// NewMapClaims - Initializes a new map claims
func NewMapClaims() *MapClaims {
	return &MapClaims{MapClaims: jwtgo.MapClaims{}}
}

// Set Adds new arbitrary claim keys and values.
func (c *MapClaims) Set(key string, val interface{}) {
	if c == nil {
		return
	}
	c.MapClaims[key] = val
}

// Delete deletes a key named key.
func (c *MapClaims) Delete(key string) {
	if c == nil {
		return
	}

	m["accessKey"] = accessKey
	jwt := jwtgo.NewWithClaims(jwtgo.SigningMethodHS512, jwtgo.MapClaims(m))
	return jwt.SignedString([]byte(tokenSecret))
}

// ExtractClaims extracts JWT claims from a security token using a secret key
func ExtractClaims(token, secretKey string) (*jwt.MapClaims, error) {
	if token == "" || secretKey == "" {
		return nil, errors.New("invalid argument")
	}

func mustGetClaimsFromToken(r *http.Request) map[string]interface{} {
	claims, _ := getClaimsFromToken(getSessionToken(r))
	return claims
}

func getClaimsFromTokenWithSecret(token, secret string) (*xjwt.MapClaims, error) {
	// JWT token for x-amz-security-token is signed with admin
	// secret key, temporary credentials become invalid if
	// server admin credentials change. This is done to ensure