add user scripting with lua

oauth.go

@@ -177,7 +177,7 @@ func (s *OAuthStore) CallbackHandler() http.Handler {
 			http.Error(w, "Failed to exchange token", http.StatusInternalServerError)
 			return
 		}
-		userID, err := getUserInfo(s.config.OAuthProvider.Kind, tok.AccessToken)
+		userID, err := getUserInfo(s.config.OAuthProvider.Kind, tok.AccessToken, s.config)
 		if err != nil {
 			http.Error(w, "Failed to get info", http.StatusInternalServerError)
 			return
@@ -210,7 +210,7 @@ func (s *OAuthStore) CallbackHandler() http.Handler {
 	})
 }
 
-func getUserInfo(providerKind, token string) (string, error) {
+func getUserInfo(providerKind, token string, c *Config) (string, error) {
 	switch providerKind {
 	case "google":
 		type UserInfo struct {
@@ -249,6 +249,6 @@ func getUserInfo(providerKind, token string) (string, error) {
 		}
 		return userInfo.Login, nil
 	default:
-		panic("unimplemented")
+		return RunScript(c.OAuthProvider.Script, token)
 	}
 }