| Total Complexity | 107 |
| Total Lines | 566 |
| Duplicated Lines | 0 % |
| Changes | 1 | ||
| Bugs | 1 | Features | 0 |
Complex classes like OC_Helper often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use OC_Helper, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
||
| 55 | class OC_Helper { |
||
| 56 | private static $templateManager; |
||
| 57 | |||
| 58 | /** |
||
| 59 | * Make a human file size |
||
| 60 | * @param int $bytes file size in bytes |
||
| 61 | * @return string a human readable file size |
||
| 62 | * |
||
| 63 | * Makes 2048 to 2 kB. |
||
| 64 | */ |
||
| 65 | public static function humanFileSize($bytes) { |
||
| 66 | if ($bytes < 0) { |
||
| 67 | return "?"; |
||
| 68 | } |
||
| 69 | if ($bytes < 1024) { |
||
| 70 | return "$bytes B"; |
||
| 71 | } |
||
| 72 | $bytes = round($bytes / 1024, 0); |
||
| 73 | if ($bytes < 1024) { |
||
| 74 | return "$bytes KB"; |
||
| 75 | } |
||
| 76 | $bytes = round($bytes / 1024, 1); |
||
| 77 | if ($bytes < 1024) { |
||
| 78 | return "$bytes MB"; |
||
| 79 | } |
||
| 80 | $bytes = round($bytes / 1024, 1); |
||
| 81 | if ($bytes < 1024) { |
||
| 82 | return "$bytes GB"; |
||
| 83 | } |
||
| 84 | $bytes = round($bytes / 1024, 1); |
||
| 85 | if ($bytes < 1024) { |
||
| 86 | return "$bytes TB"; |
||
| 87 | } |
||
| 88 | |||
| 89 | $bytes = round($bytes / 1024, 1); |
||
| 90 | return "$bytes PB"; |
||
| 91 | } |
||
| 92 | |||
| 93 | /** |
||
| 94 | * Make a computer file size |
||
| 95 | * @param string $str file size in human readable format |
||
| 96 | * @return float|bool a file size in bytes |
||
| 97 | * |
||
| 98 | * Makes 2kB to 2048. |
||
| 99 | * |
||
| 100 | * Inspired by: https://www.php.net/manual/en/function.filesize.php#92418 |
||
| 101 | */ |
||
| 102 | public static function computerFileSize($str) { |
||
| 103 | $str = strtolower($str); |
||
| 104 | if (is_numeric($str)) { |
||
| 105 | return (float)$str; |
||
| 106 | } |
||
| 107 | |||
| 108 | $bytes_array = [ |
||
| 109 | 'b' => 1, |
||
| 110 | 'k' => 1024, |
||
| 111 | 'kb' => 1024, |
||
| 112 | 'mb' => 1024 * 1024, |
||
| 113 | 'm' => 1024 * 1024, |
||
| 114 | 'gb' => 1024 * 1024 * 1024, |
||
| 115 | 'g' => 1024 * 1024 * 1024, |
||
| 116 | 'tb' => 1024 * 1024 * 1024 * 1024, |
||
| 117 | 't' => 1024 * 1024 * 1024 * 1024, |
||
| 118 | 'pb' => 1024 * 1024 * 1024 * 1024 * 1024, |
||
| 119 | 'p' => 1024 * 1024 * 1024 * 1024 * 1024, |
||
| 120 | ]; |
||
| 121 | |||
| 122 | $bytes = (float)$str; |
||
| 123 | |||
| 124 | if (preg_match('#([kmgtp]?b?)$#si', $str, $matches) && !empty($bytes_array[$matches[1]])) { |
||
| 125 | $bytes *= $bytes_array[$matches[1]]; |
||
| 126 | } else { |
||
| 127 | return false; |
||
| 128 | } |
||
| 129 | |||
| 130 | $bytes = round($bytes); |
||
| 131 | |||
| 132 | return $bytes; |
||
| 133 | } |
||
| 134 | |||
| 135 | /** |
||
| 136 | * Recursive copying of folders |
||
| 137 | * @param string $src source folder |
||
| 138 | * @param string $dest target folder |
||
| 139 | * |
||
| 140 | */ |
||
| 141 | public static function copyr($src, $dest) { |
||
| 142 | if (is_dir($src)) { |
||
| 143 | if (!is_dir($dest)) { |
||
| 144 | mkdir($dest); |
||
| 145 | } |
||
| 146 | $files = scandir($src); |
||
| 147 | foreach ($files as $file) { |
||
| 148 | if ($file != "." && $file != "..") { |
