273 lines
9 KiB
Nix
273 lines
9 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.services.deluge;
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cfg_web = config.services.deluge.web;
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isDeluge1 = versionOlder cfg.package.version "2.0.0";
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openFilesLimit = 4096;
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listenPortsDefault = [ 6881 6889 ];
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listToRange = x: { from = elemAt x 0; to = elemAt x 1; };
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configDir = "${cfg.dataDir}/.config/deluge";
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configFile = pkgs.writeText "core.conf" (builtins.toJSON cfg.config);
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declarativeLockFile = "${configDir}/.declarative";
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preStart = if cfg.declarative then ''
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if [ -e ${declarativeLockFile} ]; then
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# Was declarative before, no need to back up anything
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${if isDeluge1 then "ln -sf" else "cp"} ${configFile} ${configDir}/core.conf
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ln -sf ${cfg.authFile} ${configDir}/auth
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else
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# Declarative for the first time, backup stateful files
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${if isDeluge1 then "ln -s" else "cp"} -b --suffix=.stateful ${configFile} ${configDir}/core.conf
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ln -sb --suffix=.stateful ${cfg.authFile} ${configDir}/auth
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echo "Autogenerated file that signifies that this server configuration is managed declaratively by NixOS" \
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> ${declarativeLockFile}
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fi
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'' else ''
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if [ -e ${declarativeLockFile} ]; then
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rm ${declarativeLockFile}
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fi
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'';
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in {
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options = {
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services = {
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deluge = {
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enable = mkEnableOption (lib.mdDoc "Deluge daemon");
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openFilesLimit = mkOption {
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default = openFilesLimit;
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type = types.either types.int types.str;
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description = lib.mdDoc ''
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Number of files to allow deluged to open.
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'';
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};
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config = mkOption {
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type = types.attrs;
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default = {};
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example = literalExpression ''
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{
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download_location = "/srv/torrents/";
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max_upload_speed = "1000.0";
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share_ratio_limit = "2.0";
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allow_remote = true;
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daemon_port = 58846;
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listen_ports = [ ${toString listenPortsDefault} ];
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}
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'';
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description = lib.mdDoc ''
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Deluge core configuration for the core.conf file. Only has an effect
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when {option}`services.deluge.declarative` is set to
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`true`. String values must be quoted, integer and
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boolean values must not. See
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<https://git.deluge-torrent.org/deluge/tree/deluge/core/preferencesmanager.py#n41>
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for the available options.
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'';
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};
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declarative = mkOption {
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type = types.bool;
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default = false;
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description = lib.mdDoc ''
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Whether to use a declarative deluge configuration.
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Only if set to `true`, the options
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{option}`services.deluge.config`,
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{option}`services.deluge.openFirewall` and
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{option}`services.deluge.authFile` will be
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applied.
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'';
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};
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openFirewall = mkOption {
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default = false;
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type = types.bool;
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description = lib.mdDoc ''
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Whether to open the firewall for the ports in
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{option}`services.deluge.config.listen_ports`. It only takes effet if
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{option}`services.deluge.declarative` is set to
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`true`.
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It does NOT apply to the daemon port nor the web UI port. To access those
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ports securely check the documentation
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<https://dev.deluge-torrent.org/wiki/UserGuide/ThinClient#CreateSSHTunnel>
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or use a VPN or configure certificates for deluge.
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'';
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};
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dataDir = mkOption {
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type = types.path;
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default = "/var/lib/deluge";
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description = lib.mdDoc ''
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The directory where deluge will create files.
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'';
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};
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authFile = mkOption {
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type = types.path;
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example = "/run/keys/deluge-auth";
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description = lib.mdDoc ''
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The file managing the authentication for deluge, the format of this
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file is straightforward, each line contains a
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username:password:level tuple in plaintext. It only has an effect
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when {option}`services.deluge.declarative` is set to
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`true`.
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See <https://dev.deluge-torrent.org/wiki/UserGuide/Authentication> for
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more information.
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'';
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};
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user = mkOption {
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type = types.str;
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default = "deluge";
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description = lib.mdDoc ''
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User account under which deluge runs.
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'';
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};
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group = mkOption {
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type = types.str;
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default = "deluge";
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description = lib.mdDoc ''
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Group under which deluge runs.
