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-rw-r--r--logic/DerpUpdate.cpp377
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diff --git a/logic/DerpUpdate.cpp b/logic/DerpUpdate.cpp
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+/* Copyright 2013 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 "MultiMC.h"
+#include "DerpUpdate.h"
+
+#include <QtNetwork>
+
+#include <QFile>
+#include <QFileInfo>
+#include <QTextStream>
+#include <QDataStream>
+
+#include "BaseInstance.h"
+#include "lists/MinecraftVersionList.h"
+#include "DerpVersion.h"
+#include "DerpLibrary.h"
+#include "DerpInstance.h"
+#include "net/ForgeMirrors.h"
+#include "net/URLConstants.h"
+#include "assets/AssetsUtils.h"
+
+#include "pathutils.h"
+#include <JlCompress.h>
+
+DerpUpdate::DerpUpdate(BaseInstance *inst, bool only_prepare, QObject *parent)
+ : Task(parent), m_inst(inst), m_only_prepare(only_prepare)
+{
+}
+
+void DerpUpdate::executeTask()
+{
+ QString intendedVersion = m_inst->intendedVersionId();
+
+ // Make directories
+ QDir mcDir(m_inst->minecraftRoot());
+ if (!mcDir.exists() && !mcDir.mkpath("."))
+ {
+ emitFailed("Failed to create bin folder.");
+ return;
+ }
+
+ if (m_only_prepare)
+ {
+ prepareForLaunch();
+ return;
+ }
+
+ if (m_inst->shouldUpdate())
+ {
+ // Get a pointer to the version object that corresponds to the instance's version.
+ targetVersion = std::dynamic_pointer_cast<MinecraftVersion>(
+ MMC->minecraftlist()->findVersion(intendedVersion));
+ if (targetVersion == nullptr)
+ {
+ // don't do anything if it was invalid
+ emitFailed("The specified Minecraft version is invalid. Choose a different one.");
+ return;
+ }
+ versionFileStart();
+ }
+ else
+ {
+ jarlibStart();
+ }
+}
+
+void DerpUpdate::versionFileStart()
+{
+ QLOG_INFO() << m_inst->name() << ": getting version file.";
+ setStatus(tr("Getting the version files from Mojang..."));
+
+ QString urlstr = "http://" + URLConstants::AWS_DOWNLOAD_VERSIONS +
+ targetVersion->descriptor() + "/" + targetVersion->descriptor() + ".json";
+ auto job = new NetJob("Version index");
+ job->addNetAction(ByteArrayDownload::make(QUrl(urlstr)));
+ specificVersionDownloadJob.reset(job);
+ connect(specificVersionDownloadJob.get(), SIGNAL(succeeded()), SLOT(versionFileFinished()));
+ connect(specificVersionDownloadJob.get(), SIGNAL(failed()), SLOT(versionFileFailed()));
+ connect(specificVersionDownloadJob.get(), SIGNAL(progress(qint64, qint64)),
+ SIGNAL(progress(qint64, qint64)));
+ specificVersionDownloadJob->start();
+}
+
+void DerpUpdate::versionFileFinished()
+{
+ NetActionPtr DlJob = specificVersionDownloadJob->first();
+ DerpInstance *inst = (DerpInstance *)m_inst;
+
+ QString version_id = targetVersion->descriptor();
+ QString inst_dir = m_inst->instanceRoot();
+ // save the version file in $instanceId/version.json
+ {
+ QString version1 = PathCombine(inst_dir, "/version.json");
+ ensureFilePathExists(version1);
+ // FIXME: detect errors here, download to a temp file, swap
+ QSaveFile vfile1(version1);
+ if (!vfile1.open(QIODevice::Truncate | QIODevice::WriteOnly))
+ {
+ emitFailed("Can't open " + version1 + " for writing.");
+ return;
+ }
+ auto data = std::dynamic_pointer_cast<ByteArrayDownload>(DlJob)->m_data;
+ qint64 actual = 0;
+ if ((actual = vfile1.write(data)) != data.size())
+ {
+ emitFailed("Failed to write into " + version1 + ". Written " + actual + " out of " +
+ data.size() + '.');
+ return;
+ }
+ if (!vfile1.commit())
+ {
+ emitFailed("Can't commit changes to " + version1);
+ return;
+ }
+ }
+
