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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#include "qnetworkreplyfileimpl_p.h"
#include "QtCore/qdatetime.h"
#include "qnetworkaccessmanager_p.h"
#include <QtCore/QCoreApplication>
#include <QtCore/QFileInfo>
#include <QtCore/QThread>
#include "qnetworkfile_p.h"
#include "qnetworkrequest.h"
QT_BEGIN_NAMESPACE
using namespace Qt::StringLiterals;
QT_IMPL_METATYPE_EXTERN_TAGGED(QNetworkRequest::KnownHeaders, QNetworkRequest__KnownHeaders)
QNetworkReplyFileImplPrivate::QNetworkReplyFileImplPrivate()
: QNetworkReplyPrivate(), managerPrivate(nullptr), realFile(nullptr)
{
qRegisterMetaType<QNetworkRequest::KnownHeaders>();
qRegisterMetaType<QNetworkReply::NetworkError>();
}
QNetworkReplyFileImpl::~QNetworkReplyFileImpl()
{
QNetworkReplyFileImplPrivate *d = (QNetworkReplyFileImplPrivate*) d_func();
if (d->realFile) {
if (d->realFile->thread() == QThread::currentThread())
delete d->realFile;
else
QMetaObject::invokeMethod(d->realFile, "deleteLater", Qt::QueuedConnection);
}
}
QNetworkReplyFileImpl::QNetworkReplyFileImpl(QNetworkAccessManager *manager, const QNetworkRequest &req, const QNetworkAccessManager::Operation op)
: QNetworkReply(*new QNetworkReplyFileImplPrivate(), manager)
{
setRequest(req);
setUrl(req.url());
setOperation(op);
QNetworkReply::open(QIODevice::ReadOnly);
QNetworkReplyFileImplPrivate *d = (QNetworkReplyFileImplPrivate*) d_func();
d->managerPrivate = manager->d_func();
QUrl url = req.url();
if (url.host() == "localhost"_L1)
url.setHost(QString());
#if !defined(Q_OS_WIN)
// do not allow UNC paths on Unix
if (!url.host().isEmpty()) {
// we handle only local files
QString msg = QCoreApplication::translate("QNetworkAccessFileBackend", "Request for opening non-local file %1").arg(url.toString());
setError(QNetworkReply::ProtocolInvalidOperationError, msg);
setFinished(true); // We're finished, will emit finished() after ctor is done.
QMetaObject::invokeMethod(this, "errorOccurred", Qt::QueuedConnection,
Q_ARG(QNetworkReply::NetworkError, QNetworkReply::ProtocolInvalidOperationError));
QMetaObject::invokeMethod(this, &QNetworkReplyFileImpl::fileOpenFinished, Qt::QueuedConnection, false);
return;
}
#endif
if (url.path().isEmpty())
url.setPath("/"_L1);
setUrl(url);
QString fileName = url.toLocalFile();
if (fileName.isEmpty()) {
const QString scheme = url.scheme();
if (scheme == "qrc"_L1) {
fileName = u':' + url.path();
} else {
#if defined(Q_OS_ANDROID)
if (scheme == "assets"_L1)
fileName = "assets:"_L1 + url.path();
else
#endif
fileName = url.toString(QUrl::RemoveAuthority | QUrl::RemoveFragment | QUrl::RemoveQuery);
}
}
if (req.attribute(QNetworkRequest::BackgroundRequestAttribute).toBool()) { // Asynchronous open
auto realFile = new QNetworkFile(fileName);
connect(realFile, &QNetworkFile::headerRead, this, &QNetworkReplyFileImpl::setHeader,
Qt::QueuedConnection);
connect(realFile, &QNetworkFile::error, this, &QNetworkReplyFileImpl::setError,
Qt::QueuedConnection);
connect(realFile, SIGNAL(finished(bool)), SLOT(fileOpenFinished(bool)),
Qt::QueuedConnection);
realFile->moveToThread(d->managerPrivate->createThread());
QMetaObject::invokeMethod(realFile, "open", Qt::QueuedConnection);
d->realFile = realFile;
