Merge 932a4aa0db into afa99b0742

index.js

@@ -1,6 +1,5 @@
 import isObj from 'lodash/isObject.js';
 import distance from 'gps-distance';
-import readStations from 'db-hafas-stations';
 
 import {defaultProfile} from './lib/default-profile.js';
 import {validateProfile} from './lib/validate-profile.js';
@@ -27,7 +26,8 @@ const validateLocation = (loc, name = 'location') => {
 	}
 };
 
-const loadEnrichedStationData = (profile) => new Promise((resolve, reject) => {
+const loadEnrichedStationData = (profile) => new Promise(async (resolve, reject) => {
+	const { default: readStations} = await import('db-hafas-stations');
 	const items = {};
 	readStations.full()
 		.on('data', (station) => {

lib/default-profile.js

@@ -37,7 +37,7 @@ import {formatTravellers} from '../format/travellers.js';
 import {formatLoyaltyCard} from '../format/loyalty-cards.js';
 import {formatTransfers} from '../format/transfers.js';
 
-const DEBUG = (/(^|,)hafas-client(,|$)/).test(process.env.DEBUG || '');
+const DEBUG = (/(^|,)hafas-client(,|$)/).test((typeof process !== 'undefined') ? (process.env.DEBUG || '') : '');
 const logRequest = DEBUG
 	? (_, req, reqId) => console.error(String(req.body))
 	: () => { };

lib/request.js

@@ -1,61 +1,14 @@
-import ProxyAgent from 'https-proxy-agent';
-import {isIP} from 'net';
-import {Agent as HttpsAgent} from 'https';
-import roundRobin from '@derhuerst/round-robin-scheduler';
-import {randomBytes} from 'crypto';
 import {stringify} from 'qs';
 import {Request, fetch} from 'cross-fetch';
 import {parse as parseContentType} from 'content-type';
 import {HafasError} from './errors.js';
 
-const proxyAddress = process.env.HTTPS_PROXY || process.env.HTTP_PROXY || null;
-const localAddresses = process.env.LOCAL_ADDRESS || null;
-
-if (proxyAddress && localAddresses) {
-	console.error('Both env vars HTTPS_PROXY/HTTP_PROXY and LOCAL_ADDRESS are not supported.');
-	process.exit(1);
-}
-
-const plainAgent = new HttpsAgent({
-	keepAlive: true,
-});
-let getAgent = () => plainAgent;
-
-if (proxyAddress) {
-	const agent = new ProxyAgent(proxyAddress, {
-		keepAlive: true,
-		keepAliveMsecs: 10 * 1000, // 10s
-	});
-	getAgent = () => agent;
-} else if (localAddresses) {
-	const agents = process.env.LOCAL_ADDRESS.split(',')
-		.map((addr) => {
-			const family = isIP(addr);
-			if (family === 0) {
-				throw new Error('invalid local address:' + addr);
-			}
-			return new HttpsAgent({
-				localAddress: addr, family,
-				keepAlive: true,
-			});
-		});
-	const pool = roundRobin(agents);
-	getAgent = () => pool.get();
-}
-
-const id = randomBytes(3)
-	.toString('hex');
-const randomizeUserAgent = (userAgent) => {
-	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 randomBytesHex = (nBytes = 8) => {
+	const array = new Uint8Array(nBytes);
+	crypto.getRandomValues(array);
+	return Array.from(array)
+	  .map((byte) => byte.toString(16).padStart(2, '0'))
+	  .join('');
   };
 
 const checkIfResponseIsOk = (_) => {
@@ -101,8 +54,8 @@ const request = async (ctx, userAgent, reqData) => {
 	delete reqData.endpoint;
 	const rawReqBody = profile.transformReqBody(ctx, reqData.body);
 
