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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
// Qt-Security score:critical reason:network-protocol
#include "qhttpsocketengine_p.h"
#include "qtcpsocket.h"
#include "qhostaddress.h"
#include "qurl.h"
#include "private/qhttpnetworkreply_p.h"
#include "private/qiodevice_p.h"
#include "qdeadlinetimer.h"
#include "qnetworkinterface.h"
#if !defined(QT_NO_NETWORKPROXY)
#include <qdebug.h>
QT_BEGIN_NAMESPACE
using namespace Qt::StringLiterals;
#define DEBUG
QHttpSocketEngine::QHttpSocketEngine(QObject *parent)
: QAbstractSocketEngine(*new QHttpSocketEnginePrivate, parent)
{
}
QHttpSocketEngine::~QHttpSocketEngine()
{
}
bool QHttpSocketEngine::initialize(QAbstractSocket::SocketType type, QAbstractSocket::NetworkLayerProtocol protocol)
{
Q_D(QHttpSocketEngine);
if (type != QAbstractSocket::TcpSocket)
return false;
setProtocol(protocol);
setSocketType(type);
d->socket = new QTcpSocket(this);
d->reply = new QHttpNetworkReply(QUrl(), this);
// Explicitly disable proxying on the proxy socket itself to avoid
// unwanted recursion.
d->socket->setProxy(QNetworkProxy::NoProxy);
// Intercept all the signals.
connect(d->socket, SIGNAL(connected()),
this, SLOT(slotSocketConnected()),
Qt::DirectConnection);
connect(d->socket, SIGNAL(disconnected()),
this, SLOT(slotSocketDisconnected()),
Qt::DirectConnection);
connect(d->socket, SIGNAL(readyRead()),
this, SLOT(slotSocketReadNotification()),
Qt::DirectConnection);
connect(d->socket, SIGNAL(bytesWritten(qint64)),
this, SLOT(slotSocketBytesWritten()),
Qt::DirectConnection);
connect(d->socket, SIGNAL(errorOccurred(QAbstractSocket::SocketError)),
this, SLOT(slotSocketError(QAbstractSocket::SocketError)),
Qt::DirectConnection);
connect(d->socket, SIGNAL(stateChanged(QAbstractSocket::SocketState)),
this, SLOT(slotSocketStateChanged(QAbstractSocket::SocketState)),
Qt::DirectConnection);
return true;
}
bool QHttpSocketEngine::initialize(qintptr, QAbstractSocket::SocketState)
{
return false;
}
void QHttpSocketEngine::setProxy(const QNetworkProxy &proxy)
{
Q_D(QHttpSocketEngine);
d->proxy = proxy;
QString user = proxy.user();
if (!user.isEmpty())
d->authenticator.setUser(user);
QString password = proxy.password();
if (!password.isEmpty())
d->authenticator.setPassword(password);
}
qintptr QHttpSocketEngine::socketDescriptor() const
{
Q_D(const QHttpSocketEngine);
return d->socket ? d->socket->socketDescriptor() : -1;
}
bool QHttpSocketEngine::isValid() const
{
Q_D(const QHttpSocketEngine);
return d->socket;
}
bool QHttpSocketEngine::connectInternal()
{
Q_D(QHttpSocketEngine);
d->credentialsSent = false;
// If the handshake is done, enter ConnectedState state and return true.
if (d->state == Connected) {
qWarning("QHttpSocketEngine::connectToHost: called when already connected");
setState(QAbstractSocket::ConnectedState);
return true;
}
if (d->state == ConnectSent && d->socketState != QAbstractSocket::ConnectedState)
setState(QAbstractSocket::UnconnectedState);
// Handshake isn't done. If unconnected, start connecting.
if (d->state == None && d->socket->state() == QAbstractSocket::UnconnectedState) {
setState(QAbstractSocket::ConnectingState);
//limit buffer in internal socket, data is buffered in the external socket under application control
d->socket->setReadBufferSize(65536);
d->socket->connectToHost(d->proxy.hostName(), d->proxy.port());
}
// If connected (might happen right away, at least for localhost services
// on some BSD systems), there might already be bytes available.
