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# Pyrogram - Telegram MTProto API Client Library for Python
# Copyright (C) 2017-2021 Dan <https://github.com/delivrance>
#
# This file is part of Pyrogram.
#
# Pyrogram 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.
#
# Pyrogram 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 Pyrogram. If not, see <http://www.gnu.org/licenses/>.
import inspect
import sqlite3
import time
from threading import Lock
from typing import List, Tuple, Any
from pyrogram import raw
from .storage import Storage
from .. import utils
# language=SQLite
SCHEMA = """
CREATE TABLE sessions
(
dc_id INTEGER PRIMARY KEY,
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):
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(Storage):
VERSION = 2
USERNAME_TTL = 8 * 60 * 60
def __init__(self, name: str):
super().__init__(name)
self.conn = None # type: sqlite3.Connection
self.lock = Lock()
def create(self):
with self.lock, self.conn:
self.conn.executescript(SCHEMA)
self.conn.execute(
"INSERT INTO version VALUES (?)",
(self.VERSION,)
)
self.conn.execute(
"INSERT INTO sessions VALUES (?, ?, ?, ?, ?, ?)",
(2, None, None, 0, None, None)
)
async def open(self):
raise NotImplementedError
async def save(self):
await self.date(int(time.time()))
with self.lock:
self.conn.commit()
async def close(self):
with self.lock:
self.conn.close()
async def delete(self):
raise NotImplementedError
async def update_peers(self, peers: List[Tuple[int, int, str, str, str]]):
with self.lock:
self.conn.executemany(
"REPLACE INTO peers (id, access_hash, type, username, phone_number)"
"VALUES (?, ?, ?, ?, ?)",
peers
)
async def get_peer_by_id(self, peer_id: int):
r = self.conn.execute(
"SELECT id, access_hash, type FROM peers WHERE id = ?",
(peer_id,)
).fetchone()
if r is None:
raise KeyError(f"ID not found: {peer_id}")
return get_input_peer(*r)
async def get_peer_by_username(self, username: str):
r = self.conn.execute(
"SELECT id, access_hash, type, last_update_on FROM peers WHERE username = ?",
(username,)
).fetchone()
if r is None:
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):
r = self.conn.execute(
"SELECT id, access_hash, type FROM peers WHERE phone_number = ?",
(phone_number,)
).fetchone()
if r is None:
raise KeyError(f"Phone number not found: {phone_number}")
return get_input_peer(*r)
def _get(self):
attr = inspect.stack()[2].function
return self.conn.execute(
f"SELECT {attr} FROM sessions"
).fetchone()[0]
def _set(self, value: Any):
attr = inspect.stack()[2].function
with self.lock, self.conn:
self.conn.execute(
f"UPDATE sessions SET {attr} = ?",
(value,)
)
def _accessor(self, value: Any = object):
return self._get() if value == object else self._set(value)
async def dc_id(self, value: int = object):
return self._accessor(value)
async def test_mode(self, value: bool = object):
return self._accessor(value)
async def auth_key(self, value: bytes = object):
return self._accessor(value)
async def date(self, value: int = object):
return self._accessor(value)
async def user_id(self, value: int = object):
return self._accessor(value)
async def is_bot(self, value: bool = object):
return self._accessor(value)
def version(self, value: int = object):
if value == object:
return self.conn.execute(
"SELECT number FROM version"
).fetchone()[0]
else:
with self.lock, self.conn:
self.conn.execute(
"UPDATE version SET number = ?",
(value,)
)