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Merge pull request #500 from flowln/net_refactor

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Refactor a little the code in `launcher/net/` files
This commit is contained in:
Sefa Eyeoglu
2022-05-21 12:06:34 +02:00
committed by GitHub
parent 482e049ac7 ff9f3cb31f
commit b4707f46ad
27 changed files with 1399 additions and 840 deletions
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149
launcher/net/Download.cpp
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@ -1,22 +1,41 @@
/* Copyright 2013-2021 MultiMC Contributors
// SPDX-License-Identifier: GPL-3.0-only
/*
* PolyMC - Minecraft Launcher
* Copyright (c) 2022 flowln <flowlnlnln@gmail.com>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* 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, version 3.
*
* http://www.apache.org/licenses/LICENSE-2.0
* 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.
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
* This file incorporates work covered by the following copyright and
* permission notice:
*
* Copyright 2013-2021 MultiMC Contributors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "Download.h"
#include <QDateTime>
#include <QDebug>
#include <QFileInfo>
#include "ByteArraySink.h"
@ -31,33 +50,32 @@ namespace Net {
Download::Download() : NetAction()
{
m_status = Job_NotStarted;
m_state = State::Inactive;
}
Download::Ptr Download::makeCached(QUrl url, MetaEntryPtr entry, Options options)
auto Download::makeCached(QUrl url, MetaEntryPtr entry, Options options) -> Download::Ptr
{
Download* dl = new Download();
auto* dl = new Download();
dl->m_url = url;
dl->m_options = options;
auto md5Node = new ChecksumValidator(QCryptographicHash::Md5);
auto cachedNode = new MetaCacheSink(entry, md5Node);
dl->m_sink.reset(cachedNode);
dl->m_target_path = entry->getFullPath();
return dl;
}
Download::Ptr Download::makeByteArray(QUrl url, QByteArray* output, Options options)
auto Download::makeByteArray(QUrl url, QByteArray* output, Options options) -> Download::Ptr
{
Download* dl = new Download();
auto* dl = new Download();
dl->m_url = url;
dl->m_options = options;
dl->m_sink.reset(new ByteArraySink(output));
return dl;
}
Download::Ptr Download::makeFile(QUrl url, QString path, Options options)
auto Download::makeFile(QUrl url, QString path, Options options) -> Download::Ptr
{
Download* dl = new Download();
auto* dl = new Download();
dl->m_url = url;
dl->m_options = options;
dl->m_sink.reset(new FileSink(path));
@ -69,29 +87,32 @@ void Download::addValidator(Validator* v)
m_sink->addValidator(v);
}
void Download::startImpl()
void Download::executeTask()
{
if (m_status == Job_Aborted) {
setStatus(tr("Downloading %1").arg(m_url.toString()));
if (getState() == Task::State::AbortedByUser) {
qWarning() << "Attempt to start an aborted Download:" << m_url.toString();
emit aborted(m_index_within_job);
emitAborted();
return;
}
QNetworkRequest request(m_url);
m_status = m_sink->init(request);
switch (m_status) {
case Job_Finished:
emit succeeded(m_index_within_job);
m_state = m_sink->init(request);
switch (m_state) {
case State::Succeeded:
emit succeeded();
qDebug() << "Download cache hit " << m_url.toString();
return;
case Job_InProgress:
case State::Running:
qDebug() << "Downloading " << m_url.toString();
break;
case Job_Failed_Proceed: // this is meaningless in this context. We do need a sink.
case Job_NotStarted:
case Job_Failed:
emit failed(m_index_within_job);
case State::Inactive:
case State::Failed:
emitFailed();
return;
case Job_Aborted:
case State::AbortedByUser:
emitAborted();
return;
}
@ -103,8 +124,8 @@ void Download::startImpl()
QNetworkReply* rep = m_network->get(request);
m_reply.reset(rep);
connect(rep, SIGNAL(downloadProgress(qint64, qint64)), SLOT(downloadProgress(qint64, qint64)));
connect(rep, SIGNAL(finished()), SLOT(downloadFinished()));
connect(rep, &QNetworkReply::downloadProgress, this, &Download::downloadProgress);
connect(rep, &QNetworkReply::finished, this, &Download::downloadFinished);
connect(rep, SIGNAL(error(QNetworkReply::NetworkError)), SLOT(downloadError(QNetworkReply::NetworkError)));
connect(rep, &QNetworkReply::sslErrors, this, &Download::sslErrors);
connect(rep, &QNetworkReply::readyRead, this, &Download::downloadReadyRead);
@ -112,26 +133,24 @@ void Download::startImpl()
void Download::downloadProgress(qint64 bytesReceived, qint64 bytesTotal)
{
m_total_progress = bytesTotal;
m_progress = bytesReceived;
emit netActionProgress(m_index_within_job, bytesReceived, bytesTotal);
setProgress(bytesReceived, bytesTotal);
}
void Download::downloadError(QNetworkReply::NetworkError error)
{
if (error == QNetworkReply::OperationCanceledError) {
qCritical() << "Aborted " << m_url.toString();
m_status = Job_Aborted;
m_state = State::AbortedByUser;
} else {
if (m_options & Option::AcceptLocalFiles) {
if (m_sink->hasLocalData()) {
m_status = Job_Failed_Proceed;
m_state = State::Succeeded;
return;
}
}
// error happened during download.
