Java Record.getType方法代码示例

import org.xbill.DNS.Record; //导入方法依赖的package包/类
public List<DNSServiceRecord> getMultiSRV(String key) throws ConfigException {
  String qkey = fullyQualify(key);
  List<DNSServiceRecord> result = new ArrayList<DNSServiceRecord>();

  List<Record> list = m_records.get(makeHostKey(qkey));
  if (list == null) {
    throw new NotFoundException("No such record: " + makeHostKey(qkey));
  }

  for (Record r : list) {
    if (r.getType() != Type.SRV) {
      continue;
    }

    result.add(new DNSServiceRecord(((SRVRecord) r).rdataToString()));
  }

  return result;
}
 

import org.xbill.DNS.Record; //导入方法依赖的package包/类
private List<InetAddress> resolve(String key) throws UnknownHostException {
  List<InetAddress> result = new ArrayList<InetAddress>();
  List<Record> list = m_records.get(key);
  if (list != null)
    for (Record r : list)
  	
      if (r.getType() == Type.A)
      	result.add(InetAddress.getByName(r.rdataToString()));
      else if ((r.getType() == Type.CNAME)) {
      	List<Record> cnamelist = m_records.get(r.rdataToString());
      	for (Record r1 : cnamelist) {
      		result.add(InetAddress.getByName(r1.rdataToString()));
      	}
      }
      
   

  return result;
}
 

import org.xbill.DNS.Record; //导入方法依赖的package包/类
private String[] findAddresses(Name target, Record[] records) {
	ArrayList<String> addresses = new ArrayList<String>();
	for (Record record : records) {
		if (target == null || target.equals(record.getName())) {
			int recordType = record.getType();
			if (Type.A == recordType)
				addresses.add(((ARecord)record).getAddress().getHostAddress());
			else if (Type.AAAA == recordType)
				addresses.add(((AAAARecord)record).getAddress().getHostAddress());
		}
	}

	if (addresses.size() == 0)
		return null;
	return addresses.toArray(new String[addresses.size()]);
}
 

import org.xbill.DNS.Record; //导入方法依赖的package包/类
/**
 * Determines if at least one of the DS records in the RRset has a supported
 * algorithm.
 * 
 * @param dsRRset The RR set to search in.
 * @return True when at least one DS record uses a supported algorithm,
 *         false otherwise.
 */
static boolean atLeastOneSupportedAlgorithm(RRset dsRRset) {
    Iterator<?> it = dsRRset.rrs();
    while (it.hasNext()) {
        Record r = (Record)it.next();
        if (r.getType() == Type.DS) {
            if (isAlgorithmSupported(((DSRecord)r).getAlgorithm())) {
                return true;
            }

            // do nothing, there could be another DS we understand
        }
    }

    return false;
}
 

import org.xbill.DNS.Record; //导入方法依赖的package包/类
/**
 * Determines if at least one of the DS records in the RRset has a supported
 * digest algorithm.
 * 
 * @param dsRRset The RR set to search in.
 * @return True when at least one DS record uses a supported digest
 *         algorithm, false otherwise.
 */
static boolean atLeastOneDigestSupported(RRset dsRRset) {
    Iterator<?> it = dsRRset.rrs();
    while (it.hasNext()) {
        Record r = (Record)it.next();
        if (r.getType() == Type.DS) {
            if (isDigestSupported(((DSRecord)r).getDigestID())) {
                return true;
            }

            // do nothing, there could be another DS we understand
        }
    }

    return false;
}
 

import org.xbill.DNS.Record; //导入方法依赖的package包/类
public static List<ForwardLookupResult> attemptZoneTransfer(String domain, List<ForwardLookupResult> nameServers) throws TextParseException {
    List<ForwardLookupResult> result = new ArrayList<>();

