// Copyright Joyent, Inc. and other Node contributors. // // Permission is hereby granted, free of charge, to any person obtaining a // copy of this software and associated documentation files (the // "Software"), to deal in the Software without restriction, including // without limitation the rights to use, copy, modify, merge, publish, // distribute, sublicense, and/or sell copies of the Software, and to permit // persons to whom the Software is furnished to do so, subject to the // following conditions: // // The above copyright notice and this permission notice shall be included // in all copies or substantial portions of the Software. // // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS // OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN // NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, // DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR // OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE // USE OR OTHER DEALINGS IN THE SOFTWARE. var common = require('../common'); var assert = require('assert'); var dns = require('dns'), child_process = require('child_process'); // Try resolution without callback assert.throws(function() { dns.resolve('google.com', 'A'); }); assert.throws(function() { dns.resolve('127.0.0.1', 'PTR'); }); var hosts = ['example.com', 'example.org', 'ietf.org', // AAAA 'google.com', // MX, multiple A records '_xmpp-client._tcp.google.com', // SRV 'oakalynhall.co.uk' // Multiple PTR replies ]; var records = ['A', 'AAAA', 'MX', 'TXT', 'SRV']; var i = hosts.length; while (i--) { var j = records.length; while (j--) { var hostCmd = 'dig -t ' + records[j] + ' ' + hosts[i] + '| grep "^' + hosts[i] + '\\.\\W.*IN.*' + records[j] + '"' + '| sed -E "s/[[:space:]]+/ /g" | cut -d " " -f 5- ' + '| sed -e "s/\\.$//"'; child_process.exec(hostCmd, checkDnsRecord(hosts[i], records[j])); } } // CNAME should resolve dns.resolve('labs.nrcmedia.nl', 'CNAME', function(err, result) { assert.deepEqual(result, ['nrcmedia.nl']); }); // CNAME should not resolve dns.resolve('nrcmedia.nl', 'CNAME', function(err, result) { assert.ok(err.errno, dns.NODATA); }); function checkDnsRecord(host, record) { var myHost = host, myRecord = record; return function(err, stdout) { var expected = []; if (stdout.length) expected = stdout.substr(0, stdout.length - 1).split('\n'); switch (myRecord) { case 'A': case 'AAAA': dns.resolve(myHost, myRecord, function(error, result, ttl, cname) { if (error) result = []; cmpResults(expected, result, ttl, cname); // do reverse lookup check var ll = result.length; while (ll--) { var ip = result[ll]; var reverseCmd = 'host ' + ip + '| cut -d " " -f 5-' + '| sed -e "s/\\.$//"'; child_process.exec(reverseCmd, checkReverse(ip)); } }); break; case 'MX': dns.resolve(myHost, myRecord, function(error, result, ttl, cname) { if (error) result = []; var strResult = []; var ll = result.length; while (ll--) { strResult.push(result[ll].priority + ' ' + result[ll].exchange); } cmpResults(expected, strResult, ttl, cname); }); break; case 'TXT': dns.resolve(myHost, myRecord, function(error, result, ttl, cname) { if (error) result = []; var strResult = []; var ll = result.length; while (ll--) { strResult.push('"' + result[ll] + '"'); } cmpResults(expected, strResult, ttl, cname); }); break; case 'SRV': dns.resolve(myHost, myRecord, function(error, result, ttl, cname) { if (error) result = []; var strResult = []; var ll = result.length; while (ll--) { strResult.push(result[ll].priority + ' ' + result[ll].weight + ' ' + result[ll].port + ' ' + result[ll].name); } cmpResults(expected, strResult, ttl, cname); }); break; } } } function checkReverse(ip) { var myIp = ip; return function(errr, stdout) { var expected = stdout.substr(0, stdout.length - 1).split('\n'); var reversing = dns.reverse(myIp, function(error, domains, ttl, cname) { if (error) domains = []; cmpResults(expected, domains, ttl, cname); }); } } function cmpResults(expected, result, ttl, cname) { if (expected.length != result.length) { if (expected.length == 1 && expected[0] == '3(NXDOMAIN)' && result.length == 0) { // it's ok, dig returns NXDOMAIN, while dns module returns nothing } else { console.log('---WARNING---\nexpected ' + expected + '\nresult ' + result + '\n-------------'); } return; } expected.sort(); result.sort(); var ll = expected.length; while (ll--) { assert.equal(result[ll], expected[ll]); console.log('Result ' + result[ll] + ' was equal to expected ' + expected[ll]); } }