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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.
*
*/
/**
* @ignore
*/
if (!defined('IN_PHPBB'))
{
    exit;
}
/**
* ucp_register
* Board registration
*/
class ucp_register
{
    var $u_action;
    function main($id, $mode)
    {
        global $config, $db, $user, $template, $phpbb_root_path, $phpEx;
        global $request, $phpbb_container, $phpbb_dispatcher;
        //
        if ($config['require_activation'] == USER_ACTIVATION_DISABLE ||
            (in_array($config['require_activation'], array(USER_ACTIVATION_SELF, USER_ACTIVATION_ADMIN)) && !$config['email_enable']))
        {
            trigger_error('UCP_REGISTER_DISABLE');
        }
        $coppa            = $request->is_set('coppa_yes') ? 1 : ($request->is_set('coppa_no') ? 0 : false);
        $coppa            = $request->is_set('coppa') ? $request->variable('coppa', 0) : $coppa;
        $agreed            = $request->variable('agreed', false);
        $submit            = $request->is_set_post('submit');
        $change_lang    = $request->variable('change_lang', '');
        $user_lang        = $request->variable('lang', $user->lang_name);
        if ($agreed && !check_form_key('ucp_register'))
        {
            $agreed = false;
        }
        if ($coppa !== false && !check_form_key('ucp_register'))
        {
            $coppa = false;
        }
        /**
        * Add UCP register data before they are assigned to the template or submitted
        *
        * To assign data to the template, use $template->assign_vars()
        *
        * @event core.ucp_register_requests_after
        * @var    bool    coppa        Is set coppa
        * @var    bool    agreed        Did user agree to coppa?
        * @var    bool    submit        Is set post submit?
        * @var    string    change_lang    Change language request
        * @var    string    user_lang    User language request
        * @since 3.1.11-RC1
        */
        $vars = array(
            'coppa',
            'agreed',
            'submit',
            'change_lang',
            'user_lang',
        );
        extract($phpbb_dispatcher->trigger_event('core.ucp_register_requests_after', compact($vars)));
        add_form_key('ucp_register');
        if ($change_lang || $user_lang != $config['default_lang'])
        {
            $use_lang = ($change_lang) ? basename($change_lang) : basename($user_lang);
            if (!validate_language_iso_name($use_lang))
            {
                if ($change_lang)
                {
                    $submit = false;
                    // Setting back agreed to let the user view the agreement in his/her language
                    $agreed = false;
                }
                $user_lang = $use_lang;
            }
            else
            {
                $change_lang = '';
                $user_lang = $user->lang_name;
            }
        }
        /* @var $cp \phpbb\profilefields\manager */
        $cp = $phpbb_container->get('profilefields.manager');
        $error = $cp_data = $cp_error = array();
        $s_hidden_fields = array();
        // Handle login_link data added to $_hidden_fields
        $login_link_data = $this->get_login_link_data_array();
        if (!empty($login_link_data))
        {
            // Confirm that we have all necessary data
            /* @var $provider_collection \phpbb\auth\provider_collection */
            $provider_collection = $phpbb_container->get('auth.provider_collection');
            $auth_provider = $provider_collection->get_provider($request->variable('auth_provider', ''));
            $result = $auth_provider->login_link_has_necessary_data($login_link_data);
            if ($result !== null)
            {
                $error[] = $user->lang[$result];
            }
            $s_hidden_fields = array_merge($s_hidden_fields, $this->get_login_link_data_for_hidden_fields($login_link_data));
        }
        if (!$agreed || ($coppa === false && $config['coppa_enable']) || ($coppa && !$config['coppa_enable']))
        {
            $add_coppa = ($coppa !== false) ? '&amp;coppa=' . $coppa : '';
            $s_hidden_fields = array_merge($s_hidden_fields, array(
                'change_lang'    => '',
            ));
            // If we change the language, we want to pass on some more possible parameter.
