nitro/nitrowebsockets-for-ms
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Dank074 2020-10-07 18:03:13 -05:00
commit f0edaeae90
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.gitignore vendored Normal file
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.idea
.idea/workspace.xml
target/

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pom.xml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>org.krews.nitro</groupId>
<artifactId>NitroWebsockets</artifactId>
<version>1.0-SNAPSHOT</version>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>6</source>
<target>6</target>
</configuration>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>com.eu.habbo</groupId>
<artifactId>Habbo</artifactId>
<version>2.4.0</version>
</dependency>
</dependencies>
</project>

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src/main/java/com/krews/plugin/nitro/main.java Normal file
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package com.krews.plugin.nitro;
import com.eu.habbo.Emulator;
import com.eu.habbo.habbohotel.users.Habbo;
import com.eu.habbo.plugin.EventHandler;
import com.eu.habbo.plugin.EventListener;
import com.eu.habbo.plugin.HabboPlugin;
import com.eu.habbo.plugin.events.emulator.EmulatorLoadedEvent;
import com.krews.plugin.nitro.websockets.NetworkChannelInitializer;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class main extends HabboPlugin implements EventListener {
private static final Logger LOGGER = LoggerFactory.getLogger(Emulator.class);
public void onEnable() throws Exception {
Emulator.getPluginManager().registerEvents(this, this);
if(Emulator.isReady && !Emulator.isShuttingDown) {
this.onEmulatorLoadedEvent(null);
}
}
public void onDisable() throws Exception {
}
public boolean hasPermission(Habbo habbo, String s) {
return false;
}
@EventHandler
public void onEmulatorLoadedEvent (EmulatorLoadedEvent e) {
//add missing db entry
Emulator.getConfig().register("websockets.whitelist", "localhost");
Emulator.getConfig().register("ws.nitro.host", "0.0.0.0");
Emulator.getConfig().register("ws.nitro.port", "2096");
Emulator.getGameServer().getServerBootstrap().childHandler(new NetworkChannelInitializer());
Emulator.getGameServer().getServerBootstrap().bind(Emulator.getConfig().getValue("ws.nitro.host", "0.0.0.0"), Emulator.getConfig().getInt("ws.nitro.port", 2096)).syncUninterruptibly();
LOGGER.info("OFFICIAL PLUGIN - Nitro Websockets has started!");
LOGGER.info("Nitro Websockets Listening on " + Emulator.getConfig().getValue("ws.nitro.host", "0.0.0.0") + ":" + Emulator.getConfig().getInt("ws.nitro.port", 2096));
}
}

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src/main/java/com/krews/plugin/nitro/websockets/NetworkChannelInitializer.java Normal file
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package com.krews.plugin.nitro.websockets;
import com.eu.habbo.messages.PacketManager;
import com.eu.habbo.networking.gameserver.decoders.*;
import com.eu.habbo.networking.gameserver.encoders.GameServerMessageEncoder;
import com.eu.habbo.networking.gameserver.encoders.GameServerMessageLogger;
import com.krews.plugin.nitro.websockets.handlers.MessageInterceptorHandler;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.socket.SocketChannel;
import io.netty.handler.logging.LoggingHandler;
public class NetworkChannelInitializer extends ChannelInitializer<SocketChannel> {
@Override
public void initChannel(SocketChannel ch) throws Exception {
ch.pipeline().addLast("logger", new LoggingHandler());
ch.pipeline().addLast("messageInterceptor", new MessageInterceptorHandler());
// Decoders.
ch.pipeline().addLast(new GamePolicyDecoder());
ch.pipeline().addLast(new GameByteFrameDecoder());
ch.pipeline().addLast(new GameByteDecoder());
if (PacketManager.DEBUG_SHOW_PACKETS) {
ch.pipeline().addLast(new GameClientMessageLogger());
}
ch.pipeline().addLast(new GameMessageRateLimit());
ch.pipeline().addLast(new GameMessageHandler());
// Encoders.
ch.pipeline().addLast("messageEncoder", new GameServerMessageEncoder());
if (PacketManager.DEBUG_SHOW_PACKETS) {
ch.pipeline().addLast(new GameServerMessageLogger());
}
}
}

