158 lines
7.1 KiB
Java
158 lines
7.1 KiB
Java
package com.sekwah.advancedportals.compat;
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import com.sekwah.advancedportals.AdvancedPortalsPlugin;
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import com.sekwah.advancedportals.reflection.ReflectionHelper;
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import org.bukkit.World;
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import org.bukkit.block.Block;
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import org.bukkit.entity.Player;
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import java.lang.reflect.Constructor;
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import java.lang.reflect.Field;
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import java.lang.reflect.InvocationTargetException;
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import java.lang.reflect.Method;
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/**
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* Created by on 02/08/2016.
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*
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* I don't think there will be any others supported other than bukkit but if there are its not just the compat that will
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* need to change unless it has a different package for the minecraft server parts
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*
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* @author sekwah41 maxqia
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*/
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public class CraftBukkit {
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private final AdvancedPortalsPlugin plugin;
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// Data for chat bar and json message
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private Method chatMessageTypeMethod;
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private Method serializeMessage;
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private Constructor<?> chatPacketConstructor;
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private Method playerGetHandle;
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private Field playerConnection;
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private Method sendPacket;
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// Data for beacon
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private Class<?> endGatewayClass;
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private Class<?> tileEntityEndGatewayClass;
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private Constructor<?> blockPositionConstructor;
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private Method getWorldHandleMethod;
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private Method getTileEntityMethod;
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private Field getEntityTimeoutField;
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public CraftBukkit(AdvancedPortalsPlugin plugin, String bukkitImpl) throws ClassNotFoundException, NoSuchFieldException, NoSuchMethodException {
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this.plugin = plugin;
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try {
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String craftBukkitPackage = "org.bukkit.craftbukkit." + bukkitImpl + ".";
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String minecraftPackage = "net.minecraft.server." + bukkitImpl + ".";
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this.plugin.getLogger().info("Bukkit version detected " + bukkitImpl);
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Class<?> chatBaseComponent = Class.forName(minecraftPackage + "IChatBaseComponent"); // string to packet methods
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Class<?> chatSerialClass = this.findClass(chatBaseComponent, "ChatSerializer");
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Class<?> chatMessageTypeClass = Class.forName(minecraftPackage + "ChatMessageType");
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this.chatMessageTypeMethod = chatMessageTypeClass.getMethod("a", byte.class);
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this.chatPacketConstructor = Class.forName(minecraftPackage + "PacketPlayOutChat").getConstructor(chatBaseComponent, chatMessageTypeClass);
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this.serializeMessage = chatSerialClass.getMethod("a", String.class);
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this.playerGetHandle = Class.forName(craftBukkitPackage + "entity.CraftPlayer").getMethod("getHandle");
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this.playerConnection = Class.forName(minecraftPackage + "EntityPlayer").getField("playerConnection"); // get player connection
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Class<?> packet = Class.forName(minecraftPackage + "Packet");
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this.sendPacket = playerConnection.getType().getMethod("sendPacket", packet);
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// Data for beacon
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this.endGatewayClass = Class.forName(craftBukkitPackage + "block.CraftEndGateway");
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this.tileEntityEndGatewayClass = Class.forName(minecraftPackage + "TileEntityEndGateway");
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Class<?> blockPos = Class.forName(minecraftPackage + "BlockPosition");
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this.blockPositionConstructor = blockPos.getConstructor(int.class, int.class, int.class);
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getWorldHandleMethod = Class.forName(craftBukkitPackage + "CraftWorld").getMethod("getHandle");
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getTileEntityMethod = Class.forName(minecraftPackage + "WorldServer").getMethod("getTileEntity", blockPos);
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getEntityTimeoutField = ReflectionHelper.getFieldByType(Class.forName(minecraftPackage + "TileEntityEndGateway"), int.class, false);
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if(getEntityTimeoutField != null) {
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this.plugin.getLogger().info("Got field " + getEntityTimeoutField.getName() + " from TileEntityEndGateway");
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}
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} catch (Exception e) {
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e.printStackTrace();
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plugin.getLogger().warning("Attempting to use backup porekit locations");
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// Fall back on your Porekit
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Class<?> textBaseComponent = Class.forName("net.minecraft.util.text.ITextComponent"); // string to packet methods
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this.serializeMessage = this.findClass(textBaseComponent, "Serializer").getMethod("func_150699_a", String.class); // md: jsonToComponent
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this.chatPacketConstructor = Class.forName("net.minecraft.network.play.server.SPacketChat").getConstructor(textBaseComponent, byte.class);
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this.playerGetHandle = Class.forName("blue.lapis.pore.impl.entity.PorePlayer").getMethod("getHandle");
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this.playerConnection = Class.forName("net.minecraft.entity.player.EntityPlayerMP").getField("field_71135_a"); // get player connection fd: connection
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Class<?> packet = Class.forName("net.minecraft.network.Packet");
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this.sendPacket = playerConnection.getType().getMethod("func_147359_a", packet); //md: sendPacket
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}
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}
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public void sendRawMessage(String rawMessage, Player player) {
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this.sendMessage(rawMessage,player, (byte) 1);
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}
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public void sendActionBarMessage(String rawMessage, Player player) {
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this.sendMessage("{\"text\":\"" + rawMessage + "\"}",player, (byte) 2);
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}
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public void sendMessage(String rawMessage, Player player, byte msgType) {
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try {
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Object comp = this.serializeMessage.invoke(null, rawMessage);
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Object packet = this.chatPacketConstructor.newInstance(comp, this.chatMessageTypeMethod.invoke(null,msgType)); // convert bytes into packet
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Object handle = this.playerGetHandle.invoke(player);
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Object playerConnection = this.playerConnection.get(handle); // get players connection
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sendPacket.invoke(playerConnection, packet); // send packet
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} catch (IllegalAccessException | InvocationTargetException | InstantiationException e) {
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this.plugin.getLogger().warning("Error creating raw message, something must be wrong with reflection");
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e.printStackTrace();
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}
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}
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public Class<?> findClass(Class<?> classObj, String className){
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for(Class<?> classes : classObj.getDeclaredClasses()){
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if(classes.getSimpleName().equals(className)){
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return classes;
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}
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}
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return null;
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}
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/**
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* Blocks the beacon from showing
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* @param block
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*/
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public void setGatewayAgeHigh(Block block) {
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if(block.getWorld().getEnvironment() != World.Environment.THE_END &&
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this.endGatewayClass.isAssignableFrom(block.getState().getClass())) {
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try {
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Object tileEntity = this.getTileEntityMethod.invoke(this.getWorldHandleMethod.invoke(block.getWorld()),
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this.blockPositionConstructor.newInstance(block.getX(), block.getY(), block.getZ()));
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if(this.tileEntityEndGatewayClass.isAssignableFrom(tileEntity.getClass())) {
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getEntityTimeoutField.set(tileEntity, Integer.MAX_VALUE);
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}
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} catch (IllegalAccessException| InvocationTargetException | InstantiationException e) {
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this.plugin.getLogger().warning("Error setting gateway time");
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e.printStackTrace();
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}
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}
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}
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}
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