/*
Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
Copyright (C) 2007 Staikos Computing Services Inc. <info@staikos.net>
Copyright (C) 2008 Holger Hans Peter Freyther
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include "config.h"
#include "QNetworkReplyHandler.h"
#if QT_VERSION >= 0x040400
#include "HTTPParsers.h"
#include "MIMETypeRegistry.h"
#include "ResourceHandle.h"
#include "ResourceHandleClient.h"
#include "ResourceHandleInternal.h"
#include "ResourceResponse.h"
#include "ResourceRequest.h"
#include <QDateTime>
#include <QFile>
#include <QNetworkReply>
#include <QNetworkCookie>
#include <qwebframe.h>
#include <qwebpage.h>
#include <QDebug>
#include <QCoreApplication>
namespace WebCore {
// Take a deep copy of the FormDataElement
FormDataIODevice::FormDataIODevice(FormData* data)
: m_formElements(data ? data->elements() : Vector<FormDataElement>())
, m_currentFile(0)
, m_currentDelta(0)
{
setOpenMode(FormDataIODevice::ReadOnly);
}
FormDataIODevice::~FormDataIODevice()
{
delete m_currentFile;
}
void FormDataIODevice::moveToNextElement()
{
if (m_currentFile)
m_currentFile->close();
m_currentDelta = 0;
m_formElements.remove(0);
if (m_formElements.isEmpty() || m_formElements[0].m_type == FormDataElement::data)
return;
if (!m_currentFile)
m_currentFile = new QFile;
m_currentFile->setFileName(m_formElements[0].m_filename);
m_currentFile->open(QFile::ReadOnly);
}
// m_formElements[0] is the current item. If the destination buffer is
// big enough we are going to read from more than one FormDataElement
qint64 FormDataIODevice::readData(char* destination, qint64 size)
{
if (m_formElements.isEmpty())
return -1;
qint64 copied = 0;
while (copied < size && !m_formElements.isEmpty()) {
const FormDataElement& element = m_formElements[0];
const qint64 available = size-copied;
if (element.m_type == FormDataElement::data) {
const qint64 toCopy = qMin<qint64>(available, element.m_data.size() - m_currentDelta);
memcpy(destination+copied, element.m_data.data()+m_currentDelta, toCopy);
m_currentDelta += toCopy;
copied += toCopy;
if (m_currentDelta == element.m_data.size())
moveToNextElement();
} else {
const QByteArray data = m_currentFile->read(available);
memcpy(destination+copied, data.constData(), data.size());
copied += data.size();
if (m_currentFile->atEnd() || !m_currentFile->isOpen())
moveToNextElement();
}
}
return copied;
}
qint64 FormDataIODevice::writeData(const char*, qint64)
{
return -1;
}
bool FormDataIODevice::isSequential() const
{
return true;
}
QNetworkReplyHandler::QNetworkReplyHandler(ResourceHandle* handle, LoadMode loadMode)
: QObject(0)
, m_reply(0)
, m_resourceHandle(handle)
, m_redirected(false)
, m_responseSent(false)
, m_responseDataSent(false)
, m_loadMode(loadMode)
, m_shouldStart(true)
, m_shouldFinish(false)
, m_shouldSendResponse(false)
, m_shouldForwardData(false)
{
const ResourceRequest &r = m_resourceHandle->request();
if (r.httpMethod() == "GET")
m_method = QNetworkAccessManager::GetOperation;
else if (r.httpMethod() == "HEAD")
m_method = QNetworkAccessManager::HeadOperation;
else if (r.httpMethod() == "POST")
m_method = QNetworkAccessManager::PostOperation;
else if (r.httpMethod() == "PUT")
m_method = QNetworkAccessManager::PutOperation;
else
m_method = QNetworkAccessManager::UnknownOperation;
m_request = r.toNetworkRequest();
if (m_loadMode == LoadNormal)
start();
}
void QNetworkReplyHandler::setLoadMode(LoadMode mode)
{
// https://bugs.webkit.org/show_bug.cgi?id=26556
// We cannot call sendQueuedItems() from here, because the signal that
// caused us to get into deferred mode, might not be processed yet.
switch (mode) {
case LoadNormal:
m_loadMode = LoadResuming;
emit processQueuedItems();
break;
case LoadDeferred:
m_loadMode = LoadDeferred;
break;
case LoadResuming:
Q_ASSERT(0); // should never happen
break;
};
}
void QNetworkReplyHandler::abort()
{
m_resourceHandle = 0;
if (m_reply) {
QNetworkReply* reply = release();
reply->abort();
reply->deleteLater();
deleteLater();
}
}
QNetworkReply* QNetworkReplyHandler::release()
{
QNetworkReply* reply = m_reply;
if (m_reply) {
disconnect(m_reply, 0, this, 0);
// We have queued connections to the QNetworkReply. Make sure any
// posted meta call events that were the result of a signal emission
// don't reach the slots in our instance.
