Download and cache FML libs for legacy minecraft versions.

* minor fix for version filtering (1.5 no longer shows forge for 1.5.1 and 1.5.2)
* FML libs are downloaded to mods/minecraftforge/libs and cached
* FML libs are copied to instances which contain FML or forge

1 files changed, 168 insertions, 1 deletions

diff --git a/logic/LegacyUpdate.cpp b/logic/LegacyUpdate.cpp
index 5d82a76b..15c99234 100644
--- a/logic/LegacyUpdate.cpp
+++ b/logic/LegacyUpdate.cpp
@@ -26,9 +26,56 @@
 #include <JlCompress.h>
 #include "logger/QsLog.h"
 #include "logic/net/URLConstants.h"
+#include <QStringList>
 
 LegacyUpdate::LegacyUpdate(BaseInstance *inst, QObject *parent) : Task(parent), m_inst(inst)
 {
+	// 1.3 - 1.3.2
+	auto libs13 = QList<FMLlib>{
+		{"argo-2.25.jar", "bb672829fde76cb163004752b86b0484bd0a7f4b", false},
+		{"guava-12.0.1.jar", "b8e78b9af7bf45900e14c6f958486b6ca682195f", false},
+		{"asm-all-4.0.jar", "98308890597acb64047f7e896638e0d98753ae82", false}};
+
+	fmlLibsMapping["1.3.2"] = libs13;
+
+	auto libs14 = QList<FMLlib>{
+		{"argo-2.25.jar", "bb672829fde76cb163004752b86b0484bd0a7f4b", false},
+		{"guava-12.0.1.jar", "b8e78b9af7bf45900e14c6f958486b6ca682195f", false},
+		{"asm-all-4.0.jar", "98308890597acb64047f7e896638e0d98753ae82", false},
+		{"bcprov-jdk15on-147.jar", "b6f5d9926b0afbde9f4dbe3db88c5247be7794bb", false}};
+
+	fmlLibsMapping["1.4"] = libs14;
+	fmlLibsMapping["1.4.1"] = libs14;
+	fmlLibsMapping["1.4.2"] = libs14;
+	fmlLibsMapping["1.4.3"] = libs14;
+	fmlLibsMapping["1.4.4"] = libs14;
+	fmlLibsMapping["1.4.5"] = libs14;
+	fmlLibsMapping["1.4.6"] = libs14;
+	fmlLibsMapping["1.4.7"] = libs14;
+
+	fmlLibsMapping["1.5"] = QList<FMLlib>{
+		{"argo-small-3.2.jar", "58912ea2858d168c50781f956fa5b59f0f7c6b51", false},
+		{"guava-14.0-rc3.jar", "931ae21fa8014c3ce686aaa621eae565fefb1a6a", false},
+		{"asm-all-4.1.jar", "054986e962b88d8660ae4566475658469595ef58", false},
+		{"bcprov-jdk15on-148.jar", "960dea7c9181ba0b17e8bab0c06a43f0a5f04e65", true},
+		{"deobfuscation_data_1.5.zip", "5f7c142d53776f16304c0bbe10542014abad6af8", false},
+		{"scala-library.jar", "458d046151ad179c85429ed7420ffb1eaf6ddf85", true}};
+
+	fmlLibsMapping["1.5.1"] = QList<FMLlib>{
+		{"argo-small-3.2.jar", "58912ea2858d168c50781f956fa5b59f0f7c6b51", false},
+		{"guava-14.0-rc3.jar", "931ae21fa8014c3ce686aaa621eae565fefb1a6a", false},
+		{"asm-all-4.1.jar", "054986e962b88d8660ae4566475658469595ef58", false},
+		{"bcprov-jdk15on-148.jar", "960dea7c9181ba0b17e8bab0c06a43f0a5f04e65", true},
+		{"deobfuscation_data_1.5.1.zip", "22e221a0d89516c1f721d6cab056a7e37471d0a6", false},
+		{"scala-library.jar", "458d046151ad179c85429ed7420ffb1eaf6ddf85", true}};
+
+	fmlLibsMapping["1.5.2"] = QList<FMLlib>{
+		{"argo-small-3.2.jar", "58912ea2858d168c50781f956fa5b59f0f7c6b51", false},
+		{"guava-14.0-rc3.jar", "931ae21fa8014c3ce686aaa621eae565fefb1a6a", false},
+		{"asm-all-4.1.jar", "054986e962b88d8660ae4566475658469595ef58", false},
+		{"bcprov-jdk15on-148.jar", "960dea7c9181ba0b17e8bab0c06a43f0a5f04e65", true},
+		{"deobfuscation_data_1.5.2.zip", "446e55cd986582c70fcf12cb27bc00114c5adfd9", false},
+		{"scala-library.jar", "458d046151ad179c85429ed7420ffb1eaf6ddf85", true}};
 }
 
 void LegacyUpdate::executeTask()
@@ -50,10 +97,130 @@ void LegacyUpdate::executeTask()
 	else
 	{
 		*/
-	lwjglStart();
+	fmllibsStart();
 	//}
 }
 
