From dc6755eb198fa521e253ffc16d6e9b06ecae8761 Mon Sep 17 00:00:00 2001
From: Lukas | AstroGD <lukas@astrogd.eu>
Date: Thu, 24 Nov 2022 17:27:56 +0100
Subject: [PATCH] censoring

---
 index.ts                    |  1 +
 package.json                |  2 +-
 src/events/channelUpdate.ts | 85 +++++++++++++++++++++++++++++++++++++
 src/events/index.ts         |  1 +
 4 files changed, 88 insertions(+), 1 deletion(-)
 create mode 100644 src/events/channelUpdate.ts
 create mode 100644 src/events/index.ts

diff --git a/index.ts b/index.ts
index ce68056..1775a40 100644
--- a/index.ts
+++ b/index.ts
@@ -6,6 +6,7 @@ swapConsole();
 
 import "./src/client/init";
 import "./src/commands";
+import "./src/events";
 import client from "./src/client";
 
 function shutdown() {
diff --git a/package.json b/package.json
index 8c25db0..a6811c9 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "eu.astrogd.white-leopard",
-  "version": "1.0.0-alpha.3",
+  "version": "1.0.0-alpha.4",
   "description": "A Discord bot that checks channel names for blacklisted words and reverts the changes if necessary",
   "main": "build/index.js",
   "scripts": {
diff --git a/src/events/channelUpdate.ts b/src/events/channelUpdate.ts
new file mode 100644
index 0000000..9d41d2b
--- /dev/null
+++ b/src/events/channelUpdate.ts
@@ -0,0 +1,85 @@
+import client from "../client";
+import { Events } from "discord.js";
+import { getGuildSetting, isPremiumActive } from "../tools/data";
+import { Badword, database } from "../data";
+import { IsNull } from "typeorm";
+import getDefaultEmbed, { getFailedEmbed } from "../tools/defaultEmbeds";
+import { getGuildChannel } from "../tools/discord";
+import { Color, Emoji } from "../tools/design";
+
+client.on(Events.ChannelUpdate, async (oldChannel, newChannel) => {
+    if (oldChannel.isDMBased() || newChannel.isDMBased()) return;
+    const name = newChannel.name.toLowerCase();
+    if (name === "censored") return;
+
+    const guild = oldChannel.guild;
+    const settings = await getGuildSetting(guild.id);
+    const isPremium = isPremiumActive(settings.isPremiumUntil);
+
+    const globalBlocklist = await database.getRepository(Badword).find({
+        where: {
+            guildID: IsNull()
+        }
+    });
+    const localBlocklist = await database.getRepository(Badword).find({
+        where: {
+            guildID: guild.id
+        }
+    });
+
+    const blocklist = [...globalBlocklist, ...localBlocklist];
+    let found: string | null = null;
+    
+    for (let i = 0; i < blocklist.length; i++) {
+        const word = blocklist[i];
+        if (!word) continue;
+
+        if (!name.includes(word.value)) continue;
+        found = word.value;
+        break;
+    }
+
+    if (found === null) return;
+
+    const logChannel = settings.notificationChannelID ? await getGuildChannel(guild.id, settings.notificationChannelID) : null;
+
+    try {
+        await newChannel.setName("CENSORED", `[Automated] Detected blocked word in channel name. Name has been censored`);
+    } catch (error) {
+        if (!logChannel || !logChannel.isTextBased()) return;
+        const embed = getFailedEmbed();
+        embed.setDescription(`Couldn't censor <#${newChannel.id}> (${newChannel.id}): ${error instanceof Error ? error.message : error}`);
+        if (isPremium) embed.addFields({
+            name: "Detected banned word:",
+            value: `||${found}||`
+        },{
+            name: "Old channel name:",
+            value: `||${name}||`,
+            inline: true
+        });
+
+        logChannel.send({
+            embeds: [embed]
+        }).catch();
+        return;
+    }
+
+    if (!logChannel || !logChannel.isTextBased()) return;
+    const embed = getDefaultEmbed();
+    embed.setTitle(`${Emoji.SECURITY_CHALLENGE_FAILED} Blocked word detected`);
+    embed.setDescription(`<#${newChannel.id}> (${newChannel.id}) has been renamed because its name contained a blocked word.`);
+    embed.setColor(Color.WARNING_YELLOW);
+    if (isPremium) embed.addFields({
+        name: "Detected banned word:",
+        value: `||${found}||`,
+        inline: true
+    },{
+        name: "Old channel name:",
+        value: `||${name}||`,
+        inline: true
+    });
+
+    logChannel.send({
+        embeds: [embed]
+    }).catch();
+});
\ No newline at end of file
diff --git a/src/events/index.ts b/src/events/index.ts
new file mode 100644
index 0000000..f427567
--- /dev/null
+++ b/src/events/index.ts
@@ -0,0 +1 @@
+import "./channelUpdate";
\ No newline at end of file