Defined (1)

The function is defined in the following location(s).

/wp-includes/pluggable.php  

function auth_redirect() { 
    // Checks if a user is logged in, if not redirects them to the login page 
 
    $secure = ( is_ssl() || force_ssl_admin() ); 
 
    /** 
     * Filters whether to use a secure authentication redirect. 
     * 
     * @since 3.1.0 
     * 
     * @param bool $secure Whether to use a secure authentication redirect. Default false. 
     */ 
    $secure = apply_filters( 'secure_auth_redirect', $secure ); 
 
    // If https is required and request is http, redirect 
    if ( $secure && !is_ssl() && false !== strpos($_SERVER['REQUEST_URI'], 'wp-admin') ) { 
        if ( 0 === strpos( $_SERVER['REQUEST_URI'], 'http' ) ) { 
            wp_redirect( set_url_scheme( $_SERVER['REQUEST_URI'], 'https' ) ); 
            exit(); 
        } else { 
            wp_redirect( 'https://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'] ); 
            exit(); 
        } 
    } 
 
    /** 
     * Filters the authentication redirect scheme. 
     * 
     * @since 2.9.0 
     * 
     * @param string $scheme Authentication redirect scheme. Default empty. 
     */ 
    $scheme = apply_filters( 'auth_redirect_scheme', '' ); 
 
    if ( $user_id = wp_validate_auth_cookie( '', $scheme) ) { 
        /** 
         * Fires before the authentication redirect. 
         * 
         * @since 2.8.0 
         * 
         * @param int $user_id User ID. 
         */ 
        do_action( 'auth_redirect', $user_id ); 
 
        // If the user wants ssl but the session is not ssl, redirect. 
        if ( !$secure && get_user_option('use_ssl', $user_id) && false !== strpos($_SERVER['REQUEST_URI'], 'wp-admin') ) { 
            if ( 0 === strpos( $_SERVER['REQUEST_URI'], 'http' ) ) { 
                wp_redirect( set_url_scheme( $_SERVER['REQUEST_URI'], 'https' ) ); 
                exit(); 
            } else { 
                wp_redirect( 'https://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'] ); 
                exit(); 
            } 
        } 
 
        return;  // The cookie is good so we're done 
    } 
 
    // The cookie is no good so force login 
    nocache_headers(); 
 
    $redirect = ( strpos( $_SERVER['REQUEST_URI'], '/options.php' ) && wp_get_referer() ) ? wp_get_referer() : set_url_scheme( 'http://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'] ); 
 
    $login_url = wp_login_url($redirect, true); 
 
    wp_redirect($login_url); 
    exit(); 
}