jquery/no_pager/index.cgi

#!/usr/bin/perl -w

use strict;

use CGI::Simple;
use CGI::Carp qw(fatalsToBrowser warningsToBrowser);
use Search::Estraier;
use YAML::Syck;
use JSON::Syck;
use Data::Dump qw/dump/;

my $q = new CGI::Simple;
print qq{Content-type: text/html\n\r\n\r};

my $config = LoadFile('config.yml');

my $v = {
        search => '',
        hits => 0,
        page => 0,
        max_page => 0,
        time => '',
        id => time() . rand(99),
};

my $json;

#warn "config = ", dump($config);

sub json {
        return
        '<textarea id="json" style="display:none">' .
        $q->escapeHTML( JSON::Syck::Dump( $v ) ) .
        '</textarea>';
}

sub get_results {
        my $p = {@_};

        my ($search,$page) = ( $p->{search} || '', $p->{page} || 0);

        warn "get_results( $search , $page )\n";

        sub next_page {
                return '<div id="next_page">' .
                        join("\n", @_) . json() . '</div>';
        }

        if (! $search || $search =~ m/^\s*$/) {
                $v->{status} = 'Enter search query';
                return next_page();
        }

        if (! $page) {
                $v->{status} = 'Error: no page number?';
                return next_page();
        }

        $search = join(" AND ", split(/\s+/, $search)) unless ($search =~ m/(?:AND|OR|\[|\])/);
        $v->{search} = $search;

        $v->{page} = $page;

        my $node = new Search::Estraier::Node(%{ $config->{estraier} });

        my $on_page = 30;
        my $skip = ( $page - 1 ) * $on_page;

        my $cond = new Search::Estraier::Condition;
        $cond->set_phrase( $search );
        $cond->set_max( $on_page );
        $cond->set_skip( $skip );

        my $nres = $node->search($cond, ( $config->{estraier}->{depth} || 0 ) );

        my $out;

        if (defined($nres)) {
                $v->{hits} = $nres->hits;
                $v->{time} = $nres->hint('TIME');
                $v->{max_page} = int( ($nres->hits + $on_page - 1) / $on_page );

                $v->{status} = qq{
                        Got <b>$v->{hits}</b> results for <tt>$v->{search}</tt>
                        in <em>$v->{time} s</em>
                };

                sub html_snippet {
                        my $text = shift || return;
                        my $out = '';
                        foreach my $s (split(/[\n\r]{2}/, $text)) {
                                $out .= ' ... ' if ($out);
                                my ($pre,$hit,$post) = split(/\n/,$s,3);
                                $hit =~ s/\t.*$//;
                                $out .= 
                                        $q->escapeHTML( $pre || '' ) . '<b>' .
                                        $q->escapeHTML( $hit || '' ) . '</b>' .
                                        $q->escapeHTML( $post || '');
                        }
                        return $out;
                }

                sub attr_regex {
                        my ($rdoc,$attr) = @_;
                        my $text = $rdoc->attr( $attr );
                        return unless defined($text);

                        if (my $r = $config->{estraier}->{attr_regex}->{$attr} ) {
                                my $do = '$text =~ ' . $r . ';';
                                eval $do;
                                if ($@) {
                                        warn "eval $do failed: $@\n";
                                }
                        }
                        return $text;
                }

                # for each document in results
                for my $i ( 0 ... $nres->doc_num - 1 ) {

                        my $rdoc = $nres->get_doc($i);

                        $out .= '<div class="item">' .
                                '<h1>' . $rdoc->attr('@title') . '</h1>' .
                                '<p>' . html_snippet( $rdoc->snippet ) . '</p>' .
                                '<h2>' . attr_regex( $rdoc, 'source' ) . '</h2>';
                        my $uri = attr_regex( $rdoc, '@uri' );
                        $out .=
                                qq{<a href="$uri"><tt>$uri</tt></a> } .
                                attr_regex( $rdoc, '@mdate' ) .
                                ' [' . ( $skip + $i + 1 ) . ']';
                }

