Form submission IP

[thysonj]

I need to be able to identify the IP of the form submitting page. This is the situation. We have an online payments system which redirects to a processing company. The processing company does its thing and then for some asanine reason redirects(actually submits a form) back to our system to finish the payment on our side through a new window. I would rather have them simply redirect back using the parent window for ease of cookie manipulation and such but alas that is not going to happen. So I am faced with trying to ensure that the form submission from the processing company is truly coming from the processing company. Is there any way I can identify the ip of the referring page? I have tried HTTP_REFERRER but that gives me nothing as they use javascript to submit the form. Ideas?

 

[DotNetGnat]

are you looking for something like this:

http://www.a1javascripts.com/user_information/utbleipgrabber/utbleipgrabber.html

or this:

'Get the client IP address

<SCRIPT>
var ip = new java.net.InetAddress.getLocalHost();
var ipStr = new java.lang.String(ip);
document.writeln(ipStr.substring(ipStr.indexOf("/")+1));
</SCRIPT>

-DNG

 

[DotNetGnat]

you may also try something like this:

<script>
window.onerror=null;
document.write(java.net.InetAddress.getLocalHost().getHostAddress())
</script>

-DNG

 

[thysonj]

Doesn't this only work for Mozilla? It doesn't do much for me if I can't use it with IE.

 

[DotNetGnat]

then may be you are looking for this:

<%Response.Write(Request.ServerVariables("remote_host"))%>


-DNG

 

[thysonj]

that wont work either becasue the actual "remote host" is the client machine since it is being posted technically from the client. I need to know what server(IP) the form is coming from. I amthinking it is not even possible if outside of http_referrer.

 

[DotNetGnat]

i think i got confused here...what do you actually mean my server IP. Is the form not on your server??

please clarify things a little bit more...

-DNG