414 lines
11 KiB
Python
414 lines
11 KiB
Python
import sqlite3
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from os import urandom
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from hashlib import sha256
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def init_db(path: str) -> None:
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with sqlite3.connect(path) as connection:
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cursor = connection.cursor()
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cursor.execute('''
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CREATE TABLE IF NOT EXISTS Tokens (
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TKHASH TEXT PRIMARY KEY NOT NULL,
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USERID INTEGER NOT NULL,
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NAME TEXT NOT NULL
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)
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''')
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cursor.execute('''
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CREATE TABLE IF NOT EXISTS Domains (
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DOMAIN TEXT PRIMARY KEY NOT NULL,
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USERID INTEGER NOT NULL
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)
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''')
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cursor.execute('''
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CREATE TABLE IF NOT EXISTS Users (
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USERID INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,
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USERNAME TEXT NOT NULL UNIQUE,
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PWHASH TEXT NOT NULL,
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PWSALT TEXT NOT NULL,
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EMAIL TEXT,
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IS_ADMIN INTEGER NOT NULL DEFAULT 0
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)
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''')
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cursor.execute('''
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SELECT COUNT(*) FROM Users
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''')
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if cursor.fetchone()[0] == 0:
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username = "root"
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password = urandom(8).hex()
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create_user(path, username, password, is_admin=True)
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print(f"No users detected, created new admin\nUser: {username}\nPass: {password}", flush=True)
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def check_token_domain(db_path: str, token: str, domain: str) -> bool:
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with sqlite3.connect(db_path) as connection:
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cursor = connection.cursor()
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token_hash = sha256(token.encode('utf-8')).hexdigest()
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cursor.execute('''
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SELECT COUNT(*) FROM Tokens
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JOIN Domains ON Tokens.userid = Domains.userid
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WHERE tkhash = ?
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AND domain = ?
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''', (token_hash, domain))
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return cursor.fetchone()[0] == 1
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def user_login(db_path: str, username: str, password: str) -> int | None:
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with sqlite3.connect(db_path) as connection:
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cursor = connection.cursor()
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cursor.execute('''
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SELECT pwsalt FROM Users
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WHERE username = ?
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''', (username,))
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password_salt = cursor.fetchone()
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if password_salt is None:
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return None
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password_salt = password_salt[0]
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password_hash = sha256( (password_salt + password).encode('utf-8') ).hexdigest()
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cursor.execute('''
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SELECT userid FROM Users
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WHERE username = ?
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AND pwhash = ?
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''', (username, password_hash))
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result = cursor.fetchone()
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if result is None:
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return None
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return result[0]
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def get_username(db_path: str, userid: int) -> str | None:
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with sqlite3.connect(db_path) as connection:
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cursor = connection.cursor()
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cursor.execute('''
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SELECT username FROM Users
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WHERE userid = ?
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''', (userid, ))
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username = cursor.fetchone()
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if username is None:
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return None
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return username[0]
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def get_user_domains(db_path: str, userid: int) -> list[str]:
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with sqlite3.connect(db_path) as connection:
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cursor = connection.cursor()
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cursor.execute('''
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SELECT domain FROM Domains
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WHERE userid = ?
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''', (userid, ))
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domains = cursor.fetchall()
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domains = map(lambda x: x[0], domains)
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return domains
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def get_user_tokens(db_path: str, userid: int) -> list[str]:
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with sqlite3.connect(db_path) as connection:
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cursor = connection.cursor()
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cursor.execute('''
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SELECT name FROM Tokens
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WHERE userid = ?
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''', (userid, ))
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tokens = cursor.fetchall()
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tokens = map(lambda x: x[0], tokens)
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return tokens
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def generate_user_token(db_path: str, userid: int, token_name: str) -> str | None:
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with sqlite3.connect(db_path) as connection:
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cursor = connection.cursor()
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cursor.execute('''
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SELECT COUNT(*) FROM Users
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WHERE userid = ?
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''', (userid, ))
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if cursor.fetchone()[0] != 1:
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return None
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cursor.execute('''
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SELECT COUNT(*) FROM Tokens
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WHERE userid = ?
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''', (userid, ))
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if cursor.fetchone()[0] >= 5:
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return None
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cursor.execute('''
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SELECT COUNT(*) FROM Tokens
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WHERE userid = ?
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AND name = ?
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''', (userid, token_name))
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if cursor.fetchone()[0] != 0:
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return None
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if not token_name.isalnum():
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return None
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if len(token_name) >= 16:
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return None
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for _ in range(10):
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try:
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token = urandom(32).hex()
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token_hash = sha256(token.encode("utf-8")).hexdigest()
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cursor.execute('''
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INSERT INTO Tokens (tkhash, userid, name) VALUES (?, ?, ?)
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''', (token_hash, userid, token_name))
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return token
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except sqlite3.IntegrityError:
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pass
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return None
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def revoke_user_token(db_path: str, userid: int, token_name: str) -> None:
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with sqlite3.connect(db_path) as connection:
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cursor = connection.cursor()
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cursor.execute('''
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DELETE FROM Tokens
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WHERE userid = ?
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AND name = ?
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''', (userid, token_name))
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def change_user_password(db_path: str, userid: int, oldpass: str, newpass: str) -> bool:
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with sqlite3.connect(db_path) as connection:
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cursor = connection.cursor()
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cursor.execute('''
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SELECT COUNT(*) FROM Users
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WHERE userid = ?
