summaryrefslogtreecommitdiff
path: root/lib/Zend/Validate/File/Exists.php
blob: cf509aaa60db0d221363201419625e844c8030e9 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
<?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 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_Exists extends Zend_Validate_Abstract
{
    /**
     * @const string Error constants
     */
    const DOES_NOT_EXIST = 'fileExistsDoesNotExist';

    /**
     * @var array Error message templates
     */
    protected $_messageTemplates = array(
        self::DOES_NOT_EXIST => "The file '%value%' does not exist"
    );

    /**
     * Internal list of directories
     * @var string
     */
    protected $_directory = '';

    /**
     * @var array Error message template variables
     */
    protected $_messageVariables = array(
        'directory' => '_directory'
    );

    /**
     * Sets validator options
     *
     * @param  string|array $directory
     * @return void
     */
    public function __construct($directory = array())
    {
        if ($directory instanceof Zend_Config) {
            $directory = $directory->toArray();
        } else if (is_string($directory)) {
            $directory = explode(',', $directory);
        } else if (!is_array($directory)) {
            require_once 'Zend/Validate/Exception.php';
            throw new Zend_Validate_Exception ('Invalid options to validator provided');
        }

        $this->setDirectory($directory);
    }

    /**
     * Returns the set file directories which are checked
     *
     * @param  boolean $asArray Returns the values as array, when false an concated string is returned
     * @return string
     */
    public function getDirectory($asArray = false)
    {
        $asArray   = (bool) $asArray;
        $directory = (string) $this->_directory;
        if ($asArray) {
            $directory = explode(',', $directory);
        }

        return $directory;
    }

    /**
     * Sets the file directory which will be checked
     *
     * @param  string|array $directory The directories to validate
     * @return Zend_Validate_File_Extension Provides a fluent interface
     */
    public function setDirectory($directory)
    {
        $this->_directory = null;
        $this->addDirectory($directory);
        return $this;
    }

    /**
     * Adds the file directory which will be checked
     *
     * @param  string|array $directory The directory to add for validation
     * @return Zend_Validate_File_Extension Provides a fluent interface
     */
    public function addDirectory($directory)
    {
        $directories = $this->getDirectory(true);

        if (is_string($directory)) {
            $directory = explode(',', $directory);
        } else if (!is_array($directory)) {
            require_once 'Zend/Validate/Exception.php';
            throw new Zend_Validate_Exception ('Invalid options to validator provided');
        }

        foreach ($directory as $content) {
            if (empty($content) || !is_string($content)) {
                continue;
            }

            $directories[] = trim($content);
        }
        $directories = array_unique($directories);

        // Sanity check to ensure no empty values
        foreach ($directories as $key => $dir) {
            if (empty($dir)) {
                unset($directories[$key]);
            }
        }

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

        return $this;
    }

    /**
     * Defined by Zend_Validate_Interface
     *
     * Returns true if and only if the file already exists in the set directories
     *
     * @param  string  $value Real file to check for existance
     * @param  array   $file  File data from Zend_File_Transfer
     * @return boolean
     */
    public function isValid($value, $file = null)
    {
        $directories = $this->getDirectory(true);
        if (($file !== null) and (!empty($file['destination']))) {
            $directories[] = $file['destination'];
        } else if (!isset($file['name'])) {
            $file['name'] = $value;
        }

        $check = false;
        foreach ($directories as $directory) {
            if (empty($directory)) {
                continue;
            }

            $check = true;
            if (!file_exists($directory . DIRECTORY_SEPARATOR . $file['name'])) {
                return $this->_throw($file, self::DOES_NOT_EXIST);
            }
        }

        if (!$check) {
            return $this->_throw($file, self::DOES_NOT_EXIST);
        }

        return true;
    }

    /**
     * Throws an error of the given type
     *
     * @param  string $file
     * @param  string $errorType
     * @return false
     */
    protected function _throw($file, $errorType)
    {
        if ($file !== null) {
            $this->_value = $file['name'];
        }

        $this->_error($errorType);
        return false;
    }
}