wip lldap declarative

flake.nix

@@ -24,6 +24,10 @@
           url = "https://github.com/NixOS/nixpkgs/pull/317107.patch";
           hash = "sha256-6SfqnPLPxJHckXNU03HA0X03u9Ynn3baQ2HHMq5FkIc=";
         })
+        (originPkgs.fetchpatch {
+          url = "https://patch-diff.githubusercontent.com/raw/NixOS/nixpkgs/pull/304721.patch";
+          sha256 = "sha256-AOTtqbsDkykJKeE/e0Y2IscSHZ56vLEbl7lzxd+QfKo=";
+        })
       ];
       patchedNixpkgs = originPkgs.applyPatches {
         name = "nixpkgs-patched";

modules/blocks/ldap.nix

@@ -6,6 +6,24 @@ let
   contracts = pkgs.callPackage ../contracts {};
 
   fqdn = "${cfg.subdomain}.${cfg.domain}";
+
+  lldap-cli-auth = pkgs.callPackage ({ stdenvNoCC, makeWrapper, lldap-cli }: stdenvNoCC.mkDerivation {
+    name = "lldap-cli";
+
+    src = lldap-cli;
+
+    nativeBuildInputs = [
+      makeWrapper
+    ];
+
+    # No quotes around the value for LLDAP_PASSWORD because we want the value to not be enclosed in quotes.
+    installPhase = ''
+      makeWrapper ${pkgs.lldap-cli}/bin/lldap-cli $out/bin/lldap-cli \
+        --set LLDAP_USERNAME "admin" \
+        --set LLDAP_PASSWORD $(cat ${cfg.ldapUserPasswordFile}) \
+        --set LLDAP_HTTPURL "http://${config.services.lldap.settings.http_host}:${toString config.services.lldap.settings.http_port}"
+    '';
+  }) {};
 in
 {
   options.shb.ldap = {
@@ -69,8 +87,59 @@ in
       type = lib.types.bool;
       default = false;
     };
-  };
 
+    groups = lib.mkOption {
+      description = "LDAP Groups to manage declaratively.";
+      default = {};
+      example = lib.literalExpression ''
+      {
+        family = {};
+      }
+      '';
+      type = lib.types.attrsOf (lib.types.submodule {
+        options = {};
+      });
+    };
+
+    users = lib.mkOption {
+      description = "LDAP Users to manage declaratively.";
+      default = {};
+      type = lib.types.attrsOf (lib.types.submodule {
+        options = {
+          email = lib.mkOption {
+            description = "Email address.";
+            type = lib.types.str;
+          };
+
+          displayName = lib.mkOption {
+            description = "Display name.";
+            type = lib.types.str;
+          };
+
+          firstName = lib.mkOption {
+            description = "First name.";
+            type = lib.types.str;
+          };
+
+          lastName = lib.mkOption {
+            description = "Last name.";
+            type = lib.types.str;
+          };
+
+          groups = lib.mkOption {
+            description = "Groups this user is member of. The group must exist.";
+            type = lib.types.listOf lib.types.str;
+            default = [];
+          };
+
+          passwordFile = lib.mkOption {
+            type = lib.types.path;
+            description = "File containing the user's password.";
+          };
+        };
+      });
+    };
+  };
   
   config = lib.mkIf cfg.enable {
     services.nginx = {
@@ -126,6 +195,105 @@ in
       };
     };
 
