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Move DownloadHandlerImpl class to its own file

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This also resolves lupdate warning.
This commit is contained in:
Chocobo1 2019-11-11 19:13:30 +08:00
parent b4c518e075
commit d936bca268
No known key found for this signature in database
GPG Key ID: 210D9C873253A68C
5 changed files with 305 additions and 229 deletions
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2
src/base/CMakeLists.txt
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@ -35,6 +35,7 @@ net/dnsupdater.h
net/downloadmanager.h
net/geoipmanager.h
net/portforwarder.h
net/private/downloadhandlerimpl.h
net/private/geoipdatabase.h
net/proxyconfigurationmanager.h
net/reverseresolution.h
@ -107,6 +108,7 @@ net/dnsupdater.cpp
net/downloadmanager.cpp
net/geoipmanager.cpp
net/portforwarder.cpp
net/private/downloadhandlerimpl.cpp
net/private/geoipdatabase.cpp
net/proxyconfigurationmanager.cpp
net/reverseresolution.cpp

2
src/base/base.pri
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@ -40,6 +40,7 @@ HEADERS += \
$$PWD/net/downloadmanager.h \
$$PWD/net/geoipmanager.h \
$$PWD/net/portforwarder.h \
$$PWD/net/private/downloadhandlerimpl.h \
$$PWD/net/private/geoipdatabase.h \
$$PWD/net/proxyconfigurationmanager.h \
$$PWD/net/reverseresolution.h \
@ -110,6 +111,7 @@ SOURCES += \
$$PWD/net/downloadmanager.cpp \
$$PWD/net/geoipmanager.cpp \
$$PWD/net/portforwarder.cpp \
$$PWD/net/private/downloadhandlerimpl.cpp \
$$PWD/net/private/geoipdatabase.cpp \
$$PWD/net/proxyconfigurationmanager.cpp \
$$PWD/net/reverseresolution.cpp \

233
src/base/net/downloadmanager.cpp
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@ -39,22 +39,19 @@
#include <QNetworkReply>
#include <QNetworkRequest>
#include <QSslError>
#include <QTemporaryFile>
#include <QUrl>
#include "base/global.h"
#include "base/logger.h"
#include "base/preferences.h"
#include "base/utils/fs.h"
#include "base/utils/gzip.h"
#include "base/utils/misc.h"
#include "private/downloadhandlerimpl.h"
#include "proxyconfigurationmanager.h"
// Disguise as Firefox to avoid web server banning
const char DEFAULT_USER_AGENT[] = "Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Firefox/68.0";
namespace
{
// Disguise as Firefox to avoid web server banning
const char DEFAULT_USER_AGENT[] = "Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Firefox/68.0";
const int MAX_REDIRECTIONS = 20; // the common value for web browsers
class NetworkCookieJar : public QNetworkCookieJar
@ -113,35 +110,6 @@ namespace
}
};
class DownloadHandlerImpl : public Net::DownloadHandler
{
Q_DISABLE_COPY(DownloadHandlerImpl)
public:
explicit DownloadHandlerImpl(const Net::DownloadRequest &downloadRequest, QObject *parent);
~DownloadHandlerImpl() override;
void cancel() override;
QString url() const;
const Net::DownloadRequest downloadRequest() const;
void assignNetworkReply(QNetworkReply *reply);
private:
void processFinishedDownload();
void checkDownloadSize(qint64 bytesReceived, qint64 bytesTotal);
void handleRedirection(const QUrl &newUrl);
void setError(const QString &error);
void finish();
static QString errorCodeToString(QNetworkReply::NetworkError status);