QCoreApplication::removePostedEvents(this, QEvent::MetaCall);
m_reply = 0;
}
return reply;
}
static bool ignoreHttpError(QNetworkReply* reply, bool receivedData)
{
int httpStatusCode = reply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt();
if (httpStatusCode == 401 || httpStatusCode == 407)
return true;
if (receivedData && (httpStatusCode >= 400 && httpStatusCode < 600))
return true;
return false;
}
void QNetworkReplyHandler::finish()
{
m_shouldFinish = (m_loadMode != LoadNormal);
if (m_shouldFinish)
return;
sendResponseIfNeeded();
if (!m_resourceHandle)
return;
ResourceHandleClient* client = m_resourceHandle->client();
if (!client) {
m_reply->deleteLater();
m_reply = 0;
return;
}
QNetworkReply* oldReply = m_reply;
if (m_redirected) {
resetState();
start();
} else if (!m_reply->error() || ignoreHttpError(m_reply, m_responseDataSent)) {
client->didFinishLoading(m_resourceHandle);
} else {
QUrl url = m_reply->url();
int httpStatusCode = m_reply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt();
if (httpStatusCode) {
ResourceError error("HTTP", httpStatusCode, url.toString(), m_reply->attribute(QNetworkRequest::HttpReasonPhraseAttribute).toString());
client->didFail(m_resourceHandle, error);
} else {
ResourceError error("QtNetwork", m_reply->error(), url.toString(), m_reply->errorString());
client->didFail(m_resourceHandle, error);
}
}
oldReply->deleteLater();
if (oldReply == m_reply)
m_reply = 0;
}
void QNetworkReplyHandler::sendResponseIfNeeded()
{
m_shouldSendResponse = (m_loadMode != LoadNormal);
if (m_shouldSendResponse)
return;
if (m_reply->error())
return;
if (m_responseSent || !m_resourceHandle)
return;
m_responseSent = true;
ResourceHandleClient* client = m_resourceHandle->client();
if (!client)
return;
WebCore::String contentType = m_reply->header(QNetworkRequest::ContentTypeHeader).toString();
WebCore::String encoding = extractCharsetFromMediaType(contentType);
WebCore::String mimeType = extractMIMETypeFromMediaType(contentType);
if (mimeType.isEmpty()) {
// let's try to guess from the extension
QString extension = m_reply->url().path();
int index = extension.lastIndexOf(QLatin1Char('.'));
if (index > 0) {
extension = extension.mid(index + 1);
mimeType = MIMETypeRegistry::getMIMETypeForExtension(extension);
}
}
KURL url(m_reply->url());
ResourceResponse response(url, mimeType,
m_reply->header(QNetworkRequest::ContentLengthHeader).toLongLong(),
encoding, String());
if (url.isLocalFile()) {
client->didReceiveResponse(m_resourceHandle, response);
return;
}
// The status code is equal to 0 for protocols not in the HTTP family.
int statusCode = m_reply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt();
if (url.protocolInHTTPFamily()) {
String suggestedFilename = filenameFromHTTPContentDisposition(QString::fromAscii(m_reply->rawHeader("Content-Disposition")));
if (!suggestedFilename.isEmpty())
response.setSuggestedFilename(suggestedFilename);
else
response.setSuggestedFilename(url.lastPathComponent());
response.setHTTPStatusCode(statusCode);
response.setHTTPStatusText(m_reply->attribute(QNetworkRequest::HttpReasonPhraseAttribute).toByteArray().constData());
// Add remaining headers.
