{ config, lib, pkgs, ... }: with lib; let options.services = { btcpayserver = { enable = mkEnableOption "btcpayserver, a self-hosted Bitcoin payment processor"; address = mkOption { type = types.str; default = "127.0.0.1"; description = "Address to listen on."; }; port = mkOption { type = types.port; default = 23000; description = "Port to listen on."; }; package = mkOption { type = types.package; default = if cfg.btcpayserver.lbtc then config.nix-bitcoin.pkgs.btcpayserver.override { altcoinSupport = true; } else config.nix-bitcoin.pkgs.btcpayserver; defaultText = "(See source)"; description = "The package providing btcpayserver binaries."; }; dataDir = mkOption { type = types.path; default = "/var/lib/btcpayserver"; description = "The data directory for btcpayserver."; }; lightningBackend = mkOption { type = types.nullOr (types.enum [ "clightning" "lnd" ]); default = null; description = "The lightning node implementation to use."; }; lbtc = mkOption { type = types.bool; default = false; description = "Enable liquid support in btcpayserver."; }; rootpath = mkOption { type = types.nullOr types.str; default = null; example = "btcpayserver"; description = "The prefix for root-relative btcpayserver URLs."; }; user = mkOption { type = types.str; default = "btcpayserver"; description = "The user as which to run btcpayserver."; }; group = mkOption { type = types.str; default = cfg.btcpayserver.user; description = "The group as which to run btcpayserver."; }; tor.enforce = nbLib.tor.enforce; }; nbxplorer = { enable = mkOption { # This option is only used by netns-isolation internal = true; default = cfg.btcpayserver.enable; description = '' nbxplorer is always enabled when btcpayserver is enabled. ''; }; package = mkOption { type = types.package; default = config.nix-bitcoin.pkgs.nbxplorer; defaultText = "config.nix-bitcoin.pkgs.nbxplorer"; description = "The package providing nbxplorer binaries."; }; address = mkOption { type = types.str; default = "127.0.0.1"; description = "Address to listen on."; }; port = mkOption { type = types.port; default = 24444; description = "Port to listen on."; }; dataDir = mkOption { type = types.path; default = "/var/lib/nbxplorer"; description = "The data directory for nbxplorer."; }; user = mkOption { type = types.str; default = "nbxplorer"; description = "The user as which to run nbxplorer."; }; group = mkOption { type = types.str; default = cfg.nbxplorer.user; description = "The group as which to run nbxplorer."; }; tor.enforce = nbLib.tor.enforce; }; }; cfg = config.services; nbLib = config.nix-bitcoin.lib; inherit (config.services) bitcoind liquidd; in { inherit options; config = mkIf cfg.btcpayserver.enable { services.bitcoind = { enable = true; rpc.users.btcpayserver = { passwordHMACFromFile = true; rpcwhitelist = cfg.bitcoind.rpc.users.public.rpcwhitelist ++ [ "setban" "generatetoaddress" "getpeerinfo" ]; }; listenWhitelisted = true; }; services.clightning.enable = mkIf (cfg.btcpayserver.lightningBackend == "clightning") true; services.lnd = mkIf (cfg.btcpayserver.lightningBackend == "lnd") { enable = true; macaroons.btcpayserver = { inherit (cfg.btcpayserver) user; permissions = ''{"entity":"info","action":"read"},{"entity":"onchain","action":"read"},{"entity":"offchain","action":"read"},{"entity":"address","action":"read"},{"entity":"message","action":"read"},{"entity":"peers","action":"read"},{"entity":"signer","action":"read"},{"entity":"invoices","action":"read"},{"entity":"invoices","action":"write"},{"entity":"address","action":"write"}''; }; }; services.liquidd = mkIf cfg.btcpayserver.lbtc { enable = true; listenWhitelisted = true; }; services.postgresql = { enable = true; ensureDatabases = [ "btcpaydb" "nbxplorer" ]; ensureUsers = [ { name = cfg.btcpayserver.user; ensurePermissions."DATABASE btcpaydb" = "ALL PRIVILEGES"; } { name = cfg.nbxplorer.user; ensurePermissions."DATABASE nbxplorer" = "ALL PRIVILEGES"; } ]; }; systemd.tmpfiles.rules = [ "d '${cfg.nbxplorer.dataDir}' 0770 ${cfg.nbxplorer.user} ${cfg.nbxplorer.group} - -" "d '${cfg.btcpayserver.dataDir}' 0770 ${cfg.btcpayserver.user} ${cfg.btcpayserver.group} - -" ]; systemd.services.nbxplorer = let configFile = builtins.toFile "config" '' network=${bitcoind.network} btcrpcuser=${cfg.bitcoind.rpc.users.btcpayserver.name} btcrpcurl=http://${nbLib.addressWithPort