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base.php 38 KB

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  1. <?php
  2. declare(strict_types=1);
  3. /**
  4. * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  5. * SPDX-FileCopyrightText: 2013-2016 ownCloud, Inc.
  6. * SPDX-License-Identifier: AGPL-3.0-only
  7. */
  8. use OC\Encryption\HookManager;
  9. use OC\Share20\Hooks;
  10. use OCP\EventDispatcher\IEventDispatcher;
  11. use OCP\Group\Events\UserRemovedEvent;
  12. use OCP\ILogger;
  13. use OCP\IRequest;
  14. use OCP\IURLGenerator;
  15. use OCP\IUserSession;
  16. use OCP\Security\Bruteforce\IThrottler;
  17. use OCP\Server;
  18. use OCP\Share;
  19. use OCP\User\Events\UserChangedEvent;
  20. use Psr\Log\LoggerInterface;
  21. use Symfony\Component\Routing\Exception\MethodNotAllowedException;
  22. use function OCP\Log\logger;
  23. require_once 'public/Constants.php';
  24. /**
  25. * Class that is a namespace for all global OC variables
  26. * No, we can not put this class in its own file because it is used by
  27. * OC_autoload!
  28. */
  29. class OC {
  30. /**
  31. * Associative array for autoloading. classname => filename
  32. */
  33. public static array $CLASSPATH = [];
  34. /**
  35. * The installation path for Nextcloud on the server (e.g. /srv/http/nextcloud)
  36. */
  37. public static string $SERVERROOT = '';
  38. /**
  39. * the current request path relative to the Nextcloud root (e.g. files/index.php)
  40. */
  41. private static string $SUBURI = '';
  42. /**
  43. * the Nextcloud root path for http requests (e.g. nextcloud/)
  44. */
  45. public static string $WEBROOT = '';
  46. /**
  47. * The installation path array of the apps folder on the server (e.g. /srv/http/nextcloud) 'path' and
  48. * web path in 'url'
  49. */
  50. public static array $APPSROOTS = [];
  51. public static string $configDir;
  52. /**
  53. * requested app
  54. */
  55. public static string $REQUESTEDAPP = '';
  56. /**
  57. * check if Nextcloud runs in cli mode
  58. */
  59. public static bool $CLI = false;
  60. public static \OC\Autoloader $loader;
  61. public static \Composer\Autoload\ClassLoader $composerAutoloader;
  62. public static \OC\Server $server;
  63. private static \OC\Config $config;
  64. /**
  65. * @throws \RuntimeException when the 3rdparty directory is missing or
  66. * the app path list is empty or contains an invalid path
  67. */
  68. public static function initPaths(): void {
  69. if (defined('PHPUNIT_CONFIG_DIR')) {
  70. self::$configDir = OC::$SERVERROOT . '/' . PHPUNIT_CONFIG_DIR . '/';
  71. } elseif (defined('PHPUNIT_RUN') and PHPUNIT_RUN and is_dir(OC::$SERVERROOT . '/tests/config/')) {
  72. self::$configDir = OC::$SERVERROOT . '/tests/config/';
  73. } elseif ($dir = getenv('NEXTCLOUD_CONFIG_DIR')) {
  74. self::$configDir = rtrim($dir, '/') . '/';
  75. } else {
  76. self::$configDir = OC::$SERVERROOT . '/config/';
  77. }
  78. self::$config = new \OC\Config(self::$configDir);
  79. OC::$SUBURI = str_replace("\\", "/", substr(realpath($_SERVER["SCRIPT_FILENAME"] ?? ''), strlen(OC::$SERVERROOT)));
  80. /**
  81. * FIXME: The following lines are required because we can't yet instantiate
  82. * Server::get(\OCP\IRequest::class) since \OC::$server does not yet exist.
  83. */
  84. $params = [
  85. 'server' => [
  86. 'SCRIPT_NAME' => $_SERVER['SCRIPT_NAME'] ?? null,
  87. 'SCRIPT_FILENAME' => $_SERVER['SCRIPT_FILENAME'] ?? null,
  88. ],
  89. ];
  90. if (isset($_SERVER['REMOTE_ADDR'])) {
  91. $params['server']['REMOTE_ADDR'] = $_SERVER['REMOTE_ADDR'];
  92. }
  93. $fakeRequest = new \OC\AppFramework\Http\Request(
  94. $params,
  95. new \OC\AppFramework\Http\RequestId($_SERVER['UNIQUE_ID'] ?? '', new \OC\Security\SecureRandom()),
  96. new \OC\AllConfig(new \OC\SystemConfig(self::$config))
  97. );
  98. $scriptName = $fakeRequest->getScriptName();
  99. if (substr($scriptName, -1) == '/') {
  100. $scriptName .= 'index.php';
  101. //make sure suburi follows the same rules as scriptName
  102. if (substr(OC::$SUBURI, -9) != 'index.php') {
  103. if (substr(OC::$SUBURI, -1) != '/') {
  104. OC::$SUBURI = OC::$SUBURI . '/';
  105. }
  106. OC::$SUBURI = OC::$SUBURI . 'index.php';
  107. }
  108. }
  109. if (OC::$CLI) {
  110. OC::$WEBROOT = self::$config->getValue('overwritewebroot', '');
  111. } else {
  112. if (substr($scriptName, 0 - strlen(OC::$SUBURI)) === OC::$SUBURI) {
  113. OC::$WEBROOT = substr($scriptName, 0, 0 - strlen(OC::$SUBURI));
  114. if (OC::$WEBROOT != '' && OC::$WEBROOT[0] !== '/') {
  115. OC::$WEBROOT = '/' . OC::$WEBROOT;
  116. }
  117. } else {
  118. // The scriptName is not ending with OC::$SUBURI
  119. // This most likely means that we are calling from CLI.
  120. // However some cron jobs still need to generate
  121. // a web URL, so we use overwritewebroot as a fallback.
  122. OC::$WEBROOT = self::$config->getValue('overwritewebroot', '');
  123. }
  124. // Resolve /nextcloud to /nextcloud/ to ensure to always have a trailing
  125. // slash which is required by URL generation.