if (bytesAvailable())
slotSocketReadNotification();
return d->socketState == QAbstractSocket::ConnectedState;
}
bool QHttpSocketEngine::connectToHost(const QHostAddress &address, quint16 port)
{
Q_D(QHttpSocketEngine);
setPeerAddress(address);
setPeerPort(port);
d->peerName.clear();
return connectInternal();
}
bool QHttpSocketEngine::connectToHostByName(const QString &hostname, quint16 port)
{
Q_D(QHttpSocketEngine);
setPeerAddress(QHostAddress());
setPeerPort(port);
d->peerName = hostname;
return connectInternal();
}
bool QHttpSocketEngine::bind(const QHostAddress &, quint16)
{
qWarning("Operation is not supported");
setError(QAbstractSocket::UnsupportedSocketOperationError, "Unsupported socket operation"_L1);
return false;
}
bool QHttpSocketEngine::listen(int backlog)
{
Q_UNUSED(backlog);
qWarning("Operation is not supported");
setError(QAbstractSocket::UnsupportedSocketOperationError, "Unsupported socket operation"_L1);
return false;
}
qintptr QHttpSocketEngine::accept()
{
qWarning("Operation is not supported");
setError(QAbstractSocket::UnsupportedSocketOperationError, "Unsupported socket operation"_L1);
return -1;
}
void QHttpSocketEngine::close()
{
Q_D(QHttpSocketEngine);
if (d->socket) {
d->socket->close();
delete d->socket;
d->socket = nullptr;
}
}
qint64 QHttpSocketEngine::bytesAvailable() const
{
Q_D(const QHttpSocketEngine);
return d->socket ? d->socket->bytesAvailable() : 0;
}
qint64 QHttpSocketEngine::read(char *data, qint64 maxlen)
{
Q_D(QHttpSocketEngine);
qint64 bytesRead = d->socket->read(data, maxlen);
if (d->socket->state() == QAbstractSocket::UnconnectedState
&& d->socket->bytesAvailable() == 0) {
emitReadNotification();
}
if (bytesRead == -1) {
// If nothing has been read so far, and the direct socket read
// failed, return the socket's error. Otherwise, fall through and
// return as much as we read so far.
close();
setError(QAbstractSocket::RemoteHostClosedError, "Remote host closed"_L1);
setState(QAbstractSocket::UnconnectedState);
return -1;
}
return bytesRead;
}
qint64 QHttpSocketEngine::write(const char *data, qint64 len)
{
Q_D(QHttpSocketEngine);
return d->socket->write(data, len);
}
#ifndef QT_NO_UDPSOCKET
#ifndef QT_NO_NETWORKINTERFACE
bool QHttpSocketEngine::joinMulticastGroup(const QHostAddress &,
const QNetworkInterface &)
{
qWarning("Operation is not supported");
setError(QAbstractSocket::UnsupportedSocketOperationError, "Unsupported socket operation"_L1);
return false;
}
bool QHttpSocketEngine::leaveMulticastGroup(const QHostAddress &,
const QNetworkInterface &)
{
qWarning("Operation is not supported");
setError(QAbstractSocket::UnsupportedSocketOperationError, "Unsupported socket operation"_L1);
return false;
}
QNetworkInterface QHttpSocketEngine::multicastInterface() const
{
return QNetworkInterface();
}
bool QHttpSocketEngine::setMulticastInterface(const QNetworkInterface &)
{
qWarning("Operation is not supported");
setError(QAbstractSocket::UnsupportedSocketOperationError, "Unsupported socket operation"_L1);
return false;
}
#endif // QT_NO_NETWORKINTERFACE
bool QHttpSocketEngine::hasPendingDatagrams() const
{
qWarning("Operation is not supported");
return false;
}
qint64 QHttpSocketEngine::pendingDatagramSize() const
{
qWarning("Operation is not supported");
return -1;
}
#endif // QT_NO_UDPSOCKET
qint64 QHttpSocketEngine::readDatagram(char *, qint64, QIpPacketHeader *, PacketHeaderOptions)
{
qWarning("Operation is not supported");
setError(QAbstractSocket::UnsupportedSocketOperationError, "Unsupported socket operation"_L1);
return -1;
}
qint64 QHttpSocketEngine::writeDatagram(const char *, qint64, const QIpPacketHeader &)
{
qWarning("Operation is not supported");
