Multiple issues with caching

  • Hi,

    I’ve found multiple issues while using this plugin with heavily cached environment.

    Server: LAMP with nginx, memcached, varnish & load balancer
    WP: v3.6.1 with W3 Total Cache set up (page, db, object, browser, varnish cache enabled)

    First of all: Unique voting based on IP have problem because all votes were saved with internal IP from server. In this case $_SERVER[‘REMOTE_ADDR’] was always ‘127.0.0.1’. Every next user was blocked from rating after first vote on post.

    Solution (not so ideal) – change:

    $ip = $_SERVER['REMOTE_ADDR'];

    to:

    $ip = '';
  if (!empty($_SERVER["HTTP_X_FORWARDED_FOR"])) {
    $ipForwarder = explode(', ', $_SERVER["HTTP_X_FORWARDED_FOR"]);
    $ip = $ipForwarder[0];
  } else {
    $ip = $_SERVER["REMOTE_ADDR"];
  }

    Why not so ideal? Whole companies can have offices hidden after one IP. Is there possibility to add unique votes based on IP & cookies functionality in future?

    Second thing: lack of action hooks in plugin functions. Please add at least action hook on resetting votes. I may want for example add ‘flush cache’ action after votes reset.

    https://www.ads-software.com/plugins/kk-star-ratings/

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