lepton_mailer.php

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<?php
 
declare(strict_types=1);
 
require_once (LEPTON_PATH . "/modules/lib_phpmailer/library.php");
 
class LEPTON_mailer extends PHPMailer\PHPMailer\PHPMailer
{
 
    public static $instance;
    
    public static function getInstance( &$settings=array() )
    {
        if (null === static::$instance)
        {
            static::$instance = new static();
            static::$instance->__construct();
        }
 
        // clear all "old" addresses
        static::$instance->clearAllRecipients(); // seems not to work by getInstance()
        
        return static::$instance;
    }
    
    public function __construct()
    {
        // set method to send out emails
        if ( MAILER_ROUTINE == "smtp" && strlen( MAILER_SMTP_HOST ) > 5 )
        {
            $bCheckModul = extension_loaded('openssl');
            // use SMTP for all outgoing mails send
            $this->IsSMTP();
            $this->SMTPAuth = true; // default if smtp
            $this->SMTPSecure = MAILER_SMTP_SECURE;
            $this->Port = MAILER_SMTP_PORT;             
            
            // check if decrypting possible
            if ( $bCheckModul === true)
            {
                // decrypt values
                $this->Host = LEPTON_database::decryptstring(MAILER_SMTP_HOST);
                $this->Username = LEPTON_database::decryptstring(MAILER_SMTP_USERNAME);
                $this->Password = LEPTON_database::decryptstring(MAILER_SMTP_PASSWORD);
            }
            else
            {
                // use unencrypted values
                $this->Host = MAILER_SMTP_HOST;
                $this->Username = MAILER_SMTP_USERNAME;
                $this->Password = MAILER_SMTP_PASSWORD;             
            }
        }
        else
        {
            // use PHP mail() function for outgoing mails send by Website Baker
            $this->IsMail();
        }
        
        // set language file for PHPMailer error messages
        if ( defined( "LANGUAGE" ) )
        {
            $this->SetLanguage( strtolower( LANGUAGE ), "language" ); // english default (also used if file is missing)
        }
        
        // set default charset
        $this->CharSet =  defined( 'DEFAULT_CHARSET' ) ? DEFAULT_CHARSET : 'utf-8';
        
        // set default sender name
        if ( $this->FromName == 'Root User' )
        {
            $this->FromName = isset( $_SESSION[ 'DISPLAY_NAME' ] ) 
                ? $_SESSION[ 'DISPLAY_NAME' ] 
                : MAILER_DEFAULT_SENDERNAME
                ;
        }
        
        /* 
            some mail provider (lets say mail.com) reject mails send out by foreign mail 
            relays but using the providers domain in the from mail address (e.g. myname@mail.com)
        */
        $this->From = SERVER_EMAIL; // FROM MAIL: (server mail)
        
        // set default mail formats
        $this->IsHTML( true );
        $this->WordWrap = 80;
        $this->Timeout  = 30;
    }
 
    public function sendmail( $sFrom="", $sSendTo="", $sSubject="", $sMessage="")
    {
        $this->From = $sFrom;    
        $this->AddAddress( $sSendTo );   
        $this->Subject = $sSubject; // SUBJECT
        $this->Body = $sMessage;    // CONTENT (HTML)
        $this->AltBody = $sMessage; // CONTENT (PLAINTEXT)
        $this->CharSet="UTF-8";     // force text to be utf-8
 
        return $this->send();
    }
}