Mirrors/ViaVersion
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Mirror von https://github.com/ViaVersion/ViaVersion.git synchronisiert 2024-11-03 14:50:30 +01:00
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BaseProtocol changes

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Dieser Commit ist enthalten in:
creeper123123321 2018-07-03 09:58:00 -03:00
Ursprung 2c62cc37e7
Commit f81892ea74
Es konnte kein GPG-Schlüssel zu dieser Signatur gefunden werden
GPG-Schlüssel-ID: 0AC57D54786721D1
5 geänderte Dateien mit 438 neuen und 179 gelöschten Zeilen
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6
common/src/main/java/us/myles/ViaVersion/api/protocol/ProtocolPipeline.java
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@ -54,11 +54,9 @@ public class ProtocolPipeline extends Protocol {
*/ */
public void add(Protocol protocol) { public void add(Protocol protocol) {
if (protocolList != null) { if (protocolList != null) {
protocolList.add(protocol); // Make BaseProtocol be in the last position, so the login packets can be modified by other protocols
protocolList.add(protocolList.size() - 1, protocol);
protocol.init(userConnection); protocol.init(userConnection);
// Move BaseProtocol to end, so the login packets can be modified by other protocols
protocolList.remove(ProtocolRegistry.BASE_PROTOCOL);
protocolList.add(ProtocolRegistry.BASE_PROTOCOL);
} else { } else {
throw new NullPointerException("Tried to add protocol to early"); throw new NullPointerException("Tried to add protocol to early");
} }

35
common/src/main/java/us/myles/ViaVersion/api/protocol/ProtocolRegistry.java
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@ -1,10 +1,13 @@
package us.myles.ViaVersion.api.protocol; package us.myles.ViaVersion.api.protocol;
import com.google.common.collect.Lists; import com.google.common.collect.Lists;
import com.google.common.collect.Range;
import com.google.common.collect.Sets; import com.google.common.collect.Sets;
import us.myles.ViaVersion.api.Pair; import us.myles.ViaVersion.api.Pair;
import us.myles.ViaVersion.api.Via; import us.myles.ViaVersion.api.Via;
import us.myles.ViaVersion.protocols.base.BaseProtocol; import us.myles.ViaVersion.protocols.base.BaseProtocol;
import us.myles.ViaVersion.protocols.base.BaseProtocol1_13;
import us.myles.ViaVersion.protocols.base.BaseProtocol1_7;
import us.myles.ViaVersion.protocols.protocol1_10to1_9_3.Protocol1_10To1_9_3_4; import us.myles.ViaVersion.protocols.protocol1_10to1_9_3.Protocol1_10To1_9_3_4;
import us.myles.ViaVersion.protocols.protocol1_11_1to1_11.Protocol1_11_1To1_11; import us.myles.ViaVersion.protocols.protocol1_11_1to1_11.Protocol1_11_1To1_11;
import us.myles.ViaVersion.protocols.protocol1_11to1_10.Protocol1_11To1_10; import us.myles.ViaVersion.protocols.protocol1_11to1_10.Protocol1_11To1_10;
@ -29,10 +32,14 @@ public class ProtocolRegistry {
private static final Map<Pair<Integer, Integer>, List<Pair<Integer, Protocol>>> pathCache = new ConcurrentHashMap<>(); private static final Map<Pair<Integer, Integer>, List<Pair<Integer, Protocol>>> pathCache = new ConcurrentHashMap<>();
private static final List<Protocol> registerList = Lists.newCopyOnWriteArrayList(); private static final List<Protocol> registerList = Lists.newCopyOnWriteArrayList();
private static final Set<Integer> supportedVersions = Sets.newConcurrentHashSet(); private static final Set<Integer> supportedVersions = Sets.newConcurrentHashSet();
private static final List<Pair<Range<Integer>, Protocol>> baseProtocols = Lists.newCopyOnWriteArrayList();
static { static {
// Base Protocol // Base Protocol
registerProtocol(BASE_PROTOCOL, Collections.<Integer>emptyList(), -1); registerBaseProtocol(BASE_PROTOCOL, Range.lessThan(Integer.MIN_VALUE));
registerBaseProtocol(new BaseProtocol1_7(), Range.lessThan(ProtocolVersion.v1_13.getId()));
registerBaseProtocol(new BaseProtocol1_13(), Range.atLeast(ProtocolVersion.v1_13.getId()));