+    environment.systemPackages = [
+      lldap-cli-auth
+    ];
+
+    # $ lldap-cli schema attribute user list
+    #
+    # Name           Type       Is list  Is visible  Is editable
+    # ----           ----       -------  ----------  -----------
+    # avatar         JpegPhoto  false    true        true
+    # creation_date  DateTime   false    true        false
+    # display_name   String     false    true        true
+    # first_name     String     false    true        true
+    # last_name      String     false    true        true
+    # mail           String     false    true        true
+    # user_id        String     false    true        false
+    # uuid           String     false    true        false
+
+
+    # $ lldap-cli schema attribute group list
+    #
+    # Name           Type      Is list  Is visible  Is editable
+    # ----           ----      -------  ----------  -----------
+    # creation_date  DateTime  false    true        false
+    # display_name   String    false    true        true
+    # group_id       Integer   false    true        false
+    # uuid           String    false    true        false
+
+    systemd.services.lldap.postStart =
+      let
+        configFile = (pkgs.formats.toml {}).generate "lldap_config.toml" config.services.lldap.settings;
+
+        login = [''
+          set -euo pipefail
+
+          sleep 3
+
+          export LLDAP_USERNAME=admin
+          export LLDAP_PASSWORD=$(cat ${cfg.ldapUserPasswordFile})
+          export LLDAP_HTTPURL=http://${config.services.lldap.settings.http_host}:${toString config.services.lldap.settings.http_port}
+
+          eval $(${pkgs.lldap-cli}/bin/lldap-cli login)
+
+          set -x
+        ''];
+
+        deleteGroups = [''
+          allUids=(${lib.concatStringsSep " " (
+            (lib.mapAttrsToList (uid: g: uid) cfg.groups)
+              ++ [ "lldap_admin" "lldap_password_manager" "lldap_strict_readonly" ])
+          })
+          echo All managed groups are: $allUids
+          echo Other groups will be deleted
+          for uid in $(${pkgs.lldap-cli}/bin/lldap-cli group list); do
+            if [[ ! " ''${allUids[*]} " =~ [[:space:]]''${uid}[[:space:]] ]]; then
+              ${pkgs.lldap-cli}/bin/lldap-cli group del $uid
+            fi
+          done
+        ''];
+
+        createGroups = lib.mapAttrsToList (uid: g: ''
+          ${pkgs.lldap-cli}/bin/lldap-cli group add ${uid}
+        '') cfg.groups;
+
+        deleteUsers = [''
+          allUids=(${lib.concatStringsSep " " (
+            (lib.mapAttrsToList (uid: u: uid) cfg.users)
+            ++ [ "admin" ])
+          })
+          for uid in $(${pkgs.lldap-cli}/bin/lldap-cli user list uid); do
+            if [[ ! " ''${allUids[*]} " =~ [[:space:]]''${uid}[[:space:]] ]]; then
+              ${pkgs.lldap-cli}/bin/lldap-cli user del $uid
+            fi
+          done
+        ''];
+
+        createUsers = lib.mapAttrsToList (uid: u: ''
+          ${pkgs.lldap-cli}/bin/lldap-cli user add ${uid} "${u.email}"
+          ${pkgs.lldap-cli}/bin/lldap-cli user update set ${uid} password "$(cat ${u.passwordFile})"
+          ${pkgs.lldap-cli}/bin/lldap-cli user update set ${uid} mail "${u.email}"
+          ${pkgs.lldap-cli}/bin/lldap-cli user update set ${uid} display_name "${u.displayName}"
+          # ${pkgs.lldap-cli}/bin/lldap-cli user update set ${uid} first_name "${u.firstName}"
+          # ${pkgs.lldap-cli}/bin/lldap-cli user update set ${uid} last_name "${u.lastName}"
+        '') cfg.users;
+
+        addToGroups = lib.mapAttrsToList (uid: u: lib.concatMapStringsSep "\n" (g: ''
+          ${pkgs.lldap-cli}/bin/lldap-cli user group add \
+            ${uid} \
+            ${g}
+        '') u.groups) cfg.users;
+      in
+        lib.concatStringsSep "\n\n" (
+          login
+          ++ deleteGroups
+          ++ createGroups
+          ++ deleteUsers
+          ++ createUsers
+          ++ addToGroups
+        );
+
     shb.backup.instances.lldap = {
       sourceDirectories = [
         "/var/lib/lldap"

test/vm/ldap.nix

@@ -27,6 +27,20 @@ in
         ldapUserPasswordFile = pkgs.writeText "user_password" "securepw";
         jwtSecretFile = pkgs.writeText "jwt_secret" "securejwtsecret";
         debug = true;
+
+        # groups = {
+        #   "test-group" = {};
+        # };
+        # users = {
+        #   "42" = {
+        #     email = "my@test.com";
+        #     displayName = "My Test";
+        #     firstName = "My";
+        #     lastName = "My";
+        #     groups = [ "test-group" ];
+        #     passwordFile = pkgs.writeText "userpw" "userpw78";
+        #   };
+        # };
       };
       networking.firewall.allowedTCPPorts = [ 80 ]; # nginx port
     };
@@ -78,6 +92,34 @@ in
 
         assert data['user']['displayName'] == "Administrator"
         assert data['user']['groups'][0]['displayName'] == "lldap_admin"
+
+    # with subtest("check user exists"):
+    #     ids = server.succeed("lldap-cli user list uid").splitlines()
+    #     print(ids)
+    #     if "42" not in ids:
+    #         raise Exception("Did not find user for email my@test.com")
+
+    #     groups = server.succeed("lldap-cli user group list 42").splitlines()
+    #     print(groups)
+    #     if "test-group" not in groups:
+    #         raise Exception("Did not find group for email my@test.com")
+
+    # with subtest("service updates attributes"):
+    #     server.succeed("lldap-cli user update set 42 mail other@test.com")
+
+    #     emails = server.succeed("lldap-cli user list email").splitlines()
+    #     print("after update", emails)
+    #     if "my@test.com" in emails:
+    #         raise Exception("Did not find user for email other@test.com")
+
+    #     server.succeed("systemctl restart lldap")
+
+    #     emails = server.succeed("lldap-cli user list email").splitlines()
+    #     print("after restart", emails)
+    #     if "my@test.com" not in emails:
+    #         raise Exception("Did not find user for email my@test.com")
+
+    # print(server.succeed("systemctl cat lldap | grep Post"))
     '';
   };
 }