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) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)

    18  * @license   http://framework.zend.com/license/new-bsd     New BSD License

    19  * @version   $Id: Exists.php 20352 2010-01-17 17:55:38Z thomas $

    20  */

    21 

    22 /**

    23  * @see Zend_Validate_Abstract

    24  */

    25 require_once 'Zend/Validate/Abstract.php';

    26 

    27 /**

    28  * Validator which checks if the file already exists in the directory

    29  *

    30  * @category  Zend

    31  * @package   Zend_Validate

    32  * @copyright  Copyright (c) 2005-2010 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_Exists extends Zend_Validate_Abstract

    36 {

    37     /**

    38      * @const string Error constants

    39      */

    40     const DOES_NOT_EXIST = 'fileExistsDoesNotExist';

    41 

    42     /**

    43      * @var array Error message templates

    44      */

    45     protected $_messageTemplates = array(

    46         self::DOES_NOT_EXIST => "File '%value%' does not exist",

    47     );

    48 

    49     /**

    50      * Internal list of directories

    51      * @var string

    52      */

    53     protected $_directory = '';

    54 

    55     /**

    56      * @var array Error message template variables

    57      */

    58     protected $_messageVariables = array(

    59         'directory' => '_directory'

    60     );

    61 

    62     /**

    63      * Sets validator options

    64      *

    65      * @param  string|array|Zend_Config $directory

    66      * @return void

    67      */

    68     public function __construct($directory = array())

    69     {

    70         if ($directory instanceof Zend_Config) {

    71             $directory = $directory->toArray();

    72         } else if (is_string($directory)) {

    73             $directory = explode(',', $directory);

    74         } else if (!is_array($directory)) {

    75             require_once 'Zend/Validate/Exception.php';

    76             throw new Zend_Validate_Exception ('Invalid options to validator provided');

    77         }

    78 

    79         $this->setDirectory($directory);

    80     }

    81 

    82     /**

    83      * Returns the set file directories which are checked

    84      *

    85      * @param  boolean $asArray Returns the values as array, when false an concated string is returned

    86      * @return string

    87      */

    88     public function getDirectory($asArray = false)

    89     {

    90         $asArray   = (bool) $asArray;

    91         $directory = (string) $this->_directory;

    92         if ($asArray) {

    93             $directory = explode(',', $directory);

    94         }

    95 

    96         return $directory;

    97     }

    98 

    99     /**

   100      * Sets the file directory which will be checked

   101      *

   102      * @param  string|array $directory The directories to validate

   103      * @return Zend_Validate_File_Extension Provides a fluent interface

   104      */

   105     public function setDirectory($directory)

   106     {

   107         $this->_directory = null;

   108         $this->addDirectory($directory);

   109         return $this;

   110     }

   111 

   112     /**

   113      * Adds the file directory which will be checked

   114      *

   115      * @param  string|array $directory The directory to add for validation

   116      * @return Zend_Validate_File_Extension Provides a fluent interface

   117      */

   118     public function addDirectory($directory)

   119     {

   120         $directories = $this->getDirectory(true);

   121 

   122         if (is_string($directory)) {

   123             $directory = explode(',', $directory);

   124         } else if (!is_array($directory)) {

   125             require_once 'Zend/Validate/Exception.php';

   126             throw new Zend_Validate_Exception ('Invalid options to validator provided');

   127         }

   128 

   129         foreach ($directory as $content) {

   130             if (empty($content) || !is_string($content)) {

   131                 continue;

   132             }

   133 

   134             $directories[] = trim($content);

   135         }

   136         $directories = array_unique($directories);

   137 

   138         // Sanity check to ensure no empty values

   139         foreach ($directories as $key => $dir) {

   140             if (empty($dir)) {

   141                 unset($directories[$key]);

   142             }

   143         }

   144 

   145         $this->_directory = implode(',', $directories);

   146 

   147         return $this;

   148     }

   149 

   150     /**

   151      * Defined by Zend_Validate_Interface

   152      *

   153      * Returns true if and only if the file already exists in the set directories

   154      *

   155      * @param  string  $value Real file to check for existance

   156      * @param  array   $file  File data from Zend_File_Transfer

   157      * @return boolean

   158      */

   159     public function isValid($value, $file = null)

   160     {

   161         $directories = $this->getDirectory(true);

   162         if (($file !== null) and (!empty($file['destination']))) {

   163             $directories[] = $file['destination'];

   164         } else if (!isset($file['name'])) {

   165             $file['name'] = $value;

   166         }

   167 

   168         $check = false;

   169         foreach ($directories as $directory) {

   170             if (empty($directory)) {

   171                 continue;

   172             }

   173 

   174             $check = true;

   175             if (!file_exists($directory . DIRECTORY_SEPARATOR . $file['name'])) {

   176                 return $this->_throw($file, self::DOES_NOT_EXIST);

   177             }

   178         }

   179 

   180         if (!$check) {

   181             return $this->_throw($file, self::DOES_NOT_EXIST);

   182         }

   183 

   184         return true;

   185     }

   186 

   187     /**

   188      * Throws an error of the given type

   189      *

   190      * @param  string $file

   191      * @param  string $errorType

   192      * @return false

   193      */

   194     protected function _throw($file, $errorType)

   195     {

   196         if ($file !== null) {

   197             $this->_value = $file['name'];

   198         }

   199 

   200         $this->_error($errorType);

   201         return false;

   202     }

   203 }