Plugin: 404
Author: Simon McVittie
Included in ikiwiki: yes
Enabled by default: no
Included in goodstuff: no
Currently enabled: yes

This plugin lets you use the IkiWiki CGI script as an Apache 404 handler, to give the behaviour of various other wiki engines where visiting a nonexistent page provides you with a link to create it.

To enable the 404 handler you need to:

1. Edit your .setup file and add 404 to the add_plugins line.

2. Add a 404 error document handler in your Apache configuration:

   ErrorDocument 404 /url/path/to/ikiwiki.cgi

Where /url/path/to is the path portion of the URL to the ikiwiki.cgi binary.

This plugin might also be useful on non-Apache web servers, if they provide the REDIRECT_STATUS and REDIRECT_URL environment variables to their 404 handlers. REDIRECT_STATUS should be 404 and REDIRECT_URL should be the path part of the URL (for instance it would be /plugins/404/ if this page was missing).

If you would like help with adapting this plugin for a different web server, you will need to provide the output of this 404 handler.