README.md

@@ -1,7 +1,7 @@
 # Minecraft bot stress tester
 🤖 A simple open source app written in Java used for stress testing Minecraft servers with bots (fake players).  
 💥 It can be also used to test plugins or minigames.  
-✔️ The MC version of the bots is 1.19. (Does not support 1.19.1 yet)
+✔️ The MC version of the bots is 1.19.1 (and 1.19.2)
 
 ## 🆒 Features
 - ✅ Connect as many bots as you want

build.gradle

@@ -3,7 +3,7 @@ plugins {
 }
 
 group 'me.creepermaxcz.mc-bots'
-version '1.2.4'
+version '1.2.5'
 
 sourceCompatibility = 1.8
 targetCompatibility = 1.8
@@ -11,11 +11,12 @@ targetCompatibility = 1.8
 repositories {
     mavenCentral()
     maven { url 'https://jitpack.io' }
-    maven { url 'https://repo.opencollab.dev/maven-releases' }
+    maven { url 'https://repo.opencollab.dev/maven-snapshots/' }
+    maven { url 'https://repo.opencollab.dev/maven-releases/' }
 }
 
 dependencies {
-    implementation 'com.github.GeyserMC:MCProtocolLib:1.19-1'
+    implementation 'com.github.steveice10:mcprotocollib:1.19.1-SNAPSHOT'
     implementation 'commons-cli:commons-cli:1.5.0'
     implementation 'com.diogonunes:JColor:5.2.0'
     implementation 'dnsjava:dnsjava:3.4.3'

src/main/java/me/creepermaxcz/mcbots/Bot.java

@@ -1,6 +1,7 @@
 package me.creepermaxcz.mcbots;
 
 import com.github.steveice10.mc.protocol.MinecraftProtocol;
+import com.github.steveice10.mc.protocol.data.game.LastSeenMessage;
 import com.github.steveice10.mc.protocol.packet.ingame.clientbound.ClientboundLoginPacket;
 import com.github.steveice10.mc.protocol.packet.ingame.clientbound.entity.player.ClientboundPlayerPositionPacket;
 import com.github.steveice10.mc.protocol.packet.ingame.serverbound.ServerboundChatCommandPacket;
@@ -16,7 +17,8 @@ import com.github.steveice10.packetlib.tcp.TcpClientSession;
 
 import java.net.InetSocketAddress;
 import java.time.Instant;
-import java.util.HashMap;
+import java.util.ArrayList;
+import java.util.UUID;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
@@ -28,6 +30,7 @@ public class Bot extends Thread {
     private ProxyInfo proxy;
     private InetSocketAddress address;
     private Session client;
+    private UUID uuid;
     private boolean hasMainListener;
 
     private double lastX, lastY, lastZ = -1;
@@ -38,6 +41,7 @@ public class Bot extends Thread {
         this.nickname = nickname;
         this.address = address;
         this.proxy = proxy;
+        this.uuid = UUID.randomUUID(); // Add random UUID for sending message.
 
         Log.info("Creating bot", nickname);
         protocol = new MinecraftProtocol(nickname);
@@ -106,29 +110,33 @@ public class Bot extends Thread {
         // The server console will print out that the message was "expired". To avoid this, set timeStamp as now.
         long timeStamp = Instant.now().toEpochMilli();
 
-        //send command
+        // Send command
         if (text.startsWith("/")) {
-
             client.send(new ServerboundChatCommandPacket(
-                    text.substring(1), //remove slash on start
+                    text.substring(1),
                     timeStamp,
                     0,
-                    new HashMap<>(),
-                    true
+                    new ArrayList<>(),
+                    true,
+                    new ArrayList<>(),
+                    null
             ));
         } else {
-            //send chat message
-
+            // Send chat message
             // From 1.19.1 or 1.19, the ServerboundChatPacket needs timestamp, salt and signed signature to generate packet.
             // tmpSignature will provide an empty byte array that can pretend it as signature.
-            byte[] tmpSignature = new byte[0]; // Set it empty byte array.
             // salt is set 0 since this is offline server and no body will check it.
-            client.send(new ServerboundChatPacket(text, timeStamp, 0, tmpSignature, true));
+            client.send(new ServerboundChatPacket(text,
+                    timeStamp,
+                    0,
+                    new byte[0],
+                    true,
+                    new ArrayList<>(),
+                    null
+            ));
         }
-
     }
 
