Shieldon\Firewall\Panel\Sandbox\Smtp

Complexity

Total Complexity

17

Size/Duplication

Total Lines	83
Duplicated Lines	0 %

Importance

Changes	2
Bugs	0	Features	0

3 Methods

Rating	Name	Duplication	Size	Complexity
A	__invoke()	0	3	1
A	checkHost()	0	9	3
C	sandbox()	0	43	13

<?php
/*
 * This file is part of the Shieldon package.
 *
 * (c) Terry L. <contact@terryl.in>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

declare(strict_types=1);

namespace Shieldon\Firewall\Panel\Sandbox;

use Shieldon\Messenger as Messenger;

/**
 * The sandbox for SMTP.
 */
class Smtp
{
    /**
     * Invoker.
     *
     * @param array $args
     *
     * @return bool
     */
    public function __invoke(array $args): bool
    {
        return $this->sandbox($args[0], $args[1]);
    }

    /**
     * Test SMTP.
     *
     * @param array $getParams The GET params passed from tryMessenger method.
     * @param array $message   The message title and body.
     *
     * @return bool
     */
    private function sandbox($getParams, $message)
    {
        $type = $getParams['type'] ?? '';
        $host = $getParams['host'] ?? '';
        $user = $getParams['user'] ?? '';
        $pass = $getParams['pass'] ?? '';
        $port = $getParams['port'] ?? '';

        $sender = $getParams['sender'] ?? '';
        $recipients = $getParams['recipients'] ?? '';

        if (!$this->checkHost($host) || !is_numeric($port) || empty($user) || empty($pass)) {
            return false;
        }

        if ('ssl' === $type || 'tls' === $type) {
            $host = $type . '://' . $host;
        }

        if (!empty($sender) && $recipients) {
            $recipients = str_replace("\r", '|', $recipients);
            $recipients = str_replace("\n", '|', $recipients);
            $recipients = explode('|', $recipients);

            $messenger = new Messenger\Smtp($user, $pass, $host, (int) $port);

            foreach($recipients as $recipient) {
                if (filter_var($recipient, FILTER_VALIDATE_EMAIL)) {
                    $messenger->addRecipient($recipient);
                }
            }

            if (filter_var($sender, FILTER_VALIDATE_EMAIL)) {
                $messenger->addSender($sender);
            }

            $messenger->setSubject($message['title']);

            if ($messenger->send($message['body'])) {
                return true;
            }
        }
        return false;
    }

    /**
     * Check the SMTP host.
     *
     * @param string $host The IP address or server domain name.
     *
     * @return bool
     */
    private function checkHost(string $host): bool
    {
        if (
            !filter_var($host, FILTER_VALIDATE_IP) && 
            !filter_var($host, FILTER_VALIDATE_DOMAIN)
        ) {
            return false;
        }
        return true;
    }
}