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324 lines (260 loc) · 10 KB
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# Hydrogram - Telegram MTProto API Client Library for Python
# Copyright (C) 2017-2023 Dan <https://github.com/delivrance>
# Copyright (C) 2023-present Hydrogram <https://hydrogram.org>
#
# This file is part of Hydrogram.
#
# Hydrogram is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published
# by the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Hydrogram 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 Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with Hydrogram. If not, see <http://www.gnu.org/licenses/>.
from __future__ import annotations
import base64
import logging
import struct
import time
from pathlib import Path
from typing import Any
import aiosqlite
from hydrogram import raw, utils
from .base import BaseStorage, InputPeer
SCHEMA = """
CREATE TABLE sessions
(
dc_id INTEGER PRIMARY KEY,
api_id INTEGER,
test_mode INTEGER,
auth_key BLOB,
date INTEGER NOT NULL,
user_id INTEGER,
is_bot INTEGER
);
CREATE TABLE peers
(
id INTEGER PRIMARY KEY,
access_hash INTEGER,
type INTEGER NOT NULL,
username TEXT,
phone_number TEXT,
last_update_on INTEGER NOT NULL DEFAULT (CAST(STRFTIME('%s', 'now') AS INTEGER))
);
CREATE TABLE version
(
number INTEGER PRIMARY KEY
);
CREATE INDEX idx_peers_id ON peers (id);
CREATE INDEX idx_peers_username ON peers (username);
CREATE INDEX idx_peers_phone_number ON peers (phone_number);
CREATE TRIGGER trg_peers_last_update_on
AFTER UPDATE
ON peers
BEGIN
UPDATE peers
SET last_update_on = CAST(STRFTIME('%s', 'now') AS INTEGER)
WHERE id = NEW.id;
END;
"""
def get_input_peer(peer_id: int, access_hash: int, peer_type: str) -> InputPeer:
if peer_type in {"user", "bot"}:
return raw.types.InputPeerUser(user_id=peer_id, access_hash=access_hash)
if peer_type == "group":
return raw.types.InputPeerChat(chat_id=-peer_id)
if peer_type in {"channel", "supergroup"}:
return raw.types.InputPeerChannel(
channel_id=utils.get_channel_id(peer_id), access_hash=access_hash
)
raise ValueError(f"Invalid peer type: {peer_type}")
class SQLiteStorage(BaseStorage):
VERSION = 3
USERNAME_TTL = 8 * 60 * 60
FILE_EXTENSION = ".session"
def __init__(
self,
name: str,
workdir: Path | None = None,
session_string: str | None = None,
use_memory: bool = False,
):
super().__init__(name)
self.database: str | Path = (
":memory:"
if use_memory
else (workdir / (self.name + self.FILE_EXTENSION) if workdir else ":memory:")
)
self.session_string: str | None = session_string
self.conn: aiosqlite.Connection | None = None
async def update(self) -> None:
if not self.conn:
logging.warning("Database connection is not available.")
return
version: int | None = await self.version()
if version == 1:
await self.conn.execute("DELETE FROM peers")
version += 1
if version == 2:
await self.conn.execute("ALTER TABLE sessions ADD api_id INTEGER")
version += 1
await self.version(version)
await self.conn.commit()
async def create(self) -> None:
if not self.conn:
logging.warning("Database connection is not available.")
return
await self.conn.executescript(SCHEMA)
await self.conn.execute(
"INSERT INTO version VALUES (?)",
(self.VERSION,),
)
await self.conn.execute(
"INSERT INTO sessions VALUES (?, ?, ?, ?, ?, ?, ?)",
(2, None, None, None, 0, None, None),
)
await self.conn.commit()
async def open(self) -> None:
path = self.database
file_exists = isinstance(path, Path) and path.is_file()
self.conn = await aiosqlite.connect(self.database)
await self.conn.execute("PRAGMA journal_mode=WAL")
if file_exists:
await self.update()
await self.conn.execute("VACUUM")
else:
await self.create()
await self.conn.commit()
if self.session_string:
await self._load_session_string()
async def _load_session_string(self) -> None:
if not self.conn:
logging.warning("Database connection is not available.")
