51 lines
1.3 KiB
TypeScript
51 lines
1.3 KiB
TypeScript
import { Worker } from "worker_threads";
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import { safeRun } from "../util";
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// @ts-ignore
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import workerCode from "bundle-text:./node_worker.ts";
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import { Sandbox } from "../sandbox";
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import { WorkerLike } from "./worker";
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import { Plug } from "../plug";
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import path from "path";
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import fs from "fs";
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class NodeWorkerWrapper implements WorkerLike {
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onMessage?: (message: any) => Promise<void>;
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ready: Promise<void>;
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private worker: Worker;
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constructor(worker: Worker) {
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this.worker = worker;
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worker.on("message", (message: any) => {
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safeRun(async () => {
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await this.onMessage!(message);
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});
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});
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this.ready = new Promise((resolve) => {
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worker.once("online", resolve);
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});
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}
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postMessage(message: any): void {
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this.worker.postMessage(message);
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}
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terminate(): void {
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this.worker.terminate();
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}
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}
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// Look for the node_modules directory, to be passed to the worker to find e.g. the vm2 module
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let nodeModulesDir = __dirname;
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while (!fs.existsSync(nodeModulesDir + "/node_modules/vm2")) {
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nodeModulesDir = path.dirname(nodeModulesDir);
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}
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export function createSandbox(plug: Plug<any>) {
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let worker = new Worker(workerCode, {
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eval: true,
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workerData: path.join(nodeModulesDir, "node_modules"),
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});
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return new Sandbox(plug, new NodeWorkerWrapper(worker));
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}
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