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require("../common");
var dns = require("dns"),
sys = require("sys");
// 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/\\.$//'";
sys.exec(hostCmd, checkDnsRecord(hosts[i], records[j]));
}
}
function checkDnsRecord(host, record) {
var myHost = host,
myRecord = record;
return function(err, stdout) {
var expected = [];
if(stdout.length)
expected = stdout.substr(0, stdout.length - 1).split("\n");
switch (myRecord) {
case "A":
case "AAAA":
dns.resolve(myHost, myRecord, function (error, result, ttl, cname) {
if(error) result = [];
cmpResults(expected, result, ttl, cname);
// do reverse lookup check
var ll = result.length;
while (ll--) {
var ip = result[ll];
var reverseCmd = "host " + ip +
"| cut -d \" \" -f 5-" +
"| sed -e 's/\\.$//'";
sys.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");
reversing = dns.reverse(myIp, function (error, domains, ttl, cname) {
if(error) domains = [];
cmpResults(expected, domains, ttl, cname);
});
}
}
function cmpResults(expected, result, ttl, cname) {
assert.equal(expected.length, result.length);
expected.sort();
result.sort();
ll = expected.length;
while (ll--) {
assert.equal(result[ll], expected[ll]);
puts("Result " + result[ll] + " was equal to expected " + expected[ll]);
}
}