Examples with Data org.minidns.record.Data used on opensource projects

Example 1 with Data

use of org.minidns.record.Data in project minidns by MiniDNS.

the class IterativeDNSClient method queryRecursive.

private DNSMessage queryRecursive(ResolutionState resolutionState, DNSMessage q, InetAddress address, DNSName authoritativeZone) throws IOException {
    resolutionState.recurse(address, q);
    DNSMessage resMessage = query(q, address);
    if (resMessage == null) {
        // TODO throw exception here?
        return null;
    }
    if (resMessage.authoritativeAnswer) {
        return resMessage;
    }
    if (cache != null) {
        cache.offer(q, resMessage, authoritativeZone);
    }
    List<Record<? extends Data>> authorities = resMessage.copyAuthority();
    List<IOException> ioExceptions = new LinkedList<>();
    // Glued NS first
    for (Iterator<Record<? extends Data>> iterator = authorities.iterator(); iterator.hasNext(); ) {
        Record<? extends Data> record = iterator.next();
        if (record.type != TYPE.NS) {
            iterator.remove();
            continue;
        }
        DNSName name = ((NS) record.payloadData).target;
        IpResultSet gluedNs = searchAdditional(resMessage, name);
        for (Iterator<InetAddress> addressIterator = gluedNs.addresses.iterator(); addressIterator.hasNext(); ) {
            InetAddress target = addressIterator.next();
            DNSMessage recursive = null;
            try {
                recursive = queryRecursive(resolutionState, q, target, record.name);
            } catch (IOException e) {
                abortIfFatal(e);
                LOGGER.log(Level.FINER, "Exception while recursing", e);
                resolutionState.decrementSteps();
                ioExceptions.add(e);
                if (!addressIterator.hasNext()) {
                    iterator.remove();
                }
                continue;
            }
            return recursive;
        }
    }
    // Try non-glued NS
    for (Record<? extends Data> record : authorities) {
        final Question question = q.getQuestion();
        DNSName name = ((NS) record.payloadData).target;
        // AAAA RR, then we should not continue here as it would result in an endless loop.
        if (question.name.equals(name) && (question.type == TYPE.A || question.type == TYPE.AAAA))
            continue;
        IpResultSet res = null;
        try {
            res = resolveIpRecursive(resolutionState, name);
        } catch (IOException e) {
            resolutionState.decrementSteps();
            ioExceptions.add(e);
        }
        if (res == null) {
            continue;
        }
        for (InetAddress target : res.addresses) {
            DNSMessage recursive = null;
            try {
                recursive = queryRecursive(resolutionState, q, target, record.name);
            } catch (IOException e) {
                resolutionState.decrementSteps();
                ioExceptions.add(e);
                continue;
            }
            return recursive;
        }
    }
    MultipleIoException.throwIfRequired(ioExceptions);
    // where we able to find glue records or the IPs of the next nameservers.
    return null;
}

Example 2 with Data

use of org.minidns.record.Data in project minidns by MiniDNS.

the class IterativeDNSClientTest method notGluedNsTest.

@SuppressWarnings("unchecked")
@Test
public void notGluedNsTest() throws IOException {
    IterativeDNSClient client = new IterativeDNSClient(new LRUCache(0));
    applyZones(client, rootZone(record("com", ns("ns.com")), record("net", ns("ns.net")), record("ns.com", a("1.1.1.1")), record("ns.net", a("1.1.2.1"))), zone("com", "ns.com", "1.1.1.1", record("example.com", ns("example.ns.net"))), zone("net", "ns.net", "1.1.2.1", record("example.ns.net", a("1.1.2.2"))), zone("example.com", "example.ns.net", "1.1.2.2", record("www.example.com", a("1.1.1.3"))));
    DNSMessage message = client.query("www.example.com", TYPE.A);
    assertNotNull(message);
    List<Record<? extends Data>> answers = message.answerSection;
    assertEquals(1, answers.size());
    assertEquals(TYPE.A, answers.get(0).type);
    assertArrayEquals(new byte[] { 1, 1, 1, 3 }, ((A) answers.get(0).payloadData).getIp());
}

Example 3 with Data

use of org.minidns.record.Data in project minidns by MiniDNS.

the class IterativeDNSClientTest method basicIterativeTest.

