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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtNetwork module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain
** additional rights. These rights are described in the Nokia Qt LGPL
** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://qt.nokia.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qhttpnetworkconnection_p.h"
#include "qhttpnetworkconnectionchannel_p.h"
#include "private/qnoncontiguousbytedevice_p.h"
#include <private/qnetworkrequest_p.h>
#include <private/qobject_p.h>
#include <private/qauthenticator_p.h>
#include <qnetworkproxy.h>
#include <qauthenticator.h>
#include <qbuffer.h>
#include <qpair.h>
#include <qhttp.h>
#include <qdebug.h>
#ifndef QT_NO_HTTP
#ifndef QT_NO_OPENSSL
# include <QtNetwork/qsslkey.h>
# include <QtNetwork/qsslcipher.h>
# include <QtNetwork/qsslconfiguration.h>
#endif
QT_BEGIN_NAMESPACE
const int QHttpNetworkConnectionPrivate::channelCount = 6;
QHttpNetworkConnectionPrivate::QHttpNetworkConnectionPrivate(const QString &hostName, quint16 port, bool encrypt)
: hostName(hostName), port(port), encrypt(encrypt),
pendingAuthSignal(false), pendingProxyAuthSignal(false)
#ifndef QT_NO_NETWORKPROXY
, networkProxy(QNetworkProxy::NoProxy)
#endif
{
channels = new QHttpNetworkConnectionChannel[channelCount];
}
QHttpNetworkConnectionPrivate::~QHttpNetworkConnectionPrivate()
{
for (int i = 0; i < channelCount; ++i) {
if (channels[i].socket) {
channels[i].socket->close();
delete channels[i].socket;
}
}
delete []channels;
}
void QHttpNetworkConnectionPrivate::init()
{
for (int i = 0; i < channelCount; i++) {
channels[i].setConnection(this->q_func());
channels[i].init();
}
}
int QHttpNetworkConnectionPrivate::indexOf(QAbstractSocket *socket) const
{
for (int i = 0; i < channelCount; ++i)
if (channels[i].socket == socket)
return i;
qFatal("Called with unknown socket object.");
return 0;
}
bool QHttpNetworkConnectionPrivate::isSocketBusy(QAbstractSocket *socket) const
{
int i = indexOf(socket);
return (channels[i].state & QHttpNetworkConnectionChannel::BusyState);
}
bool QHttpNetworkConnectionPrivate::isSocketWriting(QAbstractSocket *socket) const
{
int i = indexOf(socket);
return (i != -1 && (channels[i].state & QHttpNetworkConnectionChannel::WritingState));
}
bool QHttpNetworkConnectionPrivate::isSocketWaiting(QAbstractSocket *socket) const
{
int i = indexOf(socket);
return (i != -1 && (channels[i].state & QHttpNetworkConnectionChannel::WaitingState));
}
bool QHttpNetworkConnectionPrivate::isSocketReading(QAbstractSocket *socket) const
{
int i = indexOf(socket);
return (i != -1 && (channels[i].state & QHttpNetworkConnectionChannel::ReadingState));
}
qint64 QHttpNetworkConnectionPrivate::uncompressedBytesAvailable(const QHttpNetworkReply &reply) const
{
return reply.d_func()->responseData.byteAmount();
}
qint64 QHttpNetworkConnectionPrivate::uncompressedBytesAvailableNextBlock(const QHttpNetworkReply &reply) const
{
return reply.d_func()->responseData.sizeNextBlock();
}
qint64 QHttpNetworkConnectionPrivate::compressedBytesAvailable(const QHttpNetworkReply &reply) const
{
return reply.d_func()->compressedData.size();
}
void QHttpNetworkConnectionPrivate::eraseData(QHttpNetworkReply *reply)
{
reply->d_func()->compressedData.clear();
reply->d_func()->responseData.clear();
}
void QHttpNetworkConnectionPrivate::prepareRequest(HttpMessagePair &messagePair)
{
QHttpNetworkRequest &request = messagePair.first;
QHttpNetworkReply *reply = messagePair.second;
// add missing fields for the request
QByteArray value;
// check if Content-Length is provided
QNonContiguousByteDevice* uploadByteDevice = request.uploadByteDevice();
if (uploadByteDevice) {
if (request.contentLength() != -1 && uploadByteDevice->size() != -1) {
// both values known, take the smaller one.
request.setContentLength(qMin(uploadByteDevice->size(), request.contentLength()));
} else if (request.contentLength() == -1 && uploadByteDevice->size() != -1) {
// content length not supplied by user, but the upload device knows it
request.setContentLength(uploadByteDevice->size());
} else if (request.contentLength() != -1 && uploadByteDevice->size() == -1) {
// everything OK, the user supplied us the contentLength
} else if (request.contentLength() == -1 && uploadByteDevice->size() == -1) {
qFatal("QHttpNetworkConnectionPrivate: Neither content-length nor upload device size were given");
}
}
// set the Connection/Proxy-Connection: Keep-Alive headers
#ifndef QT_NO_NETWORKPROXY
if (networkProxy.type() == QNetworkProxy::HttpCachingProxy) {
value = request.headerField("proxy-connection");
if (value.isEmpty())
request.setHeaderField("Proxy-Connection", "Keep-Alive");
} else {
#endif
value = request.headerField("connection");
if (value.isEmpty())
request.setHeaderField("Connection", "Keep-Alive");
#ifndef QT_NO_NETWORKPROXY
}
#endif
// If the request had a accept-encoding set, we better not mess
// with it. If it was not set, we announce that we understand gzip
// and remember this fact in request.d->autoDecompress so that
// we can later decompress the HTTP reply if it has such an
// encoding.
