forked from GeyserMC/Geyser
126 lines
5.7 KiB
Java
126 lines
5.7 KiB
Java
/*
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* Copyright (c) 2019-2020 GeyserMC. http://geysermc.org
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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* @author GeyserMC
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* @link https://github.com/GeyserMC/Geyser
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*/
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package org.geysermc.connector.network;
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import com.github.steveice10.mc.protocol.data.message.MessageSerializer;
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import com.nukkitx.protocol.bedrock.BedrockPong;
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import com.nukkitx.protocol.bedrock.BedrockServerEventHandler;
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import com.nukkitx.protocol.bedrock.BedrockServerSession;
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import io.netty.channel.ChannelHandlerContext;
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import io.netty.channel.socket.DatagramPacket;
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import org.geysermc.connector.common.ping.GeyserPingInfo;
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import org.geysermc.connector.GeyserConnector;
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import org.geysermc.connector.configuration.GeyserConfiguration;
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import org.geysermc.connector.network.session.GeyserSession;
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import org.geysermc.connector.ping.IGeyserPingPassthrough;
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import org.geysermc.connector.utils.MessageUtils;
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import java.net.InetSocketAddress;
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public class ConnectorServerEventHandler implements BedrockServerEventHandler {
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private final GeyserConnector connector;
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public ConnectorServerEventHandler(GeyserConnector connector) {
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this.connector = connector;
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}
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@Override
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public boolean onConnectionRequest(InetSocketAddress inetSocketAddress) {
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connector.getLogger().info(inetSocketAddress + " tried to connect!");
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return true;
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}
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@Override
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public BedrockPong onQuery(InetSocketAddress inetSocketAddress) {
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connector.getLogger().debug(inetSocketAddress + " has pinged you!");
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GeyserConfiguration config = connector.getConfig();
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GeyserPingInfo pingInfo = null;
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if (config.isPassthroughMotd() || config.isPassthroughPlayerCounts()) {
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IGeyserPingPassthrough pingPassthrough = connector.getBootstrap().getGeyserPingPassthrough();
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pingInfo = pingPassthrough.getPingInformation();
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}
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BedrockPong pong = new BedrockPong();
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pong.setEdition("MCPE");
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pong.setGameType("Default");
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pong.setNintendoLimited(false);
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pong.setProtocolVersion(GeyserConnector.BEDROCK_PACKET_CODEC.getProtocolVersion());
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pong.setVersion(null); // Server tries to connect either way and it looks better
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pong.setIpv4Port(config.getBedrock().getPort());
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if (config.isPassthroughMotd() && pingInfo != null && pingInfo.getDescription() != null) {
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String[] motd = MessageUtils.getBedrockMessage(MessageSerializer.fromString(pingInfo.getDescription())).split("\n");
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String mainMotd = motd[0]; // First line of the motd.
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String subMotd = (motd.length != 1) ? motd[1] : ""; // Second line of the motd if present, otherwise blank.
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pong.setMotd(mainMotd.trim());
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pong.setSubMotd(subMotd.trim()); // Trimmed to shift it to the left, prevents the universe from collapsing on us just because we went 2 characters over the text box's limit.
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} else {
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pong.setMotd(config.getBedrock().getMotd1());
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pong.setSubMotd(config.getBedrock().getMotd2());
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}
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if (config.isPassthroughPlayerCounts() && pingInfo != null) {
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pong.setPlayerCount(pingInfo.getPlayers().getOnline());
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pong.setMaximumPlayerCount(pingInfo.getPlayers().getMax());
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} else {
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pong.setPlayerCount(connector.getPlayers().size());
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pong.setMaximumPlayerCount(config.getMaxPlayers());
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}
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//Bedrock will not even attempt a connection if the client thinks the server is full
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//so we have to fake it not being full
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if (pong.getPlayerCount() >= pong.getMaximumPlayerCount()) {
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pong.setMaximumPlayerCount(pong.getPlayerCount() + 1);
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}
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return pong;
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}
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@Override
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public void onSessionCreation(BedrockServerSession bedrockServerSession) {
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bedrockServerSession.setLogging(true);
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bedrockServerSession.setPacketHandler(new UpstreamPacketHandler(connector, new GeyserSession(connector, bedrockServerSession)));
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bedrockServerSession.addDisconnectHandler(disconnectReason -> {
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connector.getLogger().info("Bedrock user with ip: " + bedrockServerSession.getAddress().getAddress() + " has disconnected for reason " + disconnectReason);
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GeyserSession player = connector.getPlayers().get(bedrockServerSession.getAddress());
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if (player != null) {
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player.disconnect(disconnectReason.name());
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connector.removePlayer(player);
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}
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});
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bedrockServerSession.setPacketCodec(GeyserConnector.BEDROCK_PACKET_CODEC);
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}
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@Override
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public void onUnhandledDatagram(ChannelHandlerContext ctx, DatagramPacket packet) {
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new QueryPacketHandler(connector, packet.sender(), packet.content());
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}
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} |