mirror of https://github.com/GeyserMC/Geyser.git
351 lines
16 KiB
Java
351 lines
16 KiB
Java
/*
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* Copyright (c) 2019-2022 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.geyser.network;
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import io.netty.buffer.Unpooled;
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import org.cloudburstmc.protocol.bedrock.BedrockDisconnectReasons;
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import org.cloudburstmc.protocol.bedrock.codec.BedrockCodec;
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import org.cloudburstmc.protocol.bedrock.data.ExperimentData;
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import org.cloudburstmc.protocol.bedrock.data.PacketCompressionAlgorithm;
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import org.cloudburstmc.protocol.bedrock.data.ResourcePackType;
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import org.cloudburstmc.protocol.bedrock.packet.BedrockPacket;
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import org.cloudburstmc.protocol.bedrock.packet.LoginPacket;
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import org.cloudburstmc.protocol.bedrock.packet.ModalFormResponsePacket;
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import org.cloudburstmc.protocol.bedrock.packet.MovePlayerPacket;
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import org.cloudburstmc.protocol.bedrock.packet.NetworkSettingsPacket;
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import org.cloudburstmc.protocol.bedrock.packet.PlayStatusPacket;
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import org.cloudburstmc.protocol.bedrock.packet.RequestNetworkSettingsPacket;
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import org.cloudburstmc.protocol.bedrock.packet.ResourcePackChunkDataPacket;
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import org.cloudburstmc.protocol.bedrock.packet.ResourcePackChunkRequestPacket;
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import org.cloudburstmc.protocol.bedrock.packet.ResourcePackClientResponsePacket;
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import org.cloudburstmc.protocol.bedrock.packet.ResourcePackDataInfoPacket;
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import org.cloudburstmc.protocol.bedrock.packet.ResourcePackStackPacket;
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import org.cloudburstmc.protocol.bedrock.packet.ResourcePacksInfoPacket;
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import org.cloudburstmc.protocol.bedrock.packet.SetTitlePacket;
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import org.cloudburstmc.protocol.common.PacketSignal;
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import org.geysermc.geyser.Constants;
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import org.geysermc.geyser.GeyserImpl;
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import org.geysermc.geyser.api.network.AuthType;
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import org.geysermc.geyser.api.pack.PackCodec;
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import org.geysermc.geyser.api.pack.ResourcePack;
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import org.geysermc.geyser.api.pack.ResourcePackManifest;
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import org.geysermc.geyser.configuration.GeyserConfiguration;
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import org.geysermc.geyser.event.type.SessionLoadResourcePacksEventImpl;
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import org.geysermc.geyser.pack.GeyserResourcePack;
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import org.geysermc.geyser.registry.BlockRegistries;
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import org.geysermc.geyser.registry.Registries;
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import org.geysermc.geyser.session.GeyserSession;
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import org.geysermc.geyser.session.PendingMicrosoftAuthentication;
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import org.geysermc.geyser.text.GeyserLocale;
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import org.geysermc.geyser.util.LoginEncryptionUtils;
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import org.geysermc.geyser.util.MathUtils;
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import org.geysermc.geyser.util.VersionCheckUtils;
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import java.io.IOException;
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import java.nio.ByteBuffer;
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import java.nio.channels.SeekableByteChannel;
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import java.util.ArrayDeque;
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import java.util.Deque;
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import java.util.HashMap;
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import java.util.OptionalInt;
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public class UpstreamPacketHandler extends LoggingPacketHandler {
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private boolean networkSettingsRequested = false;
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private final Deque<String> packsToSent = new ArrayDeque<>();
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private SessionLoadResourcePacksEventImpl resourcePackLoadEvent;
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public UpstreamPacketHandler(GeyserImpl geyser, GeyserSession session) {
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super(geyser, session);
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}
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private PacketSignal translateAndDefault(BedrockPacket packet) {
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Registries.BEDROCK_PACKET_TRANSLATORS.translate(packet.getClass(), packet, session);
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return PacketSignal.HANDLED; // PacketSignal.UNHANDLED will log a WARN publicly
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}
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@Override
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PacketSignal defaultHandler(BedrockPacket packet) {
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return translateAndDefault(packet);
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}
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private boolean setCorrectCodec(int protocolVersion) {
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BedrockCodec packetCodec = GameProtocol.getBedrockCodec(protocolVersion);
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if (packetCodec == null) {
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String supportedVersions = GameProtocol.getAllSupportedBedrockVersions();
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if (protocolVersion > GameProtocol.DEFAULT_BEDROCK_CODEC.getProtocolVersion()) {
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// Too early to determine session locale
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String disconnectMessage = GeyserLocale.getLocaleStringLog("geyser.network.outdated.server", supportedVersions);
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// If the latest release matches this version, then let the user know.
