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<?php
/**
* Rule checking that uploaded file size does not exceed the given limit
*
* PHP version 5
*
* LICENSE:
*
* Copyright (c) 2006-2014, Alexey Borzov <avb@php.net>,
* Bertrand Mansion <golgote@mamasam.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * The names of the authors may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* @category HTML
* @package HTML_QuickForm2
* @author Alexey Borzov <avb@php.net>
* @author Bertrand Mansion <golgote@mamasam.com>
* @license http://opensource.org/licenses/bsd-license.php New BSD License
* @link http://pear.php.net/package/HTML_QuickForm2
*/
/**
* Base class for HTML_QuickForm2 rules
*/
require_once 'HTML/QuickForm2/Rule.php';
/**
* Rule checking that uploaded file size does not exceed the given limit
*
* The Rule needs one configuration parameter for its work: the size limit.
* This limit can be passed either to
* {@link HTML_QuickForm2_Rule::__construct() the Rule constructor} as local
* configuration or to {@link HTML_QuickForm2_Factory::registerRule()} as
* global one. As usual, global configuration overrides local one.
*
* Note that if file upload failed due to upload_max_filesize php.ini setting
* or MAX_FILE_SIZE form field, then this rule won't even be called, due to
* File element's built-in validation setting the error message.
*
* The Rule considers missing file uploads (UPLOAD_ERR_NO_FILE) valid.
*
* @category HTML
* @package HTML_QuickForm2
* @author Alexey Borzov <avb@php.net>
* @author Bertrand Mansion <golgote@mamasam.com>
* @license http://opensource.org/licenses/bsd-license.php New BSD License
* @version Release: 2.0.2
* @link http://pear.php.net/package/HTML_QuickForm2
*/
class HTML_QuickForm2_Rule_MaxFileSize extends HTML_QuickForm2_Rule
{
/**
* Validates the owner element
*
* @return bool whether uploaded file's size is within given limit
*/
protected function validateOwner()
{
$value = $this->owner->getValue();
if (!isset($value['error']) || UPLOAD_ERR_NO_FILE == $value['error']) {
return true;
}
return ($this->getConfig() >= @filesize($value['tmp_name']));
}
/**
* Sets maximum allowed file size
*
* @param int $config Maximum allowed size
*
* @return HTML_QuickForm2_Rule
* @throws HTML_QuickForm2_InvalidArgumentException if a bogus size limit was provided
*/
public function setConfig($config)
{
if (0 >= $config) {
throw new HTML_QuickForm2_InvalidArgumentException(
'MaxFileSize Rule requires a positive size limit, ' .
preg_replace('/\s+/', ' ', var_export($config, true)) . ' given'
);
}
return parent::setConfig($config);
}
/**
* Sets the element that will be validated by this rule
*
* @param HTML_QuickForm2_Node $owner File upload field to validate
*
* @throws HTML_QuickForm2_InvalidArgumentException if trying to use
* this Rule on something that isn't a file upload field
*/
public function setOwner(HTML_QuickForm2_Node $owner)
{
if (!$owner instanceof HTML_QuickForm2_Element_InputFile) {
throw new HTML_QuickForm2_InvalidArgumentException(
'MaxFileSize Rule can only validate file upload fields, '.
get_class($owner) . ' given'
);
}
parent::setOwner($owner);
}
}
?>
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