<?php
/*
Plugin Name: Search UI/frontend
Plugin URI: http://enanocms.org/
Description: Provides the page Special:Search, which is a frontend to the Enano search engine.
Author: Dan Fuhry
Version: 1.0.2
Author URI: http://enanocms.org/
*/
/*
* Enano - an open-source CMS capable of wiki functions, Drupal-like sidebar blocks, and everything in between
* Version 1.0.2
* Copyright (C) 2006-2007 Dan Fuhry
*
* This program is Free Software; you can redistribute and/or modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.
*/
$plugins->attachHook('base_classes_initted', '
global $paths;
$paths->add_page(Array(
\'name\'=>\'Rebuild search index\',
\'urlname\'=>\'SearchRebuild\',
\'namespace\'=>\'Special\',
\'special\'=>0,\'visible\'=>1,\'comments_on\'=>0,\'protected\'=>1,\'delvotes\'=>0,\'delvote_ips\'=>\'\',
));
$paths->add_page(Array(
\'name\'=>\'Search\',
\'urlname\'=>\'Search\',
\'namespace\'=>\'Special\',
\'special\'=>0,\'visible\'=>1,\'comments_on\'=>0,\'protected\'=>1,\'delvotes\'=>0,\'delvote_ips\'=>\'\',
));
');
function page_Special_SearchRebuild()
{
global $db, $session, $paths, $template, $plugins; // Common objects
if(!$session->get_permissions('mod_misc')) die_friendly('Unauthorized', '<p>You need to be an administrator to rebuild the search index</p>');
$template->header();
@set_time_limit(0);
if($paths->rebuild_search_index(true))
echo '<p>Index rebuilt!</p>';
else
echo '<p>Index was not rebuilt due to an error.';
$template->footer();
}
function page_Special_Search()
{
global $db, $session, $paths, $template, $plugins; // Common objects
global $aggressive_optimize_html;
$aggressive_optimize_html = false;
if ( !$q = $paths->getParam(0) )
$q = ( isset($_GET['q']) ) ? $_GET['q'] : '';
if(isset($_GET['words_any']))
{
$q = '';
if(!empty($_GET['words_any']))
{
$q .= $_GET['words_any'] . ' ';
}
if(!empty($_GET['exact_phrase']))
{
$q .= '"' . $_GET['exact_phrase'] . '" ';
}
if(!empty($_GET['exclude_words']))
{
$not = explode(' ', $_GET['exclude_words']);
foreach ( $not as $i => $foo )
{
$not[$i] = '-' . $not[$i];
}
$q .= implode(' ', $not) . ' ';
}
if(!empty($_GET['require_words']))
{
$req = explode(' ', $_GET['require_words']);
foreach ( $req as $i => $foo )
{
$req[$i] = '+' . $req[$i];
}
$q .= implode(' ', $req) . ' ';
}
}
$q = trim($q);
$template->header();
$qin = ( isset($q) ) ? str_replace('"', '\"', htmlspecialchars($q)) : '';
$search_form = '<form action="' . makeUrlNS('Special', 'Search') . '">
<input type="text" tabindex="1" name="q" size="50" value="' . $qin . '" /> <input tabindex="2" type="submit" value="Search" /> <a href="' . makeUrlNS('Special', 'Search') . '">Advanced search</a>
' . ( $session->auth_level > USER_LEVEL_MEMBER ? '<input type="hidden" name="auth" value="' . $session->sid_super . '" />' : '' ) . '
</form>';
if ( !empty($q) )
{
$search_start = microtime_float();
$results = perform_search($q, $warn, ( isset($_GET['match_case']) ));
$warn = array_unique($warn);
if ( file_exists( ENANO_ROOT . '/themes/' . $template->theme . '/search-result.tpl' ) )
{
$parser = $template->makeParser('search-result.tpl');
}
else
{
$tpl_code = <<<LONGSTRING
<!-- Start search result -->
<div class="search-result">
<p>
<h3><a href="{RESULT_URL}"><span class="search-result-annotation">{PAGE_NOTE}</span>{PAGE_TITLE}</a></h3>
{PAGE_TEXT}
<span class="search-result-url">{PAGE_URL}</span> -
<!-- BEGINNOT special_page --><span class="search-result-info">{PAGE_LENGTH} {PAGE_LENGTH_UNIT}</span> -<!-- END special_page -->
<span class="search-result-info">Relevance: {RELEVANCE_SCORE}%</span>
</p>
</div>
<!-- Finish search result -->
LONGSTRING;
$parser = $template->makeParserText($tpl_code);
}
foreach ( $results as $i => $_ )
{
$result =& $results[$i];
$result['page_text'] = str_replace(array('<highlight>', '</highlight>'), array('<span class="search-term">', '</span>'), $result['page_text']);
if ( !empty($result['page_text']) )
$result['page_text'] .= '<br />';
$result['page_name'] = str_replace(array('<highlight>', '</highlight>'), array('<span class="title-search-term">', '</span>'), $result['page_name']);
if ( $result['page_length'] >= 1048576 )
{
$result['page_length'] = round($result['page_length'] / 1048576, 1);
$length_unit = 'MB';
}
else if ( $result['page_length'] >= 1024 )
{
$result['page_length'] = round($result['page_length'] / 1024, 1);
$length_unit = 'KB';
}
else
{
$length_unit = 'bytes';
}
$url = makeUrlComplete($result['namespace'], $result['page_id']);
