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Mirror von https://github.com/PaperMC/Velocity.git synchronisiert 2024-12-24 15:20:35 +01:00
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Add 1.7 Protocol Support

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Dieser Commit ist enthalten in:
Gabik21 2019-07-01 08:54:34 +02:00
Ursprung f0ba7e1eea
Commit 5c314c9068
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GPG-Schlüssel-ID: A95DB353715365DF
25 geänderte Dateien mit 485 neuen und 145 gelöschten Zeilen
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4
api/src/main/java/com/velocitypowered/api/network/ProtocolVersion.java
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@ -13,6 +13,8 @@ import java.util.Set;
public enum ProtocolVersion {
UNKNOWN(-1, "Unknown"),
LEGACY(-2, "Legacy"),
MINECRAFT_1_7_2(4, "1.7.2"),
MINECRAFT_1_7_6(5, "1.7.6"),
MINECRAFT_1_8(47, "1.8"),
MINECRAFT_1_9(107, "1.9"),
MINECRAFT_1_9_1(108, "1.9.1"),
@ -38,7 +40,7 @@ public enum ProtocolVersion {
/**
* Represents the lowest supported version.
*/
public static final ProtocolVersion MINIMUM_VERSION = MINECRAFT_1_8;
public static final ProtocolVersion MINIMUM_VERSION = MINECRAFT_1_7_2;
/**
* Represents the highest supported version.
*/

4
proxy/src/main/java/com/velocitypowered/proxy/connection/ConnectionTypes.java
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@ -3,6 +3,7 @@ package com.velocitypowered.proxy.connection;
import com.velocitypowered.proxy.connection.backend.BackendConnectionPhases;
import com.velocitypowered.proxy.connection.client.ClientConnectionPhases;
import com.velocitypowered.proxy.connection.forge.legacy.LegacyForgeConnectionType;
import com.velocitypowered.proxy.connection.forge.legacy.LegacyForgeHandshakeClientPhase;
import com.velocitypowered.proxy.connection.util.ConnectionTypeImpl;
/**
@ -24,6 +25,9 @@ public final class ConnectionTypes {
public static final ConnectionType VANILLA =
new ConnectionTypeImpl(ClientConnectionPhases.VANILLA, BackendConnectionPhases.VANILLA);
public static final ConnectionType UNDETERMINED_17 = new ConnectionTypeImpl(
LegacyForgeHandshakeClientPhase.NOT_STARTED, BackendConnectionPhases.UNKNOWN);
/**
* Indicates that the connection is a 1.8-1.12 Forge
* connection.

7
proxy/src/main/java/com/velocitypowered/proxy/connection/backend/BackendPlaySessionHandler.java
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@ -5,20 +5,17 @@ import com.mojang.brigadier.builder.LiteralArgumentBuilder;
import com.mojang.brigadier.builder.RequiredArgumentBuilder;
import com.mojang.brigadier.tree.LiteralCommandNode;
import com.velocitypowered.api.event.connection.PluginMessageEvent;
import com.velocitypowered.api.network.ProtocolVersion;
import com.velocitypowered.api.proxy.messages.ChannelIdentifier;
import com.velocitypowered.proxy.VelocityServer;
import com.velocitypowered.proxy.connection.MinecraftConnection;
import com.velocitypowered.proxy.connection.MinecraftSessionHandler;
import com.velocitypowered.proxy.connection.client.ClientPlaySessionHandler;
import com.velocitypowered.proxy.connection.forge.legacy.LegacyForgeConstants;
import com.velocitypowered.proxy.connection.util.ConnectionMessages;
import com.velocitypowered.proxy.protocol.MinecraftPacket;
import com.velocitypowered.proxy.protocol.packet.AvailableCommands;
import com.velocitypowered.proxy.protocol.packet.AvailableCommands.ProtocolSuggestionProvider;
import com.velocitypowered.proxy.protocol.packet.BossBar;
import com.velocitypowered.proxy.protocol.packet.Disconnect;
import com.velocitypowered.proxy.protocol.packet.JoinGame;
import com.velocitypowered.proxy.protocol.packet.KeepAlive;
import com.velocitypowered.proxy.protocol.packet.PlayerListItem;
import com.velocitypowered.proxy.protocol.packet.PluginMessage;
@ -103,8 +100,8 @@ public class BackendPlaySessionHandler implements MinecraftSessionHandler {
}
if (PluginMessageUtil.isMcBrand(packet)) {
PluginMessage rewritten = PluginMessageUtil.rewriteMinecraftBrand(packet,
server.getVersion());
PluginMessage rewritten = PluginMessageUtil.rewriteMinecraftBrand(packet, server.getVersion(),
playerConnection.getProtocolVersion());
playerConnection.write(rewritten);
return true;
}

3
proxy/src/main/java/com/velocitypowered/proxy/connection/client/ClientConnectionPhase.java
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@ -1,8 +1,11 @@
package com.velocitypowered.proxy.connection.client;
import com.velocitypowered.api.network.ProtocolVersion;
import com.velocitypowered.proxy.connection.backend.VelocityServerConnection;
import com.velocitypowered.proxy.connection.forge.legacy.LegacyForgeConstants;
import com.velocitypowered.proxy.connection.forge.legacy.LegacyForgeHandshakeClientPhase;
import com.velocitypowered.proxy.protocol.packet.PluginMessage;
import com.velocitypowered.proxy.protocol.util.PluginMessageUtil;
/**
* Provides connection phase specific actions.

