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CodeLibProgrammierhilfenPHP

<?php

    
// Secure Mailer PHP Class
    // Revision: 2011-02-09
    // (C) 2009 - 2011 ViaThinkSoft
    // QB_SECURE_MAIL_PARAM (C) Erich Kachel

    
class SecureMailer {
        private 
$headers '';

        private function 
QB_SECURE_MAIL_PARAM($param_ ''$level_ 2) {
            
// Verhindert Mail-Header-Injections
            // Quelle: http://www.erich-kachel.de/?p=26

            
unset($filtered);

            
/* replace until done */
            
while ($param_ != $filtered || !isset($filtered)) {

                if (isset(
$filtered)) {
                    
$param_ $filtered;
                }

                
$filtered preg_replace("/(Content-Transfer-Encoding:|MIME-Version:|content-type:|Subject:|to:|cc:|bcc:|from:|reply-to:)/ims"''$param_);
            }

            unset(
$filtered);

            if (
$level_ >= 2) {
                
/* replace until done */
                
while ($param_ != $filtered || !isset($filtered)) {

                    if (isset(
$filtered)) {
                        
$param_ $filtered;
                    }

                    
$filtered preg_replace("/(%0A|\\r|%0D|\\n|%00|\\0|%09|\\t|%01|%02|%03|%04|%05|%06|%07|%08|%09|%0B|%0C|%0E|%0F|%10|%11|%12|%13)/ims"''$param_);
                }
            }

            return 
$param_;
        }

        private function 
getHeaders() {
            return 
$this->headers;
        }

        function 
addHeader($name$value) {
            
// Change 2011-02-09
            // LF is OK! CRLF does lead to CR+CRLF on some systems!
            // http://bugs.php.net/bug.php?id=15841
            // The mail() function is not talking to an SMTP server, so RFC2822 does not apply here. mail() is talking to a command line program on the local system, and it is reasonable to expect that program to require system-native line breaks.
            
$this->headers .= $this->QB_SECURE_MAIL_PARAM($name).': '.$this->QB_SECURE_MAIL_PARAM($value)."n"// rn
        
}

        
// TODO: Braucht man auch ein addRawHeader()?

        
function sendMail($recipient$subject$message) {
            return @
mail($this->QB_SECURE_MAIL_PARAM($recipient),
                
$this->QB_SECURE_MAIL_PARAM($subject),
                
$this->QB_SECURE_MAIL_PARAM($message1),
                
$this->getHeaders());
        }
    }

?>
Daniel Marschall
ViaThinkSoft Mitbegründer

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