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@ -18,7 +18,6 @@
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package com.comphenix.protocol.injector.packet;
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import java.lang.reflect.Field;
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import java.lang.reflect.Method;
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import java.lang.reflect.Modifier;
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import java.lang.reflect.ParameterizedType;
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import java.lang.reflect.Type;
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@ -39,6 +38,9 @@ import com.comphenix.protocol.PacketType.Sender;
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import com.comphenix.protocol.ProtocolLogger;
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import com.comphenix.protocol.reflect.FuzzyReflection;
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import com.comphenix.protocol.reflect.StructureModifier;
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import com.comphenix.protocol.reflect.accessors.Accessors;
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import com.comphenix.protocol.reflect.accessors.FieldAccessor;
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import com.comphenix.protocol.reflect.accessors.MethodAccessor;
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import com.comphenix.protocol.reflect.fuzzy.FuzzyClassContract;
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import com.comphenix.protocol.reflect.fuzzy.FuzzyFieldContract;
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import com.comphenix.protocol.reflect.fuzzy.FuzzyMethodContract;
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@ -47,6 +49,7 @@ import com.comphenix.protocol.utility.MinecraftVersion;
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/**
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* Static packet registry in Minecraft.
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*
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* @author Kristian
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*/
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public class PacketRegistry {
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@ -61,6 +64,7 @@ public class PacketRegistry {
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/**
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* Represents a register we are currently building.
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*
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* @author Kristian
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*/
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protected static class Register {
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@ -74,7 +78,8 @@ public class PacketRegistry {
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volatile Set<PacketType> clientPackets = new HashSet<>();
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final List<MapContainer> containers = new ArrayList<>();
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public Register() {}
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public Register() {
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}
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public void registerPacket(PacketType type, Class<?> clazz, Sender sender) {
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typeToClass.put(type, Optional.of(clazz));
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@ -95,6 +100,7 @@ public class PacketRegistry {
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/**
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* Determine if the current register is outdated.
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*
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* @return TRUE if it is, FALSE otherwise.
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*/
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public boolean isOutdated() {
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@ -140,7 +146,8 @@ public class PacketRegistry {
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modifier = new StructureModifier<>(protocol.getClass().getSuperclass());
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}
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StructureModifier<Map<Object, Map<Integer, Class<?>>>> maps = modifier.withTarget(protocol).withType(Map.class);
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StructureModifier<Map<Object, Map<Integer, Class<?>>>> maps = modifier.withTarget(protocol)
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.withType(Map.class);
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for (Map.Entry<Object, Map<Integer, Class<?>>> entry : maps.read(0).entrySet()) {
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String direction = entry.getKey().toString();
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if (direction.contains("CLIENTBOUND")) { // Sent by Server
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@ -175,7 +182,7 @@ public class PacketRegistry {
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}
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@SuppressWarnings("unchecked")
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private static synchronized Register createNewRegister() {
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private static synchronized Register createRegisterV1_15_0() {
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Object[] protocols = ENUM_PROTOCOL.getEnumConstants();
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// ID to Packet class maps
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@ -192,11 +199,8 @@ public class PacketRegistry {
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for (Object protocol : protocols) {
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if (mainMapField == null) {
