Add a means to send a PUT request with an empty body

We have implemented the same functionality recently for POST, in this
patch implement it for PUT.

Task-number: QTBUG-108309
Change-Id: I34c41538054fec836d0d1d1dbb44fabab9bc0e9a
Reviewed-by: Juha Vuolle <juha.vuolle@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>

src/network/access/qnetworkaccessmanager.cpp

@@ -957,6 +957,23 @@ QNetworkReply *QNetworkAccessManager::put(const QNetworkRequest &request, const
     return reply;
 }
 
+/*!
+    \overload
+
+    \since 6.8
+
+    Sends the PUT request specified by \a request without a body and returns
+    a new QNetworkReply object.
+*/
+
+QNetworkReply *QNetworkAccessManager::put(const QNetworkRequest &request, std::nullptr_t nptr)
+{
+    Q_UNUSED(nptr);
+    QIODevice *dev = nullptr;
+
+    return d_func()->postProcess(createRequest(QNetworkAccessManager::PutOperation, request, dev));
+}
+
 /*!
     \since 4.6
 

src/network/access/qnetworkaccessmanager.h

@@ -87,6 +87,7 @@ public:
     QNetworkReply *post(const QNetworkRequest &request, std::nullptr_t nptr);
     QNetworkReply *put(const QNetworkRequest &request, QIODevice *data);
     QNetworkReply *put(const QNetworkRequest &request, const QByteArray &data);
+    QNetworkReply *put(const QNetworkRequest &request, std::nullptr_t nptr);
     QNetworkReply *deleteResource(const QNetworkRequest &request);
     QNetworkReply *sendCustomRequest(const QNetworkRequest &request, const QByteArray &verb, QIODevice *data = nullptr);
     QNetworkReply *sendCustomRequest(const QNetworkRequest &request, const QByteArray &verb, const QByteArray &data);

tests/auto/network/access/qnetworkreply/tst_qnetworkreply.cpp

@@ -263,6 +263,8 @@ private Q_SLOTS:
     void putToHttpSynchronous();
     void putToHttpMultipart_data();
     void putToHttpMultipart();
+    void putWithoutBody();
+    void putWithoutBody_data();
     void postToHttp_data();
     void postToHttp();
     void postToHttpSynchronous_data();
@@ -2699,6 +2701,48 @@ void tst_QNetworkReply::putToHttpSynchronous()
     QCOMPARE(uploadedData, data);
 }
 
+void tst_QNetworkReply::putWithoutBody_data()
+{
+    QTest::addColumn<bool>("client_data");
+
+    QTest::newRow("client_has_data") << true;
+    QTest::newRow("client_does_not_have_data") << false;
+}
+
+void tst_QNetworkReply::putWithoutBody()
+{
+    QFETCH(bool, client_data);
+
+    QBuffer buff;
+
+    if (client_data) {
+        buff.setData("Dummy data from client to server");
+        buff.open(QIODevice::ReadOnly);
+    }
+
+    QByteArray dataFromServerToClient = QByteArray("Some ridiculous dummy data");
+    QByteArray httpResponse = QByteArray("HTTP/1.0 200 OK\r\nContent-Length: ");
+    httpResponse += QByteArray::number(dataFromServerToClient.size());
+    httpResponse += "\r\n\r\n";
+    httpResponse += dataFromServerToClient;
+
+    MiniHttpServer server(httpResponse);
+    server.doClose = true;
+
+    QNetworkRequest request(QUrl("http://localhost:" + QString::number(server.serverPort())));
+    request.setHeader(QNetworkRequest::ContentTypeHeader, QVariant("text/plain"));
+
+    QNetworkReplyPtr reply;
+    if (client_data)
+        reply.reset(manager.put(request, &buff));
+    else
+        reply.reset(manager.put(request, nullptr));
+
+    QVERIFY2(waitForFinish(reply) == Success, msgWaitForFinished(reply));
+    QCOMPARE(server.foundContentLength, client_data);
+}
+
+
 void tst_QNetworkReply::postToHttp_data()
 {
     putToFile_data();