// Register built in protocols // Register built in protocols
registerProtocol(new Protocol1_9TO1_8(), Collections.singletonList(ProtocolVersion.v1_9.getId()), ProtocolVersion.v1_8.getId()); registerProtocol(new Protocol1_9TO1_8(), Collections.singletonList(ProtocolVersion.v1_9.getId()), ProtocolVersion.v1_8.getId());
registerProtocol(new Protocol1_9_1TO1_9(), Arrays.asList(ProtocolVersion.v1_9_1.getId(), ProtocolVersion.v1_9_2.getId()), ProtocolVersion.v1_9.getId()); registerProtocol(new Protocol1_9_1TO1_9(), Arrays.asList(ProtocolVersion.v1_9_1.getId(), ProtocolVersion.v1_9_2.getId()), ProtocolVersion.v1_9.getId());
@ -82,6 +89,25 @@ public class ProtocolRegistry {
} }
} }
/**
* Registers a base protocol.
* Base Protocols registered later have higher priority
* Only one base protocol will be added to pipeline
*
* @param baseProtocol Base Protocol to register
* @param supportedProtocols Versions that baseProtocol supports
*/
public static void registerBaseProtocol(Protocol baseProtocol, Range<Integer> supportedProtocols) {
baseProtocols.add(new Pair<>(supportedProtocols, baseProtocol));
if (Via.getPlatform().isPluginEnabled()) {
baseProtocol.registerListeners();
baseProtocol.register(Via.getManager().getProviders());
refreshVersions();
} else {
registerList.add(baseProtocol);
}
}
public static void refreshVersions() { public static void refreshVersions() {
supportedVersions.clear(); supportedVersions.clear();
@ -197,4 +223,11 @@ public class ProtocolRegistry {
} }
return outputPath; return outputPath;
} }
public static Protocol getBaseProtocol(int serverVersion) {
for (Pair<Range<Integer>, Protocol> rangeProtocol : Lists.reverse(baseProtocols))
if (rangeProtocol.getKey().contains(serverVersion))
return rangeProtocol.getValue();
throw new IllegalStateException("No Base Protocol for " + serverVersion);
}
} }

178
common/src/main/java/us/myles/ViaVersion/protocols/base/BaseProtocol.java
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@ -1,13 +1,5 @@
package us.myles.ViaVersion.protocols.base; package us.myles.ViaVersion.protocols.base;
import com.google.common.base.Joiner;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonParseException;
import io.netty.channel.ChannelFuture;
import io.netty.util.concurrent.Future;
import io.netty.util.concurrent.GenericFutureListener;
import net.md_5.bungee.api.ChatColor;
import us.myles.ViaVersion.api.PacketWrapper; import us.myles.ViaVersion.api.PacketWrapper;
import us.myles.ViaVersion.api.Pair; import us.myles.ViaVersion.api.Pair;
import us.myles.ViaVersion.api.Via; import us.myles.ViaVersion.api.Via;
@ -21,137 +13,13 @@ import us.myles.ViaVersion.api.remapper.PacketRemapper;
import us.myles.ViaVersion.api.type.Type; import us.myles.ViaVersion.api.type.Type;
import us.myles.ViaVersion.packets.Direction; import us.myles.ViaVersion.packets.Direction;
import us.myles.ViaVersion.packets.State; import us.myles.ViaVersion.packets.State;
import us.myles.ViaVersion.protocols.protocol1_9to1_8.Protocol1_9TO1_8;
import us.myles.ViaVersion.util.GsonUtil;
import java.util.List; import java.util.List;
import java.util.UUID;
import java.util.logging.Level;
// TODO Make it work on 1.13 servers
public class BaseProtocol extends Protocol { public class BaseProtocol extends Protocol {
@Override @Override
protected void registerPackets() { protected void registerPackets() {
/* Outgoing Packets */
// Status Response Packet
registerOutgoing(State.STATUS, 0x00, 0x00, new PacketRemapper() { // Status Response Packet
@Override
public void registerMap() {
map(Type.STRING);
handler(new PacketHandler() {
@Override
public void handle(PacketWrapper wrapper) throws Exception {
ProtocolInfo info = wrapper.user().get(ProtocolInfo.class);
String originalStatus = wrapper.get(Type.STRING, 0);
try {
JsonElement json = GsonUtil.getGson().fromJson(originalStatus, JsonElement.class);
JsonObject version;
int protocolVersion = 0; // Unknown!
