Merge branch '4.6' of scm.dev.nokia.troll.no:qt/qt-s60-public

Conflicts:
	mkspecs/features/symbian/platform_paths.prf

55 files changed, 285 insertions, 193 deletions

diff --git a/src/network/access/qabstractnetworkcache.cpp b/src/network/access/qabstractnetworkcache.cpp
index bf068ef..f091714 100644
--- a/src/network/access/qabstractnetworkcache.cpp
+++ b/src/network/access/qabstractnetworkcache.cpp
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
diff --git a/src/network/access/qabstractnetworkcache.h b/src/network/access/qabstractnetworkcache.h
index faab1a8..30d5937 100644
--- a/src/network/access/qabstractnetworkcache.h
+++ b/src/network/access/qabstractnetworkcache.h
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
diff --git a/src/network/access/qabstractnetworkcache_p.h b/src/network/access/qabstractnetworkcache_p.h
index 31906db..ed3cd17 100644
--- a/src/network/access/qabstractnetworkcache_p.h
+++ b/src/network/access/qabstractnetworkcache_p.h
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
diff --git a/src/network/access/qfilenetworkreply.cpp b/src/network/access/qfilenetworkreply.cpp
index 497519f..8c5065c 100644
--- a/src/network/access/qfilenetworkreply.cpp
+++ b/src/network/access/qfilenetworkreply.cpp
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
@@ -44,35 +44,32 @@
 #include "QtCore/qdatetime.h"
 #include <QtCore/QCoreApplication>
 #include <QtCore/QFileInfo>
+#include <QDebug>
 
 QT_BEGIN_NAMESPACE
 
 QFileNetworkReplyPrivate::QFileNetworkReplyPrivate()
-    : QNetworkReplyPrivate(), realFileSize(0), finished(false)
+    : QNetworkReplyPrivate(), realFileSize(0)
 {
 }
 
-QFileNetworkReply::QFileNetworkReply(QObject *parent, const QNetworkRequest &req)
+QFileNetworkReply::~QFileNetworkReply()
+{
+}
+
+QFileNetworkReply::QFileNetworkReply(QObject *parent, const QNetworkRequest &req, const QNetworkAccessManager::Operation op)
     : QNetworkReply(*new QFileNetworkReplyPrivate(), parent)
 {
     setRequest(req);
     setUrl(req.url());
-    setOperation(QNetworkAccessManager::GetOperation);
-    QMetaObject::invokeMethod(this, "_q_startOperation", Qt::QueuedConnection);
+    setOperation(op);
     QNetworkReply::open(QIODevice::ReadOnly);
-}
 
-QFileNetworkReply::~QFileNetworkReply()
-{
-}
+    qRegisterMetaType<QNetworkReply::NetworkError>("QNetworkReply::NetworkError");
 
-// This code is mostly inspired by QNetworkAccessFileBackend
-// We also use its translation context for error messages
-void QFileNetworkReplyPrivate::_q_startOperation()
-{
-    Q_Q(QFileNetworkReply);
+    QFileNetworkReplyPrivate *d = (QFileNetworkReplyPrivate*) d_func();
 
-    QUrl url = q->url();
+    QUrl url = req.url();
     if (url.host() == QLatin1String("localhost"))
         url.setHost(QString());
 
@@ -81,81 +78,75 @@ void QFileNetworkReplyPrivate::_q_startOperation()
     if (!url.host().isEmpty()) {
         // we handle only local files
         QString msg = QCoreApplication::translate("QNetworkAccessFileBackend", "Request for opening non-local file %1").arg(url.toString());
-        q->setError(QNetworkReply::ProtocolInvalidOperationError, msg);
-        emit q->error(QNetworkReply::ProtocolInvalidOperationError);
-        doFinished();
+        setError(QNetworkReply::ProtocolInvalidOperationError, msg);
+        QMetaObject::invokeMethod(this, "error", Qt::QueuedConnection,
+            Q_ARG(QNetworkReply::NetworkError, QNetworkReply::ProtocolInvalidOperationError));
+        QMetaObject::invokeMethod(this, "finished", Qt::QueuedConnection);
         return;
     }
 #endif
     if (url.path().isEmpty())
         url.setPath(QLatin1String("/"));
-    q->setUrl(url);
+    setUrl(url);
 
 
     QString fileName = url.toLocalFile();
     if (fileName.isEmpty()) {
         fileName = url.toString(QUrl::RemoveAuthority | QUrl::RemoveFragment | QUrl::RemoveQuery);
     }
-    realFile.setFileName(fileName);
+    d->realFile.setFileName(fileName);
 
-    QFileInfo fi(realFile);
+    QFileInfo fi(d->realFile);
     if (fi.isDir()) {
         QString msg = QCoreApplication::translate("QNetworkAccessFileBackend", "Cannot open %1: Path is a directory").arg(url.toString());
-        q->setError(QNetworkReply::ContentOperationNotPermittedError, msg);
-        emit q->error(QNetworkReply::ContentOperationNotPermittedError);
-        doFinished();
+        setError(QNetworkReply::ContentOperationNotPermittedError, msg);
+        QMetaObject::invokeMethod(this, "error", Qt::QueuedConnection,
+            Q_ARG(QNetworkReply::NetworkError, QNetworkReply::ContentOperationNotPermittedError));
+        QMetaObject::invokeMethod(this, "finished", Qt::QueuedConnection);
         return;
     }
 
-    bool opened = realFile.open(QIODevice::ReadOnly | QIODevice::Unbuffered);
+    bool opened = d->realFile.open(QIODevice::ReadOnly | QIODevice::Unbuffered);
 
     // could we open the file?
     if (!opened) {
         QString msg = QCoreApplication::translate("QNetworkAccessFileBackend", "Error opening %1: %2")
-                      .arg(realFile.fileName(), realFile.errorString());
+                      .arg(d->realFile.fileName(), d->realFile.errorString());
 