  126. if (isset($_SERVER['REQUEST_URI']) && $_SERVER['REQUEST_URI'] === \OC::$WEBROOT &&
  127. substr($_SERVER['REQUEST_URI'], -1) !== '/') {
  128. header('Location: '.\OC::$WEBROOT.'/');
  129. exit();
  130. }
  131. }
  132. // search the apps folder
  133. $config_paths = self::$config->getValue('apps_paths', []);
  134. if (!empty($config_paths)) {
  135. foreach ($config_paths as $paths) {
  136. if (isset($paths['url']) && isset($paths['path'])) {
  137. $paths['url'] = rtrim($paths['url'], '/');
  138. $paths['path'] = rtrim($paths['path'], '/');
  139. OC::$APPSROOTS[] = $paths;
  140. }
  141. }
  142. } elseif (file_exists(OC::$SERVERROOT . '/apps')) {
  143. OC::$APPSROOTS[] = ['path' => OC::$SERVERROOT . '/apps', 'url' => '/apps', 'writable' => true];
  144. }
  145. if (empty(OC::$APPSROOTS)) {
  146. throw new \RuntimeException('apps directory not found! Please put the Nextcloud apps folder in the Nextcloud folder'
  147. . '. You can also configure the location in the config.php file.');
  148. }
  149. $paths = [];
  150. foreach (OC::$APPSROOTS as $path) {
  151. $paths[] = $path['path'];
  152. if (!is_dir($path['path'])) {
  153. throw new \RuntimeException(sprintf('App directory "%s" not found! Please put the Nextcloud apps folder in the'
  154. . ' Nextcloud folder. You can also configure the location in the config.php file.', $path['path']));
  155. }
  156. }
  157. // set the right include path
  158. set_include_path(
  159. implode(PATH_SEPARATOR, $paths)
  160. );
  161. }
  162. public static function checkConfig(): void {
  163. $l = Server::get(\OCP\L10N\IFactory::class)->get('lib');
  164. // Create config if it does not already exist
  165. $configFilePath = self::$configDir .'/config.php';
  166. if (!file_exists($configFilePath)) {
  167. @touch($configFilePath);
  168. }
  169. // Check if config is writable
  170. $configFileWritable = is_writable($configFilePath);
  171. if (!$configFileWritable && !OC_Helper::isReadOnlyConfigEnabled()
  172. || !$configFileWritable && \OCP\Util::needUpgrade()) {
  173. $urlGenerator = Server::get(IURLGenerator::class);
  174. if (self::$CLI) {
  175. echo $l->t('Cannot write into "config" directory!')."\n";
  176. echo $l->t('This can usually be fixed by giving the web server write access to the config directory.')."\n";
  177. echo "\n";
  178. echo $l->t('But, if you prefer to keep config.php file read only, set the option "config_is_read_only" to true in it.')."\n";
  179. echo $l->t('See %s', [ $urlGenerator->linkToDocs('admin-config') ])."\n";
  180. exit;
  181. } else {
  182. OC_Template::printErrorPage(
  183. $l->t('Cannot write into "config" directory!'),
  184. $l->t('This can usually be fixed by giving the web server write access to the config directory.') . ' '
  185. . $l->t('But, if you prefer to keep config.php file read only, set the option "config_is_read_only" to true in it.') . ' '
  186. . $l->t('See %s', [ $urlGenerator->linkToDocs('admin-config') ]),
  187. 503
  188. );
  189. }
  190. }
  191. }
  192. public static function checkInstalled(\OC\SystemConfig $systemConfig): void {
  193. if (defined('OC_CONSOLE')) {
  194. return;
  195. }
  196. // Redirect to installer if not installed
  197. if (!$systemConfig->getValue('installed', false) && OC::$SUBURI !== '/index.php' && OC::$SUBURI !== '/status.php') {
  198. if (OC::$CLI) {
  199. throw new Exception('Not installed');
  200. } else {
  201. $url = OC::$WEBROOT . '/index.php';
  202. header('Location: ' . $url);
  203. }
  204. exit();
  205. }
  206. }
  207. public static function checkMaintenanceMode(\OC\SystemConfig $systemConfig): void {
  208. // Allow ajax update script to execute without being stopped
  209. if (((bool) $systemConfig->getValue('maintenance', false)) && OC::$SUBURI != '/core/ajax/update.php') {
  210. // send http status 503
  211. http_response_code(503);
  212. header('X-Nextcloud-Maintenance-Mode: 1');
  213. header('Retry-After: 120');
  214. // render error page
  215. $template = new OC_Template('', 'update.user', 'guest');
  216. \OCP\Util::addScript('core', 'maintenance');
  217. \OCP\Util::addStyle('core', 'guest');
  218. $template->printPage();
  219. die();
  220. }
  221. }
  222. /**
  223. * Prints the upgrade page
  224. */
  225. private static function printUpgradePage(\OC\SystemConfig $systemConfig): void {
  226. $cliUpgradeLink = $systemConfig->getValue('upgrade.cli-upgrade-link', '');
  227. $disableWebUpdater = $systemConfig->getValue('upgrade.disable-web', false);
  228. $tooBig = false;
  229. if (!$disableWebUpdater) {
  230. $apps = Server::get(\OCP\App\IAppManager::class);
