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Extension.php
233 lines
| 1 | <?php |
| 2 | /** |
| 3 | * Zend Framework |
| 4 | * |
| 5 | * LICENSE |
| 6 | * |
| 7 | * This source file is subject to the new BSD license that is bundled |
| 8 | * with this package in the file LICENSE.txt. |
| 9 | * It is also available through the world-wide-web at this URL: |
| 10 | * http://framework.zend.com/license/new-bsd |
| 11 | * If you did not receive a copy of the license and are unable to |
| 12 | * obtain it through the world-wide-web, please send an email |
| 13 | * to license@zend.com so we can send you a copy immediately. |
| 14 | * |
| 15 | * @category Zend |
| 16 | * @package Zend_Validate |
| 17 | * @copyright Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com) |
| 18 | * @license http://framework.zend.com/license/new-bsd New BSD License |
| 19 | * @version $Id: Extension.php 23775 2011-03-01 17:25:24Z ralph $ |
| 20 | */ |
| 21 | |
| 22 | /** |
| 23 | * @see Zend_Validate_Abstract |
| 24 | */ |
| 25 | // require_once 'Zend/Validate/Abstract.php'; |
| 26 | |
| 27 | /** |
| 28 | * Validator for the file extension of a file |
| 29 | * |
| 30 | * @category Zend |
| 31 | * @package Zend_Validate |
| 32 | * @copyright Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com) |
| 33 | * @license http://framework.zend.com/license/new-bsd New BSD License |
| 34 | */ |
| 35 | class Zend_Validate_File_Extension extends Zend_Validate_Abstract |
| 36 | { |
| 37 | /** |
| 38 | * @const string Error constants |
| 39 | */ |
| 40 | const FALSE_EXTENSION = 'fileExtensionFalse'; |
| 41 | const NOT_FOUND = 'fileExtensionNotFound'; |
| 42 | |
| 43 | /** |
| 44 | * @var array Error message templates |
| 45 | */ |
| 46 | protected $_messageTemplates = array( |
| 47 | self::FALSE_EXTENSION => "File '%value%' has a false extension", |
| 48 | self::NOT_FOUND => "File '%value%' is not readable or does not exist", |
| 49 | ); |
| 50 | |
| 51 | /** |
| 52 | * Internal list of extensions |
| 53 | * @var string |
| 54 | */ |
| 55 | protected $_extension = ''; |
| 56 | |
| 57 | /** |
| 58 | * Validate case sensitive |
| 59 | * |
| 60 | * @var boolean |
| 61 | */ |
| 62 | protected $_case = false; |
| 63 | |
| 64 | /** |
| 65 | * @var array Error message template variables |
| 66 | */ |
| 67 | protected $_messageVariables = array( |
| 68 | 'extension' => '_extension' |
| 69 | ); |
| 70 | |
| 71 | /** |
| 72 | * Sets validator options |
| 73 | * |
| 74 | * @param string|array|Zend_Config $options |
| 75 | * @return void |
| 76 | */ |
| 77 | public function __construct($options) |
| 78 | { |
| 79 | if ($options instanceof Zend_Config) { |
| 80 | $options = $options->toArray(); |
| 81 | } |
| 82 | |
| 83 | if (1 < func_num_args()) { |
| 84 | $case = func_get_arg(1); |
| 85 | $this->setCase($case); |
| 86 | } |
| 87 | |
| 88 | if (is_array($options) and isset($options['case'])) { |
| 89 | $this->setCase($options['case']); |
| 90 | unset($options['case']); |
| 91 | } |
| 92 | |
| 93 | $this->setExtension($options); |
| 94 | } |
| 95 | |
| 96 | /** |
| 97 | * Returns the case option |
| 98 | * |
| 99 | * @return boolean |
| 100 | */ |
| 101 | public function getCase() |
| 102 | { |
| 103 | return $this->_case; |
| 104 | } |
| 105 | |
| 106 | /** |
| 107 | * Sets the case to use |
| 108 | * |
| 109 | * @param boolean $case |
| 110 | * @return Zend_Validate_File_Extension Provides a fluent interface |
| 111 | */ |
| 112 | public function setCase($case) |
| 113 | { |
| 114 | $this->_case = (boolean) $case; |
