← All changes
|
jetpack_vendor/automattic/jetpack-backup-helper-script-manager/src/class-throw-on-errors.php
+498
-0
16.2-beta
→
16.3
View file →
| @@ -1,0 +1,498 @@ | ||
| 1 | +<?php // phpcs:disable Squiz.Commenting.FileComment.Missing | |
| 2 | + | |
| 3 | +// phpcs:disable WordPress.PHP.DevelopmentFunctions.prevent_path_disclosure_error_reporting | |
| 4 | +// phpcs:disable WordPress.PHP.DiscouragedPHPFunctions.runtime_configuration_error_reporting | |
| 5 | +// phpcs:disable WordPress.PHP.IniSet.display_errors_Disallowed | |
| 6 | + | |
| 7 | +// After changing this file, consider increasing the version number ("VXXX") in all the files using this namespace, in | |
| 8 | +// order to ensure that the specific version of this file always get loaded. Otherwise, Jetpack autoloader might decide | |
| 9 | +// to load an older/newer version of the class (if, for example, both the standalone and bundled versions of the plugin | |
| 10 | +// are installed, or in some other cases). | |
| 11 | +namespace Automattic\Jetpack\Backup\V0005; | |
| 12 | + | |
| 13 | +use Exception; | |
| 14 | +use Throwable; | |
| 15 | + | |
| 16 | +/** | |
| 17 | + * Wrappers for functions which throw an exception on errors and warnings instead of silently continuing operation. | |
| 18 | + * | |
| 19 | + * PHP is pretty lax with error reporting when doing I/O operations, e.g. a typical I/O helper function returns false, | |
| 20 | + * null, and/or emits a warning, but the whole PHP application continues operation. It's for the caller of the I/O | |
| 21 | + * helper function to test the returned result of the function, and notice + act upon I/O errors. | |
| 22 | + * | |
| 23 | + * We really want to know about each and every I/O error. Therefore, this class provides wrappers for some common | |
| 24 | + * (mostly) I/O operations that throw an exception on errors instead of just returning false, null, or something else. | |
| 25 | + * This wrapper class treats warnings as errors too. | |
| 26 | + * | |
| 27 | + * Given that static method names are similar to the ones used by PHP, they're prefixed with "t_" to not erroneously | |
| 28 | + * trigger various security scanners. | |
| 29 | + */ | |
| 30 | +class Throw_On_Errors { | |
| 31 | + | |
| 32 | + /** | |
| 33 | + * Execute a callable, throw an exception (together with a descriptive label) on PHP warnings / errors. | |
| 34 | + * | |
| 35 | + * @param callable $callable Callable to execute. | |
| 36 | + * @param string $label Label to add to the thrown exception to clarify what was attempted. | |
| 37 | + * | |
| 38 | + * @return mixed Callable's return value, if any. | |
| 39 | + * @throws Exception On warnings thrown by the callable. | |
| 40 | + * @noinspection PhpUnusedParameterInspection | |
| 41 | + */ | |
| 42 | + private static function throw_on_warnings( $callable, $label ) { | |
| 43 | + $old_error_reporting = error_reporting( - 1 ); | |
| 44 | + $old_display_errors = ini_set( 'display_errors', 'stderr' ); | |
| 45 | + | |
| 46 | + // phpcs:ignore WordPress.PHP.DevelopmentFunctions.error_log_set_error_handler | |
| 47 | + set_error_handler( | |
| 48 | + /** | |
| 49 | + * Temporary error handler. | |
| 50 | + * | |
| 51 | + * @see https://php-legacy-docs.zend.com/manual/php5/en/function.set-error-handler | |
| 52 | + * @see https://www.php.net/manual/en/function.set-error-handler.php | |
| 53 | + * | |
| 54 | + * @param int $errno Level of the error raised. | |
| 55 | + * @param string $errstr Error message. | |
| 56 | + * @param string|null $errfile Filename that the error was raised in. | |
| 57 | + * @param int|null $errline Line number where the error was raised. | |
| 58 | + * @param array|null $errcontext Deprecated, unused. | |
| 59 | + * | |
