diff options
Diffstat (limited to 'nixpkgs/nixos/modules/services/mail/postsrsd.nix')
-rw-r--r-- | nixpkgs/nixos/modules/services/mail/postsrsd.nix | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/nixpkgs/nixos/modules/services/mail/postsrsd.nix b/nixpkgs/nixos/modules/services/mail/postsrsd.nix new file mode 100644 index 00000000000..8f12a16906c --- /dev/null +++ b/nixpkgs/nixos/modules/services/mail/postsrsd.nix @@ -0,0 +1,135 @@ +{ config, lib, pkgs, ... }: + +with lib; + +let + + cfg = config.services.postsrsd; + +in { + + ###### interface + + options = { + + services.postsrsd = { + + enable = mkOption { + type = types.bool; + default = false; + description = "Whether to enable the postsrsd SRS server for Postfix."; + }; + + secretsFile = mkOption { + type = types.path; + default = "/var/lib/postsrsd/postsrsd.secret"; + description = "Secret keys used for signing and verification"; + }; + + domain = mkOption { + type = types.str; + description = "Domain name for rewrite"; + }; + + separator = mkOption { + type = types.enum ["-" "=" "+"]; + default = "="; + description = "First separator character in generated addresses"; + }; + + # bindAddress = mkOption { # uncomment once 1.5 is released + # type = types.str; + # default = "127.0.0.1"; + # description = "Socket listen address"; + # }; + + forwardPort = mkOption { + type = types.int; + default = 10001; + description = "Port for the forward SRS lookup"; + }; + + reversePort = mkOption { + type = types.int; + default = 10002; + description = "Port for the reverse SRS lookup"; + }; + + timeout = mkOption { + type = types.int; + default = 1800; + description = "Timeout for idle client connections in seconds"; + }; + + excludeDomains = mkOption { + type = types.listOf types.str; + default = []; + description = "Origin domains to exclude from rewriting in addition to primary domain"; + }; + + user = mkOption { + type = types.str; + default = "postsrsd"; + description = "User for the daemon"; + }; + + group = mkOption { + type = types.str; + default = "postsrsd"; + description = "Group for the daemon"; + }; + + }; + + }; + + + ###### implementation + + config = mkIf cfg.enable { + + services.postsrsd.domain = mkDefault config.networking.hostName; + + users.users = optionalAttrs (cfg.user == "postsrsd") (singleton + { name = "postsrsd"; + group = cfg.group; + uid = config.ids.uids.postsrsd; + }); + + users.groups = optionalAttrs (cfg.group == "postsrsd") (singleton + { name = "postsrsd"; + gid = config.ids.gids.postsrsd; + }); + + systemd.services.postsrsd = { + description = "PostSRSd SRS rewriting server"; + after = [ "network.target" ]; + before = [ "postfix.service" ]; + wantedBy = [ "multi-user.target" ]; + + path = [ pkgs.coreutils ]; + + serviceConfig = { + ExecStart = ''${pkgs.postsrsd}/sbin/postsrsd "-s${cfg.secretsFile}" "-d${cfg.domain}" -a${cfg.separator} -f${toString cfg.forwardPort} -r${toString cfg.reversePort} -t${toString cfg.timeout} "-X${concatStringsSep "," cfg.excludeDomains}"''; + User = cfg.user; + Group = cfg.group; + PermissionsStartOnly = true; + }; + + preStart = '' + if [ ! -e "${cfg.secretsFile}" ]; then + echo "WARNING: secrets file not found, autogenerating!" + DIR="$(dirname "${cfg.secretsFile}")" + if [ ! -d "$DIR" ]; then + mkdir -p -m750 "$DIR" + chown "${cfg.user}:${cfg.group}" "$DIR" + fi + dd if=/dev/random bs=18 count=1 | base64 > "${cfg.secretsFile}" + chmod 600 "${cfg.secretsFile}" + fi + chown "${cfg.user}:${cfg.group}" "${cfg.secretsFile}" + ''; + }; + + }; +} |