1 files changed, 381 insertions, 0 deletions
diff --git a/api/logic/minecraft/MojangVersionFormat.cpp b/api/logic/minecraft/MojangVersionFormat.cpp
new file mode 100644
index 00000000..34129c9e
--- /dev/null
+++ b/api/logic/minecraft/MojangVersionFormat.cpp
@@ -0,0 +1,381 @@
+#include "MojangVersionFormat.h"
+#include "onesix/OneSixVersionFormat.h"
+#include "MinecraftVersion.h"
+#include "VersionBuildError.h"
+#include "MojangDownloadInfo.h"
+
+#include "Json.h"
+using namespace Json;
+#include "ParseUtils.h"
+
+static const int CURRENT_MINIMUM_LAUNCHER_VERSION = 18;
+
+static MojangAssetIndexInfo::Ptr assetIndexFromJson (const QJsonObject &obj);
+static MojangDownloadInfo::Ptr downloadInfoFromJson (const QJsonObject &obj);
+static MojangLibraryDownloadInfo::Ptr libDownloadInfoFromJson (const QJsonObject &libObj);
+static QJsonObject assetIndexToJson (MojangAssetIndexInfo::Ptr assetidxinfo);
+static QJsonObject libDownloadInfoToJson (MojangLibraryDownloadInfo::Ptr libinfo);
+static QJsonObject downloadInfoToJson (MojangDownloadInfo::Ptr info);
+
+namespace Bits
+{
+static void readString(const QJsonObject &root, const QString &key, QString &variable)
+{
+	if (root.contains(key))
+	{
+		variable = requireString(root.value(key));
+	}
+}
+
+static void readDownloadInfo(MojangDownloadInfo::Ptr out, const QJsonObject &obj)
+{
+	// optional, not used
+	readString(obj, "path", out->path);
+	// required!
+	out->sha1 = requireString(obj, "sha1");
+	out->url = requireString(obj, "url");
+	out->size = requireInteger(obj, "size");
+}
+
+static void readAssetIndex(MojangAssetIndexInfo::Ptr out, const QJsonObject &obj)
+{
+	out->totalSize = requireInteger(obj, "totalSize");
+	out->id = requireString(obj, "id");
+	// out->known = true;
+}
+}
+
+MojangDownloadInfo::Ptr downloadInfoFromJson(const QJsonObject &obj)
+{
+	auto out = std::make_shared<MojangDownloadInfo>();
+	Bits::readDownloadInfo(out, obj);
+	return out;
+}
+
+MojangAssetIndexInfo::Ptr assetIndexFromJson(const QJsonObject &obj)
+{
+	auto out = std::make_shared<MojangAssetIndexInfo>();
+	Bits::readDownloadInfo(out, obj);
+	Bits::readAssetIndex(out, obj);
+	return out;
+}
+
+QJsonObject downloadInfoToJson(MojangDownloadInfo::Ptr info)
+{
+	QJsonObject out;
+	if(!info->path.isNull())
+	{
+		out.insert("path", info->path);
+	}
+	out.insert("sha1", info->sha1);
+	out.insert("size", info->size);
+	out.insert("url", info->url);
+	return out;
+}
+
+MojangLibraryDownloadInfo::Ptr libDownloadInfoFromJson(const QJsonObject &libObj)
+{
+	auto out = std::make_shared<MojangLibraryDownloadInfo>();
+	auto dlObj = requireObject(libObj.value("downloads"));
+	if(dlObj.contains("artifact"))
+	{
+		out->artifact = downloadInfoFromJson(requireObject(dlObj, "artifact"));
+	}
+	if(dlObj.contains("classifiers"))
+	{
+		auto classifiersObj = requireObject(dlObj, "classifiers");
+		for(auto iter = classifiersObj.begin(); iter != classifiersObj.end(); iter++)
+		{
+			auto classifier = iter.key();
+			auto classifierObj = requireObject(iter.value());
+			out->classifiers[classifier] = downloadInfoFromJson(classifierObj);
+		}
+	}
+	return out;
+}
+
+QJsonObject libDownloadInfoToJson(MojangLibraryDownloadInfo::Ptr libinfo)
+{
+	QJsonObject out;
+	if(libinfo->artifact)
+	{
+		out.insert("artifact", downloadInfoToJson(libinfo->artifact));
+	}
+	if(libinfo->classifiers.size())
+	{
+		QJsonObject classifiersOut;
+		for(auto iter = libinfo->classifiers.begin(); iter != libinfo->classifiers.end(); iter++)
+		{
+			classifiersOut.insert(iter.key(), downloadInfoToJson(iter.value()));
+		}
+		out.insert("classifiers", classifiersOut);
+	}
+	return out;
+}
+
+QJsonObject assetIndexToJson(MojangAssetIndexInfo::Ptr info)
+{
+	QJsonObject out;
+	if(!info->path.isNull())
+	{
+		out.insert("path", info->path);
