Current File : /home/admin/public_html/old/happyezystyle/board/Sources/SearchAPI-Custom.php
<?php
/**********************************************************************************
* SearchAPI-Custom.php *
***********************************************************************************
* SMF: Simple Machines Forum *
* Open-Source Project Inspired by Zef Hemel (zef@zefhemel.com) *
* =============================================================================== *
* Software Version: SMF 2.0 RC1 *
* Software by: Simple Machines (http://www.simplemachines.org) *
* Copyright 2006-2009 by: Simple Machines LLC (http://www.simplemachines.org) *
* 2001-2006 by: Lewis Media (http://www.lewismedia.com) *
* Support, News, Updates at: http://www.simplemachines.org *
***********************************************************************************
* This program is free software; you may redistribute it and/or modify it under *
* the terms of the provided license as published by Simple Machines LLC. *
* *
* This program is distributed in the hope that it is and will be useful, but *
* WITHOUT ANY WARRANTIES; without even any implied warranty of MERCHANTABILITY *
* or FITNESS FOR A PARTICULAR PURPOSE. *
* *
* See the "license.txt" file for details of the Simple Machines license. *
* The latest version can always be found at http://www.simplemachines.org. *
**********************************************************************************/
if (!defined('SMF'))
die('Hacking attempt...');
/*
int searchSort(string $wordA, string $wordB)
- callback function for usort used to sort the fulltext results.
- the order of sorting is: large words, small words, large words that
are excluded from the search, small words that are excluded.
*/
class custom_search
{
// This is the last version of SMF that this was tested on, to protect against API changes.
public $version_compatible = 'SMF 2.0 RC1';
// This won't work with versions of SMF less than this.
public $min_smf_version = 'SMF 2.0 Beta 2';
// Is it supported?
public $is_supported = true;
protected $indexSettings = array();
// What words are banned?
protected $bannedWords = array();
// What is the minimum word length?
protected $min_word_length = null;
// What databases support the custom index?
protected $supported_databases = array('mysql', 'postgresql', 'sqlite');
public function __construct()
{
global $modSettings, $db_type;
// Is this database supported?
if (!in_array($db_type, $this->supported_databases))
{
$this->is_supported = false;
return;
}
if (empty($modSettings['search_custom_index_config']))
return;
$this->indexSettings = unserialize($modSettings['search_custom_index_config']);
$this->bannedWords = empty($modSettings['search_stopwords']) ? array() : explode(',', $modSettings['search_stopwords']);
$this->min_word_length = $this->indexSettings['bytes_per_word'];
}
// Check whether the search can be performed by this API.
public function supportsMethod($methodName, $query_params = null)
{
switch ($methodName)
{
case 'isValid':
case 'searchSort':
case 'prepareIndexes':
case 'indexedWordQuery':
return true;
break;
default:
// All other methods, too bad dunno you.
return false;
return;
}
}
// If the settings don't exist we can't continue.
public function isValid()
{
global $modSettings;
return !empty($modSettings['search_custom_index_config']);
}
// This function compares the length of two strings plus a little.
public function searchSort($a, $b)
{
global $modSettings, $excludedWords;
$x = strlen($a) - (in_array($a, $excludedWords) ? 1000 : 0);
$y = strlen($b) - (in_array($b, $excludedWords) ? 1000 : 0);
return $y < $x ? 1 : ($y > $x ? -1 : 0);
}
// Do we have to do some work with the words we are searching for to prepare them?
public function prepareIndexes($word, &$wordsSearch, &$wordsExclude, $isExcluded)
{
global $modSettings;
$subwords = text2words($word, $this->min_word_length, true);
if (empty($modSettings['search_force_index']))
$wordsSearch['words'][] = $word;
// Excluded phrases don't benefit from being split into subwords.
if (count($subwords) > 1 && $isExcluded)
continue;
else
{
foreach ($subwords as $subword)
{
if (strlen($subword) >= $this->min_word_length && !in_array($subword, $this->bannedWords))
{
$wordsSearch['indexed_words'][] = $subword;
if ($isExcluded)
$wordsExclude[] = $subword;
}
}
}
}
// Search for indexed words.
