332 lines
9.7 KiB
Nix
332 lines
9.7 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.services.murmur;
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forking = cfg.logFile != null;
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configFile = pkgs.writeText "murmurd.ini" ''
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database=/var/lib/murmur/murmur.sqlite
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dbDriver=QSQLITE
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autobanAttempts=${toString cfg.autobanAttempts}
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autobanTimeframe=${toString cfg.autobanTimeframe}
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autobanTime=${toString cfg.autobanTime}
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logfile=${optionalString (cfg.logFile != null) cfg.logFile}
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${optionalString forking "pidfile=/run/murmur/murmurd.pid"}
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welcometext="${cfg.welcometext}"
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port=${toString cfg.port}
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${if cfg.hostName == "" then "" else "host="+cfg.hostName}
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${if cfg.password == "" then "" else "serverpassword="+cfg.password}
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bandwidth=${toString cfg.bandwidth}
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users=${toString cfg.users}
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textmessagelength=${toString cfg.textMsgLength}
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imagemessagelength=${toString cfg.imgMsgLength}
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allowhtml=${boolToString cfg.allowHtml}
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logdays=${toString cfg.logDays}
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bonjour=${boolToString cfg.bonjour}
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sendversion=${boolToString cfg.sendVersion}
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${if cfg.registerName == "" then "" else "registerName="+cfg.registerName}
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${if cfg.registerPassword == "" then "" else "registerPassword="+cfg.registerPassword}
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${if cfg.registerUrl == "" then "" else "registerUrl="+cfg.registerUrl}
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${if cfg.registerHostname == "" then "" else "registerHostname="+cfg.registerHostname}
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certrequired=${boolToString cfg.clientCertRequired}
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${if cfg.sslCert == "" then "" else "sslCert="+cfg.sslCert}
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${if cfg.sslKey == "" then "" else "sslKey="+cfg.sslKey}
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${if cfg.sslCa == "" then "" else "sslCA="+cfg.sslCa}
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${cfg.extraConfig}
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'';
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in
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{
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imports = [
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(mkRenamedOptionModule [ "services" "murmur" "welcome" ] [ "services" "murmur" "welcometext" ])
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(mkRemovedOptionModule [ "services" "murmur" "pidfile" ] "Hardcoded to /run/murmur/murmurd.pid now")
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];
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options = {
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services.murmur = {
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enable = mkOption {
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type = types.bool;
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default = false;
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description = "If enabled, start the Murmur Mumble server.";
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};
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openFirewall = mkOption {
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type = types.bool;
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default = false;
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description = ''
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Open ports in the firewall for the Murmur Mumble server.
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'';
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};
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autobanAttempts = mkOption {
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type = types.int;
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default = 10;
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description = ''
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Number of attempts a client is allowed to make in
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<literal>autobanTimeframe</literal> seconds, before being
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banned for <literal>autobanTime</literal>.
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'';
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};
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autobanTimeframe = mkOption {
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type = types.int;
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default = 120;
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description = ''
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Timeframe in which a client can connect without being banned
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for repeated attempts (in seconds).
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'';
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};
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autobanTime = mkOption {
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type = types.int;
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default = 300;
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description = "The amount of time an IP ban lasts (in seconds).";
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};
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logFile = mkOption {
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type = types.nullOr types.path;
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default = null;
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example = "/var/log/murmur/murmurd.log";
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description = "Path to the log file for Murmur daemon. Empty means log to journald.";
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};
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welcometext = mkOption {
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type = types.str;
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default = "";
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description = "Welcome message for connected clients.";
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};
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port = mkOption {
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type = types.port;
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default = 64738;
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description = "Ports to bind to (UDP and TCP).";
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};
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hostName = mkOption {
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type = types.str;
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default = "";
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description = "Host to bind to. Defaults binding on all addresses.";
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};
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package = mkOption {
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type = types.package;
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default = pkgs.murmur;
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defaultText = literalExpression "pkgs.murmur";
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description = "Overridable attribute of the murmur package to use.";
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};
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password = mkOption {
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type = types.str;
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default = "";
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description = "Required password to join server, if specified.";
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};
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bandwidth = mkOption {
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type = types.int;
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default = 72000;
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description = ''
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Maximum bandwidth (in bits per second) that clients may send
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speech at.
