void tst_QHttpNetworkReply::parseEndOfHeader()
{
QFETCH(QByteArray, headers);
QFETCH(qint64, lengths);
TestHeaderSocket socket(headers);
TestHeaderReply reply;
QHttpNetworkReplyPrivate *replyPrivate = reply.replyPrivate();
qint64 headerBytes = replyPrivate->readHeader(&socket);
QCOMPARE(headerBytes, lengths);
}
void QHttpNetworkConnectionChannel::_q_receiveReply()
{
Q_ASSERT(socket);
if (!reply) {
// heh, how should that happen!
qWarning() << "QHttpNetworkConnectionChannel::_q_receiveReply() called without QHttpNetworkReply,"
<< socket->bytesAvailable() << "bytes on socket.";
close();
return;
}
// only run when the QHttpNetworkConnection is not currently being destructed, e.g.
// this function is called from _q_disconnected which is called because
// of ~QHttpNetworkConnectionPrivate
if (!qobject_cast<QHttpNetworkConnection*>(connection)) {
return;
}
QAbstractSocket::SocketState socketState = socket->state();
// connection might be closed to signal the end of data
if (socketState == QAbstractSocket::UnconnectedState) {
if (socket->bytesAvailable() <= 0) {
if (reply->d_func()->state == QHttpNetworkReplyPrivate::ReadingDataState) {
// finish this reply. this case happens when the server did not send a content length
reply->d_func()->state = QHttpNetworkReplyPrivate::AllDoneState;
allDone();
return;
} else {
handleUnexpectedEOF();
return;
}
} else {
// socket not connected but still bytes for reading.. just continue in this function
}
}
// read loop for the response
qint64 bytes = 0;
qint64 lastBytes = bytes;
do {
lastBytes = bytes;
QHttpNetworkReplyPrivate::ReplyState state = reply->d_func()->state;
switch (state) {
case QHttpNetworkReplyPrivate::NothingDoneState: {
state = reply->d_func()->state = QHttpNetworkReplyPrivate::ReadingStatusState;
// fallthrough
}
case QHttpNetworkReplyPrivate::ReadingStatusState: {
qint64 statusBytes = reply->d_func()->readStatus(socket);
if (statusBytes == -1) {
// connection broke while reading status. also handled if later _q_disconnected is called
handleUnexpectedEOF();
return;
}
bytes += statusBytes;
lastStatus = reply->d_func()->statusCode;
break;
}
case QHttpNetworkReplyPrivate::ReadingHeaderState: {
QHttpNetworkReplyPrivate *replyPrivate = reply->d_func();
qint64 headerBytes = replyPrivate->readHeader(socket);
if (headerBytes == -1) {
// connection broke while reading headers. also handled if later _q_disconnected is called
handleUnexpectedEOF();
return;
}
bytes += headerBytes;
// If headers were parsed successfully now it is the ReadingDataState
if (replyPrivate->state == QHttpNetworkReplyPrivate::ReadingDataState) {
if (replyPrivate->isCompressed() && replyPrivate->autoDecompress) {
// remove the Content-Length from header
replyPrivate->removeAutoDecompressHeader();
} else {
replyPrivate->autoDecompress = false;
}
if (replyPrivate->statusCode == 100) {
replyPrivate->clearHttpLayerInformation();
replyPrivate->state = QHttpNetworkReplyPrivate::ReadingStatusState;
break; // ignore
}
if (replyPrivate->shouldEmitSignals())
emit reply->headerChanged();
// After headerChanged had been emitted
// we can suddenly have a replyPrivate->userProvidedDownloadBuffer
// this is handled in the ReadingDataState however
if (!replyPrivate->expectContent()) {
replyPrivate->state = QHttpNetworkReplyPrivate::AllDoneState;
allDone();
break;
}
}
break;
}
case QHttpNetworkReplyPrivate::ReadingDataState: {
QHttpNetworkReplyPrivate *replyPrivate = reply->d_func();
if (socket->state() == QAbstractSocket::ConnectedState &&
replyPrivate->downstreamLimited && !replyPrivate->responseData.isEmpty() && replyPrivate->shouldEmitSignals()) {
// (only do the following when still connected, not when we have already been disconnected and there is still data)
// We already have some HTTP body data. We don't read more from the socket until
// this is fetched by QHttpNetworkAccessHttpBackend. If we would read more,
// we could not limit our read buffer usage.
