Redirecting page

Question

If I try accessing a certain page (eg, file.html ) via its URL, I get redirected (eg, to enroll.html ). But if I go through enroll.html I won't get redirected.

Is that possible? If so, how?

Answer 1

You can validate the referer with javascript ( document.referrer ) or with php ( $_SERVER['HTTP_REFERER'] )

if(document.referrer != 'http:// - - - /enroll.html')
    window.location.replace("http:// - - - /enroll.html")

if($_SERVER['HTTP_REFERER'] != 'http:// - - - /enroll.html')
    header('Location: http:// - - - /enroll.html');

https://developer.mozilla.org/en-US/docs/Web/API/Document/referrer http://php.net/manual/en/reserved.variables.server.php

Dont rely solely on this, as it can be easily faked.

Answer 2

You can use document.referrer to achieve this with JS.

Example:

function func() {
    if (document.referrer == "whatever page") {
        //TODO enter code
    } else {
        window.location = "whatever page";
}