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'';
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};
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extraPackages = mkOption {
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type = types.listOf types.package;
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default = [];
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description = lib.mdDoc ''
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Extra packages available at runtime to enable Deluge's plugins. For example,
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extraction utilities are required for the built-in "Extractor" plugin.
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This always contains unzip, gnutar, xz and bzip2.
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'';
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};
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package = mkPackageOption pkgs "deluge-2_x" { };
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};
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deluge.web = {
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enable = mkEnableOption (lib.mdDoc "Deluge Web daemon");
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port = mkOption {
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type = types.port;
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default = 8112;
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description = lib.mdDoc ''
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Deluge web UI port.
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'';
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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 = lib.mdDoc ''
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Open ports in the firewall for deluge web daemon
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'';
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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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services.deluge.package = mkDefault (
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if versionAtLeast config.system.stateVersion "20.09" then
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pkgs.deluge-2_x
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else
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# deluge-1_x is no longer packaged and this will resolve to an error
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# thanks to the alias for this name. This is left here so that anyone
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# using NixOS older than 20.09 receives that error when they upgrade
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# and is forced to make an intentional choice to switch to deluge-2_x.
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# That might be slightly inconvenient but there is no path to
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# downgrade from 2.x to 1.x so NixOS should not automatically perform
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# this state migration.
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pkgs.deluge-1_x
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);
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# Provide a default set of `extraPackages`.
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services.deluge.extraPackages = with pkgs; [ unzip gnutar xz bzip2 ];
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systemd.tmpfiles.rules = [
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"d '${cfg.dataDir}' 0770 ${cfg.user} ${cfg.group}"
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"d '${cfg.dataDir}/.config' 0770 ${cfg.user} ${cfg.group}"
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"d '${cfg.dataDir}/.config/deluge' 0770 ${cfg.user} ${cfg.group}"
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]
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++ optional (cfg.config ? download_location)
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"d '${cfg.config.download_location}' 0770 ${cfg.user} ${cfg.group}"
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++ optional (cfg.config ? torrentfiles_location)
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"d '${cfg.config.torrentfiles_location}' 0770 ${cfg.user} ${cfg.group}"
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++ optional (cfg.config ? move_completed_path)
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"d '${cfg.config.move_completed_path}' 0770 ${cfg.user} ${cfg.group}";
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systemd.services.deluged = {
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after = [ "network.target" ];
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description = "Deluge BitTorrent Daemon";
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wantedBy = [ "multi-user.target" ];
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path = [ cfg.package ] ++ cfg.extraPackages;
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serviceConfig = {
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ExecStart = ''
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${cfg.package}/bin/deluged \
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--do-not-daemonize \
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--config ${configDir}
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'';
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# To prevent "Quit & shutdown daemon" from working; we want systemd to
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# manage it!
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Restart = "on-success";
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User = cfg.user;
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Group = cfg.group;
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UMask = "0002";
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LimitNOFILE = cfg.openFilesLimit;
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};
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preStart = preStart;
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};
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systemd.services.delugeweb = mkIf cfg_web.enable {
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after = [ "network.target" "deluged.service"];
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requires = [ "deluged.service" ];
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description = "Deluge BitTorrent WebUI";
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wantedBy = [ "multi-user.target" ];
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path = [ cfg.package ];
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serviceConfig = {
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ExecStart = ''
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${cfg.package}/bin/deluge-web \
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${optionalString (!isDeluge1) "--do-not-daemonize"} \
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--config ${configDir} \
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--port ${toString cfg.web.port}
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'';
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User = cfg.user;
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Group = cfg.group;
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};
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};
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networking.firewall = mkMerge [
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(mkIf (cfg.declarative && cfg.openFirewall && !(cfg.config.random_port or true)) {
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allowedTCPPortRanges = singleton (listToRange (cfg.config.listen_ports or listenPortsDefault));
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allowedUDPPortRanges = singleton (listToRange (cfg.config.listen_ports or listenPortsDefault));
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})
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(mkIf (cfg.web.openFirewall) {
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allowedTCPPorts = [ cfg.web.port ];
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})
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];
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environment.systemPackages = [ cfg.package ];
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users.users = mkIf (cfg.user == "deluge") {
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deluge = {
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group = cfg.group;
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uid = config.ids.uids.deluge;
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home = cfg.dataDir;
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description = "Deluge Daemon user";
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};
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};
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users.groups = mkIf (cfg.group == "deluge") {
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deluge = {
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gid = config.ids.gids.deluge;
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};
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};
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};
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}
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