[5146] | 1 | <?php |
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| 2 | /** |
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| 3 | * Zend Framework |
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| 4 | * |
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| 5 | * LICENSE |
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| 6 | * |
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| 7 | * This source file is subject to the new BSD license that is bundled |
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| 8 | * with this package in the file LICENSE.txt. |
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| 9 | * It is also available through the world-wide-web at this URL: |
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| 10 | * http://framework.zend.com/license/new-bsd |
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| 11 | * If you did not receive a copy of the license and are unable to |
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| 12 | * obtain it through the world-wide-web, please send an email |
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| 13 | * to license@zend.com so we can send you a copy immediately. |
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| 14 | * |
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| 15 | * @category Zend |
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| 16 | * @package Zend_Validate |
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| 17 | * @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com) |
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| 18 | * @license http://framework.zend.com/license/new-bsd New BSD License |
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| 19 | * @version $Id: Crc32.php 22668 2010-07-25 14:50:46Z thomas $ |
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| 20 | */ |
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| 21 | |
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| 22 | /** |
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| 23 | * @see Zend_Validate_File_Hash |
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| 24 | */ |
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| 25 | require_once 'Zend/Validate/File/Hash.php'; |
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| 26 | |
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| 27 | /** |
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| 28 | * Validator for the crc32 hash of given files |
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| 29 | * |
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| 30 | * @category Zend |
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| 31 | * @package Zend_Validate |
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| 32 | * @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com) |
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| 33 | * @license http://framework.zend.com/license/new-bsd New BSD License |
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| 34 | */ |
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| 35 | class Zend_Validate_File_Crc32 extends Zend_Validate_File_Hash |
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| 36 | { |
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| 37 | /** |
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| 38 | * @const string Error constants |
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| 39 | */ |
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| 40 | const DOES_NOT_MATCH = 'fileCrc32DoesNotMatch'; |
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| 41 | const NOT_DETECTED = 'fileCrc32NotDetected'; |
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| 42 | const NOT_FOUND = 'fileCrc32NotFound'; |
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| 43 | |
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| 44 | /** |
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| 45 | * @var array Error message templates |
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| 46 | */ |
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| 47 | protected $_messageTemplates = array( |
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| 48 | self::DOES_NOT_MATCH => "File '%value%' does not match the given crc32 hashes", |
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| 49 | self::NOT_DETECTED => "A crc32 hash could not be evaluated for the given file", |
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| 50 | self::NOT_FOUND => "File '%value%' is not readable or does not exist", |
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| 51 | ); |
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| 52 | |
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| 53 | /** |
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| 54 | * Hash of the file |
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| 55 | * |
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| 56 | * @var string |
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| 57 | */ |
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| 58 | protected $_hash; |
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| 59 | |
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| 60 | /** |
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| 61 | * Sets validator options |
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| 62 | * |
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| 63 | * @param string|array|Zend_Config $options |
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| 64 | * @return void |
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| 65 | */ |
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| 66 | public function __construct($options) |
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| 67 | { |
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| 68 | if ($options instanceof Zend_Config) { |
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| 69 | $options = $options->toArray(); |
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| 70 | } elseif (is_scalar($options)) { |
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| 71 | $options = array('hash1' => $options); |
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| 72 | } elseif (!is_array($options)) { |
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| 73 | require_once 'Zend/Validate/Exception.php'; |
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| 74 | throw new Zend_Validate_Exception('Invalid options to validator provided'); |
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| 75 | } |
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| 76 | |
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| 77 | $this->setCrc32($options); |
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| 78 | } |
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| 79 | |
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| 80 | /** |
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| 81 | * Returns all set crc32 hashes |
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| 82 | * |
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| 83 | * @return array |
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| 84 | */ |
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| 85 | public function getCrc32() |
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| 86 | { |
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| 87 | return $this->getHash(); |
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| 88 | } |
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| 89 | |
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| 90 | /** |
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| 91 | * Sets the crc32 hash for one or multiple files |
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| 92 | * |
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| 93 | * @param string|array $options |
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| 94 | * @return Zend_Validate_File_Hash Provides a fluent interface |
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| 95 | */ |
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| 96 | public function setHash($options) |
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| 97 | { |
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| 98 | if (!is_array($options)) { |
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| 99 | $options = array($options); |
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| 100 | } |
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| 101 | |
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| 102 | $options['algorithm'] = 'crc32'; |
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| 103 | parent::setHash($options); |
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| 104 | return $this; |
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| 105 | } |
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| 106 | |
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| 107 | /** |
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| 108 | * Sets the crc32 hash for one or multiple files |
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| 109 | * |
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| 110 | * @param string|array $options |
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| 111 | * @return Zend_Validate_File_Hash Provides a fluent interface |
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| 112 | */ |
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| 113 | public function setCrc32($options) |
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| 114 | { |
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| 115 | $this->setHash($options); |
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| 116 | return $this; |
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| 117 | } |
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| 118 | |
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| 119 | /** |
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| 120 | * Adds the crc32 hash for one or multiple files |
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| 121 | * |
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| 122 | * @param string|array $options |
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| 123 | * @return Zend_Validate_File_Hash Provides a fluent interface |
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| 124 | */ |
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| 125 | public function addHash($options) |
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| 126 | { |
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| 127 | if (!is_array($options)) { |
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| 128 | $options = array($options); |
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| 129 | } |
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| 130 | |
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| 131 | $options['algorithm'] = 'crc32'; |
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| 132 | parent::addHash($options); |
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| 133 | return $this; |
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| 134 | } |
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| 135 | |
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| 136 | /** |
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| 137 | * Adds the crc32 hash for one or multiple files |
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| 138 | * |
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| 139 | * @param string|array $options |
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| 140 | * @return Zend_Validate_File_Hash Provides a fluent interface |
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| 141 | */ |
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| 142 | public function addCrc32($options) |
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| 143 | { |
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| 144 | $this->addHash($options); |
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| 145 | return $this; |
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| 146 | } |
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| 147 | |
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| 148 | /** |
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| 149 | * Defined by Zend_Validate_Interface |
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| 150 | * |
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| 151 | * Returns true if and only if the given file confirms the set hash |
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| 152 | * |
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| 153 | * @param string $value Filename to check for hash |
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| 154 | * @param array $file File data from Zend_File_Transfer |
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| 155 | * @return boolean |
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| 156 | */ |
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| 157 | public function isValid($value, $file = null) |
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| 158 | { |
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| 159 | // Is file readable ? |
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| 160 | require_once 'Zend/Loader.php'; |
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| 161 | if (!Zend_Loader::isReadable($value)) { |
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| 162 | return $this->_throw($file, self::NOT_FOUND); |
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| 163 | } |
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| 164 | |
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| 165 | $hashes = array_unique(array_keys($this->_hash)); |
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| 166 | $filehash = hash_file('crc32', $value); |
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| 167 | if ($filehash === false) { |
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| 168 | return $this->_throw($file, self::NOT_DETECTED); |
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| 169 | } |
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| 170 | |
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| 171 | foreach($hashes as $hash) { |
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| 172 | if ($filehash === $hash) { |
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| 173 | return true; |
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| 174 | } |
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| 175 | } |
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| 176 | |
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| 177 | return $this->_throw($file, self::DOES_NOT_MATCH); |
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| 178 | } |
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| 179 | } |
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