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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/Extension.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_Abstract
+ */
+require_once 'Zend/Validate/Abstract.php';
+
+/**
+ * Validator for the file extension of a file
+ *
+ * @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_Extension extends Zend_Validate_Abstract
+{
+ /**
+ * @const string Error constants
+ */
+ const FALSE_EXTENSION = 'fileExtensionFalse';
+ const NOT_FOUND = 'fileExtensionNotFound';
+
+ /**
+ * @var array Error message templates
+ */
+ protected $_messageTemplates = array(
+ self::FALSE_EXTENSION => "The file '%value%' has a false extension",
+ self::NOT_FOUND => "The file '%value%' was not found"
+ );
+
+ /**
+ * Internal list of extensions
+ * @var string
+ */
+ protected $_extension = '';
+
+ /**
+ * Validate case sensitive
+ *
+ * @var boolean
+ */
+ protected $_case = false;
+
+ /**
+ * @var array Error message template variables
+ */
+ protected $_messageVariables = array(
+ 'extension' => '_extension'
+ );
+
+ /**
+ * Sets validator options
+ *
+ * @param string|array $extension
+ * @param boolean $case If true validation is done case sensitive
+ * @return void
+ */
+ public function __construct($options)
+ {
+ if ($options instanceof Zend_Config) {
+ $options = $options->toArray();
+ }
+
+ if (1 < func_num_args()) {
+ trigger_error('Multiple arguments to constructor are deprecated in favor of options array', E_USER_NOTICE);
+ $case = func_get_arg(1);
+ $this->setCase($case);
+ }
+
+ if (is_array($options) and isset($options['case'])) {
+ $this->setCase($options['case']);
+ unset($options['case']);
+ }
+
+ $this->setExtension($options);
+ }
+
+ /**
+ * Returns the case option
+ *
+ * @return boolean
+ */
+ public function getCase()
+ {
+ return $this->_case;
+ }
+
+ /**
+ * Sets the case to use
+ *
+ * @param boolean $case
+ * @return Zend_Validate_File_Extension Provides a fluent interface
+ */
+ public function setCase($case)
+ {
+ $this->_case = (boolean) $case;
+ return $this;
+ }
+
+ /**
+ * Returns the set file extension
+ *
+ * @return array
+ */
+ public function getExtension()
+ {
+ $extension = explode(',', $this->_extension);
+
+ return $extension;
+ }
+
+ /**
+ * Sets the file extensions
+ *
+ * @param string|array $extension The extensions to validate
+ * @return Zend_Validate_File_Extension Provides a fluent interface
+ */
+ public function setExtension($extension)
+ {
+ $this->_extension = null;
+ $this->addExtension($extension);
+ return $this;
+ }
+
+ /**
+ * Adds the file extensions
+ *
+ * @param string|array $extension The extensions to add for validation
+ * @return Zend_Validate_File_Extension Provides a fluent interface
+ */
+ public function addExtension($extension)
+ {
+ $extensions = $this->getExtension();
+ if (is_string($extension)) {
+ $extension = explode(',', $extension);
+ }
+
+ foreach ($extension as $content) {
+ if (empty($content) || !is_string($content)) {
+ continue;
+ }
+
+ $extensions[] = trim($content);
+ }
+ $extensions = array_unique($extensions);
+
+ // Sanity check to ensure no empty values
+ foreach ($extensions as $key => $ext) {
+ if (empty($ext)) {
+ unset($extensions[$key]);
+ }
+ }
+
+ $this->_extension = implode(',', $extensions);
+
+ return $this;
+ }
+
+ /**
+ * Defined by Zend_Validate_Interface
+ *
+ * Returns true if and only if the fileextension of $value is included in the
+ * set extension list
+ *
+ * @param string $value Real file to check for extension
+ * @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_FOUND);
+ }
+
+ if ($file !== null) {
+ $info['extension'] = substr($file['name'], strrpos($file['name'], '.') + 1);
+ } else {
+ $info = pathinfo($value);
+ }
+
+ $extensions = $this->getExtension();
+
+ if ($this->_case && (in_array($info['extension'], $extensions))) {
+ return true;
+ } else if (!$this->getCase()) {
+ foreach ($extensions as $extension) {
+ if (strtolower($extension) == strtolower($info['extension'])) {
+ return true;
+ }
+ }
+ }
+
+ return $this->_throw($file, self::FALSE_EXTENSION);
+ }
+
+ /**
+ * Throws an error of the given type
+ *
+ * @param string $file
+ * @param string $errorType
+ * @return false
+ */
+ protected function _throw($file, $errorType)
+ {
+ if (null !== $file) {
+ $this->_value = $file['name'];
+ }
+
+ $this->_error($errorType);
+ return false;
+ }
+}