mirror of
https://github.com/YunoHost-Apps/piwigo_ynh.git
synced 2024-09-03 20:06:03 +02:00
833 lines
No EOL
18 KiB
PHP
833 lines
No EOL
18 KiB
PHP
<?php
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// +-----------------------------------------------------------------------+
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// | Piwigo - a PHP based photo gallery |
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// +-----------------------------------------------------------------------+
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// | Copyright(C) 2008-2016 Piwigo Team http://piwigo.org |
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// | Copyright(C) 2003-2008 PhpWebGallery Team http://phpwebgallery.net |
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// | Copyright(C) 2002-2003 Pierrick LE GALL http://le-gall.net/pierrick |
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// +-----------------------------------------------------------------------+
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// | This program is free software; you can redistribute it and/or modify |
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// | it under the terms of the GNU General Public License as published by |
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// | the Free Software Foundation |
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// | |
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// | This program is distributed in the hope that it will be useful, but |
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// | WITHOUT ANY WARRANTY; without even the implied warranty of |
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// | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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// | General Public License for more details. |
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// | |
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// | You should have received a copy of the GNU General Public License |
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// | along with this program; if not, write to the Free Software |
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// | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, |
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// | USA. |
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// +-----------------------------------------------------------------------+
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define('DB_ENGINE', 'MySQL');
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define('REQUIRED_MYSQL_VERSION', '5.0.0');
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define('DB_REGEX_OPERATOR', 'REGEXP');
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define('DB_RANDOM_FUNCTION', 'RAND');
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/**
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*
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* simple functions
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*
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*/
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function pwg_db_connect($host, $user, $password, $database)
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{
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$link = @mysql_connect($host, $user, $password);
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if (!$link)
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{
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throw new Exception("Can't connect to server");
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}
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if (!mysql_select_db($database, $link))
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{
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throw new Exception('Connection to server succeed, but it was impossible to connect to database');
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}
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}
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function pwg_db_check_charset()
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{
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$db_charset = 'utf8';
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if (defined('DB_CHARSET') and DB_CHARSET != '')
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{
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$db_charset = DB_CHARSET;
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}
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mysql_set_charset($db_charset);
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}
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function pwg_db_check_version()
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{
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$current_mysql = pwg_get_db_version();
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if (version_compare($current_mysql, REQUIRED_MYSQL_VERSION, '<'))
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{
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fatal_error(
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sprintf(
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'your MySQL version is too old, you have "%s" and you need at least "%s"',
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$current_mysql,
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REQUIRED_MYSQL_VERSION
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)
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);
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}
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}
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function pwg_get_db_version()
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{
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return mysql_get_server_info();
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}
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function pwg_query($query)
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{
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global $conf,$page,$debug,$t2;
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$start = microtime(true);
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($result = mysql_query($query)) or my_error($query, $conf['die_on_sql_error']);
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$time = microtime(true) - $start;
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if (!isset($page['count_queries']))
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{
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$page['count_queries'] = 0;
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$page['queries_time'] = 0;
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}
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$page['count_queries']++;
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$page['queries_time']+= $time;
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if ($conf['show_queries'])
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{
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$output = '';
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$output.= '<pre>['.$page['count_queries'].'] ';
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$output.= "\n".$query;
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$output.= "\n".'(this query time : ';
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$output.= '<b>'.number_format($time, 3, '.', ' ').' s)</b>';
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$output.= "\n".'(total SQL time : ';
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$output.= number_format($page['queries_time'], 3, '.', ' ').' s)';
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$output.= "\n".'(total time : ';
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$output.= number_format( ($time+$start-$t2), 3, '.', ' ').' s)';
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if ( $result!=null and preg_match('/\s*SELECT\s+/i',$query) )
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{
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$output.= "\n".'(num rows : ';
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$output.= mysql_num_rows($result).' )';
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}
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elseif ( $result!=null
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and preg_match('/\s*INSERT|UPDATE|REPLACE|DELETE\s+/i',$query) )
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{
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$output.= "\n".'(affected rows : ';
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$output.= mysql_affected_rows().' )';
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}
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$output.= "</pre>\n";
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$debug .= $output;
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}
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return $result;
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}
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function pwg_db_nextval($column, $table)
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{
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$query = '
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SELECT IF(MAX('.$column.')+1 IS NULL, 1, MAX('.$column.')+1)
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FROM '.$table;
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list($next) = pwg_db_fetch_row(pwg_query($query));
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return $next;
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}
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function pwg_db_changes()
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{
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return mysql_affected_rows();
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}
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function pwg_db_num_rows($result)
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{
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return mysql_num_rows($result);
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}
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function pwg_db_fetch_array($result)
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{
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return mysql_fetch_array($result);
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}
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function pwg_db_fetch_assoc($result)
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{
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return mysql_fetch_assoc($result);
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}
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function pwg_db_fetch_row($result)
