I have worked on a little script which can be used to set cookies if you know the location. For example, this code below:
$(window).load(function () {
$('body').append('<iframe src="http://mydomain.com/setcookie?data=abc123" width="1" height="1" frameborder="0"></iframe>');
}); //sets cookie from desired location, you need its exact id/location.
Does anybody know any good method for taking a created cookie and then applying it to all visitors which visits (using this script), but not knowing the location?
I have thought of extracting the created cookie and then taking the information and creating my own php cookie, is this possible? tell me if I'm being unclear or something..
Try Jquery Cookie pluging: https://github.com/carhartl/jquery-cookie it will help you to create cookies in the client-side, you can then use standard PHP to read those cookies in the server-side.
[edit]
You can try to send to the server the URL from where the script was executed:
'<iframe src="http://mydomain.com/setcookie?data=abc123&location=' +
window.location.host + '"...
It should allow you to find where is it coming from, but it is not really secure as If I know a bit of coding I just need to find a trusted host and change for it window.location.host you should better check the request in the server side ($_SERVER['HTTP_REFERER']).