DivineMC/patches/unapplied/server/minecraft-patches/features/0025-Implement-NoChatReports.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: NONPLAYT <76615486+NONPLAYT@users.noreply.github.com>
Date: Tue, 4 Feb 2025 01:49:17 +0300
Subject: [PATCH] Implement NoChatReports


diff --git a/net/minecraft/network/FriendlyByteBuf.java b/net/minecraft/network/FriendlyByteBuf.java
index d1daa3443446f47e2215f0c7c5823da58e053bab..61b1440ee7909946cd2d7a4d8622f79c6f6ac76b 100644
--- a/net/minecraft/network/FriendlyByteBuf.java
+++ b/net/minecraft/network/FriendlyByteBuf.java
@@ -105,7 +105,28 @@ public class FriendlyByteBuf extends ByteBuf {
         return this;
     }
 
+    @SuppressWarnings({"unchecked", "rawtypes"}) // DivineMC - Implement NoChatReports
     public <T> T readJsonWithCodec(Codec<T> codec) {
+        // DivineMC start - Implement NoChatReports
+        if (org.bxteam.divinemc.DivineConfig.noChatReportsEnabled) {
+            if (codec == net.minecraft.network.protocol.status.ServerStatus.CODEC) {
+                JsonElement jsonElement = GsonHelper.fromJson(GSON, this.readUtf(), JsonElement.class);
+                DataResult dataResult = codec.parse(JsonOps.INSTANCE, jsonElement);
+                Object result;
+                try {
+                    result = dataResult.getOrThrow(string -> new DecoderException("Failed to decode json: " + string));
+                } catch (Throwable e) {
+                    throw new RuntimeException("Unable to decode json!", e);
+                }
+
+                if (jsonElement.getAsJsonObject().has("preventsChatReports")) {
+                    ((net.minecraft.network.protocol.status.ServerStatus) result).setPreventsChatReports(jsonElement.getAsJsonObject().get("preventsChatReports").getAsBoolean());
+                }
+
+                return (T) (result);
+            }
+        }
+        // DivineMC end - Implement NoChatReports
         JsonElement jsonElement = GsonHelper.fromJson(GSON, this.readUtf(), JsonElement.class);
         DataResult<T> dataResult = codec.parse(JsonOps.INSTANCE, jsonElement);
         return dataResult.getOrThrow(exception -> new DecoderException("Failed to decode json: " + exception));
@@ -117,6 +138,19 @@ public class FriendlyByteBuf extends ByteBuf {
     }
     public <T> void writeJsonWithCodec(Codec<T> codec, T value, int maxLength) {
         // Paper end - Adventure; add max length parameter
+        // DivineMC start - Implement NoChatReports
+        if (org.bxteam.divinemc.DivineConfig.noChatReportsEnabled) {
+            if (org.bxteam.divinemc.DivineConfig.noChatReportsAddQueryData && codec == net.minecraft.network.protocol.status.ServerStatus.CODEC) {
+                DataResult<JsonElement> dataResult = codec.encodeStart(JsonOps.INSTANCE, value);
+                JsonElement element = dataResult.getOrThrow(string -> new EncoderException("Failed to encode: " + string + " " + value));
+
+                element.getAsJsonObject().addProperty("preventsChatReports", true);
+
+                this.writeUtf(GSON.toJson(element));
+                return;
+            }
+        }
+        // DivineMC end - Implement NoChatReports
         DataResult<JsonElement> dataResult = codec.encodeStart(JsonOps.INSTANCE, value);
         this.writeUtf(GSON.toJson(dataResult.getOrThrow(exception -> new EncoderException("Failed to encode: " + exception + " " + value))), maxLength); // Paper - Adventure; add max length parameter
     }
diff --git a/net/minecraft/network/protocol/game/ServerboundChatCommandSignedPacket.java b/net/minecraft/network/protocol/game/ServerboundChatCommandSignedPacket.java
index 07943553b562b95076bdce232d6f0796f469400f..61ecf4c6ae37b13ed42dff8d4165d32f3a5cc0c9 100644
--- a/net/minecraft/network/protocol/game/ServerboundChatCommandSignedPacket.java
+++ b/net/minecraft/network/protocol/game/ServerboundChatCommandSignedPacket.java
@@ -36,4 +36,15 @@ public record ServerboundChatCommandSignedPacket(
     public void handle(ServerGamePacketListener handler) {
         handler.handleSignedChatCommand(this);
     }
+
+    // DivineMC start - Implement NoChatReports
+    @Override
+    public ArgumentSignatures argumentSignatures() {
+        if (org.bxteam.divinemc.DivineConfig.noChatReportsEnabled) {
+            return ArgumentSignatures.EMPTY;
+        }
+
+        return argumentSignatures;
+    }
+    // DivineMC end - Implement NoChatReports
 }
diff --git a/net/minecraft/network/protocol/game/ServerboundChatPacket.java b/net/minecraft/network/protocol/game/ServerboundChatPacket.java
index b5afc05924ae899e020c303c8b86398e1d4ab8a0..3af0436ac2dff04cfaa1b3dda11a5417f2c0890c 100644
--- a/net/minecraft/network/protocol/game/ServerboundChatPacket.java
+++ b/net/minecraft/network/protocol/game/ServerboundChatPacket.java
@@ -36,4 +36,16 @@ public record ServerboundChatPacket(String message, Instant timeStamp, long salt
     public void handle(ServerGamePacketListener handler) {
         handler.handleChat(this);
     }
+
+    // DivineMC start - Implement NoChatReports
+    @Override
+    @Nullable
+    public MessageSignature signature() {
+        if (org.bxteam.divinemc.DivineConfig.noChatReportsEnabled) {
+            return null;
+        }
+
+        return signature;
+    }
+    // DivineMC end - Implement NoChatReports
 }
diff --git a/net/minecraft/network/protocol/game/ServerboundChatSessionUpdatePacket.java b/net/minecraft/network/protocol/game/ServerboundChatSessionUpdatePacket.java
index 1df628ac0b414511aaed6e09d78f884c4170f730..d94858facc06d57139e953796ee09dad17648dbb 100644
--- a/net/minecraft/network/protocol/game/ServerboundChatSessionUpdatePacket.java
+++ b/net/minecraft/network/protocol/game/ServerboundChatSessionUpdatePacket.java
@@ -26,6 +26,19 @@ public record ServerboundChatSessionUpdatePacket(RemoteChatSession.Data chatSess
 
