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[FIX] Подарок читерам.

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Zaxar163 2019-09-24 17:50:24 +02:00
parent dea036a574
commit 555c6a6c0b
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GPG key ID: 1FE4F2E1F053831B
3 changed files with 14 additions and 145 deletions
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2
Launcher/src/main/java/pro/gravit/launcher/ClientLauncherWrapper.java
View file

@ -83,7 +83,7 @@ public static void main(String[] arguments) throws IOException, InterruptedExcep
}
Collections.addAll(args, MAGIC_ARG);
Collections.addAll(args, "-XX:+DisableAttachMechanism");
Collections.addAll(args, "-javaagent:".concat(pathLauncher).concat("=pr"));
Collections.addAll(args, "-javaagent:".concat(pathLauncher));
Collections.addAll(args, "-cp");
Collections.addAll(args, pathLauncher);
Collections.addAll(args, LauncherEngine.class.getName());

149
Launcher/src/main/java/pro/gravit/launcher/LauncherAgent.java
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@ -1,25 +1,11 @@
package pro.gravit.launcher;
import static org.objectweb.asm.Opcodes.ACONST_NULL;
import static org.objectweb.asm.Opcodes.ARETURN;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.lang.instrument.Instrumentation;
import java.nio.file.Path;
import java.util.ArrayList;
import java.util.List;
import java.util.Locale;
import java.util.jar.JarFile;
import org.objectweb.asm.ClassReader;
import org.objectweb.asm.ClassWriter;
import org.objectweb.asm.tree.ClassNode;
import org.objectweb.asm.tree.InsnNode;
import org.objectweb.asm.tree.MethodNode;
import cpw.mods.fml.SafeExitJVMLegacy;
import net.minecraftforge.fml.SafeExitJVM;
import pro.gravit.launcher.utils.NativeJVMHalt;
@ -52,138 +38,17 @@ public static void premain(String agentArgument, Instrumentation instrumentation
SafeExitJVM.class.getName();
NativeJVMHalt.class.getName();
NativeJVMHalt.initFunc();
isAgentStarted = true;
if (System.getProperty("java.vm.name").toUpperCase(Locale.US).contains("HOTSPOT"))
JVMHelper.checkStackTrace(LauncherAgent.class);
boolean bad = false;
try {
if (JVMHelper.OS_TYPE == JVMHelper.OS.MUSTDIE) {
boolean pb = true;
boolean rt = true;
if (agentArgument != null) {
String trimmedArg = agentArgument.trim();
if (!trimmedArg.isEmpty()) {
if (trimmedArg.contains("p")) pb = false;
if (trimmedArg.contains("r")) rt = false;
}
}
replaceClasses(pb, rt);
} else replaceClasses(false, false);
} catch (Error e) {
NativeJVMHalt.haltA(294);
throw e;
}
for (StackTraceElement e : new Throwable().getStackTrace())
if (Class.forName(e.getClassName()).getClassLoader() != Runtime.class.getClassLoader() && Class.forName(e.getClassName()) != LauncherAgent.class) bad = true;
} catch(Throwable e) { bad = true; }
if (bad) NativeJVMHalt.haltA(-17);
else isAgentStarted = true;
}
public static boolean isStarted() {
return isAgentStarted;
}
private static void replaceClasses(boolean pb, boolean rt) {
java.awt.Robot.class.getName();
List<java.lang.instrument.ClassDefinition> defs = new ArrayList<>();
if (rt) {
try {
defs.add(new java.lang.instrument.ClassDefinition(java.lang.Runtime.class, transformClass(java.lang.Runtime.class.getName(), getClassFile(java.lang.Runtime.class))));
} catch (Exception e) {
throw new Error(e);
}
}
if (pb) {
try {
defs.add(new java.lang.instrument.ClassDefinition(java.lang.ProcessBuilder.class, transformClass(java.lang.ProcessBuilder.class.getName(), getClassFile(java.lang.ProcessBuilder.class))));
} catch (Exception e) {
throw new Error(e);
}
}
try {
defs.add(new java.lang.instrument.ClassDefinition(java.awt.Robot.class, transformClass(java.awt.Robot.class.getName(), getClassFile(java.awt.Robot.class))));
} catch (Exception e) {
throw new Error(e);
}
try {
inst.redefineClasses(defs.toArray(new java.lang.instrument.ClassDefinition[0]));
} catch (Exception e) {
throw new Error(e);
}
}
/**
* @author https://github.com/Konloch/JVM-Sandbox
* Use ASM to modify the byte array
*/
private static byte[] transformClass(String className, byte[] classBytes) {
switch (className) {
case "java.lang.Runtime": {
ClassReader cr = new ClassReader(classBytes);
ClassNode cn = new ClassNode();
cr.accept(cn, ClassReader.EXPAND_FRAMES);
for (Object o : cn.methods.toArray()) {
MethodNode m = (MethodNode) o;
if (m.name.equals("exec")) {
m.instructions.insert(new InsnNode(ARETURN));
m.instructions.insert(new InsnNode(ACONST_NULL));
}
}
ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_FRAMES | ClassWriter.COMPUTE_MAXS);
cn.accept(cw);
return cw.toByteArray();
}
case "java.lang.ProcessBuilder": {
ClassReader cr = new ClassReader(classBytes);
ClassNode cn = new ClassNode();
cr.accept(cn, ClassReader.EXPAND_FRAMES);
for (Object o : cn.methods.toArray()) {
MethodNode m = (MethodNode) o;
if (m.name.equals("start")) {
m.instructions.insert(new InsnNode(ARETURN));
m.instructions.insert(new InsnNode(ACONST_NULL));
}
}
ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_FRAMES | ClassWriter.COMPUTE_MAXS);
cn.accept(cw);
return cw.toByteArray();
}
case "java.awt.Robot": {
ClassReader cr = new ClassReader(classBytes);
ClassNode cn = new ClassNode();
cr.accept(cn, ClassReader.EXPAND_FRAMES);
for (Object o : cn.methods.toArray()) {
MethodNode m = (MethodNode) o;
if (m.name.equals("createScreenCapture") || m.name.equals("getPixelColor") ||
m.name.equals("keyPress") || m.name.equals("keyRelease") ||
m.name.equals("mouseMove") || m.name.equals("mousePress") ||
m.name.equals("mouseWheel")) {
m.instructions.insert(new InsnNode(ARETURN));
m.instructions.insert(new InsnNode(ACONST_NULL));
}
}
ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_FRAMES | ClassWriter.COMPUTE_MAXS);
cn.accept(cw);
return cw.toByteArray();
}
}
return classBytes;
}
/**
* @param clazz
* @return array, respending this class in bytecode.
* @throws IOException
* @author https://github.com/Konloch/JVM-Sandbox
* Do not remove this method. Do not to cause classloading!
* Grab the byte array from the loaded Class object
*/
private static byte[] getClassFile(Class<?> clazz) throws IOException {
try (InputStream is = clazz.getResourceAsStream("/" + clazz.getName().replace('.', '/') + ".class");
ByteArrayOutputStream baos = new ByteArrayOutputStream()) {
int r;
byte[] buffer = new byte[8192];
while ((r = is.read(buffer)) >= 0) {
baos.write(buffer, 0, r);
}
return baos.toByteArray();
}
}
}