if (json.isJsonObject()) {
if (json.getAsJsonObject().has("version")) {
version = json.getAsJsonObject().get("version").getAsJsonObject();
if (version.has("protocol")) {
protocolVersion = ((Long) version.get("protocol").getAsLong()).intValue();
}
} else {
version = new JsonObject();
json.getAsJsonObject().add("version", version);
}
} else {
// Format properly
json = new JsonObject();
version = new JsonObject();
json.getAsJsonObject().add("version", version);
}
if (Via.getConfig().isSendSupportedVersions()) //Send supported versions
version.add("supportedVersions", GsonUtil.getGson().toJsonTree(Via.getAPI().getSupportedVersions()));
if (ProtocolRegistry.SERVER_PROTOCOL == -1) // Set the Server protocol if the detection on startup failed
ProtocolRegistry.SERVER_PROTOCOL = protocolVersion;
// Ensure the server has a version provider
if (Via.getManager().getProviders().get(VersionProvider.class) == null) {
wrapper.user().setActive(false);
return;
}
int protocol = Via.getManager().getProviders().get(VersionProvider.class).getServerProtocol(wrapper.user());
List<Pair<Integer, Protocol>> protocols = null;
// Only allow newer clients or (1.9.2 on 1.9.4 server if the server supports it)
if (info.getProtocolVersion() >= protocol || Via.getPlatform().isOldClientsAllowed()) {
protocols = ProtocolRegistry.getProtocolPath(info.getProtocolVersion(), protocol);
}
if (protocols != null) {
if (protocolVersion != 9999) {
//Fix ServerListPlus
version.addProperty("protocol", info.getProtocolVersion());
}
} else {
// not compatible :(, *plays very sad violin*
wrapper.user().setActive(false);
}
if (Via.getConfig().getBlockedProtocols().contains(info.getProtocolVersion()))
version.addProperty("protocol", -1); // Show blocked versions as outdated
wrapper.set(Type.STRING, 0, GsonUtil.getGson().toJson(json)); // Update value
} catch (JsonParseException e) {
e.printStackTrace();
}
}
});
}
});
registerOutgoing(State.STATUS, 0x01, 0x01); // Status Pong Packet
registerOutgoing(State.LOGIN, 0x00, 0x00); // Login Disconnect Packet
registerOutgoing(State.LOGIN, 0x01, 0x01); // Encryption Request Packet
// Login Success Packet
registerOutgoing(State.LOGIN, 0x02, 0x02, new PacketRemapper() {
@Override
public void registerMap() {
map(Type.STRING); // 0 - UUID as String
map(Type.STRING); // 1 - Player Username
handler(new PacketHandler() {
@Override
public void handle(PacketWrapper wrapper) throws Exception {
ProtocolInfo info = wrapper.user().get(ProtocolInfo.class);
info.setState(State.PLAY);
// Save other info
String stringUUID = wrapper.get(Type.STRING, 0);
if (stringUUID.length() == 32) { // Trimmed UUIDs are 32 characters
// Trimmed
stringUUID = addDashes(stringUUID);
}
UUID uuid = UUID.fromString(stringUUID);
info.setUuid(uuid);
info.setUsername(wrapper.get(Type.STRING, 1));
