262 lines
8.6 KiB
C++
262 lines
8.6 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2017 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the QtBluetooth module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 3 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL3 included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 3 requirements
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** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 2.0 or (at your option) the GNU General
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** Public license version 3 or any later version approved by the KDE Free
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** Qt Foundation. The licenses are as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-2.0.html and
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** https://www.gnu.org/licenses/gpl-3.0.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "qbluetoothserver.h"
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#include "qbluetoothserver_p.h"
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#include "qbluetoothsocket.h"
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#include "qbluetoothlocaldevice.h"
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#include "qbluetoothsocket_winrt_p.h"
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#include "qbluetoothutils_winrt_p.h"
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#include <QtCore/QLoggingCategory>
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#include <QtCore/private/qfunctions_winrt_p.h>
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#include <windows.networking.h>
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#include <windows.networking.connectivity.h>
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#include <windows.networking.sockets.h>
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using namespace Microsoft::WRL;
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using namespace Microsoft::WRL::Wrappers;
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using namespace ABI::Windows::Devices;
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using namespace ABI::Windows::Devices::Enumeration;
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using namespace ABI::Windows::Foundation;
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using namespace ABI::Windows::Networking;
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using namespace ABI::Windows::Networking::Sockets;
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using namespace ABI::Windows::Networking::Connectivity;
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typedef ITypedEventHandler<StreamSocketListener *, StreamSocketListenerConnectionReceivedEventArgs *> ClientConnectedHandler;
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QT_BEGIN_NAMESPACE
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Q_DECLARE_LOGGING_CATEGORY(QT_BT_WINDOWS)
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QHash<QBluetoothServerPrivate *, int> __fakeServerPorts;
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QBluetoothServerPrivate::QBluetoothServerPrivate(QBluetoothServiceInfo::Protocol sType,
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QBluetoothServer *parent)
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: serverType(sType), q_ptr(parent)
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{
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mainThreadCoInit(this);
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}
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QBluetoothServerPrivate::~QBluetoothServerPrivate()
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{
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deactivateActiveListening();
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__fakeServerPorts.remove(this);
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// If we do not reset that pointer, socketListener will go out of scope after CoUninitialize was
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// called, which will lead to a crash.
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socketListener = nullptr;
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mainThreadCoUninit(this);
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}
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bool QBluetoothServerPrivate::isListening() const
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{
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return __fakeServerPorts.contains(const_cast<QBluetoothServerPrivate *>(this));
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}
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bool QBluetoothServerPrivate::initiateActiveListening(const QString &serviceName)
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{
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HStringReference serviceNameRef(reinterpret_cast<LPCWSTR>(serviceName.utf16()));
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ComPtr<IAsyncAction> bindAction;
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HRESULT hr = socketListener->BindServiceNameAsync(serviceNameRef.Get(), &bindAction);
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Q_ASSERT_SUCCEEDED(hr);
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hr = QWinRTFunctions::await(bindAction);
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Q_ASSERT_SUCCEEDED(hr);
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return true;
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}
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bool QBluetoothServerPrivate::deactivateActiveListening()
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{
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if (!isListening())
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return true;
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HRESULT hr;
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hr = socketListener->remove_ConnectionReceived(connectionToken);
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Q_ASSERT_SUCCEEDED(hr);
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return true;
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}
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HRESULT QBluetoothServerPrivate::handleClientConnection(IStreamSocketListener *listener,
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IStreamSocketListenerConnectionReceivedEventArgs *args)
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{
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Q_Q(QBluetoothServer);
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if (!socketListener || socketListener.Get() != listener) {
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qCDebug(QT_BT_WINDOWS) << "Accepting connection from wrong listener. We should not be here.";
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Q_UNREACHABLE();
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return S_OK;
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}
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HRESULT hr;
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ComPtr<IStreamSocket> socket;
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hr = args->get_Socket(&socket);
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Q_ASSERT_SUCCEEDED(hr);
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QMutexLocker locker(&pendingConnectionsMutex);
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if (pendingConnections.size() < maxPendingConnections) {
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qCDebug(QT_BT_WINDOWS) << "Accepting connection";
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pendingConnections.append(socket);
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locker.unlock();
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q->newConnection();
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} else {
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qCDebug(QT_BT_WINDOWS) << "Refusing connection";
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}
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return S_OK;
