wasm: fix crash when network reply is closed

We do not need to call QNetworkReply::close as that closes the
QIODevice that we do not use (or have)

Fixes: QTBUG-77210
Change-Id: I812bc324f49ae28b8c622cfa89f9690e012bf216
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
(cherry picked from commit 9a5a31268e1fc1c86796dcf7f9ab757c4a599a49)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

2 files changed, 22 insertions, 5 deletions

diff --git a/src/network/access/qnetworkreplywasmimpl.cpp b/src/network/access/qnetworkreplywasmimpl.cpp
index 2e0f865ccb..fee7f7a447 100644
--- a/src/network/access/qnetworkreplywasmimpl.cpp
+++ b/src/network/access/qnetworkreplywasmimpl.cpp
@@ -68,22 +68,37 @@ QByteArray QNetworkReplyWasmImpl::methodName() const
 
 void QNetworkReplyWasmImpl::close()
 {
+    Q_D(QNetworkReplyWasmImpl);
+
+    if (d->state != QNetworkReplyPrivate::Aborted &&
+        d->state != QNetworkReplyPrivate::Finished &&
+        d->state != QNetworkReplyPrivate::Idle) {
+            d->state = QNetworkReplyPrivate::Finished;
+            d->setCanceled();
+    }
+
     QNetworkReply::close();
-    setFinished(true);
-    emit finished();
 }
 
 void QNetworkReplyWasmImpl::abort()
 {
     Q_D(QNetworkReplyWasmImpl);
+
     if (d->state == QNetworkReplyPrivate::Finished || d->state == QNetworkReplyPrivate::Aborted)
         return;
 
     d->state = QNetworkReplyPrivate::Aborted;
-    d->m_fetch->userData = nullptr;
+    d->setCanceled();
+}
 
-    d->emitReplyError(QNetworkReply::OperationCanceledError, QStringLiteral("Operation canceled"));
-    close();
+void QNetworkReplyWasmImplPrivate::setCanceled()
+{
+    Q_Q(QNetworkReplyWasmImpl);
+    m_fetch->userData = nullptr;
+
+    emitReplyError(QNetworkReply::OperationCanceledError, QStringLiteral("Operation canceled"));
+    q->setFinished(true);
+    emit q->finished();
 }
 
 qint64 QNetworkReplyWasmImpl::bytesAvailable() const
@@ -236,6 +251,7 @@ void QNetworkReplyWasmImplPrivate::doSendRequest()
     attr.destinationPath = destinationPath.constData();
 
     m_fetch = emscripten_fetch(&attr, request.url().toString().toUtf8());
+    state = Working;
 }
 
 void QNetworkReplyWasmImplPrivate::emitReplyError(QNetworkReply::NetworkError errorCode, const QString &errorString)
diff --git a/src/network/access/qnetworkreplywasmimpl_p.h b/src/network/access/qnetworkreplywasmimpl_p.h
index ff933b49f8..d8c814621b 100644
--- a/src/network/access/qnetworkreplywasmimpl_p.h
+++ b/src/network/access/qnetworkreplywasmimpl_p.h
@@ -112,6 +112,7 @@ public:
 
     emscripten_fetch_t *m_fetch;
     void setReplyFinished();
+    void setCanceled();
 
     Q_DECLARE_PUBLIC(QNetworkReplyWasmImpl)
 };