nonce

README

Note

Project is retired and not under active development.

nonce-golang

One time token library

Works with Google Go version 1.x

Documentation

Overview

A nonce is a number or string used only once. This is useful for generating a unique token for login pages to prevent duplicate or unauthorized submissions. @url github.com/LarryBattle/nonce-golang @license MIT , 2013 @author Larry Battle, github.com/LarryBattle

Index

• Constants
• func CheckThenMarkToken(token string) error
• func CheckToken(token string) error
• func MarkToken(token string)
• func NewToken() string
• func SetIO(io IO)
• type IO

Constants

const (
	Version    = "0.1.0"
	Token_New  = true
	Token_Used = false
)

Functions

func CheckThenMarkToken

func CheckThenMarkToken(token string) error

Checks if the token is known and new. After the check, the token is marked as unused

func CheckToken

func CheckToken(token string) error

Checks for three conditions. 1. If a token is supplied 2. If the passed token was created 3. If the passed token isn't used' An error will be returned if any of the conditions are false

func MarkToken

func MarkToken(token string)

Saves the token as used.

func NewToken

func NewToken() string

Returns a new unique token

func SetIO

func SetIO(io IO)

Set the IO reader and writer

Types

type IO

type IO interface {
	Set(token string, val bool)
	Get(token string) (val bool, has bool)
}

The interface for saving and retrieving data