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20 Commits
Author SHA1 Message Date
purplexdev f52a05b477 1.3.6.2
* NettyPacketHandler.handlerName value set from "PacketListener" to "packet_handler" fixing all issues!
2020-06-25 22:54:30 +02:00
purplexdev 8936204849 1.3.6.1 2020-06-25 22:38:32 +02:00
purplexdev 50efff2819 Updated to 1.3.6
* Forgot to uninject on quit
2020-06-25 22:09:16 +02:00
purplexdev af325f9a62 Forgot to uninject onquit! 2020-06-25 22:08:41 +02:00
purplexdev fe29188e3f 1.3.5.2 Release, Bug fixed with position class & position look class and look class loading too late making them null! 2020-06-25 17:40:36 +02:00
purplexdev b753a98971 Issue with netty, receive and send event were mixed 2020-06-25 17:37:05 +02:00
purplexdev c73d88a7e2 Merge remote-tracking branch 'origin/master' 2020-06-25 15:13:32 +02:00
purplexdev bd872bc271 1.3.5.1
* Marked ProtocolSupport & ViaVersion as "provided" so they are not compiled into your plugin!
2020-06-25 15:13:03 +02:00
retrooper c0c03a0629 updated readme credit to release 1.3.5 2020-06-25 13:35:53 +02:00
purplexdev 18f3f135c8 Merge remote-tracking branch 'origin/master' 2020-06-25 13:16:04 +02:00
purplexdev 0304d0ac5a 1.3.5 Release STABLE!
* TinyProtocol removed
* API Size way smaller
* PlayerUninjectEvent is now called
* Version lookup methods re-added, but version lookup is only possible with ProtocolSupport or ViaVersion plugin avaialable on the server.
If you try looking up version and none of the listed plugins could be found, you will result with ClientVersion.ACCESS_FAILURE

* WrappedPacketOutAbilities sendable wrapper added
* PostPlayerInjectEvent has been deprecated, please use PlayerInjectEvent
* PlayerUninjectEvent now cancellable
* PlayerInjectEvent or PlayerUninjectEvent cancelling, will cancel the action.
* pom.xml version updated to 1.3.5
* Packet class has been deprecated, please use PacketType instead!
* Packet.isInstanceOfFlyingPacket(nmsPacket) -> PacketType.Util.isInstanceOfFlyingPacket(nmsPacket), and more instanceof functions are added in the PacketType.Util class too!
* PacketReceiveEvent#getPacket() is deprecated, please use PacketReceiveEvent#getNMSPacket()
* PacketSendEvent#getPacket() is deprecated, please use PacketSendEvent#getNMSPacket()
* PacketEvents.setShouldKickOnRestart(boolean) removed
2020-06-25 13:15:34 +02:00
retrooper 643fa1ad18 updated credits to fit latest commit 2020-06-22 22:43:50 +02:00
retrooper 5c65874749 remove plugin.yml 2020-06-22 22:36:27 +02:00
purplexdev 5a4db46427 1.3.4.1 UNTESTED!
Completely removed TinyProtocol, please test it, I will be able to fix any bugs tomorrow!
2020-06-22 22:31:14 +02:00
purplexdev 305d376128 1.3.4 RELEASE, This is probably one of my most important releases, this is the last release using TinyProtocol!
Changelog:
* Clientbound Abilities wrapper added and is sendable to clients

* Clientbound Health update wrapper added and is also sendable to clients

Info:
TinyProtocol helped us listen to some login and handshake packets!
But it also came with a lot of bugs and problems to deal with, even today there are still some bugs and many people using this API have complained about it.

I will now stop using TinyProtocol.

WHAT WILL THIS MEAN?

There will be lots of pro's and con's.

Pros:
* No more issues with reloading
* Smaller file size

Cons:
* Version lookup will now only be possible with dependencies like ViaVersion.
* Soft depend on via version as mentioned above. Soft depend meaning that if you want to lookup versions, ViaVersion api is required to be provided.

* All login wrappers and the login event will be removed!

It is very important that PacketEvents is stable and people shouldn't be constantly running into issues!
I am releasing this version with TinyProtocol for the users that will miss and still want TinyProtocol.
2020-06-22 21:07:34 +02:00
purplexdev 4308936c1a * Bukkit move event added
* In and Out going transaction packet wrapper added (request of Hades developer)
2020-06-22 19:27:12 +02:00
purplexdev 87b0ac9295 * Updated the default value of PacketEvent#timestamp to the non deprecated method PacketEvents#highlyPreciseMillis() 2020-06-21 17:18:32 +02:00
purplexdev 3dee3b2a0e Bug fixes!
* Blockplace_1_9 wrapper error fixed
* Blockplace 1_7 wrapper is now being used
* PacketEvents#currentCalculatedMS() now deprecated, please use PacketEvents#highlyPreciseMillis() or System#currentTimeMillis() depending on what you need, please read the documentation of PacketEvents#highlyPreciseMillis().
2020-06-21 16:48:41 +02:00
purplexdev c2f0e30511 Updated pom.xml version to 1.3.3.1 2020-06-18 16:19:12 +02:00
purplexdev a824a70cc6 Lots of code cleaned up, appended some code to the MainExample.java, added an option to kick all online players when the PacketEvents.stop() function is called( JavaPlugin#onDisable() ) 2020-06-18 15:44:53 +02:00
68 changed files with 1711 additions and 2544 deletions

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+6 -4
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@@ -2,13 +2,15 @@
A lightweight spigot packetlistener & packetsender coded by retrooper.
## Credit:
## Credit
PacketEvents uses a modified version of [TinyProtocol](http://github.com/dmulloy2/ProtocolLib/blob/master/TinyProtocol/src/main/java/com/comphenix/tinyprotocol/TinyProtocol.java) by [@DeprecatedLuke](https://github.com/DeprecatedLuke) to support 1.7.10 & 1.8.
I modified DeprecatedLuke's version of TinyProtocol and added support for 1.9+ versions.
PacketEvents uses [TinyProtocol](https://github.com/dmulloy2/ProtocolLib/blob/master/TinyProtocol)'s [Reflection](https://github.com/dmulloy2/ProtocolLib/blob/master/TinyProtocol/src/main/java/com/comphenix/tinyprotocol/Reflection.java) util class.
PacketEvents also took Atlas' Packet class.(all the packet names)
[Find it here in our source](https://github.com/retrooper/packetevents/blob/master/src/main/java/io/github/retrooper/packetevents/reflectionutils/Reflection.java)
PacketEvents forked [Atlas](https://github.com/funkemunky/Atlas)' [Packet](https://github.com/funkemunky/Atlas/blob/master/AtlasParent/Atlas/src/main/java/cc/funkemunky/api/tinyprotocol/api/Packet.java) class.
[Find our forked version](https://github.com/retrooper/packetevents/blob/master/src/main/java/io/github/retrooper/packetevents/packet/PacketType.java)
## About
This packetlistener is **only** supported on spigot servers and has been tested to work on these spigot forks: PaperSpigot, Tuinity
+12 -103
View File
@@ -6,7 +6,7 @@
<groupId>io.github.retrooper</groupId>
<artifactId>packetevents</artifactId>
<version>1.3.3</version>
<version>1.3.6.2</version>
<packaging>jar</packaging>
<name>packetevents</name>
<properties>
@@ -56,70 +56,20 @@
<id>funkemunky-releases</id>
<url>https://nexus.funkemunky.cc/content/repositories/releases/</url>
</repository>
<repository>
<id>viaversion-repo</id>
<url>https://repo.viaversion.com</url>
</repository>
</repositories>
<dependencies>
<dependency>
<groupId>org.github.spigot</groupId>
<artifactId>1.14.1</artifactId>
<version>1.14.1</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.github.spigot</groupId>
<artifactId>1.15.1</artifactId>
<version>1.15.1</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.github.spigot</groupId>
<artifactId>1.14.3</artifactId>
<version>1.14.3</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.github.spigot</groupId>
<artifactId>1.14.2</artifactId>
<version>1.14.2</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.github.spigot</groupId>
<artifactId>1.15</artifactId>
<version>1.15</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.github.spigot</groupId>
<artifactId>1.15.2</artifactId>
<version>1.15.2</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.github.spigot</groupId>
<artifactId>1.13.2</artifactId>
<version>1.13.2</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.github.spigot</groupId>
<artifactId>1.7.10</artifactId>
<version>1.7.10</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.github.spigot</groupId>
<artifactId>1.8</artifactId>
<version>1.8</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.github.spigot</groupId>
<artifactId>1.8.3</artifactId>
<version>1.8.3</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.github.spigot</groupId>
<artifactId>1.8.8</artifactId>
@@ -127,57 +77,16 @@
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.github.spigot</groupId>
<artifactId>1.9</artifactId>
<version>1.9</version>
<groupId>us.myles</groupId>
<artifactId>viaversion</artifactId>
<version>3.0.1</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.github.spigot</groupId>
<artifactId>1.9.4</artifactId>
<version>1.9.4</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.github.spigot</groupId>
<artifactId>1.10.2</artifactId>
<version>1.10.2</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.github.spigot</groupId>
<artifactId>1.11.1</artifactId>
<version>1.11.1</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.github.spigot</groupId>
<artifactId>1.11.2</artifactId>
<version>1.11.2</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.github.spigot</groupId>
<artifactId>1.12.1</artifactId>
<version>1.12.1</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.github.spigot</groupId>
<artifactId>1.12.2</artifactId>
<version>1.12.2</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.github.spigot</groupId>
<artifactId>1.13</artifactId>
<version>1.13</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.github.spigot</groupId>
<artifactId>1.14</artifactId>
<version>1.14</version>
<groupId>com.github.ProtocolSupport</groupId>
<artifactId>ProtocolSupport</artifactId>
<version>4fdd683</version>
<scope>provided</scope>
</dependency>
</dependencies>
@@ -1,48 +1,40 @@
package io.github.retrooper.packetevents;
import io.github.retrooper.packetevents.annotations.NotNull;
import io.github.retrooper.packetevents.annotations.Nullable;
import io.github.retrooper.packetevents.annotations.PacketHandler;
import io.github.retrooper.packetevents.enums.ClientVersion;
import io.github.retrooper.packetevents.enums.ServerVersion;
import io.github.retrooper.packetevents.event.PacketEvent;
import io.github.retrooper.packetevents.event.PacketListener;
import io.github.retrooper.packetevents.event.impl.*;
import io.github.retrooper.packetevents.event.manager.EventManager;
import io.github.retrooper.packetevents.handler.TinyProtocolHandler;
import io.github.retrooper.packetevents.packet.Packet;
import io.github.retrooper.packetevents.handler.NettyPacketHandler;
import io.github.retrooper.packetevents.packetwrappers.Sendable;
import io.github.retrooper.packetevents.packetwrappers.login.WrappedPacketLoginHandshake;
import io.github.retrooper.packetevents.utils.NMSUtils;
import org.bukkit.Bukkit;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.player.PlayerJoinEvent;
import org.bukkit.event.player.PlayerMoveEvent;
import org.bukkit.event.player.PlayerQuitEvent;
import org.bukkit.plugin.Plugin;
import org.bukkit.scheduler.BukkitTask;
import java.lang.reflect.InvocationTargetException;
import java.util.HashMap;
import java.util.UUID;
public final class PacketEvents implements PacketListener, Listener {
/*
* Wrappers TODO:
* Spawn entity
*/
private static boolean hasRegistered;
private static final ServerVersion version = ServerVersion.getVersion();
private static PacketEvents instance;
private static final EventManager eventManager = new EventManager();
private static boolean hasRegistered;
private static PacketEvents instance;
private static int currentTick;
private static BukkitTask serverTickTask;
private static final HashMap<Object, ClientVersion> clientVersionLookup = new HashMap<Object, ClientVersion>();
private static final HashMap<UUID, ClientVersion> clientVersionsMap = new HashMap<UUID, ClientVersion>();
public static EventManager getEventManager() {
return eventManager;
@@ -60,14 +52,12 @@ public final class PacketEvents implements PacketListener, Listener {
getEventManager().registerListener(getInstance());
Bukkit.getPluginManager().registerEvents(getInstance(), plugin);
//Initialize the TinyProtocolHandler
TinyProtocolHandler.initTinyProtocol(plugin);
//Start the server tick task
final Runnable tickRunnable = new Runnable() {
@Override
public void run() {
getEventManager().callEvent(new ServerTickEvent(currentTick++, PacketEvents.currentCalculatedMS()));
getEventManager().callEvent(new ServerTickEvent(currentTick++, PacketEvents.highlyPreciseMillis()));
}
};
serverTickTask = Bukkit.getScheduler().runTaskTimerAsynchronously(plugin, tickRunnable, 0L, 1L);
@@ -76,7 +66,7 @@ public final class PacketEvents implements PacketListener, Listener {
}
/**
* Stop all tasks and unregisters all packetevent listeners
* Stop all tasks and unregisters all PacketEvents' listeners
*/
public static void stop() {
if (serverTickTask != null) {
@@ -119,7 +109,7 @@ public final class PacketEvents implements PacketListener, Listener {
/**
* Get the server's recent TPS values
* TPS stands for ticks per second.
* Learn more about ticks <a href="https://apexminecrafthosting.com/what-is-minecraft-tps/">"https://apexminecrafthosting.com/what-is-minecraft-tps/"</a>
* See to learn more about TPS<a href="https://apexminecrafthosting.com/what-is-minecraft-tps/">"https://apexminecrafthosting.com/what-is-minecraft-tps/"</a>
*
* @return recentTPS[]
*/
@@ -136,9 +126,9 @@ public final class PacketEvents implements PacketListener, Listener {
/**
* Get the server's current TPS
* TPS stands for ticks per second.
* Learn more about ticks <a href="https://apexminecrafthosting.com/what-is-minecraft-tps/">"https://apexminecrafthosting.com/what-is-minecraft-tps/"</a>
* See to learn more about TPS <a href="https://apexminecrafthosting.com/what-is-minecraft-tps/">"https://apexminecrafthosting.com/what-is-minecraft-tps/"</a>
*
* @return currentTPS / recentTPS[0]
* @return {@link PacketEvents#getRecentServerTPS()[0]}
*/
public static double getCurrentServerTPS() {
return getRecentServerTPS()[0];
@@ -151,23 +141,33 @@ public final class PacketEvents implements PacketListener, Listener {
* @param player
* @return ping
*/
public static int getPing(final Player player) {
public static int getPing(@NotNull final Player player) {
return NMSUtils.getPlayerPing(player);
}
/**
* Should I use this over System.currentTimeMillis()?
* <p>
* 1. System.currentTimeMillis() isn't supported on all machines
* 2. This is way more accurate than System.currentTimeMillis()
* 3. System.currentTimeMillis() can be up to 50ms off, depending on the operating system.
* When to use this(nano / 1 million) over {@link System#currentTimeMillis()}
* This is preciser than System.currentTimeMillis(), System.currentTimeMillis() can be up to 50ms off on some operating systems, but using this isn't cheap.
* Java documentation recommend using nano time if you are measuring elapsed time.
* In this function nanoTime is divided by 1 million giving us milliseconds.
* It is also important to mention that using this method doesn't guarantee thread safety.
*
* @return nanoTime / 1 million
*/
public static long highlyPreciseMillis() {
return System.nanoTime() / 1000000;
}
/**
* This is deprecated, use {@link #highlyPreciseMillis()} as they do the same thing, I just renamed the method.
*/
@Deprecated
public static long currentCalculatedMS() {
return System.nanoTime() / 1000000;
}
/**
* Get the player's version.
* Do not call this method in the PlayerInjectEvent, it is safe to call it in the PostPlayerInjectEvent.
@@ -176,39 +176,43 @@ public final class PacketEvents implements PacketListener, Listener {
* @param player
* @return ClientVersion
*/
@Nullable
public static ClientVersion getClientVersion(final Player player) {
final Object channel = TinyProtocolHandler.getPlayerChannel(player);
return clientVersionLookup.get(channel);
public static ClientVersion getClientVersion(@NotNull final Player player) {
return getClientVersion(player.getUniqueId());
}
public static ClientVersion getClientVersion(@NotNull final UUID uuid) {
return clientVersionsMap.get(uuid);
}
/**
* Get the players' client version
* Do not call this method in the PlayerInjectEvent, it is safe to call it in the PostPlayerInjectEvent.
* The EntityPlayer object is null at that time, resulting in the version lookup to fail.
* Version independent player injection
*
* @param channel
* @return ClientVersion
* @param player
*/
@Nullable
public static ClientVersion getClientVersion(final Object channel) {
return clientVersionLookup.get(channel);
public static void injectPlayer(final Player player) {
NettyPacketHandler.injectPlayer(player);
}
@PacketHandler
public void onLogin(final PacketLoginEvent e) {
if (e.getPacketName().equals(Packet.Login.HANDSHAKE)) {
final WrappedPacketLoginHandshake handshake = new WrappedPacketLoginHandshake(e.getPacket());
final ClientVersion clientVersion = ClientVersion.fromProtocolVersion(handshake.getProtocolVersion());
clientVersionLookup.put(e.getNettyChannel(), clientVersion);
}
/**
* Version independant player injection
*
* @param player
*/
public static void uninjectPlayer(final Player player) {
NettyPacketHandler.uninjectPlayer(player);
}
@PacketHandler
public void onPacket(final PacketEvent e) {
if(e instanceof PacketReceiveEvent) {
// System.out.println("RECEIVED");
}
/**
* Send a wrapped sendable packet to a player
*
* @param player
* @param sendable
*/
public static void sendPacket(final Player player, final Sendable sendable) {
NMSUtils.sendSendableWrapper(player, sendable);
}
/**
@@ -220,61 +224,35 @@ public final class PacketEvents implements PacketListener, Listener {
*/
@PacketHandler
public void onInject(final PlayerInjectEvent e) {
final String username = e.getPlayer().getName();
clientVersionsMap.put(e.getPlayer().getUniqueId(), e.getClientVersion());
}
@PacketHandler
public void onReceive(final PacketReceiveEvent e) {
}
/**
* Called after the PlayerJoinEvent ONLY if the player has been injected!
* Deprecated, please do not use this anymore
*
* @param e
*/
@PacketHandler
public void onPostInject(final PostPlayerInjectEvent e) {
//It is safe to get his client version in here.
final ClientVersion clientVersion = PacketEvents.getClientVersion(e.getPlayer());
}
@EventHandler
public void onJoin(PlayerJoinEvent e) {
if (hasInjected(e.getPlayer())) {
PacketEvents.getEventManager().callEvent(new PostPlayerInjectEvent(e.getPlayer()));
}
public void onJoin(final PlayerJoinEvent e) {
injectPlayer(e.getPlayer());
}
/**
* Version independent player injection
* @param player
*/
public static void injectPlayer(final Player player) {
TinyProtocolHandler.inject(player);
@EventHandler
public void onQuit(final PlayerQuitEvent e) {
uninjectPlayer(e.getPlayer());
}
/**
* Version independant player injection
*
* @param player
*/
public static void uninjectPlayer(final Player player) {
TinyProtocolHandler.uninject(player);
}
/**
* Returns whether we have injected the player
*
* @param player
* @return hasInjected
*/
public static boolean hasInjected(final Player player) {
return TinyProtocolHandler.hasInjected(player);
}
/**
* Send a wrapped sendable packet to a player
*
* @param player
* @param sendable
*/
public static void sendPacket(final Player player, final Sendable sendable) {
NMSUtils.sendSendableWrapper(player, sendable);
@EventHandler
public void onMove(final PlayerMoveEvent e) {
PacketEvents.getEventManager().callEvent(new BukkitMoveEvent(e));
}
}
@@ -4,8 +4,9 @@ package io.github.retrooper.packetevents.annotations;
import java.lang.annotation.Documented;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
/**
* Is for sure not null.
* Is for sure not null.
*/
@Documented
@Retention(RetentionPolicy.RUNTIME)
@@ -6,7 +6,7 @@ import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
/**
* Could be null.
* Could be null.