+ // the version is downloaded safely. update is 'done' at this point
+ m_inst->setShouldUpdate(false);
+
+ // delete any custom version inside the instance (it's no longer relevant, we did an update)
+ QString custom = PathCombine(inst_dir, "/custom.json");
+ QFile finfo(custom);
+ if (finfo.exists())
+ {
+ finfo.remove();
+ }
+ inst->reloadFullVersion();
+
+ jarlibStart();
+}
+
+void DerpUpdate::versionFileFailed()
+{
+ emitFailed("Failed to download the version description. Try again.");
+}
+
+void DerpUpdate::assetIndexStart()
+{
+ setStatus(tr("Updating assets index..."));
+ DerpInstance *inst = (DerpInstance *)m_inst;
+ std::shared_ptr<DerpVersion> version = inst->getFullVersion();
+ QString assetName = version->assets;
+ QUrl indexUrl = "http://" + URLConstants::AWS_DOWNLOAD_INDEXES + assetName + ".json";
+ QString localPath = assetName + ".json";
+ auto job = new NetJob("Asset index for " + inst->name());
+
+ auto metacache = MMC->metacache();
+ auto entry = metacache->resolveEntry("asset_indexes", localPath);
+ job->addNetAction(CacheDownload::make(indexUrl, entry));
+ jarlibDownloadJob.reset(job);
+
+ connect(jarlibDownloadJob.get(), SIGNAL(succeeded()), SLOT(assetIndexFinished()));
+ connect(jarlibDownloadJob.get(), SIGNAL(failed()), SLOT(assetIndexFailed()));
+ connect(jarlibDownloadJob.get(), SIGNAL(progress(qint64, qint64)),
+ SIGNAL(progress(qint64, qint64)));
+
+ jarlibDownloadJob->start();
+}
+
+void DerpUpdate::assetIndexFinished()
+{
+ AssetsIndex index;
+
+ DerpInstance *inst = (DerpInstance *)m_inst;
+ std::shared_ptr<DerpVersion> version = inst->getFullVersion();
+ QString assetName = version->assets;
+
+ QString asset_fname = "assets/indexes/" + assetName + ".json";
+ if (!AssetsUtils::loadAssetsIndexJson(asset_fname, &index))
+ {
+ emitFailed("Failed to read the assets index!");
+ }
+
+ QList<Md5EtagDownloadPtr> dls;
+ for (auto object : index.objects.values())
+ {
+ QString objectName = object.hash.left(2) + "/" + object.hash;
+ QFileInfo objectFile("assets/objects/" + objectName);
+ if ((!objectFile.isFile()) || (objectFile.size() != object.size))
+ {
+ auto objectDL = MD5EtagDownload::make(
+ QUrl("http://" + URLConstants::RESOURCE_BASE + objectName),
+ objectFile.filePath());
+ objectDL->m_total_progress = object.size;
+ dls.append(objectDL);
+ }
+ }
+ if (dls.size())
+ {
+ setStatus(tr("Getting the assets files from Mojang..."));
+ auto job = new NetJob("Assets for " + inst->name());
+ for (auto dl : dls)
+ job->addNetAction(dl);
+ jarlibDownloadJob.reset(job);
+ connect(jarlibDownloadJob.get(), SIGNAL(succeeded()), SLOT(assetsFinished()));
+ connect(jarlibDownloadJob.get(), SIGNAL(failed()), SLOT(assetsFailed()));
+ connect(jarlibDownloadJob.get(), SIGNAL(progress(qint64, qint64)),
+ SIGNAL(progress(qint64, qint64)));
+ jarlibDownloadJob->start();
+ return;
+ }
+ assetsFinished();
+}
+
+void DerpUpdate::assetIndexFailed()
+{
+ emitFailed("Failed to download the assets index!");
+}
+
+void DerpUpdate::assetsFinished()
+{
+ prepareForLaunch();
+}
+
+void DerpUpdate::assetsFailed()
+{
+ emitFailed("Failed to download assets!");
+}
+
+void DerpUpdate::jarlibStart()
+{
+ setStatus(tr("Getting the library files from Mojang..."));
+ QLOG_INFO() << m_inst->name() << ": downloading libraries";
+ DerpInstance *inst = (DerpInstance *)m_inst;
+ bool successful = inst->reloadFullVersion();
+ if (!successful)
+ {
+ emitFailed("Failed to load the version description file. It might be "
+ "corrupted, missing or simply too new.");
+ return;
+ }
+
+ // Build a list of URLs that will need to be downloaded.