||
| 149 | self::copyr("$src/$file", "$dest/$file"); |
||
| 150 | } |
||
| 151 | } |
||
| 152 | } elseif (file_exists($src) && !\OC\Files\Filesystem::isFileBlacklisted($src)) { |
||
| 153 | copy($src, $dest); |
||
| 154 | } |
||
| 155 | } |
||
| 156 | |||
| 157 | /** |
||
| 158 | * Recursive deletion of folders |
||
| 159 | * @param string $dir path to the folder |
||
| 160 | * @param bool $deleteSelf if set to false only the content of the folder will be deleted |
||
| 161 | * @return bool |
||
| 162 | */ |
||
| 163 | public static function rmdirr($dir, $deleteSelf = true) { |
||
| 164 | if (is_dir($dir)) { |
||
| 165 | $files = new RecursiveIteratorIterator( |
||
| 166 | new RecursiveDirectoryIterator($dir, RecursiveDirectoryIterator::SKIP_DOTS), |
||
| 167 | RecursiveIteratorIterator::CHILD_FIRST |
||
| 168 | ); |
||
| 169 | |||
| 170 | foreach ($files as $fileInfo) { |
||
| 171 | /** @var SplFileInfo $fileInfo */ |
||
| 172 | if ($fileInfo->isLink()) { |
||
| 173 | unlink($fileInfo->getPathname()); |
||
| 174 | } elseif ($fileInfo->isDir()) { |
||
| 175 | rmdir($fileInfo->getRealPath()); |
||
| 176 | } else { |
||
| 177 | unlink($fileInfo->getRealPath()); |
||
| 178 | } |
||
| 179 | } |
||
| 180 | if ($deleteSelf) { |
||
| 181 | rmdir($dir); |
||
| 182 | } |
||
| 183 | } elseif (file_exists($dir)) { |
||
| 184 | if ($deleteSelf) { |
||
| 185 | unlink($dir); |
||
| 186 | } |
||
| 187 | } |
||
| 188 | if (!$deleteSelf) { |
||
| 189 | return true; |
||
| 190 | } |
||
| 191 | |||
| 192 | return !file_exists($dir); |
||
| 193 | } |
||
| 194 | |||
| 195 | /** |
||
| 196 | * @deprecated 18.0.0 |
||
| 197 | * @return \OC\Files\Type\TemplateManager |
||
| 198 | */ |
||
| 199 | public static function getFileTemplateManager() { |
||
| 200 | if (!self::$templateManager) { |
||
| 201 | self::$templateManager = new \OC\Files\Type\TemplateManager(); |
||
|
|
|||
| 202 | } |
||
| 203 | return self::$templateManager; |
||
| 204 | } |
||
| 205 | |||
| 206 | /** |
||
| 207 | * detect if a given program is found in the search PATH |
||
| 208 | * |
||
| 209 | * @param string $name |
||
| 210 | * @param bool $path |
||
| 211 | * @internal param string $program name |
||
| 212 | * @internal param string $optional search path, defaults to $PATH |
||
| 213 | * @return bool true if executable program found in path |
||
| 214 | */ |
||
| 215 | public static function canExecute($name, $path = false) { |
||
| 216 | // path defaults to PATH from environment if not set |
||
| 217 | if ($path === false) { |
||
| 218 | $path = getenv("PATH"); |
||
| 219 | } |
||
| 220 | // we look for an executable file of that name |
||
| 221 | $exts = [""]; |
||
| 222 | $check_fn = "is_executable"; |
||
| 223 | // Default check will be done with $path directories : |
||
| 224 | $dirs = explode(PATH_SEPARATOR, $path); |
||
| 225 | // WARNING : We have to check if open_basedir is enabled : |
||
| 226 | $obd = OC::$server->get(IniGetWrapper::class)->getString('open_basedir'); |
||
| 227 | if ($obd != "none") { |
||
| 228 | $obd_values = explode(PATH_SEPARATOR, $obd); |
||
| 229 | if (count($obd_values) > 0 and $obd_values[0]) { |
||
| 230 | // open_basedir is in effect ! |
||
| 231 | // We need to check if the program is in one of these dirs : |
||
| 232 | $dirs = $obd_values; |
