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Exists.php

204 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: Exists.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 which checks if the file already exists in the directory
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_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	}
204