gestion/events/antiraid.js/GuildBanAdd.js

const sqlite3 = require('sqlite3').verbose();
const db = new sqlite3.Database('myDatabase.db');
const { Events, AuditLogEvent, PermissionsBitField, EmbedBuilder  } = require('discord.js');
const { getPermissionLevel } = require('../../fonction/getPermissionLevel');

const banMap = new Map();
setInterval(() => {
    banMap.clear();
}, 10 * 60 * 1000); 

module.exports = {
    name: Events.GuildBanAdd,
    async execute(ban, client) {
        const botId = client.user.id;
        const guildId = ban.guild.id;
        const guild = ban.guild;
        const fetchedLogs = await guild.fetchAuditLogs({
            type: AuditLogEvent.MemberBanAdd,
            limit: 1,
        });

        const firstEntry = fetchedLogs.entries.first();
        const user = guild.members.cache.get(`${firstEntry.executor.id}`);
        let data = await new Promise((resolve, reject) => {
            db.get('SELECT value FROM gestion WHERE id = ?', [botId], (err, row) => {
                if (err) {
                    console.error(err.message);
                    reject(err);
                }
                resolve(row ? JSON.parse(row.value) : {});
            });
        });
        const antibanConfig = data[guildId]?.antiban;
        if (!antibanConfig || antibanConfig.type === 'off') {
            return;
        }
        data.whitelist = data.whitelist || {};
        data.whitelist[guildId] = data.whitelist[guildId] || {};
        const whitelist = data.whitelist[guildId];
        const type = antibanConfig.type;
        const banLimit = antibanConfig.number;
        const permlevel = await getPermissionLevel(user, client);
        try {
            if (type === "whitelist") {
                if (permlevel >= 10) return;
                if (whitelist[user.id]) return;
                if (!banMap.has(guildId)) {
                    banMap.set(guildId, new Map());
                }
                const guildBanMap = banMap.get(guildId);
                guildBanMap.set(user.id, (guildBanMap.get(user.id) || 0) + 1);
                if (guildBanMap.get(user.id) >= banLimit) {
                    punish(user, antibanConfig.action, guild);
                }
            } else if (type === "owner") {
                if (permlevel >= 10) return;
                if (!banMap.has(guildId)) {
                    banMap.set(guildId, new Map());
                }
                const guildBanMap = banMap.get(guildId);
                guildBanMap.set(user.id, (guildBanMap.get(user.id) || 0) + 1);
                if (guildBanMap.get(user.id) >= banLimit) {
                    punish(user, antibanConfig.action, guild);
                }
            } else if (type === "buyer") {
                if (permlevel === 11) return;
                if (!banMap.has(guildId)) {
                    banMap.set(guildId, new Map());
                }
                const guildBanMap = banMap.get(guildId);
                guildBanMap.set(user.id, (guildBanMap.get(user.id) || 0) + 1);
                if (guildBanMap.get(user.id) >= banLimit) {
                    punish(user, antibanConfig.action, guild);
                }
        
            }
        } catch (err) {
        }
    },
};

async function punish(user, action, guild) {
    switch (action) {
        case 'ban':
            await guild.members.ban(user, { reason: 'Anti-role protection' });
            break;
        case 'kick':
            await guild.members.kick(user, 'Anti-role protection');
            break;
        case 'derank':
            const dangerousPermissions = [
                PermissionsBitField.Flags.Administrator,
                PermissionsBitField.Flags.ManageGuild,
                PermissionsBitField.Flags.ManageRoles,
                PermissionsBitField.Flags.ManageChannels,
                PermissionsBitField.Flags.KickMembers,
                PermissionsBitField.Flags.BanMembers,
                PermissionsBitField.Flags.ManageWebhooks,
                PermissionsBitField.Flags.MuteMembers,
                PermissionsBitField.Flags.MentionEveryone,
                PermissionsBitField.Flags.ManageEvents,
                PermissionsBitField.Flags.ManageThreads,
            ];
            const member = guild.members.cache.get(user.id);
            if (member) {
                const rolesToRemove = member.roles.cache.filter(role => dangerousPermissions.includes(role.permissions.bitfield));
                await member.roles.remove(rolesToRemove, 'Anti-role protection');
            }
            break;
        case 'nothing':
            break;
    }
}