Mercurial > hg > cmmr2012-drupal-site
comparison vendor/symfony/http-foundation/File/UploadedFile.php @ 0:c75dbcec494b
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author | Chris Cannam |
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date | Thu, 05 Jul 2018 14:24:15 +0000 |
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children | a9cd425dd02b |
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1 <?php | |
2 | |
3 /* | |
4 * This file is part of the Symfony package. | |
5 * | |
6 * (c) Fabien Potencier <fabien@symfony.com> | |
7 * | |
8 * For the full copyright and license information, please view the LICENSE | |
9 * file that was distributed with this source code. | |
10 */ | |
11 | |
12 namespace Symfony\Component\HttpFoundation\File; | |
13 | |
14 use Symfony\Component\HttpFoundation\File\Exception\FileException; | |
15 use Symfony\Component\HttpFoundation\File\Exception\FileNotFoundException; | |
16 use Symfony\Component\HttpFoundation\File\MimeType\ExtensionGuesser; | |
17 | |
18 /** | |
19 * A file uploaded through a form. | |
20 * | |
21 * @author Bernhard Schussek <bschussek@gmail.com> | |
22 * @author Florian Eckerstorfer <florian@eckerstorfer.org> | |
23 * @author Fabien Potencier <fabien@symfony.com> | |
24 */ | |
25 class UploadedFile extends File | |
26 { | |
27 private $test = false; | |
28 private $originalName; | |
29 private $mimeType; | |
30 private $size; | |
31 private $error; | |
32 | |
33 /** | |
34 * Accepts the information of the uploaded file as provided by the PHP global $_FILES. | |
35 * | |
36 * The file object is only created when the uploaded file is valid (i.e. when the | |
37 * isValid() method returns true). Otherwise the only methods that could be called | |
38 * on an UploadedFile instance are: | |
39 * | |
40 * * getClientOriginalName, | |
41 * * getClientMimeType, | |
42 * * isValid, | |
43 * * getError. | |
44 * | |
45 * Calling any other method on an non-valid instance will cause an unpredictable result. | |
46 * | |
47 * @param string $path The full temporary path to the file | |
48 * @param string $originalName The original file name of the uploaded file | |
49 * @param string|null $mimeType The type of the file as provided by PHP; null defaults to application/octet-stream | |
50 * @param int|null $size The file size provided by the uploader | |
51 * @param int|null $error The error constant of the upload (one of PHP's UPLOAD_ERR_XXX constants); null defaults to UPLOAD_ERR_OK | |
52 * @param bool $test Whether the test mode is active | |
53 * Local files are used in test mode hence the code should not enforce HTTP uploads | |
54 * | |
55 * @throws FileException If file_uploads is disabled | |
56 * @throws FileNotFoundException If the file does not exist | |
57 */ | |
58 public function __construct($path, $originalName, $mimeType = null, $size = null, $error = null, $test = false) | |
59 { | |
60 $this->originalName = $this->getName($originalName); | |
61 $this->mimeType = $mimeType ?: 'application/octet-stream'; | |
62 $this->size = $size; | |
63 $this->error = $error ?: UPLOAD_ERR_OK; | |
64 $this->test = (bool) $test; | |
65 | |
66 parent::__construct($path, UPLOAD_ERR_OK === $this->error); | |
67 } | |
68 | |
69 /** | |
70 * Returns the original file name. | |
71 * | |
72 * It is extracted from the request from which the file has been uploaded. | |
73 * Then it should not be considered as a safe value. | |
74 * | |
75 * @return string|null The original name | |
76 */ | |
77 public function getClientOriginalName() | |
78 { | |
79 return $this->originalName; | |
80 } | |
81 | |
82 /** | |
83 * Returns the original file extension. | |
84 * | |
85 * It is extracted from the original file name that was uploaded. | |
86 * Then it should not be considered as a safe value. | |
87 * | |
88 * @return string The extension | |
89 */ | |
90 public function getClientOriginalExtension() | |
91 { | |
92 return pathinfo($this->originalName, PATHINFO_EXTENSION); | |
93 } | |
94 | |
95 /** | |
96 * Returns the file mime type. | |
97 * | |
98 * The client mime type is extracted from the request from which the file | |
99 * was uploaded, so it should not be considered as a safe value. | |
100 * | |
101 * For a trusted mime type, use getMimeType() instead (which guesses the mime | |
102 * type based on the file content). | |
103 * | |
104 * @return string|null The mime type | |
105 * | |
106 * @see getMimeType() | |
107 */ | |
108 public function getClientMimeType() | |
109 { | |
110 return $this->mimeType; | |
111 } | |
112 | |
113 /** | |
114 * Returns the extension based on the client mime type. | |
115 * | |
116 * If the mime type is unknown, returns null. | |
117 * | |
118 * This method uses the mime type as guessed by getClientMimeType() | |
119 * to guess the file extension. As such, the extension returned | |
120 * by this method cannot be trusted. | |
121 * | |
