gistfile1.txt

# This is a basic VCL configuration file for varnish.  See the vcl(7)
# man page for details on VCL syntax and semantics.
#
# Default backend definition.  Set this to point to your content
# server.
#
backend default {
    .host = "216.14.119.170";
    .port = "80";
}
# This is a basic VCL configuration file for varnish. See the vcl(7)
# man page for details on VCL syntax and semantics.
#
# Default backend definition. Set this to point to your content
# server.
#


sub vcl_recv {
  # mobile devices detection
  call detect_device;
  remove req.http.Etag;

  if (req.url ~ "^/robots.txt$" && req.http.host == "mail.innerbody.com") {
    error 702 "OK";
  }
  if (req.url ~ "^/robots.txt$" && req.http.host == "ads.ib-data.com") {
    error 702 "OK";
  }
  if (req.url ~ "^/robots.txt$" && req.http.host == "ib-data.com") {
    error 702 "OK";
  }
  if (req.url ~ "^/robots.txt$" && req.http.host == "216.14.119.196") {
    error 702 "OK";
  }

  # Remove all cookies that Drupal doesn't need to know about. ANY remaining
  # cookie will cause the request to pass-through to Apache. For the most part
  # we always set the NO_CACHE cookie after any POST request, disabling the
  # Varnish cache temporarily. The session cookie allows all authenticated users
  # to pass through as long as they're logged in.
  if (req.http.Cookie) {
    set req.http.Cookie = ";" + req.http.Cookie;
    set req.http.Cookie = regsuball(req.http.Cookie, "; +", ";");
    set req.http.Cookie = regsuball(req.http.Cookie, ";(SESS[a-z0-9]+|NO_CACHE)=", "; \1=");
    set req.http.Cookie = regsuball(req.http.Cookie, ";[^ ][^;]*", "");
    set req.http.Cookie = regsuball(req.http.Cookie, "^[; ]+|[; ]+$", "");

    if (req.http.Cookie == "") {
      # If there are no remaining cookies, remove the cookie header. If there
      # aren't any cookie headers, Varnish's default behavior will be to cache
      # the page.
      unset req.http.Cookie;
    }
    else {
      # If there are any cookies left (a session or NO_CACHE cookie), do not
      # cache the page. Pass it on to Apache directly.
      return(pass);
    }
  }


}
sub detect_device {
  if (req.http.User-Agent ~ "iP(hone|od)" ||
      req.http.User-Agent ~ "Android") {
    # Define smartphones and tablets
    set req.http.X-Device = "smart";
    set req.http.user-agent = "Mozilla/5.0 (iPhone; CPU iPhone OS 6_1_4 like Mac OS X) AppleWebKit/536.26 (KHTML, like Gecko) Version/6.0 Mobile/10B350 Safari/8536.25";

  } elseif (req.http.User-Agent ~ "iPad") {
   set req.http.X-Device = "desktop";
   set req.http.user-agent = "Mozilla/5.0 (Windows; U; Windows NT 6.1; rv:2.2) Gecko/20110201";

  } elseif (req.http.User-Agent ~ "SymbianOS" ||
            req.http.User-Agent ~ "^BlackBerry" ||
            req.http.User-Agent ~ "^SonyEricsson" ||
            req.http.User-Agent ~ "^Nokia" ||
            req.http.User-Agent ~ "^SAMSUNG" ||
            req.http.User-Agent ~ "^LG") {
    # Define every other mobile device
    set req.http.user-agent = "Mozilla/5.0 (Windows; U; Windows NT 6.1; rv:2.2) Gecko/20110201";
    set req.http.X-Device = "other";
  } else {
   # Define the desktop device
   set req.http.X-Device = "desktop";
   set req.http.user-agent = "Mozilla/5.0 (Windows; U; Windows NT 6.1; rv:2.2) Gecko/20110201";

  }
}
sub vcl_hash {
  hash_data(req.url);
  if (req.http.host) {
    hash_data(req.http.host);
  } else {
    hash_data(server.ip);
  }
  # add User-Agent to hash for mobile devices
  hash_data(req.http.X-Device);
  return (hash);
}

sub vcl_fetch {

  unset beresp.http.Etag;
  #set obj.ttl = 1m;
  unset beresp.http.expires;
  set beresp.ttl = 1w;

  # If the request to the backend returns a code is 5xx, restart the loop
  # If the number of restarts reaches the value of the parameter max_restarts,
  # the request will be error'ed. max_restarts defaults to 4. This prevents
  # an eternal loop in the event that, e.g., the object does not exist at all.
  if (beresp.status >= 500 && beresp.status <= 599){
    return(restart);
  }
# set the vary header
  #set beresp.http.Vary = beresp.http.Vary +  ", User-Agent";


  return(deliver);



}



sub vcl_deliver {
  unset resp.http.Etag;

    #if (resp.http.Vary) {
        set resp.http.Vary = regsub(resp.http.Vary,
                                    "(?i)User-Agent",
                                    "");
    #}
    # set the vary header
    set resp.http.Vary = resp.http.Vary +  ", User-Agent";


        set resp.http.X-Age = resp.http.Age;
        unset resp.http.Age;

        if (obj.hits > 0) {
                set resp.http.X-Cache = "HIT";
        } else {
                set resp.http.X-Cache = "MISS";
        }


}

sub vcl_error {
    if (obj.status == 702) {
        set obj.status = 200;
        set obj.http.Content-Type = "text/plain; charset=utf-8";
        synthetic {"# robots.txt
User-agent: *
Disallow: /"};
    }
    return (deliver);
}