// We only do this when shouldEmitSignals==true because our HTTP parsing
// always needs to parse the 401/407 replies. Therefore they don't really obey
// to the read buffer maximum size, but we don't care since they should be small.
return;
}
if (replyPrivate->userProvidedDownloadBuffer) {
// the user provided a direct buffer where we should put all our data in.
// this only works when we can tell the user the content length and he/she can allocate
// the buffer in that size.
// note that this call will read only from the still buffered data
qint64 haveRead = replyPrivate->readBodyVeryFast(socket, replyPrivate->userProvidedDownloadBuffer + replyPrivate->totalProgress);
if (haveRead > 0) {
bytes += haveRead;
replyPrivate->totalProgress += haveRead;
// the user will get notified of it via progress signal
emit reply->dataReadProgress(replyPrivate->totalProgress, replyPrivate->bodyLength);
} else if (haveRead == 0) {
// Happens since this called in a loop. Currently no bytes available.
} else if (haveRead < 0) {
connection->d_func()->emitReplyError(socket, reply, QNetworkReply::RemoteHostClosedError);
break;
}
} else if (!replyPrivate->isChunked() && !replyPrivate->autoDecompress
&& replyPrivate->bodyLength > 0) {
// bulk files like images should fulfill these properties and
// we can therefore save on memory copying
qint64 haveRead = replyPrivate->readBodyFast(socket, &replyPrivate->responseData);
bytes += haveRead;
replyPrivate->totalProgress += haveRead;
if (replyPrivate->shouldEmitSignals()) {
emit reply->readyRead();
emit reply->dataReadProgress(replyPrivate->totalProgress, replyPrivate->bodyLength);
}
}
else
{
// use the traditional slower reading (for compressed encoding, chunked encoding,
// no content-length etc)
qint64 haveRead = replyPrivate->readBody(socket, &replyPrivate->responseData);
if (haveRead > 0) {
bytes += haveRead;
replyPrivate->totalProgress += haveRead;
if (replyPrivate->shouldEmitSignals()) {
emit reply->readyRead();
emit reply->dataReadProgress(replyPrivate->totalProgress, replyPrivate->bodyLength);
}
} else if (haveRead == -1) {
// Some error occured
connection->d_func()->emitReplyError(socket, reply, QNetworkReply::ProtocolFailure);
break;
}
}
// still in ReadingDataState? This function will be called again by the socket's readyRead
if (replyPrivate->state == QHttpNetworkReplyPrivate::ReadingDataState)
break;
// everything done, fall through
}
case QHttpNetworkReplyPrivate::AllDoneState:
allDone();
break;
default:
break;
}
} while (bytes != lastBytes && reply);
}
bool QHttpNetworkConnectionChannel::sendRequest()
{
if (!reply) {
// heh, how should that happen!
qWarning() << "QHttpNetworkConnectionChannel::sendRequest() called without QHttpNetworkReply";
state = QHttpNetworkConnectionChannel::IdleState;
return false;
}
switch (state) {
case QHttpNetworkConnectionChannel::IdleState: { // write the header
if (!ensureConnection()) {
// wait for the connection (and encryption) to be done
// sendRequest will be called again from either
// _q_connected or _q_encrypted
return false;
}
written = 0; // excluding the header
bytesTotal = 0;
QHttpNetworkReplyPrivate *replyPrivate = reply->d_func();
replyPrivate->clear();
replyPrivate->connection = connection;
replyPrivate->connectionChannel = this;
replyPrivate->autoDecompress = request.d->autoDecompress;
replyPrivate->pipeliningUsed = false;
// if the url contains authentication parameters, use the new ones
// both channels will use the new authentication parameters
if (!request.url().userInfo().isEmpty() && request.withCredentials()) {
QUrl url = request.url();
QAuthenticator &auth = authenticator;
if (url.userName() != auth.user()
|| (!url.password().isEmpty() && url.password() != auth.password())) {
auth.setUser(url.userName());
auth.setPassword(url.password());
connection->d_func()->copyCredentials(connection->d_func()->indexOf(socket), &auth, false);
}
// clear the userinfo, since we use the same request for resending
// userinfo in url can conflict with the one in the authenticator
url.setUserInfo(QString());
request.setUrl(url);
}
// Will only be false if QtWebKit is performing a cross-origin XMLHttpRequest
// and withCredentials has not been set to true.