  231. if ($apps->isInstalled('user_ldap')) {
  232. $qb = Server::get(\OCP\IDBConnection::class)->getQueryBuilder();
  233. $result = $qb->select($qb->func()->count('*', 'user_count'))
  234. ->from('ldap_user_mapping')
  235. ->executeQuery();
  236. $row = $result->fetch();
  237. $result->closeCursor();
  238. $tooBig = ($row['user_count'] > 50);
  239. }
  240. if (!$tooBig && $apps->isInstalled('user_saml')) {
  241. $qb = Server::get(\OCP\IDBConnection::class)->getQueryBuilder();
  242. $result = $qb->select($qb->func()->count('*', 'user_count'))
  243. ->from('user_saml_users')
  244. ->executeQuery();
  245. $row = $result->fetch();
  246. $result->closeCursor();
  247. $tooBig = ($row['user_count'] > 50);
  248. }
  249. if (!$tooBig) {
  250. // count users
  251. $stats = Server::get(\OCP\IUserManager::class)->countUsers();
  252. $totalUsers = array_sum($stats);
  253. $tooBig = ($totalUsers > 50);
  254. }
  255. }
  256. $ignoreTooBigWarning = isset($_GET['IKnowThatThisIsABigInstanceAndTheUpdateRequestCouldRunIntoATimeoutAndHowToRestoreABackup']) &&
  257. $_GET['IKnowThatThisIsABigInstanceAndTheUpdateRequestCouldRunIntoATimeoutAndHowToRestoreABackup'] === 'IAmSuperSureToDoThis';
  258. if ($disableWebUpdater || ($tooBig && !$ignoreTooBigWarning)) {
  259. // send http status 503
  260. http_response_code(503);
  261. header('Retry-After: 120');
  262. // render error page
  263. $template = new OC_Template('', 'update.use-cli', 'guest');
  264. $template->assign('productName', 'nextcloud'); // for now
  265. $template->assign('version', OC_Util::getVersionString());
  266. $template->assign('tooBig', $tooBig);
  267. $template->assign('cliUpgradeLink', $cliUpgradeLink);
  268. $template->printPage();
  269. die();
  270. }
  271. // check whether this is a core update or apps update
  272. $installedVersion = $systemConfig->getValue('version', '0.0.0');
  273. $currentVersion = implode('.', \OCP\Util::getVersion());
  274. // if not a core upgrade, then it's apps upgrade
  275. $isAppsOnlyUpgrade = version_compare($currentVersion, $installedVersion, '=');
  276. $oldTheme = $systemConfig->getValue('theme');
  277. $systemConfig->setValue('theme', '');
  278. \OCP\Util::addScript('core', 'common');
  279. \OCP\Util::addScript('core', 'main');
  280. \OCP\Util::addTranslations('core');
  281. \OCP\Util::addScript('core', 'update');
  282. /** @var \OC\App\AppManager $appManager */
  283. $appManager = Server::get(\OCP\App\IAppManager::class);
  284. $tmpl = new OC_Template('', 'update.admin', 'guest');
  285. $tmpl->assign('version', OC_Util::getVersionString());
  286. $tmpl->assign('isAppsOnlyUpgrade', $isAppsOnlyUpgrade);
  287. // get third party apps
  288. $ocVersion = \OCP\Util::getVersion();
  289. $ocVersion = implode('.', $ocVersion);
  290. $incompatibleApps = $appManager->getIncompatibleApps($ocVersion);
  291. $incompatibleOverwrites = $systemConfig->getValue('app_install_overwrite', []);
  292. $incompatibleShippedApps = [];
  293. $incompatibleDisabledApps = [];
  294. foreach ($incompatibleApps as $appInfo) {
  295. if ($appManager->isShipped($appInfo['id'])) {
  296. $incompatibleShippedApps[] = $appInfo['name'] . ' (' . $appInfo['id'] . ')';
  297. }
  298. if (!in_array($appInfo['id'], $incompatibleOverwrites)) {
  299. $incompatibleDisabledApps[] = $appInfo;
  300. }
  301. }
  302. if (!empty($incompatibleShippedApps)) {
  303. $l = Server::get(\OCP\L10N\IFactory::class)->get('core');
  304. $hint = $l->t('Application %1$s is not present or has a non-compatible version with this server. Please check the apps directory.', [implode(', ', $incompatibleShippedApps)]);
  305. throw new \OCP\HintException('Application ' . implode(', ', $incompatibleShippedApps) . ' is not present or has a non-compatible version with this server. Please check the apps directory.', $hint);
  306. }
  307. $tmpl->assign('appsToUpgrade', $appManager->getAppsNeedingUpgrade($ocVersion));
  308. $tmpl->assign('incompatibleAppsList', $incompatibleDisabledApps);
  309. try {
  310. $defaults = new \OC_Defaults();
  311. $tmpl->assign('productName', $defaults->getName());
  312. } catch (Throwable $error) {
  313. $tmpl->assign('productName', 'Nextcloud');
  314. }
  315. $tmpl->assign('oldTheme', $oldTheme);
  316. $tmpl->printPage();
  317. }
  318. public static function initSession(): void {
  319. $request = Server::get(IRequest::class);
  320. // TODO: Temporary disabled again to solve issues with CalDAV/CardDAV clients like DAVx5 that use cookies
  321. // TODO: See https://github.com/nextcloud/server/issues/37277#issuecomment-1476366147 and the other comments
  322. // TODO: for further information.
