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<?php
/**
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 * http://www.gnu.org/copyleft/gpl.html
 *
 * @file
 * @ingroup Installer
 */
class WebInstallerRestart extends WebInstallerPage {
    /**
     * @return string|null
     */
    public function execute() {
        $r = $this->parent->request;
        if ( $r->wasPosted() ) {
            $really = $r->getVal( 'submit-restart' );
            if ( $really ) {
                $this->parent->reset();
            }
            return 'continue';
        }
        $this->startForm();
        $s = Html::warningBox( wfMessage( 'config-help-restart' )->plain(), 'config-warning-box' );
        $this->addHTML( $s );
        $this->endForm( 'restart' );
        return null;
    }
}