/**************************************************************************** ** ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). ** All rights reserved. ** 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 Technology Preview License Agreement accompanying ** this package. ** ** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package. ** ** If you have questions regarding the use of this file, please contact ** Nokia at qt-info@nokia.com. ** ** ** ** ** ** ** ** ** $QT_END_LICENSE$ ** ****************************************************************************/ #include "qnetworkaccessdatabackend_p.h" #include "qnetworkrequest.h" #include "qnetworkreply.h" #include "qurlinfo.h" QT_BEGIN_NAMESPACE QNetworkAccessBackend * QNetworkAccessDataBackendFactory::create(QNetworkAccessManager::Operation, const QNetworkRequest &request) const { if (request.url().scheme() == QLatin1String("data")) return new QNetworkAccessDataBackend; return 0; } QNetworkAccessDataBackend::QNetworkAccessDataBackend() { } QNetworkAccessDataBackend::~QNetworkAccessDataBackend() { } void QNetworkAccessDataBackend::open() { QUrl uri = request().url(); if (operation() != QNetworkAccessManager::GetOperation && operation() != QNetworkAccessManager::HeadOperation) { // data: doesn't support anything but GET QString msg = QObject::tr("Operation not supported on %1") .arg(uri.toString()); error(QNetworkReply::ContentOperationNotPermittedError, msg); finished(); return; } if (uri.host().isEmpty()) { setHeader(QNetworkRequest::ContentTypeHeader, QLatin1String("text/plain;charset=US-ASCII")); // the following would have been the correct thing, but // reality often differs from the specification. People have // data: URIs with ? and # //QByteArray data = QByteArray::fromPercentEncoding(uri.encodedPath()); QByteArray data = QByteArray::fromPercentEncoding(uri.toEncoded()); // remove the data: scheme data.remove(0, 5); // parse it: int pos = data.indexOf(','); if (pos != -1) { QByteArray payload = data.mid(pos + 1); data.truncate(pos); data = data.trimmed(); // find out if the payload is encoded in Base64 if (data.endsWith(";base64")) { payload = QByteArray::fromBase64(payload); data.chop(7); } if (data.toLower().startsWith("charset")) { int i = 7; // strlen("charset") while (data.at(i) == ' ') ++i; if (data.at(i) == '=') data.prepend("text/plain;"); } if (!data.isEmpty()) setHeader(QNetworkRequest::ContentTypeHeader, data.trimmed()); setHeader(QNetworkRequest::ContentLengthHeader, payload.size()); emit metaDataChanged(); QByteDataBuffer list; list.append(payload); payload.clear(); // important because of implicit sharing! writeDownstreamData(list); finished(); return; } } // something wrong with this URI QString msg = QObject::tr("Invalid URI: %1").arg(uri.toString()); error(QNetworkReply::ProtocolFailure, msg); finished(); } void QNetworkAccessDataBackend::closeDownstreamChannel() { } void QNetworkAccessDataBackend::closeUpstreamChannel() { } bool QNetworkAccessDataBackend::waitForDownstreamReadyRead(int) { return false; } bool QNetworkAccessDataBackend::waitForUpstreamBytesWritten(int) { return false; } QT_END_NAMESPACE