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<?php
/**
* Zend Framework
*
* LICENSE
*
* This source file is subject to the new BSD license that is bundled
* with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://framework.zend.com/license/new-bsd
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@zend.com so we can send you a copy immediately.
*
* @category Zend
* @package Zend_Validate
* @copyright Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id$
*/
/**
* @see Zend_Validate_Abstract
*/
require_once 'Zend/Validate/Abstract.php';
/**
* Validator for the image size of a image file
*
* @category Zend
* @package Zend_Validate
* @copyright Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
class Zend_Validate_File_ImageSize extends Zend_Validate_Abstract
{
/**
* @const string Error constants
*/
const WIDTH_TOO_BIG = 'fileImageSizeWidthTooBig';
const WIDTH_TOO_SMALL = 'fileImageSizeWidthTooSmall';
const HEIGHT_TOO_BIG = 'fileImageSizeHeightTooBig';
const HEIGHT_TOO_SMALL = 'fileImageSizeHeightTooSmall';
const NOT_DETECTED = 'fileImageSizeNotDetected';
const NOT_READABLE = 'fileImageSizeNotReadable';
/**
* @var array Error message template
*/
protected $_messageTemplates = array(
self::WIDTH_TOO_BIG => "Maximum allowed width for image '%value%' should be '%maxwidth%' but '%width%' detected",
self::WIDTH_TOO_SMALL => "Minimum expected width for image '%value%' should be '%minwidth%' but '%width%' detected",
self::HEIGHT_TOO_BIG => "Maximum allowed height for image '%value%' should be '%maxheight%' but '%height%' detected",
self::HEIGHT_TOO_SMALL => "Minimum expected height for image '%value%' should be '%minheight%' but '%height%' detected",
self::NOT_DETECTED => "The size of image '%value%' could not be detected",
self::NOT_READABLE => "File '%value%' is not readable or does not exist",
);
/**
* @var array Error message template variables
*/
protected $_messageVariables = array(
'minwidth' => '_minwidth',
'maxwidth' => '_maxwidth',
'minheight' => '_minheight',
'maxheight' => '_maxheight',
'width' => '_width',
'height' => '_height'
);
/**
* Minimum image width
*
* @var integer
*/
protected $_minwidth;
/**
* Maximum image width
*
* @var integer
*/
protected $_maxwidth;
/**
* Minimum image height
*
* @var integer
*/
protected $_minheight;
/**
* Maximum image height
*
* @var integer
*/
protected $_maxheight;
/**
* Detected width
*
* @var integer
*/
protected $_width;
/**
* Detected height
*
* @var integer
*/
protected $_height;
/**
* Sets validator options
*
* Accepts the following option keys:
* - minheight
* - minwidth
* - maxheight
* - maxwidth
*
* @param Zend_Config|array $options
* @return void
*/
public function __construct($options)
{
if ($options instanceof Zend_Config) {
$options = $options->toArray();
} elseif (1 < func_num_args()) {
if (!is_array($options)) {
$options = array('minwidth' => $options);
}
$argv = func_get_args();
array_shift($argv);
$options['minheight'] = array_shift($argv);
if (!empty($argv)) {
$options['maxwidth'] = array_shift($argv);
if (!empty($argv)) {
$options['maxheight'] = array_shift($argv);
}
}
} else if (!is_array($options)) {
require_once 'Zend/Validate/Exception.php';
throw new Zend_Validate_Exception ('Invalid options to validator provided');
}
if (isset($options['minheight']) || isset($options['minwidth'])) {
$this->setImageMin($options);
}
if (isset($options['maxheight']) || isset($options['maxwidth'])) {
$this->setImageMax($options);
}
}
/**
* Returns the set minimum image sizes
*
* @return array
*/
public function getImageMin()
{
return array('minwidth' => $this->_minwidth, 'minheight' => $this->_minheight);
}
/**
* Returns the set maximum image sizes
*
* @return array
*/
public function getImageMax()
{
return array('maxwidth' => $this->_maxwidth, 'maxheight' => $this->_maxheight);
}
/**
* Returns the set image width sizes
*
* @return array
*/
public function getImageWidth()
{
return array('minwidth' => $this->_minwidth, 'maxwidth' => $this->_maxwidth);
}
/**
* Returns the set image height sizes
*
* @return array
*/
public function getImageHeight()
{
return array('minheight' => $this->_minheight, 'maxheight' => $this->_maxheight);
}
/**
* Sets the minimum image size
*
* @param array $options The minimum image dimensions
* @throws Zend_Validate_Exception When minwidth is greater than maxwidth