||
| 233 | } |
||
| 234 | } |
||
| 235 | foreach ($dirs as $dir) { |
||
| 236 | foreach ($exts as $ext) { |
||
| 237 | if ($check_fn("$dir/$name" . $ext)) { |
||
| 238 | return true; |
||
| 239 | } |
||
| 240 | } |
||
| 241 | } |
||
| 242 | return false; |
||
| 243 | } |
||
| 244 | |||
| 245 | /** |
||
| 246 | * copy the contents of one stream to another |
||
| 247 | * |
||
| 248 | * @param resource $source |
||
| 249 | * @param resource $target |
||
| 250 | * @return array the number of bytes copied and result |
||
| 251 | */ |
||
| 252 | public static function streamCopy($source, $target) { |
||
| 253 | if (!$source or !$target) { |
||
| 254 | return [0, false]; |
||
| 255 | } |
||
| 256 | $bufSize = 8192; |
||
| 257 | $result = true; |
||
| 258 | $count = 0; |
||
| 259 | while (!feof($source)) { |
||
| 260 | $buf = fread($source, $bufSize); |
||
| 261 | $bytesWritten = fwrite($target, $buf); |
||
| 262 | if ($bytesWritten !== false) { |
||
| 263 | $count += $bytesWritten; |
||
| 264 | } |
||
| 265 | // note: strlen is expensive so only use it when necessary, |
||
| 266 | // on the last block |
||
| 267 | if ($bytesWritten === false |
||
| 268 | || ($bytesWritten < $bufSize && $bytesWritten < strlen($buf)) |
||
| 269 | ) { |
||
| 270 | // write error, could be disk full ? |
||
| 271 | $result = false; |
||
| 272 | break; |
||
| 273 | } |
||
| 274 | } |
||
| 275 | return [$count, $result]; |
||
| 276 | } |
||
| 277 | |||
| 278 | /** |
||
| 279 | * Adds a suffix to the name in case the file exists |
||
| 280 | * |
||
| 281 | * @param string $path |
||
| 282 | * @param string $filename |
||
| 283 | * @return string |
||
| 284 | */ |
||
| 285 | public static function buildNotExistingFileName($path, $filename) { |
||
| 286 | $view = \OC\Files\Filesystem::getView(); |
||
| 287 | return self::buildNotExistingFileNameForView($path, $filename, $view); |
||
| 288 | } |
||
| 289 | |||
| 290 | /** |
||
| 291 | * Adds a suffix to the name in case the file exists |
||
| 292 | * |
||
| 293 | * @param string $path |
||
| 294 | * @param string $filename |
||
| 295 | * @return string |
||
| 296 | */ |
||
| 297 | public static function buildNotExistingFileNameForView($path, $filename, \OC\Files\View $view) { |
||
| 298 | if ($path === '/') { |
||
| 299 | $path = ''; |
||
| 300 | } |
||
| 301 | if ($pos = strrpos($filename, '.')) { |
||
| 302 | $name = substr($filename, 0, $pos); |
||
| 303 | $ext = substr($filename, $pos); |
||
| 304 | } else { |
||
| 305 | $name = $filename; |
||
| 306 | $ext = ''; |
||
| 307 | } |
||
| 308 | |||
| 309 | $newpath = $path . '/' . $filename; |
||
| 310 | if ($view->file_exists($newpath)) { |
||
| 311 | if (preg_match_all('/\((\d+)\)/', $name, $matches, PREG_OFFSET_CAPTURE)) { |
||
| 312 | //Replace the last "(number)" with "(number+1)" |
||
| 313 | $last_match = count($matches[0]) - 1; |
||
| 314 | $counter = $matches[1][$last_match][0] + 1; |
||
| 315 | $offset = $matches[0][$last_match][1]; |
||
| 316 | $match_length = strlen($matches[0][$last_match][0]); |
||
| 317 | } else { |
||
| 318 | $counter = 2; |
||
| 319 | $match_length = 0; |
||
| 320 | $offset = false; |
||
| 321 | } |
||
| 322 | do { |
||
| 323 | if ($offset) { |
||
| 324 | //Replace the last "(number)" with "(number+1)" |
||
