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AntiSpam: Prevent heavy unicode & utf16/32 from lagging the game #425

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Merged
merged 2 commits into from
Dec 12, 2022
Merged

AntiSpam: Prevent heavy unicode & utf16/32 from lagging the game #425

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f9313f5
lag prevent
Edouard127 Dec 2, 2022
e9f44b0
Change to safeListener
Avanatiker Dec 12, 2022
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23 changes: 20 additions & 3 deletions src/main/kotlin/com/lambda/client/module/modules/chat/AntiSpam.kt
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Original file line number Diff line number Diff line change
@@ -1,12 +1,12 @@
package com.lambda.client.module.modules.chat

import com.lambda.client.LambdaMod
import com.lambda.client.event.listener.listener
import com.lambda.client.module.Category
import com.lambda.client.module.Module
import com.lambda.client.util.text.MessageDetection
import com.lambda.client.util.text.MessageSendHelper
import com.lambda.client.util.text.SpamFilters
import com.lambda.client.util.threads.safeListener
import net.minecraft.util.text.TextComponentString
import net.minecraftforge.client.event.ClientChatReceivedEvent
import java.util.concurrent.ConcurrentHashMap
Expand All @@ -32,6 +32,8 @@ object AntiSpam : Module(
private val specialCharBegin = setting("Special Begin", true, { page == Page.TYPE })
private val greenText = setting("Green Text", false, { page == Page.TYPE })
private val fancyChat by setting("Fancy Chat", false, { page == Page.TYPE })
private val lagMessage by setting("Lag Message", true, { page == Page.TYPE })
private val thresholdLagMessage by setting("Threshold Lag", 256, 256..1024, 1, { page == Page.TYPE && lagMessage }) // Is 1024 the max?

/* Page Two */
private val aggressiveFiltering by setting("Aggressive Filtering", true, { page == Page.SETTINGS })
Expand Down Expand Up @@ -82,8 +84,10 @@ object AntiSpam : Module(
messageHistory.clear()
}

listener<ClientChatReceivedEvent> { event ->
if (mc.player == null) return@listener
safeListener<ClientChatReceivedEvent> { event ->
if (lagMessage && isLagMessage(event.message.unformattedText)) {
event.isCanceled = true
}

messageHistory.values.removeIf { System.currentTimeMillis() - it > 600000 }

Expand Down Expand Up @@ -131,6 +135,16 @@ object AntiSpam : Module(
}
}

private fun isLagMessage(message: String): Boolean {
return if (!filterOwn && isOwn(message)
|| !filterDMs && MessageDetection.Direct.ANY detect message
|| !filterServer && MessageDetection.Server.ANY detect message) {
false
} else {
message.getBytes() > thresholdLagMessage
}
}

private fun detectSpam(message: String): String? {
for ((key, value) in settingMap) {
findPatterns(value, message)?.let {
Expand Down Expand Up @@ -169,6 +183,9 @@ object AntiSpam : Module(
return isDuplicate
}

private fun String.getBytes(): Int {
return this.toByteArray().size
}

private fun isOwn(message: String): Boolean {
/* mc.player is null when the module is being registered, so this matcher isn't added alongside the other FilterPatterns */
Expand Down