  323. // $isDavRequest = strpos($request->getRequestUri(), '/remote.php/dav') === 0 || strpos($request->getRequestUri(), '/remote.php/webdav') === 0;
  324. // if ($request->getHeader('Authorization') !== '' && is_null($request->getCookie('cookie_test')) && $isDavRequest && !isset($_COOKIE['nc_session_id'])) {
  325. // setcookie('cookie_test', 'test', time() + 3600);
  326. // // Do not initialize the session if a request is authenticated directly
  327. // // unless there is a session cookie already sent along
  328. // return;
  329. // }
  330. if ($request->getServerProtocol() === 'https') {
  331. ini_set('session.cookie_secure', 'true');
  332. }
  333. // prevents javascript from accessing php session cookies
  334. ini_set('session.cookie_httponly', 'true');
  335. // set the cookie path to the Nextcloud directory
  336. $cookie_path = OC::$WEBROOT ? : '/';
  337. ini_set('session.cookie_path', $cookie_path);
  338. // Let the session name be changed in the initSession Hook
  339. $sessionName = OC_Util::getInstanceId();
  340. try {
  341. // set the session name to the instance id - which is unique
  342. $session = new \OC\Session\Internal($sessionName);
  343. $cryptoWrapper = Server::get(\OC\Session\CryptoWrapper::class);
  344. $session = $cryptoWrapper->wrapSession($session);
  345. self::$server->setSession($session);
  346. // if session can't be started break with http 500 error
  347. } catch (Exception $e) {
  348. Server::get(LoggerInterface::class)->error($e->getMessage(), ['app' => 'base','exception' => $e]);
  349. //show the user a detailed error page
  350. OC_Template::printExceptionErrorPage($e, 500);
  351. die();
  352. }
  353. //try to set the session lifetime
  354. $sessionLifeTime = self::getSessionLifeTime();
  355. // session timeout
  356. if ($session->exists('LAST_ACTIVITY') && (time() - $session->get('LAST_ACTIVITY') > $sessionLifeTime)) {
  357. if (isset($_COOKIE[session_name()])) {
  358. setcookie(session_name(), '', -1, self::$WEBROOT ? : '/');
  359. }
  360. Server::get(IUserSession::class)->logout();
  361. }
  362. if (!self::hasSessionRelaxedExpiry()) {
  363. $session->set('LAST_ACTIVITY', time());
  364. }
  365. $session->close();
  366. }
  367. private static function getSessionLifeTime(): int {
  368. return Server::get(\OC\AllConfig::class)->getSystemValueInt('session_lifetime', 60 * 60 * 24);
  369. }
  370. /**
  371. * @return bool true if the session expiry should only be done by gc instead of an explicit timeout
  372. */
  373. public static function hasSessionRelaxedExpiry(): bool {
  374. return Server::get(\OC\AllConfig::class)->getSystemValueBool('session_relaxed_expiry', false);
  375. }
  376. /**
  377. * Try to set some values to the required Nextcloud default
  378. */
  379. public static function setRequiredIniValues(): void {
  380. @ini_set('default_charset', 'UTF-8');
  381. @ini_set('gd.jpeg_ignore_warning', '1');
  382. }
  383. /**
  384. * Send the same site cookies
  385. */
  386. private static function sendSameSiteCookies(): void {
  387. $cookieParams = session_get_cookie_params();
  388. $secureCookie = ($cookieParams['secure'] === true) ? 'secure; ' : '';
  389. $policies = [
  390. 'lax',
  391. 'strict',
  392. ];
  393. // Append __Host to the cookie if it meets the requirements
  394. $cookiePrefix = '';
  395. if ($cookieParams['secure'] === true && $cookieParams['path'] === '/') {
  396. $cookiePrefix = '__Host-';
  397. }
  398. foreach ($policies as $policy) {
  399. header(
  400. sprintf(
  401. 'Set-Cookie: %snc_sameSiteCookie%s=true; path=%s; httponly;' . $secureCookie . 'expires=Fri, 31-Dec-2100 23:59:59 GMT; SameSite=%s',
  402. $cookiePrefix,
  403. $policy,
  404. $cookieParams['path'],
  405. $policy
  406. ),
  407. false
  408. );
  409. }
  410. }
  411. /**
  412. * Same Site cookie to further mitigate CSRF attacks. This cookie has to
  413. * be set in every request if cookies are sent to add a second level of
  414. * defense against CSRF.
  415. *
  416. * If the cookie is not sent this will set the cookie and reload the page.
  417. * We use an additional cookie since we want to protect logout CSRF and
  418. * also we can't directly interfere with PHP's session mechanism.
  419. */
  420. private static function performSameSiteCookieProtection(\OCP\IConfig $config): void {
  421. $request = Server::get(IRequest::class);
  422. // Some user agents are notorious and don't really properly follow HTTP
  423. // specifications. For those, have an automated opt-out. Since the protection
  424. // for remote.php is applied in base.php as starting point we need to opt out
  425. // here.
  426. $incompatibleUserAgents = $config->getSystemValue('csrf.optout');
  427. // Fallback, if csrf.optout is unset
  428. if (!is_array($incompatibleUserAgents)) {
  429. $incompatibleUserAgents = [
  430. // OS X Finder
  431. '/^WebDAVFS/',
  432. // Windows webdav drive
  433. '/^Microsoft-WebDAV-MiniRedir/',
  434. ];
  435. }
  436. if ($request->isUserAgent($incompatibleUserAgents)) {
  437. return;
  438. }
  439. if (count($_COOKIE) > 0) {
  440. $requestUri = $request->getScriptName();
  441. $processingScript = explode('/', $requestUri);
  442. $processingScript = $processingScript[count($processingScript) - 1];
  443. // index.php routes are handled in the middleware
  444. if ($processingScript === 'index.php') {
  445. return;
  446. }
  447. // All other endpoints require the lax and the strict cookie
  448. if (!$request->passesStrictCookieCheck()) {
  449. logger('core')->warning('Request does not pass strict cookie check');
  450. self::sendSameSiteCookies();
  451. // Debug mode gets access to the resources without strict cookie
  452. // due to the fact that the SabreDAV browser also lives there.