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{
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return mysql_fetch_row($result);
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}
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function pwg_db_fetch_object($result)
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{
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return mysql_fetch_object($result);
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}
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function pwg_db_free_result($result)
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{
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return mysql_free_result($result);
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}
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function pwg_db_real_escape_string($s)
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{
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return mysql_real_escape_string($s);
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}
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function pwg_db_insert_id()
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{
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return mysql_insert_id();
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}
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function pwg_db_errno()
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{
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return mysql_errno();
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}
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function pwg_db_error()
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{
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return mysql_error();
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}
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function pwg_db_close()
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{
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return mysql_close();
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}
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/**
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*
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* complex functions
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*
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*/
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define('MASS_UPDATES_SKIP_EMPTY', 1);
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/**
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* updates multiple lines in a table
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*
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* @param string table_name
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* @param array dbfields
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* @param array datas
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* @param int flags - if MASS_UPDATES_SKIP_EMPTY - empty values do not overwrite existing ones
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* @return void
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*/
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function mass_updates($tablename, $dbfields, $datas, $flags=0)
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{
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if (count($datas) == 0)
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return;
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// depending on the MySQL version, we use the multi table update or N update queries
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if (count($datas) < 10)
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{
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foreach ($datas as $data)
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{
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$query = '
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UPDATE '.$tablename.'
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SET ';
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$is_first = true;
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foreach ($dbfields['update'] as $key)
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{
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$separator = $is_first ? '' : ",\n ";
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if (isset($data[$key]) and $data[$key] != '')
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{
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$query.= $separator.$key.' = \''.$data[$key].'\'';
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}
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else
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{
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if ( $flags & MASS_UPDATES_SKIP_EMPTY )
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continue; // next field
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$query.= "$separator$key = NULL";
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}
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$is_first = false;
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}
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if (!$is_first)
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{// only if one field at least updated
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$query.= '
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WHERE ';
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$is_first = true;
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foreach ($dbfields['primary'] as $key)
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{
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if (!$is_first)
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{
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$query.= ' AND ';
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}
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if ( isset($data[$key]) )
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{
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$query.= $key.' = \''.$data[$key].'\'';
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}
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else
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{
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$query.= $key.' IS NULL';
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}
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$is_first = false;
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}
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pwg_query($query);
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}
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} // foreach update
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} // if mysql_ver or count<X
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else
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{
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// creation of the temporary table
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$query = '
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SHOW FULL COLUMNS FROM '.$tablename;
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$result = pwg_query($query);
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$columns = array();
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$all_fields = array_merge($dbfields['primary'], $dbfields['update']);
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while ($row = pwg_db_fetch_assoc($result))
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{
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if (in_array($row['Field'], $all_fields))
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{
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$column = $row['Field'];
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$column.= ' '.$row['Type'];
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$nullable = true;
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if (!isset($row['Null']) or $row['Null'] == '' or $row['Null']=='NO')
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{
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$column.= ' NOT NULL';
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$nullable = false;
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}
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if (isset($row['Default']))
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{
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$column.= " default '".$row['Default']."'";
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}
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elseif ($nullable)
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{
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$column.= " default NULL";
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}
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if (isset($row['Collation']) and $row['Collation'] != 'NULL')
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{
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$column.= " collate '".$row['Collation']."'";
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}
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$columns[] = $column;
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}
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}
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$temporary_tablename = $tablename.'_'.micro_seconds();
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$query = '
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CREATE TABLE '.$temporary_tablename.'
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(
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'.implode(",\n ", $columns).',
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UNIQUE KEY the_key ('.implode(',', $dbfields['primary']).')
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)';
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pwg_query($query);
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mass_inserts($temporary_tablename, $all_fields, $datas);
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if ( $flags & MASS_UPDATES_SKIP_EMPTY )
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$func_set = create_function('$s', 'return "t1.$s = IFNULL(t2.$s, t1.$s)";');
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else
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$func_set = create_function('$s', 'return "t1.$s = t2.$s";');
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// update of images table by joining with temporary table
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$query = '
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UPDATE '.$tablename.' AS t1, '.$temporary_tablename.' AS t2
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SET '.
