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pollymc/launcher/minecraft/mod/LocalModParseTask.cpp

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#include "LocalModParseTask.h"
#include <QJsonDocument>
#include <QJsonObject>
#include <QJsonArray>
#include <QJsonValue>
#include <quazip.h>
#include <quazipfile.h>
#include <toml.h>
#include "settings/INIFile.h"
#include "FileSystem.h"
namespace {
// NEW format
// https://github.com/MinecraftForge/FML/wiki/FML-mod-information-file/6f62b37cea040daf350dc253eae6326dd9c822c3
// OLD format:
// https://github.com/MinecraftForge/FML/wiki/FML-mod-information-file/5bf6a2d05145ec79387acc0d45c958642fb049fc
std::shared_ptr<ModDetails> ReadMCModInfo(QByteArray contents)
{
auto getInfoFromArray = [&](QJsonArray arr)->std::shared_ptr<ModDetails>
{
if (!arr.at(0).isObject()) {
return nullptr;
}
std::shared_ptr<ModDetails> details = std::make_shared<ModDetails>();
auto firstObj = arr.at(0).toObject();
details->mod_id = firstObj.value("modid").toString();
auto name = firstObj.value("name").toString();
// NOTE: ignore stupid example mods copies where the author didn't even bother to change the name
if(name != "Example Mod") {
details->name = name;
}
details->version = firstObj.value("version").toString();
details->updateurl = firstObj.value("updateUrl").toString();
auto homeurl = firstObj.value("url").toString().trimmed();
if(!homeurl.isEmpty())
{
// fix up url.
if (!homeurl.startsWith("http://") && !homeurl.startsWith("https://") && !homeurl.startsWith("ftp://"))
{
homeurl.prepend("http://");
}
}
details->homeurl = homeurl;
details->description = firstObj.value("description").toString();
QJsonArray authors = firstObj.value("authorList").toArray();
if (authors.size() == 0) {
// FIXME: what is the format of this? is there any?
authors = firstObj.value("authors").toArray();
}
for (auto author: authors)
{
details->authors.append(author.toString());
}
details->credits = firstObj.value("credits").toString();
return details;
};
QJsonParseError jsonError;
QJsonDocument jsonDoc = QJsonDocument::fromJson(contents, &jsonError);
// this is the very old format that had just the array
if (jsonDoc.isArray())
{
return getInfoFromArray(jsonDoc.array());
}
else if (jsonDoc.isObject())
{
auto val = jsonDoc.object().value("modinfoversion");
if(val.isUndefined()) {
val = jsonDoc.object().value("modListVersion");
}
int version = val.toDouble();
if (version != 2)
{
qCritical() << "BAD stuff happened to mod json:";
qCritical() << contents;
return nullptr;
}
auto arrVal = jsonDoc.object().value("modlist");
if(arrVal.isUndefined()) {
arrVal = jsonDoc.object().value("modList");
}
if (arrVal.isArray())
{
return getInfoFromArray(arrVal.toArray());
}
}
return nullptr;
}
// https://github.com/MinecraftForge/Documentation/blob/5ab4ba6cf9abc0ac4c0abd96ad187461aefd72af/docs/gettingstarted/structuring.md
std::shared_ptr<ModDetails> ReadMCModTOML(QByteArray contents)
{
std::shared_ptr<ModDetails> details = std::make_shared<ModDetails>();
char errbuf[200];
// top-level table
toml_table_t* tomlData = toml_parse(contents.data(), errbuf, sizeof(errbuf));
if(!tomlData)
{
return nullptr;
}
// array defined by [[mods]]
toml_array_t* tomlModsArr = toml_array_in(tomlData, "mods");
// we only really care about the first element, since multiple mods in one file is not supported by us at the moment
toml_table_t* tomlModsTable0 = toml_table_at(tomlModsArr, 0);
// mandatory properties - always in [[mods]]
toml_datum_t modIdDatum = toml_string_in(tomlModsTable0, "modId");
if(modIdDatum.ok)
{
details->mod_id = modIdDatum.u.s;
// library says this is required for strings
free(modIdDatum.u.s);
}
toml_datum_t versionDatum = toml_string_in(tomlModsTable0, "version");
if(versionDatum.ok)
{
details->version = versionDatum.u.s;