-	const req = profile.transformReq(ctx, {
-		agent: getAgent(),
+	const reqOptions = profile.transformReq(ctx, {
+		keepalive: true,
 		method: reqData.method,
 		// todo: CORS? referrer policy?
 		body: JSON.stringify(rawReqBody),
@@ -111,10 +64,7 @@ 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
-				? randomizeUserAgent(userAgent)
-				: userAgent,
-			'connection': 'keep-alive', // prevent excessive re-connecting
+			'user-agent': userAgent,
 			...reqData.headers,
 		},
 		redirect: 'follow',
@@ -122,15 +72,14 @@ const request = async (ctx, userAgent, reqData) => {
 	});
 
 	let url = endpoint + (reqData.path || '');
-	if (req.query) {
-		url += '?' + stringify(req.query, {arrayFormat: 'brackets', encodeValuesOnly: true});
+	if (reqOptions.query) {
+		url += '?' + stringify(reqOptions.query, {arrayFormat: 'brackets', encodeValuesOnly: true});
 	}
-	const reqId = randomBytes(3)
-		.toString('hex');
-	const fetchReq = new Request(url, req);
+	const reqId = randomBytesHex(3);
+	const fetchReq = new Request(url, reqOptions);
 	profile.logRequest(ctx, fetchReq, reqId);
 
-	const res = await fetch(url, req);
+	const res = await fetch(url, reqOptions);
 
 	const errProps = {
 		// todo [breaking]: assign as non-enumerable property
@@ -150,7 +99,7 @@ const request = async (ctx, userAgent, reqData) => {
 	let cType = res.headers.get('content-type');
 	if (cType) {
 		const {type} = parseContentType(cType);
-		if (type !== req.headers['Accept']) {
+		if (type !== reqOptions.headers['Accept']) {
 			throw new HafasError('invalid/unsupported response content-type: ' + cType, null, errProps);
 		}
 	}

p/db/index.js

@@ -1,7 +1,5 @@
-import {createRequire} from 'module';
-const require = createRequire(import.meta.url);
-const dbnavBase = require('../dbnav/base.json');
-const dbregioguideBase = require('../dbregioguide/base.json');
+import dbnavBase from '../dbnav/base.json' with { type: "json" };
+import dbregioguideBase from '../dbregioguide/base.json' with { type: "json" };
 import {products} from '../../lib/products.js';
 
 // journeys()

p/dbnav/index.js

@@ -1,7 +1,4 @@
-import {createRequire} from 'module';
-const require = createRequire(import.meta.url);
-
-const baseProfile = require('./base.json');
+import baseProfile from './base.json' with { type: "json" };
 import {products} from '../../lib/products.js';
 import {formatJourneysReq, formatRefreshJourneyReq} from './journeys-req.js';
 import {formatTripReq} from './trip-req.js';

p/dbregioguide/index.js

@@ -1,6 +1,4 @@
-import {createRequire} from 'module';
-const require = createRequire(import.meta.url);
-const baseProfile = require('./base.json');
+import baseProfile from './base.json' with { type: "json" };
 import {products} from '../../lib/products.js';
 import {formatTripReq} from './trip-req.js';
 

p/dbweb/index.js

@@ -1,7 +1,4 @@
-import {createRequire} from 'module';
-const require = createRequire(import.meta.url);
-
-const baseProfile = require('./base.json');
+import baseProfile from './base.json' with { type: "json" };
 import {products} from '../../lib/products.js';
 import {formatJourneysReq, formatRefreshJourneyReq} from './journeys-req.js';
 import {formatLocationFilter} from './location-filter.js';

package.json

@@ -56,7 +56,6 @@
 		"node": ">=16"
 	},
 	"dependencies": {
-		"@derhuerst/round-robin-scheduler": "^1.0.4",
 		"content-type": "^1.0.4",
 		"cross-fetch": "^4.0.0",
 		"db-hafas-stations": "^1.0.0",

readme.md

@@ -76,6 +76,12 @@ There are [community-maintained TypeScript typings available as `@types/hafas-cl
 > [!IMPORTANT]
 > Depending on your use case, it is very important that you employ caching, either with a simple [HTTP proxy cache](https://github.com/traines-source/time-space-train-planner/blob/master/deployments/nginx-cache.conf) in front of the REST API or by using [cached-hafas-client](https://github.com/public-transport/cached-hafas-client) (where, of course, you can just drop in a `db-vendo-client` instead of a `hafas-client` instance). Also see [db-rest](https://github.com/derhuerst/db-rest), which does this and some more plumbing.
 
