Handle invalid access token

2 files changed, 20 insertions, 4 deletions

diff --git a/src/MainWindow.cc b/src/MainWindow.cc

index c2353a11..404baec5 100644
--- a/src/MainWindow.cc
+++ b/src/MainWindow.cc
@@ -131,6 +131,11 @@ MainWindow::MainWindow(QWidget *parent)
                 SIGNAL(registerSuccess(QString, QString, QString)),
                 this,
                 SLOT(showChatPage(QString, QString, QString)));
+        connect(client_.data(), &MatrixClient::invalidToken, this, [this]() {
+                chat_page_->deleteConfigs();
+                showLoginPage();
+                login_page_->loginError("Invalid token detected. Please try to login again.");
+        });
 
         QShortcut *quitShortcut = new QShortcut(QKeySequence::Quit, this);
         connect(quitShortcut, &QShortcut::activated, this, QApplication::quit);
diff --git a/src/MatrixClient.cc b/src/MatrixClient.cc

index 5593dbe6..96f8b941 100644
--- a/src/MatrixClient.cc
+++ b/src/MatrixClient.cc
@@ -309,13 +309,24 @@ MatrixClient::sync() noexcept
                 reply->deleteLater();
 
                 int status = reply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt();
+                auto data  = reply->readAll();
 
                 if (status == 0 || status >= 400) {
-                        qDebug() << reply->errorString();
-                        return;
-                }
+                        try {
+                                mtx::errors::Error res = nlohmann::json::parse(data);
 
-                auto data = reply->readAll();
+                                if (res.errcode == mtx::errors::ErrorCode::M_UNKNOWN_TOKEN) {
+                                        emit invalidToken();
+                                        return;
+                                }
+
+                                emit syncError(QString::fromStdString(res.error));
+
+                                return;
+                        } catch (const nlohmann::json::exception &e) {
+                                qWarning() << e.what();
+                        }
+                }
 
                 try {
                         mtx::responses::Sync response = nlohmann::json::parse(data);