blob: f00e82c6f49c3390556c31c8db1e5bab92edae03 [file] [log] [blame]
import fetch from "node-fetch";
import fs, { writeFileSync, createReadStream } from "fs";
import generateFileName from "../utils/temp/generateFileName.js";
import Tesseract from "node-tesseract-ocr";
import type Discord from "discord.js";
import client from "../utils/client.js";
import { createHash } from "crypto";
import * as nsfwjs from 'nsfwjs';
import * as clamscan from 'clamscan'
import * as tf from "@tensorflow/tfjs-node";
import EmojiEmbed from "../utils/generateEmojiEmbed.js";
import getEmojiByName from "../utils/getEmojiByName.js";
import { ActionRowBuilder, ButtonBuilder, ButtonStyle } from "discord.js";
interface NSFWSchema {
nsfw: boolean;
errored?: boolean;
}
interface MalwareSchema {
safe: boolean;
errored?: boolean;
}
const model = await nsfwjs.load();
export async function testNSFW(link: string): Promise<NSFWSchema> {
const [fileName, hash] = await saveAttachment(link);
const alreadyHaveCheck = await client.database.scanCache.read(hash);
if (alreadyHaveCheck) return { nsfw: alreadyHaveCheck.data };
// const image = tf.node.decodePng()
// const result = await model.classify(image)
return { nsfw: false };
}
export async function testMalware(link: string): Promise<MalwareSchema> {
const [p, hash] = await saveAttachment(link);
const alreadyHaveCheck = await client.database.scanCache.read(hash);
if (alreadyHaveCheck) return { safe: alreadyHaveCheck.data };
const data = new URLSearchParams();
const f = createReadStream(p);
data.append("file", f.read(fs.statSync(p).size));
const result = await fetch("https://unscan.p.rapidapi.com/malware", {
method: "POST",
headers: {
"X-RapidAPI-Key": client.config.rapidApiKey,
"X-RapidAPI-Host": "unscan.p.rapidapi.com"
},
body: data
})
.then((response) =>
response.status === 200 ? (response.json() as Promise<MalwareSchema>) : { safe: true, errored: true }
)
.catch((err) => {
console.error(err);
return { safe: true, errored: true };
});
if (!result.errored) {
client.database.scanCache.write(hash, result.safe);
}
return { safe: result.safe };
}
export async function testLink(link: string): Promise<{ safe: boolean; tags: string[] }> {
const alreadyHaveCheck = await client.database.scanCache.read(link);
if (alreadyHaveCheck) return { safe: alreadyHaveCheck.data, tags: [] };
const scanned: { safe?: boolean; tags?: string[] } = await fetch("https://unscan.p.rapidapi.com/link", {
method: "POST",
headers: {
"X-RapidAPI-Key": client.config.rapidApiKey,
"X-RapidAPI-Host": "unscan.p.rapidapi.com"
},
body: `{"link":"${link}"}`
})
.then((response) => response.json() as Promise<MalwareSchema>)
.catch((err) => {
console.error(err);
return { safe: true, tags: [] };
});
client.database.scanCache.write(link, scanned.safe ?? true, []);
return {
safe: scanned.safe ?? true,
tags: scanned.tags ?? []
};
}
export async function saveAttachment(link: string): Promise<[string, string]> {
const image = await (await fetch(link)).arrayBuffer();
const fileName = generateFileName(link.split("/").pop()!.split(".").pop()!);
const enc = new TextDecoder("utf-8");
writeFileSync(fileName, new DataView(image), "base64");
return [fileName, createHash("sha512").update(enc.decode(image), "base64").digest("base64")];
}
const linkTypes = {
PHISHING: "Links designed to trick users into clicking on them.",
DATING: "Dating sites.",
TRACKERS: "Websites that store or track personal information.",
ADVERTISEMENTS: "Websites only for ads.",
FACEBOOK: "Facebook pages. (Facebook has a number of dangerous trackers. Read more on /privacy)",
AMP: "AMP pages. (AMP is a technology that allows websites to be served by Google. Read more on /privacy)",
"FACEBOOK TRACKERS": "Websites that include trackers from Facebook.",
"IP GRABBERS": "Websites that store your IP address, which shows your approximate location.",
PORN: "Websites that include pornography.",
GAMBLING: "Gambling sites, often scams.",
MALWARE: "Websites which download files designed to break or slow down your device.",
PIRACY: "Sites which include illegally downloaded material.",
RANSOMWARE: "Websites which download a program that can steal your data and make you pay to get it back.",
REDIRECTS: "Sites like bit.ly which could redirect to a malicious site.",
SCAMS: "Sites which are designed to trick you into doing something.",
TORRENT: "Websites that download torrent files.",
HATE: "Websites that spread hate towards groups or individuals.",
JUNK: "Websites that are designed to make you waste time."