if (request.withCredentials())
connection->d_func()->createAuthorization(socket, request);
#ifndef QT_NO_NETWORKPROXY
QByteArray header = QHttpNetworkRequestPrivate::header(request,
(connection->d_func()->networkProxy.type() != QNetworkProxy::NoProxy));
#else
QByteArray header = QHttpNetworkRequestPrivate::header(request, false);
#endif
socket->write(header);
// flushing is dangerous (QSslSocket calls transmit which might read or error)
// socket->flush();
QNonContiguousByteDevice* uploadByteDevice = request.uploadByteDevice();
if (uploadByteDevice) {
// connect the signals so this function gets called again
QObject::connect(uploadByteDevice, SIGNAL(readyRead()),this, SLOT(_q_uploadDataReadyRead()));
bytesTotal = request.contentLength();
state = QHttpNetworkConnectionChannel::WritingState; // start writing data
sendRequest(); //recurse
} else {
state = QHttpNetworkConnectionChannel::WaitingState; // now wait for response
sendRequest(); //recurse
}
break;
}
case QHttpNetworkConnectionChannel::WritingState:
{
// write the data
QNonContiguousByteDevice* uploadByteDevice = request.uploadByteDevice();
if (!uploadByteDevice || bytesTotal == written) {
if (uploadByteDevice)
emit reply->dataSendProgress(written, bytesTotal);
state = QHttpNetworkConnectionChannel::WaitingState; // now wait for response
sendRequest(); // recurse
break;
}
// only feed the QTcpSocket buffer when there is less than 32 kB in it
const qint64 socketBufferFill = 32*1024;
const qint64 socketWriteMaxSize = 16*1024;
#ifndef QT_NO_OPENSSL
QSslSocket *sslSocket = qobject_cast<QSslSocket*>(socket);
// if it is really an ssl socket, check more than just bytesToWrite()
while ((socket->bytesToWrite() + (sslSocket ? sslSocket->encryptedBytesToWrite() : 0))
<= socketBufferFill && bytesTotal != written)
#else
while (socket->bytesToWrite() <= socketBufferFill
&& bytesTotal != written)
#endif
{
// get pointer to upload data
qint64 currentReadSize = 0;
qint64 desiredReadSize = qMin(socketWriteMaxSize, bytesTotal - written);
const char *readPointer = uploadByteDevice->readPointer(desiredReadSize, currentReadSize);
if (currentReadSize == -1) {
// premature eof happened
connection->d_func()->emitReplyError(socket, reply, QNetworkReply::UnknownNetworkError);
return false;
break;
} else if (readPointer == 0 || currentReadSize == 0) {
// nothing to read currently, break the loop
break;
} else {
qint64 currentWriteSize = socket->write(readPointer, currentReadSize);
if (currentWriteSize == -1 || currentWriteSize != currentReadSize) {
// socket broke down
connection->d_func()->emitReplyError(socket, reply, QNetworkReply::UnknownNetworkError);
return false;
} else {
written += currentWriteSize;
uploadByteDevice->advanceReadPointer(currentWriteSize);
emit reply->dataSendProgress(written, bytesTotal);
if (written == bytesTotal) {
// make sure this function is called once again
state = QHttpNetworkConnectionChannel::WaitingState;
sendRequest();
break;
}
}
}
}
break;
}
case QHttpNetworkConnectionChannel::WaitingState:
{
QNonContiguousByteDevice* uploadByteDevice = request.uploadByteDevice();
if (uploadByteDevice) {
QObject::disconnect(uploadByteDevice, SIGNAL(readyRead()), this, SLOT(_q_uploadDataReadyRead()));
}
// HTTP pipelining
//connection->d_func()->fillPipeline(socket);
//socket->flush();
// ensure we try to receive a reply in all cases, even if _q_readyRead_ hat not been called
// this is needed if the sends an reply before we have finished sending the request. In that
// case receiveReply had been called before but ignored the server reply
if (socket->bytesAvailable())
QMetaObject::invokeMethod(this, "_q_receiveReply", Qt::QueuedConnection);
break;
}
case QHttpNetworkConnectionChannel::ReadingState:
// ignore _q_bytesWritten in these states
// fall through
default:
break;
}
return true;
}
void QHttpNetworkConnectionChannel::_q_receiveReply()
{
Q_ASSERT(socket);
if (!reply) {
// heh, how should that happen!
