nix-bitcoin/modules/lnd-rest-onion-service.nix

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{ config, lib, pkgs, ... }:
with lib;
let
options.services.lnd.restOnionService = {
enable = mkOption {
default = false;
type = types.bool;
description = ''
Create an onion service for the lnd REST service.
Add a `lndconnect-rest-onion` binary (https://github.com/LN-Zap/lndconnect) to the system environment.
This binary generates QR codes or URIs for connecting applications to lnd via the REST onion service.
'';
};
package = mkOption {
type = types.package;
default = config.nix-bitcoin.pkgs.lndconnect;
description = "The package providing lndconnect binaries.";
};
};
cfg = config.services.lnd.restOnionService;
nbLib = config.nix-bitcoin.lib;
runAsUser = config.nix-bitcoin.runAsUserCmd;
lnd = config.services.lnd;
bin = pkgs.writeScriptBin "lndconnect-rest-onion" ''
#!/usr/bin/env -S ${runAsUser} ${lnd.user} ${pkgs.bash}/bin/bash
exec ${cfg.package}/bin/lndconnect \
--host=$(cat ${config.nix-bitcoin.onionAddresses.dataDir}/lnd/lnd-rest) \
--port=${toString lnd.restPort} \
--lnddir=${lnd.dataDir} \
--tlscertpath=${lnd.certPath} "$@"
'';
in {
inherit options;
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config = mkIf cfg.enable {
services.tor = {
enable = true;
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relay.onionServices.lnd-rest = nbLib.mkOnionService {
target.addr = nbLib.address lnd.restAddress;
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target.port = lnd.restPort;
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port = lnd.restPort;
};
};
nix-bitcoin.onionAddresses.access.lnd = [ "lnd-rest" ];
environment.systemPackages = [ bin ];
};
}