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FuzzyReflection fuzzy = FuzzyReflection.fromClass(protocol.getClass(), true);
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mainMapField = fuzzy.getField(FuzzyFieldContract.newBuilder()
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.banModifier(Modifier.STATIC)
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.requireModifier(Modifier.FINAL)
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.typeDerivedOf(Map.class)
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.build());
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mainMapField = fuzzy.getField(FuzzyFieldContract.newBuilder().banModifier(Modifier.STATIC)
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.requireModifier(Modifier.FINAL).typeDerivedOf(Map.class).build());
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mainMapField.setAccessible(true);
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}
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@ -214,28 +218,22 @@ public class PacketRegistry {
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Class<?> packetHolderClass = holder.getClass();
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if (MinecraftVersion.CONFIG_PHASE_PROTOCOL_UPDATE.atOrAbove()) {
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FuzzyReflection holderFuzzy = FuzzyReflection.fromClass(packetHolderClass, true);
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holderClassField = holderFuzzy.getField(FuzzyFieldContract.newBuilder()
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.banModifier(Modifier.STATIC)
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holderClassField = holderFuzzy
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.getField(FuzzyFieldContract.newBuilder().banModifier(Modifier.STATIC)
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.requireModifier(Modifier.FINAL)
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.typeMatches(FuzzyClassContract.newBuilder()
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.method(FuzzyMethodContract.newBuilder()
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.returnTypeExact(MinecraftReflection.getPacketClass())
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.parameterCount(2)
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.parameterExactType(int.class, 0)
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.parameterExactType(MinecraftReflection.getPacketDataSerializerClass(), 1)
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.build())
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.build())
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.typeMatches(FuzzyClassContract.newBuilder().method(FuzzyMethodContract
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.newBuilder().returnTypeExact(MinecraftReflection.getPacketClass())
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.parameterCount(2).parameterExactType(int.class, 0).parameterExactType(
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MinecraftReflection.getPacketDataSerializerClass(), 1)
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.build()).build())
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.build());
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holderClassField.setAccessible(true);
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packetHolderClass = holderClassField.getType();
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}
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FuzzyReflection fuzzy = FuzzyReflection.fromClass(packetHolderClass, true);
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packetMapField = fuzzy.getField(FuzzyFieldContract.newBuilder()
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.banModifier(Modifier.STATIC)
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.requireModifier(Modifier.FINAL)
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.typeDerivedOf(Map.class)
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.build());
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packetMapField = fuzzy.getField(FuzzyFieldContract.newBuilder().banModifier(Modifier.STATIC)
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.requireModifier(Modifier.FINAL).typeDerivedOf(Map.class).build());
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packetMapField.setAccessible(true);
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}
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@ -267,13 +265,13 @@ public class PacketRegistry {
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// Maps we have to occasionally check have changed
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// TODO: Find equivalent in Object2IntMap
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/* for (Object map : serverMaps.values()) {
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result.containers.add(new MapContainer(map));
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}
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for (Object map : clientMaps.values()) {
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result.containers.add(new MapContainer(map));
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} */
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/*
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* for (Object map : serverMaps.values()) { result.containers.add(new
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* MapContainer(map)); }
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*
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* for (Object map : clientMaps.values()) { result.containers.add(new
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* MapContainer(map)); }
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*/
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for (Object protocol : protocols) {
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Enum<?> enumProtocol = (Enum<?>) protocol;
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@ -292,88 +290,37 @@ public class PacketRegistry {
