elFinderConnector.class.php
| 1 | <?php |
| 2 | |
| 3 | /** |
| 4 | * Default elFinder connector |
| 5 | * |
| 6 | * @author Dmitry (dio) Levashov |
| 7 | **/ |
| 8 | class elFinderConnector |
| 9 | { |
| 10 | /** |
| 11 | * elFinder instance |
| 12 | * |
| 13 | * @var elFinder |
| 14 | **/ |
| 15 | protected $elFinder; |
| 16 | |
| 17 | /** |
| 18 | * Options |
| 19 | * |
| 20 | * @var array |
| 21 | **/ |
| 22 | protected $options = array(); |
| 23 | |
| 24 | /** |
| 25 | * Must be use output($data) $data['header'] |
| 26 | * |
| 27 | * @var string |
| 28 | * @deprecated |
| 29 | **/ |
| 30 | protected $header = ''; |
| 31 | |
| 32 | /** |
| 33 | * HTTP request method |
| 34 | * |
| 35 | * @var string |
| 36 | */ |
| 37 | protected $reqMethod = ''; |
| 38 | |
| 39 | /** |
| 40 | * Content type of output JSON |
| 41 | * |
| 42 | * @var string |
| 43 | */ |
| 44 | protected static $contentType = 'Content-Type: application/json; charset=utf-8'; |
| 45 | |
| 46 | /** |
| 47 | * CSRF token header name |
| 48 | * |
| 49 | * @var string |
| 50 | */ |
| 51 | protected static $csrfHeaderName = 'X-elFinder-CSRF'; |
| 52 | |
| 53 | /** |
| 54 | * JSON response key for CSRF token |
| 55 | * |
| 56 | * @var string |
| 57 | */ |
| 58 | protected static $csrfResponseKey = 'csrf'; |
| 59 | |
| 60 | /** |
| 61 | * Session key for CSRF token data |
| 62 | * |
| 63 | * @var string |
| 64 | */ |
| 65 | protected static $csrfSessionKey = 'elfinder.csrf'; |
| 66 | |
| 67 | /** |
| 68 | * Default CSRF token TTL seconds |
| 69 | * |
| 70 | * @var int |
| 71 | */ |
| 72 | protected static $csrfTokenTtl = 900; |
| 73 | |
| 74 | /** |
| 75 | * Commands that require CSRF header validation |
| 76 | * |
| 77 | * @var array |
| 78 | */ |
| 79 | protected static $csrfProtectedCmds = array( |
| 80 | 'archive' => true, |
| 81 | 'chmod' => true, |
| 82 | 'duplicate' => true, |
| 83 | 'extract' => true, |
| 84 | 'mkdir' => true, |
| 85 | 'mkfile' => true, |
| 86 | 'netmount' => true, |
| 87 | 'paste' => true, |
| 88 | 'put' => true, |
| 89 | 'rename' => true, |
| 90 | 'resize' => true, |
| 91 | 'rm' => true, |
| 92 | 'upload' => true |
| 93 | ); |
| 94 | |
| 95 | /** |
| 96 | * Constructor |
| 97 | * |
| 98 | * @param $elFinder |
| 99 | * @param bool $debug |
| 100 | * |
| 101 | * @author Dmitry (dio) Levashov |
| 102 | */ |
| 103 | public function __construct($elFinder, $debug = false) |
| 104 | { |
| 105 | |
| 106 | $this->elFinder = $elFinder; |
| 107 | $this->reqMethod = strtoupper($_SERVER["REQUEST_METHOD"]); |
| 108 | if ($debug) { |
| 109 | self::$contentType = 'Content-Type: text/plain; charset=utf-8'; |
| 110 | } |
| 111 | } |
| 112 | |
| 113 | /** |
| 114 | * Determine whether the command requires CSRF validation |
| 115 | * |
| 116 | * @param string $cmd |
| 117 | * |
| 118 | * @return bool |
| 119 | */ |
| 120 | protected function csrfProtectedCommand($cmd) |
| 121 | { |
| 122 | return isset(self::$csrfProtectedCmds[$cmd]); |
| 123 | } |
| 124 | |
| 125 | /** |
| 126 | * Determine whether current request should issue CSRF token |
| 127 | * |
| 128 | * @param string $cmd |
| 129 | * @param array $src |
| 130 | * |
| 131 | * @return bool |
| 132 | */ |
| 133 | protected function shouldIssueCsrfToken($cmd, array $src) |
| 134 | { |
| 135 | return ($cmd === 'open' && !empty($src['init'])); |