*/
@Documented
@Retention(RetentionPolicy.RUNTIME)
@@ -2,11 +2,13 @@ package io.github.retrooper.packetevents.enums;
public enum ClientVersion {
LESS_THAN_V_1_7_10, v_1_7_10, v_1_8, v_1_9, v_1_9_1, v_1_9_2, v_1_9_3, v_1_10, v_1_11, v_1_11_1, v_1_12, v_1_12_1, v_1_12_2,
v_1_13, v_1_13_1, v_1_13_2, v_1_14, v_1_14_1, v_1_14_2, v_1_14_3, v_1_14_4, v_1_15, v_1_15_1, v_1_15_2, HIGHER_THAN_V_1_15_2, INVALID;
v_1_13, v_1_13_1, v_1_13_2, v_1_14, v_1_14_1, v_1_14_2, v_1_14_3, v_1_14_4, v_1_15, v_1_15_1, v_1_15_2, HIGHER_THAN_V_1_15_2, INVALID, ACCESS_FAILURE;
public static ClientVersion fromProtocolVersion(final int protocolVersion) {
int remainder = -1;
switch (protocolVersion) {
case -1:
return ACCESS_FAILURE;
case 1:
case 2:
case 3:
@@ -59,7 +61,7 @@ public enum ClientVersion {
default:
remainder = protocolVersion;
}
if(remainder > 578) {
if (remainder > 578) {
return HIGHER_THAN_V_1_15_2;
}
return INVALID;
@@ -78,18 +80,18 @@ public enum ClientVersion {
/**
* Returns if the client's version is more outdated than the argument passed version
*
* @param version
* @return
*/
public boolean isLowerThan(final ClientVersion version) {
if(version == this) return false;
if (version == this) return false;
byte len = (byte) values().length;
for (byte i = 0; i < len; i++) {
final ClientVersion v = values()[i];
if(v == this) {
if (v == this) {
return true;
}
else if(v == version) {
} else if (v == version) {
return false;
}
}
@@ -1,9 +1,7 @@
package io.github.retrooper.packetevents.enums;
public enum Direction {
DOWN, UP, NORTH, SOUTH, WEST, EAST
,NORTH_EAST,
DOWN, UP, NORTH, SOUTH, WEST, EAST, NORTH_EAST,
NORTH_WEST, SOUTH_EAST,
SOUTH_WEST, WEST_NORTH_WEST,
NORTH_NORTH_WEST, NORTH_NORTH_EAST,
@@ -8,9 +8,9 @@ public enum EntityAnimationType {
}
public final int getIndex() {
for(int i = 0; i < values().length; i++) {
for (int i = 0; i < values().length; i++) {
final EntityAnimationType curType = values()[0];
if(curType == this) {
if (curType == this) {
return i;
}
}
@@ -2,5 +2,5 @@ package io.github.retrooper.packetevents.enums;
public enum Hand {
MAIN_HAND,
OFF_HAND;
OFF_HAND
}
@@ -5,10 +5,12 @@ import org.bukkit.Bukkit;
public enum ServerVersion {
v_1_7_10, v_1_8, v_1_8_3, v_1_8_8, v_1_9, v_1_9_4, v_1_10, v_1_11, v_1_12, v_1_13, v_1_13_2, v_1_14, v_1_15,
v_1_7_10, v_1_8, v_1_8_3, v_1_8_8, v_1_9, v_1_9_4, v_1_10, v_1_11, v_1_12, v_1_13, v_1_13_2, v_1_14, v_1_15, v_1_16,
ERROR;
private static final String nmsVersionSuffix = Bukkit.getServer().getClass().getPackage().getName().replace(".", ",").split(",")[3];
public static ServerVersion getVersion() {
ServerVersion[] vals = values();
ArrayUtils.reverse(vals);
@@ -21,8 +23,6 @@ public enum ServerVersion {
return ERROR;
}
private static final String nmsVersionSuffix = Bukkit.getServer().getClass().getPackage().getName().replace(".", ",").split(",")[3];
public static String getNmsSuffix() {
return nmsVersionSuffix;
}
@@ -53,14 +53,13 @@ public enum ServerVersion {
* @return
*/
public boolean isLowerThan(final ServerVersion version) {
if(version == this) return false;
if (version == this) return false;
byte len = (byte) values().length;
for (byte i = 0; i < len; i++) {
final ServerVersion v = values()[i];
if(v == this) {
if (v == this) {
return true;
}
else if(v == version) {
} else if (v == version) {
return false;
}
}
@@ -9,11 +9,12 @@ import io.github.retrooper.packetevents.enums.ServerVersion;
* recommended to avoid non thread safe bukkit operations
*/
public class PacketEvent {
protected long timestamp = PacketEvents.currentCalculatedMS();
protected static ServerVersion version = PacketEvents.getServerVersion();
protected long timestamp = PacketEvents.highlyPreciseMillis();
/**
* Timestamp of the packet
*
* @return
*/
public long getTimestamp() {
@@ -1,4 +1,4 @@
package io.github.retrooper.packetevents.event;
public interface PacketListener {
public interface PacketListener {
}
@@ -0,0 +1,35 @@
package io.github.retrooper.packetevents.event.impl;
import io.github.retrooper.packetevents.event.PacketEvent;
import org.bukkit.Location;
import org.bukkit.entity.Player;
import org.bukkit.event.player.PlayerMoveEvent;
public final class BukkitMoveEvent extends PacketEvent {
private final Player player;
private final Location to, from;
public BukkitMoveEvent(final Player player, final Location to, final Location from) {
this.player = player;
this.to = to;
this.from = from;
}
public BukkitMoveEvent(final PlayerMoveEvent e) {
this.player = e.getPlayer();
this.to = e.getTo();
this.from = e.getFrom();
}
public Player getPlayer() {
return player;
}
public Location getFrom() {
return from;
}
public Location getTo() {
return to;
}
}
@@ -1,26 +0,0 @@
package io.github.retrooper.packetevents.event.impl;
import io.github.retrooper.packetevents.event.PacketEvent;
public final class PacketLoginEvent extends PacketEvent {
private final Object channel;
private final String name;
private final Object packet;
public PacketLoginEvent(final Object channel, final String packetName, final Object packet) {
this.channel =channel;
this.name = packetName;
this.packet = packet;
}
public Object getNettyChannel() {
return channel;
}
public String getPacketName() {
return name;
}
public Object getPacket() {
return packet;
}
}
@@ -34,21 +34,17 @@ public final class PacketReceiveEvent extends PacketEvent {
}
/**
* Get the raw packet object
* This is deprecated, please us {@link #getNMSPacket()}
*
* @return packet
*/
@Deprecated
public Object getPacket() {
return this.packet;
}
/**
* Cancel the packet
*
* @param cancelled
*/
public void setCancelled(boolean cancelled) {
this.cancelled = cancelled;
public Object getNMSPacket() {
return this.packet;
}
/**
@@ -59,4 +55,13 @@ public final class PacketReceiveEvent extends PacketEvent {
public boolean isCancelled() {
return cancelled;
}
/**
* Cancel the packet
*
* @param cancelled
*/
public void setCancelled(boolean cancelled) {
this.cancelled = cancelled;
}
}
@@ -27,21 +27,30 @@ public final class PacketSendEvent extends PacketEvent {
}
/**
* Get the raw packet object
* This is deprecated, please us {@link #getNMSPacket()}
*
* @return nmsPacket
* @return packet
*/
@Deprecated
public Object getPacket() {
return this.packet;
}
public void setCancelled(boolean cancelled) {
this.cancelled = cancelled;
/**
* Get the raw packet object
*
* @return packet
*/
public Object getNMSPacket() {
return this.packet;
}
public boolean isCancelled() {
return cancelled;
}
public void setCancelled(boolean cancelled) {
this.cancelled = cancelled;
}
}
@@ -1,13 +1,18 @@
package io.github.retrooper.packetevents.event.impl;
import io.github.retrooper.packetevents.enums.ClientVersion;
import io.github.retrooper.packetevents.event.PacketEvent;
import io.github.retrooper.packetevents.utils.VersionLookupUtils;
import org.bukkit.entity.Player;
public final class PlayerInjectEvent extends PacketEvent {
private final Player player;
private boolean cancelled;
private final ClientVersion clientVersion;
public PlayerInjectEvent(final Player player) {
this.player = player;
this.clientVersion = ClientVersion.fromProtocolVersion(VersionLookupUtils.getProtocolVersion(player));
}
public boolean isCancelled() {
@@ -22,6 +27,10 @@ public final class PlayerInjectEvent extends PacketEvent {
setCancelled(true);
}
public ClientVersion getClientVersion() {
return clientVersion;
}
public Player getPlayer() {
return player;
}
@@ -5,9 +5,22 @@ import org.bukkit.entity.Player;
public final class PlayerUninjectEvent extends PacketEvent {
private final Player player;
private boolean cancelled;
public PlayerUninjectEvent(final Player player) {
this.player =player;
this.player = player;
}
public void setCancelled(final boolean val) {
this.cancelled = val;
}
public void cancel() {
setCancelled(true);
}
public boolean isCancelled() {
return this.cancelled;
}
public Player getPlayer() {
@@ -3,6 +3,10 @@ package io.github.retrooper.packetevents.event.impl;
import io.github.retrooper.packetevents.event.PacketEvent;
import org.bukkit.entity.Player;
/**
* Please use {@link PlayerInjectEvent}
*/
@Deprecated
public final class PostPlayerInjectEvent extends PacketEvent {
private final Player player;
@@ -6,6 +6,7 @@ import io.github.retrooper.packetevents.event.PacketEvent;
public final class ServerTickEvent extends PacketEvent {
private final int tick;
private final double tps;
public ServerTickEvent(final int tick, final long timestamp) {
this.tick = tick;
this.timestamp = timestamp;
@@ -9,10 +9,13 @@ import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
public final class EventManager {
private HashMap<PacketListener, List<Method>> registeredMethods = new HashMap<PacketListener, List<Method>>();
private static final ExecutorService executorService = Executors.newCachedThreadPool();
private final HashMap<PacketListener, List<Method>> registeredMethods = new HashMap<PacketListener, List<Method>>();
public void callEvent(final PacketEvent e) {
for (final PacketListener listener : registeredMethods.keySet()) {
@@ -32,7 +35,6 @@ public final class EventManager {
}
}
public void registerListener(final PacketListener e) {
if (registeredMethods.containsKey(e)) {
return;
@@ -57,7 +59,7 @@ public final class EventManager {
registeredMethods.clear();
}
public boolean hasRegistered(final PacketListener listener) {
public boolean isRegistered(final PacketListener listener) {
return registeredMethods.containsKey(listener);
}
}
@@ -3,15 +3,17 @@ package io.github.retrooper.packetevents.example;
import io.github.retrooper.packetevents.PacketEvents;
import org.bukkit.plugin.java.JavaPlugin;
public class MainExample extends JavaPlugin {
public class MainExample extends JavaPlugin {
@Override
public void onEnable() {
PacketEvents.start(this);
PacketEvents.getServerTickTask().cancel();
}
@Override
public void onDisable() {
PacketEvents.stop();
}
}
}
@@ -0,0 +1,61 @@
package io.github.retrooper.packetevents.handler;
import io.github.retrooper.packetevents.PacketEvents;
import io.github.retrooper.packetevents.enums.ServerVersion;
import io.github.retrooper.packetevents.event.impl.*;
import org.bukkit.entity.Player;
import java.util.concurrent.Future;
public class NettyPacketHandler {
public static final String handlerName = "packet_handler";
private static final ServerVersion version = PacketEvents.getServerVersion();
public static void injectPlayer(final Player player) {
final PlayerInjectEvent injectEvent = new PlayerInjectEvent(player);
PacketEvents.getEventManager().callEvent(injectEvent);
if (!injectEvent.isCancelled()) {
if (version.isLowerThan(ServerVersion.v_1_8)) {
NettyPacketHandler_7.injectPlayer(player);
} else {
NettyPacketHandler_8.injectPlayer(player);
}
PacketEvents.getEventManager().callEvent(new PostPlayerInjectEvent(player));
}
}
public static Future<?> uninjectPlayer(final Player player) {
final PlayerUninjectEvent uninjectEvent = new PlayerUninjectEvent(player);
PacketEvents.getEventManager().callEvent(uninjectEvent);
if (!uninjectEvent.isCancelled()) {
if (version.isLowerThan(ServerVersion.v_1_8)) {
return NettyPacketHandler_7.uninjectPlayer(player);
} else {
return NettyPacketHandler_8.uninjectPlayer(player);
}
}
return null;
}
public static Object read(final Player receiver, final Object packet) {
final String packetName = packet.getClass().getSimpleName();
final PacketSendEvent packetSendEvent = new PacketSendEvent(receiver, packetName, packet);
PacketEvents.getEventManager().callEvent(packetSendEvent);
if (!packetSendEvent.isCancelled()) {
return packet;
}
return null;
}
public static Object write(final Player sender, final Object packet) {
final String packetName = packet.getClass().getSimpleName();
final PacketReceiveEvent packetReceiveEvent = new PacketReceiveEvent(sender, packetName, packet);
PacketEvents.getEventManager().callEvent(packetReceiveEvent);
if (!packetReceiveEvent.isCancelled()) {
return packet;
}
return null;
}
}
@@ -0,0 +1,44 @@
package io.github.retrooper.packetevents.handler;
import io.github.retrooper.packetevents.utils.NMSUtils;
import net.minecraft.util.io.netty.channel.*;
import org.bukkit.entity.Player;
import java.util.concurrent.Future;
final class NettyPacketHandler_7 {
public static void injectPlayer(final Player player) {
final ChannelDuplexHandler channelDuplexHandler = new ChannelDuplexHandler() {
@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
Object packet = NettyPacketHandler.read(player, msg);
if(packet == null) {
return;
}
super.channelRead(ctx, msg);
}
@Override
public void write(ChannelHandlerContext ctx, Object msg, ChannelPromise promise) throws Exception {
Object packet = NettyPacketHandler.write(player, msg);
if(packet == null) {
return;
}
super.write(ctx, msg, promise);
}
};
final ChannelPipeline pipeline = ((Channel) NMSUtils.getChannel(player)).pipeline();
pipeline.addBefore(NettyPacketHandler.handlerName, player.getName(), channelDuplexHandler);
}
public static Future<?> uninjectPlayer(final Player player) {
final Channel channel = (Channel) NMSUtils.getChannel(player);
return channel.eventLoop().submit(new Runnable() {
@Override
public void run() {
channel.pipeline().remove(player.getName());
}
});
}
}
@@ -0,0 +1,46 @@
package io.github.retrooper.packetevents.handler;
import io.github.retrooper.packetevents.PacketEvents;
import io.github.retrooper.packetevents.enums.ServerVersion;
import io.github.retrooper.packetevents.utils.NMSUtils;
import io.netty.channel.*;
import org.bukkit.entity.Player;
import java.util.concurrent.Future;
final class NettyPacketHandler_8 {
private static final ServerVersion version = PacketEvents.getServerVersion();
public static void injectPlayer(final Player player) {
final ChannelDuplexHandler channelDuplexHandler = new ChannelDuplexHandler() {
@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
Object packet = NettyPacketHandler.read(player, msg);
if(packet == null) {
return;
}
super.channelRead(ctx, msg);
}
@Override
public void write(ChannelHandlerContext ctx, Object msg, ChannelPromise promise) throws Exception {
Object packet = NettyPacketHandler.write(player, msg);
if(packet == null) {
return;
}
super.write(ctx, msg, promise);
}
};
final ChannelPipeline pipeline = ((Channel) NMSUtils.getChannel(player)).pipeline();
pipeline.addBefore(NettyPacketHandler.handlerName, player.getName(), channelDuplexHandler);
}
public static Future<?> uninjectPlayer(final Player player) {
final Channel channel = (Channel) NMSUtils.getChannel(player);
return channel.eventLoop().submit(new Runnable() {
@Override
public void run() {
channel.pipeline().remove(player.getName());
}
});
}
}
@@ -1,92 +0,0 @@
package io.github.retrooper.packetevents.handler;
import io.github.retrooper.packetevents.PacketEvents;
import io.github.retrooper.packetevents.enums.ServerVersion;
import io.github.retrooper.packetevents.tinyprotocol.Reflection;
import io.github.retrooper.packetevents.tinyprotocol.Reflection.FieldAccessor;
import io.github.retrooper.packetevents.utils.NMSUtils;
import org.bukkit.entity.Player;
import org.bukkit.plugin.Plugin;
public final class TinyProtocolHandler {
private static final ServerVersion version = PacketEvents.getServerVersion();
private static Object tinyProtocol;
public static void initTinyProtocol(final Plugin plugin) {
if (version.isLowerThan(ServerVersion.v_1_8)) {
TinyProtocolHandler_1_7 tiny = new TinyProtocolHandler_1_7(plugin);
tiny.initTinyProtocol();
tinyProtocol = tiny;
} else {
TinyProtocolHandler_1_8 tiny = new TinyProtocolHandler_1_8(plugin);
tiny.initTinyProtocol();
tinyProtocol = tiny;
}
}
public static boolean hasInjected(final Player player) {
if (version.isLowerThan(ServerVersion.v_1_8)) {
TinyProtocolHandler_1_7 tiny = (TinyProtocolHandler_1_7) tinyProtocol;
assert tiny.tinyProtocol != null;
return tiny.tinyProtocol.hasInjected(player);
} else {
TinyProtocolHandler_1_8 tiny = (TinyProtocolHandler_1_8) tinyProtocol;
assert tiny.tinyProtocol != null;
return tiny.tinyProtocol.hasInjected(player);
}
}
public static void inject(final Player player) {
if (version.isLowerThan(ServerVersion.v_1_8)) {
TinyProtocolHandler_1_7 tiny = (TinyProtocolHandler_1_7) tinyProtocol;
assert tiny.tinyProtocol != null;
tiny.tinyProtocol.injectPlayer(player);
} else {
TinyProtocolHandler_1_8 tiny = (TinyProtocolHandler_1_8) tinyProtocol;
assert tiny.tinyProtocol != null;
tiny.tinyProtocol.injectPlayer(player);
}
}
public static void uninject(final Player player) {
if (version.isLowerThan(ServerVersion.v_1_8)) {
TinyProtocolHandler_1_7 tiny = (TinyProtocolHandler_1_7) tinyProtocol;
assert tiny.tinyProtocol != null;
tiny.tinyProtocol.uninjectPlayer(player);
} else {
TinyProtocolHandler_1_8 tiny = (TinyProtocolHandler_1_8) tinyProtocol;
assert tiny.tinyProtocol != null;
tiny.tinyProtocol.uninjectPlayer(player);
}
}
public static Object getPlayerChannel(final Player player) {
final Object entityPlayer = NMSUtils.getEntityPlayer(player);
final Object playerConnection = playerConnectionAccessor.get(entityPlayer);
final Object networkManager = networkManagerAccessor.get(playerConnection);
return nettyChannelAccessor.get(networkManager);
}
private static Class<?> networkManagerClass;
private static final FieldAccessor<?> playerConnectionAccessor, networkManagerAccessor, nettyChannelAccessor;
private static Class<?> channelClass;
static {
try {
networkManagerClass = NMSUtils.getNMSClass("NetworkManager");
channelClass = NMSUtils.getNettyClass("channel.Channel");
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
playerConnectionAccessor = Reflection.getField(NMSUtils.entityPlayerClass, NMSUtils.playerConnectionClass, 0);
networkManagerAccessor = Reflection.getField(NMSUtils.playerConnectionClass, networkManagerClass, 0);
nettyChannelAccessor = Reflection.getField(networkManagerClass, channelClass, 0);
}
}
@@ -1,59 +0,0 @@
package io.github.retrooper.packetevents.handler;
import io.github.retrooper.packetevents.PacketEvents;
import io.github.retrooper.packetevents.annotations.Nullable;
import io.github.retrooper.packetevents.event.impl.PacketLoginEvent;
import io.github.retrooper.packetevents.event.impl.PacketReceiveEvent;
import io.github.retrooper.packetevents.event.impl.PacketSendEvent;
import io.github.retrooper.packetevents.packet.Packet;
import io.github.retrooper.packetevents.tinyprotocol.TinyProtocol7;
import net.minecraft.util.io.netty.channel.Channel;
import org.bukkit.entity.Player;
import org.bukkit.plugin.Plugin;
public final class TinyProtocolHandler_1_7 {
private final Plugin plugin;
public TinyProtocolHandler_1_7(final Plugin plugin) {
this.plugin = plugin;
}
@Nullable
public TinyProtocol7 tinyProtocol;
public void initTinyProtocol() {
tinyProtocol = new TinyProtocol7(getPlugin()) {
@Override
public Object onPacketOutAsync(Player receiver, Channel channel, Object packet) {
final String packetName = packet.getClass().getSimpleName();
final PacketSendEvent packetSendEvent = new PacketSendEvent(receiver, packetName, packet);