| 325 | $newname = substr_replace($name, '(' . $counter . ')', $offset, $match_length); |
||
| 326 | } else { |
||
| 327 | $newname = $name . ' (' . $counter . ')'; |
||
| 328 | } |
||
| 329 | $newpath = $path . '/' . $newname . $ext; |
||
| 330 | $counter++; |
||
| 331 | } while ($view->file_exists($newpath)); |
||
| 332 | } |
||
| 333 | |||
| 334 | return $newpath; |
||
| 335 | } |
||
| 336 | |||
| 337 | /** |
||
| 338 | * Returns an array with all keys from input lowercased or uppercased. Numbered indices are left as is. |
||
| 339 | * |
||
| 340 | * @param array $input The array to work on |
||
| 341 | * @param int $case Either MB_CASE_UPPER or MB_CASE_LOWER (default) |
||
| 342 | * @param string $encoding The encoding parameter is the character encoding. Defaults to UTF-8 |
||
| 343 | * @return array |
||
| 344 | * |
||
| 345 | * Returns an array with all keys from input lowercased or uppercased. Numbered indices are left as is. |
||
| 346 | * based on https://www.php.net/manual/en/function.array-change-key-case.php#107715 |
||
| 347 | * |
||
| 348 | */ |
||
| 349 | public static function mb_array_change_key_case($input, $case = MB_CASE_LOWER, $encoding = 'UTF-8') { |
||
| 350 | $case = ($case != MB_CASE_UPPER) ? MB_CASE_LOWER : MB_CASE_UPPER; |
||
| 351 | $ret = []; |
||
| 352 | foreach ($input as $k => $v) { |
||
| 353 | $ret[mb_convert_case($k, $case, $encoding)] = $v; |
||
| 354 | } |
||
| 355 | return $ret; |
||
| 356 | } |
||
| 357 | |||
| 358 | /** |
||
| 359 | * performs a search in a nested array |
||
| 360 | * @param array $haystack the array to be searched |
||
| 361 | * @param string $needle the search string |
||
| 362 | * @param mixed $index optional, only search this key name |
||
| 363 | * @return mixed the key of the matching field, otherwise false |
||
| 364 | * |
||
| 365 | * performs a search in a nested array |
||
| 366 | * |
||
| 367 | * taken from https://www.php.net/manual/en/function.array-search.php#97645 |
||
| 368 | */ |
||
| 369 | public static function recursiveArraySearch($haystack, $needle, $index = null) { |
||
| 370 | $aIt = new RecursiveArrayIterator($haystack); |
||
| 371 | $it = new RecursiveIteratorIterator($aIt); |
||
| 372 | |||
| 373 | while ($it->valid()) { |
||
| 374 | if (((isset($index) and ($it->key() == $index)) or !isset($index)) and ($it->current() == $needle)) { |
||
| 375 | return $aIt->key(); |
||
| 376 | } |
||
| 377 | |||
| 378 | $it->next(); |
||
| 379 | } |
||
| 380 | |||
| 381 | return false; |
||
| 382 | } |
||
| 383 | |||
| 384 | /** |
||
| 385 | * calculates the maximum upload size respecting system settings, free space and user quota |
||
| 386 | * |
||
| 387 | * @param string $dir the current folder where the user currently operates |
||
| 388 | * @param int $freeSpace the number of bytes free on the storage holding $dir, if not set this will be received from the storage directly |
||
| 389 | * @return int number of bytes representing |
||
| 390 | */ |
||
| 391 | public static function maxUploadFilesize($dir, $freeSpace = null) { |
||
| 392 | if (is_null($freeSpace) || $freeSpace < 0) { |
||
| 393 | $freeSpace = self::freeSpace($dir); |
||
| 394 | } |
||
| 395 | return min($freeSpace, self::uploadLimit()); |
||
| 396 | } |
||
| 397 | |||
| 398 | /** |
||
| 399 | * Calculate free space left within user quota |
