I am developing a system where users would have "Form Posts" or GET Url strings on their own web sites.
What I am having great difficulty with is controlling which sites POST to my system.
Of course, you might think: That's easy nate, just put a hidden field in your form and pass it through the post. Unfortunately, anyone can copy the form and post from anywhere; even their own HTML on their own PC, without the need of a web site.
so I need to be able to Detect "LIKE HTTP_REFERRER" from POST. It seems HTTP_REFERRER does not work with POST.
Any suggestions? Are there hidden variables in my post which show the URL that the form was posted from? I need to be able to detect this without the user being able to control it. That's the whole idea.
Thanks 🙂
Credits to whoever can help me.