    ZoneTransferIn xfr;
    Iterator i = nameServers.iterator();
    for (ForwardLookupResult nameServer : nameServers) {
        try {
            xfr = ZoneTransferIn.newAXFR(new Name(domain), nameServer.getIpAddress(), null);
            List records = xfr.run();
            for (Iterator it = records.iterator(); it.hasNext();) {
                Record r = (Record) it.next();
                if (r.getType() == 1) {
                    ForwardLookupResult rec = new ForwardLookupResult(domain);
                    String hostName = ((ARecord) r).getName().toString().toLowerCase();

                    if (hostName.endsWith(".")) {
                        hostName = hostName.substring(0, hostName.length() - 1);
                    }

                    rec.setHostName(hostName);
                    rec.setIpAddress(((ARecord) r).getAddress().getHostAddress());
                    rec.setLookupType("A");
                    result.add(rec);
                }
            }
        } catch (IOException ioex) {
            Logger.getLogger("ForwardLookupHelper.attemptZoneTransfer").log(Level.WARNING, null, ioex);
        } catch (ZoneTransferException zex) {
            Log.debug("ForwardLookupHelper.attemptZoneTransfer: Failed zonetransfer");
        }
    }
    return result;
}
 

import org.xbill.DNS.Record; //导入方法依赖的package包/类
@SuppressWarnings("unchecked")
protected String firstA(Message response) {
    RRset[] sectionRRsets = response.getSectionRRsets(Section.ANSWER);
    if (sectionRRsets.length > 0) {
        Iterator<Record> rrs = sectionRRsets[0].rrs();
        while (rrs.hasNext()) {
            Record r = rrs.next();
            if (r.getType() == Type.A) {
                return ((ARecord)r).getAddress().getHostAddress();
            }
        }
    }

    return null;
}
 

import org.xbill.DNS.Record; //导入方法依赖的package包/类
/**
 * Processes a DNS query.
 *
 * @param sock
 *            Socket to listen to
 */
private void process(DatagramSocket sock) {
    try {
        byte[] in = new byte[UDP_SIZE];

        // Read the question
        DatagramPacket indp = new DatagramPacket(in, UDP_SIZE);
        indp.setLength(UDP_SIZE);
        sock.receive(indp);
        Message msg = new Message(in);
        Header header = msg.getHeader();

        Record question = msg.getQuestion();

        // Prepare a response
        Message response = new Message(header.getID());
        response.getHeader().setFlag(Flags.QR);
        response.addRecord(question, Section.QUESTION);

        Name name = question.getName();
        boolean hasRecords = false;

        String txt = txtRecords.get(name.toString(true));
        if (question.getType() == Type.TXT && txt != null) {
            response.addRecord(new TXTRecord(name, DClass.IN, TTL, txt), Section.ANSWER);
            hasRecords = true;
            LOG.info("dns-01: {} {} IN TXT \"{}\"", name, TTL, txt);
        }

        InetAddress a = aRecords.get(name.toString(true));
        if (question.getType() == Type.A && a != null) {
            response.addRecord(new ARecord(name, DClass.IN, TTL, a), Section.ANSWER);
            hasRecords = true;
            LOG.info("dns-01: {} {} IN A {}", name, TTL, a.getHostAddress());
        }

        if (!hasRecords) {
            response.getHeader().setRcode(Rcode.NXDOMAIN);
            LOG.warn("dns-01: Cannot answer: {}", question);
        }

        // Send the response
        byte[] resp = response.toWire();
        DatagramPacket outdp = new DatagramPacket(resp, resp.length, indp.getAddress(), indp.getPort());
        sock.send(outdp);
    } catch (Exception ex) {
        LOG.error("Failed to process query", ex);
    }
}
 

import org.xbill.DNS.Record; //导入方法依赖的package包/类
private Message lookup(Set<Name> stack, String[] addresses, Message query) throws IOException {
	Message msg = getCached(query);
	if (msg != null)
		return msg;

	if (addresses == null)
		return null;
	Resolver resolver = createResolver(addresses);
	try {
		msg = resolver.send(query);
	} catch (IOException e) {
		return null;
	}
	if (msg == null)
		return null;

	// Found the authoritative answer
	if (msg.getHeader().getFlag(Flags.AA))
		return msg;

	Record[] authority = msg.getSectionArray(Section.AUTHORITY);
	for (Record record : authority) {
		if (Type.NS == record.getType()) {
			Name nameserver = ((NSRecord)record).getTarget();

			// Try to find glue for the record first
			Record[] additional = msg.getSectionArray(Section.ADDITIONAL);
			addresses = findAddresses(nameserver, additional);

			if (stack.contains(nameserver)) // Loop - cannot go there
				continue;
			stack.add(nameserver);
			if (stack.size() > MAX_RECURSION_STACK) // Prevent recursion spinning out of control
				return null;