QNetworkReply *m_reply = nullptr;
const Net::DownloadRequest m_downloadRequest;
Net::DownloadResult m_result;
};
QNetworkRequest createNetworkRequest(const Net::DownloadRequest &downloadRequest)
{
QNetworkRequest request {downloadRequest.url()};
@ -161,20 +129,6 @@ namespace
return request;
}
bool saveToFile(const QByteArray &replyData, QString &filePath)
{
QTemporaryFile tmpfile {Utils::Fs::tempPath() + "XXXXXX"};
tmpfile.setAutoRemove(false);
if (!tmpfile.open())
return false;
filePath = tmpfile.fileName();
tmpfile.write(replyData);
return true;
}
}
Net::DownloadManager *Net::DownloadManager::m_instance = nullptr;
@ -401,182 +355,3 @@ bool Net::operator==(const ServiceID &lhs, const ServiceID &rhs)
{
return ((lhs.hostName == rhs.hostName) && (lhs.port == rhs.port));
}
namespace
{
DownloadHandlerImpl::DownloadHandlerImpl(const Net::DownloadRequest &downloadRequest, QObject *parent)
: DownloadHandler {parent}
, m_downloadRequest {downloadRequest}
{
m_result.url = url();
m_result.status = Net::DownloadStatus::Success;
}
DownloadHandlerImpl::~DownloadHandlerImpl()
{
if (m_reply)
delete m_reply;
}
void DownloadHandlerImpl::cancel()
{
if (m_reply) {
m_reply->abort();
}
else {
setError(errorCodeToString(QNetworkReply::OperationCanceledError));
finish();
}
}
void DownloadHandlerImpl::assignNetworkReply(QNetworkReply *reply)
{
Q_ASSERT(reply);
m_reply = reply;
m_reply->setParent(this);
if (m_downloadRequest.limit() > 0)
connect(m_reply, &QNetworkReply::downloadProgress, this, &DownloadHandlerImpl::checkDownloadSize);
connect(m_reply, &QNetworkReply::finished, this, &DownloadHandlerImpl::processFinishedDownload);
connect(m_reply, &QNetworkReply::redirected, this, &DownloadHandlerImpl::handleRedirection);
}
// Returns original url
QString DownloadHandlerImpl::url() const
{
return m_downloadRequest.url();
}
const Net::DownloadRequest DownloadHandlerImpl::downloadRequest() const
{
return m_downloadRequest;
}
void DownloadHandlerImpl::processFinishedDownload()
{
qDebug("Download finished: %s", qUtf8Printable(url()));
// Check if the request was successful
if (m_reply->error() != QNetworkReply::NoError) {
// Failure
qDebug("Download failure (%s), reason: %s", qUtf8Printable(url()), qUtf8Printable(errorCodeToString(m_reply->error())));
setError(errorCodeToString(m_reply->error()));
finish();
return;
}
// Success
m_result.data = (m_reply->rawHeader("Content-Encoding") == "gzip")
? Utils::Gzip::decompress(m_reply->readAll())
: m_reply->readAll();
if (m_downloadRequest.saveToFile()) {
QString filePath;
if (saveToFile(m_result.data, filePath))
m_result.filePath = filePath;
else
setError(tr("I/O Error"));
}
finish();
}
void DownloadHandlerImpl::checkDownloadSize(const qint64 bytesReceived, const qint64 bytesTotal)
{
if ((bytesTotal > 0) && (bytesTotal <= m_downloadRequest.limit())) {
// Total number of bytes is available
disconnect(m_reply, &QNetworkReply::downloadProgress, this, &DownloadHandlerImpl::checkDownloadSize);
return;
}
if ((bytesTotal > m_downloadRequest.limit()) || (bytesReceived > m_downloadRequest.limit())) {
m_reply->abort();
setError(tr("The file size is %1. It exceeds the download limit of %2.")
