MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);
// get ipv4 address list
QList<QHostAddress> ipAddressesList = QNetworkInterface::allAddresses();
for(int i = 0; i < ipAddressesList.size(); ++i)
{
QTcpServer testServer;
if( ipAddressesList[i].toIPv4Address() && testServer.listen(ipAddressesList[i], 9876) ) {
testServer.close();
ui->comboBox->addItem(ipAddressesList[i].toString());
}
}
ui->lineEditHostname->setText(QHostInfo::localHostName());
IPv4 = ui->comboBox->currentText();
serverPort = ui->spinBoxPort->value();
serverState = ServerStop;
runningDay = runningSec = runningMin = runningHour = 0;
timer = new QTimer(this);
timer->start(1000); // msec
db = NULL;
server = NULL;
connect(timer, SIGNAL(timeout()),
this, SLOT(runningTimeChange()));
}
int ServerManager::createListeningSocket(const QHostAddress &address, quint16 port)
{
int sd = 0;
QTcpServer server;
if (!server.listen(address, port)) {
qCritical("listen failed");
return sd;
}
sd = ::fcntl(server.socketDescriptor(), F_DUPFD, 0);
#if defined(FD_CLOEXEC)
::fcntl(sd, F_SETFD, 0);
#endif
server.close();
return sd;
}
void ServerPool::close(void)
{
QTcpServer *server;
while (!m_tcpServers.isEmpty())
{
server = m_tcpServers.takeLast();
server->disconnect();
server->close();
delete server;
}
QUdpSocket *socket;
while (!m_udpSockets.isEmpty())
{
socket = m_udpSockets.takeLast();
socket->disconnect();
socket->close();
delete socket;
}
}
/*!
Listen a port for connections on a socket.
This function must be called in a tfmanager process.
*/
int TApplicationServerBase::nativeListen(const QHostAddress &address, quint16 port, OpenFlag flag)
{
int sd = 0;
QTcpServer server;
if (!server.listen(address, port)) {
tSystemError("Listen failed port:%d", port);
return sd;
}
sd = duplicateSocket(server.socketDescriptor()); // duplicate
if (flag == CloseOnExec) {
::fcntl(sd, F_SETFD, ::fcntl(sd, F_GETFD) | FD_CLOEXEC);
} else {
::fcntl(sd, F_SETFD, 0); // clear
}
::fcntl(sd, F_SETFL, ::fcntl(sd, F_GETFL) | O_NONBLOCK); // non-block
server.close();
return sd;
}
void ServerPool::close(void)
{
QTcpServer *server;
while (!m_tcpServers.isEmpty())
{
server = m_tcpServers.takeLast();
server->disconnect();
server->close();
server->deleteLater();
}
QUdpSocket *socket;
while (!m_udpSockets.isEmpty())
{
socket = m_udpSockets.takeLast();
socket->disconnect();
socket->close();
socket->deleteLater();
}
m_listening = false;
}
static PyObject *meth_QTcpServer_close(PyObject *sipSelf, PyObject *sipArgs)
{
PyObject *sipParseErr = NULL;
{
QTcpServer *sipCpp;
if (sipParseArgs(&sipParseErr, sipArgs, "B", &sipSelf, sipType_QTcpServer, &sipCpp))
{
Py_BEGIN_ALLOW_THREADS
sipCpp->close();
Py_END_ALLOW_THREADS
Py_INCREF(Py_None);
return Py_None;
}
}
/* Raise an exception if the arguments couldn't be parsed. */
sipNoMethod(sipParseErr, sipName_QTcpServer, sipName_close, doc_QTcpServer_close);
return NULL;
}
QTcpServer* DccCommon::createServerSocketAndListen( QObject* parent, QString* failedReason, int minPort, int maxPort )
{
QTcpServer* socket = new QTcpServer( parent );
if ( minPort > 0 && maxPort >= minPort ) // ports are configured manually
{
// set port
bool found = false; // whether succeeded to set port
for ( int port = minPort; port <= maxPort ; ++port )
{
bool success = socket->listen( QHostAddress::Any, port );
if ( ( found = ( success && socket->isListening() ) ) )
break;
socket->close();
}
if ( !found )
{
if ( failedReason )
*failedReason = i18n( "No vacant port" );
delete socket;
return 0;
}
}
else
{
// Let the operating system choose a port
if ( !socket->listen() )
{
if ( failedReason )
*failedReason = i18n( "Could not open a socket" );
delete socket;
return 0;
}
}
return socket;
}
void tst_QSocketNotifier::unexpectedDisconnection()
{
/*
Given two sockets and two QSocketNotifiers registered on each
their socket. If both sockets receive data, and the first slot
invoked by one of the socket notifiers empties both sockets, the
other notifier will also emit activated(). This results in
unexpected disconnection in QAbstractSocket.
