Feature: AntiSpam module

src/main/java/com/lambda/mixin/render/ChatHudMixin.java

@@ -17,15 +17,15 @@
 
 package com.lambda.mixin.render;
 
-import com.lambda.module.modules.client.LambdaMoji;
+import com.lambda.event.EventFlow;
+import com.lambda.event.events.ChatEvent;
+import com.llamalad7.mixinextras.injector.wrapmethod.WrapMethod;
 import com.llamalad7.mixinextras.injector.wrapoperation.Operation;
-import com.llamalad7.mixinextras.injector.wrapoperation.WrapOperation;
-import net.minecraft.client.font.TextRenderer;
-import net.minecraft.client.gui.DrawContext;
 import net.minecraft.client.gui.hud.ChatHud;
-import net.minecraft.text.OrderedText;
+import net.minecraft.client.gui.hud.MessageIndicator;
+import net.minecraft.network.message.MessageSignatureData;
+import net.minecraft.text.Text;
 import org.spongepowered.asm.mixin.Mixin;
-import org.spongepowered.asm.mixin.injection.At;
 
 @Mixin(ChatHud.class)
 public class ChatHudMixin {
@@ -41,4 +41,12 @@ public class ChatHudMixin {
 //    int wrapRenderCall(DrawContext instance, TextRenderer textRenderer, OrderedText text, int x, int y, int color, Operation<Integer> original) {
 //        return original.call(instance, textRenderer, LambdaMoji.INSTANCE.parse(text, x, y, color), 0, y, 16777215 + (color << 24));
 //    }
+
+    @WrapMethod(method = "addMessage(Lnet/minecraft/text/Text;Lnet/minecraft/network/message/MessageSignatureData;Lnet/minecraft/client/gui/hud/MessageIndicator;)V")
+    void wrapAddMessage(Text message, MessageSignatureData signatureData, MessageIndicator indicator, Operation<Void> original) {
+        var event = new ChatEvent.Message(message, signatureData, indicator);
+
+        if (!EventFlow.post(event).isCanceled())
+            original.call(event.getMessage(), event.getSignature(), event.getIndicator());
+    }
 }

src/main/kotlin/com/lambda/config/groups/ReplaceConfig.kt

@@ -0,0 +1,40 @@
+/*
+ * Copyright 2025 Lambda
+ *
+ * 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 <http://www.gnu.org/licenses/>.
+ */
+
+package com.lambda.config.groups
+
+import com.lambda.util.Describable
+
+interface ReplaceConfig {
+	val action: ActionStrategy
+	val replace: ReplaceStrategy
+
+	val enabled: Boolean get() = action != ActionStrategy.None
+
+	enum class ActionStrategy(override val description: String) : Describable {
+		Hide("Hides the message. Will override other strategies."),
+		Delete("Deletes the matching part off the message."),
+		Replace("Replace the matching string in the message with one of the following replace strategy."),
+		None("Don't do anything."),
+	}
+
+	enum class ReplaceStrategy(val block: (String) -> String) {
+		CensorAll({ it.replaceRange(0..<it.length, "*".repeat(it.length))}),
+		CensorHalf({ it.foldIndexed("") { i, acc, char -> if (i % 2 == 0) acc + char else "$acc*" } }),
+		KeepFirst({ if (it.length <= 1) it else it.replaceRange(1, it.length, "*".repeat(it.length - 1)) }),
+	}
+}

src/main/kotlin/com/lambda/event/events/ChatEvent.kt

@@ -0,0 +1,32 @@
+/*
+ * Copyright 2025 Lambda
+ *
+ * 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 <http://www.gnu.org/licenses/>.
+ */
+
+package com.lambda.event.events
+
+import com.lambda.event.Event
+import com.lambda.event.callback.Cancellable
+import net.minecraft.client.gui.hud.MessageIndicator
+import net.minecraft.network.message.MessageSignatureData
+import net.minecraft.text.Text
+
+sealed class ChatEvent {
+	class Message(
+		var message: Text,
+		var signature: MessageSignatureData?,
+		var indicator: MessageIndicator?,
+	) : Event, Cancellable()
+}

