<?php
/**!info**
{
	"Plugin Name"  : "plugin_specialsearch_title",
	"Plugin URI"   : "http://enanocms.org/",
	"Description"  : "plugin_specialsearch_desc",
	"Author"       : "Dan Fuhry",
	"Version"      : "1.1.6",
	"Author URI"   : "http://enanocms.org/"
}
**!*/

/*
 * Enano - an open-source CMS capable of wiki functions, Drupal-like sidebar blocks, and everything in between
 * Copyright (C) 2006-2009 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('session_started', 'SpecialSearch_paths_init();');

function SpecialSearch_paths_init()
{
	register_special_page('SearchRebuild', 'specialpage_search_rebuild');
	register_special_page('Search', 'specialpage_search');
}

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>');
	}
	$template->header();
	@set_time_limit(0);
	echo '<p>';
	if($paths->rebuild_search_index(true))
		echo '</p><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;
	global $lang;
	
	require_once(ENANO_ROOT.'/includes/search.php');
	
	$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 . '" />&nbsp;<input tabindex="2" type="submit" value="' . $lang->get('search_btn_search') . '" />&nbsp;<a href="' . makeUrlNS('Special', 'Search') . '">' . $lang->get('search_btn_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']) ), $word_list);
		$warn = array_unique($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">{lang:search_lbl_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']);
			$result['url_highlight'] = str_replace(array('<highlight>', '</highlight>'), array('<span class="url-search-term">', '</span>'), $result['url_highlight']);
			if ( $result['page_length'] >= 1048576 )
			{
				$result['page_length'] = round($result['page_length'] / 1048576, 1);
				$length_unit = $lang->get('etc_unit_megabytes_short');
			}
			else if ( $result['page_length'] >= 1024 )
			{
				$result['page_length'] = round($result['page_length'] / 1024, 1);
				$length_unit = $lang->get('etc_unit_kilobytes_short');
			}
			else
			{
				$length_unit = $lang->get('etc_unit_bytes');
			}
			//$url = makeUrlComplete($result['namespace'], $result['page_id']);
			//$url = preg_replace('/\?.+$/', '', $url);
			$url = $result['url_highlight'];
			
			$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'], $result['page_id'], false, true) . ( isset($result['url_append']) ? $result['url_append'] : '' ),
 				'PAGE_LENGTH_UNIT' => $length_unit,
 				'PAGE_URL' => $url,
 				'PAGE_NOTE' => ( isset($result['page_note']) ? $result['page_note'] . ' ' : '' )
				));
			$has_content = ( $result['namespace'] == 'Special' || !empty($result['zero_length']) );
			
			$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 );
		// for plugin compatibility:
		$offset =& $start;
		$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_detail = $lang->get('search_msg_result_detail', array(
				'start_string' => $start_string,
				'per_string' => $per_string,
				'q_trim' => $q_trim,
				'num_results' => $num_results,
				'search_time' => $search_time
			));
		$result_string = ( count($results) > 0 ) ? $result_detail : $lang->get('search_msg_no_results');
		
		echo '<div class="search-hibar">
						<div style="float: right;">
							' . $result_string . '
						</div>
						<b>' . $lang->get('search_lbl_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>' . $lang->get('search_err_query_title') . '</b><br />
						' . $lang->get('search_err_query_body');
			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;">' . $lang->get('search_body_no_results_title', array('query' => htmlspecialchars($q))) . '</h3>';
			echo $lang->get('search_body_no_results_body', array(
					'query' => htmlspecialchars($q),
					'create_url' => makeUrl($q),
					'special_url' => makeUrlNS('Special', 'SpecialPages'),
				));
		}
		$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"><?php echo $lang->get('search_th_advanced_search'); ?></th></tr>
					<tr>
						<td class="row1"><?php echo $lang->get('search_lbl_field_any'); ?></td>
						<td class="row1"><input type="text" name="words_any" size="40" /></td>
					</tr>
					<tr>
						<td class="row2"><?php echo $lang->get('search_lbl_field_exact'); ?></td>
						<td class="row2"><input type="text" name="exact_phrase" size="40" /></td>
					</tr>
					<tr>
						<td class="row1"><?php echo $lang->get('search_lbl_field_none'); ?></td>
						<td class="row1"><input type="text" name="exclude_words" size="40" /></td>
					</tr>
					<tr>
						<td class="row2"><?php echo $lang->get('search_lbl_field_all'); ?></td>
						<td class="row2"><input type="text" name="require_words" size="40" /></td>
					</tr>
					<tr>
						<td class="row1">
							<label for="chk_case"><?php echo $lang->get('search_lbl_field_casesensitive'); ?></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="<?php echo $lang->get('search_btn_search'); ?>" />
						</td>
					</tr>
				</table>
			</div>
		</form>
		<?php
	}
	
	$template->footer();
}

?>