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Size.php
405 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: Size.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 maximum size of a file up to a max of 2GB |
| 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_Size extends Zend_Validate_Abstract |
| 36 | { |
| 37 | /**#@+ |
| 38 | * @const string Error constants |
| 39 | */ |
| 40 | const TOO_BIG = 'fileSizeTooBig'; |
| 41 | const TOO_SMALL = 'fileSizeTooSmall'; |
| 42 | const NOT_FOUND = 'fileSizeNotFound'; |
| 43 | /**#@-*/ |
| 44 | |
| 45 | /** |
| 46 | * @var array Error message templates |
| 47 | */ |
| 48 | protected $_messageTemplates = array( |
| 49 | self::TOO_BIG => "Maximum allowed size for file '%value%' is '%max%' but '%size%' detected", |
| 50 | self::TOO_SMALL => "Minimum expected size for file '%value%' is '%min%' but '%size%' detected", |
| 51 | self::NOT_FOUND => "File '%value%' is not readable or does not exist", |
| 52 | ); |
| 53 | |
| 54 | /** |
| 55 | * @var array Error message template variables |
| 56 | */ |
| 57 | protected $_messageVariables = array( |
| 58 | 'min' => '_min', |
| 59 | 'max' => '_max', |
| 60 | 'size' => '_size', |
| 61 | ); |
| 62 | |
| 63 | /** |
| 64 | * Minimum filesize |
| 65 | * @var integer |
| 66 | */ |
| 67 | protected $_min; |
| 68 | |
| 69 | /** |
| 70 | * Maximum filesize |
| 71 | * |
| 72 | * If null, there is no maximum filesize |
| 73 | * |
| 74 | * @var integer|null |
| 75 | */ |
| 76 | protected $_max; |
| 77 | |
| 78 | /** |
| 79 | * Detected size |
| 80 | * |
| 81 | * @var integer |
| 82 | */ |
| 83 | protected $_size; |
| 84 | |
| 85 | /** |
| 86 | * Use bytestring ? |
| 87 | * |
| 88 | * @var boolean |
| 89 | */ |
| 90 | protected $_useByteString = true; |
| 91 | |
| 92 | /** |
| 93 | * Sets validator options |
| 94 | * |
| 95 | * If $options is a integer, it will be used as maximum filesize |
| 96 | * As Array is accepts the following keys: |
| 97 | * 'min': Minimum filesize |
| 98 | * 'max': Maximum filesize |
| 99 | * 'bytestring': Use bytestring or real size for messages |
| 100 | * |
| 101 | * @param integer|array $options Options for the adapter |
| 102 | */ |
| 103 | public function __construct($options) |
| 104 | { |
| 105 | if ($options instanceof Zend_Config) { |
| 106 | $options = $options->toArray(); |
| 107 | } elseif (is_string($options) || is_numeric($options)) { |
| 108 | $options = array('max' => $options); |
| 109 | } elseif (!is_array($options)) { |
| 110 | // require_once 'Zend/Validate/Exception.php'; |
| 111 | throw new Zend_Validate_Exception ('Invalid options to validator provided'); |
| 112 | } |
| 113 | |
| 114 | if (1 < func_num_args()) { |
| 115 | $argv = func_get_args(); |
| 116 | array_shift($argv); |
| 117 | $options['max'] = array_shift($argv); |
| 118 | if (!empty($argv)) { |
| 119 | $options['bytestring'] = array_shift($argv); |
| 120 | } |
| 121 | } |
| 122 | |
| 123 | if (isset($options['bytestring'])) { |
| 124 | $this->setUseByteString($options['bytestring']); |
| 125 | } |
| 126 | |
| 127 | if (isset($options['min'])) { |
| 128 | $this->setMin($options['min']); |
| 129 | } |
| 130 | |
| 131 | if (isset($options['max'])) { |
| 132 | $this->setMax($options['max']); |
| 133 | } |
| 134 | } |
| 135 | |
| 136 | /** |
| 137 | * Returns the minimum filesize |
| 138 | * |
| 139 | * @param boolean $byteString Use bytestring ? |
| 140 | * @return integer |
| 141 | */ |
| 142 | public function setUseByteString($byteString = true) |
| 143 | { |
| 144 | $this->_useByteString = (bool) $byteString; |
| 145 | return $this; |
| 146 | } |
| 147 | |
| 148 | /** |
| 149 | * Will bytestring be used? |
| 150 | * |
| 151 | * @return boolean |
| 152 | */ |
| 153 | public function useByteString() |
| 154 | { |
| 155 | return $this->_useByteString; |