setError(QAbstractSocket::UnsupportedSocketOperationError, "Unsupported socket operation"_L1);
return -1;
}
qint64 QHttpSocketEngine::bytesToWrite() const
{
Q_D(const QHttpSocketEngine);
if (d->socket) {
return d->socket->bytesToWrite();
} else {
return 0;
}
}
int QHttpSocketEngine::option(SocketOption option) const
{
Q_D(const QHttpSocketEngine);
if (d->socket) {
// convert the enum and call the real socket
if (option == QAbstractSocketEngine::LowDelayOption)
return d->socket->socketOption(QAbstractSocket::LowDelayOption).toInt();
if (option == QAbstractSocketEngine::KeepAliveOption)
return d->socket->socketOption(QAbstractSocket::KeepAliveOption).toInt();
}
return -1;
}
bool QHttpSocketEngine::setOption(SocketOption option, int value)
{
Q_D(QHttpSocketEngine);
if (d->socket) {
// convert the enum and call the real socket
if (option == QAbstractSocketEngine::LowDelayOption)
d->socket->setSocketOption(QAbstractSocket::LowDelayOption, value);
if (option == QAbstractSocketEngine::KeepAliveOption)
d->socket->setSocketOption(QAbstractSocket::KeepAliveOption, value);
return true;
}
return false;
}
bool QHttpSocketEngine::waitForRead(QDeadlineTimer deadline, bool *timedOut)
{
Q_D(const QHttpSocketEngine);
if (!d->socket || d->socket->state() == QAbstractSocket::UnconnectedState)
return false;
// Wait for more data if nothing is available.
if (!d->socket->bytesAvailable()) {
if (!d->socket->waitForReadyRead(deadline.remainingTime())) {
if (d->socket->state() == QAbstractSocket::UnconnectedState)
return true;
setError(d->socket->error(), d->socket->errorString());
if (timedOut && d->socket->error() == QAbstractSocket::SocketTimeoutError)
*timedOut = true;
return false;
}
}
waitForProtocolHandshake(deadline);
// Report any error that may occur.
if (d->state != Connected) {
setError(d->socket->error(), d->socket->errorString());
if (timedOut && d->socket->error() == QAbstractSocket::SocketTimeoutError)
*timedOut = true;
return false;
}
return true;
}
bool QHttpSocketEngine::waitForWrite(QDeadlineTimer deadline, bool *timedOut)
{
Q_D(const QHttpSocketEngine);
// If we're connected, just forward the call.
if (d->state == Connected) {
if (d->socket->bytesToWrite()) {
if (!d->socket->waitForBytesWritten(deadline.remainingTime())) {
if (d->socket->error() == QAbstractSocket::SocketTimeoutError && timedOut)
*timedOut = true;
return false;
}
}
return true;
}
waitForProtocolHandshake(deadline);
// Report any error that may occur.
if (d->state != Connected) {
// setError(d->socket->error(), d->socket->errorString());
if (timedOut && d->socket->error() == QAbstractSocket::SocketTimeoutError)
*timedOut = true;
}
return true;
}
bool QHttpSocketEngine::waitForReadOrWrite(bool *readyToRead, bool *readyToWrite,
bool checkRead, bool checkWrite,
QDeadlineTimer deadline, bool *timedOut)
{
Q_UNUSED(checkRead);
if (!checkWrite) {
// Not interested in writing? Then we wait for read notifications.
bool canRead = waitForRead(deadline, timedOut);
if (readyToRead)
*readyToRead = canRead;
return canRead;
}
// Interested in writing? Then we wait for write notifications.
bool canWrite = waitForWrite(deadline, timedOut);
if (readyToWrite)
*readyToWrite = canWrite;
return canWrite;
}
void QHttpSocketEngine::waitForProtocolHandshake(QDeadlineTimer deadline) const
{
Q_D(const QHttpSocketEngine);
// If we're not connected yet, wait until we are (and until bytes have
// been received, i.e. the socket has connected, we have sent the
// greeting, and then received the response), or until an error occurs.
while (d->state != Connected && d->socket->waitForReadyRead(deadline.remainingTime())) {
// Loop while the protocol handshake is taking place.
