fixed dereferencing of FetchedRedirectURI

handlers/google_auth.go

@@ -65,7 +65,7 @@ func init() {
 		},
 		Endpoint: google.Endpoint,
 	}
-
+	log.Print("Redirect URL set to: ", googleOauthConfig.RedirectURL)
 	if googleOauthConfig.ClientID == "" {
 		log.Fatal("GOOGLE_CLIENT_ID is not set in environment variables")
 	}
@@ -325,8 +325,8 @@ func GoogleCallback(w http.ResponseWriter, r *http.Request) {
 
 	helper.LogInfo("Copy this access token: " + accessToken)
 
-	RedirectURI := *FetchedRedirectURI
-	if RedirectURI != "" {
+	if FetchedRedirectURI != nil && *FetchedRedirectURI != "" {
+		RedirectURI := *FetchedRedirectURI
 		log.Print("RedirectURI from query param: ", RedirectURI)
 		if !IsAllowedRedirectURI(RedirectURI) {
 			helper.RespondWithError(w, http.StatusUnauthorized, "Unauthorized RedirectURI")
@@ -360,6 +360,7 @@ func validateState(w http.ResponseWriter, r *http.Request) bool {
 
 func FetchGoogleUserInfo(w http.ResponseWriter, r *http.Request) (models.UserGoogleInfo, error) {
 	code := r.URL.Query().Get("code")
+	log.Print("Authorization code received: ", code)
 	token, err := googleOauthConfig.Exchange(context.Background(), code)
 	if err != nil {
 		helper.LogError(err, "Error exchanging token")