||
| 400 | * |
||
| 401 | * @param string $dir the current folder where the user currently operates |
||
| 402 | * @return int number of bytes representing |
||
| 403 | */ |
||
| 404 | public static function freeSpace($dir) { |
||
| 405 | $freeSpace = \OC\Files\Filesystem::free_space($dir); |
||
| 406 | if ($freeSpace < \OCP\Files\FileInfo::SPACE_UNLIMITED) { |
||
| 407 | $freeSpace = max($freeSpace, 0); |
||
| 408 | return $freeSpace; |
||
| 409 | } else { |
||
| 410 | return (INF > 0)? INF: PHP_INT_MAX; // work around https://bugs.php.net/bug.php?id=69188 |
||
| 411 | } |
||
| 412 | } |
||
| 413 | |||
| 414 | /** |
||
| 415 | * Calculate PHP upload limit |
||
| 416 | * |
||
| 417 | * @return int PHP upload file size limit |
||
| 418 | */ |
||
| 419 | public static function uploadLimit() { |
||
| 429 | } |
||
| 430 | } |
||
| 431 | |||
| 432 | /** |
||
| 433 | * Checks if a function is available |
||
| 434 | * |
||
| 435 | * @param string $function_name |
||
| 436 | * @return bool |
||
| 437 | */ |
||
| 438 | public static function is_function_enabled($function_name) { |
||
| 439 | if (!function_exists($function_name)) { |
||
| 440 | return false; |
||
| 441 | } |
||
| 442 | $ini = \OC::$server->get(IniGetWrapper::class); |
||
| 443 | $disabled = explode(',', $ini->get('disable_functions') ?: ''); |
||
| 444 | $disabled = array_map('trim', $disabled); |
||
| 445 | if (in_array($function_name, $disabled)) { |
||
| 446 | return false; |
||
| 447 | } |
||
| 448 | $disabled = explode(',', $ini->get('suhosin.executor.func.blacklist') ?: ''); |
||
| 449 | $disabled = array_map('trim', $disabled); |
||
| 450 | if (in_array($function_name, $disabled)) { |
||
| 451 | return false; |
||
| 452 | } |
||
| 453 | return true; |
||
| 454 | } |
||
| 455 | |||
| 456 | /** |
||
| 457 | * Try to find a program |
||
| 458 | * |
||
| 459 | * @param string $program |
||
| 460 | * @return null|string |
||
| 461 | */ |
||
| 462 | public static function findBinaryPath($program) { |
||
| 476 | } |
||
| 477 | |||
| 478 | /** |
||
| 479 | * Calculate the disc space for the given path |
||
| 480 | * |
||
| 481 | * BEWARE: this requires that Util::setupFS() was called |
||
| 482 | * already ! |
||
| 483 | * |
||
| 484 | * @param string $path |
||
| 485 | * @param \OCP\Files\FileInfo $rootInfo (optional) |
||
| 486 | * @return array |
||
| 487 | * @throws \OCP\Files\NotFoundException |
||
| 488 | */ |
||
| 489 | public static function getStorageInfo($path, $rootInfo = null) { |
||
| 490 | // return storage info without adding mount points |
||
| 491 | $includeExtStorage = \OC::$server->getSystemConfig()->getValue('quota_include_external_storage', false); |
||
| 492 | |||
| 493 | if (!$rootInfo) { |
||
| 494 | $rootInfo = \OC\Files\Filesystem::getFileInfo($path, $includeExtStorage ? 'ext' : false); |
||
| 495 | } |
||
| 496 | if (!$rootInfo instanceof \OCP\Files\FileInfo) { |
||
| 497 | throw new \OCP\Files\NotFoundException(); |
||
| 498 | } |
||
| 499 | $used = $rootInfo->getSize(); |
||
| 500 | if ($used < 0) { |
||
| 501 | $used = 0; |
||
| 502 | } |
||
| 503 | $quota = \OCP\Files\FileInfo::SPACE_UNLIMITED; |
||
| 504 | $mount = $rootInfo->getMountPoint(); |
||
| 505 | $storage = $mount->getStorage(); |
||
| 506 | $sourceStorage = $storage; |
