Merge remote-tracking branch 'ni/master'

9 files changed, 325 insertions, 260 deletions

diff --git a/krebs/2configs/reaktor2.nix b/krebs/2configs/reaktor2.nix
index 2ca84f56..afaac9da 100644
--- a/krebs/2configs/reaktor2.nix
+++ b/krebs/2configs/reaktor2.nix
@@ -9,6 +9,48 @@ let
   hooks = pkgs.reaktor2-plugins.hooks;
   commands = pkgs.reaktor2-plugins.commands;
 
+  # bedger - the bier ledger
+  #
+  # logo: http://c.r/bedger2
+  #
+  bedger-add = {
+    pattern = ''^([\H-]*?):?\s+([+-][1-9][0-9]*)\s+(\S+)$'';
+    activate = "match";
+    arguments = [1 2 3];
+    command = {
+      env = {
+        # TODO; get state as argument
+        state_file = "${stateDir}/ledger";
+      };
+      filename = pkgs.writeDash "bedger-add" ''
+        set -x
+        tonick=$1
+        amt=$2
+        unit=$3
+        printf '%s\n  %s  %d %s\n  %s  %d %s\n' "$(date -Id)" "$tonick" "$amt" "$unit" "$_from" "$(expr 0 - "''${amt#+}")" "$unit" >> $state_file
+        ${pkgs.hledger}/bin/hledger -f $state_file bal -N -O csv \
+          | ${pkgs.coreutils}/bin/tail +2 \
+          | ${pkgs.miller}/bin/mlr --icsv --opprint cat \
+          | ${pkgs.gnugrep}/bin/grep "$_from"
+      '';
+    };
+  };
+  bedger-balance = {
+    pattern = "^bier (ballern|bal(an(ce)?)?)$";
+    activate = "match";
+    command = {
+      env = {
+        state_file = "${stateDir}/ledger";
+      };
+      filename = pkgs.writeDash "bedger-balance" ''
+        ${pkgs.hledger}/bin/hledger -f $state_file bal -N -O csv \
+          | ${pkgs.coreutils}/bin/tail +2 \
+          | ${pkgs.miller}/bin/mlr --icsv --opprint cat \
+          | ${pkgs.gnused}/bin/sed 's/^\(.\)/\1‍/'
+      '';
+    };
+  };
+
   taskRcFile = builtins.toFile "taskrc" ''
     confirmation=no
   '';
@@ -93,21 +135,6 @@ let
       ];
       hooks.PRIVMSG = [
         {
-          pattern = "^bier (ballern|bal(an(ce)?)?)$";
-          activate = "match";
-          command = {
-            env = {
-              state_file = "${stateDir}/ledger";
-            };
-            filename = pkgs.writeDash "bier-balance" ''
-              ${pkgs.hledger}/bin/hledger -f $state_file bal -N -O csv \
-                | ${pkgs.coreutils}/bin/tail +2 \
-                | ${pkgs.miller}/bin/mlr --icsv --opprint cat \
-                | ${pkgs.gnused}/bin/sed 's/^\(.\)/\1‍/'
-            '';
-          };
-        }
-        {
           pattern = "^list-locations";
           activate = "match";
           command = {
@@ -205,6 +232,8 @@ let
             '';
           };
         }
+        bedger-add
+        bedger-balance
         hooks.sed
         (generators.command_hook {
           inherit (commands) dance random-emoji nixos-version;
diff --git a/krebs/3modules/default.nix b/krebs/3modules/default.nix
index 7f007048..5ba43658 100644
--- a/krebs/3modules/default.nix
+++ b/krebs/3modules/default.nix
@@ -25,8 +25,7 @@ let
       ./exim.nix
       ./fetchWallpaper.nix
       ./git.nix
-      ./github-hosts-sync.nix
-      ./github-known-hosts.nix
+      ./github
       ./go.nix
       ./hidden-ssh.nix
       ./hosts.nix
diff --git a/krebs/3modules/github-known-hosts.nix b/krebs/3modules/github-known-hosts.nix
deleted file mode 100644
index eec719f2..00000000
--- a/krebs/3modules/github-known-hosts.nix
+++ /dev/null
@@ -1,78 +0,0 @@
-{
-  services.openssh.knownHosts.github = {
-    hostNames = [
-      "github.com"
-      # List generated with (IPv6 addresses are currently ignored):
-      # curl -sS https://api.github.com/meta | jq -r .git[] | grep -v : | nix-shell -p cidr2glob --run cidr2glob | jq -R .