8
proxy/src/main/java/com/velocitypowered/proxy/connection/client/ClientPlaySessionHandler.java
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@ -1,6 +1,7 @@
package com.velocitypowered.proxy.connection.client;
import static com.velocitypowered.api.network.ProtocolVersion.MINECRAFT_1_13;
import static com.velocitypowered.api.network.ProtocolVersion.MINECRAFT_1_8;
import static com.velocitypowered.proxy.protocol.util.PluginMessageUtil.constructChannelsPacket;
import com.velocitypowered.api.event.connection.PluginMessageEvent;
@ -32,11 +33,9 @@ import io.netty.buffer.ByteBuf;
import java.util.ArrayDeque;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashSet;
import java.util.List;
import java.util.Optional;
import java.util.Queue;
import java.util.Set;
import java.util.UUID;
import net.kyori.text.TextComponent;
import net.kyori.text.format.TextColor;
@ -218,7 +217,8 @@ public class ClientPlaySessionHandler implements MinecraftSessionHandler {
player.getKnownChannels().removeAll(PluginMessageUtil.getChannels(packet));
backendConn.write(packet);
} else if (PluginMessageUtil.isMcBrand(packet)) {
backendConn.write(PluginMessageUtil.rewriteMinecraftBrand(packet, server.getVersion()));
backendConn.write(PluginMessageUtil
.rewriteMinecraftBrand(packet, server.getVersion(), player.getProtocolVersion()));
} else {
if (serverConn.getPhase() == BackendConnectionPhases.IN_TRANSITION) {
// We must bypass the currently-connected server when forwarding Forge packets.
@ -378,8 +378,10 @@ public class ClientPlaySessionHandler implements MinecraftSessionHandler {
}
// Clear any title from the previous server.
if (player.getProtocolVersion().compareTo(MINECRAFT_1_8) >= 0) {
player.getMinecraftConnection()
.delayedWrite(TitlePacket.resetForProtocolVersion(player.getProtocolVersion()));
}
// Flush everything
player.getMinecraftConnection().flush();

5
proxy/src/main/java/com/velocitypowered/proxy/connection/client/ConnectedPlayer.java
Datei anzeigen

@ -46,6 +46,7 @@ import com.velocitypowered.proxy.protocol.packet.TitlePacket;
import com.velocitypowered.proxy.protocol.util.PluginMessageUtil;
import com.velocitypowered.proxy.server.VelocityRegisteredServer;
import com.velocitypowered.proxy.tablist.VelocityTabList;
import com.velocitypowered.proxy.tablist.VelocityTabListLegacy;
import com.velocitypowered.proxy.util.VelocityMessages;
import com.velocitypowered.proxy.util.collect.CappedSet;
import io.netty.buffer.ByteBufUtil;
@ -102,7 +103,11 @@ public class ConnectedPlayer implements MinecraftConnectionAssociation, Player {
ConnectedPlayer(VelocityServer server, GameProfile profile,
MinecraftConnection minecraftConnection, @Nullable InetSocketAddress virtualHost) {
this.server = server;
if (minecraftConnection.getProtocolVersion().compareTo(ProtocolVersion.MINECRAFT_1_8) >= 0) {
this.tabList = new VelocityTabList(minecraftConnection);
} else {
this.tabList = new VelocityTabListLegacy(minecraftConnection);
}
this.profile = profile;
this.minecraftConnection = minecraftConnection;
this.virtualHost = virtualHost;

4
proxy/src/main/java/com/velocitypowered/proxy/connection/client/HandshakeSessionHandler.java
Datei anzeigen

@ -114,6 +114,10 @@ public class HandshakeSessionHandler implements MinecraftSessionHandler {
if (handshake.getServerAddress().endsWith(LegacyForgeConstants.HANDSHAKE_HOSTNAME_TOKEN)
&& handshake.getProtocolVersion().compareTo(ProtocolVersion.MINECRAFT_1_13) < 0) {
return ConnectionTypes.LEGACY_FORGE;
} else if (handshake.getProtocolVersion().compareTo(ProtocolVersion.MINECRAFT_1_7_6) <= 0) {
// 1.7 Forge will not notify us during handshake. UNDETERMINED will listen for incoming
// forge handshake attempts. Also sends a reset handshake packet on every transition.
return ConnectionTypes.UNDETERMINED_17;
} else {
// For later: See if we can determine Forge 1.13+ here, else this will need to be UNDETERMINED
// until later in the cycle (most likely determinable during the LOGIN phase)

3
proxy/src/main/java/com/velocitypowered/proxy/connection/client/LoginSessionHandler.java
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@ -2,6 +2,7 @@ package com.velocitypowered.proxy.connection.client;
import static com.google.common.net.UrlEscapers.urlFormParameterEscaper;
import static com.velocitypowered.api.network.ProtocolVersion.MINECRAFT_1_13;
import static com.velocitypowered.api.network.ProtocolVersion.MINECRAFT_1_8;
import static com.velocitypowered.proxy.VelocityServer.GSON;
import static com.velocitypowered.proxy.connection.VelocityConstants.EMPTY_BYTE_ARRAY;
import static com.velocitypowered.proxy.connection.VelocityConstants.VELOCITY_IP_FORWARDING_CHANNEL;
@ -249,7 +250,7 @@ public class LoginSessionHandler implements MinecraftSessionHandler {
}
int threshold = server.getConfiguration().getCompressionThreshold();
if (threshold >= 0) {
if (threshold >= 0 && mcConnection.getProtocolVersion().compareTo(MINECRAFT_1_8) >= 0) {
mcConnection.write(new SetCompression(threshold));
mcConnection.setCompressionThreshold(threshold);
}

2
proxy/src/main/java/com/velocitypowered/proxy/connection/forge/legacy/LegacyForgeHandshakeBackendPhase.java
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@ -90,7 +90,7 @@ public enum LegacyForgeHandshakeBackendPhase implements BackendConnectionPhase {
@Nullable private final Integer packetToAdvanceOn;
/**
* Creates an instance of the {@link LegacyForgeHandshakeClientPhase}.
* Creates an instance of the {@link LegacyForgeHandshakeBackendPhase}.
*
* @param packetToAdvanceOn The ID of the packet discriminator that indicates
* that the server has moved onto a new phase, and