qCritical() << "Failed " << m_url.toString() << " with reason " << error;
m_status = Job_Failed;
m_state = State::Failed;
}
}
@ -146,7 +165,7 @@ void Download::sslErrors(const QList<QSslError>& errors)
}
}
bool Download::handleRedirect()
auto Download::handleRedirect() -> bool
{
QUrl redirect = m_reply->header(QNetworkRequest::LocationHeader).toUrl();
if (!redirect.isValid()) {
@ -195,7 +214,8 @@ bool Download::handleRedirect()
m_url = QUrl(redirect.toString());
qDebug() << "Following redirect to " << m_url.toString();
start(m_network);
startAction(m_network);
return true;
}
@ -208,74 +228,71 @@ void Download::downloadFinished()
}
// if the download failed before this point ...
if (m_status == Job_Failed_Proceed) {
if (m_state == State::Succeeded) // pretend to succeed so we continue processing :)
{
qDebug() << "Download failed but we are allowed to proceed:" << m_url.toString();
m_sink->abort();
m_reply.reset();
emit succeeded(m_index_within_job);
emit succeeded();
return;
} else if (m_status == Job_Failed) {
} else if (m_state == State::Failed) {
qDebug() << "Download failed in previous step:" << m_url.toString();
m_sink->abort();
m_reply.reset();
emit failed(m_index_within_job);
emit failed("");
return;
} else if (m_status == Job_Aborted) {
} else if (m_state == State::AbortedByUser) {
qDebug() << "Download aborted in previous step:" << m_url.toString();
m_sink->abort();
m_reply.reset();
emit aborted(m_index_within_job);
emit aborted();
return;
}
// make sure we got all the remaining data, if any
auto data = m_reply->readAll();
if (data.size()) {
qDebug() << "Writing extra" << data.size() << "bytes to" << m_target_path;
m_status = m_sink->write(data);
qDebug() << "Writing extra" << data.size() << "bytes";
m_state = m_sink->write(data);
}
// otherwise, finalize the whole graph
m_status = m_sink->finalize(*m_reply.get());
if (m_status != Job_Finished) {
m_state = m_sink->finalize(*m_reply.get());
if (m_state != State::Succeeded) {
qDebug() << "Download failed to finalize:" << m_url.toString();
m_sink->abort();
m_reply.reset();
emit failed(m_index_within_job);
emit failed("");
return;
}
m_reply.reset();
qDebug() << "Download succeeded:" << m_url.toString();
emit succeeded(m_index_within_job);
emit succeeded();
}
void Download::downloadReadyRead()
{
if (m_status == Job_InProgress) {
if (m_state == State::Running) {
auto data = m_reply->readAll();
m_status = m_sink->write(data);
if (m_status == Job_Failed) {
qCritical() << "Failed to process response chunk for " << m_target_path;
m_state = m_sink->write(data);
if (m_state == State::Failed) {
qCritical() << "Failed to process response chunk";
}
// qDebug() << "Download" << m_url.toString() << "gained" << data.size() << "bytes";
} else {
qCritical() << "Cannot write to " << m_target_path << ", illegal status" << m_status;
qCritical() << "Cannot write download data! illegal status " << m_status;
}
}
} // namespace Net
bool Net::Download::abort()
auto Net::Download::abort() -> bool
{
if (m_reply) {
m_reply->abort();
} else {
m_status = Job_Aborted;
m_state = State::AbortedByUser;
}
return true;
}
bool Net::Download::canAbort()
{
return true;
}