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}
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@SuppressWarnings("unchecked")
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private static synchronized Register createNewNewRegister() {
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private static synchronized Register createRegisterV1_20_5() {
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Object[] protocols = ENUM_PROTOCOL.getEnumConstants();
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// ID to Packet class maps
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// PacketType<?> to class map
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final Map<Object, Class<?>> packetTypeMap = new HashMap<>();
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final Map<Object, Map<Class<?>, Integer>> serverMaps = new LinkedHashMap<>();
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final Map<Object, Map<Class<?>, Integer>> clientMaps = new LinkedHashMap<>();
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String[] protocolClassNames = new String[] {
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"configuration.ConfigurationProtocols",
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"game.GameProtocols",
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"handshake.HandshakeProtocols",
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"login.LoginProtocols",
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"status.StatusProtocols"
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};
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// List of all class containing PacketTypes
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String[] packetTypesClassNames = new String[] { "common.CommonPacketTypes",
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"configuration.ConfigurationPacketTypes", "cookie.CookiePacketTypes", "game.GamePacketTypes",
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"handshake.HandshakePacketTypes", "login.LoginPacketTypes", "ping.PingPacketTypes",
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"status.StatusPacketTypes", };
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String[] packetTypesClassNames = new String[] {
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"common.CommonPacketTypes",
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"configuration.ConfigurationPacketTypes",
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"cookie.CookiePacketTypes",
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"game.GamePacketTypes",
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"handshake.HandshakePacketTypes",
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"login.LoginPacketTypes",
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"ping.PingPacketTypes",
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"status.StatusPacketTypes",
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};
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Class<?> protocolInfoClass = MinecraftReflection.getMinecraftClass("network.ProtocolInfo");
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Class<?> protocolInfoUnboundClass = MinecraftReflection.getMinecraftClass("network.ProtocolInfo$a");
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Class<?> streamCodecClass = MinecraftReflection.getMinecraftClass("network.codec.StreamCodec");
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Class<?> idDispatchCodecClass = MinecraftReflection.getMinecraftClass("network.codec.IdDispatchCodec");
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Class<?> packetTypeClass = MinecraftReflection.getMinecraftClass("network.protocol.PacketType");
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Class<?> protocolDirectionClass = MinecraftReflection.getMinecraftClass("network.protocol.EnumProtocolDirection");
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Function<?, ?> emptyFunction = input -> null;
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Method protocolMethod = FuzzyReflection.fromClass(protocolInfoClass)
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.getMethod(FuzzyMethodContract.newBuilder()
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.returnTypeExact(MinecraftReflection.getEnumProtocolClass())
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.build());
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protocolMethod.setAccessible(true);
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Method directionMethod = FuzzyReflection.fromClass(protocolInfoClass)
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.getMethod(FuzzyMethodContract.newBuilder()
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.returnTypeExact(protocolDirectionClass)
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.build());
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directionMethod.setAccessible(true);
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Method codecMethod = FuzzyReflection.fromClass(protocolInfoClass)
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.getMethod(FuzzyMethodContract.newBuilder()
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.returnTypeExact(streamCodecClass)
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.build());
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codecMethod.setAccessible(true);
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Method bindMethod = FuzzyReflection.fromClass(protocolInfoUnboundClass)
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.getMethod(FuzzyMethodContract.newBuilder()
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.returnTypeExact(protocolInfoClass)
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.build());
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bindMethod.setAccessible(true);
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Field toIdField = FuzzyReflection.fromClass(idDispatchCodecClass, true)
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.getField(FuzzyFieldContract.newBuilder()