| 60 | + * @return never | |
| 61 | + * @throws Exception | |
| 62 | + */ | |
| 63 | + // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable | |
| 64 | + function ( $errno, $errstr, $errfile = null, $errline = null, $errcontext = null ) { | |
| 65 | + throw new Exception( "$errstr (file: $errfile; line: $errline)" ); | |
| 66 | + } | |
| 67 | + ); | |
| 68 | + | |
| 69 | + $result = null; | |
| 70 | + $error_message = null; | |
| 71 | + try { | |
| 72 | + $result = $callable(); | |
| 73 | + } catch ( Throwable $throwable ) { | |
| 74 | + $error_message = $throwable->getMessage(); | |
| 75 | + } | |
| 76 | + | |
| 77 | + restore_error_handler(); | |
| 78 | + ini_set( 'display_errors', $old_display_errors ); | |
| 79 | + error_reporting( $old_error_reporting ); | |
| 80 | + | |
| 81 | + if ( $error_message !== null ) { | |
| 82 | + throw new Exception( "$label failed: $error_message" ); | |
| 83 | + } | |
| 84 | + | |
| 85 | + return $result; | |
| 86 | + } | |
| 87 | + | |
| 88 | + /** | |
| 89 | + * Return canonicalized absolute pathname, throw on warnings / errors. | |
| 90 | + * | |
| 91 | + * @see https://php-legacy-docs.zend.com/manual/php5/en/function.realpath | |
| 92 | + * @see https://www.php.net/manual/en/function.realpath.php | |
| 93 | + * | |
| 94 | + * @param string $path Path being checked. | |
| 95 | + * | |
| 96 | + * @return string Canonicalized absolute pathname | |
| 97 | + * @throws Exception On invalid parameters, or if realpath() has returned false or thrown warnings. | |
| 98 | + */ | |
| 99 | + public static function t_realpath( $path ) { | |
| 100 | + // PHP 5.x won't complain about parameter being unset, so let's do it ourselves. | |
| 101 | + if ( ! $path ) { | |
| 102 | + throw new Exception( 'Filename for realpath() is unset' ); | |
| 103 | + } | |
| 104 | + | |
| 105 | + $label = "realpath( '$path' )"; | |
| 106 | + | |
| 107 | + $realpath_result = static::throw_on_warnings( | |
| 108 | + function () use ( $path ) { | |
| 109 | + return realpath( $path ); | |
| 110 | + }, | |
| 111 | + $label | |
| 112 | + ); | |
| 113 | + | |
| 114 | + if ( false === $realpath_result ) { | |
| 115 | + throw new Exception( "Unable to $label" ); | |
| 116 | + } | |
| 117 | + | |
| 118 | + return $realpath_result; | |
| 119 | + } | |
| 120 | + | |
| 121 | + /** | |
| 122 | + * Check whether a file or directory exists, throw on warnings / errors. | |
| 123 | + * | |
| 124 | + * @see https://php-legacy-docs.zend.com/manual/php5/en/function.file-exists | |
| 125 | + * @see https://www.php.net/manual/en/function.file-exists.php | |
| 126 | + * | |
| 127 | + * @param string $filename Path to the file or directory. | |
| 128 | + * | |
| 129 | + * @return bool True if the file or directory specified by filename exists; false otherwise. | |
| 130 | + * @throws Exception On invalid parameters, or if file_exists() has thrown warnings. | |
| 131 | + */ | |
| 132 | + public static function t_file_exists( $filename ) { | |
| 133 | + // PHP 5.x won't complain about parameter being unset, so let's do it ourselves. | |
| 134 | + if ( ! $filename ) { | |
| 135 | + throw new Exception( 'Filename for file_exists() is unset' ); | |
| 136 | + } | |
| 137 | + | |
| 138 | + return static::throw_on_warnings( | |
| 139 | + function () use ( $filename ) { | |
| 140 | + return file_exists( $filename ); | |
| 141 | + }, | |
| 142 | + "file_exists( '$filename' )" | |
| 143 | + ); | |
| 144 | + } | |
| 145 | + | |
| 146 | + /** | |
| 147 | + * Tell whether the filename (or a directory) is readable, throw on warnings / errors. | |
| 148 | + * | |
| 149 | + * @see https://php-legacy-docs.zend.com/manual/php5/en/function.is-readable | |
| 150 | + * @see https://www.php.net/manual/en/function.is-readable.php | |
