From 665aa4c5468c1167438657fcd7dc6da90fcfe6d4 Mon Sep 17 00:00:00 2001
From: Octol1ttle <l1ttleofficial@outlook.com>
Date: Thu, 29 Jan 2026 17:11:30 +0500
Subject: [PATCH] change(MSAStep): log server errors

Signed-off-by: Octol1ttle <l1ttleofficial@outlook.com>
---
 launcher/minecraft/auth/steps/MSAStep.cpp | 29 ++++++++++++++++++++++-
 1 file changed, 28 insertions(+), 1 deletion(-)

diff --git a/launcher/minecraft/auth/steps/MSAStep.cpp b/launcher/minecraft/auth/steps/MSAStep.cpp
index 2b8742ce8..9c6cab276 100644
--- a/launcher/minecraft/auth/steps/MSAStep.cpp
+++ b/launcher/minecraft/auth/steps/MSAStep.cpp
@@ -81,6 +81,33 @@ class CustomOAuthOobReplyHandler : public QOAuthOobReplyHandler {
         disconnect(APPLICATION, &Application::oauthReplyRecieved, this, &QOAuthOobReplyHandler::callbackReceived);
     }
     QString callback() const override { return BuildConfig.LAUNCHER_APP_BINARY_NAME + "://oauth/microsoft"; }
+
+   protected:
+    void networkReplyFinished(QNetworkReply* reply) override
+    {
+        if (reply->error() != QNetworkReply::NoError) {
+            qWarning() << "OAuth2 request failed:" << reply->readAll();
+        }
+
+        QOAuthOobReplyHandler::networkReplyFinished(reply);
+    }
+};
+
+class LoggingOAuthHttpServerReplyHandler final : public QOAuthHttpServerReplyHandler {
+    Q_OBJECT
+
+   public:
+    explicit LoggingOAuthHttpServerReplyHandler(QObject* parent = nullptr) : QOAuthHttpServerReplyHandler(parent) {}
+
+   protected:
+    void networkReplyFinished(QNetworkReply* reply) override
+    {
+        if (reply->error() != QNetworkReply::NoError) {
+            qWarning() << "OAuth2 request failed:" << reply->readAll();
+        }
+
+        QOAuthHttpServerReplyHandler::networkReplyFinished(reply);
+    }
 };
 
 MSAStep::MSAStep(AccountData* data, bool silent) : AuthStep(data), m_silent(silent)
@@ -89,7 +116,7 @@ MSAStep::MSAStep(AccountData* data, bool silent) : AuthStep(data), m_silent(sile
     if (QCoreApplication::applicationFilePath().startsWith("/tmp/.mount_") || APPLICATION->isPortable() || !isSchemeHandlerRegistered())
 
     {
-        auto replyHandler = new QOAuthHttpServerReplyHandler(this);
+        auto replyHandler = new LoggingOAuthHttpServerReplyHandler(this);
         replyHandler->setCallbackText(QString(R"XXX(
     <noscript>
       <meta http-equiv="Refresh" content="0; URL=%1" />