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/*
Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies)
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 "NetworkingContext.h"
#include "ResourceRequest.h"
#include "ThirdPartyCookiesQt.h"
#if ENABLE(BLOB)
#include "BlobData.h"
#include "BlobRegistryImpl.h"
#include "BlobStorageData.h"
#endif
#include <QNetworkRequest>
#include <QUrl>
#include <wtf/text/Base64.h>
namespace WebCore {
// The limit can be found in qhttpnetworkconnection.cpp.
// To achieve the best result we want WebKit to schedule the jobs so we
// are using the limit as found in Qt. To allow Qt to fill its queue
// and prepare jobs we will schedule two more downloads.
// Per TCP connection there is 1 current processed, 3 possibly pipelined
// and 2 ready to re-fill the pipeline.
unsigned initializeMaximumHTTPConnectionCountPerHost()
{
return 6 * (1 + 3 + 2);
}
#if ENABLE(BLOB)
static bool appendBlobResolved(Vector<char>& out, const KURL& url, QString* contentType = 0)
{
RefPtr<BlobStorageData> blobData = static_cast<BlobRegistryImpl&>(blobRegistry()).getBlobDataFromURL(url);
if (!blobData)
return false;
if (contentType)
*contentType = blobData->contentType();
BlobDataItemList::const_iterator it = blobData->items().begin();
const BlobDataItemList::const_iterator itend = blobData->items().end();
for (; it != itend; ++it) {
const BlobDataItem& blobItem = *it;
if (blobItem.type == BlobDataItem::Data) {
if (!out.tryAppend(reinterpret_cast<const char*>(blobItem.data->data()) + blobItem.offset, blobItem.length))
return false;
} else if (blobItem.type == BlobDataItem::File) {
// File types are not allowed here, so just ignore it.
} else
ASSERT_NOT_REACHED();
}
return true;
}
static QUrl resolveBlobUrl(const KURL& url)
{
RefPtr<BlobStorageData> blobData = static_cast<BlobRegistryImpl&>(blobRegistry()).getBlobDataFromURL(url);
if (!blobData)
return QUrl();
Vector<char> data;
QString contentType;
if (!appendBlobResolved(data, url, &contentType)) {
qWarning("Failed to convert blob data to base64: cannot allocate memory for continuous blob data");
return QUrl();
}
// QByteArray::{from,to}Base64 are prone to integer overflow, this is the maximum size that can be safe
size_t maxBase64Size = std::numeric_limits<int>::max() / 3 - 1;
Vector<char> base64;
WTF::base64Encode(data, base64, WTF::Base64URLPolicy);
if (base64.isEmpty() || base64.size() > maxBase64Size) {
qWarning("Failed to convert blob data to base64: data is too large");
return QUrl();
}
QString dataUri(QStringLiteral("data:"));
dataUri.append(contentType);
dataUri.append(QStringLiteral(";base64,"));
dataUri.reserve(dataUri.size() + base64.size());
dataUri.append(QLatin1String(base64.data(), base64.size()));
return QUrl(dataUri);
}
QUrl convertBlobToDataUrl(const QUrl& url)
{
QT_TRY {
return resolveBlobUrl(url);
} QT_CATCH(const std::bad_alloc &) {
qWarning("Failed to convert blob data to base64: not enough memory");
}
return QUrl();
}
#endif
static QUrl toQUrl(const KURL& url)
{
#if ENABLE(BLOB)
if (url.protocolIs("blob"))
return convertBlobToDataUrl(url);
#endif
return url;
}
static inline QByteArray stringToByteArray(const String& string)
{
if (string.is8Bit())
return QByteArray(reinterpret_cast<const char*>(string.characters8()), string.length());
return QString(string).toLatin1();
}
QNetworkRequest ResourceRequest::toNetworkRequest(NetworkingContext *context) const
{
QNetworkRequest request;
QUrl newurl = toQUrl(url());
request.setUrl(newurl);
request.setOriginatingObject(context ? context->originatingObject() : 0);
const HTTPHeaderMap &headers = httpHeaderFields();
for (HTTPHeaderMap::const_iterator it = headers.begin(), end = headers.end();
it != end; ++it) {
QByteArray name = stringToByteArray(it->key);
// QNetworkRequest::setRawHeader() would remove the header if the value is null
// Make sure to set an empty header instead of null header.
if (!it->value.isNull())
request.setRawHeader(name, stringToByteArray(it->value));
else
request.setRawHeader(name, QByteArrayLiteral(""));
}
// Make sure we always have an Accept header; some sites require this to
// serve subresources
if (!request.hasRawHeader("Accept"))
request.setRawHeader("Accept", "*/*");
switch (cachePolicy()) {
case ReloadIgnoringCacheData:
request.setAttribute(QNetworkRequest::CacheLoadControlAttribute, QNetworkRequest::AlwaysNetwork);
break;
case ReturnCacheDataElseLoad:
request.setAttribute(QNetworkRequest::CacheLoadControlAttribute, QNetworkRequest::PreferCache);
break;
case ReturnCacheDataDontLoad:
request.setAttribute(QNetworkRequest::CacheLoadControlAttribute, QNetworkRequest::AlwaysCache);
break;
case UseProtocolCachePolicy:
// QNetworkRequest::PreferNetwork
default:
break;
}
if (!allowCookies() || !thirdPartyCookiePolicyPermits(context, url(), firstPartyForCookies())) {
request.setAttribute(QNetworkRequest::CookieSaveControlAttribute, QNetworkRequest::Manual);
request.setAttribute(QNetworkRequest::CookieLoadControlAttribute, QNetworkRequest::Manual);
}
if (!allowCookies())
request.setAttribute(QNetworkRequest::AuthenticationReuseAttribute, QNetworkRequest::Manual);
return request;
}
}
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