-      "192.30.252.*"
-      "192.30.253.*"
-      "192.30.254.*"
-      "192.30.255.*"
-      "185.199.108.*"
-      "185.199.109.*"
-      "185.199.110.*"
-      "185.199.111.*"
-      "140.82.112.*"
-      "140.82.113.*"
-      "140.82.114.*"
-      "140.82.115.*"
-      "140.82.116.*"
-      "140.82.117.*"
-      "140.82.118.*"
-      "140.82.119.*"
-      "140.82.120.*"
-      "140.82.121.*"
-      "140.82.122.*"
-      "140.82.123.*"
-      "140.82.124.*"
-      "140.82.125.*"
-      "140.82.126.*"
-      "140.82.127.*"
-      "143.55.64.*"
-      "143.55.65.*"
-      "143.55.66.*"
-      "143.55.67.*"
-      "143.55.68.*"
-      "143.55.69.*"
-      "143.55.70.*"
-      "143.55.71.*"
-      "143.55.72.*"
-      "143.55.73.*"
-      "143.55.74.*"
-      "143.55.75.*"
-      "143.55.76.*"
-      "143.55.77.*"
-      "143.55.78.*"
-      "143.55.79.*"
-      "13.114.40.48"
-      "52.192.72.89"
-      "52.69.186.44"
-      "15.164.81.167"
-      "52.78.231.108"
-      "13.234.176.102"
-      "13.234.210.38"
-      "13.236.229.21"
-      "13.237.44.5"
-      "52.64.108.95"
-      "20.201.28.151"
-      "20.205.243.166"
-      "102.133.202.242"
-      "20.248.137.48"
-      "18.181.13.223"
-      "54.238.117.237"
-      "54.168.17.15"
-      "3.34.26.58"
-      "13.125.114.27"
-      "3.7.2.84"
-      "3.6.106.81"
-      "52.63.152.235"
-      "3.105.147.174"
-      "3.106.158.203"
-      "20.201.28.152"
-      "20.205.243.160"
-      "102.133.202.246"
-      "20.248.137.50"
-    ];
-    publicKey = "ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAq2A7hRGmdnm9tUDbO9IDSwBK6TbQa+PXYPCPy6rbTrTtw7PHkccKrpp0yVhp5HdEIcKr6pLlVDBfOLX9QUsyCOV0wzfjIJNlGEYsdlLJizHhbn2mUjvSAHQqZETYP81eFzLQNnPHt4EVVUh7VfDESU84KezmD5QlWpXLmvU31/yMf+Se8xhHTvKSCZIFImWwoG6mbUoWf9nzpIoaSjB+weqqUUmpaaasXVal72J+UX2B+2RPW3RcT0eOzQgqlJL3RKrTJvdsjE3JEAvGq3lGHSZXy28G3skua2SmVi/w4yCE6gbODqnTWlg7+wC604ydGXA8VJiS5ap43JXiUFFAaQ==";
-  };
-}
diff --git a/krebs/3modules/github/default.nix b/krebs/3modules/github/default.nix
new file mode 100644
index 00000000..2df4ba71
--- /dev/null
+++ b/krebs/3modules/github/default.nix
@@ -0,0 +1,6 @@
+{
+  imports = [
+    ./hosts-sync.nix
+    ./known-hosts.nix
+  ];
+}
diff --git a/krebs/3modules/github-hosts-sync.nix b/krebs/3modules/github/hosts-sync.nix
index 71eed6c6..71eed6c6 100644
--- a/krebs/3modules/github-hosts-sync.nix
+++ b/krebs/3modules/github/hosts-sync.nix
diff --git a/krebs/3modules/github/known-hosts.json b/krebs/3modules/github/known-hosts.json
new file mode 100644
index 00000000..694f9adb
--- /dev/null
+++ b/krebs/3modules/github/known-hosts.json
@@ -0,0 +1,58 @@
+[
+  "192.30.252.*",
+  "192.30.253.*",
+  "192.30.254.*",
+  "192.30.255.*",
+  "185.199.108.*",
+  "185.199.109.*",
+  "185.199.110.*",
+  "185.199.111.*",
+  "140.82.112.*",
+  "140.82.113.*",
+  "140.82.114.*",
+  "140.82.115.*",
+  "140.82.116.*",
+  "140.82.117.*",
+  "140.82.118.*",
+  "140.82.119.*",
+  "140.82.120.*",
+  "140.82.121.*",
+  "140.82.122.*",
+  "140.82.123.*",
+  "140.82.124.*",
+  "140.82.125.*",
+  "140.82.126.*",
+  "140.82.127.*",
+  "143.55.64.*",
+  "143.55.65.*",
+  "143.55.66.*",
+  "143.55.67.*",
+  "143.55.68.*",
+  "143.55.69.*",
+  "143.55.70.*",
+  "143.55.71.*",
+  "143.55.72.*",
+  "143.55.73.*",
+  "143.55.74.*",
+  "143.55.75.*",
+  "143.55.76.*",
+  "143.55.77.*",
+  "143.55.78.*",
+  "143.55.79.*",
+  "20.201.28.151",
+  "20.205.243.166",
