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31.03.07 16:31 #1billygeets Tutorials.de Gastzugang
Hallo an alle Fortegschrittene!
Könnte jemnad von Euch mir bei der Analyse eines Email Form Sciripts helfen?
Mich interessiert vorallem in wiefern ist dieser von "SpamBots" angreifbar oder sicher.
Danke im Vorraus
PHP-Code:<?php
if(is_array($_POST) && isset($_POST)){
# Is the OS Windows or Mac or Linux
if (strtoupper(substr(PHP_OS,0,3)=='WIN')) {
$eol="\r\n";
} elseif (strtoupper(substr(PHP_OS,0,3)=='MAC')) {
$eol="\r";
} else {
$eol="\n";
}
$count=0;
foreach($_POST as $key=>$value){
if($key=="recipient"){$recipient=$value;}
elseif($key=="subject"){$subject=$value;}
elseif($key=="redirect"){$redirect=$value;}
else{
$count++;
if($count % 2 == 0){$color="#e4eff9";}
else{$color="#FFFFFF";}
$html_text.="<tr bgcolor=\"$color\"><td>$key:</td><td>$value</td></tr>";
$text.="$key: $value".$eol.$eol;
}
}
# Only local Email recipeint allow
if($recipient!="emaildress@domain.com"){
die("Sorry, but this recipient Email: <b>$recipient</b> is not allowed");
}
$html_text="<html>
<head>
<title>Email Form</title>
<meta http-equiv=\"Content-Type\" content=\"text/html; charset=iso-8859-1\" />
</head>
<body bgcolor=\"#e4eff9\">".$subject.date(" (Y/m/d H:i:s)")."
<br><table width=\"50%\"cellspacing=\"0\" cellpadding=\"0\">".$html_text."</table>
</body>
</html>";
$text=$subject.date(" (Y/m/d H:i:s)").$eol.$text;
# To Email Address
$emailaddress=$recipient;
# Message Subject
$emailsubject=$subject.date(" (Y/m/d H:i:s)");
# Common Headers
$headers = "From: domain <emaildress@domain.com>".$eol;
# Boundry for marking the split & Multitype Headers
$mime_boundary=md5(time());
$headers .= "MIME-Version: 1.0".$eol;
$headers .= "Content-Type: multipart/related; boundary=\"".$mime_boundary."\"".$eol;
$msg = "";
# Text Version
$msg .= "--".$mime_boundary.$eol;
$msg .= "Content-Type: text/plain; charset=iso-8859-1".$eol;
$msg .= "Content-Transfer-Encoding: base64".$eol;
$msg .= "$add_txt".chunk_split(base64_encode($text)).$eol.$eol;
# HTML Version
$msg .= "--".$mime_boundary.$eol;
$msg .= "Content-Type: text/html; charset=iso-8859-1".$eol;
$msg .= "Content-Transfer-Encoding: base64".$eol;
$msg .= chunk_split(base64_encode($html_text)).$eol.$eol;
# Finished
$msg .= "--".$mime_boundary."--".$eol.$eol; // finish with two eol's for better security. see Injection.
# SEND THE EMAIL
ini_set(sendmail_from,'domain <emaildress@domain.com>'); // the INI lines are to force the From Address to be used !
mail($emailaddress, $emailsubject, $msg, $headers);
ini_restore(sendmail_from);
header("Location: $redirect");
}
?>
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