Examples with DnsMessage org.minidns.dnsmessage.DnsMessage used on opensource projects

Example 51 with DnsMessage

use of org.minidns.dnsmessage.DnsMessage in project minidns by MiniDNS.

the class ReliableDNSClient method query.

@Override
protected DNSMessage query(DNSMessage.Builder q) throws IOException {
    DNSMessage dnsMessage = null;
    String unacceptableReason = null;
    List<IOException> ioExceptions = new LinkedList<>();
    if (mode != Mode.iterativeOnly) {
        // Try a recursive query.
        try {
            dnsMessage = dnsClient.query(q);
            if (dnsMessage != null) {
                unacceptableReason = isResponseAcceptable(dnsMessage);
                if (unacceptableReason == null) {
                    return dnsMessage;
                }
            }
        } catch (IOException ioException) {
            ioExceptions.add(ioException);
        }
    }
    // Abort if we the are in "recursive only" mode.
    if (mode == Mode.recursiveOnly)
        return dnsMessage;
    // Eventually log that we fall back to iterative mode.
    final Level FALLBACK_LOG_LEVEL = Level.FINE;
    if (LOGGER.isLoggable(FALLBACK_LOG_LEVEL) && mode != Mode.iterativeOnly) {
        String logString = "Resolution fall back to iterative mode because: ";
        if (!ioExceptions.isEmpty()) {
            logString += ioExceptions.get(0);
        } else if (dnsMessage == null) {
            logString += " DNSClient did not return a response";
        } else if (unacceptableReason != null) {
            logString += unacceptableReason + ". Response:\n" + dnsMessage;
        } else {
            throw new AssertionError("This should never been reached");
        }
        LOGGER.log(FALLBACK_LOG_LEVEL, logString);
    }
    try {
        dnsMessage = recursiveDnsClient.query(q);
    } catch (IOException ioException) {
        ioExceptions.add(ioException);
    }
    if (dnsMessage == null) {
        MultipleIoException.throwIfRequired(ioExceptions);
    }
    return dnsMessage;
}

Example 52 with DnsMessage

use of org.minidns.dnsmessage.DnsMessage in project minidns by MiniDNS.

the class AsyncApiTest method simpleAsyncApiTest.

public static void simpleAsyncApiTest() throws IOException {
    DNSClient client = new DNSClient();
    client.setDataSource(new AsyncNetworkDataSource());
    client.getDataSource().setTimeout(60 * 60 * 1000);
    MiniDnsFuture<DNSMessage, IOException> future = client.queryAsync("example.com", Record.TYPE.NS);
    DNSMessage response = future.getOrThrow();
    assertEquals(RESPONSE_CODE.NO_ERROR, response.responseCode);
}

Example 53 with DnsMessage

use of org.minidns.dnsmessage.DnsMessage in project minidns by MiniDNS.

the class AsyncApiTest method tcpAsyncApiTest.

public static void tcpAsyncApiTest() throws IOException {
    DNSDataSource dataSource = new AsyncNetworkDataSource();
    dataSource.setTimeout(60 * 60 * 1000);
    dataSource.setUdpPayloadSize(256);
    dataSource.setQueryMode(QueryMode.tcp);
    DNSClient client = new DNSClient();
    client.setDataSource(dataSource);
    client.setAskForDnssec(true);
    MiniDnsFuture<DNSMessage, IOException> future = client.queryAsync("google.com", Record.TYPE.AAAA);
    DNSMessage response = future.getOrThrow();
    assertEquals(RESPONSE_CODE.NO_ERROR, response.responseCode);
}

Example 54 with DnsMessage

use of org.minidns.dnsmessage.DnsMessage in project minidns by MiniDNS.

the class CoreTest method testExampleCom.

@IntegrationTest
public static void testExampleCom() throws IOException {
    DNSClient client = new DNSClient(new LRUCache(1024));
    // stable?
    String exampleIp4 = "93.184.216.34";
    // stable?
    String exampleIp6 = "2606:2800:220:1:248:1893:25c8:1946";
    assertEquals(client.query("example.com", Record.TYPE.A).answerSection.get(0).payloadData.toString(), exampleIp4);
    assertEquals(client.query("www.example.com", Record.TYPE.A).answerSection.get(0).payloadData.toString(), exampleIp4);
    assertEquals(client.query("example.com", Record.TYPE.AAAA).answerSection.get(0).payloadData.toString(), exampleIp6);
    assertEquals(client.query("www.example.com", Record.TYPE.AAAA).answerSection.get(0).payloadData.toString(), exampleIp6);
    DNSMessage nsRecords = client.query("example.com", Record.TYPE.NS);
    List<String> values = new ArrayList<>();
    for (Record<? extends Data> record : nsRecords.answerSection) {
        values.add(record.payloadData.toString());
    }
    Collections.sort(values);
    assertEquals(values.get(0), "a.iana-servers.net.");
    assertEquals(values.get(1), "b.iana-servers.net.");
}

Example 55 with DnsMessage

use of org.minidns.dnsmessage.DnsMessage in project minidns by MiniDNS.

the class CoreTest method testTcpAnswer.

@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);
}