Redirect User to login page

Question

Well I am newbie to WP and the question may sound duplicate but even after trying for few days I can not make this work.

I have integrated a custom login and registration form in my WP site which is different form usual WP login and register forms.

I need to perform the following actions

1. Redirect user to login page if directly accessed any Page URL
2. Redirect user to home page if directly accessed login/register URL.

For redirecting user to home page if tries to access login/register URL after being already logged in, I have used below code

function checkUser(){

$user = wp_get_current_user();
if ( empty( $user->ID ) )
        return false;

    return true;   
}


function __construct(){
    add_action('init', array($this, 'checkUser'));
}

Even if I use wp_redirect(site_url());exit;; that do not seem to work and it goes into infinite loop.

Thanks.

Answer 1

Here is from my previous project. The function is hooked into the template_redirect action. Inside the function there are 2 conditionals. The first is the the one that will redirect logged in user away from the login page. And the other one is to redirect non logged in user to the login page.

// add a redirect for logged out user
add_action('template_redirect', 'redirect_user');

function redirect_user(){
    global $current_user;
    if (is_page('login-page-for-non-logged-in-user') && is_user_logged_in()){
        $return_url = get_bloginfo('url');
        wp_redirect($return_url);
    }
    // this part is untested
    if (!is_page('login-page-for-non-logged-in-user') && !is_user_logged_in()){
        $return_url = get_bloginfo('url');
        wp_redirect($return_url);
    }
    // end of untested part
}