From ac99e8373d79f2bf159d31eaa88ddf3557dd3dd0 Mon Sep 17 00:00:00 2001
From: Xmader <xmader@outlook.com>
Date: Wed, 18 Nov 2020 13:57:56 -0500
Subject: [PATCH] fix: auth magics

---
 src/file.ts         | 23 ++++++++++++++---------
 src/webpack-hook.ts |  2 +-
 2 files changed, 15 insertions(+), 10 deletions(-)

diff --git a/src/file.ts b/src/file.ts
index bef7308..be4574a 100644
--- a/src/file.ts
+++ b/src/file.ts
@@ -5,11 +5,11 @@ import { onPackLoad, webpackContext } from './webpack-hook'
 
 type FileType = 'img' | 'mp3' | 'midi'
 
-const AUTH_REG = /[0-9a-f]{40}/
+const AUTH_REG = /,(function\(\)\{var \w=Array.prototype.slice.*?)\)\[/
 enum PACK_ID {
-  img = 9,
-  midi = 118,
-  mp3 = 74,
+  img = 'F/w+',
+  midi = 'yihj',
+  mp3 = '2oYV',
 }
 
 /**
@@ -18,14 +18,19 @@ enum PACK_ID {
 const magicHookConstr = (type: FileType) => {
   // request pack
   // eslint-disable-next-line no-void, @typescript-eslint/no-unsafe-return
-  void webpackContext.then((ctx) => ctx.e(PACK_ID[type])).then(console.log)
+  void webpackContext.then((ctx) => ctx.e(PACK_ID[type]))
 
   return new Promise<string>((resolve) => {
     onPackLoad((pack) => {
       if (pack[0].includes(PACK_ID[type])) {
         Object.values(pack[1]).forEach((mod) => {
           const m = mod.toString().match(AUTH_REG)
-          if (m && m[0]) resolve(m[0])
+          if (m) {
+            const code = m[1]
+            // eslint-disable-next-line no-new-func, @typescript-eslint/no-implied-eval
+            const magic = Function(`return (${code})`)()
+            resolve(magic)
+          }
         })
       }
     })
@@ -33,9 +38,9 @@ const magicHookConstr = (type: FileType) => {
 }
 
 const magics: Record<FileType, Promise<string>> = {
-  img: Promise.resolve('8c022bdef45341074ce876ae57a48f64b86cdcf5'),
-  midi: Promise.resolve('38fb9efaae51b0c83b5bb5791a698b48292129e7'),
-  mp3: Promise.resolve('63794e5461e4cfa046edfbdddfccc1ac16daffd2'),
+  img: magicHookConstr('img'),
+  midi: magicHookConstr('midi'),
+  mp3: magicHookConstr('mp3'),
 }
 
 const getApiUrl = (type: FileType, index: number): string => {
diff --git a/src/webpack-hook.ts b/src/webpack-hook.ts
index 4cb7c38..5db01ab 100644
--- a/src/webpack-hook.ts
+++ b/src/webpack-hook.ts
@@ -9,7 +9,7 @@ interface Module {
   (module, exports, __webpack_require__): void;
 }
 
-type WebpackJson = [number[], { [id: string]: Module }, any[]?][]
+type WebpackJson = [(number | string)[], { [id: string]: Module }, any[]?][]
 
 const moduleLookup = (id: string, globalWebpackJson: WebpackJson) => {
   const pack = globalWebpackJson.find(x => x[1][id])!