-        if (realFile.exists()) {
-            q->setError(QNetworkReply::ContentAccessDenied, msg);
-            emit q->error(QNetworkReply::ContentAccessDenied);
+        if (d->realFile.exists()) {
+            setError(QNetworkReply::ContentAccessDenied, msg);
+            QMetaObject::invokeMethod(this, "error", Qt::QueuedConnection,
+                Q_ARG(QNetworkReply::NetworkError, QNetworkReply::ContentAccessDenied));
         } else {
-            q->setError(QNetworkReply::ContentNotFoundError, msg);
-            emit q->error(QNetworkReply::ContentNotFoundError);
+            setError(QNetworkReply::ContentNotFoundError, msg);
+            QMetaObject::invokeMethod(this, "error", Qt::QueuedConnection,
+                Q_ARG(QNetworkReply::NetworkError, QNetworkReply::ContentNotFoundError));
         }
-        doFinished();
+        QMetaObject::invokeMethod(this, "finished", Qt::QueuedConnection);
         return;
     }
 
-    realFileSize = fi.size();
-    q->setHeader(QNetworkRequest::LastModifiedHeader, fi.lastModified());
-    q->setHeader(QNetworkRequest::ContentLengthHeader, realFileSize);
+    d->realFileSize = fi.size();
+    setHeader(QNetworkRequest::LastModifiedHeader, fi.lastModified());
+    setHeader(QNetworkRequest::ContentLengthHeader, d->realFileSize);
 
-    emit q->metaDataChanged();
-    emit q->downloadProgress(realFileSize, realFileSize);
-    emit q->readyRead();
-    doFinished();
+    QMetaObject::invokeMethod(this, "metaDataChanged", Qt::QueuedConnection);
+    QMetaObject::invokeMethod(this, "downloadProgress", Qt::QueuedConnection,
+        Q_ARG(qint64, d->realFileSize), Q_ARG(qint64, d->realFileSize));
+    QMetaObject::invokeMethod(this, "readyRead", Qt::QueuedConnection);
+    QMetaObject::invokeMethod(this, "finished", Qt::QueuedConnection);
 }
 
 bool QFileNetworkReplyPrivate::isFinished() const
 {
-    return finished;
-}
-
-void QFileNetworkReplyPrivate::doFinished()
-{
-    Q_Q(QFileNetworkReply);
-    finished = true;
-    emit q->finished();
+    return true;
 }
 
-
 void QFileNetworkReply::close()
 {
     Q_D(QFileNetworkReply);
     QNetworkReply::close();
     d->realFile.close();
-
-    if (!d->finished)
-        d->doFinished();
 }
 
 void QFileNetworkReply::abort()
@@ -163,9 +154,6 @@ void QFileNetworkReply::abort()
     Q_D(QFileNetworkReply);
     QNetworkReply::close();
     d->realFile.close();
-
-    if (!d->finished)
-        d->doFinished();
 }
 
 qint64 QFileNetworkReply::bytesAvailable() const
diff --git a/src/network/access/qfilenetworkreply_p.h b/src/network/access/qfilenetworkreply_p.h
index 831f50a..125fa2e 100644
--- a/src/network/access/qfilenetworkreply_p.h
+++ b/src/network/access/qfilenetworkreply_p.h
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
@@ -66,7 +66,7 @@ class QFileNetworkReply: public QNetworkReply
 {
     Q_OBJECT
 public:
-    QFileNetworkReply(QObject *parent, const QNetworkRequest &req);
+    QFileNetworkReply(QObject *parent, const QNetworkRequest &req, const QNetworkAccessManager::Operation op);
     ~QFileNetworkReply();
     virtual void abort();
 
@@ -76,12 +76,9 @@ public:
     virtual bool isSequential () const;
     qint64 size() const;
 
-
     virtual qint64 readData(char *data, qint64 maxlen);
 
     Q_DECLARE_PRIVATE(QFileNetworkReply)
-    Q_PRIVATE_SLOT(d_func(), void _q_startOperation())
-
 };
 
 class QFileNetworkReplyPrivate: public QNetworkReplyPrivate
@@ -92,12 +89,7 @@ public:
     QFile realFile;
     qint64 realFileSize;
 
-    void _q_startOperation();
-
     virtual bool isFinished() const;
-    void doFinished();
-    bool finished;
-
 
     Q_DECLARE_PUBLIC(QFileNetworkReply)
 };
diff --git a/src/network/access/qftp.cpp b/src/network/access/qftp.cpp
index 6280dd7..efeef4e 100644
--- a/src/network/access/qftp.cpp
+++ b/src/network/access/qftp.cpp
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
diff --git a/src/network/access/qftp.h b/src/network/access/qftp.h
index af8b4c0..db2177c 100644
--- a/src/network/access/qftp.h
+++ b/src/network/access/qftp.h
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
diff --git a/src/network/access/qhttp.cpp b/src/network/access/qhttp.cpp
index 7365435..13375f8 100644
--- a/src/network/access/qhttp.cpp
+++ b/src/network/access/qhttp.cpp
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
diff --git a/src/network/access/qhttp.h b/src/network/access/qhttp.h
index f30def2..6bcce65 100644
--- a/src/network/access/qhttp.h
+++ b/src/network/access/qhttp.h
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
diff --git a/src/network/access/qhttpnetworkconnection.cpp b/src/network/access/qhttpnetworkconnection.cpp
index 2dbd512..20baac8 100644
--- a/src/network/access/qhttpnetworkconnection.cpp
+++ b/src/network/access/qhttpnetworkconnection.cpp
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
@@ -415,14 +415,13 @@ QHttpNetworkReply* QHttpNetworkConnectionPrivate::queueRequest(const QHttpNetwor
         lowPriorityQueue.prepend(pair);
         break;
     }
-    QMetaObject::invokeMethod(q, "_q_startNextRequest", Qt::QueuedConnection);
+    // this used to be called via invokeMethod and a QueuedConnection
+    _q_startNextRequest();
     return reply;
 }
 
 void QHttpNetworkConnectionPrivate::requeueRequest(const HttpMessagePair &pair)
 {
-    Q_Q(QHttpNetworkConnection);
-
     QHttpNetworkRequest request = pair.first;
     switch (request.priority()) {
     case QHttpNetworkRequest::HighPriority:
@@ -433,7 +432,8 @@ void QHttpNetworkConnectionPrivate::requeueRequest(const HttpMessagePair &pair)
         lowPriorityQueue.prepend(pair);
         break;
     }
-    QMetaObject::invokeMethod(q, "_q_startNextRequest", Qt::QueuedConnection);
+    // this used to be called via invokeMethod and a QueuedConnection
+    _q_startNextRequest();
 }
 
 void QHttpNetworkConnectionPrivate::dequeueAndSendRequest(QAbstractSocket *socket)
@@ -691,19 +691,31 @@ void QHttpNetworkConnectionPrivate::_q_startNextRequest()
                 channels[i].sendRequest();
         }
     }
+
+    // dequeue new ones
+
     QAbstractSocket *socket = 0;
     for (int i = 0; i < channelCount; ++i) {
         QAbstractSocket *chSocket = channels[i].socket;
-        // send the request using the idle socket
-        if (!channels[i].isSocketBusy()) {
+        // try to get a free AND connected socket
+        if (!channels[i].isSocketBusy() && channels[i].socket->state() == QAbstractSocket::ConnectedState) {
             socket = chSocket;
+            dequeueAndSendRequest(socket);
             break;
         }
     }
 