| 156 | } |
| 157 | |
| 158 | /** |
| 159 | * Returns the minimum filesize |
| 160 | * |
| 161 | * @param bool $raw Whether or not to force return of the raw value (defaults off) |
| 162 | * @return integer|string |
| 163 | */ |
| 164 | public function getMin($raw = false) |
| 165 | { |
| 166 | $min = $this->_min; |
| 167 | if (!$raw && $this->useByteString()) { |
| 168 | $min = $this->_toByteString($min); |
| 169 | } |
| 170 | |
| 171 | return $min; |
| 172 | } |
| 173 | |
| 174 | /** |
| 175 | * Sets the minimum filesize |
| 176 | * |
| 177 | * @param integer $min The minimum filesize |
| 178 | * @throws Zend_Validate_Exception When min is greater than max |
| 179 | * @return Zend_Validate_File_Size Provides a fluent interface |
| 180 | */ |
| 181 | public function setMin($min) |
| 182 | { |
| 183 | if (!is_string($min) and !is_numeric($min)) { |
| 184 | // require_once 'Zend/Validate/Exception.php'; |
| 185 | throw new Zend_Validate_Exception ('Invalid options to validator provided'); |
| 186 | } |
| 187 | |
| 188 | $min = (integer) $this->_fromByteString($min); |
| 189 | $max = $this->getMax(true); |
| 190 | if (($max !== null) && ($min > $max)) { |
| 191 | // require_once 'Zend/Validate/Exception.php'; |
| 192 | throw new Zend_Validate_Exception("The minimum must be less than or equal to the maximum filesize, but $min >" |
| 193 | . " $max"); |
| 194 | } |
| 195 | |
| 196 | $this->_min = $min; |
| 197 | return $this; |
| 198 | } |
| 199 | |
| 200 | /** |
| 201 | * Returns the maximum filesize |
| 202 | * |
| 203 | * @param bool $raw Whether or not to force return of the raw value (defaults off) |
| 204 | * @return integer|string |
| 205 | */ |
| 206 | public function getMax($raw = false) |
| 207 | { |
| 208 | $max = $this->_max; |
| 209 | if (!$raw && $this->useByteString()) { |
| 210 | $max = $this->_toByteString($max); |
| 211 | } |
| 212 | |
| 213 | return $max; |
| 214 | } |
| 215 | |
| 216 | /** |
| 217 | * Sets the maximum filesize |
| 218 | * |
| 219 | * @param integer $max The maximum filesize |
| 220 | * @throws Zend_Validate_Exception When max is smaller than min |
| 221 | * @return Zend_Validate_StringLength Provides a fluent interface |
| 222 | */ |
| 223 | public function setMax($max) |
| 224 | { |
| 225 | if (!is_string($max) && !is_numeric($max)) { |
| 226 | // require_once 'Zend/Validate/Exception.php'; |
| 227 | throw new Zend_Validate_Exception ('Invalid options to validator provided'); |
| 228 | } |
| 229 | |
| 230 | $max = (integer) $this->_fromByteString($max); |
| 231 | $min = $this->getMin(true); |
| 232 | if (($min !== null) && ($max < $min)) { |
| 233 | // require_once 'Zend/Validate/Exception.php'; |
| 234 | throw new Zend_Validate_Exception("The maximum must be greater than or equal to the minimum filesize, but " |
| 235 | . "$max < $min"); |
| 236 | } |
| 237 | |
| 238 | $this->_max = $max; |
| 239 | return $this; |
| 240 | } |
| 241 | |
| 242 | /** |
| 243 | * Retrieve current detected file size |
| 244 | * |
| 245 | * @return int |
| 246 | */ |
| 247 | protected function _getSize() |
| 248 | { |
| 249 | return $this->_size; |
| 250 | } |
| 251 | |
| 252 | /** |
| 253 | * Set current size |
| 254 | * |
| 255 | * @param int $size |
| 256 | * @return Zend_Validate_File_Size |
| 257 | */ |
| 258 | protected function _setSize($size) |
| 259 | { |
| 260 | $this->_size = $size; |
| 261 | return $this; |
| 262 | } |
| 263 | |
| 264 | /** |
| 265 | * Defined by Zend_Validate_Interface |
| 266 | * |
| 267 | * Returns true if and only if the filesize of $value is at least min and |
| 268 | * not bigger than max (when max is not null). |
| 269 | * |
| 270 | * @param string $value Real file to check for size |
| 271 | * @param array $file File data from Zend_File_Transfer |
| 272 | * @return boolean |