-
     public String getNickname() {
         return nickname;
     }

src/main/java/me/creepermaxcz/mcbots/MainListener.java

@@ -20,17 +20,34 @@ public class MainListener implements SessionListener {
         // From 1.19.1 (as well as 1.19), the class ClientboundChatPacket was removed.
         // Instead, they use ClientboundPlayerChatPacket and ClientboundSystemChatPacket for taking care of chat packets.
         Component message = null;
-        if(packet instanceof ClientboundPlayerChatPacket) {
-            // Since we are working on offline server, salt will be 0.
-            message = ((ClientboundPlayerChatPacket) packet).getSignedContent(); // getSignedContent
-        } else if (packet instanceof ClientboundSystemChatPacket) {
+        Component sender;
+        boolean chatPrintedOut = false;
+
+        if (packet instanceof ClientboundPlayerChatPacket) {
+            ClientboundPlayerChatPacket clientboundPlayerChatPacket = ((ClientboundPlayerChatPacket) packet);
+            message = clientboundPlayerChatPacket.getUnsignedContent();
+            sender = clientboundPlayerChatPacket.getName();
+
+            // Sometimes the message's body gets null.
+            // For example, some commands like /say makes the message content as null.
+            // However, the message exists as in getMessagePlain(), thus can retrieve message using the method.
+            if (message == null) {  // When this message was null.
+                Log.chat(Utils.getFullText((TextComponent) sender, clientboundPlayerChatPacket.getMessagePlain(), Main.coloredChat));
+            } else { // When message exists.
+                Log.chat(Utils.getFullText((TextComponent) sender, (TextComponent) message, Main.coloredChat));
+            }
+            chatPrintedOut = true;
+
+        } else if (packet instanceof ClientboundSystemChatPacket) { // When this was SystemChat packet.
             message = ((ClientboundSystemChatPacket) packet).getContent();
         }
-        //Log.chat(message.toString());
-        if (message instanceof TextComponent) {
+
+        // For output of commands, this is the case where this program prints out the message to user.
+        if (message instanceof TextComponent && !chatPrintedOut) {
             TextComponent msg = (TextComponent) message;
             Log.chat(Utils.getFullText(msg, Main.coloredChat));
         }
+
         if (message instanceof TranslatableComponent) {
             TranslatableComponent msg = (TranslatableComponent) message;
             Log.chat("[T]", Utils.translate(msg));

src/main/java/me/creepermaxcz/mcbots/Utils.java

@@ -8,7 +8,10 @@ import net.kyori.adventure.text.Component;
 import net.kyori.adventure.text.TextComponent;
 import net.kyori.adventure.text.TranslatableComponent;
 import net.kyori.adventure.text.format.NamedTextColor;
+import net.kyori.adventure.text.format.Style;
 import net.kyori.adventure.text.format.TextDecoration;
+import org.jetbrains.annotations.Nullable;
+import org.w3c.dom.Text;
 
 import java.io.InputStream;
 import java.io.InputStreamReader;
@@ -45,7 +48,83 @@ public class Utils {
             }
             return out;
         }
+    }
 
+    /**
+     * A static function that gets full text from text components.
+     * From 1.19.1 the protocol does not include sender's information in the message.
+     * Thus, we need to merge two TextComponent (sender and message) and generate a text that consists of sent message.
+     * This means using old getFullText will just send the message. Which does NOT contain username who sent this message
+     * @param sender The TextComponent for sender.
+     * @param message The TextComponent for message.
+     * @param colored Whether if this output was colored or not.
+     * @return Returns String in "Username : Message" format.
+     */
+    public static String getFullText(@Nullable TextComponent sender, TextComponent message, boolean colored) {
+        if (colored) { // Check if we are using colors.
+            Style messageStyle = message.style();
+            StringBuilder outString = new StringBuilder();
+
+            if (sender != null) {
+                Style senderStyle = sender.style();
+                if (senderStyle.color() != null) { // Generate sender text with color.
+                    NamedTextColor color = (NamedTextColor) senderStyle.color();
+                    outString.append(colorize(sender.content(), getColor(color)));
+                } else {
+                    outString.append(sender.content());
+                }
+                outString.append(" : "); // Add delimiter as : between sender and message.
+            }
+
+            if (messageStyle.color() != null) { // Generate message text with color.
+                NamedTextColor color = (NamedTextColor) messageStyle.color();
+                outString.append(colorize(message.content(), getColor(color)));
+            } else {
+                outString.append(message.content());
+            }
+
+            return outString.toString();
+        } else { // When color formatting was disabled.
+            if (sender == null)
+                return message.content();
+            else
+                return sender.content() + " : " + message.content();
+        }
+    }
+
+    /**
+     * A static function that gets full text from text components.
+     * From 1.19.1 the protocol does not include sender's information in the message.
+     * Sometimes the message as component is null. When this happens, this method will show message as String.
+     * Since this is just a String being represented, this will not have formatting on String.
+     * @param sender The TextComponent for sender.
+     * @param message The TextComponent for message.
+     * @param colored Whether if this output was colored or not.
+     * @return Returns String in "Username : Message" format.
+     */
+    public static String getFullText(@Nullable TextComponent sender, String message, boolean colored) {
+        if (colored) { // Check if we are using colors.
+            StringBuilder outString = new StringBuilder();
+
+            if (sender != null) {
+                Style senderStyle = sender.style();
+                if (senderStyle.color() != null) { // Generate sender text with color.
+                    NamedTextColor color = (NamedTextColor) senderStyle.color();
+                    outString.append(colorize(sender.content(), getColor(color)));
+                } else {
+                    outString.append(sender.content());
+                }
+                outString.append(" : "); // Add delimiter as : between sender and message.
+            }
+
+            outString.append(message);
+            return outString.toString();
+        } else { // When color formatting was disabled.
+            if (sender == null)
+                return message;
+            else
+                return sender.content() + " : " + message;
+        }
     }
 
     public static Attribute getColor(NamedTextColor color) {