value = request.headerField("accept-encoding");
if (value.isEmpty()) {
#ifndef QT_NO_COMPRESS
request.setHeaderField("Accept-Encoding", "gzip");
request.d->autoDecompress = true;
#else
// if zlib is not available set this to false always
request.d->autoDecompress = false;
#endif
}
// set the User Agent
value = request.headerField("user-agent");
if (value.isEmpty())
request.setHeaderField("User-Agent", "Mozilla/5.0");
// set the host
value = request.headerField("host");
if (value.isEmpty()) {
QByteArray host = QUrl::toAce(hostName);
int port = request.url().port();
if (port != -1) {
host += ':';
host += QByteArray::number(port);
}
request.setHeaderField("Host", host);
}
reply->d_func()->requestIsPrepared = true;
}
bool QHttpNetworkConnectionPrivate::ensureConnection(QAbstractSocket *socket)
{
// make sure that this socket is in a connected state, if not initiate
// connection to the host.
if (socket->state() != QAbstractSocket::ConnectedState) {
// connect to the host if not already connected.
int index = indexOf(socket);
// resend this request after we receive the disconnected signal
if (socket->state() == QAbstractSocket::ClosingState) {
channels[index].resendCurrent = true;
return false;
}
channels[index].state = QHttpNetworkConnectionChannel::ConnectingState;
channels[index].pendingEncrypt = encrypt;
// This workaround is needed since we use QAuthenticator for NTLM authentication. The "phase == Done"
// is the usual criteria for emitting authentication signals. The "phase" is set to "Done" when the
// last header for Authorization is generated by the QAuthenticator. Basic & Digest logic does not
// check the "phase" for generating the Authorization header. NTLM authentication is a two stage
// process & needs the "phase". To make sure the QAuthenticator uses the current username/password
// the phase is reset to Start.
QAuthenticatorPrivate *priv = QAuthenticatorPrivate::getPrivate(channels[index].authenticator);
if (priv && priv->phase == QAuthenticatorPrivate::Done)
priv->phase = QAuthenticatorPrivate::Start;
priv = QAuthenticatorPrivate::getPrivate(channels[index].proxyAuthenticator);
if (priv && priv->phase == QAuthenticatorPrivate::Done)
priv->phase = QAuthenticatorPrivate::Start;
QString connectHost = hostName;
qint16 connectPort = port;
#ifndef QT_NO_NETWORKPROXY
// HTTPS always use transparent proxy.
if (networkProxy.type() != QNetworkProxy::NoProxy && !encrypt) {
connectHost = networkProxy.hostName();
connectPort = networkProxy.port();
}
#endif
if (encrypt) {
#ifndef QT_NO_OPENSSL
QSslSocket *sslSocket = qobject_cast<QSslSocket*>(socket);
sslSocket->connectToHostEncrypted(connectHost, connectPort);
if (channels[index].ignoreAllSslErrors)
sslSocket->ignoreSslErrors();
sslSocket->ignoreSslErrors(channels[index].ignoreSslErrorsList);
#else
emitReplyError(socket, channels[index].reply, QNetworkReply::ProtocolUnknownError);
#endif
} else {
socket->connectToHost(connectHost, connectPort);
}
return false;
}
return true;
}
bool QHttpNetworkConnectionPrivate::sendRequest(QAbstractSocket *socket)
{
Q_Q(QHttpNetworkConnection);
int i = indexOf(socket);
switch (channels[i].state) {
case QHttpNetworkConnectionChannel::IdleState: { // write the header
if (!ensureConnection(socket)) {
// wait for the connection (and encryption) to be done
// sendRequest will be called again from either
// _q_connected or _q_encrypted
return false;
}
channels[i].written = 0; // excluding the header
channels[i].bytesTotal = 0;
if (channels[i].reply) {
channels[i].reply->d_func()->clear();
channels[i].reply->d_func()->connection = q;
channels[i].reply->d_func()->autoDecompress = channels[i].request.d->autoDecompress;
}
channels[i].state = QHttpNetworkConnectionChannel::WritingState;
channels[i].pendingEncrypt = false;
// if the url contains authentication parameters, use the new ones
// both channels will use the new authentication parameters
if (!channels[i].request.url().userInfo().isEmpty()) {
QUrl url = channels[i].request.url();
QAuthenticator &auth = channels[i].authenticator;
if (url.userName() != auth.user()
|| (!url.password().isEmpty() && url.password() != auth.password())) {
auth.setUser(url.userName());
auth.setPassword(url.password());
copyCredentials(i, &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());
channels[i].request.setUrl(url);
}
createAuthorization(socket, channels[i].request);
#ifndef QT_NO_NETWORKPROXY
QByteArray header = QHttpNetworkRequestPrivate::header(channels[i].request,
(networkProxy.type() != QNetworkProxy::NoProxy));
#else
QByteArray header = QHttpNetworkRequestPrivate::header(channels[i].request,
false);
#endif
socket->write(header);
QNonContiguousByteDevice* uploadByteDevice = channels[i].request.uploadByteDevice();
if (uploadByteDevice) {
// connect the signals so this function gets called again
QObject::connect(uploadByteDevice, SIGNAL(readyRead()), &channels[i], SLOT(_q_uploadDataReadyRead()));
channels[i].bytesTotal = channels[i].request.contentLength();
} else {
socket->flush(); // ### Remove this when pipelining is implemented. We want less TCP packets!