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implode(
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"\n , ",
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array_map($func_set,$dbfields['update'])
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).'
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WHERE '.
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implode(
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"\n AND ",
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array_map(
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create_function('$s', 'return "t1.$s = t2.$s";'),
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$dbfields['primary']
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)
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);
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pwg_query($query);
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$query = '
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DROP TABLE '.$temporary_tablename;
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pwg_query($query);
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}
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}
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/**
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* updates one line in a table
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*
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* @param string table_name
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* @param array set_fields
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* @param array where_fields
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* @param int flags - if MASS_UPDATES_SKIP_EMPTY - empty values do not overwrite existing ones
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* @return void
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*/
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function single_update($tablename, $set_fields, $where_fields, $flags=0)
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{
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if (count($set_fields) == 0)
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{
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return;
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}
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$query = '
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UPDATE '.$tablename.'
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SET ';
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$is_first = true;
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foreach ($set_fields as $key => $value)
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{
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$separator = $is_first ? '' : ",\n ";
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if (isset($value) and $value !== '')
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{
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$query.= $separator.$key.' = \''.$value.'\'';
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}
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else
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{
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if ( $flags & MASS_UPDATES_SKIP_EMPTY )
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continue; // next field
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$query.= "$separator$key = NULL";
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}
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$is_first = false;
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}
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if (!$is_first)
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{// only if one field at least updated
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$query.= '
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WHERE ';
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$is_first = true;
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foreach ($where_fields as $key => $value)
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{
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if (!$is_first)
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{
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$query.= ' AND ';
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}
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if ( isset($value) )
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{
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$query.= $key.' = \''.$value.'\'';
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}
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else
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{
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$query.= $key.' IS NULL';
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}
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$is_first = false;
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}
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pwg_query($query);
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}
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}
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/**
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* inserts multiple lines in a table
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*
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* @param string table_name
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* @param array dbfields
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* @param array inserts
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* @return void
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*/
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function mass_inserts($table_name, $dbfields, $datas, $options=array())
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{
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$ignore = '';
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if (isset($options['ignore']) and $options['ignore'])
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{
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$ignore = 'IGNORE';
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}
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if (count($datas) != 0)
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{
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$first = true;
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$query = 'SHOW VARIABLES LIKE \'max_allowed_packet\'';
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list(, $packet_size) = pwg_db_fetch_row(pwg_query($query));
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$packet_size = $packet_size - 2000; // The last list of values MUST not exceed 2000 character*/
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$query = '';
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foreach ($datas as $insert)
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{
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if (strlen($query) >= $packet_size)
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{
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pwg_query($query);
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$first = true;
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}
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if ($first)
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{
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$query = '
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INSERT '.$ignore.' INTO '.$table_name.'
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('.implode(',', $dbfields).')
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VALUES';
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$first = false;
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}
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else
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{
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$query .= '
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, ';
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}
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$query .= '(';
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foreach ($dbfields as $field_id => $dbfield)
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{
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if ($field_id > 0)
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{
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$query .= ',';
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}
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if (!isset($insert[$dbfield]) or $insert[$dbfield] === '')
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{
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$query .= 'NULL';
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}
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else
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{
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$query .= "'".$insert[$dbfield]."'";
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}
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}
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$query .= ')';
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}
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pwg_query($query);
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}
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}
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/**
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* inserts one line in a table
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*
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* @param string table_name
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* @param array dbfields
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* @param array insert
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* @return void
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*/
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function single_insert($table_name, $data)
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{
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if (count($data) != 0)
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{
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$query = '
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INSERT INTO '.$table_name.'
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('.implode(',', array_keys($data)).')