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.typeDerivedOf(Map.class)
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.build());
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toIdField.setAccessible(true);
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for (String packetTypesClassName : packetTypesClassNames) {
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Class<?> packetTypesClass = MinecraftReflection.getMinecraftClass("network.protocol." + packetTypesClassName);
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Class<?> packetTypesClass = MinecraftReflection
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.getMinecraftClass("network.protocol." + packetTypesClassName);
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// check every field for "static final PacketType<?>"
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for (Field field : packetTypesClass.getDeclaredFields()) {
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try {
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if (!Modifier.isFinal(field.getModifiers()) || !Modifier.isStatic(field.getModifiers())) {
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System.out.println("failed modifier " + field);
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continue;
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}
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Object packetType = field.get(null);
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if (!packetTypeClass.isInstance(packetType)) {
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System.out.println("failed packetTypeClass " + field);
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continue;
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}
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// retrieve the generic type T of the PacketType<T> field
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Type packet = ((ParameterizedType) field.getGenericType()).getActualTypeArguments()[0];
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if (packet instanceof Class<?>) {
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packetTypeMap.put(packetType, (Class<?>) packet);
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@ -385,34 +332,72 @@ public class PacketRegistry {
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}
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}
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// ID to Packet class maps
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final Map<Object, Map<Class<?>, Integer>> serverMaps = new LinkedHashMap<>();
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final Map<Object, Map<Class<?>, Integer>> clientMaps = new LinkedHashMap<>();
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// List of all class containing ProtocolInfos
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String[] protocolClassNames = new String[] { "configuration.ConfigurationProtocols", "game.GameProtocols",
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"handshake.HandshakeProtocols", "login.LoginProtocols", "status.StatusProtocols" };
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Class<?> protocolInfoClass = MinecraftReflection.getProtocolInfoClass();
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Class<?> protocolInfoUnboundClass = MinecraftReflection.getMinecraftClass("network.ProtocolInfo$a");
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Class<?> streamCodecClass = MinecraftReflection.getMinecraftClass("network.codec.StreamCodec");
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Class<?> idDispatchCodecClass = MinecraftReflection.getMinecraftClass("network.codec.IdDispatchCodec");
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Class<?> protocolDirectionClass = MinecraftReflection
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.getMinecraftClass("network.protocol.EnumProtocolDirection");
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Function<?, ?> emptyFunction = input -> null;
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FuzzyReflection protocolInfoReflection = FuzzyReflection.fromClass(protocolInfoClass);
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MethodAccessor protocolAccessor = Accessors.getMethodAccessor(protocolInfoReflection
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.getMethodByReturnTypeAndParameters("id", MinecraftReflection.getEnumProtocolClass(), new Class[0]));
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MethodAccessor directionAccessor = Accessors.getMethodAccessor(protocolInfoReflection
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.getMethodByReturnTypeAndParameters("flow", protocolDirectionClass, new Class[0]));
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MethodAccessor codecAccessor = Accessors.getMethodAccessor(
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protocolInfoReflection.getMethodByReturnTypeAndParameters("codec", streamCodecClass, new Class[0]));
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MethodAccessor bindAccessor = Accessors.getMethodAccessor(FuzzyReflection.fromClass(protocolInfoUnboundClass)
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.getMethodByReturnTypeAndParameters("bind", protocolInfoClass, new Class[] { Function.class }));
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FieldAccessor toIdAccessor = Accessors.getFieldAccessor(FuzzyReflection.fromClass(idDispatchCodecClass, true)
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.getField(FuzzyFieldContract.newBuilder().typeDerivedOf(Map.class).build()));
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for (String protocolClassName : protocolClassNames) {
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Class<?> protocolClass = MinecraftReflection.getMinecraftClass("network.protocol." + protocolClassName);
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for (Field field : protocolClass.getDeclaredFields()) {
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try {
