void Widget::tcpProcessPendingDatagrams()
{
// On détermine quel client envoie le message (recherche du QTcpSocket du client)
QTcpSocket *socket = qobject_cast<QTcpSocket *>(sender());
if (socket == 0) // Si par hasard on n'a pas trouvé le client à l'origine du signal, on arrête la méthode
return;
unsigned nTries = 0;
// Acquire data
while(socket->state()==QAbstractSocket::ConnectedState && nTries<3) // Exit if disconnected, too much retries, malformed HTTP request, or after all requests are processed
{
// TODO: Give up after three tries reading the same message
tcpReceivedDatas->append(socket->readAll());
nTries++;
if (!tcpReceivedDatas->startsWith("POST") && !tcpReceivedDatas->startsWith("GET")) // Not HTTP, clear the buffer
{
logMessage("TCP: Received non-HTTP request");
tcpReceivedDatas->clear();
socket->close();
return;
}
else if (tcpReceivedDatas->contains("Content-Length:")) // POST or GET request, wait for Content-Length header
{
QByteArray contentLength = *tcpReceivedDatas;
contentLength = contentLength.right(contentLength.size() - contentLength.indexOf("Content-Length:") - 15);
QList<QByteArray> lengthList = contentLength.trimmed().split('\n');
if (lengthList.size()>1) // We want a number on this line and a next line to be sure we've got the full number
{
bool isNumeric;
int length = lengthList[0].trimmed().toInt(&isNumeric);
if (!isNumeric) // We've got something but it's not a number
{
logMessage("TCP: Content-Length must be a decimal number");
tcpReceivedDatas->clear();
socket->close();
return;
}
// Detect and send data files if we need to
// TODO: Process and send all the requested data
QByteArray data = *tcpReceivedDatas;
int i1=0;
do
{
i1 = data.indexOf("GET");
if (i1 != -1)
{
int i2 = data.indexOf("HTTP")-1;
QString path = data.mid(i1 + 4, i2-i1-4);
logMessage("Received GET:"+path);
QFile head(QString(NETDATAPATH)+"/test.bin");
QFile res("gameFiles"+path);
head.open(QIODevice::ReadOnly);
res.open(QIODevice::ReadOnly);
socket->write(head.readAll());
socket->write(QString("Content-Length: "+QString().setNum(res.size())+"\n\n").toLatin1());
socket->write(res.readAll());
head.close();
res.close();
logMessage("Sent ("+QString().setNum(res.size())+" bytes)");
data = removeHTTPHeader(data, "POST ");
data = removeHTTPHeader(data, "GET ");
}
} while (i1 != -1);
// Get the HTML data/payload
data = removeHTTPHeader(data, "POST ");
data = removeHTTPHeader(data, "GET ");
data = removeHTTPHeader(data, "User-Agent:");
data = removeHTTPHeader(data, "Host:");
data = removeHTTPHeader(data, "Accept:");
data = removeHTTPHeader(data, "Content-Length:");
data = removeHTTPHeader(data, "Content-Type:");
data = removeHTTPHeader(data, "Server:");
data = removeHTTPHeader(data, "Date:");
data = removeHTTPHeader(data, "Transfert-Encoding:");
data = removeHTTPHeader(data, "Connection:");
data = removeHTTPHeader(data, "Vary:");
data = removeHTTPHeader(data, "X-Powered-By:");
data = removeHTTPHeader(data, "accept-encoding:");
data = removeHTTPHeader(data, "if-modified-since:");
if (data.size() >= length) // Wait until we have all the data
{
data.truncate(length);
// Process data, if the buffer is not empty, keep reading
tcpProcessData(data, socket);
if (tcpReceivedDatas->isEmpty())
return;
nTries=0;
}
}
}
}
}
void Widget::tcpProcessPendingDatagrams()
{
// Find who's sending
QTcpSocket *socket = qobject_cast<QTcpSocket *>(sender());
if (socket == 0)
return;
unsigned nTries = 0;
// Acquire data
while(socket->state()==QAbstractSocket::ConnectedState && nTries<3) // Exit if disconnected, too much retries, malformed HTTP request, or after all requests are processed
{
tcpReceivedDatas->append(socket->readAll());
nTries++;
if (!tcpReceivedDatas->startsWith("POST") && !tcpReceivedDatas->startsWith("GET")) // Not HTTP, clear the buffer
{
logMessage("TCP: Received non-HTTP request");
tcpReceivedDatas->clear();
socket->close();
return;
}
else if (tcpReceivedDatas->contains("Content-Length:")) // POST or GET request, wait for Content-Length header
{
QByteArray contentLength = *tcpReceivedDatas;
