# 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 = "xxxxx"
.port = "80";
}


acl purge {
ip range
}

sub vcl_hash {
	hash_data(req.http.cookie);
	return (hash);
}

sub vcl_recv {
	if (req.restarts == 0) {
		if (req.http.X-forwarded-For) {
			set req.http.X-Forwarded-For =
			req.http.X-Forwarded-For + ", " + client.ip;
		} else {
			set req.http.X-Forwarded-For = client.ip;
		}
	}

	if (req.request == "PURGE") {
		if (!client.ip ~ purge) {
			error 405 "Not allowed.";
		}
		return(lookup);
	}
}

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

sub vcl_hit {
	if (req.request == "PURGE") {
		set obj.ttl = 0s;
		error 200 "Purged.";
	}
}
sub vcl_miss {
	if (req.request == "PURGE") {
		error 404 "Not in cache.";
	}
}