96
proxy/src/main/java/com/velocitypowered/proxy/protocol/ProtocolUtils.java
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@ -3,11 +3,11 @@ package com.velocitypowered.proxy.protocol;
import static com.google.common.base.Preconditions.checkArgument;
import static com.google.common.base.Preconditions.checkState;
import com.google.common.base.Preconditions;
import com.velocitypowered.api.network.ProtocolVersion;
import com.velocitypowered.api.util.GameProfile;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.ByteBufUtil;
import java.nio.charset.StandardCharsets;
import java.util.ArrayList;
import java.util.List;
@ -19,6 +19,7 @@ public enum ProtocolUtils {
/**
* Reads a Minecraft-style VarInt from the specified {@code buf}.
*
* @param buf the buffer to read from
* @return the decoded VarInt
*/
@ -40,6 +41,7 @@ public enum ProtocolUtils {
/**
* Writes a Minecraft-style VarInt to the specified {@code buf}.
*
* @param buf the buffer to read from
* @param value the integer to write
*/
@ -60,8 +62,9 @@ public enum ProtocolUtils {
}
/**
* Reads a VarInt length-prefixed string from the {@code buf}, making sure to not go over
* {@code cap} size.
* Reads a VarInt length-prefixed string from the {@code buf}, making sure to not go over {@code
* cap} size.
*
* @param buf the buffer to read from
* @param cap the maximum size of the string, in UTF-8 character length
* @return the decoded string
@ -85,6 +88,7 @@ public enum ProtocolUtils {
/**
* Writes the specified {@code str} to the {@code buf} with a VarInt prefix.
*
* @param buf the buffer to write to
* @param str the string to write
*/
@ -101,6 +105,7 @@ public enum ProtocolUtils {
/**
* Reads a VarInt length-prefixed byte array from the {@code buf}, making sure to not go over
* {@code cap} size.
*
* @param buf the buffer to read from
* @param cap the maximum size of the string, in UTF-8 character length
* @return the byte array
@ -124,6 +129,7 @@ public enum ProtocolUtils {
/**
* Reads an VarInt-prefixed array of VarInt integers from the {@code buf}.
*
* @param buf the buffer to read from
* @return an array of integers
*/
@ -139,6 +145,7 @@ public enum ProtocolUtils {
/**
* Reads an UUID from the {@code buf}.
*
* @param buf the buffer to read from
* @return the UUID from the buffer
*/
@ -155,6 +162,7 @@ public enum ProtocolUtils {
/**
* Writes a list of {@link com.velocitypowered.api.util.GameProfile.Property} to the buffer.
*
* @param buf the buffer to write to
* @param properties the properties to serialize
*/
@ -175,6 +183,7 @@ public enum ProtocolUtils {
/**
* Reads a list of {@link com.velocitypowered.api.util.GameProfile.Property} from the buffer.
*
* @param buf the buffer to read from
* @return the read properties
*/
@ -194,6 +203,87 @@ public enum ProtocolUtils {
return properties;
}
private static final int FORGE_MAX_ARRAY_LENGTH = Integer.MAX_VALUE & 0x1FFF9A;
/**
* Reads an byte array for legacy version 1.7 from the specified {@code buf}
*
* @param buf the buffer to read from
* @return the read byte array
*/
public static byte[] readByteArray17(ByteBuf buf) {
// Read in a 2 or 3 byte number that represents the length of the packet. (3 byte "shorts" for
// Forge only)
// No vanilla packet should give a 3 byte packet
int len = readExtendedForgeShort(buf);
Preconditions.checkArgument(len <= (FORGE_MAX_ARRAY_LENGTH),
"Cannot receive array longer than %s (got %s bytes)", FORGE_MAX_ARRAY_LENGTH, len);
byte[] ret = new byte[len];
buf.readBytes(ret);
return ret;
}
/**
* Writes an byte array for legacy version 1.7 to the specified {@code buf}
*
* @param b array
* @param buf buf
* @param allowExtended forge
*/
public static void writeByteArray17(byte[] b, ByteBuf buf, boolean allowExtended) {
if (allowExtended) {
Preconditions
.checkArgument(b.length <= (FORGE_MAX_ARRAY_LENGTH),
"Cannot send array longer than %s (got %s bytes)", FORGE_MAX_ARRAY_LENGTH,
b.length);
} else {
Preconditions.checkArgument(b.length <= Short.MAX_VALUE,
"Cannot send array longer than Short.MAX_VALUE (got %s bytes)", b.length);
}
// Write a 2 or 3 byte number that represents the length of the packet. (3 byte "shorts" for
// Forge only)
// No vanilla packet should give a 3 byte packet, this method will still retain vanilla
// behaviour.
writeExtendedForgeShort(buf, b.length);
buf.writeBytes(b);
}
/**
* Reads a Minecraft-style extended short from the specified {@code buf}.
*
* @param buf buf to write
* @return read extended short
*/
public static int readExtendedForgeShort(ByteBuf buf) {
int low = buf.readUnsignedShort();
int high = 0;
if ((low & 0x8000) != 0) {
low = low & 0x7FFF;
high = buf.readUnsignedByte();
}
return ((high & 0xFF) << 15) | low;
}
/**
* Writes a Minecraft-style extended short to the specified {@code buf}.
*
* @param buf buf to write
* @param toWrite the extended short to write
*/
public static void writeExtendedForgeShort(ByteBuf buf, int toWrite) {
int low = toWrite & 0x7FFF;
int high = (toWrite & 0x7F8000) >> 15;
if (high != 0) {
low = low | 0x8000;
}
buf.writeShort(low);
if (high != 0) {
buf.writeByte(high);
}
}
public enum Direction {
SERVERBOUND,
CLIENTBOUND;

49
proxy/src/main/java/com/velocitypowered/proxy/protocol/StateRegistry.java
Datei anzeigen

