forked from GeyserMC/Geyser
238 lines
11 KiB
Java
238 lines
11 KiB
Java
/*
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* Copyright (c) 2019-2021 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.nukkitx.protocol.bedrock.BedrockPacket;
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import com.nukkitx.protocol.bedrock.data.ResourcePackType;
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import com.nukkitx.protocol.bedrock.BedrockPacketCodec;
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import com.nukkitx.protocol.bedrock.packet.*;
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import org.geysermc.connector.GeyserConnector;
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import org.geysermc.connector.common.AuthType;
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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.network.session.cache.AdvancementsCache;
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import org.geysermc.connector.network.translators.PacketTranslatorRegistry;
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import org.geysermc.connector.utils.*;
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import java.io.FileInputStream;
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import java.io.InputStream;
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public class UpstreamPacketHandler extends LoggingPacketHandler {
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public UpstreamPacketHandler(GeyserConnector connector, GeyserSession session) {
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super(connector, session);
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}
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private boolean translateAndDefault(BedrockPacket packet) {
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return PacketTranslatorRegistry.BEDROCK_TRANSLATOR.translate(packet.getClass(), packet, session);
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}
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@Override
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public boolean handle(LoginPacket loginPacket) {
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BedrockPacketCodec packetCodec = BedrockProtocol.getBedrockCodec(loginPacket.getProtocolVersion());
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if (packetCodec == null) {
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if (loginPacket.getProtocolVersion() > BedrockProtocol.DEFAULT_BEDROCK_CODEC.getProtocolVersion()) {
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// Too early to determine session locale
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session.getConnector().getLogger().info(LanguageUtils.getLocaleStringLog("geyser.network.outdated.server", BedrockProtocol.DEFAULT_BEDROCK_CODEC.getMinecraftVersion()));
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session.disconnect(LanguageUtils.getLocaleStringLog("geyser.network.outdated.server", BedrockProtocol.DEFAULT_BEDROCK_CODEC.getMinecraftVersion()));
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return true;
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} else if (loginPacket.getProtocolVersion() < BedrockProtocol.DEFAULT_BEDROCK_CODEC.getProtocolVersion()) {
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session.getConnector().getLogger().info(LanguageUtils.getLocaleStringLog("geyser.network.outdated.client", BedrockProtocol.DEFAULT_BEDROCK_CODEC.getMinecraftVersion()));
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session.disconnect(LanguageUtils.getLocaleStringLog("geyser.network.outdated.client", BedrockProtocol.DEFAULT_BEDROCK_CODEC.getMinecraftVersion()));
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return true;
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}
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}
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session.getUpstream().getSession().setPacketCodec(packetCodec);
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LoginEncryptionUtils.encryptPlayerConnection(connector, session, loginPacket);
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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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ResourcePacksInfoPacket resourcePacksInfo = new ResourcePacksInfoPacket();
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for(ResourcePack resourcePack : ResourcePack.PACKS.values()) {
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ResourcePackManifest.Header header = resourcePack.getManifest().getHeader();
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resourcePacksInfo.getResourcePackInfos().add(new ResourcePacksInfoPacket.Entry(
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header.getUuid().toString(), header.getVersionString(), resourcePack.getFile().length(),
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"", "", "", false, false));
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}
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resourcePacksInfo.setForcedToAccept(GeyserConnector.getInstance().getConfig().isForceResourcePacks());
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session.sendUpstreamPacket(resourcePacksInfo);
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return true;
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}
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@Override
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public boolean handle(ResourcePackClientResponsePacket packet) {
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switch (packet.getStatus()) {
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case COMPLETED:
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session.connect(connector.getRemoteServer());
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connector.getLogger().info(LanguageUtils.getLocaleStringLog("geyser.network.connect", session.getAuthData().getName()));
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break;
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case SEND_PACKS:
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for(String id : packet.getPackIds()) {
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ResourcePackDataInfoPacket data = new ResourcePackDataInfoPacket();
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String[] packID = id.split("_");
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ResourcePack pack = ResourcePack.PACKS.get(packID[0]);
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ResourcePackManifest.Header header = pack.getManifest().getHeader();
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data.setPackId(header.getUuid());
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int chunkCount = (int) Math.ceil((int) pack.getFile().length() / (double) ResourcePack.CHUNK_SIZE);
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data.setChunkCount(chunkCount);
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data.setCompressedPackSize(pack.getFile().length());
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data.setMaxChunkSize(ResourcePack.CHUNK_SIZE);
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data.setHash(pack.getSha256());
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data.setPackVersion(packID[1]);
