From a42e1d54948b796458b094e79b5acb3dfee50ed7 Mon Sep 17 00:00:00 2001
From: "William A. Kennington III" <william@wkennington.com>
Date: Thu, 13 Mar 2014 03:45:57 -0500
Subject: [PATCH] notbit: Add systemd service for a system daemon

---
 nixos/modules/misc/ids.nix                   |  2 +
 nixos/modules/module-list.nix                |  1 +
 nixos/modules/services/networking/notbit.nix | 93 ++++++++++++++++++++
 3 files changed, 96 insertions(+)
 create mode 100644 nixos/modules/services/networking/notbit.nix

diff --git a/nixos/modules/misc/ids.nix b/nixos/modules/misc/ids.nix
index b27739c99ce0..970b9caa2f9d 100644
--- a/nixos/modules/misc/ids.nix
+++ b/nixos/modules/misc/ids.nix
@@ -119,6 +119,7 @@
       kippo = 108;
       jenkins = 109;
       systemd-journal-gateway = 110;
+      notbit = 111;
 
       # When adding a uid, make sure it doesn't match an existing gid.
 
@@ -216,6 +217,7 @@
       kippo = 108;
       jenkins = 109;
       systemd-journal-gateway = 110;
+      notbit = 111;
 
       # When adding a gid, make sure it doesn't match an existing uid.
 
diff --git a/nixos/modules/module-list.nix b/nixos/modules/module-list.nix
index b419942057ac..326ce8e15b1a 100644
--- a/nixos/modules/module-list.nix
+++ b/nixos/modules/module-list.nix
@@ -179,6 +179,7 @@
   ./services/networking/minidlna.nix
   ./services/networking/nat.nix
   ./services/networking/networkmanager.nix
+  ./services/networking/notbit.nix
   ./services/networking/ntopng.nix
   ./services/networking/ntpd.nix
   ./services/networking/oidentd.nix
diff --git a/nixos/modules/services/networking/notbit.nix b/nixos/modules/services/networking/notbit.nix
new file mode 100644
index 000000000000..83dafd083791
--- /dev/null
+++ b/nixos/modules/services/networking/notbit.nix
@@ -0,0 +1,93 @@
+{ config, pkgs, ... }:
+
+let
+  cfg = config.services.notbit;
+  varDir = "/var/lib/notbit";
+  
+  sendmail = pkgs.stdenv.mkDerivation {
+    name = "notbit-wrapper";
+    buildInputs = [ pkgs.makeWrapper ];
+    propagatedBuildInputs = [ pkgs.notbit ];
+    buildCommand = ''
+      mkdir -p $out/bin
+      makeWrapper ${pkgs.notbit}/bin/notbit-sendmail $out/bin/notbit-system-sendmail \
+        --set XDG_RUNTIME_DIR ${varDir}
+    '';
+  };
+in
+
+with pkgs.lib;
+{
+
+  ### configuration
+
+  options = {
+
+    services.notbit = {
+
+      enable = mkOption {
+        type = types.uniq types.bool;
+        default = false;
+        description = ''
+          Enables the notbit daemon and provides a sendmail binary named `notbit-system-sendmail` for sending mail over the system instance of notbit. Users must be in the notbit group in order to send mail over the system notbit instance. Currently mail recipt is not supported.
+        '';
+      };
+
+      port = mkOption {
+        type = types.uniq types.int;
+        default = 8443;
+        description = "The port which the daemon listens for other bitmessage clients";
+      };
+
+      nice = mkOption {
+        type = types.uniq types.int;
+        default = 10;
+        description = "Set the nice level for the notbit daemon";
+      };
+
+    };
+
+  };
+
+  ### implementation
+
+  config = mkIf cfg.enable {
+
+    environment.systemPackages = [ pkgs.notbit sendmail ];
+
+    systemd.services.notbit = {
+      description = "Notbit daemon";
+      after = [ "network.target" ];
+      wantedBy = [ "multi-user.target" ];
+      path = [ pkgs.notbit ];
+      environment = { XDG_RUNTIME_DIR = varDir; };
+
+      postStart = ''
+        [ ! -f "${varDir}/addr" ] && notbit-keygen > ${varDir}/addr
+        chmod 0640 ${varDir}/{addr,notbit/notbit-ipc.lock}
+        chmod 0750 ${varDir}/notbit/{,notbit-ipc}
+      '';
+
+      serviceConfig = {
+        Type = "forking";
+        ExecStart = "${pkgs.notbit}/bin/notbit -d -p ${toString cfg.port}";
+        User = "notbit";
+        Group = "notbit";
+        UMask = "0077";
+        WorkingDirectory = varDir;
+        Nice = cfg.nice;
+      };
+    };
+
+    users.extraUsers.notbit = {
+      group = "notbit";
+      description = "Notbit daemon user";
+      home = varDir;
+      createHome = true;
+      uid = config.ids.uids.notbit;
+    };
+
+    users.extraGroups.notbit.gid = config.ids.gids.notbit;
+  };
+
+}