<?php


//Toegestane MIME-typen
$allowed=array('image/x-png','image/jpeg','image/bmp','image/pjpeg','text/plain','text/html','image/png','image/gif','application/x-js','application/x-shockwave-flash');
//Maximale aantal bijlagen. Wordt overgenomen door JavaScript file input en ook server sided geverifieerd
$max_atts=3;


function validate($param)
{
	if(!ereg('/\.([^\.]*$)/',$param))
		
	{
    	$addr=explode("@",$param);
    	$local=explode(".",$addr[0]);
    	for($i=0;$i<sizeof($local);$i++)
    	{
        	if(!ereg("^(([A-Za-z0-9!#$%&'*+/=?^_`{|}~-][A-Za-z0-9!#$%&'*+/=?^_`{|}~\.-]{0,63})|(\"[^(\\|\")]{0,62}\"))$",$local[$i]))
        	return 0;
    	}
    	if(!ereg("^\[?[0-9\.]+\]?$",$addr[1]))
    	{
        	$domain=explode(".",$addr[1]);
        	if(sizeof($domain)<2)
        	return 0;
        	for($i=0;$i<sizeof($domain);$i++)
        	{
            	if(!ereg("^(([A-Za-z0-9][A-Za-z0-9-]{0,61}[A-Za-z0-9])|([A-Za-z0-9]+))$",$domain[$i]))
            	return 0;
        	}
    	}
    	return 1;
	}
	else
	return 0;
}


function verify_field()
{
	$err="";
	if(validate($_POST['send_mail'])==0)
	{
     	$err.="<li>Geef een correct geformuleerd e-mailadres</li>\n";
    	$error=1;
	}
	$recipients=explode(",",$_POST['rec_name']);
	for($i=0;$i<sizeof($recipients);$i++)
	{
    	if(validate($recipients[$i])==0)
    	{
         	$err.="<li>Geef 1 of meerdere correct geformuleerde ontvangers op, gescheiden door een komma</li>\n";
        	$error=1;
    	}
	}
	if($err!="")
	{
    	echo($err);
    	return false;
	}
	else
	return true;
}


function geterror($id)
{
	switch($id)
	{
    	case '1':
        	return 'Het bestand is te groot';
    	break;
    	case '2':
        	return 'Het bestand is groter dan gespecificeerd in HTML form MAX_FILE_SIZE';
    	break;
    	case '3':
        	return 'Het bestand is gedeeltelijk geupload';
    	break;
    	case '4':
        	return 'Er is geen upload aangekomen';
    	break;
	}
}


function getstring($charno)
{
	switch($charno)
	{
    	case '0':
        	return 'text/plain';
    	break;
    	case '1':
        	return 'text/html';
    	break;
    	default:
        	return 'text/plain';
    	break;
	}	
}


function getcharset($charno)
{
	switch($charno)
	{
    	case '0':
        	return 'us-ascii';
    	break;
    	case '1':
        	return 'utf-8';
    	break;
    	default:
        	return 'us-ascii';
    	break;
	}
}


