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// SPDX-License-Identifier: GPL-3.0-only
/*
* PolyMC - Minecraft Launcher
* Copyright (c) 2022 flowln <flowlnlnln@gmail.com>
* Copyright (C) 2022 Sefa Eyeoglu <contact@scrumplex.net>
*
* 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.
*
* 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, 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 "Upload.h"
#include <utility>
#include "ByteArraySink.h"
#include "BuildConfig.h"
#include "Application.h"
namespace Net {
bool Upload::abort()
{
if (m_reply) {
m_reply->abort();
} else {
m_state = State::AbortedByUser;
}
return true;
}
void Upload::downloadProgress(qint64 bytesReceived, qint64 bytesTotal) {
setProgress(bytesReceived, bytesTotal);
}
void Upload::downloadError(QNetworkReply::NetworkError error) {
if (error == QNetworkReply::OperationCanceledError) {
qCritical() << "Aborted " << m_url.toString();
m_state = State::AbortedByUser;
} else {
// error happened during download.
qCritical() << "Failed " << m_url.toString() << " with reason " << error;
m_state = State::Failed;
}
}
void Upload::sslErrors(const QList<QSslError> &errors) {
int i = 1;
for (const auto& error : errors) {
qCritical() << "Upload" << m_url.toString() << "SSL Error #" << i << " : " << error.errorString();
auto cert = error.certificate();
qCritical() << "Certificate in question:\n" << cert.toText();
i++;
}
}
bool Upload::handleRedirect()
{
QUrl redirect = m_reply->header(QNetworkRequest::LocationHeader).toUrl();
if (!redirect.isValid()) {
if (!m_reply->hasRawHeader("Location")) {
// no redirect -> it's fine to continue
return false;
}
// there is a Location header, but it's not correct. we need to apply some workarounds...
QByteArray redirectBA = m_reply->rawHeader("Location");
if (redirectBA.size() == 0) {
// empty, yet present redirect header? WTF?
return false;
}
QString redirectStr = QString::fromUtf8(redirectBA);
if (redirectStr.startsWith("//")) {
/*
* IF the URL begins with //, we need to insert the URL scheme.
* See: https://bugreports.qt.io/browse/QTBUG-41061
* See: http://tools.ietf.org/html/rfc3986#section-4.2
*/
redirectStr = m_reply->url().scheme() + ":" + redirectStr;
} else if (redirectStr.startsWith("/")) {
/*
* IF the URL begins with /, we need to process it as a relative URL
*/
auto url = m_reply->url();
url.setPath(redirectStr, QUrl::TolerantMode);
redirectStr = url.toString();
}
/*
* Next, make sure the URL is parsed in tolerant mode. Qt doesn't parse the location header in tolerant mode, which causes issues.
* FIXME: report Qt bug for this
*/
redirect = QUrl(redirectStr, QUrl::TolerantMode);
if (!redirect.isValid()) {
qWarning() << "Failed to parse redirect URL:" << redirectStr;
downloadError(QNetworkReply::ProtocolFailure);
return false;
}
qDebug() << "Fixed location header:" << redirect;
} else {
qDebug() << "Location header:" << redirect;
}
m_url = QUrl(redirect.toString());
qDebug() << "Following redirect to " << m_url.toString();
startAction(m_network);
return true;
}
void Upload::downloadFinished() {
// handle HTTP redirection first
// very unlikely for post requests, still can happen
if (handleRedirect()) {
qDebug() << "Upload redirected:" << m_url.toString();
return;
}
// if the download failed before this point ...
if (m_state == State::Succeeded) {
qDebug() << "Upload failed but we are allowed to proceed:" << m_url.toString();
m_sink->abort();
m_reply.reset();
emit succeeded();
return;
} else if (m_state == State::Failed) {
qDebug() << "Upload failed in previous step:" << m_url.toString();
m_sink->abort();
m_reply.reset();
emit failed("");
return;
} else if (m_state == State::AbortedByUser) {
qDebug() << "Upload aborted in previous step:" << m_url.toString();
m_sink->abort();
m_reply.reset();
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";
m_state = m_sink->write(data);
}
// otherwise, finalize the whole graph
m_state = m_sink->finalize(*m_reply.get());
if (m_state != State::Succeeded) {
qDebug() << "Upload failed to finalize:" << m_url.toString();
m_sink->abort();
m_reply.reset();
emit failed("");
return;
}
m_reply.reset();
qDebug() << "Upload succeeded:" << m_url.toString();
emit succeeded();
}
void Upload::downloadReadyRead() {
if (m_state == State::Running) {
auto data = m_reply->readAll();
m_state = m_sink->write(data);
}
}
void Upload::executeTask() {
setStatus(tr("Uploading %1").arg(m_url.toString()));
if (m_state == State::AbortedByUser) {
qWarning() << "Attempt to start an aborted Upload:" << m_url.toString();
emit aborted();
return;
}
QNetworkRequest request(m_url);
m_state = m_sink->init(request);
switch (m_state) {
case State::Succeeded:
emitSucceeded();
qDebug() << "Upload cache hit " << m_url.toString();
return;
case State::Running:
qDebug() << "Uploading " << m_url.toString();
break;
case State::Inactive:
case State::Failed:
emitFailed("");
return;
case State::AbortedByUser:
emitAborted();
return;
}
request.setHeader(QNetworkRequest::UserAgentHeader, APPLICATION->getUserAgent().toUtf8());
if (APPLICATION->capabilities() & Application::SupportsFlame
&& request.url().host().contains("api.curseforge.com")) {
request.setRawHeader("x-api-key", APPLICATION->getFlameAPIKey().toUtf8());
}
//TODO other types of post requests ?
request.setHeader(QNetworkRequest::ContentTypeHeader, "application/json");
QNetworkReply* rep = m_network->post(request, m_post_data);
m_reply.reset(rep);
connect(rep, SIGNAL(downloadProgress(qint64, qint64)), SLOT(downloadProgress(qint64, qint64)));
connect(rep, SIGNAL(finished()), SLOT(downloadFinished()));
connect(rep, SIGNAL(error(QNetworkReply::NetworkError)), SLOT(downloadError(QNetworkReply::NetworkError)));
connect(rep, &QNetworkReply::sslErrors, this, &Upload::sslErrors);
connect(rep, &QNetworkReply::readyRead, this, &Upload::downloadReadyRead);
}
Upload::Ptr Upload::makeByteArray(QUrl url, QByteArray *output, QByteArray m_post_data) {
auto* up = new Upload();
up->m_url = std::move(url);
up->m_sink.reset(new ByteArraySink(output));
up->m_post_data = std::move(m_post_data);
return up;
}
} // Net
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