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OptionalInt latestRelease = VersionCheckUtils.getLatestBedrockRelease();
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if (latestRelease.isPresent() && latestRelease.getAsInt() == protocolVersion) {
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// Random note: don't make the disconnect message too long or Bedrock will cut it off on smaller screens
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disconnectMessage += "\n" + GeyserLocale.getLocaleStringLog("geyser.version.new.on_disconnect", Constants.GEYSER_DOWNLOAD_LOCATION);
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}
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session.disconnect(disconnectMessage);
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return false;
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} else if (protocolVersion < GameProtocol.DEFAULT_BEDROCK_CODEC.getProtocolVersion()) {
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session.disconnect(GeyserLocale.getLocaleStringLog("geyser.network.outdated.client", supportedVersions));
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return false;
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}
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}
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session.getUpstream().getSession().setCodec(packetCodec);
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return true;
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}
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@Override
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public void onDisconnect(String reason) {
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// Use our own disconnect messages for these reasons
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if (BedrockDisconnectReasons.CLOSED.equals(reason)) {
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this.session.getUpstream().getSession().setDisconnectReason(GeyserLocale.getLocaleStringLog("geyser.network.disconnect.closed_by_remote_peer"));
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} else if (BedrockDisconnectReasons.TIMEOUT.equals(reason)) {
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this.session.getUpstream().getSession().setDisconnectReason(GeyserLocale.getLocaleStringLog("geyser.network.disconnect.timed_out"));
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}
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this.session.disconnect(this.session.getUpstream().getSession().getDisconnectReason());
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}
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@Override
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public PacketSignal handle(RequestNetworkSettingsPacket packet) {
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if (!setCorrectCodec(packet.getProtocolVersion())) {
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return PacketSignal.HANDLED;
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}
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// New since 1.19.30 - sent before login packet
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PacketCompressionAlgorithm algorithm = PacketCompressionAlgorithm.ZLIB;
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NetworkSettingsPacket responsePacket = new NetworkSettingsPacket();
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responsePacket.setCompressionAlgorithm(algorithm);
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responsePacket.setCompressionThreshold(512);
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session.sendUpstreamPacketImmediately(responsePacket);
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session.getUpstream().getSession().setCompression(algorithm);
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session.getUpstream().getSession().setCompressionLevel(this.geyser.getConfig().getBedrock().getCompressionLevel());
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networkSettingsRequested = true;
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return PacketSignal.HANDLED;
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}
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@Override
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public PacketSignal handle(LoginPacket loginPacket) {
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if (geyser.isShuttingDown()) {
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// Don't allow new players in if we're no longer operating
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session.disconnect(GeyserLocale.getLocaleStringLog("geyser.core.shutdown.kick.message"));
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return PacketSignal.HANDLED;
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}
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if (!networkSettingsRequested) {
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session.disconnect(GeyserLocale.getLocaleStringLog("geyser.network.outdated.client", GameProtocol.getAllSupportedBedrockVersions()));
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return PacketSignal.HANDLED;
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}
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// Set the block translation based off of version
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session.setBlockMappings(BlockRegistries.BLOCKS.forVersion(loginPacket.getProtocolVersion()));
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session.setItemMappings(Registries.ITEMS.forVersion(loginPacket.getProtocolVersion()));
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LoginEncryptionUtils.encryptPlayerConnection(session, loginPacket);
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if (session.isClosed()) {
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// Can happen if Xbox validation fails
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return PacketSignal.HANDLED;
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}
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PlayStatusPacket playStatus = new PlayStatusPacket();
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playStatus.setStatus(PlayStatusPacket.Status.LOGIN_SUCCESS);
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session.sendUpstreamPacket(playStatus);
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geyser.getSessionManager().addPendingSession(session);
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this.resourcePackLoadEvent = new SessionLoadResourcePacksEventImpl(session, new HashMap<>(Registries.RESOURCE_PACKS.get()));
