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LiteSpeed

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Linux 5.14.0-570.19.1.el9_6.x86_64

PHP Version:

8.2.28

User:

u802471691

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✏️ Editing: SimpleSMTP.php

<?php
class SimpleSMTP {
    private $host;
    private $port;
    private $user;
    private $pass;
    private $debug = false;

public function __construct($host, $port, $user, $pass) {
        $this->host = $host;
        $this->port = $port;
        $this->user = $user;
        $this->pass = $pass;
    }

public function send($to, $subject, $message, $from_email, $from_name) {
        $host_prefix = '';
        if ($this->port == 465) {
            $host_prefix = 'ssl://';
        }

$socket = fsockopen($host_prefix . $this->host, $this->port, $errno, $errstr, 30);
        if (!$socket) {
            return false;
        }

$this->read($socket); // banner

$this->cmd($socket, 'EHLO ' . $this->host);
        
        // Only start TLS if not already using SSL and port is typically TLS (587)
        if ($this->port == 587) {
            $this->cmd($socket, 'STARTTLS');
            stream_socket_enable_crypto($socket, true, STREAM_CRYPTO_METHOD_TLS_CLIENT);
            $this->cmd($socket, 'EHLO ' . $this->host);
        }
        
        $this->cmd($socket, 'AUTH LOGIN');
        $this->cmd($socket, base64_encode($this->user));
        $this->cmd($socket, base64_encode($this->pass));

$this->cmd($socket, 'MAIL FROM: <' . $from_email . '>');
        $this->cmd($socket, 'RCPT TO: <' . $to . '>');
        $this->cmd($socket, 'DATA');

$headers = "MIME-Version: 1.0\r\n";
        $headers .= "Content-Type: text/html; charset=UTF-8\r\n";
        $headers .= "From: $from_name <$from_email>\r\n";
        $headers .= "To: <$to>\r\n";
        $headers .= "Subject: $subject\r\n";

$this->cmd($socket, $headers . "\r\n" . $message . "\r\n.");
        $global_result = $this->cmd($socket, 'QUIT');

fclose($socket);
        
        return true; 
    }

private function cmd($socket, $cmd) {
        fputs($socket, $cmd . "\r\n");
        return $this->read($socket);
    }

private function read($socket) {
        $response = '';
        while ($str = fgets($socket, 515)) {
            $response .= $str;
            if (substr($str, 3, 1) == ' ') break;
        }
        return $response;
    }
}
?>

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