227 lines
8.0 KiB
Python
227 lines
8.0 KiB
Python
# mautrix-telegram - A Matrix-Telegram puppeting bridge
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# Copyright (C) 2021 Tulir Asokan
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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 __future__ import annotations
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from typing import TYPE_CHECKING, ClassVar
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from asyncpg import Record
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from attr import dataclass
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import attr
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from mautrix.types import EventID, RoomID, UserID
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from mautrix.util.async_db import Database, Scheme
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from ..types import TelegramID
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fake_db = Database.create("") if TYPE_CHECKING else None
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@dataclass
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class Message:
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db: ClassVar[Database] = fake_db
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mxid: EventID
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mx_room: RoomID
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tgid: TelegramID
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tg_space: TelegramID
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edit_index: int
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redacted: bool = False
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content_hash: bytes | None = None
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sender_mxid: UserID | None = None
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sender: TelegramID | None = None
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@classmethod
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def _from_row(cls, row: Record | None) -> Message | None:
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if row is None:
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return None
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return cls(**row)
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columns: ClassVar[str] = ", ".join(
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(
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"mxid",
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"mx_room",
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"tgid",
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"tg_space",
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"edit_index",
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"redacted",
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"content_hash",
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"sender_mxid",
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"sender",
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)
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)
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@classmethod
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async def get_all_by_tgid(cls, tgid: TelegramID, tg_space: TelegramID) -> list[Message]:
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q = f"SELECT {cls.columns} FROM message WHERE tgid=$1 AND tg_space=$2"
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rows = await cls.db.fetch(q, tgid, tg_space)
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return [cls._from_row(row) for row in rows]
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@classmethod
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async def get_one_by_tgid(
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cls, tgid: TelegramID, tg_space: TelegramID, edit_index: int = 0
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) -> Message | None:
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if edit_index < 0:
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q = (
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f"SELECT {cls.columns} FROM message WHERE tgid=$1 AND tg_space=$2 "
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f"ORDER BY edit_index DESC LIMIT 1 OFFSET {-edit_index - 1}"
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)
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row = await cls.db.fetchrow(q, tgid, tg_space)
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else:
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q = (
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f"SELECT {cls.columns} FROM message"
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" WHERE tgid=$1 AND tg_space=$2 AND edit_index=$3"
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)
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row = await cls.db.fetchrow(q, tgid, tg_space, edit_index)
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return cls._from_row(row)
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@classmethod
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async def get_first_by_tgids(
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cls, tgids: list[TelegramID], tg_space: TelegramID
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) -> list[Message]:
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if cls.db.scheme in (Scheme.POSTGRES, Scheme.COCKROACH):
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q = (
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f"SELECT {cls.columns} FROM message"
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" WHERE tgid=ANY($1) AND tg_space=$2 AND edit_index=0"
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)
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rows = await cls.db.fetch(q, tgids, tg_space)
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else:
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tgid_placeholders = ("?," * len(tgids)).rstrip(",")
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q = (
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f"SELECT {cls.columns} FROM message "
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f"WHERE tg_space=? AND edit_index=0 AND tgid IN ({tgid_placeholders})"
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)
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rows = await cls.db.fetch(q, tg_space, *tgids)
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return [cls._from_row(row) for row in rows]
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@classmethod
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async def count_spaces_by_mxid(cls, mxid: EventID, mx_room: RoomID) -> int:
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return (
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await cls.db.fetchval(
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"SELECT COUNT(tg_space) FROM message WHERE mxid=$1 AND mx_room=$2", mxid, mx_room
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)
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or 0
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)
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@classmethod
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async def find_last(cls, mx_room: RoomID, tg_space: TelegramID) -> Message | None:
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q = (
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f"SELECT {cls.columns} FROM message WHERE mx_room=$1 AND tg_space=$2 "
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f"ORDER BY tgid DESC LIMIT 1"
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)
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return cls._from_row(await cls.db.fetchrow(q, mx_room, tg_space))