if(!empty($_POST))
{
 	if(verify_field()==true)
 	{
    	$header="From: ".addslashes($_POST['send_name'])." <".addslashes($_POST['send_mail']).">\r\n";
    	$header.="To: ".$_POST['rec_name']."\r\n";
    	if(strlen($_POST['subject'])>0)
    	$header.="Subject: ".$_POST['subject']."\r\n";
    	$header.="Return-Path: <".$_POST['send_mail'].">\r\n";
    	$header.="Mime-Version: 1.0\r\n";
    	if(!empty($_FILES))
    	{
         	$err_files="";
        	$header.="Content-Type: multipart/mixed; boundary=\"grensje\"\r\n\r\n";
        	$body="--grensje\r\nContent-Type: ".getstring($_POST['format'])."; charset=\"".getcharset($_POST['charset'])."\"\r\n\r\n";
        	$body.=$_POST['msg']."\r\n\r\n";
        	if(($num_files=count($_FILES))<=$max_atts)
        	{
            	while(list($key,$val)=each($_FILES))
            	{
                	if(empty($_FILES[$key]['name']))
                	{
                    	$err_files.="<li>U hebt uploadveld ".$key." leeggelaten</li>\n";
                    	$illegal=1;
                	}
                	else if($_FILES[$key]['error']!=0)
                	{
                    	$err_files.="<li>Er is een fout opgetreden bij het uploaden van ".$_FILES[$key]['name']."<br>".geterror($_FILES[$key]['error'])."</li>\n";
                    	$illegal=1;
                	}
                	else
                	{
                    	if(!in_array($_FILES[$key]['type'],$allowed))
                    	{
                        	$err_files.="<li>Illegaal bestandtype in ".$_FILES[$key]['name'].": ".$_FILES[$key]['type']."</li>\n";
                        	$illegal=1;
                    	}
                    	else
                    	{
                        	$body.="--grensje\r\nContent-Type: ".$_FILES[$key]['type']."\r\n";
                        	$body.="Content-Disposition: attachment; filename=\"".$_FILES[$key]['name']."\"\r\n";
                        	$body.="Content-Transfer-Encoding: base64\r\n\r\n";
                        	$body.=base64_encode(file_get_contents($_FILES[$key]['tmp_name']))."\r\n\r\n";	
                    	}            	
                	}
            	}
        	}
        	else
        	{
            	$err_files.="<li>Meer bestanden geupload dan toegestaan (".$num_files." tegenover ".$max_atts." toegestane bestanden)</li>\n";
            	$illegal=1;
        	}
        	$body.="--grensje--";
    	}
    	else
    	$header.="Content-Type: ".getstring($_POST['format'])."; charset=\"".getstring($_POST['charset'])."\"\r\n\r\n";
    	if(isset($illegal))
    	echo($err_files);
    	else
    	{
        	if(!mail($_POST['rec_name'],$_POST['subject'],$body,$header))
        	echo("<li>Er is een fout opgetreden bij het verzenden van het bericht</li>\n");
        	else
       	echo("<meta http-equiv=refresh content=0;URL=gelukt.html /> \n"); END;
    	}
	}
}


?>
<html>
<head>
<script language="JavaScript">


var counter=0;
var dis=0;
var max=<?php echo($max_atts); ?>;
var fileArr=new Array();


function addFile()
{
	if(dis<max)
	{
    	document.getElementById('lijst').innerHTML+="<span id='"+counter+"'><input type='file' name='input"+counter+"'><input type='button' value='x' onclick=\"javascript:delFile("+counter+")\"><br></span>";
    	counter++;
    	dis++;
	}
	else
	alert("U mag maximaal "+max+" bestanden uploaden");
}


function delFile(id)
{
	document.getElementById(id).innerHTML="";
	fileArr[id]=null;
	dis--;
}


</script>
</head>
<body>
<form method="post" action="<?php echo($_SERVER['PHP_SELF']); ?>" enctype="multipart/form-data">
<table>
  <tr>
	<td>Uw naam </td>
	<td>:</td>
	<td><input name="send_name" type="text" id="send_name" /></td>
  </tr>
  <tr>
	<td>Uw e-mailadres </td>
	<td>:</td>
	<td><input name="send_mail" type="text" id="send_mail" /></td>
  </tr>
  <tr>
	<td>Naar</td>
	<td>:</td>
	</tr><tr>
	<td colspan="3"><input name="rec_name" type="radio" value="[email protected]" checked="checked" />
  	Pascal </td>
  </tr>
  <tr>
	<td>Onderwerp</td>
	<td>:</td>
	<td><input name="subject" type="text" id="subject" /></td>
  </tr>
  <tr>
	<th colspan="3">Bericht</th>
  </tr>
  <tr>
	<td colspan="3"><div align="center">
  	<textarea name="msg" cols="35" rows="5" id="msg"></textarea>
	</div></td>
  </tr>
  <tr>
	<td colspan="3" align="center"><a id="hyper" href="javascript:addFile()">Bijlageveld toevoegen</a></td>
  </tr>
  <tr>
	<td colspan="3" align="center"><div id='lijst'></div></td>
  </tr>


  </tr>


  <tr>
	<td colspan="3"><div align="center">
  	<input type="reset" name="Reset" value="Opnieuw" />
  	<input type="submit" name="Submit2" value="Versturen" />
	</div></td>
  </tr>
</table>
</form>