328 lines
9.0 KiB
PHP
328 lines
9.0 KiB
PHP
<?php
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/**
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* <pre>
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* Invision Power Services
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* IP.Board v3.4.6
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* Global Search
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* Last Updated: $Date: 2012-12-03 14:03:02 -0500 (Mon, 03 Dec 2012) $
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* </pre>
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*
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* @author $Author: AndyMillne $
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* @copyright (c) 2001 - 2009 Invision Power Services, Inc.
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* @license http://www.invisionpower.com/company/standards.php#license
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* @package IP.Board
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* @subpackage Core
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* @link http://www.invisionpower.com
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* @version $Rev: 11673 $
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*/
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if ( ! defined( 'IN_IPB' ) )
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{
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print "<h1>Incorrect access</h1>You cannot access this file directly. If you have recently upgraded, make sure you upgraded all the relevant files.";
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exit();
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}
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class search_engine
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{
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/**
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* Date range restriction start
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*
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* @access protected
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* @var integer
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*/
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protected $search_begin_timestamp = 0;
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/**
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* Date range restriction end
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*
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* @access protected
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* @var integer
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*/
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protected $search_end_timestamp = 0;
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/**
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* Array of conditions for this search
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*
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* @access protected
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* @var array
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*/
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protected $whereConditions = array();
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/**
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* Setup registry objects
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*
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* @access public
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* @param object ipsRegistry $registry
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* @return @e void
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*/
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public function __construct( ipsRegistry $registry )
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{
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/* Make object */
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$this->registry = $registry;
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$this->DB = $this->registry->DB();
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$this->settings =& $this->registry->fetchSettings();
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$this->request =& $this->registry->fetchRequest();
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$this->lang = $this->registry->getClass('class_localization');
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$this->member = $this->registry->member();
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$this->memberData =& $this->registry->member()->fetchMemberData();
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$this->cache = $this->registry->cache();
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$this->caches =& $this->registry->cache()->fetchCaches();
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}
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/**
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* Perform a search.
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* Returns an array of a total count (total number of matches)
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* and an array of IDs matching the required number based on pagination. The ids returned would be based on the filters and type of search
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*
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* So if we had 1000 replies, and we are on page 2 of 25 per page, we'd return 25 items offset by 25
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*
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* @access public
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* @return array
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*/
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public function search()
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{
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/* Per app class handles this */
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throw new Exception("NO_SEARCH_AVAILABLE");
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}
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/**
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* Perform the viewNewContent search
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* Generic version
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* Populates $this->_count and $this->_results
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*
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* @access public
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* @return nothin'
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*/
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public function viewNewContent()
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{
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$app = IPSSearchRegistry::get('in.search_app');
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$seconds = IPSSearchRegistry::get('in.period_in_seconds');
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IPSSearchRegistry::set('in.search_sort_by' , 'date' );
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IPSSearchRegistry::set('in.search_sort_order', 'desc' );
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/* Set time stamp */
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$this->setDateRange( intval( time() - $seconds ), time() );
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/* Force title search only */
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IPSSearchRegistry::set('opt.searchTitleOnly', true);
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return $this->search();
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}
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/**
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* Perform the search
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* Populates $this->_count and $this->_results
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*
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* @access public
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* @return nothin'
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*/
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public function viewUserContent( $member )
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{
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$app = IPSSearchRegistry::get('in.search_app');
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//IPSSearchRegistry::set('in.search_sort_by' , 'date' );
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//IPSSearchRegistry::set('in.search_sort_order', 'desc' );
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IPSSearchRegistry::set('opt.searchTitleOnly', IPSSearchRegistry::get('in.view_by_title') );
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IPSSearchRegistry::set('opt.noPostPreview' , IPSSearchRegistry::get('in.view_by_title') );
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/* Set the member_id */
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$this->setCondition( 'member_id', '=', $member['member_id'] );
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/* Cut by date for efficiency? */
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if ( $this->settings['search_ucontent_days'] )
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{
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$begin = time() - ( 86400 * intval( $this->settings['search_ucontent_days'] ) );
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$this->setDateRange( $begin, time() );
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}
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return $this->search();
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}
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/**
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* Can handle boolean searching
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*
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* @access public
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* @return boolean
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*/
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public function isBoolean()
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{
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return ( $this->settings['use_fulltext'] AND $this->DB->checkBooleanFulltextSupport() ) ? TRUE : FALSE;
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}
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/**
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* Formats search term for SQL
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*
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* @access private
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* @param string Raw IPB santized form input
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* @return array array( 'search_term' => Safe string to use in SQL, 'removed' => array of removed search terms )
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*/
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public function formatSearchTerm( $search_term )
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{
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$isBoolean = $this->isBoolean();