| 151 | + * | |
| 152 | + * @param string $filename Filename (or directory) to check. | |
| 153 | + * | |
| 154 | + * @return bool True if the filename (or a directory) exists and is readable, false otherwise. | |
| 155 | + * @throws Exception On invalid parameters, or if is_readable() has thrown warnings. | |
| 156 | + */ | |
| 157 | + public static function t_is_readable( $filename ) { | |
| 158 | + // PHP 5.x won't complain about parameter being unset, so let's do it ourselves. | |
| 159 | + if ( ! $filename ) { | |
| 160 | + throw new Exception( 'Filename for is_readable() is unset' ); | |
| 161 | + } | |
| 162 | + | |
| 163 | + return static::throw_on_warnings( | |
| 164 | + function () use ( $filename ) { | |
| 165 | + return is_readable( $filename ); | |
| 166 | + }, | |
| 167 | + "is_readable( '$filename' )" | |
| 168 | + ); | |
| 169 | + } | |
| 170 | + | |
| 171 | + /** | |
| 172 | + * Tell whether the filename (or a directory) is writable, throw on warnings / errors. | |
| 173 | + * | |
| 174 | + * @see https://php-legacy-docs.zend.com/manual/php5/en/function.is-writable | |
| 175 | + * @see https://www.php.net/manual/en/function.is-writable.php | |
| 176 | + * | |
| 177 | + * @param string $filename Filename (or directory) to check. | |
| 178 | + * | |
| 179 | + * @return bool True if the filename (or a directory) exists and is writable, false otherwise. | |
| 180 | + * @throws Exception On invalid parameters, or if is_writable() has thrown warnings. | |
| 181 | + */ | |
| 182 | + public static function t_is_writable( $filename ) { | |
| 183 | + // PHP 5.x won't complain about parameter being unset, so let's do it ourselves. | |
| 184 | + if ( ! $filename ) { | |
| 185 | + throw new Exception( 'Filename for is_writable() is unset' ); | |
| 186 | + } | |
| 187 | + | |
| 188 | + return static::throw_on_warnings( | |
| 189 | + function () use ( $filename ) { | |
| 190 | + // phpcs:ignore WordPress.WP.AlternativeFunctions.file_system_operations_is_writable | |
| 191 | + return is_writable( $filename ); | |
| 192 | + }, | |
| 193 | + "is_writable( '$filename' )" | |
| 194 | + ); | |
| 195 | + } | |
| 196 | + | |
| 197 | + /** | |
| 198 | + * Get file size, throw on warnings / errors. | |
| 199 | + * | |
| 200 | + * @see https://php-legacy-docs.zend.com/manual/php5/en/function.filesize | |
| 201 | + * @see https://www.php.net/manual/en/function.filesize.php | |
| 202 | + * | |
| 203 | + * @param string $filename Path to the file. | |
| 204 | + * | |
| 205 | + * @return int Size of the file in bytes | |
| 206 | + * @throws Exception On invalid parameters, or if filesize() has thrown warnings. | |
| 207 | + */ | |
| 208 | + public static function t_filesize( $filename ) { | |
| 209 | + // PHP 5.x won't complain about parameter being unset, so let's do it ourselves. | |
| 210 | + if ( ! $filename ) { | |
| 211 | + throw new Exception( 'Filename for filesize() is unset' ); | |
| 212 | + } | |
| 213 | + | |
| 214 | + $label = "filesize( '$filename' )"; | |
| 215 | + | |
| 216 | + $filesize_result = static::throw_on_warnings( | |
| 217 | + function () use ( $filename ) { | |
| 218 | + return filesize( $filename ); | |
| 219 | + }, | |
| 220 | + $label | |
| 221 | + ); | |
| 222 | + | |
| 223 | + if ( false === $filesize_result ) { | |
| 224 | + throw new Exception( "Unable to $label" ); | |
| 225 | + } | |
| 226 | + | |
| 227 | + return $filesize_result; | |
| 228 | + } | |
| 229 | + | |
| 230 | + /** | |
| 231 | + * Get file modification time, throw on warnings / errors. | |
| 232 | + * | |
| 233 | + * @see https://php-legacy-docs.zend.com/manual/php5/en/function.filemtime | |
| 234 | + * @see https://www.php.net/manual/en/function.filemtime.php | |
| 235 | + * | |