| 136 | } |
| 137 | |
| 138 | /** |
| 139 | * Determine whether current request should refresh CSRF token TTL |
| 140 | * |
| 141 | * @param string $cmd |
| 142 | * @param array $src |
| 143 | * |
| 144 | * @return bool |
| 145 | */ |
| 146 | protected function shouldRefreshCsrfToken($cmd, array $src) |
| 147 | { |
| 148 | return ( |
| 149 | ($cmd === 'info' && !empty($src['reload'])) |
| 150 | || $cmd === 'open' |
| 151 | ); |
| 152 | } |
| 153 | |
| 154 | /** |
| 155 | * Generate or reuse current CSRF token |
| 156 | * |
| 157 | * @return string |
| 158 | * @throws Exception |
| 159 | */ |
| 160 | protected function issueCsrfToken() |
| 161 | { |
| 162 | $session = $this->elFinder->getSession(); |
| 163 | $now = time(); |
| 164 | $tokenData = $session->get(self::$csrfSessionKey, array()); |
| 165 | |
| 166 | if (!is_array($tokenData)) { |
| 167 | $tokenData = array(); |
| 168 | } |
| 169 | |
| 170 | if (empty($tokenData['token']) || empty($tokenData['expires']) || (int)$tokenData['expires'] <= $now) { |
| 171 | $tokenData = array( |
| 172 | 'token' => $this->generateCsrfToken(), |
| 173 | 'expires' => $now + self::$csrfTokenTtl |
| 174 | ); |
| 175 | $session->set(self::$csrfSessionKey, $tokenData); |
| 176 | } |
| 177 | |
| 178 | return $tokenData['token']; |
| 179 | } |
| 180 | |
| 181 | /** |
| 182 | * Generate a random CSRF token string with old PHP compatibility |
| 183 | * |
| 184 | * @return string |
| 185 | * @throws Exception |
| 186 | */ |
| 187 | protected function generateCsrfToken() |
| 188 | { |
| 189 | if (function_exists('random_bytes')) { |
| 190 | return bin2hex(random_bytes(32)); |
| 191 | } |
| 192 | |
| 193 | if (function_exists('openssl_random_pseudo_bytes')) { |
| 194 | return bin2hex(openssl_random_pseudo_bytes(32)); |
| 195 | } |
| 196 | |
| 197 | return sha1(uniqid(mt_rand(), true) . microtime(true)); |
| 198 | } |
| 199 | |
| 200 | /** |
| 201 | * Get HTTP request header value |
| 202 | * |
| 203 | * @param string $name |
| 204 | * |
| 205 | * @return string |
| 206 | */ |
| 207 | protected function getRequestHeader($name) |
| 208 | { |
| 209 | $serverKey = 'HTTP_' . strtoupper(str_replace('-', '_', $name)); |
| 210 | if (isset($_SERVER[$serverKey])) { |
| 211 | return trim($_SERVER[$serverKey]); |
| 212 | } else { |
| 213 | if (function_exists('getallheaders')) { |
| 214 | $headers = getallheaders(); |
| 215 | if (isset($headers[$name])) { |
| 216 | return trim($headers[$name]); |
| 217 | } |
| 218 | } |
| 219 | return ''; |
| 220 | } |
| 221 | } |
| 222 | |
| 223 | /** |
| 224 | * Validate CSRF token header for protected commands |
| 225 | * |
| 226 | * @return bool |
| 227 | */ |
| 228 | protected function validateCsrfToken() |
| 229 | { |
| 230 | $session = $this->elFinder->getSession(); |
| 231 | $tokenData = $session->get(self::$csrfSessionKey, array()); |
| 232 | $headerToken = $this->getRequestHeader(self::$csrfHeaderName); |
| 233 | $now = time(); |
| 234 | |
| 235 | if (!is_array($tokenData) || empty($tokenData['token']) || empty($tokenData['expires'])) { |
| 236 | return false; |
| 237 | } |
| 238 | |
| 239 | if ((int)$tokenData['expires'] <= $now) { |
| 240 | $session->remove(self::$csrfSessionKey); |
| 241 | return false; |
| 242 | } |
| 243 | |
| 244 | if ($headerToken === '') { |
| 245 | return false; |
| 246 | } |