            if ($change_lang)
            {
                // We do not include the password
                $s_hidden_fields = array_merge($s_hidden_fields, array(
                    'username'            => $request->variable('username', '', true),
                    'email'                => strtolower($request->variable('email', '')),
                    'lang'                => $user->lang_name,
                    'tz'                => $request->variable('tz', $config['board_timezone']),
                ));
            }
            // Checking amount of available languages
            $sql = 'SELECT lang_iso, lang_local_name
                FROM ' . LANG_TABLE . '
                ORDER BY lang_english_name';
            $result = $db->sql_query($sql);
            $lang_row = (array) $db->sql_fetchrowset($result);
            $db->sql_freeresult($result);
            if ($coppa === false && $config['coppa_enable'])
            {
                $now = getdate();
                $coppa_birthday = $user->create_datetime()
                    ->setDate($now['year'] - 13, $now['mon'], $now['mday'] - 1)
                    ->setTime(0, 0, 0)
                    ->format($user->lang['DATE_FORMAT'], true);
                unset($now);
                $template_vars = array(
                    'S_LANG_OPTIONS'    => (count($lang_row) > 1) ? language_select($user_lang, $lang_row) : '',
                    'L_COPPA_NO'        => $user->lang('UCP_COPPA_BEFORE', $coppa_birthday),
                    'L_COPPA_YES'        => $user->lang('UCP_COPPA_ON_AFTER', $coppa_birthday),
                    'S_SHOW_COPPA'        => true,
                    'S_HIDDEN_FIELDS'    => build_hidden_fields($s_hidden_fields),
                    'S_UCP_ACTION'        => append_sid("{$phpbb_root_path}ucp.$phpEx", 'mode=register'),
                    'COOKIE_NAME'        => $config['cookie_name'],
                    'COOKIE_PATH'        => $config['cookie_path'],
                );
            }
            else
            {
                $template_vars = array(
                    'S_LANG_OPTIONS'    => (count($lang_row) > 1) ? language_select($user_lang, $lang_row) : '',
                    'L_TERMS_OF_USE'    => sprintf($user->lang['TERMS_OF_USE_CONTENT'], $config['sitename'], generate_board_url()),
                    'S_SHOW_COPPA'        => false,
                    'S_REGISTRATION'    => true,
                    'S_HIDDEN_FIELDS'    => build_hidden_fields($s_hidden_fields),
                    'S_UCP_ACTION'        => append_sid("{$phpbb_root_path}ucp.$phpEx", 'mode=register' . $add_coppa),
                    'COOKIE_NAME'        => $config['cookie_name'],
                    'COOKIE_PATH'        => $config['cookie_path'],
                );
            }
            $tpl_name = 'ucp_agreement';
            /**
            * Allows to modify the agreements.
            *
            * @event core.ucp_register_agreement_modify_template_data
            * @var    string    tpl_name            Template file
            * @var    array    template_vars        Array with data about to be assigned to the template
            * @var    array    s_hidden_fields        Array with hidden form elements
            * @var    array    lang_row            Array with available languages, read only
            * @since 3.2.2-RC1
            */
            $vars = array('tpl_name', 'template_vars', 's_hidden_fields', 'lang_row');
            extract($phpbb_dispatcher->trigger_event('core.ucp_register_agreement_modify_template_data', compact($vars)));
            unset($lang_row);
            $template_vars = array_merge($template_vars, array(
                'S_HIDDEN_FIELDS' => build_hidden_fields($s_hidden_fields),
            ));
            $template->assign_vars($template_vars);
            /**
            * Allows to modify the agreements.
            *
            * To assign data to the template, use $template->assign_vars()
            *
            * @event core.ucp_register_agreement
            * @since 3.1.6-RC1
            * @deprecated 3.2.2-RC1 Replaced by core.ucp_register_agreement_modify_template_data and to be removed in 3.3.0-RC1
            */
            $phpbb_dispatcher->dispatch('core.ucp_register_agreement');
            $this->tpl_name = $tpl_name;
            return;
        }
        // The CAPTCHA kicks in here. We can't help that the information gets lost on language change.