| 236 | + * @param string $filename Path to the file. | |
| 237 | + * | |
| 238 | + * @return int The time the file was last modified | |
| 239 | + * @throws Exception On invalid parameters, or if filemtime() has thrown warnings. | |
| 240 | + */ | |
| 241 | + public static function t_filemtime( $filename ) { | |
| 242 | + // PHP 5.x won't complain about parameter being unset, so let's do it ourselves. | |
| 243 | + if ( ! $filename ) { | |
| 244 | + throw new Exception( 'Filename for filemtime() is unset' ); | |
| 245 | + } | |
| 246 | + | |
| 247 | + $label = "filemtime( '$filename' )"; | |
| 248 | + | |
| 249 | + $filemtime_result = static::throw_on_warnings( | |
| 250 | + function () use ( $filename ) { | |
| 251 | + return filemtime( $filename ); | |
| 252 | + }, | |
| 253 | + $label | |
| 254 | + ); | |
| 255 | + | |
| 256 | + if ( false === $filemtime_result ) { | |
| 257 | + throw new Exception( "Unable to $label" ); | |
| 258 | + } | |
| 259 | + | |
| 260 | + return $filemtime_result; | |
| 261 | + } | |
| 262 | + | |
| 263 | + /** | |
| 264 | + * Tell whether the filename is a directory (follow symlinks), throw on warnings / errors. | |
| 265 | + * | |
| 266 | + * @see https://php-legacy-docs.zend.com/manual/php5/en/function.is-dir | |
| 267 | + * @see https://www.php.net/manual/en/function.is-dir.php | |
| 268 | + * | |
| 269 | + * @param string $filename Path to the file. | |
| 270 | + * | |
| 271 | + * @return bool True if the filename (or the symlink's target) exists and is a directory, false otherwise. | |
| 272 | + * @throws Exception On invalid parameters, if is_dir() has thrown warnings, or has failed. | |
| 273 | + */ | |
| 274 | + public static function t_is_dir( $filename ) { | |
| 275 | + // PHP 5.x won't complain about parameter being unset, so let's do it ourselves. | |
| 276 | + if ( ! $filename ) { | |
| 277 | + throw new Exception( 'Filename for is_dir() is unset' ); | |
| 278 | + } | |
| 279 | + | |
| 280 | + return static::throw_on_warnings( | |
| 281 | + function () use ( $filename ) { | |
| 282 | + return is_dir( $filename ); | |
| 283 | + }, | |
| 284 | + "is_dir( '$filename' )" | |
| 285 | + ); | |
| 286 | + } | |
| 287 | + | |
| 288 | + /** | |
| 289 | + * Make a directory, throw on warnings / errors. | |
| 290 | + * | |
| 291 | + * @see https://php-legacy-docs.zend.com/manual/php5/en/function.mkdir | |
| 292 | + * @see https://www.php.net/manual/en/function.mkdir.php | |
| 293 | + * | |
| 294 | + * @param string $directory Directory path. | |
| 295 | + * @param int $permissions Permissions of the newly created directory. | |
| 296 | + * @param bool $recursive If true, then any parent directories to the directory specified will also be created, | |
| 297 | + * with the same permissions. | |
| 298 | + * | |
| 299 | + * @return void | |
| 300 | + * @throws Exception On invalid parameters, if mkdir() has thrown warnings, or has failed. | |
| 301 | + */ | |
| 302 | + public static function t_mkdir( $directory, $permissions = 0777, $recursive = false ) { | |
| 303 | + // PHP 5.x won't complain about permissions being null, so let's do it ourselves. | |
| 304 | + if ( $permissions === null ) { | |
| 305 | + throw new Exception( 'Permissions for mkdir() are unset' ); | |
| 306 | + } | |
| 307 | + | |
| 308 | + $label = "mkdir( '$directory', 0" . decoct( $permissions ) . ', ' . ( $recursive ? 'true' : 'false' ) . ' )'; | |
| 309 | + | |
| 310 | + $mkdir_result = static::throw_on_warnings( | |
| 311 | + function () use ( $directory, $permissions, $recursive ) { | |
| 312 | + // phpcs:ignore WordPress.WP.AlternativeFunctions.file_system_operations_mkdir | |
| 313 | + return mkdir( $directory, $permissions, $recursive ); | |
| 314 | + }, | |
| 315 | + $label | |
