141 lines
3.3 KiB
Python
141 lines
3.3 KiB
Python
"""
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This module defines Celery_ tasks to manage MySQL users and database.
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"""
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from __future__ import absolute_import, unicode_literals
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from celery import shared_task
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from celery.utils.log import get_task_logger
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from gvamysql import settings
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from MySQLdb import connect
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_LOGGER = get_task_logger(__name__)
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def _get_connection():
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return connect(
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host=settings.GVAMYSQL_DBADMIN_HOST,
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port=settings.GVAMYSQL_DBADMIN_PORT,
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user=settings.GVAMYSQL_DBADMIN_USER,
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passwd=settings.GVAMYSQL_DBADMIN_PASSWORD,
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db='mysql',
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)
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@shared_task
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def create_mysql_user(username, password):
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"""
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This task creates a new MySQL user.
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:param str username: the user name
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:param str password: the password
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:return: the created user's name
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:rtype: str
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"""
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conn = _get_connection()
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curs = conn.cursor()
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curs.execute(
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"""
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CREATE USER %(username)s@'%' IDENTIFIED BY %(password)s
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""",
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{'username': username, 'password': password}
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)
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conn.commit()
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return username
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@shared_task
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def set_mysql_userpassword(username, password):
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"""
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Set a new password for an existing MySQL user.
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:param str username: the user name
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:param str password: the password
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:return: True if the password could be set, False otherwise
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:rtype: boolean
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"""
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conn = _get_connection()
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curs = conn.cursor()
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curs.execute(
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"""
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SET PASSWORD FOR %(username)s = PASSWORD(%(password)s)
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""",
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{'username': username, 'password': password})
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conn.commit()
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return True
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@shared_task
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def delete_mysql_user(username):
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"""
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This task deletes an existing MySQL user.
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:param str username: the user name
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:return: True if the user has been deleted, False otherwise
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:rtype: boolean
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"""
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conn = _get_connection()
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curs = conn.cursor()
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curs.execute(
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"""
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DROP USER %(username)s@'%'
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""",
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{'username': username})
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conn.commit()
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return True
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@shared_task
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def create_mysql_database(dbname, username):
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"""
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This task creates a new MySQL database for the given MySQL user.
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:param str dbname: database name
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:param str username: the user name of an existing MySQL user
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:return: the database name
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:rtype: str
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"""
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conn = _get_connection()
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curs = conn.cursor()
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curs.execute(
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"""
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CREATE DATABASE %(dbname)s CHARACTER SET utf8 COLLATE utf8_german_ci
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""",
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{'dbname': dbname})
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curs.execute(
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"""
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GRANT ALL PRIVILEGES ON %(dbname)s.* TO %(username)s@'%'
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""",
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{'dbname': dbname, 'username': username})
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conn.commit()
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return dbname
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@shared_task
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def delete_mysql_database(dbname, username):
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"""
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This task deletes an existing MySQL database and revokes privileges of the
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given user on that database.
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:param str dbname: database name
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:param str username: the user name of an existing MySQL user
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:return: True if the database has been deleted, False otherwise
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:rtype: boolean
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"""
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conn = _get_connection()
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curs = conn.cursor()
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curs.execute(
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"""
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REVOKE ALL PRIVILEGES ON %(dbname)s.* FROM %(username)s@'%'
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""",
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{'dbname': dbname, 'username': username})
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conn.commit()
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return True
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