Metadata-Version: 2.1
Name: mysql-mimic
Version: 2.2.2
Summary: A python implementation of the mysql server protocol
Home-page: https://github.com/kelsin/mysql-mimic
Author: Christopher Giroir
Author-email: kelsin@valefor.com
License: MIT
Description: # MySQL-Mimic
        
        [![Tests](https://github.com/kelsin/mysql-mimic/actions/workflows/tests.yml/badge.svg)](https://github.com/kelsin/mysql-mimic/actions/workflows/tests.yml)
        
        Pure-python implementation of the MySQL server [wire protocol](https://dev.mysql.com/doc/internals/en/client-server-protocol.html).
        
        This can be used to create applications that act as a MySQL server.
        
        ## Installation
        
        ```shell
        pip install mysql-mimic
        ```
        
        ## Usage
        
        A minimal use case might look like this:
        
        ```python
        import asyncio
        
        from mysql_mimic import MysqlServer, Session
        
        
        class MySession(Session):
            async def query(self, expression, sql, attrs):
                print(f"Parsed abstract syntax tree: {expression}")
                print(f"Original SQL string: {sql}")
                print(f"Query attributes: {sql}")
                print(f"Currently authenticated user: {self.username}")
                print(f"Currently selected database: {self.database}")
                return [("a", 1), ("b", 2)], ["col1", "col2"]
        
            async def schema(self):
                # Optionally provide the database schema.
                # This is used to serve INFORMATION_SCHEMA and SHOW queries.
                return {
                    "table": {
                        "col1": "TEXT",
                        "col2": "INT",
                    }
                }
        
        if __name__ == "__main__":
            server = MysqlServer(session_factory=MySession)
            asyncio.run(server.serve_forever())
        ```
        
        Using [sqlglot](https://github.com/tobymao/sqlglot), the abstract `Session` class handles queries to metadata, variables, etc. that many MySQL clients expect.
        
        To bypass this default behavior, you can implement the [`mysql_mimic.session.BaseSession`](mysql_mimic/session.py) interface.
        
        See [examples](./examples) for more examples.
        
        ## Authentication
        
        MySQL-mimic has built in support for several standard MySQL authentication plugins:
        - [mysql_native_password](https://dev.mysql.com/doc/refman/8.0/en/native-pluggable-authentication.html)
          - The client sends hashed passwords to the server, and the server stores hashed passwords. See the documentation for more details on how this works.
          - [example](examples/auth_native_password.py)
        - [mysql_clear_password](https://dev.mysql.com/doc/refman/8.0/en/cleartext-pluggable-authentication.html)
          - The client sends passwords to the server as clear text, without hashing or encryption.
          - This is typically used as the client plugin for a custom server plugin. As such, MySQL-mimic provides an abstract class, [`mysql_mimic.auth.AbstractClearPasswordAuthPlugin`](mysql_mimic/auth.py), which can be extended.
          - [example](examples/auth_clear_password.py)
        - [mysql_no_login](https://dev.mysql.com/doc/refman/8.0/en/no-login-pluggable-authentication.html)
          - The server prevents clients from directly authenticating as an account. See the documentation for relevant use cases.
        - [authentication_kerberos](https://dev.mysql.com/doc/mysql-security-excerpt/8.0/en/kerberos-pluggable-authentication.html)
          - Kerberos uses tickets together with symmetric-key cryptography, enabling authentication without sending passwords over the network. Kerberos authentication supports userless and passwordless scenarios.
        
        
        By default, a session naively accepts whatever username the client provides.
        
        Plugins are provided to the server by implementing [`mysql_mimic.IdentityProvider`](mysql_mimic/auth.py), which configures all available plugins and a callback for fetching users.
        
        Custom plugins can be created by extending [`mysql_mimic.auth.AuthPlugin`](mysql_mimic/auth.py).
        
        ## Development
        
        You can install dependencies with `make deps`.
        
        You can format your code with `make format`.
        
        You can lint with `make lint`.
        
        You can check type annotations with `make types`.
        
        You can run tests with `make test`. This will build a coverage report in `./htmlcov/index.html`.
        
        You can run all the checks with `make check`.
        
        You can build a pip package with `make build`.
        
Platform: UNKNOWN
Classifier: Development Status :: 3 - Alpha
Classifier: Intended Audience :: Developers
Classifier: Intended Audience :: Science/Research
Classifier: Operating System :: OS Independent
Classifier: Programming Language :: SQL
Classifier: Programming Language :: Python :: 3 :: Only
Requires-Python: >=3.6
Description-Content-Type: text/markdown
Provides-Extra: dev
Provides-Extra: krb5
