/
RemappingPool.java
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/
RemappingPool.java
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package javassist;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.util.ArrayList;
import nallar.collections.PartiallySynchronizedMap;
import nallar.tickthreading.Log;
import nallar.tickthreading.patcher.remapping.ByteSource;
import nallar.tickthreading.patcher.remapping.StringExtractor;
import nallar.tickthreading.patcher.remapping.Transformer;
import nallar.tickthreading.util.ReflectUtil;
public class RemappingPool extends ClassPool {
private final PartiallySynchronizedMap<String, CtClass> srgClasses = new PartiallySynchronizedMap<String, CtClass>();
public boolean isSrg = false;
public static boolean exclude(final String className) {
return className.startsWith("java.") || className.startsWith("javax.") || className.startsWith("sun.") || className.startsWith("com.google");
}
public boolean setSrgFor(String className) {
byte[] bytes = getBytes(className);
if (bytes == null) {
return isSrg;
}
return isSrg = classIsSrgObfuscated(bytes, className);
}
private static final String target = "net/minecraft/";
public static boolean classIsSrgObfuscated(byte[] bytes, String name) {
if (bytes == null) {
return false;
}
for (String entry : StringExtractor.getStrings(bytes)) {
if (entry.contains(target) && !entry.contains("server/MinecraftServer") && !entry.contains("client/Minecraft") && !entry.contains("network/packet/IPacketHandler")) {
return true;
}
}
return false;
}
@Override
protected void cacheCtClass(String className, CtClass c, boolean dynamic) {
if (isSrg && !exclude(className)) {
return;
}
super.cacheCtClass(className, c, dynamic);
}
@Override
public CtClass getCached(String className) {
if (isSrg && !exclude(className)) {
return srgClasses.get(className);
}
return super.getCached(className);
}
private byte[] getBytes(String name) {
if (!name.trim().equals(name)) {
Log.severe("Broken name? " + name + " different when trimmed.", new Throwable());
}
CtClass ctClass = super.getCached(name);
if (ctClass != null && ctClass.isModified()) {
try {
boolean oldSrg = isSrg;
if (oldSrg) {
isSrg = false;
}
byte[] bytes = ctClass.toBytecode();
ctClass.defrost();
if (oldSrg) {
isSrg = true;
}
return bytes;
} catch (Throwable t) {
Log.severe("Failed to get class bytes from modified class " + name, t);
}
}
return ByteSource.classes.get(name);
}
@Override
protected synchronized CtClass get0(String className, boolean useCache) throws NotFoundException {
if (!exclude(className)) {
if (isSrg) {
CtClass cachedClass = srgClasses.get(className);
if (cachedClass != null) {
return cachedClass;
}
cachedClass = super.getCached(className);
if (cachedClass != null && cachedClass.isPrimitive()) {
return cachedClass;
}
if (!Transformer.remapClassName(className).equals(className)) {
Log.severe("Attempted to load obfuscated class " + className, new Throwable());
return null;
}
String remappedName = Transformer.unmapClassName(className);
byte[] bytes = getBytes(remappedName);
if (bytes != null) {
bytes = Transformer.transform(bytes);
try {
CtClass ctClass = new CtClassType(new ByteArrayInputStream(bytes), this);
if (!remappedName.equals(className)) {
ctClass.freeze();
}
srgClasses.put(className, ctClass);
return ctClass;
} catch (IOException e) {
Log.severe("Failed to make " + className + " from " + remappedName, e);
}
return null;
}
} else {
if (!Transformer.unmapClassName(className).equals(className)) {
Log.severe("Attempted to load SRG class " + className + " while patching a non-SRG class.", new Throwable());
return null;
}
}
}
CtClass clazz;
if (useCache) {
clazz = getCached(className);
if (clazz != null) {
return clazz;
}
}
clazz = createCtClass(className, useCache);
if (clazz != null) {
// clazz.getName() != classname if classname is "[L<name>;".
if (useCache) {
cacheCtClass(clazz.getName(), clazz, false);
}
}
return clazz;
}
@Override
protected CtClass createCtClass(String className, boolean useCache) {
return super.createCtClass(className, useCache);
}
public void markChanged(final String className) {
srgClasses.remove(className);
}
public boolean addCurrentPackage(final String packageName) {
if (packageName == null) {
return false;
}
ArrayList<String> importedPackages = getImportedPackages_();
if (importedPackages.contains(packageName)) {
return false;
}
importedPackages.add(0, packageName);
return true;
}
public void removeCurrentPackage() {
getImportedPackages_().remove(0);
}
private ArrayList<String> getImportedPackages_() {
return ReflectUtil.get(this, "importedPackages");
}
}