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}
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void QBluetoothServer::close()
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{
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Q_D(QBluetoothServer);
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d->deactivateActiveListening();
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__fakeServerPorts.remove(d);
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}
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bool QBluetoothServer::listen(const QBluetoothAddress &address, quint16 port)
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{
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Q_UNUSED(address);
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Q_D(QBluetoothServer);
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if (serverType() != QBluetoothServiceInfo::RfcommProtocol) {
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d->m_lastError = UnsupportedProtocolError;
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emit errorOccurred(d->m_lastError);
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return false;
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}
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if (isListening())
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return false;
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HRESULT hr = RoActivateInstance(HString::MakeReference(RuntimeClass_Windows_Networking_Sockets_StreamSocketListener).Get(),
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&d->socketListener);
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Q_ASSERT_SUCCEEDED(hr);
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hr = d->socketListener->add_ConnectionReceived(Callback<ClientConnectedHandler>(d, &QBluetoothServerPrivate::handleClientConnection).Get(),
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&d->connectionToken);
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Q_ASSERT_SUCCEEDED(hr);
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//We can not register an actual Rfcomm port, because the platform does not allow it
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//but we need a way to associate a server with a service
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if (port == 0) { //Try to assign a non taken port id
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for (int i = 1; ; i++){
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if (__fakeServerPorts.key(i) == 0) {
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port = i;
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break;
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}
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}
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}
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if (__fakeServerPorts.key(port) == 0) {
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__fakeServerPorts[d] = port;
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qCDebug(QT_BT_WINDOWS) << "Port" << port << "registered";
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} else {
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qCWarning(QT_BT_WINDOWS) << "server with port" << port << "already registered or port invalid";
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d->m_lastError = ServiceAlreadyRegisteredError;
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emit errorOccurred(d->m_lastError);
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return false;
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}
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return true;
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}
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void QBluetoothServer::setMaxPendingConnections(int numConnections)
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{
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Q_D(QBluetoothServer);
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QMutexLocker locker(&d->pendingConnectionsMutex);
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if (d->pendingConnections.size() > numConnections) {
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qCWarning(QT_BT_WINDOWS) << "There are currently more than" << numConnections << "connections"
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<< "pending. Number of maximum pending connections was not changed.";
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return;
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}
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d->maxPendingConnections = numConnections;
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}
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bool QBluetoothServer::hasPendingConnections() const
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{
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Q_D(const QBluetoothServer);
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QMutexLocker locker(&d->pendingConnectionsMutex);
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return !d->pendingConnections.isEmpty();
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}
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QBluetoothSocket *QBluetoothServer::nextPendingConnection()
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{
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Q_D(QBluetoothServer);
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if (d->pendingConnections.isEmpty())
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return nullptr;
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ComPtr<IStreamSocket> socket = d->pendingConnections.takeFirst();
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QBluetoothSocket *newSocket = new QBluetoothSocket();
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bool success = newSocket->d_ptr->setSocketDescriptor(socket, d->serverType);
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if (!success) {
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delete newSocket;
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newSocket = nullptr;
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}
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return newSocket;
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}
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QBluetoothAddress QBluetoothServer::serverAddress() const
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{
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QList<QBluetoothHostInfo> hosts = QBluetoothLocalDevice::allDevices();
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if (hosts.isEmpty())
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return QBluetoothAddress();
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else
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return hosts.at(0).address();
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}
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quint16 QBluetoothServer::serverPort() const
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{
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//We return the fake port
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Q_D(const QBluetoothServer);
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return __fakeServerPorts.value((QBluetoothServerPrivate*)d, 0);
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}
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void QBluetoothServer::setSecurityFlags(QBluetooth::SecurityFlags security)
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{
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Q_UNUSED(security);
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}
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QBluetooth::SecurityFlags QBluetoothServer::securityFlags() const
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{
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return QBluetooth::Security::NoSecurity;
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}
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QT_END_NAMESPACE
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