+  "102.133.202.242",
+  "20.248.137.48",
+  "20.207.73.82",
+  "20.27.177.113",
+  "20.200.245.247",
+  "20.233.54.53",
+  "20.201.28.152",
+  "20.205.243.160",
+  "102.133.202.246",
+  "20.248.137.50",
+  "20.207.73.83",
+  "20.27.177.118",
+  "20.200.245.248",
+  "20.233.54.52"
+]
diff --git a/krebs/3modules/github/known-hosts.nix b/krebs/3modules/github/known-hosts.nix
new file mode 100644
index 00000000..f2705caa
--- /dev/null
+++ b/krebs/3modules/github/known-hosts.nix
@@ -0,0 +1,12 @@
+{ lib, ... }: {
+  services.openssh.knownHosts.github = {
+    hostNames =
+      ["github.com"]
+      ++
+      # List generated with (IPv6 addresses are currently ignored):
+      # curl -sS https://api.github.com/meta | jq -r .git[] | grep -v : | nix-shell -p cidr2glob --run cidr2glob | jq -Rs 'split("\n")|map(select(.!=""))' > known-hosts.json
+      lib.importJSON ./known-hosts.json
+    ;
+    publicKey = "ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAq2A7hRGmdnm9tUDbO9IDSwBK6TbQa+PXYPCPy6rbTrTtw7PHkccKrpp0yVhp5HdEIcKr6pLlVDBfOLX9QUsyCOV0wzfjIJNlGEYsdlLJizHhbn2mUjvSAHQqZETYP81eFzLQNnPHt4EVVUh7VfDESU84KezmD5QlWpXLmvU31/yMf+Se8xhHTvKSCZIFImWwoG6mbUoWf9nzpIoaSjB+weqqUUmpaaasXVal72J+UX2B+2RPW3RcT0eOzQgqlJL3RKrTJvdsjE3JEAvGq3lGHSZXy28G3skua2SmVi/w4yCE6gbODqnTWlg7+wC604ydGXA8VJiS5ap43JXiUFFAaQ==";
+  };
+}
diff --git a/tv/3modules/ejabberd/config.nix b/tv/3modules/ejabberd/config.nix
deleted file mode 100644
index a022bc44..00000000
--- a/tv/3modules/ejabberd/config.nix
+++ /dev/null
@@ -1,129 +0,0 @@
-with import <stockholm/lib>;
-{ config, ... }: let
-
-  # See https://github.com/processone/ejabberd/blob/master/ejabberd.yml.example
-
-  ciphers = concatStringsSep ":" [
-    "ECDHE-ECDSA-AES256-GCM-SHA384"
-    "ECDHE-RSA-AES256-GCM-SHA384"
-    "ECDHE-ECDSA-CHACHA20-POLY1305"
-    "ECDHE-RSA-CHACHA20-POLY1305"
-    "ECDHE-ECDSA-AES128-GCM-SHA256"
-    "ECDHE-RSA-AES128-GCM-SHA256"
-    "ECDHE-ECDSA-AES256-SHA384"
-    "ECDHE-RSA-AES256-SHA384"
-    "ECDHE-ECDSA-AES128-SHA256"
-    "ECDHE-RSA-AES128-SHA256"
-  ];
-
-  protocol_options = [
-    "no_sslv2"
-    "no_sslv3"
-    "no_tlsv1"
-    "no_tlsv1_10"
-  ];
-
-in /* yaml */ ''
-
-  access_rules:
-    announce:
-      - allow: admin
-    local:
-      - allow: local
-    configure:
-      - allow: admin
-    register:
-      - allow
-    s2s:
-      - allow
-    trusted_network:
-      - allow: loopback
-
-  acl:
-    local:
-      user_regexp: ""
-    loopback:
-      ip:
-        - "127.0.0.0/8"
-        - "::1/128"
-        - "::FFFF:127.0.0.1/128"
-
-  certfiles:
-    - /tmp/credentials/certfile
-
-  hosts: ${toJSON config.hosts}
-
-  language: "en"
-
-  listen:
-    -
-      port: 5222
-      ip: "::"
-      module: ejabberd_c2s
-      shaper: c2s_shaper
-      ciphers: ${toJSON ciphers}
-      dhfile: /var/lib/ejabberd/dhfile
-      protocol_options: ${toJSON protocol_options}
-      starttls: true
-      starttls_required: true
-      tls: false
-      tls_compression: false
-      max_stanza_size: 65536
-    -
-      port: 5269
-      ip: "::"
-      module: ejabberd_s2s_in
-      shaper: s2s_shaper
-      max_stanza_size: 131072
-
-  loglevel: 4
-
-  modules:
-    mod_adhoc: {}
-    mod_admin_extra: {}
-    mod_announce:
-      access: announce
-    mod_caps: {}
-    mod_carboncopy: {}
-    mod_client_state: {}
-    mod_configure: {}
-    mod_disco: {}
-    mod_echo: {}
-    mod_bosh: {}
-    mod_last: {}