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this.geyser.eventBus().fire(this.resourcePackLoadEvent);
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ResourcePacksInfoPacket resourcePacksInfo = new ResourcePacksInfoPacket();
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for (ResourcePack pack : this.resourcePackLoadEvent.resourcePacks()) {
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PackCodec codec = pack.codec();
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ResourcePackManifest.Header header = pack.manifest().header();
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resourcePacksInfo.getResourcePackInfos().add(new ResourcePacksInfoPacket.Entry(
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header.uuid().toString(), header.version().toString(), codec.size(), pack.contentKey(),
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"", header.uuid().toString(), false, false));
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}
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resourcePacksInfo.setForcedToAccept(GeyserImpl.getInstance().getConfig().isForceResourcePacks());
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session.sendUpstreamPacket(resourcePacksInfo);
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GeyserLocale.loadGeyserLocale(session.locale());
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return PacketSignal.HANDLED;
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}
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@Override
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public PacketSignal handle(ResourcePackClientResponsePacket packet) {
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switch (packet.getStatus()) {
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case COMPLETED:
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if (geyser.getConfig().getRemote().authType() != AuthType.ONLINE) {
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session.authenticate(session.getAuthData().name());
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} else if (!couldLoginUserByName(session.getAuthData().name())) {
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// We must spawn the white world
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session.connect();
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}
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geyser.getLogger().info(GeyserLocale.getLocaleStringLog("geyser.network.connect", session.getAuthData().name()));
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break;
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case SEND_PACKS:
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packsToSent.addAll(packet.getPackIds());
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sendPackDataInfo(packsToSent.pop());
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break;
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case HAVE_ALL_PACKS:
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ResourcePackStackPacket stackPacket = new ResourcePackStackPacket();
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stackPacket.setExperimentsPreviouslyToggled(false);
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stackPacket.setForcedToAccept(false); // Leaving this as false allows the player to choose to download or not
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stackPacket.setGameVersion(session.getClientData().getGameVersion());
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for (ResourcePack pack : this.resourcePackLoadEvent.resourcePacks()) {
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ResourcePackManifest.Header header = pack.manifest().header();
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stackPacket.getResourcePacks().add(new ResourcePackStackPacket.Entry(header.uuid().toString(), header.version().toString(), ""));
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}
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if (GeyserImpl.getInstance().getConfig().isAddNonBedrockItems()) {
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// Allow custom items to work
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stackPacket.getExperiments().add(new ExperimentData("data_driven_items", true));
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}
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session.sendUpstreamPacket(stackPacket);
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break;
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default:
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session.disconnect("disconnectionScreen.resourcePack");
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break;
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}
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return PacketSignal.HANDLED;
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}
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@Override
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public PacketSignal handle(ModalFormResponsePacket packet) {
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session.executeInEventLoop(() -> session.getFormCache().handleResponse(packet));
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return PacketSignal.HANDLED;
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}
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private boolean couldLoginUserByName(String bedrockUsername) {
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if (geyser.getConfig().getSavedUserLogins().contains(bedrockUsername)) {
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String refreshToken = geyser.refreshTokenFor(bedrockUsername);
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if (refreshToken != null) {
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geyser.getLogger().info(GeyserLocale.getLocaleStringLog("geyser.auth.stored_credentials", session.getAuthData().name()));
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session.authenticateWithRefreshToken(refreshToken);
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return true;
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}
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}
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if (geyser.getConfig().getUserAuths() != null) {
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GeyserConfiguration.IUserAuthenticationInfo info = geyser.getConfig().getUserAuths().get(bedrockUsername);
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if (info != null) {
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geyser.getLogger().info(GeyserLocale.getLocaleStringLog("geyser.auth.stored_credentials", session.getAuthData().name()));
