# Authoritative domain name server
# Copyright (C) 2022  Nguyễn Gia Phong
#
# This file is part of loang configuration.
#
# Loang configuration is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published
# by the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Loang configuration is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with loang configuration.  If not, see <https://www.gnu.org/licenses/>.

{ ... }:
let
  cercleLibreZone = builtins.toFile "cercle.libre.zone" ''
    @ SOA  danh.loang.net. mcsinyx.disroot.org. 2023021702 14400 3600 604800 3600
    @ NS   danh.loang.net.
    @ A    37.205.11.127
    @ AAAA 2a03:3b40:100::1:2
  '';
  sinyxIndyZone = builtins.toFile "sinyx.indy.zone" ''
    @ SOA  danh.loang.net. mcsinyx.disroot.org. 2023022002 14400 3600 604800 3600
    @ NS   danh.loang.net.
    @ A    37.205.11.127
    @ AAAA 2a03:3b40:100::1:2
    * A    37.205.11.127
    * AAAA 2a03:3b40:100::1:2
  '';
  stripromanPirateZone = builtins.toFile "striproman.pirate.zone" ''
    @ SOA  danh.loang.net. mcsinyx.disroot.org. 2023022023 14400 3600 604800 3600
    @ NS   danh.loang.net.
    @ A    37.205.11.127
    @ AAAA 2a03:3b40:100::1:2
  '';
in {
  networking.firewall = {
    allowedTCPPorts = [ 53 ];
    allowedUDPPorts = [ 53 ];
  };

  services.knot = {
    enable = true;
    extraConfig = ''
      server:
          listen: 0.0.0.0@53
          listen: ::@53

      remote:
        - id: secondary
          address: 204.87.183.53@53
          address: 2607:7c80:54:6::53@53

      log:
        - target: syslog
          any: info

      acl:
        - id: lego
          address: 127.0.0.1
          address: ::1
          key: lego
          action: update
          update-type: TXT
          update-owner: key
        - id: secondary
          address: 204.87.183.53
          address: 2607:7c80:54:6::53
          action: transfer
        - id: xarvos
          key: xrvs.net
          action: update
          update-owner: key

      template:
        - id: default
          storage: /var/lib/knot/zones
          file: %s
          dnssec-signing: on

      zone:
        - domain: cercle.libre
          file: ${cercleLibreZone}
          dnssec-signing: off
        - domain: cnx.gdn
          notify: secondary
          acl: secondary
        - domain: loang.net
          notify: secondary
          acl: lego
          acl: secondary
        - domain: sinyx.indy
          file: ${sinyxIndyZone}
          dnssec-signing: off
        - domain: striproman.pirate
          file: ${stripromanPirateZone}
          dnssec-signing: off
        - domain: xrvs.net
          notify: secondary
          acl: secondary
          acl: xarvos
    '';
    keyFiles = [
      "/var/lib/knot/keys/update/lego"
      "/var/lib/knot/keys/update/xrvs.net"
    ];
  };
}