free(versionDatum.u.s);
}
toml_datum_t displayNameDatum = toml_string_in(tomlModsTable0, "displayName");
if(displayNameDatum.ok)
{
details->name = displayNameDatum.u.s;
free(displayNameDatum.u.s);
}
toml_datum_t descriptionDatum = toml_string_in(tomlModsTable0, "description");
if(descriptionDatum.ok)
{
details->description = descriptionDatum.u.s;
free(descriptionDatum.u.s);
}
// optional properties - can be in the root table or [[mods]]
toml_datum_t authorsDatum = toml_string_in(tomlData, "authors");
QString authors = "";
if(authorsDatum.ok)
{
authors = authorsDatum.u.s;
free(authorsDatum.u.s);
}
else
{
authorsDatum = toml_string_in(tomlModsTable0, "authors");
if(authorsDatum.ok)
{
authors = authorsDatum.u.s;
free(authorsDatum.u.s);
}
}
if(!authors.isEmpty())
{
// author information is stored as a string now, not a list
details->authors.append(authors);
}
// is credits even used anywhere? including this for completion/parity with old data version
toml_datum_t creditsDatum = toml_string_in(tomlData, "credits");
QString credits = "";
if(creditsDatum.ok)
{
authors = creditsDatum.u.s;
free(creditsDatum.u.s);
}
else
{
creditsDatum = toml_string_in(tomlModsTable0, "credits");
if(creditsDatum.ok)
{
credits = creditsDatum.u.s;
free(creditsDatum.u.s);
}
}
details->credits = credits;
toml_datum_t homeurlDatum = toml_string_in(tomlData, "displayURL");
QString homeurl = "";
if(homeurlDatum.ok)
{
homeurl = homeurlDatum.u.s;
free(homeurlDatum.u.s);
}
else
{
homeurlDatum = toml_string_in(tomlModsTable0, "displayURL");
if(homeurlDatum.ok)
{
homeurl = homeurlDatum.u.s;
free(homeurlDatum.u.s);
}
}
if(!homeurl.isEmpty())
{
// fix up url.
if (!homeurl.startsWith("http://") && !homeurl.startsWith("https://") && !homeurl.startsWith("ftp://"))
{
homeurl.prepend("http://");
}
}
details->homeurl = homeurl;
// this seems to be recursive, so it should free everything
toml_free(tomlData);
return details;
}
// https://fabricmc.net/wiki/documentation:fabric_mod_json
std::shared_ptr<ModDetails> ReadFabricModInfo(QByteArray contents)
{
QJsonParseError jsonError;
QJsonDocument jsonDoc = QJsonDocument::fromJson(contents, &jsonError);
auto object = jsonDoc.object();
auto schemaVersion = object.contains("schemaVersion") ? object.value("schemaVersion").toInt(0) : 0;
std::shared_ptr<ModDetails> details = std::make_shared<ModDetails>();
details->mod_id = object.value("id").toString();
details->version = object.value("version").toString();
details->name = object.contains("name") ? object.value("name").toString() : details->mod_id;
details->description = object.value("description").toString();
if (schemaVersion >= 1)
{
QJsonArray authors = object.value("authors").toArray();
for (auto author: authors)
{
if(author.isObject()) {
details->authors.append(author.toObject().value("name").toString());
}
else {
details->authors.append(author.toString());
}
}
if (object.contains("contact"))
{
QJsonObject contact = object.value("contact").toObject();
if (contact.contains("homepage"))
{
details->homeurl = contact.value("homepage").toString();
}
}
}
return details;
}
std::shared_ptr<ModDetails> ReadForgeInfo(QByteArray contents)
{
std::shared_ptr<ModDetails> details = std::make_shared<ModDetails>();
// Read the data
details->name = "Minecraft Forge";
details->mod_id = "Forge";
details->homeurl = "http://www.minecraftforge.net/forum/";
INIFile ini;
if (!ini.loadFile(contents))
return details;
QString major = ini.get("forge.major.number", "0").toString();
QString minor = ini.get("forge.minor.number", "0").toString();
QString revision = ini.get("forge.revision.number", "0").toString();
QString build = ini.get("forge.build.number", "0").toString();
details->version = major + "." + minor + "." + revision + "." + build;
return details;
}
std::shared_ptr<ModDetails> ReadLiteModInfo(QByteArray contents)
