HTML-Laundry

HTML::Laundry is an HTML::Parser-based HTML normalizer, meant for small pieces
of HTML, such as user comments, Atom feed entries, and the like, rather than 
full pages. Laundry takes these and returns clean, sanitary, UTF-8-based XHTML.

A snippet is cleaned several ways:

* Normalized, using HTML::Parser: attributes and elements will be lowercased, 
empty elements such as <img /> and <br /> will be forced into the 
empty tag syntax if needed, and unknown attributes and elements will be stripped
* Sanitized, using an extensible whitelist of valid attributes and elements based
on [WHATWG's sanitzation rules](http://wiki.whatwg.org/wiki/Sanitization_rules), 
which are in turn based on Mark Pilgrim and Aaron Swartz's work on sanitize.py. 
Tags and attributes which are known to be possible attack vectors are removed, and 
URLs are rewritten to prevent cross-site scripting attacks.
* Tidied, using HTML::Tidy (as available): unclosed tags will be closed and the 
output generally neatened; future version may also use HTML::Tidy to deal with 
character encoding issues
* Optionally rebased, to turn relative URLs in attributes into absolute ones

INSTALLATION

To install this module, run the following commands:

	perl Makefile.PL
	make
	make test
	make install

SUPPORT AND DOCUMENTATION

After installing, you can find documentation for this module with the
perldoc command.

    perldoc HTML::Laundry

COPYRIGHT AND LICENCE

Copyright (C) 2009 Six Apart, Ltd.

This program is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.