lib/request.js

@@ -3,23 +3,13 @@ import {Request, fetch} from 'cross-fetch';
 import {parse as parseContentType} from 'content-type';
 import {HafasError} from './errors.js';
 
-const randomBytesHexString = length => [...Array(length)].map(() => Math.floor(Math.random() * 16)
+const randomBytesHex = (nBytes = 8) => {
-	.toString(16))
+	const array = new Uint8Array(nBytes);
-	.join('');
+	crypto.getRandomValues(array);
-
+	return Array.from(array)
-const id = randomBytesHexString(6)
+		.map((byte) => byte.toString(16)
-	.toString('hex');
+			.padStart(2, '0'))
-const randomizeUserAgent = (userAgent) => {
+		.join('');
-	let ua = userAgent;
-	for (
-		let i = Math.round(5 + Math.random() * 5);
-		i < ua.length;
-		i += Math.round(5 + Math.random() * 5)
-	) {
-		ua = ua.slice(0, i) + id + ua.slice(i);
-		i += id.length;
-	}
-	return ua;
 };
 
 const checkIfResponseIsOk = (_) => {
@@ -75,9 +65,7 @@ const request = async (ctx, userAgent, reqData) => {
 			'Accept-Encoding': 'gzip, br, deflate',
 			'Accept': 'application/json',
 			'Accept-Language': opt.language || profile.defaultLanguage || 'en',
-			'user-agent': profile.randomizeUserAgent
+			'user-agent': userAgent,
-				? randomizeUserAgent(userAgent)
-				: userAgent,
 			...reqData.headers,
 		},
 		redirect: 'follow',
@@ -88,7 +76,7 @@ const request = async (ctx, userAgent, reqData) => {
 	if (reqOptions.query) {
 		url += '?' + stringify(reqOptions.query, {arrayFormat: 'brackets', encodeValuesOnly: true});
 	}
-	const reqId = randomBytesHexString(6);
+	const reqId = randomBytesHex(3);
 	const fetchReq = new Request(url, reqOptions);
 	profile.logRequest(ctx, fetchReq, reqId);