foreach (const QByteArray& headerName, m_reply->rawHeaderList()) {
response.setHTTPHeaderField(QString::fromAscii(headerName), QString::fromAscii(m_reply->rawHeader(headerName)));
}
}
QUrl redirection = m_reply->attribute(QNetworkRequest::RedirectionTargetAttribute).toUrl();
if (redirection.isValid()) {
QUrl newUrl = m_reply->url().resolved(redirection);
ResourceRequest newRequest = m_resourceHandle->request();
newRequest.setURL(newUrl);
if (((statusCode >= 301 && statusCode <= 303) || statusCode == 307) && m_method == QNetworkAccessManager::PostOperation) {
m_method = QNetworkAccessManager::GetOperation;
newRequest.setHTTPMethod("GET");
}
client->willSendRequest(m_resourceHandle, newRequest, response);
m_redirected = true;
m_request = newRequest.toNetworkRequest();
ResourceHandleInternal* d = m_resourceHandle->getInternal();
emit d->m_frame->page()->networkRequestStarted(d->m_frame, &m_request);
return;
}
client->didReceiveResponse(m_resourceHandle, response);
}
void QNetworkReplyHandler::forwardData()
{
m_shouldForwardData = (m_loadMode != LoadNormal);
if (m_shouldForwardData)
return;
sendResponseIfNeeded();
// don't emit the "Document has moved here" type of HTML
if (m_redirected)
return;
if (!m_resourceHandle)
return;
QByteArray data = m_reply->read(m_reply->bytesAvailable());
ResourceHandleClient* client = m_resourceHandle->client();
if (!client)
return;
if (!data.isEmpty()) {
m_responseDataSent = true;
client->didReceiveData(m_resourceHandle, data.constData(), data.length(), data.length() /*FixMe*/);
}
}
void QNetworkReplyHandler::start()
{
m_shouldStart = false;
ResourceHandleInternal* d = m_resourceHandle->getInternal();
QNetworkAccessManager* manager = d->m_frame->page()->networkAccessManager();
emit d->m_frame->page()->networkRequestStarted(d->m_frame, &m_request);
const QUrl url = m_request.url();
const QString scheme = url.scheme();
// Post requests on files and data don't really make sense, but for
// fast/forms/form-post-urlencoded.html and for fast/forms/button-state-restore.html
// we still need to retrieve the file/data, which means we map it to a Get instead.
if (m_method == QNetworkAccessManager::PostOperation
&& (!url.toLocalFile().isEmpty() || url.scheme() == QLatin1String("data")))
m_method = QNetworkAccessManager::GetOperation;
switch (m_method) {
case QNetworkAccessManager::GetOperation:
m_reply = manager->get(m_request);
break;
case QNetworkAccessManager::PostOperation: {
FormDataIODevice* postDevice = new FormDataIODevice(d->m_request.httpBody());
m_reply = manager->post(m_request, postDevice);
postDevice->setParent(m_reply);
break;
}
case QNetworkAccessManager::HeadOperation:
m_reply = manager->head(m_request);
break;
case QNetworkAccessManager::PutOperation: {
FormDataIODevice* putDevice = new FormDataIODevice(d->m_request.httpBody());
m_reply = manager->put(m_request, putDevice);
putDevice->setParent(m_reply);
break;
}
case QNetworkAccessManager::UnknownOperation: {
m_reply = 0;
ResourceHandleClient* client = m_resourceHandle->client();
if (client) {
ResourceError error(url.host(), 400 /*bad request*/,
url.toString(),
QCoreApplication::translate("QWebPage", "Bad HTTP request"));
client->didFail(m_resourceHandle, error);
}
return;
}
}
m_reply->setParent(this);
connect(m_reply, SIGNAL(finished()),
this, SLOT(finish()), Qt::QueuedConnection);
// For http(s) we know that the headers are complete upon metaDataChanged() emission, so we
// can send the response as early as possible
if (scheme == QLatin1String("http") || scheme == QLatin1String("https"))
connect(m_reply, SIGNAL(metaDataChanged()),
this, SLOT(sendResponseIfNeeded()), Qt::QueuedConnection);
connect(m_reply, SIGNAL(readyRead()),
this, SLOT(forwardData()), Qt::QueuedConnection);
connect(this, SIGNAL(processQueuedItems()),
this, SLOT(sendQueuedItems()), Qt::QueuedConnection);
}
void QNetworkReplyHandler::resetState()
{
m_redirected = false;
m_responseSent = false;
m_responseDataSent = false;
m_shouldStart = true;
m_shouldFinish = false;
m_shouldSendResponse = false;
m_shouldForwardData = false;
}
void QNetworkReplyHandler::sendQueuedItems()
{
if (m_loadMode != LoadResuming)
return;
m_loadMode = LoadNormal;
if (m_shouldStart)
start();
if (m_shouldSendResponse)
sendResponseIfNeeded();
if (m_shouldForwardData)
forwardData();
if (m_shouldFinish)
finish();
}
}
#include "moc_QNetworkReplyHandler.cpp"
#endif