PacketEvents.getEventManager().callEvent(packetSendEvent);
if (!packetSendEvent.isCancelled()) {
return packet;
}
return null;
}
@Override
public Object onPacketInAsync(Player sender, Channel channel, Object packet) {
final String packetName = packet.getClass().getSimpleName();
for(final String loginPacket : Packet.Login.LOGIN_PACKETS) {
if(packetName.equals(loginPacket)) {
PacketEvents.getEventManager().callEvent(new PacketLoginEvent(channel, packetName, packet));
return packet;
}
}
final PacketReceiveEvent packetReceiveEvent = new PacketReceiveEvent(sender, packetName, packet);
PacketEvents.getEventManager().callEvent(packetReceiveEvent);
if (!packetReceiveEvent.isCancelled()) {
return packet;
}
return null;
}
};
}
public Plugin getPlugin() {
return plugin;
}
}
@@ -1,84 +0,0 @@
package io.github.retrooper.packetevents.handler;
import io.github.retrooper.packetevents.PacketEvents;
import io.github.retrooper.packetevents.annotations.Nullable;
import io.github.retrooper.packetevents.enums.ServerVersion;
import io.github.retrooper.packetevents.event.impl.PacketLoginEvent;
import io.github.retrooper.packetevents.event.impl.PacketReceiveEvent;
import io.github.retrooper.packetevents.event.impl.PacketSendEvent;
import io.github.retrooper.packetevents.packet.Packet;
import io.github.retrooper.packetevents.tinyprotocol.TinyProtocol8;
import io.netty.channel.Channel;
import org.bukkit.entity.Player;
import org.bukkit.plugin.Plugin;
public final class TinyProtocolHandler_1_8 {
private static final ServerVersion version = PacketEvents.getServerVersion();
private final Plugin plugin;
public TinyProtocolHandler_1_8(final Plugin plugin) {
this.plugin = plugin;
}
@Nullable
public TinyProtocol8 tinyProtocol;
public void initTinyProtocol() {
tinyProtocol = new TinyProtocol8(getPlugin()) {
@Override
public Object onPacketOutAsync(Player receiver, Channel channel, Object packet) {
final String packetName = packet.getClass().getSimpleName();
final PacketSendEvent packetSendEvent = new PacketSendEvent(receiver, packetName, packet);
PacketEvents.getEventManager().callEvent(packetSendEvent);
if (!packetSendEvent.isCancelled()) {
return packet;
}
return null;
}
@Override
public Object onPacketInAsync(Player sender, Channel channel, Object packet) {
final String packetName = packet.getClass().getSimpleName();
for (final String loginPacket : Packet.Login.LOGIN_PACKETS) {
if (packetName.equals(loginPacket)) {
PacketEvents.getEventManager().callEvent(new PacketLoginEvent(channel, packetName, packet));
return packet;
}
}
final PacketReceiveEvent packetReceiveEvent = new PacketReceiveEvent(sender, packetName, packet);
PacketEvents.getEventManager().callEvent(packetReceiveEvent);
if (!packetReceiveEvent.isCancelled()) {
return packet;
}
return null;
}
};
}
public static String getNetworkManagersFieldName() {
//1.8
if (version.equals(ServerVersion.v_1_8)) {
return "g";
}
//1.8.3->1.12
else if (version.isLowerThan(ServerVersion.v_1_13)) {
return "h";
}
//1.13->1.14
else if (version.isLowerThan(ServerVersion.v_1_15)) {
return "g";
}
//1.15
else {
return "listeningChannels";
}
}
public Plugin getPlugin() {
return plugin;
}
}
@@ -1,19 +1,17 @@
package io.github.retrooper.packetevents.mojang;
import com.mojang.authlib.properties.PropertyMap;
import org.bukkit.craftbukkit.libs.org.apache.commons.lang3.StringUtils;
import org.bukkit.craftbukkit.libs.org.apache.commons.lang3.builder.ToStringBuilder;
import java.util.UUID;
public class GameProfile {
public final class GameProfile {
private final UUID id;
private final String name;
private final PropertyMap properties = new PropertyMap();
private boolean legacy;
public GameProfile(UUID id, String name) {
if (id == null && StringUtils.isBlank(name)) {
if (id == null && name.isEmpty()) {
throw new IllegalArgumentException("Name and ID cannot both be blank");
} else {
this.id = id;
@@ -34,19 +32,23 @@ public class GameProfile {
}
public boolean isComplete() {
return this.id != null && StringUtils.isNotBlank(this.getName());
return this.id != null && !getName().isEmpty();
}
public boolean equalsMojangGameProfile(com.mojang.authlib.GameProfile profile) {
public boolean isLegacy() {
return this.legacy;
}
public boolean equals(com.mojang.authlib.GameProfile profile) {
if (profile != null) {
if (profile.getId() != null && getId() != null && profile.getId() == getId()
&& profile.getName() != null && getName() != null && profile.getName().equals(getName())) {
return true;
}
return profile.getId() != null && getId() != null && profile.getId() == getId()
&& profile.getName() != null && getName() != null && profile.getName().equals(getName());
}
return false;
}
@Override
public boolean equals(Object o) {
if (this == o) {
return true;
@@ -61,30 +63,22 @@ public class GameProfile {
}
if (this.name != null) {
if (this.name.equals(that.name)) {
return true;
}
} else if (that.name == null) {
return true;
}
return false;
return this.name.equals(that.name);
} else return that.name == null;
} else {
return false;
}
}
@Override
public int hashCode() {
int result = this.id != null ? this.id.hashCode() : 0;
result = 31 * result + (this.name != null ? this.name.hashCode() : 0);
return result;
}
@Override
public String toString() {
return (new ToStringBuilder(this)).append("id", this.id).append("name", this.name).append("properties", this.properties).append("legacy", this.legacy).toString();
}
public boolean isLegacy() {
return this.legacy;
return "id: " + id + ", name: " + name + ", legacy: " + legacy;
}
}
@@ -3,7 +3,58 @@ package io.github.retrooper.packetevents.packet;
import io.github.retrooper.packetevents.enums.ServerVersion;
import io.github.retrooper.packetevents.utils.NMSUtils;
public abstract class Packet {
@Deprecated
public final class Packet {
private static Class<?> packetPlayInFlying, packetPlayInPosition, packetPlayInPositionLook, packetPlayInLook;
static {
try {
packetPlayInFlying = NMSUtils.getNMSClass(Client.FLYING);
} catch (ClassNotFoundException e) {
//That is fine, they are on 1.9+
}
try {
packetPlayInPosition = NMSUtils.getNMSClass(Client.POSITION);
packetPlayInPositionLook = NMSUtils.getNMSClass(Client.POSITION_LOOK);
packetPlayInLook = NMSUtils.getNMSClass(Client.LOOK);
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
}
/**
* Is this NMS packet an instanceof the "PacketPlayInFlying" packet in the 1.8 protocol?
* Supports 1.9->1.15.2 too!
*
* @param nmsPacket
* @return If the nms packet provided is an instanceof the "PacketPlayInFlying" packet in the 1.8 protocol!
*/
public static boolean isInstanceOfFlyingPacket(Object nmsPacket) {
//1.7->1.8.8
if (packetPlayInFlying != null) {
return packetPlayInFlying.isInstance(nmsPacket);
} else {
//1.9->1.15.2
return packetPlayInPosition.isInstance(nmsPacket)
|| packetPlayInPositionLook.isInstance(nmsPacket)
|| packetPlayInLook.isInstance(nmsPacket);
}
}
/**
* Is this NMS Packet an instanceof the "PacketPlayInPosition" or "PacketPlayInPositionLook"
* @param nmsPacket
* @return
*/
public static boolean isInstanceOfPositionOrPositionLook(final Object nmsPacket) {
return packetPlayInPosition.isInstance(nmsPacket) || packetPlayInPositionLook.isInstance(nmsPacket);
}
public static boolean isInstanceOfLook(final Object nmsPacket) {
return packetPlayInLook.isInstance(nmsPacket);
}
public static class Client {
private static final String c = "PacketPlayIn";
@@ -83,54 +134,4 @@ public abstract class Packet {
public static final String[] LOGIN_PACKETS = new String[]{"PacketHandshakingInSetProtocol", "PacketLoginInStart", "PacketLoginInEncryptionBegin"};
}
/**
* Is this NMS packet an instanceof the "PacketPlayInFlying" packet in the 1.8 protocol?
* Supports 1.9->1.15.2 too!
* @param nmsPacket
* @return If the nms packet provided is an instanceof the "PacketPlayInFlying" packet in the 1.8 protocol!
*/
public static boolean isInstanceOfFlyingPacket(Object nmsPacket) {
//1.7->1.8.8
if (packetPlayInFlying != null) {
return packetPlayInFlying.isInstance(nmsPacket);
} else {
//1.9->1.15.2
return packetPlayInPosition.isInstance(nmsPacket)
|| packetPlayInPositionLook.isInstance(nmsPacket)
|| packetPlayInLook.isInstance(nmsPacket);
}
}
/**
* Use isInstanceOfFlyingPacket(nmsPacketObject) instead of this, as the flying packet is the only packet that has subclasses (in 1.8 atleast).
* Will be removed in newer versions of PacketEvents!
* @param fatherPacket
* @param childPacket
* @return isInstanceOf
*/
@Deprecated
public static boolean isInstanceOf(String fatherPacket, String childPacket) {
if (fatherPacket.equals(Client.FLYING) && childPacket.equals(Client.POSITION) || childPacket.equals(Client.POSITION_LOOK) || childPacket.equals(Client.LOOK)) {
return true;
}
return fatherPacket.equals(childPacket);
}
private static Class<?> packetPlayInFlying, packetPlayInPosition, packetPlayInPositionLook, packetPlayInLook;
static {
try {
packetPlayInFlying = NMSUtils.getNMSClass(Client.FLYING);
} catch (ClassNotFoundException e) {
//That is fine, they are on 1.9+ so we just initiate the rest of the variables
try {
packetPlayInPosition = NMSUtils.getNMSClass(Client.POSITION);
packetPlayInPositionLook = NMSUtils.getNMSClass(Client.POSITION_LOOK);
packetPlayInLook = NMSUtils.getNMSClass(Client.LOOK);
} catch (ClassNotFoundException e2) {
e2.printStackTrace();
}
}
}
}
@@ -0,0 +1,183 @@
package io.github.retrooper.packetevents.packet;
import io.github.retrooper.packetevents.PacketEvents;
import io.github.retrooper.packetevents.enums.ServerVersion;
import io.github.retrooper.packetevents.utils.NMSUtils;
public final class PacketType {
private static final ServerVersion version = PacketEvents.getServerVersion();
public static final class Util {
/**
* Is this NMS packet an instance of the "PacketPlayInFlying" packet?
* Supports 1.9->1.15.2 too!
*
* @param nmsPacket
* @return If the nms packet provided is an instanceof the "PacketPlayInFlying" packet in the 1.8 protocol & 1.16 protocol!
*/
public static boolean isInstanceOfFlyingPacket(final Object nmsPacket) {
//1.7->1.8.8
if (packetPlayInFlying != null) {
return packetPlayInFlying.isInstance(nmsPacket);
} else {
//1.9->1.15.2
return isInstanceOfPositionOrPositionLook(nmsPacket) || isInstanceOfPositionLookPacket(nmsPacket);
}
}
/**
* Is this NMS packet an instance of the "PacketPlayInPosition" packet?
*
* @param nmsPacket
* @return nmsPacket instanceof PacketPlayInPosition
*/
public static boolean isInstanceOfPositionPacket(final Object nmsPacket) {
return packetPlayInPosition.isInstance(nmsPacket);
}
/**
* Is this NMS packet an instance of the "PacketPlayInPositionLook" packet?
*
* @param nmsPacket
* @return nmsPacket instanceof PacketPlayInPositionLook
*/
public static boolean isInstanceOfPositionLookPacket(final Object nmsPacket) {
return packetPlayInPositionLook.isInstance(nmsPacket);
}
/**
* Is this NMS Packet an instanceof the "PacketPlayInPosition" or "PacketPlayInPositionLook"
*
* @param nmsPacket
* @return nmsPacket instanceof PacketPlayInPosition || nmsPacket instanceof PacketPlayInPositionLook
*/
public static boolean isInstanceOfPositionOrPositionLook(final Object nmsPacket) {
return isInstanceOfPositionPacket(nmsPacket) || isInstanceOfPositionLookPacket(nmsPacket);
}
/**
* Is this NMS Packet an instance of the "PacketPlayInLook" packet?
*
* @param nmsPacket
* @return nmsPacket instanceof PacketPlayInLook
*/
public static boolean isInstanceOfLook(final Object nmsPacket) {
return packetPlayInLook.isInstance(nmsPacket);
}
public static boolean isInstanceOfUseEntity(final Object nmsPacket) {
return packetPlayInUseEntity.isInstance(nmsPacket);
}
private static Class<?> packetPlayInFlying, packetPlayInPosition, packetPlayInPositionLook, packetPlayInLook, packetPlayInUseEntity;
static {
try {
//Only exists in 1.7->1.8.8 & 1.16 protocol
packetPlayInFlying = NMSUtils.getNMSClass(Client.FLYING);
} catch (ClassNotFoundException e) {
//That is fine, they are on 1.9->1.15.2
}
try {
packetPlayInPosition = NMSUtils.getNMSClass(Client.POSITION);
packetPlayInPositionLook = NMSUtils.getNMSClass(Client.POSITION_LOOK);
packetPlayInLook = NMSUtils.getNMSClass(Client.LOOK);
} catch (ClassNotFoundException e) {
for (final Class<?> cls : packetPlayInFlying.getDeclaredClasses()) {
if (cls.getSimpleName().equals(Client.POSITION)) {
packetPlayInPosition = cls;
} else if (cls.getSimpleName().equals(Client.POSITION_LOOK)) {
packetPlayInPositionLook = cls;
} else if (cls.getSimpleName().equals(Client.LOOK)) {
packetPlayInLook = cls;
}
}
}
try {
packetPlayInUseEntity = NMSUtils.getNMSClass(Client.USE_ENTITY);
}
catch(ClassNotFoundException e) {
e.printStackTrace();
}
}
}
public static final class Client {
private static final String c = "PacketPlayIn";
@Deprecated
public static final String FLYING = c + "Flying";
public static final String POSITION = c + "Position";
public static final String POSITION_LOOK = c + "PositionLook";
public static final String LOOK = c + "Look";
public static final String CLIENT_COMMAND = c + "ClientCommand";
public static final String TRANSACTION = c + "Transaction";
public static final String BLOCK_DIG = c + "BlockDig";
public static final String ENTITY_ACTION = c + "EntityAction";
public static final String USE_ENTITY = c + "UseEntity";
public static final String WINDOW_CLICK = c + "WindowClick";
public static final String STEER_VEHICLE = c + "SteerVehicle";
public static final String CUSTOM_PAYLOAD = c + "CustomPayload";
public static final String ARM_ANIMATION = c + "ArmAnimation";
/**
* The packet name of the block place depending on your server version, "PacketPlayInBlockPlace" or "PacketPlayInUseItem"
*/
public static final String BLOCK_PLACE = c + ((ServerVersion.getVersion().isHigherThan(ServerVersion.v_1_8_8)) ? "UseItem" : "BlockPlace");
public static final String ABILITIES = c + "Abilities";
public static final String HELD_ITEM_SLOT = c + "HeldItemSlot";
public static final String CLOSE_WINDOW = c + "CloseWindow";
public static final String TAB_COMPLETE = c + "TabComplete";
public static final String CHAT = c + "Chat";
public static final String SET_CREATIVE_SLOT = c + "SetCreativeSlot";
public static final String KEEP_ALIVE = c + "KeepAlive";
}
public static final class Server {
private static final String s = "PacketPlayOut";
public static final String ANIMATION = s + "Animation";
public static final String KEEP_ALIVE = s + "KeepAlive";
public static final String CHAT = s + "Chat";
public static final String POSITION = s + "Position";
public static final String TRANSACTION = s + "Transaction";
public static final String NAMED_ENTITY_SPAWN = s + "NamedEntitySpawn";
public static final String SPAWN_ENTITY_LIVING = s + "SpawnEntityLiving";
public static final String SPAWN_ENTITY = s + "SpawnEntity";
public static final String CUSTOM_PAYLOAD = s + "CustomPayload";
public static final String ABILITIES = s + "Abilities";
public static final String ENTITY_METADATA = s + "EntityMetadata";
public static final String ENTITY_VELOCITY = s + "EntityVelocity";
public static final String ENTITY_DESTROY = s + "EntityDestroy";
public static final String ENTITY_HEAD_ROTATION = s + "EntityHeadRotation";
public static final String BLOCK_CHANGE = s + "BlockChange";
public static final String CLOSE_WINDOW = s + "CloseWindow";
public static final String HELD_ITEM_SLOT = s + "HeldItemSlot";
public static final String TAB_COMPLETE = s + "TabComplete";
public static final String RESPAWN = s + "Respawn";
public static final String WORLD_PARTICLES = s + "WorldParticles";
public static final String COMMANDS = s + "Commands";
public static final String OPEN_WINDOW = s + "OpenWindow";
public static final String LOGIN = s + "Login";
public static final String SERVER_DIFFICULTY = s + "ServerDifficulty";
}
public static final class Login {
public static final String HANDSHAKE = "PacketHandshakingInSetProtocol";
public static final String PING = "PacketStatusInPing";
public static final String START = "PacketStatusInStart";
public static final String SUCCESS = "PacketLoginOutSuccess";
public static final String ENCRYPTION_BEGIN_IN = "PacketLoginInEncryptionBegin";
public static final String ENCRYPTION_BEGIN_OUT = "PacketLoginOutEncryptionBegin";
}
}
@@ -1,5 +1,5 @@
package io.github.retrooper.packetevents.packetwrappers;
public interface Sendable {
public Object asNMSPacket();
Object asNMSPacket();
}
@@ -4,13 +4,13 @@ import io.github.retrooper.packetevents.enums.ServerVersion;
import org.bukkit.entity.Player;
public class WrappedPacket {
protected static ServerVersion version = ServerVersion.getVersion();
protected final Player player;
protected Object packet;
protected static ServerVersion version = ServerVersion.getVersion();
public WrappedPacket(final Object packet) {
this.player = null;
if(packet == null)return;
if (packet == null) return;
this.packet = packet;
try {
setup();
@@ -21,7 +21,7 @@ public class WrappedPacket {
public WrappedPacket(final Player player, final Object packet) {
this.player = player;
if(packet == null)return;
if (packet == null) return;
this.packet = packet;
try {
setup();
@@ -30,7 +30,7 @@ public class WrappedPacket {
}
}
protected void setup() {
protected void setup() {
}
@@ -6,6 +6,36 @@ import io.github.retrooper.packetevents.utils.NMSUtils;
import java.lang.reflect.Field;
public final class WrappedPacketInAbilities extends WrappedPacket {
private static Class<?> abilitiesClass;
private static final Field[] fields = new Field[6];
static {
try {
abilitiesClass = NMSUtils.getNMSClass("PacketPlayInAbilities");
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
try {
fields[0] = abilitiesClass.getDeclaredField("a");
fields[1] = abilitiesClass.getDeclaredField("b");
fields[2] = abilitiesClass.getDeclaredField("c");
fields[3] = abilitiesClass.getDeclaredField("d");
fields[4] = abilitiesClass.getDeclaredField("e");
fields[5] = abilitiesClass.getDeclaredField("f");
} catch (NoSuchFieldException e) {
e.printStackTrace();
}
for (Field f : fields) {
if (f != null) {
f.setAccessible(true);
}
}
}
private boolean isVulnerable;
private boolean isFlying;
private boolean allowFly;
@@ -39,6 +69,15 @@ public final class WrappedPacketInAbilities extends WrappedPacket {
return isFlying;
}
public boolean isFlightAllowed() {
return allowFly;
}
/**
* Use {@link WrappedPacketInAbilities#isFlightAllowed()}
* @return
*/
@Deprecated
public boolean canFly() {
return allowFly;
}
@@ -54,35 +93,4 @@ public final class WrappedPacketInAbilities extends WrappedPacket {
public float getWalkSpeed() {
return walkSpeed;
}
private static Class<?> abilitiesClass;
private static Field[] fields = new Field[6];
static {
try {
abilitiesClass = NMSUtils.getNMSClass("PacketPlayInAbilities");
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
try {
fields[0] = abilitiesClass.getDeclaredField("a");
fields[1] = abilitiesClass.getDeclaredField("b");
fields[2] = abilitiesClass.getDeclaredField("c");
fields[3] = abilitiesClass.getDeclaredField("d");