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// ignore none static and final fields
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if (!Modifier.isFinal(field.getModifiers()) || !Modifier.isStatic(field.getModifiers())) {
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System.out.println("failed modifier " + field);
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continue;
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}
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Object protocolInfo = field.get(null);
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// bind unbound ProtocolInfo to empty function to get real ProtocolInfo
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if (protocolInfoUnboundClass.isInstance(protocolInfo)) {
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protocolInfo = bindMethod.invoke(protocolInfo, new Object[] { emptyFunction });
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protocolInfo = bindAccessor.invoke(protocolInfo, new Object[] { emptyFunction });
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}
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// ignore any field that isn't a ProtocolInfo
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if (!protocolInfoClass.isInstance(protocolInfo)) {
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System.out.println("failed protocolInfoClass " + field);
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|
continue;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
Object codec = codecMethod.invoke(protocolInfo);
|
|
|
|
|
// get codec and check if codec is instance of IdDispatchCodec
|
|
|
|
|
// since that is the only support codec as of now
|
|
|
|
|
Object codec = codecAccessor.invoke(protocolInfo);
|
|
|
|
|
if (!idDispatchCodecClass.isInstance(codec)) {
|
|
|
|
|
System.out.println("failed idDispatchCodecClass " + field);
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// retrieve packetTypeMap and convert it to packetIdMap
|
|
|
|
|
Map<Class<?>, Integer> packetMap = new HashMap<>();
|
|
|
|
|
Map<Object, Integer> packetTypeIdMap = (Map<Object, Integer>) toIdField.get(codec);
|
|
|
|
|
Map<Object, Integer> packetTypeIdMap = (Map<Object, Integer>) toIdAccessor.get(codec);
|
|
|
|
|
|
|
|
|
|
for (Map.Entry<Object, Integer> entry : packetTypeIdMap.entrySet()) {
|
|
|
|
|
Class<?> packet = packetTypeMap.get(entry.getKey());
|
|
|
|
@ -423,9 +408,9 @@ public class PacketRegistry {
|
|
|
|
|
packetMap.put(packet, entry.getValue());
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Object protocol = protocolMethod.invoke(protocolInfo);
|
|
|
|
|
String direction = directionMethod.invoke(protocolInfo).toString();
|
|
|
|
|
// get EnumProtocol and Direction of protocol info
|
|
|
|
|
Object protocol = protocolAccessor.invoke(protocolInfo);
|
|
|
|
|
String direction = directionAccessor.invoke(protocolInfo).toString();
|
|
|
|
|
|
|
|
|
|
if (direction.contains("CLIENTBOUND")) { // Sent by Server
|
|
|
|
|
serverMaps.put(protocol, packetMap);
|
|
|
|
@ -458,8 +443,8 @@ public class PacketRegistry {
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* Reverses a key->value map to value->key
|
|
|
|
|
* Non-deterministic behavior when multiple keys are mapped to the same value
|
|
|
|
|
* Reverses a key->value map to value->key Non-deterministic behavior when
|
|
|
|
|
* multiple keys are mapped to the same value
|
|
|
|
|
*/
|
|
|
|
|
private static <K, V> Map<V, K> reverse(Map<K, V> map) {
|
|
|
|
|
Map<V, K> newMap = new HashMap<>(map.size());
|
|
|
|
@ -469,7 +454,8 @@ public class PacketRegistry {
|
|
|
|
|
return newMap;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
protected static void associatePackets(Register register, Map<Integer, Class<?>> lookup, PacketType.Protocol protocol, Sender sender) {
|
|
|
|
|
protected static void associatePackets(Register register, Map<Integer, Class<?>> lookup,
|
|
|
|
|
PacketType.Protocol protocol, Sender sender) {
|
|
|
|
|
for (Map.Entry<Integer, Class<?>> entry : lookup.entrySet()) {
|
|
|
|
|
int packetId = entry.getKey();
|
|
|
|
|
Class<?> packetClass = entry.getValue();
|
|
|
|
@ -509,9 +495,9 @@ public class PacketRegistry {
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (MinecraftVersion.v1_20_5.atOrAbove()) {
|
|
|
|
|
REGISTER = createNewNewRegister();
|
|
|
|
|
REGISTER = createRegisterV1_20_5();
|
|
|
|
|
} else if (MinecraftVersion.BEE_UPDATE.atOrAbove()) {
|
|
|
|
|
REGISTER = createNewRegister();
|
|
|
|
|
REGISTER = createRegisterV1_15_0();
|
|
|
|
|
} else {
|
|
|
|
|
REGISTER = createOldRegister();
|
|
|
|
|
}
|
|
|
|
@ -522,6 +508,7 @@ public class PacketRegistry {
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* Determine if the given packet type is supported on the current server.
|
|
|
|
|
*
|
|
|
|
|
* @param type - the type to check.
|
|
|
|
|
* @return TRUE if it is, FALSE otherwise.
|
|
|
|
|
*/
|
|
|
|
@ -532,6 +519,7 @@ public class PacketRegistry {
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* Retrieve every known and supported server packet type.
|
|
|
|
|
*
|
|
|
|
|
* @return Every server packet type.
|
|
|
|
|
*/
|
|
|
|
|
public static Set<PacketType> getServerPacketTypes() {
|
|
|
|
@ -543,6 +531,7 @@ public class PacketRegistry {
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* Retrieve every known and supported server packet type.
|
|
|
|
|
*
|
|
|
|
|
* @return Every server packet type.
|
|
|
|
|
*/
|
|
|
|
|
public static Set<PacketType> getClientPacketTypes() {
|
|
|
|
@ -560,7 +549,8 @@ public class PacketRegistry {
|
|
|
|
|
&& !Modifier.isAbstract(clazz.getModifiers())) {
|
|
|
|
|
return clazz;
|
|
|
|
|
}
|
|
|
|
|
} catch (Exception ignored) {}
|
|
|
|
|
} catch (Exception ignored) {
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return null;
|
|
|
|
@ -570,7 +560,8 @@ public class PacketRegistry {
|
|
|
|
|
* Retrieves the correct packet class from a given type.
|
|
|
|
|
*
|
|
|
|
|
* @param type - the packet type.
|
|
|
|
|
* @param forceVanilla - whether or not to look for vanilla classes, not injected classes.