     @Override
     public void handle(ServerGamePacketListener handler) {
+        // DivineMC start - Implement NoChatReports
+        if (org.bxteam.divinemc.DivineConfig.noChatReportsEnabled) {
+            var impl = (net.minecraft.server.network.ServerGamePacketListenerImpl) handler;
+
+            if (!impl.getPlayer().getServer().isSingleplayerOwner(impl.getPlayer().getGameProfile())) {
+                if (org.bxteam.divinemc.DivineConfig.noChatReportsDemandOnClient) {
+                    impl.disconnect(net.minecraft.network.chat.Component.literal(org.bxteam.divinemc.DivineConfig.noChatReportsDisconnectDemandOnClientMessage));
+                }
+            }
+
+            return;
+        }
+        // DivineMC end - Implement NoChatReports
         handler.handleChatSessionUpdate(this);
     }
 }
diff --git a/net/minecraft/network/protocol/status/ServerStatus.java b/net/minecraft/network/protocol/status/ServerStatus.java
index 30bd254542d631676494f349ff3f44f52d54ab2f..6c728ae3b58bc1b8449d34c6c74091612b79f39e 100644
--- a/net/minecraft/network/protocol/status/ServerStatus.java
+++ b/net/minecraft/network/protocol/status/ServerStatus.java
@@ -15,13 +15,7 @@ import net.minecraft.network.chat.CommonComponents;
 import net.minecraft.network.chat.Component;
 import net.minecraft.network.chat.ComponentSerialization;
 