@ -5,6 +5,7 @@ import static com.velocitypowered.api.network.ProtocolVersion.MINECRAFT_1_12;
import static com.velocitypowered.api.network.ProtocolVersion.MINECRAFT_1_12_1;
import static com.velocitypowered.api.network.ProtocolVersion.MINECRAFT_1_13;
import static com.velocitypowered.api.network.ProtocolVersion.MINECRAFT_1_14;
import static com.velocitypowered.api.network.ProtocolVersion.MINECRAFT_1_7_2;
import static com.velocitypowered.api.network.ProtocolVersion.MINECRAFT_1_8;
import static com.velocitypowered.api.network.ProtocolVersion.MINECRAFT_1_9;
import static com.velocitypowered.api.network.ProtocolVersion.MINECRAFT_1_9_4;
@ -44,14 +45,12 @@ import io.netty.util.collection.IntObjectHashMap;
import io.netty.util.collection.IntObjectMap;
import it.unimi.dsi.fastutil.objects.Object2IntMap;
import it.unimi.dsi.fastutil.objects.Object2IntOpenHashMap;
import java.util.Collections;
import java.util.EnumMap;
import java.util.EnumSet;
import java.util.Map;
import java.util.Objects;
import java.util.function.Supplier;
import org.checkerframework.checker.nullness.qual.Nullable;
public enum StateRegistry {
@ -59,20 +58,20 @@ public enum StateRegistry {
HANDSHAKE {
{
serverbound.register(Handshake.class, Handshake::new,
map(0x00, MINECRAFT_1_8, false));
map(0x00, MINECRAFT_1_7_2, false));
}
},
STATUS {
{
serverbound.register(StatusRequest.class, () -> StatusRequest.INSTANCE,
map(0x00, MINECRAFT_1_8, false));
map(0x00, MINECRAFT_1_7_2, false));
serverbound.register(StatusPing.class, StatusPing::new,
map(0x01, MINECRAFT_1_8, false));
map(0x01, MINECRAFT_1_7_2, false));
clientbound.register(StatusResponse.class, StatusResponse::new,
map(0x00, MINECRAFT_1_8, false));
map(0x00, MINECRAFT_1_7_2, false));
clientbound.register(StatusPing.class, StatusPing::new,
map(0x01, MINECRAFT_1_8, false));
map(0x01, MINECRAFT_1_7_2, false));
}
},
PLAY {
@ -81,33 +80,33 @@ public enum StateRegistry {
clientbound.fallback = false;
serverbound.register(TabCompleteRequest.class, TabCompleteRequest::new,
map(0x14, MINECRAFT_1_8, false),
map(0x14, MINECRAFT_1_7_2, false),
map(0x01, MINECRAFT_1_9, false),
map(0x02, MINECRAFT_1_12, false),
map(0x01, MINECRAFT_1_12_1, false),
map(0x05, MINECRAFT_1_13, false),
map(0x06, MINECRAFT_1_14, false));
serverbound.register(Chat.class, Chat::new,
map(0x01, MINECRAFT_1_8, false),
map(0x01, MINECRAFT_1_7_2, false),
map(0x02, MINECRAFT_1_9, false),
map(0x03, MINECRAFT_1_12, false),
map(0x02, MINECRAFT_1_12_1, false),
map(0x03, MINECRAFT_1_14, false));
serverbound.register(ClientSettings.class, ClientSettings::new,
map(0x15, MINECRAFT_1_8, false),
map(0x15, MINECRAFT_1_7_2, false),
map(0x04, MINECRAFT_1_9, false),
map(0x05, MINECRAFT_1_12, false),
map(0x04, MINECRAFT_1_12_1, false),
map(0x05, MINECRAFT_1_14, false));
serverbound.register(PluginMessage.class, PluginMessage::new,
map(0x17, MINECRAFT_1_8, false),
map(0x17, MINECRAFT_1_7_2, false),
map(0x09, MINECRAFT_1_9, false),
map(0x0A, MINECRAFT_1_12, false),
map(0x09, MINECRAFT_1_12_1, false),
map(0x0A, MINECRAFT_1_13, false),
map(0x0B, MINECRAFT_1_14, false));
serverbound.register(KeepAlive.class, KeepAlive::new,
map(0x00, MINECRAFT_1_8, false),
map(0x00, MINECRAFT_1_7_2, false),
map(0x0B, MINECRAFT_1_9, false),
map(0x0C, MINECRAFT_1_12, false),
map(0x0B, MINECRAFT_1_12_1, false),
@ -123,37 +122,37 @@ public enum StateRegistry {
clientbound.register(BossBar.class, BossBar::new,
map(0x0C, MINECRAFT_1_9, false));
clientbound.register(Chat.class, Chat::new,
map(0x02, MINECRAFT_1_8, true),
map(0x02, MINECRAFT_1_7_2, true),
map(0x0F, MINECRAFT_1_9, true),
map(0x0E, MINECRAFT_1_13, true));
clientbound.register(TabCompleteResponse.class, TabCompleteResponse::new,
map(0x3A, MINECRAFT_1_8, false),
map(0x3A, MINECRAFT_1_7_2, false),
map(0x0E, MINECRAFT_1_9, false),
map(0x10, MINECRAFT_1_13, false));
clientbound.register(AvailableCommands.class, AvailableCommands::new,
map(0x11, MINECRAFT_1_13, false));
clientbound.register(PluginMessage.class, PluginMessage::new,
map(0x3F, MINECRAFT_1_8, false),
map(0x3F, MINECRAFT_1_7_2, false),
map(0x18, MINECRAFT_1_9, false),
map(0x19, MINECRAFT_1_13, false),
map(0x18, MINECRAFT_1_14, false));
clientbound.register(Disconnect.class, Disconnect::new,
map(0x40, MINECRAFT_1_8, false),
map(0x40, MINECRAFT_1_7_2, false),
map(0x1A, MINECRAFT_1_9, false),
map(0x1B, MINECRAFT_1_13, false),
map(0x1A, MINECRAFT_1_14, false));
clientbound.register(KeepAlive.class, KeepAlive::new,
map(0x00, MINECRAFT_1_8, false),
map(0x00, MINECRAFT_1_7_2, false),
map(0x1F, MINECRAFT_1_9, false),
map(0x21, MINECRAFT_1_13, false),
map(0x20, MINECRAFT_1_14, false));
clientbound.register(JoinGame.class, JoinGame::new,
map(0x01, MINECRAFT_1_8, false),
map(0x01, MINECRAFT_1_7_2, false),
map(0x23, MINECRAFT_1_9, false),
map(0x25, MINECRAFT_1_13, false),
map(0x25, MINECRAFT_1_14, false));
clientbound.register(Respawn.class, Respawn::new,
map(0x07, MINECRAFT_1_8, true),
map(0x07, MINECRAFT_1_7_2, true),
map(0x33, MINECRAFT_1_9, true),
map(0x34, MINECRAFT_1_12, true),
map(0x35, MINECRAFT_1_12_1, true),
@ -182,7 +181,7 @@ public enum StateRegistry {
map(0x4B, MINECRAFT_1_13, true),
map(0x4F, MINECRAFT_1_14, true));
clientbound.register(PlayerListItem.class, PlayerListItem::new,
map(0x38, MINECRAFT_1_8, false),
map(0x38, MINECRAFT_1_7_2, false),
map(0x2D, MINECRAFT_1_9, false),
map(0x2E, MINECRAFT_1_12_1, false),
map(0x30, MINECRAFT_1_13, false),
@ -192,17 +191,17 @@ public enum StateRegistry {
LOGIN {
{
serverbound.register(ServerLogin.class, ServerLogin::new,
map(0x00, MINECRAFT_1_8, false));
map(0x00, MINECRAFT_1_7_2, false));
serverbound.register(EncryptionResponse.class, EncryptionResponse::new,
map(0x01, MINECRAFT_1_8, false));
map(0x01, MINECRAFT_1_7_2, false));
serverbound.register(LoginPluginResponse.class, LoginPluginResponse::new,
map(0x02, MINECRAFT_1_13, false));
clientbound.register(Disconnect.class, Disconnect::new,
map(0x00, MINECRAFT_1_8, false));
map(0x00, MINECRAFT_1_7_2, false));
clientbound.register(EncryptionRequest.class, EncryptionRequest::new,
map(0x01, MINECRAFT_1_8, false));
map(0x01, MINECRAFT_1_7_2, false));
clientbound.register(ServerLoginSuccess.class, ServerLoginSuccess::new,
map(0x02, MINECRAFT_1_8, false));
map(0x02, MINECRAFT_1_7_2, false));
clientbound.register(SetCompression.class, SetCompression::new,
map(0x03, MINECRAFT_1_8, false));
clientbound.register(LoginPluginMessage.class, LoginPluginMessage::new,

