nix-bitcoin/modules/lndconnect-onion.nix

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{ config, lib, pkgs, ... }:
with lib;
let
options = {
services.lnd.lndconnectOnion.enable = mkOption {
type = types.bool;
default = false;
description = ''
Create an onion service for the lnd REST server.
Add a `lndconnect-onion` binary to the system environment.
See: https://github.com/LN-Zap/lndconnect
Usage:
```
# Print QR code
lndconnect-onion
# Print URL
lndconnect-onion --url
```
'';
};
services.clightning-rest.lndconnectOnion.enable = mkOption {
type = types.bool;
default = false;
description = ''
Create an onion service for clightning-rest.
Add a `lndconnect-onion-clightning` binary to the system environment.
See: https://github.com/LN-Zap/lndconnect
Usage:
```
# Print QR code
lndconnect-onion-clightning
# Print URL
lndconnect-onion-clightning --url
```
'';
};
};
nbLib = config.nix-bitcoin.lib;
runAsUser = config.nix-bitcoin.runAsUserCmd;
inherit (config.services)
lnd
clightning
clightning-rest;
mkLndconnect = {
name,
shebang ? "#!${pkgs.stdenv.shell} -e",
onionService,
port,
certPath,
macaroonPath
}:
# TODO-EXTERNAL:
# lndconnect requires a --configfile argument, although it's unused
# https://github.com/LN-Zap/lndconnect/issues/25
pkgs.writeScriptBin name ''
${shebang}
exec ${config.nix-bitcoin.pkgs.lndconnect}/bin/lndconnect \
--host=$(cat ${config.nix-bitcoin.onionAddresses.dataDir}/${onionService}) \
--port=${toString port} \
--tlscertpath='${certPath}' \
--adminmacaroonpath='${macaroonPath}' \
--configfile=/dev/null "$@"
'';
operatorName = config.nix-bitcoin.operator.name;
in {
inherit options;
config = mkMerge [
(mkIf (lnd.enable && lnd.lndconnectOnion.enable) {
services.tor = {
enable = true;
relay.onionServices.lnd-rest = nbLib.mkOnionService {
target.addr = nbLib.address lnd.restAddress;
target.port = lnd.restPort;
port = lnd.restPort;
};
};
nix-bitcoin.onionAddresses.access.${lnd.user} = [ "lnd-rest" ];
environment.systemPackages = [(
mkLndconnect {
name = "lndconnect-onion";
# Run as lnd user because the macaroon and cert are not group-readable
shebang = "#!/usr/bin/env -S ${runAsUser} ${lnd.user} ${pkgs.bash}/bin/bash";
onionService = "${lnd.user}/lnd-rest";
port = lnd.restPort;
certPath = lnd.certPath;
macaroonPath = "${lnd.networkDir}/admin.macaroon";
}
)];
})
(mkIf (clightning-rest.enable && clightning-rest.lndconnectOnion.enable) {
services.tor = {
enable = true;
relay.onionServices.clightning-rest = nbLib.mkOnionService {
target.addr = nbLib.address clightning-rest.address;
target.port = clightning-rest.port;
port = clightning-rest.port;
};
};
# This also allows nodeinfo to show the clightning-rest onion address
nix-bitcoin.onionAddresses.access.${operatorName} = [ "clightning-rest" ];
environment.systemPackages = [(
mkLndconnect {
name = "lndconnect-onion-clightning";
onionService = "${operatorName}/clightning-rest";
port = clightning-rest.port;
certPath = "${clightning-rest.dataDir}/certs/certificate.pem";
macaroonPath = "${clightning-rest.dataDir}/certs/access.macaroon";
}
)];
})
];
}