-    // this socket is free,
-    if (socket)
-        dequeueAndSendRequest(socket);
+    if (!socket) {
+        for (int i = 0; i < channelCount; ++i) {
+            QAbstractSocket *chSocket = channels[i].socket;
+            // try to get a free unconnected socket
+            if (!channels[i].isSocketBusy()) {
+                socket = chSocket;
+                dequeueAndSendRequest(socket);
+                break;
+            }
+        }
+    }
 
     // try to push more into all sockets
     // ### FIXME we should move this to the beginning of the function
@@ -731,6 +743,16 @@ void QHttpNetworkConnectionPrivate::_q_restartAuthPendingRequests()
     }
 }
 
+void QHttpNetworkConnectionPrivate::readMoreLater(QHttpNetworkReply *reply)
+{
+    for (int i = 0 ; i < channelCount; ++i) {
+        if (channels[i].reply ==  reply) {
+            // emulate a readyRead() from the socket
+            QMetaObject::invokeMethod(&channels[i], "_q_readyRead", Qt::QueuedConnection);
+            return;
+        }
+    }
+}
 
 QHttpNetworkConnection::QHttpNetworkConnection(const QString &hostName, quint16 port, bool encrypt, QObject *parent)
     : QObject(*(new QHttpNetworkConnectionPrivate(hostName, port, encrypt)), parent)
diff --git a/src/network/access/qhttpnetworkconnection_p.h b/src/network/access/qhttpnetworkconnection_p.h
index 480db18..76da883 100644
--- a/src/network/access/qhttpnetworkconnection_p.h
+++ b/src/network/access/qhttpnetworkconnection_p.h
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
@@ -174,6 +174,9 @@ public:
     void fillPipeline(QAbstractSocket *socket);
     bool fillPipeline(QList<HttpMessagePair> &queue, QHttpNetworkConnectionChannel &channel);
 
+    // read more HTTP body after the next event loop spin
+    void readMoreLater(QHttpNetworkReply *reply);
+
     void copyCredentials(int fromChannel, QAuthenticator *auth, bool isProxy);
 
     // private slots
diff --git a/src/network/access/qhttpnetworkconnectionchannel.cpp b/src/network/access/qhttpnetworkconnectionchannel.cpp
index fa89fcc..1955dba 100644
--- a/src/network/access/qhttpnetworkconnectionchannel.cpp
+++ b/src/network/access/qhttpnetworkconnectionchannel.cpp
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
@@ -166,6 +166,8 @@ bool QHttpNetworkConnectionChannel::sendRequest()
         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
@@ -258,7 +260,7 @@ bool QHttpNetworkConnectionChannel::sendRequest()
         // 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();
+        QMetaObject::invokeMethod(this, "_q_receiveReply", Qt::QueuedConnection);
         break;
     }
     case QHttpNetworkConnectionChannel::ReadingState:
@@ -272,7 +274,7 @@ bool QHttpNetworkConnectionChannel::sendRequest()
 }
 
 
-void QHttpNetworkConnectionChannel::receiveReply()
+void QHttpNetworkConnectionChannel::_q_receiveReply()
 {
     Q_ASSERT(socket);
 
@@ -324,43 +326,56 @@ void QHttpNetworkConnectionChannel::receiveReply()
             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) {
+        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
-                    reply->d_func()->removeAutoDecompressHeader();
+                    replyPrivate->removeAutoDecompressHeader();
                 } else {
-                    reply->d_func()->autoDecompress = false;
+                    replyPrivate->autoDecompress = false;
                 }
-                if (reply && reply->d_func()->statusCode == 100) {
-                    reply->d_func()->state = QHttpNetworkReplyPrivate::ReadingStatusState;
+                if (replyPrivate->statusCode == 100) {
+                    replyPrivate->state = QHttpNetworkReplyPrivate::ReadingStatusState;
                     break; // ignore
                 }
-                if (reply->d_func()->shouldEmitSignals())
+                if (replyPrivate->shouldEmitSignals())
                     emit reply->headerChanged();
-                if (!reply->d_func()->expectContent()) {
-                    reply->d_func()->state = QHttpNetworkReplyPrivate::AllDoneState;
+                if (!replyPrivate->expectContent()) {
+                    replyPrivate->state = QHttpNetworkReplyPrivate::AllDoneState;
                     this->state = QHttpNetworkConnectionChannel::IdleState;
                     allDone();
                     return;
                 }
             }
             break;
+        }
         case QHttpNetworkReplyPrivate::ReadingDataState: {
-            if (!reply->d_func()->isChunked() && !reply->d_func()->autoDecompress
-                && reply->d_func()->bodyLength > 0) {
+           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 = reply->d_func()->readBodyFast(socket, &reply->d_func()->responseData);
-                reply->d_func()->totalProgress += bytes;
-                if (reply->d_func()->shouldEmitSignals()) {
+                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(reply->d_func()->totalProgress, reply->d_func()->bodyLength);
+                    emit reply->dataReadProgress(replyPrivate->totalProgress, replyPrivate->bodyLength);
                     // make sure that the reply is valid
                     if (replyPointer.isNull())
                         return;
@@ -371,16 +386,16 @@ void QHttpNetworkConnectionChannel::receiveReply()
                 // use the traditional slower reading (for compressed encoding, chunked encoding,
                 // no content-length etc)
                 QByteDataBuffer byteDatas;
-                bytes = reply->d_func()->readBody(socket, &byteDatas);
+                bytes = replyPrivate->readBody(socket, &byteDatas);
                 if (bytes) {
-                    if (reply->d_func()->autoDecompress)
-                        reply->d_func()->appendCompressedReplyData(byteDatas);
+                    if (replyPrivate->autoDecompress)
+                        replyPrivate->appendCompressedReplyData(byteDatas);
                     else
-                        reply->d_func()->appendUncompressedReplyData(byteDatas);
+                        replyPrivate->appendUncompressedReplyData(byteDatas);
 
