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|
{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.aria2;
homeDir = "/var/lib/aria2";
settingsDir = "${homeDir}";
sessionFile = "${homeDir}/aria2.session";
downloadDir = "${homeDir}/Downloads";
rangesToStringList = map (x: builtins.toString x.from +"-"+ builtins.toString x.to);
settingsFile = pkgs.writeText "aria2.conf"
''
dir=${cfg.downloadDir}
listen-port=${concatStringsSep "," (rangesToStringList cfg.listenPortRange)}
rpc-listen-port=${toString cfg.rpcListenPort}
rpc-secret=${cfg.rpcSecret}
'';
in
{
options = {
services.aria2 = {
enable = mkOption {
type = types.bool;
default = false;
description = ''
Whether or not to enable the headless Aria2 daemon service.
Aria2 daemon can be controlled via the RPC interface using
one of many WebUI (http://localhost:6800/ by default).
Targets are downloaded to ${downloadDir} by default and are
accessible to users in the "aria2" group.
'';
};
openPorts = mkOption {
type = types.bool;
default = false;
description = ''
Open listen and RPC ports found in listenPortRange and rpcListenPort
options in the firewall.
'';
};
downloadDir = mkOption {
type = types.string;
default = "${downloadDir}";
description = ''
Directory to store downloaded files.
'';
};
listenPortRange = mkOption {
type = types.listOf types.attrs;
default = [ { from = 6881; to = 6999; } ];
description = ''
Set UDP listening port range used by DHT(IPv4, IPv6) and UDP tracker.
'';
};
rpcListenPort = mkOption {
type = types.int;
default = 6800;
description = "Specify a port number for JSON-RPC/XML-RPC server to listen to. Possible Values: 1024-65535";
};
rpcSecret = mkOption {
type = types.string;
default = "aria2rpc";
description = ''
Set RPC secret authorization token.
Read https://aria2.github.io/manual/en/html/aria2c.html#rpc-auth to know how this option value is used.
'';
};
extraArguments = mkOption {
type = types.string;
example = "--rpc-listen-all --remote-time=true";
default = "";
description = ''
Additional arguments to be passed to Aria2.
'';
};
};
};
config = mkIf cfg.enable {
# Need to open ports for proper functioning
networking.firewall = mkIf cfg.openPorts {
allowedUDPPortRanges = config.services.aria2.listenPortRange;
allowedTCPPorts = [ config.services.aria2.rpcListenPort ];
};
users.users.aria2 = {
group = "aria2";
uid = config.ids.uids.aria2;
description = "aria2 user";
home = homeDir;
createHome = false;
};
users.groups.aria2.gid = config.ids.gids.aria2;
systemd.services.aria2 = {
description = "aria2 Service";
after = [ "local-fs.target" "network.target" ];
wantedBy = [ "multi-user.target" ];
preStart = ''
mkdir -m 0770 -p "${homeDir}"
chown aria2:aria2 "${homeDir}"
if [[ ! -d "${config.services.aria2.downloadDir}" ]]
then
mkdir -m 0770 -p "${config.services.aria2.downloadDir}"
chown aria2:aria2 "${config.services.aria2.downloadDir}"
fi
if [[ ! -e "${sessionFile}" ]]
then
touch "${sessionFile}"
chown aria2:aria2 "${sessionFile}"
fi
cp -f "${settingsFile}" "${settingsDir}/aria2.conf"
'';
serviceConfig = {
Restart = "on-abort";
ExecStart = "${pkgs.aria2}/bin/aria2c --enable-rpc --conf-path=${settingsDir}/aria2.conf ${config.services.aria2.extraArguments} --save-session=${sessionFile}";
ExecReload = "${pkgs.coreutils}/bin/kill -HUP $MAINPID";
User = "aria2";
Group = "aria2";
PermissionsStartOnly = true;
};
};
};
}
|