<?

/******************
 *  mime_mail.inc *
 *****************/

class mime_mail
  {
    var $parts;
	var $to;
	var $from;
	var $headers;
	var $subject;
	var $body;
	
	/**********************
	 * void mime_mail()   *
	 * class constructor  *
	 **********************/
	 
	function mime_mail()
	{
	  $this->parts=array();
	  $this->to = "";
	  $this->from = "";
	  $this->subject = "";
	  $this->body = "";
	  $this->headers = ""; 
	}
	
	
	/**********************************************************************
	 * void add_attachment(string message, [string name], [string ctype]  *
	 * Add an attachment to the mail object                               *
	 **********************************************************************/
	 
	 function add_attachment($message, $name = "", $ctype = "")
	 {
	   $this->parts[] = array (
	          "ctype" => $ctype,
			  "message" => $message,
			  "encode" => $encode,
			  "name" => $name
			                  );
	 }
	 
	 /*******************************************
	  * void build_message(array part)          *
	  * Build message parts of a multipart mail *
	  *******************************************/
	  
	  function build_message($part)
	  {
	    $message = $part["message"];
		$message = chunk_split(base64_encode($message));
		$encoding = "base64";
		return "Content-Type: " . $part[ "c-type"] . ($part[ "name"]? "; name = \"".$part[ "name"]."\"" : ""). "\nContent-Transfer-Encoding: $encoding\n\n$message\n";
	  }
	  

	  /***************************
	   * void build_multipart()  *
	   * Build a Multi-part mail *
	   ***************************/
	   
	   function build_multipart()
	   {
	     $boundary = "b".md5(uniqid(time()));
		 $multipart = 
		      "Content-Type: multipart/mixed; boundary = $boundary\n\nThis is MIME encoded message.\n\n--$boundary";
		 for($i = sizeof($this->parts)-1; $i >=0; $i--)
		 {
		    $multipart.= "\n". $this->build_message($this->parts[$i]). "--$boundary";
		 }
		 return $multipart.= "--\n";
	   }
	   
	   
	   /********************************
	    * string get_mail()            *
		* returns the constructed mail *
		********************************/
		
		function get_mail ($complete = true)
		{
		  $mime = "";
		  if (!empty($this->from))
		     $mime.= "From: ".$this->from . "\n";
		  if (!empty($this->headers))
		     $mime.= $this->from . "\n";
		  if ($complete)
		  {
		     if (!empty($this->to))
		       $mime.= "To: ".$this->to . "\n";
             if (!empty($this->subject))
		       $mime.= "Subject: ".$this->subject . "\n";
		  }
		  
		  if (!empty($this->body))
		     $this->add_attachment($this->body, "", "text/html"); // I think this is content-type for diff file formats
		  $mime .= "MIME-Version: 1.0\n".$this->build_multipart();
		  
		  return $mime;
		}
		
		
		/**************************************
		 * viod send()                        *
		 * Send the mail                      *
		 * (last class function to be called) *
		 **************************************/
		 
		 function send()
		 {
		   $mime = $this->get_mail(false);
		   mail ($this->to, $this->subject, "", $mime);
		 }
		 
	}	// end of class
	
?>