ikiwiki/IkiWiki/Plugin/htmltidy.pm

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#!/usr/bin/perl
# HTML Tidy plugin
# requires 'tidy' binary, found in Debian or http://tidy.sf.net/
# mostly a proof-of-concept on how to use external filters.
# It is particularly useful when the html plugin is used.
#
# by Faidon Liambotis
package IkiWiki::Plugin::htmltidy;
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use warnings;
use strict;
use IkiWiki 3.00;
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use IPC::Open2;
sub import {
hook(type => "getsetup", id => "tidy", call => \&getsetup);
hook(type => "sanitize", id => "tidy", call => \&sanitize);
hook(type => "checkconfig", id => "tidy", call => \&checkconfig);
}
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sub getsetup () {
return
plugin => {
safe => 1,
rebuild => undef,
},
htmltidy => {
type => "string",
description => "tidy command line",
safe => 0, # path
rebuild => undef,
},
}
sub checkconfig () {
if (! defined $config{htmltidy}) {
$config{htmltidy}="tidy -quiet -asxhtml -utf8 --show-body-only yes --show-warnings no --tidy-mark no --markup yes";
}
}
sub sanitize (@) {
my %params=@_;
return $params{content} unless defined $config{htmltidy};
my $pid;
my $sigpipe=0;
$SIG{PIPE}=sub { $sigpipe=1 };
$pid=open2(*IN, *OUT, "$config{htmltidy} 2>/dev/null");
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# open2 doesn't respect "use open ':utf8'"
binmode (IN, ':utf8');
binmode (OUT, ':utf8');
print OUT $params{content};
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close OUT;
local $/ = undef;
my $ret=<IN>;
close IN;
waitpid $pid, 0;
$SIG{PIPE}="DEFAULT";
if ($sigpipe || ! defined $ret) {
return gettext("htmltidy failed to parse this html");
}
return $ret;
}
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