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session.setMicrosoftAccount(info.isMicrosoftAccount());
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session.authenticate(info.getEmail(), info.getPassword());
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return true;
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}
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}
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PendingMicrosoftAuthentication.AuthenticationTask task = geyser.getPendingMicrosoftAuthentication().getTask(session.getAuthData().xuid());
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if (task != null) {
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if (task.getAuthentication().isDone() && session.onMicrosoftLoginComplete(task)) {
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return true;
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}
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}
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return false;
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}
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@Override
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public PacketSignal handle(MovePlayerPacket packet) {
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if (session.isLoggingIn()) {
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SetTitlePacket titlePacket = new SetTitlePacket();
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titlePacket.setType(SetTitlePacket.Type.ACTIONBAR);
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titlePacket.setText(GeyserLocale.getPlayerLocaleString("geyser.auth.login.wait", session.locale()));
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titlePacket.setFadeInTime(0);
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titlePacket.setFadeOutTime(1);
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titlePacket.setStayTime(2);
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titlePacket.setXuid("");
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titlePacket.setPlatformOnlineId("");
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session.sendUpstreamPacket(titlePacket);
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}
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return translateAndDefault(packet);
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}
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@Override
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public PacketSignal handle(ResourcePackChunkRequestPacket packet) {
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ResourcePackChunkDataPacket data = new ResourcePackChunkDataPacket();
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ResourcePack pack = this.resourcePackLoadEvent.getPacks().get(packet.getPackId().toString());
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PackCodec codec = pack.codec();
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data.setChunkIndex(packet.getChunkIndex());
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data.setProgress((long) packet.getChunkIndex() * GeyserResourcePack.CHUNK_SIZE);
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data.setPackVersion(packet.getPackVersion());
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data.setPackId(packet.getPackId());
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int offset = packet.getChunkIndex() * GeyserResourcePack.CHUNK_SIZE;
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long remainingSize = codec.size() - offset;
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byte[] packData = new byte[(int) MathUtils.constrain(remainingSize, 0, GeyserResourcePack.CHUNK_SIZE)];
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try (SeekableByteChannel channel = codec.serialize(pack)) {
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channel.position(offset);
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channel.read(ByteBuffer.wrap(packData, 0, packData.length));
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} catch (IOException e) {
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e.printStackTrace();
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}
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data.setData(Unpooled.wrappedBuffer(packData));
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session.sendUpstreamPacket(data);
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// Check if it is the last chunk and send next pack in queue when available.
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if (remainingSize <= GeyserResourcePack.CHUNK_SIZE && !packsToSent.isEmpty()) {
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sendPackDataInfo(packsToSent.pop());
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}
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return PacketSignal.HANDLED;
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}
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private void sendPackDataInfo(String id) {
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ResourcePackDataInfoPacket data = new ResourcePackDataInfoPacket();
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String[] packID = id.split("_");
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ResourcePack pack = this.resourcePackLoadEvent.getPacks().get(packID[0]);
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PackCodec codec = pack.codec();
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ResourcePackManifest.Header header = pack.manifest().header();
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data.setPackId(header.uuid());
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int chunkCount = (int) Math.ceil(codec.size() / (double) GeyserResourcePack.CHUNK_SIZE);
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data.setChunkCount(chunkCount);
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data.setCompressedPackSize(codec.size());
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data.setMaxChunkSize(GeyserResourcePack.CHUNK_SIZE);
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data.setHash(codec.sha256());
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data.setPackVersion(packID[1]);
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data.setPremium(false);
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data.setType(ResourcePackType.RESOURCES);
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session.sendUpstreamPacket(data);
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}
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}
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