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VALUES';
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$query .= '(';
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$is_first = true;
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foreach ($data as $key => $value)
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{
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if (!$is_first)
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{
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$query .= ',';
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}
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else
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{
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$is_first = false;
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}
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if ($value === '')
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{
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$query .= 'NULL';
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}
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else
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{
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$query .= "'".$value."'";
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}
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}
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$query .= ')';
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pwg_query($query);
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}
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}
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/**
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* Do maintenance on all PWG tables
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*
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* @return none
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*/
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function do_maintenance_all_tables()
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{
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global $prefixeTable, $page;
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$all_tables = array();
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// List all tables
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$query = 'SHOW TABLES LIKE \''.$prefixeTable.'%\'';
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$result = pwg_query($query);
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while ($row = pwg_db_fetch_row($result))
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{
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$all_tables[] = $row[0];
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}
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// Repair all tables
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$query = 'REPAIR TABLE '.implode(', ', $all_tables);
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$mysql_rc = pwg_query($query);
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// Re-Order all tables
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foreach ($all_tables as $table_name)
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{
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$all_primary_key = array();
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$query = 'DESC '.$table_name.';';
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$result = pwg_query($query);
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while ($row = pwg_db_fetch_assoc($result))
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{
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if ($row['Key'] == 'PRI')
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{
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$all_primary_key[] = $row['Field'];
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}
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}
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if (count($all_primary_key) != 0)
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{
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$query = 'ALTER TABLE '.$table_name.' ORDER BY '.implode(', ', $all_primary_key).';';
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$mysql_rc = $mysql_rc && pwg_query($query);
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}
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}
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// Optimize all tables
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$query = 'OPTIMIZE TABLE '.implode(', ', $all_tables);
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$mysql_rc = $mysql_rc && pwg_query($query);
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if ($mysql_rc)
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{
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$page['infos'][] = l10n('All optimizations have been successfully completed.');
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}
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else
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{
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$page['errors'][] = l10n('Optimizations have been completed with some errors.');
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}
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}
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function pwg_db_concat($array)
