use warnings;
use strict;
-use IkiWiki 2.00;
+use IkiWiki 3.00;
-sub import { #{{{
- hook(type => "sanitize", id => "htmlscrubber", call => \&sanitize);
-} # }}}
+# This regexp matches urls that are in a known safe scheme.
+# Feel free to use it from other plugins.
+our $safe_url_regexp;
-sub sanitize (@) { #{{{
- my %params=@_;
- return scrubber()->scrub($params{content});
-} # }}}
+sub import {
+ hook(type => "getsetup", id => "htmlscrubber", call => \&getsetup);
+ hook(type => "sanitize", id => "htmlscrubber", call => \&sanitize);
-my $_scrubber;
-sub scrubber { #{{{
- return $_scrubber if defined $_scrubber;
-
# Only known uri schemes are allowed to avoid all the ways of
# embedding javascrpt.
# List at http://en.wikipedia.org/wiki/URI_scheme
- my $uri_schemes=join("|",
+ my $uri_schemes=join("|", map quotemeta,
# IANA registered schemes
"http", "https", "ftp", "mailto", "file", "telnet", "gopher",
"aaa", "aaas", "acap", "cap", "cid", "crid",
"sip", "sips", "snmp", "tel", "urn", "wais", "xmpp",
"z39.50r", "z39.50s",
# Selected unofficial schemes
- "about", "aim", "callto", "cvs", "ed2k", "feed", "fish", "gg",
+ "aim", "callto", "cvs", "ed2k", "feed", "fish", "gg",
"irc", "ircs", "lastfm", "ldaps", "magnet", "mms",
"msnim", "notes", "rsync", "secondlife", "skype", "ssh",
- "sftp", "sms", "steam", "webcal", "ymsgr",
+ "sftp", "smb", "sms", "snews", "webcal", "ymsgr",
+ "bitcoin", "git", "svn", "bzr", "darcs", "hg"
);
- # data is a special case. Allow data:image/*, but
- # disallow data:text/javascript and everything else.
- my $link=qr/^(?:$uri_schemes:|data:image\/|[^:]+$)/i;
+ # data is a special case. Allow a few data:image/ types,
+ # but disallow data:text/javascript and everything else.
+ $safe_url_regexp=qr/^(?:(?:$uri_schemes):|data:image\/(?:png|jpeg|gif)|[^:]+(?:$|[\/\?#]))|^#/i;
+}
+
+sub getsetup () {
+ return
+ plugin => {
+ safe => 1,
+ rebuild => undef,
+ section => "core",
+ },
+ htmlscrubber_skip => {
+ type => "pagespec",
+ example => "!*/Discussion",
+ description => "PageSpec specifying pages not to scrub",
+ link => "ikiwiki/PageSpec",
+ safe => 1,
+ rebuild => undef,
+ },
+}
+
+sub sanitize (@) {
+ my %params=@_;
+
+ if (exists $config{htmlscrubber_skip} &&
+ length $config{htmlscrubber_skip} &&
+ exists $params{page} &&
+ pagespec_match($params{page}, $config{htmlscrubber_skip})) {
+ return $params{content};
+ }
+
+ return scrubber()->scrub($params{content});
+}
+
+my $_scrubber;
+sub scrubber {
+ return $_scrubber if defined $_scrubber;
eval q{use HTML::Scrubber};
error($@) if $@;
# Lists based on http://feedparser.org/docs/html-sanitization.html
- # With html 5 video and audio tags added.
+ # With html5 tags added.
$_scrubber = HTML::Scrubber->new(
allow => [qw{
a abbr acronym address area b big blockquote br br/
menu ol optgroup option p p/ pre q s samp select small
span strike strong sub sup table tbody td textarea
tfoot th thead tr tt u ul var
- video audio
+
+ video audio source section nav article aside hgroup
+ header footer figure figcaption time mark canvas
+ datalist progress meter ruby rt rp details summary
}],
default => [undef, { (
map { $_ => 1 } qw{
abbr accept accept-charset accesskey
align alt axis border cellpadding cellspacing
- char charoff charset checked cite class
+ char charoff charset checked class
clear cols colspan color compact coords
datetime dir disabled enctype for frame
headers height hreflang hspace id ismap
- label lang longdesc maxlength media method
+ label lang maxlength media method
multiple name nohref noshade nowrap prompt
readonly rel rev rows rowspan rules scope
selected shape size span start summary
- tabindex target title type usemap valign
+ tabindex target title type valign
value vspace width
- autoplay loopstart loopend end
- playcount controls
+ autofocus autoplay preload loopstart
+ loopend end playcount controls pubdate
+ loop muted
+ placeholder min max step low high optimum
+ form required autocomplete novalidate pattern
+ list formenctype formmethod formnovalidate
+ formtarget reversed spellcheck open hidden
} ),
"/" => 1, # emit proper <hr /> XHTML
- href => $link,
- src => $link,
- action => $link,
- poster => $link,
+ href => $safe_url_regexp,
+ src => $safe_url_regexp,
+ action => $safe_url_regexp,
+ formaction => $safe_url_regexp,
+ cite => $safe_url_regexp,
+ longdesc => $safe_url_regexp,
+ poster => $safe_url_regexp,
+ usemap => $safe_url_regexp,
}],
);
return $_scrubber;
-} # }}}
+}
1