pollymc/launcher/minecraft/OneSixVersionFormat.cpp
flow 4166d9ab7b
fix: give error when components have bad uids
This allows other code to reject proceeding when the UID is bad, which
is generally a good idea. :p

Co-authored-by: Sefa Eyeoglu <contact@scrumplex.net>
Signed-off-by: flow <flowlnlnln@gmail.com>
2023-02-02 17:11:24 -03:00

475 lines
15 KiB
C++

// SPDX-License-Identifier: GPL-3.0-only
/*
* PolyMC - Minecraft Launcher
* Copyright (C) 2022 Sefa Eyeoglu <contact@scrumplex.net>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, version 3.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
* This file incorporates work covered by the following copyright and
* permission notice:
*
* Copyright 2013-2021 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 "OneSixVersionFormat.h"
#include <Json.h>
#include "minecraft/Agent.h"
#include "minecraft/ParseUtils.h"
#include <minecraft/MojangVersionFormat.h>
#include <QRegularExpression>
using namespace Json;
static void readString(const QJsonObject &root, const QString &key, QString &variable)
{
if (root.contains(key))
{
variable = requireString(root.value(key));
}
}
LibraryPtr OneSixVersionFormat::libraryFromJson(ProblemContainer & problems, const QJsonObject &libObj, const QString &filename)
{
LibraryPtr out = MojangVersionFormat::libraryFromJson(problems, libObj, filename);
readString(libObj, "MMC-hint", out->m_hint);
readString(libObj, "MMC-absulute_url", out->m_absoluteURL);
readString(libObj, "MMC-absoluteUrl", out->m_absoluteURL);
readString(libObj, "MMC-filename", out->m_filename);
readString(libObj, "MMC-displayname", out->m_displayname);
return out;
}
QJsonObject OneSixVersionFormat::libraryToJson(Library *library)
{
QJsonObject libRoot = MojangVersionFormat::libraryToJson(library);
if (!library->m_absoluteURL.isEmpty())
libRoot.insert("MMC-absoluteUrl", library->m_absoluteURL);
if (!library->m_hint.isEmpty())
libRoot.insert("MMC-hint", library->m_hint);
if (!library->m_filename.isEmpty())
libRoot.insert("MMC-filename", library->m_filename);
if (!library->m_displayname.isEmpty())
libRoot.insert("MMC-displayname", library->m_displayname);
return libRoot;
}
VersionFilePtr OneSixVersionFormat::versionFileFromJson(const QJsonDocument &doc, const QString &filename, const bool requireOrder)
{
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();
Meta::MetadataVersion formatVersion = Meta::parseFormatVersion(root, false);
switch(formatVersion)
{
case Meta::MetadataVersion::InitialRelease:
break;
case Meta::MetadataVersion::Invalid:
throw JSONValidationError(filename + " does not contain a recognizable version of the metadata format.");
}
if (requireOrder)
{
if (root.contains("order"))
{
out->order = requireInteger(root.value("order"));
}
else
{
// FIXME: evaluate if we don't want to throw exceptions here instead
qCritical() << filename << "doesn't contain an order field";
}
}
out->name = root.value("name").toString();
if(root.contains("uid"))
{
out->uid = root.value("uid").toString();
}
else
{
out->uid = root.value("fileId").toString();
}
const QRegularExpression valid_uid_regex{ QRegularExpression::anchoredPattern(QStringLiteral(R"(\w+(?:\.\w+)*)")) };
if (!valid_uid_regex.match(out->uid).hasMatch()) {
qCritical() << "The component's 'uid' contains illegal characters! UID:" << out->uid;
out->addProblem(
ProblemSeverity::Error,
QObject::tr("The component's 'uid' contains illegal characters! This can cause security issues.")