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{
|
|
$string = implode($array, ',');
|
|
return 'CONCAT('. $string.')';
|
|
}
|
|
|
|
function pwg_db_concat_ws($array, $separator)
|
|
{
|
|
$string = implode($array, ',');
|
|
return 'CONCAT_WS(\''.$separator.'\','. $string.')';
|
|
}
|
|
|
|
function pwg_db_cast_to_text($string)
|
|
{
|
|
return $string;
|
|
}
|
|
|
|
/**
|
|
* returns an array containing the possible values of an enum field
|
|
*
|
|
* @param string tablename
|
|
* @param string fieldname
|
|
*/
|
|
function get_enums($table, $field)
|
|
{
|
|
// retrieving the properties of the table. Each line represents a field :
|
|
// columns are 'Field', 'Type'
|
|
$result = pwg_query('desc '.$table);
|
|
while ($row = pwg_db_fetch_assoc($result))
|
|
{
|
|
// we are only interested in the the field given in parameter for the
|
|
// function
|
|
if ($row['Field'] == $field)
|
|
{
|
|
// retrieving possible values of the enum field
|
|
// enum('blue','green','black')
|
|
$options = explode(',', substr($row['Type'], 5, -1));
|
|
foreach ($options as $i => $option)
|
|
{
|
|
$options[$i] = str_replace("'", '',$option);
|
|
}
|
|
}
|
|
}
|
|
pwg_db_free_result($result);
|
|
return $options;
|
|
}
|
|
|
|
/**
|
|
* Smartly checks if a variable is equivalent to true or false
|
|
*
|
|
* @param mixed input
|
|
* @return bool
|
|
*/
|
|
function get_boolean($input)
|
|
{
|
|
if ('false' === strtolower($input))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
return (bool)$input;
|
|
}
|
|
|
|
/**
|
|
* returns boolean string 'true' or 'false' if the given var is boolean
|
|
*
|
|
* @param mixed $var
|
|
* @return mixed
|
|
*/
|
|
function boolean_to_string($var)
|
|
{
|
|
if (is_bool($var))
|
|
{
|
|
return $var ? 'true' : 'false';
|
|
}
|
|
else
|
|
{
|
|
return $var;
|
|
}
|
|
}
|
|
|
|
/**
|
|
*
|
|
* interval and date functions
|
|
*
|
|
*/
|
|
|
|
function pwg_db_get_recent_period_expression($period, $date='CURRENT_DATE')
|
|
{
|
|
if ($date!='CURRENT_DATE')
|
|
{
|
|
$date = '\''.$date.'\'';
|
|
}
|
|
|
|
return 'SUBDATE('.$date.',INTERVAL '.$period.' DAY)';
|
|
}
|
|
|
|
function pwg_db_get_recent_period($period, $date='CURRENT_DATE')
|
|
{
|
|
$query = '
|
|
SELECT '.pwg_db_get_recent_period_expression($period);
|
|
list($d) = pwg_db_fetch_row(pwg_query($query));
|
|
|
|
return $d;
|
|
}
|
|
|
|
function pwg_db_get_flood_period_expression($seconds)
|
|
{
|
|
return 'SUBDATE(now(), INTERVAL '.$seconds.' SECOND)';
|
|
}
|
|
|
|
function pwg_db_get_hour($date)
|
|
{
|
|
return 'hour('.$date.')';
|
|
}
|
|
|
|
function pwg_db_get_date_YYYYMM($date)
|
|
{
|
|
return 'DATE_FORMAT('.$date.', \'%Y%m\')';
|
|
}
|
|
|
|
function pwg_db_get_date_MMDD($date)
|
|
{
|
|
return 'DATE_FORMAT('.$date.', \'%m%d\')';
|
|
}
|
|
|
|
function pwg_db_get_year($date)
|
|
{
|
|
return 'YEAR('.$date.')';
|
|
}
|
|
|
|
function pwg_db_get_month($date)
|
|
{
|
|
return 'MONTH('.$date.')';
|
|
}
|
|
|
|
function pwg_db_get_week($date, $mode=null)
|
|
{
|
|
if ($mode)
|
|
{
|
|
return 'WEEK('.$date.', '.$mode.')';
|
|
}
|
|
else
|
|
{
|
|
return 'WEEK('.$date.')';
|
|
}
|
|
}
|
|
|
|
function pwg_db_get_dayofmonth($date)
|
|
{
|
|
return 'DAYOFMONTH('.$date.')';
|
|
}
|
|
|
|
function pwg_db_get_dayofweek($date)
|
|
{
|
|
return 'DAYOFWEEK('.$date.')';
|
|
}
|
|
|
|
function pwg_db_get_weekday($date)
|
|
{
|
|
return 'WEEKDAY('.$date.')';
|
|
}
|
|
|
|
function pwg_db_date_to_ts($date)
|
|
{
|
|
return 'UNIX_TIMESTAMP('.$date.')';
|
|
}
|
|
|
|
// my_error returns (or send to standard output) the message concerning the
|
|
// error occured for the last mysql query.
|
|
function my_error($header, $die)
|
|
{
|
|
$error = "[mysql error ".mysql_errno().'] '.mysql_error()."\n";
|
|
$error .= $header;
|
|
|
|
if ($die)
|
|
{
|
|
fatal_error($error);
|
|
}
|
|
echo("<pre>");
|
|
trigger_error($error, E_USER_WARNING);
|
|
echo("</pre>");
|
|
}
|
|
|
|
/**
|
|
* Builds an data array from a SQL query.
|
|
* Depending on $key_name and $value_name it can return :
|
|
*
|
|
* - an array of arrays of all fields (key=null, value=null)
|
|
* array(
|
|
* array('id'=>1, 'name'=>'DSC8956', ...),
|
|
* array('id'=>2, 'name'=>'DSC8957', ...),
|
|
* ...
|
|
* )
|
|
*
|
|
* - an array of a single field (key=null, value='...')
|
|
* array('DSC8956', 'DSC8957', ...)
|
|
*
|
|
* - an associative array of array of all fields (key='...', value=null)
|
|
* array(
|
|
* 'DSC8956' => array('id'=>1, 'name'=>'DSC8956', ...),
|
|
* 'DSC8957' => array('id'=>2, 'name'=>'DSC8957', ...),
|
|
* ...
|
|
* )
|
|
*
|
|
* - an associative array of a single field (key='...', value='...')
|
|
* array(
|
|
* 'DSC8956' => 1,
|
|
* 'DSC8957' => 2,
|
|
* ...
|
|
* )
|
|
*
|
|
* @since 2.6
|
|
*
|
|
* @param string $query
|
|
* @param string $key_name
|
|
* @param string $value_name
|
|
* @return array
|
|
*/
|
|
function query2array($query, $key_name=null, $value_name=null)
|
|
{
|
|
$result = pwg_query($query);
|
|
$data = array();
|
|
|
|
if (isset($key_name))
|
|
{
|
|
if (isset($value_name))
|
|
{
|
|
while ($row = pwg_db_fetch_assoc($result))
|
|
$data[ $row[$key_name] ] = $row[$value_name];
|
|
}
|
|
else
|
|
{
|
|
while ($row = pwg_db_fetch_assoc($result))
|
|
$data[ $row[$key_name] ] = $row;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (isset($value_name))
|
|
{
|
|
while ($row = pwg_db_fetch_assoc($result))
|
|
$data[] = $row[$value_name];
|
|
}
|
|
else
|
|
{
|
|
while ($row = pwg_db_fetch_assoc($result))
|
|
$data[] = $row;
|
|
}
|
|
}
|
|
|
|
return $data;
|
|
}
|
|
|
|
?>
|