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@classmethod
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async def find_first(cls, mx_room: RoomID, tg_space: TelegramID) -> Message | None:
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q = (
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f"SELECT {cls.columns} FROM message WHERE mx_room=$1 AND tg_space=$2 "
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f"ORDER BY tgid ASC LIMIT 1"
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)
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return cls._from_row(await cls.db.fetchrow(q, mx_room, tg_space))
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@classmethod
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async def delete_all(cls, mx_room: RoomID) -> None:
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await cls.db.execute("DELETE FROM message WHERE mx_room=$1", mx_room)
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@classmethod
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async def get_by_mxid(
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cls, mxid: EventID, mx_room: RoomID, tg_space: TelegramID
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) -> Message | None:
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q = f"SELECT {cls.columns} FROM message WHERE mxid=$1 AND mx_room=$2 AND tg_space=$3"
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return cls._from_row(await cls.db.fetchrow(q, mxid, mx_room, tg_space))
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@classmethod
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async def get_by_mxids(
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cls, mxids: list[EventID], mx_room: RoomID, tg_space: TelegramID
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) -> list[Message]:
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if cls.db.scheme in (Scheme.POSTGRES, Scheme.COCKROACH):
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q = (
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f"SELECT {cls.columns} FROM message"
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" WHERE mxid=ANY($1) AND mx_room=$2 AND tg_space=$3"
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)
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rows = await cls.db.fetch(q, mxids, mx_room, tg_space)
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else:
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mxid_placeholders = ("?," * len(mxids)).rstrip(",")
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q = (
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f"SELECT {cls.columns} FROM message "
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f"WHERE mx_room=? AND tg_space=? AND mxid IN ({mxid_placeholders})"
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)
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rows = await cls.db.fetch(q, mx_room, tg_space, *mxids)
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return [cls._from_row(row) for row in rows]
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@classmethod
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async def find_recent(
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cls, mx_room: RoomID, not_sender: TelegramID, limit: int = 20
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) -> list[Message]:
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q = f"""
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SELECT {cls.columns} FROM message
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WHERE mx_room=$1 AND sender<>$2
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ORDER BY tgid DESC LIMIT $3
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"""
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return [cls._from_row(row) for row in await cls.db.fetch(q, mx_room, not_sender, limit)]
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@classmethod
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async def replace_temp_mxid(cls, temp_mxid: str, mx_room: RoomID, real_mxid: EventID) -> None:
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q = "UPDATE message SET mxid=$1 WHERE mxid=$2 AND mx_room=$3"
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await cls.db.execute(q, real_mxid, temp_mxid, mx_room)
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@classmethod
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async def delete_temp_mxid(cls, temp_mxid: str, mx_room: RoomID) -> None:
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q = "DELETE FROM message WHERE mxid=$1 AND mx_room=$2"
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await cls.db.execute(q, temp_mxid, mx_room)
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@classmethod
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async def bulk_insert(cls, messages: list[Message]) -> None:
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columns = cls.columns.split(", ")
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records = [attr.astuple(message) for message in messages]
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async with cls.db.acquire() as conn, conn.transaction():
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if cls.db.scheme == Scheme.POSTGRES:
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await conn.copy_records_to_table("message", records=records, columns=columns)
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else:
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await conn.executemany(cls._insert_query, records)
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_insert_query: ClassVar[
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str
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] = """
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INSERT INTO message (mxid, mx_room, tgid, tg_space, edit_index, redacted, content_hash, sender_mxid, sender)
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VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9)
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"""
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@property
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def _values(self):
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return (
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self.mxid,
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self.mx_room,
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self.tgid,
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self.tg_space,
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self.edit_index,
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self.redacted,
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self.content_hash,
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self.sender_mxid,
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self.sender,
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)
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async def insert(self) -> None:
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await self.db.execute(self._insert_query, *self._values)
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async def delete(self) -> None:
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q = "DELETE FROM message WHERE mxid=$1 AND mx_room=$2 AND tg_space=$3"
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await self.db.execute(q, self.mxid, self.mx_room, self.tg_space)
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async def mark_redacted(self) -> None:
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self.redacted = True
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q = "UPDATE message SET redacted=true WHERE mxid=$1 AND mx_room=$2"
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await self.db.execute(q, self.mxid, self.mx_room)
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