public function indexedWordQuery($words, $search_data)
{
global $modSettings, $smcFunc;
$query_select = array(
'id_msg' => 'm.id_msg',
);
$query_inner_join = array();
$query_left_join = array();
$query_where = array();
$query_params = $search_data['params'];
if ($query_params['id_search'])
$query_select['id_search'] = '{int:id_search}';
$count = 0;
foreach ($words['words'] as $regularWord)
{
$query_where[] = 'm.body' . (in_array($regularWord, $query_params['excluded_words']) ? ' NOT' : '') . (empty($modSettings['search_match_words']) || $search_data['no_regexp'] ? ' LIKE ' : ' RLIKE ') . '{string:complex_body_' . $count . '}';
$query_params['complex_body_' . $count++] = empty($modSettings['search_match_words']) || $search_data['no_regexp'] ? '%' . strtr($regularWord, array('_' => '\\_', '%' => '\\%')) . '%' : '[[:<:]]' . addcslashes(preg_replace(array('/([\[\]$.+*?|{}()])/'), array('[$1]'), $regularWord), '\\\'') . '[[:>:]]';
}
if ($query_params['user_query'])
$query_where[] = '{raw:user_query}';
if ($query_params['board_query'])
$query_where[] = 'm.id_board {raw:board_query}';
if ($query_params['topic'])
$query_where[] = 'm.id_topic = {int:topic}';
if ($query_params['min_msg_id'])
$query_where[] = 'm.id_msg >= {int:min_msg_id}';
if ($query_params['max_msg_id'])
$query_where[] = 'm.id_msg <= {int:max_msg_id}';
$count = 0;
if (!empty($query_params['excluded_phrases']) && empty($modSettings['search_force_index']))
foreach ($query_params['excluded_phrases'] as $phrase)
{
$query_where[] = 'subject NOT ' . (empty($modSettings['search_match_words']) || $search_data['no_regexp'] ? ' LIKE ' : ' RLIKE ') . '{string:exclude_subject_phrase_' . $count . '}';
$query_params['exclude_subject_phrase_' . $count++] = empty($modSettings['search_match_words']) || $search_data['no_regexp'] ? '%' . strtr($phrase, array('_' => '\\_', '%' => '\\%')) . '%' : '[[:<:]]' . addcslashes(preg_replace(array('/([\[\]$.+*?|{}()])/'), array('[$1]'), $phrase), '\\\'') . '[[:>:]]';
}
$count = 0;
if (!empty($query_params['excluded_subject_words']) && empty($modSettings['search_force_index']))
foreach ($query_params['excluded_subject_words'] as $excludedWord)
{
$query_where[] = 'subject NOT ' . (empty($modSettings['search_match_words']) || $search_data['no_regexp'] ? ' LIKE ' : ' RLIKE ') . '{string:exclude_subject_words_' . $count . '}';
$query_params['exclude_subject_words_' . $count++] = empty($modSettings['search_match_words']) || $search_data['no_regexp'] ? '%' . strtr($excludedWord, array('_' => '\\_', '%' => '\\%')) . '%' : '[[:<:]]' . addcslashes(preg_replace(array('/([\[\]$.+*?|{}()])/'), array('[$1]'), $excludedWord), '\\\'') . '[[:>:]]';
}
$numTables = 0;
$prev_join = 0;
foreach ($words['indexed_words'] as $indexedWord)
{
$numTables++;
if (in_array($indexedWord, $query_params['excluded_index_words']))
{
$query_left_join[] = '{db_prefix}log_search_words AS lsw' . $numTables . ' ON (lsw' . $numTables . '.id_word = ' . $indexedWord . ' AND lsw' . $numTables . '.id_msg = m.id_msg)';
$query_where[] = '(lsw' . $numTables . '.id_word IS NULL)';
}
else
{
$query_inner_join[] = '{db_prefix}log_search_words AS lsw' . $numTables . ' ON (lsw' . $numTables . '.id_msg = ' . ($prev_join === 0 ? 'm' : 'lsw' . $prev_join) . '.id_msg)';
$query_where[] = 'lsw' . $numTables . '.id_word = ' . $indexedWord;
$prev_join = $numTables;
}
}
$ignoreRequest = $smcFunc['db_search_query']('insert_into_log_messages_fulltext', ($smcFunc['db_support_ignore'] ? ( '
INSERT IGNORE INTO {db_prefix}' . $search_data['insert_into'] . '
(' . implode(', ', array_keys($query_select)) . ')') : '') . '
SELECT ' . implode(', ', $query_select) . '
FROM {db_prefix}messages AS m' . (empty($query_inner_join) ? '' : '
INNER JOIN ' . implode('
INNER JOIN ', $query_inner_join)) . (empty($query_left_join) ? '' : '
LEFT JOIN ' . implode('
LEFT JOIN ', $query_left_join)) . '
WHERE ' . implode('
AND ', $query_where) . (empty($search_data['max_results']) ? '' : '
LIMIT ' . ($search_data['max_results'] - $search_data['indexed_results'])),
$query_params
);
return $ignoreRequest;
}
}
?>