}
}
bool QHttpSocketEngine::isReadNotificationEnabled() const
{
Q_D(const QHttpSocketEngine);
return d->readNotificationEnabled;
}
void QHttpSocketEngine::setReadNotificationEnabled(bool enable)
{
Q_D(QHttpSocketEngine);
if (d->readNotificationEnabled == enable) {
// When already enabled, we still need to check for
// buffered data. The inner socket may have data in its user-space
// buffer that won't trigger a new OS-level read notification.
// Without this check, partial reads leave data stranded forever.
if (enable && bytesAvailable() > 0)
emitReadNotification();
return;
}
d->readNotificationEnabled = enable;
if (enable) {
// Enabling read notification can trigger a notification.
if (bytesAvailable()) {
slotSocketReadNotification();
} else if (d->socket && d->socket->state() == QAbstractSocket::UnconnectedState) {
emitReadNotification();
}
}
}
bool QHttpSocketEngine::isWriteNotificationEnabled() const
{
Q_D(const QHttpSocketEngine);
return d->writeNotificationEnabled;
}
void QHttpSocketEngine::setWriteNotificationEnabled(bool enable)
{
Q_D(QHttpSocketEngine);
d->writeNotificationEnabled = enable;
if (enable && d->state == Connected && d->socket->state() == QAbstractSocket::ConnectedState)
QMetaObject::invokeMethod(this, "writeNotification", Qt::QueuedConnection);
}
bool QHttpSocketEngine::isExceptionNotificationEnabled() const
{
Q_D(const QHttpSocketEngine);
return d->exceptNotificationEnabled;
}
void QHttpSocketEngine::setExceptionNotificationEnabled(bool enable)
{
Q_D(QHttpSocketEngine);
d->exceptNotificationEnabled = enable;
}
void QHttpSocketEngine::slotSocketConnected()
{
Q_D(QHttpSocketEngine);
// Send the greeting.
const char method[] = "CONNECT";
QByteArray peerAddress = d->peerName.isEmpty() ?
d->peerAddress.toString().toLatin1() :
QUrl::toAce(d->peerName);
QByteArray path = peerAddress + ':' + QByteArray::number(d->peerPort);
QByteArray data = method;
data += ' ';
data += path;
data += " HTTP/1.1\r\n";
data += "Proxy-Connection: keep-alive\r\n";
data += "Host: " + peerAddress + "\r\n";
const auto headers = d->proxy.headers();
if (!headers.contains(QHttpHeaders::WellKnownHeader::UserAgent))
data += "User-Agent: Mozilla/5.0\r\n";
for (qsizetype i = 0; i < headers.size(); ++i) {
const auto name = headers.nameAt(i);
data += QByteArrayView(name.data(), name.size()) + ": "
+ headers.valueAt(i) + "\r\n";
}
QAuthenticatorPrivate *priv = QAuthenticatorPrivate::getPrivate(d->authenticator);
//qDebug() << "slotSocketConnected: priv=" << priv << (priv ? (int)priv->method : -1);
if (priv && priv->method != QAuthenticatorPrivate::None) {
d->credentialsSent = true;
data += "Proxy-Authorization: " + priv->calculateResponse(method, path, d->proxy.hostName());
data += "\r\n";
}
data += "\r\n";
// qDebug() << ">>>>>>>> sending request" << this;
// qDebug() << data;
// qDebug(">>>>>>>");
d->socket->write(data);
d->state = ConnectSent;
}
void QHttpSocketEngine::slotSocketDisconnected()
{
}
void QHttpSocketEngine::slotSocketReadNotification()
{
Q_D(QHttpSocketEngine);
if (d->state != Connected && d->socket->bytesAvailable() == 0)
return;
if (d->state == Connected) {
// Forward as a read notification.
