Add "getTokenInfo(accessToken) => TokenInfo" method to UsersUAA #15
Description
Add method to decode access token into username, email, and user guid. user guid is required for management / permission calls.
from the go implementation:
type TokenInfo struct {
Username string `json:"user_name"`
Email string `json:"email"`
UserGuid string `json:"user_id"`
}
func NewTokenInfo(accessToken string) (info TokenInfo) {
tokenJson, err := DecodeAccessToken(accessToken)
if err != nil {
return TokenInfo{}
}
info = TokenInfo{}
err = json.Unmarshal(tokenJson, &info)
if err != nil {
return TokenInfo{}
}
return info
}
func DecodeAccessToken(accessToken string) (tokenJson []byte, err error) {
tokenParts := strings.Split(accessToken, " ")
if len(tokenParts) < 2 {
return
}
token := tokenParts[1]
encodedParts := strings.Split(token, ".")
if len(encodedParts) < 3 {
return
}
encodedTokenJson := encodedParts[1]
return base64Decode(encodedTokenJson)
}
func base64Decode(encodedData string) ([]byte, error) {
return base64.StdEncoding.DecodeString(restorePadding(encodedData))
}
func restorePadding(seg string) string {
switch len(seg) % 4 {
case 2:
seg = seg + "=="
case 3:
seg = seg + "="
}
return seg
}