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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' );
use Joomla\String\StringHelper;
use Joomla\CMS\Language\LanguageHelper;
if (!defined('DS')) define('DS',DIRECTORY_SEPARATOR);
require_once (JPATH_ADMINISTRATOR.DS.'components'.DS.'com_flexicontent'.DS.'defineconstants.php');
/**
* @package Joomla
* @subpackage Search
*/
class FLEXIadvsearchHelper
{
static function santiseSearchWord(&$searchword, $searchphrase, $min=2)
{
$ignored = false;
$lang = JFactory::getLanguage();
$lang_tag = $lang->getTag();
$search_prefix = JComponentHelper::getParams( 'com_flexicontent' )->get('add_search_prefix') ? 'vvv' : ''; // SEARCH WORD Prefix
$search_ignore = array();
$ignoreFile = LanguageHelper::getLanguagePath().DS.$lang_tag.DS.$lang_tag.'.ignore.php';
if (file_exists($ignoreFile))
{
include $ignoreFile;
}
// check for words to ignore
$aterms = explode(' ', StringHelper::strtolower($searchword));
// first case is single ignored word
if (count($aterms) === 1 && in_array(StringHelper::strtolower($searchword), $search_ignore))
{
$ignored = true;
}
// filter out search terms that are too small
foreach($aterms AS $aterm)
{
if (!$search_prefix && StringHelper::strlen( $aterm ) < $min)
{
$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);
}
// Set words that were removed due to being too short
JFactory::getApplication()->input->set('shortwords_sanitize', implode(' ', $search_ignore));
return $ignored;
}
static function limitSearchWord(&$searchword, $min=2, $max=20)
{
$restriction = false;
// maximum searchword length character limit
if (StringHelper::strlen($searchword) > $max)
{
$searchword = StringHelper::substr( $searchword, 0, $max );
$restriction = true;
}
// minimum searchword length character limit
if ($searchword && StringHelper::strlen($searchword) < $min)
{
$searchword = '';
$restriction = true;
}
return $restriction;
}
static function logSearch( $search_term )
{
$db = JFactory::getDbo();
$params = JComponentHelper::getParams('com_search');
$enable_log_searches = $params->get('enabled');
$search_term_quoted = $db->Quote(trim($search_term));
if ($enable_log_searches)
{
$query = 'SELECT hits'
. ' FROM #__core_log_searches'
. ' WHERE LOWER( search_term ) = ' . $search_term_quoted;
$hits = (int) $db->setQuery($query)->loadResult();
if ($hits)
{
$query = 'UPDATE #__core_log_searches'
. ' SET hits = ( hits + 1 )'
. ' WHERE LOWER( search_term ) = ' . $search_term_quoted;
$db->setQuery($query)->execute();
}
else
{
$query = 'INSERT INTO #__core_log_searches VALUES (' . $search_term_quoted . ', 1 )';
$db->setQuery($query)->execute();
}
}
}
/**
* 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
*/
static function prepareSearchContent( $text, $length, $searchword_arr )
{
// 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 );
// Do not try past the text's length
$length = min(StringHelper::strlen($text), $length);
if (($wordpos = StringHelper::strpos($text, ' ', $length)) !== false) {
$start_part = StringHelper::substr($text, 0, $wordpos) . ' ...';
} else {
$start_part = StringHelper::substr($text, 0, $length);
}
$parts = array();
foreach ($searchword_arr as $searchword) {
$wordpos = false;
$part = FLEXIadvsearchHelper::_smartSubstr( strip_tags( $text ), $length, $searchword, $wordpos);
if ($wordpos !== false) {
$parts[$searchword] = $part;
$positions[$wordpos] = $searchword;
}
}
if ( count($parts) ) {
$oparts = array();
ksort($positions);
foreach ($positions as $wordpos => $searchword) {
$oparts[ $searchword ] = $parts[$searchword];
}
return $oparts;
} else {
return array('' => $start_part);
}
}
/**
* Checks an object for search terms (after stripping fields of HTML)
*
* @param object The object to check
* @param string Search words to check for
* @param array List of object variables to check against
* @returns boolean True if searchTerm is in object, false otherwise
*/
static function checkNoHtml($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 $term) {
if(StringHelper::stristr($text, $term) !== false) {
return true;
}
}
}
return false;
}
/**
* returns substring of characters around a searchword
*
* @param string The source string
* @param int Number of chars to return
* @param string The searchword to select around
* @return string
*/
static function _smartSubstr($text, $length, $searchword, &$wordpos)
{
$textlen = StringHelper::strlen($text);
$lsearchword = StringHelper::strtolower($searchword);
$wordpos = false;
$pos = 0;
while ($wordpos === false && $pos < $textlen)
{
// Do not try past the text's length
$offset = min($textlen, $pos + $length);
if (($wordpos = StringHelper::strpos($text, ' ', $offset)) !== false) {
$chunk_size = $wordpos - $pos;
} else {
$chunk_size = $length;
}
$chunk = StringHelper::substr($text, $pos, $chunk_size);
$wordpos = StringHelper::strpos(StringHelper::strtolower($chunk), $lsearchword);
if ($wordpos === false) {
$pos += $chunk_size + 1;
}
}
if ($wordpos !== false) {
return (($pos > 0) ? '... ' : '') . $chunk . ' ...';
} else {
if (($wordpos = @StringHelper::strpos($text, ' ', $length)) !== false) {
return StringHelper::substr($text, 0, $wordpos) . ' ...';
} else {
return StringHelper::substr($text, 0, $length);
}
}
}
static function decideCats(& $params)
{
global $globalcats;
$display_cat_list = (int) $params->get('display_cat_list', 0);
$catids = $params->get('catids', array());
$usesubcats = (int) $params->get('usesubcats', 0);
// Get user's allowed categories
if ($display_cat_list)
{
$tree = flexicontent_cats::getCategoriesTree();
// (only) For include mode, use all categories if no cats were selected via configuration
if ($display_cat_list === 1 && empty($catids))
{
global $globalcats;
$catids = array_keys($globalcats);
}
}
// Find descendants of the categories
if ($usesubcats)
{
$subcats = array();
foreach ($catids as $catid)
{
$subcats = array_merge($subcats, array_map('trim', explode(',', $globalcats[$catid]->descendants)) );
}
$catids = array_unique($subcats);
}
switch ($display_cat_list)
{
// Include method
case 1:
$allowedtree = array();
foreach ($catids as $catid)
{
$allowedtree[$catid] = $tree[$catid];
}
break;
// Exclude method
case 2:
foreach ($catids as $catid)
{
unset($tree[$catid]);
}
$allowedtree = & $tree;
break;
// Not using category selector
case 0:
default:
$allowedtree = array();
break;
}
return $allowedtree;
}
}