  453. if (!$config->getSystemValueBool('debug', false)) {
  454. http_response_code(\OCP\AppFramework\Http::STATUS_PRECONDITION_FAILED);
  455. header('Content-Type: application/json');
  456. echo json_encode(['error' => 'Strict Cookie has not been found in request']);
  457. exit();
  458. }
  459. }
  460. } elseif (!isset($_COOKIE['nc_sameSiteCookielax']) || !isset($_COOKIE['nc_sameSiteCookiestrict'])) {
  461. self::sendSameSiteCookies();
  462. }
  463. }
  464. public static function init(): void {
  465. // prevent any XML processing from loading external entities
  466. libxml_set_external_entity_loader(static function () {
  467. return null;
  468. });
  469. // calculate the root directories
  470. OC::$SERVERROOT = str_replace("\\", '/', substr(__DIR__, 0, -4));
  471. // register autoloader
  472. $loaderStart = microtime(true);
  473. require_once __DIR__ . '/autoloader.php';
  474. self::$loader = new \OC\Autoloader([
  475. OC::$SERVERROOT . '/lib/private/legacy',
  476. ]);
  477. if (defined('PHPUNIT_RUN')) {
  478. self::$loader->addValidRoot(OC::$SERVERROOT . '/tests');
  479. }
  480. spl_autoload_register([self::$loader, 'load']);
  481. $loaderEnd = microtime(true);
  482. self::$CLI = (php_sapi_name() == 'cli');
  483. // Add default composer PSR-4 autoloader, ensure apcu to be disabled
  484. self::$composerAutoloader = require_once OC::$SERVERROOT . '/lib/composer/autoload.php';
  485. self::$composerAutoloader->setApcuPrefix(null);
  486. try {
  487. self::initPaths();
  488. // setup 3rdparty autoloader
  489. $vendorAutoLoad = OC::$SERVERROOT. '/3rdparty/autoload.php';
  490. if (!file_exists($vendorAutoLoad)) {
  491. throw new \RuntimeException('Composer autoloader not found, unable to continue. Check the folder "3rdparty". Running "git submodule update --init" will initialize the git submodule that handles the subfolder "3rdparty".');
  492. }
  493. require_once $vendorAutoLoad;
  494. } catch (\RuntimeException $e) {
  495. if (!self::$CLI) {
  496. http_response_code(503);
  497. }
  498. // we can't use the template error page here, because this needs the
  499. // DI container which isn't available yet
  500. print($e->getMessage());
  501. exit();
  502. }
  503. // setup the basic server
  504. self::$server = new \OC\Server(\OC::$WEBROOT, self::$config);
  505. self::$server->boot();
  506. $eventLogger = Server::get(\OCP\Diagnostics\IEventLogger::class);
  507. $eventLogger->log('autoloader', 'Autoloader', $loaderStart, $loaderEnd);
  508. $eventLogger->start('boot', 'Initialize');
  509. // Override php.ini and log everything if we're troubleshooting
  510. if (self::$config->getValue('loglevel') === ILogger::DEBUG) {
  511. error_reporting(E_ALL);
  512. }
  513. // Don't display errors and log them
  514. @ini_set('display_errors', '0');
  515. @ini_set('log_errors', '1');
  516. if (!date_default_timezone_set('UTC')) {
  517. throw new \RuntimeException('Could not set timezone to UTC');
  518. }
  519. //try to configure php to enable big file uploads.
  520. //this doesn´t work always depending on the webserver and php configuration.
  521. //Let´s try to overwrite some defaults if they are smaller than 1 hour
  522. if (intval(@ini_get('max_execution_time') ?: 0) < 3600) {
  523. @ini_set('max_execution_time', strval(3600));
  524. }
  525. if (intval(@ini_get('max_input_time') ?: 0) < 3600) {
  526. @ini_set('max_input_time', strval(3600));
  527. }
  528. //try to set the maximum execution time to the largest time limit we have
  529. if (strpos(@ini_get('disable_functions'), 'set_time_limit') === false) {
  530. @set_time_limit(max(intval(@ini_get('max_execution_time')), intval(@ini_get('max_input_time'))));
  531. }
  532. self::setRequiredIniValues();
  533. self::handleAuthHeaders();
  534. $systemConfig = Server::get(\OC\SystemConfig::class);
  535. self::registerAutoloaderCache($systemConfig);
  536. // initialize intl fallback if necessary
  537. OC_Util::isSetLocaleWorking();
  538. $config = Server::get(\OCP\IConfig::class);
  539. if (!defined('PHPUNIT_RUN')) {
  540. $errorHandler = new OC\Log\ErrorHandler(
  541. \OCP\Server::get(\Psr\Log\LoggerInterface::class),
  542. );
  543. $exceptionHandler = [$errorHandler, 'onException'];
  544. if ($config->getSystemValueBool('debug', false)) {
  545. set_error_handler([$errorHandler, 'onAll'], E_ALL);
  546. if (\OC::$CLI) {
  547. $exceptionHandler = ['OC_Template', 'printExceptionErrorPage'];
  548. }
  549. } else {
  550. set_error_handler([$errorHandler, 'onError']);
  551. }
  552. register_shutdown_function([$errorHandler, 'onShutdown']);
  553. set_exception_handler($exceptionHandler);
  554. }
  555. /** @var \OC\AppFramework\Bootstrap\Coordinator $bootstrapCoordinator */
  556. $bootstrapCoordinator = Server::get(\OC\AppFramework\Bootstrap\Coordinator::class);
  557. $bootstrapCoordinator->runInitialRegistration();
  558. $eventLogger->start('init_session', 'Initialize session');
  559. OC_App::loadApps(['session']);
  560. if (!self::$CLI) {
  561. self::initSession();
  562. }
  563. $eventLogger->end('init_session');
  564. self::checkConfig();
  565. self::checkInstalled($systemConfig);
  566. OC_Response::addSecurityHeaders();
  567. self::performSameSiteCookieProtection($config);
  568. if (!defined('OC_CONSOLE')) {
  569. $errors = OC_Util::checkServer($systemConfig);
  570. if (count($errors) > 0) {
  571. if (!self::$CLI) {
  572. http_response_code(503);
  573. OC_Util::addStyle('guest');
  574. try {
  575. OC_Template::printGuestPage('', 'error', ['errors' => $errors]);
  576. exit;
  577. } catch (\Exception $e) {
  578. // In case any error happens when showing the error page, we simply fall back to posting the text.
  579. // This might be the case when e.g. the data directory is broken and we can not load/write SCSS to/from it.