-                    if (!reply->d_func()->autoDecompress) {
-                        reply->d_func()->totalProgress += bytes;
-                        if (reply->d_func()->shouldEmitSignals()) {
+                    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!
@@ -388,7 +403,7 @@ void QHttpNetworkConnectionChannel::receiveReply()
                             // make sure that the reply is valid
                             if (replyPointer.isNull())
                                 return;
-                            emit reply->dataReadProgress(reply->d_func()->totalProgress, reply->d_func()->bodyLength);
+                            emit reply->dataReadProgress(replyPrivate->totalProgress, replyPrivate->bodyLength);
                             // make sure that the reply is valid
                            if (replyPointer.isNull())
                                 return;
@@ -401,7 +416,7 @@ void QHttpNetworkConnectionChannel::receiveReply()
 #endif
                 }
             }
-            if (reply->d_func()->state == QHttpNetworkReplyPrivate::ReadingDataState)
+            if (replyPrivate->state == QHttpNetworkReplyPrivate::ReadingDataState)
                 break;
             // everything done, fall through
             }
@@ -417,15 +432,24 @@ void QHttpNetworkConnectionChannel::receiveReply()
 
 bool QHttpNetworkConnectionChannel::ensureConnection()
 {
+    QAbstractSocket::SocketState socketState = socket->state();
+
+    // resend this request after we receive the disconnected signal
+    if (socketState == QAbstractSocket::ClosingState) {
+        resendCurrent = true;
+        return false;
+    }
+
+    // already trying to connect?
+    if (socketState == QAbstractSocket::HostLookupState ||
+        socketState == QAbstractSocket::ConnectingState) {
+        return false;
+    }
+
     // make sure that this socket is in a connected state, if not initiate
     // connection to the host.
-    if (socket->state() != QAbstractSocket::ConnectedState) {
+    if (socketState != QAbstractSocket::ConnectedState) {
         // connect to the host if not already connected.
-        // resend this request after we receive the disconnected signal
-        if (socket->state() == QAbstractSocket::ClosingState) {
-            resendCurrent = true;
-            return false;
-        }
         state = QHttpNetworkConnectionChannel::ConnectingState;
         pendingEncrypt = connection->d_func()->encrypt;
 
@@ -567,7 +591,7 @@ void QHttpNetworkConnectionChannel::allDone()
             connection->d_func()->fillPipeline(socket);
 
             // continue reading
-            receiveReply();
+            _q_receiveReply();
         }
     } else if (alreadyPipelinedRequests.isEmpty() && socket->bytesAvailable() > 0) {
         eatWhitespace();
@@ -616,10 +640,17 @@ void QHttpNetworkConnectionChannel::requeueCurrentlyPipelinedRequests()
 void QHttpNetworkConnectionChannel::eatWhitespace()
 {
     char c;
-    while (socket->bytesAvailable()) {
-        if (socket->peek(&c, 1) != 1)
+    do {
+        qint64 ret = socket->peek(&c, 1);
+
+        // nothing read, fine.
+        if (ret == 0)
             return;
 
+        // EOF from socket?
+        if (ret == -1)
+            return; // FIXME, we need to stop processing. however the next stuff done will also do that.
+
         // read all whitespace and line endings
         if (c == 11 || c == '\n' || c == '\r' || c == ' ' || c == 31) {
             socket->read(&c, 1);
@@ -627,7 +658,7 @@ void QHttpNetworkConnectionChannel::eatWhitespace()
         } else {
             break;
         }
-    }
+    } while(true);
 }
 
 void QHttpNetworkConnectionChannel::handleStatus()
@@ -739,7 +770,7 @@ void QHttpNetworkConnectionChannel::_q_readyRead()
     if (isSocketWaiting() || isSocketReading()) {
         state = QHttpNetworkConnectionChannel::ReadingState;
         if (reply)
-            receiveReply();
+            _q_receiveReply();
     }
 }
 
@@ -758,7 +789,7 @@ void QHttpNetworkConnectionChannel::_q_disconnected()
     if (isSocketWaiting() || isSocketReading()) {
         state = QHttpNetworkConnectionChannel::ReadingState;
         if (reply)
-            receiveReply();
+            _q_receiveReply();
     } else if (state == QHttpNetworkConnectionChannel::IdleState && resendCurrent) {
         // re-sending request because the socket was in ClosingState
         QMetaObject::invokeMethod(connection, "_q_startNextRequest", Qt::QueuedConnection);
diff --git a/src/network/access/qhttpnetworkconnectionchannel_p.h b/src/network/access/qhttpnetworkconnectionchannel_p.h
index 127a431..c30c236 100644
--- a/src/network/access/qhttpnetworkconnectionchannel_p.h
+++ b/src/network/access/qhttpnetworkconnectionchannel_p.h
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
@@ -144,7 +144,6 @@ public:
     void close();
 
     bool sendRequest();
-    void receiveReply();
 
     bool ensureConnection();
 
@@ -166,6 +165,7 @@ public:
     bool isSocketReading() const;
 
     protected slots:
+    void _q_receiveReply();
     void _q_bytesWritten(qint64 bytes); // proceed sending
     void _q_readyRead(); // pending data to read
     void _q_disconnected(); // disconnected from host
diff --git a/src/network/access/qhttpnetworkheader.cpp b/src/network/access/qhttpnetworkheader.cpp
index e9866ca..c2cc69c 100644
--- a/src/network/access/qhttpnetworkheader.cpp
+++ b/src/network/access/qhttpnetworkheader.cpp
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
diff --git a/src/network/access/qhttpnetworkheader_p.h b/src/network/access/qhttpnetworkheader_p.h
index 9dae42e..9068f85 100644
--- a/src/network/access/qhttpnetworkheader_p.h
+++ b/src/network/access/qhttpnetworkheader_p.h
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
diff --git a/src/network/access/qhttpnetworkreply.cpp b/src/network/access/qhttpnetworkreply.cpp
index 2b0c252..a5223d1 100644
--- a/src/network/access/qhttpnetworkreply.cpp
+++ b/src/network/access/qhttpnetworkreply.cpp
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
@@ -179,9 +179,19 @@ qint64 QHttpNetworkReply::bytesAvailableNextBlock() const
 QByteArray QHttpNetworkReply::readAny()
 {
     Q_D(QHttpNetworkReply);
+    // we'll take the last buffer, so schedule another read from http
+    if (d->downstreamLimited && d->responseData.bufferCount() == 1)
+        d->connection->d_func()->readMoreLater(this);
     return d->responseData.read();
 }
 