+	}
+	out.insert("sha1", info->sha1);
+	out.insert("size", info->size);
+	out.insert("url", info->url);
+	out.insert("totalSize", info->totalSize);
+	out.insert("id", info->id);
+	return out;
+}
+
+void MojangVersionFormat::readVersionProperties(const QJsonObject &in, VersionFile *out)
+{
+	Bits::readString(in, "id", out->minecraftVersion);
+	Bits::readString(in, "mainClass", out->mainClass);
+	Bits::readString(in, "minecraftArguments", out->minecraftArguments);
+	if(out->minecraftArguments.isEmpty())
+	{
+		QString processArguments;
+		Bits::readString(in, "processArguments", processArguments);
+		QString toCompare = processArguments.toLower();
+		if (toCompare == "legacy")
+		{
+			out->minecraftArguments = " ${auth_player_name} ${auth_session}";
+		}
+		else if (toCompare == "username_session")
+		{
+			out->minecraftArguments = "--username ${auth_player_name} --session ${auth_session}";
+		}
+		else if (toCompare == "username_session_version")
+		{
+			out->minecraftArguments = "--username ${auth_player_name} --session ${auth_session} --version ${profile_name}";
+		}
+		else if (!toCompare.isEmpty())
+		{
+			out->addProblem(PROBLEM_ERROR, QObject::tr("processArguments is set to unknown value '%1'").arg(processArguments));
+		}
+	}
+	Bits::readString(in, "type", out->type);
+
+	Bits::readString(in, "assets", out->assets);
+	if(in.contains("assetIndex"))
+	{
+		out->mojangAssetIndex = assetIndexFromJson(requireObject(in, "assetIndex"));
+	}
+	else if (!out->assets.isNull())
+	{
+		out->mojangAssetIndex = std::make_shared<MojangAssetIndexInfo>(out->assets);
+	}
+
+	out->m_releaseTime = timeFromS3Time(in.value("releaseTime").toString(""));
+	out->m_updateTime = timeFromS3Time(in.value("time").toString(""));
+
+	if (in.contains("minimumLauncherVersion"))
+	{
+		out->minimumLauncherVersion = requireInteger(in.value("minimumLauncherVersion"));
+		if (out->minimumLauncherVersion > CURRENT_MINIMUM_LAUNCHER_VERSION)
+		{
+			out->addProblem(
+				PROBLEM_WARNING,
+				QObject::tr("The 'minimumLauncherVersion' value of this version (%1) is higher than supported by MultiMC (%2). It might not work properly!")
+					.arg(out->minimumLauncherVersion)
+					.arg(CURRENT_MINIMUM_LAUNCHER_VERSION));
+		}
+	}
+	if(in.contains("downloads"))
+	{
+		auto downloadsObj = requireObject(in, "downloads");
+		for(auto iter = downloadsObj.begin(); iter != downloadsObj.end(); iter++)
+		{
+			auto classifier = iter.key();
+			auto classifierObj = requireObject(iter.value());
+			out->mojangDownloads[classifier] = downloadInfoFromJson(classifierObj);
+		}
+	}
+}
+
+VersionFilePtr MojangVersionFormat::versionFileFromJson(const QJsonDocument &doc, const QString &filename)
+{
+	VersionFilePtr out(new VersionFile());
+	if (doc.isEmpty() || doc.isNull())
+	{
+		throw JSONValidationError(filename + " is empty or null");
+	}
+	if (!doc.isObject())
+	{
+		throw JSONValidationError(filename + " is not an object");
+	}
+
+	QJsonObject root = doc.object();
+
+	readVersionProperties(root, out.get());
+
+	out->name = "Minecraft";
+	out->fileId = "net.minecraft";
+	out->version = out->minecraftVersion;
+	out->filename = filename;
+
+
+	if (root.contains("libraries"))
+	{
+		for (auto libVal : requireArray(root.value("libraries")))
+		{
+			auto libObj = requireObject(libVal);
+
+			auto lib = MojangVersionFormat::libraryFromJson(libObj, filename);
+			out->libraries.append(lib);
+		}
+	}
+	return out;
+}
+
+void MojangVersionFormat::writeVersionProperties(const VersionFile* in, QJsonObject& out)
+{
+	writeString(out, "id", in->minecraftVersion);
+	writeString(out, "mainClass", in->mainClass);
+	writeString(out, "minecraftArguments", in->minecraftArguments);
+	writeString(out, "type", in->type);
+	if(!in->m_releaseTime.isNull())
+	{
