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authordavehauenstein <davehauenstein@d4e419ec-0920-11de-bbfd-a7c1bc4c261e>2009-04-15 22:06:42 +0000
committerdavehauenstein <davehauenstein@d4e419ec-0920-11de-bbfd-a7c1bc4c261e>2009-04-15 22:06:42 +0000
commitc53d8d026021f97075fb2f4940ba22793c38fb6e (patch)
treec5d7865bc0fd226ecc7525d7de8a1d0b0c5c89fd /lib/Zend/Validate/File/IsImage.php
parenta414fcee8e7dc733443c6a971162d0dd9d0e723f (diff)
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+<?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);
+ }
+}