+void QHttpNetworkReply::setDownstreamLimited(bool dsl)
+{
+    Q_D(QHttpNetworkReply);
+    d->downstreamLimited = dsl;
+    d->connection->d_func()->readMoreLater(this);
+}
+
 bool QHttpNetworkReply::isFinished() const
 {
     return d_func()->state == QHttpNetworkReplyPrivate::AllDoneState;
@@ -201,7 +211,7 @@ QHttpNetworkReplyPrivate::QHttpNetworkReplyPrivate(const QUrl &newUrl)
       forceConnectionCloseEnabled(false),
       currentChunkSize(0), currentChunkRead(0), connection(0), initInflate(false),
       autoDecompress(false), responseData(), requestIsPrepared(false)
-      ,pipeliningUsed(false)
+      ,pipeliningUsed(false), downstreamLimited(false)
 {
 }
 
diff --git a/src/network/access/qhttpnetworkreply_p.h b/src/network/access/qhttpnetworkreply_p.h
index 1073560..af9266b 100644
--- a/src/network/access/qhttpnetworkreply_p.h
+++ b/src/network/access/qhttpnetworkreply_p.h
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
@@ -125,6 +125,7 @@ public:
     qint64 bytesAvailable() const;
     qint64 bytesAvailableNextBlock() const;
     QByteArray readAny();
+    void setDownstreamLimited(bool t);
 
     bool isFinished() const;
 
@@ -229,6 +230,7 @@ public:
     bool requestIsPrepared;
 
     bool pipeliningUsed;
+    bool downstreamLimited;
 };
 
 
diff --git a/src/network/access/qhttpnetworkrequest.cpp b/src/network/access/qhttpnetworkrequest.cpp
index eacb315..8cdfe6a 100644
--- a/src/network/access/qhttpnetworkrequest.cpp
+++ b/src/network/access/qhttpnetworkrequest.cpp
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
diff --git a/src/network/access/qhttpnetworkrequest_p.h b/src/network/access/qhttpnetworkrequest_p.h
index be72555..dad118e 100644
--- a/src/network/access/qhttpnetworkrequest_p.h
+++ b/src/network/access/qhttpnetworkrequest_p.h
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
diff --git a/src/network/access/qnetworkaccessbackend.cpp b/src/network/access/qnetworkaccessbackend.cpp
index 3e2db7a..8ac64d2 100644
--- a/src/network/access/qnetworkaccessbackend.cpp
+++ b/src/network/access/qnetworkaccessbackend.cpp
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
@@ -161,6 +161,12 @@ void QNetworkAccessBackend::downstreamReadyWrite()
     // do nothing
 }
 
+void QNetworkAccessBackend::setDownstreamLimited(bool b)
+{
+    Q_UNUSED(b);
+    // do nothing
+}
+
 void QNetworkAccessBackend::copyFinished(QIODevice *)
 {
     // do nothing
diff --git a/src/network/access/qnetworkaccessbackend_p.h b/src/network/access/qnetworkaccessbackend_p.h
index a5179cc..43d993c 100644
--- a/src/network/access/qnetworkaccessbackend_p.h
+++ b/src/network/access/qnetworkaccessbackend_p.h
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
@@ -116,6 +116,7 @@ public:
 
     // slot-like:
     virtual void downstreamReadyWrite();
+    virtual void setDownstreamLimited(bool b);
     virtual void copyFinished(QIODevice *);
     virtual void ignoreSslErrors();
     virtual void ignoreSslErrors(const QList<QSslError> &errors);
diff --git a/src/network/access/qnetworkaccesscache.cpp b/src/network/access/qnetworkaccesscache.cpp
index 7f63f9a..4f699a1 100644
--- a/src/network/access/qnetworkaccesscache.cpp
+++ b/src/network/access/qnetworkaccesscache.cpp
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
diff --git a/src/network/access/qnetworkaccesscache_p.h b/src/network/access/qnetworkaccesscache_p.h
index 8e8d8ac..1564e11 100644
--- a/src/network/access/qnetworkaccesscache_p.h
+++ b/src/network/access/qnetworkaccesscache_p.h
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
diff --git a/src/network/access/qnetworkaccesscachebackend.cpp b/src/network/access/qnetworkaccesscachebackend.cpp
index 13d8b94..73491a9 100644
--- a/src/network/access/qnetworkaccesscachebackend.cpp
+++ b/src/network/access/qnetworkaccesscachebackend.cpp
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
diff --git a/src/network/access/qnetworkaccesscachebackend_p.h b/src/network/access/qnetworkaccesscachebackend_p.h
index 3e3b5ea..df001ab 100644
--- a/src/network/access/qnetworkaccesscachebackend_p.h
+++ b/src/network/access/qnetworkaccesscachebackend_p.h
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
diff --git a/src/network/access/qnetworkaccessdatabackend.cpp b/src/network/access/qnetworkaccessdatabackend.cpp
index feec5b6..52c554f 100644
--- a/src/network/access/qnetworkaccessdatabackend.cpp
+++ b/src/network/access/qnetworkaccessdatabackend.cpp
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
diff --git a/src/network/access/qnetworkaccessdatabackend_p.h b/src/network/access/qnetworkaccessdatabackend_p.h
index ba97241..a7c63d5 100644
--- a/src/network/access/qnetworkaccessdatabackend_p.h
+++ b/src/network/access/qnetworkaccessdatabackend_p.h
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
diff --git a/src/network/access/qnetworkaccessdebugpipebackend.cpp b/src/network/access/qnetworkaccessdebugpipebackend.cpp
index fecbe83..5926d0b 100644
--- a/src/network/access/qnetworkaccessdebugpipebackend.cpp
+++ b/src/network/access/qnetworkaccessdebugpipebackend.cpp
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
diff --git a/src/network/access/qnetworkaccessdebugpipebackend_p.h b/src/network/access/qnetworkaccessdebugpipebackend_p.h
index e6771c3..58a4fd0 100644
--- a/src/network/access/qnetworkaccessdebugpipebackend_p.h
+++ b/src/network/access/qnetworkaccessdebugpipebackend_p.h
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
diff --git a/src/network/access/qnetworkaccessfilebackend.cpp b/src/network/access/qnetworkaccessfilebackend.cpp
index 7e2d9d1..4560153 100644
--- a/src/network/access/qnetworkaccessfilebackend.cpp
+++ b/src/network/access/qnetworkaccessfilebackend.cpp
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
diff --git a/src/network/access/qnetworkaccessfilebackend_p.h b/src/network/access/qnetworkaccessfilebackend_p.h
index 89054ba..6df8710 100644
--- a/src/network/access/qnetworkaccessfilebackend_p.h
+++ b/src/network/access/qnetworkaccessfilebackend_p.h
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
diff --git a/src/network/access/qnetworkaccessftpbackend.cpp b/src/network/access/qnetworkaccessftpbackend.cpp
index 094110f..1a59011 100644
--- a/src/network/access/qnetworkaccessftpbackend.cpp
+++ b/src/network/access/qnetworkaccessftpbackend.cpp
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
diff --git a/src/network/access/qnetworkaccessftpbackend_p.h b/src/network/access/qnetworkaccessftpbackend_p.h
index 05460bd..737fa72 100644
--- a/src/network/access/qnetworkaccessftpbackend_p.h
+++ b/src/network/access/qnetworkaccessftpbackend_p.h
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
diff --git a/src/network/access/qnetworkaccesshttpbackend.cpp b/src/network/access/qnetworkaccesshttpbackend.cpp
index 91f9189..58123b2 100644
--- a/src/network/access/qnetworkaccesshttpbackend.cpp
+++ b/src/network/access/qnetworkaccesshttpbackend.cpp
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
@@ -144,7 +144,7 @@ static QHash<QByteArray, QByteArray> parseHttpOptionHeader(const QByteArray &hea
         QByteArray key = QByteArray(header.constData() + pos, end - pos).trimmed().toLower();
         pos = end + 1;
 