src/main/kotlin/com/lambda/module/modules/chat/AntiSpam.kt

@@ -0,0 +1,136 @@
+/*
+ * Copyright 2025 Lambda
+ *
+ * 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 <http://www.gnu.org/licenses/>.
+ */
+
+package com.lambda.module.modules.chat
+
+import com.lambda.config.Configurable
+import com.lambda.config.SettingGroup
+import com.lambda.config.applyEdits
+import com.lambda.config.groups.ReplaceConfig
+import com.lambda.event.events.ChatEvent
+import com.lambda.event.listener.SafeListener.Companion.listen
+import com.lambda.friend.FriendManager
+import com.lambda.module.Module
+import com.lambda.module.tag.ModuleTag
+import com.lambda.util.ChatUtils.addresses
+import com.lambda.util.ChatUtils.colors
+import com.lambda.util.ChatUtils.discord
+import com.lambda.util.ChatUtils.hex
+import com.lambda.util.ChatUtils.sexual
+import com.lambda.util.ChatUtils.slurs
+import com.lambda.util.ChatUtils.swears
+import com.lambda.util.ChatUtils.toAscii
+import com.lambda.util.NamedEnum
+import com.lambda.util.text.MessageDirection
+import com.lambda.util.text.MessageParser
+import com.lambda.util.text.MessageType
+import net.minecraft.text.Text
+
+object AntiSpam : Module(
+	name = "AntiSpam",
+	description = "Keeps your chat clean",
+	tag = ModuleTag.CHAT,
+) {
+	private val ignoreSelf by setting("Ignore Self", true)
+	private val ignoreFriends by setting("Ignore Friends", true)
+	private val fancyChats by setting("Replace Fancy Chat", false)
+	private val ignoreSystem by setting("Ignore System", false)
+	private val ignoreDms by setting("Ignore DMs", false)
+
+	private val detectSlurs = ReplaceSettings("Slurs", this, Group.Slurs)
+	private val detectSwears = ReplaceSettings("Swears", this, Group.Swears)
+	private val detectSexual = ReplaceSettings("Sexual", this, Group.Sexual)
+	private val detectDiscord = ReplaceSettings("Discord", this, Group.Discord)
+		.apply { applyEdits { editTyped(::action) { defaultValue(ReplaceConfig.ActionStrategy.Hide) } } }
+	private val detectAddresses = ReplaceSettings("Addresses", this, Group.Addresses)
+		.apply { applyEdits { editTyped(::action) { defaultValue(ReplaceConfig.ActionStrategy.Hide) } } }
+	private val detectHexBypass = ReplaceSettings("Hex", this, Group.Hex)
+		.apply { applyEdits { editTyped(::action) { defaultValue(ReplaceConfig.ActionStrategy.Hide) } } }
+	private val detectColors = ReplaceSettings("Colors", this, Group.Colors)
+		.apply { applyEdits { editTyped(::action) { defaultValue(ReplaceConfig.ActionStrategy.None) } } }
+
+	enum class Group(override val displayName: String) : NamedEnum {
+		General("General"),
+		Slurs("Slurs"),
+		Swears("Swears"),
+		Sexual("Sexual"),
+		Discord("Discord Invites"),
+		Addresses("IPs and Addresses"),
+		Hex("Hex Bypass"),
+		Colors("Color Prefixes")
+	}
+
+	init {
+		listen<ChatEvent.Message> { event ->
+			var raw = event.message.string
+			val author = MessageParser.playerName(raw)
+
+			if (
+				ignoreSystem && !MessageType.Both.matches(raw) && !MessageDirection.Both.matches(raw) ||
+				ignoreDms && MessageDirection.Receive.matches(raw) ||
+				ignoreFriends && author?.let { FriendManager.isFriend(it) } == true ||
+				ignoreSelf && MessageType.Self.matches(raw)
+			) return@listen
+
+			val slurMatches = slurs.takeIf { detectSlurs.enabled }.orEmpty().flatMap { it.findAll(raw).toList().reversed() }
+			val swearMatches = swears.takeIf { detectSwears.enabled }.orEmpty().flatMap { it.findAll(raw).toList().reversed() }
+			val sexualMatches = sexual.takeIf { detectSexual.enabled }.orEmpty().flatMap { it.findAll(raw).toList().reversed() }
+			val discordMatches = discord.takeIf { detectDiscord.enabled }.orEmpty().flatMap { it.findAll(raw).toList().reversed() }
+			val addressMatches = addresses.takeIf { detectAddresses.enabled }.orEmpty().flatMap { it.findAll(raw).toList().reversed() }
+			val hexMatches = hex.takeIf { detectHexBypass.enabled }.orEmpty().flatMap { it.findAll(raw).toList().reversed() }
+			val colorMatches = colors.takeIf { detectColors.enabled }.orEmpty().flatMap { it.findAll(raw).toList().reversed() }
+
+			var cancelled = false
+			var hasMatches = false
+
+			fun doMatch(replace: ReplaceConfig, matches: Sequence<MatchResult>) {
+				if (cancelled) return
+
+				when (replace.action) {
+					ReplaceConfig.ActionStrategy.Hide -> matches.firstOrNull()?.let { event.cancel(); cancelled = true } // If there's one detection, nuke the whole damn thang
+					ReplaceConfig.ActionStrategy.Delete -> matches
+						.forEach { raw = raw.replaceRange(it.range, ""); hasMatches = true }
+					ReplaceConfig.ActionStrategy.Replace -> matches
+						.forEach { raw = raw.replaceRange(it.range, replace.replace.block(it.value)); hasMatches = true }
+					ReplaceConfig.ActionStrategy.None -> {}
+				}
+			}
+
+			doMatch(detectSlurs, slurMatches)
+			doMatch(detectSwears, swearMatches)
+			doMatch(detectSexual, sexualMatches)
+			doMatch(detectDiscord, discordMatches)
+			doMatch(detectAddresses, addressMatches)
+			doMatch(detectHexBypass, hexMatches)
+			doMatch(detectColors, colorMatches)
+
+			if (cancelled) return@listen event.cancel()
+			if (!hasMatches) return@listen
+
+			event.message = Text.of(if (fancyChats) raw.toAscii else raw)
+		}
+	}
+
+	class ReplaceSettings(
+		name: String,
+		c: Configurable,
+		baseGroup: NamedEnum,
+	) : ReplaceConfig, SettingGroup(c) {
+		override val action by setting("$name Action Strategy", ReplaceConfig.ActionStrategy.Replace).group(baseGroup)
+		override val replace by setting("$name Replace Strategy", ReplaceConfig.ReplaceStrategy.CensorAll) { action == ReplaceConfig.ActionStrategy.Replace }.group(baseGroup)
+	}
+}