122 * For a trusted extension, use guessExtension() instead (which guesses | |
123 * the extension based on the guessed mime type for the file). | |
124 * | |
125 * @return string|null The guessed extension or null if it cannot be guessed | |
126 * | |
127 * @see guessExtension() | |
128 * @see getClientMimeType() | |
129 */ | |
130 public function guessClientExtension() | |
131 { | |
132 $type = $this->getClientMimeType(); | |
133 $guesser = ExtensionGuesser::getInstance(); | |
134 | |
135 return $guesser->guess($type); | |
136 } | |
137 | |
138 /** | |
139 * Returns the file size. | |
140 * | |
141 * It is extracted from the request from which the file has been uploaded. | |
142 * Then it should not be considered as a safe value. | |
143 * | |
144 * @return int|null The file size | |
145 */ | |
146 public function getClientSize() | |
147 { | |
148 return $this->size; | |
149 } | |
150 | |
151 /** | |
152 * Returns the upload error. | |
153 * | |
154 * If the upload was successful, the constant UPLOAD_ERR_OK is returned. | |
155 * Otherwise one of the other UPLOAD_ERR_XXX constants is returned. | |
156 * | |
157 * @return int The upload error | |
158 */ | |
159 public function getError() | |
160 { | |
161 return $this->error; | |
162 } | |
163 | |
164 /** | |
165 * Returns whether the file was uploaded successfully. | |
166 * | |
167 * @return bool True if the file has been uploaded with HTTP and no error occurred | |
168 */ | |
169 public function isValid() | |
170 { | |
171 $isOk = UPLOAD_ERR_OK === $this->error; | |
172 | |
173 return $this->test ? $isOk : $isOk && is_uploaded_file($this->getPathname()); | |
174 } | |
175 | |
176 /** | |
177 * Moves the file to a new location. | |
178 * | |
179 * @param string $directory The destination folder | |
180 * @param string $name The new file name | |
181 * | |
182 * @return File A File object representing the new file | |
183 * | |
184 * @throws FileException if, for any reason, the file could not have been moved | |
185 */ | |
186 public function move($directory, $name = null) | |
187 { | |
188 if ($this->isValid()) { | |
189 if ($this->test) { | |
190 return parent::move($directory, $name); | |
191 } | |
192 | |
193 $target = $this->getTargetFile($directory, $name); | |
194 | |
195 set_error_handler(function ($type, $msg) use (&$error) { $error = $msg; }); | |
196 $moved = move_uploaded_file($this->getPathname(), $target); | |
197 restore_error_handler(); | |
198 if (!$moved) { | |
199 throw new FileException(sprintf('Could not move the file "%s" to "%s" (%s)', $this->getPathname(), $target, strip_tags($error))); | |
200 } | |
201 | |
202 @chmod($target, 0666 & ~umask()); | |
203 | |
204 return $target; | |
205 } | |
206 | |
207 throw new FileException($this->getErrorMessage()); | |
208 } | |
209 | |
210 /** | |
211 * Returns the maximum size of an uploaded file as configured in php.ini. | |
212 * | |
213 * @return int The maximum size of an uploaded file in bytes | |
214 */ | |
215 public static function getMaxFilesize() | |
216 { | |
217 $iniMax = strtolower(ini_get('upload_max_filesize')); | |
218 | |
219 if ('' === $iniMax) { | |
220 return PHP_INT_MAX; | |
221 } | |
222 | |
223 $max = ltrim($iniMax, '+'); | |
224 if (0 === strpos($max, '0x')) { | |
225 $max = intval($max, 16); | |
226 } elseif (0 === strpos($max, '0')) { | |
227 $max = intval($max, 8); | |
228 } else { | |
229 $max = (int) $max; | |
230 } | |
231 | |
232 switch (substr($iniMax, -1)) { | |
233 case 't': $max *= 1024; | |
234 // no break | |
235 case 'g': $max *= 1024; | |
236 // no break | |
237 case 'm': $max *= 1024; | |
238 // no break | |
239 case 'k': $max *= 1024; | |
240 } | |
241 | |
242 return $max; | |
243 } | |
244 | |
245 /** | |
246 * Returns an informative upload error message. | |
247 * | |
248 * @return string The error message regarding the specified error code | |
249 */ | |
250 public function getErrorMessage() | |
251 { | |
252 static $errors = array( | |
253 UPLOAD_ERR_INI_SIZE => 'The file "%s" exceeds your upload_max_filesize ini directive (limit is %d KiB).', | |
254 UPLOAD_ERR_FORM_SIZE => 'The file "%s" exceeds the upload limit defined in your form.', | |
255 UPLOAD_ERR_PARTIAL => 'The file "%s" was only partially uploaded.', | |
256 UPLOAD_ERR_NO_FILE => 'No file was uploaded.', | |
257 UPLOAD_ERR_CANT_WRITE => 'The file "%s" could not be written on disk.', | |
258 UPLOAD_ERR_NO_TMP_DIR => 'File could not be uploaded: missing temporary directory.', | |
259 UPLOAD_ERR_EXTENSION => 'File upload was stopped by a PHP extension.', | |
260 ); | |
261 | |
262 $errorCode = $this->error; | |
263 $maxFilesize = UPLOAD_ERR_INI_SIZE === $errorCode ? self::getMaxFilesize() / 1024 : 0; | |
264 $message = isset($errors[$errorCode]) ? $errors[$errorCode] : 'The file "%s" was not uploaded due to an unknown error.'; | |
265 | |
266 return sprintf($message, $this->getClientOriginalName(), $maxFilesize); | |
267 } | |
268 } |