bitcoind.rpc.address cfg.bitcoind.rpc.port} btcnodeendpoint=${nbLib.addressWithPort bitcoind.address bitcoind.whitelistedPort} bind=${cfg.nbxplorer.address} port=${toString cfg.nbxplorer.port} ${optionalString cfg.btcpayserver.lbtc '' chains=btc,lbtc lbtcrpcuser=${liquidd.rpcuser} lbtcrpcurl=http://${nbLib.addressWithPort liquidd.rpc.address liquidd.rpc.port} lbtcnodeendpoint=${nbLib.addressWithPort liquidd.address liquidd.whitelistedPort} ''} postgres=User ID=${cfg.nbxplorer.user};Host=/run/postgresql;Database=nbxplorer automigrate=1 ''; in rec { wantedBy = [ "multi-user.target" ]; requires = [ "bitcoind.service" "postgresql.service" ] ++ optional cfg.btcpayserver.lbtc "liquidd.service"; after = requires; preStart = '' install -m 600 ${configFile} '${cfg.nbxplorer.dataDir}/settings.config' { echo "btcrpcpassword=$(cat ${config.nix-bitcoin.secretsDir}/bitcoin-rpcpassword-btcpayserver)" ${optionalString cfg.btcpayserver.lbtc '' echo "lbtcrpcpassword=$(cat ${config.nix-bitcoin.secretsDir}/liquid-rpcpassword)" ''} } >> '${cfg.nbxplorer.dataDir}/settings.config' ''; serviceConfig = nbLib.defaultHardening // { ExecStart = '' ${cfg.nbxplorer.package}/bin/nbxplorer --conf=${cfg.nbxplorer.dataDir}/settings.config \ --datadir=${cfg.nbxplorer.dataDir} ''; User = cfg.nbxplorer.user; Restart = "on-failure"; RestartSec = "10s"; ReadWritePaths = [ cfg.nbxplorer.dataDir ]; MemoryDenyWriteExecute = "false"; } // nbLib.allowedIPAddresses cfg.nbxplorer.tor.enforce; }; systemd.services.btcpayserver = let nbExplorerUrl = "http://${nbLib.addressWithPort cfg.nbxplorer.address cfg.nbxplorer.port}/"; nbExplorerCookie = "${cfg.nbxplorer.dataDir}/${bitcoind.makeNetworkName "Main" "RegTest"}/.cookie"; configFile = builtins.toFile "btcpayserver-config" ('' network=${bitcoind.network} bind=${cfg.btcpayserver.address} port=${toString cfg.btcpayserver.port} socksendpoint=${config.nix-bitcoin.torClientAddressWithPort} btcexplorerurl=${nbExplorerUrl} btcexplorercookiefile=${nbExplorerCookie} postgres=User ID=${cfg.btcpayserver.user};Host=/run/postgresql;Database=btcpaydb '' + optionalString (cfg.btcpayserver.rootpath != null) '' rootpath=${cfg.btcpayserver.rootpath} '' + optionalString (cfg.btcpayserver.lightningBackend == "clightning") '' btclightning=type=clightning;server=unix:///${cfg.clightning.dataDir}/${bitcoind.makeNetworkName "bitcoin" "regtest"}/lightning-rpc '' + optionalString (cfg.btcpayserver.lightningBackend == "lnd") ( "btclightning=type=lnd-rest;" + "server=https://${cfg.lnd.restAddress}:${toString cfg.lnd.restPort}/;" + "macaroonfilepath=/run/lnd/btcpayserver.macaroon;" + "certfilepath=${config.services.lnd.certPath}" + "\n" ) + optionalString cfg.btcpayserver.lbtc '' chains=btc,lbtc lbtcexplorerurl=${nbExplorerUrl} lbtcexplorercookiefile=${nbExplorerCookie} ''); in let self = { wantedBy = [ "multi-user.target" ]; requires = [ "nbxplorer.service" "postgresql.service" ] ++ optional (cfg.btcpayserver.lightningBackend != null) "${cfg.btcpayserver.lightningBackend}.service"; after = self.requires; serviceConfig = nbLib.defaultHardening // { ExecStart = '' ${cfg.btcpayserver.package}/bin/btcpayserver --conf=${configFile} \ --datadir='${cfg.btcpayserver.dataDir}' ''; User = cfg.btcpayserver.user; Restart = "on-failure"; RestartSec = "10s"; ReadWritePaths = [ cfg.btcpayserver.dataDir ]; MemoryDenyWriteExecute = "false"; } // nbLib.allowedIPAddresses cfg.btcpayserver.tor.enforce; }; in self; users.users.${cfg.nbxplorer.user} = { isSystemUser = true; group = cfg.nbxplorer.group; extraGroups = [ "bitcoinrpc-public" ] ++ optional cfg.btcpayserver.lbtc liquidd.group; home = cfg.nbxplorer.dataDir; }; users.groups.${cfg.nbxplorer.group} = {}; users.users.${cfg.btcpayserver.user} = { isSystemUser = true; group = cfg.btcpayserver.group; extraGroups = [ cfg.nbxplorer.group ] ++ optional (cfg.btcpayserver.lightningBackend == "clightning") cfg.clightning.user; home = cfg.btcpayserver.dataDir; }; users.groups.${cfg.btcpayserver.group} = {}; nix-bitcoin.secrets = { bitcoin-rpcpassword-btcpayserver = { user = cfg.bitcoind.user; group = cfg.nbxplorer.group; }; bitcoin-HMAC-btcpayserver.user = cfg.bitcoind.user; }; nix-bitcoin.generateSecretsCmds.btcpayserver = '' makeBitcoinRPCPassword btcpayserver ''; }; }