4 files changed, 121 insertions, 0 deletions
diff --git a/nixos/modules/module-list.nix b/nixos/modules/module-list.nix
index c4ee28a95930a..0e72ba8397b67 100644
--- a/nixos/modules/module-list.nix
+++ b/nixos/modules/module-list.nix
@@ -469,6 +469,7 @@
   ./services/misc/synergy.nix
   ./services/misc/sysprof.nix
   ./services/misc/taskserver
+  ./services/misc/tiddlywiki.nix
   ./services/misc/tzupdate.nix
   ./services/misc/uhub.nix
   ./services/misc/weechat.nix
diff --git a/nixos/modules/services/misc/tiddlywiki.nix b/nixos/modules/services/misc/tiddlywiki.nix
new file mode 100644
index 0000000000000..2adc08f6cfedc
--- /dev/null
+++ b/nixos/modules/services/misc/tiddlywiki.nix
@@ -0,0 +1,52 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+let
+
+  cfg = config.services.tiddlywiki;
+  listenParams = concatStrings (mapAttrsToList (n: v: " '${n}=${toString v}' ") cfg.listenOptions);
+  exe = "${pkgs.nodePackages.tiddlywiki}/lib/node_modules/.bin/tiddlywiki";
+  name = "tiddlywiki";
+  dataDir = "/var/lib/" + name;
+
+in {
+
+  options.services.tiddlywiki = {
+
+    enable = mkEnableOption "TiddlyWiki nodejs server";
+
+    listenOptions = mkOption {
+      type = types.attrs;
+      default = {};
+      example = {
+        credentials = "../credentials.csv";
+        readers="(authenticated)";
+        port = 3456;
+      };
+      description = ''
+        Parameters passed to <literal>--listen</literal> command.
+        Refer to <link xlink:href="https://tiddlywiki.com/#WebServer"/>
+        for details on supported values.
+      '';
+    };
+  };
+
+  config = mkIf cfg.enable {
+    systemd = {
+      services.tiddlywiki = {
+        description = "TiddlyWiki nodejs server";
+        after = [ "network.target" ];
+        wantedBy = [ "multi-user.target" ];
+        serviceConfig = {
+          Type = "simple";
+          Restart = "on-failure";
+          DynamicUser = true;
+          StateDirectory = name;
+          ExecStartPre = "-${exe} ${dataDir} --init server";
+          ExecStart = "${exe} ${dataDir} --listen ${listenParams}";
+        };
+      };
+    };
+  };
+}
diff --git a/nixos/tests/all-tests.nix b/nixos/tests/all-tests.nix
index 359f62751b995..363cd640c212e 100644
--- a/nixos/tests/all-tests.nix
+++ b/nixos/tests/all-tests.nix
@@ -245,6 +245,7 @@ in
   pdns-recursor = handleTest ./pdns-recursor.nix {};
   taskserver = handleTest ./taskserver.nix {};
   telegraf = handleTest ./telegraf.nix {};
+  tiddlywiki = handleTest ./tiddlywiki.nix {};
   tinydns = handleTest ./tinydns.nix {};
   tomcat = handleTest ./tomcat.nix {};
   tor = handleTest ./tor.nix {};
diff --git a/nixos/tests/tiddlywiki.nix b/nixos/tests/tiddlywiki.nix
new file mode 100644
index 0000000000000..4a2014a4ec918
--- /dev/null
+++ b/nixos/tests/tiddlywiki.nix
@@ -0,0 +1,67 @@
+import ./make-test.nix ({ ... }: {
+  name = "tiddlywiki";
+  nodes = {
+    default = {
+      services.tiddlywiki.enable = true;
+    };
+    configured = {
+      boot.postBootCommands = ''
+        echo "username,password
+        somelogin,somesecret" > /var/lib/wikiusers.csv
+      '';
+      services.tiddlywiki = {
+        enable = true;
+        listenOptions = {
+          port = 3000;
+          credentials="../wikiusers.csv";
+          readers="(authenticated)";
+        };
+      };
+    };
+  };
+
+  testScript = ''
+    startAll;
+
+    subtest "by default works without configuration", sub {
+      $default->waitForUnit("tiddlywiki.service");
+    };
+
+    subtest "by default available on port 8080 without auth", sub {
+      $default->waitForUnit("tiddlywiki.service");
+      $default->waitForOpenPort(8080);
+      $default->succeed("curl --fail 127.0.0.1:8080");
+    };
+
+    subtest "by default creates empty wiki", sub {
+      $default->succeed("test -f /var/lib/tiddlywiki/tiddlywiki.info");
+    };
+
+    subtest "configured on port 3000 with basic auth", sub {
+      $configured->waitForUnit("tiddlywiki.service");
+      $configured->waitForOpenPort(3000);
+      $configured->fail("curl --fail 127.0.0.1:3000");
+      $configured->succeed("curl --fail 127.0.0.1:3000 --user somelogin:somesecret");
+    };
+
+    subtest "configured with different wikifolder", sub {
+      $configured->succeed("test -f /var/lib/tiddlywiki/tiddlywiki.info");
+    };
+
+    subtest "restart preserves changes", sub {
+      # given running wiki
+      $default->waitForUnit("tiddlywiki.service");
+      # with some changes
+      $default->succeed("curl --fail --request PUT --header 'X-Requested-With:TiddlyWiki' --data '{ \"title\": \"title\", \"text\": \"content\" }' --url 127.0.0.1:8080/recipes/default/tiddlers/somepage ");
+      $default->succeed("sleep 2"); # server syncs to filesystem on timer
+
+      # when wiki is cycled
+      $default->systemctl("restart tiddlywiki.service");
+      $default->waitForUnit("tiddlywiki.service");
+      $default->waitForOpenPort(8080);
+
+      # the change is preserved
+      $default->succeed("curl --fail 127.0.0.1:8080/recipes/default/tiddlers/somepage");
+    };
+  '';
+})