nixos/modules/services/networking/x2goserver.nix

   1 { config, lib, pkgs, ... }:
   2
   3 with lib;
   4
   5 let
   6   cfg = config.services.x2goserver;
   7
   8   defaults = {
   9     superenicer = { enable = cfg.superenicer.enable; };
  10   };
  11   confText = generators.toINI {} (recursiveUpdate defaults cfg.settings);
  12   x2goServerConf = pkgs.writeText "x2goserver.conf" confText;
  13
  14   x2goAgentOptions = pkgs.writeText "x2goagent.options" ''
  15     X2GO_NXOPTIONS=""
  16     X2GO_NXAGENT_DEFAULT_OPTIONS="${concatStringsSep " " cfg.nxagentDefaultOptions}"
  17   '';
  18
  19 in {
  20   imports = [
  21     (mkRenamedOptionModule [ "programs" "x2goserver" ] [ "services" "x2goserver" ])
  22   ];
  23
  24   options.services.x2goserver = {
  25     enable = mkEnableOption (lib.mdDoc "x2goserver") // {
  26       description = lib.mdDoc ''
  27         Enables the x2goserver module.
  28         NOTE: This will create a good amount of symlinks in `/usr/local/bin`
  29       '';
  30     };
  31
  32     superenicer = {
  33       enable = mkEnableOption (lib.mdDoc "superenicer") // {
  34         description = lib.mdDoc ''
  35           Enables the SupeReNicer code in x2gocleansessions, this will renice
  36           suspended sessions to nice level 19 and renice them to level 0 if the
  37           session becomes marked as running again
  38         '';
  39       };
  40     };
  41
  42     nxagentDefaultOptions = mkOption {
  43       type = types.listOf types.str;
  44       default = [ "-extension GLX" "-nolisten tcp" ];
  45       description = lib.mdDoc ''
  46         List of default nx agent options.
  47       '';
  48     };
  49
  50     settings = mkOption {
  51       type = types.attrsOf types.attrs;
  52       default = {};
  53       description = lib.mdDoc ''
  54         x2goserver.conf ini configuration as nix attributes. See
  55         `x2goserver.conf(5)` for details
  56       '';
  57       example = literalExpression ''
  58         {
  59           superenicer = {
  60             "enable" = "yes";
  61             "idle-nice-level" = 19;
  62           };
  63           telekinesis = { "enable" = "no"; };
  64         }
  65       '';
  66     };
  67   };
  68
  69   config = mkIf cfg.enable {
  70
  71     # x2goserver can run X11 program even if "services.xserver.enable = false"
  72     xdg = {
  73       autostart.enable = true;
  74       menus.enable = true;
  75       mime.enable = true;
  76       icons.enable = true;
  77     };
  78
  79     environment.systemPackages = [ pkgs.x2goserver ];
  80
  81     users.groups.x2go = {};
  82     users.users.x2go = {
  83       home = "/var/lib/x2go/db";
  84       group = "x2go";
  85       isSystemUser = true;
  86     };
  87
  88     security.wrappers.x2gosqliteWrapper = {
  89       source = "${pkgs.x2goserver}/lib/x2go/libx2go-server-db-sqlite3-wrapper.pl";
  90       owner = "x2go";
  91       group = "x2go";
  92       setuid = false;
  93       setgid = true;
  94     };
  95     security.wrappers.x2goprintWrapper = {
  96       source = "${pkgs.x2goserver}/bin/x2goprint";
  97       owner = "x2go";
  98       group = "x2go";
  99       setuid = false;
 100       setgid = true;
 101     };
 102
 103     systemd.tmpfiles.rules = with pkgs; [
 104       "d /var/lib/x2go/ - x2go x2go - -"
 105       "d /var/lib/x2go/db - x2go x2go - -"
 106       "d /var/lib/x2go/conf - x2go x2go - -"
 107       "d /run/x2go 0755 x2go x2go - -"
 108     ] ++
 109     # x2goclient sends SSH commands with preset PATH set to
 110     # "/usr/local/bin;/usr/bin;/bin". Since we cannot filter arbitrary ssh
 111     # commands, we have to make the following executables available.
 112     map (f: "L+ /usr/local/bin/${f} - - - - ${x2goserver}/bin/${f}") [
 113       "x2goagent" "x2gobasepath" "x2gocleansessions" "x2gocmdexitmessage"
 114       "x2godbadmin" "x2gofeature" "x2gofeaturelist" "x2gofm" "x2gogetapps"
 115       "x2gogetservers" "x2golistdesktops" "x2golistmounts" "x2golistsessions"
 116       "x2golistsessions_root" "x2golistshadowsessions" "x2gomountdirs"
 117       "x2gopath" "x2goprint" "x2goresume-desktopsharing" "x2goresume-session"
 118       "x2goruncommand" "x2goserver-run-extensions" "x2gosessionlimit"
 119       "x2gosetkeyboard" "x2goshowblocks" "x2gostartagent"
 120       "x2gosuspend-desktopsharing" "x2gosuspend-session"
 121       "x2goterminate-desktopsharing" "x2goterminate-session"
 122       "x2goumount-session" "x2goversion"
 123     ] ++ [
 124       "L+ /usr/local/bin/awk - - - - ${gawk}/bin/awk"
 125       "L+ /usr/local/bin/chmod - - - - ${coreutils}/bin/chmod"
 126       "L+ /usr/local/bin/cp - - - - ${coreutils}/bin/cp"
 127       "L+ /usr/local/bin/sed - - - - ${gnused}/bin/sed"
 128       "L+ /usr/local/bin/setsid - - - - ${util-linux}/bin/setsid"
 129       "L+ /usr/local/bin/xrandr - - - - ${xorg.xrandr}/bin/xrandr"
 130       "L+ /usr/local/bin/xmodmap - - - - ${xorg.xmodmap}/bin/xmodmap"
 131     ];
 132
 133     systemd.services.x2goserver = {
 134       description = "X2Go Server Daemon";
 135       wantedBy = [ "multi-user.target" ];
 136       unitConfig.Documentation = "man:x2goserver.conf(5)";
 137       serviceConfig = {
 138         Type = "forking";
 139         ExecStart = "${pkgs.x2goserver}/bin/x2gocleansessions";
 140         PIDFile = "/run/x2go/x2goserver.pid";
 141         User = "x2go";
 142         Group = "x2go";
 143         RuntimeDirectory = "x2go";
 144         StateDirectory = "x2go";
 145       };
 146       preStart = ''
 147         if [ ! -e /var/lib/x2go/setup_ran ]
 148         then
 149           mkdir -p /var/lib/x2go/conf
 150           cp -r ${pkgs.x2goserver}/etc/x2go/* /var/lib/x2go/conf/
 151           ln -sf ${x2goServerConf} /var/lib/x2go/conf/x2goserver.conf
 152           ln -sf ${x2goAgentOptions} /var/lib/x2go/conf/x2goagent.options
 153           ${pkgs.x2goserver}/bin/x2godbadmin --createdb
 154           touch /var/lib/x2go/setup_ran
 155         fi
 156       '';
 157     };
 158
 159     # https://bugs.x2go.org/cgi-bin/bugreport.cgi?bug=276
 160     security.sudo.extraConfig = ''
 161       Defaults  env_keep+=QT_GRAPHICSSYSTEM
 162     '';
 163   };
 164 }