fields[4] = abilitiesClass.getDeclaredField("e");
fields[5] = abilitiesClass.getDeclaredField("f");
} catch (NoSuchFieldException e) {
e.printStackTrace();
}
for (Field f : fields) {
if (f != null) {
f.setAccessible(true);
}
}
}
}
@@ -4,86 +4,21 @@ import io.github.retrooper.packetevents.enums.Direction;
import io.github.retrooper.packetevents.enums.PlayerDigType;
import io.github.retrooper.packetevents.enums.ServerVersion;
import io.github.retrooper.packetevents.packetwrappers.api.WrappedPacket;
import io.github.retrooper.packetevents.tinyprotocol.Reflection;
import io.github.retrooper.packetevents.reflectionutils.Reflection;
import io.github.retrooper.packetevents.utils.NMSUtils;
import io.github.retrooper.packetevents.utils.vector.Vector3i;
import java.lang.reflect.Field;
public final class WrappedPacketInBlockDig extends WrappedPacket {
private Vector3i blockPosition;
private Direction direction;
private PlayerDigType digType;
public WrappedPacketInBlockDig(Object packet) {
super(packet);
}
@Override
protected void setup() {
Direction enumDirection = null;
PlayerDigType enumDigType = null;
//1.7.10
try {
if (version == ServerVersion.v_1_7_10) {
final int x = fields[0].getInt(packet);
final int y = fields[1].getInt(packet);
final int z = fields[2].getInt(packet);
this.blockPosition = new Vector3i(x, y, z);
enumDirection = Direction.get((byte) face.getInt(packet));
enumDigType = PlayerDigType.get((byte) e.getInt(packet));
} else {
//1.8+
final Object blockPosObj = fields[0].get(packet);
final Object enumDirectionObj = fields[1].get(packet);
final Object digTypeObj = fields[2].get(packet);
final int x = blockPosXYZ[0].get(blockPosObj);
final int y = blockPosXYZ[1].get(blockPosObj);
final int z = blockPosXYZ[2].get(blockPosObj);
this.blockPosition = new Vector3i(x, y, z);
enumDirection = Direction.valueOf(((Enum) enumDirectionObj).name());
enumDigType = PlayerDigType.valueOf(((Enum) digTypeObj).name());
}
}
catch(IllegalAccessException e) {
e.printStackTrace();
}
this.direction = enumDirection;
this.digType = enumDigType;
}
public Vector3i getBlockPosition() {
return blockPosition;
}
public Direction getDirection() {
return direction;
}
public PlayerDigType getDigType() {
return digType;
}
//ALL
private static Class<?> blockDigClass;
//1.8
private static Field[] fields = new Field[3];
private static final Field[] fields = new Field[3];
private static Class<?> blockPositionClass;
private static Reflection.FieldAccessor<Integer>[] blockPosXYZ = new Reflection.FieldAccessor[3];
private static final Reflection.FieldAccessor<Integer>[] blockPosXYZ = new Reflection.FieldAccessor[3];
//1.7
private static Field face;
private static Field e;
static {
@@ -118,20 +53,77 @@ public final class WrappedPacketInBlockDig extends WrappedPacket {
e.printStackTrace();
}
for(Field f : fields) {
if(f != null) {
for (Field f : fields) {
if (f != null) {
f.setAccessible(true);
}
}
if(e != null) {
if (e != null) {
e.setAccessible(true);
}
if(face != null) {
if (face != null) {
face.setAccessible(true);
}
}
private Vector3i blockPosition;
private Direction direction;
private PlayerDigType digType;
public WrappedPacketInBlockDig(Object packet) {
super(packet);
}
@Override
protected void setup() {
Direction enumDirection = null;
PlayerDigType enumDigType = null;
//1.7.10
try {
if (version == ServerVersion.v_1_7_10) {
final int x = fields[0].getInt(packet);
final int y = fields[1].getInt(packet);
final int z = fields[2].getInt(packet);
this.blockPosition = new Vector3i(x, y, z);
enumDirection = Direction.get((byte) face.getInt(packet));
enumDigType = PlayerDigType.get((byte) e.getInt(packet));
} else {
//1.8+
final Object blockPosObj = fields[0].get(packet);
final Object enumDirectionObj = fields[1].get(packet);
final Object digTypeObj = fields[2].get(packet);
final int x = blockPosXYZ[0].get(blockPosObj);
final int y = blockPosXYZ[1].get(blockPosObj);
final int z = blockPosXYZ[2].get(blockPosObj);
this.blockPosition = new Vector3i(x, y, z);
enumDirection = Direction.valueOf(((Enum) enumDirectionObj).name());
enumDigType = PlayerDigType.valueOf(((Enum) digTypeObj).name());
}
} catch (IllegalAccessException e) {
e.printStackTrace();
}
this.direction = enumDirection;
this.digType = enumDigType;
}
public Vector3i getBlockPosition() {
return blockPosition;
}
public Direction getDirection() {
return direction;
}
public PlayerDigType getDigType() {
return digType;
}
}
@@ -22,22 +22,28 @@ public final class WrappedPacketInBlockPlace extends WrappedPacket {
Vector3i position = null;
ItemStack itemStack = null;
try {
if (version.isHigherThan(ServerVersion.v_1_8_8)) {
final WrappedPacketInBlockPlace_1_9 updatedBlockPlace = new WrappedPacketInBlockPlace_1_9(getPlayer(), packet);
final Block block = updatedBlockPlace.getBlock();
position = new Vector3i(block.getX(), block.getY(), block.getZ());
itemStack = new ItemStack(block.getType());
} else {
final WrappedPacketInBlockPlace_1_8 legacyBlockPlace = new WrappedPacketInBlockPlace_1_8(packet);
position = legacyBlockPlace.getBlockPosition();
itemStack = legacyBlockPlace.getItemStack();
} }
catch(IllegalArgumentException e) {
if (version.isHigherThan(ServerVersion.v_1_8_8)) {
final WrappedPacketInBlockPlace_1_9 blockPlace_1_9 = new WrappedPacketInBlockPlace_1_9(getPlayer(), packet);
final Block block = blockPlace_1_9.getBlock();
position = new Vector3i(block.getX(), block.getY(), block.getZ());
itemStack = new ItemStack(block.getType());
} else if(version.isHigherThan(ServerVersion.v_1_7_10)){
final WrappedPacketInBlockPlace_1_8 blockPlace_1_8 = new WrappedPacketInBlockPlace_1_8(packet);
position = blockPlace_1_8.getBlockPosition();
itemStack = blockPlace_1_8.getItemStack();
}
else {
final WrappedPacketInBlockPlace_1_7_10 blockPlace_1_7_10 = new WrappedPacketInBlockPlace_1_7_10(getPlayer(), packet);
position = blockPlace_1_7_10.getBlockPosition();
this.itemStack = blockPlace_1_7_10.getItemStack();
}
} catch (IllegalArgumentException e) {
e.printStackTrace();
}
this.blockPosition = position;
this.itemStack = itemStack;
}
public Player getPlayer() {
return this.player;
}
@@ -53,7 +59,7 @@ public final class WrappedPacketInBlockPlace extends WrappedPacket {
static {
if (version.isHigherThan(ServerVersion.v_1_8_8)) {
WrappedPacketInBlockPlace_1_9.initStatic();
} else if(version.isLowerThan(ServerVersion.v_1_9) && version.isHigherThan(ServerVersion.v_1_7_10)){
} else if (version.isHigherThan(ServerVersion.v_1_7_10)) {
WrappedPacketInBlockPlace_1_8.initStatic();
}
}
@@ -10,6 +10,7 @@ final class WrappedPacketInBlockPlace_1_7_10 extends WrappedPacket {
private Vector3i blockPosition;
private ItemStack itemStack;
private int blockFace;
WrappedPacketInBlockPlace_1_7_10(final Player player, final Object packet) {
super(player, packet);
}
@@ -17,14 +18,14 @@ final class WrappedPacketInBlockPlace_1_7_10 extends WrappedPacket {
@Override
protected void setup() {
final PacketPlayInBlockPlace blockPlace = (PacketPlayInBlockPlace)packet;
final PacketPlayInBlockPlace blockPlace = (PacketPlayInBlockPlace) packet;
this.blockPosition = new Vector3i(blockPlace.c(), blockPlace.d(), blockPlace.e());
this.blockFace = blockPlace.d();
net.minecraft.server.v1_7_R4.ItemStack stack = blockPlace.getItemStack();
this.itemStack = org.bukkit.craftbukkit.v1_7_R4.inventory.CraftItemStack.asBukkitCopy(stack);
this.itemStack = org.bukkit.craftbukkit.v1_7_R4.inventory.CraftItemStack.asBukkitCopy(stack);
}
public Vector3i getBlockPosition() {
@@ -1,18 +1,40 @@
package io.github.retrooper.packetevents.packetwrappers.in.blockplace;
import io.github.retrooper.packetevents.packetwrappers.api.WrappedPacket;
import io.github.retrooper.packetevents.tinyprotocol.Reflection;
import io.github.retrooper.packetevents.reflectionutils.Reflection;
import io.github.retrooper.packetevents.utils.NMSUtils;
import io.github.retrooper.packetevents.utils.vector.Vector3i;
import org.bukkit.inventory.ItemStack;
final class WrappedPacketInBlockPlace_1_8 extends WrappedPacket {
private static final Reflection.MethodInvoker[] blockPositionXYZInvoker = new Reflection.MethodInvoker[3];
private static Class<?> blockPlaceClass, blockPositionClass;
private static Reflection.FieldAccessor<?> blockPositionAccessor, itemStackFieldAccessor;
private Vector3i blockPosition;
private ItemStack itemStack;
WrappedPacketInBlockPlace_1_8(final Object packet) {
super(packet);
}
protected static void initStatic() {
try {
blockPlaceClass = NMSUtils.getNMSClass("PacketPlayInBlockPlace");
blockPositionClass = NMSUtils.getNMSClass("BlockPosition");
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
itemStackFieldAccessor = Reflection.getField(blockPlaceClass, NMSUtils.nmsItemStackClass, 0);
blockPositionAccessor = Reflection.getField(blockPlaceClass, blockPositionClass, 1);
blockPositionXYZInvoker[0] = Reflection.getMethod(blockPositionClass.getSuperclass(), "getX");
blockPositionXYZInvoker[1] = Reflection.getMethod(blockPositionClass.getSuperclass(), "getY");
blockPositionXYZInvoker[2] = Reflection.getMethod(blockPositionClass.getSuperclass(), "getZ");
}
@Override
protected void setup() {
Object nmsBlockPos = blockPositionAccessor.get(packet);
@@ -33,27 +55,4 @@ final class WrappedPacketInBlockPlace_1_8 extends WrappedPacket {
public ItemStack getItemStack() {
return itemStack;
}
private static Class<?> blockPlaceClass, blockPositionClass;
private static Reflection.FieldAccessor<?> blockPositionAccessor, itemStackFieldAccessor;
private static final Reflection.MethodInvoker[] blockPositionXYZInvoker = new Reflection.MethodInvoker[3];
protected static void initStatic(){
try {
blockPlaceClass = NMSUtils.getNMSClass("PacketPlayInBlockPlace");
blockPositionClass = NMSUtils.getNMSClass("BlockPosition");
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
itemStackFieldAccessor = Reflection.getField(blockPlaceClass, NMSUtils.nmsItemStackClass, 0);
blockPositionAccessor = Reflection.getField(blockPlaceClass, blockPositionClass, 1);
blockPositionXYZInvoker[0] = Reflection.getMethod(blockPositionClass.getSuperclass(), "getX");
blockPositionXYZInvoker[1] = Reflection.getMethod(blockPositionClass.getSuperclass(), "getY");
blockPositionXYZInvoker[2] = Reflection.getMethod(blockPositionClass.getSuperclass(), "getZ");
}
}
@@ -7,18 +7,36 @@ import org.bukkit.Material;
import org.bukkit.block.Block;
import org.bukkit.entity.Player;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.HashSet;
final class WrappedPacketInBlockPlace_1_9 extends WrappedPacket {
private Block block;
private static Method getTargetBlockMethod;
public WrappedPacketInBlockPlace_1_9(final Player player, final Object packet) {
super(player, packet);
}
protected static void initStatic() {
try {
getTargetBlockMethod = Player.class.getMethod("getTargetBlock", HashSet.class, int.class);
} catch (NoSuchMethodException e) {
e.printStackTrace();
}
}
@Override
protected void setup() {
this.block = getPlayer().getTargetBlock((HashSet<Material>)null, 3);
try {
this.block = (Block) getTargetBlockMethod.invoke(getPlayer(), null, 3);
} catch (IllegalAccessException e) {
e.printStackTrace();
} catch (InvocationTargetException e) {
e.printStackTrace();
}
}
@@ -30,14 +48,5 @@ final class WrappedPacketInBlockPlace_1_9 extends WrappedPacket {
return block;
}
private static Class<?> blockPlaceClass_1_9;
protected static void initStatic() {
try {
blockPlaceClass_1_9 = NMSUtils.getNMSClass("PacketPlayInUseItem");
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
}
}
@@ -7,28 +7,7 @@ import io.github.retrooper.packetevents.utils.NMSUtils;
import java.lang.reflect.Field;
public final class WrappedPacketInChat extends WrappedPacket {
private String message;
public WrappedPacketInChat(Object packet) {
super(packet);
}
@Override
protected void setup() {
try {
final Object obj = field.get(packet);
this.message = obj.toString();
} catch (IllegalAccessException e) {
e.printStackTrace();
}
}
public String getMessage() {
return message;
}
private static Class<?> chatPacketClass;
private static Field field;
static {
@@ -48,10 +27,30 @@ public final class WrappedPacketInChat extends WrappedPacket {
field.setAccessible(true);
}
private String message;
public WrappedPacketInChat(Object packet) {
super(packet);
}
private static String getChatFieldName() {
if (version == ServerVersion.v_1_7_10) {
return "message";
}
return "a";
}
@Override
protected void setup() {
try {
final Object obj = field.get(packet);
this.message = obj.toString();
} catch (IllegalAccessException e) {
e.printStackTrace();
}
}
public String getMessage() {
return message;
}
}
@@ -10,6 +10,40 @@ import org.bukkit.entity.Entity;
import java.lang.reflect.Field;
public final class WrappedPacketInEntityAction extends WrappedPacket {
private static Class<?> entityActionClass;
@Nullable
private static Class<?> enumPlayerActionClass;
private static final Field[] fields = new Field[3];
@Nullable
private static Object[] enumPlayerActionConstants;
static {
try {
entityActionClass = NMSUtils.getNMSClass("PacketPlayInEntityAction");
if (version.isHigherThan(ServerVersion.v_1_7_10)) {
enumPlayerActionClass = NMSUtils.getNMSClass("PacketPlayInEntityAction$EnumPlayerAction");
}
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
try {
//ints in 1.7.10, EnumPlayerAction in 1.8+
fields[0] = entityActionClass.getDeclaredField("a");
fields[1] = entityActionClass.getDeclaredField("animation");
fields[2] = entityActionClass.getDeclaredField("c");
if (version.isHigherThan(ServerVersion.v_1_7_10)) {
enumPlayerActionConstants = enumPlayerActionClass.getEnumConstants();
}
} catch (NoSuchFieldException e) {
e.printStackTrace();
}
for (final Field f : fields) {
f.setAccessible(true);
}
}
private Entity entity;
private int entityId;
private PlayerAction action;
@@ -71,41 +105,4 @@ public final class WrappedPacketInEntityAction extends WrappedPacket {
public int getJumpBoost() {
return jumpBoost;
}
private static Class<?> entityActionClass;
@Nullable
private static Class<?> enumPlayerActionClass;
private static Field[] fields = new Field[3];
@Nullable
private static Object[] enumPlayerActionConstants;
static {
try {
entityActionClass = NMSUtils.getNMSClass("PacketPlayInEntityAction");
if (version.isHigherThan(ServerVersion.v_1_7_10)) {
enumPlayerActionClass = NMSUtils.getNMSClass("PacketPlayInEntityAction$EnumPlayerAction");
}
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
try {
//ints in 1.7.10, EnumPlayerAction in 1.8+
fields[0] = entityActionClass.getDeclaredField("a");
fields[1] = entityActionClass.getDeclaredField("animation");
fields[2] = entityActionClass.getDeclaredField("c");
if (version.isHigherThan(ServerVersion.v_1_7_10)) {
enumPlayerActionConstants = enumPlayerActionClass.getEnumConstants();
}
} catch (NoSuchFieldException e) {
e.printStackTrace();
}
for (final Field f : fields) {
f.setAccessible(true);
}
}
}
@@ -8,6 +8,38 @@ import io.github.retrooper.packetevents.utils.NMSUtils;
import java.lang.reflect.Field;
public class WrappedPacketInFlying extends WrappedPacket {
private static Class<?> flyingClass;
private static final Field[] fields = new Field[8]; //x, y, z, yaw pitch, onGround, isPositionPacket, isLookPacket
static {
try {
flyingClass = NMSUtils.getNMSClass("PacketPlayInFlying");
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
try {
fields[0] = flyingClass.getDeclaredField("x");
fields[1] = flyingClass.getDeclaredField("y");
fields[2] = flyingClass.getDeclaredField("z");
fields[3] = flyingClass.getDeclaredField("yaw");
fields[4] = flyingClass.getDeclaredField("pitch");
fields[5] = flyingClass.getDeclaredField(getOnGroundFieldName());
fields[6] = flyingClass.getDeclaredField("hasPos");
fields[7] = flyingClass.getDeclaredField("hasLook");
} catch (NoSuchFieldException e) {
e.printStackTrace();
}
for (Field f : fields) {
if (f != null) {
f.setAccessible(true);
}
}
}
private double x;
private double y;
private double z;
@@ -21,6 +53,13 @@ public class WrappedPacketInFlying extends WrappedPacket {
super(packet);
}
private static String getOnGroundFieldName() {
if (version == ServerVersion.v_1_7_10) {
return "g";
}
return "f";
}
@Override
protected void setup() {
try {
@@ -40,38 +79,6 @@ public class WrappedPacketInFlying extends WrappedPacket {
}
}
public static class WrappedPacketInPosition extends WrappedPacketInFlying {
public WrappedPacketInPosition(Object packet) {
super(packet);
}
@Override
public boolean isPosition() {
return true;
}
@Override
public boolean isLook() {
return false;
}
}
public static class WrappedPacketInPosition_Look extends WrappedPacketInFlying {
public WrappedPacketInPosition_Look(Object packet) {
super(packet);
}
@Override
public boolean isLook() {
return true;
}
@Override
public boolean isPosition() {
return false;
}
}
public final double getX() {
return x;
}
@@ -104,44 +111,36 @@ public class WrappedPacketInFlying extends WrappedPacket {
return isLook;
}
private static Class<?> flyingClass;
private static Field[] fields = new Field[8]; //x, y, z, yaw pitch, onGround, isPositionPacket, isLookPacket
static {
try {
flyingClass = NMSUtils.getNMSClass("PacketPlayInFlying");
} catch (ClassNotFoundException e) {
e.printStackTrace();
public static class WrappedPacketInPosition extends WrappedPacketInFlying {
public WrappedPacketInPosition(Object packet) {
super(packet);
}
try {
fields[0] = flyingClass.getDeclaredField("x");
fields[1] = flyingClass.getDeclaredField("y");
fields[2] = flyingClass.getDeclaredField("z");
fields[3] = flyingClass.getDeclaredField("yaw");
fields[4] = flyingClass.getDeclaredField("pitch");
fields[5] = flyingClass.getDeclaredField(getOnGroundFieldName());
fields[6] = flyingClass.getDeclaredField("hasPos");
fields[7] = flyingClass.getDeclaredField("hasLook");
} catch (NoSuchFieldException e) {
e.printStackTrace();
@Override
public boolean isPosition() {
return true;
}
for (Field f : fields) {
if (f != null) {
f.setAccessible(true);
}
@Override
public boolean isLook() {
return false;
}
}
private static String getOnGroundFieldName() {
if (version == ServerVersion.v_1_7_10) {
return "g";
public static class WrappedPacketInPosition_Look extends WrappedPacketInFlying {
public WrappedPacketInPosition_Look(Object packet) {
super(packet);
}
@Override
public boolean isLook() {
return true;
}
@Override
public boolean isPosition() {
return false;
}
return "f";
}
}
@@ -7,12 +7,31 @@ import io.github.retrooper.packetevents.utils.NMSUtils;
import java.lang.reflect.Field;
public final class WrappedPacketInKeepAlive extends WrappedPacket {
public WrappedPacketInKeepAlive(final Object packet) {
super(packet);
private static Class<?> keepAliveClass;
//1.7.10->1.12.2 has int field "a", rest as long field "a"
private static Field idField;
static {
try {
keepAliveClass = NMSUtils.getNMSClass("PacketPlayInKeepAlive");
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
try {
idField = keepAliveClass.getDeclaredField("a");