			// No glue found - lookup target recursively
			if (addresses == null)
				addresses = findAddressesRecursive(stack, nameserver);

			// Chase down to the next level
			Message resp = lookup(stack, addresses, query);
			if (resp != null) {
				addCached(resp);
				return resp;
			}
		}
	}

	return null; // Just couldn't do it
}
 

import org.xbill.DNS.Record; //导入方法依赖的package包/类
/**
 * Load the trust anchor file into the trust anchor store. The trust anchors
 * are currently stored in a zone file format list of DNSKEY or DS records.
 * 
 * @param data The trust anchor data.
 * @throws IOException when the trust anchor data could not be read.
 */
@SuppressWarnings("unchecked")
public void loadTrustAnchors(InputStream data) throws IOException {
    // First read in the whole trust anchor file.
    Master master = new Master(data, Name.root, 0);
    List<Record> records = new ArrayList<Record>();
    Record mr;

    while ((mr = master.nextRecord()) != null) {
        records.add(mr);
    }

    // Record.compareTo() should sort them into DNSSEC canonical order.
    // Don't care about canonical order per se, but do want them to be
    // formable into RRsets.
    Collections.sort(records);

    SRRset currentRrset = new SRRset();
    for (Record r : records) {
        // Skip RR types that cannot be used as trust anchors.
        if (r.getType() != Type.DNSKEY && r.getType() != Type.DS) {
            continue;
        }

        // If our current set is empty, we can just add it.
        if (currentRrset.size() == 0) {
            currentRrset.addRR(r);
            continue;
        }

        // If this record matches our current RRset, we can just add it.
        if (currentRrset.getName().equals(r.getName()) && currentRrset.getType() == r.getType() && currentRrset.getDClass() == r.getDClass()) {
            currentRrset.addRR(r);
            continue;
        }

        // Otherwise, we add the rrset to our set of trust anchors and begin
        // a new set
        this.trustAnchors.store(currentRrset);
        currentRrset = new SRRset();
        currentRrset.addRR(r);
    }

    // add the last rrset (if it was not empty)
    if (currentRrset.size() > 0) {
        this.trustAnchors.store(currentRrset);
    }
}
 

import org.xbill.DNS.Record; //导入方法依赖的package包/类
private Record parseRecord(String line) throws IOException {
    try {
        Master ma = new Master(new ByteArrayInputStream(line.getBytes()), null, 3600);
        Record r = ma.nextRecord();
        if (r.getType() == Type.RRSIG) {
            RRSIGRecord rr = (RRSIGRecord)r;
            // unbound directly uses the DER format for DSA signatures
            // instead of the format specified in rfc2536#section-3
            if (rr.getAlgorithm() == Algorithm.DSA && rr.getSignature().length > 41) {
                Method DSASignaturetoDNS = DNSSEC.class.getDeclaredMethod("DSASignaturetoDNS", byte[].class, int.class);
                DSASignaturetoDNS.setAccessible(true);
                byte[] signature = (byte[])DSASignaturetoDNS.invoke(null, rr.getSignature(), 0);
                RRSIGRecord fixed = new RRSIGRecord(rr.getName(), rr.getDClass(), rr.getTTL(), rr.getTypeCovered(), rr.getAlgorithm(), rr.getOrigTTL(),
                        rr.getExpire(), rr.getTimeSigned(), rr.getFootprint(), rr.getSigner(), signature);
                Field f = getField(RRSIGRecord.class, "labels");
                f.setAccessible(true);
                f.set(fixed, rr.getLabels());
                r = fixed;
            }
        }

        return r;
    }
    catch (Exception ex) {
        if (ex.getMessage() != null && ex.getMessage().contains("expected an integer")) {
            String[] data = line.split("\\s");
            StringBuilder sb = new StringBuilder();
            for (int i = 0; i < data.length; i++) {
                if (this.algoStrings.contains(data[i])) {
                    sb.append(Algorithm.value(data[i]));
                }
                else {
                    sb.append(data[i]);
                }
                sb.append(' ');
            }

            return parseRecord(sb.toString());
        }
        else {
            throw new IOException(line, ex);
        }
    }
}