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$andor = !empty( $this->request['andor_type'] ) ? $this->request['andor_type'] : $this->settings['s_andor_type'];
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$removedTerms = array();
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/* Fix up some sanitized HTML */
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$search_term = str_replace( "&" , '&' , IPSText::parseCleanValue( rawurldecode( $search_term ) ) );
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if( $isBoolean )
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{
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$search_term = str_replace( """ , '"' , $search_term );
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}
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else
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{
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$search_term = str_replace( """ , '' , $search_term );
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}
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$search_term = IPSText::mbstrtolower( $search_term );
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/* Check for disallowed search terms */
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while( preg_match_all( '/(?:^|\s+)(img|quote|code|html|javascript|a href|color|span|div|border|style)(?:\s+|$)/', $search_term, $removed_search_terms ) )
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{
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$removedTerms[] = $removed_search_terms[0][0];
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$search_term = preg_replace( '/(^|\s+)(?:img|quote|code|html|javascript|a href|color|span|div|border|style)(\s+|$)/', str_replace( " ", " ", "$1$2" ), $search_term );
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}
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/* remove < min char words */
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if ( substr_count( $search_term, '"' ) != 2 )
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{
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$_words = explode( ' ', $search_term );
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$search_term = '';
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foreach( $_words as $_w )
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{
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if ( IPSText::mbstrlen( $_w ) >= $this->settings['min_search_word'] )
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{
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$search_term .= $_w . ' ';
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}
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else
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{
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if( $_w )
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{
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$removedTerms[] = $_w;
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}
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}
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}
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}
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/* Remove some formatting */
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//$search_term = str_replace( array( '|', '\\', '/' ), '', $search_term );
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// | is an OR operator for sphinx - don't want to block globally
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$search_term = str_replace( array( '\\', '/' ), '', trim( $search_term ) );
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/* got some bullean to do? */
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if ( $isBoolean AND strstr( $search_term, ' ' ) AND ! strstr( $search_term, '"' ) )
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{
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if ( $andor == 'and' )
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{
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$search_term = '+' . preg_replace( '/\s+(?!-|~)/', " +", $search_term );
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}
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}
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return array( 'search_term' => $search_term, 'removed' => $removedTerms );
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}
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/**
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* Restrict the date range that the search is performed on
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*
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* @access public
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* @param int $begin Start timestamp
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* @param int [$end] End timestamp
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* @return @e void
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*/
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public function setDateRange( $begin, $end=0 )
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{
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$this->search_begin_timestamp = $begin;
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$this->search_end_timestamp = $end;
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}
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/**
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* mySQL function for adding special search conditions
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*
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* @access public
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* @param string $column sql table column for this condition
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* @param string $operator Operation to perform for this condition, ex: =, <>, IN, NOT IN
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* @param mixed $value Value to check with
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* @param string $comp Comparison type
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* @return @e void
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*/
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public function setCondition( $column, $operator, $value, $comp='AND' )
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{
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$column = $this->remapColumn( $column );
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if ( $column == 'app' OR ! $column )
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{
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return;
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}
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/* Build the condition based on operator */
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switch( strtoupper( $operator ) )
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{
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case 'IN':
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case 'NOT IN':
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$this->whereConditions[$comp][] = "{$column} {$operator} ( {$value} )";
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break;
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default:
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$this->whereConditions[$comp][] = "{$column} {$operator} {$value}";
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break;
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}
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}
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/**
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* Remap standard columns (Apps can override )
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*
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* @access public
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* @param string $column sql table column for this condition
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* @return string column
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* @return @e void
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*/
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public function remapColumn( $column )
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{
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return $column;
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}
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/**
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* Allows you to specify multiple conditions that are chained together
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*
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* @access public
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* @param array $conditions Array of conditions, each element has 3 keys: column, operator, value, see the setCondition function for information on each
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* @param string $inner_comp Comparison operator to use inside the chain
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* @param string $outer_comp Comparison operator to use outside the chain
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* @return @e void
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*/
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public function setMultiConditions( $conditions, $inner_comp='OR', $outer_comp='AND' )
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{
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/* Loop through the conditions to build the statement */
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$_temp = array();
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foreach( $conditions as $r )
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{
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/* REMAP */
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$r['column'] = $r['column'] == 'type_id' ? 't.forum_id' : $r['column'];
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if( $r['column'] == 'app' )
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{
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continue;
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}
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switch( strtoupper( $r['operator'] ) )
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{
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case 'IN':
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case 'NOT IN':
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$_temp[] = "{$r['column']} {$r['operator']} ( {$r['value']} )";
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break;
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default:
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$_temp[] = "{$r['column']} {$r['operator']} {$r['value']}";
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break;
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}
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}
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$this->whereConditions[$outer_comp][] = '( ' . implode( $_temp, ' ' . $inner_comp . ' ' ) . ' ) ';
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}
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}
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