An extension module handle a virtual file extension. It will be called before any location modules, in case the use requests an URL ending with that extension.

The module type constant is MODULE_EXTENSION.

The API methods are:

array (string) query_extensions()

returns an array of strings containing the extensions this module handles. It should be configurable by the user, the easiest way would be to use a configuration variable of TYPE_STRING_LIST.

mixed handle_extension( string extension, object id )

is the method that will be called to do the actual work. extension is the extension of the request, id the request information object. For possible return values see the responses chapter.