
db: ClassVar[Database] = fake_db
# Optional properties are ones that should be set by Puppet
fake_mid: str
name: Optional[str] = None
avatar_path: Optional[str] = None
available: bool = False
async def insert(self) -> None:
q = ("INSERT INTO stranger (fake_mid, name, avatar_path, available) "
"VALUES ($1, $2, $3, $4)")
await self.db.execute(q, self.fake_mid, self.name, self.avatar_path, self.available)
async def update_profile_info(self) -> None:
q = ("UPDATE stranger SET name=$2, avatar_path=$3 "
"WHERE fake_mid=$1")
await self.db.execute(q, self.fake_mid, self.name, self.avatar_path)
async def make_available(self) -> None:
q = ("UPDATE stranger SET available=true "
"WHERE name=$1 AND avatar_path=$2")
await self.db.execute(q, self.name, self.avatar_path)
@classmethod
async def get_by_mid(cls, mid: str) -> Optional['Stranger']:
q = ("SELECT fake_mid, name, avatar_path, available "
"FROM stranger WHERE fake_mid=$1")
row = await cls.db.fetchrow(q, mid)
if not row:
return None
return cls(**row)
@classmethod
async def get_by_profile(cls, info: 'Participant') -> Optional['Stranger']:
q = ("SELECT fake_mid, name, avatar_path, available "
"FROM stranger WHERE name=$1 AND avatar_path=$2")
row = await cls.db.fetchrow(q, info.name, info.avatar.path if info.avatar else "")
if not row:
return None
return cls(**row)
@classmethod
async def get_any_available(cls) -> Optional['Stranger']:
q = ("SELECT fake_mid, name, avatar_path, available "
"FROM stranger WHERE available=true")
row = await cls.db.fetchrow(q)
if not row:
return None
return cls(**row)
@classmethod
async def init_available_or_new(cls) -> 'Stranger':
stranger = await cls.get_any_available()
if not stranger:
while True:
fake_mid = "_STRANGER_"
for _ in range(32):
fake_mid += f"{randint(0,15):x}"
if await cls.get_by_mid(fake_mid) != None:
# Extremely unlikely event of a randomly-generated ID colliding with another.
# If it happens, must be not that unlikely after all, so pick a new seed.
seed()
else:
stranger = cls(fake_mid)
break
return stranger

16
matrix_puppeteer_line/db/upgrade.py
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@ -113,3 +113,19 @@ async def upgrade_deduplicate_blob(conn: Connection) -> None:
ADD COLUMN IF NOT EXISTS file_name TEXT,
ADD COLUMN IF NOT EXISTS size INTEGER
""")
@upgrade_table.register(description="Strangers")
async def upgrade_strangers(conn: Connection) -> None:
await conn.execute("""
CREATE TABLE IF NOT EXISTS stranger (
fake_mid TEXT NOT NULL UNIQUE,
name TEXT NOT NULL,
avatar_path TEXT NOT NULL,
available BOOLEAN NOT NULL DEFAULT false,
PRIMARY KEY (name, avatar_path),
FOREIGN KEY (fake_mid)
REFERENCES puppet (mid)
ON DELETE CASCADE
)""")

