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Diffstat (limited to 'lib/Zend/Validate/File/IsImage.php')
| -rw-r--r-- | lib/Zend/Validate/File/IsImage.php | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/lib/Zend/Validate/File/IsImage.php b/lib/Zend/Validate/File/IsImage.php new file mode 100644 index 0000000..045c7fe --- /dev/null +++ b/lib/Zend/Validate/File/IsImage.php @@ -0,0 +1,137 @@ +<?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) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com) + * @license http://framework.zend.com/license/new-bsd New BSD License + * @version $Id: $ + */ + +/** + * @see Zend_Validate_File_MimeType + */ +require_once 'Zend/Validate/File/MimeType.php'; + +/** + * Validator which checks if the file already exists in the directory + * + * @category Zend + * @package Zend_Validate + * @copyright Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com) + * @license http://framework.zend.com/license/new-bsd New BSD License + */ +class Zend_Validate_File_IsImage extends Zend_Validate_File_MimeType +{ + /** + * @const string Error constants + */ + const FALSE_TYPE = 'fileIsImageFalseType'; + const NOT_DETECTED = 'fileIsImageNotDetected'; + const NOT_READABLE = 'fileIsImageNotReadable'; + + /** + * @var array Error message templates + */ + protected $_messageTemplates = array( + self::FALSE_TYPE => "The file '%value%' is no image, '%type%' detected", + self::NOT_DETECTED => "The mimetype of file '%value%' has not been detected", + self::NOT_READABLE => "The file '%value%' can not be read" + ); + + /** + * Sets validator options + * + * @param string|array $mimetype + * @return void + */ + public function __construct($mimetype = array()) + { + if (empty($mimetype)) { + $mimetype = array( + 'image/x-quicktime', + 'image/jp2', + 'image/x-xpmi', + 'image/x-portable-bitmap', + 'image/x-portable-greymap', + 'image/x-portable-pixmap', + 'image/x-niff', + 'image/tiff', + 'image/png', + 'image/x-unknown', + 'image/gif', + 'image/x-ms-bmp', + 'application/dicom', + 'image/vnd.adobe.photoshop', + 'image/vnd.djvu', + 'image/x-cpi', + 'image/jpeg', + 'image/x-ico', + 'image/x-coreldraw', + 'image/svg+xml' + ); + } + + $this->setMimeType($mimetype); + } + + /** + * Defined by Zend_Validate_Interface + * + * Returns true if and only if the file is compression with the set compression types + * + * @param string $value Real file to check for compression + * @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); + } + + if ($file !== null) { + if (class_exists('finfo', false) && defined('MAGIC')) { + $mime = new finfo(FILEINFO_MIME); + $this->_type = $mime->file($value); + unset($mime); + } elseif (function_exists('mime_content_type') && ini_get('mime_magic.magicfile')) { + $this->_type = mime_content_type($value); + } else { + $this->_type = $file['type']; + } + } + + if (empty($this->_type)) { + return $this->_throw($file, self::NOT_DETECTED); + } + + $compressions = $this->getMimeType(true); + if (in_array($this->_type, $compressions)) { + return true; + } + + $types = explode('/', $this->_type); + $types = array_merge($types, explode('-', $this->_type)); + foreach($compressions as $mime) { + if (in_array($mime, $types)) { + return true; + } + } + + return $this->_throw($file, self::FALSE_TYPE); + } +} |