        if ($config['enable_confirm'])
        {
            $captcha = $phpbb_container->get('captcha.factory')->get_instance($config['captcha_plugin']);
            $captcha->init(CONFIRM_REG);
        }
        $timezone = $config['board_timezone'];
        $data = array(
            'username'            => $request->variable('username', '', true),
            'new_password'        => $request->variable('new_password', '', true),
            'password_confirm'    => $request->variable('password_confirm', '', true),
            'email'                => strtolower($request->variable('email', '')),
            'lang'                => basename($request->variable('lang', $user->lang_name)),
            'tz'                => $request->variable('tz', $timezone),
        );
        /**
        * Add UCP register data before they are assigned to the template or submitted
        *
        * To assign data to the template, use $template->assign_vars()
        *
        * @event core.ucp_register_data_before
        * @var    bool    submit        Do we display the form only
        *                            or did the user press submit
        * @var    array    data        Array with current ucp registration data
        * @since 3.1.4-RC1
        */
        $vars = array('submit', 'data');
        extract($phpbb_dispatcher->trigger_event('core.ucp_register_data_before', compact($vars)));
        // Check and initialize some variables if needed
        if ($submit)
        {
            $error = validate_data($data, array(
                'username'            => array(
                    array('string', false, $config['min_name_chars'], $config['max_name_chars']),
                    array('username', '')),
                'new_password'        => array(
                    array('string', false, $config['min_pass_chars'], 0),
                    array('password')),
                'password_confirm'    => array('string', false, $config['min_pass_chars'], 0),
                'email'                => array(
                    array('string', false, 6, 60),
                    array('user_email')),
                'tz'                => array('timezone'),
                'lang'                => array('language_iso_name'),
            ));
            if (!check_form_key('ucp_register'))
            {
                $error[] = $user->lang['FORM_INVALID'];
            }
            // Replace "error" strings with their real, localised form
            $error = array_map(array($user, 'lang'), $error);
            if ($config['enable_confirm'])
            {
                $vc_response = $captcha->validate($data);
                if ($vc_response !== false)
                {
                    $error[] = $vc_response;
                }
                if ($config['max_reg_attempts'] && $captcha->get_attempt_count() > $config['max_reg_attempts'])
                {
                    trigger_error('TOO_MANY_REGISTERS');
                }
            }
            // DNSBL check
            if ($config['check_dnsbl'])
            {
                if (($dnsbl = $user->check_dnsbl('register')) !== false)
                {
                    $error[] = sprintf($user->lang['IP_BLACKLISTED'], $user->ip, $dnsbl[1]);
                }
            }
            // validate custom profile fields
            $cp->submit_cp_field('register', $user->get_iso_lang_id(), $cp_data, $error);
            if (!count($error))
            {
                if ($data['new_password'] != $data['password_confirm'])
                {
                    $error[] = $user->lang['NEW_PASSWORD_ERROR'];
                }
            }
            /**
            * Check UCP registration data after they are submitted
            *
            * @event core.ucp_register_data_after
            * @var    bool    submit        Do we display the form only
            *                            or did the user press submit
            * @var    array     data        Array with current ucp registration data
            * @var    array    cp_data        Array with custom profile fields data
            * @var    array     error        Array with list of errors
            * @since 3.1.4-RC1
            */
            $vars = array('submit', 'data', 'cp_data', 'error');
            extract($phpbb_dispatcher->trigger_event('core.ucp_register_data_after', compact($vars)));
            if (!count($error))
            {
                $server_url = generate_board_url();
                // Which group by default?
