add go files

config.go

@@ -0,0 +1,76 @@
+package main
+
+import (
+	"os"
+	"os/user"
+	"path/filepath"
+	"strings"
+
+	flags "github.com/jessevdk/go-flags"
+	"github.com/roasbeef/btcutil"
+)
+
+const (
+	defaultConfigFilename     = "lnd.conf"
+	defaultTLSCertFilename    = "tls.cert"
+	defaultAdminMacFilename   = "admin.macaroon"
+)
+
+var (
+	defaultLndDir     = btcutil.AppDataDir("lnd", false)
+	defaultConfigFile = filepath.Join(defaultLndDir, defaultConfigFilename)
+	defaultTLSCertPath = filepath.Join(defaultLndDir, defaultTLSCertFilename)
+	defaultAdminMacPath   = filepath.Join(defaultLndDir, defaultAdminMacFilename)
+)
+
+// config defines the configuration options for lnd.
+//
+// See loadConfig for further details regarding the configuration
+// loading+parsing process.
+type config struct {
+	LndDir         string   `long:"lnddir" description:"The base directory that contains lnd's data, logs, configuration file, etc."`
+	ConfigFile     string   `long:"C" long:"configfile" description:"Path to configuration file"`
+	TLSCertPath    string   `long:"tlscertpath" description:"Path to write the TLS certificate for lnd's RPC and REST services"`
+	AdminMacPath   string   `long:"adminmacaroonpath" description:"Path to write the admin macaroon for lnd's RPC and REST services if it doesn't exist"`
+}
+
+func loadConfig() (*config, error) {
+	defaultCfg := config{
+		LndDir:         defaultLndDir,
+		ConfigFile:     defaultConfigFile,
+		TLSCertPath:    defaultTLSCertPath,
+		AdminMacPath:   defaultAdminMacPath,
+	}
+
+	cfg := defaultCfg
+	configFile := cleanAndExpandPath(defaultCfg.ConfigFile)
+	flags.IniParse(configFile, &cfg)
+
+	cfg.TLSCertPath = cleanAndExpandPath(cfg.TLSCertPath)
+	cfg.AdminMacPath = cleanAndExpandPath(cfg.AdminMacPath)
+
+	return &cfg, nil
+}
+
+// cleanAndExpandPath expands environment variables and leading ~ in the
+// passed path, cleans the result, and returns it.
+// This function is taken from https://github.com/btcsuite/btcd
+func cleanAndExpandPath(path string) string {
+	// Expand initial ~ to OS specific home directory.
+	if strings.HasPrefix(path, "~") {
+		var homeDir string
+
+		user, err := user.Current()
+		if err == nil {
+			homeDir = user.HomeDir
+		} else {
+			homeDir = os.Getenv("HOME")
+		}
+
+		path = strings.Replace(path, "~", homeDir, 1)
+	}
+
+	// NOTE: The os.ExpandEnv doesn't work with Windows-style %VARIABLE%,
+	// but the variables can still be expanded via POSIX-style $VARIABLE.
+	return filepath.Clean(os.ExpandEnv(path))
+}

zapconnect.go

@@ -0,0 +1,38 @@
+package main
+
+import (
+	"fmt"
+	"io/ioutil"
+	"github.com/Baozisoftware/qrcode-terminal-go"
+	"encoding/json"
+	b64 "encoding/base64"
+)
+
+type certificates struct {
+    Cert		string `json:"c"`
+    Macaroon	string `json:"m"`
+}
+
+func main() {
+	loadedConfig, _ := loadConfig()
+
+	certBytes, err := ioutil.ReadFile(loadedConfig.TLSCertPath)
+	if err != nil {
+        fmt.Print(err)
+    }
+
+    macBytes, err := ioutil.ReadFile(loadedConfig.AdminMacPath)
+	if err != nil {
+        fmt.Print(err)
+    }
+
+    sEnc := b64.StdEncoding.EncodeToString([]byte(macBytes))
+
+	cert := &certificates{
+        Cert:	  string(certBytes),
+        Macaroon: sEnc}
+    certB, _ := json.Marshal(cert)
+
+    obj := qrcodeTerminal.New()
+	obj.Get(string(certB)).Print()
+}