qWarning() << "QHttpNetworkConnectionChannel::_q_receiveReply() called without QHttpNetworkReply,"
<< socket->bytesAvailable() << "bytes on socket.";
close();
return;
}
// only run when the QHttpNetworkConnection is not currently being destructed, e.g.
// this function is called from _q_disconnected which is called because
// of ~QHttpNetworkConnectionPrivate
if (!qobject_cast<QHttpNetworkConnection*>(connection)) {
return;
}
qint64 bytes = 0;
QAbstractSocket::SocketState socketState = socket->state();
// connection might be closed to signal the end of data
if (socketState == QAbstractSocket::UnconnectedState) {
if (socket->bytesAvailable() <= 0) {
if (reply->d_func()->state == QHttpNetworkReplyPrivate::ReadingDataState) {
// finish this reply. this case happens when the server did not send a content length
reply->d_func()->state = QHttpNetworkReplyPrivate::AllDoneState;
allDone();
return;
} else {
handleUnexpectedEOF();
return;
}
} else {
// socket not connected but still bytes for reading.. just continue in this function
}
}
// read loop for the response
while (socket->bytesAvailable()) {
QHttpNetworkReplyPrivate::ReplyState state = reply->d_func()->state;
switch (state) {
case QHttpNetworkReplyPrivate::NothingDoneState: {
// only eat whitespace on the first call
eatWhitespace();
state = reply->d_func()->state = QHttpNetworkReplyPrivate::ReadingStatusState;
// fallthrough
}
case QHttpNetworkReplyPrivate::ReadingStatusState: {
qint64 statusBytes = reply->d_func()->readStatus(socket);
if (statusBytes == -1) {
// connection broke while reading status. also handled if later _q_disconnected is called
handleUnexpectedEOF();
return;
}
bytes += statusBytes;
lastStatus = reply->d_func()->statusCode;
break;
}
case QHttpNetworkReplyPrivate::ReadingHeaderState: {
QHttpNetworkReplyPrivate *replyPrivate = reply->d_func();
qint64 headerBytes = replyPrivate->readHeader(socket);
if (headerBytes == -1) {
// connection broke while reading headers. also handled if later _q_disconnected is called
handleUnexpectedEOF();
return;
}
bytes += headerBytes;
if (replyPrivate->state == QHttpNetworkReplyPrivate::ReadingDataState) {
if (replyPrivate->isGzipped() && replyPrivate->autoDecompress) {
// remove the Content-Length from header
replyPrivate->removeAutoDecompressHeader();
} else {
replyPrivate->autoDecompress = false;
}
if (replyPrivate->statusCode == 100) {
replyPrivate->clearHttpLayerInformation();
replyPrivate->state = QHttpNetworkReplyPrivate::ReadingStatusState;
break; // ignore
}
if (replyPrivate->shouldEmitSignals())
emit reply->headerChanged();
if (!replyPrivate->expectContent()) {
replyPrivate->state = QHttpNetworkReplyPrivate::AllDoneState;
allDone();
break;
}
}
break;
}
case QHttpNetworkReplyPrivate::ReadingDataState: {
QHttpNetworkReplyPrivate *replyPrivate = reply->d_func();
if (replyPrivate->downstreamLimited && !replyPrivate->responseData.isEmpty() && replyPrivate->shouldEmitSignals()) {
// We already have some HTTP body data. We don't read more from the socket until
// this is fetched by QHttpNetworkAccessHttpBackend. If we would read more,
// we could not limit our read buffer usage.
