<?php 

define("LIBR", "\r\n"); // use a "\n" if you have problems 

class attach_mailer { 
    
   var $from_name; 
   var $from_mail; 
   var $mail_to; 
   var $mail_cc; 
   var $mail_bcc; 
    
   var $mail_headers; 
   var $mail_subject; 
   var $mail_body = ""; 
    
   var $valid_mail_adresses; // boolean is true if all mail(to) adresses are valid 
   var $uid; // the unique value for the mail boundry 
   var $mail_priority = 3; // 3 = normal, 2 = high, 4 = low 
    
   var $att_files = array(); 
   var $msg = array(); 
    
   // functions inside this constructor 
   // - validation of e-mail adresses 
   // - setting mail variables 
   // - setting boolean $valid_mail_adresses 
   function attach_mailer($name = "", $from, $to, $cc = "", $bcc = "", $subject = "", $body = "") { 
       $this->valid_mail_adresses = true; 
       if (!$this->check_mail_address($to)) { 
           $this->msg[] = "Error, the \"mailto\" address is empty or not valid."; 
           $this->valid_mail_adresses = false; 
       } 
       if (!$this->check_mail_address($from)) { 
           $this->msg[] = "Error, the \"from\" address is empty or not valid."; 
           $this->valid_mail_adresses = false; 
       } 
       if ($cc != "") { 
           if (!$this->check_mail_address($cc)) { 
               $this->msg[] = "Error, the \"Cc\" address is not valid."; 
               $this->valid_mail_adresses = false; 
           } 
       } 
       if ($bcc != "") { 
           if (!$this->check_mail_address($bcc)) { 
               $this->msg[] = "Error, the \"Bcc\" address is not valid."; 
               $this->valid_mail_adresses = false; 
           } 
       } 
       if ($this->valid_mail_adresses) { 
           $this->from_name = $this->strip_line_breaks($name); 
           $this->from_mail = $this->strip_line_breaks($from); 
           $this->mail_to = $this->strip_line_breaks($to); 
           $this->mail_cc = $this->strip_line_breaks($cc); 
           $this->mail_bcc = $this->strip_line_breaks($bcc); 
           $this->mail_subject = $this->strip_line_breaks($subject); 
           $this->create_mime_boundry(); 
           $this->mail_body = $this->create_msg_body($body); 
           $this->mail_headers = $this->create_mail_headers(); 
       } else { 
           return; 
       }         
   } 
   function get_msg_str() { 
       $messages = ""; 
       foreach($this->msg as $val) { 
           $messages .= $val."<br>\n"; 
       } 
       return $messages;             
   } 
   // use this to prent formmail spamming 
   function strip_line_breaks($val) { 
       $val = preg_replace("/([\r\n])/", "", $val); 
       return $val; 
   } 
   function check_mail_address($mail_address) { 
       $pattern = "/^[\w-]+(\.[\w-]+)*@([0-9a-z][0-9a-z-]*[0-9a-z]\.)+([a-z]{2,4})$/i"; 
       if (preg_match($pattern, $mail_address)) { 
           if (function_exists("checkdnsrr")) { 
               $parts = explode("@", $mail_address); 
               if (checkdnsrr($parts[1], "MX")){ 
                   return true; 
               } else { 
                   return false; 
               } 
           } else { 
               // on windows hosts is only a limited e-mail address validation possible 
               return true; 
           } 
       } else { 
           return false; 
       } 
   } 
   function create_mime_boundry() { 
       $this->uid = "_".md5(uniqid(time())); 
   } 
   function get_file_data($filepath) { 
       if (file_exists($filepath)) { 
           if (!$str = file_get_contents($filepath)) { 
               $this->msg[] = "Error while opening attachment \"".basename($filepath)."\""; 
           } else { 
               return $str; 
           } 
       } else { 
           $this->msg[] = "Error, the file \"".basename($filepath)."\" does not exist."; 
           return; 
       } 
   } 
   // remember "LIBR" is the line break defined in constact above 
   function create_msg_body($mail_msg, $cont_tranf_enc = "7bit", $type = "text/plain", $enc = "iso-8859-1") { 
       $str = "--".$this->uid.LIBR; 
       $str .= "Content-type:".$type."; charset=".$enc.LIBR; 
       $str .= "Content-Transfer-Encoding: ".$cont_tranf_enc.LIBR.LIBR; 
       $str .= trim($mail_msg).LIBR.LIBR; 
       return $str; 
   } 
   function create_mail_headers() { 
       if ($this->from_name != "") { 
           $headers = "From: ".$this->from_name." <".$this->from_mail.">".LIBR; 
           $headers .= "Reply-To: ".$this->from_name." <".$this->from_mail.">".LIBR; 
       } else { 
           $headers = "From: ".$this->from_mail.LIBR; 
           $headers .= "Reply-To: ".$this->from_mail.LIBR; 
       } 
       if ($this->mail_cc != "") $headers .= "Cc: ".$this->mail_cc.LIBR; 
       if ($this->mail_bcc != "") $headers .= "Bcc: ".$this->mail_bcc.LIBR; 
       $headers .= "MIME-Version: 1.0".LIBR; 
       $headers .= "X-Mailer: Attachment Mailer ver. 1.0".LIBR; 
       $headers .= "X-Priority: ".$this->mail_priority.LIBR; 
       $headers .= "Content-Type: multipart/mixed;".LIBR.chr(9)." boundary=\"".$this->uid."\"".LIBR.LIBR; 
       $headers .= "This is a multi-part message in MIME format.".LIBR.LIBR; 
       return $headers; 
   } 
   // use for $dispo "attachment" or "inline" (f.e. example images inside a html mail 
   function create_attachment_part($file, $dispo = "attachment") { 
       if (!$this->valid_mail_adresses) return; 
       $file_str = $this->get_file_data($file); 
       if ($file_str == "") { 
           return; 
       } else { 
           $filename = basename($file); 
           $file_type = mime_content_type($file); 
           $chunks = chunk_split(base64_encode($file_str)); 
           $mail_part = "--".$this->uid.LIBR; 
           $mail_part .= "Content-type:".$file_type.";".LIBR.chr(9)." name=\"".$filename."\"".LIBR; 
           $mail_part .= "Content-Transfer-Encoding: base64".LIBR; 
           $mail_part .= "Content-Disposition: ".$dispo.";".chr(9)."filename=\"".$filename."\"".LIBR.LIBR; 
           $mail_part .= $chunks; 
           $mail_part .= LIBR.LIBR; 
           $this->att_files[] = $mail_part; 
       }             
   } 
   function process_mail() { 
       if (!$this->valid_mail_adresses) return; 
       $mail_message = $this->mail_body; 
       if (count($this->att_files) > 0) { 
           foreach ($this->att_files as $val) { 
               $mail_message .= $val; 
           } 
           $mail_message .= "--".$this->uid."--"; 
       } 
       if (mail($this->mail_to, $this->mail_subject, $mail_message, $this->mail_headers)) { 
           $this->msg[] = "Your mail is succesfully submitted."; 
       } else { 
           $this->msg[] = "Error while sending you mail."; 
       } 
   } 
} 
    
?>