-        if (equal != -1) {
+        if (uint(equal) < uint(comma)) {
             // case: token "=" (token | quoted-string)
             // skip spaces
             pos = nextNonWhitespace(header, pos);
@@ -393,13 +393,19 @@ void QNetworkAccessHttpBackend::validateCache(QHttpNetworkRequest &httpRequest,
     if (lastModified.isValid())
         httpRequest.setHeaderField("If-Modified-Since", QNetworkHeadersPrivate::toHttpDate(lastModified));
 
-    it = cacheHeaders.findRawHeader("Cache-Control");
-    if (it != cacheHeaders.rawHeaders.constEnd()) {
-        QHash<QByteArray, QByteArray> cacheControl = parseHttpOptionHeader(it->second);
-        if (cacheControl.contains("must-revalidate"))
-            return;
+    if (CacheLoadControlAttribute == QNetworkRequest::PreferNetwork) {
+        it = cacheHeaders.findRawHeader("Cache-Control");
+        if (it != cacheHeaders.rawHeaders.constEnd()) {
+            QHash<QByteArray, QByteArray> cacheControl = parseHttpOptionHeader(it->second);
+            if (cacheControl.contains("must-revalidate"))
+                return;
+        }
     }
 
+    QDateTime currentDateTime = QDateTime::currentDateTime();
+    QDateTime expirationDate = metaData.expirationDate();
+
+#if 0
     /*
      * age_value
      *      is the value of Age: header received by the cache with
@@ -415,21 +421,24 @@ void QNetworkAccessHttpBackend::validateCache(QHttpNetworkRequest &httpRequest,
      * now
      *      is the current (local) time
      */
-    QDateTime currentDateTime = QDateTime::currentDateTime();
     int age_value = 0;
     it = cacheHeaders.findRawHeader("age");
     if (it != cacheHeaders.rawHeaders.constEnd())
-        age_value = QNetworkHeadersPrivate::fromHttpDate(it->second).toTime_t();
+        age_value = it->second.toInt();
 
+    QDateTime dateHeader;
     int date_value = 0;
     it = cacheHeaders.findRawHeader("date");
-    if (it != cacheHeaders.rawHeaders.constEnd())
-        date_value = QNetworkHeadersPrivate::fromHttpDate(it->second).toTime_t();
+    if (it != cacheHeaders.rawHeaders.constEnd()) {
+        dateHeader = QNetworkHeadersPrivate::fromHttpDate(it->second);
+        date_value = dateHeader.toTime_t();
+    }
 
     int now = currentDateTime.toUTC().toTime_t();
     int request_time = now;
     int response_time = now;
 
+    // Algorithm from RFC 2616 section 13.2.3
     int apparent_age = qMax(0, response_time - date_value);
     int corrected_received_age = qMax(apparent_age, age_value);
     int response_delay = response_time - request_time;
@@ -438,7 +447,6 @@ void QNetworkAccessHttpBackend::validateCache(QHttpNetworkRequest &httpRequest,
     int current_age   = corrected_initial_age + resident_time;
 
     // RFC 2616 13.2.4 Expiration Calculations
-    QDateTime expirationDate = metaData.expirationDate();
     if (!expirationDate.isValid()) {
         if (lastModified.isValid()) {
             int diff = currentDateTime.secsTo(lastModified);
@@ -453,10 +461,15 @@ void QNetworkAccessHttpBackend::validateCache(QHttpNetworkRequest &httpRequest,
         }
     }
 
-    int freshness_lifetime = currentDateTime.secsTo(expirationDate);
+    // the cache-saving code below sets the expirationDate with date+max_age
+    // if "max-age" is present, or to Expires otherwise
+    int freshness_lifetime = dateHeader.secsTo(expirationDate);
     bool response_is_fresh = (freshness_lifetime > current_age);
+#else
+    bool response_is_fresh = currentDateTime.secsTo(expirationDate) >= 0;
+#endif
 
