1 files changed, 148 insertions, 0 deletions
diff --git a/nixos/modules/services/networking/xandikos.nix b/nixos/modules/services/networking/xandikos.nix
new file mode 100644
index 00000000000..4bd45a76e67
--- /dev/null
+++ b/nixos/modules/services/networking/xandikos.nix
@@ -0,0 +1,148 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+let
+  cfg = config.services.xandikos;
+in
+{
+
+  options = {
+    services.xandikos = {
+      enable = mkEnableOption "Xandikos CalDAV and CardDAV server";
+
+      package = mkOption {
+        type = types.package;
+        default = pkgs.xandikos;
+        defaultText = literalExpression "pkgs.xandikos";
+        description = "The Xandikos package to use.";
+      };
+
+      address = mkOption {
+        type = types.str;
+        default = "localhost";
+        description = ''
+          The IP address on which Xandikos will listen.
+          By default listens on localhost.
+        '';
+      };
+
+      port = mkOption {
+        type = types.port;
+        default = 8080;
+        description = "The port of the Xandikos web application";
+      };
+
+      routePrefix = mkOption {
+        type = types.str;
+        default = "/";
+        description = ''
+          Path to Xandikos.
+          Useful when Xandikos is behind a reverse proxy.
+        '';
+      };
+
+      extraOptions = mkOption {
+        default = [];
+        type = types.listOf types.str;
+        example = literalExpression ''
+          [ "--autocreate"
+            "--defaults"
+            "--current-user-principal user"
+            "--dump-dav-xml"
+          ]
+        '';
+        description = ''
+          Extra command line arguments to pass to xandikos.
+        '';
+      };
+
+      nginx = mkOption {
+        default = {};
+        description = ''
+          Configuration for nginx reverse proxy.
+        '';
+
+        type = types.submodule {
+          options = {
+            enable = mkOption {
+              type = types.bool;
+              default = false;
+              description = ''
+                Configure the nginx reverse proxy settings.
+              '';
+            };
+
+            hostName = mkOption {
+              type = types.str;
+              description = ''
+                The hostname use to setup the virtualhost configuration
+              '';
+            };
+          };
+        };
+      };
+
+    };
+
+  };
+
+  config = mkIf cfg.enable (
+    mkMerge [
+      {
+        meta.maintainers = with lib.maintainers; [ _0x4A6F ];
+
+        systemd.services.xandikos = {
+          description = "A Simple Calendar and Contact Server";
+          after = [ "network.target" ];
+          wantedBy = [ "multi-user.target" ];
+
+          serviceConfig = {
+            User = "xandikos";
+            Group = "xandikos";
+            DynamicUser = "yes";
+            RuntimeDirectory = "xandikos";
+            StateDirectory = "xandikos";
+            StateDirectoryMode = "0700";
+            PrivateDevices = true;
+            # Sandboxing
+            CapabilityBoundingSet = "CAP_NET_RAW CAP_NET_ADMIN";
+            ProtectSystem = "strict";
+            ProtectHome = true;
+            PrivateTmp = true;
+            ProtectKernelTunables = true;
+            ProtectKernelModules = true;
+            ProtectControlGroups = true;
+            RestrictAddressFamilies = "AF_INET AF_INET6 AF_UNIX AF_PACKET AF_NETLINK";
+            RestrictNamespaces = true;
+            LockPersonality = true;
+            MemoryDenyWriteExecute = true;
+            RestrictRealtime = true;
+            RestrictSUIDSGID = true;
+            ExecStart = ''
+              ${cfg.package}/bin/xandikos \
+                --directory /var/lib/xandikos \
+                --listen-address ${cfg.address} \
+                --port ${toString cfg.port} \
+                --route-prefix ${cfg.routePrefix} \
+                ${lib.concatStringsSep " " cfg.extraOptions}
+            '';
+          };
+        };
+      }
+
+      (
+        mkIf cfg.nginx.enable {
+          services.nginx = {
+            enable = true;
+            virtualHosts."${cfg.nginx.hostName}" = {
+              locations."/" = {
+                proxyPass = "http://${cfg.address}:${toString cfg.port}/";
+              };
+            };
+          };
+        }
+      )
+    ]
+  );
+}