mirror of https://github.com/GeyserMC/Geyser.git
81 lines
3.4 KiB
Java
81 lines
3.4 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.translators.java;
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import com.github.steveice10.mc.protocol.packet.ingame.client.ClientPluginMessagePacket;
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import com.github.steveice10.mc.protocol.packet.ingame.server.ServerPluginMessagePacket;
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import com.google.common.base.Charsets;
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import org.geysermc.connector.common.AuthType;
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import org.geysermc.connector.network.session.GeyserSession;
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import org.geysermc.connector.network.translators.PacketTranslator;
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import org.geysermc.connector.network.translators.Translator;
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import org.geysermc.cumulus.Form;
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import org.geysermc.cumulus.Forms;
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import org.geysermc.cumulus.util.FormType;
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import java.nio.charset.StandardCharsets;
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@Translator(packet = ServerPluginMessagePacket.class)
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public class JavaPluginMessageTranslator extends PacketTranslator<ServerPluginMessagePacket> {
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@Override
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public void translate(ServerPluginMessagePacket packet, GeyserSession session) {
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// The only plugin messages it has to listen for are Floodgate plugin messages
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if (session.getRemoteAuthType() != AuthType.FLOODGATE) {
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return;
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}
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String channel = packet.getChannel();
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if (channel.equals("floodgate:form")) {
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byte[] data = packet.getData();
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// receive: first byte is form type, second and third are the id, remaining is the form data
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// respond: first and second byte id, remaining is form response data
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FormType type = FormType.getByOrdinal(data[0]);
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if (type == null) {
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throw new NullPointerException(
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"Got type " + data[0] + " which isn't a valid form type!");
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}
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String dataString = new String(data, 3, data.length - 3, Charsets.UTF_8);
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Form form = Forms.fromJson(dataString, type);
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form.setResponseHandler(response -> {
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byte[] raw = response.getBytes(StandardCharsets.UTF_8);
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byte[] finalData = new byte[raw.length + 2];
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finalData[0] = data[1];
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finalData[1] = data[2];
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System.arraycopy(raw, 0, finalData, 2, raw.length);
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session.sendDownstreamPacket(new ClientPluginMessagePacket(channel, finalData));
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});
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session.sendForm(form);
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}
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}
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}
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