112 lines
3.9 KiB
Python
112 lines
3.9 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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from mautrix.types import ContentURI, EncryptedFile
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from mautrix.util.async_db import Database, Scheme
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fake_db = Database.create("") if TYPE_CHECKING else None
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@dataclass
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class TelegramFile:
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db: ClassVar[Database] = fake_db
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id: str
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mxc: ContentURI
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mime_type: str
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was_converted: bool
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timestamp: int
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size: int | None
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width: int | None
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height: int | None
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decryption_info: EncryptedFile | None
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thumbnail: TelegramFile | None = None
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columns: ClassVar[str] = (
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"id, mxc, mime_type, was_converted, timestamp, size, width, height, thumbnail, "
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"decryption_info"
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)
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@classmethod
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def _from_row(cls, row: Record | None) -> TelegramFile | None:
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if row is None:
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return None
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data = {**row}
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data.pop("thumbnail", None)
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decryption_info = data.pop("decryption_info", None)
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return cls(
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**data,
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thumbnail=None,
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decryption_info=EncryptedFile.parse_json(decryption_info) if decryption_info else None,
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)
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@classmethod
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async def get_many(cls, loc_ids: list[str]) -> list[TelegramFile]:
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if cls.db.scheme in (Scheme.POSTGRES, Scheme.COCKROACH):
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q = f"SELECT {cls.columns} FROM telegram_file WHERE id=ANY($1)"
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rows = await cls.db.fetch(q, loc_ids)
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else:
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tgid_placeholders = ("?," * len(loc_ids)).rstrip(",")
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q = f"SELECT {cls.columns} FROM telegram_file WHERE id IN ({tgid_placeholders})"
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rows = await cls.db.fetch(q, *loc_ids)
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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(cls, loc_id: str, *, _thumbnail: bool = False) -> TelegramFile | None:
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q = f"SELECT {cls.columns} FROM telegram_file WHERE id=$1"
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row = await cls.db.fetchrow(q, loc_id)
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file = cls._from_row(row)
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if file is None:
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return None
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try:
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thumbnail_id = row["thumbnail"]
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except KeyError:
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thumbnail_id = None
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if thumbnail_id and not _thumbnail:
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file.thumbnail = await cls.get(thumbnail_id, _thumbnail=True)
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return file
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@classmethod
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async def find_by_mxc(cls, mxc: ContentURI) -> TelegramFile | None:
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q = f"SELECT {cls.columns} FROM telegram_file WHERE mxc=$1"
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return cls._from_row(await cls.db.fetchrow(q, mxc))
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async def insert(self) -> None:
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q = (
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"INSERT INTO telegram_file (id, mxc, mime_type, was_converted, timestamp,"
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" size, width, height, thumbnail, decryption_info) "
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"VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10)"
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)
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await self.db.execute(
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q,
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self.id,
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self.mxc,
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self.mime_type,
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self.was_converted,
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self.timestamp,
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self.size,
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self.width,
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self.height,
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self.thumbnail.id if self.thumbnail else None,
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self.decryption_info.json() if self.decryption_info else None,
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)
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