Kepler (software)

This article is about the web application framework. For other uses, see Kepler (disambiguation).

Kepler

Developer(s)	Kepler Project team
Initial release	July 2005 (2005-07)
Stable release	1.1.1 / March 11, 2009 (2009-03-11)
Written in	Lua
Operating system	Cross-platform
Type	Web application framework
License	MIT
Website	keplerproject.org

Kepler is a free software project written in Lua that provides a portable, extensible website development platform. Current stable release is Kepler 1.1.1, for Lua 5.1. Kepler works on Windows and most variants of Unix.

The platform was designed to work with a number of web serving environments, called "launchers" in Kepler terminology. Kepler includes launchers for Apache (mod lua), FastCGI, CGI, ISAPI as well as a native web server written in pure Lua, called Xavante [1].

Kepler Frameworks

Kepler also provides the following frameworks:

• WSAPI - a web server API that abstracts the web server from Lua web applications a la Rack and WSGI
• Orbit - a WSAPI-based model–view–controller (MVC) web framework

Kepler Modules

Kepler also provides the following modules:

• CGILua - tool for creating dynamic Web pages and manipulating input data from Web forms, providing a CGI-like programming paradigm for different launchers such as Xavante and mod_lua
• LuaSQL - an interface from Lua to a DBMS, enabling Lua programs to connect to ODBC, ADO, Oracle, MySQL, SQLite and PostgreSQL databases
• Copas - a coroutine-based dispatcher, used by Xavante
• Cosmo - a templating engine that is "safe" protecting applications from arbitrary code within templates
• Coxpcall - coroutine compatible encapsulation of native pcall and xpcall
• LuaFileSystem - a library of file manipulation routines complementing Lua's basic set
• Rings - a library for creating isolated Lua execution environments from within Lua
• LuaExpat - an interface to the XML processing library Expat
• LuaLogging - a simple logging API
• LuaZip - library for reading inside ZIP files
• MD5/DES56 - basic cryptographic library, providing a digest function and a crypt/decrypt pair

Webapps on Kepler

• Sputnik is a wiki with embedded Kepler

Release history

Version	Date	Notes
1.1.1	March 11, 2009 (2009-03-11)
1.1	June 10, 2008 (2008-06-10)
1.1 Beta2	November 21, 2007 (2007-11-21)
1.0	November 30, 2006 (2006-11-30)

External links

• Official website
• LuaForge Kepler project