Plugin: siterel2pagerel
Author: PaulWise
Included in ikiwiki: no
Enabled by default: no
Included in goodstuff: no
Currently enabled: no

This is a simple plugin to convert all site-relative links to page-relative links (converts /foo into ../../../foo or similar). It works as a postprocessing filter, allowing it to work on mdwn, wiki, html, rst and any other format that produces html. The code is available here:

# quick HTML siterel2pagerel link hack by Paul Wise
package IkiWiki::Plugin::siterel2pagerel;

use warnings;
use strict;
use IkiWiki 2.00;

sub import {
        hook(type => "sanitize", id => "siterel2pagerel", call => \&siterel2pagerel);

sub siterel2pagerel (@) {
        my %params=@_;
        my $baseurl=IkiWiki::baseurl($params{page});
        my $content=$params{content};
        $content=~s/(<a(?:\s+(?:class|id)\s*="?\w+"?)?)\s+href=\s*"\/([^"]*)"/$1 href="$baseurl$2"/mig;
        $content=~s/(<img(?:\s+(?:class|id|width|height)\s*="?\w+"?)*)\s+src=\s*"\/([^"]*)"/$1 src="$baseurl$2"/mig;
        # FIXME: do <script and everything else that can have URLs in it
        return $content;