| 316 | + ); | |
| 317 | + | |
| 318 | + if ( false === $mkdir_result ) { | |
| 319 | + throw new Exception( "Unable to $label" ); | |
| 320 | + } | |
| 321 | + } | |
| 322 | + | |
| 323 | + /** | |
| 324 | + * List files and directories inside the specified path, throw on warnings / errors. | |
| 325 | + * | |
| 326 | + * @see https://php-legacy-docs.zend.com/manual/php5/en/function.scandir | |
| 327 | + * @see https://www.php.net/manual/en/function.scandir.php | |
| 328 | + * | |
| 329 | + * @param string $directory Directory that will be scanned. | |
| 330 | + * | |
| 331 | + * @return string[] An array of filenames. | |
| 332 | + * @throws Exception If scandir() has thrown warnings, or has failed. | |
| 333 | + */ | |
| 334 | + public static function t_scandir( $directory ) { | |
| 335 | + | |
| 336 | + // PHP 5.x won't complain about parameter being unset, so let's do it ourselves. | |
| 337 | + if ( ! $directory ) { | |
| 338 | + throw new Exception( 'Directory for scandir() is unset' ); | |
| 339 | + } | |
| 340 | + | |
| 341 | + $label = "scandir( '$directory' )"; | |
| 342 | + | |
| 343 | + $scandir_result = static::throw_on_warnings( | |
| 344 | + function () use ( $directory ) { | |
| 345 | + return scandir( $directory ); | |
| 346 | + }, | |
| 347 | + $label | |
| 348 | + ); | |
| 349 | + | |
| 350 | + if ( false === $scandir_result ) { | |
| 351 | + throw new Exception( "Unable to $label" ); | |
| 352 | + } | |
| 353 | + | |
| 354 | + return $scandir_result; | |
| 355 | + } | |
| 356 | + | |
| 357 | + /** | |
| 358 | + * Remove a directory, throw on warnings / errors. | |
| 359 | + * | |
| 360 | + * @see https://php-legacy-docs.zend.com/manual/php5/en/function.rmdir | |
| 361 | + * @see https://www.php.net/manual/en/function.rmdir.php | |
| 362 | + * | |
| 363 | + * @param string $directory Directory path. | |
| 364 | + * | |
| 365 | + * @return void | |
| 366 | + * @throws Exception On invalid parameters, if rmdir() has thrown warnings, or has failed. | |
| 367 | + */ | |
| 368 | + public static function t_rmdir( $directory ) { | |
| 369 | + // PHP 5.x won't complain about parameter being unset, so let's do it ourselves. | |
| 370 | + if ( ! $directory ) { | |
| 371 | + throw new Exception( 'Directory for mkdir() is unset' ); | |
| 372 | + } | |
| 373 | + | |
| 374 | + $label = "rmdir( '$directory' )"; | |
| 375 | + | |
| 376 | + $rmdir_result = static::throw_on_warnings( | |
| 377 | + function () use ( $directory ) { | |
| 378 | + // phpcs:ignore WordPress.WP.AlternativeFunctions.file_system_operations_rmdir | |
| 379 | + return rmdir( $directory ); | |
| 380 | + }, | |
| 381 | + $label | |
| 382 | + ); | |
| 383 | + | |
| 384 | + if ( false === $rmdir_result ) { | |
| 385 | + throw new Exception( "Unable to $label" ); | |
| 386 | + } | |
| 387 | + } | |
| 388 | + | |
| 389 | + /** | |
| 390 | + * Delete a file, throw on warnings / errors. | |
| 391 | + * | |
| 392 | + * @see https://php-legacy-docs.zend.com/manual/php5/en/function.unlink | |
| 393 | + * @see https://www.php.net/manual/en/function.unlink.php | |
| 394 | + * | |
| 395 | + * @param string $filename Path to the file. | |
| 396 | + * | |
| 397 | + * @return void | |
| 398 | + * @throws Exception If unlink() has thrown warnings, or has failed. | |
| 399 | + */ | |
| 400 | + public static function t_unlink( $filename ) { | |
| 401 | + | |
| 402 | + $label = "unlink( '$filename' )"; | |
| 403 | + | |
| 404 | + $unlink_result = static::throw_on_warnings( | |
| 405 | + function () use ( $filename ) { | |
| 406 | + // phpcs:ignore WordPress.WP.AlternativeFunctions.unlink_unlink | |
| 407 | + return unlink( $filename ); | |
| 408 | + }, | |
| 409 | + $label | |
| 410 | + ); | |
| 411 | + | |