* @throws Zend_Validate_Exception When minheight is greater than maxheight
* @return Zend_Validate_File_ImageSize Provides a fluent interface
*/
public function setImageMin($options)
{
if (isset($options['minwidth'])) {
if (($this->_maxwidth !== null) and ($options['minwidth'] > $this->_maxwidth)) {
require_once 'Zend/Validate/Exception.php';
throw new Zend_Validate_Exception("The minimum image width must be less than or equal to the "
. " maximum image width, but {$options['minwidth']} > {$this->_maxwidth}");
}
}
if (isset($options['maxheight'])) {
if (($this->_maxheight !== null) and ($options['minheight'] > $this->_maxheight)) {
require_once 'Zend/Validate/Exception.php';
throw new Zend_Validate_Exception("The minimum image height must be less than or equal to the "
. " maximum image height, but {$options['minheight']} > {$this->_maxheight}");
}
}
if (isset($options['minwidth'])) {
$this->_minwidth = (int) $options['minwidth'];
}
if (isset($options['minheight'])) {
$this->_minheight = (int) $options['minheight'];
}
return $this;
}
/**
* Sets the maximum image size
*
* @param array $options The maximum image dimensions
* @throws Zend_Validate_Exception When maxwidth is smaller than minwidth
* @throws Zend_Validate_Exception When maxheight is smaller than minheight
* @return Zend_Validate_StringLength Provides a fluent interface
*/
public function setImageMax($options)
{
if (isset($options['maxwidth'])) {
if (($this->_minwidth !== null) and ($options['maxwidth'] < $this->_minwidth)) {
require_once 'Zend/Validate/Exception.php';
throw new Zend_Validate_Exception("The maximum image width must be greater than or equal to the "
. "minimum image width, but {$options['maxwidth']} < {$this->_minwidth}");
}
}
if (isset($options['maxheight'])) {
if (($this->_minheight !== null) and ($options['maxheight'] < $this->_minheight)) {
require_once 'Zend/Validate/Exception.php';
throw new Zend_Validate_Exception("The maximum image height must be greater than or equal to the "
. "minimum image height, but {$options['maxheight']} < {$this->_minwidth}");
}
}
if (isset($options['maxwidth'])) {
$this->_maxwidth = (int) $options['maxwidth'];
}
if (isset($options['maxheight'])) {
$this->_maxheight = (int) $options['maxheight'];
}
return $this;
}
/**
* Sets the mimimum and maximum image width
*
* @param array $options The image width dimensions
* @return Zend_Validate_File_ImageSize Provides a fluent interface
*/
public function setImageWidth($options)
{
$this->setImageMin($options);
$this->setImageMax($options);
return $this;
}
/**
* Sets the mimimum and maximum image height
*
* @param array $options The image height dimensions
* @return Zend_Validate_File_ImageSize Provides a fluent interface
*/
public function setImageHeight($options)
{
$this->setImageMin($options);
$this->setImageMax($options);
return $this;
}
/**
* Defined by Zend_Validate_Interface
*
* Returns true if and only if the imagesize of $value is at least min and
* not bigger than max
*
* @param string $value Real file to check for image size
* @param array $file File data from Zend_File_Transfer
* @return boolean
*/
public function isValid($value, $file = null)
{
// Is file readable ?
require_once 'Zend/Loader.php';
if (!Zend_Loader::isReadable($value)) {
return $this->_throw($file, self::NOT_READABLE);
}
$size = @getimagesize($value);
$this->_setValue($file);
if (empty($size) or ($size[0] === 0) or ($size[1] === 0)) {
return $this->_throw($file, self::NOT_DETECTED);
}
$this->_width = $size[0];
$this->_height = $size[1];
if ($this->_width < $this->_minwidth) {
$this->_throw($file, self::WIDTH_TOO_SMALL);
}
if (($this->_maxwidth !== null) and ($this->_maxwidth < $this->_width)) {
$this->_throw($file, self::WIDTH_TOO_BIG);
}
if ($this->_height < $this->_minheight) {
$this->_throw($file, self::HEIGHT_TOO_SMALL);
}
if (($this->_maxheight !== null) and ($this->_maxheight < $this->_height)) {
$this->_throw($file, self::HEIGHT_TOO_BIG);
}
if (count($this->_messages) > 0) {
return false;
}
return true;
}
/**
* Throws an error of the given type
*
* @param string $file
* @param string $errorType
* @return false
*/
protected function _throw($file, $errorType)
{
if ($file !== null) {
$this->_value = $file['name'];
}
$this->_error($errorType);
return false;
}
}
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