71
matrix_puppeteer_line/portal.py
View File

@ -205,29 +205,34 @@ class Portal(DBPortal, BasePortal):
intent = None
return intent
async def handle_remote_message(self, source: 'u.User', sender: Optional['p.Puppet'],
evt: Message) -> None:
async def handle_remote_message(self, source: 'u.User', evt: Message) -> None:
if await DBMessage.get_by_mid(evt.id):
self.log.debug(f"Ignoring duplicate message {evt.id}")
return
if evt.is_outgoing:
if source.intent:
sender = None
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
sender = p.Puppet.get_by_mid(evt.sender.id) if not self.is_direct else None
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
sender = await p.Puppet.get_by_mid(self.other_user if self.is_direct else evt.sender.id)
# TODO Respond to name/avatar changes of users in a DM
if not self.is_direct:
if sender:
await sender.update_info(evt.sender, source.client)
else:
self.log.warning(f"Could not find ID of LINE user who sent event {evt.id}")
sender = await p.Puppet.get_by_profile(evt.sender, source.client)
intent = sender.intent
intent.ensure_joined(self.mxid)
if evt.image and evt.image.url:
if not evt.image.is_sticker or self.config["bridge.receive_stickers"]:
@ -318,6 +323,9 @@ class Portal(DBPortal, BasePortal):
format=Format.HTML if msg_html else None,
body=msg_text, formatted_body=msg_html)
event_id = await self._send_message(intent, content, timestamp=evt.timestamp)
# TODO Joins/leaves/invites/rejects, which are sent as LINE message events after all!
# Also keep track of strangers who leave / get blocked / become friends
# (maybe not here for all of that)
else:
content = TextMessageEventContent(
msgtype=MessageType.NOTICE,
@ -349,11 +357,13 @@ class Portal(DBPortal, BasePortal):
if reaction:
await self.main_intent.redact(self.mxid, reaction.mxid)
await reaction.delete()
# If there are as many receipts as there are chat participants, then everyone
# must have read the message, so send real read receipts from each puppet.
# TODO Not just -1 if there are multiple _OWN_ puppets...
if receipt_count == len(self._last_participant_update) - 1:
for participant in filter(lambda participant: not p.Puppet.is_mid_for_own_puppet(participant), self._last_participant_update):
puppet = await p.Puppet.get_by_mid(participant)
await puppet.intent.send_receipt(self.mxid, event_id)
for mid in filter(lambda mid: not p.Puppet.is_mid_for_own_puppet(mid), self._last_participant_update):
intent = (await p.Puppet.get_by_mid(mid)).intent
await intent.send_receipt(self.mxid, event_id)
else:
# TODO Translatable string for "Read by"
reaction_mxid = await self.main_intent.react(self.mxid, event_id, f"(Read by {receipt_count})")
@ -418,8 +428,13 @@ class Portal(DBPortal, BasePortal):
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)
# REMINDER: multi-user chats include your own LINE user in the participant list
if participant.id != None:
puppet = await p.Puppet.get_by_mid(participant.id, client)
await puppet.update_info(participant, client)
else:
self.log.warning(f"Could not find ID of LINE user {participant.name}")
puppet = await p.Puppet.get_by_profile(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)")
@ -480,7 +495,12 @@ class Portal(DBPortal, BasePortal):
return
# Store the current member list to prevent unnecessary updates
current_members = {participant.id for participant in participants}
current_members = set()
for participant in participants:
current_members.add(
participant.id if participant.id != None else \
(await p.Puppet.get_by_profile(participant)).mid)
if current_members == self._last_participant_update:
self.log.trace("Not updating participants: list matches cached list")
return
@ -495,7 +515,7 @@ class Portal(DBPortal, BasePortal):
for participant in participants:
if forbid_own_puppets and p.Puppet.is_mid_for_own_puppet(participant.id):
continue
intent = (await p.Puppet.get_by_mid(participant.id)).intent
intent = (await p.Puppet.get_by_sender(participant)).intent
await intent.ensure_joined(self.mxid)
print(current_members)
@ -536,15 +556,8 @@ class Portal(DBPortal, BasePortal):
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)
await self.handle_remote_message(source, evt)
self.log.info("Backfilled %d messages through %s", len(messages), source.mxid)
@property
@ -680,10 +693,8 @@ class Portal(DBPortal, BasePortal):
self.by_mxid[self.mxid] = self
await self.backfill(source)
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.
# TODO Joins and leaves are (usually) shown after all, so track them properly.
# In the meantime, just check the participants list after backfilling.
await self._update_participants(info.participants)
return self.mxid

