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-rw-r--r--api/logic/updater/DownloadTask.cpp169
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diff --git a/api/logic/updater/DownloadTask.cpp b/api/logic/updater/DownloadTask.cpp
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+/* Copyright 2013-2014 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 "DownloadTask.h"
+
+#include "updater/UpdateChecker.h"
+#include "GoUpdate.h"
+#include "net/NetJob.h"
+
+#include <QFile>
+#include <QTemporaryDir>
+#include <QCryptographicHash>
+
+namespace GoUpdate
+{
+
+DownloadTask::DownloadTask(Status status, QString target, QObject *parent)
+ : Task(parent), m_updateFilesDir(target)
+{
+ m_status = status;
+
+ m_updateFilesDir.setAutoRemove(false);
+}
+
+void DownloadTask::executeTask()
+{
+ loadVersionInfo();
+}
+
+void DownloadTask::loadVersionInfo()
+{
+ setStatus(tr("Loading version information..."));
+
+ m_currentVersionFileListDownload.reset();
+ m_newVersionFileListDownload.reset();
+
+ NetJob *netJob = new NetJob("Version Info");
+
+ // Find the index URL.
+ QUrl newIndexUrl = QUrl(m_status.newRepoUrl).resolved(QString::number(m_status.newVersionId) + ".json");
+ qDebug() << m_status.newRepoUrl << " turns into " << newIndexUrl;
+
+ netJob->addNetAction(m_newVersionFileListDownload = ByteArrayDownload::make(newIndexUrl));
+
+ // If we have a current version URL, get that one too.
+ if (!m_status.currentRepoUrl.isEmpty())
+ {
+ QUrl cIndexUrl = QUrl(m_status.currentRepoUrl).resolved(QString::number(m_status.currentVersionId) + ".json");
+ netJob->addNetAction(m_currentVersionFileListDownload = ByteArrayDownload::make(cIndexUrl));
+ qDebug() << m_status.currentRepoUrl << " turns into " << cIndexUrl;
+ }
+
+ // connect signals and start the job
+ connect(netJob, &NetJob::succeeded, this, &DownloadTask::processDownloadedVersionInfo);
+ connect(netJob, &NetJob::failed, this, &DownloadTask::vinfoDownloadFailed);
+ m_vinfoNetJob.reset(netJob);
+ netJob->start();
+}
+
+void DownloadTask::vinfoDownloadFailed()
+{
+ // Something failed. We really need the second download (current version info), so parse
+ // downloads anyways as long as the first one succeeded.
+ if (m_newVersionFileListDownload->m_status != Job_Failed)
+ {
+ processDownloadedVersionInfo();
+ return;
+ }
+
+ // TODO: Give a more detailed error message.
+ qCritical() << "Failed to download version info files.";
+ emitFailed(tr("Failed to download version info files."));
+}
+
+void DownloadTask::processDownloadedVersionInfo()
+{
+ VersionFileList m_currentVersionFileList;
+ VersionFileList m_newVersionFileList;
+
+ setStatus(tr("Reading file list for new version..."));
+ qDebug() << "Reading file list for new version...";
+ QString error;
+ if (!parseVersionInfo(m_newVersionFileListDownload->m_data, m_newVersionFileList, error))
+ {
+ qCritical() << error;
+ emitFailed(error);
+ return;
+ }
+
+ // if we have the current version info, use it.
+ if (m_currentVersionFileListDownload && m_currentVersionFileListDownload->m_status != Job_Failed)
+ {
+ setStatus(tr("Reading file list for current version..."));
+ qDebug() << "Reading file list for current version...";
+ // if this fails, it's not a complete loss.
+ QString error;
+ if(!parseVersionInfo( m_currentVersionFileListDownload->m_data, m_currentVersionFileList, error))
+ {
+ qDebug() << error << "This is not a fatal error.";
+ }
+ }
+
+ // We don't need this any more.
+ m_currentVersionFileListDownload.reset();
+ m_newVersionFileListDownload.reset();
+ m_vinfoNetJob.reset();
+
+ setStatus(tr("Processing file lists - figuring out how to install the update..."));
+
+ // make a new netjob for the actual update files
+ NetJobPtr netJob (new NetJob("Update Files"));
+
+ // fill netJob and operationList
+ if (!processFileLists(m_currentVersionFileList, m_newVersionFileList, m_status.rootPath, m_updateFilesDir.path(), netJob, m_operations))
+ {
+ emitFailed(tr("Failed to process update lists..."));
+ return;
+ }
+
+ // Now start the download.
+ QObject::connect(netJob.get(), &NetJob::succeeded, this, &DownloadTask::fileDownloadFinished);
+ QObject::connect(netJob.get(), &NetJob::progress, this, &DownloadTask::fileDownloadProgressChanged);
+ QObject::connect(netJob.get(), &NetJob::failed, this, &DownloadTask::fileDownloadFailed);
+
+ setStatus(tr("Downloading %1 update files.").arg(QString::number(netJob->size())));
+ qDebug() << "Begin downloading update files to" << m_updateFilesDir.path();
+ m_filesNetJob = netJob;
+ m_filesNetJob->start();
+}
+
+void DownloadTask::fileDownloadFinished()
+{
+ emitSucceeded();
+}
+
+void DownloadTask::fileDownloadFailed(QString reason)
+{
+ qCritical() << "Failed to download update files:" << reason;
+ emitFailed(tr("Failed to download update files: %1").arg(reason));
+}
+
+void DownloadTask::fileDownloadProgressChanged(qint64 current, qint64 total)
+{
+ setProgress(current, total);
+}
+
+QString DownloadTask::updateFilesDir()
+{
+ return m_updateFilesDir.path();
+}
+
+OperationList DownloadTask::operations()
+{
+ return m_operations;
+}
+
+} \ No newline at end of file