channels[i].state = QHttpNetworkConnectionChannel::WaitingState;
break;
}
// write the initial chunk together with the headers
// fall through
}
case QHttpNetworkConnectionChannel::WritingState:
{
// write the data
QNonContiguousByteDevice* uploadByteDevice = channels[i].request.uploadByteDevice();
if (!uploadByteDevice || channels[i].bytesTotal == channels[i].written) {
if (uploadByteDevice)
emit channels[i].reply->dataSendProgress(channels[i].written, channels[i].bytesTotal);
channels[i].state = QHttpNetworkConnectionChannel::WaitingState; // now wait for response
sendRequest(socket);
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 && channels[i].bytesTotal != channels[i].written)
#else
while (socket->bytesToWrite() <= socketBufferFill
&& channels[i].bytesTotal != channels[i].written)
#endif
{
// get pointer to upload data
qint64 currentReadSize;
qint64 desiredReadSize = qMin(socketWriteMaxSize, channels[i].bytesTotal - channels[i].written);
const char *readPointer = uploadByteDevice->readPointer(desiredReadSize, currentReadSize);
if (currentReadSize == -1) {
// premature eof happened
emitReplyError(socket, channels[i].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
emitReplyError(socket, channels[i].reply, QNetworkReply::UnknownNetworkError);
return false;
} else {
channels[i].written += currentWriteSize;
uploadByteDevice->advanceReadPointer(currentWriteSize);
emit channels[i].reply->dataSendProgress(channels[i].written, channels[i].bytesTotal);
if (channels[i].written == channels[i].bytesTotal) {
// make sure this function is called once again
channels[i].state = QHttpNetworkConnectionChannel::WaitingState;
sendRequest(socket);
break;
}
}
}
}
break;
}
case QHttpNetworkConnectionChannel::WaitingState:
{
QNonContiguousByteDevice* uploadByteDevice = channels[i].request.uploadByteDevice();
if (uploadByteDevice) {
QObject::disconnect(uploadByteDevice, SIGNAL(readyRead()), &channels[i], SLOT(_q_uploadDataReadyRead()));
}
// 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
receiveReply(socket, channels[i].reply);
break;
}
case QHttpNetworkConnectionChannel::ReadingState:
case QHttpNetworkConnectionChannel::Wait4AuthState:
// ignore _q_bytesWritten in these states
// fall through
default:
break;
}
return true;
}
bool QHttpNetworkConnectionPrivate::shouldEmitSignals(QHttpNetworkReply *reply)
{
// for 401 & 407 don't emit the data signals. Content along with these
// responses are send only if the authentication fails.
return (reply && reply->d_func()->statusCode != 401 && reply->d_func()->statusCode != 407);
}
bool QHttpNetworkConnectionPrivate::expectContent(QHttpNetworkReply *reply)
{
// check whether we can expect content after the headers (rfc 2616, sec4.4)
if (!reply)
return false;
if ((reply->d_func()->statusCode >= 100 && reply->d_func()->statusCode < 200)
|| reply->d_func()->statusCode == 204 || reply->d_func()->statusCode == 304)
return false;
if (reply->d_func()->request.operation() == QHttpNetworkRequest::Head)
return !shouldEmitSignals(reply);
if (reply->d_func()->contentLength() == 0)
return false;
return true;
}
void QHttpNetworkConnectionPrivate::emitReplyError(QAbstractSocket *socket,
QHttpNetworkReply *reply,
QNetworkReply::NetworkError errorCode)
{
Q_Q(QHttpNetworkConnection);
if (socket && reply) {
// this error matters only to this reply
reply->d_func()->errorString = errorDetail(errorCode, socket);
emit reply->finishedWithError(errorCode, reply->d_func()->errorString);
int i = indexOf(socket);
// remove the corrupt data if any
eraseData(channels[i].reply);
closeChannel(i);
// send the next request
QMetaObject::invokeMethod(q, "_q_startNextRequest", Qt::QueuedConnection);
}
}
#ifndef QT_NO_COMPRESS
bool QHttpNetworkConnectionPrivate::expand(QAbstractSocket *socket, QHttpNetworkReply *reply, bool dataComplete)
{
Q_ASSERT(socket);
Q_ASSERT(reply);
qint64 total = compressedBytesAvailable(*reply);
if (total >= CHUNK || dataComplete) {
int i = indexOf(socket);
// uncompress the data
QByteArray content, inflated;
content = reply->d_func()->compressedData;
reply->d_func()->compressedData.clear();
int ret = Z_OK;
if (content.size())
ret = reply->d_func()->gunzipBodyPartially(content, inflated);
int retCheck = (dataComplete) ? Z_STREAM_END : Z_OK;
if (ret >= retCheck) {
if (inflated.size()) {
reply->d_func()->totalProgress += inflated.size();
reply->d_func()->appendUncompressedReplyData(inflated);
if (shouldEmitSignals(reply)) {
// important: At the point of this readyRead(), inflated must be cleared,
// else implicit sharing will trigger memcpy when the user is reading data!