| 247 | |
| 248 | if (function_exists('hash_equals')) { |
| 249 | return hash_equals($tokenData['token'], $headerToken); |
| 250 | } |
| 251 | |
| 252 | return ($tokenData['token'] === $headerToken); |
| 253 | } |
| 254 | |
| 255 | /** |
| 256 | * Refresh current CSRF token TTL if header matches the active token |
| 257 | * |
| 258 | * @return bool |
| 259 | */ |
| 260 | protected function refreshCsrfTokenTtl() |
| 261 | { |
| 262 | $session = $this->elFinder->getSession(); |
| 263 | $tokenData = $session->get(self::$csrfSessionKey, array()); |
| 264 | $headerToken = $this->getRequestHeader(self::$csrfHeaderName); |
| 265 | $now = time(); |
| 266 | $isValid = false; |
| 267 | |
| 268 | if (!is_array($tokenData) || empty($tokenData['token']) || empty($tokenData['expires']) || $headerToken === '') { |
| 269 | return false; |
| 270 | } |
| 271 | |
| 272 | if ((int)$tokenData['expires'] <= $now) { |
| 273 | $session->remove(self::$csrfSessionKey); |
| 274 | return false; |
| 275 | } |
| 276 | |
| 277 | if (function_exists('hash_equals')) { |
| 278 | $isValid = hash_equals($tokenData['token'], $headerToken); |
| 279 | } else { |
| 280 | $isValid = ($tokenData['token'] === $headerToken); |
| 281 | } |
| 282 | |
| 283 | if (!$isValid) { |
| 284 | return false; |
| 285 | } |
| 286 | |
| 287 | $tokenData['expires'] = $now + self::$csrfTokenTtl; |
| 288 | $session->set(self::$csrfSessionKey, $tokenData); |
| 289 | |
| 290 | return true; |
| 291 | } |
| 292 | |
| 293 | /** |
| 294 | * Output CSRF validation error response |
| 295 | * |
| 296 | * @return void |
| 297 | * @throws elFinderAbortException |
| 298 | */ |
| 299 | protected function outputCsrfError() |
| 300 | { |
| 301 | $this->output(array( |
| 302 | 'error' => $this->elFinder->error(elFinder::ERROR_PERM_DENIED, 'Invalid request. Please reload.'), |
| 303 | 'csrfReload' => true, |
| 304 | 'header' => array( |
| 305 | 'HTTP/1.1 403 Forbidden', |
| 306 | self::$contentType |
| 307 | ) |
| 308 | )); |
| 309 | } |
| 310 | |
| 311 | /** |
| 312 | * Execute elFinder command and output result |
| 313 | * |
| 314 | * @return void |
| 315 | * @throws Exception |
| 316 | * @author Dmitry (dio) Levashov |
| 317 | */ |
| 318 | public function run() |
| 319 | { |
| 320 | $isPost = $this->reqMethod === 'POST'; |
| 321 | $src = $isPost ? array_merge($_GET, $_POST) : $_GET; |
| 322 | $maxInputVars = (!$src || isset($src['targets'])) ? ini_get('max_input_vars') : null; |
| 323 | if ((!$src || $maxInputVars) && $rawPostData = file_get_contents('php://input')) { |
| 324 | // for max_input_vars and supports IE XDomainRequest() |
| 325 | $parts = explode('&', $rawPostData); |
| 326 | if (!$src || $maxInputVars < count($parts)) { |
| 327 | $src = array(); |
| 328 | foreach ($parts as $part) { |
| 329 | list($key, $value) = array_pad(explode('=', $part), 2, ''); |
| 330 | $key = rawurldecode($key); |
| 331 | if (preg_match('/^(.+?)\[([^\[\]]*)\]$/', $key, $m)) { |
| 332 | $key = $m[1]; |
| 333 | $idx = $m[2]; |
| 334 | if (!isset($src[$key])) { |
| 335 | $src[$key] = array(); |
| 336 | } |
| 337 | if ($idx) { |
| 338 | $src[$key][$idx] = rawurldecode($value); |
| 339 | } else { |
| 340 | $src[$key][] = rawurldecode($value); |
| 341 | } |
| 342 | } else { |
| 343 | $src[$key] = rawurldecode($value); |
| 344 | } |
| 345 | } |
