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;

sub debug {
        my ($text,$var) = @_;
        print "<pre>$text = ", dump($var), "</pre>";
}

#debug('config', $config);

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

sub sort_order {
        my $out;

        my $sort = $q->param('sort');

        $out .= '<select name="sort" id="sort">';

        foreach my $s (@{ $config->{estraier}->{order} }) {
                my ($text,$value) = %{$s};
                $out .= qq{<option value="$value"} . 
                        ( $sort eq $value ? ' selected' : '' ) .
                        qq{>$text</option>};
        }

        $out .= '</select>';
}

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

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

        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 );
        $cond->set_order( $p->{sort} ) if ($p->{sort});

        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>' .
                                '<strong>' . attr_regex( $rdoc, 'source' ) . '</strong>' .
                                ' [' . attr_regex( $rdoc, '@size' ) . ' bytes]<br/>';
                        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') || 0,
                sort => $q->param('sort') || undef,
        );


} else {

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

        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 $json;
27
28	dpavlin	20	sub debug {
29			my ($text,$var) = @_;
30			print "<pre>$text = ", dump($var), "</pre>";
31			}
32	dpavlin	5
33	dpavlin	20	#debug('config', $config);
34
35	dpavlin	17	sub json {
36			return
37			'<textarea id="json" style="display:none">' .
38			$q->escapeHTML( JSON::Syck::Dump( $v ) ) .
39			'</textarea>';
40			}
41
42	dpavlin	20	sub sort_order {
43			my $out;
44
45			my $sort = $q->param('sort');
46
47			$out .= '<select name="sort" id="sort">';
48
49			foreach my $s (@{ $config->{estraier}->{order} }) {
50			my ($text,$value) = %{$s};
51			$out .= qq{<option value="$value"} .
52			( $sort eq $value ? ' selected' : '' ) .
53			qq{>$text</option>};
54			}
55
56			$out .= '</select>';
57			}
58
59	dpavlin	15	sub get_results {
60	dpavlin	18	my $p = {@_};
61	dpavlin	2
62	dpavlin	20	my ($search,$page) = ( $p->{search} , $p->{page});
63	dpavlin	18
64			sub next_page {
65			return '<div id="next_page">' .
66			join("\n", @_) . json() . '</div>';
67			}
68
69	dpavlin	17	if (! $search \|\| $search =~ m/^\s*$/) {
70	dpavlin	15	$v->{status} = 'Enter search query';
71	dpavlin	18	return next_page();
72	dpavlin	15	}
73	dpavlin	2
74	dpavlin	15	if (! $page) {
75			$v->{status} = 'Error: no page number?';
76	dpavlin	18	return next_page();
77	dpavlin	15	}
78	dpavlin	2
79	dpavlin	15	$search = join(" AND ", split(/\s+/, $search)) unless ($search =~ m/(?:AND\|OR\|\[\|\])/);
80	dpavlin	18	$v->{search} = $search;
81	dpavlin	2
82	dpavlin	15	$v->{page} = $page;
83	dpavlin	2
84	dpavlin	15	my $node = new Search::Estraier::Node(%{ $config->{estraier} });
85	dpavlin	2
86	dpavlin	15	my $on_page = 30;
87			my $skip = ( $page - 1 ) * $on_page;
88	dpavlin	2
89	dpavlin	15	my $cond = new Search::Estraier::Condition;
90			$cond->set_phrase( $search );
91			$cond->set_max( $on_page );
92			$cond->set_skip( $skip );