35
matrix_puppeteer_line/puppet.py
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@ -19,7 +19,7 @@ from mautrix.bridge import BasePuppet
from mautrix.types import UserID, ContentURI
from mautrix.util.simple_template import SimpleTemplate
from .db import Puppet as DBPuppet
from .db import Puppet as DBPuppet, Stranger
from .config import Config
from .rpc import Participant, Client, PathImage
from . import user as u
@ -141,6 +141,9 @@ class Puppet(DBPuppet, BasePuppet):
@classmethod
async def get_by_mid(cls, mid: str, create: bool = True) -> Optional['Puppet']:
if mid is None:
return None
# TODO Might need to parse a real id from "_OWN"
try:
return cls.by_mid[mid]
@ -160,10 +163,38 @@ class Puppet(DBPuppet, BasePuppet):
return None
@classmethod
async def get_by_profile(cls, info: Participant, client: Optional[Client] = None) -> 'Puppet':
stranger = await Stranger.get_by_profile(info)
if not stranger:
stranger = await Stranger.init_available_or_new()
puppet = cls(stranger.fake_mid)
# NOTE An update will insert anyways, so just do it now
await puppet.insert()
await puppet.update_info(info, client)
puppet._add_to_cache()
# Get path from puppet in case it uses the URL as the path.
# But that should never happen in practice for strangers,
# which should only occur in rooms, where avatars have paths.
stranger.avatar_path = puppet.avatar_path
stranger.name = info.name
await stranger.insert()
# TODO Need a way to keep stranger name/avatar up to date,
# lest name/avatar changes get seen as another stranger.
# Also need to detect when a stranger becomes a friend.
return await cls.get_by_mid(stranger.fake_mid)
@classmethod
async def get_by_sender(cls, info: Participant, client: Optional[Client] = None) -> 'Puppet':
puppet = await cls.get_by_mid(info.id)
return puppet if puppet else await cls.get_by_profile(info, client)
# TODO When supporting multiple bridge users, this should return the user whose puppet this is
@classmethod
def is_mid_for_own_puppet(cls, mid) -> bool:
return mid.startswith("_OWN_") if mid else False
return mid and mid.startswith("_OWN_")
@classmethod
async def get_by_custom_mxid(cls, mxid: UserID) -> Optional['u.User']:

4
matrix_puppeteer_line/rpc/types.py
View File

@ -41,9 +41,9 @@ class ChatListInfo(SerializableAttrs['ChatListInfo']):
@dataclass
class Participant(SerializableAttrs['Participant']):
id: str
avatar: Optional[PathImage]
name: str
avatar: Optional[PathImage]
id: Optional[str] = None
@dataclass

3
matrix_puppeteer_line/user.py
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@ -162,12 +162,11 @@ class User(DBUser, BaseUser):
async def handle_message(self, evt: Message) -> None:
self.log.trace("Received message %s", evt)
portal = await po.Portal.get_by_chat_id(evt.chat_id, create=True)
puppet = await pu.Puppet.get_by_mid(evt.sender.id) if not portal.is_direct else None
if not portal.mxid:
await self.client.set_last_message_ids(await DBMessage.get_max_mids())
chat_info = await self.client.get_chat(evt.chat_id)
await portal.create_matrix_room(self, chat_info)
await portal.handle_remote_message(self, puppet, evt)
await portal.handle_remote_message(self, evt)
async def handle_receipt(self, receipt: Receipt) -> None:
self.log.trace(f"Received receipt for chat {receipt.chat_id}")

12
puppet/src/contentscript.js
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@ -238,10 +238,18 @@ class MautrixController {
sender.id = this.getUserIdFromFriendsList(sender.name)
// Group members aren't necessarily friends,
// but the participant list includes their ID.
// ROOMS DO NOT!! Ugh.
if (!sender.id) {
const participantsList = document.querySelector(participantsListSelector)
imgElement = participantsList.querySelector(`img[alt='${sender.name}'`)
sender.id = imgElement.parentElement.parentElement.getAttribute("data-mid")
// Groups use a participant's name as the alt text of their avatar image,
// but rooms do not...ARGH! But they both use a dedicated element for it.
const participantNameElement =
Array.from(participantsList.querySelectorAll(`.mdRGT13Ttl`))
.find(e => e.innerText == sender.name)
if (participantNameElement) {
imgElement = participantNameElement.previousElementSibling.firstElementChild
sender.id = imgElement?.parentElement.parentElement.getAttribute("data-mid")
}
} else {
imgElement = element.querySelector(".mdRGT07Img > img")
}