+ std::shared_ptr<DerpVersion> version = inst->getFullVersion();
+ // minecraft.jar for this version
+ {
+ QString version_id = version->id;
+ QString localPath = version_id + "/" + version_id + ".jar";
+ QString urlstr = "http://" + URLConstants::AWS_DOWNLOAD_VERSIONS + localPath;
+
+ auto job = new NetJob("Libraries for instance " + inst->name());
+
+ auto metacache = MMC->metacache();
+ auto entry = metacache->resolveEntry("versions", localPath);
+ job->addNetAction(CacheDownload::make(QUrl(urlstr), entry));
+
+ jarlibDownloadJob.reset(job);
+ }
+
+ auto libs = version->getActiveNativeLibs();
+ libs.append(version->getActiveNormalLibs());
+
+ auto metacache = MMC->metacache();
+ QList<ForgeXzDownloadPtr> ForgeLibs;
+ for (auto lib : libs)
+ {
+ if (lib->hint() == "local")
+ continue;
+
+ QString raw_storage = lib->storagePath();
+ QString raw_dl = lib->downloadUrl();
+
+ auto f = [&](QString storage, QString dl)
+ {
+ auto entry = metacache->resolveEntry("libraries", storage);
+ if (entry->stale)
+ {
+ if (lib->hint() == "forge-pack-xz")
+ {
+ ForgeLibs.append(ForgeXzDownload::make(storage, entry));
+ }
+ else
+ {
+ jarlibDownloadJob->addNetAction(CacheDownload::make(dl, entry));
+ }
+ }
+ };
+ if (raw_storage.contains("${arch}"))
+ {
+ QString cooked_storage = raw_storage;
+ QString cooked_dl = raw_dl;
+ f(cooked_storage.replace("${arch}", "32"), cooked_dl.replace("${arch}", "32"));
+ cooked_storage = raw_storage;
+ cooked_dl = raw_dl;
+ f(cooked_storage.replace("${arch}", "64"), cooked_dl.replace("${arch}", "64"));
+ }
+ else
+ {
+ f(raw_storage, raw_dl);
+ }
+ }
+ // TODO: think about how to propagate this from the original json file... or IF AT ALL
+ QString forgeMirrorList = "http://files.minecraftforge.net/mirror-brand.list";
+ if (!ForgeLibs.empty())
+ {
+ jarlibDownloadJob->addNetAction(
+ ForgeMirrors::make(ForgeLibs, jarlibDownloadJob, forgeMirrorList));
+ }
+
+ connect(jarlibDownloadJob.get(), SIGNAL(succeeded()), SLOT(jarlibFinished()));
+ connect(jarlibDownloadJob.get(), SIGNAL(failed()), SLOT(jarlibFailed()));
+ connect(jarlibDownloadJob.get(), SIGNAL(progress(qint64, qint64)),
+ SIGNAL(progress(qint64, qint64)));
+
+ jarlibDownloadJob->start();
+}
+
+void DerpUpdate::jarlibFinished()
+{
+ assetIndexStart();
+}
+
+void DerpUpdate::jarlibFailed()
+{
+ QStringList failed = jarlibDownloadJob->getFailedFiles();
+ QString failed_all = failed.join("\n");
+ emitFailed("Failed to download the following files:\n" + failed_all +
+ "\n\nPlease try again.");
+}
+
+void DerpUpdate::prepareForLaunch()
+{
+ setStatus(tr("Preparing for launch..."));
+ QLOG_INFO() << m_inst->name() << ": preparing for launch";
+ auto derp_inst = (DerpInstance *)m_inst;
+
+ // delete any leftovers, if they are present.
+ derp_inst->cleanupAfterRun();
+
+ QString natives_dir_raw = PathCombine(derp_inst->instanceRoot(), "natives/");
+ auto version = derp_inst->getFullVersion();
+ if (!version)
+ {
+ emitFailed("The version information for this instance is not complete. Try re-creating "
+ "it or changing the version.");
+ return;
+ }
+ /*
+ * emitFailed("Could not create the native library folder:\n" + natives_dir_raw +
+ "\nMake sure MultiMC has appropriate permissions and there is enough
+ space "
+ "on the storage device.");
+ */
+ for (auto lib : version->getActiveNativeLibs())
+ {
+ if (!lib->filesExist())
+ {
+ emitFailed("Native library is missing some files:\n" + lib->storagePath() +
+ "\n\nRun the instance at least once in online mode to get all the "
+ "required files.");
+ return;
+ }
+ if (!lib->extractTo(natives_dir_raw))
+ {
+ emitFailed("Could not extract the native library:\n" + lib->storagePath() + " to " +
+ natives_dir_raw +
+ "\n\nMake sure MultiMC has appropriate permissions and there is enough "
+ "space on the storage device.");
+ return;
+ }
+ }
+
+ emitSucceeded();
+}