.arg(Utils::Misc::friendlyUnit(bytesTotal)
, Utils::Misc::friendlyUnit(m_downloadRequest.limit())));
finish();
}
}
void DownloadHandlerImpl::handleRedirection(const QUrl &newUrl)
{
// Resolve relative urls
const QUrl resolvedUrl = newUrl.isRelative() ? m_reply->url().resolved(newUrl) : newUrl;
const QString newUrlString = resolvedUrl.toString();
qDebug("Redirecting from %s to %s...", qUtf8Printable(m_reply->url().toString()), qUtf8Printable(newUrlString));
// Redirect to magnet workaround
if (newUrlString.startsWith("magnet:", Qt::CaseInsensitive)) {
qDebug("Magnet redirect detected.");
m_result.status = Net::DownloadStatus::RedirectedToMagnet;
m_result.magnet = newUrlString;
m_result.errorString = tr("Redirected to magnet URI.");
finish();
return;
}
emit m_reply->redirectAllowed();
}
void DownloadHandlerImpl::setError(const QString &error)
{
m_result.errorString = error;
m_result.status = Net::DownloadStatus::Failed;
}
void DownloadHandlerImpl::finish()
{
emit finished(m_result);
}
QString DownloadHandlerImpl::errorCodeToString(const QNetworkReply::NetworkError status)
{
switch (status) {
case QNetworkReply::HostNotFoundError:
return tr("The remote host name was not found (invalid hostname)");
case QNetworkReply::OperationCanceledError:
return tr("The operation was canceled");
case QNetworkReply::RemoteHostClosedError:
return tr("The remote server closed the connection prematurely, before the entire reply was received and processed");
case QNetworkReply::TimeoutError:
return tr("The connection to the remote server timed out");
case QNetworkReply::SslHandshakeFailedError:
return tr("SSL/TLS handshake failed");
case QNetworkReply::ConnectionRefusedError:
return tr("The remote server refused the connection");
case QNetworkReply::ProxyConnectionRefusedError:
return tr("The connection to the proxy server was refused");
case QNetworkReply::ProxyConnectionClosedError:
return tr("The proxy server closed the connection prematurely");
case QNetworkReply::ProxyNotFoundError:
return tr("The proxy host name was not found");
case QNetworkReply::ProxyTimeoutError:
return tr("The connection to the proxy timed out or the proxy did not reply in time to the request sent");
case QNetworkReply::ProxyAuthenticationRequiredError:
return tr("The proxy requires authentication in order to honor the request but did not accept any credentials offered");
case QNetworkReply::ContentAccessDenied:
return tr("The access to the remote content was denied (401)");
case QNetworkReply::ContentOperationNotPermittedError:
return tr("The operation requested on the remote content is not permitted");
case QNetworkReply::ContentNotFoundError:
return tr("The remote content was not found at the server (404)");
case QNetworkReply::AuthenticationRequiredError:
return tr("The remote server requires authentication to serve the content but the credentials provided were not accepted");
case QNetworkReply::ProtocolUnknownError:
return tr("The Network Access API cannot honor the request because the protocol is not known");
case QNetworkReply::ProtocolInvalidOperationError:
return tr("The requested operation is invalid for this protocol");
case QNetworkReply::UnknownNetworkError:
return tr("An unknown network-related error was detected");
case QNetworkReply::UnknownProxyError:
return tr("An unknown proxy-related error was detected");
case QNetworkReply::UnknownContentError:
return tr("An unknown error related to the remote content was detected");
case QNetworkReply::ProtocolFailure:
return tr("A breakdown in protocol was detected");
default:
return tr("Unknown error");
}
}
}

230
src/base/net/private/downloadhandlerimpl.cpp Normal file
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@ -0,0 +1,230 @@
/*
* Bittorrent Client using Qt and libtorrent.
* Copyright (C) 2015, 2018 Vladimir Golovnev <glassez@yandex.ru>
* Copyright (C) 2006 Christophe Dumez <chris@qbittorrent.org>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* In addition, as a special exception, the copyright holders give permission to
* link this program with the OpenSSL project's "OpenSSL" library (or with
* modified versions of it that use the same license as the "OpenSSL" library),
* and distribute the linked executables. You must obey the GNU General Public
* License in all respects for all of the code used other than "OpenSSL". If you
* modify file(s), you may extend this exception to your version of the file(s),
* but you are not obligated to do so. If you do not wish to do so, delete this
* exception statement from your version.