};
export { linkTypes };
export async function LinkCheck(message: Discord.Message): Promise<string[]> {
const links =
message.content.match(
/https?:\/\/(www\.)?[-a-zA-Z0-9@:%._+~#=]{1,256}\.[a-zA-Z0-9()]{1,6}\b([-a-zA-Z0-9()@:%_+.~#?&//=]*)/gi
) ?? [];
const detections: { tags: string[]; safe: boolean }[] = [];
const promises: Promise<void>[] = links.map(async (element) => {
let returned;
try {
if (element.match(/https?:\/\/[a-zA-Z]+\.?discord(app)?\.(com|net)\/?/)) return; // Also matches discord.net, not enough of a bug
returned = await testLink(element);
} catch {
detections.push({ tags: [], safe: true });
return;
}
detections.push({ tags: returned.tags, safe: returned.safe });
});
await Promise.all(promises);
const detectionsTypes = detections
.map((element) => {
const type = Object.keys(linkTypes).find((type) => element.tags.includes(type));
if (type) return type;
// if (!element.safe) return "UNSAFE"
return undefined;
})
.filter((element) => element !== undefined);
return detectionsTypes as string[];
}
export async function NSFWCheck(element: string): Promise<boolean> {
try {
return (await testNSFW(element)).nsfw;
} catch {
return false;
}
}
export async function SizeCheck(element: { height: number | null; width: number | null }): Promise<boolean> {
if (element.height === null || element.width === null) return true;
if (element.height < 20 || element.width < 20) return false;
return true;
}
export async function MalwareCheck(element: string): Promise<boolean> {
try {
return (await testMalware(element)).safe;
} catch {
return true;
}
}
export function TestString(string: string, soft: string[], strict: string[], enabled?: boolean): {word: string, type: string} | null {
if (!enabled) return null;
for (const word of strict) {
if (string.toLowerCase().includes(word)) {
return { word: word, type: "strict" };
}
}
for (const word of soft) {
for (const word2 of string.match(/[a-z]+/gi) ?? []) {
if (word2 === word) {
return { word: word, type: "soft" };
}
}
}
return null;
}
export async function TestImage(url: string): Promise<string | null> {
const text = await Tesseract.recognize(url, {
lang: "eng",
oem: 1,
psm: 3
});
return text;
}
export async function doMemberChecks(member: Discord.GuildMember, guild: Discord.Guild): Promise<void> {
if (member.user.bot) return;
const guildData = await client.database.guilds.read(guild.id);
if (!guildData.logging.staff.channel) return;
const [ loose, strict ] = [guildData.filters.wordFilter.words.loose, guildData.filters.wordFilter.words.strict];
// Does the username contain filtered words
const usernameCheck = TestString(member.user.username, loose, strict, guildData.filters.wordFilter.enabled);
// Does the nickname contain filtered words
const nicknameCheck = TestString(member.nickname ?? "", loose, strict, guildData.filters.wordFilter.enabled);
// Does the profile picture contain filtered words
const avatarTextCheck = TestString(await TestImage(member.user.displayAvatarURL({ forceStatic: true })) ?? "", loose, strict, guildData.filters.wordFilter.enabled);
// Is the profile picture NSFW
const avatarCheck = guildData.filters.images.NSFW && await NSFWCheck(member.user.displayAvatarURL({ forceStatic: true }));
// Does the username contain an invite
const inviteCheck = guildData.filters.invite.enabled && member.user.username.match(/discord\.gg\/[a-zA-Z0-9]+/gi) !== null;
// Does the nickname contain an invite
const nicknameInviteCheck = guildData.filters.invite.enabled && member.nickname?.match(/discord\.gg\/[a-zA-Z0-9]+/gi) !== null;
if (usernameCheck !== null || nicknameCheck !== null || avatarCheck || inviteCheck || nicknameInviteCheck || avatarTextCheck !== null) {
const infractions = [];
if (usernameCheck !== null) {
infractions.push(`Username contains a ${usernameCheck.type}ly filtered word (${usernameCheck.word})`);
} if (nicknameCheck !== null) {
infractions.push(`Nickname contains a ${nicknameCheck.type}ly filtered word (${nicknameCheck.word})`);
} if (avatarCheck) {
infractions.push("Profile picture is NSFW");
} if (inviteCheck) {
infractions.push("Username contains an invite");
} if (nicknameInviteCheck) {
infractions.push("Nickname contains an invite");
} if (avatarTextCheck !== null) {
infractions.push(`Profile picture contains a ${avatarTextCheck.type}ly filtered word: ${avatarTextCheck.word}`);
}
if (infractions.length === 0) return;
// This is bad - Warn in the staff notifications channel
const filter = getEmojiByName("ICONS.FILTER");
const channel = guild.channels.cache.get(guildData.logging.staff.channel) as Discord.TextChannel;
const embed = new EmojiEmbed()
.setTitle("Member Flagged")
.setEmoji("ICONS.FLAGS.RED")
.setStatus("Danger")
.setDescription(`**Member:** ${member.user.username} (<@${member.user.id}>)\n\n` +
infractions.map((element) => `${filter} ${element}`).join("\n")
)
await channel.send({
embeds: [embed],
components: [new ActionRowBuilder<ButtonBuilder>().addComponents(...[
new ButtonBuilder()
.setCustomId(`mod:warn:${member.user.id}`)
.setLabel("Warn")
.setStyle(ButtonStyle.Primary),
new ButtonBuilder()
.setCustomId(`mod:mute:${member.user.id}`)
.setLabel("Mute")
.setStyle(ButtonStyle.Primary),
new ButtonBuilder()
.setCustomId(`mod:kick:${member.user.id}`)
.setLabel("Kick")
.setStyle(ButtonStyle.Danger),
new ButtonBuilder()
.setCustomId(`mod:ban:${member.user.id}`)
.setLabel("Ban")
.setStyle(ButtonStyle.Danger),
].concat((usernameCheck !== null || nicknameCheck !== null || avatarTextCheck !== null) ? [
new ButtonBuilder()
.setCustomId(`mod:nickname:${member.user.id}`)
.setLabel("Change Name")
.setStyle(ButtonStyle.Primary)
] : []))]
});
}
}