-    mod_offline:
-      access_max_user_messages: max_user_offline_messages
-    mod_ping: {}
-    mod_privacy: {}
-    mod_private: {}
-    mod_register:
-      access_from: deny
-      access: register
-      ip_access: trusted_network
-      registration_watchers: ${toJSON config.registration_watchers}
-    mod_roster: {}
-    mod_shared_roster: {}
-    mod_stats: {}
-    mod_time: {}
-    mod_vcard:
-      search: false
-    mod_version: {}
-    mod_http_api: {}
-
-  s2s_access: s2s
-  s2s_ciphers: ${toJSON ciphers}
-  s2s_dhfile: /var/lib/ejabberd/dhfile
-  s2s_protocol_options: ${toJSON protocol_options}
-  s2s_tls_compression: false
-  s2s_use_starttls: required
-
-  shaper_rules:
-    max_user_offline_messages:
-      - 5000: admin
-      - 100
-    max_user_sessions: 10
-    c2s_shaper:
-      - none: admin
-      - normal
-    s2s_shaper: fast
-''
diff --git a/tv/3modules/ejabberd/default.nix b/tv/3modules/ejabberd/default.nix
index 935df9a9..edc5296b 100644
--- a/tv/3modules/ejabberd/default.nix
+++ b/tv/3modules/ejabberd/default.nix
@@ -12,12 +12,43 @@
     fi
   '';
 
+  settingsFormat = pkgs.formats.json {};
+
 in {
   options.tv.ejabberd = {
     enable = mkEnableOption "tv.ejabberd";
-    certfile = mkOption {
-      type = types.absolute-pathname;
-      default = toString <secrets> + "/ejabberd.pem";
+    certfiles = mkOption {
+      type = types.listOf types.absolute-pathname;
+      default = [
+        (toString <secrets> + "/ejabberd.pem")
+      ];
+    };
+    configFile = mkOption {
+      type = types.either types.package types.absolute-pathname;
+      default = settingsFormat.generate "ejabberd.yaml" cfg.settings;
+    };
+    ciphers = mkOption {
+      type = types.listOf types.str;
+      default = [
+        "ECDHE-ECDSA-AES256-GCM-SHA384"
+        "ECDHE-RSA-AES256-GCM-SHA384"
+        "ECDHE-ECDSA-CHACHA20-POLY1305"
+        "ECDHE-RSA-CHACHA20-POLY1305"
+        "ECDHE-ECDSA-AES128-GCM-SHA256"
+        "ECDHE-RSA-AES128-GCM-SHA256"
+        "ECDHE-ECDSA-AES256-SHA384"
+        "ECDHE-RSA-AES256-SHA384"
+        "ECDHE-ECDSA-AES128-SHA256"
+        "ECDHE-RSA-AES128-SHA256"
+      ];
+    };
+    credentials.certfiles = mkOption {
+      internal = true;
+      readOnly = true;
+      default =
+        imap
+          (i: const "/tmp/credentials/certfile${toJSON i}")
+          cfg.certfiles;
     };
     hosts = mkOption {
       type = with types; listOf str;
@@ -29,42 +60,66 @@ in {
         paths = [
           (pkgs.writeDashBin "ejabberdctl" ''
             exec ${pkgs.ejabberd}/bin/ejabberdctl \
-                --config ${toFile "ejabberd.yaml" (import ./config.nix {
-                  inherit pkgs;
-                  config = cfg;
-                })} \
-                --logs ${shell.escape cfg.user.home} \
-                --spool ${shell.escape cfg.user.home} \
+                --config /etc/ejabberd/ejabberd.yaml \
+                --ctl-config /etc/ejabberd/ejabberdctl.cfg \
+                --logs ${cfg.stateDir} \
+                --spool ${cfg.stateDir} \
                 "$@"
           '')
           pkgs.ejabberd
         ];
       };
     };
+    protocol_options = mkOption {
+      type = types.listOf types.str;
+      default = [
+        "no_sslv2"
+        "no_sslv3"
+        "no_tlsv1"
+        "no_tlsv1_10"
+      ];
+    };
     registration_watchers = mkOption {
       type = types.listOf types.str;