| 273 | */ |
| 274 | public function isValid($value, $file = null) |
| 275 | { |
| 276 | // Is file readable ? |
| 277 | // require_once 'Zend/Loader.php'; |
| 278 | if (!Zend_Loader::isReadable($value)) { |
| 279 | return $this->_throw($file, self::NOT_FOUND); |
| 280 | } |
| 281 | |
| 282 | // limited to 4GB files |
| 283 | $size = sprintf("%u", @filesize($value)); |
| 284 | $this->_size = $size; |
| 285 | |
| 286 | // Check to see if it's smaller than min size |
| 287 | $min = $this->getMin(true); |
| 288 | $max = $this->getMax(true); |
| 289 | if (($min !== null) && ($size < $min)) { |
| 290 | if ($this->useByteString()) { |
| 291 | $this->_min = $this->_toByteString($min); |
| 292 | $this->_size = $this->_toByteString($size); |
| 293 | $this->_throw($file, self::TOO_SMALL); |
| 294 | $this->_min = $min; |
| 295 | $this->_size = $size; |
| 296 | } else { |
| 297 | $this->_throw($file, self::TOO_SMALL); |
| 298 | } |
| 299 | } |
| 300 | |
| 301 | // Check to see if it's larger than max size |
| 302 | if (($max !== null) && ($max < $size)) { |
| 303 | if ($this->useByteString()) { |
| 304 | $this->_max = $this->_toByteString($max); |
| 305 | $this->_size = $this->_toByteString($size); |
| 306 | $this->_throw($file, self::TOO_BIG); |
| 307 | $this->_max = $max; |
| 308 | $this->_size = $size; |
| 309 | } else { |
| 310 | $this->_throw($file, self::TOO_BIG); |
| 311 | } |
| 312 | } |
| 313 | |
| 314 | if (count($this->_messages) > 0) { |
| 315 | return false; |
| 316 | } |
| 317 | |
| 318 | return true; |
| 319 | } |
| 320 | |
| 321 | /** |
| 322 | * Returns the formatted size |
| 323 | * |
| 324 | * @param integer $size |
| 325 | * @return string |
| 326 | */ |
| 327 | protected function _toByteString($size) |
| 328 | { |
| 329 | $sizes = array('B', 'kB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB'); |
| 330 | for ($i=0; $size >= 1024 && $i < 9; $i++) { |
| 331 | $size /= 1024; |
| 332 | } |
| 333 | |
| 334 | return round($size, 2) . $sizes[$i]; |
| 335 | } |
| 336 | |
| 337 | /** |
| 338 | * Returns the unformatted size |
| 339 | * |
| 340 | * @param string $size |
| 341 | * @return integer |
| 342 | */ |
| 343 | protected function _fromByteString($size) |
| 344 | { |
| 345 | if (is_numeric($size)) { |
| 346 | return (integer) $size; |
| 347 | } |
| 348 | |
| 349 | $type = trim(substr($size, -2, 1)); |
| 350 | |
| 351 | $value = substr($size, 0, -1); |
| 352 | if (!is_numeric($value)) { |
| 353 | $value = substr($value, 0, -1); |
| 354 | } |
| 355 | |
| 356 | switch (strtoupper($type)) { |
| 357 | case 'Y': |
| 358 | $value *= (1024 * 1024 * 1024 * 1024 * 1024 * 1024 * 1024 * 1024); |
| 359 | break; |
| 360 | case 'Z': |
| 361 | $value *= (1024 * 1024 * 1024 * 1024 * 1024 * 1024 * 1024); |
| 362 | break; |
| 363 | case 'E': |
| 364 | $value *= (1024 * 1024 * 1024 * 1024 * 1024 * 1024); |
| 365 | break; |
| 366 | case 'P': |
| 367 | $value *= (1024 * 1024 * 1024 * 1024 * 1024); |
| 368 | break; |
| 369 | case 'T': |
| 370 | $value *= (1024 * 1024 * 1024 * 1024); |
| 371 | break; |
| 372 | case 'G': |
| 373 | $value *= (1024 * 1024 * 1024); |
| 374 | break; |
| 375 | case 'M': |
| 376 | $value *= (1024 * 1024); |
| 377 | break; |
| 378 | case 'K': |
| 379 | $value *= 1024; |
| 380 | break; |
| 381 | default: |
| 382 | break; |
| 383 | } |
| 384 | |
| 385 | return $value; |
| 386 | } |
| 387 | |
| 388 | /** |
| 389 | * Throws an error of the given type |
| 390 | * |
| 391 | * @param string $file |
| 392 | * @param string $errorType |
| 393 | * @return false |
| 394 | */ |
| 395 | protected function _throw($file, $errorType) |
| 396 | { |
| 397 | if ($file !== null) { |
| 398 | $this->_value = $file['name']; |
| 399 | } |
| 400 | |
| 401 | $this->_error($errorType); |
| 402 | return false; |
| 403 | } |
| 404 | } |
| 405 |