| 346 | $_POST = $this->input_filter($src); |
| 347 | $_REQUEST = $this->input_filter(array_merge_recursive($src, $_REQUEST)); |
| 348 | } |
| 349 | } |
| 350 | |
| 351 | if (isset($src['targets']) && $this->elFinder->maxTargets && count($src['targets']) > $this->elFinder->maxTargets) { |
| 352 | $this->output(array('error' => $this->elFinder->error(elFinder::ERROR_MAX_TARGTES))); |
| 353 | } |
| 354 | |
| 355 | $cmd = isset($src['cmd']) ? $src['cmd'] : ''; |
| 356 | $args = array(); |
| 357 | |
| 358 | if (!function_exists('json_encode')) { |
| 359 | $error = $this->elFinder->error(elFinder::ERROR_CONF, elFinder::ERROR_CONF_NO_JSON); |
| 360 | $this->output(array('error' => '{"error":["' . implode('","', $error) . '"]}', 'raw' => true)); |
| 361 | } |
| 362 | |
| 363 | if (!$this->elFinder->loaded()) { |
| 364 | $this->output(array('error' => $this->elFinder->error(elFinder::ERROR_CONF, elFinder::ERROR_CONF_NO_VOL), 'debug' => $this->elFinder->mountErrors)); |
| 365 | } |
| 366 | |
| 367 | // telepat_mode: on |
| 368 | if (!$cmd && $isPost) { |
| 369 | $this->output(array('error' => $this->elFinder->error(elFinder::ERROR_UPLOAD, elFinder::ERROR_UPLOAD_TOTAL_SIZE), 'header' => 'Content-Type: text/html')); |
| 370 | } |
| 371 | // telepat_mode: off |
| 372 | |
| 373 | if (!$this->elFinder->commandExists($cmd)) { |
| 374 | $this->output(array('error' => $this->elFinder->error(elFinder::ERROR_UNKNOWN_CMD))); |
| 375 | } |
| 376 | |
| 377 | if ($this->csrfProtectedCommand($cmd)) { |
| 378 | if (!$this->validateCsrfToken()) { |
| 379 | $this->outputCsrfError(); |
| 380 | } |
| 381 | $this->refreshCsrfTokenTtl(); |
| 382 | } |
| 383 | |
| 384 | // collect required arguments to exec command |
| 385 | $hasFiles = false; |
| 386 | foreach ($this->elFinder->commandArgsList($cmd) as $name => $req) { |
| 387 | if ($name === 'FILES') { |
| 388 | if (isset($_FILES)) { |
| 389 | $hasFiles = true; |
| 390 | } elseif ($req) { |
| 391 | $this->output(array('error' => $this->elFinder->error(elFinder::ERROR_INV_PARAMS, $cmd))); |
| 392 | } |
| 393 | } else { |
| 394 | $arg = isset($src[$name]) ? $src[$name] : ''; |
| 395 | |
| 396 | if (!is_array($arg) && $req !== '') { |
| 397 | $arg = trim($arg); |
| 398 | } |
| 399 | if ($req && $arg === '') { |
| 400 | $this->output(array('error' => $this->elFinder->error(elFinder::ERROR_INV_PARAMS, $cmd))); |
| 401 | } |
| 402 | $args[$name] = $arg; |
| 403 | } |
| 404 | } |
| 405 | |
| 406 | $args['debug'] = isset($src['debug']) ? !!$src['debug'] : false; |
| 407 | |
| 408 | $args = $this->input_filter($args); |
| 409 | if ($hasFiles) { |
| 410 | $args['FILES'] = $_FILES; |
| 411 | } |
| 412 | |
| 413 | try { |
| 414 | $result = $this->elFinder->exec($cmd, $args); |
| 415 | if (is_array($result) && !isset($result['error'])) { |
| 416 | if ($this->shouldIssueCsrfToken($cmd, $src)) { |
| 417 | $result[self::$csrfResponseKey] = $this->issueCsrfToken(); |
| 418 | } else if ($this->shouldRefreshCsrfToken($cmd, $src)) { |
| 419 | $this->refreshCsrfTokenTtl(); |
| 420 | } |
| 421 | } |
| 422 | $this->output($result); |
| 423 | } catch (elFinderAbortException $e) { |
| 424 | // connection aborted |
| 425 | // unlock session data for multiple access |
| 426 | $this->elFinder->getSession()->close(); |
| 427 | // HTTP response code |
