150 lines
3.7 KiB
Nix
150 lines
3.7 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.services.dspam;
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dspam = pkgs.dspam;
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defaultSock = "/run/dspam/dspam.sock";
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cfgfile = pkgs.writeText "dspam.conf" ''
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Home /var/lib/dspam
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StorageDriver ${dspam}/lib/dspam/lib${cfg.storageDriver}_drv.so
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Trust root
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Trust ${cfg.user}
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SystemLog on
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UserLog on
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${optionalString (cfg.domainSocket != null) ''
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ServerDomainSocketPath "${cfg.domainSocket}"
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ClientHost "${cfg.domainSocket}"
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''}
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${cfg.extraConfig}
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'';
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in {
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###### interface
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options = {
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services.dspam = {
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enable = mkOption {
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type = types.bool;
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default = false;
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description = "Whether to enable the dspam spam filter.";
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};
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user = mkOption {
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type = types.str;
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default = "dspam";
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description = "User for the dspam daemon.";
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};
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group = mkOption {
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type = types.str;
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default = "dspam";
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description = "Group for the dspam daemon.";
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};
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storageDriver = mkOption {
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type = types.str;
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default = "hash";
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description = "Storage driver backend to use for dspam.";
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};
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domainSocket = mkOption {
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type = types.nullOr types.path;
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default = defaultSock;
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description = "Path to local domain socket which is used for communication with the daemon. Set to null to disable UNIX socket.";
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};
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extraConfig = mkOption {
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type = types.lines;
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default = "";
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description = "Additional dspam configuration.";
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};
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maintenanceInterval = mkOption {
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type = types.nullOr types.str;
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default = null;
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description = "If set, maintenance script will be run at specified (in systemd.timer format) interval";
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};
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};
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};
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###### implementation
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config = mkIf cfg.enable (mkMerge [
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{
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users.users = optionalAttrs (cfg.user == "dspam") {
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dspam = {
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group = cfg.group;
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uid = config.ids.uids.dspam;
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};
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};
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users.groups = optionalAttrs (cfg.group == "dspam") {
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dspam.gid = config.ids.gids.dspam;
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};
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environment.systemPackages = [ dspam ];
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environment.etc."dspam/dspam.conf".source = cfgfile;
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systemd.services.dspam = {
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description = "dspam spam filtering daemon";
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wantedBy = [ "multi-user.target" ];
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after = [ "postgresql.service" ];
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restartTriggers = [ cfgfile ];
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serviceConfig = {
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ExecStart = "${dspam}/bin/dspam --daemon --nofork";
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User = cfg.user;
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Group = cfg.group;
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RuntimeDirectory = optional (cfg.domainSocket == defaultSock) "dspam";
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RuntimeDirectoryMode = optional (cfg.domainSocket == defaultSock) "0750";
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StateDirectory = "dspam";
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StateDirectoryMode = "0750";
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LogsDirectory = "dspam";
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LogsDirectoryMode = "0750";
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# DSPAM segfaults on just about every error
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Restart = "on-abort";
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RestartSec = "1s";
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};
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};
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}
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(mkIf (cfg.maintenanceInterval != null) {
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systemd.timers.dspam-maintenance = {
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description = "Timer for dspam maintenance script";
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wantedBy = [ "timers.target" ];
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timerConfig = {
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OnCalendar = cfg.maintenanceInterval;
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Unit = "dspam-maintenance.service";
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};
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};
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systemd.services.dspam-maintenance = {
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description = "dspam maintenance script";
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restartTriggers = [ cfgfile ];
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serviceConfig = {
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ExecStart = "${dspam}/bin/dspam_maintenance --verbose";
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Type = "oneshot";
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User = cfg.user;
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Group = cfg.group;
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};
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};
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})
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]);
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}
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