// We only do this when shouldEmitSignals==true because our HTTP parsing
// always needs to parse the 401/407 replies. Therefore they don't really obey
// to the read buffer maximum size, but we don't care since they should be small.
return;
}
if (!replyPrivate->isChunked() && !replyPrivate->autoDecompress
&& replyPrivate->bodyLength > 0) {
// bulk files like images should fulfill these properties and
// we can therefore save on memory copying
bytes = replyPrivate->readBodyFast(socket, &replyPrivate->responseData);
replyPrivate->totalProgress += bytes;
if (replyPrivate->shouldEmitSignals()) {
QPointer<QHttpNetworkReply> replyPointer = reply;
emit reply->readyRead();
// make sure that the reply is valid
if (replyPointer.isNull())
return;
emit reply->dataReadProgress(replyPrivate->totalProgress, replyPrivate->bodyLength);
// make sure that the reply is valid
if (replyPointer.isNull())
return;
}
}
else
{
// use the traditional slower reading (for compressed encoding, chunked encoding,
// no content-length etc)
QByteDataBuffer byteDatas;
bytes = replyPrivate->readBody(socket, &byteDatas);
if (bytes) {
if (replyPrivate->autoDecompress)
replyPrivate->appendCompressedReplyData(byteDatas);
else
replyPrivate->appendUncompressedReplyData(byteDatas);
if (!replyPrivate->autoDecompress) {
replyPrivate->totalProgress += bytes;
if (replyPrivate->shouldEmitSignals()) {
QPointer<QHttpNetworkReply> replyPointer = reply;
// important: At the point of this readyRead(), the byteDatas list must be empty,
// else implicit sharing will trigger memcpy when the user is reading data!
emit reply->readyRead();
// make sure that the reply is valid
if (replyPointer.isNull())
return;
emit reply->dataReadProgress(replyPrivate->totalProgress, replyPrivate->bodyLength);
// make sure that the reply is valid
if (replyPointer.isNull())
return;
}
}
#ifndef QT_NO_COMPRESS
else if (!expand(false)) { // expand a chunk if possible
return; // ### expand failed
}
#endif
}
}
// still in ReadingDataState? This function will be called again by the socket's readyRead
if (replyPrivate->state == QHttpNetworkReplyPrivate::ReadingDataState)
break;
// everything done, fall through
}
case QHttpNetworkReplyPrivate::AllDoneState:
allDone();
break;
default:
break;
}
}
}
void QHttpNetworkConnectionChannel::_q_receiveReply()
{
Q_ASSERT(socket);
qint64 bytes = 0;
QAbstractSocket::SocketState socketState = socket->state();
// connection might be closed to signal the end of data
if (socketState == QAbstractSocket::UnconnectedState) {
if (!socket->bytesAvailable()) {
if (reply && reply->d_func()->state == QHttpNetworkReplyPrivate::ReadingDataState) {
reply->d_func()->state = QHttpNetworkReplyPrivate::AllDoneState;
this->state = QHttpNetworkConnectionChannel::IdleState;
allDone();
} else {
// try to reconnect/resend before sending an error.
if (reconnectAttempts-- > 0) {
closeAndResendCurrentRequest();
} else if (reply) {
reply->d_func()->errorString = connection->d_func()->errorDetail(QNetworkReply::RemoteHostClosedError, socket);
emit reply->finishedWithError(QNetworkReply::RemoteHostClosedError, reply->d_func()->errorString);
QMetaObject::invokeMethod(connection, "_q_startNextRequest", Qt::QueuedConnection);
}
}
}
}
// read loop for the response
while (socket->bytesAvailable()) {
QHttpNetworkReplyPrivate::ReplyState state = reply ? reply->d_func()->state : QHttpNetworkReplyPrivate::AllDoneState;
switch (state) {
case QHttpNetworkReplyPrivate::NothingDoneState:
case QHttpNetworkReplyPrivate::ReadingStatusState: {
eatWhitespace();
qint64 statusBytes = reply->d_func()->readStatus(socket);
if (statusBytes == -1 && reconnectAttempts <= 0) {
// too many errors reading/receiving/parsing the status, close the socket and emit error
close();
reply->d_func()->errorString = connection->d_func()->errorDetail(QNetworkReply::ProtocolFailure, socket);