} else { // Synch open
setFinished(true);
QFileInfo fi(fileName);
if (fi.isDir()) {
QString msg = QCoreApplication::translate("QNetworkAccessFileBackend", "Cannot open %1: Path is a directory").arg(url.toString());
setError(QNetworkReply::ContentOperationNotPermittedError, msg);
QMetaObject::invokeMethod(this, "errorOccurred", Qt::QueuedConnection,
Q_ARG(QNetworkReply::NetworkError, QNetworkReply::ContentOperationNotPermittedError));
QMetaObject::invokeMethod(this, "finished", Qt::QueuedConnection);
return;
}
d->realFile = new QFile(fileName, this);
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(d->realFile->fileName(), d->realFile->errorString());
if (fi.exists()) {
setError(QNetworkReply::ContentAccessDenied, msg);
QMetaObject::invokeMethod(this, "errorOccurred", Qt::QueuedConnection,
Q_ARG(QNetworkReply::NetworkError, QNetworkReply::ContentAccessDenied));
} else {
setError(QNetworkReply::ContentNotFoundError, msg);
QMetaObject::invokeMethod(this, "errorOccurred", Qt::QueuedConnection,
Q_ARG(QNetworkReply::NetworkError, QNetworkReply::ContentNotFoundError));
}
QMetaObject::invokeMethod(this, "finished", Qt::QueuedConnection);
return;
}
setHeader(QNetworkRequest::LastModifiedHeader, fi.lastModified());
setHeader(QNetworkRequest::ContentLengthHeader, fi.size());
QMetaObject::invokeMethod(this, "metaDataChanged", Qt::QueuedConnection);
QMetaObject::invokeMethod(this, "downloadProgress", Qt::QueuedConnection,
Q_ARG(qint64, fi.size()), Q_ARG(qint64, fi.size()));
QMetaObject::invokeMethod(this, "readyRead", Qt::QueuedConnection);
QMetaObject::invokeMethod(this, "finished", Qt::QueuedConnection);
}
}
void QNetworkReplyFileImpl::close()
{
Q_D(QNetworkReplyFileImpl);
QNetworkReply::close();
if (d->realFile) {
if (d->realFile->thread() == thread())
d->realFile->close();
else
QMetaObject::invokeMethod(d->realFile, "close", Qt::QueuedConnection);
}
}
void QNetworkReplyFileImpl::abort()
{
close();
}
qint64 QNetworkReplyFileImpl::bytesAvailable() const
{
Q_D(const QNetworkReplyFileImpl);
if (!d->isFinished || !d->realFile || !d->realFile->isOpen())
return QNetworkReply::bytesAvailable();
return QNetworkReply::bytesAvailable() + d->realFile->bytesAvailable();
}
bool QNetworkReplyFileImpl::isSequential () const
{
return true;
}
qint64 QNetworkReplyFileImpl::size() const
{
bool ok;
int size = header(QNetworkRequest::ContentLengthHeader).toInt(&ok);
return ok ? size : 0;
}
/*!
\internal
*/
qint64 QNetworkReplyFileImpl::readData(char *data, qint64 maxlen)
{
Q_D(QNetworkReplyFileImpl);
if (!d->isFinished || !d->realFile || !d->realFile->isOpen())
return -1;
qint64 ret = d->realFile->read(data, maxlen);
if (bytesAvailable() == 0)
d->realFile->close();
if (ret == 0 && bytesAvailable() == 0)
return -1;
else {
setAttribute(QNetworkRequest::HttpStatusCodeAttribute, 200);
setAttribute(QNetworkRequest::HttpReasonPhraseAttribute, "OK"_L1);
return ret;
}
}
void QNetworkReplyFileImpl::fileOpenFinished(bool isOpen)
{
setFinished(true);
if (isOpen) {
const auto fileSize = size();
Q_EMIT metaDataChanged();
Q_EMIT downloadProgress(fileSize, fileSize);
Q_EMIT readyRead();
}
Q_EMIT finished();
}
QT_END_NAMESPACE
#include "moc_qnetworkreplyfileimpl_p.cpp"
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