+## Browser usage
+
+`db-vendo-client` is mostly browser compatible, however none of the endpoints enables CORS, so it is impossible to use `db-vendo-client` in normal browser environments. It was tested with vite + capacitorjs and should also work with cordova or react native and similar projects.
+
+**Limitations:** Does not work with `enrichStations` option enabled.
+
 ## Related Projects
 
 - [hafas-client](https://github.com/public-transport/hafas-client/) – including further related projects

test/dbnav-departures.js

@@ -1,13 +1,11 @@
 // todo: use import assertions once they're supported by Node.js & ESLint
 // https://github.com/tc39/proposal-import-assertions
-import {createRequire} from 'module';
-const require = createRequire(import.meta.url);
 
 import tap from 'tap';
 
 import {createClient} from '../index.js';
 import {profile as rawProfile} from '../p/dbnav/index.js';
-const res = require('./fixtures/dbnav-departures.json');
+import res from './fixtures/dbnav-departures.json' with { type: "json" };
 import {dbnavDepartures as expected} from './fixtures/dbnav-departures.js';
 
 const client = createClient(rawProfile, 'public-transport/hafas-client:test', {enrichStations: false});

test/dbnav-refresh-journey.js

@@ -1,13 +1,11 @@
 // todo: use import assertions once they're supported by Node.js & ESLint
 // https://github.com/tc39/proposal-import-assertions
-import {createRequire} from 'module';
-const require = createRequire(import.meta.url);
 
 import tap from 'tap';
 
 import {createClient} from '../index.js';
 import {profile as rawProfile} from '../p/dbnav/index.js';
-const res = require('./fixtures/dbnav-refresh-journey.json');
+import res from './fixtures/dbnav-refresh-journey.json' with { type: "json" };
 import {dbNavJourney as expected} from './fixtures/dbnav-refresh-journey.js';
 
 const client = createClient(rawProfile, 'public-transport/hafas-client:test', {enrichStations: false});

test/dbnav-stop.js

@@ -1,13 +1,11 @@
 // todo: use import assertions once they're supported by Node.js & ESLint
 // https://github.com/tc39/proposal-import-assertions
-import {createRequire} from 'module';
-const require = createRequire(import.meta.url);
 
 import tap from 'tap';
 
 import {createClient} from '../index.js';
 import {profile as rawProfile} from '../p/dbnav/index.js';
-const res = require('./fixtures/dbnav-stop.json');
+import res from './fixtures/dbnav-stop.json' with { type: "json" };
 import {dbnavDepartures as expected} from './fixtures/dbnav-stop.js';
 
 const client = createClient(rawProfile, 'public-transport/hafas-client:test', {enrichStations: false});

test/dbnav-trip.js

@@ -1,13 +1,10 @@
 // todo: use import assertions once they're supported by Node.js & ESLint
 // https://github.com/tc39/proposal-import-assertions
-import {createRequire} from 'module';
-const require = createRequire(import.meta.url);
-
 import tap from 'tap';
 
 import {createClient} from '../index.js';
 import {profile as rawProfile} from '../p/dbnav/index.js';
-const res = require('./fixtures/dbnav-trip.json');
+import res from './fixtures/dbnav-trip.json' with { type: "json" };
 import {dbTrip as expected} from './fixtures/dbnav-trip.js';
 
 const client = createClient(rawProfile, 'public-transport/hafas-client:test', {enrichStations: false});

test/dbregioguide-trip.js

@@ -1,13 +1,10 @@
 // todo: use import assertions once they're supported by Node.js & ESLint
 // https://github.com/tc39/proposal-import-assertions
-import {createRequire} from 'module';
-const require = createRequire(import.meta.url);
-
 import tap from 'tap';
 
 import {createClient} from '../index.js';
 import {profile as rawProfile} from '../p/dbregioguide/index.js';
-const res = require('./fixtures/dbregioguide-trip.json');
+import res from './fixtures/dbregioguide-trip.json' with { type: "json" };
 import {dbTrip as expected} from './fixtures/dbregioguide-trip.js';
 