  580. }
  581. }
  582. // Convert l10n string into regular string for usage in database
  583. $staticErrors = [];
  584. foreach ($errors as $error) {
  585. echo $error['error'] . "\n";
  586. echo $error['hint'] . "\n\n";
  587. $staticErrors[] = [
  588. 'error' => (string)$error['error'],
  589. 'hint' => (string)$error['hint'],
  590. ];
  591. }
  592. try {
  593. $config->setAppValue('core', 'cronErrors', json_encode($staticErrors));
  594. } catch (\Exception $e) {
  595. echo('Writing to database failed');
  596. }
  597. exit(1);
  598. } elseif (self::$CLI && $config->getSystemValueBool('installed', false)) {
  599. $config->deleteAppValue('core', 'cronErrors');
  600. }
  601. }
  602. // User and Groups
  603. if (!$systemConfig->getValue("installed", false)) {
  604. self::$server->getSession()->set('user_id', '');
  605. }
  606. OC_User::useBackend(new \OC\User\Database());
  607. Server::get(\OCP\IGroupManager::class)->addBackend(new \OC\Group\Database());
  608. // Subscribe to the hook
  609. \OCP\Util::connectHook(
  610. '\OCA\Files_Sharing\API\Server2Server',
  611. 'preLoginNameUsedAsUserName',
  612. '\OC\User\Database',
  613. 'preLoginNameUsedAsUserName'
  614. );
  615. //setup extra user backends
  616. if (!\OCP\Util::needUpgrade()) {
  617. OC_User::setupBackends();
  618. } else {
  619. // Run upgrades in incognito mode
  620. OC_User::setIncognitoMode(true);
  621. }
  622. self::registerCleanupHooks($systemConfig);
  623. self::registerShareHooks($systemConfig);
  624. self::registerEncryptionWrapperAndHooks();
  625. self::registerAccountHooks();
  626. self::registerResourceCollectionHooks();
  627. self::registerFileReferenceEventListener();
  628. self::registerRenderReferenceEventListener();
  629. self::registerAppRestrictionsHooks();
  630. // Make sure that the application class is not loaded before the database is setup
  631. if ($systemConfig->getValue("installed", false)) {
  632. OC_App::loadApp('settings');
  633. /* Build core application to make sure that listeners are registered */
  634. Server::get(\OC\Core\Application::class);
  635. }
  636. //make sure temporary files are cleaned up
  637. $tmpManager = Server::get(\OCP\ITempManager::class);
  638. register_shutdown_function([$tmpManager, 'clean']);
  639. $lockProvider = Server::get(\OCP\Lock\ILockingProvider::class);
  640. register_shutdown_function([$lockProvider, 'releaseAll']);
  641. // Check whether the sample configuration has been copied
  642. if ($systemConfig->getValue('copied_sample_config', false)) {
  643. $l = Server::get(\OCP\L10N\IFactory::class)->get('lib');
  644. OC_Template::printErrorPage(
  645. $l->t('Sample configuration detected'),
  646. $l->t('It has been detected that the sample configuration has been copied. This can break your installation and is unsupported. Please read the documentation before performing changes on config.php'),
  647. 503
  648. );
  649. return;
  650. }
  651. $request = Server::get(IRequest::class);
  652. $host = $request->getInsecureServerHost();
  653. /**
  654. * if the host passed in headers isn't trusted
  655. * FIXME: Should not be in here at all :see_no_evil:
  656. */
  657. if (!OC::$CLI
  658. && !Server::get(\OC\Security\TrustedDomainHelper::class)->isTrustedDomain($host)
  659. && $config->getSystemValueBool('installed', false)
  660. ) {
  661. // Allow access to CSS resources
  662. $isScssRequest = false;
  663. if (strpos($request->getPathInfo() ?: '', '/css/') === 0) {
  664. $isScssRequest = true;
  665. }
  666. if (substr($request->getRequestUri(), -11) === '/status.php') {
  667. http_response_code(400);
  668. header('Content-Type: application/json');
  669. echo '{"error": "Trusted domain error.", "code": 15}';
  670. exit();
  671. }
  672. if (!$isScssRequest) {
  673. http_response_code(400);
  674. Server::get(LoggerInterface::class)->info(
  675. 'Trusted domain error. "{remoteAddress}" tried to access using "{host}" as host.',
  676. [
  677. 'app' => 'core',
  678. 'remoteAddress' => $request->getRemoteAddress(),
  679. 'host' => $host,
  680. ]
  681. );
  682. $tmpl = new OCP\Template('core', 'untrustedDomain', 'guest');
  683. $tmpl->assign('docUrl', Server::get(IURLGenerator::class)->linkToDocs('admin-trusted-domains'));
  684. $tmpl->printPage();
  685. exit();
  686. }
  687. }
  688. $eventLogger->end('boot');
  689. $eventLogger->log('init', 'OC::init', $loaderStart, microtime(true));
  690. $eventLogger->start('runtime', 'Runtime');
  691. $eventLogger->start('request', 'Full request after boot');
  692. register_shutdown_function(function () use ($eventLogger) {
  693. $eventLogger->end('request');
  694. });
  695. }
  696. /**
  697. * register hooks for the cleanup of cache and bruteforce protection
  698. */
  699. public static function registerCleanupHooks(\OC\SystemConfig $systemConfig): void {
  700. //don't try to do this before we are properly setup
  701. if ($systemConfig->getValue('installed', false) && !\OCP\Util::needUpgrade()) {
  702. // NOTE: This will be replaced to use OCP
  703. $userSession = Server::get(\OC\User\Session::class);
  704. $userSession->listen('\OC\User', 'postLogin', function () use ($userSession) {
  705. if (!defined('PHPUNIT_RUN') && $userSession->isLoggedIn()) {
  706. // reset brute force delay for this IP address and username
  707. $uid = $userSession->getUser()->getUID();
  708. $request = Server::get(IRequest::class);
  709. $throttler = Server::get(IThrottler::class);
  710. $throttler->resetDelay($request->getRemoteAddress(), 'login', ['user' => $uid]);
  711. }
  712. try {
  713. $cache = new \OC\Cache\File();
  714. $cache->gc();
  715. } catch (\OC\ServerNotAvailableException $e) {
  716. // not a GC exception, pass it on
  717. throw $e;
  718. } catch (\OC\ForbiddenException $e) {
  719. // filesystem blocked for this request, ignore
  720. } catch (\Exception $e) {
  721. // a GC exception should not prevent users from using OC,
  722. // so log the exception
