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GR0V Shell
GR0V shell
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<?php
/**
* @version $Id: search.php 14401 2010-01-26 14:10:00Z louis $
* @package Joomla
* @subpackage Search
* @copyright Copyright (C) 2005 - 2010 Open Source Matters. All rights reserved.
* @license GNU/GPL, see LICENSE.php
* Joomla! is free software. This version may have been modified pursuant to the
* GNU General Public License, and as distributed it includes or is derivative
* of works licensed under the GNU General Public License or other free or open
* source software licenses. See COPYRIGHT.php for copyright notices and
* details.
*/
// Check to ensure this file is included in Joomla!
defined('_JEXEC') or die( 'Restricted access' );
/**
* @package Joomla
* @subpackage Search
*/
class SearchHelper
{
function santiseSearchWord(&$searchword, $searchphrase)
{
$ignored = false;
$lang =& JFactory::getLanguage();
$search_ignore = array();
$tag = $lang->getTag();
$ignoreFile = $lang->getLanguagePath().DS.$tag.DS.$tag.'.ignore.php';
if (file_exists($ignoreFile)) {
include $ignoreFile;
}
// check for words to ignore
$aterms = explode( ' ', JString::strtolower( $searchword ) );
// first case is single ignored word
if ( count( $aterms ) == 1 && in_array( JString::strtolower( $searchword ), $search_ignore ) ) {
$ignored = true;
}
// filter out search terms that are too small
foreach( $aterms AS $aterm ) {
if (JString::strlen( $aterm ) < 3) {
$search_ignore[] = $aterm;
}
}
// next is to remove ignored words from type 'all' or 'any' (not exact) searches with multiple words
if ( count( $aterms ) > 1 && $searchphrase != 'exact' ) {
$pruned = array_diff( $aterms, $search_ignore );
$searchword = implode( ' ', $pruned );
}
return $ignored;
}
function limitSearchWord(&$searchword)
{
$restriction = false;
// limit searchword to 20 characters
if ( JString::strlen( $searchword ) > 20 ) {
$searchword = JString::substr( $searchword, 0, 19 );
$restriction = true;
}
// searchword must contain a minimum of 3 characters
if ( $searchword && JString::strlen( $searchword ) < 3 ) {
$searchword = '';
$restriction = true;
}
return $restriction;
}
function logSearch( $search_term )
{
global $mainframe;
$db =& JFactory::getDBO();
$params = &JComponentHelper::getParams( 'com_search' );
$enable_log_searches = $params->get('enabled');
$search_term = $db->getEscaped( trim( $search_term) );
if ( @$enable_log_searches )
{
$db =& JFactory::getDBO();
$query = 'SELECT hits'
. ' FROM #__core_log_searches'
. ' WHERE LOWER( search_term ) = "'.$search_term.'"'
;
$db->setQuery( $query );
$hits = intval( $db->loadResult() );
if ( $hits ) {
$query = 'UPDATE #__core_log_searches'
. ' SET hits = ( hits + 1 )'
. ' WHERE LOWER( search_term ) = "'.$search_term.'"'
;
$db->setQuery( $query );
$db->query();
} else {
$query = 'INSERT INTO #__core_log_searches VALUES ( "'.$search_term.'", 1 )';
$db->setQuery( $query );
$db->query();
}
}
}
/**
* Prepares results from search for display
*
* @param string The source string
* @param int Number of chars to trim
* @param string The searchword to select around
* @return string
*/
function prepareSearchContent( $text, $length = 200, $searchword )
{
// strips tags won't remove the actual jscript
$text = preg_replace( "'<script[^>]*>.*?</script>'si", "", $text );
$text = preg_replace( '/{.+?}/', '', $text);
//$text = preg_replace( '/<a\s+.*?href="([^"]+)"[^>]*>([^<]+)<\/a>/is','\2', $text );
// replace line breaking tags with whitespace
$text = preg_replace( "'<(br[^/>]*?/|hr[^/>]*?/|/(div|h[1-6]|li|p|td))>'si", ' ', $text );
return SearchHelper::_smartSubstr( strip_tags( $text ), $length, $searchword );
}
/**
* Checks an object for search terms (after stripping fields of HTML)
*
* @param object The object to check
* @param string Search words to check for
* @param array List of object variables to check against
* @returns boolean True if searchTerm is in object, false otherwise
*/
function checkNoHtml($object, $searchTerm, $fields) {
$searchRegex = array(
'#<script[^>]*>.*?</script>#si',
'#<style[^>]*>.*?</style>#si',
'#<!.*?(--|]])>#si',
'#<[^>]*>#i'
);
$terms = explode(' ', $searchTerm);
if(empty($fields)) return false;
foreach($fields AS $field) {
if(!isset($object->$field)) continue;
$text = $object->$field;
foreach($searchRegex As $regex) {
$text = preg_replace($regex, '', $text);
}
foreach($terms AS $term) {
if(JString::stristr($text, $term) !== false) {
return true;
}
}
}
return false;
}
/**
* returns substring of characters around a searchword
*
* @param string The source string
* @param int Number of chars to return
* @param string The searchword to select around
* @return string
*/
function _smartSubstr($text, $length = 200, $searchword)
{
$textlen = JString::strlen($text);
$lsearchword = JString::strtolower($searchword);
$wordfound = false;
$pos = 0;
while ($wordfound === false && $pos < $textlen) {
if (($wordpos = @JString::strpos($text, ' ', $pos + $length)) !== false) {
$chunk_size = $wordpos - $pos;
} else {
$chunk_size = $length;
}
$chunk = JString::substr($text, $pos, $chunk_size);
$wordfound = JString::strpos(JString::strtolower($chunk), $lsearchword);
if ($wordfound === false) {
$pos += $chunk_size + 1;
}
}
if ($wordfound !== false) {
return (($pos > 0) ? '... ' : '') . $chunk . ' ...';
} else {
if (($wordpos = @JString::strpos($text, ' ', $length)) !== false) {
return JString::substr($text, 0, $wordpos) . ' ...';
} else {
return JString::substr($text, 0, $length);
}
}
}
}
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