Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
net: add autoSelectFamily global getter and setter
- Loading branch information
1 parent
3bef549
commit 58f423b
Showing
8 changed files
with
229 additions
and
9 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
File renamed without changes.
File renamed without changes.
File renamed without changes.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,140 @@ | ||
| 'use strict'; | ||
|
|
||
| const common = require('../common'); | ||
| const { parseDNSPacket, writeDNSPacket } = require('../common/dns'); | ||
|
|
||
| const assert = require('assert'); | ||
| const dgram = require('dgram'); | ||
| const { Resolver } = require('dns'); | ||
| const { createConnection, createServer, setDefaultAutoSelectFamily } = require('net'); | ||
|
|
||
| // Test that the default for happy eyeballs algorithm is properly respected. | ||
|
|
||
| let autoSelectFamilyAttemptTimeout = common.platformTimeout(250); | ||
| if (common.isWindows) { | ||
| // Some of the windows machines in the CI need more time to establish connection | ||
| autoSelectFamilyAttemptTimeout = common.platformTimeout(1500); | ||
| } | ||
|
|
||
| function _lookup(resolver, hostname, options, cb) { | ||
| resolver.resolve(hostname, 'ANY', (err, replies) => { | ||
| assert.notStrictEqual(options.family, 4); | ||
|
|
||
| if (err) { | ||
| return cb(err); | ||
| } | ||
|
|
||
| const hosts = replies | ||
| .map((r) => ({ address: r.address, family: r.type === 'AAAA' ? 6 : 4 })) | ||
| .sort((a, b) => b.family - a.family); | ||
|
|
||
| if (options.all === true) { | ||
| return cb(null, hosts); | ||
| } | ||
|
|
||
| return cb(null, hosts[0].address, hosts[0].family); | ||
| }); | ||
| } | ||
|
|
||
| function createDnsServer(ipv6Addr, ipv4Addr, cb) { | ||
| // Create a DNS server which replies with a AAAA and a A record for the same host | ||
| const socket = dgram.createSocket('udp4'); | ||
|
|
||
| socket.on('message', common.mustCall((msg, { address, port }) => { | ||
| const parsed = parseDNSPacket(msg); | ||
| const domain = parsed.questions[0].domain; | ||
| assert.strictEqual(domain, 'example.org'); | ||
|
|
||
| socket.send(writeDNSPacket({ | ||
| id: parsed.id, | ||
| questions: parsed.questions, | ||
| answers: [ | ||
| { type: 'AAAA', address: ipv6Addr, ttl: 123, domain: 'example.org' }, | ||
| { type: 'A', address: ipv4Addr, ttl: 123, domain: 'example.org' }, | ||
| ] | ||
| }), port, address); | ||
| })); | ||
|
|
||
| socket.bind(0, () => { | ||
| const resolver = new Resolver(); | ||
| resolver.setServers([`127.0.0.1:${socket.address().port}`]); | ||
|
|
||
| cb({ dnsServer: socket, lookup: _lookup.bind(null, resolver) }); | ||
| }); | ||
| } | ||
|
|
||
| // Test that IPV4 is reached by default if IPV6 is not reachable and the default is enabled | ||
| { | ||
| createDnsServer('::1', '127.0.0.1', common.mustCall(function({ dnsServer, lookup }) { | ||
| const ipv4Server = createServer((socket) => { | ||
| socket.on('data', common.mustCall(() => { | ||
| socket.write('response-ipv4'); | ||
| socket.end(); | ||
| })); | ||
| }); | ||
|
|
||
| ipv4Server.listen(0, '127.0.0.1', common.mustCall(() => { | ||
| setDefaultAutoSelectFamily(true); | ||
|
|
||
| const connection = createConnection({ | ||
| host: 'example.org', | ||
| port: ipv4Server.address().port, | ||
| lookup, | ||
| autoSelectFamilyAttemptTimeout, | ||
| }); | ||
|
|
||
| let response = ''; | ||
| connection.setEncoding('utf-8'); | ||
|
|
||
| connection.on('data', (chunk) => { | ||
| response += chunk; | ||
| }); | ||
|
|
||
| connection.on('end', common.mustCall(() => { | ||
| assert.strictEqual(response, 'response-ipv4'); | ||
| ipv4Server.close(); | ||
| dnsServer.close(); | ||
| })); | ||
|
|
||
| connection.write('request'); | ||
| })); | ||
| })); | ||
| } | ||
|
|
||
| // Test that IPV4 is not reached by default if IPV6 is not reachable and the default is disabled | ||
| { | ||
| createDnsServer('::1', '127.0.0.1', common.mustCall(function({ dnsServer, lookup }) { | ||
| const ipv4Server = createServer((socket) => { | ||
| socket.on('data', common.mustCall(() => { | ||
| socket.write('response-ipv4'); | ||
| socket.end(); | ||
| })); | ||
| }); | ||
|
|
||
| ipv4Server.listen(0, '127.0.0.1', common.mustCall(() => { | ||
| setDefaultAutoSelectFamily(false); | ||
|
|
||
| const port = ipv4Server.address().port; | ||
|
|
||
| const connection = createConnection({ | ||
| host: 'example.org', | ||
| port, | ||
| lookup, | ||
| }); | ||
|
|
||
| connection.on('ready', common.mustNotCall()); | ||
| connection.on('error', common.mustCall((error) => { | ||
| if (common.hasIPv6) { | ||
| assert.strictEqual(error.code, 'ECONNREFUSED'); | ||
| assert.strictEqual(error.message, `connect ECONNREFUSED ::1:${port}`); | ||
| } else { | ||
| assert.strictEqual(error.code, 'EADDRNOTAVAIL'); | ||
| assert.strictEqual(error.message, `connect EADDRNOTAVAIL ::1:${port} - Local (:::0)`); | ||
| } | ||
|
|
||
| ipv4Server.close(); | ||
| dnsServer.close(); | ||
| })); | ||
| })); | ||
| })); | ||
| } |
9 changes: 9 additions & 0 deletions
9
test/parallel/test-net-socket-connect-invalid-autoselectfamily.js
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,9 @@ | ||
| 'use strict'; | ||
|
|
||
| require('../common'); | ||
| const assert = require('assert'); | ||
| const net = require('net'); | ||
|
|
||
| assert.throws(() => { | ||
| net.connect({ port: 8080, autoSelectFamily: 'INVALID' }); | ||
| }, { code: 'ERR_INVALID_ARG_TYPE' }); |