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#!/usr/bin/perl -w |
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|
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use strict; |
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|
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use CGI::Simple; |
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use CGI::Carp qw(fatalsToBrowser warningsToBrowser); |
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use Search::Estraier; |
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use YAML::Syck; |
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use JSON::Syck; |
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use Data::Dump qw/dump/; |
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|
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my $q = new CGI::Simple; |
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print qq{Content-type: text/html\n\r\n\r}; |
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|
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my $config = LoadFile('config.yml'); |
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|
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my $v = { |
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search => '', |
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hits => 0, |
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page => 0, |
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max_page => 0, |
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time => '', |
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id => time() . rand(99), |
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}; |
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|
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my $json; |
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|
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sub debug { |
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my ($text,$var) = @_; |
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print "<pre>$text = ", dump($var), "</pre>"; |
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} |
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|
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#debug('config', $config); |
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|
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sub json { |
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return |
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'<textarea id="json" style="display:none">' . |
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$q->escapeHTML( JSON::Syck::Dump( $v ) ) . |
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'</textarea>'; |
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} |
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|
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sub sort_order { |
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my $out; |
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|
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my $sort = $q->param('sort'); |
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|
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$out .= '<select name="sort" id="sort">'; |
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|
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foreach my $s (@{ $config->{estraier}->{order} }) { |
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my ($text,$value) = %{$s}; |
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$out .= qq{<option value="$value"} . |
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( $sort eq $value ? ' selected' : '' ) . |
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qq{>$text</option>}; |
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} |
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|
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$out .= '</select>'; |
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} |
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|
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sub get_results { |
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my $p = {@_}; |
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|
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my ($search,$page) = ( $p->{search} , $p->{page}); |
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|
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sub next_page { |
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return '<div id="next_page">' . |
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join("\n", @_) . json() . '</div>'; |
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} |
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|
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if (! $search || $search =~ m/^\s*$/) { |
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$v->{status} = 'Enter search query'; |
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return next_page(); |
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} |
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|
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if (! $page) { |
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$v->{status} = 'Error: no page number?'; |
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return next_page(); |
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} |
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|
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$search = join(" AND ", split(/\s+/, $search)) unless ($search =~ m/(?:AND|OR|\[|\])/); |
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$v->{search} = $search; |
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|
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$v->{page} = $page; |
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|
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my $node = new Search::Estraier::Node(%{ $config->{estraier} }); |
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|
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my $on_page = 30; |
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my $skip = ( $page - 1 ) * $on_page; |
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|
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my $cond = new Search::Estraier::Condition; |
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$cond->set_phrase( $search ); |
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$cond->set_max( $on_page ); |
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$cond->set_skip( $skip ); |
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$cond->set_order( $p->{sort} ) if ($p->{sort}); |
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|
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my $nres = $node->search($cond, ( $config->{estraier}->{depth} || 0 ) ); |
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|
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my $out; |
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|
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if (defined($nres)) { |
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|
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if ($nres->doc_num == 0) { |
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$v->{status} = qq{<strong>Error getting results for page $page.</strong>}; |
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return next_page('<strong>No results found.</strong>'); |
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} |
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|
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$v->{hits} = $nres->hits; |
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$v->{time} = $nres->hint('TIME'); |
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$v->{max_page} = int( ($nres->hits + $on_page - 1) / $on_page ); |
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|
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$v->{status} = qq{ |
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Got <b>$v->{hits}</b> results for <tt>$v->{search}</tt> |
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in <em>$v->{time} s</em> |
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}; |
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|
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sub html_snippet { |
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my $text = shift || return; |
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my $out = ''; |
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foreach my $s (split(/[\n\r]{2}/, $text)) { |
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$out .= ' ... ' if ($out); |
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my ($pre,$hit,$post) = split(/\n/,$s,3); |
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$hit =~ s/\t.*$//; |
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$out .= |
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$q->escapeHTML( $pre || '' ) . '<b>' . |
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$q->escapeHTML( $hit || '' ) . '</b>' . |
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$q->escapeHTML( $post || ''); |
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} |
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return $out; |
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} |
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|
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sub attr_regex { |
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my ($rdoc,$attr) = @_; |
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my $text = $rdoc->attr( $attr ); |
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return unless defined($text); |
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|
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if (my $r = $config->{estraier}->{attr_regex}->{$attr} ) { |
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my $do = '$text =~ ' . $r . ';'; |
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eval $do; |
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if ($@) { |
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warn "eval $do failed: $@\n"; |
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} |
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} |
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return $text; |
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} |
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|
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my @template; |
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open(my $t, 'result.html') || die "result.html: $!"; |
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while(<$t>) { |
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push @template, $_; |
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} |
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close($t); |
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|
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# for each document in results |
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for my $i ( 0 ... $nres->doc_num - 1 ) { |
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|
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my $rdoc = $nres->get_doc($i); |
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my $uri = attr_regex( $rdoc, '@uri' ); |
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my $nr = $skip + $i + 1; |
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|
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map { |
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my $l = $_; |
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$l =~ s/<%(.+?)%>/eval "$1"/ge; |
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$out .= $l; |
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} @template; |
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|
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} |
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|
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} else { |
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$out .= 'error: ' . $node->status; |
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} |
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|
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if ($v->{page} == $v->{max_page}) { |
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$out .= next_page('<br/><strong>All results shown</strong>'); |
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} else { |
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$out .= next_page( |
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'<br/><strong>Loading results...</strong><br/>', |
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'If you are using the scroll bar, release the mouse to see more results.' |
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); |
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} |
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|
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return $out; |
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|
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} |
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|
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if ($q->path_info() eq '/snippet') { |
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|
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print get_results( |
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search => $q->param('search') || '', |
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page => $q->param('page') || 0, |
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sort => $q->param('sort') || undef, |
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); |
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|
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|
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} else { |
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|
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my $get_results = get_results( |
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search => $q->param('search') || '', |
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page => 1, |
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sort => $q->param('sort') || undef, |
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); |
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|
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my $f = $q->path_info; |
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$f =~ s/\W+//g; |
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$f ||= 'search'; |
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$f .= '.html'; |
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open(my $s, $f) || die "$f: $!"; |
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while(<$s>) { |
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s/<%(.+?)%>/eval "$1"/ge; |
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print; |
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} |
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close($s); |
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|
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} |
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