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<?php

/**

*

* @package acp

* @version $Id$

* @copyright (c) 2005 phpBB Group

* @license http://opensource.org/licenses/gpl-license.php GNU Public License

*/

/**

* @ignore

*/

if (!defined('IN_PHPBB'))

{

        exit;

}

/**

* @package acp

*/

class acp_captcha

{

        var $u_action;

        function main($id, $mode)

        {

                global $db, $user, $auth, $template;

                global $config, $phpbb_root_path, $phpbb_admin_path, $phpEx;

                $user->add_lang('acp/board');

                include($phpbb_root_path . 'includes/captcha/captcha_factory.' . $phpEx);

                $captchas = phpbb_captcha_factory::get_captcha_types();

                $selected = request_var('select_captcha', $config['captcha_plugin']);

                $selected = (isset($captchas['available'][$selected]) || isset($captchas['unavailable'][$selected])) ? $selected : $config['captcha_plugin'];

                $configure = request_var('configure', false);

                // Oh, they are just here for the view

                if (isset($_GET['captcha_demo']))

                {

                        $this->deliver_demo($selected);

                }

                // Delegate

                if ($configure)

                {

                        $config_captcha =& phpbb_captcha_factory::get_instance($selected);

                        $config_captcha->acp_page($id, $this);

                }

                else

                {

                        $config_vars = array(

                                'enable_confirm'                => array('tpl' => 'REG_ENABLE', 'default' => false),

                                'enable_post_confirm'        => array('tpl' => 'POST_ENABLE', 'default' => false),

                                'confirm_refresh'                => array('tpl' => 'CONFIRM_REFRESH', 'default' => false),

                                'max_reg_attempts'                => array('tpl' => 'REG_LIMIT', 'default' => 0),

                                'max_login_attempts'                => array('tpl' => 'MAX_LOGIN_ATTEMPTS', 'default' => 0),

                        );

                        $this->tpl_name = 'acp_captcha';

                        $this->page_title = 'ACP_VC_SETTINGS';

                        $form_key = 'acp_captcha';

                        add_form_key($form_key);

                        $submit = request_var('main_submit', false);

                        if ($submit && check_form_key($form_key))

                        {

                                foreach ($config_vars as $config_var => $options)

                                {

                                        set_config($config_var, request_var($config_var, $options['default']));

                                }

                                if ($selected !== $config['captcha_plugin'])

                                {

                                        // sanity check

                                        if (isset($captchas['available'][$selected]))

                                        {

                                                $old_captcha =& phpbb_captcha_factory::get_instance($config['captcha_plugin']);

                                                $old_captcha->uninstall();

                                                set_config('captcha_plugin', $selected);

                                                $new_captcha =& phpbb_captcha_factory::get_instance($config['captcha_plugin']);

                                                $new_captcha->install();

                                                add_log('admin', 'LOG_CONFIG_VISUAL');

                                        }

                                        else

                                        {

                                                trigger_error($user->lang['CAPTCHA_UNAVAILABLE'] . adm_back_link($this->u_action), E_USER_WARNING);

                                        }

                                }

                                trigger_error($user->lang['CONFIG_UPDATED'] . adm_back_link($this->u_action));

                        }

                        else if ($submit)

                        {

                                trigger_error($user->lang['FORM_INVALID'] . adm_back_link($this->u_action), E_USER_WARNING);

                        }

                        else

                        {

                                $captcha_select = '';

                                foreach ($captchas['available'] as $value => $title)

                                {

                                        $current = ($selected !== false && $value == $selected) ? ' selected="selected"' : '';

                                        $captcha_select .= '<option value="' . $value . '"' . $current . '>' . $user->lang[$title] . '</option>';

                                }

                                foreach ($captchas['unavailable'] as $value => $title)

                                {

                                        $current = ($selected !== false && $value == $selected) ? ' selected="selected"' : '';

                                        $captcha_select .= '<option value="' . $value . '"' . $current . ' class="disabled-option">' . $user->lang[$title] . '</option>';

                                }

                                $demo_captcha =& phpbb_captcha_factory::get_instance($selected);

                                foreach ($config_vars as $config_var => $options)

                                {

                                        $template->assign_var($options['tpl'], (isset($_POST[$config_var])) ? request_var($config_var, $options['default']) : $config[$config_var]) ;

                                }

                                $template->assign_vars(array(

                                        'CAPTCHA_PREVIEW_TPL'        => $demo_captcha->get_demo_template($id),

                                        'S_CAPTCHA_HAS_CONFIG'        => $demo_captcha->has_config(),

                                        'CAPTCHA_SELECT'                => $captcha_select,

                                ));

                        }

                }

        }

        /**

        * Entry point for delivering image CAPTCHAs in the ACP.

        */

        function deliver_demo($selected)

        {

                global $db, $user, $config;

                $captcha =& phpbb_captcha_factory::get_instance($selected);

                $captcha->init(CONFIRM_REG);

                $captcha->execute_demo();

                garbage_collection();

                exit_handler();

        }

}

?>