idField.setAccessible(true);
} catch (NoSuchFieldException e) {
e.printStackTrace();
}
}
private long id;
public WrappedPacketInKeepAlive(final Object packet) {
super(packet);
}
@Override
protected void setup() {
try {
@@ -35,24 +54,4 @@ public final class WrappedPacketInKeepAlive extends WrappedPacket {
public long getId() {
return id;
}
private static Class<?> keepAliveClass;
//1.7.10->1.12.2 has int field "a", rest as long field "a"
private static Field idField;
static {
try {
keepAliveClass = NMSUtils.getNMSClass("PacketPlayInKeepAlive");
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
try {
idField = keepAliveClass.getDeclaredField("a");
idField.setAccessible(true);
} catch (NoSuchFieldException e) {
e.printStackTrace();
}
}
}
@@ -0,0 +1,51 @@
package io.github.retrooper.packetevents.packetwrappers.in.transaction;
import io.github.retrooper.packetevents.packetwrappers.api.WrappedPacket;
import io.github.retrooper.packetevents.reflectionutils.Reflection;
import io.github.retrooper.packetevents.utils.NMSUtils;
public final class WrappedPacketInTransaction extends WrappedPacket {
private int windowId;
private short actionNumber;
private boolean accepted;
public WrappedPacketInTransaction(final Object packet) {
super(packet);
}
@Override
protected void setup() {
this.windowId = windowIdAccessor.get(packet);
this.actionNumber = actionNumberAccessor.get(packet);
this.accepted = acceptedAccessor.get(packet);
}
public int getWindowId() {
return windowId;
}
public short getActionNumber() {
return actionNumber;
}
public boolean isAccepted() {
return accepted;
}
private static Class<?> packetClass;
private static final Reflection.FieldAccessor<Integer> windowIdAccessor;
private static final Reflection.FieldAccessor<Short> actionNumberAccessor;
private static final Reflection.FieldAccessor<Boolean> acceptedAccessor;
static {
try {
packetClass = NMSUtils.getNMSClass("PacketPlayInTransaction");
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
windowIdAccessor = Reflection.getField(packetClass, int.class, 0);
actionNumberAccessor = Reflection.getField(packetClass, short.class, 0);
acceptedAccessor= Reflection.getField(packetClass, boolean.class, 0);
}
}
@@ -8,46 +8,8 @@ import org.bukkit.entity.Entity;
import java.lang.reflect.Field;
public final class WrappedPacketInUseEntity extends WrappedPacket {
private int entityId;
private Entity entity;
private EntityUseAction action;
public WrappedPacketInUseEntity(final Object packet) {
super(packet);
}
@Override
protected void setup() {
try {
this.entityId = fields[0].getInt(packet);
this.entity = NMSUtils.getEntityById(this.entityId);
final Object useActionEnum = fields[1].get(packet);
this.action = EntityUseAction.valueOf(useActionEnum.toString());
} catch (IllegalAccessException e) {
e.printStackTrace();
}
}
public Entity getEntity() {
return entity;
}
public int getEntityId() {
return entityId;
}
public EntityUseAction getAction() {
return action;
}
private static Class<?> useEntityClass;
private static Class<?> entityClass;
private static Field[] fields = new Field[2];
private static Class<?> useEntityClass, entityClass;
private static final Field[] fields = new Field[2];
static {
@@ -75,4 +37,36 @@ public final class WrappedPacketInUseEntity extends WrappedPacket {
}
}
private int entityId;
private Entity entity;
private EntityUseAction action;
public WrappedPacketInUseEntity(final Object packet) {
super(packet);
}
@Override
protected void setup() {
try {
this.entityId = fields[0].getInt(packet);
this.entity = NMSUtils.getEntityById(this.entityId);
final Object useActionEnum = fields[1].get(packet);
this.action = EntityUseAction.valueOf(useActionEnum.toString());
} catch (IllegalAccessException e) {
e.printStackTrace();
}
}
public Entity getEntity() {
return entity;
}
public int getEntityId() {
return entityId;
}
public EntityUseAction getAction() {
return action;
}
}
@@ -1,55 +0,0 @@
package io.github.retrooper.packetevents.packetwrappers.login;
import io.github.retrooper.packetevents.packetwrappers.api.WrappedPacket;
import io.github.retrooper.packetevents.tinyprotocol.Reflection;
import io.github.retrooper.packetevents.tinyprotocol.Reflection.FieldAccessor;
import io.github.retrooper.packetevents.utils.NMSUtils;
public final class WrappedPacketLoginHandshake extends WrappedPacket {
private int protocolVersion, port;
private String hostname;
public WrappedPacketLoginHandshake(final Object packet) {
super(packet);
}
@Override
protected void setup() {
final Object protocolVersionObj = fields[0].get(packet);
final Object hostNameObj = fields[1].get(packet);
final Object portObj = fields[2].get(packet);
this.protocolVersion = (int)protocolVersionObj;
this.hostname = hostNameObj.toString();
this.port = (int)portObj;
}
public int getProtocolVersion() {
return protocolVersion;
}
public String getHostname() {
return hostname;
}
public int getPort() {
return port;
}
private static Class<?> loginHandshakeClass;
private static FieldAccessor<?>[] fields = new FieldAccessor[3];
static {
try {
loginHandshakeClass = NMSUtils.getNMSClass("PacketHandshakingInSetProtocol");
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
fields[0] = Reflection.getField(loginHandshakeClass, int.class, 0);
fields[1] = Reflection.getField(loginHandshakeClass, String.class, 0);
fields[2] = Reflection.getField(loginHandshakeClass, int.class, 1);
}
}
@@ -1,41 +0,0 @@
package io.github.retrooper.packetevents.packetwrappers.login;
import io.github.retrooper.packetevents.packetwrappers.api.WrappedPacket;
import io.github.retrooper.packetevents.tinyprotocol.Reflection;
import io.github.retrooper.packetevents.utils.NMSUtils;
public final class WrappedPacketLoginInEncryptionBegin extends WrappedPacket {
private byte[] publicKey, verifyToken;
public WrappedPacketLoginInEncryptionBegin(final Object packet) {
super(packet);
}
@Override
protected void setup() {
this.publicKey = fields[0].get(packet);
this.verifyToken = fields[1].get(packet);
}
public byte[] getPublicKey() {
return publicKey;
}
public byte[] getVerifyToken() {
return verifyToken;
}
private static Class<?> packetClass;
private static final Reflection.FieldAccessor<byte[]>[] fields = new Reflection.FieldAccessor[2];
static {
try {
packetClass = NMSUtils.getNMSClass("PacketLoginInEncryptionBegin");
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
fields[0] = Reflection.getField(packetClass, byte[].class, 0);
fields[1] = Reflection.getField(packetClass, byte[].class, 1);
}
}
@@ -1,58 +0,0 @@
package io.github.retrooper.packetevents.packetwrappers.login;
import io.github.retrooper.packetevents.packetwrappers.api.WrappedPacket;
import io.github.retrooper.packetevents.tinyprotocol.Reflection;
import io.github.retrooper.packetevents.utils.NMSUtils;
import java.security.PublicKey;
public final class WrappedPacketLoginOutEncryptionBegin extends WrappedPacket {
private String encodedString;
private PublicKey encodedKey;
private byte[] byteArray;
public WrappedPacketLoginOutEncryptionBegin(final Object packet) {
super(packet);
}
@Override
protected void setup() {
//string - a (encodedstring)
//public key - b (encoded)
//byte array - c(byte array)
this.encodedString = fields[0].get(packet).toString();
this.encodedKey = (PublicKey) fields[1].get(packet);
this.byteArray = (byte[]) fields[2].get(packet);
}
public String getEncodedString() {
return encodedString;
}
public PublicKey getEncodedKey() {
return encodedKey;
}
public byte[] getByteArray() {
return byteArray;
}
private static Class<?> packetClass;
private static final Reflection.FieldAccessor<?>[] fields = new Reflection.FieldAccessor[3];
static {
try {
packetClass = NMSUtils.getNMSClass("PacketLoginOutEncryptionBegin");
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
fields[0] = Reflection.getField(packetClass, String.class, 0);
fields[1] = Reflection.getField(packetClass, PublicKey.class, 1);
fields[2] = Reflection.getField(packetClass, byte[].class, 2);
}
}
@@ -1,36 +0,0 @@
package io.github.retrooper.packetevents.packetwrappers.login;
import io.github.retrooper.packetevents.mojang.GameProfile;
import io.github.retrooper.packetevents.packetwrappers.api.WrappedPacket;
import io.github.retrooper.packetevents.tinyprotocol.Reflection;
import io.github.retrooper.packetevents.utils.NMSUtils;
public final class WrappedPacketLoginStart extends WrappedPacket {
private GameProfile gameProfile;
public WrappedPacketLoginStart(final Object packet) {
super(packet);
}
@Override
protected void setup() {
com.mojang.authlib.GameProfile gp = gameProfileAccessor.get(packet);
this.gameProfile = new GameProfile(gp.getId(), gp.getName());
}
public GameProfile getGameProfile() {
return gameProfile;
}
private static Class<?> packetClass;
private static final Reflection.FieldAccessor<com.mojang.authlib.GameProfile> gameProfileAccessor;
static {
try {
packetClass = NMSUtils.getNMSClass("PacketLoginInStart");
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
gameProfileAccessor = Reflection.getField(packetClass, com.mojang.authlib.GameProfile.class, 0);
}
}
@@ -1,36 +0,0 @@
package io.github.retrooper.packetevents.packetwrappers.login;
import io.github.retrooper.packetevents.packetwrappers.api.WrappedPacket;
import io.github.retrooper.packetevents.tinyprotocol.Reflection;
import io.github.retrooper.packetevents.utils.NMSUtils;
public final class WrappedPacketLoginStatusPing extends WrappedPacket {
private long number;
public WrappedPacketLoginStatusPing(final Object packet) {
super(packet);
}
@Override
protected void setup() {
this.number = numberAccessor.get(packet);
}
public long getNumber() {
return number;
}
private static Class<?> packetClass;
private static final Reflection.FieldAccessor<Long> numberAccessor;
static {
try {
packetClass = NMSUtils.getNMSClass("PacketStatusInPing");
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
numberAccessor = Reflection.getField(packetClass, long.class, 0);
}
}
@@ -0,0 +1,52 @@
package io.github.retrooper.packetevents.packetwrappers.out.abilities;
import io.github.retrooper.packetevents.reflectionutils.Reflection;
import io.github.retrooper.packetevents.utils.NMSUtils;
import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;
final class PlayerAbilitiesUtils {
public static Class<?> playerAbilitiesClass;
public static Constructor<?> playerAbilitiesConstructor;
private static final Reflection.FieldAccessor<Boolean>[] booleanFieldAccessors = new Reflection.FieldAccessor[4];
private static final Reflection.FieldAccessor<Float>[] floatFieldAccessors = new Reflection.FieldAccessor[2];
public static Object getPlayerAbilities(final boolean isVulnerable, final boolean isFlying, final boolean allowFlight, final boolean canBuildInstantly,
final float flySpeed, final float walkSpeed) throws IllegalAccessException, InvocationTargetException, InstantiationException {
final Object instance = playerAbilitiesConstructor.newInstance();
booleanFieldAccessors[0].set(instance, isVulnerable);
booleanFieldAccessors[1].set(instance, isFlying);
booleanFieldAccessors[2].set(instance, allowFlight);
booleanFieldAccessors[3].set(instance, canBuildInstantly);
floatFieldAccessors[0].set(instance, flySpeed);
floatFieldAccessors[1].set(instance, walkSpeed);
return instance;
}
static {
try {
playerAbilitiesClass = NMSUtils.getNMSClass("PlayerAbilities");
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
try {
playerAbilitiesConstructor = playerAbilitiesClass.getConstructor();
} catch (NoSuchMethodException e) {
e.printStackTrace();
}
for (byte i = 0; i < booleanFieldAccessors.length; i++) {
booleanFieldAccessors[i] = Reflection.getField(playerAbilitiesClass, boolean.class, i);
}
for (byte i = 0; i < floatFieldAccessors.length; i++) {
floatFieldAccessors[i] = Reflection.getField(playerAbilitiesClass, float.class, i);
}
}
}
@@ -0,0 +1,103 @@
package io.github.retrooper.packetevents.packetwrappers.out.abilities;
import io.github.retrooper.packetevents.packetwrappers.Sendable;
import io.github.retrooper.packetevents.packetwrappers.api.WrappedPacket;
import io.github.retrooper.packetevents.reflectionutils.Reflection;
import io.github.retrooper.packetevents.utils.NMSUtils;
import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;
public final class WrappedPacketOutAbilities extends WrappedPacket implements Sendable {
private boolean vulnerable, flying, allowFlight, instantBuild;
private float flySpeed, walkSpeed;
public WrappedPacketOutAbilities(final Object packet) {
super(packet);
}
public WrappedPacketOutAbilities(final boolean isVulnerable, final boolean isFlying, final boolean allowFlight, final boolean canBuildInstantly,
final float flySpeed, final float walkSpeed) {
super(null);
this.vulnerable = isVulnerable;
this.flying = isFlying;
this.allowFlight = allowFlight;
this.instantBuild = canBuildInstantly;
this.flySpeed = flySpeed;
this.walkSpeed = walkSpeed;
}
@Override
protected void setup() {
this.vulnerable = booleanFieldAccessors[0].get(packet);
this.flying = booleanFieldAccessors[1].get(packet);
this.allowFlight = booleanFieldAccessors[2].get(packet);
this.instantBuild = booleanFieldAccessors[3].get(packet);
this.flySpeed = floatFieldAccessors[0].get(packet);
this.walkSpeed = floatFieldAccessors[1].get(packet);
}
public boolean isVulnerable() {
return vulnerable;
}
public boolean isFlying() {
return flying;
}
public boolean isFlightAllowed() {
return allowFlight;
}
public boolean canInstantlyBuild() {
return instantBuild;
}
public float getFlySpeed() {
return flySpeed;
}
public float getWalkSpeed() {
return walkSpeed;
}
private static Class<?> packetClass;
private static Constructor<?> packetConstructor;
private static final Reflection.FieldAccessor<Boolean>[] booleanFieldAccessors = new Reflection.FieldAccessor[4];
private static final Reflection.FieldAccessor<Float>[] floatFieldAccessors = new Reflection.FieldAccessor[2];
static {
try {
packetClass = NMSUtils.getNMSClass("PacketPlayOutAbilities");
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
try {
packetConstructor = packetClass.getConstructor(PlayerAbilitiesUtils.playerAbilitiesClass);
} catch (NoSuchMethodException e) {
e.printStackTrace();
}
for (byte i = 0; i < booleanFieldAccessors.length; i++) {
booleanFieldAccessors[i] = Reflection.getField(packetClass, boolean.class, i);
}
for (byte i = 0; i < floatFieldAccessors.length; i++) {
floatFieldAccessors[i] = Reflection.getField(packetClass, float.class, i);
}
}
@Override
public Object asNMSPacket() {
try {
return packetConstructor.newInstance(PlayerAbilitiesUtils.getPlayerAbilities(vulnerable, flying, allowFlight, instantBuild, flySpeed, walkSpeed));
} catch (InstantiationException | InvocationTargetException | IllegalAccessException e) {
e.printStackTrace();
}
return null;
}
}
@@ -11,6 +11,36 @@ import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
public final class WrappedPacketOutAnimation extends WrappedPacket implements Sendable {
private static Class<?> animationClass, nmsEntityClass;
private static Constructor<?> animationConstructor;
private static final Field[] fields = new Field[2];
static {
try {
animationClass = NMSUtils.getNMSClass("PacketPlayOutAnimation");
nmsEntityClass = NMSUtils.getNMSClass("Entity");
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
try {
animationConstructor = animationClass.getConstructor(nmsEntityClass, int.class);
} catch (NoSuchMethodException e) {
e.printStackTrace();
}
try {
fields[0] = animationClass.getDeclaredField("a");
fields[1] = animationClass.getDeclaredField("b");
} catch (NoSuchFieldException e) {
e.printStackTrace();
}
for (final Field f : fields) {
f.setAccessible(true);
}
}
private Entity entity;
private int entityID;
private EntityAnimationType type;
@@ -52,7 +82,6 @@ public final class WrappedPacketOutAnimation extends WrappedPacket implements Se
return type;
}
@Override
public Object asNMSPacket() {
final Object nmsEntity = NMSUtils.getNMSEntity(this.entity);
@@ -64,35 +93,4 @@ public final class WrappedPacketOutAnimation extends WrappedPacket implements Se
}
return null;
}
private static Class<?> animationClass, nmsEntityClass;
private static Constructor<?> animationConstructor;
private static Field[] fields = new Field[2];
static {
try {
animationClass = NMSUtils.getNMSClass("PacketPlayOutAnimation");
nmsEntityClass = NMSUtils.getNMSClass("Entity");
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
try {
animationConstructor = animationClass.getConstructor(nmsEntityClass, int.class);
} catch (NoSuchMethodException e) {
e.printStackTrace();
}
try {
fields[0] = animationClass.getDeclaredField("a");
fields[1] = animationClass.getDeclaredField("b");
} catch (NoSuchFieldException e) {
e.printStackTrace();
}
for (final Field f : fields) {
f.setAccessible(true);
}
}
}
@@ -11,71 +11,9 @@ import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
public final class WrappedPacketOutChat extends WrappedPacket implements Sendable {
private String message;
public WrappedPacketOutChat(final Object packet) {
super(packet);
}
public WrappedPacketOutChat(final String message) {
super(null);
this.message = "{\"text\": \"" + message + "\"}";
}
@Override
protected void setup() {
//all fields are IChatBaseComponents, and named 'a'
try {
Object iChatBaseObj = iChatBaseField.get(packet);
Object contentString = getStringOfIChatBase.invoke(iChatBaseObj);
this.message = contentString.toString();
} catch (IllegalAccessException | InvocationTargetException e) {
e.printStackTrace();
}
}
@Override
public Object asNMSPacket() {
try {
return chatClassConstructor.newInstance(toIChatBaseComponent(this.message));
} catch (InstantiationException | InvocationTargetException | IllegalAccessException e) {
e.printStackTrace();
}
return null;
}
public static String toStringFromIChatBaseComponent(Object obj) {
try {
return getStringOfIChatBase.invoke(obj).toString();
} catch (IllegalAccessException | InvocationTargetException e) {
e.printStackTrace();
}
return null;
}
public static Object toIChatBaseComponent(String msg) {
try {
return serialize.invoke(null, msg);
} catch (IllegalAccessException | InvocationTargetException e) {
e.printStackTrace();
}
return null;
}
public String getMessage() {
return this.message;
}
private static Constructor<?> chatClassConstructor;
private static Class<?> chatClass, iChatBaseComponentClass, chatSerializerClass;
private static Field iChatBaseField;
private static Method serialize, getStringOfIChatBase;
static {
@@ -84,15 +22,14 @@ public final class WrappedPacketOutChat extends WrappedPacket implements Sendabl
iChatBaseComponentClass = NMSUtils.getNMSClass("IChatBaseComponent");
//In 1.8.3+ the ChatSerializer class is declared in the IChatBaseComponent class, so we have to handle tahat
if(version.isHigherThan(ServerVersion.v_1_8)) {
for(final Class<?> cls : iChatBaseComponentClass.getDeclaredClasses()) {
if(cls.getSimpleName().equals("ChatSerializer")) {
