{ config, lib, pkgs, ... }: with config.krebs.lib; let cfg = config.makefu.rtorrent; webcfg = config.makefu.rtorrent.web; rucfg = config.makefu.rtorrent.rutorrent; nginx-user = config.services.nginx.user; nginx-group = config.services.nginx.group; fpm-socket = "/var/run/php5-fpm-rutorrent.sock"; webdir = rucfg.webdir; rutorrent-deps = with pkgs; [ curl php coreutils procps ffmpeg mediainfo ] ++ (if (config.nixpkgs.config.allowUnfree or false) then trace "enabling unfree packages for rutorrent" [ unrar unzip ] else trace "not enabling unfree packages for rutorrent because allowUnfree is unset" []) ; rutorrent = pkgs.stdenv.mkDerivation { name = "rutorrent-src-3.7"; src = pkgs.fetchFromGitHub { owner = "Novik"; repo = "rutorrent"; rev = "b727523a153454d4976f04b0c47336ae57cc50d5"; sha256 = "0s5wa0jnck781amln9c2p4pc0i5mq3j5693ra151lnwhz63aii4a"; }; phases = [ "patchPhase" "installPhase" ]; patchPhase = '' cp -r $src src/ chmod u+w -R src/ sed -i -e 's#^\s*$scgi_port.*#$scgi_port = 0;#' \ -e 's#^\s*$scgi_host.*#$scgi_host = "unix://${cfg.xmlrpc-socket}";#' \ "src/conf/config.php" ''; installPhase = '' cp -r src/ $out echo "replacing scgi port and host variable in conf/config.php" ''; }; systemd-logfile = cfg.workDir + "/rtorrent-systemd.log"; configFile = pkgs.writeText "rtorrent-config" '' # THIS FILE IS AUTOGENERATED ${optionalString (cfg.listenPort != null) '' port_range = ${toString cfg.listenPort}-${toString cfg.listenPort} port_random = no ''} ${optionalString (cfg.watchDir != null) '' schedule = watch_directory,5,5load_start=${cfg.watchDir}/*.torrent ''} directory = ${cfg.downloadDir} session = ${cfg.sessionDir} ${optionalString (cfg.enableXMLRPC ) '' # prepare socket and set permissions. rtorrent user is part of group nginx # TODO: configure a shared torrent group execute_nothrow = rm,${cfg.xmlrpc-socket} scgi_local = ${cfg.xmlrpc-socket} schedule = scgi_permission,0,0,"execute.nothrow=chmod,\"ug+w,o=\",${cfg.xmlrpc-socket}" ''} system.file_allocate.set = ${if cfg.preAllocate then "yes" else "no"} # Prepare systemd logging log.open_file = "rtorrent-systemd", ${systemd-logfile} log.add_output = "warn", "rtorrent-systemd" log.add_output = "notice", "rtorrent-systemd" log.add_output = "info", "rtorrent-systemd" # log.add_output = "debug", "rtorrent-systemd" log.execute = ${systemd-logfile}.execute log.xmlrpc = ${systemd-logfile}.xmlrpc ${cfg.extraConfig} ''; out = { options.makefu.rtorrent = api; # This only works because none of the attrsets returns the same key config = with lib; mkIf cfg.enable (lib.mkMerge [ (lib.mkIf webcfg.enable rpcweb-imp) # only build rutorrent-imp if webcfg is enabled as well (lib.mkIf (webcfg.enable && rucfg.enable) rutorrent-imp) imp ]); }; api = { enable = mkEnableOption "rtorrent"; web = { # configure NGINX to provide /RPC2 for listen address # authentication also applies to rtorrent.rutorrent enable = mkEnableOption "rtorrent nginx web RPC"; listenAddress = mkOption { type = types.str; description ='' nginx listen address for rtorrent web ''; default = "localhost:8006"; }; enableAuth = mkEnableOption "rutorrent authentication"; authfile = mkOption { type = types.path; description = '' basic authentication file to be used. Use `${pkgs.apacheHttpd}/bin/htpasswd -c <file> <username>` to create the file. Only in use if authentication is enabled. ''; }; }; rutorrent = { enable = mkEnableOption "rutorrent"; # requires rtorrent.web.enable package = mkOption { type = types.package; description = '' path to rutorrent package. When using your own ruTorrent package, make sure you patch the scgi_port and scgi_host. ''; default = rutorrent; }; webdir = mkOption { type = types.path; description = '' rutorrent php files will be written to this folder. when using nginx, be aware that the the folder should be readable by nginx. because rutorrent does not hold mutable data in a separate folder these files must be writable. ''; default = "/var/lib/rutorrent"; }; }; package = mkOption { type = types.package; default = pkgs.rtorrent; }; # TODO: enable xmlrpc with web.enable enableXMLRPC = mkEnableOption "rtorrent xmlrpc via socket"; xmlrpc-socket = mkOption { type = types.str; description = '' enable xmlrpc at given socket. Required for web-interface. for documentation see: https://github.com/rakshasa/rtorrent/wiki/RPC-Setup-XMLRPC ''; default = cfg.workDir + "/rtorrent.sock"; }; preAllocate = mkOption { type = types.bool; description = '' Pre-Allocate torrent files ''; default = true; }; logLevel = mkOption { type = types.str; description = '' Log level to be used for systemd log ''; default = "warn"; }; downloadDir = mkOption { type = types.path; description = '' directory where torrents are stored ''; default = cfg.workDir + "/downloads"; }; sessionDir = mkOption { type = types.path; description = '' directory where torrent progress is stored ''; default = cfg.workDir + "/rtorrent-session"; }; watchDir = mkOption { type = with types; nullOr str; description = '' directory to watch for torrent files. If unset, no watch directory will be configured ''; default = null; }; listenPort = mkOption { type = with types; nullOr int; description ='' listening port. if you want multiple ports, use extraConfig port_range ''; }; extraConfig = mkOption { type = types.string; description = '' config to be placed into ${cfg.workDir}/.rtorrent.rc see ${cfg.package}/share/doc/rtorrent/rtorrent.rc ''; default = ""; }; user = mkOption { description = '' user which will run rtorrent. if kept default a new user will be created ''; type = types.str; default = "rtorrent"; }; workDir = mkOption { description = '' working directory. rtorrent will search in HOME for `.rtorrent.rc` ''; type = types.str; default = "/var/lib/rtorrent"; }; }; imp = { systemd.services = { rtorrent-daemon = { description = "rtorrent headless"; after = [ "network.target" ]; wantedBy = [ "multi-user.target" ]; restartIfChanged = true; serviceConfig = { Type = "forking"; ExecStartPre = pkgs.writeDash "prepare-folder" '' mkdir -p ${cfg.workDir} ${cfg.sessionDir} chmod 770 ${cfg.workDir} ${cfg.sessionDir} touch ${systemd-logfile} cp -f ${configFile} ${cfg.workDir}/.rtorrent.rc ''; ExecStart = "${pkgs.tmux.bin}/bin/tmux new-session -s rt -n rtorrent -d 'PATH=/bin:/usr/bin:${makeBinPath rutorrent-deps} ${cfg.package}/bin/rtorrent'"; # PrivateTmp = true; ## now you can simply sudo -u rtorrent tmux a ## otherwise the tmux session is stored in some private folder in /tmp WorkingDirectory = cfg.workDir; Restart = "on-failure"; User = "${cfg.user}"; }; }; rtorrent-log = { after = [ "rtorrent-daemon.service" ]; bindsTo = [ "rtorrent-daemon.service" ]; wantedBy = [ "rtorrent-daemon.service" ]; serviceConfig = { ExecStart = "${pkgs.coreutils}/bin/tail -f ${systemd-logfile}"; User = "${cfg.user}"; }; }; } // (optionalAttrs webcfg.enable { rutorrent-prepare = { after = [ "rtorrent-daemon.service" ]; bindsTo = [ "rtorrent-daemon.service" ]; wantedBy = [ "rtorrent-daemon.service" ]; serviceConfig = { Type = "oneshot"; # we create the folder and set the permissions to allow nginx # TODO: update files if the version of rutorrent changed ExecStart = pkgs.writeDash "create-webconfig-dir" '' if [ ! -e ${webdir} ];then echo "creating webconfiguration directory for rutorrent: ${webdir}" cp -r ${rucfg.package} ${webdir} chown -R ${cfg.user}:${nginx-group} ${webdir} chmod -R 770 ${webdir} else echo "not overwriting ${webdir}" fi ''; }; }; }) // (optionalAttrs rucfg.enable { }); users = lib.mkIf (cfg.user == "rtorrent") { users.rtorrent = { uid = genid "rtorrent"; home = cfg.workDir; group = nginx-group; shell = "/bin/sh"; #required for tmux isSystemUser = true; createHome = true; }; groups.rtorrent.gid = genid "rtorrent"; }; }; rpcweb-imp = { krebs.nginx.enable = mkDefault true; krebs.nginx.servers.rtorrent = { listen = [ webcfg.listenAddress ]; server-names = [ "default" ]; extraConfig = '' ${optionalString webcfg.enableAuth '' auth_basic "rtorrent"; auth_basic_user_file ${webcfg.authfile}; ''} ${optionalString rucfg.enable '' root ${webdir}; ''} ''; locations = [ (nameValuePair "/RPC2" '' include ${pkgs.nginx}/conf/scgi_params; scgi_param SCRIPT_NAME /RPC2; scgi_pass unix:${cfg.xmlrpc-socket}; '') ] ++ (optional rucfg.enable (nameValuePair "~ \.php$" '' client_max_body_size 200M; root ${webdir}; fastcgi_split_path_info ^(.+\.php)(/.+)$; fastcgi_pass unix:${fpm-socket}; try_files $uri =404; fastcgi_index index.php; include ${pkgs.nginx}/conf/fastcgi_params; include ${pkgs.nginx}/conf/fastcgi.conf; '') ); }; }; rutorrent-imp = { services.phpfpm = { # phpfpm does not have an enable option poolConfigs = { rutorrent = '' user = ${nginx-user} group = ${nginx-group} listen = ${fpm-socket} listen.owner = ${nginx-user} listen.group = ${nginx-group} pm = dynamic pm.max_children = 5 pm.start_servers = 2 pm.min_spare_servers = 1 pm.max_spare_servers = 3 chdir = / # errors to journal php_admin_value[error_log] = 'stderr' php_admin_flag[log_errors] = on catch_workers_output = yes env[PATH] = ${makeBinPath rutorrent-deps} ''; }; }; }; in out