if (d->readNotificationEnabled)
emitReadNotification();
return;
}
if (d->state == ConnectSent) {
d->reply->d_func()->state = QHttpNetworkReplyPrivate::NothingDoneState;
d->state = ReadResponseHeader;
}
if (d->state == ReadResponseHeader) {
bool ok = readHttpHeader();
if (!ok) {
// protocol error, this isn't HTTP
d->socket->close();
setState(QAbstractSocket::UnconnectedState);
setError(QAbstractSocket::ProxyProtocolError, tr("Did not receive HTTP response from proxy"));
emitConnectionNotification();
return;
}
if (d->state == ReadResponseHeader)
return; // readHttpHeader() was not done yet, need to wait for more header data
}
if (d->state == ReadResponseContent) {
qint64 skipped = d->socket->skip(d->pendingResponseData);
if (skipped == -1) {
d->socket->disconnectFromHost();
emitWriteNotification();
return;
}
d->pendingResponseData -= uint(skipped);
if (d->pendingResponseData > 0)
return;
if (d->reply->statusCode() == 407)
d->state = SendAuthentication;
}
int statusCode = d->reply->statusCode();
QAuthenticatorPrivate *priv = nullptr;
if (statusCode == 200) {
d->state = Connected;
setLocalAddress(d->socket->localAddress());
setLocalPort(d->socket->localPort());
d->inboundStreamCount = d->outboundStreamCount = 1;
setState(QAbstractSocket::ConnectedState);
d->authenticator.detach();
priv = QAuthenticatorPrivate::getPrivate(d->authenticator);
priv->hasFailed = false;
} else if (statusCode == 407) {
if (d->authenticator.isNull())
d->authenticator.detach();
priv = QAuthenticatorPrivate::getPrivate(d->authenticator);
const auto headers = d->reply->header();
priv->parseHttpResponse(headers, true);
if (priv->phase == QAuthenticatorPrivate::Invalid) {
// problem parsing the reply
d->socket->close();
setState(QAbstractSocket::UnconnectedState);
setError(QAbstractSocket::ProxyProtocolError, tr("Error parsing authentication request from proxy"));
emitConnectionNotification();
return;
}
if (priv->phase == QAuthenticatorPrivate::Done
|| (priv->phase == QAuthenticatorPrivate::Start
&& (priv->method == QAuthenticatorPrivate::Ntlm
|| priv->method == QAuthenticatorPrivate::Negotiate))) {
if (priv->phase == QAuthenticatorPrivate::Start)
priv->phase = QAuthenticatorPrivate::Phase1;
bool credentialsWasSent = d->credentialsSent;
if (d->credentialsSent) {
// Remember that (e.g.) NTLM is two-phase, so only reset when the authentication is
// not currently in progress. 407 response again means the provided
// username/password were invalid.
d->authenticator.detach();
priv = QAuthenticatorPrivate::getPrivate(d->authenticator);
priv->hasFailed = true;
d->credentialsSent = false;
priv->phase = QAuthenticatorPrivate::Done;
}
if ((priv->method != QAuthenticatorPrivate::Ntlm
&& priv->method != QAuthenticatorPrivate::Negotiate)
|| credentialsWasSent)
proxyAuthenticationRequired(d->proxy, &d->authenticator);
}
bool willClose;
QByteArray proxyConnectionHeader = d->reply->headerField("Proxy-Connection");
// Although most proxies use the unofficial Proxy-Connection header, the Connection header
// from http spec is also allowed.