| 115 | return $this; |
| 116 | } |
| 117 | |
| 118 | /** |
| 119 | * Returns the set file extension |
| 120 | * |
| 121 | * @return array |
| 122 | */ |
| 123 | public function getExtension() |
| 124 | { |
| 125 | $extension = explode(',', $this->_extension); |
| 126 | |
| 127 | return $extension; |
| 128 | } |
| 129 | |
| 130 | /** |
| 131 | * Sets the file extensions |
| 132 | * |
| 133 | * @param string|array $extension The extensions to validate |
| 134 | * @return Zend_Validate_File_Extension Provides a fluent interface |
| 135 | */ |
| 136 | public function setExtension($extension) |
| 137 | { |
| 138 | $this->_extension = null; |
| 139 | $this->addExtension($extension); |
| 140 | return $this; |
| 141 | } |
| 142 | |
| 143 | /** |
| 144 | * Adds the file extensions |
| 145 | * |
| 146 | * @param string|array $extension The extensions to add for validation |
| 147 | * @return Zend_Validate_File_Extension Provides a fluent interface |
| 148 | */ |
| 149 | public function addExtension($extension) |
| 150 | { |
| 151 | $extensions = $this->getExtension(); |
| 152 | if (is_string($extension)) { |
| 153 | $extension = explode(',', $extension); |
| 154 | } |
| 155 | |
| 156 | foreach ($extension as $content) { |
| 157 | if (empty($content) || !is_string($content)) { |
| 158 | continue; |
| 159 | } |
| 160 | |
| 161 | $extensions[] = trim($content); |
| 162 | } |
| 163 | $extensions = array_unique($extensions); |
| 164 | |
| 165 | // Sanity check to ensure no empty values |
| 166 | foreach ($extensions as $key => $ext) { |
| 167 | if (empty($ext)) { |
| 168 | unset($extensions[$key]); |
| 169 | } |
| 170 | } |
| 171 | |
| 172 | $this->_extension = implode(',', $extensions); |
| 173 | |
| 174 | return $this; |
| 175 | } |
| 176 | |
| 177 | /** |
| 178 | * Defined by Zend_Validate_Interface |
| 179 | * |
| 180 | * Returns true if and only if the fileextension of $value is included in the |
| 181 | * set extension list |
| 182 | * |
| 183 | * @param string $value Real file to check for extension |
| 184 | * @param array $file File data from Zend_File_Transfer |
| 185 | * @return boolean |
| 186 | */ |
| 187 | public function isValid($value, $file = null) |
| 188 | { |
| 189 | // Is file readable ? |
| 190 | // require_once 'Zend/Loader.php'; |
| 191 | if (!Zend_Loader::isReadable($value)) { |
| 192 | return $this->_throw($file, self::NOT_FOUND); |
| 193 | } |
| 194 | |
| 195 | if ($file !== null) { |
| 196 | $info['extension'] = substr($file['name'], strrpos($file['name'], '.') + 1); |
| 197 | } else { |
| 198 | $info = pathinfo($value); |
| 199 | } |
| 200 | |
| 201 | $extensions = $this->getExtension(); |
| 202 | |
| 203 | if ($this->_case && (in_array($info['extension'], $extensions))) { |
| 204 | return true; |
| 205 | } else if (!$this->getCase()) { |
| 206 | foreach ($extensions as $extension) { |
| 207 | if (strtolower($extension) == strtolower($info['extension'])) { |
| 208 | return true; |
| 209 | } |
| 210 | } |
| 211 | } |
| 212 | |
| 213 | return $this->_throw($file, self::FALSE_EXTENSION); |
| 214 | } |
| 215 | |
| 216 | /** |
| 217 | * Throws an error of the given type |
| 218 | * |
| 219 | * @param string $file |
| 220 | * @param string $errorType |
| 221 | * @return false |
| 222 | */ |
| 223 | protected function _throw($file, $errorType) |
| 224 | { |
| 225 | if (null !== $file) { |
| 226 | $this->_value = $file['name']; |
| 227 | } |
| 228 | |
| 229 | $this->_error($errorType); |
| 230 | return false; |
| 231 | } |
| 232 | } |
| 233 |