contentLength = contentLength.right(contentLength.size() - contentLength.indexOf("Content-Length:") - 15);
QList<QByteArray> lengthList = contentLength.trimmed().split('\n');
if (lengthList.size()>1) // We want a number on this line and a next line to be sure we've got the full number
{
bool isNumeric;
int length = lengthList[0].trimmed().toInt(&isNumeric);
if (!isNumeric) // We've got something but it's not a number
{
logMessage("TCP: Error: Content-Length must be a (decimal) number !");
tcpReceivedDatas->clear();
socket->close();
return;
}
// Detect and send data files if we need to
QByteArray data = *tcpReceivedDatas;
//logMessage("DataReceived:"+data);
// Get the payload only (remove headers)
data = removeHTTPHeader(data, "POST ");
data = removeHTTPHeader(data, "GET ");
data = removeHTTPHeader(data, "User-Agent:");
data = removeHTTPHeader(data, "Host:");
data = removeHTTPHeader(data, "host:");
data = removeHTTPHeader(data, "Accept:");
data = removeHTTPHeader(data, "Content-Length:");
data = removeHTTPHeader(data, "Content-Type:");
data = removeHTTPHeader(data, "Server:");
data = removeHTTPHeader(data, "Date:");
data = removeHTTPHeader(data, "Transfert-Encoding:");
data = removeHTTPHeader(data, "Connection:");
data = removeHTTPHeader(data, "Vary:");
data = removeHTTPHeader(data, "X-Powered-By:");
data = removeHTTPHeader(data, "accept-encoding:");
data = removeHTTPHeader(data, "if-modified-since:");
if (data.size() >= length) // Wait until we have all the data
{
data.truncate(length);
// Process data, if the buffer is not empty, keep reading
tcpProcessData(data, socket);
// Delete the processed message from the buffer
*tcpReceivedDatas = tcpReceivedDatas->right(tcpReceivedDatas->size() - tcpReceivedDatas->indexOf(data) - data.size());
if (tcpReceivedDatas->isEmpty())
return;
nTries=0;
}
}
}
else if (tcpReceivedDatas->contains("\r\n\r\n")) // POST or GET request, without a Content-Length header
{
QByteArray data = *tcpReceivedDatas;
data = data.left(data.indexOf("\r\n\r\n")+4);
int i1=0;
do
{
i1 = data.indexOf("GET");
if (i1 != -1)
{
int i2 = data.indexOf("HTTP")-1;
QString path = data.mid(i1 + 4, i2-i1-4);
data = removeHTTPHeader(data, "POST ");
data = removeHTTPHeader(data, "GET ");
logMessage("Received GET:"+path);
QFile head(QString(NETDATAPATH)+"/dataHeader.bin");
QFile res("data/"+path);
head.open(QIODevice::ReadOnly);
if (!head.isOpen())
{
logMessage("Can't open header : "+head.errorString());
continue;
}
res.open(QIODevice::ReadOnly);
if (!res.isOpen())
{
logMessage("File not found");
head.close();
continue;
}
socket->write(head.readAll());
socket->write(QString("Content-Length: "+QString().setNum(res.size())+"\r\n\r\n").toLocal8Bit());
socket->write(res.readAll());
head.close();
res.close();
logMessage("Sent "+QString().setNum(res.size()+head.size())+" bytes");
}
} while (i1 != -1);
*tcpReceivedDatas = tcpReceivedDatas->mid(data.size());
}
}
}
void Widget::tcpProcessPendingDatagrams()
{
// Find who's sending
QTcpSocket *socket = qobject_cast<QTcpSocket *>(sender());
if (socket == nullptr)
return;
QByteArray* recvBuffer=nullptr;
for (auto pair : tcpClientsList)
{
if (pair.first == socket)
{
recvBuffer = pair.second;
break;
}
}
if (recvBuffer == nullptr)
{
logMessage("TCP: Error fetching the socket's associated recv buffer");
return;
}
unsigned nTries = 0;
// Acquire data
while(socket->state()==QAbstractSocket::ConnectedState && nTries<3) // Exit if disconnected, too much retries, malformed HTTP request, or after all requests are processed
{
recvBuffer->append(socket->readAll());
nTries++;
if (!recvBuffer->size())
{
#if DEBUG_LOG
logMessage("TCP: Nothing to read");
#endif
continue;
}
if (!recvBuffer->startsWith("POST") && !recvBuffer->startsWith("GET")) // Not HTTP, clear the buffer
{
#if DEBUG_LOG
logMessage(QString("TCP: Received non-HTTP request : ")+*recvBuffer->toHex());
#endif
recvBuffer->clear();
socket->close();
return;
}
else if (recvBuffer->contains("Content-Length:")) // POST or GET request, wait for Content-Length header
{
QByteArray contentLength = *recvBuffer;
