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#!/usr/bin/perl
# hyperestraier search engine plugin
package IkiWiki::Plugin::search;
use warnings;
use strict;
use IkiWiki;
sub import { #{{{
IkiWiki::hook(type => "checkconfig", id => "hyperestraier",
call => \&checkconfig);
IkiWiki::hook(type => "pagetemplate", id => "hyperestraier",
call => \&pagetemplate);
IkiWiki::hook(type => "delete", id => "hyperestraier",
call => \&delete);
IkiWiki::hook(type => "change", id => "hyperestraier",
call => \&change);
IkiWiki::hook(type => "cgi", id => "hyperestraier",
call => \&cgi);
} # }}}
sub checkconfig () { #{{{
foreach my $required (qw(url cgiurl)) {
if (! length $IkiWiki::config{$required}) {
IkiWiki::error("Must specify $required when using the search plugin\n");
}
}
} #}}}
my $form;
sub pagetemplate (@) { #{{{
my %params=@_;
my $page=$params{page};
my $template=$params{template};
# Add search box to page header.
if ($template->query(name => "searchform")) {
if (! defined $form) {
my $searchform = IkiWiki::template("searchform.tmpl", blind_cache => 1);
$searchform->param(searchaction => $IkiWiki::config{cgiurl});
$form=$searchform->output;
}
$template->param(searchform => $form);
}
} #}}}
sub delete (@) { #{{{
IkiWiki::debug("cleaning hyperestraier search index");
IkiWiki::estcmd("purge -cl");
IkiWiki::estcfg();
} #}}}
sub change (@) { #{{{
IkiWiki::debug("updating hyperestraier search index");
IkiWiki::estcmd("gather -cm -bc -cl -sd",
map {
Encode::encode_utf8($IkiWiki::config{destdir}."/".$IkiWiki::renderedfiles{IkiWiki::pagename($_)})
} @_
);
IkiWiki::estcfg();
} #}}}
sub cgi ($) { #{{{
my $cgi=shift;
if (defined $cgi->param('phrase')) {
# only works for GET requests
chdir("$IkiWiki::config{wikistatedir}/hyperestraier") || IkiWiki::error("chdir: $!");
exec("./".IkiWiki::basename($IkiWiki::config{cgiurl})) || IkiWiki::error("estseek.cgi failed");
}
} #}}}
# Easier to keep these in the IkiWiki namespace.
package IkiWiki;
my $configured=0;
sub estcfg () { #{{{
return if $configured;
$configured=1;
my $estdir="$config{wikistatedir}/hyperestraier";
my $cgi=basename($config{cgiurl});
$cgi=~s/\..*$//;
open(TEMPLATE, ">$estdir/$cgi.tmpl") ||
error("write $estdir/$cgi.tmpl: $!");
print TEMPLATE misctemplate("search",
"<!--ESTFORM-->\n\n<!--ESTRESULT-->\n\n<!--ESTINFO-->\n\n");
close TEMPLATE;
open(TEMPLATE, ">$estdir/$cgi.conf") ||
error("write $estdir/$cgi.conf: $!");
my $template=template("estseek.conf");
eval q{use Cwd 'abs_path'};
$template->param(
index => $estdir,
tmplfile => "$estdir/$cgi.tmpl",
destdir => abs_path($config{destdir}),
url => $config{url},
);
print TEMPLATE $template->output;
close TEMPLATE;
$cgi="$estdir/".basename($config{cgiurl});
unlink($cgi);
symlink("/usr/lib/estraier/estseek.cgi", $cgi) ||
error("symlink $cgi: $!");
} # }}}
sub estcmd ($;@) { #{{{
my @params=split(' ', shift);
push @params, "-cl", "$config{wikistatedir}/hyperestraier";
if (@_) {
push @params, "-";
}
my $pid=open(CHILD, "|-");
if ($pid) {
# parent
foreach (@_) {
print CHILD "$_\n";
}
close(CHILD) || error("estcmd @params exited nonzero: $?");
}
else {
# child
open(STDOUT, "/dev/null"); # shut it up (closing won't work)
exec("estcmd", @params) || error("can't run estcmd");
}
} #}}}
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