mirror of
https://github.com/yunluo/gdk.git
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309 lines
8.4 KiB
PHP
309 lines
8.4 KiB
PHP
<?php
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/**
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* Zend Framework
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*
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* LICENSE
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*
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* This source file is subject to the new BSD license that is bundled
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* with this package in the file LICENSE.txt.
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* It is also available through the world-wide-web at this URL:
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* http://framework.zend.com/license/new-bsd
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* If you did not receive a copy of the license and are unable to
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* obtain it through the world-wide-web, please send an email
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* to license@zend.com so we can send you a copy immediately.
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*
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* @category Zend
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* @package Zend_Validate
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* @copyright Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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* @version $Id: $
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*/
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/**
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* @see Zend_Validate_Abstract
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*/
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require_once 'Zend/Validate/Abstract.php';
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/**
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* Validator for the maximum size of a file up to a max of 2GB
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*
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* @category Zend
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* @package Zend_Validate
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* @copyright Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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*/
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class Zend_Validate_File_Size extends Zend_Validate_Abstract
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{
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/**#@+
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* @const string Error constants
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*/
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const TOO_BIG = 'fileSizeTooBig';
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const TOO_SMALL = 'fileSizeTooSmall';
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const NOT_FOUND = 'fileSizeNotFound';
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/**#@-*/
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/**
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* @var array Error message templates
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*/
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protected $_messageTemplates = array(
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self::TOO_BIG => "The file '%value%' is bigger than allowed",
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self::TOO_SMALL => "The file '%value%' is smaller than allowed",
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self::NOT_FOUND => "The file '%value%' could not be found"
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);
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/**
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* @var array Error message template variables
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*/
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protected $_messageVariables = array(
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'min' => '_min',
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'max' => '_max'
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);
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/**
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* Minimum filesize
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* @var integer
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*/
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protected $_min;
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/**
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* Maximum filesize
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*
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* If null, there is no maximum filesize
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*
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* @var integer|null
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*/
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protected $_max;
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/**
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* Sets validator options
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*
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* Min limits the filesize, when used with max=null it is the maximum filesize
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* It also accepts an array with the keys 'min' and 'max'
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*
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* @param integer|array $min Minimum filesize
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* @param integer $max Maximum filesize
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* @return void
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*/
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public function __construct($min, $max = null)
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{
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if (is_array($min)) {
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$count = count($min);
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if (array_key_exists('min', $min)) {
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if (array_key_exists('max', $min)) {
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$max = $min['max'];
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}
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$min = $min['min'];
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} elseif ($count === 2) {
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$minValue = array_shift($min);
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$max = array_shift($min);
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$min = $minValue;
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} elseif($count === 1) {
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$min = array_shift($min);
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$max = null;
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} else {
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$min = 0;
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$max = null;
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}
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}
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if (empty($max)) {
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$max = $min;
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$min = 0;
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}
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$this->setMin($min);
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$this->setMax($max);
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}
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/**
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* Returns the minimum filesize
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*
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* @param boolean $unit Return the value with unit, when false the plan bytes will be returned
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* @return integer
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*/
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public function getMin($unit = true)
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{
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$unit = (bool) $unit;
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$min = $this->_min;
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if ($unit) {
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$min = $this->_toByteString($min);
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}
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return $min;
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}
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/**
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* Sets the minimum filesize
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*
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* @param integer $min The minimum filesize
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* @return Zend_Validate_File_Size Provides a fluent interface
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* @throws Zend_Validate_Exception When min is greater than max
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*/
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public function setMin($min)
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{
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$min = (integer) $this->_fromByteString($min);
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if (($this->_max !== null) && ($min > $this->_max)) {
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require_once 'Zend/Validate/Exception.php';
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throw new Zend_Validate_Exception("The minimum must be less than or equal to the maximum filesize, but $min >"
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. " {$this->_max}");
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}
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$this->_min = max(0, $min);
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return $this;
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}
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/**
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* Returns the maximum filesize
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*
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* @param boolean $unit Return the value with unit, when false the plan bytes will be returned
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* @return integer|null
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*/
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public function getMax($unit = true)
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{
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$unit = (bool) $unit;
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$max = $this->_max;
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if ($unit) {
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$max = $this->_toByteString($max);
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}
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return $max;
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}
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/**
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* Sets the maximum filesize
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*
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* @param integer|null $max The maximum filesize
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* @return Zend_Validate_StringLength Provides a fluent interface
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* @throws Zend_Validate_Exception When max is smaller than min
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*/
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public function setMax($max)
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{
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$max = (integer) $this->_fromByteString($max);
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if (($this->_min !== null) && ($max < $this->_min)) {
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require_once 'Zend/Validate/Exception.php';
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throw new Zend_Validate_Exception("The maximum must be greater than or equal to the minimum filesize, but "
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. "$max < {$this->_min}");
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} else {
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$this->_max = $max;
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}
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return $this;
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}
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/**
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* Defined by Zend_Validate_Interface
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*
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* Returns true if and only if the filesize of $value is at least min and
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* not bigger than max (when max is not null).
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*
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* @param string $value Real file to check for size
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* @param array $file File data from Zend_File_Transfer
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* @return boolean
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*/
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public function isValid($value, $file = null)
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{
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// Is file readable ?
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if (!@is_readable($value)) {
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$this->_throw($file, self::NOT_FOUND);
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return false;
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}
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// limited to 4GB files
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$size = sprintf("%u",@filesize($value));
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$this->_setValue($size);
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// Check to see if it's smaller than min size
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if (($this->_min !== null) && ($size < $this->_min)) {
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$this->_throw($file, self::TOO_SMALL);
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}
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// Check to see if it's larger than max size
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if (($this->_max !== null) && ($this->_max < $size)) {
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$this->_throw($file, self::TOO_BIG);
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}
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if (count($this->_messages) > 0) {
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return false;
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} else {
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return true;
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}
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}
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/**
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* Returns the formatted size
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*
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* @param integer $size
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* @return string
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*/
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protected function _toByteString($size)
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{
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$sizes = array('B', 'kB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB');
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for ($i=0; $size > 1024 && $i < 9; $i++) {
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$size /= 1024;
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}
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return round($size, 2).$sizes[$i];
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}
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/**
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* Returns the unformatted size
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*
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* @param string $size
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* @return integer
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*/
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protected function _fromByteString($size)
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{
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if (is_numeric($size)) {
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return (integer) $size;
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}
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$type = trim(substr($size, -2));
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$value = substr($size, 0, -2);
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switch (strtoupper($type)) {
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case 'YB':
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$value *= (1024 * 1024 * 1024 * 1024 * 1024 * 1024 * 1024 * 1024);
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break;
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case 'ZB':
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$value *= (1024 * 1024 * 1024 * 1024 * 1024 * 1024 * 1024);
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break;
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case 'EB':
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$value *= (1024 * 1024 * 1024 * 1024 * 1024 * 1024);
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break;
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case 'PB':
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$value *= (1024 * 1024 * 1024 * 1024 * 1024);
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break;
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case 'TB':
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$value *= (1024 * 1024 * 1024 * 1024);
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break;
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case 'GB':
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$value *= (1024 * 1024 * 1024);
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break;
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case 'MB':
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$value *= (1024 * 1024);
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break;
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case 'KB':
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$value *= 1024;
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break;
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default:
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break;
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}
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return $value;
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}
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/**
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* Throws an error of the given type
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*
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* @param string $file
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* @param string $errorType
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* @return false
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*/
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protected function _throw($file, $errorType)
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{
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if ($file !== null) {
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$this->_value = $file['name'];
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}
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$this->_error($errorType);
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return false;
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}
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}
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