);
}
out->version = root.value("version").toString();
MojangVersionFormat::readVersionProperties(root, out.get());
// added for legacy Minecraft window embedding, TODO: remove
readString(root, "appletClass", out->appletClass);
if (root.contains("+tweakers"))
{
for (auto tweakerVal : requireArray(root.value("+tweakers")))
{
out->addTweakers.append(requireString(tweakerVal));
}
}
if (root.contains("+traits"))
{
for (auto tweakerVal : requireArray(root.value("+traits")))
{
out->traits.insert(requireString(tweakerVal));
}
}
if (root.contains("+jvmArgs"))
{
for (auto arg : requireArray(root.value("+jvmArgs")))
{
out->addnJvmArguments.append(requireString(arg));
}
}
if (root.contains("jarMods"))
{
for (auto libVal : requireArray(root.value("jarMods")))
{
QJsonObject libObj = requireObject(libVal);
// parse the jarmod
auto lib = OneSixVersionFormat::jarModFromJson(*out, libObj, filename);
// and add to jar mods
out->jarMods.append(lib);
}
}
else if (root.contains("+jarMods")) // DEPRECATED: old style '+jarMods' are only here for backwards compatibility
{
for (auto libVal : requireArray(root.value("+jarMods")))
{
QJsonObject libObj = requireObject(libVal);
// parse the jarmod
auto lib = OneSixVersionFormat::plusJarModFromJson(*out, libObj, filename, out->name);
// and add to jar mods
out->jarMods.append(lib);
}
}
if (root.contains("mods"))
{
for (auto libVal : requireArray(root.value("mods")))
{
QJsonObject libObj = requireObject(libVal);
// parse the jarmod
auto lib = OneSixVersionFormat::modFromJson(*out, libObj, filename);
// and add to jar mods
out->mods.append(lib);
}
}
auto readLibs = [&](const char * which, QList<LibraryPtr> & outList)
{
for (auto libVal : requireArray(root.value(which)))
{
QJsonObject libObj = requireObject(libVal);
// parse the library
auto lib = libraryFromJson(*out, libObj, filename);
outList.append(lib);
}
};
bool hasPlusLibs = root.contains("+libraries");
bool hasLibs = root.contains("libraries");
if (hasPlusLibs && hasLibs)
{
out->addProblem(ProblemSeverity::Warning,
QObject::tr("Version file has both '+libraries' and 'libraries'. This is no longer supported."));
readLibs("libraries", out->libraries);
readLibs("+libraries", out->libraries);
}
else if (hasLibs)
{
readLibs("libraries", out->libraries);
}
else if(hasPlusLibs)
{
readLibs("+libraries", out->libraries);
}
if(root.contains("mavenFiles")) {
readLibs("mavenFiles", out->mavenFiles);
}
if(root.contains("+agents")) {
for (auto agentVal : requireArray(root.value("+agents")))
{
QJsonObject agentObj = requireObject(agentVal);
auto lib = libraryFromJson(*out, agentObj, filename);
QString arg = "";
readString(agentObj, "argument", arg);
AgentPtr agent(new Agent(lib, arg));
out->agents.append(agent);
}
}
// if we have mainJar, just use it
if(root.contains("mainJar"))
{
QJsonObject libObj = requireObject(root, "mainJar");
out->mainJar = libraryFromJson(*out, libObj, filename);
}
// else reconstruct it from downloads and id ... if that's available
else if(!out->minecraftVersion.isEmpty())
{
auto lib = std::make_shared<Library>();
lib->setRawName(GradleSpecifier(QString("com.mojang:minecraft:%1:client").arg(out->minecraftVersion)));
// we have a reliable client download, use it.
if(out->mojangDownloads.contains("client"))
{
auto LibDLInfo = std::make_shared<MojangLibraryDownloadInfo>();
LibDLInfo->artifact = out->mojangDownloads["client"];
lib->setMojangDownloadInfo(LibDLInfo);
}
// we got nothing...
else
{
out->addProblem(
ProblemSeverity::Error,
QObject::tr("URL for the main jar could not be determined - Mojang removed the server that we used as fallback.")
