fix: improve error handling in CF bypass to prevent server crashes

src/lib/services/cf-fetch.ts

@@ -7,32 +7,38 @@ let browser: any = null;
 
 async function getBrowser() {
 	if (browser) return browser;
-	const puppeteer = await import("puppeteer-extra");
-	const StealthPlugin = await import("puppeteer-extra-plugin-stealth");
-	puppeteer.default.use(StealthPlugin.default());
-	browser = await puppeteer.default.launch({
-		headless: true,
-		args: [
-			"--no-sandbox",
-			"--disable-setuid-sandbox",
-			"--disable-web-security",
-			"--disable-blink-features=AutomationControlled",
-			"--user-agent=" + UA,
-		],
-	});
-	return browser;
+	try {
+		const puppeteer = await import("puppeteer-extra");
+		const StealthPlugin = await import("puppeteer-extra-plugin-stealth");
+		puppeteer.default.use(StealthPlugin.default());
+		browser = await puppeteer.default.launch({
+			headless: true,
+			args: [
+				"--no-sandbox",
+				"--disable-setuid-sandbox",
+				"--disable-web-security",
+				"--disable-blink-features=AutomationControlled",
+				"--user-agent=" + UA,
+			],
+		});
+		return browser;
+	} catch (e) {
+		throw new Error(`Cloudflare bypass unavailable: ${(e as Error).message}`);
+	}
 }
 
 export async function fetchWithCfBypass(
 	url: string,
 	timeout = 30000,
 ): Promise<string> {
-	const b = await getBrowser();
-	const page = await b.newPage();
-	await page.setUserAgent(UA);
-	await page.setDefaultTimeout(timeout);
-
+	let b: any;
+	let page: any;
 	try {
+		b = await getBrowser();
+		page = await b.newPage();
+		await page.setUserAgent(UA);
+		await page.setDefaultTimeout(timeout);
+
 		const response = await page.goto(url, {
 			waitUntil: "networkidle2",
 			timeout,
@@ -66,10 +72,12 @@ export async function fetchWithCfBypass(
 		const finalBody = await page.content();
 		return finalBody;
 	} finally {
-		try {
-			await page.close();
-		} catch {
-			// ignore cleanup errors
+		if (page) {
+			try {
+				await page.close();
+			} catch {
+				// ignore cleanup errors
+			}
 		}
 	}
 }