DecodeJWT

Marko Tikvić
1 parent 0dd8dda340
Showing 1 changed file with 26 additions and 0 deletions Show diff stats
auth.go
@@ -188,6 +188,32 @@ func GetTokenClaims(req *http.Request) (*TokenClaims, error) {
 	return claims, nil
 }
  
+func DecodeJWT(secret, token string) (*TokenClaims, error) {
+	secretfunc := func(*jwt.Token) (interface{}, error) {
+		return []byte(secret), nil
+	}
+
+	tok, err := jwt.ParseWithClaims(token, &TokenClaims{}, secretfunc)
+	if err != nil {
+		if validation, ok := err.(*jwt.ValidationError); ok {
+			// don't return error if token is expired
+			if !(validation.Errors&jwt.ValidationErrorExpired != 0) {
+				return nil, err
+			}
+		} else {
+			return nil, err
+		}
+	}
+
+	// type assertion
+	claims, ok := tok.Claims.(*TokenClaims)
+	if !ok {
+		return &TokenClaims{}, errors.New("token is not valid")
+	}
+
+	return claims, nil
+}
+
 // randomSalt returns a string of 32 random characters.
 func randomSalt() (s string, err error) {
 	const saltSize = 32
...	...	@@ -188,6 +188,32 @@ func GetTokenClaims(req http.Request) (TokenClaims, error) {
188	188	return claims, nil
189	189	}
190	190
	191	+func DecodeJWT(secret, token string) (*TokenClaims, error) {
	192	+ secretfunc := func(*jwt.Token) (interface{}, error) {
	193	+ return []byte(secret), nil
	194	+ }
	195	+
	196	+ tok, err := jwt.ParseWithClaims(token, &TokenClaims{}, secretfunc)
	197	+ if err != nil {
	198	+ if validation, ok := err.(*jwt.ValidationError); ok {
	199	+ // don't return error if token is expired
	200	+ if !(validation.Errors&jwt.ValidationErrorExpired != 0) {
	201	+ return nil, err
	202	+ }
	203	+ } else {
	204	+ return nil, err
	205	+ }
	206	+ }
	207	+
	208	+ // type assertion
	209	+ claims, ok := tok.Claims.(*TokenClaims)
	210	+ if !ok {
	211	+ return &TokenClaims{}, errors.New("token is not valid")
	212	+ }
	213	+
	214	+ return claims, nil
	215	+}
	216	+
191	217	// randomSalt returns a string of 32 random characters.
192	218	func randomSalt() (s string, err error) {
193	219	const saltSize = 32
...	...