server.nix/caddy.nix

{ config
, pkgs
, inputs
, settings
, ...
}:
let
  elementClient = pkgs.element-web.override {
    conf = {
      default_server_config.default_server_name = "catnip.ee";
      element_call.use_exclusively = true;

      features = {
        feature_video_rooms = true;
        feature_element_call_video_rooms = true;
      };
    };
  };

  synapse-admin = pkgs.synapse-admin.override {
    baseUrl = "https://matrix.catnip.ee";
  };
in
{
  systemd.services.caddy = {
    serviceConfig = {
      # Required to use ports < 1024
      AmbientCapabilities = "cap_net_bind_service";
      CapabilityBoundingSet = "cap_net_bind_service";
      EnvironmentFile = "/etc/secrets/caddy.env";
      TimeoutStartSec = "5m";
    };
  };

  services.caddy = {
    enable = true;
    email = "ssl@catnip.ee";

    package = pkgs.caddy.withPlugins {
      # https://github.com/NixOS/nixpkgs/pull/358586#issuecomment-2564016652
      plugins = [ "github.com/caddy-dns/cloudflare@v0.0.0-20240703190432-89f16b99c18e" ];
      hash = "sha256-kbTKCPjjIGRZZ550lBg0c5Ye4AK4o5yCRynBIvCLYkQ=";
    };

    globalConfig = ''
      metrics

      admin 0.0.0.0:2019
    '';

    logFormat = ''
      output file ${config.services.caddy.logDir}/access.log {
        mode 640
      }
    '';

    virtualHosts = {
      "kaya.ee".extraConfig = ''
        tls {
          dns cloudflare {env.CLOUDFLARE_API_TOKEN}
          resolvers 1.1.1.1
        }

        respond owo
      '';

      "http://syncthing.internal".extraConfig = ''
        @local remote_ip private_ranges 100.64.0.0/10
        reverse_proxy @local http://${config.services.syncthing.guiAddress}
      '';
      "http://files.internal".extraConfig = ''
        @local remote_ip private_ranges 100.64.0.0/10
        root * /mnt/media
        file_server @local browse {
          hide .Trash-1000
        }
      '';

      "files.catnip.ee".extraConfig = ''
        tls {
          dns cloudflare {env.CLOUDFLARE_API_TOKEN}
          resolvers 1.1.1.1
        }

        basic_auth {
         mrow {env.FILES_PASSWORD_HASH}
        }

        root * /mnt/media
        file_server browse {
          hide .Trash-1000
        }
      '';

      "chat.catnip.ee".extraConfig = ''
        tls {
          dns cloudflare {env.CLOUDFLARE_API_TOKEN}
          resolvers 1.1.1.1
        }

        root * ${elementClient}
        file_server
      '';
      "synapse-admin.catnip.ee".extraConfig = ''
        tls {
          dns cloudflare {env.CLOUDFLARE_API_TOKEN}
          resolvers 1.1.1.1
        }

        root * ${synapse-admin}
        file_server
      '';
      "matrix.catnip.ee".extraConfig = ''
        tls {
          dns cloudflare {env.CLOUDFLARE_API_TOKEN}
          resolvers 1.1.1.1
        }

        reverse_proxy :${toString settings.ports.synapse}

        redir /telegram /telegram/

        handle /.well-known/matrix/client {
          header Content-Type application/json
          header Access-Control-Allow-Origin *
          respond `{"m.homeserver":{"base_url":"https://matrix.catnip.ee/"}}`
        }
        handle /.well-known/matrix/server {
          header Content-Type application/json
          header Access-Control-Allow-Origin *
          respond `{"m.server": "matrix.catnip.ee:443"}`
        }

        handle /telegram/* {
          reverse_proxy :${toString config.services.mautrix-telegram.settings.appservice.port}
        }
      '';

      "catnip.ee".extraConfig = ''
        tls {
          dns cloudflare {env.CLOUDFLARE_API_TOKEN}
          resolvers 1.1.1.1
        }

        root * ${inputs.catnip-website}
        file_server browse {
          hide .git
        }

        handle /.well-known/matrix/client {
          header Content-Type application/json
          header Access-Control-Allow-Origin *
          respond `{"m.homeserver":{"base_url":"https://matrix.catnip.ee/"}}`
        }
        handle /.well-known/matrix/server {
          header Content-Type application/json
          header Access-Control-Allow-Origin *
          respond `{"m.server": "matrix.catnip.ee:443"}`
        }
      '';
      "www.catnip.ee".extraConfig = ''
        tls {
          dns cloudflare {env.CLOUDFLARE_API_TOKEN}
          resolvers 1.1.1.1
        }

        redir https://catnip.ee{uri} permanent
      '';

      ":80".extraConfig = ''
        respond awawaw
      '';
    };
  };
}