| 428 | header('HTTP/1.0 204 No Content'); |
| 429 | // clear output buffer |
| 430 | while (ob_get_level() && ob_end_clean()) { |
| 431 | } |
| 432 | exit(); |
| 433 | } |
| 434 | } |
| 435 | |
| 436 | /** |
| 437 | * Sets the header. |
| 438 | * |
| 439 | * @param array|string $value HTTP header(s) |
| 440 | */ |
| 441 | public function setHeader($value) |
| 442 | { |
| 443 | $this->header = $value; |
| 444 | } |
| 445 | |
| 446 | /** |
| 447 | * Output json |
| 448 | * |
| 449 | * @param array data to output |
| 450 | * |
| 451 | * @return void |
| 452 | * @throws elFinderAbortException |
| 453 | * @author Dmitry (dio) Levashov |
| 454 | */ |
| 455 | protected function output(array $data) |
| 456 | { |
| 457 | // unlock session data for multiple access |
| 458 | $this->elFinder->getSession()->close(); |
| 459 | // client disconnect should abort |
| 460 | ignore_user_abort(false); |
| 461 | |
| 462 | if ($this->header) { |
| 463 | self::sendHeader($this->header); |
| 464 | } |
| 465 | |
| 466 | if (isset($data['pointer'])) { |
| 467 | // set time limit to 0 |
| 468 | elFinder::extendTimeLimit(0); |
| 469 | |
| 470 | // send optional header |
| 471 | if (!empty($data['header'])) { |
| 472 | self::sendHeader($data['header']); |
| 473 | } |
| 474 | |
| 475 | // clear output buffer |
| 476 | while (ob_get_level() && ob_end_clean()) { |
| 477 | } |
| 478 | |
| 479 | $toEnd = true; |
| 480 | $fp = $data['pointer']; |
| 481 | $sendData = !($this->reqMethod === 'HEAD' || !empty($data['info']['xsendfile'])); |
| 482 | $psize = null; |
| 483 | if (($this->reqMethod === 'GET' || !$sendData) |
| 484 | && (elFinder::isSeekableStream($fp) || elFinder::isSeekableUrl($fp)) |
| 485 | && (array_search('Accept-Ranges: none', headers_list()) === false)) { |
| 486 | header('Accept-Ranges: bytes'); |
| 487 | if (!empty($_SERVER['HTTP_RANGE'])) { |
| 488 | $size = $data['info']['size']; |
| 489 | $end = $size - 1; |
| 490 | if (preg_match('/bytes=(\d*)-(\d*)(,?)/i', $_SERVER['HTTP_RANGE'], $matches)) { |
| 491 | if (empty($matches[3])) { |
| 492 | if (empty($matches[1]) && $matches[1] !== '0') { |
| 493 | $start = $size - $matches[2]; |
| 494 | } else { |
| 495 | $start = intval($matches[1]); |
| 496 | if (!empty($matches[2])) { |
| 497 | $end = intval($matches[2]); |
| 498 | if ($end >= $size) { |
| 499 | $end = $size - 1; |
| 500 | } |
| 501 | $toEnd = ($end == ($size - 1)); |
| 502 | } |
| 503 | } |
| 504 | $psize = $end - $start + 1; |
| 505 | |
| 506 | header('HTTP/1.1 206 Partial Content'); |
| 507 | header('Content-Length: ' . $psize); |
| 508 | header('Content-Range: bytes ' . $start . '-' . $end . '/' . $size); |
| 509 | |
| 510 | // Apache mod_xsendfile dose not support range request |
| 511 | if (isset($data['info']['xsendfile']) && strtolower($data['info']['xsendfile']) === 'x-sendfile') { |
| 512 | if (function_exists('header_remove')) { |
| 513 | header_remove($data['info']['xsendfile']); |
| 514 | } else { |
| 515 | header($data['info']['xsendfile'] . ':'); |
| 516 | } |
| 517 | unset($data['info']['xsendfile']); |
| 518 | if ($this->reqMethod !== 'HEAD') { |
| 519 | $sendData = true; |
| 520 | } |
| 521 | } |
| 522 | |
| 523 | $sendData && !elFinder::isSeekableUrl($fp) && fseek($fp, $start); |
| 524 | } |
| 525 | } |
| 526 | } |
| 527 | if ($sendData && is_null($psize)) { |