|
|
|
|
|
* @param forceVanilla - whether or not to look for vanilla classes, not
|
|
|
|
|
* injected classes.
|
|
|
|
|
* @return The associated class.
|
|
|
|
|
* @deprecated forceVanilla no longer has any effect
|
|
|
|
|
*/
|
|
|
|
@ -594,21 +585,25 @@ public class PacketRegistry {
|
|
|
|
|
// Then try looking up the class names
|
|
|
|
|
Class<?> clazz = searchForPacket(type.getClassNames());
|
|
|
|
|
if (clazz != null) {
|
|
|
|
|
// we'd like for it to be associated correctly from the get-go; this is OK on older versions though
|
|
|
|
|
ProtocolLogger.warnAbove(type.getCurrentVersion(), "Updating associated class for {0} to {1}", type.name(), clazz);
|
|
|
|
|
// we'd like for it to be associated correctly from the get-go; this is OK on
|
|
|
|
|
// older versions though
|
|
|
|
|
ProtocolLogger.warnAbove(type.getCurrentVersion(), "Updating associated class for {0} to {1}", type.name(),
|
|
|
|
|
clazz);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// cache it for next time
|
|
|
|
|
associate(type, clazz);
|
|
|
|
|
if (clazz != null && MinecraftReflection.isBundleDelimiter(clazz)) {
|
|
|
|
|
clazz = MinecraftReflection.getPackedBundlePacketClass().orElseThrow(() -> new IllegalStateException("Packet bundle class not found."));
|
|
|
|
|
clazz = MinecraftReflection.getPackedBundlePacketClass()
|
|
|
|
|
.orElseThrow(() -> new IllegalStateException("Packet bundle class not found."));
|
|
|
|
|
}
|
|
|
|
|
return Optional.ofNullable(clazz);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* Get the packet class associated with a given type. First attempts to read from the
|
|
|
|
|
* type-to-class mapping, and tries
|
|
|
|
|
* Get the packet class associated with a given type. First attempts to read
|
|
|
|
|
* from the type-to-class mapping, and tries
|
|
|
|
|
*
|
|
|
|
|
* @param type the packet type
|
|
|
|
|
* @return The associated class
|
|
|
|
|
*/
|
|
|
|
@ -619,9 +614,11 @@ public class PacketRegistry {
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* Retrieve the packet type of a given packet.
|
|
|
|
|
*
|
|
|
|
|
* @param packet - the class of the packet.
|
|
|
|
|
* @return The packet type, or NULL if not found.
|
|
|
|
|
* @deprecated major issues due to packets with shared classes being registered in multiple states.
|
|
|
|
|
* @deprecated major issues due to packets with shared classes being registered
|
|
|
|
|
* in multiple states.
|
|
|
|
|
*/
|
|
|
|
|
@Deprecated
|
|
|
|
|
public static PacketType getPacketType(Class<?> packet) {
|
|
|
|
@ -635,11 +632,13 @@ public class PacketRegistry {
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* Retrieve the associated packet type for a packet class in the given protocol state.
|
|
|
|
|
* Retrieve the associated packet type for a packet class in the given protocol
|
|
|
|
|
* state.
|
|
|
|
|
*
|
|
|
|
|
* @param protocol the protocol state to retrieve the packet from.
|
|
|
|
|
* @param packet the class identifying the packet type.
|
|
|
|
|
* @return the packet type associated with the given class in the given protocol state, or null if not found.
|
|
|
|
|
* @return the packet type associated with the given class in the given protocol
|
|
|
|
|
* state, or null if not found.
|
|
|
|
|
*/
|
|
|
|
|
public static PacketType getPacketType(PacketType.Protocol protocol, Class<?> packet) {
|
|
|
|
|
initialize();
|
|
|
|
@ -653,6 +652,7 @@ public class PacketRegistry {
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* Retrieve the packet type of a given packet.
|
|
|
|
|
*
|
|
|
|
|
* @param packet - the class of the packet.
|
|
|
|
|
* @param sender - the sender of the packet, or NULL.
|
|
|
|
|
* @return The packet type, or NULL if not found.
|
|
|
|
|