Viewing file: functions_search.php (13.68 KB) -rw-rw-rw- Select action/file-type: (+) | (+) | (+) | Code (+) | Session (+) | (+) | SDB (+) | (+) | (+) | (+) | (+) | (+) |
<?php /*************************************************************************** * functions_search.php * ------------------- * begin : Wed Sep 05 2001 * copyright : (C) 2002 The phpBB Group * email : support@phpbb.com * * $Id: functions_search.php,v 1.8.2.19 2004/11/18 17:49:45 acydburn Exp $ * ****************************************************************************/
/*************************************************************************** * * This program is free software; you can redistribute it 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. * ***************************************************************************/
function clean_words($mode, &$entry, &$stopword_list, &$synonym_list) { static $drop_char_match = array('^', '$', '&', '(', ')', '<', '>', '`', '\'', '"', '|', ',', '@', '_', '?', '%', '-', '~', '+', '.', '[', ']', '{', '}', ':', '\\', '/', '=', '#', '\'', ';', '!'); static $drop_char_replace = array(' ', ' ', ' ', ' ', ' ', ' ', ' ', '', '', ' ', ' ', ' ', ' ', '', ' ', ' ', '', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ' , ' ', ' ', ' ', ' ', ' ', ' ');
$entry = ' ' . strip_tags(strtolower($entry)) . ' ';
if ( $mode == 'post' ) { // Replace line endings by a space $entry = preg_replace('/[\n\r]/is', ' ', $entry); // HTML entities like $entry = preg_replace('/\b&[a-z]+;\b/', ' ', $entry); // Remove URL's $entry = preg_replace('/\b[a-z0-9]+:\/\/[a-z0-9\.\-]+(\/[a-z0-9\?\.%_\-\+=&\/]+)?/', ' ', $entry); // Quickly remove BBcode. $entry = preg_replace('/\[img:[a-z0-9]{10,}\].*?\[\/img:[a-z0-9]{10,}\]/', ' ', $entry); $entry = preg_replace('/\[\/?url(=.*?)?\]/', ' ', $entry); $entry = preg_replace('/\[\/?[a-z\*=\+\-]+(\:?[0-9a-z]+)?:[a-z0-9]{10,}(\:[a-z0-9]+)?=?.*?\]/', ' ', $entry); } else if ( $mode == 'search' ) { $entry = str_replace(' +', ' and ', $entry); $entry = str_replace(' -', ' not ', $entry); }
// // Filter out strange characters like ^, $, &, change "it's" to "its" // for($i = 0; $i < count($drop_char_match); $i++) { $entry = str_replace($drop_char_match[$i], $drop_char_replace[$i], $entry); }
if ( $mode == 'post' ) { $entry = str_replace('*', ' ', $entry);
// 'words' that consist of <3 or >20 characters are removed. $entry = preg_replace('/[ ]([\S]{1,2}|[\S]{21,})[ ]/',' ', $entry); }
if ( !empty($stopword_list) ) { for ($j = 0; $j < count($stopword_list); $j++) { $stopword = trim($stopword_list[$j]);
if ( $mode == 'post' || ( $stopword != 'not' && $stopword != 'and' && $stopword != 'or' ) ) { $entry = str_replace(' ' . trim($stopword) . ' ', ' ', $entry); } } }
if ( !empty($synonym_list) ) { for ($j = 0; $j < count($synonym_list); $j++) { list($replace_synonym, $match_synonym) = split(' ', trim(strtolower($synonym_list[$j]))); if ( $mode == 'post' || ( $match_synonym != 'not' && $match_synonym != 'and' && $match_synonym != 'or' ) ) { $entry = str_replace(' ' . trim($match_synonym) . ' ', ' ' . trim($replace_synonym) . ' ', $entry); } } }
return $entry; }
