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|
{ config, lib, pkgs, ... }:
with lib;
let
inherit (pkgs) nntp-proxy;
cfg = config.services.nntp-proxy;
configBool = b: if b then "TRUE" else "FALSE";
confFile = pkgs.writeText "nntp-proxy.conf" ''
nntp_server:
{
# NNTP Server host and port address
server = "${cfg.upstreamServer}";
port = ${toString cfg.upstreamPort};
# NNTP username
username = "${cfg.upstreamUser}";
# NNTP password in clear text
password = "${cfg.upstreamPassword}";
# Maximum number of connections allowed by the NNTP
max_connections = ${toString cfg.upstreamMaxConnections};
};
proxy:
{
# Local address and port to bind to
bind_ip = "${cfg.listenAddress}";
bind_port = ${toString cfg.port};
# SSL key and cert file
ssl_key = "${cfg.sslKey}";
ssl_cert = "${cfg.sslCert}";
# prohibit users from posting
prohibit_posting = ${configBool cfg.prohibitPosting};
# Verbose levels: ERROR, WARNING, NOTICE, INFO, DEBUG
verbose = "${toUpper cfg.verbosity}";
# Password is made with: 'mkpasswd -m sha-512 <password>'
users = (${concatStringsSep ",\n" (mapAttrsToList (username: userConfig:
''
{
username = "${username}";
password = "${userConfig.passwordHash}";
max_connections = ${toString userConfig.maxConnections};
}
'') cfg.users)});
};
'';
in
{
###### interface
options = {
services.nntp-proxy = {
enable = mkEnableOption "NNTP-Proxy";
upstreamServer = mkOption {
type = types.str;
default = "";
example = "ssl-eu.astraweb.com";
description = ''
Upstream server address
'';
};
upstreamPort = mkOption {
type = types.int;
default = 563;
description = ''
Upstream server port
'';
};
upstreamMaxConnections = mkOption {
type = types.int;
default = 20;
description = ''
Upstream server maximum allowed concurrent connections
'';
};
upstreamUser = mkOption {
type = types.str;
default = "";
description = ''
Upstream server username
'';
};
upstreamPassword = mkOption {
type = types.str;
default = "";
description = ''
Upstream server password
'';
};
listenAddress = mkOption {
type = types.str;
default = "127.0.0.1";
example = "[::]";
description = ''
Proxy listen address (IPv6 literal addresses need to be enclosed in "[" and "]" characters)
'';
};
port = mkOption {
type = types.int;
default = 5555;
description = ''
Proxy listen port
'';
};
sslKey = mkOption {
type = types.str;
default = "key.pem";
example = "/path/to/your/key.file";
description = ''
Proxy ssl key path
'';
};
sslCert = mkOption {
type = types.str;
default = "cert.pem";
example = "/path/to/your/cert.file";
description = ''
Proxy ssl certificate path
'';
};
prohibitPosting = mkOption {
type = types.bool;
default = true;
description = ''
Whether to prohibit posting to the upstream server
'';
};
verbosity = mkOption {
type = types.enum [ "error" "warning" "notice" "info" "debug" ];
default = "info";
example = "error";
description = ''
Verbosity level
'';
};
users = mkOption {
type = types.attrsOf (types.submodule {
options = {
username = mkOption {
type = types.str;
description = ''
Username
'';
};
passwordHash = mkOption {
type = types.str;
example = "$6$GtzE7FrpE$wwuVgFYU.TZH4Rz.Snjxk9XGua89IeVwPQ/fEUD8eujr40q5Y021yhn0aNcsQ2Ifw.BLclyzvzgegopgKcneL0";
description = ''
SHA-512 password hash (can be generated by
<code>mkpasswd -m sha-512 <password></code>)
'';
};
maxConnections = mkOption {
type = types.int;
default = 1;
description = ''
Maximum number of concurrent connections to the proxy for this user
'';
};
};
});
description = ''
NNTP-Proxy user configuration
'';
default = {};
example = literalExpression ''
{
"user1" = {
passwordHash = "$6$1l0t5Kn2Dk$appzivc./9l/kjq57eg5UCsBKlcfyCr0zNWYNerKoPsI1d7eAwiT0SVsOVx/CTgaBNT/u4fi2vN.iGlPfv1ek0";
maxConnections = 5;
};
"anotheruser" = {
passwordHash = "$6$6lwEsWB.TmsS$W7m1riUx4QrA8pKJz8hvff0dnF1NwtZXgdjmGqA1Dx2MDPj07tI9GNcb0SWlMglE.2/hBgynDdAd/XqqtRqVQ0";
maxConnections = 7;
};
}
'';
};
};
};
###### implementation
config = mkIf cfg.enable {
users.users.nntp-proxy = {
isSystemUser = true;
group = "nntp-proxy";
description = "NNTP-Proxy daemon user";
};
users.groups.nntp-proxy = {};
systemd.services.nntp-proxy = {
description = "NNTP proxy";
after = [ "network.target" "nss-lookup.target" ];
wantedBy = [ "multi-user.target" ];
serviceConfig = { User="nntp-proxy"; };
serviceConfig.ExecStart = "${nntp-proxy}/bin/nntp-proxy ${confFile}";
preStart = ''
if [ ! \( -f ${cfg.sslCert} -a -f ${cfg.sslKey} \) ]; then
${pkgs.openssl.bin}/bin/openssl req -subj '/CN=AutoGeneratedCert/O=NixOS Service/C=US' \
-new -newkey rsa:2048 -days 365 -nodes -x509 -keyout ${cfg.sslKey} -out ${cfg.sslCert};
fi
'';
};
};
}
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