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''', (userid, ))
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if cursor.fetchone()[0] != 1:
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return False
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cursor.execute('''
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SELECT pwsalt FROM Users
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WHERE userid = ?
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''', (userid, ))
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salt = cursor.fetchone()
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if salt is None:
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return False
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salt = salt[0]
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oldpass_hash = sha256( (salt + oldpass).encode('utf-8')).hexdigest()
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cursor.execute('''
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SELECT COUNT(*) FROM Users
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WHERE userid = ?
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AND pwhash = ?
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''', (userid, oldpass_hash))
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if cursor.fetchone()[0] != 1:
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return False
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return set_user_password(db_path, userid, newpass)
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def set_user_password(db_path: str, userid: int, newpass: str) -> bool:
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with sqlite3.connect(db_path) as connection:
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cursor = connection.cursor()
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cursor.execute('''
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SELECT COUNT(*) FROM Users
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WHERE userid = ?
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''', (userid, ))
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if cursor.fetchone()[0] != 1:
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return False
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salt = urandom(16).hex()
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newpass_hash = sha256( (salt + newpass).encode('utf-8')).hexdigest()
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cursor.execute('''
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UPDATE Users
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SET
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pwsalt = ?,
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pwhash = ?
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WHERE userid = ?
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''', (salt, newpass_hash, userid))
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return True
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def is_admin(db_path: str, userid: int) -> bool:
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with sqlite3.connect(db_path) as connection:
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cursor = connection.cursor()
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cursor.execute('''
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SELECT COUNT(*) FROM Users
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WHERE userid = ?
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AND IS_ADMIN = 1
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''', (userid, ))
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return cursor.fetchone()[0] == 1
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def get_users(db_path: str) -> dict:
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with sqlite3.connect(db_path) as connection:
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cursor = connection.cursor()
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cursor.execute('''
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SELECT userid, username, is_admin, email FROM Users
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''')
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users = cursor.fetchall()
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users = list(map(lambda x: {"userid": x[0], "username": x[1], "domains": [], "email": x[3], "is_admin": bool(x[2])}, users))
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for user in users:
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cursor.execute('''
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SELECT domain FROM Domains
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WHERE userid = ?
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''', (user["userid"], ))
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domains = cursor.fetchall()
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domains = list(map(lambda x: x[0], domains))
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user['domains'] = domains
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return users
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def create_user(db_path: str, username: str, password: str, domains: list = [], is_admin: bool = False, email: str = None):
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with sqlite3.connect(db_path) as connection:
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cursor = connection.cursor()
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username.strip()
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if email is not None:
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email.strip()
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cursor.execute('''
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SELECT COUNT(*) FROM Users
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WHERE username = ?
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''', (username, ))
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if cursor.fetchone()[0] != 0:
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return "Username exists"
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if username == "":
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return "Username is empty"
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if not username.isalnum():
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return "Username is not alphanumeric"
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if password == "":
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return "Password empty"
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if len(password) < 8:
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return "Password is shorter than 8 characters"
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salt = urandom(16).hex()
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password_hash = sha256( (salt + password).encode('utf-8')).hexdigest()
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cursor.execute('''
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INSERT INTO Users (username, pwsalt, pwhash, email, is_admin) VALUES (?, ?, ?, ?, ?)
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''', (username, salt, password_hash, email, is_admin))
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cursor.execute('''
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SELECT userid FROM Users
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WHERE username = ?
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''', (username, ))
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userid = cursor.fetchone()[0]
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for domain in domains:
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domain = domain.strip()
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if domain == "":
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continue
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cursor.execute('''
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SELECT COUNT(*) FROM Domains
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WHERE domain = ?
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''', (domain, ))
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if cursor.fetchone()[0] != 0:
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continue
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cursor.execute('''
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INSERT INTO Domains (userid, domain) VALUES (?, ?)
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''', (userid, domain))
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def update_user(db_path: str, userid: int, domains: list[str] = None, password: str = None, is_admin: bool = None, email: str = None) -> tuple[bool, str]:
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with sqlite3.connect(db_path) as connection:
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cursor = connection.cursor()
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cursor.execute('''
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SELECT COUNT(*) FROM Users
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WHERE userid = ?
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''', (userid, ))
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if cursor.fetchone()[0] != 1:
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return False, "Uerid not found"
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if domains is not None:
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# crude check if domains is iterable
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for domain in domains:
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break
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cursor.execute('''
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DELETE FROM Domains
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WHERE userid = ?
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''', (userid, ))
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for domain in domains:
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cursor.execute('''
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INSERT INTO Domains (userid, domain) VALUES (?, ?)
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''', (userid, domain))
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if password is not None:
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set_user_password(db_path, userid, password)
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if is_admin is not None:
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cursor.execute('''
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UPDATE Users
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SET
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is_admin = ?
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WHERE userid = ?
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''', (is_admin, userid))
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if email is not None:
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if email == "":
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email = None
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cursor.execute('''
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UPDATE Users
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SET
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email = ?
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WHERE userid = ?
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''', (email, userid))
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def delete_user(db_path: str, userid: int):
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with sqlite3.connect(db_path) as connection:
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cursor = connection.cursor()
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cursor.execute('DELETE FROM Domains WHERE userid = ?', (userid,))
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cursor.execute('DELETE FROM Tokens WHERE userid = ?', (userid,))
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cursor.execute('DELETE FROM Users WHERE userid = ?', (userid,))
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