honor expiry time on login info page

login/handler.go

@@ -229,8 +229,12 @@ func (h *Handler) getToken(r *http.Request) (userInfo model.UserInfo, valid bool
 		return model.UserInfo{}, false
 	}
 
-	u, v := token.Claims.(*model.UserInfo)
-	return *u, v
+	u, ok := token.Claims.(*model.UserInfo)
+	if !ok {
+		return model.UserInfo{}, false
+	}
+
+	return *u, u.Valid() == nil
 }
 
 func (h *Handler) respondError(w http.ResponseWriter, r *http.Request) {

login/handler_test.go

@@ -307,7 +307,7 @@ func TestHandler_LoginError(t *testing.T) {
 
 func TestHandler_getToken_Valid(t *testing.T) {
 	h := testHandler()
-	input := model.UserInfo{Sub: "marvin"}
+	input := model.UserInfo{Sub: "marvin", Expiry: time.Now().Add(time.Second).Unix()}
 	token, err := h.createToken(input)
 	assert.NoError(t, err)
 	r := &http.Request{

model/user_info.go

@@ -1,5 +1,10 @@
 package model
 
+import (
+	"errors"
+	"time"
+)
+
 type UserInfo struct {
 	Sub     string `json:"sub"`
 	Picture string `json:"picture,omitempty"`
@@ -12,5 +17,8 @@ type UserInfo struct {
 // this interface implementation
 // lets us use the user info as Claim for jwt-go
 func (u UserInfo) Valid() error {
+	if u.Expiry < time.Now().Unix() {
+		return errors.New("token expired")
+	}
 	return nil
 }