-public record ServerStatus(
-    Component description,
-    Optional<ServerStatus.Players> players,
-    Optional<ServerStatus.Version> version,
-    Optional<ServerStatus.Favicon> favicon,
-    boolean enforcesSecureChat
-) {
+public final class ServerStatus {
     public static final Codec<ServerStatus> CODEC = RecordCodecBuilder.create(
         instance -> instance.group(
                 ComponentSerialization.CODEC.lenientOptionalFieldOf("description", CommonComponents.EMPTY).forGetter(ServerStatus::description),
@@ -33,6 +27,63 @@ public record ServerStatus(
             .apply(instance, ServerStatus::new)
     );
 
+    // DivineMC start - Implement NoChatReports - convert to class
+    private final Component description;
+    private final Optional<Players> players;
+    private final Optional<Version> version;
+    private final Optional<Favicon> favicon;
+    private final boolean enforcesSecureChat;
+    private boolean preventsChatReports;
+
+    public ServerStatus(
+        Component description,
+        Optional<Players> players,
+        Optional<Version> version,
+        Optional<Favicon> favicon,
+        boolean enforcesSecureChat
+    ) {
+        this.description = description;
+        this.players = players;
+        this.version = version;
+        this.favicon = favicon;
+        this.enforcesSecureChat = enforcesSecureChat;
+    }
+
+    public Component description() {
+        return description;
+    }
+
+    public Optional<Players> players() {
+        return players;
+    }
+
+    public Optional<Version> version() {
+        return version;
+    }
+
+    public Optional<Favicon> favicon() {
+        return favicon;
+    }
+
+    public boolean enforcesSecureChat() {
+        return enforcesSecureChat;
+    }
+
+    public boolean preventsChatReports() {
+        var self = (ServerStatus) (Object) this;
+
+        if (self.version().isPresent() && self.version().get().protocol() < 759
+            && self.version().get().protocol() > 0)
+            return true;
+
+        return this.preventsChatReports;
+    }
+
+    public void setPreventsChatReports(boolean prevents) {
+        this.preventsChatReports = prevents;
+    }
+    // DivineMC end - Implement NoChatReports
+
     public record Favicon(byte[] iconBytes) {
         private static final String PREFIX = "data:image/png;base64,";
         public static final Codec<ServerStatus.Favicon> CODEC = Codec.STRING.comapFlatMap(string -> {
diff --git a/net/minecraft/server/dedicated/DedicatedServer.java b/net/minecraft/server/dedicated/DedicatedServer.java
index 9fcdff2be139296f4e14b54c33cc795efdff0c7f..64c3bbe540599e5195f0cc89635bff2c56d1a320 100644
--- a/net/minecraft/server/dedicated/DedicatedServer.java
+++ b/net/minecraft/server/dedicated/DedicatedServer.java
@@ -668,6 +668,7 @@ public class DedicatedServer extends MinecraftServer implements ServerInterface
 
     @Override
     public boolean enforceSecureProfile() {
+        if (org.bxteam.divinemc.DivineConfig.noChatReportsEnabled) return false; // DivineMC - Implement NoChatReports
         DedicatedServerProperties properties = this.getProperties();
         // Paper start - Add setting for proxy online mode status
         return properties.enforceSecureProfile
diff --git a/net/minecraft/server/network/ServerCommonPacketListenerImpl.java b/net/minecraft/server/network/ServerCommonPacketListenerImpl.java
index 801dd76a2c7f76fc6fdb7167cbf3ab1310be36c9..4fa55fac5dab26a505cba2c1876e9459a582da12 100644
--- a/net/minecraft/server/network/ServerCommonPacketListenerImpl.java
+++ b/net/minecraft/server/network/ServerCommonPacketListenerImpl.java
@@ -312,10 +312,64 @@ public abstract class ServerCommonPacketListenerImpl implements ServerCommonPack
     }
 
