mautrix-signal/mautrix_signal/db/message.py
2022-09-20 16:31:58 +03:00

144 lines
4.9 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 __future__ import annotations
from typing import TYPE_CHECKING, ClassVar
from uuid import UUID
from attr import dataclass
import asyncpg
from mausignald.types import GroupID
from mautrix.types import EventID, RoomID
from mautrix.util.async_db import Database, Scheme
from .util import ensure_uuid
fake_db = Database.create("") 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: GroupID | 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,
str(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,
str(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 | None) -> Message | None:
if row is None:
return None
data = {**row}
chat_id = data.pop("signal_chat_id")
if data["signal_receiver"]:
chat_id = ensure_uuid(chat_id)
sender = ensure_uuid(data.pop("sender"))
return cls(signal_chat_id=chat_id, sender=sender, **data)
@classmethod
async def get_by_mxid(cls, mxid: EventID, mx_room: RoomID) -> Message | None:
q = """
SELECT mxid, mx_room, sender, timestamp, signal_chat_id, signal_receiver FROM message
WHERE mxid=$1 AND mx_room=$2
"""
return cls._from_row(await cls.db.fetchrow(q, mxid, mx_room))
@classmethod
async def get_by_signal_id(
cls,
sender: UUID,
timestamp: int,
signal_chat_id: GroupID | UUID,
signal_receiver: str = "",
) -> Message | None:
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
"""
return cls._from_row(
await cls.db.fetchrow(q, sender, timestamp, str(signal_chat_id), signal_receiver)
)
@classmethod
async def find_by_timestamps(cls, timestamps: list[int]) -> list[Message]:
if cls.db.scheme in (Scheme.POSTGRES, Scheme.COCKROACH):
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)
else:
placeholders = ", ".join("?" for _ in range(len(timestamps)))
q = f"""
SELECT mxid, mx_room, sender, timestamp, signal_chat_id, signal_receiver FROM message
WHERE timestamp IN ({placeholders})
"""
rows = await cls.db.fetch(q, *timestamps)
return [cls._from_row(row) for row in rows]
@classmethod
async def find_by_sender_timestamp(cls, sender: UUID, timestamp: int) -> Message | None:
q = """
SELECT mxid, mx_room, sender, timestamp, signal_chat_id, signal_receiver FROM message
WHERE sender=$1 AND timestamp=$2
"""
return cls._from_row(await cls.db.fetchrow(q, sender, timestamp))
@classmethod
async def get_first_before(cls, mx_room: RoomID, timestamp: int) -> Message | None:
q = """
SELECT mxid, mx_room, sender, timestamp, signal_chat_id, signal_receiver FROM message
WHERE mx_room=$1 AND timestamp <= $2
ORDER BY timestamp DESC
LIMIT 1
"""
return cls._from_row(await cls.db.fetchrow(q, mx_room, timestamp))