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nixpkgs/nixos/modules/services/networking/prosody.nix

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{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.prosody;
sslOpts = { ... }: {
options = {
key = mkOption {
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type = types.path;
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description = "Path to the key file.";
};
# TODO: rename to certificate to match the prosody config
cert = mkOption {
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type = types.path;
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description = "Path to the certificate file.";
};
extraOptions = mkOption {
type = types.attrs;
default = {};
description = "Extra SSL configuration options.";
};
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};
};
moduleOpts = {
# Generally required
roster = mkOption {
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type = types.bool;
default = true;
description = "Allow users to have a roster";
};
saslauth = mkOption {
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type = types.bool;
default = true;
description = "Authentication for clients and servers. Recommended if you want to log in.";
};
tls = mkOption {
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type = types.bool;
default = true;
description = "Add support for secure TLS on c2s/s2s connections";
};
dialback = mkOption {
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type = types.bool;
default = true;
description = "s2s dialback support";
};
disco = mkOption {
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type = types.bool;
default = true;
description = "Service discovery";
};
# Not essential, but recommended
carbons = mkOption {
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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 {
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type = types.bool;
default = true;
description = "Replies to server version requests";
};
uptime = mkOption {
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type = types.bool;
default = true;
description = "Report how long server has been running";
};
time = mkOption {
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type = types.bool;
default = true;
description = "Let others know the time here on this server";
};
ping = mkOption {
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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 {
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type = types.bool;
default = false;
description = "Opens telnet console interface on localhost port 5582";
};
# HTTP modules
bosh = mkOption {
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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 {
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type = types.bool;
default = false;
description = "Serve static files from a directory over HTTP";
};
# Other specific functionality
limits = mkOption {
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type = types.bool;
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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";
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};
};
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toLua = x:
if builtins.isString x then ''"${x}"''
else if builtins.isBool x then (if x == true then "true" else "false")
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else if builtins.isInt x then toString x
else if builtins.isList x then ''{ ${lib.concatStringsSep ", " (map (n: toLua n) x) } }''
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else throw "Invalid Lua value";
createSSLOptsStr = o: ''
ssl = {
key = "${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 {
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type = types.bool;
default = false;
description = "Whether to enable the virtual host";
};
ssl = mkOption {
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type = types.nullOr (types.submodule sslOpts);
default = null;
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description = "Paths to SSL files";
};
extraConfig = mkOption {
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type = types.lines;
default = "";
description = "Additional virtual host specific configuration";
};
};
};
in
{
###### interface
options = {
services.prosody = {
enable = mkOption {
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type = types.bool;
default = false;
description = "Whether to enable the prosody server";
};
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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" ];
};
'';
};
allowRegistration = mkOption {
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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 {
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type = types.listOf types.str;
default = [];
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description = "Enable custom modules";
};
virtualHosts = mkOption {
description = "Define the virtual hosts";
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type = with types; loaOf (submodule vHostOpts);
example = {
myhost = {
domain = "my-xmpp-example-host.org";
enabled = true;
};
};
default = {
localhost = {
domain = "localhost";
enabled = true;
};
};
};
ssl = mkOption {
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type = types.nullOr (types.submodule sslOpts);
default = null;
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description = "Paths to SSL files";
};
admins = mkOption {
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type = types.listOf types.str;
default = [];
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example = [ "admin1@example.com" "admin2@example.com" ];
description = "List of administrators of the current host";
};
extraConfig = mkOption {
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type = types.lines;
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default = "";
description = "Additional prosody configuration";
};
};
};
###### implementation
config = mkIf cfg.enable {
environment.systemPackages = [ pkgs.prosody ];
environment.etc."prosody/prosody.cfg.lua".text = ''
pidfile = "/var/lib/prosody/prosody.pid"
log = "*syslog"
data_path = "/var/lib/prosody"
${ 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.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}"
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enabled = ${boolToString v.enabled};
${ optionalString (v.ssl != null) (createSSLOptsStr v.ssl) }
${ v.extraConfig }
'') cfg.virtualHosts) }
'';
users.extraUsers.prosody = {
uid = config.ids.uids.prosody;
description = "Prosody user";
createHome = true;
group = "prosody";
home = "/var/lib/prosody";
};
users.extraGroups.prosody = {
gid = config.ids.gids.prosody;
};
systemd.services.prosody = {
description = "Prosody XMPP server";
after = [ "network-online.target" ];
wants = [ "network-online.target" ];
wantedBy = [ "multi-user.target" ];
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restartTriggers = [ config.environment.etc."prosody/prosody.cfg.lua".source ];
serviceConfig = {
User = "prosody";
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Type = "forking";
PIDFile = "/var/lib/prosody/prosody.pid";
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ExecStart = "${cfg.package}/bin/prosodyctl start";
};
};
};
}