||
| 507 | if ($storage->instanceOfStorage('\OCA\Files_Sharing\SharedStorage')) { |
||
| 508 | $includeExtStorage = false; |
||
| 509 | $sourceStorage = $storage->getSourceStorage(); |
||
| 510 | } |
||
| 511 | if ($includeExtStorage) { |
||
| 512 | if ($storage->instanceOfStorage('\OC\Files\Storage\Home') |
||
| 513 | || $storage->instanceOfStorage('\OC\Files\ObjectStore\HomeObjectStoreStorage') |
||
| 514 | ) { |
||
| 515 | /** @var \OC\Files\Storage\Home $storage */ |
||
| 516 | $user = $storage->getUser(); |
||
| 517 | } else { |
||
| 518 | $user = \OC::$server->getUserSession()->getUser(); |
||
| 519 | } |
||
| 520 | $quota = OC_Util::getUserQuota($user); |
||
| 521 | if ($quota !== \OCP\Files\FileInfo::SPACE_UNLIMITED) { |
||
| 522 | // always get free space / total space from root + mount points |
||
| 523 | return self::getGlobalStorageInfo($quota, $user, $mount); |
||
| 524 | } |
||
| 525 | } |
||
| 526 | |||
| 527 | // TODO: need a better way to get total space from storage |
||
| 528 | if ($sourceStorage->instanceOfStorage('\OC\Files\Storage\Wrapper\Quota')) { |
||
| 529 | /** @var \OC\Files\Storage\Wrapper\Quota $storage */ |
||
| 530 | $quota = $sourceStorage->getQuota(); |
||
| 531 | } |
||
| 532 | $free = $sourceStorage->free_space($rootInfo->getInternalPath()); |
||
| 533 | if ($free >= 0) { |
||
| 534 | $total = $free + $used; |
||
| 535 | } else { |
||
| 536 | $total = $free; //either unknown or unlimited |
||
| 537 | } |
||
| 538 | if ($total > 0) { |
||
| 539 | if ($quota > 0 && $total > $quota) { |
||
| 540 | $total = $quota; |
||
| 541 | } |
||
| 542 | // prevent division by zero or error codes (negative values) |
||
| 543 | $relative = round(($used / $total) * 10000) / 100; |
||
| 544 | } else { |
||
| 545 | $relative = 0; |
||
| 546 | } |
||
| 547 | |||
| 548 | $ownerId = $storage->getOwner($path); |
||
| 549 | $ownerDisplayName = ''; |
||
| 550 | $owner = \OC::$server->getUserManager()->get($ownerId); |
||
| 551 | if ($owner) { |
||
| 552 | $ownerDisplayName = $owner->getDisplayName(); |
||
| 553 | } |
||
| 554 | if (substr_count($mount->getMountPoint(), '/') < 3) { |
||
| 555 | $mountPoint = ''; |
||
| 556 | } else { |
||
| 557 | [,,,$mountPoint] = explode('/', $mount->getMountPoint(), 4); |
||
| 558 | } |
||
| 559 | |||
| 560 | return [ |
||
| 561 | 'free' => $free, |
||
| 562 | 'used' => $used, |
||
| 563 | 'quota' => $quota, |
||
| 564 | 'total' => $total, |
||
| 565 | 'relative' => $relative, |
||
| 566 | 'owner' => $ownerId, |
||
| 567 | 'ownerDisplayName' => $ownerDisplayName, |
||
| 568 | 'mountType' => $mount->getMountType(), |
||
| 569 | 'mountPoint' => trim($mountPoint, '/'), |
||
| 570 | ]; |
||
| 571 | } |
||
| 572 | |||
| 573 | /** |
||
| 574 | * Get storage info including all mount points and quota |
||
| 575 | */ |
||
| 576 | private static function getGlobalStorageInfo(int $quota, IUser $user, IMountPoint $mount): array { |
||
| 612 | ]; |
||
| 613 | } |
||
| 614 | |||
| 615 | /** |
||
| 616 | * Returns whether the config file is set manually to read-only |
||
| 617 | * @return bool |
||
| 618 | */ |
||
| 619 | public static function isReadOnlyConfigEnabled() { |
||
| 620 | return \OC::$server->getConfig()->getSystemValue('config_is_read_only', false); |
||
| 621 | } |
||
| 622 | } |
||
| 623 |