Roku-JWTLib

BrightScript Library to create, read and validate JSON Web Tokens

Functions

readJWT

Read a JWT and returns the body

  @param jwtData, JWT parts in string
  @param key, Secret key string used to sign the JWT
  @return AssocArray JWT Body

Usage :

  jwtBody = readJWT("eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJjb21tYW5kIjoiUGxheWVyIEpvaW5lZCIsImlhdCI6MTUzODU3NTI1Mywib3B0aW9ucyI6eyJuYW1lIjoiVGVzdCJ9fQ.mVwXgC_FEbkgcaB8lIN9vJBwYJt7rtWxaepEBdFuy2M", "This is a key") 

writeJWT

Write a JWT using Algorithm, Body and key

  @param String algorithm, Algorithm to use for signing
  @param AssocArray body, Data to add as JWT body
  @param String key, Secret key string used to sign the JWT
  @return String JWT returned

Usage :

  JWTString = writeJWT("SHA256", {"User": "Username", "id": 123}, "Secret Key")

validateJWT

Validates the Hash or Certificate for the jwt

  @param algorithm, Algorithm from the JWT header JSON
  @param jwtHeader, JWT Header in base64 string
  @param jwtBody, JWT Body in base64 string
  @param jwtSig, JWT Signature in base64url string
  @param key, Secret Key string used to sign JWT
  @return Bool if JWT is valid

Usage :

  valid = validateJWT("HS256", "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9", "eyJjb21tYW5kIjoiUGxheWVyIEpvaW5lZCIsImlhdCI6MTUzODU3NTI1Mywib3B0aW9ucyI6eyJuYW1lIjoiVGVzdCJ9fQ", "mVwXgC_FEbkgcaB8lIN9vJBwYJt7rtWxaepEBdFuy2M")

base64ToBase64Url

Convert base64 to base64url

  @param base64, base64 to convert to base64url
  @return Converted base64url

Usage :

  base64Url = base64ToBase64Url("mVwXgC_FEbkgcaB8lIN9vJBwYJt7rtWxaepEBdFuy2M")

base64UrlToBase64

Convert base64url to base64

  @param base64url, base64URL to convert to base64
  @return Converted base64

Usage :

  base64 = base64ToBase64Url("mVwXgC_FEbkgcaB8lIN9vJBwYJt7rtWxaepEBdFuy2M")