*/
#include "downloadhandlerimpl.h"
#include <QTemporaryFile>
#include <QUrl>
#include "base/utils/fs.h"
#include "base/utils/gzip.h"
#include "base/utils/misc.h"
namespace
{
bool saveToFile(const QByteArray &replyData, QString &filePath)
{
QTemporaryFile tmpfile {Utils::Fs::tempPath() + "XXXXXX"};
tmpfile.setAutoRemove(false);
if (!tmpfile.open())
return false;
filePath = tmpfile.fileName();
tmpfile.write(replyData);
return true;
}
}
DownloadHandlerImpl::DownloadHandlerImpl(const Net::DownloadRequest &downloadRequest, QObject *parent)
: DownloadHandler {parent}
, m_downloadRequest {downloadRequest}
{
m_result.url = url();
m_result.status = Net::DownloadStatus::Success;
}
DownloadHandlerImpl::~DownloadHandlerImpl()
{
if (m_reply)
delete m_reply;
}
void DownloadHandlerImpl::cancel()
{
if (m_reply) {
m_reply->abort();
}
else {
setError(errorCodeToString(QNetworkReply::OperationCanceledError));
finish();
}
}
void DownloadHandlerImpl::assignNetworkReply(QNetworkReply *reply)
{
Q_ASSERT(reply);
m_reply = reply;
m_reply->setParent(this);
if (m_downloadRequest.limit() > 0)
connect(m_reply, &QNetworkReply::downloadProgress, this, &DownloadHandlerImpl::checkDownloadSize);
connect(m_reply, &QNetworkReply::finished, this, &DownloadHandlerImpl::processFinishedDownload);
connect(m_reply, &QNetworkReply::redirected, this, &DownloadHandlerImpl::handleRedirection);
}
// Returns original url
QString DownloadHandlerImpl::url() const
{
return m_downloadRequest.url();
}
const Net::DownloadRequest DownloadHandlerImpl::downloadRequest() const
{
return m_downloadRequest;
}
void DownloadHandlerImpl::processFinishedDownload()
{
qDebug("Download finished: %s", qUtf8Printable(url()));
// Check if the request was successful
if (m_reply->error() != QNetworkReply::NoError) {
// Failure
qDebug("Download failure (%s), reason: %s", qUtf8Printable(url()), qUtf8Printable(errorCodeToString(m_reply->error())));
setError(errorCodeToString(m_reply->error()));
finish();
return;
}
// Success
m_result.data = (m_reply->rawHeader("Content-Encoding") == "gzip")
? Utils::Gzip::decompress(m_reply->readAll())
: m_reply->readAll();
if (m_downloadRequest.saveToFile()) {
QString filePath;
if (saveToFile(m_result.data, filePath))
m_result.filePath = filePath;
else
setError(tr("I/O Error"));
}
finish();
}
void DownloadHandlerImpl::checkDownloadSize(const qint64 bytesReceived, const qint64 bytesTotal)
{
if ((bytesTotal > 0) && (bytesTotal <= m_downloadRequest.limit())) {
// Total number of bytes is available
disconnect(m_reply, &QNetworkReply::downloadProgress, this, &DownloadHandlerImpl::checkDownloadSize);
return;
}
if ((bytesTotal > m_downloadRequest.limit()) || (bytesReceived > m_downloadRequest.limit())) {
m_reply->abort();
setError(tr("The file size is %1. It exceeds the download limit of %2.")
.arg(Utils::Misc::friendlyUnit(bytesTotal)
, Utils::Misc::friendlyUnit(m_downloadRequest.limit())));
finish();
}
}
void DownloadHandlerImpl::handleRedirection(const QUrl &newUrl)
{
// Resolve relative urls
const QUrl resolvedUrl = newUrl.isRelative() ? m_reply->url().resolved(newUrl) : newUrl;
const QString newUrlString = resolvedUrl.toString();
qDebug("Redirecting from %s to %s...", qUtf8Printable(m_reply->url().toString()), qUtf8Printable(newUrlString));
// Redirect to magnet workaround
if (newUrlString.startsWith("magnet:", Qt::CaseInsensitive)) {
qDebug("Magnet redirect detected.");
m_result.status = Net::DownloadStatus::RedirectedToMagnet;
m_result.magnet = newUrlString;
m_result.errorString = tr("Redirected to magnet URI.");
finish();
return;
}
emit m_reply->redirectAllowed();
}
void DownloadHandlerImpl::setError(const QString &error)
{
m_result.errorString = error;
m_result.status = Net::DownloadStatus::Failed;
}
void DownloadHandlerImpl::finish()
{
emit finished(m_result);
}
QString DownloadHandlerImpl::errorCodeToString(const QNetworkReply::NetworkError status)
{
switch (status) {
case QNetworkReply::HostNotFoundError:
return tr("The remote host name was not found (invalid hostname)");
case QNetworkReply::OperationCanceledError:
return tr("The operation was canceled");