emit reply->readyRead();
// make sure that the reply is valid
if (channels[i].reply != reply)
return true;
emit reply->dataReadProgress(reply->d_func()->totalProgress, 0);
// make sure that the reply is valid
if (channels[i].reply != reply)
return true;
}
}
} else {
emitReplyError(socket, reply, QNetworkReply::ProtocolFailure);
return false;
}
}
return true;
}
#endif
void QHttpNetworkConnectionPrivate::receiveReply(QAbstractSocket *socket, QHttpNetworkReply *reply)
{
Q_ASSERT(socket);
Q_Q(QHttpNetworkConnection);
qint64 bytes = 0;
QAbstractSocket::SocketState state = socket->state();
int i = indexOf(socket);
// connection might be closed to signal the end of data
if (state == QAbstractSocket::UnconnectedState) {
if (!socket->bytesAvailable()) {
if (reply && reply->d_func()->state == QHttpNetworkReplyPrivate::ReadingDataState) {
reply->d_func()->state = QHttpNetworkReplyPrivate::AllDoneState;
channels[i].state = QHttpNetworkConnectionChannel::IdleState;
allDone(socket, reply);
} else {
// try to reconnect/resend before sending an error.
if (channels[i].reconnectAttempts-- > 0) {
resendCurrentRequest(socket);
} else if (reply) {
reply->d_func()->errorString = errorDetail(QNetworkReply::RemoteHostClosedError, socket);
emit reply->finishedWithError(QNetworkReply::RemoteHostClosedError, reply->d_func()->errorString);
QMetaObject::invokeMethod(q, "_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: {
qint64 statusBytes = reply->d_func()->readStatus(socket);
if (statusBytes == -1) {
// error reading the status, close the socket and emit error
socket->close();
reply->d_func()->errorString = errorDetail(QNetworkReply::ProtocolFailure, socket);
emit reply->finishedWithError(QNetworkReply::ProtocolFailure, reply->d_func()->errorString);
QMetaObject::invokeMethod(q, "_q_startNextRequest", Qt::QueuedConnection);
break;
}
bytes += statusBytes;
channels[i].lastStatus = reply->d_func()->statusCode;
break;
}
case QHttpNetworkReplyPrivate::ReadingHeaderState:
bytes += reply->d_func()->readHeader(socket);
if (reply->d_func()->state == QHttpNetworkReplyPrivate::ReadingDataState) {
if (reply->d_func()->isGzipped() && reply->d_func()->autoDecompress) {
// remove the Content-Length from header
reply->d_func()->removeAutoDecompressHeader();
} else {
reply->d_func()->autoDecompress = false;
}
if (reply && reply->d_func()->statusCode == 100) {
reply->d_func()->state = QHttpNetworkReplyPrivate::ReadingStatusState;
break; // ignore
}
if (shouldEmitSignals(reply))
emit reply->headerChanged();
if (!expectContent(reply)) {
reply->d_func()->state = QHttpNetworkReplyPrivate::AllDoneState;
channels[i].state = QHttpNetworkConnectionChannel::IdleState;
allDone(socket, reply);
return;
}
}
break;
case QHttpNetworkReplyPrivate::ReadingDataState: {
if (!reply->d_func()->isChunked() && !reply->d_func()->autoDecompress
&& reply->d_func()->bodyLength > 0) {
// bulk files like images should fulfill these properties and
// we can therefore save on memory copying
bytes = reply->d_func()->readBodyFast(socket, &reply->d_func()->responseData);
reply->d_func()->totalProgress += bytes;
if (shouldEmitSignals(reply)) {
emit reply->readyRead();
// make sure that the reply is valid
if (channels[i].reply != reply)
return;
emit reply->dataReadProgress(reply->d_func()->totalProgress, reply->d_func()->bodyLength);
// make sure that the reply is valid
if (channels[i].reply != reply)
return;
}
}
else
{
// use the traditional slower reading (for compressed encoding, chunked encoding,
// no content-length etc)
QByteDataBuffer byteDatas;
bytes = reply->d_func()->readBody(socket, &byteDatas);
if (bytes) {
if (reply->d_func()->autoDecompress)
reply->d_func()->appendCompressedReplyData(byteDatas);
else
reply->d_func()->appendUncompressedReplyData(byteDatas);
if (!reply->d_func()->autoDecompress) {
reply->d_func()->totalProgress += bytes;
if (shouldEmitSignals(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 (channels[i].reply != reply)
return;
emit reply->dataReadProgress(reply->d_func()->totalProgress, reply->d_func()->bodyLength);
// make sure that the reply is valid
if (channels[i].reply != reply)
return;
}
}
#ifndef QT_NO_COMPRESS
else if (!expand(socket, reply, false)) { // expand a chunk if possible
return; // ### expand failed
}
#endif
}
}
if (reply->d_func()->state == QHttpNetworkReplyPrivate::ReadingDataState)
break;
// everything done, fall through
}
case QHttpNetworkReplyPrivate::AllDoneState:
channels[i].state = QHttpNetworkConnectionChannel::IdleState;
allDone(socket, reply);
break;
default:
break;
}
}
}
void QHttpNetworkConnectionPrivate::allDone(QAbstractSocket *socket, QHttpNetworkReply *reply)
{
#ifndef QT_NO_COMPRESS
// expand the whole data.
