Lightcord/BetterDiscordApp/src/modules/pluginCertifier.js

267 lines
12 KiB
JavaScript

import nodeFetch from "node-fetch"
import * as electron from "electron"
import * as crypto from "crypto"
import BDV2 from "./v2"
import tooltipWrap from "../ui/tooltipWrap"
import Utils from "./utils"
import { createReadStream } from "fs"
import { basename } from "path"
const cache = {}
const cache2 = {}
export default new class PluginCertifier {
constructor(){}
patch(attachment, id){
process.nextTick(() => {
processAttachment(attachment, id)
})
}
start(){
}
isTrusted(hash){
return cache[hash] && !cache[hash].suspect
}
}
export function checkViruses(hash, data, resultCallback, removeCallback){
data = data.toString("utf8").split(/[^\w\d]+/g)
let isHarmful = false
for(let keyword of data){
for(let oof of [
"token",
"email",
"phone",
"MFA",
"2fa",
"process",
"child_process",
"localStorage",
"eval",
"getGlobal",
"BrowserWindow"
]){
if(keyword.toLowerCase().includes(oof.toLowerCase())){
isHarmful = "token stealer/virus"
break
}
}
if(isHarmful)break
}
if(!isHarmful){
/**
* @type {string}
*/
const no_comments = data.replace(/\/\*[\s\S]*?\*\/|([^\\:]|^)\/\/.*$/gm, "").trim()// removing the META comment from plugins
if((/var [\w\d_$]+=\["/gi).test(no_comments)){
isHarmful = "obfuscation/hidden code"
}
if(!isHarmful){
const regexps = [
/** hexadecimal */
/_0x\w{4}\('0x[\dabcdef]+'\)/g,
/_0x\w{4}\('0x[\dabcdef]+'[, ]+'[^']{4}'\)/g, // _0x8db7('0x0', 'x1]f')
/** mangled */
/\w+\('0x[\dabcdef]+'\)/g, // b('0x0')
/\w+\('0x[\dabcdef]+'[, ]+'[^']{4}'\)/g, // b('0x0', 'x1]f')
]
for(let regex of regexps){
if(isHarmful)break
isHarmful = regex.test(no_comments) ? "obfuscation/hidden code" : false
}
}
}
if(!isHarmful)return removeCallback()
cache[hash] = {
suspect: true,
name: hashToUrl[hash].split("/").pop(),
type: hashToUrl[hash].endsWith(".js") ? "Plugin" : "Theme",
harm: isHarmful
}
console.log(`Found potentially dangerous ${cache[hash].type.toLowerCase()}: ${cache[hash].name}`)
resultCallback(cache[hash])
}
const hashToUrl = {}
export function checkHash(hash, data, filename, resultCallback, removeCallback){
console.log(`File: ${filename} hash: ${hash}`)
if(!cache[hash]){
nodeFetch("https://cdn.jsdelivr.net/gh/Lightcord/filehashes@master/hashes/"+hash, { // Using node-fetch to bypass cors
headers: {
"User-Agent": electron.remote.getCurrentWebContents().userAgent // have to set user-agent
}
}).then(async res => {
if(res.status !== 200){
if(filename.endsWith(".theme.css"))return removeCallback()
return checkViruses(hash, data, resultCallback, wrongCallback)
}
const result = await res.json()
cache[hash] = result
resultCallback(result)
}).catch(()=>{})
}else{
const result = cache[hash]
resultCallback(result)
}
}
export function processFile(__path, resultCallback, removeCallback){
const hash = crypto.createHash("sha256")
let data = Buffer.alloc(0)
createReadStream(__path).on("data", chunk => {
data = Buffer.concat([data, chunk])
hash.update(chunk)
}).on("end", () => {
const hashResult = hash.digest("hex")
hashToUrl[hashResult] = __path
checkHash(hashResult, data, basename(__path), resultCallback, removeCallback)
})
}
export function processAttachment(attachment, id){
if(!document.getElementById(id))return
if(!attachment.url.startsWith("https://cdn.discordapp.com/"))return document.getElementById(id).remove()
if(!attachment.filename.endsWith(".plugin.js") && !attachment.filename.endsWith(".theme.css"))return document.getElementById(id).remove()
nodeFetch(attachment.url, {
headers: {
"User-Agent": electron.remote.getCurrentWebContents().userAgent
}
}).then(res => {
if(res.status !== 200)throw new Error("File doesn't exist.")