                $group_name = ($coppa) ? 'REGISTERED_COPPA' : 'REGISTERED';
                $sql = 'SELECT group_id
                    FROM ' . GROUPS_TABLE . "
                    WHERE group_name = '" . $db->sql_escape($group_name) . "'
                        AND group_type = " . GROUP_SPECIAL;
                $result = $db->sql_query($sql);
                $row = $db->sql_fetchrow($result);
                $db->sql_freeresult($result);
                if (!$row)
                {
                    trigger_error('NO_GROUP');
                }
                $group_id = $row['group_id'];
                if (($coppa ||
                    $config['require_activation'] == USER_ACTIVATION_SELF ||
                    $config['require_activation'] == USER_ACTIVATION_ADMIN) && $config['email_enable'])
                {
                    $user_actkey = strtolower(gen_rand_string(32));
                    $user_type = USER_INACTIVE;
                    $user_inactive_reason = INACTIVE_REGISTER;
                    $user_inactive_time = time();
                }
                else
                {
                    $user_type = USER_NORMAL;
                    $user_actkey = '';
                    $user_inactive_reason = 0;
                    $user_inactive_time = 0;
                }
                // Instantiate passwords manager
                /* @var $passwords_manager \phpbb\passwords\manager */
                $passwords_manager = $phpbb_container->get('passwords.manager');
                $user_row = array(
                    'username'                    => $data['username'],
                    'user_password'                => $passwords_manager->hash($data['new_password']),
                    'user_email'                => $data['email'],
                    'group_id'                    => (int) $group_id,
                    'user_timezone'                => $data['tz'],
                    'user_lang'                    => $data['lang'],
                    'user_type'                    => $user_type,
                    'user_actkey'                => $user_actkey,
                    'user_actkey_expiration'    => $user::get_token_expiration(),
                    'user_ip'                    => $user->ip,
                    'user_regdate'                => time(),
                    'user_inactive_reason'        => $user_inactive_reason,
                    'user_inactive_time'        => $user_inactive_time,
                );
                if ($config['new_member_post_limit'])
                {
                    $user_row['user_new'] = 1;
                }
                /**
                * Add into $user_row before user_add
                *
                * user_add allows adding more data into the users table
                *
                * @event core.ucp_register_user_row_after
                * @var    bool    submit        Do we display the form only
                *                            or did the user press submit
                * @var    array    data        Array with current ucp registration data
                * @var    array    cp_data        Array with custom profile fields data
                * @var    array    user_row    Array with user data that will be inserted
                * @since 3.1.4-RC1
                * @changed 3.2.10-RC1 Added data array
                */
                $vars = array('submit', 'data', 'cp_data', 'user_row');
                extract($phpbb_dispatcher->trigger_event('core.ucp_register_user_row_after', compact($vars)));
                // Register user...
                $user_id = user_add($user_row, $cp_data);
                // This should not happen, because the required variables are listed above...
                if ((bool) $user_id === false)
                {
                    trigger_error('NO_USER', E_USER_ERROR);
                }
                // Okay, captcha, your job is done.
                if ($config['enable_confirm'] && isset($captcha))
                {
                    $captcha->reset();
                }
                if ($coppa && $config['email_enable'])
                {
                    $message = $user->lang['ACCOUNT_COPPA'];
                    $email_template = 'coppa_welcome_inactive';
                }
                else if ($config['require_activation'] == USER_ACTIVATION_SELF && $config['email_enable'])
                {
                    $message = $user->lang['ACCOUNT_INACTIVE'];
                    $email_template = 'user_welcome_inactive';
                }
                else if ($config['require_activation'] == USER_ACTIVATION_ADMIN && $config['email_enable'])
                {
                    $message = $user->lang['ACCOUNT_INACTIVE_ADMIN'];
                    $email_template = 'admin_welcome_inactive';
                }
                else
                {
                    $message = $user->lang['ACCOUNT_ADDED'];
                    $email_template = 'user_welcome';
                    // Autologin after registration
                    $user->session_create($user_id, 0, false, 1);
                }
                if ($config['email_enable'])
                {
                    include_once($phpbb_root_path . 'includes/functions_messenger.' . $phpEx);
                    $messenger = new messenger(false);
                    $messenger->template($email_template, $data['lang']);
                    $messenger->to($data['email'], $data['username']);
                    $messenger->anti_abuse_headers($config, $user);
