3 files changed, 56 insertions, 0 deletions
diff --git a/launcher/net/NetUtils.h b/launcher/net/NetUtils.h
new file mode 100644
index 00000000..fa3bd8c0
--- /dev/null
+++ b/launcher/net/NetUtils.h
@@ -0,0 +1,44 @@
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ * PolyMC - Minecraft Launcher
+ * Copyright (c) 2022 Sefa Eyeoglu <contact@scrumplex.net>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <QNetworkReply>
+#include <QSet>
+
+namespace Net {
+    inline bool isApplicationError(QNetworkReply::NetworkError x) {
+        // Mainly taken from https://github.com/qt/qtbase/blob/dev/src/network/access/qhttpthreaddelegate.cpp
+        static QSet<QNetworkReply::NetworkError> errors = {
+            QNetworkReply::ProtocolInvalidOperationError,
+            QNetworkReply::AuthenticationRequiredError,
+            QNetworkReply::ContentAccessDenied,
+            QNetworkReply::ContentNotFoundError,
+            QNetworkReply::ContentOperationNotPermittedError,
+            QNetworkReply::ProxyAuthenticationRequiredError,
+            QNetworkReply::ContentConflictError,
+            QNetworkReply::ContentGoneError,
+            QNetworkReply::InternalServerError,
+            QNetworkReply::OperationNotImplementedError,
+            QNetworkReply::ServiceUnavailableError,
+            QNetworkReply::UnknownServerError,
+            QNetworkReply::UnknownContentError
+        };
+        return errors.contains(x);
+    }
+}  // namespace Net
diff --git a/launcher/net/Upload.cpp b/launcher/net/Upload.cpp
index 12dd1e78..cfda4b4e 100644
--- a/launcher/net/Upload.cpp
+++ b/launcher/net/Upload.cpp
@@ -43,6 +43,16 @@
 
 namespace Net {
 
+    bool Upload::abort()
+    {
+        if (m_reply) {
+            m_reply->abort();
+        } else {
+            m_state = State::AbortedByUser;
+        }
+        return true;
+    }
+
     void Upload::downloadProgress(qint64 bytesReceived, qint64 bytesTotal) {
         setProgress(bytesReceived, bytesTotal);
     }
diff --git a/launcher/net/Upload.h b/launcher/net/Upload.h
index 56687a31..7c194bbc 100644
--- a/launcher/net/Upload.h
+++ b/launcher/net/Upload.h
@@ -46,6 +46,8 @@ namespace Net {
 
     public:
         static Upload::Ptr makeByteArray(QUrl url, QByteArray *output, QByteArray m_post_data);
+        auto abort() -> bool override;
+        auto canAbort() const -> bool override { return true; };
 
     protected slots:
         void downloadProgress(qint64 bytesReceived, qint64 bytesTotal) override;