Attempt to work around existing injected proxies.

This didn't work for Orebfuscator though.
This commit is contained in:
Kristian S. Stangeland 2012-10-04 00:58:05 +02:00
parent 558eab2253
commit 8a5e5e849b
2 changed files with 58 additions and 6 deletions

View File

@ -22,9 +22,11 @@ import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.Set;
import java.util.logging.Level;
import net.minecraft.server.EntityPlayer;
import net.minecraft.server.Packet;
import net.sf.cglib.proxy.Factory;
import org.bukkit.craftbukkit.entity.CraftPlayer;
import org.bukkit.entity.Player;
@ -40,7 +42,9 @@ import com.comphenix.protocol.reflect.VolatileField;
abstract class PlayerInjector {
// Cache previously retrieved fields
protected static Field serverHandlerField;
private static Field serverHandlerField;
private static Field proxyServerField;
protected static Field networkManagerField;
protected static Field inputField;
protected static Field netHandlerField;
@ -96,9 +100,18 @@ abstract class PlayerInjector {
hasInitialized = true;
// Retrieve the server handler
if (serverHandlerField == null)
if (serverHandlerField == null) {
serverHandlerField = FuzzyReflection.fromObject(notchEntity).getFieldByType(".*NetServerHandler");
proxyServerField = getProxyField(notchEntity, serverHandlerField);
}
// Yo dawg
if (proxyServerField != null) {
Object container = FieldUtils.readField(serverHandlerField, notchEntity, true);
serverHandlerRef = new VolatileField(proxyServerField, container);
} else {
serverHandlerRef = new VolatileField(serverHandlerField, notchEntity);
}
serverHandler = serverHandlerRef.getValue();
// Next, get the network manager
@ -123,6 +136,38 @@ abstract class PlayerInjector {
}
}
private Field getProxyField(EntityPlayer notchEntity, Field serverField) {
try {
Object handler = FieldUtils.readField(serverHandlerField, notchEntity, true);
// Is this a Minecraft hook?
if (handler != null && !handler.getClass().getName().startsWith("net.minecraft.server")) {
// This is our proxy object
if (handler instanceof Factory)
return null;
// No? Is it a Proxy type?
try {
FuzzyReflection reflection = FuzzyReflection.fromObject(handler, true);
// It might be
return reflection.getFieldByType(".*NetServerHandler");
} catch (RuntimeException e) {
manager.getLogger().log(Level.WARNING, "Server handler is a proxy type.", e);
}
}
} catch (IllegalAccessException e) {
manager.getLogger().warning("Unable to load server handler from proxy type.");
}
// Nope, just go with it
return null;
}
/**
* Retrieves the current net handler for this player.
* @return Current net handler.
@ -246,6 +291,11 @@ abstract class PlayerInjector {
* @return The player's input stream.
*/
public DataInputStream getInputStream(boolean cache) {
if (inputField == null)
throw new IllegalStateException("Input field is NULL.");
if (networkManager == null)
throw new IllegalStateException("Network manager is NULL.");
// Get the associated input stream
try {
if (cache && cachedInput != null)

View File

@ -292,7 +292,9 @@ public class FuzzyReflection {
// Like above, only here we test the field type
for (Field field : getFields()) {
if (match.matcher(field.getType().getName()).matches()) {
String name = field.getType().getName();
if (match.matcher(name).matches()) {
return field;
}
}