varnish-cache.vcl

backend neogaf_user {
        .host = "php2";
        .port = "80";
        .max_connections = 200;
        .connect_timeout = 600s;
        .first_byte_timeout = 600s;
        .between_bytes_timeout = 600s;
}
/*backend neogaf_guest {
        .host = "php2";
        .port = "80";
        .max_connections = 20;
        .connect_timeout = 600s;
        .first_byte_timeout = 600s;
        .between_bytes_timeout = 600s;
}*/


sub vcl_recv {
        set req.http.host = regsub(req.http.host, "^(.+?):[0-9]+", "\1");

        if (req.url ~ "^/forum/images/") {
                unset req.http.cookie;
                return(lookup);
        }

        if (req.request != "POST" && req.http.cookie !~ "bbuserid" && req.url !~ "^/forum/login.php" && req.url !~ "^/forum/register.php") {
                set req.backend = neogaf_user;
                if (req.http.cookie ~ "bbcache") {
                        set req.http.X-Should-Cache = "yes";
                        return(lookup);
                }
        } else {
                set req.backend = neogaf_user;
        }
        set req.http.X-Should-Cache = "no";
}


sub vcl_fetch {
        if (req.url ~ "\.(jpg|gif|js|css|png)$") {
                set beresp.ttl = 1h;
                set beresp.http.X-Image = "yes";
                return(deliver);
        }
        if (req.http.X-Should-Cache == "yes") {
                set beresp.ttl = 120s;
                return(deliver); // we force it to deliver even though it sets cookies
        }
}

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