4
proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/Chat.java
Datei anzeigen

@ -56,7 +56,7 @@ public class Chat implements MinecraftPacket {
@Override
public void decode(ByteBuf buf, ProtocolUtils.Direction direction, ProtocolVersion version) {
message = ProtocolUtils.readString(buf);
if (direction == ProtocolUtils.Direction.CLIENTBOUND) {
if (direction == ProtocolUtils.Direction.CLIENTBOUND && version.compareTo(ProtocolVersion.MINECRAFT_1_8) >= 0) {
type = buf.readByte();
}
}
@ -67,7 +67,7 @@ public class Chat implements MinecraftPacket {
throw new IllegalStateException("Message is not specified");
}
ProtocolUtils.writeString(buf, message);
if (direction == ProtocolUtils.Direction.CLIENTBOUND) {
if (direction == ProtocolUtils.Direction.CLIENTBOUND && version.compareTo(ProtocolVersion.MINECRAFT_1_8) >= 0) {
buf.writeByte(type);
}
}

11
proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/ClientSettings.java
Datei anzeigen

@ -13,6 +13,7 @@ public class ClientSettings implements MinecraftPacket {
private byte viewDistance;
private int chatVisibility;
private boolean chatColors;
private byte difficulty; // 1.7 Protocol
private short skinParts;
private int mainHand;
@ -98,6 +99,11 @@ public class ClientSettings implements MinecraftPacket {
this.viewDistance = buf.readByte();
this.chatVisibility = ProtocolUtils.readVarInt(buf);
this.chatColors = buf.readBoolean();
if (version.compareTo(ProtocolVersion.MINECRAFT_1_7_6) <= 0) {
this.difficulty = buf.readByte();
}
this.skinParts = buf.readUnsignedByte();
if (version.compareTo(ProtocolVersion.MINECRAFT_1_9) >= 0) {
@ -114,6 +120,11 @@ public class ClientSettings implements MinecraftPacket {
buf.writeByte(viewDistance);
ProtocolUtils.writeVarInt(buf, chatVisibility);
buf.writeBoolean(chatColors);
if (version.compareTo(ProtocolVersion.MINECRAFT_1_7_6) <= 0) {
buf.writeByte(difficulty);
}
buf.writeByte(skinParts);
if (version.compareTo(ProtocolVersion.MINECRAFT_1_9) >= 0) {

12
proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/EncryptionRequest.java
Datei anzeigen

@ -42,15 +42,27 @@ public class EncryptionRequest implements MinecraftPacket {
@Override
public void decode(ByteBuf buf, ProtocolUtils.Direction direction, ProtocolVersion version) {
this.serverId = ProtocolUtils.readString(buf, 20);
if (version.compareTo(ProtocolVersion.MINECRAFT_1_8) >= 0) {
publicKey = ProtocolUtils.readByteArray(buf, 256);
verifyToken = ProtocolUtils.readByteArray(buf, 16);
} else {
publicKey = ProtocolUtils.readByteArray17(buf);
verifyToken = ProtocolUtils.readByteArray17(buf);
}
}
@Override
public void encode(ByteBuf buf, ProtocolUtils.Direction direction, ProtocolVersion version) {
ProtocolUtils.writeString(buf, this.serverId);
if (version.compareTo(ProtocolVersion.MINECRAFT_1_8) >= 0) {
ProtocolUtils.writeByteArray(buf, publicKey);
ProtocolUtils.writeByteArray(buf, verifyToken);
} else {
ProtocolUtils.writeByteArray17(publicKey, buf, false);
ProtocolUtils.writeByteArray17(verifyToken, buf, false);
}
}
@Override

10
proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/EncryptionResponse.java
Datei anzeigen

@ -40,14 +40,24 @@ public class EncryptionResponse implements MinecraftPacket {
@Override
public void decode(ByteBuf buf, ProtocolUtils.Direction direction, ProtocolVersion version) {
if (version.compareTo(ProtocolVersion.MINECRAFT_1_8) >= 0) {
this.sharedSecret = ProtocolUtils.readByteArray(buf, 256);
this.verifyToken = ProtocolUtils.readByteArray(buf, 128);
} else {
this.sharedSecret = ProtocolUtils.readByteArray17(buf);
this.verifyToken = ProtocolUtils.readByteArray17(buf);
}
}
@Override
public void encode(ByteBuf buf, ProtocolUtils.Direction direction, ProtocolVersion version) {
if (version.compareTo(ProtocolVersion.MINECRAFT_1_8) >= 0) {
ProtocolUtils.writeByteArray(buf, sharedSecret);
ProtocolUtils.writeByteArray(buf, verifyToken);
} else {
ProtocolUtils.writeByteArray17(sharedSecret, buf, false);
ProtocolUtils.writeByteArray17(verifyToken, buf, false);
}
}
@Override