if (expectContent(reply) && reply->d_func()->autoDecompress && !reply->d_func()->streamEnd)
expand(socket, reply, true); // ### if expand returns false, its an error
#endif
// while handling 401 & 407, we might reset the status code, so save this.
bool emitFinished = shouldEmitSignals(reply);
handleStatus(socket, reply);
// ### at this point there should be no more data on the socket
// close if server requested
int i = indexOf(socket);
if (reply->d_func()->connectionCloseEnabled())
closeChannel(i);
// queue the finished signal, this is required since we might send new requests from
// slot connected to it. The socket will not fire readyRead signal, if we are already
// in the slot connected to readyRead
if (emitFinished)
QMetaObject::invokeMethod(reply, "finished", Qt::QueuedConnection);
// reset the reconnection attempts after we receive a complete reply.
// in case of failures, each channel will attempt two reconnects before emitting error.
channels[i].reconnectAttempts = 2;
}
void QHttpNetworkConnectionPrivate::handleStatus(QAbstractSocket *socket, QHttpNetworkReply *reply)
{
Q_ASSERT(socket);
Q_ASSERT(reply);
Q_Q(QHttpNetworkConnection);
int statusCode = reply->statusCode();
bool resend = false;
switch (statusCode) {
case 401:
case 407:
if (handleAuthenticateChallenge(socket, reply, (statusCode == 407), resend)) {
if (resend) {
int i = indexOf(socket);
QNonContiguousByteDevice* uploadByteDevice = channels[i].request.uploadByteDevice();
if (uploadByteDevice) {
if (uploadByteDevice->reset()) {
channels[i].written = 0;
} else {
emitReplyError(socket, reply, QNetworkReply::ContentReSendError);
break;
}
}
eraseData(reply);
// also use async _q_startNextRequest so we dont break with closed
// proxy or server connections..
channels[i].resendCurrent = true;
QMetaObject::invokeMethod(q, "_q_startNextRequest", Qt::QueuedConnection);
}
} else {
int i = indexOf(socket);
emit channels[i].reply->headerChanged();
emit channels[i].reply->readyRead();
QNetworkReply::NetworkError errorCode = (statusCode == 407)
? QNetworkReply::ProxyAuthenticationRequiredError
: QNetworkReply::AuthenticationRequiredError;
reply->d_func()->errorString = errorDetail(errorCode, socket);
emit q->error(errorCode, reply->d_func()->errorString);
emit channels[i].reply->finished();
}
break;
default:
QMetaObject::invokeMethod(q, "_q_startNextRequest", Qt::QueuedConnection);
}
}
void QHttpNetworkConnectionPrivate::copyCredentials(int fromChannel, QAuthenticator *auth, bool isProxy)
{
Q_ASSERT(auth);
// select another channel
QAuthenticator* otherAuth = 0;
for (int i = 0; i < channelCount; ++i) {
if (i == fromChannel)
continue;
if (isProxy)
otherAuth = &channels[i].proxyAuthenticator;
else
otherAuth = &channels[i].authenticator;
// if the credentials are different, copy them
if (otherAuth->user().compare(auth->user()))
otherAuth->setUser(auth->user());
if (otherAuth->password().compare(auth->password()))
otherAuth->setPassword(auth->password());
}
}
bool QHttpNetworkConnectionPrivate::handleAuthenticateChallenge(QAbstractSocket *socket, QHttpNetworkReply *reply,
bool isProxy, bool &resend)
{
Q_ASSERT(socket);
Q_ASSERT(reply);
Q_Q(QHttpNetworkConnection);
resend = false;
//create the response header to be used with QAuthenticatorPrivate.
QHttpResponseHeader responseHeader;
QList<QPair<QByteArray, QByteArray> > fields = reply->header();
QList<QPair<QByteArray, QByteArray> >::const_iterator it = fields.constBegin();
while (it != fields.constEnd()) {
responseHeader.addValue(QString::fromLatin1(it->first), QString::fromUtf8(it->second));
it++;
}
//find out the type of authentication protocol requested.
