81 lines
2.1 KiB
TypeScript
81 lines
2.1 KiB
TypeScript
/* eslint-disable @typescript-eslint/no-unsafe-return */
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import scoreinfo from './scoreinfo'
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const AUTH_MODULE_ID = 'FNf8'
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type FileType = 'img' | 'mp3' | 'midi'
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const getApiUrl = (type: FileType, index: number): string => {
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// proxy
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return `https://musescore.now.sh/api/jmuse?id=${scoreinfo.id}&type=${type}&index=${index}`
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}
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interface Module {
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(module, exports, __webpack_require__): void;
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}
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/**
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* Retrieve (webpack_require) a module from the page's webpack package
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*
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* I know this is super hacky.
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*/
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const webpackHook = (moduleId: string, moduleOverrides: { [id: string]: Module } = {}, globalWebpackJson = window['webpackJsonpmusescore']) => {
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const moduleLookup = (id: string) => {
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const pack = globalWebpackJson.find(x => x[1][id])
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return pack[1][id]
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}
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const t = Object.assign((id: string, override = true) => {
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const r: any = {}
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const m: Module = (override && moduleOverrides[id])
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? moduleOverrides[id]
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: moduleLookup(id)
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m(r, r, t)
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if (r.exports) return r.exports
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return r
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}, {
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d (exp, name, fn) {
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return Object.prototype.hasOwnProperty.call(exp, name) ||
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Object.defineProperty(exp, name, { enumerable: true, get: fn })
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},
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n (e) {
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return e.__esModule ? () => e.default : () => e
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},
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r (r) {
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Object.defineProperty(r, '__esModule', { value: true })
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},
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e () {
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return Promise.resolve()
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},
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})
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return t(moduleId)
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}
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const getApiAuth = (type: FileType, index: number): string => {
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const authModule = webpackHook(AUTH_MODULE_ID, {
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'6Ulw' (_, r, t) { // override
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t.d(r, 'a', () => {
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return type
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})
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},
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})
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const fn: (id: number, type: string, index: number) => string = authModule.a()
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return fn(scoreinfo.id, type, index)
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}
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export const getFileUrl = async (type: FileType, index = 0): Promise<string> => {
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const url = getApiUrl(type, index)
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const auth = getApiAuth(type, index)
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const r = await fetch(url, {
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headers: {
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Authorization: auth,
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},
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})
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const { info } = await r.json()
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return info.url as string
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}
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