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|
{ config, lib, pkgs, ... }:
with lib;
let
concatMapLines = f: l: lib.concatStringsSep "\n" (map f l);
cfg = config.services.mlmmj;
stateDir = "/var/lib/mlmmj";
spoolDir = "/var/spool/mlmmj";
listDir = domain: list: "${spoolDir}/${domain}/${list}";
listCtl = domain: list: "${listDir domain list}/control";
transport = domain: list: "${domain}--${list}@local.list.mlmmj mlmmj:${domain}/${list}";
virtual = domain: list: "${list}@${domain} ${domain}--${list}@local.list.mlmmj";
alias = domain: list: "${list}: \"|${pkgs.mlmmj}/bin/mlmmj-receive -L ${listDir domain list}/\"";
subjectPrefix = list: "[${list}]";
listAddress = domain: list: "${list}@${domain}";
customHeaders = domain: list: [
"List-Id: ${list}"
"Reply-To: ${list}@${domain}"
"List-Post: <mailto:${list}@${domain}>"
"List-Help: <mailto:${list}+help@${domain}>"
"List-Subscribe: <mailto:${list}+subscribe@${domain}>"
"List-Unsubscribe: <mailto:${list}+unsubscribe@${domain}>"
];
footer = domain: list: "To unsubscribe send a mail to ${list}+unsubscribe@${domain}";
createList = d: l:
let ctlDir = listCtl d l; in
''
for DIR in incoming queue queue/discarded archive text subconf unsubconf \
bounce control moderation subscribers.d digesters.d requeue \
nomailsubs.d
do
mkdir -p '${listDir d l}'/"$DIR"
done
${pkgs.coreutils}/bin/mkdir -p ${ctlDir}
echo ${listAddress d l} > '${ctlDir}/listaddress'
[ ! -e ${ctlDir}/customheaders ] && \
echo "${lib.concatStringsSep "\n" (customHeaders d l)}" > '${ctlDir}/customheaders'
[ ! -e ${ctlDir}/footer ] && \
echo ${footer d l} > '${ctlDir}/footer'
[ ! -e ${ctlDir}/prefix ] && \
echo ${subjectPrefix l} > '${ctlDir}/prefix'
'';
in
{
###### interface
options = {
services.mlmmj = {
enable = mkOption {
type = types.bool;
default = false;
description = "Enable mlmmj";
};
user = mkOption {
type = types.str;
default = "mlmmj";
description = "mailinglist local user";
};
group = mkOption {
type = types.str;
default = "mlmmj";
description = "mailinglist local group";
};
listDomain = mkOption {
type = types.str;
default = "localhost";
description = "Set the mailing list domain";
};
mailLists = mkOption {
type = types.listOf types.str;
default = [];
description = "The collection of hosted maillists";
};
maintInterval = mkOption {
type = types.str;
default = "20min";
description = ''
Time interval between mlmmj-maintd runs, see
<citerefentry><refentrytitle>systemd.time</refentrytitle>
<manvolnum>7</manvolnum></citerefentry> for format information.
'';
};
};
};
###### implementation
config = mkIf cfg.enable {
users.users.${cfg.user} = {
description = "mlmmj user";
home = stateDir;
createHome = true;
uid = config.ids.uids.mlmmj;
group = cfg.group;
useDefaultShell = true;
};
users.groups.${cfg.group} = {
gid = config.ids.gids.mlmmj;
};
services.postfix = {
enable = true;
recipientDelimiter= "+";
masterConfig.mlmmj = {
type = "unix";
private = true;
privileged = true;
chroot = false;
wakeup = 0;
command = "pipe";
args = [
"flags=ORhu"
"user=mlmmj"
"argv=${pkgs.mlmmj}/bin/mlmmj-receive"
"-F"
"-L"
"${spoolDir}/$nexthop"
];
};
extraAliases = concatMapLines (alias cfg.listDomain) cfg.mailLists;
extraConfig = "propagate_unmatched_extensions = virtual";
virtual = concatMapLines (virtual cfg.listDomain) cfg.mailLists;
transport = concatMapLines (transport cfg.listDomain) cfg.mailLists;
};
environment.systemPackages = [ pkgs.mlmmj ];
system.activationScripts.mlmmj = ''
${pkgs.coreutils}/bin/mkdir -p ${stateDir} ${spoolDir}/${cfg.listDomain}
${pkgs.coreutils}/bin/chown -R ${cfg.user}:${cfg.group} ${spoolDir}
${concatMapLines (createList cfg.listDomain) cfg.mailLists}
${pkgs.postfix}/bin/postmap /etc/postfix/virtual
${pkgs.postfix}/bin/postmap /etc/postfix/transport
'';
systemd.services.mlmmj-maintd = {
description = "mlmmj maintenance daemon";
serviceConfig = {
User = cfg.user;
Group = cfg.group;
ExecStart = "${pkgs.mlmmj}/bin/mlmmj-maintd -F -d ${spoolDir}/${cfg.listDomain}";
};
};
systemd.timers.mlmmj-maintd = {
description = "mlmmj maintenance timer";
timerConfig.OnUnitActiveSec = cfg.maintInterval;
wantedBy = [ "timers.target" ];
};
};
}
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