From 5fdf73a2ffd7d46f9de423e78cd27fe69687bc72 Mon Sep 17 00:00:00 2001 From: Sefa Eyeoglu Date: Mon, 26 Jun 2023 11:19:53 +0200 Subject: [PATCH] Merge pull request #1274 from TheKodeToad/java-signature --- launcher/Application.cpp | 2 +- launcher/launch/steps/CheckJava.cpp | 15 ++++++++++----- launcher/launch/steps/CheckJava.h | 2 +- launcher/minecraft/MinecraftInstance.cpp | 2 +- 4 files changed, 13 insertions(+), 8 deletions(-) diff --git a/launcher/Application.cpp b/launcher/Application.cpp index 724e6e44d..1d97a5f2e 100644 --- a/launcher/Application.cpp +++ b/launcher/Application.cpp @@ -594,7 +594,7 @@ Application::Application(int &argc, char **argv) : QApplication(argc, argv) // Java Settings m_settings->registerSetting("JavaPath", ""); - m_settings->registerSetting("JavaTimestamp", 0); + m_settings->registerSetting("JavaSignature", ""); m_settings->registerSetting("JavaArchitecture", ""); m_settings->registerSetting("JavaRealArchitecture", ""); m_settings->registerSetting("JavaVersion", ""); diff --git a/launcher/launch/steps/CheckJava.cpp b/launcher/launch/steps/CheckJava.cpp index f01875861..7d697ba96 100644 --- a/launcher/launch/steps/CheckJava.cpp +++ b/launcher/launch/steps/CheckJava.cpp @@ -81,15 +81,20 @@ void CheckJava::executeTask() } QFileInfo javaInfo(realJavaPath); - qlonglong javaUnixTime = javaInfo.lastModified().toMSecsSinceEpoch(); - auto storedUnixTime = settings->get("JavaTimestamp").toLongLong(); + qint64 javaUnixTime = javaInfo.lastModified().toMSecsSinceEpoch(); + auto storedSignature = settings->get("JavaSignature").toString(); auto storedArchitecture = settings->get("JavaArchitecture").toString(); auto storedRealArchitecture = settings->get("JavaRealArchitecture").toString(); auto storedVersion = settings->get("JavaVersion").toString(); auto storedVendor = settings->get("JavaVendor").toString(); - m_javaUnixTime = javaUnixTime; + + QCryptographicHash hash(QCryptographicHash::Sha1); + hash.addData(QByteArray::number(javaUnixTime)); + hash.addData(m_javaPath.toUtf8()); + m_javaSignature = hash.result().toHex(); + // if timestamps are not the same, or something is missing, check! - if (javaUnixTime != storedUnixTime || storedVersion.size() == 0 + if (m_javaSignature != storedSignature || storedVersion.size() == 0 || storedArchitecture.size() == 0 || storedRealArchitecture.size() == 0 || storedVendor.size() == 0) { @@ -140,7 +145,7 @@ void CheckJava::checkJavaFinished(JavaCheckResult result) instance->settings()->set("JavaArchitecture", result.mojangPlatform); instance->settings()->set("JavaRealArchitecture", result.realPlatform); instance->settings()->set("JavaVendor", result.javaVendor); - instance->settings()->set("JavaTimestamp", m_javaUnixTime); + instance->settings()->set("JavaSignature", m_javaSignature); emitSucceeded(); return; } diff --git a/launcher/launch/steps/CheckJava.h b/launcher/launch/steps/CheckJava.h index d084b1321..bbf06b7c7 100644 --- a/launcher/launch/steps/CheckJava.h +++ b/launcher/launch/steps/CheckJava.h @@ -40,6 +40,6 @@ private: private: QString m_javaPath; - qlonglong m_javaUnixTime; + QString m_javaSignature; JavaCheckerPtr m_JavaChecker; }; diff --git a/launcher/minecraft/MinecraftInstance.cpp b/launcher/minecraft/MinecraftInstance.cpp index f8ed5214e..aab930de0 100644 --- a/launcher/minecraft/MinecraftInstance.cpp +++ b/launcher/minecraft/MinecraftInstance.cpp @@ -148,7 +148,7 @@ void MinecraftInstance::loadSpecificSettings() m_settings->registerOverride(global_settings->getSetting("IgnoreJavaCompatibility"), javaOrLocation); // special! - m_settings->registerPassthrough(global_settings->getSetting("JavaTimestamp"), javaOrLocation); + m_settings->registerPassthrough(global_settings->getSetting("JavaSignature"), javaOrLocation); m_settings->registerPassthrough(global_settings->getSetting("JavaArchitecture"), javaOrLocation); m_settings->registerPassthrough(global_settings->getSetting("JavaRealArchitecture"), javaOrLocation); m_settings->registerPassthrough(global_settings->getSetting("JavaVersion"), javaOrLocation);