mysql-proxy-rs

An implementation of a MySQL proxy server built on top of tokio-core. Tested with rustc 1.13.0-nightly (cbe4de78e 2016-09-05).

Usage

The proxy uses the following interface for defining a handler for handling request and response packets:

```rust pub enum Action { Forward, // forward the packet unmodified Mutate(Packet), // mutate the packet Respond(Vec) // handle directly and optionally return some packets }

pub trait PacketHandler { fn handlerequest(&self, p: &Packet) -> Action; fn handleresponse(&self, p: &Packet) -> Action; } ```

This allows the proxy to forward packets unmodified, mutate individual packets, or take over handling of a packet completely.

Example

The example proxy passes all queries to MySQL except for queries containing the word 'avocado'.

$ cargo run --example proxy ... Listening for MySQL proxy connections on 127.0.0.1:3307

Then in a separate window you can test out the proxy. The proxy currently assumes that a MySQL server is running on port 3306.

$ mysql -u root -p -h 127.0.0.1 -P 3307

```sql mysql> select 'banana'; +--------+ | banana | +--------+ | banana | +--------+ 1 row in set (0.00 sec)

mysql> select 'avocado'; ERROR 1064 (12345): Proxy rejecting any avocado-related queries ```

License

mysql-proxy-rs is distributed under the terms of the Apache License (Version 2.0).

See LICENSE-APACHE for details.