 const client = createClient(rawProfile, 'public-transport/hafas-client:test', {enrichStations: false});

test/dbris-arrivals.js

@@ -1,13 +1,10 @@
 // todo: use import assertions once they're supported by Node.js & ESLint
 // https://github.com/tc39/proposal-import-assertions
-import {createRequire} from 'module';
-const require = createRequire(import.meta.url);
-
 import tap from 'tap';
 
 import {createClient} from '../index.js';
 import {profile as rawProfile} from '../p/dbweb/index.js';
-const res = require('./fixtures/dbris-arrivals.json');
+import res from './fixtures/dbris-arrivals.json' with { type: "json" };
 import {dbArrivals as expected} from './fixtures/dbris-arrivals.js';
 
 const client = createClient(rawProfile, 'public-transport/hafas-client:test', {enrichStations: false});

test/dbweb-departures.js

@@ -1,13 +1,10 @@
 // todo: use import assertions once they're supported by Node.js & ESLint
 // https://github.com/tc39/proposal-import-assertions
-import {createRequire} from 'module';
-const require = createRequire(import.meta.url);
-
 import tap from 'tap';
 
 import {createClient} from '../index.js';
 import {profile as rawProfile} from '../p/dbweb/index.js';
-const res = require('./fixtures/dbweb-departures.json');
+import res from './fixtures/dbweb-departures.json' with { type: "json" };
 import {dbwebDepartures as expected} from './fixtures/dbweb-departures.js';
 
 const client = createClient(rawProfile, 'public-transport/hafas-client:test', {enrichStations: false});

test/dbweb-journey.js

@@ -1,13 +1,10 @@
 // todo: use import assertions once they're supported by Node.js & ESLint
 // https://github.com/tc39/proposal-import-assertions
-import {createRequire} from 'module';
-const require = createRequire(import.meta.url);
-
 import tap from 'tap';
 
 import {createClient} from '../index.js';
 import {profile as rawProfile} from '../p/dbweb/index.js';
-const res = require('./fixtures/dbweb-journey.json');
+import res from './fixtures/dbweb-journey.json' with { type: "json" };
 import {dbwebJourney as expected} from './fixtures/dbweb-journey.js';
 
 const client = createClient(rawProfile, 'public-transport/hafas-client:test', {enrichStations: false});

test/dbweb-refresh-journey.js

@@ -1,13 +1,10 @@
 // todo: use import assertions once they're supported by Node.js & ESLint
 // https://github.com/tc39/proposal-import-assertions
-import {createRequire} from 'module';
-const require = createRequire(import.meta.url);
-
 import tap from 'tap';
 
 import {createClient} from '../index.js';
 import {profile as rawProfile} from '../p/dbweb/index.js';
-const res = require('./fixtures/dbweb-refresh-journey.json');
+import res from './fixtures/dbweb-refresh-journey.json' with { type: "json" };
 import {dbJourney as expected} from './fixtures/dbweb-refresh-journey.js';
 
 const client = createClient(rawProfile, 'public-transport/hafas-client:test', {enrichStations: false});

test/dbweb-trip.js

@@ -1,13 +1,10 @@
 // todo: use import assertions once they're supported by Node.js & ESLint
 // https://github.com/tc39/proposal-import-assertions
-import {createRequire} from 'module';
-const require = createRequire(import.meta.url);
-
 import tap from 'tap';
 
 import {createClient} from '../index.js';
 import {profile as rawProfile} from '../p/dbweb/index.js';
-const res = require('./fixtures/dbweb-trip.json');
+import res from './fixtures/dbweb-trip.json' with { type: "json" };
 import {dbwebTrip as expected} from './fixtures/dbweb-trip.js';
 
 const client = createClient(rawProfile, 'public-transport/hafas-client:test', {enrichStations: false});

test/lib/request.js

@@ -1,8 +1,5 @@
 // todo: use import assertions once they're supported by Node.js & ESLint
 // https://github.com/tc39/proposal-import-assertions
-import {createRequire} from 'module';
-const require = createRequire(import.meta.url);
-
 import tap from 'tap';
 import {
 	checkIfResponseIsOk as checkIfResIsOk,