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{ config, lib, pkgs, ... }:
# search also generates ddclient entries for all other logs
with import <stockholm/lib>;
let
ddclientUser = "ddclient";
sec = toString <secrets>;
nsupdate = import "${sec}/nsupdate-hub.nix";
stateDir = "/var/spool/ddclient";
cfg = "${stateDir}/cfg";
ext-if = config.makefu.server.primary-itf;
ddclientPIDFile = "${stateDir}/ddclient.pid";
# TODO: correct cert generation requires a `real` internet ip address
gen-cfg = dict: ''
ssl=yes
cache=${stateDir}/ddclient.cache
pid=${ddclientPIDFile}
${concatStringsSep "\n" (mapAttrsToList (user: pass: ''
protocol=dyndns2
use=web, web=http://ipv4.nsupdate.info/myip
ssl=yes
server=ipv4.nsupdate.info
login=${user}
password='${pass}'
${user}
'') dict)}
'';
uhubDir = "/var/lib/uhub";
in {
users.users."${ddclientUser}" = {
uid = genid "ddclient";
description = "ddclient daemon user";
home = stateDir;
isSystemUser = true;
createHome = true;
};
systemd.services = {
ddclient-nsupdate-uhub = {
wantedBy = [ "multi-user.target" ];
after = [ "ip-up.target" ];
serviceConfig = {
Type = "forking";
User = ddclientUser;
PIDFile = ddclientPIDFile;
ExecStartPre = pkgs.writeDash "init-nsupdate" ''
cp -vf ${pkgs.writeText "ddclient-config" (gen-cfg nsupdate)} ${cfg}
chmod 700 ${cfg}
'';
ExecStart = "${pkgs.ddclient}/bin/ddclient -verbose -daemon 1 -noquiet -file ${cfg}";
};
};
};
networking.firewall.extraCommands = ''
iptables -A PREROUTING -t nat -i ${ext-if} -p tcp --dport 411 -j REDIRECT --to-port 1511
'';
systemd.services.uhub.serviceConfig = {
PrivateTmp = true;
PermissionsStartOnly = true;
ExecStartPre = pkgs.writeDash "uhub-pre" ''
cp -f ${toString <secrets/wildcard.krebsco.de.crt>} ${uhubDir}/uhub.crt
cp -f ${toString <secrets/wildcard.krebsco.de.key>} ${uhubDir}/uhub.key
if test -d ${uhubDir};then
echo "Directory ${uhubDir} already exists, skipping db init"
else
echo "Copying sql user db"
cp ${toString <secrets/uhub.sql>} ${uhubDir}/uhub.sql
fi
chown -R uhub ${uhubDir}
'';
};
users.users.uhub = {
home = uhubDir;
createHome = true;
isSystemUser = true;
group = "uhub";
};
users.group.uhub = {};
services.uhub.home = {
enable = true;
port = 1511;
enableTLS = true;
hubConfig = ''
hub_name = "krebshub"
tls_certificate = ${uhubDir}/uhub.crt
tls_private_key = ${uhubDir}/uhub.key
registered_users_only = true
'';
plugins = {
welcome = {
enable = true;
motd = "shareit";
rules = "1. Don't be an asshole";
};
history = {
enable = true;
};
authSqlite = {
enable = true;
file = "${uhubDir}/uhub.sql";
};
};
};
networking.firewall.allowedTCPPorts = [ 411 1511 ];
}
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