@SuppressWarnings("unchecked")
@Test
public void basicIterativeTest() throws IOException {
    IterativeDNSClient client = new IterativeDNSClient(new LRUCache(0));
    applyZones(client, rootZone(record("com", ns("ns.com")), record("ns.com", a("1.1.1.1"))), zone("com", "ns.com", "1.1.1.1", record("example.com", ns("ns.example.com")), record("ns.example.com", a("1.1.1.2"))), zone("example.com", "ns.example.com", "1.1.1.2", record("www.example.com", a("1.1.1.3"))));
    DNSMessage message = client.query("www.example.com", TYPE.A);
    assertNotNull(message);
    List<Record<? extends Data>> answers = message.answerSection;
    assertEquals(1, answers.size());
    assertEquals(TYPE.A, answers.get(0).type);
    assertArrayEquals(new byte[] { 1, 1, 1, 3 }, ((A) answers.get(0).payloadData).getIp());
}

Example 4 with Data

use of org.minidns.record.Data in project minidns by MiniDNS.

the class DNSSECClientTest method testValidNSEC.

@SuppressWarnings("unchecked")
@Test
public void testValidNSEC() throws Exception {
    DNSWorld world = applyZones(client, signedRootZone(sign(rootKSK, "", rootPrivateKSK, algorithm, record("", rootKSK), record("", rootZSK)), sign(rootZSK, "", rootPrivateZSK, algorithm, record("com", ds("com", digestType, comKSK))), sign(rootZSK, "", rootPrivateZSK, algorithm, record("com", ns("ns.com"))), sign(rootZSK, "", rootPrivateZSK, algorithm, record("ns.com", a("1.1.1.1")))), signedZone("com", "ns.com", "1.1.1.1", sign(comKSK, "com", comPrivateKSK, algorithm, record("com", comKSK), record("com", comZSK)), sign(comZSK, "com", comPrivateZSK, algorithm, record("example.com", a("1.1.1.2")))));
    DNSMessage.Builder nsecMessage = DNSMessage.builder();
    List<Record<? extends Data>> records = DNSSECWorld.merge(sign(comZSK, "com", comPrivateZSK, algorithm, record("example.com", nsec("www.example.com", Record.TYPE.A))), sign(comZSK, "com", comPrivateZSK, algorithm, record("example.com", soa("sns.dns.icann.org", "noc.dns.icann.org", 2015081265, 7200, 3600, 1209600, 3600))));
    nsecMessage.setNameserverRecords(records);
    nsecMessage.setAuthoritativeAnswer(true);
    world.addPreparedResponse(new DNSSECWorld.AddressedNsecResponse(InetAddress.getByAddress("ns.com", new byte[] { 1, 1, 1, 1 }), nsecMessage.build()));
    DNSMessage message = client.query("nsec.example.com", Record.TYPE.A);
    client.setStripSignatureRecords(false);
    assertNotNull(message);
    assertEquals(0, message.answerSection.size());
    assertTrue(message.authenticData);
}

Example 5 with Data

use of org.minidns.record.Data in project minidns by MiniDNS.

the class DNSMessageTest method testTXTLookup.

@Test
public void testTXTLookup() throws Exception {
    DNSMessage m = getMessageFromResource("codinghorror-txt");
    HashSet<String> txtToBeFound = new HashSet<>();
    txtToBeFound.add("google-site-verification=2oV3cW79A6icpGf-JbLGY4rP4_omL4FOKTqRxb-Dyl4");
    txtToBeFound.add("keybase-site-verification=dKxf6T30x5EbNIUpeJcbWxUABJEnVWzQ3Z3hCumnk10");
    txtToBeFound.add("v=spf1 include:spf.mandrillapp.com ~all");
    List<Record<? extends Data>> answers = m.answerSection;
    for (Record<? extends Data> r : answers) {
        assertCsEquals("codinghorror.com", r.name);
        Data d = r.getPayload();
        assertTrue(d instanceof TXT);
        assertEquals(TYPE.TXT, d.getType());
        TXT txt = (TXT) d;
        assertTrue(txtToBeFound.contains(txt.getText()));
        txtToBeFound.remove(txt.getText());
    }
    assertEquals(txtToBeFound.size(), 0);
}