);
}
out->mainJar = lib;
}
if (root.contains("requires"))
{
Meta::parseRequires(root, &out->requires);
}
QString dependsOnMinecraftVersion = root.value("mcVersion").toString();
if(!dependsOnMinecraftVersion.isEmpty())
{
Meta::Require mcReq;
mcReq.uid = "net.minecraft";
mcReq.equalsVersion = dependsOnMinecraftVersion;
if (out->requires.count(mcReq) == 0)
{
out->requires.insert(mcReq);
}
}
if (root.contains("conflicts"))
{
Meta::parseRequires(root, &out->conflicts);
}
if (root.contains("volatile"))
{
out->m_volatile = requireBoolean(root, "volatile");
}
/* removed features that shouldn't be used */
if (root.contains("tweakers"))
{
out->addProblem(ProblemSeverity::Error, QObject::tr("Version file contains unsupported element 'tweakers'"));
}
if (root.contains("-libraries"))
{
out->addProblem(ProblemSeverity::Error, QObject::tr("Version file contains unsupported element '-libraries'"));
}
if (root.contains("-tweakers"))
{
out->addProblem(ProblemSeverity::Error, QObject::tr("Version file contains unsupported element '-tweakers'"));
}
if (root.contains("-minecraftArguments"))
{
out->addProblem(ProblemSeverity::Error, QObject::tr("Version file contains unsupported element '-minecraftArguments'"));
}
if (root.contains("+minecraftArguments"))
{
out->addProblem(ProblemSeverity::Error, QObject::tr("Version file contains unsupported element '+minecraftArguments'"));
}
return out;
}
QJsonDocument OneSixVersionFormat::versionFileToJson(const VersionFilePtr &patch)
{
QJsonObject root;
writeString(root, "name", patch->name);
writeString(root, "uid", patch->uid);
writeString(root, "version", patch->version);
Meta::serializeFormatVersion(root, Meta::MetadataVersion::InitialRelease);
MojangVersionFormat::writeVersionProperties(patch.get(), root);
if(patch->mainJar)
{
root.insert("mainJar", libraryToJson(patch->mainJar.get()));
}
writeString(root, "appletClass", patch->appletClass);
writeStringList(root, "+tweakers", patch->addTweakers);
writeStringList(root, "+traits", patch->traits.values());
writeStringList(root, "+jvmArgs", patch->addnJvmArguments);
if (!patch->agents.isEmpty())
{
QJsonArray array;
for (auto value: patch->agents)
{
QJsonObject agentOut = OneSixVersionFormat::libraryToJson(value->library().get());
if (!value->argument().isEmpty())
agentOut.insert("argument", value->argument());
array.append(agentOut);
}
root.insert("+agents", array);
}
if (!patch->libraries.isEmpty())
{
QJsonArray array;
for (auto value: patch->libraries)
{
array.append(OneSixVersionFormat::libraryToJson(value.get()));
}
root.insert("libraries", array);
}
if (!patch->mavenFiles.isEmpty())
{
QJsonArray array;
for (auto value: patch->mavenFiles)
{
array.append(OneSixVersionFormat::libraryToJson(value.get()));
}
root.insert("mavenFiles", array);
}
if (!patch->jarMods.isEmpty())
{
QJsonArray array;
for (auto value: patch->jarMods)
{
array.append(OneSixVersionFormat::jarModtoJson(value.get()));
}
root.insert("jarMods", array);
}
if (!patch->mods.isEmpty())
{
QJsonArray array;
for (auto value: patch->jarMods)
{
array.append(OneSixVersionFormat::modtoJson(value.get()));
}
root.insert("mods", array);
}
if(!patch->requires.empty())
{
Meta::serializeRequires(root, &patch->requires, "requires");
}
if(!patch->conflicts.empty())
{
Meta::serializeRequires(root, &patch->conflicts, "conflicts");
}
if(patch->m_volatile)
{
root.insert("volatile", true);
}
// write the contents to a json document.
{
QJsonDocument out;
out.setObject(root);
return out;
}
}
LibraryPtr OneSixVersionFormat::plusJarModFromJson(
ProblemContainer & problems,
const QJsonObject &libObj,
const QString &filename,
const QString &originalName
) {
LibraryPtr out(new Library());
if (!libObj.contains("name"))
{
throw JSONValidationError(filename +
"contains a jarmod that doesn't have a 'name' field");
}
// just make up something unique on the spot for the library name.
auto uuid = QUuid::createUuid();
QString id = uuid.toString().remove('{').remove('}');
out->setRawName(GradleSpecifier("org.multimc.jarmods:" + id + ":1"));
// filename override is the old name
out->setFilename(libObj.value("name").toString());
// it needs to be local, it is stored in the instance jarmods folder
out->setHint("local");
// read the original name if present - some versions did not set it
// it is the original jar mod filename before it got renamed at the point of addition
auto displayName = libObj.value("originalName").toString();
if(displayName.isEmpty())
{
auto fixed = originalName;
fixed.remove(" (jar mod)");
out->setDisplayName(fixed);
}
else
{
out->setDisplayName(displayName);
}
return out;
}
LibraryPtr OneSixVersionFormat::jarModFromJson(ProblemContainer & problems, const QJsonObject& libObj, const QString& filename)
{
return libraryFromJson(problems, libObj, filename);
}
QJsonObject OneSixVersionFormat::jarModtoJson(Library *jarmod)
{
return libraryToJson(jarmod);
}
LibraryPtr OneSixVersionFormat::modFromJson(ProblemContainer & problems, const QJsonObject& libObj, const QString& filename)
{
return libraryFromJson(problems, libObj, filename);
}
QJsonObject OneSixVersionFormat::modtoJson(Library *jarmod)
{
return libraryToJson(jarmod);
}