The MapFish framework is built around an open HTTP-based protocol, allowing various interoperable implementations. In addition to the reference implementation provided by the Python framework, two other implementations are currently available:
A PHP implementation of the MapFish Protocol is available as a plugin to the Symfony framework. The plugin offers tools for generating MapFish applications and web services, it relies on the Doctrine ORM. It is distributed under the terms of the BSD license.
The plugin is hosted by the Symfony project. The README is also hosted by the Symfony project.
A Ruby implementation of the MapFish Protocol is available as a plugin to the Ruby on Rails framework. The plugin offers tools for generating MapFish applications and web services.
This plugin is available in the implementations directory of the MapFish SVN, under the terms of the GPLv3 license.