HTML::Scrubber::StripScripts - strip scripting from HTML
use HTML::Scrubber::StripScripts; my $hss = HTML::Scrubber::StripScripts->new( Allow_src => 1, Allow_href => 1, Allow_a_mailto => 1, Whole_document => 1, Block_tags => ['hr'], ); my $clean_html = $hss->scrub($dirty_html);
This module provides a preworked configuration for HTML::Scrubber, configuring it to leave as much non-scripting markup in place as possible while being certain to eliminate all scripting constructs. This allows web applications to display HTML originating from an untrusted source without introducing XSS (cross site scripting) vulnerabilities.
- new ( CONFIG )
Returns a new
HTML::Scrubberobject, configured with a filtering policy based on a whitelist of XSS-free tags and attributes. If present, the CONFIG parameter must be a hashref. The following keys are recognized (unrecognized keys will be silently ignored).
By default, the scrubber won't be configured to allow constructs that cause the browser to fetch things automatically, such as
IMGtags. If this option is present and true then those constructs will be allowed.
By default, the scrubber won't be configured to allow constructs that cause the browser to fetch things if the user clicks on something, such as the
Atags. Set this option to a true value to allow this type of construct.
By default, the scrubber won't be configured to allow
Atags. Set this option to a true value to allow them. Ignored unless
By default, the scrubber will be configured to deal with a snippet of HTML to be placed inside another document after scrubbing, and won't allow
bodytags and so on.
Set this option to a true value if an entire HTML document is being scrubbed.
If present, this must be an array ref holding a list of lower case tag names. These tags will be removed from the allowed list.
For example, a guestbook CGI that uses
HRtags to separate posts might wish to disallow the
HRtag in posts, even though
HRpresents no XSS hazard.
All scripting is safely removed, but no attempt is made to ensure that there is a matching end tag for each start tag. That could be a problem if the scrubbed HTML is to be inserted into a larger HTML document, since
FONTtags and so on could be maliciously left open.
If that's a big problem for you, consider using the more heavyweight (and probably much slower) HTML::StripScripts module instead.
Nick Cleaton <email@example.com>
Copyright (C) 2003 Nick Cleaton. All Rights Reserved.
This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
1 POD Error
The following errors were encountered while parsing the POD:
- Around line 290:
You forgot a '=back' before '=head1'