// Add to ported clients
Via.getManager().addPortedClient(wrapper.user());
if (info.getPipeline().pipes().size() == 1 && info.getPipeline().pipes().get(0).getClass() == BaseProtocol.class) // Only base protocol
wrapper.user().setActive(false);
if (Via.getManager().isDebug()) {
// Print out the route to console
Via.getPlatform().getLogger().log(Level.INFO, "{0} logged in with protocol {1}, Route: {2}",
new Object[]{
wrapper.get(Type.STRING, 1),
info.getProtocolVersion(),
Joiner.on(", ").join(info.getPipeline().pipes(), ", ")
});
}
}
});
}
});
registerOutgoing(State.LOGIN, 0x03, 0x03); // Login Set Compression Packet
/* Incoming Packets */ /* Incoming Packets */
// Handshake Packet // Handshake Packet
@ -194,6 +62,9 @@ public class BaseProtocol extends Protocol {
wrapper.set(Type.VAR_INT, 0, protocol); wrapper.set(Type.VAR_INT, 0, protocol);
} }
// Add Base Protocol
pipeline.add(ProtocolRegistry.getBaseProtocol(protocol));
// Change state // Change state
if (state == 1) { if (state == 1) {
info.setState(State.STATUS); info.setState(State.STATUS);
@ -205,38 +76,6 @@ public class BaseProtocol extends Protocol {
}); });
} }
}); });
registerIncoming(State.STATUS, 0x00, 0x00); // Status Request Packet
registerIncoming(State.STATUS, 0x01, 0x01); // Status Ping Packet
// Login Start Packet
registerIncoming(State.LOGIN, 0x00, 0x00, new PacketRemapper() {
@Override
public void registerMap() {
handler(new PacketHandler() {
@Override
public void handle(final PacketWrapper wrapper) throws Exception {
int protocol = wrapper.user().get(ProtocolInfo.class).getProtocolVersion();
if (Via.getConfig().getBlockedProtocols().contains(protocol)) {
if (!wrapper.user().getChannel().isOpen()) return;
PacketWrapper disconnectPacket = new PacketWrapper(0x00, null, wrapper.user()); // Disconnect Packet
Protocol1_9TO1_8.FIX_JSON.write(disconnectPacket, ChatColor.translateAlternateColorCodes('&', Via.getConfig().getBlockedDisconnectMsg()));
wrapper.cancel(); // cancel current
// Send and close
ChannelFuture future = disconnectPacket.sendFuture(BaseProtocol.class);
future.addListener(new GenericFutureListener<Future<? super Void>>() {
@Override
public void operationComplete(Future<? super Void> future) throws Exception {
wrapper.user().getChannel().close();
}
});
}
}
});
}
}); // Login Start Packet
registerIncoming(State.LOGIN, 0x01, 0x01); // Encryption Response Packet
} }
@Override @Override
@ -254,18 +93,9 @@ public class BaseProtocol extends Protocol {
super.transform(direction, state, packetWrapper); super.transform(direction, state, packetWrapper);
if (direction == Direction.INCOMING && state == State.HANDSHAKE) { if (direction == Direction.INCOMING && state == State.HANDSHAKE) {
// Disable if it isn't a handshake packet. // Disable if it isn't a handshake packet.