4
proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/JoinGame.java
Datei anzeigen

@ -116,8 +116,10 @@ public class JoinGame implements MinecraftPacket {
if (version.compareTo(ProtocolVersion.MINECRAFT_1_14) >= 0) {
this.viewDistance = ProtocolUtils.readVarInt(buf);
}
if (version.compareTo(ProtocolVersion.MINECRAFT_1_8) >= 0) {
this.reducedDebugInfo = buf.readBoolean();
}
}
@Override
public void encode(ByteBuf buf, ProtocolUtils.Direction direction, ProtocolVersion version) {
@ -139,8 +141,10 @@ public class JoinGame implements MinecraftPacket {
if (version.compareTo(ProtocolVersion.MINECRAFT_1_14) >= 0) {
ProtocolUtils.writeVarInt(buf, viewDistance);
}
if (version.compareTo(ProtocolVersion.MINECRAFT_1_8) >= 0) {
buf.writeBoolean(reducedDebugInfo);
}
}
@Override
public boolean handle(MinecraftSessionHandler handler) {

8
proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/KeepAlive.java
Datei anzeigen

@ -29,8 +29,10 @@ public class KeepAlive implements MinecraftPacket {
public void decode(ByteBuf buf, ProtocolUtils.Direction direction, ProtocolVersion version) {
if (version.compareTo(ProtocolVersion.MINECRAFT_1_12_2) >= 0) {
randomId = buf.readLong();
} else {
} else if (version.compareTo(ProtocolVersion.MINECRAFT_1_8) >= 0) {
randomId = ProtocolUtils.readVarInt(buf);
} else {
randomId = buf.readInt();
}
}
@ -38,8 +40,10 @@ public class KeepAlive implements MinecraftPacket {
public void encode(ByteBuf buf, ProtocolUtils.Direction direction, ProtocolVersion version) {
if (version.compareTo(ProtocolVersion.MINECRAFT_1_12_2) >= 0) {
buf.writeLong(randomId);
} else {
} else if (version.compareTo(ProtocolVersion.MINECRAFT_1_8) >= 0) {
ProtocolUtils.writeVarInt(buf, (int) randomId);
} else {
buf.writeInt((int) randomId);
}
}

28
proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/PlayerListItem.java
Datei anzeigen

@ -13,6 +13,7 @@ import java.util.List;
import java.util.UUID;
import net.kyori.text.Component;
import net.kyori.text.serializer.gson.GsonComponentSerializer;
import net.kyori.text.serializer.legacy.LegacyComponentSerializer;
import org.checkerframework.checker.nullness.qual.Nullable;
public class PlayerListItem implements MinecraftPacket {
@ -43,6 +44,7 @@ public class PlayerListItem implements MinecraftPacket {
@Override
public void decode(ByteBuf buf, ProtocolUtils.Direction direction, ProtocolVersion version) {
if (version.compareTo(ProtocolVersion.MINECRAFT_1_8) >= 0) {
action = ProtocolUtils.readVarInt(buf);
int length = ProtocolUtils.readVarInt(buf);
@ -73,6 +75,13 @@ public class PlayerListItem implements MinecraftPacket {
throw new UnsupportedOperationException("Unknown action " + action);
}
}
} else {
Item item = new Item();
item.setName(ProtocolUtils.readString(buf));
action = buf.readBoolean() ? ADD_PLAYER : REMOVE_PLAYER;
item.setLatency(buf.readShort());
items.add(item);
}
}
private static @Nullable Component readOptionalComponent(ByteBuf buf) {
@ -84,6 +93,7 @@ public class PlayerListItem implements MinecraftPacket {
@Override
public void encode(ByteBuf buf, ProtocolUtils.Direction direction, ProtocolVersion version) {
if (version.compareTo(ProtocolVersion.MINECRAFT_1_8) >= 0) {
ProtocolUtils.writeVarInt(buf, action);
ProtocolUtils.writeVarInt(buf, items.size());
for (Item item : items) {
@ -113,6 +123,18 @@ public class PlayerListItem implements MinecraftPacket {
throw new UnsupportedOperationException("Unknown action " + action);
}
}
} else {
Item item = items.get(0);
if (item.getDisplayName() != null) {
String displayName = LegacyComponentSerializer.legacy().serialize(item.getDisplayName());
ProtocolUtils.writeString(buf,
displayName.length() > 16 ? displayName.substring(0, 16) : displayName);
} else {
ProtocolUtils.writeString(buf, item.getName());
}
buf.writeBoolean(action != REMOVE_PLAYER);
buf.writeShort(item.getLatency());
}
}
@Override
@ -136,6 +158,10 @@ public class PlayerListItem implements MinecraftPacket {
private int latency;
private @Nullable Component displayName;
public Item() {
uuid = null;
}
public Item(UUID uuid) {
this.uuid = uuid;
}
@ -149,7 +175,7 @@ public class PlayerListItem implements MinecraftPacket {
.setDisplayName(entry.getDisplayName().orElse(null));
}
public UUID getUuid() {
public @Nullable UUID getUuid() {
return uuid;
}

10
proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/PluginMessage.java
Datei anzeigen

