nixpkgs/nixos/modules/services/networking/prosody.nix
Milan Pässler 24d5e30b5f nixos/prosody: add ExecReload
Add an ExecReload command to the prosody service, to allow reloading
prosody by sending SIGHUP to the main process, for example to update
certificates without restarting the server. This is exactly how the
`prosodyctl` tool does it.

Note: Currently there is a bug which prevents mod_http from reloading the
certificates properly: https://issues.prosody.im/1216.
2019-01-26 03:12:09 +01:00

523 lines
13 KiB
Nix

{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.prosody;
sslOpts = { ... }: {
options = {
key = mkOption {
type = types.path;
description = "Path to the key file.";
};
# TODO: rename to certificate to match the prosody config
cert = mkOption {
type = types.path;
description = "Path to the certificate file.";
};
extraOptions = mkOption {
type = types.attrs;
default = {};
description = "Extra SSL configuration options.";
};
};
};
moduleOpts = {
# Generally required
roster = mkOption {
type = types.bool;
default = true;
description = "Allow users to have a roster";
};
saslauth = mkOption {
type = types.bool;
default = true;
description = "Authentication for clients and servers. Recommended if you want to log in.";
};
tls = mkOption {
type = types.bool;
default = true;
description = "Add support for secure TLS on c2s/s2s connections";
};
dialback = mkOption {
type = types.bool;
default = true;
description = "s2s dialback support";
};
disco = mkOption {
type = types.bool;
default = true;
description = "Service discovery";
};
# Not essential, but recommended
carbons = mkOption {
type = types.bool;
default = true;
description = "Keep multiple clients in sync";
};
pep = mkOption {
type = types.bool;
default = true;
description = "Enables users to publish their mood, activity, playing music and more";
};
private = mkOption {
type = types.bool;
default = true;
description = "Private XML storage (for room bookmarks, etc.)";
};
blocklist = mkOption {
type = types.bool;
default = true;
description = "Allow users to block communications with other users";
};
vcard = mkOption {
type = types.bool;
default = true;
description = "Allow users to set vCards";
};
# Nice to have
version = mkOption {
type = types.bool;
default = true;
description = "Replies to server version requests";
};
uptime = mkOption {
type = types.bool;
default = true;
description = "Report how long server has been running";
};
time = mkOption {
type = types.bool;
default = true;
description = "Let others know the time here on this server";
};
ping = mkOption {
type = types.bool;
default = true;
description = "Replies to XMPP pings with pongs";
};
register = mkOption {
type = types.bool;
default = true;
description = "Allow users to register on this server using a client and change passwords";
};
mam = mkOption {
type = types.bool;
default = false;
description = "Store messages in an archive and allow users to access it";
};
# Admin interfaces
admin_adhoc = mkOption {
type = types.bool;
default = true;
description = "Allows administration via an XMPP client that supports ad-hoc commands";
};
admin_telnet = mkOption {
type = types.bool;
default = false;
description = "Opens telnet console interface on localhost port 5582";
};
# HTTP modules
bosh = mkOption {
type = types.bool;
default = false;
description = "Enable BOSH clients, aka 'Jabber over HTTP'";
};
websocket = mkOption {
type = types.bool;
default = false;
description = "Enable WebSocket support";
};
http_files = mkOption {
type = types.bool;
default = false;
description = "Serve static files from a directory over HTTP";
};
# Other specific functionality
limits = mkOption {
type = types.bool;
default = false;
description = "Enable bandwidth limiting for XMPP connections";
};
groups = mkOption {
type = types.bool;
default = false;
description = "Shared roster support";
};
server_contact_info = mkOption {
type = types.bool;
default = false;
description = "Publish contact information for this service";
};
announce = mkOption {
type = types.bool;
default = false;
description = "Send announcement to all online users";
};
welcome = mkOption {
type = types.bool;
default = false;
description = "Welcome users who register accounts";
};
watchregistrations = mkOption {
type = types.bool;
default = false;
description = "Alert admins of registrations";
};
motd = mkOption {
type = types.bool;
default = false;
description = "Send a message to users when they log in";
};
legacyauth = mkOption {
type = types.bool;
default = false;
description = "Legacy authentication. Only used by some old clients and bots";
};
proxy65 = mkOption {
type = types.bool;
default = false;
description = "Enables a file transfer proxy service which clients behind NAT can use";
};
};
toLua = x:
if builtins.isString x then ''"${x}"''
else if builtins.isBool x then (if x == true then "true" else "false")
else if builtins.isInt x then toString x
else if builtins.isList x then ''{ ${lib.concatStringsSep ", " (map (n: toLua n) x) } }''
else throw "Invalid Lua value";
createSSLOptsStr = o: ''
ssl = {
cafile = "/etc/ssl/certs/ca-bundle.crt";
key = "${o.key}";
certificate = "${o.cert}";
${concatStringsSep "\n" (mapAttrsToList (name: value: "${name} = ${toLua value};") o.extraOptions)}
};
'';
vHostOpts = { ... }: {
options = {
# TODO: require attribute
domain = mkOption {
type = types.str;
description = "Domain name";
};
enabled = mkOption {
type = types.bool;
default = false;
description = "Whether to enable the virtual host";
};
ssl = mkOption {
type = types.nullOr (types.submodule sslOpts);
default = null;
description = "Paths to SSL files";
};
extraConfig = mkOption {