emit reply->finishedWithError(QNetworkReply::ProtocolFailure, reply->d_func()->errorString);
QMetaObject::invokeMethod(connection, "_q_startNextRequest", Qt::QueuedConnection);
break;
} else if (statusBytes == -1) {
reconnectAttempts--;
reply->d_func()->clear();
closeAndResendCurrentRequest();
break;
}
bytes += statusBytes;
lastStatus = reply->d_func()->statusCode;
break;
}
case QHttpNetworkReplyPrivate::ReadingHeaderState: {
QHttpNetworkReplyPrivate *replyPrivate = reply->d_func();
bytes += replyPrivate->readHeader(socket);
if (replyPrivate->state == QHttpNetworkReplyPrivate::ReadingDataState) {
if (replyPrivate->isGzipped() && replyPrivate->autoDecompress) {
// remove the Content-Length from header
replyPrivate->removeAutoDecompressHeader();
} else {
replyPrivate->autoDecompress = false;
}
if (replyPrivate->statusCode == 100) {
replyPrivate->state = QHttpNetworkReplyPrivate::ReadingStatusState;
break; // ignore
}
if (replyPrivate->shouldEmitSignals())
emit reply->headerChanged();
if (!replyPrivate->expectContent()) {
replyPrivate->state = QHttpNetworkReplyPrivate::AllDoneState;
this->state = QHttpNetworkConnectionChannel::IdleState;
allDone();
return;
}
}
break;
}
case QHttpNetworkReplyPrivate::ReadingDataState: {
QHttpNetworkReplyPrivate *replyPrivate = reply->d_func();
if (replyPrivate->downstreamLimited && !replyPrivate->responseData.isEmpty() && replyPrivate->shouldEmitSignals()) {
// We already have some HTTP body data. We don't read more from the socket until
// this is fetched by QHttpNetworkAccessHttpBackend. If we would read more,
// we could not limit our read buffer usage.
// We only do this when shouldEmitSignals==true because our HTTP parsing
// always needs to parse the 401/407 replies. Therefore they don't really obey
// to the read buffer maximum size, but we don't care since they should be small.
return;
}
if (!replyPrivate->isChunked() && !replyPrivate->autoDecompress
&& replyPrivate->bodyLength > 0) {
// bulk files like images should fulfill these properties and
// we can therefore save on memory copying
bytes = replyPrivate->readBodyFast(socket, &replyPrivate->responseData);
replyPrivate->totalProgress += bytes;
if (replyPrivate->shouldEmitSignals()) {
QPointer<QHttpNetworkReply> replyPointer = reply;
emit reply->readyRead();
// make sure that the reply is valid
if (replyPointer.isNull())
return;
emit reply->dataReadProgress(replyPrivate->totalProgress, replyPrivate->bodyLength);
// make sure that the reply is valid
if (replyPointer.isNull())
return;
}
}
else
{
// use the traditional slower reading (for compressed encoding, chunked encoding,
// no content-length etc)
QByteDataBuffer byteDatas;
bytes = replyPrivate->readBody(socket, &byteDatas);
if (bytes) {
if (replyPrivate->autoDecompress)
replyPrivate->appendCompressedReplyData(byteDatas);
else
replyPrivate->appendUncompressedReplyData(byteDatas);
if (!replyPrivate->autoDecompress) {
replyPrivate->totalProgress += bytes;
if (replyPrivate->shouldEmitSignals()) {
QPointer<QHttpNetworkReply> replyPointer = reply;
// important: At the point of this readyRead(), the byteDatas list must be empty,
// else implicit sharing will trigger memcpy when the user is reading data!
emit reply->readyRead();
// make sure that the reply is valid
if (replyPointer.isNull())
return;
emit reply->dataReadProgress(replyPrivate->totalProgress, replyPrivate->bodyLength);
// make sure that the reply is valid
if (replyPointer.isNull())
return;
}
}
#ifndef QT_NO_COMPRESS
else if (!expand(false)) { // expand a chunk if possible
return; // ### expand failed
}
#endif
}
}
if (replyPrivate->state == QHttpNetworkReplyPrivate::ReadingDataState)
break;
// everything done, fall through
}
case QHttpNetworkReplyPrivate::AllDoneState:
this->state = QHttpNetworkConnectionChannel::IdleState;
allDone();
break;
default:
break;
}
}
}
