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Fix acquiring WebpackRequire

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Nuckyz 2024-06-27 23:37:10 -03:00
parent e37a0cfec9
commit cbc7f7230a
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GPG key ID: 440BF8296E1C4AD9
1 changed files with 36 additions and 69 deletions
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105
src/webpack/patchWebpack.ts
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@ -18,7 +18,7 @@
import { WEBPACK_CHUNK } from "@utils/constants";
import { Logger } from "@utils/Logger";
import { canonicalizeMatch, canonicalizeReplacement } from "@utils/patches";
import { canonicalizeReplacement } from "@utils/patches";
import { PatchReplacement } from "@utils/types";
import { WebpackInstance } from "discord-types/other";
@ -27,7 +27,6 @@ import { patches } from "../plugins";
import { _initWebpack, beforeInitListeners, factoryListeners, moduleListeners, subscriptions, wreq } from ".";
const logger = new Logger("WebpackInterceptor", "#8caaee");
const initCallbackRegex = canonicalizeMatch(/{return \i\(".+?"\)}/);
let webpackChunk: any[];
@ -53,71 +52,6 @@ Object.defineProperty(window, WEBPACK_CHUNK, {
}
});
// wreq.O is the webpack onChunksLoaded function
// Discord uses it to await for all the chunks to be loaded before initializing the app
// We monkey patch it to also monkey patch the initialize app callback to get immediate access to the webpack require and run our listeners before doing it
Object.defineProperty(Function.prototype, "O", {
configurable: true,
set(onChunksLoaded: any) {
// When using react devtools or other extensions, or even when discord loads the sentry, we may also catch their webpack here.
// This ensures we actually got the right one
// this.e (wreq.e) is the method for loading a chunk, and only the main webpack has it
const { stack } = new Error();
if ((stack?.includes("discord.com") || stack?.includes("discordapp.com")) && String(this.e).includes("Promise.all")) {
logger.info("Found main WebpackRequire.onChunksLoaded");
delete (Function.prototype as any).O;
const originalOnChunksLoaded = onChunksLoaded;
onChunksLoaded = function (this: unknown, result: any, chunkIds: string[], callback: () => any, priority: number) {
if (callback != null && initCallbackRegex.test(callback.toString())) {
Object.defineProperty(this, "O", {
value: originalOnChunksLoaded,
configurable: true
});
const wreq = this as WebpackInstance;
const originalCallback = callback;
callback = function (this: unknown) {
logger.info("Patched initialize app callback invoked, initializing our internal references to WebpackRequire and running beforeInitListeners");
_initWebpack(wreq);
for (const beforeInitListener of beforeInitListeners) {
beforeInitListener(wreq);
}
originalCallback.apply(this, arguments as any);
};
callback.toString = originalCallback.toString.bind(originalCallback);
arguments[2] = callback;
}
originalOnChunksLoaded.apply(this, arguments as any);
};
onChunksLoaded.toString = originalOnChunksLoaded.toString.bind(originalOnChunksLoaded);
// Returns whether a chunk has been loaded
Object.defineProperty(onChunksLoaded, "j", {
set(v) {
delete onChunksLoaded.j;
onChunksLoaded.j = v;
originalOnChunksLoaded.j = v;
},
configurable: true
});
}
Object.defineProperty(this, "O", {
value: onChunksLoaded,
configurable: true
});
}
});
// wreq.m is the webpack module factory.
// normally, this is populated via webpackGlobal.push, which we patch below.
// However, Discord has their .m prepopulated.
@ -133,13 +67,46 @@ Object.defineProperty(Function.prototype, "m", {
// This ensures we actually got the right one
const { stack } = new Error();
if ((stack?.includes("discord.com") || stack?.includes("discordapp.com")) && !Array.isArray(v)) {
logger.info("Found Webpack module factory", stack.match(/\/assets\/(.+?\.js)/)?.[1] ?? "");
const fileName = stack.match(/\/assets\/(.+?\.js)/)?.[1] ?? "";
logger.info("Found Webpack module factory", fileName);
patchFactories(v);
// Define a setter for the bundlePath property of WebpackRequire. Only the main Webpack has this property.
// So if the setter is called, this means we can initialize the internal references to WebpackRequire.
Object.defineProperty(this, "p", {
configurable: true,
set(this: WebpackInstance, bundlePath: string) {
Object.defineProperty(this, "p", {
value: bundlePath,
configurable: true,
enumerable: true,
writable: true
});
clearTimeout(setterTimeout);
if (bundlePath !== "/assets/") return;
logger.info(`Main Webpack found in ${fileName}, initializing internal references to WebpackRequire`);
_initWebpack(this);
for (const beforeInitListener of beforeInitListeners) {
beforeInitListener(this);
}
}
});
// setImmediate to clear this property setter if this is not the main Webpack.
// If this is the main Webpack, wreq.p will always be set before the timeout runs.
const setterTimeout = setTimeout(() => Reflect.deleteProperty(this, "p"), 0);
}
Object.defineProperty(this, "m", {
value: v,
configurable: true
configurable: true,
enumerable: true,
writable: true
});
}
});