{
std::shared_ptr<ModDetails> details = std::make_shared<ModDetails>();
QJsonParseError jsonError;
QJsonDocument jsonDoc = QJsonDocument::fromJson(contents, &jsonError);
auto object = jsonDoc.object();
if (object.contains("name"))
{
details->mod_id = details->name = object.value("name").toString();
}
if (object.contains("version"))
{
details->version = object.value("version").toString("");
}
else
{
details->version = object.value("revision").toString("");
}
details->mcversion = object.value("mcversion").toString();
auto author = object.value("author").toString();
if(!author.isEmpty()) {
details->authors.append(author);
}
details->description = object.value("description").toString();
details->homeurl = object.value("url").toString();
return details;
}
}
LocalModParseTask::LocalModParseTask(int token, Mod::ModType type, const QFileInfo& modFile):
m_token(token),
m_type(type),
m_modFile(modFile),
m_result(new Result())
{
}
void LocalModParseTask::processAsZip()
{
QuaZip zip(m_modFile.filePath());
if (!zip.open(QuaZip::mdUnzip))
return;
QuaZipFile file(&zip);
if (zip.setCurrentFile("META-INF/mods.toml"))
{
if (!file.open(QIODevice::ReadOnly))
{
zip.close();
return;
}
m_result->details = ReadMCModTOML(file.readAll());
file.close();
// to replace ${file.jarVersion} with the actual version, as needed
if (m_result->details && m_result->details->version == "${file.jarVersion}")
{
if (zip.setCurrentFile("META-INF/MANIFEST.MF"))
{
if (!file.open(QIODevice::ReadOnly))
{
zip.close();
return;
}
// quick and dirty line-by-line parser
auto manifestLines = file.readAll().split('\n');
QString manifestVersion = "";
for (auto &line : manifestLines)
{
if (QString(line).startsWith("Implementation-Version: "))
{
manifestVersion = QString(line).remove("Implementation-Version: ");
break;
}
}
// some mods use ${projectversion} in their build.gradle, causing this mess to show up in MANIFEST.MF
// also keep with forge's behavior of setting the version to "NONE" if none is found
if (manifestVersion.contains("task ':jar' property 'archiveVersion'") || manifestVersion == "")
{
manifestVersion = "NONE";
}
m_result->details->version = manifestVersion;
file.close();
}
}
zip.close();
return;
}
else if (zip.setCurrentFile("mcmod.info"))
{
if (!file.open(QIODevice::ReadOnly))
{
zip.close();
return;
}
m_result->details = ReadMCModInfo(file.readAll());
file.close();
zip.close();
return;
}
else if (zip.setCurrentFile("fabric.mod.json"))
{
if (!file.open(QIODevice::ReadOnly))
{
zip.close();
return;
}
m_result->details = ReadFabricModInfo(file.readAll());
file.close();
zip.close();
return;
}
else if (zip.setCurrentFile("forgeversion.properties"))
{
if (!file.open(QIODevice::ReadOnly))
{
zip.close();
return;
}
m_result->details = ReadForgeInfo(file.readAll());
file.close();
zip.close();
return;
}
zip.close();
}
void LocalModParseTask::processAsFolder()
{
QFileInfo mcmod_info(FS::PathCombine(m_modFile.filePath(), "mcmod.info"));
if (mcmod_info.isFile())
{
QFile mcmod(mcmod_info.filePath());
if (!mcmod.open(QIODevice::ReadOnly))
return;
auto data = mcmod.readAll();
if (data.isEmpty() || data.isNull())
return;
m_result->details = ReadMCModInfo(data);
}
}
void LocalModParseTask::processAsLitemod()
{
QuaZip zip(m_modFile.filePath());
if (!zip.open(QuaZip::mdUnzip))
return;
QuaZipFile file(&zip);
if (zip.setCurrentFile("litemod.json"))
{
if (!file.open(QIODevice::ReadOnly))
{
zip.close();
return;
}
m_result->details = ReadLiteModInfo(file.readAll());
file.close();
}
zip.close();
}
void LocalModParseTask::run()
{
switch(m_type)
{
case Mod::MOD_ZIPFILE:
processAsZip();
break;
case Mod::MOD_FOLDER:
processAsFolder();
break;
case Mod::MOD_LITEMOD:
processAsLitemod();
break;
default:
break;
}
emit finished(m_token);
}
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