        } else {
                $out .= 'error: ' . $node->status;
        }

        if ($v->{page} == $v->{max_page}) {
                $out .= next_page('<strong>All results shown</strong>');
        } else {
                $out .= next_page(
                        '<strong>Loading results...</strong><br/>',
                        'If you are using the scroll bar, release the mouse to see more results.'
                );
        }

        return $out;

}

if ($q->path_info() eq '/snippet') {

        print get_results(
                search => $q->param('search'),
                page => $q->param('page'),
        );


} else {

        my $get_results = get_results(
                search => $q->param('search'),
                page => 1,
        );

        my $f = $q->path_info;
        $f =~ s/\W+//g;
        $f ||= 'search';
        $f .= '.html';
        open(my $s, $f)  || die "$f: $!";
        while(<$s>) {
                s/<%(.+?)%>/eval "$1"/ge;
                print;
        }
        close($f);

}
1	dpavlin	2	#!/usr/bin/perl -w
2
3			use strict;
4
5			use CGI::Simple;
6	dpavlin	5	use CGI::Carp qw(fatalsToBrowser warningsToBrowser);
7	dpavlin	2	use Search::Estraier;
8	dpavlin	5	use YAML::Syck;
9	dpavlin	15	use JSON::Syck;
10	dpavlin	5	use Data::Dump qw/dump/;
11	dpavlin	2
12			my $q = new CGI::Simple;
13			print qq{Content-type: text/html\n\r\n\r};
14
15	dpavlin	5	my $config = LoadFile('config.yml');
16
17	dpavlin	15	my $v = {
18			search => '',
19			hits => 0,
20			page => 0,
21			max_page => 0,
22			time => '',
23			id => time() . rand(99),
24			};
25
26			my $json;
27
28	dpavlin	5	#warn "config = ", dump($config);
29
30	dpavlin	17	sub json {
31			return
32			'<textarea id="json" style="display:none">' .
33			$q->escapeHTML( JSON::Syck::Dump( $v ) ) .
34			'</textarea>';
35			}
36
37	dpavlin	15	sub get_results {
38	dpavlin	18	my $p = {@_};
39	dpavlin	2
40	dpavlin	18	my ($search,$page) = ( $p->{search} \|\| '', $p->{page} \|\| 0);
41
42	dpavlin	17	warn "get_results( $search , $page )\n";
43
44	dpavlin	18	sub next_page {
45			return '<div id="next_page">' .
46			join("\n", @_) . json() . '</div>';
47			}
48
49	dpavlin	17	if (! $search \|\| $search =~ m/^\s*$/) {
50	dpavlin	15	$v->{status} = 'Enter search query';
51	dpavlin	18	return next_page();
52	dpavlin	15	}
53	dpavlin	2
54	dpavlin	15	if (! $page) {
55			$v->{status} = 'Error: no page number?';
56	dpavlin	18	return next_page();
57	dpavlin	15	}
58	dpavlin	2
59	dpavlin	15	$search = join(" AND ", split(/\s+/, $search)) unless ($search =~ m/(?:AND\|OR\|\[\|\])/);
60	dpavlin	18	$v->{search} = $search;
61	dpavlin	2
62	dpavlin	15	$v->{page} = $page;
63	dpavlin	2
64	dpavlin	15	my $node = new Search::Estraier::Node(%{ $config->{estraier} });
65	dpavlin	2
66	dpavlin	15	my $on_page = 30;
67			my $skip = ( $page - 1 ) * $on_page;
68	dpavlin	2
69	dpavlin	15	my $cond = new Search::Estraier::Condition;
70			$cond->set_phrase( $search );
71			$cond->set_max( $on_page );
