File extension modules handle one or several different file types. A file extension module is called after a location, or other module type, has returned a Stdio.File object with the correct extension.

The module type constant is MODULE_FILE_EXTENSION.

The available API methods are:

array (string) query_file_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_file_extensions( Stdio.File file, string extension, object id )

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