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'';
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};
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users = mkOption {
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type = types.int;
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default = 100;
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description = "Maximum number of concurrent clients allowed.";
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};
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textMsgLength = mkOption {
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type = types.int;
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default = 5000;
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description = "Max length of text messages. Set 0 for no limit.";
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};
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imgMsgLength = mkOption {
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type = types.int;
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default = 131072;
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description = "Max length of image messages. Set 0 for no limit.";
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};
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allowHtml = mkOption {
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type = types.bool;
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default = true;
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description = ''
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Allow HTML in client messages, comments, and channel
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descriptions.
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'';
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};
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logDays = mkOption {
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type = types.int;
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default = 31;
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description = ''
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How long to store RPC logs for in the database. Set 0 to
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keep logs forever, or -1 to disable DB logging.
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'';
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};
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bonjour = mkOption {
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type = types.bool;
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default = false;
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description = ''
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Enable Bonjour auto-discovery, which allows clients over
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your LAN to automatically discover Murmur servers.
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'';
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};
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sendVersion = mkOption {
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type = types.bool;
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default = true;
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description = "Send Murmur version in UDP response.";
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};
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registerName = mkOption {
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type = types.str;
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default = "";
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description = ''
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Public server registration name, and also the name of the
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Root channel. Even if you don't publicly register your
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server, you probably still want to set this.
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'';
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};
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registerPassword = mkOption {
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type = types.str;
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default = "";
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description = ''
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Public server registry password, used authenticate your
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server to the registry to prevent impersonation; required for
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subsequent registry updates.
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'';
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};
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registerUrl = mkOption {
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type = types.str;
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default = "";
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description = "URL website for your server.";
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};
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registerHostname = mkOption {
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type = types.str;
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default = "";
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description = ''
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DNS hostname where your server can be reached. This is only
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needed if you want your server to be accessed by its
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hostname and not IP - but the name *must* resolve on the
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internet properly.
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'';
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};
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clientCertRequired = mkOption {
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type = types.bool;
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default = false;
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description = "Require clients to authenticate via certificates.";
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};
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sslCert = mkOption {
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type = types.str;
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default = "";
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description = "Path to your SSL certificate.";
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};
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sslKey = mkOption {
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type = types.str;
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default = "";
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description = "Path to your SSL key.";
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};
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sslCa = mkOption {
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type = types.str;
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default = "";
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description = "Path to your SSL CA certificate.";
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};
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extraConfig = mkOption {
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type = types.lines;
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default = "";
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description = "Extra configuration to put into murmur.ini.";
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};
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environmentFile = mkOption {
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type = types.nullOr types.path;
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default = null;
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example = "/var/lib/murmur/murmurd.env";
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description = ''
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Environment file as defined in <citerefentry>
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<refentrytitle>systemd.exec</refentrytitle><manvolnum>5</manvolnum>
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</citerefentry>.
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Secrets may be passed to the service without adding them to the world-readable
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Nix store, by specifying placeholder variables as the option value in Nix and
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setting these variables accordingly in the environment file.
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<programlisting>
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# snippet of murmur-related config
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services.murmur.password = "$MURMURD_PASSWORD";
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</programlisting>
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<programlisting>
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# content of the environment file
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MURMURD_PASSWORD=verysecretpassword
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</programlisting>
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Note that this file needs to be available on the host on which
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<literal>murmur</literal> is running.
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'';
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};
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};
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};
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config = mkIf cfg.enable {
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users.users.murmur = {
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description = "Murmur Service user";
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home = "/var/lib/murmur";
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createHome = true;
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uid = config.ids.uids.murmur;
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group = "murmur";
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};
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users.groups.murmur = {
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gid = config.ids.gids.murmur;
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};
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networking.firewall = mkIf cfg.openFirewall {
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allowedTCPPorts = [ cfg.port ];
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allowedUDPPorts = [ cfg.port ];
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};
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systemd.services.murmur = {
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description = "Murmur Chat Service";
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wantedBy = [ "multi-user.target" ];
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after = [ "network-online.target" ];
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preStart = ''
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${pkgs.envsubst}/bin/envsubst \
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-o /run/murmur/murmurd.ini \
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-i ${configFile}
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'';
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serviceConfig = {
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# murmurd doesn't fork when logging to the console.
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Type = if forking then "forking" else "simple";
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PIDFile = mkIf forking "/run/murmur/murmurd.pid";
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EnvironmentFile = mkIf (cfg.environmentFile != null) cfg.environmentFile;
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ExecStart = "${cfg.package}/bin/mumble-server -ini /run/murmur/murmurd.ini";
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Restart = "always";
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RuntimeDirectory = "murmur";
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RuntimeDirectoryMode = "0700";
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User = "murmur";
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Group = "murmur";
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};
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};
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};
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}
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