src/main/kotlin/com/lambda/module/tag/ModuleTag.kt

@@ -40,12 +40,13 @@ data class ModuleTag(override val name: String) : Nameable {
         val MOVEMENT = ModuleTag("Movement")
         val RENDER = ModuleTag("Render")
         val PLAYER = ModuleTag("Player")
+        val CHAT = ModuleTag("Chat")
         val CLIENT = ModuleTag("Client")
         val NETWORK = ModuleTag("Network")
         val DEBUG = ModuleTag("Debug")
         val HUD = ModuleTag("Hud")
 
-        val defaults = setOf(COMBAT, MOVEMENT, RENDER, PLAYER, NETWORK, CLIENT, HUD)
+        val defaults = setOf(COMBAT, MOVEMENT, RENDER, PLAYER, NETWORK, CHAT, CLIENT, HUD)
 
         val shownTags = defaults.toMutableSet()
 

src/main/kotlin/com/lambda/util/ChatUtils.kt

@@ -0,0 +1,32 @@
+/*
+ * Copyright 2025 Lambda
+ *
+ * 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 <http://www.gnu.org/licenses/>.
+ */
+
+package com.lambda.util
+
+object ChatUtils {
+	val slurs = sequenceOf("\\bch[i1l]nks?\\b", "\\bc[o0]{2}ns?\\b", "f[a@4](g{1,2}|qq)([e3il1o0]t{1,2}(ry|r[i1l]e)?)?\\b", "\\bk[il1y]k[e3](ry|r[i1l]e)?s?\\b", "\\b(s[a4]nd)?n[ila4o10][gq]{1,2}(l[e3]t|[e3]r|[a4]|n[o0]g)?s?\\b", "\\btr[a4]n{1,2}([il1][e3]|y|[e3]r)s?\\b").map { Regex(it, RegexOption.IGNORE_CASE) }
+	val swears = sequenceOf("fuck(er)?", "shit", "cunt", "puss(ie|y)", "bitch", "twat").map { Regex(it, RegexOption.IGNORE_CASE) }
+	val sexual = sequenceOf("^cum[s\\$]?$", "cumm?[i1]ng", "h[o0]rny", "mast(e|ur)b(8|ait|ate)").map { Regex(it, RegexOption.IGNORE_CASE) }
+	val discord = sequenceOf("(http(s)?:\\/\\/)?(discord)?(\\.)?gg(\\/| ).\\S{1,25}", "(http(s)?:\\/\\/)?(discord)?(\\.)?com\\/invite(\\/| ).\\S{1,25}", "(dsc)?(\\.)?gg(\\/| ).\\S{1,25}").map { Regex(it, RegexOption.IGNORE_CASE) }
+	val addresses = sequenceOf("^(?:[0-9]{1,3}\\.){3}[0-9]{1,3}(:\\d{1,5}$)?", "^(\\[?)(\\:\\:)?[0-9a-fA-F]{1,4}(\\:\\:?[0-9a-fA-F]{1,4}){0,7}(\\:\\:)?(\\])?(:\\d{1,5}$)?$").map { Regex(it, RegexOption.IGNORE_CASE) }
+	val hex = sequenceOf("\\s([A-Fa-f0-9]+){5,10}$").map { Regex(it) }
+	val colors = sequenceOf(">", "`").map { Regex(it) }
+
+	val fancyToAscii = mapOf('ᴀ' to 'a', 'ʙ' to 'b', 'c' to 'c', 'ᴅ' to 'd', 'ᴇ' to 'e', 'ꜰ' to 'f', 'ɢ' to 'g', 'ʜ' to 'h', 'ɪ' to 'i', 'ᴊ' to 'j', 'ᴋ' to 'k', 'ʟ' to 'l', 'ᴍ' to 'm', 'ɴ' to 'n', 'ᴏ' to 'o', 'ᴩ' to 'p', 'q' to 'q', 'ʀ' to 'r', 'ꜱ' to 's', 'ᴛ' to 't', 'ᴜ' to 'u', 'ᴠ' to 'v', 'ᴡ' to 'w', 'x' to 'x', 'y' to 'y', 'ᴢ' to 'z',)
+
+	val String.toAscii get() = buildString { [email protected] { append(fancyToAscii.getOrDefault(it, it)) } }
+}