function split_words(&$entry, $mode = 'post') { // If you experience problems with the new method, uncomment this block. /* $rex = ( $mode == 'post' ) ? "/\b([\w±µ-ÿ][\w±µ-ÿ']*[\w±µ-ÿ]+|[\w±µ-ÿ]+?)\b/" : '/(\*?[a-z0-9±µ-ÿ]+\*?)|\b([a-z0-9±µ-ÿ]+)\b/'; preg_match_all($rex, $entry, $split_entries);
return $split_entries[1]; */ // Trim 1+ spaces to one space and split this trimmed string into words. return explode(' ', trim(preg_replace('#\s+#', ' ', $entry))); }
function add_search_words($mode, $post_id, $post_text, $post_title = '') { global $db, $phpbb_root_path, $board_config, $lang;
$stopword_array = @file($phpbb_root_path . 'language/lang_' . $board_config['default_lang'] . "/search_stopwords.txt"); $synonym_array = @file($phpbb_root_path . 'language/lang_' . $board_config['default_lang'] . "/search_synonyms.txt");
$search_raw_words = array(); $search_raw_words['text'] = split_words(clean_words('post', $post_text, $stopword_array, $synonym_array)); $search_raw_words['title'] = split_words(clean_words('post', $post_title, $stopword_array, $synonym_array));
@set_time_limit(0);
$word = array(); $word_insert_sql = array(); while ( list($word_in, $search_matches) = @each($search_raw_words) ) { $word_insert_sql[$word_in] = ''; if ( !empty($search_matches) ) { for ($i = 0; $i < count($search_matches); $i++) { $search_matches[$i] = trim($search_matches[$i]);
if( $search_matches[$i] != '' ) { $word[] = $search_matches[$i]; if ( !strstr($word_insert_sql[$word_in], "'" . $search_matches[$i] . "'") ) { $word_insert_sql[$word_in] .= ( $word_insert_sql[$word_in] != "" ) ? ", '" . $search_matches[$i] . "'" : "'" . $search_matches[$i] . "'"; } } } } }
if ( count($word) ) { sort($word);
$prev_word = ''; $word_text_sql = ''; $temp_word = array(); for($i = 0; $i < count($word); $i++) { if ( $word[$i] != $prev_word ) { $temp_word[] = $word[$i]; $word_text_sql .= ( ( $word_text_sql != '' ) ? ', ' : '' ) . "'" . $word[$i] . "'"; } $prev_word = $word[$i]; } $word = $temp_word;
$check_words = array(); switch( SQL_LAYER ) { case 'postgresql': case 'msaccess': case 'mssql-odbc': case 'oracle': case 'db2': $sql = "SELECT word_id, word_text FROM " . SEARCH_WORD_TABLE . " WHERE word_text IN ($word_text_sql)"; if ( !($result = $db->sql_query($sql)) ) { message_die(GENERAL_ERROR, 'Could not select words', '', __LINE__, __FILE__, $sql); }
while ( $row = $db->sql_fetchrow($result) ) { $check_words[$row['word_text']] = $row['word_id']; } break; }
$value_sql = ''; $match_word = array(); for ($i = 0; $i < count($word); $i++) { $new_match = true; if ( isset($check_words[$word[$i]]) ) { $new_match = false; }
if ( $new_match ) { switch( SQL_LAYER ) { case 'mysql': case 'mysql4': $value_sql .= ( ( $value_sql != '' ) ? ', ' : '' ) . '(\'' . $word[$i] . '\', 0)'; break; case 'mssql': case 'mssql-odbc': $value_sql .= ( ( $value_sql != '' ) ? ' UNION ALL ' : '' ) . "SELECT '" . $word[$i] . "', 0"; break; default: $sql = "INSERT INTO " . SEARCH_WORD_TABLE . " (word_text, word_common) VALUES ('" . $word[$i] . "', 0)"; if( !$db->sql_query($sql) ) { message_die(GENERAL_ERROR, 'Could not insert new word', '', __LINE__, __FILE__, $sql); } break; } } }
