1<?php 2// (c) Copyright by authors of the Tiki Wiki CMS Groupware Project 3// 4// All Rights Reserved. See copyright.txt for details and a complete list of authors. 5// Licensed under the GNU LESSER GENERAL PUBLIC LICENSE. See license.txt for details. 6// $Id$ 7 8//this script may only be included - so its better to die if called directly. 9if (strpos($_SERVER["SCRIPT_NAME"], basename(__FILE__)) !== false) { 10 header("location: index.php"); 11 exit; 12} 13 14// Try to detect a file max size due to upload or memory limits 15// (to do an insert into the database, the data has to be put in memory by PHP) 16$smarty = TikiLib::lib('smarty'); 17$tikilib = TikiLib::lib('tiki'); 18@$max_upload_size = $tikilib->return_bytes(ini_get('upload_max_filesize')); 19@$post_max_size = $tikilib->return_bytes(ini_get('post_max_size')); 20@$max_file_uploads = ini_get('max_file_uploads'); 21$max_upload_size_comment = tra("This is the value of your server's PHP '%s' setting"); 22 23if ($post_max_size > 0 && ( $post_max_size < $max_upload_size || $max_upload_size == 0 )) { 24 $max_upload_size = $post_max_size; 25 $max_upload_size_comment = sprintf($max_upload_size_comment, 'post_max_size'); 26} else { 27 $max_upload_size_comment = sprintf($max_upload_size_comment, 'upload_max_filesize'); 28} 29 30// Get memory limit 31@$memory_limit_ini = ini_get('memory_limit'); 32$memory_limit = $tikilib->return_bytes($memory_limit_ini); 33 34// Try to detect current memory usage or set it arbitrary to 10MB 35@$current_memory_usage = function_exists('memory_get_usage') ? (int)memory_get_usage(true) : 10 * 1024 * 1024; 36 37// TODO: this is quite deprecated code and possibly quite wrong - we no longer use ADODB and string escaping, so check what is the real limit! 38if ($prefs['fgal_use_db'] == 'y' && (empty($podCastGallery) || ! $podCastGallery)) { 39 if ($memory_limit > 0) { 40 // Estimate available memory for file upload. 41 // The result is divided by 3, because the file has to be stored twice in memory : 42 // one copy when reading the file, and two other modified copies in ADODB when adding quotes to the query variables 43 // ( due to functions like mysqli_real_escape_string that takes 200% more memory) 44 // We also reduce of a memory size of 3 MB (which is an approximation too) that may be necessary for other tasks to work 45 // 46 $remaining_memory = max(0, ((int)($memory_limit - $current_memory_usage) / 3) - (3 * 1024 * 1024)); 47 48 if ($max_upload_size > $remaining_memory) { 49 $max_upload_size = $remaining_memory; 50 $max_upload_size_comment = tra('This is an approximation based on your server memory limit:') . ' ' . $memory_limit_ini; 51 } 52 } 53} 54 55$smarty->assign("max_upload_size_comment", $max_upload_size_comment); 56$smarty->assign("max_upload_size", "$max_upload_size"); 57$smarty->assign("max_file_uploads", "$max_file_uploads"); 58