#
# This is an example VCL file for Varnish.
#
# It does not do anything by default, delegating control to the
# builtin VCL. The builtin VCL is called when there is no explicit
# return statement.
#
# See the VCL chapters in the Users Guide at https://www.varnish-cache.org/docs/
# and https://www.varnish-cache.org/trac/wiki/VCLExamples for more examples.

# Marker to tell the VCL compiler that this VCL has been adapted to the
# new 4.0 format.
vcl 4.0;

# Default backend definition. Set this to point to your content server.
backend default {
    .host = "127.0.0.1";
    .port = "81";
}
backend onedomain {
	.host = "127.0.0.1";
	.port = "81";
}
backend newdomain {
	.host = "127.0.0.1";
	.port = "81";
}

acl purge {
	"localhost";
}

sub vcl_recv {
    # Happens before we check if we have this in cache already.
    #
    # Typically you clean up the request here, removing cookies you don't need,
    # rewriting the request, etc.

	#Bypass large files
	if (req.http.x-pipe-mark && req.restarts > 0) {
		return(pipe);
	}

	# all domains in here will return a "pass" which means they won't be cached
	if (req.http.host ~ "(www\.)?(domain1.com|domain2.com)") {
		return (pass);
	}
	#else check if something we're going to cache
	else if(req.http.host ~ "(www\.)?(onedomain.nu)") {
        set req.http.host = "onedomain.com";
		set req.backend_hint = onedomain;
	}
	else if(req.http.host ~ "(www\.)?(newdomain.com)") {
		set req.http.host = "newdomain.com";
		set req.backend_hint = newdomain;
	}
	else {
		return (pass);
	}

	if (req.method == "PURGE") {
		if (client.ip !~ purge) {
			return (synth(405));
		}
		if (req.http.X-Purge-Method == "regex") {
			ban("req.url ~ " + req.url + " && req.http.host ~ " + req.http.host);
			return (synth(200, "Banned."));
		}
	else 	{
			return (purge);
			}
	}
	#Drop cookies
	set req.http.cookie = regsuball(req.http.cookie, "wp-settings-\d+=[^;]+(; )?", "");
	set req.http.cookie = regsuball(req.http.cookie, "wp-settings-time-\d+=[^;]+(; )?", "");
	set req.http.cookie = regsuball(req.http.cookie, "wordpress_test_cookie=[^;]+(; )?", "");
	if (req.http.cookie == "") {
		unset req.http.cookie;
	}

	#Handle admin login
	if (req.url ~ "wp-admin|wp-login") {
	return (pass);
	}
}

sub vcl_backend_response {
    # Happens after we have read the response headers from the backend.
    #
    # Here you clean the response headers, removing silly Set-Cookie headers
    # and other mistakes your backend does.
}

sub vcl_deliver {
    # Happens when we have all the pieces we need, and are about to send the
    # response to the client.
    #
    # You can do accounting or modifying the final object here.
}