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src/main/java/com/krews/plugin/nitro/websockets/codec/HabboFrameToWebSocketFrameEncoder.java Normal file
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package com.krews.plugin.nitro.websockets.codec;
import com.eu.habbo.messages.ServerMessage;
import io.netty.channel.ChannelHandlerContext;
import io.netty.handler.codec.MessageToMessageEncoder;
import io.netty.handler.codec.http.websocketx.BinaryWebSocketFrame;
import io.netty.util.IllegalReferenceCountException;
import java.io.IOException;
import java.util.List;
public class HabboFrameToWebSocketFrameEncoder extends MessageToMessageEncoder<ServerMessage> {
@Override
protected void encode(ChannelHandlerContext channelHandlerContext, ServerMessage message, List<Object> out) throws Exception {
try {
BinaryWebSocketFrame frame = new BinaryWebSocketFrame(message.get());
try {
out.add(frame.retain());
} finally {
// Release copied buffer.
frame.release();
}
} catch (IllegalReferenceCountException e) {
throw new IOException(String.format("IllegalReferenceCountException happened for ServerMessage with packet id %d.", message.getHeader()), e);
}
}
}

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src/main/java/com/krews/plugin/nitro/websockets/codec/WebSocketFrameToHabboFrameDecoder.java Normal file
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package com.krews.plugin.nitro.websockets.codec;
import com.eu.habbo.Emulator;
import io.netty.channel.ChannelFutureListener;
import io.netty.channel.ChannelHandlerContext;
import io.netty.handler.codec.MessageToMessageDecoder;
import io.netty.handler.codec.http.websocketx.CloseWebSocketFrame;
import io.netty.handler.codec.http.websocketx.WebSocketFrame;
import io.netty.handler.codec.http.websocketx.WebSocketServerProtocolHandler;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.List;
public class WebSocketFrameToHabboFrameDecoder extends MessageToMessageDecoder<WebSocketFrame> {
@Override
protected void decode(ChannelHandlerContext ctx, WebSocketFrame in, List<Object> out) {
out.add(in.content().retain());
}
@Override
public void userEventTriggered(ChannelHandlerContext ctx, Object evt) throws Exception {
// only allow websockets connections from the whitelist
if(evt instanceof WebSocketServerProtocolHandler.HandshakeComplete) {
WebSocketServerProtocolHandler.HandshakeComplete handshake = (WebSocketServerProtocolHandler.HandshakeComplete)evt;
String origin = getDomainName(handshake.requestHeaders().get("Origin"));
if(!isWhitelisted(origin)) {
ctx.channel().writeAndFlush(new CloseWebSocketFrame(403, "Origin forbidden")).addListener(ChannelFutureListener.CLOSE);
}
}
else {
super.userEventTriggered(ctx, evt);
}
}
public static String getDomainName(String url) throws URISyntaxException {
URI uri = new URI(url);
String domain = uri.getHost();
return domain.startsWith("www.") ? domain.substring(4) : domain;
}
public static boolean isWhitelisted(String origin) {
String[] allowedOrigins = Emulator.getConfig().getValue("websockets.whitelist", "localhost").split(",");
for(String entry : allowedOrigins) {
if(entry.startsWith("*")) {
if(origin.endsWith(entry.substring(1)) || ("." + origin).equals(entry.substring(1))) return true;
} else {
if(origin.equals(entry)) return true;
}
}
return false;
}
}

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src/main/java/com/krews/plugin/nitro/websockets/handlers/MessageInterceptorHandler.java Normal file
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package com.krews.plugin.nitro.websockets.handlers;
import com.krews.plugin.nitro.websockets.codec.HabboFrameToWebSocketFrameEncoder;
import com.krews.plugin.nitro.websockets.codec.WebSocketFrameToHabboFrameDecoder;
import io.netty.buffer.ByteBuf;
import io.netty.channel.ChannelHandlerContext;
import io.netty.handler.codec.ByteToMessageDecoder;
import io.netty.handler.codec.http.HttpObjectAggregator;
import io.netty.handler.codec.http.HttpServerCodec;
import io.netty.handler.codec.http.websocketx.WebSocketServerProtocolHandler;
import io.netty.util.CharsetUtil;
import java.util.List;
public class MessageInterceptorHandler extends ByteToMessageDecoder {
@Override
protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) throws Exception {
if(in.toString(CharsetUtil.UTF_8).startsWith("GET")) {
// this is a websocket upgrade request, so add the appropriate decoders/encoders
ctx.pipeline().addAfter("messageInterceptor", "websocketHandler", new WebSocketFrameToHabboFrameDecoder());
ctx.pipeline().addAfter("messageInterceptor", "protocolHandler", new WebSocketServerProtocolHandler("/", true));
ctx.pipeline().addAfter("messageInterceptor", "objectAggregator", new HttpObjectAggregator(65536));
ctx.pipeline().addAfter("messageInterceptor", "httpCodec", new HttpServerCodec());
ctx.pipeline().replace("messageEncoder", "websocketFrameEncoder", new HabboFrameToWebSocketFrameEncoder());
}
// Remove ourselves
ctx.pipeline().remove(this);
}
}

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src/main/resources/plugin.json Normal file
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{
"main" : "com.krews.plugin.nitro.main",
"name" : "Nitro Websockets",
"author" : "Krews"
}