if (version.isHigherThan(ServerVersion.v_1_8)) {
for (final Class<?> cls : iChatBaseComponentClass.getDeclaredClasses()) {
if (cls.getSimpleName().equals("ChatSerializer")) {
chatSerializerClass = cls;
break;
}
}
}
else {
} else {
chatSerializerClass = NMSUtils.getNMSClass("ChatSerializer");
}
} catch (ClassNotFoundException e) {
@@ -121,6 +58,35 @@ public final class WrappedPacketOutChat extends WrappedPacket implements Sendabl
}
private String message;
public WrappedPacketOutChat(final Object packet) {
super(packet);
}
public WrappedPacketOutChat(final String message) {
super(null);
this.message = "{\"text\": \"" + message + "\"}";
}
public static String toStringFromIChatBaseComponent(Object obj) {
try {
return getStringOfIChatBase.invoke(obj).toString();
} catch (IllegalAccessException | InvocationTargetException e) {
e.printStackTrace();
}
return null;
}
public static Object toIChatBaseComponent(String msg) {
try {
return serialize.invoke(null, msg);
} catch (IllegalAccessException | InvocationTargetException e) {
e.printStackTrace();
}
return null;
}
private static String getTextMethodName() {
//1.7.10
if (version.isLowerThan(ServerVersion.v_1_8)) {
@@ -129,4 +95,34 @@ public final class WrappedPacketOutChat extends WrappedPacket implements Sendabl
return "getText";
}
}
@Override
protected void setup() {
//all fields are IChatBaseComponents, and named 'a'
try {
Object iChatBaseObj = iChatBaseField.get(packet);
Object contentString = getStringOfIChatBase.invoke(iChatBaseObj);
this.message = contentString.toString();
} catch (IllegalAccessException | InvocationTargetException e) {
e.printStackTrace();
}
}
@Override
public Object asNMSPacket() {
try {
return chatClassConstructor.newInstance(toIChatBaseComponent(this.message));
} catch (InstantiationException | InvocationTargetException | IllegalAccessException e) {
e.printStackTrace();
}
return null;
}
public String getMessage() {
return this.message;
}
}
@@ -11,6 +11,58 @@ import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
public final class WrappedPacketOutEntityVelocity extends WrappedPacket implements Sendable {
private static Constructor<?> velocityConstructor, vec3dConstructor;
private static Class<?> velocityClass, vec3dClass;
private static final Field[] fields = new Field[4];
/**
* Velocity Constructor parameter types:
* 1.7.10->1.13.2 use int, double, double, double style,
* 1.14+ use int, Vec3D style
*/
static {
try {
velocityClass = NMSUtils.getNMSClass("PacketPlayOutEntityVelocity");
if (version.isHigherThan(ServerVersion.v_1_13_2)) {
vec3dClass = NMSUtils.getNMSClass("Vec3D");
}
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
try {
if (version.isHigherThan(ServerVersion.v_1_13_2)) {
velocityConstructor = velocityClass.getConstructor(int.class, vec3dClass);
//vec3d constructor
vec3dConstructor = vec3dClass.getConstructor(double.class, double.class, double.class);
} else {
velocityConstructor = velocityClass.getConstructor(int.class, double.class, double.class, double.class);
}
} catch (NoSuchMethodException e) {
e.printStackTrace();
}
try {
//entity id
fields[0] = velocityClass.getDeclaredField("a");
//x
fields[1] = velocityClass.getDeclaredField("b");
//y
fields[2] = velocityClass.getDeclaredField("c");
//z
fields[3] = velocityClass.getDeclaredField("d");
} catch (NoSuchFieldException e) {
e.printStackTrace();
}
for (final Field f : fields) {
f.setAccessible(true);
}
}
private Entity entity;
private int entityId;
private double velocityX, velocityY, velocityZ;
@@ -87,59 +139,4 @@ public final class WrappedPacketOutEntityVelocity extends WrappedPacket implemen
return null;
}
private static Constructor<?> velocityConstructor, vec3dConstructor;
private static Class<?> velocityClass, vec3dClass;
private static Field[] fields = new Field[4];
/**
* Velocity Constructor parameter types:
* 1.7.10->1.13.2 use int, double, double, double style,
* 1.14+ use int, Vec3D style
*/
static {
try {
velocityClass = NMSUtils.getNMSClass("PacketPlayOutEntityVelocity");
if (version.isHigherThan(ServerVersion.v_1_13_2)) {
vec3dClass = NMSUtils.getNMSClass("Vec3D");
}
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
try {
if (version.isHigherThan(ServerVersion.v_1_13_2)) {
velocityConstructor = velocityClass.getConstructor(int.class, vec3dClass);
//vec3d constructor
vec3dConstructor = vec3dClass.getConstructor(double.class, double.class, double.class);
} else {
velocityConstructor = velocityClass.getConstructor(int.class, double.class, double.class, double.class);
}
} catch (NoSuchMethodException e) {
e.printStackTrace();
}
try {
//entity id
fields[0] = velocityClass.getDeclaredField("a");
//x
fields[1] = velocityClass.getDeclaredField("b");
//y
fields[2] = velocityClass.getDeclaredField("c");
//z
fields[3] = velocityClass.getDeclaredField("d");
} catch (NoSuchFieldException e) {
e.printStackTrace();
}
for (final Field f : fields) {
f.setAccessible(true);
}
}
}
@@ -3,13 +3,33 @@ package io.github.retrooper.packetevents.packetwrappers.out.kickdisconnect;
import io.github.retrooper.packetevents.packetwrappers.Sendable;
import io.github.retrooper.packetevents.packetwrappers.api.WrappedPacket;
import io.github.retrooper.packetevents.packetwrappers.out.chat.WrappedPacketOutChat;
import io.github.retrooper.packetevents.tinyprotocol.Reflection;
import io.github.retrooper.packetevents.reflectionutils.Reflection;
import io.github.retrooper.packetevents.utils.NMSUtils;
import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;
public final class WrappedPacketOutKickDisconnect extends WrappedPacket implements Sendable {
private static final Reflection.FieldAccessor<?> iChatBaseComponentAccessor;
private static Class<?> packetClass, iChatBaseComponentClass;
private static Constructor<?> kickDisconnectConstructor;
static {
try {
packetClass = NMSUtils.getNMSClass("PacketPlayOutKickDisconnect");
iChatBaseComponentClass = NMSUtils.getNMSClass("IChatBaseComponent");
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
try {
kickDisconnectConstructor = packetClass.getConstructor(iChatBaseComponentClass);
} catch (NoSuchMethodException e) {
e.printStackTrace();
}
iChatBaseComponentAccessor = Reflection.getField(packetClass, iChatBaseComponentClass, 0);
}
private String kickMessage;
public WrappedPacketOutKickDisconnect(final Object packet) {
@@ -39,26 +59,4 @@ public final class WrappedPacketOutKickDisconnect extends WrappedPacket implemen
}
return null;
}
private static Class<?> packetClass, iChatBaseComponentClass;
private static Constructor<?> kickDisconnectConstructor;
private static final Reflection.FieldAccessor<?> iChatBaseComponentAccessor;
static {
try {
packetClass = NMSUtils.getNMSClass("PacketPlayOutKickDisconnect");
iChatBaseComponentClass = NMSUtils.getNMSClass("IChatBaseComponent");
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
try {
kickDisconnectConstructor = packetClass.getConstructor(iChatBaseComponentClass);
} catch (NoSuchMethodException e) {
e.printStackTrace();
}
iChatBaseComponentAccessor = Reflection.getField(packetClass, iChatBaseComponentClass, 0);
}
}
@@ -0,0 +1,80 @@
package io.github.retrooper.packetevents.packetwrappers.out.transaction;
import io.github.retrooper.packetevents.packetwrappers.Sendable;
import io.github.retrooper.packetevents.packetwrappers.api.WrappedPacket;
import io.github.retrooper.packetevents.reflectionutils.Reflection;
import io.github.retrooper.packetevents.utils.NMSUtils;
import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;
public class WrappedPacketOutTransaction extends WrappedPacket implements Sendable {
private int windowId;
private short actionNumber;
private boolean accepted;
public WrappedPacketOutTransaction(final Object packet) {
super(packet);
}
public WrappedPacketOutTransaction(final int windowId, final short actionNumber, final boolean accepted) {
super(null);
this.windowId = windowId;
this.actionNumber = actionNumber;
this.accepted = accepted;
}
@Override
protected void setup() {
this.windowId = windowIdAccessor.get(packet);
this.actionNumber = actionNumberAccessor.get(packet);
this.accepted = acceptedAccessor.get(packet);
}
public int getWindowId() {
return windowId;
}
public short getActionNumber() {
return actionNumber;
}
public boolean isAccepted() {
return accepted;
}
@Override
public Object asNMSPacket() {
try {
return packetConstructor.newInstance(windowId, actionNumber, accepted);
} catch (InstantiationException | IllegalAccessException | InvocationTargetException e) {
e.printStackTrace();
}
return null;
}
private static Class<?> packetClass;
private static Constructor<?> packetConstructor;
private static final Reflection.FieldAccessor<Integer> windowIdAccessor;
private static final Reflection.FieldAccessor<Short> actionNumberAccessor;
private static final Reflection.FieldAccessor<Boolean> acceptedAccessor;
static {
try {
packetClass = NMSUtils.getNMSClass("PacketPlayOutTransaction");
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
try {
packetConstructor = packetClass.getConstructor(int.class, short.class, boolean.class);
} catch (NoSuchMethodException e) {
e.printStackTrace();
}
windowIdAccessor = Reflection.getField(packetClass, int.class, 0);
actionNumberAccessor = Reflection.getField(packetClass, short.class, 0);
acceptedAccessor= Reflection.getField(packetClass, boolean.class, 0);
}
}
@@ -0,0 +1,85 @@
package io.github.retrooper.packetevents.packetwrappers.out.updatehealth;
import io.github.retrooper.packetevents.packetwrappers.Sendable;
import io.github.retrooper.packetevents.packetwrappers.api.WrappedPacket;
import io.github.retrooper.packetevents.reflectionutils.Reflection;
import io.github.retrooper.packetevents.utils.NMSUtils;
import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;
public final class WrappedPacketOutUpdateHealth extends WrappedPacket implements Sendable {
private float health, foodSaturation;
private int food;
public WrappedPacketOutUpdateHealth(final Object packet) {
super(packet);
}
/**
* See https://wiki.vg/Protocol#Update_Health
* @param health
* @param food
* @param foodSaturation
*/
public WrappedPacketOutUpdateHealth(final float health, final int food, final float foodSaturation) {
super(null);
this.health= health;
this.food = food;
this.foodSaturation = foodSaturation;
}
@Override
protected void setup() {
this.health = healthAccessor.get(packet);
this.foodSaturation = foodSaturationAccessor.get(packet);
this.food = foodAccessor.get(packet);
}
public float getHealth() {
return health;
}
public float getFoodSaturation() {
return foodSaturation;
}
public int getFood() {
return food;
}
@Override
public Object asNMSPacket() {
try {
return packetConstructor.newInstance(health, food, foodSaturation);
} catch (InstantiationException | IllegalAccessException | InvocationTargetException e) {
e.printStackTrace();
}
return null;
}
private static Class<?> packetClass;
private static Constructor<?> packetConstructor;
private static final Reflection.FieldAccessor<Float> healthAccessor, foodSaturationAccessor;
private static final Reflection.FieldAccessor<Integer> foodAccessor;
static {
try {
packetClass = NMSUtils.getNMSClass("PacketPlayOutUpdateHealth");
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
try {
packetConstructor = packetClass.getConstructor(float.class, int.class, float.class);
} catch (NoSuchMethodException e) {
e.printStackTrace();
}
healthAccessor = Reflection.getField(packetClass, float.class, 0);
foodSaturationAccessor = Reflection.getField(packetClass, float.class, 1);
foodAccessor = Reflection.getField(packetClass, int.class, 0);
}
}
@@ -1,4 +1,4 @@
package io.github.retrooper.packetevents.tinyprotocol;
package io.github.retrooper.packetevents.reflectionutils;
import org.bukkit.Bukkit;
@@ -15,72 +15,12 @@ import java.util.regex.Pattern;
* @author Kristian
*/
public final class Reflection {
/**
* An interface for invoking a specific constructor.
*/
public interface ConstructorInvoker {
/**
* Invoke a constructor for a specific class.
*
* @param arguments - the arguments to pass to the constructor.
* @return The constructed object.
*/
Object invoke(Object... arguments);
}
/**
* An interface for invoking a specific method.
*/
public interface MethodInvoker {
/**
* Invoke a method on a specific target object.
*
* @param target - the target object, or NULL for a static method.
* @param arguments - the arguments to pass to the method.
* @return The return value, or NULL if is void.
*/
Object invoke(Object target, Object... arguments);
}
/**
* An interface for retrieving the field content.
*
* @param <T> - field type.
*/
public interface FieldAccessor<T> {
/**
* Retrieve the content of a field.
*
* @param target - the target object, or NULL for a static field.
* @return The value of the field.
*/
T get(Object target);
/**
* Set the content of a field.
*
* @param target - the target object, or NULL for a static field.
* @param value - the new value of the field.
*/
void set(Object target, Object value);
/**
* Determine if the given object has this field.
*
* @param target - the object to test.
* @return TRUE if it does, FALSE otherwise.
*/
boolean hasField(Object target);
}
// Deduce the net.minecraft.server.v* package
private static String OBC_PREFIX = Bukkit.getServer().getClass().getPackage().getName();
private static String NMS_PREFIX = OBC_PREFIX.replace("org.bukkit.craftbukkit", "net.minecraft.server");
private static String VERSION = OBC_PREFIX.replace("org.bukkit.craftbukkit", "").replace(".", "");
private static final String OBC_PREFIX = Bukkit.getServer().getClass().getPackage().getName();
private static final String NMS_PREFIX = OBC_PREFIX.replace("org.bukkit.craftbukkit", "net.minecraft.server");
private static final String VERSION = OBC_PREFIX.replace("org.bukkit.craftbukkit", "").replace(".", "");
// Variable replacement
private static Pattern MATCH_VARIABLE = Pattern.compile("\\{([^\\}]+)\\}");
private static final Pattern MATCH_VARIABLE = Pattern.compile("\\{([^\\}]+)\\}");
private Reflection() {
// Seal class
}
@@ -88,8 +28,8 @@ public final class Reflection {
/**
* Retrieve a field accessor for a specific field type and name.
*
* @param target - the target type.
* @param name - the name of the field, or NULL to ignore.
* @param target - the target type.
* @param name - the name of the field, or NULL to ignore.
* @param fieldType - a compatible field type.
* @return The field accessor.
*/
@@ -101,7 +41,7 @@ public final class Reflection {
* Retrieve a field accessor for a specific field type and name.
*
* @param className - lookup name of the class, see {@link #getClass(String)}.
* @param name - the name of the field, or NULL to ignore.
* @param name - the name of the field, or NULL to ignore.
* @param fieldType - a compatible field type.
* @return The field accessor.
*/
@@ -112,9 +52,9 @@ public final class Reflection {
/**
* Retrieve a field accessor for a specific field type and name.
*
* @param target - the target type.
* @param target - the target type.
* @param fieldType - a compatible field type.
* @param index - the number of compatible fields to skip.
* @param index - the number of compatible fields to skip.
* @return The field accessor.
*/
public static <T> FieldAccessor<T> getField(Class<?> target, Class<T> fieldType, int index) {
@@ -126,7 +66,7 @@ public final class Reflection {
*
* @param className - lookup name of the class, see {@link #getClass(String)}.
* @param fieldType - a compatible field type.
* @param index - the number of compatible fields to skip.
* @param index - the number of compatible fields to skip.
* @return The field accessor.
*/
public static <T> FieldAccessor<T> getField(String className, Class<T> fieldType, int index) {
@@ -180,9 +120,9 @@ public final class Reflection {
/**
* Search for the first publicly and privately defined method of the given name and parameter count.
*
* @param className - lookup name of the class, see {@link #getClass(String)}.
* @param className - lookup name of the class, see {@link #getClass(String)}.
* @param methodName - the method name, or NULL to skip.
* @param params - the expected parameters.
* @param params - the expected parameters.
* @return An object that invokes this specific method.
* @throws IllegalStateException If we cannot find this method.
*/
@@ -193,9 +133,9 @@ public final class Reflection {
/**
* Search for the first publicly and privately defined method of the given name and parameter count.
*
* @param clazz - a class to start with.
* @param clazz - a class to start with.
* @param methodName - the method name, or NULL to skip.
* @param params - the expected parameters.
* @param params - the expected parameters.
* @return An object that invokes this specific method.
* @throws IllegalStateException If we cannot find this method.
*/
@@ -206,10 +146,10 @@ public final class Reflection {
/**
* Search for the first publicly and privately defined method of the given name and parameter count.
*
* @param clazz - a class to start with.
* @param clazz - a class to start with.
* @param methodName - the method name, or NULL to skip.
* @param returnType - the expected return type, or NULL to ignore.
* @param params - the expected parameters.
* @param params - the expected parameters.
* @return An object that invokes this specific method.
* @throws IllegalStateException If we cannot find this method.
*/
@@ -246,7 +186,7 @@ public final class Reflection {
* Search for the first publically and privately defined constructor of the given name and parameter count.
*
* @param className - lookup name of the class, see {@link #getClass(String)}.
* @param params - the expected parameters.
* @param params - the expected parameters.
* @return An object that invokes this constructor.
* @throws IllegalStateException If we cannot find this method.
*/
@@ -257,7 +197,7 @@ public final class Reflection {
/**
* Search for the first publically and privately defined constructor of the given name and parameter count.
*
* @param clazz - a class to start with.
* @param clazz - a class to start with.
* @param params - the expected parameters.
* @return An object that invokes this constructor.
* @throws IllegalStateException If we cannot find this method.
@@ -291,12 +231,12 @@ public final class Reflection {
* This is useful when looking up fields by a NMS or OBC type.
* <p>
*
* @see {@link #getClass()} for more information.
* @param lookupName - the class name with variables.
* @return The class.
* @see {@link #getClass()} for more information.
*/
public static Class<Object> getUntypedClass(String lookupName) {
@SuppressWarnings({ "rawtypes", "unchecked" })
@SuppressWarnings({"rawtypes", "unchecked"})
Class<Object> clazz = (Class) getClass(lookupName);
return clazz;
}
@@ -400,4 +340,62 @@ public final class Reflection {
matcher.appendTail(output);
return output.toString();
}
/**
* An interface for invoking a specific constructor.
