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#!/usr/bin/perl
package IkiWiki::Plugin::embed;
use warnings;
use strict;
use IkiWiki 2.00;
my $attribr=qr/[^<>"]+/;
# regexp matching known-safe html
my $safehtml=qr{(
# google maps
<\s*iframe\s+width="\d+"\s+height="\d+"\s+frameborder="$attribr"\s+
scrolling="$attribr"\s+marginheight="\d+"\s+marginwidth="\d+"\s+
src="http://maps.google.com/\?$attribr"\s*>\s*</iframe>
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# youtube
<\s*object\s+width="\d+"\s+height="\d+"\s*>\s*
<\s*param\s+name="movie"\s+value="http://www.youtube.com/v/$attribr"\s*>\s*
</param>\s*
<\s*param\s+name="wmode"\s+value="transparent"\s*>\s*</param>\s*
<embed\s+src="http://www.youtube.com/v/$attribr"\s+
type="application/x-shockwave-flash"\s+wmode="transparent"\s+
width="\d+"\s+height="\d+"\s*>\s*</embed>\s*</object>
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# google video
<\s*embed\s+style="\s*width:\d+px;\s+height:\d+px;\s*"\s+id="$attribr"\s+
type="application/x-shockwave-flash"\s+
src="http://video.google.com/googleplayer.swf\?$attribr"\s+
flashvars=""\s*>\s*</embed>
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# google calendar
<\s*iframe\s+src="http://www.google.com/calendar/embed\?src=$attribr"\s+
style="\s*border-width:\d+\s*"\s+width="\d+"\s+frameborder="\d+"\s*
height="\d+"\s*>\s*</iframe>
)}sx;
my @embedded;
sub import {
hook(type => "getsetup", id => "embed", call => \&getsetup);
hook(type => "filter", id => "embed", call => \&filter);
}
sub getsetup () {
return
plugin => {
safe => 1,
rebuild => undef,
},
}
sub embed ($) {
hook(type => "format", id => "embed", call => \&format) unless @embedded;
push @embedded, shift;
return "<div class=\"embed$#embedded\"></div>";
}
sub filter (@) {
my %params=@_;
$params{content} =~ s/$safehtml/embed($1)/eg;
return $params{content};
}
sub format (@) {
my %params=@_;
$params{content} =~ s/<div class="embed(\d+)"><\/div>/$embedded[$1]/eg;
return $params{content};
}
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