src/main/kotlin/com/lambda/util/text/Detections.kt

@@ -0,0 +1,100 @@
+/*
+ * Copyright 2025 Lambda
+ *
+ * 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 <http://www.gnu.org/licenses/>.
+ */
+
+package com.lambda.util.text
+
+import baritone.api.BaritoneAPI
+import com.lambda.Lambda.mc
+import com.lambda.command.CommandRegistry
+import com.lambda.command.commands.PrefixCommand
+import kotlin.math.max
+import kotlin.text.substring
+
+val playerRegex =  "^<(.+)>".toRegex()
+
+interface Detector {
+	fun matches(input: CharSequence): Boolean
+}
+
+interface RemovableDetector {
+	fun removedOrNull(input: CharSequence): CharSequence?
+}
+
+interface PlayerDetector {
+	fun playerName(input: CharSequence): String?
+}
+
+interface RegexDetector : Detector, RemovableDetector {
+	val regexes: Array<out Regex>
+
+	fun result(input: CharSequence) = regexes.find { it.containsMatchIn(input) }
+
+	override fun matches(input: CharSequence) = regexes.any { it.containsMatchIn(input) }
+
+	override fun removedOrNull(input: CharSequence) =
+		result(input)
+			?.replace(input, "")
+			?.takeIf { it.isNotBlank() }
+}
+
+object MessageParser : PlayerDetector, RemovableDetector {
+	override fun playerName(input: CharSequence) =
+		playerRegex.find(input)?.value?.drop(1)?.dropLast(1)
+
+	override fun removedOrNull(input: CharSequence) =
+		input.replace(playerRegex, "")
+}
+
+
+enum class MessageType : Detector, PlayerDetector, RemovableDetector {
+	Self {
+		override fun matches(input: CharSequence) =
+			input.startsWith("<${mc.gameProfile.name}>")
+
+		override fun playerName(input: CharSequence): String? =
+			mc.gameProfile.name
+	},
+	Others {
+		override fun matches(input: CharSequence) = playerName(input) != null
+
+		override fun playerName(input: CharSequence) =
+			playerRegex.find(input)?.groupValues?.getOrNull(1)?.takeIf { it.isNotBlank() && it != name }?.drop(1)?.dropLast(1)
+	},
+	Both {
+		override fun matches(input: CharSequence) = input.contains(playerRegex)
+
+		override fun playerName(input: CharSequence) =
+			playerRegex.find(input)?.groupValues?.getOrNull(1)?.takeIf { it.isNotBlank() }?.drop(1)?.dropLast(1)
+	};
+
+	override fun removedOrNull(input: CharSequence) =
+		playerName(input)?.let { input.removePrefix("<$it>") }
+}
+
+enum class MessageDirection(override vararg val regexes: Regex) : RegexDetector, PlayerDetector {
+	Sent("^To (.+?): ".toRegex(RegexOption.IGNORE_CASE)),
+	Receive(
+		"^(.+?) whispers( to you)?: ".toRegex(),
+		"^\\[?(.+?)( )?->( )?.+?]?( )?:? ".toRegex(),
+		"^From (.+?): ".toRegex(RegexOption.IGNORE_CASE),
+		"^. (.+?) » .w+? » ".toRegex()
+	),
+	Both(*Sent.regexes, *Receive.regexes);
+
+	override fun playerName(input: CharSequence) =
+		result(input)?.find(input)?.groupValues?.getOrNull(1)?.takeIf { it.isNotBlank() }
+}