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import logger from "@remember/shared/logger";
import {
LinkCrawlerQueue,
OpenAIQueue,
ZCrawlLinkRequest,
queueConnectionDetails,
zCrawlLinkRequestSchema,
} from "@remember/shared/queues";
import { Worker } from "bullmq";
import { Job } from "bullmq";
import { prisma } from "@remember/db";
import { Browser } from "puppeteer";
import puppeteer from "puppeteer-extra";
import StealthPlugin from "puppeteer-extra-plugin-stealth";
import metascraper from "metascraper";
import metascraperDescription from "metascraper-description";
import metascraperImage from "metascraper-image";
import metascraperLogo from "metascraper-logo-favicon";
import metascraperTitle from "metascraper-title";
import metascraperUrl from "metascraper-url";
import metascraperTwitter from "metascraper-twitter";
import metascraperReadability from "metascraper-readability";
const metascraperParser = metascraper([
metascraperReadability(),
metascraperTitle(),
metascraperDescription(),
metascraperTwitter(),
metascraperImage(),
metascraperLogo(),
metascraperUrl(),
]);
let browser: Browser | undefined;
export class CrawlerWorker {
static async build() {
if (!browser) {
puppeteer.use(StealthPlugin());
console.log("HERE");
browser = await puppeteer.launch({ headless: true });
}
logger.info("Starting crawler worker ...");
const worker = new Worker<ZCrawlLinkRequest, void>(
LinkCrawlerQueue.name,
runCrawler,
{
connection: queueConnectionDetails,
autorun: false,
},
);
worker.on("completed", (job) => {
const jobId = job?.id || "unknown";
logger.info(`[Crawler][${jobId}] Completed successfully`);
});
worker.on("failed", (job, error) => {
const jobId = job?.id || "unknown";
logger.error(`[Crawler][${jobId}] Crawling job failed: ${error}`);
});
return worker;
}
}
async function getBookmarkUrl(bookmarkId: string) {
const bookmark = await prisma.bookmarkedLink.findUnique({
where: { id: bookmarkId },
});
if (!bookmark) {
throw new Error("The bookmark either doesn't exist or not a link");
}
return bookmark.url;
}
async function crawlPage(url: string) {
if (!browser) {
throw new Error("The browser must have been initalized by this point.");
}
const context = await browser.createBrowserContext();
const page = await context.newPage();
await page.goto(url, {
timeout: 10000, // 10 seconds
waitUntil: "networkidle2",
});
const htmlContent = await page.content();
await context.close();
return htmlContent;
}
async function runCrawler(job: Job<ZCrawlLinkRequest, void>) {
const jobId = job.id || "unknown";
const request = zCrawlLinkRequestSchema.safeParse(job.data);
if (!request.success) {
logger.error(
`[Crawler][${jobId}] Got malformed job request: ${request.error.toString()}`,
);
return;
}
const { bookmarkId } = request.data;
const url = await getBookmarkUrl(bookmarkId);
logger.info(
`[Crawler][${jobId}] Will crawl "${url}" for link with id "${bookmarkId}"`,
);
// TODO(IMPORTANT): Run security validations on the input URL (e.g. deny localhost, etc)
const htmlContent = await crawlPage(url);
const meta = await metascraperParser({
url,
html: htmlContent,
});
await prisma.bookmarkedLink.update({
where: {
id: bookmarkId,
},
data: {
title: meta.title,
description: meta.description,
imageUrl: meta.image,
favicon: meta.logo,
crawledAt: new Date(),
},
});
// Enqueue openai job
OpenAIQueue.add("openai", {
bookmarkId,
});
}
|