if (packetWrapper.getId() > 0) { if (packetWrapper.getId() != 0) {
packetWrapper.user().setActive(false); packetWrapper.user().setActive(false);
} }
} }
} }
public static String addDashes(String trimmedUUID) {
StringBuilder idBuff = new StringBuilder(trimmedUUID);
idBuff.insert(20, '-');
idBuff.insert(16, '-');
idBuff.insert(12, '-');
idBuff.insert(8, '-');
return idBuff.toString();
}
} }

195
common/src/main/java/us/myles/ViaVersion/protocols/base/BaseProtocol1_13.java Normale Datei
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@ -0,0 +1,195 @@
package us.myles.ViaVersion.protocols.base;
import com.google.common.base.Joiner;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonParseException;
import io.netty.channel.ChannelFuture;
import io.netty.util.concurrent.Future;
import io.netty.util.concurrent.GenericFutureListener;
import net.md_5.bungee.api.ChatColor;
import us.myles.ViaVersion.api.PacketWrapper;
import us.myles.ViaVersion.api.Pair;
import us.myles.ViaVersion.api.Via;
import us.myles.ViaVersion.api.data.UserConnection;
import us.myles.ViaVersion.api.protocol.Protocol;
import us.myles.ViaVersion.api.protocol.ProtocolRegistry;
import us.myles.ViaVersion.api.remapper.PacketHandler;
import us.myles.ViaVersion.api.remapper.PacketRemapper;
import us.myles.ViaVersion.api.type.Type;
import us.myles.ViaVersion.packets.State;
import us.myles.ViaVersion.protocols.protocol1_9to1_8.Protocol1_9TO1_8;
import us.myles.ViaVersion.util.GsonUtil;
import java.util.List;
import java.util.UUID;
import java.util.logging.Level;
public class BaseProtocol1_13 extends Protocol {
@Override
protected void registerPackets() {
/* Outgoing Packets */
// Status Response Packet
registerOutgoing(State.STATUS, 0x00, 0x00, new PacketRemapper() { // Status Response Packet
@Override
public void registerMap() {
map(Type.STRING);
handler(new PacketHandler() {
@Override
public void handle(PacketWrapper wrapper) throws Exception {
ProtocolInfo info = wrapper.user().get(ProtocolInfo.class);
String originalStatus = wrapper.get(Type.STRING, 0);
try {
JsonElement json = GsonUtil.getGson().fromJson(originalStatus, JsonElement.class);
JsonObject version;
int protocolVersion = 0; // Unknown!
if (json.isJsonObject()) {
if (json.getAsJsonObject().has("version")) {
version = json.getAsJsonObject().get("version").getAsJsonObject();
if (version.has("protocol")) {
protocolVersion = ((Long) version.get("protocol").getAsLong()).intValue();
}
} else {
version = new JsonObject();
json.getAsJsonObject().add("version", version);
}
} else {
// Format properly
json = new JsonObject();
version = new JsonObject();
json.getAsJsonObject().add("version", version);
}
if (Via.getConfig().isSendSupportedVersions()) //Send supported versions
version.add("supportedVersions", GsonUtil.getGson().toJsonTree(Via.getAPI().getSupportedVersions()));
if (ProtocolRegistry.SERVER_PROTOCOL == -1) // Set the Server protocol if the detection on startup failed
ProtocolRegistry.SERVER_PROTOCOL = protocolVersion;
// Ensure the server has a version provider
if (Via.getManager().getProviders().get(VersionProvider.class) == null) {
wrapper.user().setActive(false);
return;
}
int protocol = Via.getManager().getProviders().get(VersionProvider.class).getServerProtocol(wrapper.user());
List<Pair<Integer, Protocol>> protocols = null;
// Only allow newer clients or (1.9.2 on 1.9.4 server if the server supports it)
if (info.getProtocolVersion() >= protocol || Via.getPlatform().isOldClientsAllowed()) {