-    if (!response_is_fresh && CacheLoadControlAttribute == QNetworkRequest::PreferNetwork)
+    if (!response_is_fresh)
         return;
 
     loadedFromCache = true;
@@ -581,9 +594,10 @@ void QNetworkAccessHttpBackend::open()
     if (transparentProxy.type() == QNetworkProxy::DefaultProxy &&
         cacheProxy.type() == QNetworkProxy::DefaultProxy) {
         // unsuitable proxies
-        error(QNetworkReply::ProxyNotFoundError,
-              tr("No suitable proxy found"));
-        finished();
+        QMetaObject::invokeMethod(this, "error", Qt::QueuedConnection,
+                                  Q_ARG(QNetworkReply::NetworkError, QNetworkReply::ProxyNotFoundError),
+                                  Q_ARG(QString, tr("No suitable proxy found")));
+        QMetaObject::invokeMethod(this, "finished", Qt::QueuedConnection);
         return;
     }
 #endif
@@ -643,6 +657,12 @@ void QNetworkAccessHttpBackend::downstreamReadyWrite()
         replyFinished();
 }
 
+void QNetworkAccessHttpBackend::setDownstreamLimited(bool b)
+{
+    if (httpReply)
+        httpReply->setDownstreamLimited(b);
+}
+
 void QNetworkAccessHttpBackend::replyReadyRead()
 {
     readFromHttp();
diff --git a/src/network/access/qnetworkaccesshttpbackend_p.h b/src/network/access/qnetworkaccesshttpbackend_p.h
index 55aadac..0eaf003 100644
--- a/src/network/access/qnetworkaccesshttpbackend_p.h
+++ b/src/network/access/qnetworkaccesshttpbackend_p.h
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
@@ -82,6 +82,8 @@ public:
     virtual bool waitForDownstreamReadyRead(int msecs);
 
     virtual void downstreamReadyWrite();
+    virtual void setDownstreamLimited(bool b);
+
     virtual void copyFinished(QIODevice *);
 #ifndef QT_NO_OPENSSL
     virtual void ignoreSslErrors();
@@ -104,6 +106,7 @@ private slots:
     void httpAuthenticationRequired(const QHttpNetworkRequest &request, QAuthenticator *auth);
     void httpError(QNetworkReply::NetworkError error, const QString &errorString);
     bool sendCacheContents(const QNetworkCacheMetaData &metaData);
+    void finished(); // override
 
 private:
     QHttpNetworkReply *httpReply;
@@ -118,7 +121,6 @@ private:
 #endif
 
     void disconnectFromHttp();
-    void finished();            // override
     void setupConnection();
     void validateCache(QHttpNetworkRequest &httpRequest, bool &loadedFromCache);
     void invalidateCache();
diff --git a/src/network/access/qnetworkaccessmanager.cpp b/src/network/access/qnetworkaccessmanager.cpp
index 754633d..e16aedc 100644
--- a/src/network/access/qnetworkaccessmanager.cpp
+++ b/src/network/access/qnetworkaccessmanager.cpp
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
@@ -687,10 +687,10 @@ QNetworkReply *QNetworkAccessManager::createRequest(QNetworkAccessManager::Opera
     // Also if the scheme is empty we consider it a file.
     // The QNetworkAccessFileBackend will right now only be used
     // for PUT or qrc://
-    if (op == QNetworkAccessManager::GetOperation
+    if ((op == QNetworkAccessManager::GetOperation || op == QNetworkAccessManager::HeadOperation)
          && (req.url().scheme() == QLatin1String("file")
              || req.url().scheme().isEmpty())) {
-        return new QFileNetworkReply(this, req);
+        return new QFileNetworkReply(this, req, op);
     }
 
     QNetworkRequest request = req;
@@ -723,8 +723,6 @@ QNetworkReply *QNetworkAccessManager::createRequest(QNetworkAccessManager::Opera
     // third step: find a backend
     priv->backend = d->findBackend(op, request);
 
-    // fourth step: setup the reply
-    priv->setup(op, request, outgoingData);
 #ifndef QT_NO_NETWORKPROXY
     QList<QNetworkProxy> proxyList = d->queryProxy(QNetworkProxyQuery(request.url()));
     priv->proxyList = proxyList;
@@ -733,6 +731,8 @@ QNetworkReply *QNetworkAccessManager::createRequest(QNetworkAccessManager::Opera
         priv->backend->setParent(reply);
         priv->backend->reply = priv;
     }
+    // fourth step: setup the reply
+    priv->setup(op, request, outgoingData);
 
 #ifndef QT_NO_OPENSSL
     reply->setSslConfiguration(request.sslConfiguration());
diff --git a/src/network/access/qnetworkaccessmanager.h b/src/network/access/qnetworkaccessmanager.h
index d4d5f54..d2fe527 100644
--- a/src/network/access/qnetworkaccessmanager.h
+++ b/src/network/access/qnetworkaccessmanager.h
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
diff --git a/src/network/access/qnetworkaccessmanager_p.h b/src/network/access/qnetworkaccessmanager_p.h
index 3bd83c4..1749373 100644
--- a/src/network/access/qnetworkaccessmanager_p.h
+++ b/src/network/access/qnetworkaccessmanager_p.h
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
diff --git a/src/network/access/qnetworkcookie.cpp b/src/network/access/qnetworkcookie.cpp
index 7dfb7af..865d338 100644
--- a/src/network/access/qnetworkcookie.cpp
+++ b/src/network/access/qnetworkcookie.cpp
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
diff --git a/src/network/access/qnetworkcookie.h b/src/network/access/qnetworkcookie.h
index 4a49d39..f34396f 100644
--- a/src/network/access/qnetworkcookie.h
+++ b/src/network/access/qnetworkcookie.h
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
diff --git a/src/network/access/qnetworkcookie_p.h b/src/network/access/qnetworkcookie_p.h
index ffea34b..a65013c 100644
--- a/src/network/access/qnetworkcookie_p.h
+++ b/src/network/access/qnetworkcookie_p.h
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
diff --git a/src/network/access/qnetworkcookiejar.cpp b/src/network/access/qnetworkcookiejar.cpp
index f826115..8727095 100644
--- a/src/network/access/qnetworkcookiejar.cpp
+++ b/src/network/access/qnetworkcookiejar.cpp
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
diff --git a/src/network/access/qnetworkcookiejar.h b/src/network/access/qnetworkcookiejar.h
index 168ccae..813bf3e 100644
--- a/src/network/access/qnetworkcookiejar.h
+++ b/src/network/access/qnetworkcookiejar.h
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
diff --git a/src/network/access/qnetworkcookiejar_p.h b/src/network/access/qnetworkcookiejar_p.h
index b21a8ce..5802115 100644
--- a/src/network/access/qnetworkcookiejar_p.h
+++ b/src/network/access/qnetworkcookiejar_p.h
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
diff --git a/src/network/access/qnetworkdiskcache.cpp b/src/network/access/qnetworkdiskcache.cpp
index 596beb6..ec6817a 100644
--- a/src/network/access/qnetworkdiskcache.cpp
+++ b/src/network/access/qnetworkdiskcache.cpp
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
diff --git a/src/network/access/qnetworkdiskcache.h b/src/network/access/qnetworkdiskcache.h
index f52e24b..0b6cf1b 100644
--- a/src/network/access/qnetworkdiskcache.h
+++ b/src/network/access/qnetworkdiskcache.h
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
diff --git a/src/network/access/qnetworkdiskcache_p.h b/src/network/access/qnetworkdiskcache_p.h
index 0f3d6d2..ad46602 100644
--- a/src/network/access/qnetworkdiskcache_p.h
+++ b/src/network/access/qnetworkdiskcache_p.h
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
diff --git a/src/network/access/qnetworkreply.cpp b/src/network/access/qnetworkreply.cpp
index 9ab4057..0a8ea5d 100644
--- a/src/network/access/qnetworkreply.cpp
+++ b/src/network/access/qnetworkreply.cpp
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
@@ -171,7 +171,7 @@ QNetworkReplyPrivate::QNetworkReplyPrivate()
     \value UnknownProxyError            an unknown proxy-related error
     was detected
 
