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