  723. Server::get(LoggerInterface::class)->warning('Exception when running cache gc.', [
  724. 'app' => 'core',
  725. 'exception' => $e,
  726. ]);
  727. }
  728. });
  729. }
  730. }
  731. private static function registerEncryptionWrapperAndHooks(): void {
  732. $manager = Server::get(\OCP\Encryption\IManager::class);
  733. \OCP\Util::connectHook('OC_Filesystem', 'preSetup', $manager, 'setupStorage');
  734. $enabled = $manager->isEnabled();
  735. if ($enabled) {
  736. \OCP\Util::connectHook(Share::class, 'post_shared', HookManager::class, 'postShared');
  737. \OCP\Util::connectHook(Share::class, 'post_unshare', HookManager::class, 'postUnshared');
  738. \OCP\Util::connectHook('OC_Filesystem', 'post_rename', HookManager::class, 'postRename');
  739. \OCP\Util::connectHook('\OCA\Files_Trashbin\Trashbin', 'post_restore', HookManager::class, 'postRestore');
  740. }
  741. }
  742. private static function registerAccountHooks(): void {
  743. /** @var IEventDispatcher $dispatcher */
  744. $dispatcher = Server::get(IEventDispatcher::class);
  745. $dispatcher->addServiceListener(UserChangedEvent::class, \OC\Accounts\Hooks::class);
  746. }
  747. private static function registerAppRestrictionsHooks(): void {
  748. /** @var \OC\Group\Manager $groupManager */
  749. $groupManager = Server::get(\OCP\IGroupManager::class);
  750. $groupManager->listen('\OC\Group', 'postDelete', function (\OCP\IGroup $group) {
  751. $appManager = Server::get(\OCP\App\IAppManager::class);
  752. $apps = $appManager->getEnabledAppsForGroup($group);
  753. foreach ($apps as $appId) {
  754. $restrictions = $appManager->getAppRestriction($appId);
  755. if (empty($restrictions)) {
  756. continue;
  757. }
  758. $key = array_search($group->getGID(), $restrictions);
  759. unset($restrictions[$key]);
  760. $restrictions = array_values($restrictions);
  761. if (empty($restrictions)) {
  762. $appManager->disableApp($appId);
  763. } else {
  764. $appManager->enableAppForGroups($appId, $restrictions);
  765. }
  766. }
  767. });
  768. }
  769. private static function registerResourceCollectionHooks(): void {
  770. \OC\Collaboration\Resources\Listener::register(Server::get(IEventDispatcher::class));
  771. }
  772. private static function registerFileReferenceEventListener(): void {
  773. \OC\Collaboration\Reference\File\FileReferenceEventListener::register(Server::get(IEventDispatcher::class));
  774. }
  775. private static function registerRenderReferenceEventListener() {
  776. \OC\Collaboration\Reference\RenderReferenceEventListener::register(Server::get(IEventDispatcher::class));
  777. }
  778. /**
  779. * register hooks for sharing
  780. */
  781. public static function registerShareHooks(\OC\SystemConfig $systemConfig): void {
  782. if ($systemConfig->getValue('installed')) {
  783. OC_Hook::connect('OC_User', 'post_deleteUser', Hooks::class, 'post_deleteUser');
  784. OC_Hook::connect('OC_User', 'post_deleteGroup', Hooks::class, 'post_deleteGroup');
  785. /** @var IEventDispatcher $dispatcher */
  786. $dispatcher = Server::get(IEventDispatcher::class);
  787. $dispatcher->addServiceListener(UserRemovedEvent::class, \OC\Share20\UserRemovedListener::class);
  788. }
  789. }
  790. protected static function registerAutoloaderCache(\OC\SystemConfig $systemConfig): void {
  791. // The class loader takes an optional low-latency cache, which MUST be
  792. // namespaced. The instanceid is used for namespacing, but might be
  793. // unavailable at this point. Furthermore, it might not be possible to
  794. // generate an instanceid via \OC_Util::getInstanceId() because the
  795. // config file may not be writable. As such, we only register a class
  796. // loader cache if instanceid is available without trying to create one.
  797. $instanceId = $systemConfig->getValue('instanceid', null);
  798. if ($instanceId) {
  799. try {
  800. $memcacheFactory = Server::get(\OCP\ICacheFactory::class);
  801. self::$loader->setMemoryCache($memcacheFactory->createLocal('Autoloader'));
  802. } catch (\Exception $ex) {
  803. }
  804. }
  805. }
  806. /**
  807. * Handle the request
  808. */
  809. public static function handleRequest(): void {
  810. Server::get(\OCP\Diagnostics\IEventLogger::class)->start('handle_request', 'Handle request');
  811. $systemConfig = Server::get(\OC\SystemConfig::class);
  812. // Check if Nextcloud is installed or in maintenance (update) mode
  813. if (!$systemConfig->getValue('installed', false)) {
  814. \OC::$server->getSession()->clear();
  815. $controller = Server::get(\OC\Core\Controller\SetupController::class);
  816. $controller->run($_POST);
  817. exit();
  818. }
  819. $request = Server::get(IRequest::class);
  820. $requestPath = $request->getRawPathInfo();
  821. if ($requestPath === '/heartbeat') {
  822. return;
  823. }
  824. if (substr($requestPath, -3) !== '.js') { // we need these files during the upgrade
  825. self::checkMaintenanceMode($systemConfig);
  826. if (\OCP\Util::needUpgrade()) {
  827. if (function_exists('opcache_reset')) {
  828. opcache_reset();
  829. }
  830. if (!((bool) $systemConfig->getValue('maintenance', false))) {
  831. self::printUpgradePage($systemConfig);
  832. exit();
  833. }
  834. }
  835. }
  836. // Always load authentication apps
  837. OC_App::loadApps(['authentication']);
  838. OC_App::loadApps(['extended_authentication']);
  839. // Load minimum set of apps
  840. if (!\OCP\Util::needUpgrade()
  841. && !((bool) $systemConfig->getValue('maintenance', false))) {
  842. // For logged-in users: Load everything
  843. if (Server::get(IUserSession::class)->isLoggedIn()) {
  844. OC_App::loadApps();
  845. } else {
  846. // For guests: Load only filesystem and logging
  847. OC_App::loadApps(['filesystem', 'logging']);
  848. // Don't try to login when a client is trying to get a OAuth token.
  849. // OAuth needs to support basic auth too, so the login is not valid
  850. // inside Nextcloud and the Login exception would ruin it.
