1'use strict'; 2 3// Verify that non-ASCII hostnames are handled correctly as IDNA 2008. 4// 5// * Tests will fail with NXDOMAIN when UTF-8 leaks through to a getaddrinfo() 6// that doesn't support IDNA at all. 7// 8// * "straße.de" will resolve to the wrong address when the resolver supports 9// only IDNA 2003 (e.g., glibc until 2.28) because it encodes it wrong. 10 11const { mustCall } = require('../common'); 12const assert = require('assert'); 13const dns = require('dns'); 14const { addresses } = require('../common/internet'); 15 16const fixture = { 17 hostname: 'straße.de', 18 expectedAddress: '81.169.145.78', 19 dnsServer: addresses.DNS4_SERVER, 20 family: 4, 21}; 22 23// Explicitly use well-behaved DNS servers that are known to be able to resolve 24// the query (which is a.k.a xn--strae-oqa.de). 25dns.setServers([fixture.dnsServer]); 26 27dns.lookup( 28 fixture.hostname, 29 { family: fixture.family }, 30 mustCall((err, address) => { 31 if (err && err.errno === 'ESERVFAIL') { 32 assert.ok(err.message.includes('queryA ESERVFAIL straße.de')); 33 return; 34 } 35 assert.ifError(err); 36 assert.strictEqual(address, fixture.expectedAddress); 37 }), 38); 39 40dns.promises.lookup(fixture.hostname, { family: fixture.family }) 41 .then(({ address }) => { 42 assert.strictEqual(address, fixture.expectedAddress); 43 }, (err) => { 44 if (err && err.errno === 'ESERVFAIL') { 45 assert.ok(err.message.includes('queryA ESERVFAIL straße.de')); 46 } else { 47 throw err; 48 } 49 }).finally(mustCall()); 50 51dns.resolve4(fixture.hostname, mustCall((err, addresses) => { 52 if (err && err.errno === 'ESERVFAIL') { 53 assert.ok(err.message.includes('queryA ESERVFAIL straße.de')); 54 return; 55 } 56 assert.ifError(err); 57 assert.deepStrictEqual(addresses, [fixture.expectedAddress]); 58})); 59 60const p = new dns.promises.Resolver().resolve4(fixture.hostname); 61p.then((addresses) => { 62 assert.deepStrictEqual(addresses, [fixture.expectedAddress]); 63}, (err) => { 64 if (err && err.errno === 'ESERVFAIL') { 65 assert.ok(err.message.includes('queryA ESERVFAIL straße.de')); 66 } else { 67 throw err; 68 } 69}).finally(mustCall()); 70