+void LegacyUpdate::fmllibsStart()
+{
+	// Get the mod list
+	LegacyInstance *inst = (LegacyInstance *)m_inst;
+	auto modList = inst->jarModList();
+
+	bool forge_present = false;
+
+	QString version = inst->intendedVersionId();
+	if (!fmlLibsMapping.contains(version))
+	{
+		lwjglStart();
+		return;
+	}
+
+	auto &libList = fmlLibsMapping[version];
+
+	// determine if we need some libs for FML or forge
+	setStatus(tr("Checking for FML libraries..."));
+	for (unsigned i = 0; i < modList->size(); i++)
+	{
+		auto &mod = modList->operator[](i);
+
+		// do not use disabled mods.
+		if (!mod.enabled())
+			continue;
+
+		if (mod.type() != Mod::MOD_ZIPFILE)
+			continue;
+
+		if (mod.mmc_id().contains("forge", Qt::CaseInsensitive))
+		{
+			forge_present = true;
+			break;
+		}
+		if (mod.mmc_id().contains("fml", Qt::CaseInsensitive))
+		{
+			forge_present = true;
+			break;
+		}
+	}
+	// we don't...
+	if (!forge_present)
+	{
+		lwjglStart();
+		return;
+	}
+
+	// now check the lib folder inside the instance for files.
+	for (auto &lib : libList)
+	{
+		QFileInfo libInfo(PathCombine(inst->libDir(), lib.name));
+		if (libInfo.exists())
+			continue;
+		fmlLibsToProcess.append(lib);
+	}
+
+	// if everything is in place, there's nothing to do here...
+	if (fmlLibsToProcess.isEmpty())
+	{
+		lwjglStart();
+		return;
+	}
+
+	// download missing libs to our place
+	setStatus(tr("Dowloading FML libraries..."));
+	auto dljob = new NetJob("FML libraries");
+	auto metacache = MMC->metacache();
+	for (auto &lib : fmlLibsToProcess)
+	{
+		auto entry = metacache->resolveEntry("fmllibs", lib.name);
+		QString urlString = lib.ours ? URLConstants::FMLLIBS_OUR_BASE_URL + lib.name
+									 : URLConstants::FMLLIBS_FORGE_BASE_URL + lib.name;
+		dljob->addNetAction(CacheDownload::make(QUrl(urlString), entry));
+	}
+
+	connect(dljob, SIGNAL(succeeded()), SLOT(fmllibsFinished()));
+	connect(dljob, SIGNAL(failed()), SLOT(fmllibsFailed()));
+	connect(dljob, SIGNAL(progress(qint64, qint64)), SIGNAL(progress(qint64, qint64)));
+	legacyDownloadJob.reset(dljob);
+	legacyDownloadJob->start();
+}
+
+void LegacyUpdate::fmllibsFinished()
+{
+	legacyDownloadJob.reset();
+	if(!fmlLibsToProcess.isEmpty())
+	{
+		setStatus(tr("Copying FML libraries into the instance..."));
+		LegacyInstance *inst = (LegacyInstance *)m_inst;
+		auto metacache = MMC->metacache();
+		int index = 0;
+		for (auto &lib : fmlLibsToProcess)
+		{
+			progress(index, fmlLibsToProcess.size());
+			auto entry = metacache->resolveEntry("fmllibs", lib.name);
+			auto path = PathCombine(inst->libDir(), lib.name);
+			if(!ensureFilePathExists(path))
+			{
+				emitFailed(tr("Failed creating FML library folder inside the instance."));
+				return;
+			}
+			if (!QFile::copy(entry->getFullPath(), PathCombine(inst->libDir(), lib.name)))
+			{
+				emitFailed(tr("Failed copying Forge/FML library: %1.").arg(lib.name));
+				return;
+			}
+			index++;
+		}
+		progress(index, fmlLibsToProcess.size());
+	}
+	lwjglStart();
+}
+
+void LegacyUpdate::fmllibsFailed()
+{
+	emitFailed("Game update failed: it was impossible to fetch the required FML libraries.");
+	return;
+}
+
 void LegacyUpdate::lwjglStart()
 {
 	LegacyInstance *inst = (LegacyInstance *)m_inst;