mautrix-signal/mautrix_signal/db/message.py
2020-09-28 02:03:47 +03:00

98 lines
4 KiB
Python

# mautrix-signal - A Matrix-Signal puppeting bridge
# Copyright (C) 2020 Tulir Asokan
#
# 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, Union, List, TYPE_CHECKING
from uuid import UUID
from attr import dataclass
import asyncpg
from mautrix.types import RoomID, EventID
from mautrix.util.async_db import Database
fake_db = Database("") if TYPE_CHECKING else None
@dataclass
class Message:
db: ClassVar[Database] = fake_db
mxid: EventID
mx_room: RoomID
sender: UUID
timestamp: int
signal_chat_id: Union[str, UUID]
signal_receiver: str
async def insert(self) -> None:
q = ("INSERT INTO message (mxid, mx_room, sender, timestamp, signal_chat_id,"
" signal_receiver) VALUES ($1, $2, $3, $4, $5, $6)")
await self.db.execute(q, self.mxid, self.mx_room, self.sender, self.timestamp,
self.signal_chat_id, self.signal_receiver)
async def delete(self) -> None:
q = ("DELETE FROM message WHERE sender=$1 AND timestamp=$2"
" AND signal_chat_id=$3 AND signal_receiver=$4")
await self.db.execute(q, self.sender, self.timestamp, self.signal_chat_id,
self.signal_receiver)
@classmethod
async def delete_all(cls, room_id: RoomID) -> None:
await cls.db.execute("DELETE FROM message WHERE mx_room=$1", room_id)
@classmethod
def _from_row(cls, row: asyncpg.Record) -> 'Message':
data = {**row}
if data["signal_receiver"]:
chat_id = UUID(data.pop("signal_chat_id"))
else:
chat_id = data.pop("signal_chat_id")
return cls(signal_chat_id=chat_id, **data)
@classmethod
async def get_by_mxid(cls, mxid: EventID, mx_room: RoomID) -> Optional['Message']:
q = ("SELECT mxid, mx_room, sender, timestamp, signal_chat_id, signal_receiver "
"FROM message WHERE mxid=$1 AND mx_room=$2")
row = await cls.db.fetchrow(q, mxid, mx_room)
if not row:
return None
return cls(**row)
@classmethod
async def get_by_signal_id(cls, sender: UUID, timestamp: int, signal_chat_id: Union[str, UUID],
signal_receiver: str = "") -> Optional['Message']:
q = ("SELECT mxid, mx_room, sender, timestamp, signal_chat_id, signal_receiver "
"FROM message WHERE sender=$1 AND timestamp=$2"
" AND signal_chat_id=$3 AND signal_receiver=$4")
row = await cls.db.fetchrow(q, sender, timestamp, signal_chat_id, signal_receiver)
if not row:
return None
return cls(**row)
@classmethod
async def find_by_timestamps(cls, timestamps: List[int]) -> List['Message']:
q = ("SELECT mxid, mx_room, sender, timestamp, signal_chat_id, signal_receiver "
"FROM message WHERE timestamp=ANY($1)")
rows = await cls.db.fetch(q, timestamps)
return [cls(**row) for row in rows]
@classmethod
async def find_by_sender_timestamp(cls, sender: UUID, timestamp: int) -> Optional['Message']:
q = ("SELECT mxid, mx_room, sender, timestamp, signal_chat_id, signal_receiver "
"FROM message WHERE sender=$1 AND timestamp=$2")
row = await cls.db.fetchrow(q, sender, timestamp)
if not row:
return None
return cls(**row)