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70 changes: 70 additions & 0 deletions
70
core/src/main/java/com/rtm516/mcxboxbroadcast/core/ping/ClientPingHandler.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,70 @@ | ||
| package com.rtm516.mcxboxbroadcast.core.ping; | ||
|
|
||
| import io.netty.channel.Channel; | ||
| import io.netty.channel.ChannelDuplexHandler; | ||
| import io.netty.channel.ChannelHandlerContext; | ||
| import io.netty.channel.ChannelPromise; | ||
| import io.netty.util.concurrent.Promise; | ||
| import io.netty.util.concurrent.ScheduledFuture; | ||
| import org.cloudburstmc.netty.channel.raknet.RakPong; | ||
| import org.cloudburstmc.protocol.bedrock.BedrockPong; | ||
|
|
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| import java.util.concurrent.TimeUnit; | ||
| import java.util.concurrent.TimeoutException; | ||
|
|
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| /** | ||
| * Licenced under GPL-2.0 | ||
| * | ||
| * https://github.com/WaterdogPE/WaterdogPE/blob/4e2b3cd1a3d5e4d3599476fd907b6bd3186783eb/src/main/java/dev/waterdog/waterdogpe/network/connection/codec/client/ClientPingHandler.java | ||
| */ | ||
| public class ClientPingHandler extends ChannelDuplexHandler { | ||
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| private final Promise<BedrockPong> future; | ||
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| private final long timeout; | ||
| private final TimeUnit timeUnit; | ||
| private ScheduledFuture<?> timeoutFuture; | ||
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| public ClientPingHandler(Promise<BedrockPong> future, long timeout, TimeUnit timeUnit) { | ||
| this.future = future; | ||
| this.timeout = timeout; | ||
| this.timeUnit = timeUnit; | ||
| } | ||
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| private void onTimeout(Channel channel) { | ||
| channel.close(); | ||
| this.future.tryFailure(new TimeoutException()); | ||
| } | ||
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| @Override | ||
| public void handlerAdded(ChannelHandlerContext ctx) throws Exception { | ||
| this.timeoutFuture = ctx.channel().eventLoop().schedule(() -> this.onTimeout(ctx.channel()), this.timeout, this.timeUnit); | ||
| } | ||
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| @Override | ||
| public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception { | ||
| if (!(msg instanceof RakPong rakPong)) { | ||
| super.channelRead(ctx, msg); | ||
| return; | ||
| } | ||
|
|
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| if (this.timeoutFuture != null) { | ||
| this.timeoutFuture.cancel(false); | ||
| this.timeoutFuture = null; | ||
| } | ||
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| ctx.channel().close(); | ||
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| this.future.trySuccess(BedrockPong.fromRakNet(rakPong.getPongData())); | ||
| } | ||
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| @Override | ||
| public void close(ChannelHandlerContext ctx, ChannelPromise promise) throws Exception { | ||
| super.close(ctx, promise); | ||
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| if (this.timeoutFuture != null) { | ||
| this.timeoutFuture.cancel(false); | ||
| this.timeoutFuture = null; | ||
| } | ||
| } | ||
| } |
59 changes: 59 additions & 0 deletions
59
core/src/main/java/com/rtm516/mcxboxbroadcast/core/ping/PingUtil.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,59 @@ | ||
| package com.rtm516.mcxboxbroadcast.core.ping; | ||
|
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| import io.netty.bootstrap.Bootstrap; | ||
| import io.netty.channel.ChannelFuture; | ||
| import io.netty.channel.EventLoop; | ||
| import io.netty.channel.EventLoopGroup; | ||
| import io.netty.channel.nio.NioEventLoopGroup; | ||
| import io.netty.channel.socket.nio.NioDatagramChannel; | ||
| import io.netty.util.concurrent.Promise; | ||
| import org.cloudburstmc.netty.channel.raknet.RakChannelFactory; | ||
| import org.cloudburstmc.netty.channel.raknet.RakPing; | ||
| import org.cloudburstmc.netty.channel.raknet.config.RakChannelOption; | ||
| import org.cloudburstmc.protocol.bedrock.BedrockPong; | ||
| import org.java_websocket.util.NamedThreadFactory; | ||
|
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| import java.net.InetSocketAddress; | ||
| import java.util.concurrent.ThreadLocalRandom; | ||
| import java.util.concurrent.TimeUnit; | ||
|
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| /** | ||
| * Licenced under GPL-2.0 | ||
| * Modified to fit MCXboxBroadcast | ||
| * | ||
| * https://github.com/WaterdogPE/WaterdogPE/blob/4e2b3cd1a3d5e4d3599476fd907b6bd3186783eb/src/main/java/dev/waterdog/waterdogpe/network/serverinfo/BedrockServerInfo.java | ||
| */ | ||
| public class PingUtil { | ||
| private static EventLoopGroup workerEventLoopGroup; | ||
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| static { | ||
| workerEventLoopGroup = new NioEventLoopGroup(0, new NamedThreadFactory("MCXboxBroadcast Ping Thread")); | ||
| } | ||
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| public static Promise<BedrockPong> ping(InetSocketAddress server, long timeout, TimeUnit timeUnit) { | ||
| EventLoop eventLoop = workerEventLoopGroup.next(); | ||
| Promise<BedrockPong> promise = eventLoop.newPromise(); | ||
|
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| new Bootstrap() | ||
| .channelFactory(RakChannelFactory.client(NioDatagramChannel.class)) | ||
| .group(workerEventLoopGroup) | ||
| .option(RakChannelOption.RAK_GUID, ThreadLocalRandom.current().nextLong()) | ||
| .handler(new ClientPingHandler(promise, timeout, timeUnit)) | ||
| .bind(ThreadLocalRandom.current().nextInt(10000, 15000)) | ||
| .addListener((ChannelFuture future) -> { | ||
| if (future.cause() != null) { | ||
| promise.tryFailure(future.cause()); | ||
| future.channel().close(); | ||
| } else { | ||
| RakPing ping = new RakPing(System.currentTimeMillis(), server); | ||
| future.channel().writeAndFlush(ping).addListener(future1 -> { | ||
| if (future1.cause() != null) { | ||
| promise.tryFailure(future1.cause()); | ||
| future.channel().close(); | ||
| } | ||
| }); | ||
| } | ||
| }); | ||
| return promise; | ||
| } | ||
| } |
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