protocols = ProtocolRegistry.getProtocolPath(info.getProtocolVersion(), protocol);
}
if (protocols != null) {
if (protocolVersion != 9999) {
//Fix ServerListPlus
version.addProperty("protocol", info.getProtocolVersion());
}
} else {
// not compatible :(, *plays very sad violin*
wrapper.user().setActive(false);
}
if (Via.getConfig().getBlockedProtocols().contains(info.getProtocolVersion()))
version.addProperty("protocol", -1); // Show blocked versions as outdated
wrapper.set(Type.STRING, 0, GsonUtil.getGson().toJson(json)); // Update value
} catch (JsonParseException e) {
e.printStackTrace();
}
}
});
}
});
registerOutgoing(State.STATUS, 0x01, 0x01); // Status Pong Packet
registerOutgoing(State.LOGIN, 0x00, 0x00); // Login Plugin Message
registerOutgoing(State.LOGIN, 0x01, 0x01); // Login Disconnect Packet
registerOutgoing(State.LOGIN, 0x02, 0x02); // Encryption Request Packet
// Login Success Packet
registerOutgoing(State.LOGIN, 0x03, 0x03, new PacketRemapper() {
@Override
public void registerMap() {
map(Type.STRING); // 0 - UUID as String
map(Type.STRING); // 1 - Player Username
handler(new PacketHandler() {
@Override
public void handle(PacketWrapper wrapper) throws Exception {
ProtocolInfo info = wrapper.user().get(ProtocolInfo.class);
info.setState(State.PLAY);
// Save other info
String stringUUID = wrapper.get(Type.STRING, 0);
/*if (stringUUID.length() == 32) { // Trimmed UUIDs are 32 characters
// Trimmed
stringUUID = addDashes(stringUUID);
}*/
UUID uuid = UUID.fromString(stringUUID);
info.setUuid(uuid);
info.setUsername(wrapper.get(Type.STRING, 1));
// Add to ported clients
Via.getManager().addPortedClient(wrapper.user());
if (info.getPipeline().pipes().size() == 2
&& info.getPipeline().pipes().get(0).getClass() == BaseProtocol1_13.class
&& info.getPipeline().pipes().get(1).getClass() == BaseProtocol.class) // Only base protocol
wrapper.user().setActive(false);
if (Via.getManager().isDebug()) {
// Print out the route to console
Via.getPlatform().getLogger().log(Level.INFO, "{0} logged in with protocol {1}, Route: {2}",
new Object[]{
wrapper.get(Type.STRING, 1),
info.getProtocolVersion(),
Joiner.on(", ").join(info.getPipeline().pipes(), ", ")
});
}
}
});
}
});
registerOutgoing(State.LOGIN, 0x04, 0x04); // Login Set Compression Packet
/* Incoming Packets */
registerIncoming(State.STATUS, 0x00, 0x00); // Status Request Packet
registerIncoming(State.STATUS, 0x01, 0x01); // Status Ping Packet
registerIncoming(State.LOGIN, 0x00, 0x00); // Login Plugin Message
// Login Start Packet
registerIncoming(State.LOGIN, 0x01, 0x01, new PacketRemapper() {
@Override
public void registerMap() {
handler(new PacketHandler() {
@Override
public void handle(final PacketWrapper wrapper) throws Exception {
int protocol = wrapper.user().get(ProtocolInfo.class).getProtocolVersion();
if (Via.getConfig().getBlockedProtocols().contains(protocol)) {
if (!wrapper.user().getChannel().isOpen()) return;
PacketWrapper disconnectPacket = new PacketWrapper(0x00, null, wrapper.user()); // Disconnect Packet
Protocol1_9TO1_8.FIX_JSON.write(disconnectPacket, ChatColor.translateAlternateColorCodes('&', Via.getConfig().getBlockedDisconnectMsg()));
wrapper.cancel(); // cancel current
// Send and close
ChannelFuture future = disconnectPacket.sendFuture(BaseProtocol.class);
future.addListener(new GenericFutureListener<Future<? super Void>>() {
@Override
public void operationComplete(Future<? super Void> future) throws Exception {
wrapper.user().getChannel().close();
}
});
}
}
});
}
}); // Login Start Packet
