# This tests whether UPnP port mappings can be created using Miniupnpd
# and Miniupnpc.
# It runs a Miniupnpd service on one machine, and verifies
# a client can indeed create a port mapping using Miniupnpc. If
# this succeeds an external client will try to connect to the port
# mapping.

import ./make-test-python.nix ({ pkgs, ... }:

let
  internalRouterAddress = "192.168.3.1";
  internalClient1Address = "192.168.3.2";
  externalRouterAddress = "80.100.100.1";
  externalClient2Address = "80.100.100.2";
in
{
  name = "upnp";
  meta = with pkgs.lib.maintainers; {
    maintainers = [ bobvanderlinden ];
  };

  nodes =
    {
      router =
        { pkgs, nodes, ... }:
        { virtualisation.vlans = [ 1 2 ];
          networking.nat.enable = true;
          networking.nat.internalInterfaces = [ "eth2" ];
          networking.nat.externalInterface = "eth1";
          networking.firewall.enable = true;
          networking.firewall.trustedInterfaces = [ "eth2" ];
          networking.interfaces.eth1.ipv4.addresses = [
            { address = externalRouterAddress; prefixLength = 24; }
          ];
          networking.interfaces.eth2.ipv4.addresses = [
            { address = internalRouterAddress; prefixLength = 24; }
          ];
          services.miniupnpd = {
            enable = true;
            externalInterface = "eth1";
            internalIPs = [ "eth2" ];
            appendConfig = ''
              ext_ip=${externalRouterAddress}
            '';
          };
        };

      client1 =
        { pkgs, nodes, ... }:
        { environment.systemPackages = [ pkgs.miniupnpc pkgs.netcat ];
          virtualisation.vlans = [ 2 ];
          networking.defaultGateway = internalRouterAddress;
          networking.interfaces.eth1.ipv4.addresses = [
            { address = internalClient1Address; prefixLength = 24; }
          ];
          networking.firewall.enable = false;

          services.httpd.enable = true;
          services.httpd.virtualHosts.localhost = {
            listen = [{ ip = "*"; port = 9000; }];
            adminAddr = "foo@example.org";
            documentRoot = "/tmp";
          };
        };

      client2 =
        { pkgs, ... }:
        { environment.systemPackages = [ pkgs.miniupnpc ];
          virtualisation.vlans = [ 1 ];
          networking.interfaces.eth1.ipv4.addresses = [
            { address = externalClient2Address; prefixLength = 24; }
          ];
          networking.firewall.enable = false;
        };
    };

  testScript =
    { nodes, ... }:
    ''
      start_all()

      # Wait for network and miniupnpd.
      router.wait_for_unit("network-online.target")
      # $router.wait_for_unit("nat")
      router.wait_for_unit("firewall.service")
      router.wait_for_unit("miniupnpd")

      client1.wait_for_unit("network-online.target")

      client1.succeed("upnpc -a ${internalClient1Address} 9000 9000 TCP")

      client1.wait_for_unit("httpd")
      client2.wait_until_succeeds("curl -f http://${externalRouterAddress}:9000/")
    '';

})