     public void send(Packet<?> packet) {
+        // DivineMC start - Implement NoChatReports
+        if (org.bxteam.divinemc.DivineConfig.noChatReportsEnabled) {
+            Object self = this;
+            boolean cancel = false;
+
+            if (self instanceof ServerGamePacketListenerImpl listener) {
+                if (org.bxteam.divinemc.DivineConfig.noChatReportsDebugLog && packet instanceof net.minecraft.network.protocol.game.ClientboundPlayerChatPacket chat) {
+                    MinecraftServer.LOGGER.info("Sending message: {}", chat.unsignedContent() != null ? chat.unsignedContent()
+                        : chat.body().content());
+                }
+
+                if (org.bxteam.divinemc.DivineConfig.noChatReportsConvertToGameMessage) {
+                    if (packet instanceof net.minecraft.network.protocol.game.ClientboundPlayerChatPacket chat) {
+                        packet = new net.minecraft.network.protocol.game.ClientboundSystemChatPacket(chat.chatType().decorate(
+                            chat.unsignedContent() != null ? chat.unsignedContent()
+                                : Component.literal(chat.body().content())
+                        ), false);
+
+                        cancel = true;
+                        listener.send(packet);
+                    }
+                }
+            }
+
+            if (cancel) {
+                return;
+            }
+        }
+        // DivineMC end - Implement NoChatReports
         this.send(packet, null);
     }
 
     public void send(Packet<?> packet, @Nullable PacketSendListener listener) {
+        // DivineMC start - Implement NoChatReports
+        if (org.bxteam.divinemc.DivineConfig.noChatReportsEnabled) {
+            Object self = this;
+            boolean cancel = false;
+
+            if (self instanceof ServerGamePacketListenerImpl listenerImpl) {
+                if (org.bxteam.divinemc.DivineConfig.noChatReportsDebugLog && packet instanceof net.minecraft.network.protocol.game.ClientboundPlayerChatPacket chat) {
+                    MinecraftServer.LOGGER.info("Sending message: {}", chat.unsignedContent() != null ? chat.unsignedContent()
+                        : chat.body().content());
+                }
+
+                if (org.bxteam.divinemc.DivineConfig.noChatReportsConvertToGameMessage) {
+                    if (packet instanceof net.minecraft.network.protocol.game.ClientboundPlayerChatPacket chat && listener != null) {
+                        cancel = true;
+                        listenerImpl.send(chat);
+                    }
+                }
+
+            }
+
+            if (cancel) {
+                return;
+            }
+        }
+        // DivineMC end - Implement NoChatReports
         // CraftBukkit start
         if (packet == null || this.processedDisconnect) { // Spigot
             return;
diff --git a/net/minecraft/server/players/PlayerList.java b/net/minecraft/server/players/PlayerList.java
index 3d8c1c5aa922ec0417388a1ff27d423cdb6d1351..6cbd57650f1f966955ee14039bca8ceb164599cd 100644
--- a/net/minecraft/server/players/PlayerList.java
+++ b/net/minecraft/server/players/PlayerList.java
@@ -274,7 +274,7 @@ public abstract class PlayerList {
                 !_boolean,
                 _boolean2,
                 player.createCommonSpawnInfo(serverLevel),
-                this.server.enforceSecureProfile()
+                org.bxteam.divinemc.DivineConfig.noChatReportsEnabled || this.server.enforceSecureProfile() // DivineMC - Implement NoChatReports
             )
         );
         player.getBukkitEntity().sendSupportedChannels(); // CraftBukkit
@@ -1333,6 +1333,7 @@ public abstract class PlayerList {
     }
 
     public boolean verifyChatTrusted(PlayerChatMessage message) { // Paper - private -> public
+        if (org.bxteam.divinemc.DivineConfig.noChatReportsEnabled) return true; // DivineMC - Implement NoChatReports
         return message.hasSignature() && !message.hasExpiredServer(Instant.now());
     }