  851. if ($request->getRawPathInfo() !== '/apps/oauth2/api/v1/token') {
  852. self::handleLogin($request);
  853. }
  854. }
  855. }
  856. if (!self::$CLI) {
  857. try {
  858. if (!((bool) $systemConfig->getValue('maintenance', false)) && !\OCP\Util::needUpgrade()) {
  859. OC_App::loadApps(['filesystem', 'logging']);
  860. OC_App::loadApps();
  861. }
  862. Server::get(\OC\Route\Router::class)->match($request->getRawPathInfo());
  863. return;
  864. } catch (Symfony\Component\Routing\Exception\ResourceNotFoundException $e) {
  865. //header('HTTP/1.0 404 Not Found');
  866. } catch (Symfony\Component\Routing\Exception\MethodNotAllowedException $e) {
  867. http_response_code(405);
  868. return;
  869. }
  870. }
  871. // Handle WebDAV
  872. if (isset($_SERVER['REQUEST_METHOD']) && $_SERVER['REQUEST_METHOD'] === 'PROPFIND') {
  873. // not allowed any more to prevent people
  874. // mounting this root directly.
  875. // Users need to mount remote.php/webdav instead.
  876. http_response_code(405);
  877. return;
  878. }
  879. // Handle requests for JSON or XML
  880. $acceptHeader = $request->getHeader('Accept');
  881. if (in_array($acceptHeader, ['application/json', 'application/xml'], true)) {
  882. http_response_code(404);
  883. return;
  884. }
  885. // Handle resources that can't be found
  886. // This prevents browsers from redirecting to the default page and then
  887. // attempting to parse HTML as CSS and similar.
  888. $destinationHeader = $request->getHeader('Sec-Fetch-Dest');
  889. if (in_array($destinationHeader, ['font', 'script', 'style'])) {
  890. http_response_code(404);
  891. return;
  892. }
  893. // Redirect to the default app or login only as an entry point
  894. if ($requestPath === '') {
  895. // Someone is logged in
  896. if (Server::get(IUserSession::class)->isLoggedIn()) {
  897. header('Location: ' . Server::get(IURLGenerator::class)->linkToDefaultPageUrl());
  898. } else {
  899. // Not handled and not logged in
  900. header('Location: ' . Server::get(IURLGenerator::class)->linkToRouteAbsolute('core.login.showLoginForm'));
  901. }
  902. return;
  903. }
  904. try {
  905. Server::get(\OC\Route\Router::class)->match('/error/404');
  906. } catch (\Exception $e) {
  907. if (!$e instanceof MethodNotAllowedException) {
  908. logger('core')->emergency($e->getMessage(), ['exception' => $e]);
  909. }
  910. $l = Server::get(\OCP\L10N\IFactory::class)->get('lib');
  911. OC_Template::printErrorPage(
  912. '404',
  913. $l->t('The page could not be found on the server.'),
  914. 404
  915. );
  916. }
  917. }
  918. /**
  919. * Check login: apache auth, auth token, basic auth
  920. */
  921. public static function handleLogin(OCP\IRequest $request): bool {
  922. if ($request->getHeader('X-Nextcloud-Federation')) {
  923. return false;
  924. }
  925. $userSession = Server::get(\OC\User\Session::class);
  926. if (OC_User::handleApacheAuth()) {
  927. return true;
  928. }
  929. if (self::tryAppAPILogin($request)) {
  930. return true;
  931. }
  932. if ($userSession->tryTokenLogin($request)) {
  933. return true;
  934. }
  935. if (isset($_COOKIE['nc_username'])
  936. && isset($_COOKIE['nc_token'])
  937. && isset($_COOKIE['nc_session_id'])
  938. && $userSession->loginWithCookie($_COOKIE['nc_username'], $_COOKIE['nc_token'], $_COOKIE['nc_session_id'])) {
  939. return true;
  940. }
  941. if ($userSession->tryBasicAuthLogin($request, Server::get(IThrottler::class))) {
  942. return true;
  943. }
  944. return false;
  945. }
  946. protected static function handleAuthHeaders(): void {
  947. //copy http auth headers for apache+php-fcgid work around
  948. if (isset($_SERVER['HTTP_XAUTHORIZATION']) && !isset($_SERVER['HTTP_AUTHORIZATION'])) {
  949. $_SERVER['HTTP_AUTHORIZATION'] = $_SERVER['HTTP_XAUTHORIZATION'];
  950. }
  951. // Extract PHP_AUTH_USER/PHP_AUTH_PW from other headers if necessary.
  952. $vars = [
  953. 'HTTP_AUTHORIZATION', // apache+php-cgi work around
  954. 'REDIRECT_HTTP_AUTHORIZATION', // apache+php-cgi alternative
  955. ];
  956. foreach ($vars as $var) {
  957. if (isset($_SERVER[$var]) && is_string($_SERVER[$var]) && preg_match('/Basic\s+(.*)$/i', $_SERVER[$var], $matches)) {
  958. $credentials = explode(':', base64_decode($matches[1]), 2);
  959. if (count($credentials) === 2) {
  960. $_SERVER['PHP_AUTH_USER'] = $credentials[0];
  961. $_SERVER['PHP_AUTH_PW'] = $credentials[1];
  962. break;
  963. }
  964. }
  965. }
  966. }
  967. protected static function tryAppAPILogin(OCP\IRequest $request): bool {
  968. $appManager = Server::get(OCP\App\IAppManager::class);
  969. if (!$request->getHeader('AUTHORIZATION-APP-API')) {
  970. return false;
  971. }
  972. if (!$appManager->isInstalled('app_api')) {
  973. return false;
  974. }
  975. try {
  976. $appAPIService = Server::get(OCA\AppAPI\Service\AppAPIService::class);
  977. return $appAPIService->validateExAppRequestToNC($request);
  978. } catch (\Psr\Container\NotFoundExceptionInterface|\Psr\Container\ContainerExceptionInterface $e) {
  979. return false;
  980. }
  981. }
  982. }
  983. OC::init();