$url = preg_replace('/\?.+$/', '', $url);
$parser->assign_vars(array(
'PAGE_TITLE' => $result['page_name'],
'PAGE_TEXT' => $result['page_text'],
'PAGE_LENGTH' => $result['page_length'],
'RELEVANCE_SCORE' => $result['score'],
'RESULT_URL' => makeUrlNS($result['namespace'], $result['page_id'], false, true),
'PAGE_LENGTH_UNIT' => $length_unit,
'PAGE_URL' => $url,
'PAGE_NOTE' => ( isset($result['page_note']) ? $result['page_note'] . ' ' : '' )
));
$has_content = ( $result['namespace'] == 'Special' );
$code = $plugins->setHook('search_global_results');
foreach ( $code as $cmd )
{
eval($cmd);
}
$parser->assign_bool(array(
'special_page' => $has_content
));
$result = $parser->run();
}
unset($result);
$per_page = 10;
$start = ( isset($_GET['start']) ? intval($_GET['start']) : 0 );
$start_string = $start + 1;
$per_string = $start_string + $per_page - 1;
$num_results = count($results);
if ( $per_string > $num_results )
$per_string = $num_results;
$search_time = microtime_float() - $search_start;
$search_time = round($search_time, 3);
$q_trim = ( strlen($q) > 30 ) ? substr($q, 0, 27) . '...' : $q;
$q_trim = htmlspecialchars($q_trim);
$result_string = ( count($results) > 0 ) ? "Results <b>$start_string</b> - <b>$per_string</b> of about <b>$num_results</b> for <b>" . $q_trim . "</b> in {$search_time}s." : 'No results.';
echo '<div class="search-hibar">
<div style="float: right;">
' . $result_string . '
</div>
<b>Site search</b>
</div>
<div class="search-lobar">
' . $search_form . '
</div>';
if ( count($warn) > 0 )
{
echo '<div class="warning-box" style="margin: 10px 0 0 0;">';
echo '<b>Some problems were encountered during your search.</b><br />
There was a problem with your search query, and as a result there may be a reduced number of search results.';
echo '<ul><li>' . implode('</li><li>', $warn) . '</li></ul>';
echo '</div>';
}
if ( count($results) > 0 )
{
$html = paginate_array(
$results,
count($results),
makeUrlNS('Special', 'Search', 'q=' . str_replace('%', '%%', htmlspecialchars(urlencode($q))) . '&start=%s'),
$start,
$per_page
);
echo $html;
}
else
{
// No results for the search
echo '<h3 style="font-weight: normal;">Your search for <b>"' . htmlspecialchars($q) . '"</b> didn\'t turn up any results.</h3>';
echo '<p>There are a few things you can try:</p>';
echo '<ul>
<li>Were you looking for a specific Special page? Special pages are not searchable. You may want to see a <a href="' . makeUrlNS('Special', 'SpecialPages') . '">list of special pages</a>.</li>
<li>If you have the appropriate permissions, you can <a href="' . makeUrl($q) . '#do:edit">start the ' . htmlspecialchars($q) . ' page</a>.</li>
<li>Try using fewer keywords. You can get broader results if you remove quotes from your search query.</li>
<li>Did your search trigger any warnings? Sometimes a search can be cancelled if there aren\'t any terms in a search query that are 4 characters or greater in length.</li>
</ul>';
}
$code = $plugins->setHook('search_results');
foreach ( $code as $cmd )
{
eval($cmd);
}
}
else
{
?>
<form action="<?php echo makeUrl($paths->page); ?>" method="get">
<?php if ( urlSeparator == '&' ): ?>
<input type="hidden" name="title" value="<?php echo $paths->nslist['Special'] . 'Search'; ?>" />
<?php
echo ( $session->auth_level > USER_LEVEL_MEMBER ? '<input type="hidden" name="auth" value="' . $session->sid_super . '" />' : '' );
endif; ?>
<div class="tblholder">
<table border="0" style="width: 100%;" cellspacing="1" cellpadding="4">
<tr><th colspan="2">Advanced Search</th></tr>
<tr>
<td class="row1">Search for pages with <b>any of these words</b>:</td>
<td class="row1"><input type="text" name="words_any" size="40" /></td>
</tr>
<tr>
<td class="row2">with <b>this exact phrase</b>:</td>
<td class="row2"><input type="text" name="exact_phrase" size="40" /></td>
</tr>
<tr>
<td class="row1">with <b>none of these words</b>:</td>
<td class="row1"><input type="text" name="exclude_words" size="40" /></td>
</tr>
<tr>
<td class="row2">with <b>all of these words</b>:</td>
<td class="row2"><input type="text" name="require_words" size="40" /></td>
</tr>
<tr>
<td class="row1">
<label for="chk_case">Case-sensitive search:</label>
</td>
<td class="row1">
<input type="checkbox" name="match_case" id="chk_case" />
</td>
</tr>
<tr>
<th colspan="2" class="subhead">
<input type="submit" name="do_search" value="Search" />
</td>
</tr>
</table>
</div>
</form>
<?php
}
$template->footer();
}
?>