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111 lines
2.6 KiB
111 lines
2.6 KiB
package main
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import (
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b64 "encoding/base64"
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"encoding/pem"
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"fmt"
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"io/ioutil"
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"net"
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"os"
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"github.com/Baozisoftware/qrcode-terminal-go"
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"github.com/glendc/go-external-ip"
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"github.com/skip2/go-qrcode"
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)
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type certificates struct {
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Cert string `json:"c"`
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Macaroon string `json:"m"`
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Ip string `json:"ip,omitempty"`
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}
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func getLocalIP() string {
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addrs, err := net.InterfaceAddrs()
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if err != nil {
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return ""
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}
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for _, address := range addrs {
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if ipnet, ok := address.(*net.IPNet); ok && !ipnet.IP.IsLoopback() {
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if ipnet.IP.To4() != nil {
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return ipnet.IP.String()
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}
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}
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}
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return ""
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}
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func getPublicIP() string {
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consensus := externalip.DefaultConsensus(nil, nil)
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ip, err := consensus.ExternalIP()
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if err != nil {
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fmt.Println(err)
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os.Exit(1)
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}
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return ip.String()
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}
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func main() {
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loadedConfig, err := loadConfig()
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if err != nil {
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fmt.Println()
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return
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}
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certBytes, err := ioutil.ReadFile(loadedConfig.TLSCertPath)
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if err != nil {
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fmt.Println(err)
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return
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}
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block, _ := pem.Decode(certBytes)
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if block == nil || block.Type != "CERTIFICATE" {
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fmt.Println("failed to decode PEM block containing certificate")
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}
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certificate := b64.RawURLEncoding.EncodeToString([]byte(block.Bytes))
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var macBytes []byte
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if loadedConfig.LndConnect.Invoice {
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macBytes, err = ioutil.ReadFile(loadedConfig.InvoiceMacPath)
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} else if loadedConfig.LndConnect.Readonly {
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macBytes, err = ioutil.ReadFile(loadedConfig.ReadMacPath)
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} else {
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macBytes, err = ioutil.ReadFile(loadedConfig.AdminMacPath)
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}
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if err != nil {
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fmt.Println(err)
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return
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}
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macaroonB64 := b64.RawURLEncoding.EncodeToString([]byte(macBytes))
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ipString := ""
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if loadedConfig.LndConnect.Host != "" {
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ipString = loadedConfig.LndConnect.Host
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} else if loadedConfig.LndConnect.LocalIp {
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ipString = getLocalIP()
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} else if loadedConfig.LndConnect.Localhost {
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ipString = "127.0.0.1"
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} else {
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ipString = getPublicIP()
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}
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ipString = net.JoinHostPort(
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ipString, fmt.Sprint(loadedConfig.LndConnect.Port),
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)
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urlString := fmt.Sprintf("lndconnect:?cert=%s&macaroon=%s&host=%s", certificate, macaroonB64, ipString)
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if loadedConfig.LndConnect.Json {
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fmt.Println(urlString)
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} else if loadedConfig.LndConnect.Image {
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qrcode.WriteFile(urlString, qrcode.Medium, 512, "lndconnect-qr.png")
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fmt.Println("Wrote QR Code to file \"lndconnect-qr.png\"")
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} else {
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obj := qrcodeTerminal.New()
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obj.Get(urlString).Print()
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fmt.Println("\n⚠️ Press \"cmd + -\" a few times to see the full QR Code!\nIf that doesn't work run \"lndconnect -j\" to get a code you can copy paste into the app.")
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}
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}
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