                    $messenger->assign_vars(array(
                        'WELCOME_MSG'    => html_entity_decode(sprintf($user->lang['WELCOME_SUBJECT'], $config['sitename']), ENT_COMPAT),
                        'USERNAME'        => html_entity_decode($data['username'], ENT_COMPAT),
                        'PASSWORD'        => html_entity_decode($data['new_password'], ENT_COMPAT),
                        'U_ACTIVATE'    => "$server_url/ucp.$phpEx?mode=activate&u=$user_id&k=$user_actkey")
                    );
                    if ($coppa)
                    {
                        $messenger->assign_vars(array(
                            'FAX_INFO'        => $config['coppa_fax'],
                            'MAIL_INFO'        => $config['coppa_mail'],
                            'EMAIL_ADDRESS'    => $data['email'])
                        );
                    }
                    /**
                    * Modify messenger data before welcome mail is sent
                    *
                    * @event core.ucp_register_welcome_email_before
                    * @var    array        user_row    Array with user registration data
                    * @var    array        cp_data        Array with custom profile fields data
                    * @var    array        data        Array with current ucp registration data
                    * @var    string        message        Message to be displayed to the user after registration
                    * @var    string        server_url    Server URL
                    * @var    int            user_id        New user ID
                    * @var    string        user_actkey    User activation key
                    * @var    messenger    messenger    phpBB Messenger
                    * @since 3.2.4-RC1
                    */
                    $vars = array(
                        'user_row',
                        'cp_data',
                        'data',
                        'message',
                        'server_url',
                        'user_id',
                        'user_actkey',
                        'messenger',
                    );
                    extract($phpbb_dispatcher->trigger_event('core.ucp_register_welcome_email_before', compact($vars)));
                    $messenger->send(NOTIFY_EMAIL);
                }
                if ($config['require_activation'] == USER_ACTIVATION_ADMIN)
                {
                    /* @var $phpbb_notifications \phpbb\notification\manager */
                    $phpbb_notifications = $phpbb_container->get('notification_manager');
                    $phpbb_notifications->add_notifications('notification.type.admin_activate_user', array(
                        'user_id'        => $user_id,
                        'user_actkey'    => $user_row['user_actkey'],
                        'user_regdate'    => $user_row['user_regdate'],
                    ));
                }
                // Perform account linking if necessary
                if (!empty($login_link_data))
                {
                    $login_link_data['user_id'] = $user_id;
                    $result = $auth_provider->link_account($login_link_data);
                    if ($result)
                    {
                        $message = $message . '<br /><br />' . $user->lang[$result];
                    }
                }
                /**
                * Perform additional actions after user registration
                *
                * @event core.ucp_register_register_after
                * @var    array        user_row    Array with user registration data
                * @var    array        cp_data        Array with custom profile fields data
                * @var    array        data        Array with current ucp registration data
                * @var    string        message        Message to be displayed to the user after registration
                * @var    string        server_url    Server URL
                * @var    int            user_id        New user ID
                * @var    string        user_actkey    User activation key
                * @since 3.2.4-RC1
                */
                $vars = array(
                    'user_row',
                    'cp_data',
                    'data',
                    'message',
                    'server_url',
                    'user_id',
                    'user_actkey',
                );
                extract($phpbb_dispatcher->trigger_event('core.ucp_register_register_after', compact($vars)));
                $message = $message . '<br /><br />' . sprintf($user->lang['RETURN_INDEX'], '<a href="' . append_sid("{$phpbb_root_path}index.$phpEx") . '">', '</a>');
                trigger_error($message);
            }
        }
        $s_hidden_fields = array_merge($s_hidden_fields, array(
            'agreed'        => 'true',
            'change_lang'    => 0,
        ));
        if ($config['coppa_enable'])
        {
            $s_hidden_fields['coppa'] = $coppa;
        }
        if ($config['enable_confirm'])
        {
            $s_hidden_fields = array_merge($s_hidden_fields, $captcha->get_hidden_fields());
        }
        // Visual Confirmation - Show images
        if ($config['enable_confirm'])
        {
            $template->assign_vars(array(
                'CAPTCHA_TEMPLATE'        => $captcha->get_template(),
            ));
        }
        //
        $l_reg_cond = '';
        switch ($config['require_activation'])
        {
            case USER_ACTIVATION_SELF:
