path: root/IkiWiki/Plugin/search.pm

#!/usr/bin/perl
# xapian-omega search engine plugin
package IkiWiki::Plugin::search;

use warnings;
use strict;
use IkiWiki 2.00;

sub import { #{{{
    hook(type => "checkconfig", id => "search", call => \&checkconfig);
    hook(type => "pagetemplate", id => "search", call => \&pagetemplate);
    hook(type => "delete", id => "search", call => \&delete);
    hook(type => "change", id => "search", call => \&change);
    hook(type => "cgi", id => "search", call => \&cgi);
} # }}}

sub checkconfig () { #{{{
    foreach my $required (qw(url cgiurl)) {
        if (! length $config{$required}) {
            error(sprintf(gettext("Must specify %s when using the search plugin"), $required));
        }
    }

    if (! exists $config{omega_cgi}) {
        $config{omega_cgi}="/usr/lib/cgi-bin/omega/omega";
    }
    
    if (! -e $config{wikistatedir}."/xapian" || $config{rebuild}) {
        writefile("omega.conf", $config{wikistatedir}."/xapian",
            "database_dir .\n".
            "template_dir ./templates\n");
        writefile("query", $config{wikistatedir}."/xapian/templates",
            IkiWiki::misctemplate(gettext("search"),
                readfile(IkiWiki::template_file("searchquery.tmpl"))));
    }
} #}}}

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 = template("searchform.tmpl", blind_cache => 1);
            $searchform->param(searchaction => $config{cgiurl});
            $form=$searchform->output;
        }

        $template->param(searchform => $form);
    }
} #}}}

sub delete (@) { #{{{
    debug(gettext("cleaning xapian search index"));
} #}}}

sub change (@) { #{{{
    debug(gettext("updating xapian search index"));
} #}}}

sub cgi ($) { #{{{
    my $cgi=shift;

    if (defined $cgi->param('P')) {
        # only works for GET requests
        chdir("$config{wikistatedir}/xapian") || error("chdir: $!");
        $ENV{OMEGA_CONFIG_FILE}="./omega.conf";
        $ENV{CGIURL}=$config{cgiurl},
        exec($config{omega_cgi}) || error("$config{omega_cgi} failed: $!");
    }
} #}}}

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