index.php

<?php

declare(strict_types=1);

/**
 * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
 * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
 * SPDX-License-Identifier: AGPL-3.0-only
 */

require_once __DIR__ . '/lib/versioncheck.php';

use OC\ServiceUnavailableException;
use OC\User\LoginException;
use OCP\HintException;
use OCP\IRequest;
use OCP\Security\Bruteforce\MaxDelayReached;
use OCP\Server;
use OCP\Template\ITemplateManager;
use Psr\Log\LoggerInterface;

require_once __DIR__ . '/lib/OC.php';

\OC::boot();

function cleanupStaticCrap() {
	// FIXME needed because these use a static var
	\OC_Hook::clear();
	\OC_Util::$styles = [];
	\OC_Util::$headers = [];
	\OC_User::setIncognitoMode(false);
	\OC_User::$_setupedBackends = [];
	\OC_App::reset();
	\OC_Helper::reset();
}

$handler = static function () {
	try {
		// In worker mode, script name is empty in FrankenPHP
		if ($_SERVER['SCRIPT_NAME'] === '') {
			$_SERVER['SCRIPT_NAME'] = $_SERVER['PHP_SELF'];
		}
		cleanupStaticCrap();
		OC::init();
		OC::handleRequest();
	} catch (ServiceUnavailableException $ex) {
		Server::get(LoggerInterface::class)->error($ex->getMessage(), [
			'app' => 'index',
			'exception' => $ex,
		]);

		//show the user a detailed error page
		Server::get(ITemplateManager::class)->printExceptionErrorPage($ex, 503);
	} catch (HintException $ex) {
		try {
			Server::get(ITemplateManager::class)->printErrorPage($ex->getMessage(), $ex->getHint(), 503);
		} catch (Exception $ex2) {
			try {
				Server::get(LoggerInterface::class)->error($ex->getMessage(), [
					'app' => 'index',
					'exception' => $ex,
				]);
				Server::get(LoggerInterface::class)->error($ex2->getMessage(), [
					'app' => 'index',
					'exception' => $ex2,
				]);
			} catch (Throwable $e) {
				// no way to log it properly - but to avoid a white page of death we try harder and ignore this one here
			}

			//show the user a detailed error page
			Server::get(ITemplateManager::class)->printExceptionErrorPage($ex, 500);
		}
	} catch (LoginException $ex) {
		$request = Server::get(IRequest::class);
		/**
		 * Routes with the @CORS annotation and other API endpoints should
		 * not return a webpage, so we only print the error page when html is accepted,
		 * otherwise we reply with a JSON array like the SecurityMiddleware would do.
		 */
		if (stripos($request->getHeader('Accept'), 'html') === false) {
			http_response_code(401);
			header('Content-Type: application/json; charset=utf-8');
			echo json_encode(['message' => $ex->getMessage()]);
			exit();
		}
		Server::get(ITemplateManager::class)->printErrorPage($ex->getMessage(), $ex->getMessage(), 401);
	} catch (MaxDelayReached $ex) {
		$request = Server::get(IRequest::class);
		/**
		 * Routes with the @CORS annotation and other API endpoints should
		 * not return a webpage, so we only print the error page when html is accepted,
		 * otherwise we reply with a JSON array like the BruteForceMiddleware would do.
		 */
		if (stripos($request->getHeader('Accept'), 'html') === false) {
			http_response_code(429);
			header('Content-Type: application/json; charset=utf-8');
			echo json_encode(['message' => $ex->getMessage()]);
			exit();
		}
		http_response_code(429);
		Server::get(ITemplateManager::class)->printGuestPage('core', '429');
	} catch (Exception $ex) {
		Server::get(LoggerInterface::class)->error($ex->getMessage(), [
			'app' => 'index',
			'exception' => $ex,
		]);

		//show the user a detailed error page
		Server::get(ITemplateManager::class)->printExceptionErrorPage($ex, 500);
	} catch (Error $ex) {
		try {
			Server::get(LoggerInterface::class)->error($ex->getMessage(), [
				'app' => 'index',
				'exception' => $ex,
			]);
		} catch (Error $e) {
			http_response_code(500);
			header('Content-Type: text/plain; charset=utf-8');
			print("Internal Server Error\n\n");
			print("The server encountered an internal error and was unable to complete your request.\n");
			print("Please contact the server administrator if this error reappears multiple times, please include the technical details below in your report.\n");
			print("More details can be found in the webserver log.\n");

			throw $ex;
		}
		Server::get(ITemplateManager::class)->printExceptionErrorPage($ex, 500);
	}
};

if (function_exists('frankenphp_handle_request')) {
	$maxRequests = (int)($_SERVER['MAX_REQUESTS'] ?? 0);
	for ($nbRequests = 0; !$maxRequests || $nbRequests < $maxRequests; ++$nbRequests) {
		$keepRunning = \frankenphp_handle_request($handler);

		// Call the garbage collector to reduce the chances of it being triggered in the middle of a page generation
		gc_collect_cycles();

		if (!$keepRunning) {
			break;
		}
	}
} else {
	$handler();
}