registerIncoming(State.LOGIN, 0x02, 0x02); // Encryption Response Packet
}
@Override
public void init(UserConnection userConnection) {
}
}

203
common/src/main/java/us/myles/ViaVersion/protocols/base/BaseProtocol1_7.java Normale Datei
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@ -0,0 +1,203 @@
package us.myles.ViaVersion.protocols.base;
import com.google.common.base.Joiner;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonParseException;
import io.netty.channel.ChannelFuture;
import io.netty.util.concurrent.Future;
import io.netty.util.concurrent.GenericFutureListener;
import net.md_5.bungee.api.ChatColor;
import us.myles.ViaVersion.api.PacketWrapper;
import us.myles.ViaVersion.api.Pair;
import us.myles.ViaVersion.api.Via;
import us.myles.ViaVersion.api.data.UserConnection;
import us.myles.ViaVersion.api.protocol.Protocol;
import us.myles.ViaVersion.api.protocol.ProtocolRegistry;
import us.myles.ViaVersion.api.remapper.PacketHandler;
import us.myles.ViaVersion.api.remapper.PacketRemapper;
import us.myles.ViaVersion.api.type.Type;
import us.myles.ViaVersion.packets.State;
import us.myles.ViaVersion.protocols.protocol1_9to1_8.Protocol1_9TO1_8;
import us.myles.ViaVersion.util.GsonUtil;
import java.util.List;
import java.util.UUID;
import java.util.logging.Level;
public class BaseProtocol1_7 extends Protocol {
@Override
protected void registerPackets() {
/* Outgoing Packets */
// Status Response Packet
registerOutgoing(State.STATUS, 0x00, 0x00, new PacketRemapper() { // Status Response Packet
@Override
public void registerMap() {
map(Type.STRING);
handler(new PacketHandler() {
@Override
public void handle(PacketWrapper wrapper) throws Exception {
ProtocolInfo info = wrapper.user().get(ProtocolInfo.class);
String originalStatus = wrapper.get(Type.STRING, 0);
try {
JsonElement json = GsonUtil.getGson().fromJson(originalStatus, JsonElement.class);
JsonObject version;
int protocolVersion = 0; // Unknown!
if (json.isJsonObject()) {
if (json.getAsJsonObject().has("version")) {
version = json.getAsJsonObject().get("version").getAsJsonObject();
if (version.has("protocol")) {
protocolVersion = ((Long) version.get("protocol").getAsLong()).intValue();
}
} else {
version = new JsonObject();
json.getAsJsonObject().add("version", version);
}
} else {
// Format properly
json = new JsonObject();
version = new JsonObject();
json.getAsJsonObject().add("version", version);
}
if (Via.getConfig().isSendSupportedVersions()) //Send supported versions
version.add("supportedVersions", GsonUtil.getGson().toJsonTree(Via.getAPI().getSupportedVersions()));
if (ProtocolRegistry.SERVER_PROTOCOL == -1) // Set the Server protocol if the detection on startup failed
ProtocolRegistry.SERVER_PROTOCOL = protocolVersion;
// Ensure the server has a version provider
if (Via.getManager().getProviders().get(VersionProvider.class) == null) {
wrapper.user().setActive(false);
return;
}
int protocol = Via.getManager().getProviders().get(VersionProvider.class).getServerProtocol(wrapper.user());
List<Pair<Integer, Protocol>> protocols = null;
// Only allow newer clients or (1.9.2 on 1.9.4 server if the server supports it)
if (info.getProtocolVersion() >= protocol || Via.getPlatform().isOldClientsAllowed()) {
protocols = ProtocolRegistry.getProtocolPath(info.getProtocolVersion(), protocol);
}
if (protocols != null) {
if (protocolVersion != 9999) {
//Fix ServerListPlus
version.addProperty("protocol", info.getProtocolVersion());
}
} else {
// not compatible :(, *plays very sad violin*
