101 lines
3.3 KiB
Java
101 lines
3.3 KiB
Java
package cn.serendipityr.EndMinecraftPlusV2.VersionControl.OldVersion.ForgeProtocol;
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import org.spacehq.mc.protocol.packet.ingame.client.ClientPluginMessagePacket;
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import org.spacehq.mc.protocol.packet.ingame.server.ServerPluginMessagePacket;
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import org.spacehq.packetlib.Session;
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import org.spacehq.packetlib.event.session.*;
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import java.lang.reflect.Field;
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import java.util.Map;
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public class MCForge {
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private final MCForgeHandShake handshake;
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public Map<String, String> modList;
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public Session session;
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public MCForge(Session session, Map<String, String> modList) {
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this.modList = modList;
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this.session = session;
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this.handshake = isAfterVersion1_13() ? new MCForgeHandShakeV2(this) : new MCForgeHandShakeV1(this);
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}
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public void init() {
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this.session.addListener(new SessionListener() {
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public void packetReceived(PacketReceivedEvent e) {
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if (e.getPacket() instanceof ServerPluginMessagePacket) {
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handle(e.getPacket());
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} else if (e.getPacket().getClass().getSimpleName().equals("LoginPluginRequestPacket")) {
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handshake.handle(e.getPacket());
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}
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}
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public void packetSent(PacketSentEvent e) {
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}
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public void connected(ConnectedEvent e) {
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modifyHost();
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}
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public void disconnecting(DisconnectingEvent e) {
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}
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public void disconnected(DisconnectedEvent e) {
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}
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});
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}
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public void handle(ServerPluginMessagePacket packet) {
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switch (packet.getChannel()) {
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case "FML|HS":
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this.handshake.handle(packet);
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break;
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case "REGISTER":
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case "minecraft:register": // 1.13
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this.session.send(new ClientPluginMessagePacket(packet.getChannel(), packet.getData()));
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break;
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case "MC|Brand":
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case "minecraft:brand": // 1.13
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this.session.send(new ClientPluginMessagePacket(packet.getChannel(), "fml,forge".getBytes()));
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break;
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}
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}
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public void modifyHost() {
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try {
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Class<?> cls = this.session.getClass().getSuperclass();
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Field field = cls.getDeclaredField("host");
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field.setAccessible(true);
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field.set(this.session, this.session.getHost() + "\0" + handshake.getFMLVersion() + "\0");
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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public static boolean isVersion1710() {
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return (getProtocolVersion() == 5);
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}
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public static boolean isAfterVersion1_13() {
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return (getProtocolVersion() >= 393);
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}
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public static int getProtocolVersion() {
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try {
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Class<?> cls;
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try {
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cls = Class.forName("org.spacehq.mc.protocol.ProtocolConstants");
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} catch (ClassNotFoundException e) {
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cls = Class.forName("org.spacehq.mc.protocol.MinecraftConstants");
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}
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Field field = cls.getDeclaredField("PROTOCOL_VERSION");
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return field.getInt(null);
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} catch (Exception e) {
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return 0;
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}
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}
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}
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