contentLength = contentLength.right(contentLength.size() - contentLength.indexOf("Content-Length:") - 15);
QList<QByteArray> lengthList = contentLength.trimmed().split('\n');
if (lengthList.size()>1) // We want a number on this line and a next line to be sure we've got the full number
{
bool isNumeric;
int length = lengthList[0].trimmed().toInt(&isNumeric);
if (!isNumeric) // We've got something but it's not a number
{
logMessage("TCP: Error: Content-Length must be a (decimal) number !");
recvBuffer->clear();
socket->close();
return;
}
// Detect and send data files if we need to
QByteArray data = *recvBuffer;
#if DEBUG_LOG
logMessage("TCP: Got content-length request:"+data);
#endif
// Get the payload only (remove headers)
data = removeHTTPHeader(data, "POST ");
data = removeHTTPHeader(data, "GET ");
data = removeHTTPHeader(data, "User-Agent:");
data = removeHTTPHeader(data, "Host:");
data = removeHTTPHeader(data, "host:");
data = removeHTTPHeader(data, "Accept:");
data = removeHTTPHeader(data, "Content-Length:");
data = removeHTTPHeader(data, "Content-Type:");
data = removeHTTPHeader(data, "Server:");
data = removeHTTPHeader(data, "Date:");
data = removeHTTPHeader(data, "Transfert-Encoding:");
data = removeHTTPHeader(data, "Connection:");
data = removeHTTPHeader(data, "Vary:");
data = removeHTTPHeader(data, "X-Powered-By:");
data = removeHTTPHeader(data, "accept-encoding:");
data = removeHTTPHeader(data, "if-modified-since:");
if (data.size() >= length) // Wait until we have all the data
{
data.truncate(length);
// Process data, if the buffer is not empty, keep reading
tcpProcessData(data, socket);
// Delete the processed message from the buffer
*recvBuffer = recvBuffer->right(recvBuffer->size() - recvBuffer->indexOf(data) - data.size());
if (recvBuffer->isEmpty())
return;
nTries=0;
}
}
}
else if (recvBuffer->contains("\r\n\r\n")) // POST or GET request, without a Content-Length header
{
QByteArray data = *recvBuffer;
data = data.left(data.indexOf("\r\n\r\n")+4);
int dataSize = data.size();
#if DEBUG_LOG
logMessage("Got non-content length request:"+data);
#endif
int i1=0;
do
{
i1 = data.indexOf("GET");
if (i1 != -1)
{
int i2 = data.indexOf("HTTP")-1;
QString path = data.mid(i1 + 4, i2-i1-4);
if (path == "/log") // GET /log
{
data = removeHTTPHeader(data, "POST ");
data = removeHTTPHeader(data, "GET ");
data = removeHTTPHeader(data, "if-modified-since:");
data = removeHTTPHeader(data, "accept-encoding:");
data = removeHTTPHeader(data, "host:");
if (!enableGetlog)
continue;
QFile head(QString(NETDATAPATH)+"/dataTextHeader.bin");
head.open(QIODevice::ReadOnly);
if (!head.isOpen())
{
logMessage("Can't open header : "+head.errorString());
continue;
}
QByteArray logData = ui->log->toPlainText().toLatin1();
socket->write(head.readAll());
socket->write(QString("Content-Length: "+QString().setNum(logData.size())+"\r\n\r\n").toLocal8Bit());
socket->write(logData);
head.close();
logMessage("Sent log to "+socket->peerAddress().toString());
continue;
}
// Other GETs (not getlog)
data = removeHTTPHeader(data, "POST ");
data = removeHTTPHeader(data, "GET ");
logMessage("TCP: Replying to HTTP GET "+path);
QFile head(QString(NETDATAPATH)+"/dataHeader.bin");
QFile res("data/"+path);
head.open(QIODevice::ReadOnly);
if (!head.isOpen())
{
logMessage("TCP: Can't open header : "+head.errorString());
continue;
}
res.open(QIODevice::ReadOnly);
if (!res.isOpen())
{
logMessage("TCP: File not found");
head.close();
QFile head404(QString(NETDATAPATH)+"/notmodified.bin");
head404.open(QIODevice::ReadOnly);
if (!head404.isOpen())
{
logMessage("TCP: Can't open 304 Not Modified header : "+head404.errorString());
continue;
}
socket->write(head404.readAll());
head404.close();
continue;
}
socket->write(head.readAll());
socket->write(QString("Content-Length: "+QString().setNum(res.size())+"\r\n\r\n").toLocal8Bit());
socket->write(res.readAll());
head.close();
res.close();
#if DEBUG_LOG
logMessage("TCP: Sent "+QString().setNum(res.size()+head.size())+" bytes");
#endif
}
} while (i1 != -1);
*recvBuffer = recvBuffer->mid(dataSize);
}
}
}