The use case is that somebody calls one of the
waitFor... functions in a QSocketNotifier activated slot, and
the waitFor... functions do local selects that can empty both
stdin and stderr while waiting for fex bytes to be written.
*/
QTcpServer server;
QVERIFY(server.listen(QHostAddress::LocalHost, 0));
NATIVESOCKETENGINE readEnd1;
readEnd1.initialize(QAbstractSocket::TcpSocket);
readEnd1.connectToHost(server.serverAddress(), server.serverPort());
QVERIFY(readEnd1.waitForWrite());
QVERIFY(readEnd1.state() == QAbstractSocket::ConnectedState);
QVERIFY(server.waitForNewConnection());
QTcpSocket *writeEnd1 = server.nextPendingConnection();
QVERIFY(writeEnd1 != 0);
NATIVESOCKETENGINE readEnd2;
readEnd2.initialize(QAbstractSocket::TcpSocket);
readEnd2.connectToHost(server.serverAddress(), server.serverPort());
QVERIFY(readEnd2.waitForWrite());
QVERIFY(readEnd2.state() == QAbstractSocket::ConnectedState);
QVERIFY(server.waitForNewConnection());
QTcpSocket *writeEnd2 = server.nextPendingConnection();
QVERIFY(writeEnd2 != 0);
writeEnd1->write("1", 1);
writeEnd2->write("2", 1);
writeEnd1->waitForBytesWritten();
writeEnd2->waitForBytesWritten();
writeEnd1->flush();
writeEnd2->flush();
UnexpectedDisconnectTester tester(&readEnd1, &readEnd2);
QTimer timer;
timer.setSingleShot(true);
timer.start(30000);
do {
// we have to wait until sequence value changes
// as any event can make us jump out processing
QCoreApplication::processEvents(QEventLoop::WaitForMoreEvents);
QVERIFY(timer.isActive()); //escape if test would hang
} while(tester.sequence <= 0);
QVERIFY(readEnd1.state() == QAbstractSocket::ConnectedState);
QVERIFY(readEnd2.state() == QAbstractSocket::ConnectedState);
QCOMPARE(tester.sequence, 2);
readEnd1.close();
readEnd2.close();
writeEnd1->close();
writeEnd2->close();
server.close();
}
//Thread run
void ViewerHandler::run() {
WDEF;
pSocket = 0;
int i;
//Request and voiceClient creation and initialization (using ViewerHandler::requestQueue)
//TalkingThread tt(this->request);
this->tt = new TalkingThread(*this);
this->connection = new Connection(*this, *(this->tt));
this->request = new Request(*this, requestQueue, *connection);
//VoiceClient deals with messages originated in the client
VoiceClient voiceClient(requestQueue);
voiceClient.start();
WDEBUG1("ViewerHandler: whisper started");
//Server listening to localhost:44125
QTcpServer server;
server.listen(QHostAddress::LocalHost, (quint16)44125);
WDEBUG3("ViewerHandler: waiting for connection to %s:%d", "127.0.0.1", 44125);
//Timeout
if(!server.waitForNewConnection(10000))
WTHROW1("no connection found");
// Getting ViewerHandler::pSocket
pSocket = server.nextPendingConnection();
if (!pSocket)
WTHROW1("ViewerHandler: invalid socket - terminating");
WDEBUG1("ViewerHandler: entering main loop");
initialized();
// Main request processing loop
for(;;) {
if (pSocket->bytesAvailable() > 0 || pSocket->waitForReadyRead(10000)) {
WDEBUG1("ViewerHandler: reading data from buffer");
//Reads the whole buffer
QString qsData = pSocket->readAll();
// TODO: it might be that this is not the only request in the string
// -> the request should be handled properly
if(qsData.contains("Connector.InitiateShutdown.1")) {
WDEBUG1("ViewerHandler: Connector.InitiateShutdown.1 received - doing nothing");
//break;
}
//Splits the buffer in several requests
QStringList& rlRequests = qsData.split("\n\n\n", QString::SkipEmptyParts);
//Counts number of requests