*/
public interface ConstructorInvoker {
/**
* Invoke a constructor for a specific class.
*
* @param arguments - the arguments to pass to the constructor.
* @return The constructed object.
*/
Object invoke(Object... arguments);
}
/**
* An interface for invoking a specific method.
*/
public interface MethodInvoker {
/**
* Invoke a method on a specific target object.
*
* @param target - the target object, or NULL for a static method.
* @param arguments - the arguments to pass to the method.
* @return The return value, or NULL if is void.
*/
Object invoke(Object target, Object... arguments);
}
/**
* An interface for retrieving the field content.
*
* @param <T> - field type.
*/
public interface FieldAccessor<T> {
/**
* Retrieve the content of a field.
*
* @param target - the target object, or NULL for a static field.
* @return The value of the field.
*/
T get(Object target);
/**
* Set the content of a field.
*
* @param target - the target object, or NULL for a static field.
* @param value - the new value of the field.
*/
void set(Object target, Object value);
/**
* Determine if the given object has this field.
*
* @param target - the object to test.
* @return TRUE if it does, FALSE otherwise.
*/
boolean hasField(Object target);
}
}
@@ -1,544 +0,0 @@
/*
* This file is part of Hawk Anticheat.
* Copyright (C) 2018 Hawk Development Team
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package io.github.retrooper.packetevents.tinyprotocol;
import io.github.retrooper.packetevents.PacketEvents;
import io.github.retrooper.packetevents.event.impl.PacketSendEvent;
import io.github.retrooper.packetevents.event.impl.PlayerInjectEvent;
import io.github.retrooper.packetevents.event.impl.PlayerUninjectEvent;
import io.github.retrooper.packetevents.tinyprotocol.Reflection.FieldAccessor;
import io.github.retrooper.packetevents.tinyprotocol.Reflection.MethodInvoker;
import net.minecraft.util.com.google.common.collect.Lists;
import net.minecraft.util.com.google.common.collect.MapMaker;
import net.minecraft.util.com.mojang.authlib.GameProfile;
import net.minecraft.util.io.netty.channel.*;
import org.bukkit.Bukkit;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.EventPriority;
import org.bukkit.event.HandlerList;
import org.bukkit.event.Listener;
import org.bukkit.event.player.PlayerLoginEvent;
import org.bukkit.event.server.PluginDisableEvent;
import org.bukkit.plugin.Plugin;
import org.bukkit.scheduler.BukkitRunnable;
import java.util.*;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.logging.Level;
/**
* Represents a very tiny alternative to ProtocolLib.
* <p>
* It now supports intercepting packets during login and status ping (such as OUT_SERVER_PING)!
*
* @author Kristian
*/
//BROKEN: NPEs when player joins while server is starting, and using PlayerJoinEvent instead will cause NPE for protocol version lookup.
//Protocol version number lookup method from DeprecatedLuke's version of TinyProtocol
public abstract class TinyProtocol7 {
private static final AtomicInteger ID = new AtomicInteger(0);
// Used in order to lookup a channel
private static final MethodInvoker getPlayerHandle = Reflection.getMethod("{obc}.entity.CraftPlayer", "getHandle");
private static final FieldAccessor<Object> getConnection = Reflection.getField("{nms}.EntityPlayer", "playerConnection", Object.class);
private static final FieldAccessor<Object> getManager = Reflection.getField("{nms}.PlayerConnection", "networkManager", Object.class);
private static final FieldAccessor<Channel> getChannel = Reflection.getField("{nms}.NetworkManager", Channel.class, 0);
// Looking up ServerConnection
private static final Class<Object> minecraftServerClass = Reflection.getUntypedClass("{nms}.MinecraftServer");
private static final Class<Object> serverConnectionClass = Reflection.getUntypedClass("{nms}.ServerConnection");
private static final FieldAccessor<Object> getMinecraftServer = Reflection.getField("{obc}.CraftServer", minecraftServerClass, 0);
private static final FieldAccessor<Object> getServerConnection = Reflection.getField(minecraftServerClass, serverConnectionClass, 0);
private static final MethodInvoker getNetworkMarkers = Reflection.getTypedMethod(serverConnectionClass, null, List.class, serverConnectionClass);
// Packets we have to intercept
private static final Class<?> PACKET_LOGIN_IN_START = Reflection.getMinecraftClass("PacketLoginInStart");
private static final FieldAccessor<GameProfile> getGameProfile = Reflection.getField(PACKET_LOGIN_IN_START, GameProfile.class, 0);
// Speedup channel/protocol lookup
private final Map<String, Channel> channelLookup = new MapMaker().weakValues().makeMap();
private Listener listener;
// Channels that have already been removed
private final Set<Channel> uninjectedChannels = Collections.newSetFromMap(new MapMaker().weakKeys().<Channel, Boolean>makeMap());
// List of network markers
private List<Object> networkManagers;
// Injected channel handlers
private List<Channel> serverChannels = Lists.newArrayList();
private ChannelInboundHandlerAdapter serverChannelHandler;
private ChannelInitializer<Channel> beginInitProtocol;
private ChannelInitializer<Channel> endInitProtocol;
// Current handler name
private String handlerName;
protected volatile boolean closed;
protected Plugin plugin;
/**
* Construct a new instance of TinyProtocol, and start intercepting packets for all connected clients and future clients.
* <p>
* You can construct multiple instances per plugin.
*
* @param plugin - the plugin.
*/
public TinyProtocol7(final Plugin plugin) {
this.plugin = plugin;
// Compute handler name
this.handlerName = getHandlerName();
// Prepare existing players
registerBukkitEvents();
try {
registerChannelHandler();
registerPlayers(plugin);
} catch (IllegalArgumentException ex) {
// Damn you, late bind
plugin.getLogger().info("[TinyProtocol] Delaying server channel injection due to late bind.");
new BukkitRunnable() {
@Override
public void run() {
registerChannelHandler();
registerPlayers(plugin);
plugin.getLogger().info("[TinyProtocol] Late bind injection successful.");
}
}.runTask(plugin);
}
}
private void createServerChannelHandler() {
// Handle connected channels
endInitProtocol = new ChannelInitializer<Channel>() {
@Override
protected void initChannel(Channel channel) throws Exception {
try {
// This can take a while, so we need to stop the main thread from interfering
synchronized (networkManagers) {
// Stop injecting channels
if (!closed) {
channel.eventLoop().submit(() -> injectChannelInternal(channel));
}
}
} catch (Exception e) {
plugin.getLogger().log(Level.SEVERE, "Cannot inject incomming channel " + channel, e);
}
}
};
// This is executed before Minecraft's channel handler
beginInitProtocol = new ChannelInitializer<Channel>() {
@Override
protected void initChannel(Channel channel) throws Exception {
channel.pipeline().addLast(endInitProtocol);
}
};
serverChannelHandler = new ChannelInboundHandlerAdapter() {
@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
Channel channel = (Channel) msg;
// Prepare to initialize ths channel
channel.pipeline().addFirst(beginInitProtocol);
ctx.fireChannelRead(msg);
}
};
}
/**
* Register bukkit events.
*/
private void registerBukkitEvents() {
listener = new Listener() {
@EventHandler(priority = EventPriority.LOWEST)
public final void onPlayerLogin(PlayerLoginEvent e) {
if (closed)
return;
Channel channel = getChannel(e.getPlayer());
// Don't inject players that have been explicitly uninjected
if (!uninjectedChannels.contains(channel)) {
injectPlayer(e.getPlayer());
}
}
@EventHandler
public final void onPluginDisable(PluginDisableEvent e) {
if (e.getPlugin().equals(plugin)) {
close();
}
}
};
plugin.getServer().getPluginManager().registerEvents(listener, plugin);
}
@SuppressWarnings("unchecked")
private void registerChannelHandler() {
Object mcServer = getMinecraftServer.get(Bukkit.getServer());
Object serverConnection = getServerConnection.get(mcServer);
boolean looking = true;
// We need to synchronize against this list
networkManagers = (List<Object>) getNetworkMarkers.invoke(null, serverConnection);
createServerChannelHandler();
// Find the correct list, or implicitly throw an exception
for (int i = 0; looking; i++) {
List<Object> list = Reflection.getField(serverConnection.getClass(), List.class, i).get(serverConnection);
for (Object item : list) {
if (!(item instanceof ChannelFuture))
break;
// Channel future that contains the server connection
Channel serverChannel = ((ChannelFuture) item).channel();
serverChannels.add(serverChannel);
serverChannel.pipeline().addFirst(serverChannelHandler);
looking = false;
}
}
}
private void unregisterChannelHandler() {
if (serverChannelHandler == null)
return;
for (Channel serverChannel : serverChannels) {
final ChannelPipeline pipeline = serverChannel.pipeline();
// Remove channel handler
serverChannel.eventLoop().execute(new Runnable() {
@Override
public void run() {
try {
pipeline.remove(serverChannelHandler);
} catch (NoSuchElementException e) {
// That's fine
}
}
});
}
}
private void registerPlayers(Plugin plugin) {
for (Player player : plugin.getServer().getOnlinePlayers()) {
injectPlayer(player);
}
}
/**
* Invoked when the server is starting to send a packet to a player.
* <p>
* Note that this is not executed on the main thread.
*
* @param receiver - the receiving player, NULL for early login/status packets.
* @param channel - the channel that received the packet. Never NULL.
* @param packet - the packet being sent.
* @return The packet to send instead, or NULL to cancel the transmission.
*/
public Object onPacketOutAsync(Player receiver, Channel channel, Object packet) {
final String packetName = packet.getClass().getSimpleName();
final PacketSendEvent packetSendEvent = new PacketSendEvent(receiver, packetName, packet);
PacketEvents.getEventManager().callEvent(packetSendEvent);
if (!packetSendEvent.isCancelled()) {
return packet;
}
return null;
}
/**
* Invoked when the server has received a packet from a given player.
* <p>
* Use {@link Channel#remoteAddress()} to get the remote address of the client.
*
* @param sender - the player that sent the packet, NULL for early login/status packets.
* @param channel - channel that received the packet. Never NULL.
* @param packet - the packet being received.
* @return The packet to recieve instead, or NULL to cancel.
*/
public Object onPacketInAsync(Player sender, Channel channel, Object packet) {
return packet;
}
/**
* Send a packet to a particular player.
* <p>
* Note that {@link #onPacketOutAsync(Player, Channel, Object)} will be invoked with this packet.
*
* @param player - the destination player.
* @param packet - the packet to send.
*/
public void sendPacket(Player player, Object packet) {
sendPacket(getChannel(player), packet);
}
/**
* Send a packet to a particular client.
* <p>
* Note that {@link #onPacketOutAsync(Player, Channel, Object)} will be invoked with this packet.
*
* @param channel - client identified by a channel.
* @param packet - the packet to send.
*/
public void sendPacket(Channel channel, Object packet) {
channel.pipeline().writeAndFlush(packet);
}
/**
* Pretend that a given packet has been received from a player.
* <p>
* Note that {@link #onPacketInAsync(Player, Channel, Object)} will be invoked with this packet.
*
* @param player - the player that sent the packet.
* @param packet - the packet that will be received by the server.
*/
public void receivePacket(Player player, Object packet) {
receivePacket(getChannel(player), packet);
}
/**
* Pretend that a given packet has been received from a given client.
* <p>
* Note that {@link #onPacketInAsync(Player, Channel, Object)} will be invoked with this packet.
*
* @param channel - client identified by a channel.
* @param packet - the packet that will be received by the server.
*/
public void receivePacket(Channel channel, Object packet) {
channel.pipeline().context("encoder").fireChannelRead(packet);
}
/**
* Changed from "tiny-" to "packetevents"
* @return handlerName
*/
protected String getHandlerName() {
return "packetevents-" + plugin.getName() + "-" + ID.incrementAndGet();
}
/**
* Add a custom channel handler to the given player's channel pipeline, allowing us to intercept sent and received packets.
* <p>
* This will automatically be called when a player has logged in.
*
* @param player - the player to inject.
*/
public void injectPlayer(Player player) {
final PlayerInjectEvent playerInjectEvent = new PlayerInjectEvent(player);
PacketEvents.getEventManager().callEvent(playerInjectEvent);
if (!playerInjectEvent.isCancelled()) {
injectChannelInternal(getChannel(player)).player = player;
}
}
/**
* Add a custom channel handler to the given channel.
*
* @param channel - the channel to inject.
* @return The intercepted channel, or NULL if it has already been injected.
*/
public void injectChannel(Channel channel) {
injectChannelInternal(channel);
}
/**
* Add a custom channel handler to the given channel.
*
* @param channel - the channel to inject.
* @return The packet interceptor.
*/
private PacketInterceptor injectChannelInternal(Channel channel) {
try {
PacketInterceptor interceptor = (PacketInterceptor) channel.pipeline().get(handlerName);
// Inject our packet interceptor
if (interceptor == null) {
interceptor = new PacketInterceptor();
channel.pipeline().addBefore("packet_handler", handlerName, interceptor);
uninjectedChannels.remove(channel);
}
return interceptor;
} catch (IllegalArgumentException e) {
// Try again
return (PacketInterceptor) channel.pipeline().get(handlerName);
}
}
/**
* Retrieve the Netty channel associated with a player. This is cached.
*
* @param player - the player.
* @return The Netty channel.
*/
public Channel getChannel(Player player) {
Channel channel = channelLookup.get(player.getName());
// Lookup channel again
if (channel == null) {
Object connection = getConnection.get(getPlayerHandle.invoke(player));
Object manager = getManager.get(connection);
channelLookup.put(player.getName(), channel = getChannel.get(manager));
}
return channel;
}
/**
* Uninject a specific player.
*
* @param player - the injected player.
*/
public void uninjectPlayer(Player player) {
uninjectChannel(getChannel(player));
PacketEvents.getEventManager().callEvent(new PlayerUninjectEvent(player));
}
/**
* Uninject a specific channel.
* <p>
* This will also disable the automatic channel injection that occurs when a player has properly logged in.
*
* @param channel - the injected channel.
*/
public void uninjectChannel(final Channel channel) {
// No need to guard against this if we're closing
if (!closed) {
uninjectedChannels.add(channel);
}
// See ChannelInjector in ProtocolLib, line 590
channel.eventLoop().execute(new Runnable() {
@Override
public void run() {
channel.pipeline().remove(handlerName);
}
});
}
/**
* Determine if the given player has been injected by TinyProtocol.
*
* @param player - the player.
* @return TRUE if it is, FALSE otherwise.
*/
public boolean hasInjected(Player player) {
return hasInjected(getChannel(player));
}
/**
* Determine if the given channel has been injected by TinyProtocol.
*
* @param channel - the channel.
* @return TRUE if it is, FALSE otherwise.
*/
public boolean hasInjected(Channel channel) {
return channel.pipeline().get(handlerName) != null;
}
/**
* Cease listening for packets. This is called automatically when your plugin is disabled.
*/
public final void close() {
if (!closed) {
closed = true;
// Remove our handlers
for (Player player : plugin.getServer().getOnlinePlayers()) {
uninjectPlayer(player);
}
// Clean up Bukkit
HandlerList.unregisterAll(listener);
unregisterChannelHandler();
}
}
/**
* Channel handler that is inserted into the player's channel pipeline, allowing us to intercept sent and received packets.
*
* @author Kristian
*/
private final class PacketInterceptor extends ChannelDuplexHandler {
// Updated by the login event
public volatile Player player;
@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
// Intercept channel
final Channel channel = ctx.channel();
handleLoginStart(channel, msg);
try {
msg = onPacketInAsync(player, channel, msg);
} catch (Exception e) {
plugin.getLogger().log(Level.SEVERE, "Error in onPacketInAsync().", e);
}
if (msg != null) {
super.channelRead(ctx, msg);
}
}
@Override
public void write(ChannelHandlerContext ctx, Object msg, ChannelPromise promise) throws Exception {
try {
msg = onPacketOutAsync(player, ctx.channel(), msg);
} catch (Exception e) {
plugin.getLogger().log(Level.SEVERE, "Error in onPacketOutAsync().", e);
}
if (msg != null) {
super.write(ctx, msg, promise);
}
}
private void handleLoginStart(Channel channel, Object packet) {
if (PACKET_LOGIN_IN_START.isInstance(packet)) {
GameProfile profile = getGameProfile.get(packet);
channelLookup.put(profile.getName(), channel);
}
}
}
}
@@ -1,550 +0,0 @@
/*
* This file is part of Hawk Anticheat.
* Copyright (C) 2018 Hawk Development Team
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package io.github.retrooper.packetevents.tinyprotocol;
import com.google.common.collect.Lists;
import com.google.common.collect.MapMaker;
import com.mojang.authlib.GameProfile;
import io.github.retrooper.packetevents.PacketEvents;
import io.github.retrooper.packetevents.event.impl.PlayerInjectEvent;
import io.github.retrooper.packetevents.event.impl.PlayerUninjectEvent;
import io.github.retrooper.packetevents.handler.TinyProtocolHandler_1_8;
import io.github.retrooper.packetevents.tinyprotocol.Reflection.FieldAccessor;
import io.netty.channel.*;
import org.bukkit.Bukkit;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.EventPriority;
import org.bukkit.event.HandlerList;
import org.bukkit.event.Listener;
import org.bukkit.event.player.PlayerLoginEvent;
import org.bukkit.event.server.PluginDisableEvent;
import org.bukkit.plugin.Plugin;
import org.bukkit.scheduler.BukkitRunnable;
import java.lang.reflect.Field;
import java.util.*;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.logging.Level;
/**
* Represents a very tiny alternative to ProtocolLib.
* <p>
* It now supports intercepting packets during login and status ping (such as OUT_SERVER_PING)!
*
* @author Kristian
*/
//BROKEN: NPEs when player joins while server is starting, and using PlayerJoinEvent instead will cause NPE for protocol version lookup.
//Protocol version number lookup method from DeprecatedLuke's version of TinyProtocol
public abstract class TinyProtocol8 {
private static final AtomicInteger ID = new AtomicInteger(0);
// Used in order to lookup a channel
private static final Reflection.MethodInvoker getPlayerHandle = Reflection.getMethod("{obc}.entity.CraftPlayer", "getHandle");
private static final FieldAccessor<Object> getConnection = Reflection.getField("{nms}.EntityPlayer", "playerConnection", Object.class);
private static final FieldAccessor<Object> getManager = Reflection.getField("{nms}.PlayerConnection", "networkManager", Object.class);
private static final FieldAccessor<Channel> getChannel = Reflection.getField("{nms}.NetworkManager", Channel.class, 0);
// Looking up ServerConnection
private static final Class<Object> minecraftServerClass = Reflection.getUntypedClass("{nms}.MinecraftServer");
private static final Class<Object> serverConnectionClass = Reflection.getUntypedClass("{nms}.ServerConnection");
private static final FieldAccessor<Object> getMinecraftServer = Reflection.getField("{obc}.CraftServer", minecraftServerClass, 0);
private static final FieldAccessor<Object> getServerConnection = Reflection.getField(minecraftServerClass, serverConnectionClass, 0);
// Packets we have to intercept
private static final Class<?> PACKET_LOGIN_IN_START = Reflection.getMinecraftClass("PacketLoginInStart");
private static final FieldAccessor<GameProfile> getGameProfile = Reflection.getField(PACKET_LOGIN_IN_START, GameProfile.class, 0);
// Speedup channel/protocol lookup
private final Map<String, Channel> channelLookup = new MapMaker().weakValues().makeMap();
private Listener listener;
// Channels that have already been removed
private final Set<Channel> uninjectedChannels = Collections.newSetFromMap(new MapMaker().weakKeys().<Channel, Boolean>makeMap());
// List of network markers
private List<Object> networkManagers;
// Injected channel handlers
private final List<Channel> serverChannels = Lists.newArrayList();
private ChannelInboundHandlerAdapter serverChannelHandler;
private ChannelInitializer<Channel> beginInitProtocol;
private ChannelInitializer<Channel> endInitProtocol;
// Current handler name
private String handlerName;
protected volatile boolean closed;
protected Plugin plugin;
/**
* Construct a new instance of TinyProtocol, and start intercepting packets for all connected clients and future clients.
