diff options
Diffstat (limited to 'nixpkgs/nixos/modules/security/krb5/krb5-conf-format.nix')
-rw-r--r-- | nixpkgs/nixos/modules/security/krb5/krb5-conf-format.nix | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/nixpkgs/nixos/modules/security/krb5/krb5-conf-format.nix b/nixpkgs/nixos/modules/security/krb5/krb5-conf-format.nix new file mode 100644 index 000000000000..d01e47a40be0 --- /dev/null +++ b/nixpkgs/nixos/modules/security/krb5/krb5-conf-format.nix @@ -0,0 +1,88 @@ +{ pkgs, lib, ... }: + +# Based on +# - https://web.mit.edu/kerberos/krb5-1.12/doc/admin/conf_files/krb5_conf.html +# - https://manpages.debian.org/unstable/heimdal-docs/krb5.conf.5heimdal.en.html + +let + inherit (lib) boolToString concatMapStringsSep concatStringsSep filter + isAttrs isBool isList mapAttrsToList mdDoc mkOption singleton splitString; + inherit (lib.types) attrsOf bool coercedTo either int listOf oneOf path + str submodule; +in +{ }: { + type = let + section = attrsOf relation; + relation = either (attrsOf value) value; + value = either (listOf atom) atom; + atom = oneOf [int str bool]; + in submodule { + freeformType = attrsOf section; + options = { + include = mkOption { + default = [ ]; + description = mdDoc '' + Files to include in the Kerberos configuration. + ''; + type = coercedTo path singleton (listOf path); + }; + includedir = mkOption { + default = [ ]; + description = mdDoc '' + Directories containing files to include in the Kerberos configuration. + ''; + type = coercedTo path singleton (listOf path); + }; + module = mkOption { + default = [ ]; + description = mdDoc '' + Modules to obtain Kerberos configuration from. + ''; + type = coercedTo path singleton (listOf path); + }; + }; + }; + + generate = let + indent = str: concatMapStringsSep "\n" (line: " " + line) (splitString "\n" str); + + formatToplevel = args @ { + include ? [ ], + includedir ? [ ], + module ? [ ], + ... + }: let + sections = removeAttrs args [ "include" "includedir" "module" ]; + in concatStringsSep "\n" (filter (x: x != "") [ + (concatStringsSep "\n" (mapAttrsToList formatSection sections)) + (concatMapStringsSep "\n" (m: "module ${m}") module) + (concatMapStringsSep "\n" (i: "include ${i}") include) + (concatMapStringsSep "\n" (i: "includedir ${i}") includedir) + ]); + + formatSection = name: section: '' + [${name}] + ${indent (concatStringsSep "\n" (mapAttrsToList formatRelation section))} + ''; + + formatRelation = name: relation: + if isAttrs relation + then '' + ${name} = { + ${indent (concatStringsSep "\n" (mapAttrsToList formatValue relation))} + }'' + else formatValue name relation; + + formatValue = name: value: + if isList value + then concatMapStringsSep "\n" (formatAtom name) value + else formatAtom name value; + + formatAtom = name: atom: let + v = if isBool atom then boolToString atom else toString atom; + in "${name} = ${v}"; + in + name: value: pkgs.writeText name '' + ${formatToplevel value} + ''; +} |