                $l_reg_cond = $user->lang['UCP_EMAIL_ACTIVATE'];
            break;
            case USER_ACTIVATION_ADMIN:
                $l_reg_cond = $user->lang['UCP_ADMIN_ACTIVATE'];
            break;
        }
        /* @var $provider_collection \phpbb\auth\provider_collection */
        $provider_collection = $phpbb_container->get('auth.provider_collection');
        $auth_provider = $provider_collection->get_provider();
        $auth_provider_data = $auth_provider->get_login_data();
        if ($auth_provider_data)
        {
            if (isset($auth_provider_data['VARS']))
            {
                $template->assign_vars($auth_provider_data['VARS']);
            }
            if (isset($auth_provider_data['BLOCK_VAR_NAME']))
            {
                foreach ($auth_provider_data['BLOCK_VARS'] as $block_vars)
                {
                    $template->assign_block_vars($auth_provider_data['BLOCK_VAR_NAME'], $block_vars);
                }
            }
            $template->assign_vars(array(
                'PROVIDER_TEMPLATE_FILE' => $auth_provider_data['TEMPLATE_FILE'],
            ));
        }
        // Assign template vars for timezone select
        phpbb_timezone_select($template, $user, $data['tz'], true);
        // Checking amount of available languages
        $sql = 'SELECT lang_iso, lang_local_name
            FROM ' . LANG_TABLE . '
            ORDER BY lang_english_name';
        $result = $db->sql_query($sql);
        $lang_row = (array) $db->sql_fetchrowset($result);
        $db->sql_freeresult($result);
        $template_vars = array(
            'USERNAME'            => $data['username'],
            'PASSWORD'            => $data['new_password'],
            'PASSWORD_CONFIRM'    => $data['password_confirm'],
            'EMAIL'                => $data['email'],
            'L_REG_COND'                => $l_reg_cond,
            'L_USERNAME_EXPLAIN'        => $user->lang($config['allow_name_chars'] . '_EXPLAIN', $user->lang('CHARACTERS_XY', (int) $config['min_name_chars']), $user->lang('CHARACTERS_XY', (int) $config['max_name_chars'])),
            'L_PASSWORD_EXPLAIN'        => $user->lang($config['pass_complex'] . '_EXPLAIN', $user->lang('CHARACTERS_XY', (int) $config['min_pass_chars'])),
            'S_LANG_OPTIONS'    => (count($lang_row) > 1) ? language_select($data['lang'], $lang_row) : '',
            'S_TZ_PRESELECT'    => !$submit,
            'S_CONFIRM_REFRESH'    => ($config['enable_confirm'] && $config['confirm_refresh']) ? true : false,
            'S_REGISTRATION'    => true,
            'S_COPPA'            => $coppa,
            'S_UCP_ACTION'        => append_sid("{$phpbb_root_path}ucp.$phpEx", 'mode=register'),
            'COOKIE_NAME'        => $config['cookie_name'],
            'COOKIE_PATH'        => $config['cookie_path'],
        );
        $tpl_name = 'ucp_register';
        /**
        * Modify template data on the registration page
        *
        * @event core.ucp_register_modify_template_data
        * @var    array    template_vars        Array with template data
        * @var    array    data                Array with user data, read only
        * @var    array    error                Array with errors
        * @var    array    s_hidden_fields        Array with hidden field elements
        * @var    string    tpl_name            Template name
        * @since 3.2.2-RC1
        */
        $vars = array(
            'template_vars',
            'data',
            'error',
            's_hidden_fields',
            'tpl_name',
        );
        extract($phpbb_dispatcher->trigger_event('core.ucp_register_modify_template_data', compact($vars)));
        $template_vars = array_merge($template_vars, array(
            'ERROR'                => (count($error)) ? implode('<br />', $error) : '',
            'S_HIDDEN_FIELDS'    => build_hidden_fields($s_hidden_fields),
        ));
        $template->assign_vars($template_vars);
        //
        $user->profile_fields = array();
        // Generate profile fields -> Template Block Variable profile_fields
        $cp->generate_profile_fields('register', $user->get_iso_lang_id());
        //
        $this->tpl_name = $tpl_name;
    }
    /**
    * Creates the login_link data array
    *
    * @return    array    Returns an array of all POST paramaters whose names
    *                    begin with 'login_link_'
    */
    protected function get_login_link_data_array()
    {
        global $request;
        $var_names = $request->variable_names(\phpbb\request\request_interface::POST);
        $login_link_data = array();
        $string_start_length = strlen('login_link_');
        foreach ($var_names as $var_name)
        {
            if (strpos($var_name, 'login_link_') === 0)
            {
                $key_name = substr($var_name, $string_start_length);
                $login_link_data[$key_name] = $request->variable($var_name, '', false, \phpbb\request\request_interface::POST);
            }
        }
        return $login_link_data;
    }
    /**
    * Prepends they key names of an associative array with 'login_link_' for
    * inclusion on the page as hidden fields.
    *
    * @param    array    $data    The array to be modified
    * @return    array    The modified array
    */
    protected function get_login_link_data_for_hidden_fields($data)
    {
        $new_data = array();
        foreach ($data as $key => $value)
        {
            $new_data['login_link_' . $key] = $value;
        }
        return $new_data;
    }
}