72			$cond->set_skip( $skip );
73	dpavlin	2
74	dpavlin	15	my $nres = $node->search($cond, ( $config->{estraier}->{depth} \|\| 0 ) );
75	dpavlin	2
76	dpavlin	15	my $out;
77	dpavlin	2
78	dpavlin	15	if (defined($nres)) {
79			$v->{hits} = $nres->hits;
80			$v->{time} = $nres->hint('TIME');
81			$v->{max_page} = int( ($nres->hits + $on_page - 1) / $on_page );
82
83			$v->{status} = qq{
84			Got <b>$v->{hits}</b> results for <tt>$v->{search}</tt>
85			in <em>$v->{time} s</em>
86			};
87
88			sub html_snippet {
89			my $text = shift \|\| return;
90			my $out = '';
91			foreach my $s (split(/[\n\r]{2}/, $text)) {
92			$out .= ' ... ' if ($out);
93			my ($pre,$hit,$post) = split(/\n/,$s,3);
94			$hit =~ s/\t.*$//;
95			$out .=
96			$q->escapeHTML( $pre \|\| '' ) . '<b>' .
97			$q->escapeHTML( $hit \|\| '' ) . '</b>' .
98			$q->escapeHTML( $post \|\| '');
99			}
100			return $out;
101	dpavlin	2	}
102
103	dpavlin	15	sub attr_regex {
104			my ($rdoc,$attr) = @_;
105			my $text = $rdoc->attr( $attr );
106			return unless defined($text);
107	dpavlin	2
108	dpavlin	15	if (my $r = $config->{estraier}->{attr_regex}->{$attr} ) {
109			my $do = '$text =~ ' . $r . ';';
110			eval $do;
111			if ($@) {
112			warn "eval $do failed: $@\n";
113			}
114	dpavlin	14	}
115	dpavlin	15	return $text;
116	dpavlin	14	}
117
118	dpavlin	15	# for each document in results
119			for my $i ( 0 ... $nres->doc_num - 1 ) {
120	dpavlin	2
121	dpavlin	15	my $rdoc = $nres->get_doc($i);
122	dpavlin	2
123	dpavlin	15	$out .= '<div class="item">' .
124			'<h1>' . $rdoc->attr('@title') . '</h1>' .
125			'<p>' . html_snippet( $rdoc->snippet ) . '</p>' .
126			'<h2>' . attr_regex( $rdoc, 'source' ) . '</h2>';
127			my $uri = attr_regex( $rdoc, '@uri' );
128			$out .=
129			qq{<a href="$uri"><tt>$uri</tt></a> } .
130			attr_regex( $rdoc, '@mdate' ) .
131			' [' . ( $skip + $i + 1 ) . ']';
132			}
133	dpavlin	2
134	dpavlin	15	} else {
135			$out .= 'error: ' . $node->status;
136	dpavlin	2	}
137	dpavlin	15
138	dpavlin	18	if ($v->{page} == $v->{max_page}) {
139			$out .= next_page('<strong>All results shown</strong>');
140			} else {
141			$out .= next_page(
142			'<strong>Loading results...</strong><br/>',
143			'If you are using the scroll bar, release the mouse to see more results.'
144			);
145			}
146	dpavlin	15
147	dpavlin	18	return $out;
148
149	dpavlin	2	}
150
151	dpavlin	15	if ($q->path_info() eq '/snippet') {
152	dpavlin	2
153	dpavlin	18	print get_results(
154			search => $q->param('search'),
155			page => $q->param('page'),
156	dpavlin	15	);
157	dpavlin	2
158
159			} else {
160
161	dpavlin	18	my $get_results = get_results(
162			search => $q->param('search'),
163			page => 1,
164			);
165	dpavlin	2
166			my $f = $q->path_info;
167			$f =~ s/\W+//g;
168			$f \|\|= 'search';
169			$f .= '.html';
170			open(my $s, $f) \|\| die "$f: $!";
171			while(<$s>) {
172	dpavlin	4	s/<%(.+?)%>/eval "$1"/ge;
173	dpavlin	2	print;
174			}
175			close($f);
176
177			}