case QNetworkReply::RemoteHostClosedError:
return tr("The remote server closed the connection prematurely, before the entire reply was received and processed");
case QNetworkReply::TimeoutError:
return tr("The connection to the remote server timed out");
case QNetworkReply::SslHandshakeFailedError:
return tr("SSL/TLS handshake failed");
case QNetworkReply::ConnectionRefusedError:
return tr("The remote server refused the connection");
case QNetworkReply::ProxyConnectionRefusedError:
return tr("The connection to the proxy server was refused");
case QNetworkReply::ProxyConnectionClosedError:
return tr("The proxy server closed the connection prematurely");
case QNetworkReply::ProxyNotFoundError:
return tr("The proxy host name was not found");
case QNetworkReply::ProxyTimeoutError:
return tr("The connection to the proxy timed out or the proxy did not reply in time to the request sent");
case QNetworkReply::ProxyAuthenticationRequiredError:
return tr("The proxy requires authentication in order to honor the request but did not accept any credentials offered");
case QNetworkReply::ContentAccessDenied:
return tr("The access to the remote content was denied (401)");
case QNetworkReply::ContentOperationNotPermittedError:
return tr("The operation requested on the remote content is not permitted");
case QNetworkReply::ContentNotFoundError:
return tr("The remote content was not found at the server (404)");
case QNetworkReply::AuthenticationRequiredError:
return tr("The remote server requires authentication to serve the content but the credentials provided were not accepted");
case QNetworkReply::ProtocolUnknownError:
return tr("The Network Access API cannot honor the request because the protocol is not known");
case QNetworkReply::ProtocolInvalidOperationError:
return tr("The requested operation is invalid for this protocol");
case QNetworkReply::UnknownNetworkError:
return tr("An unknown network-related error was detected");
case QNetworkReply::UnknownProxyError:
return tr("An unknown proxy-related error was detected");
case QNetworkReply::UnknownContentError:
return tr("An unknown error related to the remote content was detected");
case QNetworkReply::ProtocolFailure:
return tr("A breakdown in protocol was detected");
default:
return tr("Unknown error");
}
}

67
src/base/net/private/downloadhandlerimpl.h Normal file
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@ -0,0 +1,67 @@
/*
* Bittorrent Client using Qt and libtorrent.
* Copyright (C) 2015, 2018 Vladimir Golovnev <glassez@yandex.ru>
* Copyright (C) 2006 Christophe Dumez <chris@qbittorrent.org>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* In addition, as a special exception, the copyright holders give permission to
* link this program with the OpenSSL project's "OpenSSL" library (or with
* modified versions of it that use the same license as the "OpenSSL" library),
* and distribute the linked executables. You must obey the GNU General Public
* License in all respects for all of the code used other than "OpenSSL". If you
* modify file(s), you may extend this exception to your version of the file(s),
* but you are not obligated to do so. If you do not wish to do so, delete this
* exception statement from your version.
*/
#pragma once
#include <QNetworkReply>
#include "base/net/downloadmanager.h"
class QObject;
class QUrl;
class DownloadHandlerImpl : public Net::DownloadHandler
{
Q_OBJECT
Q_DISABLE_COPY(DownloadHandlerImpl)
public:
explicit DownloadHandlerImpl(const Net::DownloadRequest &downloadRequest, QObject *parent);
~DownloadHandlerImpl() override;
void cancel() override;
QString url() const;
const Net::DownloadRequest downloadRequest() const;
void assignNetworkReply(QNetworkReply *reply);
private:
void processFinishedDownload();
void checkDownloadSize(qint64 bytesReceived, qint64 bytesTotal);
void handleRedirection(const QUrl &newUrl);
void setError(const QString &error);
void finish();
static QString errorCodeToString(QNetworkReply::NetworkError status);
QNetworkReply *m_reply = nullptr;
const Net::DownloadRequest m_downloadRequest;
Net::DownloadResult m_result;
};