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data.setPremium(false);
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data.setType(ResourcePackType.RESOURCE);
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session.sendUpstreamPacket(data);
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}
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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 : ResourcePack.PACKS.values()) {
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ResourcePackManifest.Header header = pack.getManifest().getHeader();
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stackPacket.getResourcePacks().add(new ResourcePackStackPacket.Entry(header.getUuid().toString(), header.getVersionString(), ""));
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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 true;
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}
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@Override
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public boolean handle(ModalFormResponsePacket packet) {
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switch (packet.getFormId()) {
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case AdvancementsCache.ADVANCEMENT_INFO_FORM_ID:
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return session.getAdvancementsCache().handleInfoForm(packet.getFormData());
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case AdvancementsCache.ADVANCEMENTS_LIST_FORM_ID:
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return session.getAdvancementsCache().handleListForm(packet.getFormData());
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case AdvancementsCache.ADVANCEMENTS_MENU_FORM_ID:
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return session.getAdvancementsCache().handleMenuForm(packet.getFormData());
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case SettingsUtils.SETTINGS_FORM_ID:
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return SettingsUtils.handleSettingsForm(session, packet.getFormData());
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case StatisticsUtils.STATISTICS_LIST_FORM_ID:
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return StatisticsUtils.handleListForm(session, packet.getFormData());
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case StatisticsUtils.STATISTICS_MENU_FORM_ID:
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return StatisticsUtils.handleMenuForm(session, packet.getFormData());
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}
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return LoginEncryptionUtils.authenticateFromForm(session, connector, packet.getFormId(), packet.getFormData());
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}
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private boolean couldLoginUserByName(String bedrockUsername) {
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if (connector.getConfig().getUserAuths() != null) {
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GeyserConfiguration.IUserAuthenticationInfo info = connector.getConfig().getUserAuths().get(bedrockUsername);
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if (info != null) {
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connector.getLogger().info(LanguageUtils.getLocaleStringLog("geyser.auth.stored_credentials", session.getAuthData().getName()));
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session.setMicrosoftAccount(info.isMicrosoftAccount());
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session.authenticate(info.getEmail(), info.getPassword());
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// TODO send a message to bedrock user telling them they are connected (if nothing like a motd
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// somes from the Java server w/in a few seconds)
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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 boolean handle(SetLocalPlayerAsInitializedPacket packet) {
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LanguageUtils.loadGeyserLocale(session.getLocale());
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if (!session.isLoggedIn() && !session.isLoggingIn() && session.getConnector().getAuthType() == AuthType.ONLINE) {
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// TODO it is safer to key authentication on something that won't change (UUID, not username)
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if (!couldLoginUserByName(session.getAuthData().getName())) {
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LoginEncryptionUtils.showLoginWindow(session);
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}
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// else we were able to log the user in
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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 boolean 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(LanguageUtils.getPlayerLocaleString("geyser.auth.login.wait", session.getLocale()));
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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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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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boolean defaultHandler(BedrockPacket packet) {
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return translateAndDefault(packet);
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}
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@Override
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public boolean handle(ResourcePackChunkRequestPacket packet) {
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ResourcePackChunkDataPacket data = new ResourcePackChunkDataPacket();
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ResourcePack pack = ResourcePack.PACKS.get(packet.getPackId().toString());
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data.setChunkIndex(packet.getChunkIndex());
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data.setProgress(packet.getChunkIndex() * ResourcePack.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() * ResourcePack.CHUNK_SIZE;
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byte[] packData = new byte[(int) MathUtils.constrain(pack.getFile().length() - offset, 0, ResourcePack.CHUNK_SIZE)];
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try (InputStream inputStream = new FileInputStream(pack.getFile())) {
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inputStream.skip(offset);
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inputStream.read(packData, 0, packData.length);
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} catch (Exception e) {
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e.printStackTrace();
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}
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data.setData(packData);
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session.sendUpstreamPacket(data);
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return true;
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}
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}
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