TOTP-Go

TOTP-Go.md

TOTP-Go

TOTP in your terminal (with built in add to clipboard) written to go. This is a quick hack and the secret keys are hard-coded into the binary for this example.

Get your TOTP Codes from Authy via alexzorin/authy: authy-export

AUTHY_EXPORT_PASSWORD='<MY_EXPORT_PASSWORD>' go run cmd/authy-export/authy-export.go
otpauth://totp/....?secret=redacted
otpauth://totp/....?secret=redacted
otpauth://totp/....?secret=redacted

Usage: Generating all Tokens

> go run totp.go 
or
❯ ./totp-go
226139 gitlab
445113 google
717220 personal

Usage: Copying 1 Token to the Clipboard

Web Browser for easy pasting:

❯ ./totp-go per
127635 personal Copied to Clipboard

Usage: Only Displaying the totp and not copying to clipboard

Can be used in bash substitution:

❯ ./totp-go per !
127635

Building

# Sync packages
go mod tidy
# Run Code
go run totp.go
# Build Binary
go build
# Run Binary
./totp-go sec
# Copy to local bin
cp totp-go /usr/local/bin

totp.go

package main

import (
	"fmt"
	"github.com/atotto/clipboard"
	"github.com/pquerna/otp"
	"github.com/pquerna/otp/totp"
	"os"
	"strings"
	"time"
)

var otpList = map[string]string{
    "gitlab": "otpauth://totp/gitlab:email@address.com?digits=6&secret=AAABBBBCCCCDDDDD",
    "google": "otpauth://totp/google:email@address.com?digits=6&secret=XXXXYYYYYZZZZZZ",
    "personal": "otpauth://totp/personal:username?digits=6&secret=AAABBBBCCCCDDDDDEEEEFFFF",
}

func main() {
	grep := ""
	quiet := false
	if len(os.Args) > 1 {
		grep = os.Args[1]
	}
	if len(os.Args) > 2 {
		quiet = true
	}

	for secret, uri := range otpList {
		key, err := otp.NewKeyFromURL(uri)
		if err != nil {
			fmt.Fprintf(os.Stderr, "Error parsing URI: %v\n", err)
			continue
		}

		if grep == "" {
			totpCode, err := totp.GenerateCode(key.Secret(), time.Now())
			if err != nil {
				fmt.Fprintf(os.Stderr, "Error generating TOTP code: %v\n", err)
				continue
			}
			fmt.Printf("%s %s\n", totpCode, secret)
			continue
		}

		if strings.Contains(secret, grep) {
			totpCode, err := totp.GenerateCode(key.Secret(), time.Now())
			if err != nil {
				fmt.Fprintf(os.Stderr, "Error generating TOTP code: %v\n", err)
				continue
			}
			if !quiet {
				fmt.Printf("%s %s %s\n", totpCode, secret, "Copied to Clipboard")
				err = clipboard.WriteAll(totpCode)
			} else {
				fmt.Printf("%s\n", totpCode)
			}

			if err != nil {
				fmt.Fprintf(os.Stderr, "Error copying to clipboard: %v\n", err)
			}
			break
		}
	}
}