@ -7,9 +7,7 @@ import com.velocitypowered.api.network.ProtocolVersion;
import com.velocitypowered.proxy.connection.MinecraftSessionHandler;
import com.velocitypowered.proxy.protocol.MinecraftPacket;
import com.velocitypowered.proxy.protocol.ProtocolUtils;
import com.velocitypowered.proxy.protocol.util.PluginMessageUtil;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.ByteBufUtil;
import org.checkerframework.checker.nullness.qual.Nullable;
public class PluginMessage implements MinecraftPacket {
@ -50,8 +48,12 @@ public class PluginMessage implements MinecraftPacket {
if (version.compareTo(ProtocolVersion.MINECRAFT_1_13) >= 0) {
this.channel = transformLegacyToModernChannel(this.channel);
}
if (version.compareTo(ProtocolVersion.MINECRAFT_1_8) >= 0) {
this.data = new byte[buf.readableBytes()];
buf.readBytes(data);
} else {
data = ProtocolUtils.readByteArray17(buf);
}
}
@Override
@ -64,7 +66,11 @@ public class PluginMessage implements MinecraftPacket {
} else {
ProtocolUtils.writeString(buf, this.channel);
}
if (version.compareTo(ProtocolVersion.MINECRAFT_1_8) >= 0) {
buf.writeBytes(data);
} else {
ProtocolUtils.writeByteArray17(data, buf, true); // True for Forge support
}
}
@Override

5
proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/ServerLoginSuccess.java
Datei anzeigen

@ -1,6 +1,7 @@
package com.velocitypowered.proxy.protocol.packet;
import com.velocitypowered.api.network.ProtocolVersion;
import com.velocitypowered.api.util.UuidUtils;
import com.velocitypowered.proxy.connection.MinecraftSessionHandler;
import com.velocitypowered.proxy.protocol.MinecraftPacket;
import com.velocitypowered.proxy.protocol.ProtocolUtils;
@ -45,7 +46,11 @@ public class ServerLoginSuccess implements MinecraftPacket {
@Override
public void decode(ByteBuf buf, ProtocolUtils.Direction direction, ProtocolVersion version) {
if (version.compareTo(ProtocolVersion.MINECRAFT_1_7_6) >= 0) {
uuid = UUID.fromString(ProtocolUtils.readString(buf, 36));
} else {
uuid = UuidUtils.fromUndashed(ProtocolUtils.readString(buf, 32));
}
username = ProtocolUtils.readString(buf, 16);
}

5
proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/TabCompleteRequest.java
Datei anzeigen

@ -1,6 +1,7 @@
package com.velocitypowered.proxy.protocol.packet;
import static com.velocitypowered.api.network.ProtocolVersion.MINECRAFT_1_13;
import static com.velocitypowered.api.network.ProtocolVersion.MINECRAFT_1_8;
import static com.velocitypowered.api.network.ProtocolVersion.MINECRAFT_1_9;
import com.google.common.base.MoreObjects;
@ -83,12 +84,14 @@ public class TabCompleteRequest implements MinecraftPacket {
if (version.compareTo(MINECRAFT_1_9) >= 0) {
this.assumeCommand = buf.readBoolean();
}
if (version.compareTo(MINECRAFT_1_8) >= 0) {
this.hasPosition = buf.readBoolean();
if (hasPosition) {
this.position = buf.readLong();
}
}
}
}
@Override
public void encode(ByteBuf buf, ProtocolUtils.Direction direction, ProtocolVersion version) {
@ -104,12 +107,14 @@ public class TabCompleteRequest implements MinecraftPacket {
if (version.compareTo(MINECRAFT_1_9) >= 0) {
buf.writeBoolean(assumeCommand);
}
if (version.compareTo(MINECRAFT_1_8) >= 0) {
buf.writeBoolean(hasPosition);
if (hasPosition) {
buf.writeLong(position);
}
}
}
}
@Override
public boolean handle(MinecraftSessionHandler handler) {

15
proxy/src/main/java/com/velocitypowered/proxy/protocol/util/PluginMessageUtil.java
Datei anzeigen

@ -126,14 +126,19 @@ public class PluginMessageUtil {
* @param version the proxy version
* @return the rewritten plugin message
*/
public static PluginMessage rewriteMinecraftBrand(PluginMessage message, ProxyVersion version) {
public static PluginMessage rewriteMinecraftBrand(PluginMessage message, ProxyVersion version,
ProtocolVersion protocolVersion) {
checkNotNull(message, "message");
checkNotNull(version, "version");
checkArgument(isMcBrand(message), "message is not a brand plugin message");
String toAppend = " (" + version.getName() + ")";
PluginMessage newMsg = new PluginMessage();
newMsg.setChannel(message.getChannel());
byte[] rewrittenData;
if (protocolVersion.compareTo(ProtocolVersion.MINECRAFT_1_8) >= 0) {
ByteBuf rewrittenBuf = Unpooled.buffer();
try {
String currentBrand = ProtocolUtils.readString(Unpooled.wrappedBuffer(message.getData()));
@ -143,10 +148,12 @@ public class PluginMessageUtil {
} finally {
rewrittenBuf.release();
}
PluginMessage newMsg = new PluginMessage();
newMsg.setChannel(message.getChannel());
} else {
String currentBrand = new String(message.getData(), StandardCharsets.UTF_8);
rewrittenData = (currentBrand + toAppend).getBytes();
}
newMsg.setData(rewrittenData);
return newMsg;
}

15
proxy/src/main/java/com/velocitypowered/proxy/tablist/VelocityTabList.java
Datei anzeigen

@ -7,6 +7,7 @@ import com.velocitypowered.api.util.GameProfile;
import com.velocitypowered.proxy.connection.MinecraftConnection;
import com.velocitypowered.proxy.protocol.packet.HeaderAndFooter;
import com.velocitypowered.proxy.protocol.packet.PlayerListItem;
import com.velocitypowered.proxy.protocol.packet.PlayerListItem.Item;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
@ -20,8 +21,8 @@ import org.checkerframework.checker.nullness.qual.Nullable;
public class VelocityTabList implements TabList {
private final MinecraftConnection connection;
private final Map<UUID, VelocityTabListEntry> entries = new ConcurrentHashMap<>();
protected final MinecraftConnection connection;
protected final Map<UUID, VelocityTabListEntry> entries = new ConcurrentHashMap<>();
public VelocityTabList(MinecraftConnection connection) {
this.connection = connection;
@ -76,9 +77,9 @@ public class VelocityTabList implements TabList {
}
/**
* Clears all entries from the tab list. Note that the entries are written with
* {@link MinecraftConnection#delayedWrite(Object)}, so make sure to do an explicit
* {@link MinecraftConnection#flush()}.
* Clears all entries from the tab list. Note that the entries are written with {@link
* MinecraftConnection#delayedWrite(Object)}, so make sure to do an explicit {@link
* MinecraftConnection#flush()}.
*/
public void clearAll() {
List<PlayerListItem.Item> items = new ArrayList<>();
@ -86,8 +87,10 @@ public class VelocityTabList implements TabList {
items.add(PlayerListItem.Item.from(value));
}
entries.clear();
if (!items.isEmpty()) {
connection.delayedWrite(new PlayerListItem(PlayerListItem.REMOVE_PLAYER, items));
}
}
@Override
public Collection<TabListEntry> getEntries() {
@ -102,12 +105,14 @@ public class VelocityTabList implements TabList {
/**
* Processes a tab list entry packet from the backend.
*
* @param packet the packet to process
*/
public void processBackendPacket(PlayerListItem packet) {
// Packets are already forwarded on, so no need to do that here
for (PlayerListItem.Item item : packet.getItems()) {
UUID uuid = item.getUuid();
if (packet.getAction() != PlayerListItem.ADD_PLAYER && !entries.containsKey(uuid)) {
// Sometimes UPDATE_GAMEMODE is sent before ADD_PLAYER so don't want to warn here
continue;

