<?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."; 
        } 
    } 
} 
     
?>