| 528 | elFinder::rewind($fp); |
| 529 | } |
| 530 | } else { |
| 531 | header('Accept-Ranges: none'); |
| 532 | if (isset($data['info']) && !$data['info']['size']) { |
| 533 | if (function_exists('header_remove')) { |
| 534 | header_remove('Content-Length'); |
| 535 | } else { |
| 536 | header('Content-Length:'); |
| 537 | } |
| 538 | } |
| 539 | } |
| 540 | |
| 541 | if ($sendData) { |
| 542 | if ($toEnd || elFinder::isSeekableUrl($fp)) { |
| 543 | // PHP < 5.6 has a bug of fpassthru |
| 544 | // see https://bugs.php.net/bug.php?id=66736 |
| 545 | if (version_compare(PHP_VERSION, '5.6', '<')) { |
| 546 | file_put_contents('php://output', $fp); |
| 547 | } else { |
| 548 | fpassthru($fp); |
| 549 | } |
| 550 | } else { |
| 551 | $out = fopen('php://output', 'wb'); |
| 552 | stream_copy_to_stream($fp, $out, $psize); |
| 553 | fclose($out); |
| 554 | } |
| 555 | } |
| 556 | |
| 557 | if (!empty($data['volume'])) { |
| 558 | $data['volume']->close($fp, $data['info']['hash']); |
| 559 | } else { |
| 560 | fclose($fp); |
| 561 | } |
| 562 | exit(); |
| 563 | } else { |
| 564 | self::outputJson($data); |
| 565 | exit(0); |
| 566 | } |
| 567 | } |
| 568 | |
| 569 | /** |
| 570 | * Remove null & stripslashes applies on "magic_quotes_gpc" |
| 571 | * |
| 572 | * @param mixed $args |
| 573 | * |
| 574 | * @return mixed |
| 575 | * @author Naoki Sawada |
| 576 | */ |
| 577 | protected function input_filter($args) |
| 578 | { |
| 579 | static $magic_quotes_gpc = NULL; |
| 580 | |
| 581 | if ($magic_quotes_gpc === NULL) |
| 582 | $magic_quotes_gpc = (version_compare(PHP_VERSION, '5.4', '<') && get_magic_quotes_gpc()); |
| 583 | |
| 584 | if (is_array($args)) { |
| 585 | return array_map(array(& $this, 'input_filter'), $args); |
| 586 | } |
| 587 | $res = str_replace("\0", '', $args); |
| 588 | $magic_quotes_gpc && ($res = stripslashes($res)); |
| 589 | return $res; |
| 590 | } |
| 591 | |
| 592 | /** |
| 593 | * Send HTTP header |
| 594 | * |
| 595 | * @param string|array $header optional header |
| 596 | */ |
| 597 | protected static function sendHeader($header = null) |
| 598 | { |
| 599 | if ($header) { |
| 600 | if (is_array($header)) { |
| 601 | foreach ($header as $h) { |
| 602 | header($h); |
| 603 | } |
| 604 | } else { |
| 605 | header($header); |
| 606 | } |
| 607 | } |
| 608 | } |
| 609 | |
| 610 | /** |
| 611 | * Output JSON |
| 612 | * |
| 613 | * @param array $data |
| 614 | */ |
| 615 | public static function outputJson($data) |
| 616 | { |
| 617 | // send header |
| 618 | $header = isset($data['header']) ? $data['header'] : self::$contentType; |
| 619 | self::sendHeader($header); |
| 620 | |
| 621 | unset($data['header']); |
| 622 | |
| 623 | if (!empty($data['raw']) && isset($data['error'])) { |
| 624 | $out = $data['error']; |
| 625 | } else { |
| 626 | if (isset($data['debug']) && isset($data['debug']['backendErrors'])) { |
| 627 | $data['debug']['backendErrors'] = array_merge($data['debug']['backendErrors'], elFinder::$phpErrors); |
| 628 | } |
| 629 | $out = json_encode($data); |
| 630 | } |
| 631 | |
| 632 | // clear output buffer |
| 633 | while (ob_get_level() && ob_end_clean()) { |
| 634 | } |
| 635 | |
| 636 | header('Content-Length: ' . strlen($out)); |
| 637 | |
| 638 | echo $out; |
| 639 | |
| 640 | flush(); |
| 641 | } |
| 642 | }// END class |
| 643 |