int count = rlRequests.size();
WDEBUG2("ViewerHandler: %d request(s) received", count);
//For each request
for (i=0; i<count; i++) {
WDEBUG3("ViewerHandler: Sending request %d to be handled: \n%s\n", i, rlRequests[i].toAscii().data());
//handles it
if(this->request->handle(rlRequests[i])) {
WDEBUG1("ViewerHandler: error while handling request - next request");
continue;
}
}
//If there're no requests received
} else {
//Checks if socket is still valid and disconnect if not
WDEBUG2("Socket state: %d", (int) pSocket->state());
if(pSocket->state() != QAbstractSocket::ConnectedState) {
WDEBUG1("Socket is no more connected - closing program");
WWRITE1 ("Socket no more connected - shutting down");
break;
}
}
}
WEND:
WDEBUG1("ViewerHandler: sending quit to the main application");
qApp->quit();
while (!is_shutdown()) {
//wait to receive shutdown from main thread
WDEBUG1("ViewerHandler: waiting to receive shutdown");
QThread::msleep(1000);
//vhSleep(1000);
}
WDEBUG1("ViewerHandler: shutdown received");
WDEBUG1("ViewerHandler: stopping VoiceClient...");
voiceClient.end();
voiceClient.wait();
WDEBUG1("Viewer Handler: VoiceClient has terminated");
//WDEBUG1("Stopping talkingThread...");
//if(this->tt->isRunning())this->tt->quit();
WDEBUG1("ViewerHandler: stopping TalkingThread...");
//voiceClient.end();
if(tt != 0) {
tt->end();
tt->wait();
delete tt;
tt=0;
WDEBUG1("Viewer Handler: TalkingThread has terminated");
}
WDEBUG1("ViewerHandler: finishing...");
if (pSocket){
pSocket->close();
WDEBUG2("ViewerHandler: pSocket status: %s", pSocket->state() == QAbstractSocket::UnconnectedState ? "Unconnected" : "Still Up");
pSocket = 0;
}
server.close();
WDEBUG2("ViewerHandler: server status: %s", server.isListening() ? "Listening" : "Shutdown");
return;
}
//----------------------------------------------------------------------------------
void tst_QTcpServer::crashTests()
{
QTcpServer server;
server.close();
QVERIFY(server.listen());
}
int main(int argc, char *argv[])
{
QCoreApplication a(argc, argv);
for(int i = 0 ; i < argc; i++){
qDebug() << argv[i] << endl;
}
if(argc >= 4)
{
//Getting first argument for application
QString arg = argv[1];
//Sending mode
if(arg == "send")
{
QTcpSocket *tcpSocket = new QTcpSocket(&a);
QString port = argv[3];
tcpSocket->connectToHost(QHostAddress(argv[2]), port.toInt());
if(!tcpSocket->waitForConnected(10*1000)){
qDebug() << "Connection cant be established to host: " << argv[2] << ", at port: " << port << endl;
}else{
//Sending mode = file
QString type(argv[4]);
if(type == "file")
{
QFile file(argv[5]);
if(!file.open(QFile::ReadOnly))
{
qDebug() << "Cannot open file" << endl;
}else
{
qDebug() << "File size in bytes: " << file.size() << endl;
int counter = 0;
//Divide file into chunks of 300KB
int chunkSize = 3 * 100000;
while(counter < file.size()){
if(!file.seek(counter)){
qDebug() << "Cant seek the file to : " << counter << endl;
}else{
QByteArray buffer = file.read(chunkSize);
if(!buffer.isEmpty()){
int bytesWritten = tcpSocket->write(buffer);
counter += bytesWritten;
if(!tcpSocket->waitForBytesWritten(10*1000))
{
qDebug() << "Error no bytes written" << tcpSocket->errorString() << endl;
}else
{
qDebug() << "Bytes for writting: " << buffer.size() << ", " << bytesWritten << " bytes written. " << endl;
}
}else{
qDebug() << "0 bytes read from file, error: " << file.errorString() << endl;
break;
}
}
}
}
//Sending mode = string
}else if(type == "string")