const hash = crypto.createHash("sha256")
let data = Buffer.alloc(0)
res.body.on("data", chunk => {
data = Buffer.concat([data, chunk])
hash.update(chunk)
})
res.body.on("end", () => {
const hashResult = hash.digest("hex")
cache2[attachment.url] = hashResult
hashToUrl[hashResult] = attachment.url
checkHash(hashResult, data, attachment.filename, (result) => {
renderToElements(id, result, attachment.filename)
}, () => {
document.getElementById(id).remove()
})
})
}).catch(()=>{})
}
let flowerStarModule = BDModules.get(e => e.flowerStarContainer)[0]
let childModule = BDModules.get(e => e.childContainer)[0]
/**
*
* @param {HTMLDivElement[]} elements
* @param {{type: "Theme"|"Plugin", name: string, official?: boolean}|{suspect:true, type: "Theme"|"Plugin", name: string, harm: string}} result
*/
function renderToElements(id, result, filename){
const div = document.getElementById(id)
if(!div || div.childNodes.length > 0)return // already certified/div does not exist anymore.
if(!flowerStarModule)flowerStarModule = BDModules.get(e => e.flowerStarContainer)[0]
if(!childModule)childModule = BDModules.get(e => e.childContainer)[0]
console.log(result)
if(result.suspect){
try{
div.parentNode.style.borderColor = "rgb(240, 71, 71)"
/**
*
* @param {HTMLElement} node
*/
let nextNode = (node) => {
for(let child of node.children){
if(child.tagName === "A"){
child.addEventListener("click", (e) => {
e.preventDefault()
e.stopImmediatePropagation()
Utils.showConfirmationModal(
"Are you sure you want to download this ?",
"The "+result.type.toLowerCase()+" **"+filename+"** might be dangerous **("+result.harm+")**. \n\n**We don't recommand to download it**. However, you can still do it below.",
{
confirmText: "Download Anyway",
cancelText: "Don't !",
danger: true,
onCancel: () => {},
onConfirm: () => {
electron.remote.shell.openExternal(child.href)
}
}
)
})
}else if(["div"].includes(child.tagName.toLowerCase())){
nextNode(child)
}
}
}
nextNode(div.parentNode)
}catch(e){
console.error(e)
}
BDV2.reactDom.render(BDV2.react.createElement(tooltipWrap, {text: result.type+" "+result.name+" is potentially dangerous."},
BDV2.react.createElement("div", {className: flowerStarModule.flowerStarContainer, style: {width: "16px", height: "16px"}},
BDV2.react.createElement("svg", {className: BDModules.get(e => e.svg)[0].svg, "aria-hidden":"false",width:"16px",height:"16px",viewBox:"0 0 40 32"},
BDV2.react.createElement("rect", {
x:"0",
y:"0",
width:"32",
height:"32",
mask:"url(#svg-mask-avatar-status-round-32)",
fill:"#f04747",
mask:"url(#svg-mask-status-dnd)",
className:BDModules.get(e => e.pointerEvents)[0].pointerEvents
})
)
)
), div)
}else if(!result.official){
div.parentNode.style.borderColor = "#4087ed"
BDV2.reactDom.render(BDV2.react.createElement(tooltipWrap, {text: result.type+" "+result.name+" is certified by Lightcord."},
