index.php

<?php
/******************************************************************************
 *
 * Subrion - open source content management system
 * Copyright (C) 2018 Intelliants, LLC <https://intelliants.com>
 *
 * This file is part of Subrion.
 *
 * Subrion 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 3 of the License, or
 * (at your option) any later version.
 *
 * Subrion 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 Subrion. If not, see <http://www.gnu.org/licenses/>.
 *
 *
 * @link https://subrion.org/
 *
 ******************************************************************************/

$iaNewsletter = $iaCore->factoryModule('newsletter', IA_CURRENT_MODULE);

if (iaView::REQUEST_JSON == $iaView->getRequestType()) {
    if (isset($_GET['subscriber_email'])) {
        $response = ['error' => true];

        $fullname = iaSanitize::tags($_GET['subscriber_fullname']);
        $email = $_GET['subscriber_email'];

        if (!iaValidate::isEmail($email)) {
            $response['message'] = iaLanguage::get('error_email_incorrect');
        } elseif ($iaNewsletter->emailExists($email)) {
            $response['message'] = iaLanguage::get('subscriber_email_exists');
        } else {
            $iaUtil = $iaCore->factory('util');

            $data = [
                'status' => iaCore::STATUS_INACTIVE,
                'date' => date(iaDb::DATETIME_FORMAT),
                'email' => $email,
                'fullname' => $fullname ? $fullname : null,
                'token' => iaUtil::generateToken(32)
            ];

            $iaNewsletter->insert($data);

            $iaMailer = $iaCore->factory('mailer');

            $iaMailer->AddAddress($data['email']);

            $iaMailer->loadTemplate('newsletter_subscription');
            $iaMailer->setReplacements([
                'newslettersToken' => $data['token'],
                'newslettersEmail' => $data['email']
            ]);

            $iaMailer->Send();

            $response['error'] = false;
            $response['message'] = iaLanguage::get('subscription_email_sent');
        }

        $iaView->assign($response);


    }
}

if (iaView::REQUEST_HTML == $iaView->getRequestType()) {
    $error = false;
    $messages = [];

    if ($_GET['subscribe']) {
        if ($iaNewsletter->emailConfirmation($_GET['email'], $_GET['subscribe'])) {
            $messages[] = iaLanguage::get('newsletters_confirmed');
        } else {
            $error = true;
            $messages[] = iaLanguage::get('newsletters_confirmation_code_incorrect');
        }
    }

    if (isset($_GET['unsubscribe'])) {
        if ($iaNewsletter->tokenExists($_GET['unsubscribe'])) {
            $iaNewsletter->delete($_GET['unsubscribe']);
            $error = true;
            $messages[] = iaLanguage::get('newsletters_unsubscribed');
        } else {
            return iaView::errorPage(iaView::ERROR_NOT_FOUND);
        }
    }

    $iaView->setMessages($messages, $error ? iaView::ERROR : iaView::SUCCESS);

    $iaView->display(iaView::NONE);

}