QAuthenticatorPrivate::Method authMethod = reply->d_func()->authenticationMethod(isProxy);
if (authMethod != QAuthenticatorPrivate::None) {
int i = indexOf(socket);
//Use a single authenticator for all domains. ### change later to use domain/realm
QAuthenticator* auth = 0;
if (isProxy) {
auth = &channels[i].proxyAuthenticator;
channels[i].proxyAuthMehtod = authMethod;
} else {
auth = &channels[i].authenticator;
channels[i].authMehtod = authMethod;
}
//proceed with the authentication.
if (auth->isNull())
auth->detach();
QAuthenticatorPrivate *priv = QAuthenticatorPrivate::getPrivate(*auth);
priv->parseHttpResponse(responseHeader, isProxy);
if (priv->phase == QAuthenticatorPrivate::Done) {
if ((isProxy && pendingProxyAuthSignal) ||(!isProxy && pendingAuthSignal)) {
// drop the request
eraseData(channels[i].reply);
closeChannel(i);
channels[i].lastStatus = 0;
channels[i].state = QHttpNetworkConnectionChannel::Wait4AuthState;
return false;
}
// cannot use this socket until the slot returns
channels[i].state = QHttpNetworkConnectionChannel::WaitingState;
socket->blockSignals(true);
if (!isProxy) {
pendingAuthSignal = true;
emit q->authenticationRequired(reply->request(), auth, q);
pendingAuthSignal = false;
#ifndef QT_NO_NETWORKPROXY
} else {
pendingProxyAuthSignal = true;
emit q->proxyAuthenticationRequired(networkProxy, auth, q);
pendingProxyAuthSignal = false;
#endif
}
socket->blockSignals(false);
// socket free to use
channels[i].state = QHttpNetworkConnectionChannel::IdleState;
if (priv->phase != QAuthenticatorPrivate::Done) {
// send any pending requests
copyCredentials(i, auth, isProxy);
QMetaObject::invokeMethod(q, "_q_restartAuthPendingRequests", Qt::QueuedConnection);
}
}
// changing values in QAuthenticator will reset the 'phase'
if (priv->phase == QAuthenticatorPrivate::Done) {
// authentication is cancelled, send the current contents to the user.
emit channels[i].reply->headerChanged();
emit channels[i].reply->readyRead();
QNetworkReply::NetworkError errorCode =
isProxy
? QNetworkReply::ProxyAuthenticationRequiredError
: QNetworkReply::AuthenticationRequiredError;
reply->d_func()->errorString = errorDetail(errorCode, socket);
emit q->error(errorCode, reply->d_func()->errorString);
emit channels[i].reply->finished();
// ### at this point the reply could be deleted
socket->close();
// remove pending request on the other channels
for (int j = 0; j < channelCount; ++j) {
if (j != i && channels[j].state == QHttpNetworkConnectionChannel::Wait4AuthState)
channels[j].state = QHttpNetworkConnectionChannel::IdleState;
}
return true;
}
//resend the request
resend = true;
return true;
}
return false;
}
void QHttpNetworkConnectionPrivate::createAuthorization(QAbstractSocket *socket, QHttpNetworkRequest &request)
{
Q_ASSERT(socket);
int i = indexOf(socket);
if (channels[i].authMehtod != QAuthenticatorPrivate::None) {
if (!(channels[i].authMehtod == QAuthenticatorPrivate::Ntlm && channels[i].lastStatus != 401)) {
QAuthenticatorPrivate *priv = QAuthenticatorPrivate::getPrivate(channels[i].authenticator);
if (priv && priv->method != QAuthenticatorPrivate::None) {
QByteArray response = priv->calculateResponse(request.d->methodName(), request.d->uri(false));
request.setHeaderField("authorization", response);
}
}
}
if (channels[i].proxyAuthMehtod != QAuthenticatorPrivate::None) {
if (!(channels[i].proxyAuthMehtod == QAuthenticatorPrivate::Ntlm && channels[i].lastStatus != 407)) {
QAuthenticatorPrivate *priv = QAuthenticatorPrivate::getPrivate(channels[i].proxyAuthenticator);
if (priv && priv->method != QAuthenticatorPrivate::None) {
QByteArray response = priv->calculateResponse(request.d->methodName(), request.d->uri(false));
request.setHeaderField("proxy-authorization", response);
}
}
}
}
QHttpNetworkReply* QHttpNetworkConnectionPrivate::queueRequest(const QHttpNetworkRequest &request)
{
Q_Q(QHttpNetworkConnection);
// The reply component of the pair is created initially.