return
if self.session_string:
dc_id, api_id, test_mode, auth_key, user_id, is_bot = struct.unpack(
self.SESSION_STRING_FORMAT,
base64.urlsafe_b64decode(
self.session_string + "=" * (-len(self.session_string) % 4)
),
)
await self.dc_id(dc_id)
await self.api_id(api_id)
await self.test_mode(test_mode)
await self.auth_key(auth_key)
await self.user_id(user_id)
await self.is_bot(is_bot)
await self.date(0)
async def save(self) -> None:
if not self.conn:
logging.warning("Database connection is not available.")
return
await self.date(int(time.time()))
await self.conn.commit()
async def close(self) -> None:
if self.conn:
await self.conn.close()
async def delete(self) -> None:
if self.database != ":memory:":
Path(self.database).unlink()
async def update_peers(
self, peers: list[tuple[int, int, str, str | None, str | None]]
) -> None:
if not self.conn:
logging.warning("Database connection is not available.")
return
await self.conn.executemany(
"REPLACE INTO peers (id, access_hash, type, username, phone_number) "
"VALUES (?, ?, ?, ?, ?)",
peers,
)
await self.conn.commit()
async def get_peer_by_id(self, peer_id: int) -> InputPeer | None:
if not self.conn:
logging.warning("Database connection is not available.")
return None
q = await self.conn.execute(
"SELECT id, access_hash, type FROM peers WHERE id = ?", (peer_id,)
)
r = await q.fetchone()
if not r:
raise KeyError(f"ID not found: {peer_id}")
return get_input_peer(*r)
async def get_peer_by_username(self, username: str) -> InputPeer | None:
if not self.conn:
logging.warning("Database connection is not available.")
return None
q = await self.conn.execute(
"SELECT id, access_hash, type, last_update_on "
"FROM peers "
"WHERE username = ? "
"ORDER BY last_update_on DESC",
(username,),
)
r = await q.fetchone()
if not r:
raise KeyError(f"Username not found: {username}")
if abs(time.time() - r[3]) > self.USERNAME_TTL:
raise KeyError(f"Username expired: {username}")
return get_input_peer(*r[:3])
async def get_peer_by_phone_number(self, phone_number: str) -> InputPeer | None:
if not self.conn:
logging.warning("Database connection is not available.")
return None
q = await self.conn.execute(
"SELECT id, access_hash, type FROM peers WHERE phone_number = ?", (phone_number,)
)
r = await q.fetchone()
if not r:
raise KeyError(f"Phone number not found: {phone_number}")
return get_input_peer(*r)
async def _get(self, attr: str) -> Any:
if not self.conn:
logging.warning("Database connection is not available.")
return None
q = await self.conn.execute(f"SELECT {attr} FROM sessions")
row = await q.fetchone()
return row[0] if row else None
async def _set(self, attr: str, value: Any) -> None:
if not self.conn:
logging.warning("Database connection is not available.")
return
await self.conn.execute(f"UPDATE sessions SET {attr} = ?", (value,))
await self.conn.commit()
async def _accessor(self, attr: str, value: Any = object) -> Any | None:
if not self.conn:
logging.warning("Database connection is not available.")
return None
if value is object:
return await self._get(attr)
await self._set(attr, value)
return None
async def dc_id(self, value: int | object = object) -> int | None:
return await self._accessor("dc_id", value)
async def api_id(self, value: int | object = object) -> int | None:
return await self._accessor("api_id", value)
async def test_mode(self, value: bool | object = object) -> bool | None:
return await self._accessor("test_mode", value)
async def auth_key(self, value: bytes | object = object) -> bytes | None:
return await self._accessor("auth_key", value)
async def date(self, value: int | object = object) -> int | None:
return await self._accessor("date", value)
async def user_id(self, value: int | object = object) -> int | None:
return await self._accessor("user_id", value)
async def is_bot(self, value: bool | object = object) -> bool | None:
return await self._accessor("is_bot", value)
async def version(self, value: int | object = object) -> int | None:
if not self.conn:
logging.warning("Database connection is not available.")
return None
if value is object:
q = await self.conn.execute("SELECT number FROM version")
row = await q.fetchone()
return row[0] if row else None
await self.conn.execute("UPDATE version SET number = ?", (value,))
await self.conn.commit()
return None
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