BDV2.react.createElement("div", {className: flowerStarModule.flowerStarContainer, style: {width: "16px", height: "16px"}},
BDV2.react.createElement("svg", {className: flowerStarModule.flowerStar, "aria-hidden":"false",width:"16px",height:"16px",viewBox:"0 0 16 15.2"},
BDV2.react.createElement("path", {fill:"#4f545c", "fill-rule":"evenodd",d:"m16 7.6c0 .79-1.28 1.38-1.52 2.09s.44 2 0 2.59-1.84.35-2.46.8-.79 1.84-1.54 2.09-1.67-.8-2.47-.8-1.75 1-2.47.8-.92-1.64-1.54-2.09-2-.18-2.46-.8.23-1.84 0-2.59-1.54-1.3-1.54-2.09 1.28-1.38 1.52-2.09-.44-2 0-2.59 1.85-.35 2.48-.8.78-1.84 1.53-2.12 1.67.83 2.47.83 1.75-1 2.47-.8.91 1.64 1.53 2.09 2 .18 2.46.8-.23 1.84 0 2.59 1.54 1.3 1.54 2.09z"})
),
BDV2.react.createElement("div", {className: childModule.childContainer},
BDV2.react.createElement("svg", {"aria-hidden":"false",width:"16px",height:"16px",viewBox:"0 0 16 15.2"},
BDV2.react.createElement("path", {fill:"#ffffff",d:"M7.4,11.17,4,8.62,5,7.26l2,1.53L10.64,4l1.36,1Z"})
)
)
)
), div)
}else{
div.parentNode.style.borderColor = "#4087ed"
BDV2.reactDom.render(BDV2.react.createElement(tooltipWrap, {text: result.type+" "+result.name+" was made by the developers of Lightcord.",style:"brand"},
BDV2.react.createElement("div", {className: flowerStarModule.flowerStarContainer, style: {width: "16px", height: "16px"}},
BDV2.react.createElement("svg", {className: flowerStarModule.flowerStar, "aria-hidden":"false",width:"16px",height:"16px",viewBox:"0 0 16 15.2",stroke:"#36393f",style:{color:"#4087ed"}},
BDV2.react.createElement("path", {fill:"currentColor", "fill-rule":"evenodd",d:"m16 7.6c0 .79-1.28 1.38-1.52 2.09s.44 2 0 2.59-1.84.35-2.46.8-.79 1.84-1.54 2.09-1.67-.8-2.47-.8-1.75 1-2.47.8-.92-1.64-1.54-2.09-2-.18-2.46-.8.23-1.84 0-2.59-1.54-1.3-1.54-2.09 1.28-1.38 1.52-2.09-.44-2 0-2.59 1.85-.35 2.48-.8.78-1.84 1.53-2.12 1.67.83 2.47.83 1.75-1 2.47-.8.91 1.64 1.53 2.09 2 .18 2.46.8-.23 1.84 0 2.59 1.54 1.3 1.54 2.09z"})
),
BDV2.react.createElement("div", {className: childModule.childContainer},
BDV2.react.createElement("svg", {"aria-hidden":"false",width:"16px",height:"16px",viewBox:"0 0 16 15.2"},
BDV2.react.createElement("path", {fill:"#ffffff",d:"M10.7,5.28a2.9,2.9,0,0,0-2.11.86.11.11,0,0,0,0,.16l1.05.94a.11.11,0,0,0,.15,0,1.27,1.27,0,0,1,.9-.33c.65,0,.65.73.65.73a.64.64,0,0,1-.65.65,1.73,1.73,0,0,1-1.18-.54c-.31-.26-.36-.32-.73-.66S7.06,5.28,5.65,5.28A2.26,2.26,0,0,0,3.37,7.56,2.59,2.59,0,0,0,3.82,9a2.18,2.18,0,0,0,1.83.89,2.94,2.94,0,0,0,2.1-.81.11.11,0,0,0,0-.16L6.74,8A.11.11,0,0,0,6.6,8a1.58,1.58,0,0,1-.94.29h0A.71.71,0,0,1,5,7.56H5a.63.63,0,0,1,.65-.64c.71,0,1.42.75,1.94,1.27.75.76,1.66,1.79,3.11,1.74A2.28,2.28,0,0,0,13,7.64a2.59,2.59,0,0,0-.45-1.47A2.14,2.14,0,0,0,10.7,5.28Z"})
)
)
)
), div)
}
}