93	dpavlin	20	$cond->set_order( $p->{sort} ) if ($p->{sort});
94	dpavlin	2
95	dpavlin	15	my $nres = $node->search($cond, ( $config->{estraier}->{depth} \|\| 0 ) );
96	dpavlin	2
97	dpavlin	15	my $out;
98	dpavlin	2
99	dpavlin	15	if (defined($nres)) {
100			$v->{hits} = $nres->hits;
101			$v->{time} = $nres->hint('TIME');
102			$v->{max_page} = int( ($nres->hits + $on_page - 1) / $on_page );
103
104			$v->{status} = qq{
105			Got <b>$v->{hits}</b> results for <tt>$v->{search}</tt>
106			in <em>$v->{time} s</em>
107			};
108
109			sub html_snippet {
110			my $text = shift \|\| return;
111			my $out = '';
112			foreach my $s (split(/[\n\r]{2}/, $text)) {
113			$out .= ' ... ' if ($out);
114			my ($pre,$hit,$post) = split(/\n/,$s,3);
115			$hit =~ s/\t.*$//;
116			$out .=
117			$q->escapeHTML( $pre \|\| '' ) . '<b>' .
118			$q->escapeHTML( $hit \|\| '' ) . '</b>' .
119			$q->escapeHTML( $post \|\| '');
120			}
121			return $out;
122	dpavlin	2	}
123
124	dpavlin	15	sub attr_regex {
125			my ($rdoc,$attr) = @_;
126			my $text = $rdoc->attr( $attr );
127			return unless defined($text);
128	dpavlin	2
129	dpavlin	15	if (my $r = $config->{estraier}->{attr_regex}->{$attr} ) {
130			my $do = '$text =~ ' . $r . ';';
131			eval $do;
132			if ($@) {
133			warn "eval $do failed: $@\n";
134			}
135	dpavlin	14	}
136	dpavlin	15	return $text;
137	dpavlin	14	}
138
139	dpavlin	15	# for each document in results
140			for my $i ( 0 ... $nres->doc_num - 1 ) {
141	dpavlin	2
142	dpavlin	15	my $rdoc = $nres->get_doc($i);
143	dpavlin	2
144	dpavlin	15	$out .= '<div class="item">' .
145			'<h1>' . $rdoc->attr('@title') . '</h1>' .
146			'<p>' . html_snippet( $rdoc->snippet ) . '</p>' .
147	dpavlin	20	'<strong>' . attr_regex( $rdoc, 'source' ) . '</strong>' .
148			' [' . attr_regex( $rdoc, '@size' ) . ' bytes]<br/>';
149	dpavlin	15	my $uri = attr_regex( $rdoc, '@uri' );
150			$out .=
151			qq{<a href="$uri"><tt>$uri</tt></a> } .
152			attr_regex( $rdoc, '@mdate' ) .
153			' [' . ( $skip + $i + 1 ) . ']';
154			}
155	dpavlin	2
156	dpavlin	15	} else {
157			$out .= 'error: ' . $node->status;
158	dpavlin	2	}
159	dpavlin	15
160	dpavlin	18	if ($v->{page} == $v->{max_page}) {
161			$out .= next_page('<strong>All results shown</strong>');
162			} else {
163			$out .= next_page(
164			'<strong>Loading results...</strong><br/>',
165			'If you are using the scroll bar, release the mouse to see more results.'
166			);
167			}
168	dpavlin	15
169	dpavlin	18	return $out;
170
171	dpavlin	2	}
172
173	dpavlin	15	if ($q->path_info() eq '/snippet') {
174	dpavlin	2
175	dpavlin	18	print get_results(
176	dpavlin	19	search => $q->param('search') \|\| '',
177			page => $q->param('page') \|\| 0,
178	dpavlin	20	sort => $q->param('sort') \|\| undef,
179	dpavlin	15	);
180	dpavlin	2
181
182			} else {
183
184	dpavlin	18	my $get_results = get_results(
185	dpavlin	19	search => $q->param('search') \|\| '',
186	dpavlin	18	page => 1,
187	dpavlin	20	sort => $q->param('sort') \|\| undef,
188	dpavlin	18	);
189	dpavlin	2
190			my $f = $q->path_info;
191			$f =~ s/\W+//g;
192			$f \|\|= 'search';
193			$f .= '.html';
194			open(my $s, $f) \|\| die "$f: $!";
195			while(<$s>) {
196	dpavlin	4	s/<%(.+?)%>/eval "$1"/ge;
197	dpavlin	2	print;
198			}
199			close($f);
200
201			}