common.php

<?php
/**
*
* This file is part of the phpBB Forum Software package.
*
* @copyright (c) phpBB Limited <https://www.phpbb.com>
* @license GNU General Public License, version 2 (GPL-2.0)
*
* For full copyright and license information, please see
* the docs/CREDITS.txt file.
*
*/

/**
* Minimum Requirement: PHP 7.2.0
*/

if (!defined('IN_PHPBB'))
{
	exit;
}

require($phpbb_root_path . 'includes/startup.' . $phpEx);
require($phpbb_root_path . 'phpbb/class_loader.' . $phpEx);

$phpbb_class_loader = new \phpbb\class_loader('phpbb\\', "{$phpbb_root_path}phpbb/", $phpEx);
$phpbb_class_loader->register();

$phpbb_config_php_file = new \phpbb\config_php_file($phpbb_root_path, $phpEx);
extract($phpbb_config_php_file->get_all());

if (!defined('PHPBB_ENVIRONMENT'))
{
	@define('PHPBB_ENVIRONMENT', 'production');
}

if (!defined('PHPBB_INSTALLED'))
{
	// Redirect the user to the installer
	require($phpbb_root_path . 'includes/functions.' . $phpEx);

	// We have to generate a full HTTP/1.1 header here since we can't guarantee to have any of the information
	// available as used by the redirect function
	$server_name = (!empty($_SERVER['HTTP_HOST'])) ? strtolower($_SERVER['HTTP_HOST']) : ((!empty($_SERVER['SERVER_NAME'])) ? $_SERVER['SERVER_NAME'] : getenv('SERVER_NAME'));
	$server_port = (!empty($_SERVER['SERVER_PORT'])) ? (int) $_SERVER['SERVER_PORT'] : (int) getenv('SERVER_PORT');
	$secure = (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off') ? 1 : 0;

	if (!empty($_SERVER['HTTP_X_FORWARDED_PROTO']) && $_SERVER['HTTP_X_FORWARDED_PROTO'] === 'https')
	{
		$secure = 1;
		$server_port = 443;
	}

	$script_path = phpbb_get_install_redirect($phpbb_root_path, $phpEx);

	// Eliminate . and .. from the path
	require($phpbb_root_path . 'phpbb/filesystem/helper.' . $phpEx);
	$script_path = \phpbb\filesystem\helper::clean_path($script_path);

	$url = (($secure) ? 'https://' : 'http://') . $server_name;

	if ($server_port && (($secure && $server_port <> 443) || (!$secure && $server_port <> 80)))
	{
		// HTTP HOST can carry a port number...
		if (strpos($server_name, ':') === false)
		{
			$url .= ':' . $server_port;
		}
	}

	$url .= $script_path;
	header('Location: ' . $url);
	exit;
}

// In case $phpbb_adm_relative_path is not set (in case of an update), use the default.
$phpbb_adm_relative_path = (isset($phpbb_adm_relative_path)) ? $phpbb_adm_relative_path : 'adm/';
$phpbb_admin_path = (defined('PHPBB_ADMIN_PATH')) ? PHPBB_ADMIN_PATH : $phpbb_root_path . $phpbb_adm_relative_path;

// Include files
require($phpbb_root_path . 'includes/functions.' . $phpEx);
require($phpbb_root_path . 'includes/functions_content.' . $phpEx);
include($phpbb_root_path . 'includes/functions_compatibility.' . $phpEx);

require($phpbb_root_path . 'includes/constants.' . $phpEx);
require($phpbb_root_path . 'includes/utf/utf_tools.' . $phpEx);

// Registered before building the container so the development environment stay capable of intercepting
// the container builder exceptions.
\phpbb\debug\debug::enable(null, PHPBB_ENVIRONMENT === 'development');

$phpbb_class_loader_ext = new \phpbb\class_loader('\\', "{$phpbb_root_path}ext/", $phpEx);
$phpbb_class_loader_ext->register();

// Set up container
try
{
	$phpbb_container_builder = new \phpbb\di\container_builder($phpbb_root_path, $phpEx);

	// Check that cache directory is writable before trying to build container
	$cache_dir = $phpbb_container_builder->get_cache_dir();
	if (file_exists($cache_dir) && !is_writable($phpbb_container_builder->get_cache_dir()))
	{
		die('Unable to write to the cache directory path "' . $cache_dir . '". Ensure that the web server user can write to the cache folder.');
	}

	$phpbb_container = $phpbb_container_builder->with_config($phpbb_config_php_file)->get_container();
}
catch (InvalidArgumentException $e)
{
	if (PHPBB_ENVIRONMENT !== 'development')
	{
		trigger_error(
			'The requested environment ' . PHPBB_ENVIRONMENT . ' is not available.',
			E_USER_ERROR
		);
	}
	else
	{
		throw $e;
	}
}

if ($phpbb_container->getParameter('debug.error_handler'))
{
	\phpbb\debug\debug::enable();
}

$phpbb_class_loader->set_cache($phpbb_container->get('cache.driver'));
$phpbb_class_loader_ext->set_cache($phpbb_container->get('cache.driver'));

$phpbb_container->get('dbal.conn')->set_debug_sql_explain($phpbb_container->getParameter('debug.sql_explain'));
$phpbb_container->get('dbal.conn')->set_debug_load_time($phpbb_container->getParameter('debug.load_time'));

require($phpbb_root_path . 'includes/compatibility_globals.' . $phpEx);

register_compatibility_globals();

if (@is_file($phpbb_root_path . $config['exts_composer_vendor_dir'] . '/autoload.php'))
{
	require_once($phpbb_root_path . $config['exts_composer_vendor_dir'] . '/autoload.php');
}

/**
* Main event which is triggered on every page
*
* You can use this event to load function files and initiate objects
*
* NOTE:	At this point the global session ($user) and permissions ($auth)
*		do NOT exist yet. If you need to use the user object
*		(f.e. to include language files) or need to check permissions,
*		please use the core.user_setup event instead!
*
* @event core.common
* @since 3.1.0-a1
*/
$phpbb_dispatcher->trigger_event('core.common');