feat: add roundcube

feat: flake.lock update

sp-modules/roundcube/module.nix

@@ -0,0 +1,35 @@
+{ config, lib, ... }:
+let
+  domain = config.selfprivacy.domain;
+  cfg = config.selfprivacy.modules.roundcube;
+in
+{
+  options.selfprivacy.modules.roundcube = {
+    enable = lib.mkOption {
+      default = false;
+      type = lib.types.bool;
+    };
+    subdomain = lib.mkOption {
+      default = "roundcube";
+      type = lib.types.strMatching "[A-Za-z0-9][A-Za-z0-9\-]{0,61}[A-Za-z0-9]";
+    };
+  };
+
+  config = lib.mkIf cfg.enable {
+
+  services.roundcube = {
+    enable = true;
+    # this is the url of the vhost, not necessarily the same as the fqdn of
+    # the mailserver
+    hostName = "${cfg.subdomain}.${config.selfprivacy.domain}";
+    extraConfig = ''
+      # starttls needed for authentication, so the fqdn required to match
+      # the certificate
+      $config['smtp_server'] = "tls://${config.mailserver.fqdn}";
+      $config['smtp_user'] = "%u";
+      $config['smtp_pass'] = "%p";
+    '';
+  };
+};
+}
+