actually do some OAuth

webserver/login_page.go

@@ -25,8 +25,8 @@ type PasswordAuthData struct {
 }
 
 type OAuthAuthData struct {
-	Username string
-	Password string
+	ResponseWriter *http.ResponseWriter
+	Request        *http.Request
 }
 
 type CustomizableLoginData struct {
@@ -62,7 +62,10 @@ func loginHandler(w http.ResponseWriter, r *http.Request) {
 				tmpl.Execute(w, LoginPageData{IsHiddenClassList: "", LoginData: LoginPageDataCustomizations})
 			}
 		} else {
-			auth_success := LoginPageDataCustomizations.AuthRequestFunction(AuthStyleOAuth, OAuthAuthData{})
+			auth_success := LoginPageDataCustomizations.AuthRequestFunction(AuthStyleOAuth, OAuthAuthData{
+				ResponseWriter: &w,
+				Request:        r,
+			})
 			if auth_success == false {
 				tmpl.Execute(w, LoginPageData{IsHiddenClassList: "", LoginData: LoginPageDataCustomizations})
 			}