20
proxy/src/main/java/com/velocitypowered/proxy/tablist/VelocityTabListEntryLegacy.java Normale Datei
Datei anzeigen

@ -0,0 +1,20 @@
package com.velocitypowered.proxy.tablist;
import com.velocitypowered.api.proxy.player.TabListEntry;
import com.velocitypowered.api.util.GameProfile;
import net.kyori.text.Component;
import org.checkerframework.checker.nullness.qual.Nullable;
public class VelocityTabListEntryLegacy extends VelocityTabListEntry {
VelocityTabListEntryLegacy(VelocityTabListLegacy tabList, GameProfile profile,
@Nullable Component displayName, int latency, int gameMode) {
super(tabList, profile, displayName, latency, gameMode);
}
@Override
public TabListEntry setDisplayName(@Nullable Component displayName) {
getTabList().removeEntry(getProfile().getId()); // We have to remove first if updating
return super.setDisplayName(displayName);
}
}

118
proxy/src/main/java/com/velocitypowered/proxy/tablist/VelocityTabListLegacy.java Normale Datei
Datei anzeigen

@ -0,0 +1,118 @@
package com.velocitypowered.proxy.tablist;
import com.google.common.collect.ImmutableList;
import com.velocitypowered.api.proxy.player.TabListEntry;
import com.velocitypowered.api.util.GameProfile;
import com.velocitypowered.proxy.connection.MinecraftConnection;
import com.velocitypowered.proxy.protocol.packet.PlayerListItem;
import com.velocitypowered.proxy.protocol.packet.PlayerListItem.Item;
import java.util.Collections;
import java.util.Map;
import java.util.Optional;
import java.util.UUID;
import java.util.concurrent.ConcurrentHashMap;
import net.kyori.text.Component;
import net.kyori.text.serializer.legacy.LegacyComponentSerializer;
import net.kyori.text.serializer.plain.PlainComponentSerializer;
import org.checkerframework.checker.nullness.qual.Nullable;
public class VelocityTabListLegacy extends VelocityTabList {
private final Map<String, UUID> nameMapping = new ConcurrentHashMap<>();
public VelocityTabListLegacy(MinecraftConnection connection) {
super(connection);
}
@Override
public void setHeaderAndFooter(Component header, Component footer) {
}
@Override
public void clearHeaderAndFooter() {
}
@Override
public void addEntry(TabListEntry entry) {
super.addEntry(entry);
nameMapping.put(entry.getProfile().getName(), entry.getProfile().getId());
}
@Override
public Optional<TabListEntry> removeEntry(UUID uuid) {
Optional<TabListEntry> entry = super.removeEntry(uuid);
entry.map(TabListEntry::getProfile).map(GameProfile::getName).ifPresent(nameMapping::remove);
return entry;
}
@Override
public void clearAll() {
for (TabListEntry value : entries.values()) {
connection.delayedWrite(new PlayerListItem(PlayerListItem.REMOVE_PLAYER,
Collections.singletonList(PlayerListItem.Item.from(value))));
}
entries.clear();
}
@Override
public void processBackendPacket(PlayerListItem packet) {
Item item = packet.getItems().get(0); // Only one item per packet in 1.7
Component displayName = LegacyComponentSerializer.legacy().deserialize(item.getName());
String strippedName = PlainComponentSerializer.INSTANCE.serialize(displayName);
switch (packet.getAction()) {
case PlayerListItem.ADD_PLAYER:
if (nameMapping.containsKey(strippedName)) { // ADD_PLAYER also used for updating ping
VelocityTabListEntry entry = entries.get(nameMapping.get(strippedName));
if (entry != null) {
entry.setLatency(item.getLatency());
}
} else {
UUID uuid = UUID.randomUUID(); // Use a fake uuid to preserve function of custom entries
nameMapping.put(strippedName, uuid);
entries.put(uuid, (VelocityTabListEntry) TabListEntry.builder()
.tabList(this)
.profile(new GameProfile(uuid, strippedName, ImmutableList.of()))
.displayName(displayName)
.latency(item.getLatency())
.build());
}
break;
case PlayerListItem.REMOVE_PLAYER:
UUID removedUuid = nameMapping.remove(strippedName);
if (removedUuid != null) {
entries.remove(removedUuid);
}
break;
default:
// For 1.7 there is only add and remove
break;
}
}
@Override
void updateEntry(int action, TabListEntry entry) {
if (entries.containsKey(entry.getProfile().getId())) {
switch (action) {
case PlayerListItem.UPDATE_LATENCY:
case PlayerListItem.UPDATE_DISPLAY_NAME: // Add here because we removed beforehand
connection
.write(new PlayerListItem(PlayerListItem.ADD_PLAYER, // ADD_PLAYER also updates ping
Collections.singletonList(PlayerListItem.Item.from(entry))));
break;
default:
// Can't do anything else
break;
}
}
}
@Override
public TabListEntry buildEntry(GameProfile profile, @Nullable Component displayName, int latency,
int gameMode) {
return new VelocityTabListEntryLegacy(this, profile, displayName, latency, gameMode);
}
}