* <p>
* You can construct multiple instances per plugin.
*
* @param plugin - the plugin.
*/
public TinyProtocol8(final Plugin plugin) {
this.plugin = plugin;
// Compute handler name
this.handlerName = getHandlerName();
// Prepare existing players
registerBukkitEvents();
try {
registerChannelHandler();
registerPlayers(plugin);
} catch (IllegalArgumentException | NoSuchFieldException | IllegalAccessException ex) {
// Damn you, late bind
plugin.getLogger().info("[TinyProtocol] Delaying server channel injection due to late bind.");
new BukkitRunnable() {
@Override
public void run() {
try {
registerChannelHandler();
} catch (NoSuchFieldException | IllegalAccessException e) {
e.printStackTrace();
}
registerPlayers(plugin);
plugin.getLogger().info("[TinyProtocol] Late bind injection successful.");
}
}.runTask(plugin);
}
}
private void createServerChannelHandler() {
// Handle connected channels
endInitProtocol = new ChannelInitializer<Channel>() {
@Override
protected void initChannel(Channel channel) throws Exception {
try {
// This can take a while, so we need to stop the main thread from interfering
synchronized (networkManagers) {
// Stop injecting channels
if (!closed) {
channel.eventLoop().submit(() -> injectChannelInternal(channel));
}
}
} catch (Exception e) {
plugin.getLogger().log(Level.SEVERE, "Cannot inject incomming channel " + channel, e);
}
}
};
// This is executed before Minecraft's channel handler
beginInitProtocol = new ChannelInitializer<Channel>() {
@Override
protected void initChannel(Channel channel) throws Exception {
channel.pipeline().addLast(endInitProtocol);
}
};
serverChannelHandler = new ChannelInboundHandlerAdapter() {
@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
Channel channel = (Channel) msg;
// Prepare to initialize ths channel
channel.pipeline().addFirst(beginInitProtocol);
ctx.fireChannelRead(msg);
}
};
}
/**
* Register bukkit events.
*/
private void registerBukkitEvents() {
listener = new Listener() {
@EventHandler(priority = EventPriority.LOWEST)
public final void onPlayerLogin(PlayerLoginEvent e) {
if (closed)
return;
Channel channel = getChannel(e.getPlayer());
// Don't inject players that have been explicitly uninjected
if (!uninjectedChannels.contains(channel)) {
injectPlayer(e.getPlayer());
}
}
@EventHandler
public final void onPluginDisable(PluginDisableEvent e) {
if (e.getPlugin().equals(plugin)) {
close();
}
}
};
plugin.getServer().getPluginManager().registerEvents(listener, plugin);
}
/**
* Function modified by Retrooper
*
* @throws NoSuchFieldException
* @throws IllegalAccessException
*/
@SuppressWarnings("unchecked")
private void registerChannelHandler() throws NoSuchFieldException, IllegalAccessException {
Object mcServer = getMinecraftServer.get(Bukkit.getServer());
Object serverConnection = getServerConnection.get(mcServer);
boolean looking = true;
/*
* I am doing this so we can support 1.8->1.15.2, the previous method TinyProtocol used wasn't supported on some versions
* like 1.15.2
*/
final Field networkManagersField = serverConnection.getClass().getDeclaredField(TinyProtocolHandler_1_8.getNetworkManagersFieldName());
networkManagersField.setAccessible(true);
networkManagers = (List<Object>) networkManagersField.get(serverConnection);
createServerChannelHandler();
// Find the correct list, or implicitly throw an exception
for (int i = 0; looking; i++) {
List<Object> list = Reflection.getField(serverConnection.getClass(), List.class, i).get(serverConnection);
for (Object item : list) {
if (!(item instanceof ChannelFuture))
break;
// Channel future that contains the server connection
Channel serverChannel = ((ChannelFuture) item).channel();
serverChannels.add(serverChannel);
serverChannel.pipeline().addFirst(serverChannelHandler);
looking = false;
}
}
}
private void unregisterChannelHandler() {
if (serverChannelHandler == null)
return;
for (Channel serverChannel : serverChannels) {
final ChannelPipeline pipeline = serverChannel.pipeline();
// Remove channel handler
serverChannel.eventLoop().execute(new Runnable() {
@Override
public void run() {
try {
pipeline.remove(serverChannelHandler);
} catch (NoSuchElementException e) {
// That's fine
}
}
});
}
}
private void registerPlayers(Plugin plugin) {
for (Player player : plugin.getServer().getOnlinePlayers()) {
injectPlayer(player);
}
}
/**
* Invoked when the server is starting to send a packet to a player.
* <p>
* Note that this is not executed on the main thread.
*
* @param receiver - the receiving player, NULL for early login/status packets.
* @param channel - the channel that received the packet. Never NULL.
* @param packet - the packet being sent.
* @return The packet to send instead, or NULL to cancel the transmission.
*/
public Object onPacketOutAsync(Player receiver, Channel channel, Object packet) {
return packet;
}
/**
* Invoked when the server has received a packet from a given player.
* <p>
* Use {@link Channel#remoteAddress()} to get the remote address of the client.
*
* @param sender - the player that sent the packet, NULL for early login/status packets.
* @param channel - channel that received the packet. Never NULL.
* @param packet - the packet being received.
* @return The packet to recieve instead, or NULL to cancel.
*/
public Object onPacketInAsync(Player sender, Channel channel, Object packet) {
return packet;
}
/**
* Send a packet to a particular player.
* <p>
* Note that {@link #onPacketOutAsync(Player, Channel, Object)} will be invoked with this packet.
*
* @param player - the destination player.
* @param packet - the packet to send.
*/
public void sendPacket(Player player, Object packet) {
sendPacket(getChannel(player), packet);
}
/**
* Send a packet to a particular client.
* <p>
* Note that {@link #onPacketOutAsync(Player, Channel, Object)} will be invoked with this packet.
*
* @param channel - client identified by a channel.
* @param packet - the packet to send.
*/
public void sendPacket(Channel channel, Object packet) {
channel.pipeline().writeAndFlush(packet);
}
/**
* Pretend that a given packet has been received from a player.
* <p>
* Note that {@link #onPacketInAsync(Player, Channel, Object)} will be invoked with this packet.
*
* @param player - the player that sent the packet.
* @param packet - the packet that will be received by the server.
*/
public void receivePacket(Player player, Object packet) {
receivePacket(getChannel(player), packet);
}
/**
* Pretend that a given packet has been received from a given client.
* <p>
* Note that {@link #onPacketInAsync(Player, Channel, Object)} will be invoked with this packet.
*
* @param channel - client identified by a channel.
* @param packet - the packet that will be received by the server.
*/
public void receivePacket(Channel channel, Object packet) {
channel.pipeline().context("encoder").fireChannelRead(packet);
}
/**
* Changed from "tiny-" to "packetevents"
*
* @return handlerName
*/
protected String getHandlerName() {
return "packetevents-" + plugin.getName() + "-" + ID.incrementAndGet();
}
/**
* Add a custom channel handler to the given player's channel pipeline, allowing us to intercept sent and received packets.
* <p>
* This will automatically be called when a player has logged in.
*
* @param player - the player to inject.
*/
public void injectPlayer(Player player) {
final PlayerInjectEvent playerInjectEvent = new PlayerInjectEvent(player);
PacketEvents.getEventManager().callEvent(playerInjectEvent);
if (!playerInjectEvent.isCancelled()) {
injectChannelInternal(getChannel(player)).player = player;
}
}
/**
* Add a custom channel handler to the given channel.
*
* @param channel - the channel to inject.
* @return The intercepted channel, or NULL if it has already been injected.
*/
public void injectChannel(Channel channel) {
injectChannelInternal(channel);
}
/**
* Add a custom channel handler to the given channel.
*
* @param channel - the channel to inject.
* @return The packet interceptor.
*/
private PacketInterceptor injectChannelInternal(Channel channel) {
try {
PacketInterceptor interceptor = (PacketInterceptor) channel.pipeline().get(handlerName);
// Inject our packet interceptor
if (interceptor == null) {
interceptor = new PacketInterceptor();
channel.pipeline().addBefore("packet_handler", handlerName, interceptor);
uninjectedChannels.remove(channel);
}
return interceptor;
} catch (IllegalArgumentException e) {
// Try again
return (PacketInterceptor) channel.pipeline().get(handlerName);
}
}
/**
* Retrieve the Netty channel associated with a player. This is cached.
*
* @param player - the player.
* @return The Netty channel.
*/
public Channel getChannel(Player player) {
Channel channel = channelLookup.get(player.getName());
// Lookup channel again
if (channel == null) {
Object connection = getConnection.get(getPlayerHandle.invoke(player));
Object manager = getManager.get(connection);
channelLookup.put(player.getName(), channel = getChannel.get(manager));
}
return channel;
}
/**
* Uninject a specific player.
*
* @param player - the injected player.
*/
public void uninjectPlayer(Player player) {
uninjectChannel(getChannel(player));
PacketEvents.getEventManager().callEvent(new PlayerUninjectEvent(player));
}
/**
* Uninject a specific channel.
* <p>
* This will also disable the automatic channel injection that occurs when a player has properly logged in.
*
* @param channel - the injected channel.
*/
public void uninjectChannel(final Channel channel) {
// No need to guard against this if we're closing
if (!closed) {
uninjectedChannels.add(channel);
}
// See ChannelInjector in ProtocolLib, line 590
channel.eventLoop().execute(new Runnable() {
@Override
public void run() {
channel.pipeline().remove(handlerName);
}
});
}
/**
* Determine if the given player has been injected by TinyProtocol.
*
* @param player - the player.
* @return TRUE if it is, FALSE otherwise.
*/
public boolean hasInjected(Player player) {
return hasInjected(getChannel(player));
}
/**
* Determine if the given channel has been injected by TinyProtocol.
*
* @param channel - the channel.
* @return TRUE if it is, FALSE otherwise.
*/
public boolean hasInjected(Channel channel) {
return channel.pipeline().get(handlerName) != null;
}
/**
* Cease listening for packets. This is called automatically when your plugin is disabled.
*/
public final void close() {
if (!closed) {
closed = true;
// Remove our handlers
for (Player player : plugin.getServer().getOnlinePlayers()) {
uninjectPlayer(player);
}
// Clean up Bukkit
HandlerList.unregisterAll(listener);
unregisterChannelHandler();
}
}
/**
* Channel handler that is inserted into the player's channel pipeline, allowing us to intercept sent and received packets.
*
* @author Kristian
*/
private final class PacketInterceptor extends ChannelDuplexHandler {
// Updated by the login event
public volatile Player player;
@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
// Intercept channel
final Channel channel = ctx.channel();
handleLoginStart(channel, msg);
try {
msg = onPacketInAsync(player, channel, msg);
} catch (Exception e) {
plugin.getLogger().log(Level.SEVERE, "Error in onPacketInAsync().", e);
}
if (msg != null) {
super.channelRead(ctx, msg);
}
}
@Override
public void write(ChannelHandlerContext ctx, Object msg, ChannelPromise promise) throws Exception {
try {
msg = onPacketOutAsync(player, ctx.channel(), msg);
} catch (Exception e) {
plugin.getLogger().log(Level.SEVERE, "Error in onPacketOutAsync().", e);
}
if (msg != null) {
super.write(ctx, msg, promise);
}
}
private void handleLoginStart(Channel channel, Object packet) {
if (PACKET_LOGIN_IN_START.isInstance(packet)) {
GameProfile profile = getGameProfile.get(packet);
channelLookup.put(profile.getName(), channel);
}
}
}
}
@@ -3,6 +3,7 @@ package io.github.retrooper.packetevents.utils;
import io.github.retrooper.packetevents.annotations.Nullable;
import io.github.retrooper.packetevents.enums.ServerVersion;
import io.github.retrooper.packetevents.packetwrappers.Sendable;
import io.github.retrooper.packetevents.reflectionutils.Reflection;
import io.github.retrooper.packetevents.utils.nms_entityfinder.EntityFinderUtils;
import org.bukkit.World;
import org.bukkit.entity.Entity;
@@ -22,14 +23,18 @@ public final class NMSUtils {
private static final String obcDir = ServerVersion.getOBCDirectory();
public static Class<?> minecraftServerClass, craftWorldsClass,
packetClass, entityPlayerClass, playerConnectionClass, craftPlayerClass, serverConnectionClass, craftEntityClass, craftItemStack, nmsItemStackClass;
packetClass, entityPlayerClass, playerConnectionClass,
craftPlayerClass, serverConnectionClass, craftEntityClass,
craftItemStack, nmsItemStackClass, networkManagerClass, nettyChannelClass;
private static Method getServerMethod, getCraftWorldHandleMethod, getServerConnection, getCraftPlayerHandle, getCraftEntityHandle, sendPacketMethod, asBukkitCopy;
private static Field recentTPSField, entityPlayerPingField, playerConnectionField;
public static final Reflection.FieldAccessor<?> networkManagerFieldAccesssor, channelFieldAccessor;
static {
try {
nettyChannelClass = getNettyClass("channel.Channel");
minecraftServerClass = getNMSClass("MinecraftServer");
craftWorldsClass = getOBCClass("CraftWorld");
craftPlayerClass = getOBCClass("entity.CraftPlayer");
@@ -40,6 +45,7 @@ public final class NMSUtils {
craftEntityClass = getOBCClass("entity.CraftEntity");
craftItemStack = getOBCClass("inventory.CraftItemStack");
nmsItemStackClass = getNMSClass("ItemStack");
networkManagerClass = getNMSClass("NetworkManager");
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
@@ -66,7 +72,8 @@ public final class NMSUtils {
e.printStackTrace();
}
networkManagerFieldAccesssor = Reflection.getField(playerConnectionClass, networkManagerClass, 0);
channelFieldAccessor = Reflection.getField(networkManagerClass, nettyChannelClass, 0);
}
public static Object getMinecraftServerInstance() throws InvocationTargetException, IllegalAccessException {
@@ -124,16 +131,32 @@ public final class NMSUtils {
}
public static Object getEntityPlayer(final Player player) {
final Object craftPlayer = getCraftPlayer(player);
Object entityPlayer = null;
try {
return getCraftPlayerHandle.invoke(craftPlayer);
return getCraftPlayerHandle.invoke(getCraftPlayer(player));
} catch (IllegalAccessException | InvocationTargetException e) {
e.printStackTrace();
}
return null;
}
public static Object getPlayerConnection(final Player player) {
try {
return playerConnectionField.get( getEntityPlayer(player));
} catch (IllegalAccessException e) {
e.printStackTrace();
}
return null;
}
public static Object getNetworkManager(final Player player) {
return networkManagerFieldAccesssor.get(getPlayerConnection(player));
}
public static Object getChannel(final Player player) {
return channelFieldAccessor.get(getNetworkManager(player));
}
public static int getPlayerPing(final Player player) {
Object entityPlayer = getEntityPlayer(player);
try {
@@ -0,0 +1,10 @@
package io.github.retrooper.packetevents.utils;
import org.bukkit.entity.Player;
import protocolsupport.api.ProtocolSupportAPI;
class ProtocolSupportAPIAccessor {
public static int getProtocolVersion(final Player player) {
return ProtocolSupportAPI.getProtocolVersion(player).getId();
}
}
@@ -0,0 +1,15 @@
package io.github.retrooper.packetevents.utils;
import org.bukkit.Bukkit;
import org.bukkit.entity.Player;
import protocolsupport.api.ProtocolSupportAPI;
public class ProtocolSupportUtils {
public static boolean isProtocolSupportAvailable() {
return Bukkit.getPluginManager().getPlugin("ProtocolSupport") != null;
}
public static int getProtocolVersion(final Player player) {
return ProtocolSupportAPI.getProtocolVersion(player).getId();
}
}
@@ -0,0 +1,14 @@
package io.github.retrooper.packetevents.utils;
import org.bukkit.entity.Player;
public class VersionLookupUtils {
public static int getProtocolVersion(final Player player) {
if (ViaUtils.isViaAPIAvaialable()) {
return ViaUtils.getProtocolVersion(player);
} else if (ProtocolSupportUtils.isProtocolSupportAvailable()) {
return ProtocolSupportUtils.getProtocolVersion(player);
}
return -1;
}
}
@@ -0,0 +1,16 @@
package io.github.retrooper.packetevents.utils;
import org.bukkit.entity.Player;
import us.myles.ViaVersion.api.Via;
import java.util.UUID;
class ViaAPIAccessor {
public static int getProtocolVersion(final Player player) {
return getProtocolVersion(player.getUniqueId());
}
public static int getProtocolVersion(final UUID uuid) {
return Via.getAPI().getPlayerVersion(uuid);
}
}
@@ -0,0 +1,15 @@
package io.github.retrooper.packetevents.utils;
import org.bukkit.Bukkit;
import org.bukkit.entity.Player;
public class ViaUtils {
public static int getProtocolVersion(final Player player) {
return ViaAPIAccessor.getProtocolVersion(player);
}
public static boolean isViaAPIAvaialable() {
return Bukkit.getPluginManager().getPlugin("ViaVersion") != null;
}
}
@@ -13,58 +13,12 @@ import java.lang.reflect.Method;
public final class EntityFinderUtils {
@Nullable
private static ServerVersion version = PacketEvents.getServerVersion();
public static Entity getEntityById(final int id) {
for (final World world : Bukkit.getWorlds()) {
final Entity entity = getEntityByIdWithWorld(world, id);
if (entity != null) {
return entity;
}
}
return null;
}
@Nullable
public static Entity getEntityByIdWithWorld(final World world, final int id) {
if(world == null) {
return null;
}
Object craftWorld = craftWorldClass.cast(world);
Object worldServer = null;
try {
worldServer = craftWorldGetHandle.invoke(craftWorld);
} catch (IllegalAccessException | InvocationTargetException e) {
e.printStackTrace();
}
Object nmsEntity = null;
try {
nmsEntity = getEntityByIdMethod.invoke(worldServer, id);
} catch (IllegalAccessException | InvocationTargetException e) {
e.printStackTrace();
}
if(nmsEntity == null) {
return null;
}
try {
return (Entity) getBukkitEntity.invoke(nmsEntity);
} catch (IllegalAccessException | InvocationTargetException e) {
e.printStackTrace();
}
return null;
}
private static final ServerVersion version = PacketEvents.getServerVersion();
private static Class<?> worldServerClass;
private static Class<?> craftWorldClass;
private static Class<?> entityClass;
private static Method getEntityByIdMethod;
private static Method craftWorldGetHandle;
private static Method getBukkitEntity;
static {
@@ -85,6 +39,47 @@ public final class EntityFinderUtils {
}
}
public static Entity getEntityById(final int id) {
for (final World world : Bukkit.getWorlds()) {
final Entity entity = getEntityByIdWithWorld(world, id);
if (entity != null) {
return entity;
}
}
return null;
}
@Nullable
public static Entity getEntityByIdWithWorld(final World world, final int id) {
if (world == null) {
return null;
}
Object craftWorld = craftWorldClass.cast(world);
Object worldServer = null;
try {
worldServer = craftWorldGetHandle.invoke(craftWorld);
} catch (IllegalAccessException | InvocationTargetException e) {
e.printStackTrace();
}
Object nmsEntity = null;
try {
nmsEntity = getEntityByIdMethod.invoke(worldServer, id);
} catch (IllegalAccessException | InvocationTargetException e) {
e.printStackTrace();
}
if (nmsEntity == null) {
return null;
}
try {
return (Entity) getBukkitEntity.invoke(nmsEntity);
} catch (IllegalAccessException | InvocationTargetException e) {
e.printStackTrace();
}
return null;
}
public static String getEntityByNameMethodName() {
if (version.isHigherThan(ServerVersion.v_1_7_10) && version.isLowerThan(ServerVersion.v_1_9)) {
return "a";