PHP If Java 403 then Die

Extremely simple script that is not working...

[JAB Creations]

An example of the useragent I'm trying to block...

Java/1.4.1_04

The code I'm using...

<?php
$useragent = $_SERVER['HTTP_USER_AGENT'];
if ($useragent=="Java/"){header("HTTP/1.0 403");die();}
?>

I'm using two = (==) to partially match the useragent. If it's Java then I want it blocked. I'm not going to try to block every specific version of Java/anything.

These bots using/posing/etc as Java come in various versions and so I simply want to block any useragents with "Java/" in the useragent.

- John

[mykel79]

In PHP == doesn't mean you're partially matching, it's normal matching.
One = is assigning a value.
Two = (==) is matching.

For your purpose, you can use any of a number of functions, e.g. strstr.
[pl.php.net...]

[adb64]

Hello John,

I use my .htaccess file to block these spiders:

# 
# Deny bad behaving spiders 
# 
SetEnvIfNoCase User-Agent ^Java BadGuy 
# 
# Some files however can be accessed by the Bad Guys 
# 
SetEnvIf Request_URI "^(/error403\.php¦/robots\.txt)$" AllowBadGuy 
# 
# Ban the bad guys defined above, except for the files they are allowed to see 
# 
<Files *> 
Order Deny,Allow 
Deny from env=BadGuy 
Allow from env=AllowBadGuy 
</Files> 

In my list of bad spiders I have:

SetEnvIfNoCase User-Agent ^NaverBot¦^TurnitinBot¦^ConveraCrawler¦^OmniExplorer_Bot¦^sohu¦^ichiro¦^Twiceler¦^voyager¦BecomeBot BadGuy 

Change the broken pipe (¦) for a closed pipe character.

Regards,
Arjan

[edited by: jatar_k at 6:27 pm (utc) on July 2, 2006]
[edit reason] removed a couple bots to fix sidescroll [/edit]

[jatar_k]

if you go the .htaccess route you may want to look at this monster

A Close to perfect .htaccess ban list [webmasterworld.com]

and all it's following threads

[JAB Creations]

Got it...

else if (eregi("Java/", "$useragent")){header("HTTP/1.0 403");die();}

Thanks guys!

- John