redirect to current page wp-login

I am not very advanced in php.
I found function that i can use in WP header - then when login from “small green box” in header user stay on page from that he try to login.
Here is my page with WP: http://www.computers-and-control.com/service/manuals/

Now i have other issue, i copied file /wp-login.php to /wp-logincc.php this new file is used for login in my template WP-Download Manager - when click file - that need login before download than is used /wp-logincc.php for function login.

Problem is that after login from wp-logincc.php i am redirected to “Dashboard/Admin Panel” - i would go back to the subpage i come from.
I use different subpages for downloading files with required login and allways need come back to this one i come from.

I try in my wp-logincc.php code:

enter code here
    <?php
    /**
    * WordPress User Page
    *
    * Handles authentication, registering, resetting passwords, forgot password,
    * and other user handling.
    *
    * @package WordPress
    */
    /** Make sure that the WordPress bootstrap has run before continuing. */
    require( dirname(__FILE__) . '/wp-load.php' );
    // dankam tu cos ewentualnie zmienic ---- Redirect to https login if forced to    use      SSL
    $dankam_aaa = apply_filters( 'fromwhereyoucame', $fromwhereyoucame );
    function fromwhereyoucame( $link ) {
    $currenturl = 'http://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];
    if ( !is_user_logged_in() )
    $link = str_replace( '">', '?redirect_to=' . urlencode( $currenturl ) . '">', $link );
    else
    $link = str_replace( '">', '&redirect_to=' . urlencode( $currenturl ) . '">', $link );
    return $link;
    }               
    if ( force_ssl_admin() && ! is_ssl() && $dankam_aaa ) {
    if ( 0 === strpos($_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();
    }
    }

===========================END CODE

But this do nothing in wp-logincc.php

(But this enclosed function works in “green box”)

Please help to modify wp-logincc.php

Read more here: redirect to current page wp-login