       default = [
         config.krebs.users.tv.mail
       ];
     };
-    user = mkOption {
-      type = types.user;
-      default = {
-        name = "ejabberd";
-        home = "/var/lib/ejabberd";
-      };
+    settings = mkOption {
+      type = settingsFormat.type;
+      default = {};
+    };
+    stateDir = mkOption {
+      type =
+        types.addCheck
+          types.absolute-pathname
+          (path:
+            hasPrefix "/var/lib/" path &&
+            types.filename.check (removePrefix "/var/lib/" path)
+          );
+      default = "/var/lib/ejabberd";
     };
   };
   config = lib.mkIf cfg.enable {
+
+    environment.etc."ejabberd/ejabberd.yaml".source = cfg.configFile;
+    environment.etc."ejabberd/ejabberdctl.cfg".source =
+      builtins.toFile "ejabberdctl.cfg" /* sh */ ''
+        ERL_OPTIONS='-setcookie ${cfg.stateDir}/.erlang.cookie'
+      '';
+
     environment.systemPackages = [
       (pkgs.symlinkJoin {
         name = "ejabberd-sudo-wrapper";
         paths = [
           (pkgs.writeDashBin "ejabberdctl" ''
-            set -efu
-            cd ${shell.escape cfg.user.home}
-            exec /run/wrappers/bin/sudo \
-                -u ${shell.escape cfg.user.name} \
+            exec ${pkgs.systemd}/bin/systemd-run \
+                --unit=ejabberdctl \
+                --property=StateDirectory=ejabberd \
+                --property=User=ejabberd \
+                --collect \
+                --pipe \
+                --quiet \
                 ${cfg.pkgs.ejabberd}/bin/ejabberdctl "$@"
           '')
           cfg.pkgs.ejabberd
@@ -77,31 +132,144 @@ in {
     systemd.services.ejabberd = {
       wantedBy = [ "multi-user.target" ];
       after = [ "network.target" ];
+      reloadTriggers = [
+        config.environment.etc."ejabberd/ejabberd.yaml".source
+        config.environment.etc."ejabberd/ejabberdctl.cfg".source
+      ];
       serviceConfig = {
-        ExecStart = pkgs.writeDash "ejabberd" ''
-          ${pkgs.coreutils}/bin/ln -s "$CREDENTIALS_DIRECTORY" /tmp/credentials
-          ${gen-dhparam} /var/lib/ejabberd/dhfile
-          exec ${cfg.pkgs.ejabberd}/bin/ejabberdctl foreground
-        '';
-        LoadCredential = [
-          "certfile:${cfg.certfile}"
+        ExecStartPre = [
+          "${pkgs.coreutils}/bin/ln -s \${CREDENTIALS_DIRECTORY} /tmp/credentials"
+          "${gen-dhparam} ${cfg.stateDir}/dhfile"
+        ];
+        ExecStart = "${cfg.pkgs.ejabberd}/bin/ejabberdctl foreground";
+        ExecStop = [
+          "${cfg.pkgs.ejabberd}/bin/ejabberdctl stop"
+          "${cfg.pkgs.ejabberd}/bin/ejabberdctl stopped"
         ];
-        PermissionsStartOnly = true;
+        ExecReload = "${cfg.pkgs.ejabberd}/bin/ejabberdctl reload_config";
+        LoadCredential =
+          zipListsWith
+            (dst: src: "${baseNameOf dst}:${src}")
+            cfg.credentials.certfiles
+            cfg.certfiles;
+        LimitNOFILE = 65536;
+        PrivateDevices = true;
         PrivateTmp = true;
         SyslogIdentifier = "ejabberd";
         StateDirectory = "ejabberd";
-        User = cfg.user.name;
-        TimeoutStartSec = 60;
+        User = "ejabberd";
+        DynamicUser = true;
+        TimeoutSec = 60;
+        RestartSec = 5;
+        Restart = "on-failure";
+        Type = "notify";
+        NotifyAccess = "all";
+        WatchdogSec = 30;
       };
     };
 
-    users.users.${cfg.user.name} = {
