148 lines
4 KiB
Nix
148 lines
4 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.services.agate;
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in
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{
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options = {
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services.agate = {
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enable = mkEnableOption (lib.mdDoc "Agate Server");
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package = mkOption {
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type = types.package;
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default = pkgs.agate;
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defaultText = literalExpression "pkgs.agate";
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description = lib.mdDoc "The package to use";
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};
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addresses = mkOption {
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type = types.listOf types.str;
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default = [ "0.0.0.0:1965" ];
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description = lib.mdDoc ''
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Addresses to listen on, IP:PORT, if you haven't disabled forwarding
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only set IPv4.
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'';
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};
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contentDir = mkOption {
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default = "/var/lib/agate/content";
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type = types.path;
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description = lib.mdDoc "Root of the content directory.";
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};
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certificatesDir = mkOption {
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default = "/var/lib/agate/certificates";
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type = types.path;
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description = lib.mdDoc "Root of the certificate directory.";
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};
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hostnames = mkOption {
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default = [ ];
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type = types.listOf types.str;
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description = lib.mdDoc ''
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Domain name of this Gemini server, enables checking hostname and port
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in requests. (multiple occurrences means basic vhosts)
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'';
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};
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language = mkOption {
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default = null;
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type = types.nullOr types.str;
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description = lib.mdDoc "RFC 4646 Language code for text/gemini documents.";
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};
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onlyTls_1_3 = mkOption {
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default = false;
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type = types.bool;
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description = lib.mdDoc "Only use TLSv1.3 (default also allows TLSv1.2).";
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};
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extraArgs = mkOption {
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type = types.listOf types.str;
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default = [ "" ];
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example = [ "--log-ip" ];
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description = lib.mdDoc "Extra arguments to use running agate.";
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};
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};
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};
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config = mkIf cfg.enable {
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# available for generating certs by hand
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# it can be a bit arduous with openssl
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environment.systemPackages = [ cfg.package ];
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systemd.services.agate = {
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description = "Agate";
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wantedBy = [ "multi-user.target" ];
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after = [ "network.target" "network-online.target" ];
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script =
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let
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prefixKeyList = key: list: concatMap (v: [ key v ]) list;
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addresses = prefixKeyList "--addr" cfg.addresses;
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hostnames = prefixKeyList "--hostname" cfg.hostnames;
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in
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''
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exec ${cfg.package}/bin/agate ${
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escapeShellArgs (
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[
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"--content" "${cfg.contentDir}"
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"--certs" "${cfg.certificatesDir}"
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] ++
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addresses ++
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(optionals (cfg.hostnames != []) hostnames) ++
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(optionals (cfg.language != null) [ "--lang" cfg.language ]) ++
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(optionals cfg.onlyTls_1_3 [ "--only-tls13" ]) ++
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(optionals (cfg.extraArgs != []) cfg.extraArgs)
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)
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}
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'';
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serviceConfig = {
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Restart = "always";
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RestartSec = "5s";
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DynamicUser = true;
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StateDirectory = "agate";
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# Security options:
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AmbientCapabilities = "";
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CapabilityBoundingSet = "";
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# ProtectClock= adds DeviceAllow=char-rtc r
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DeviceAllow = "";
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LockPersonality = true;
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PrivateTmp = true;
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PrivateDevices = true;
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PrivateUsers = true;
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ProtectClock = true;
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ProtectControlGroups = true;
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ProtectHostname = true;
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ProtectKernelLogs = true;
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ProtectKernelModules = true;
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ProtectKernelTunables = true;
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RestrictNamespaces = true;
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RestrictAddressFamilies = [ "AF_INET" "AF_INET6" ];
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RestrictRealtime = true;
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SystemCallArchitectures = "native";
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SystemCallErrorNumber = "EPERM";
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SystemCallFilter = [
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"@system-service"
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"~@cpu-emulation"
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"~@debug"
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"~@keyring"
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"~@memlock"
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"~@obsolete"
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"~@privileged"
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"~@setuid"
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];
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};
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};
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};
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}
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