Redirect returning users to a certain page?

Question

Is there a way to redirect users returning to the site who are already logged in? Assuming something like:

function returning_redirect()
{
   //code here
}

add_action('auth_cookie_valid', 'returning_redirect');

But I can't seem to get any variation of that to work. Thanks!

Answer 1

function redirect_user() {    
        if ( is_user_logged_in() ) {
           wp_redirect( 'http://yoursite.com/page/' );
           exit;
        }
}
add_action( 'init', 'redirect_user' );

This will redirect the user to the page of your choice if they are logged in. It might be necessary to add a conditional that checks to make sure the user isn't already on that page, to avoid a continuous redirect loop.

Answer 2

A bit crude but...

function returning_redirect($a) {
  remove_action('auth_cookie_valid', 'returning_redirect');
  if (is_user_logged_in()) {
    if (parse_url($_SERVER['HTTP_REFERER'], PHP_URL_HOST) !== parse_url(site_url(), PHP_URL_HOST)) {
        wp_redirect(site_url('page'));
        exit;
    }
  }
  add_action('auth_cookie_valid', 'returning_redirect');
}
add_action('auth_cookie_valid', 'returning_redirect');

You are checking the HTTP_REQUEST header for a match against the server host name.

Caveats:

• That will not work on a server with multiple sub-directory installs like http://site.com/wordpress and http://site.com/wordpress2 because that will only check the site.com part. If that is your circumstance you will need something more complicated.
• $_SERVER['HTTP_REFERER'] is easily spoofed, but if there are no security issues that should be no problem.
• I expect that this is is going to be an annoying feature of your site.