diff options
Diffstat (limited to 'nixos/modules/services/security/sks.nix')
| -rw-r--r-- | nixos/modules/services/security/sks.nix | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/nixos/modules/services/security/sks.nix b/nixos/modules/services/security/sks.nix new file mode 100644 index 00000000000..f4911597564 --- /dev/null +++ b/nixos/modules/services/security/sks.nix @@ -0,0 +1,146 @@ +{ config, lib, pkgs, ... }: + +with lib; + +let + cfg = config.services.sks; + sksPkg = cfg.package; + dbConfig = pkgs.writeText "DB_CONFIG" '' + ${cfg.extraDbConfig} + ''; + +in { + meta.maintainers = with maintainers; [ primeos calbrecht jcumming ]; + + options = { + + services.sks = { + + enable = mkEnableOption '' + SKS (synchronizing key server for OpenPGP) and start the database + server. You need to create "''${dataDir}/dump/*.gpg" for the initial + import''; + + package = mkOption { + default = pkgs.sks; + defaultText = literalExpression "pkgs.sks"; + type = types.package; + description = "Which SKS derivation to use."; + }; + + dataDir = mkOption { + type = types.path; + default = "/var/db/sks"; + example = "/var/lib/sks"; + # TODO: The default might change to "/var/lib/sks" as this is more + # common. There's also https://github.com/NixOS/nixpkgs/issues/26256 + # and "/var/db" is not FHS compliant (seems to come from BSD). + description = '' + Data directory (-basedir) for SKS, where the database and all + configuration files are located (e.g. KDB, PTree, membership and + sksconf). + ''; + }; + + extraDbConfig = mkOption { + type = types.str; + default = ""; + description = '' + Set contents of the files "KDB/DB_CONFIG" and "PTree/DB_CONFIG" within + the ''${dataDir} directory. This is used to configure options for the + database for the sks key server. + + Documentation of available options are available in the file named + "sampleConfig/DB_CONFIG" in the following repository: + https://bitbucket.org/skskeyserver/sks-keyserver/src + ''; + }; + + hkpAddress = mkOption { + default = [ "127.0.0.1" "::1" ]; + type = types.listOf types.str; + description = '' + Domain names, IPv4 and/or IPv6 addresses to listen on for HKP + requests. + ''; + }; + + hkpPort = mkOption { + default = 11371; + type = types.ints.u16; + description = "HKP port to listen on."; + }; + + webroot = mkOption { + type = types.nullOr types.path; + default = "${sksPkg.webSamples}/OpenPKG"; + defaultText = literalExpression ''"''${package.webSamples}/OpenPKG"''; + description = '' + Source directory (will be symlinked, if not null) for the files the + built-in webserver should serve. SKS (''${pkgs.sks.webSamples}) + provides the following examples: "HTML5", "OpenPKG", and "XHTML+ES". + The index file can be named index.html, index.htm, index.xhtm, or + index.xhtml. Files with the extensions .css, .es, .js, .jpg, .jpeg, + .png, or .gif are supported. Subdirectories and filenames with + anything other than alphanumeric characters and the '.' character + will be ignored. + ''; + }; + }; + }; + + config = mkIf cfg.enable { + + users = { + users.sks = { + isSystemUser = true; + description = "SKS user"; + home = cfg.dataDir; + createHome = true; + group = "sks"; + useDefaultShell = true; + packages = [ sksPkg pkgs.db ]; + }; + groups.sks = { }; + }; + + systemd.services = let + hkpAddress = "'" + (builtins.concatStringsSep " " cfg.hkpAddress) + "'" ; + hkpPort = builtins.toString cfg.hkpPort; + in { + sks-db = { + description = "SKS database server"; + after = [ "network.target" ]; + wantedBy = [ "multi-user.target" ]; + preStart = '' + ${lib.optionalString (cfg.webroot != null) + "ln -sfT \"${cfg.webroot}\" web"} + mkdir -p dump + ${sksPkg}/bin/sks build dump/*.gpg -n 10 -cache 100 || true #*/ + ${sksPkg}/bin/sks cleandb || true + ${sksPkg}/bin/sks pbuild -cache 20 -ptree_cache 70 || true + # Check that both database configs are symlinks before overwriting them + # TODO: The initial build will be without DB_CONFIG, but this will + # hopefully not cause any significant problems. It might be better to + # create both directories manually but we have to check that this does + # not affect the initial build of the DB. + for CONFIG_FILE in KDB/DB_CONFIG PTree/DB_CONFIG; do + if [ -e $CONFIG_FILE ] && [ ! -L $CONFIG_FILE ]; then + echo "$CONFIG_FILE exists but is not a symlink." >&2 + echo "Please remove $PWD/$CONFIG_FILE manually to continue." >&2 + exit 1 + fi + ln -sf ${dbConfig} $CONFIG_FILE + done + ''; + serviceConfig = { + WorkingDirectory = "~"; + User = "sks"; + Group = "sks"; + Restart = "always"; + ExecStart = "${sksPkg}/bin/sks db -hkp_address ${hkpAddress} -hkp_port ${hkpPort}"; + }; + }; + }; + }; +} |