{
QByteArray data = argv[5];
int bytesWritten = tcpSocket->write(data);
if(!tcpSocket->waitForBytesWritten(10000))
{
qDebug() << "Error no bytes written" << tcpSocket->errorString() << endl;
}else
{
qDebug() << bytesWritten << " bytes written. " << endl;
}
}else{
qDebug() << "Unknown sending format " << endl;
}
}
tcpSocket->close();
delete tcpSocket;
//Receiving mode
}else if(arg == "receive")
{
QTcpServer *tcpServer = new QTcpServer(&a);
QString port = argv[3];
if(!tcpServer->listen(QHostAddress(QString(argv[2])),port.toInt())){
qDebug() << "Error, could not start listening, " << tcpServer->serverError() << endl;
}else{
QString fileName;
QString destinationPath;
//Getting name and path for the new file from user
bool tryAgain = true;
while(tryAgain){
qDebug() << "Enter filename for the new file (ex: picture.png) :";
QTextStream s(stdin);
fileName = s.readLine();
qDebug() << "Enter destination path: ";
QTextStream d(stdin);
destinationPath = d.readLine();
if (!fileName.isEmpty() && !destinationPath.isEmpty())
{
qDebug() << "The destination string: " << destinationPath + fileName;
tryAgain = false;
}else{
qDebug() << "You didnt enter filename, try again" << endl;
}
}
bool working = true;
while(working){
if(tcpServer->waitForNewConnection(10*1000)){
QTcpSocket *sock = tcpServer->nextPendingConnection();
sock->waitForReadyRead(10*1000);
QByteArray receivedData;
QFile file_handle(destinationPath + fileName);
//While there is bytes available for receiving, receive them and write chunks of min 300KB to file
while(sock->bytesAvailable()){
qDebug() << sock->bytesAvailable() << " bytes available for writting" << endl;
receivedData.append(sock->readAll());
if(receivedData.size() > 3 * 100000){
if(!file_handle.isOpen()){
if(!file_handle.open(QFile::WriteOnly | QFile::Append | QFile::Text)){
qDebug() << "Could not open file for writing!" << endl;
}else{
file_handle.write(receivedData);
file_handle.flush();
file_handle.waitForBytesWritten(10*1000);
qDebug() << "Written " << receivedData.size() << " to file. In KB = " << receivedData.size() / 1000 << endl;
receivedData.clear();
}
}else{
file_handle.write(receivedData);
file_handle.flush();
file_handle.waitForBytesWritten(10*1000);
qDebug() << "Written " << receivedData.size() << " to file. In KB = " << receivedData.size() / 1000 << endl;
receivedData.clear();
}
}
sock->waitForReadyRead(10*1000);
}
file_handle.close();
//In case there is still data in buffer, but data is smaller than 300KB than append that remaining data to file also
if(receivedData.size() != 0){
qDebug() << "Preparing to write remaining chunks of data" << endl;
if(!file_handle.open(QFile::WriteOnly)){
qDebug() << "Could not open file for writing!" << endl;
}else{
file_handle.write(receivedData);
file_handle.flush();
file_handle.waitForBytesWritten(10*1000);
qDebug() << "Written " << receivedData.size() << " to file. In MB = " << receivedData.size() / 1000000 << endl;
receivedData.clear();
file_handle.close();
}
}
sock->close();
delete sock;
// file_thread->deleteLater();
qDebug() << "Should i wait for other request? (y/n) default = yes" ;
char answer;
cin >> answer;
if(answer == 'n'){
working = false;
tcpServer->close();
delete tcpServer;
}
}else{
qDebug() << "No incoming connection" << endl;
qDebug() << "Should i check for another request? (Yes / No)" ;
char answer;
cin >> answer;
if(answer == 'n'){
working = false;
tcpServer->close();
delete tcpServer;
}
}
}
