dnschain: fix build

pkgs/servers/dnschain/default.nix

@@ -1,11 +1,51 @@
-{ stdenv, nodePackages }:
-
-# to update dnschain, run npm2nix package.json package.nix, and
-# then add "coffee-script" manually as a dependecy for "dnschain"
-# in package.nix.
+{ stdenv, fetchFromGitHub, callPackage, makeWrapper, openssl }:
 
 let
-  np = nodePackages.override { generated = ./package.nix; self = np; };
-in
+  nodePackages = callPackage (import ../../top-level/node-packages.nix) {
+    self = nodePackages;
+    generated = ./package.nix;
+  };
 
-np.dnschain
+in nodePackages.buildNodePackage rec {
+  name    = "dnschain-${version}";
+  version = "0.5.3";
+
+  src = fetchFromGitHub {
+    owner  = "okTurtles";
+    repo   = "dnschain";
+    rev    = "a8d477f9ad33d7790f94ffc563e2205823e62515";
+    sha256 = "0j5glbxf0fxnxl4l1lysb3a619b18rk0l1ks57wd255llc2mw7zy";
+  };
+
+  deps = with nodePackages; [
+    by-spec."bluebird"."2.9.9"
+    by-spec."bottleneck"."1.5.x"
+    by-spec."event-stream"."3.2.2"
+    by-spec."express"."4.11.2"
+    by-spec."hiredis"."0.4.1"
+    by-spec."json-rpc2"."0.8.1"
+    by-spec."lodash"."3.1.0"
+    by-spec."native-dns"."git+https://github.com/okTurtles/node-dns.git#08433ec98f517eed3c6d5e47bdf62603539cd402"
+    by-spec."native-dns-packet"."0.1.1"
+    by-spec."nconf"."0.7.1"
+    by-spec."properties"."1.2.1"
+    by-spec."redis"."0.12.x"
+    by-spec."string"."2.0.1"
+    by-spec."winston"."0.8.0"
+    by-spec."superagent"."0.21.0"
+  ];
+
+  buildInputs = [ makeWrapper nodePackages.coffee-script ];
+  postInstall = ''
+      wrapProgram $out/bin/dnschain --suffix PATH : ${openssl.bin}/bin
+  '';
+
+  meta = with stdenv.lib; {
+    description = "A blockchain-based DNS + HTTP server";
+    homepage    = https://okturtles.com/;
+    license     = licenses.mpl20;
+    maintainers = with maintainers; [ rnhmjoj ];
+    platforms   = platforms.unix;
+  };
+
+}

pkgs/top-level/all-packages.nix

@@ -10262,7 +10262,7 @@ with pkgs;
 
   diod = callPackage ../servers/diod { lua = lua5_1; };
 
-  #dnschain = callPackage ../servers/dnschain { };
+  dnschain = callPackage ../servers/dnschain { };
 
   dovecot = callPackage ../servers/mail/dovecot { };
   dovecot_pigeonhole = callPackage ../servers/mail/dovecot/plugins/pigeonhole { };