-    \value UnknownContentError          an unknonwn error related to
+    \value UnknownContentError          an unknown error related to
     the remote content was detected
 
     \value ProtocolFailure              a breakdown in protocol was
@@ -239,7 +239,10 @@ QNetworkReplyPrivate::QNetworkReplyPrivate()
     \note Do not delete the object in the slot connected to this
     signal. Use deleteLater().
 
-    \sa QNetworkAccessManager::finished()
+    You can also use isFinished() to check if a QNetworkReply
+    has finished even before you receive the finished() signal.
+
+    \sa QNetworkAccessManager::finished(), isFinished()
 */
 
 /*!
diff --git a/src/network/access/qnetworkreply.h b/src/network/access/qnetworkreply.h
index c624810..5be4cce 100644
--- a/src/network/access/qnetworkreply.h
+++ b/src/network/access/qnetworkreply.h
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
diff --git a/src/network/access/qnetworkreply_p.h b/src/network/access/qnetworkreply_p.h
index 50b3213..d7b8ab0 100644
--- a/src/network/access/qnetworkreply_p.h
+++ b/src/network/access/qnetworkreply_p.h
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
diff --git a/src/network/access/qnetworkreplyimpl.cpp b/src/network/access/qnetworkreplyimpl.cpp
index 1667c10..59c7d76 100644
--- a/src/network/access/qnetworkreplyimpl.cpp
+++ b/src/network/access/qnetworkreplyimpl.cpp
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
@@ -72,6 +72,9 @@ void QNetworkReplyImplPrivate::_q_startOperation()
     }
     state = Working;
 
+    // note: if that method is called directly, it cannot happen that the backend is 0,
+    // because we just checked via a qobject_cast that we got a http backend (see
+    // QNetworkReplyImplPrivate::setup())
     if (!backend) {
         error(QNetworkReplyImpl::ProtocolUnknownError,
               QCoreApplication::translate("QNetworkReply", "Protocol \"%1\" is unknown").arg(url.scheme())); // not really true!;
@@ -203,7 +206,6 @@ void QNetworkReplyImplPrivate::_q_bufferOutgoingData()
     }
 }
 
-
 void QNetworkReplyImplPrivate::setup(QNetworkAccessManager::Operation op, const QNetworkRequest &req,
                                      QIODevice *data)
 {
@@ -246,7 +248,14 @@ void QNetworkReplyImplPrivate::setup(QNetworkAccessManager::Operation op, const
         // No outgoing data (e.g. HTTP GET request)
         // or no backend
         // if no backend, _q_startOperation will handle the error of this
-        QMetaObject::invokeMethod(q, "_q_startOperation", Qt::QueuedConnection);
+
+        // for HTTP, we want to send out the request as fast as possible to the network, without
+        // invoking methods in a QueuedConnection
+        if (qobject_cast<QNetworkAccessHttpBackend *>(backend)) {
+            _q_startOperation();
+        } else {
+            QMetaObject::invokeMethod(q, "_q_startOperation", Qt::QueuedConnection);
+        }
     }
 
     q->QIODevice::open(QIODevice::ReadOnly);
@@ -643,6 +652,9 @@ void QNetworkReplyImpl::setReadBufferSize(qint64 size)
         d->backendNotify(QNetworkReplyImplPrivate::NotifyDownstreamReadyWrite);
 
     QNetworkReply::setReadBufferSize(size);
+
+    if (d->backend)
+        d->backend->setDownstreamLimited(d->readBufferMaxSize > 0);
 }
 
 #ifndef QT_NO_OPENSSL
diff --git a/src/network/access/qnetworkreplyimpl_p.h b/src/network/access/qnetworkreplyimpl_p.h
index 64c52e4..168e5cf 100644
--- a/src/network/access/qnetworkreplyimpl_p.h
+++ b/src/network/access/qnetworkreplyimpl_p.h
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
diff --git a/src/network/access/qnetworkrequest.cpp b/src/network/access/qnetworkrequest.cpp
index 923f2e3..6dcd05d 100644
--- a/src/network/access/qnetworkrequest.cpp
+++ b/src/network/access/qnetworkrequest.cpp
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
diff --git a/src/network/access/qnetworkrequest.h b/src/network/access/qnetworkrequest.h
index 62c6dda..fe01f8c 100644
--- a/src/network/access/qnetworkrequest.h
+++ b/src/network/access/qnetworkrequest.h
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
diff --git a/src/network/access/qnetworkrequest_p.h b/src/network/access/qnetworkrequest_p.h
index 9b3632f..dcb3f97 100644
--- a/src/network/access/qnetworkrequest_p.h
+++ b/src/network/access/qnetworkrequest_p.h
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **