-<?php

-/***************************************************************************

-* search.php

-* -------------------

-* begin : Wed Sep 05 2001

-* copyright : (C) 2001 The phpBB Group

-* email : support@phpbb.com

-*

-* $Id$

-*

-****************************************************************************/

-

-/***************************************************************************

- *

- * 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)

-{

- // Weird, $init_match doesn't work with static when double quotes (") are used...

- static $drop_char_match = array('^', '$', '&', '(', ')', '<', '>', '`', "'", '|', ',', '@', '_', '?', '%', '-', '~', '+', '.', '[', ']', '{', '}', ':', '\\', '/', '=', '#', '\'', ';', '!');

- static $drop_char_replace = array(" ", " ", " ", " ", " ", " ", " ", " ", "", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " " , " ", " ", " ", " ", " ", " ");

-

-// static $accent_match = array("ß", "à", "á", "â", "ã", "ä", "å", "æ", "ç", "è", "é", "ê", "ë", "ì", "í", "î", "ï", "ð", "ñ", "ò", "ó", "ô", "õ", "ö", "ø", "ù", "ú", "û", "ü", "ý", "þ", "ÿ");

-// static $accent_replace = array("s", "a", "a", "a", "a", "a", "a", "a", "c", "e", "e", "e", "e", "i", "i", "i", "i", "o", "n", "o", "o", "o", "o", "o", "o", "u", "u", "u", "u", "y", "t", "y");

-

- $entry = " " . strip_tags(strtolower($entry)) . " ";

-

- for($i = 0; $i < count($accent_match); $i++)

- {

- $entry = str_replace($accent_match[$i], $accent_replace[$i], $entry);

- }

-

- if( $mode == "post" )

- {

- // Replace line endings by a space

- $entry = preg_replace("/[\n\r]/is", " ", $entry);

- // HTML entities like &nbsp;

- $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);

- }

-

- // Replace numbers on their own

- $entry = preg_replace("/\b[0-9]+\b/", " ", $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 >=25 characters are removed.

- $entry = preg_replace("/\b([a-z0-9]{1,3}|[a-z0-9]{25,})\b/", " ", $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 = preg_replace("/\b" . $stopword . "\b/", " ", $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" ) )

- {

- $entry = preg_replace("/\b" . trim($match_synonym) . "\b/", " " . trim($replace_synonym) . " ", $entry);

- }

- }

- }

-

- return $entry;

-}

-

-function split_words(&$entry, $mode = "post")

-{

- if( $mode == "post" )

- {

- preg_match_all("/\b(\w[\w']*\w+|\w+?)\b/", $entry, $split_entries);

- }

- else

- {

- preg_match_all("/(\*?[a-z0-9]+\*?)|\b([a-z0-9]+)\b/", $entry, $split_entries);

- }

-

- return $split_entries[1];

-}

-

-function add_search_words($post_id, $post_text, $post_title = "")

-{

- global $db, $phpbb_root_path, $board_config, $lang;

-

- $stopwords_array = @file($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));

-

- $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, "Couldn't 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] . "')";

- break;

- case 'mssql':

- $value_sql .= ( ( $value_sql != "" ) ? " UNION ALL " : "" ) . "SELECT '" . $word[$i] . "'";

- break;

- default:

- $sql = "INSERT INTO " . SEARCH_WORD_TABLE . " (word_text)

- VALUES ('" . $word[$i] . "')";

- if( !($result = $db->sql_query($sql)) )

- {

- message_die(GENERAL_ERROR, "Couldn't 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)

- VALUES $value_sql";

- break;

- case 'mssql':

- $sql = "INSERT INTO " . SEARCH_WORD_TABLE . " (word_text)

- $value_sql";

- break;

- }

-

- if( !($result = $db->sql_query($sql)) )

- {

- message_die(GENERAL_ERROR, "Couldn't 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( !($result = $db->sql_query($sql)) )

- {

- message_die(GENERAL_ERROR, "Couldn't insert new word matches", "", __LINE__, __FILE__, $sql);

- }

- }

- }

-

- if ( $mode == 'single' )

- {

- remove_common('single', 0.4, $word);

- }

-

- return;

-}

-

-//

-// Check if specified words are too common now

-//

-function remove_common($mode, $fraction, $word_id_list = array())

-{

- global $db;

-

- $sql = ( $mode == "global" ) ? "SELECT COUNT(post_id) AS total_posts FROM " . SEARCH_MATCH_TABLE . " GROUP BY post_id" : "SELECT SUM(forum_posts) AS total_posts FROM " . FORUMS_TABLE;

- if( !($result = $db->sql_query($sql)) )

- {

- message_die(GENERAL_ERROR, "Couldn't 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, "Couldn't 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'] : $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( !($result = $db->sql_query($sql)) )

- {

- message_die(GENERAL_ERROR, "Couldn't delete word list entry", "", __LINE__, __FILE__, $sql);

- }

-

- $sql = "DELETE FROM " . SEARCH_MATCH_TABLE . "

- WHERE word_id IN ($common_word_id)";

- if( !($result = $db->sql_query($sql)) )

- {

- message_die(GENERAL_ERROR, "Couldn't delete word match entry", "", __LINE__, __FILE__, $sql);

- }

- }

- }

-

- return $word_count;

-}

-

-function remove_unmatched_words()

-{

- global $db;

-

- switch(SQL_LAYER)

- {

- case 'mysql':

- case 'mysql4':

- $sql = "SELECT w.word_id

- FROM " . SEARCH_WORD_TABLE . " w

- LEFT JOIN " . SEARCH_MATCH_TABLE . " m ON m.word_id = w.word_id

- WHERE m.word_id IS NULL";

- 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( !($result = $db->sql_query($sql, END_TRANSACTION)) )

- {

- message_die(GENERAL_ERROR, "Couldn't delete word list entry", "", __LINE__, __FILE__, $sql);

- }

-

- return $db->sql_affectedrows();

- }

- }

- break;

-

- default:

- $sql = "DELETE FROM " . SEARCH_WORD_TABLE . "

- WHERE word_id NOT IN (

- SELECT word_id

- FROM " . SEARCH_MATCH_TABLE . "

- GROUP BY word_id)";

- if( !($result = $db->sql_query($sql, END_TRANSACTION)) )

- {

- message_die(GENERAL_ERROR, "Couldn't delete old words from word table", __LINE__, __FILE__, $sql);

- }

-

- return $db->sql_affectedrows();

-

- break;

- }

-

- return 0;

-}

-

-//

-// Username search

-//

-function username_search($search_match, $is_inline_review = 0, $default_list = "")

-{

- global $db, $board_config, $template, $lang, $images, $theme, $phpEx, $phpbb_root_path;

- global $starttime;

-

- $author_list = '';

- if ( !empty($search_match) )

- {

- $username_search = preg_replace("/\*/", "%", trim(strip_tags($search_match)));

-

- $sql = "SELECT username

- FROM " . USERS_TABLE . "

- WHERE username LIKE '" . str_replace("\'", "''", $username_search) . "'

- ORDER BY username";

- if ( !($result = $db->sql_query($sql)) )

- {

- message_die(GENERAL_ERROR, "Couldn't obtain search results", "", __LINE__, __FILE__, $sql);

- }

-

- if ( $row = $db->sql_fetchrow($result) )

- {

- do

- {

- $author_list .= '<option value="' . $row['username'] . '">' .$row['username'] . '</option>';

- }

- while ( $row = $db->sql_fetchrow($result) );

- }

- else

- {

- $author_list = '<option>' . $lang['No_match']. '</option>';

- }

-

- }

-

- if ( !$is_inline_review )

- {

- $gen_simple_header = TRUE;

- $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(

- "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_AUTHOR_OPTIONS" => $author_list,

- "S_SEARCH_ACTION" => append_sid("search.$phpEx?mode=searchuser"))

- );

-

- //

- // If we have results then dump them out and enable

- // the appropriate switch block

- //

- if ( !empty($author_list) )

- {

- $template->assign_block_vars("switch_select_name", array());

- }

-

- $template->pparse("search_user_body");

-

- include($phpbb_root_path . 'includes/page_tail.'.$phpEx);

- }

-

- return($author_list);

-}

-

-?> \ No newline at end of file