type = types.lines;
default = "";
description = "Additional virtual host specific configuration";
};
};
};
in
{
###### interface
options = {
services.prosody = {
enable = mkOption {
type = types.bool;
default = false;
description = "Whether to enable the prosody server";
};
package = mkOption {
type = types.package;
description = "Prosody package to use";
default = pkgs.prosody;
defaultText = "pkgs.prosody";
example = literalExample ''
pkgs.prosody.override {
withExtraLibs = [ pkgs.luaPackages.lpty ];
withCommunityModules = [ "auth_external" ];
};
'';
};
dataDir = mkOption {
type = types.string;
description = "Directory where Prosody stores its data";
default = "/var/lib/prosody";
};
user = mkOption {
type = types.str;
default = "prosody";
description = "User account under which prosody runs.";
};
group = mkOption {
type = types.str;
default = "prosody";
description = "Group account under which prosody runs.";
};
allowRegistration = mkOption {
type = types.bool;
default = false;
description = "Allow account creation";
};
c2sRequireEncryption = mkOption {
type = types.bool;
default = true;
description = ''
Force clients to use encrypted connections? This option will
prevent clients from authenticating unless they are using encryption.
'';
};
s2sRequireEncryption = mkOption {
type = types.bool;
default = true;
description = ''
Force servers to use encrypted connections? This option will
prevent servers from authenticating unless they are using encryption.
Note that this is different from authentication.
'';
};
s2sSecureAuth = mkOption {
type = types.bool;
default = false;
description = ''
Force certificate authentication for server-to-server connections?
This provides ideal security, but requires servers you communicate
with to support encryption AND present valid, trusted certificates.
For more information see https://prosody.im/doc/s2s#security
'';
};
s2sInsecureDomains = mkOption {
type = types.listOf types.str;
default = [];
example = [ "insecure.example.com" ];
description = ''
Some servers have invalid or self-signed certificates. You can list
remote domains here that will not be required to authenticate using
certificates. They will be authenticated using DNS instead, even
when s2s_secure_auth is enabled.
'';
};
s2sSecureDomains = mkOption {
type = types.listOf types.str;
default = [];
example = [ "jabber.org" ];
description = ''
Even if you leave s2s_secure_auth disabled, you can still require valid
certificates for some domains by specifying a list here.
'';
};
modules = moduleOpts;
extraModules = mkOption {
type = types.listOf types.str;
default = [];
description = "Enable custom modules";
};
extraPluginPaths = mkOption {
type = types.listOf types.path;
default = [];
description = "Addtional path in which to look find plugins/modules";
};
virtualHosts = mkOption {
description = "Define the virtual hosts";
type = with types; loaOf (submodule vHostOpts);
example = {
myhost = {
domain = "my-xmpp-example-host.org";
enabled = true;
};
};
default = {
localhost = {
domain = "localhost";
enabled = true;
};
};
};
ssl = mkOption {
type = types.nullOr (types.submodule sslOpts);
default = null;
description = "Paths to SSL files";
};
admins = mkOption {
type = types.listOf types.str;
default = [];
example = [ "admin1@example.com" "admin2@example.com" ];
description = "List of administrators of the current host";
};
extraConfig = mkOption {
type = types.lines;
default = "";
description = "Additional prosody configuration";
};
};
};
###### implementation
config = mkIf cfg.enable {
environment.systemPackages = [ cfg.package ];
environment.etc."prosody/prosody.cfg.lua".text = ''
pidfile = "/run/prosody/prosody.pid"
log = "*syslog"
data_path = "${cfg.dataDir}"
plugin_paths = {
${lib.concatStringsSep ", " (map (n: "\"${n}\"") cfg.extraPluginPaths) }
}
${ optionalString (cfg.ssl != null) (createSSLOptsStr cfg.ssl) }
admins = ${toLua cfg.admins}
-- we already build with libevent, so we can just enable it for a more performant server
use_libevent = true
modules_enabled = {
${ lib.concatStringsSep "\n\ \ " (lib.mapAttrsToList
(name: val: optionalString val "${toLua name};")
cfg.modules) }
${ lib.concatStringsSep "\n" (map (x: "${toLua x};") cfg.package.communityModules)}
${ lib.concatStringsSep "\n" (map (x: "${toLua x};") cfg.extraModules)}
};
allow_registration = ${toLua cfg.allowRegistration}
c2s_require_encryption = ${toLua cfg.c2sRequireEncryption}
s2s_require_encryption = ${toLua cfg.s2sRequireEncryption}
s2s_secure_auth = ${toLua cfg.s2sSecureAuth}
s2s_insecure_domains = ${toLua cfg.s2sInsecureDomains}
s2s_secure_domains = ${toLua cfg.s2sSecureDomains}
${ cfg.extraConfig }
${ lib.concatStringsSep "\n" (lib.mapAttrsToList (n: v: ''
VirtualHost "${v.domain}"
enabled = ${boolToString v.enabled};
${ optionalString (v.ssl != null) (createSSLOptsStr v.ssl) }
${ v.extraConfig }
'') cfg.virtualHosts) }
'';
users.users.prosody = mkIf (cfg.user == "prosody") {
uid = config.ids.uids.prosody;
description = "Prosody user";
createHome = true;
inherit (cfg) group;
home = "${cfg.dataDir}";
};
users.groups.prosody = mkIf (cfg.group == "prosody") {
gid = config.ids.gids.prosody;
};
systemd.services.prosody = {
description = "Prosody XMPP server";
after = [ "network-online.target" ];
wants = [ "network-online.target" ];
wantedBy = [ "multi-user.target" ];
restartTriggers = [ config.environment.etc."prosody/prosody.cfg.lua".source ];
serviceConfig = {
User = cfg.user;
Group = cfg.group;
Type = "forking";
RuntimeDirectory = [ "prosody" ];
PIDFile = "/run/prosody/prosody.pid";
ExecStart = "${cfg.package}/bin/prosodyctl start";
ExecReload = "${pkgs.coreutils}/bin/kill -HUP $MAINPID";
};
};
};
}