@Override
protected String fetchResource(Context context, OperationLog log, int indent) {
Client c = new Client();
DNSMessage msg = c.query(new Question(mFqdn, mType, mClass));
Record aw = msg.getAnswers()[0];
TXT txt = (TXT) aw.getPayload();
return txt.getText().toLowerCase();
}
@IntegrationTest
public static void testTcpAnswer() throws IOException {
DNSClient client = new DNSClient(new LRUCache(1024));
client.setAskForDnssec(true);
client.setDisableResultFilter(true);
DNSMessage result = client.query("www-nsec.example.com", Record.TYPE.A);
assertNotNull(result);
assertTrue(result.toArray().length > 512);
}
public DNSMessage query(DNSMessage message, InetAddress address, int port) throws IOException {
DNSMessage response;
try {
response = super.query(message, address, port);
} catch (IOException e) {
failedQueries.incrementAndGet();
throw e;
}
successfulQueries.incrementAndGet();
responseSize.addAndGet(response.toArray().length);
return response;
}
@IntegrationTest
public static NSID testNsidLRoot() {
DNSClient client =
new DNSClient(null) {
@Override
protected Builder newQuestion(Builder message) {
message.getEdnsBuilder().addEdnsOption(NSID.REQUEST);
return super.newQuestion(message);
}
};
DNSMessage response = null;
Question q = new Question("de", TYPE.NS);
for (InetAddress lRoot : IterativeDNSClient.getRootServer('l')) {
try {
response = client.query(q, lRoot);
} catch (IOException e) {
continue;
}
break;
}
NSID nsid = response.getEdns().getEdnsOption(OptionCode.NSID);
assertNotNull(nsid);
return nsid;
}