QHttpNetworkReply *reply = new QHttpNetworkReply(request.url());
reply->setRequest(request);
reply->d_func()->connection = q;
HttpMessagePair pair = qMakePair(request, reply);
switch (request.priority()) {
case QHttpNetworkRequest::HighPriority:
highPriorityQueue.prepend(pair);
break;
case QHttpNetworkRequest::NormalPriority:
case QHttpNetworkRequest::LowPriority:
lowPriorityQueue.prepend(pair);
break;
}
QMetaObject::invokeMethod(q, "_q_startNextRequest", Qt::QueuedConnection);
return reply;
}
void QHttpNetworkConnectionPrivate::unqueueAndSendRequest(QAbstractSocket *socket)
{
Q_ASSERT(socket);
int i = indexOf(socket);
if (!highPriorityQueue.isEmpty()) {
for (int j = highPriorityQueue.count() - 1; j >= 0; --j) {
HttpMessagePair &messagePair = highPriorityQueue[j];
if (!messagePair.second->d_func()->requestIsPrepared)
prepareRequest(messagePair);
channels[i].request = messagePair.first;
channels[i].reply = messagePair.second;
sendRequest(socket);
highPriorityQueue.removeAt(j);
return;
}
}
if (!lowPriorityQueue.isEmpty()) {
for (int j = lowPriorityQueue.count() - 1; j >= 0; --j) {
HttpMessagePair &messagePair = lowPriorityQueue[j];
if (!messagePair.second->d_func()->requestIsPrepared)
prepareRequest(messagePair);
channels[i].request = messagePair.first;
channels[i].reply = messagePair.second;
sendRequest(socket);
lowPriorityQueue.removeAt(j);
return;
}
}
}
void QHttpNetworkConnectionPrivate::closeChannel(int channel)
{
channels[channel].close();
}
void QHttpNetworkConnectionPrivate::resendCurrentRequest(QAbstractSocket *socket)
{
Q_Q(QHttpNetworkConnection);
Q_ASSERT(socket);
int i = indexOf(socket);
closeChannel(i);
channels[i].resendCurrent = true;
QMetaObject::invokeMethod(q, "_q_startNextRequest", Qt::QueuedConnection);
}
QString QHttpNetworkConnectionPrivate::errorDetail(QNetworkReply::NetworkError errorCode, QAbstractSocket* socket)
{
Q_ASSERT(socket);
QString errorString;
switch (errorCode) {
case QNetworkReply::HostNotFoundError:
errorString = QString::fromLatin1(QT_TRANSLATE_NOOP("QHttp", "Host %1 not found"))
.arg(socket->peerName());
break;
case QNetworkReply::ConnectionRefusedError:
errorString = QLatin1String(QT_TRANSLATE_NOOP("QHttp", "Connection refused"));
break;
case QNetworkReply::RemoteHostClosedError:
errorString = QLatin1String(QT_TRANSLATE_NOOP("QHttp", "Connection closed"));
break;
case QNetworkReply::TimeoutError:
errorString = QLatin1String(QT_TRANSLATE_NOOP("QHttp", "HTTP request failed"));
break;
case QNetworkReply::ProxyAuthenticationRequiredError:
errorString = QLatin1String(QT_TRANSLATE_NOOP("QHttp", "Proxy requires authentication"));
break;
case QNetworkReply::AuthenticationRequiredError:
errorString = QLatin1String(QT_TRANSLATE_NOOP("QHttp", "Host requires authentication"));
break;
case QNetworkReply::ProtocolFailure:
errorString = QLatin1String(QT_TRANSLATE_NOOP("QHttp", "Data corrupted"));
break;
case QNetworkReply::ProtocolUnknownError:
errorString = QLatin1String(QT_TRANSLATE_NOOP("QHttp", "Unknown protocol specified"));
break;
case QNetworkReply::SslHandshakeFailedError:
errorString = QLatin1String(QT_TRANSLATE_NOOP("QHttp", "SSL handshake failed"));
break;
default:
// all other errors are treated as QNetworkReply::UnknownNetworkError
errorString = QLatin1String(QT_TRANSLATE_NOOP("QHttp", "HTTP request failed"));
break;
}
return errorString;
}
void QHttpNetworkConnectionPrivate::removeReply(QHttpNetworkReply *reply)
{
Q_Q(QHttpNetworkConnection);
// remove the from active list.
for (int i = 0; i < channelCount; ++i) {
if (channels[i].reply == reply) {
channels[i].reply = 0;
if (reply->d_func()->connectionCloseEnabled())
closeChannel(i);
QMetaObject::invokeMethod(q, "_q_startNextRequest", Qt::QueuedConnection);
return;
}
}
// remove from the high priority queue
if (!highPriorityQueue.isEmpty()) {
for (int j = highPriorityQueue.count() - 1; j >= 0; --j) {
HttpMessagePair messagePair = highPriorityQueue.at(j);
if (messagePair.second == reply) {
highPriorityQueue.removeAt(j);
QMetaObject::invokeMethod(q, "_q_startNextRequest", Qt::QueuedConnection);
return;
}
}
}
// remove from the low priority queue
if (!lowPriorityQueue.isEmpty()) {
for (int j = lowPriorityQueue.count() - 1; j >= 0; --j) {
HttpMessagePair messagePair = lowPriorityQueue.at(j);
if (messagePair.second == reply) {
lowPriorityQueue.removeAt(j);
QMetaObject::invokeMethod(q, "_q_startNextRequest", Qt::QueuedConnection);
return;
}
}
}
}
void QHttpNetworkConnectionPrivate::_q_startNextRequest()
{
//resend the necessary ones.
for (int i = 0; i < channelCount; ++i) {
if (channels[i].resendCurrent) {
channels[i].resendCurrent = false;
channels[i].state = QHttpNetworkConnectionChannel::IdleState;
if (channels[i].reply)
sendRequest(channels[i].socket);
}
}
QAbstractSocket *socket = 0;
for (int i = 0; i < channelCount; ++i) {
QAbstractSocket *chSocket = channels[i].socket;
// send the request using the idle socket
if (!isSocketBusy(chSocket)) {
socket = chSocket;
break;
}
}
if (!socket)
return; // this will be called after finishing current request.
