forked from mirrors/gecko-dev
09de50afaf
These modules are MIT licensed and they're to be used in xpcshell-tests for TRR. They allow us to make moz-http2.js act like a true DoH server - more specifically to answer DNS queries that have actually been asked, not just a dumb character buffer. Differential Revision: https://phabricator.services.mozilla.com/D25672 --HG-- extra : moz-landing-system : lando
61 lines
1.2 KiB
JavaScript
61 lines
1.2 KiB
JavaScript
'use strict'
|
|
|
|
const tls = require('tls')
|
|
const dnsPacket = require('..')
|
|
|
|
var response = null
|
|
var expectedLength = 0
|
|
|
|
function getRandomInt (min, max) {
|
|
return Math.floor(Math.random() * (max - min + 1)) + min
|
|
}
|
|
|
|
const buf = dnsPacket.streamEncode({
|
|
type: 'query',
|
|
id: getRandomInt(1, 65534),
|
|
flags: dnsPacket.RECURSION_DESIRED,
|
|
questions: [{
|
|
type: 'A',
|
|
name: 'google.com'
|
|
}]
|
|
})
|
|
|
|
const context = tls.createSecureContext({
|
|
secureProtocol: 'TLSv1_2_method'
|
|
})
|
|
|
|
const options = {
|
|
port: 853,
|
|
host: 'getdnsapi.net',
|
|
secureContext: context
|
|
}
|
|
|
|
const client = tls.connect(options, () => {
|
|
console.log('client connected')
|
|
client.write(buf)
|
|
})
|
|
|
|
client.on('data', function (data) {
|
|
console.log('Received response: %d bytes', data.byteLength)
|
|
if (response == null) {
|
|
if (data.byteLength > 1) {
|
|
const plen = data.readUInt16BE(0)
|
|
expectedLength = plen
|
|
if (plen < 12) {
|
|
throw new Error('below DNS minimum packet length')
|
|
}
|
|
response = Buffer.from(data)
|
|
}
|
|
} else {
|
|
response = Buffer.concat([response, data])
|
|
}
|
|
|
|
if (response.byteLength >= expectedLength) {
|
|
console.log(dnsPacket.streamDecode(response))
|
|
client.destroy()
|
|
}
|
|
})
|
|
|
|
client.on('end', () => {
|
|
console.log('Connection ended')
|
|
})
|