if (proxyConnectionHeader.isEmpty())
proxyConnectionHeader = d->reply->headerField("Connection");
if (proxyConnectionHeader.compare("close", Qt::CaseInsensitive) == 0) {
willClose = true;
} else if (proxyConnectionHeader.compare("keep-alive", Qt::CaseInsensitive) == 0) {
willClose = false;
} else {
// no Proxy-Connection header, so use the default
// HTTP 1.1's default behaviour is to keep persistent connections
// HTTP 1.0 or earlier, so we expect the server to close
willClose = (d->reply->majorVersion() * 0x100 + d->reply->minorVersion()) <= 0x0100;
}
if (willClose) {
// the server will disconnect, so let's avoid receiving an error
// especially since the signal below may trigger a new event loop
d->socket->disconnectFromHost();
d->socket->readAll();
//We're done with the reply and need to reset it for the next connection
delete d->reply;
d->reply = new QHttpNetworkReply(QUrl(), this);
}
if (priv->phase == QAuthenticatorPrivate::Done) {
d->authenticator = QAuthenticator();
setError(QAbstractSocket::ProxyAuthenticationRequiredError, tr("Authentication required"));
d->socket->disconnectFromHost();
} else {
// close the connection if it isn't already and reconnect using the chosen authentication method
d->state = SendAuthentication;
if (willClose) {
d->socket->connectToHost(d->proxy.hostName(), d->proxy.port());
} else {
// send the HTTP CONNECT again
slotSocketConnected();
}
return;
}
} else {
d->socket->close();
setState(QAbstractSocket::UnconnectedState);
if (statusCode == 403 || statusCode == 405) {
// 403 Forbidden
// 405 Method Not Allowed
setError(QAbstractSocket::SocketAccessError, tr("Proxy denied connection"));
} else if (statusCode == 404) {
// 404 Not Found: host lookup error
setError(QAbstractSocket::HostNotFoundError, QAbstractSocket::tr("Host not found"));
} else if (statusCode == 503) {
// 503 Service Unavailable: Connection Refused
setError(QAbstractSocket::ConnectionRefusedError, QAbstractSocket::tr("Connection refused"));
} else {
// Some other reply
//qWarning("UNEXPECTED RESPONSE: [%s]", responseHeader.toString().toLatin1().data());
setError(QAbstractSocket::ProxyProtocolError, tr("Error communicating with HTTP proxy"));
}
}
// The handshake is done; notify that we're connected (or failed to connect)
emitConnectionNotification();
}
bool QHttpSocketEngine::readHttpHeader()
{
Q_D(QHttpSocketEngine);
if (d->state != ReadResponseHeader)
return false;
bool ok = true;
if (d->reply->d_func()->state == QHttpNetworkReplyPrivate::NothingDoneState) {
// do not keep old content sizes, status etc. around
d->reply->d_func()->clearHttpLayerInformation();
d->reply->d_func()->state = QHttpNetworkReplyPrivate::ReadingStatusState;
}
if (d->reply->d_func()->state == QHttpNetworkReplyPrivate::ReadingStatusState) {
ok = d->reply->d_func()->readStatus(d->socket) != -1;
if (ok && d->reply->d_func()->state == QHttpNetworkReplyPrivate::ReadingStatusState)
return true; //Not done parsing headers yet, wait for more data
}
if (ok && d->reply->d_func()->state == QHttpNetworkReplyPrivate::ReadingHeaderState) {
ok = d->reply->d_func()->readHeader(d->socket) != -1;
if (ok && d->reply->d_func()->state == QHttpNetworkReplyPrivate::ReadingHeaderState)
return true; //Not done parsing headers yet, wait for more data
}
if (ok) {
bool contentLengthOk;
int contentLength = d->reply->headerField("Content-Length").toInt(&contentLengthOk);
if (contentLengthOk && contentLength > 0)
d->pendingResponseData = contentLength;
d->state = ReadResponseContent; // we are done reading the header
}
return ok;
}
void QHttpSocketEngine::slotSocketBytesWritten()
{
Q_D(QHttpSocketEngine);
if (d->state == Connected && d->writeNotificationEnabled)
emitWriteNotification();
}
void QHttpSocketEngine::slotSocketError(QAbstractSocket::SocketError error)
{
Q_D(QHttpSocketEngine);
if (d->state != Connected) {
// we are in proxy handshaking stages