| 412 | + if ( false === $unlink_result ) { | |
| 413 | + throw new Exception( "Unable to $label" ); | |
| 414 | + } | |
| 415 | + } | |
| 416 | + | |
| 417 | + /** | |
| 418 | + * Write data to a file, throw on warnings / errors. | |
| 419 | + * | |
| 420 | + * @see https://php-legacy-docs.zend.com/manual/php5/en/function.file-put-contents | |
| 421 | + * @see https://www.php.net/manual/en/function.file-put-contents.php | |
| 422 | + * | |
| 423 | + * @param string $filename Path to the file where to write the data. | |
| 424 | + * @param string $data The data to write. | |
| 425 | + * | |
| 426 | + * @return void | |
| 427 | + * @throws Exception If file_put_contents() has thrown warnings, has failed, or if it didn't write all the bytes. | |
| 428 | + */ | |
| 429 | + public static function t_file_put_contents( $filename, $data ) { | |
| 430 | + | |
| 431 | + // PHP 5.x won't complain about parameter being unset, so let's do it ourselves. | |
| 432 | + if ( ! $filename ) { | |
| 433 | + throw new Exception( 'Filename for f_p_c() is unset' ); | |
| 434 | + } | |
| 435 | + if ( $data === null ) { | |
| 436 | + throw new Exception( 'Data to write is null' ); | |
| 437 | + } | |
| 438 | + | |
| 439 | + $data_length = strlen( $data ); | |
| 440 | + | |
| 441 | + // Weird label is intentional, otherwise security scanners find this label suspicious. | |
| 442 | + $label = "f_p_c( '$filename', $data_length bytes of data )"; | |
| 443 | + | |
| 444 | + $number_of_bytes_written = static::throw_on_warnings( | |
| 445 | + function () use ( $filename, $data ) { | |
| 446 | + // phpcs:ignore WordPress.WP.AlternativeFunctions.file_system_operations_file_put_contents | |
| 447 | + return file_put_contents( $filename, $data ); | |
| 448 | + }, | |
| 449 | + $label | |
| 450 | + ); | |
| 451 | + | |
| 452 | + if ( false === $number_of_bytes_written ) { | |
| 453 | + throw new Exception( "Unable to $label" ); | |
| 454 | + } | |
| 455 | + | |
| 456 | + if ( $number_of_bytes_written !== $data_length ) { | |
| 457 | + throw new Exception( | |
| 458 | + "$label was expected to write $data_length bytes, but wrote $number_of_bytes_written bytes" | |
| 459 | + ); | |
| 460 | + } | |
| 461 | + } | |
| 462 | + | |
| 463 | + /** | |
| 464 | + * Read entire file into a string, throw on warnings / errors. | |
| 465 | + * | |
| 466 | + * @see https://php-legacy-docs.zend.com/manual/php5/en/function.file-get-contents | |
| 467 | + * @see https://www.php.net/manual/en/function.file-get-contents.php | |
| 468 | + * | |
| 469 | + * @param string $filename Name of the file to read. | |
| 470 | + * | |
| 471 | + * @return string The read data. | |
| 472 | + * @throws Exception If file_get_contents() has thrown warnings, or has failed. | |
| 473 | + */ | |
| 474 | + public static function t_file_get_contents( $filename ) { | |
| 475 | + | |
| 476 | + // PHP 5.x won't complain about parameter being unset, so let's do it ourselves. | |
| 477 | + if ( ! $filename ) { | |
| 478 | + throw new Exception( 'Filename for f_g_c() is unset' ); | |
| 479 | + } | |
| 480 | + | |
| 481 | + // Weird label is intentional, otherwise security scanners find this label suspicious. | |
| 482 | + $label = "f_g_c( '$filename' )"; | |
| 483 | + | |
| 484 | + $fgc_result = static::throw_on_warnings( | |
| 485 | + function () use ( $filename ) { | |
| 486 | + // phpcs:ignore WordPress.WP.AlternativeFunctions.file_get_contents_file_get_contents | |
| 487 | + return file_get_contents( $filename ); | |
| 488 | + }, | |
| 489 | + $label | |
| 490 | + ); | |
| 491 | + | |
| 492 | + if ( false === $fgc_result ) { | |
| 493 | + throw new Exception( "Unable to $label" ); | |
| 494 | + } | |
| 495 | + | |
| 496 | + return $fgc_result; | |
| 497 | + } | |
| 498 | +} | |