335 lines
12 KiB
C++
335 lines
12 KiB
C++
// SPDX-License-Identifier: GPL-3.0-only
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/*
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* Prism Launcher - Minecraft Launcher
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* Copyright (c) 2022 flowln <flowlnlnln@gmail.com>
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* Copyright (C) 2022 Sefa Eyeoglu <contact@scrumplex.net>
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* Copyright (C) 2023 TheKodeToad <TheKodeToad@proton.me>
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* Copyright (C) 2023 Rachel Powers <508861+Ryex@users.noreply.github.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, version 3.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*
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* This file incorporates work covered by the following copyright and
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* permission notice:
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*
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* Copyright 2013-2021 MultiMC Contributors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "NetRequest.h"
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#include <QUrl>
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#include <QDateTime>
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#include <QFileInfo>
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#include <memory>
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#if defined(LAUNCHER_APPLICATION)
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#include "Application.h"
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#endif
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#include "BuildConfig.h"
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#include "net/NetAction.h"
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#include "MMCTime.h"
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#include "StringUtils.h"
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namespace Net {
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void NetRequest::addValidator(Validator* v)
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{
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m_sink->addValidator(v);
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}
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void NetRequest::executeTask()
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{
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init();
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setStatus(tr("Requesting %1").arg(StringUtils::truncateUrlHumanFriendly(m_url, 80)));
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if (getState() == Task::State::AbortedByUser) {
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qCWarning(logCat) << getUid().toString() << "Attempt to start an aborted Request:" << m_url.toString();
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emitAborted();
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return;
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}
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QNetworkRequest request(m_url);
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m_state = m_sink->init(request);
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switch (m_state) {
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case State::Succeeded:
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qCDebug(logCat) << getUid().toString() << "Request cache hit " << m_url.toString();
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emit succeeded();
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emit finished();
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return;
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case State::Running:
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qCDebug(logCat) << getUid().toString() << "Runninng " << m_url.toString();
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break;
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case State::Inactive:
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case State::Failed:
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emitFailed();
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return;
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case State::AbortedByUser:
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emitAborted();
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return;
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}
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#if defined(LAUNCHER_APPLICATION)
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auto user_agent = APPLICATION->getUserAgent();
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#else
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auto user_agent = BuildConfig.USER_AGENT;
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#endif
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request.setHeader(QNetworkRequest::UserAgentHeader, user_agent.toUtf8());
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for (auto& header_proxy : m_headerProxies) {
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header_proxy->writeHeaders(request);
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}
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// TODO remove duplication
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#if QT_VERSION >= QT_VERSION_CHECK(5, 15, 0)
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request.setTransferTimeout();
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#endif
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m_last_progress_time = m_clock.now();
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m_last_progress_bytes = 0;
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QNetworkReply* rep = getReply(request);
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if (rep == nullptr) // it failed
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return;
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m_reply.reset(rep);
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connect(rep, &QNetworkReply::downloadProgress, this, &NetRequest::downloadProgress);
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connect(rep, &QNetworkReply::finished, this, &NetRequest::downloadFinished);
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#if QT_VERSION >= QT_VERSION_CHECK(5, 15, 0) // QNetworkReply::errorOccurred added in 5.15
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connect(rep, &QNetworkReply::errorOccurred, this, &NetRequest::downloadError);
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#else
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connect(rep, QOverload<QNetworkReply::NetworkError>::of(&QNetworkReply::error), this, &NetRequest::downloadError);
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#endif
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connect(rep, &QNetworkReply::sslErrors, this, &NetRequest::sslErrors);
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connect(rep, &QNetworkReply::readyRead, this, &NetRequest::downloadReadyRead);
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}
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void NetRequest::downloadProgress(qint64 bytesReceived, qint64 bytesTotal)
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{
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auto now = m_clock.now();
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auto elapsed = now - m_last_progress_time;
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// use milliseconds for speed precision
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auto elapsed_ms = std::chrono::duration_cast<std::chrono::milliseconds>(elapsed);
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auto bytes_received_since = bytesReceived - m_last_progress_bytes;
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auto dl_speed_bps = (double)bytes_received_since / elapsed_ms.count() * 1000;
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auto remaining_time_s = (bytesTotal - bytesReceived) / dl_speed_bps;
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//: Current amount of bytes downloaded, out of the total amount of bytes in the download
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QString dl_progress =
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tr("%1 / %2").arg(StringUtils::humanReadableFileSize(bytesReceived)).arg(StringUtils::humanReadableFileSize(bytesTotal));
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QString dl_speed_str;
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if (elapsed_ms.count() > 0) {
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auto str_eta = bytesTotal > 0 ? Time::humanReadableDuration(remaining_time_s) : tr("unknown");
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//: Download speed, in bytes per second (remaining download time in parenthesis)
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dl_speed_str = tr("%1 /s (%2)").arg(StringUtils::humanReadableFileSize(dl_speed_bps)).arg(str_eta);
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} else {
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//: Download speed at 0 bytes per second
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dl_speed_str = tr("0 B/s");
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}
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setDetails(dl_progress + "\n" + dl_speed_str);
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setProgress(bytesReceived, bytesTotal);
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}
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void NetRequest::downloadError(QNetworkReply::NetworkError error)
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{
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if (error == QNetworkReply::OperationCanceledError) {
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qCCritical(logCat) << getUid().toString() << "Aborted " << m_url.toString();
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m_state = State::Failed;
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} else {
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if (m_options & Option::AcceptLocalFiles) {
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if (m_sink->hasLocalData()) {
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m_state = State::Succeeded;
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return;
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}
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}
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// error happened during download.