wrapper.user().setActive(false);
}
if (Via.getConfig().getBlockedProtocols().contains(info.getProtocolVersion()))
version.addProperty("protocol", -1); // Show blocked versions as outdated
wrapper.set(Type.STRING, 0, GsonUtil.getGson().toJson(json)); // Update value
} catch (JsonParseException e) {
e.printStackTrace();
}
}
});
}
});
registerOutgoing(State.STATUS, 0x01, 0x01); // Status Pong Packet
registerOutgoing(State.LOGIN, 0x00, 0x00); // Login Disconnect Packet
registerOutgoing(State.LOGIN, 0x01, 0x01); // Encryption Request Packet
// Login Success Packet
registerOutgoing(State.LOGIN, 0x02, 0x02, new PacketRemapper() {
@Override
public void registerMap() {
map(Type.STRING); // 0 - UUID as String
map(Type.STRING); // 1 - Player Username
handler(new PacketHandler() {
@Override
public void handle(PacketWrapper wrapper) throws Exception {
ProtocolInfo info = wrapper.user().get(ProtocolInfo.class);
info.setState(State.PLAY);
// Save other info
String stringUUID = wrapper.get(Type.STRING, 0);
if (stringUUID.length() == 32) { // Trimmed UUIDs are 32 characters
// Trimmed
stringUUID = addDashes(stringUUID);
}
UUID uuid = UUID.fromString(stringUUID);
info.setUuid(uuid);
info.setUsername(wrapper.get(Type.STRING, 1));
// Add to ported clients
Via.getManager().addPortedClient(wrapper.user());
if (info.getPipeline().pipes().size() == 2
&& info.getPipeline().pipes().get(0).getClass() == BaseProtocol1_7.class
&& info.getPipeline().pipes().get(1).getClass() == BaseProtocol.class) // Only base protocol
wrapper.user().setActive(false);
if (Via.getManager().isDebug()) {
// Print out the route to console
Via.getPlatform().getLogger().log(Level.INFO, "{0} logged in with protocol {1}, Route: {2}",
new Object[]{
wrapper.get(Type.STRING, 1),
info.getProtocolVersion(),
Joiner.on(", ").join(info.getPipeline().pipes(), ", ")
});
}
}
});
}
});
registerOutgoing(State.LOGIN, 0x03, 0x03); // Login Set Compression Packet
/* Incoming Packets */
registerIncoming(State.STATUS, 0x00, 0x00); // Status Request Packet
registerIncoming(State.STATUS, 0x01, 0x01); // Status Ping Packet
// Login Start Packet
registerIncoming(State.LOGIN, 0x00, 0x00, new PacketRemapper() {
@Override
public void registerMap() {
handler(new PacketHandler() {
@Override
public void handle(final PacketWrapper wrapper) throws Exception {
int protocol = wrapper.user().get(ProtocolInfo.class).getProtocolVersion();
if (Via.getConfig().getBlockedProtocols().contains(protocol)) {
if (!wrapper.user().getChannel().isOpen()) return;
PacketWrapper disconnectPacket = new PacketWrapper(0x00, null, wrapper.user()); // Disconnect Packet
Protocol1_9TO1_8.FIX_JSON.write(disconnectPacket, ChatColor.translateAlternateColorCodes('&', Via.getConfig().getBlockedDisconnectMsg()));
wrapper.cancel(); // cancel current
// Send and close
ChannelFuture future = disconnectPacket.sendFuture(BaseProtocol.class);
future.addListener(new GenericFutureListener<Future<? super Void>>() {
@Override
public void operationComplete(Future<? super Void> future) throws Exception {
wrapper.user().getChannel().close();
}
});
}
}
});
}
}); // Login Start Packet
registerIncoming(State.LOGIN, 0x01, 0x01); // Encryption Response Packet
}
@Override
public void init(UserConnection userConnection) {
}
public static String addDashes(String trimmedUUID) {
StringBuilder idBuff = new StringBuilder(trimmedUUID);
idBuff.insert(20, '-');
idBuff.insert(16, '-');
idBuff.insert(12, '-');
idBuff.insert(8, '-');
return idBuff.toString();
}
}