if (error == QAbstractSocket::HostNotFoundError)
setError(QAbstractSocket::ProxyNotFoundError, tr("Proxy server not found"));
else if (error == QAbstractSocket::ConnectionRefusedError)
setError(QAbstractSocket::ProxyConnectionRefusedError, tr("Proxy connection refused"));
else if (error == QAbstractSocket::SocketTimeoutError)
setError(QAbstractSocket::ProxyConnectionTimeoutError, tr("Proxy server connection timed out"));
else if (error == QAbstractSocket::RemoteHostClosedError)
setError(QAbstractSocket::ProxyConnectionClosedError, tr("Proxy connection closed prematurely"));
else
setError(error, d->socket->errorString());
emitConnectionNotification();
return;
}
// We're connected
if (error == QAbstractSocket::SocketTimeoutError)
return; // ignore this error
d->state = None;
setError(error, d->socket->errorString());
if (error != QAbstractSocket::RemoteHostClosedError)
qDebug() << "QHttpSocketEngine::slotSocketError: got weird error =" << error;
//read notification needs to always be emitted, otherwise the higher layer doesn't get the disconnected signal
emitReadNotification();
}
void QHttpSocketEngine::slotSocketStateChanged(QAbstractSocket::SocketState state)
{
Q_UNUSED(state);
}
void QHttpSocketEngine::emitPendingReadNotification()
{
Q_D(QHttpSocketEngine);
d->readNotificationPending = false;
if (d->readNotificationEnabled)
readNotification();
}
void QHttpSocketEngine::emitPendingWriteNotification()
{
Q_D(QHttpSocketEngine);
d->writeNotificationPending = false;
if (d->writeNotificationEnabled)
writeNotification();
}
void QHttpSocketEngine::emitPendingConnectionNotification()
{
Q_D(QHttpSocketEngine);
d->connectionNotificationPending = false;
connectionNotification();
}
void QHttpSocketEngine::emitReadNotification()
{
Q_D(QHttpSocketEngine);
// if there is a connection notification pending we have to emit the readNotification
// in case there is connection error. This is only needed for Windows, but it does not
// hurt in other cases.
if ((d->readNotificationEnabled && !d->readNotificationPending) || d->connectionNotificationPending) {
d->readNotificationPending = true;
QMetaObject::invokeMethod(this, "emitPendingReadNotification", Qt::QueuedConnection);
}
}
void QHttpSocketEngine::emitWriteNotification()
{
Q_D(QHttpSocketEngine);
if (d->writeNotificationEnabled && !d->writeNotificationPending) {
d->writeNotificationPending = true;
QMetaObject::invokeMethod(this, "emitPendingWriteNotification", Qt::QueuedConnection);
}
}
void QHttpSocketEngine::emitConnectionNotification()
{
Q_D(QHttpSocketEngine);
if (!d->connectionNotificationPending) {
d->connectionNotificationPending = true;
QMetaObject::invokeMethod(this, "emitPendingConnectionNotification", Qt::QueuedConnection);
}
}
QHttpSocketEnginePrivate::QHttpSocketEnginePrivate()
: readNotificationEnabled(false)
, writeNotificationEnabled(false)
, exceptNotificationEnabled(false)
, readNotificationPending(false)
, writeNotificationPending(false)
, connectionNotificationPending(false)
, credentialsSent(false)
, pendingResponseData(0)
{
socket = nullptr;
reply = nullptr;
state = QHttpSocketEngine::None;
}
QHttpSocketEnginePrivate::~QHttpSocketEnginePrivate()
{
}
QAbstractSocketEngine *QHttpSocketEngineHandler::createSocketEngine(QAbstractSocket::SocketType socketType,
const QNetworkProxy &proxy,
QObject *parent)
{
if (socketType != QAbstractSocket::TcpSocket)
return nullptr;
// proxy type must have been resolved by now
if (proxy.type() != QNetworkProxy::HttpProxy)
return nullptr;
// we only accept active sockets
if (!qobject_cast<QAbstractSocket *>(parent))
return nullptr;
QHttpSocketEngine *engine = new QHttpSocketEngine(parent);
engine->setProxy(proxy);
return engine;
}
QAbstractSocketEngine *QHttpSocketEngineHandler::createSocketEngine(qintptr, QObject *)
{
return nullptr;
}
QT_END_NAMESPACE
#endif // !QT_NO_NETWORKPROXY
#include "moc_qhttpsocketengine_p.cpp"