6
Launcher/src/main/java/pro/gravit/launcher/client/ClientLauncher.java
View file

@ -44,7 +44,6 @@
import pro.gravit.launcher.hwid.HWIDProvider;
import pro.gravit.launcher.managers.ClientGsonManager;
import pro.gravit.launcher.managers.ClientHookManager;
import pro.gravit.launcher.modules.events.PostInitPhase;
import pro.gravit.launcher.modules.events.PreConfigPhase;
import pro.gravit.launcher.profiles.ClientProfile;
import pro.gravit.launcher.profiles.PlayerProfile;
@ -55,6 +54,7 @@
import pro.gravit.launcher.serialize.HOutput;
import pro.gravit.launcher.serialize.stream.StreamObject;
import pro.gravit.launcher.utils.DirWatcher;
import pro.gravit.launcher.utils.NativeJVMHalt;
import pro.gravit.utils.PublicURLClassLoader;
import pro.gravit.utils.Version;
import pro.gravit.utils.helper.CommonHelper;
@ -463,6 +463,10 @@ public static void main(String... args) throws Throwable {
LauncherEngine.modulesManager.initModules(null);
initGson(LauncherEngine.modulesManager);
//Launcher.modulesManager.preInitModules();
if (!LauncherAgent.isStarted()) {
NativeJVMHalt.haltA(100);
return;
}
LauncherEngine.modulesManager.invokeEvent(new PreConfigPhase());
JVMHelper.verifySystemProperties(ClientLauncher.class, true);
EnvHelper.checkDangerousParams();