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<?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.
 *
 */
namespace phpbb\install\module\obtain_data\task;
use phpbb\install\exception\user_interaction_required_exception;
/**
 * This class requests and saves some information about the server
 */
class obtain_server_data extends \phpbb\install\task_base implements \phpbb\install\task_interface
{
    /**
     * @var \phpbb\install\helper\config
     */
    protected $install_config;
    /**
     * @var \phpbb\install\helper\iohandler\iohandler_interface
     */
    protected $io_handler;
    /**
     * Constructor
     *
     * @param \phpbb\install\helper\config                            $config        Installer's config
     * @param \phpbb\install\helper\iohandler\iohandler_interface    $iohandler    Installer's input-output handler
     */
    public function __construct(\phpbb\install\helper\config $config,
                                \phpbb\install\helper\iohandler\iohandler_interface $iohandler)
    {
        $this->install_config    = $config;
        $this->io_handler        = $iohandler;
        parent::__construct(true);
    }
    /**
     * {@inheritdoc}
     */
    public function run()
    {
        $cookie_secure = $this->io_handler->is_secure();
        $server_protocol = ($this->io_handler->is_secure()) ? 'https://' : 'http://';
        $server_port = $this->io_handler->get_server_variable('SERVER_PORT', 0);
        // HTTP_HOST is having the correct browser url in most cases...
        $server_name = strtolower(htmlspecialchars_decode($this->io_handler->get_header_variable(
            'Host',
            $this->io_handler->get_server_variable('SERVER_NAME')
        )));
        // HTTP HOST can carry a port number...
        if (strpos($server_name, ':') !== false)
        {
            $server_name = substr($server_name, 0, strpos($server_name, ':'));
        }
        $script_path = htmlspecialchars_decode($this->io_handler->get_server_variable('PHP_SELF'));
        if (!$script_path)
        {
            $script_path = htmlspecialchars_decode($this->io_handler->get_server_variable('REQUEST_URI'));
        }
        $script_path = str_replace(array('\\', '//'), '/', $script_path);
        $script_path = trim(dirname(dirname(dirname($script_path)))); // Because we are in install/app.php/route_name
        // Server data
        $cookie_secure        = $this->io_handler->get_input('cookie_secure', $cookie_secure);
        $server_protocol    = $this->io_handler->get_input('server_protocol', $server_protocol);
        $force_server_vars    = $this->io_handler->get_input('force_server_vars', 0);
        $server_name        = $this->io_handler->get_input('server_name', $server_name, true);
        $server_port        = $this->io_handler->get_input('server_port', $server_port);
        $script_path        = $this->io_handler->get_input('script_path', $script_path, true);
        // Clean up script path
        if ($script_path !== '/')
        {
            // Adjust destination path (no trailing slash)
            if (substr($script_path, -1) === '/')
            {
                $script_path = substr($script_path, 0, -1);
            }
            $script_path = str_replace(array('../', './'), '', $script_path);
            if ($script_path[0] !== '/')
            {
                $script_path = '/' . $script_path;
            }
        }
        // Check if data is sent
        if ($this->io_handler->get_input('submit_server', false))
        {
            $this->install_config->set('cookie_secure', $cookie_secure);
            $this->install_config->set('server_protocol', $server_protocol);
            $this->install_config->set('force_server_vars', $force_server_vars);
            $this->install_config->set('server_name', $server_name);
            $this->install_config->set('server_port', $server_port);
            $this->install_config->set('script_path', $script_path);
        }
        else
        {
            // Render form
            $server_form = array(
                'cookie_secure' => array(
                    'label'            => 'COOKIE_SECURE',
                    'description'    => 'COOKIE_SECURE_EXPLAIN',
                    'type'            => 'radio',
                    'options'        => array(
                        array(
                            'value'        => 0,
                            'label'        => 'NO',
                            'selected'    => (!$cookie_secure),
                        ),
                        array(
                            'value'        => 1,
                            'label'        => 'YES',
                            'selected'    => ($cookie_secure),
                        ),
                    ),
                ),
                'force_server_vars' => array(
                    'label'            => 'FORCE_SERVER_VARS',
                    'description'    => 'FORCE_SERVER_VARS_EXPLAIN',
                    'type'            => 'radio',
                    'options'        => array(
                        array(
                            'value'        => 0,
                            'label'        => 'NO',
                            'selected'    => true,
                        ),
                        array(
                            'value'        => 1,
                            'label'        => 'YES',
                            'selected'    => false,
                        ),
                    ),
                ),
                'server_protocol' => array(
                    'label'            => 'SERVER_PROTOCOL',
                    'description'    => 'SERVER_PROTOCOL_EXPLAIN',
                    'type'            => 'text',
                    'default'        => $server_protocol,
                ),
                'server_name' => array(
                    'label'            => 'SERVER_NAME',
                    'description'    => 'SERVER_NAME_EXPLAIN',
                    'type'            => 'text',
                    'default'        => $server_name,
                ),
                'server_port' => array(
                    'label'            => 'SERVER_PORT',
                    'description'    => 'SERVER_PORT_EXPLAIN',
                    'type'            => 'text',
                    'default'        => $server_port,
                ),
                'script_path' => array(
                    'label'            => 'SCRIPT_PATH',
                    'description'    => 'SCRIPT_PATH_EXPLAIN',
                    'type'            => 'text',
                    'default'        => $script_path,
                ),
                'submit_server' => array(
                    'label'    => 'SUBMIT',
                    'type'    => 'submit',
                )
            );
            $this->io_handler->add_user_form_group('SERVER_CONFIG', $server_form);
            throw new user_interaction_required_exception();
        }
    }
    /**
     * {@inheritdoc}
     */
    static public function get_step_count()
    {
        return 0;
    }
    /**
     * {@inheritdoc}
     */
    public function get_task_lang_name()
    {
        return '';
    }
}