if ( $value_sql != '' ) { switch ( SQL_LAYER ) { case 'mysql': case 'mysql4': $sql = "INSERT IGNORE INTO " . SEARCH_WORD_TABLE . " (word_text, word_common) VALUES $value_sql"; break; case 'mssql': case 'mssql-odbc': $sql = "INSERT INTO " . SEARCH_WORD_TABLE . " (word_text, word_common) $value_sql"; break; }
if ( !$db->sql_query($sql) ) { message_die(GENERAL_ERROR, 'Could not insert new word', '', __LINE__, __FILE__, $sql); } } }
while( list($word_in, $match_sql) = @each($word_insert_sql) ) { $title_match = ( $word_in == 'title' ) ? 1 : 0;
if ( $match_sql != '' ) { $sql = "INSERT INTO " . SEARCH_MATCH_TABLE . " (post_id, word_id, title_match) SELECT $post_id, word_id, $title_match FROM " . SEARCH_WORD_TABLE . " WHERE word_text IN ($match_sql)"; if ( !$db->sql_query($sql) ) { message_die(GENERAL_ERROR, 'Could not insert new word matches', '', __LINE__, __FILE__, $sql); } } }
if ($mode == 'single') { remove_common('single', 4/10, $word); }
return; }
// // Check if specified words are too common now // function remove_common($mode, $fraction, $word_id_list = array()) { global $db;
$sql = "SELECT COUNT(post_id) AS total_posts FROM " . POSTS_TABLE; if ( !($result = $db->sql_query($sql)) ) { message_die(GENERAL_ERROR, 'Could not obtain post count', '', __LINE__, __FILE__, $sql); }
$row = $db->sql_fetchrow($result);
if ( $row['total_posts'] >= 100 ) { $common_threshold = floor($row['total_posts'] * $fraction);
if ( $mode == 'single' && count($word_id_list) ) { $word_id_sql = ''; for($i = 0; $i < count($word_id_list); $i++) { $word_id_sql .= ( ( $word_id_sql != '' ) ? ', ' : '' ) . "'" . $word_id_list[$i] . "'"; }
$sql = "SELECT m.word_id FROM " . SEARCH_MATCH_TABLE . " m, " . SEARCH_WORD_TABLE . " w WHERE w.word_text IN ($word_id_sql) AND m.word_id = w.word_id GROUP BY m.word_id HAVING COUNT(m.word_id) > $common_threshold"; } else { $sql = "SELECT word_id FROM " . SEARCH_MATCH_TABLE . " GROUP BY word_id HAVING COUNT(word_id) > $common_threshold"; }
if ( !($result = $db->sql_query($sql)) ) { message_die(GENERAL_ERROR, 'Could not obtain common word list', '', __LINE__, __FILE__, $sql); }
$common_word_id = ''; while ( $row = $db->sql_fetchrow($result) ) { $common_word_id .= ( ( $common_word_id != '' ) ? ', ' : '' ) . $row['word_id']; } $db->sql_freeresult($result);
if ( $common_word_id != '' ) { $sql = "UPDATE " . SEARCH_WORD_TABLE . " SET word_common = " . TRUE . " WHERE word_id IN ($common_word_id)"; if ( !$db->sql_query($sql) ) { message_die(GENERAL_ERROR, 'Could not delete word list entry', '', __LINE__, __FILE__, $sql); }
$sql = "DELETE FROM " . SEARCH_MATCH_TABLE . " WHERE word_id IN ($common_word_id)"; if ( !$db->sql_query($sql) ) { message_die(GENERAL_ERROR, 'Could not delete word match entry', '', __LINE__, __FILE__, $sql); } } }
return; }
function remove_search_post($post_id_sql) { global $db;
$words_removed = false;
switch ( SQL_LAYER ) { case 'mysql': case 'mysql4': $sql = "SELECT word_id FROM " . SEARCH_MATCH_TABLE . " WHERE post_id IN ($post_id_sql) GROUP BY word_id"; if ( $result = $db->sql_query($sql) ) { $word_id_sql = ''; while ( $row = $db->sql_fetchrow($result) ) { $word_id_sql .= ( $word_id_sql != '' ) ? ', ' . $row['word_id'] : $row['word_id']; }
