Well I must say, kinda disappointed--I was hoping for some creative ideas. I did find the ideal solutions here.. http://www.kloth.net/internet/bottrap.php
<html>
<head><title> </title></head>
<body>
<p>There is nothing here to see. So what are you doing here ?</p>
<p><a href="http://your.domain.tld/">Go home.</a></p>
<?php
/* whitelist: end processing end exit */
if (preg_match("/10\.22\.33\.44/",$_SERVER['REMOTE_ADDR'])) { exit; }
if (preg_match("Super Tool",$_SERVER['HTTP_USER_AGENT'])) { exit; }
/* end of whitelist */
$badbot = 0;
/* scan the blacklist.dat file for addresses of SPAM robots
to prevent filling it up with duplicates */
$filename = "../blacklist.dat";
$fp = fopen($filename, "r") or die ("Error opening file ... <br>\n");
while ($line = fgets($fp,255)) {
$u = explode(" ",$line);
$u0 = $u[0];
if (preg_match("/$u0/",$_SERVER['REMOTE_ADDR'])) {$badbot++;}
}
fclose($fp);
if ($badbot == 0) { /* we just see a new bad bot not yet listed ! */
/* send a mail to hostmaster */
$tmestamp = time();
$datum = date("Y-m-d (D) H:i:s",$tmestamp);
$from = "[email protected]";
$to = "[email protected]";
$subject = "domain-tld alert: bad robot";
$msg = "A bad robot hit $_SERVER['REQUEST_URI'] $datum \n";
$msg .= "address is $_SERVER['REMOTE_ADDR'], agent is $_SERVER['HTTP_USER_AGENT']\n";
mail($to, $subject, $msg, "From: $from");
/* append bad bot address data to blacklist log file: */
$fp = fopen($filename,'a+');
fwrite($fp,"$_SERVER['REMOTE_ADDR'] - - [$datum] \"$_SERVER['REQUEST_METHOD'] $_SERVER['REQUEST_URI'] $_SERVER['SERVER_PROTOCOL']\" $_SERVER['HTTP_REFERER'] $_SERVER['HTTP_USER_AGENT']\n");
fclose($fp);
}
?>
</body>
</html>
Then to protect pages throw <?php include($DOCUMENT_ROOT . "/blacklist.php"); ?> on the first line of every page.. blacklist.php contains:
<?php
$badbot = 0;
/* look for the IP address in the blacklist file */
$filename = "../blacklist.dat";
$fp = fopen($filename, "r") or die ("Error opening file ... <br>\n");
while ($line = fgets($fp,255)) {
$u = explode(" ",$line);
$u0 = $u[0];
if (preg_match("/$u0/",$_SERVER['REMOTE_ADDR'])) {$badbot++;}
}
fclose($fp);
if ($badbot > 0) { /* this is a bad bot, reject it */
sleep(12);
print ("<html><head>\n");
print ("<title>Site unavailable, sorry</title>\n");
print ("</head><body>\n");
print ("<center><h1>Welcome ...</h1></center>\n");
print ("<p><center>Unfortunately, due to abuse, this site is temporarily not available ...</center></p>\n");
print ("<p><center>If you feel this in error, send a mail to the hostmaster at this site,<br>
if you are an anti-social ill-behaving SPAM-bot, then just go away.</center></p>\n");
print ("</body></html>\n");
exit;
}
?>
I plan to take Scott Chamberlain's advice and to be safe I plan to implement Captcha on the script. If user answers correctly then it'll just die or redirect back to site root. Just for fun I'm throwing the trap in a directory named /admin/ and of coursed adding Disallow: /admin/ to robots.txt.
EDIT: In addition I am redirecting the bot ignoring the rules to this page: http://www.seastory.us/bot_this.htm