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qCCritical(logCat) << getUid().toString() << "Failed " << m_url.toString() << " with reason " << error;
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m_state = State::Failed;
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}
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}
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void NetRequest::sslErrors(const QList<QSslError>& errors)
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{
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int i = 1;
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for (auto error : errors) {
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qCCritical(logCat) << getUid().toString() << "Request" << m_url.toString() << "SSL Error #" << i << " : " << error.errorString();
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auto cert = error.certificate();
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qCCritical(logCat) << getUid().toString() << "Certificate in question:\n" << cert.toText();
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i++;
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}
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}
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auto NetRequest::handleRedirect() -> bool
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{
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QUrl redirect = m_reply->header(QNetworkRequest::LocationHeader).toUrl();
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if (!redirect.isValid()) {
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if (!m_reply->hasRawHeader("Location")) {
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// no redirect -> it's fine to continue
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return false;
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}
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// there is a Location header, but it's not correct. we need to apply some workarounds...
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QByteArray redirectBA = m_reply->rawHeader("Location");
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if (redirectBA.size() == 0) {
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// empty, yet present redirect header? WTF?
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return false;
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}
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QString redirectStr = QString::fromUtf8(redirectBA);
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if (redirectStr.startsWith("//")) {
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/*
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* IF the URL begins with //, we need to insert the URL scheme.
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* See: https://bugreports.qt.io/browse/QTBUG-41061
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* See: http://tools.ietf.org/html/rfc3986#section-4.2
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*/
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redirectStr = m_reply->url().scheme() + ":" + redirectStr;
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} else if (redirectStr.startsWith("/")) {
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/*
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* IF the URL begins with /, we need to process it as a relative URL
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*/
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auto url = m_reply->url();
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url.setPath(redirectStr, QUrl::TolerantMode);
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redirectStr = url.toString();
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}
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/*
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* Next, make sure the URL is parsed in tolerant mode. Qt doesn't parse the location header in tolerant mode, which causes issues.
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* FIXME: report Qt bug for this
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*/
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redirect = QUrl(redirectStr, QUrl::TolerantMode);
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if (!redirect.isValid()) {
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qCWarning(logCat) << getUid().toString() << "Failed to parse redirect URL:" << redirectStr;
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downloadError(QNetworkReply::ProtocolFailure);
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return false;
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}
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qCDebug(logCat) << getUid().toString() << "Fixed location header:" << redirect;
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} else {
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qCDebug(logCat) << getUid().toString() << "Location header:" << redirect;
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}
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m_url = QUrl(redirect.toString());
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qCDebug(logCat) << getUid().toString() << "Following redirect to " << m_url.toString();
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startAction(m_network);
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return true;
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}
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void NetRequest::downloadFinished()
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{
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// handle HTTP redirection first
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if (handleRedirect()) {
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qCDebug(logCat) << getUid().toString() << "Request redirected:" << m_url.toString();
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return;
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}
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// if the download failed before this point ...
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if (m_state == State::Succeeded) // pretend to succeed so we continue processing :)
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{
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qCDebug(logCat) << getUid().toString() << "Request failed but we are allowed to proceed:" << m_url.toString();
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m_sink->abort();
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m_reply.reset();
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emit succeeded();
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emit finished();
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return;
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} else if (m_state == State::Failed) {
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qCDebug(logCat) << getUid().toString() << "Request failed in previous step:" << m_url.toString();
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m_sink->abort();
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m_reply.reset();
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emit failed("");
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emit finished();
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return;
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} else if (m_state == State::AbortedByUser) {
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qCDebug(logCat) << getUid().toString() << "Request aborted in previous step:" << m_url.toString();
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m_sink->abort();
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m_reply.reset();
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emit aborted();
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emit finished();
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return;
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}
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// make sure we got all the remaining data, if any
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auto data = m_reply->readAll();
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if (data.size()) {
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qCDebug(logCat) << getUid().toString() << "Writing extra" << data.size() << "bytes";
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m_state = m_sink->write(data);
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if (m_state != State::Succeeded) {
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qCDebug(logCat) << getUid().toString() << "Request failed to write:" << m_url.toString();
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m_sink->abort();
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emit failed("");
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emit finished();
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return;
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}
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}
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// otherwise, finalize the whole graph
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m_state = m_sink->finalize(*m_reply.get());
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if (m_state != State::Succeeded) {
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qCDebug(logCat) << getUid().toString() << "Request failed to finalize:" << m_url.toString();
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m_sink->abort();
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m_reply.reset();
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emit failed("");
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emit finished();
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return;
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}
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m_reply.reset();
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qCDebug(logCat) << getUid().toString() << "Request succeeded:" << m_url.toString();
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emit succeeded();
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emit finished();
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}
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void NetRequest::downloadReadyRead()
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{
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if (m_state == State::Running) {
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auto data = m_reply->readAll();
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m_state = m_sink->write(data);
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if (m_state == State::Failed) {
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qCCritical(logCat) << getUid().toString() << "Failed to process response chunk";
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}
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// qDebug() << "Request" << m_url.toString() << "gained" << data.size() << "bytes";
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} else {
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qCCritical(logCat) << getUid().toString() << "Cannot write download data! illegal status " << m_status;
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}
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}
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auto NetRequest::abort() -> bool
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{
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m_state = State::AbortedByUser;
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if (m_reply) {
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#if QT_VERSION >= QT_VERSION_CHECK(5, 15, 0) // QNetworkReply::errorOccurred added in 5.15
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disconnect(m_reply.get(), &QNetworkReply::errorOccurred, nullptr, nullptr);
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#else
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disconnect(m_reply.get(), QOverload<QNetworkReply::NetworkError>::of(&QNetworkReply::error), nullptr, nullptr);
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#endif
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m_reply->abort();
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}
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return true;
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}
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} // namespace Net
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