94 lines
3.2 KiB
Python
94 lines
3.2 KiB
Python
from zope.interface import implementer
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from zope import component
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from contextlib import contextmanager
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from ceo_common.interfaces import IDatabaseService, IConfig
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from ceo_common.errors import DatabaseConnectionError, DatabasePermissionError, UserAlreadyExistsError, \
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UserNotFoundError
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from ceo_common.logger_factory import logger_factory
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from ceod.utils import gen_password
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from ceod.db.utils import response_is_empty
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from mysql.connector import connect
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from mysql.connector.errors import InterfaceError, ProgrammingError
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logger = logger_factory(__name__)
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@implementer(IDatabaseService)
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class MySQLService:
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type = 'mysql'
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def __init__(self):
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config = component.getUtility(IConfig)
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self.auth_username = config.get('mysql_username')
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self.auth_password = config.get('mysql_password')
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self.host = config.get('mysql_host')
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# check that database is up and that we have admin rights
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test_user = "test_user_64559"
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self.create_db(test_user)
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self.delete_db(test_user)
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@contextmanager
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def mysql_connection(self):
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try:
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with connect(
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host=self.host,
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user=self.auth_username,
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password=self.auth_password,
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) as con:
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yield con
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except InterfaceError as e:
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logger.error(e)
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raise DatabaseConnectionError()
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except ProgrammingError as e:
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logger.error(e)
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raise DatabasePermissionError()
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def create_db(self, username: str) -> str:
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password = gen_password()
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search_for_user = f"SELECT user FROM mysql.user WHERE user='{username}'"
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search_for_db = f"SHOW DATABASES LIKE '{username}'"
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create_user = f"""
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CREATE USER '{username}'@'%' IDENTIFIED BY %(password)s;
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"""
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create_database = f"""
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CREATE DATABASE {username};
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GRANT ALL PRIVILEGES ON {username}.* TO '{username}'@'%';
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"""
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with self.mysql_connection() as con, con.cursor() as cursor:
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if response_is_empty(search_for_user, con):
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cursor.execute(create_user, {'password': password})
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if response_is_empty(search_for_db, con):
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cursor.execute(create_database)
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else:
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raise UserAlreadyExistsError()
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return password
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def reset_db_passwd(self, username: str) -> str:
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password = gen_password()
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search_for_user = f"SELECT user FROM mysql.user WHERE user='{username}'"
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reset_password = f"""
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ALTER USER '{username}'@'%' IDENTIFIED BY %(password)s
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"""
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with self.mysql_connection() as con, con.cursor() as cursor:
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if not response_is_empty(search_for_user, con):
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cursor.execute(reset_password, {'password': password})
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else:
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raise UserNotFoundError(username)
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return password
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def delete_db(self, username: str):
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drop_db = f"DROP DATABASE IF EXISTS {username}"
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drop_user = f"""
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DROP USER IF EXISTS '{username}'@'%';
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"""
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with self.mysql_connection() as con, con.cursor() as cursor:
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cursor.execute(drop_db)
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cursor.execute(drop_user)
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