+		writeString(out, "releaseTime", timeToS3Time(in->m_releaseTime));
+	}
+	if(!in->m_updateTime.isNull())
+	{
+		writeString(out, "time", timeToS3Time(in->m_updateTime));
+	}
+	if(in->minimumLauncherVersion != -1)
+	{
+		out.insert("minimumLauncherVersion", in->minimumLauncherVersion);
+	}
+	writeString(out, "assets", in->assets);
+	if(in->mojangAssetIndex && in->mojangAssetIndex->known)
+	{
+		out.insert("assetIndex", assetIndexToJson(in->mojangAssetIndex));
+	}
+	if(in->mojangDownloads.size())
+	{
+		QJsonObject downloadsOut;
+		for(auto iter = in->mojangDownloads.begin(); iter != in->mojangDownloads.end(); iter++)
+		{
+			downloadsOut.insert(iter.key(), downloadInfoToJson(iter.value()));
+		}
+		out.insert("downloads", downloadsOut);
+	}
+}
+
+QJsonDocument MojangVersionFormat::versionFileToJson(const VersionFilePtr &patch)
+{
+	QJsonObject root;
+	writeVersionProperties(patch.get(), root);
+	if (!patch->libraries.isEmpty())
+	{
+		QJsonArray array;
+		for (auto value: patch->libraries)
+		{
+			array.append(MojangVersionFormat::libraryToJson(value.get()));
+		}
+		root.insert("libraries", array);
+	}
+
+	// write the contents to a json document.
+	{
+		QJsonDocument out;
+		out.setObject(root);
+		return out;
+	}
+}
+
+LibraryPtr MojangVersionFormat::libraryFromJson(const QJsonObject &libObj, const QString &filename)
+{
+	LibraryPtr out(new Library());
+	if (!libObj.contains("name"))
+	{
+		throw JSONValidationError(filename + "contains a library that doesn't have a 'name' field");
+	}
+	out->m_name = libObj.value("name").toString();
+
+	Bits::readString(libObj, "url", out->m_repositoryURL);
+	if (libObj.contains("extract"))
+	{
+		out->m_hasExcludes = true;
+		auto extractObj = requireObject(libObj.value("extract"));
+		for (auto excludeVal : requireArray(extractObj.value("exclude")))
+		{
+			out->m_extractExcludes.append(requireString(excludeVal));
+		}
+	}
+	if (libObj.contains("natives"))
+	{
+		QJsonObject nativesObj = requireObject(libObj.value("natives"));
+		for (auto it = nativesObj.begin(); it != nativesObj.end(); ++it)
+		{
+			if (!it.value().isString())
+			{
+				qWarning() << filename << "contains an invalid native (skipping)";
+			}
+			OpSys opSys = OpSys_fromString(it.key());
+			if (opSys != Os_Other)
+			{
+				out->m_nativeClassifiers[opSys] = it.value().toString();
+			}
+		}
+	}
+	if (libObj.contains("rules"))
+	{
+		out->applyRules = true;
+		out->m_rules = rulesFromJsonV4(libObj);
+	}
+	if (libObj.contains("downloads"))
+	{
+		out->m_mojangDownloads = libDownloadInfoFromJson(libObj);
+	}
+	return out;
+}
+
+QJsonObject MojangVersionFormat::libraryToJson(Library *library)
+{
+	QJsonObject libRoot;
+	libRoot.insert("name", (QString)library->m_name);
+	if (!library->m_repositoryURL.isEmpty())
+	{
+		libRoot.insert("url", library->m_repositoryURL);
+	}
+	if (library->isNative())
+	{
+		QJsonObject nativeList;
+		auto iter = library->m_nativeClassifiers.begin();
+		while (iter != library->m_nativeClassifiers.end())
+		{
+			nativeList.insert(OpSys_toString(iter.key()), iter.value());
+			iter++;
+		}
+		libRoot.insert("natives", nativeList);
+		if (library->m_extractExcludes.size())
+		{
+			QJsonArray excludes;
+			QJsonObject extract;
+			for (auto exclude : library->m_extractExcludes)
+			{
+				excludes.append(exclude);
+			}
+			extract.insert("exclude", excludes);
+			libRoot.insert("extract", extract);
+		}
+	}
+	if (library->m_rules.size())
+	{
+		QJsonArray allRules;
+		for (auto &rule : library->m_rules)
+		{
+			QJsonObject ruleObj = rule->toJson();
+			allRules.append(ruleObj);
+		}
+		libRoot.insert("rules", allRules);
+	}
+	if(library->m_mojangDownloads)
+	{
+		auto downloadsObj = libDownloadInfoToJson(library->m_mojangDownloads);
+		libRoot.insert("downloads", downloadsObj);
+	}
+	return libRoot;
+}