unqueueAndSendRequest(socket);
}
void QHttpNetworkConnectionPrivate::_q_restartAuthPendingRequests()
{
// send the request using the idle socket
for (int i = 0 ; i < channelCount; ++i) {
QAbstractSocket *socket = channels[i].socket;
if (channels[i].state == QHttpNetworkConnectionChannel::Wait4AuthState) {
channels[i].state = QHttpNetworkConnectionChannel::IdleState;
if (channels[i].reply)
sendRequest(socket);
}
}
}
QHttpNetworkConnection::QHttpNetworkConnection(const QString &hostName, quint16 port, bool encrypt, QObject *parent)
: QObject(*(new QHttpNetworkConnectionPrivate(hostName, port, encrypt)), parent)
{
Q_D(QHttpNetworkConnection);
d->init();
}
QHttpNetworkConnection::~QHttpNetworkConnection()
{
}
QString QHttpNetworkConnection::hostName() const
{
Q_D(const QHttpNetworkConnection);
return d->hostName;
}
quint16 QHttpNetworkConnection::port() const
{
Q_D(const QHttpNetworkConnection);
return d->port;
}
QHttpNetworkReply* QHttpNetworkConnection::sendRequest(const QHttpNetworkRequest &request)
{
Q_D(QHttpNetworkConnection);
return d->queueRequest(request);
}
void QHttpNetworkConnection::enableEncryption()
{
Q_D(QHttpNetworkConnection);
d->encrypt = true;
}
bool QHttpNetworkConnection::isEncrypted() const
{
Q_D(const QHttpNetworkConnection);
return d->encrypt;
}
void QHttpNetworkConnection::setProxyAuthentication(QAuthenticator *authenticator)
{
Q_D(QHttpNetworkConnection);
for (int i = 0; i < d->channelCount; ++i)
d->channels[i].proxyAuthenticator = *authenticator;
}
void QHttpNetworkConnection::setAuthentication(const QString &domain, QAuthenticator *authenticator)
{
Q_UNUSED(domain); // ### domain ?
Q_D(QHttpNetworkConnection);
for (int i = 0; i < d->channelCount; ++i)
d->channels[i].authenticator = *authenticator;
}
#ifndef QT_NO_NETWORKPROXY
void QHttpNetworkConnection::setCacheProxy(const QNetworkProxy &networkProxy)
{
Q_D(QHttpNetworkConnection);
d->networkProxy = networkProxy;
// update the authenticator
if (!d->networkProxy.user().isEmpty()) {
for (int i = 0; i < d->channelCount; ++i) {
d->channels[i].proxyAuthenticator.setUser(d->networkProxy.user());
d->channels[i].proxyAuthenticator.setPassword(d->networkProxy.password());
}
}
}
QNetworkProxy QHttpNetworkConnection::cacheProxy() const
{
Q_D(const QHttpNetworkConnection);
return d->networkProxy;
}
void QHttpNetworkConnection::setTransparentProxy(const QNetworkProxy &networkProxy)
{
Q_D(QHttpNetworkConnection);
for (int i = 0; i < d->channelCount; ++i)
d->channels[i].socket->setProxy(networkProxy);
}
QNetworkProxy QHttpNetworkConnection::transparentProxy() const
{
Q_D(const QHttpNetworkConnection);
return d->channels[0].socket->proxy();
}
#endif
// SSL support below
#ifndef QT_NO_OPENSSL
QSslConfiguration QHttpNetworkConnectionPrivate::sslConfiguration(const QHttpNetworkReply &reply) const
{
if (!encrypt)
return QSslConfiguration();
for (int i = 0; i < channelCount; ++i)
if (channels[i].reply == &reply)
return static_cast<QSslSocket *>(channels[0].socket)->sslConfiguration();
return QSslConfiguration(); // pending or done request
}
void QHttpNetworkConnection::setSslConfiguration(const QSslConfiguration &config)
{
Q_D(QHttpNetworkConnection);
if (!d->encrypt)
return;
// set the config on all channels
for (int i = 0; i < d->channelCount; ++i)
static_cast<QSslSocket *>(d->channels[i].socket)->setSslConfiguration(config);
}
void QHttpNetworkConnection::ignoreSslErrors(int channel)
{
Q_D(QHttpNetworkConnection);
if (!d->encrypt)
return;
if (channel == -1) { // ignore for all channels
for (int i = 0; i < d->channelCount; ++i) {
static_cast<QSslSocket *>(d->channels[i].socket)->ignoreSslErrors();
d->channels[i].ignoreAllSslErrors = true;
}
} else {
static_cast<QSslSocket *>(d->channels[channel].socket)->ignoreSslErrors();
d->channels[channel].ignoreAllSslErrors = true;
}
}
void QHttpNetworkConnection::ignoreSslErrors(const QList<QSslError> &errors, int channel)
{
Q_D(QHttpNetworkConnection);
if (!d->encrypt)
return;
if (channel == -1) { // ignore for all channels
for (int i = 0; i < d->channelCount; ++i) {
static_cast<QSslSocket *>(d->channels[i].socket)->ignoreSslErrors(errors);
d->channels[i].ignoreSslErrorsList = errors;
}
} else {
static_cast<QSslSocket *>(d->channels[channel].socket)->ignoreSslErrors(errors);
d->channels[channel].ignoreSslErrorsList = errors;
}
}
#endif //QT_NO_OPENSSL
QT_END_NAMESPACE
#include "moc_qhttpnetworkconnection_p.cpp"
#endif // QT_NO_HTTP
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