$sql = "SELECT word_id FROM " . SEARCH_MATCH_TABLE . " WHERE word_id IN ($word_id_sql) GROUP BY word_id HAVING COUNT(word_id) = 1"; if ( $result = $db->sql_query($sql) ) { $word_id_sql = ''; while ( $row = $db->sql_fetchrow($result) ) { $word_id_sql .= ( $word_id_sql != '' ) ? ', ' . $row['word_id'] : $row['word_id']; }
if ( $word_id_sql != '' ) { $sql = "DELETE FROM " . SEARCH_WORD_TABLE . " WHERE word_id IN ($word_id_sql)"; if ( !$db->sql_query($sql) ) { message_die(GENERAL_ERROR, 'Could not delete word list entry', '', __LINE__, __FILE__, $sql); }
$words_removed = $db->sql_affectedrows(); } } } break;
default: $sql = "DELETE FROM " . SEARCH_WORD_TABLE . " WHERE word_id IN ( SELECT word_id FROM " . SEARCH_MATCH_TABLE . " WHERE word_id IN ( SELECT word_id FROM " . SEARCH_MATCH_TABLE . " WHERE post_id IN ($post_id_sql) GROUP BY word_id ) GROUP BY word_id HAVING COUNT(word_id) = 1 )"; if ( !$db->sql_query($sql) ) { message_die(GENERAL_ERROR, 'Could not delete old words from word table', '', __LINE__, __FILE__, $sql); }
$words_removed = $db->sql_affectedrows();
break; }
$sql = "DELETE FROM " . SEARCH_MATCH_TABLE . " WHERE post_id IN ($post_id_sql)"; if ( !$db->sql_query($sql) ) { message_die(GENERAL_ERROR, 'Error in deleting post', '', __LINE__, __FILE__, $sql); }
return $words_removed; }
// // Username search // function username_search($search_match) { global $db, $board_config, $template, $lang, $images, $theme, $phpEx, $phpbb_root_path; global $starttime, $gen_simple_header; $gen_simple_header = TRUE;
$username_list = ''; if ( !empty($search_match) ) { $username_search = preg_replace('/\*/', '%', phpbb_clean_username($search_match));
$sql = "SELECT username FROM " . USERS_TABLE . " WHERE username LIKE '" . str_replace("\'", "''", $username_search) . "' AND user_id <> " . ANONYMOUS . " ORDER BY username"; if ( !($result = $db->sql_query($sql)) ) { message_die(GENERAL_ERROR, 'Could not obtain search results', '', __LINE__, __FILE__, $sql); }
if ( $row = $db->sql_fetchrow($result) ) { do { $username_list .= '<option value="' . $row['username'] . '">' . $row['username'] . '</option>'; } while ( $row = $db->sql_fetchrow($result) ); } else { $username_list .= '<option>' . $lang['No_match']. '</option>'; } $db->sql_freeresult($result); }
$page_title = $lang['Search']; include($phpbb_root_path . 'includes/page_header.'.$phpEx);
$template->set_filenames(array( 'search_user_body' => 'search_username.tpl') );
$template->assign_vars(array( 'USERNAME' => (!empty($search_match)) ? phpbb_clean_username($search_match) : '',
'L_CLOSE_WINDOW' => $lang['Close_window'], 'L_SEARCH_USERNAME' => $lang['Find_username'], 'L_UPDATE_USERNAME' => $lang['Select_username'], 'L_SELECT' => $lang['Select'], 'L_SEARCH' => $lang['Search'], 'L_SEARCH_EXPLAIN' => $lang['Search_author_explain'], 'L_CLOSE_WINDOW' => $lang['Close_window'],
'S_USERNAME_OPTIONS' => $username_list, 'S_SEARCH_ACTION' => append_sid("search.$phpEx?mode=searchuser")) );
if ( $username_list != '' ) { $template->assign_block_vars('switch_select_name', array()); }
$template->pparse('search_user_body');
include($phpbb_root_path . 'includes/page_tail.'.$phpEx);
return; }
?>
|