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<?php
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/**
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* Project: SmartyValidate: Form Validator for the Smarty Template Engine
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* File: validate_criteria.isFileSize.php
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* Author: Monte Ohrt <monte at newdigitalgroup dot com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but 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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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* @link http://www.phpinsider.com/php/code/SmartyValidate/
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* @copyright 2001-2005 New Digital Group, Inc.
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* @author Monte Ohrt <monte at newdigitalgroup dot com>
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* @package SmartyValidate
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*/
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/**
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* test if a value is a valid file size.
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*
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* @param string $value the value being tested
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* @param boolean $empty if field can be empty
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* @param array params validate parameter values
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* @param array formvars form var values
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*/
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function smarty_validate_criteria_isFileSize($value, $empty, &$params, &$formvars) {
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$_field = $params['field'];
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$_max = isset($params['field2']) ? $params['field2'] : trim($params['max']);
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if(!isset($_FILES[$_field]))
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// nothing in the form
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return false;
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if($_FILES[$_field]['error'] == 4)
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// no file uploaded
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return $empty;
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if(!isset($_max)) {
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trigger_error("SmartyValidate: [isFileSize] 'max' attribute is missing.");
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return false;
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}
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if(!preg_match('!^(\d+)([bkmg](b)?)?$!i', $_max, $_match)) {
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trigger_error("SmartyValidate: [isFileSize] 'max' attribute is invalid.");
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return false;
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}
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$_size = $_match[1];
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$_type = strtolower($_match[2]);
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switch($_type) {
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case 'k':
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$_maxsize = $_size * 1024;
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break;
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case 'm':
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$_maxsize = $_size * 1024 * 1024;
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break;
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case 'g':
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$_maxsize = $_size * 1024 * 1024 * 1024;
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break;
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case 'b':
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default:
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$_maxsize = $_size;
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break;
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}
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return $_FILES[$_field]['size'] <= $_maxsize;
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}
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?>
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