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import type { WebpackInstance } from "discord-types/other";
export let wreq: WebpackInstance;
export let cache: WebpackInstance["c"];
export type FilterFn = (mod: any) => boolean;
export const filters = {
byProps: (props: string[]): FilterFn =>
props.length === 1
? m => m[props[0]] !== void 0
: m => props.every(p => m[p] !== void 0),
byDisplayName: (deezNuts: string): FilterFn => m => m.default?.displayName === deezNuts,
byCode: (...code: string[]): FilterFn => m => {
if (typeof m !== "function") return false;
const s = Function.prototype.toString.call(m);
for (const c of code) {
if (!s.includes(c)) return false;
}
return true;
},
};
export const subscriptions = new Map<FilterFn, CallbackFn>();
export const listeners = new Set<CallbackFn>();
export type CallbackFn = (mod: any) => void;
export function _initWebpack(instance: typeof window.webpackChunkdiscord_app) {
if (cache !== void 0) throw "no.";
wreq = instance.push([[Symbol()], {}, (r) => r]);
cache = wreq.c;
instance.pop();
}
export function find(filter: FilterFn, getDefault = true) {
if (typeof filter !== "function")
throw new Error("Invalid filter. Expected a function got", filter);
for (const key in cache) {
const mod = cache[key];
if (!mod?.exports) continue;
if (filter(mod.exports))
return mod.exports;
if (typeof mod.exports !== "object") continue;
if (mod.exports.default && filter(mod.exports.default))
return getDefault ? mod.exports.default : mod.exports;
// is 3 is the longest obfuscated export?
// the length check makes search about 20% faster
for (const nestedMod in mod.exports) if (nestedMod.length < 3) {
const nested = mod.exports[nestedMod];
if (nested && filter(nested)) return nested;
}
}
return null;
}
// TODO fix
export function findAll(filter: FilterFn, getDefault = true) {
if (typeof filter !== "function") throw new Error("Invalid filter. Expected a function got", filter);
const ret = [] as any[];
for (const key in cache) {
const mod = cache[key];
if (mod?.exports && filter(mod.exports)) ret.push(mod.exports);
if (mod?.exports?.default && filter(mod.exports.default)) ret.push(getDefault ? mod.exports.default : mod.exports);
}
return ret;
}
export function findByProps(...props: string[]) {
return find(filters.byProps(props));
}
export function findAllByProps(...props: string[]) {
return findAll(filters.byProps(props));
}
export function findByDisplayName(deezNuts: string) {
return find(filters.byDisplayName(deezNuts));
}
export function waitFor(filter: string | string[] | FilterFn, callback: CallbackFn) {
if (typeof filter === "string") filter = filters.byProps([filter]);
else if (Array.isArray(filter)) filter = filters.byProps(filter);
else if (typeof filter !== "function") throw new Error("filter must be a string, string[] or function, got", filter);
const existing = find(filter!);
if (existing) return void callback(existing);
subscriptions.set(filter, callback);
}
export function addListener(callback: CallbackFn) {
listeners.add(callback);
}
export function removeListener(callback: CallbackFn) {
listeners.delete(callback);
}
/**
* Search modules by keyword. This searches the factory methods,
* meaning you can search all sorts of things, displayName, methodName, strings somewhere in the code, etc
* @param filters One or more strings or regexes
* @returns Mapping of found modules
*/
export function search(...filters: Array<string | RegExp>) {
const results = {} as Record<number, Function>;
const factories = wreq.m;
outer:
for (const id in factories) {
const factory = factories[id];
const str: string = factory.toString();
for (const filter of filters) {
if (typeof filter === "string" && !str.includes(filter)) continue outer;
if (filter instanceof RegExp && !filter.test(str)) continue outer;
}
results[id] = factory;
}
return results;
}
/**
* Extract a specific module by id into its own Source File. This has no effect on
* the code, it is only useful to be able to look at a specific module without having
* to view a massive file. extract then returns the extracted module so you can jump to it.
* As mentioned above, note that this extracted module is not actually used,
* so putting breakpoints or similar will have no effect.
* @param id The id of the module to extract
*/
export function extract(id: number) {
const mod = wreq.m[id] as Function;
if (!mod) return null;
const code = `
// [EXTRACTED] WebpackModule${id}
// WARNING: This module was extracted to be more easily readable.
// This module is NOT ACTUALLY USED! This means putting breakpoints will have NO EFFECT!!
${mod.toString()}
//# sourceURL=ExtractedWebpackModule${id}
`;
const extracted = (0, eval)(code);
return extracted as Function;
}
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