-      inherit (cfg.user) home name uid;
-      createHome = true;
-      group = cfg.user.name;
-      isSystemUser = true;
-    };
+    # preset config values
+    tv.ejabberd.settings = {
+      access_rules = {
+        announce = mkDefault [{ allow = "admin"; }];
+        local = mkDefault [{ allow = "local"; }];
+        configure = mkDefault [{ allow = "admin"; }];
+        register = mkDefault ["allow"];
+        s2s = mkDefault ["allow"];
+        trusted_network = mkDefault [{ allow = "loopback"; }];
+      };
+
+      acl = {
+        local.user_regexp = mkDefault "";
+        loopback.ip = mkDefault [
+          "127.0.0.0/8"
+          "::1/128"
+          "::FFFF:127.0.0.1/128"
+        ];
+      };
+
+      certfiles = mkDefault cfg.credentials.certfiles;
+
+      hosts = mkDefault cfg.hosts;
+
+      language = mkDefault "en";
+
+      listen = mkDefault [
+        {
+          port = 5222;
+          ip = "::";
+          module = "ejabberd_c2s";
+          shaper = "c2s_shaper";
+          ciphers = concatStringsSep ":" cfg.ciphers;
+          protocol_options = cfg.protocol_options;
+          starttls = true;
+          starttls_required = true;
+          tls = false;
+          tls_compression = false;
+          max_stanza_size = 65536;
+        }
+        {
+          port = 5269;
+          ip = "::";
+          module = "ejabberd_s2s_in";
+          shaper = "s2s_shaper";
+          dhfile = "${cfg.stateDir}/dhfile";
+          max_stanza_size = 131072;
+        }
+      ];
+
+      loglevel = mkDefault "4";
+
+      modules = {
+        mod_adhoc = mkDefault {};
+        mod_admin_extra = mkDefault {};
+        mod_announce.access = mkDefault "announce";
+        mod_caps = mkDefault {};
+        mod_carboncopy = mkDefault {};
+        mod_client_state = mkDefault {};
+        mod_configure = mkDefault {};
+        mod_disco = mkDefault {};
+        mod_echo = mkDefault {};
+        mod_bosh = mkDefault {};
+        mod_last = mkDefault {};
+        mod_offline.access_max_user_messages = mkDefault "max_user_offline_messages";
+        mod_ping = mkDefault {};
+        mod_privacy = mkDefault {};
+        mod_private = mkDefault {};
+        mod_register = {
+          access_from = mkDefault "deny";
+          access = mkDefault "register";
+          ip_access = mkDefault "trusted_network";
+          registration_watchers = mkDefault cfg.registration_watchers;
+        };
+        mod_roster = mkDefault {};
+        mod_shared_roster = mkDefault {};
+        mod_stats = mkDefault {};
+        mod_time = mkDefault {};
+        mod_vcard.search = mkDefault false;
+        mod_version = mkDefault {};
+        mod_http_api = mkDefault {};
+      };
+
+      s2s_access = mkDefault "s2s";
+      s2s_ciphers = concatStringsSep ":" cfg.ciphers;
+      s2s_dhfile = mkDefault "${cfg.stateDir}/dhfile";
+      s2s_protocol_options = mkDefault cfg.protocol_options;
+      s2s_tls_compression = mkDefault false;
+      s2s_use_starttls = mkDefault "required";
 
-    users.groups.${cfg.user.name} = {};
+      shaper_rules = {
+        max_user_offline_messages = mkDefault [
+          { "5000" = "admin"; }
+          100
+        ];
+        max_user_sessions = mkDefault 10;
+        c2s_shaper = mkDefault [
+          { "none" = "admin"; }
+          "normal"
+        ];
+        s2s_shaper = mkDefault "fast";
+      };
+    };
   };
 }