Java Code Examples for org.xbill.DNS.Record#newRecord()

The following examples show how to use org.xbill.DNS.Record#newRecord() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: DNSLookupService.java    From openvisualtraceroute with GNU Lesser General Public License v3.0 6 votes vote down vote up 
/**
 * Dns lookup more efficient than the INetAddress.getHostName(ip)
 *
 * @param hostIp
 * @return
 * @throws IOException
 */
public String dnsLookup(final String hostIp) {
	try {
		final Name name = ReverseMap.fromAddress(hostIp);
		final int type = Type.PTR;
		final int dclass = DClass.IN;
		final Record rec = Record.newRecord(name, type, dclass);
		final Message query = Message.newQuery(rec);

		final Message response = _resolver.send(query);

		final Record[] answers = response.getSectionArray(Section.ANSWER);
		if (answers.length > 0) {
			String ret = answers[0].rdataToString();
			if (ret.endsWith(".")) {
				ret = ret.substring(0, ret.length() - 1);
			}
			return ret;
		}
	} catch (final IOException e) {
		LOGGER.warn("Failed to resolve hostname for " + hostIp, e);
	}
	return UNKNOWN_HOST;
}
Example 2
Source File: XBillDnsSrvResolverTest.java    From dns-java with Apache License 2.0 6 votes vote down vote up 
private Message messageWithNodes(String query, String[] names) throws TextParseException {
  Name queryName = Name.fromString(query);
  Record question = Record.newRecord(queryName, Type.SRV, DClass.IN);
  Message queryMessage = Message.newQuery(question);
  Message result = new Message();
  result.setHeader(queryMessage.getHeader());
  result.addRecord(question, Section.QUESTION);

  for (String name1 : names) {
    result.addRecord(
        new SRVRecord(queryName, DClass.IN, 1, 1, 1, 8080, Name.fromString(name1)),
        Section.ANSWER);
  }

  return result;
}
Example 3
Source File: update.java    From dnsjava with BSD 2-Clause "Simplified" License 6 votes vote down vote up 
void doProhibit(Tokenizer st) throws IOException {
  Tokenizer.Token token;
  Name name;
  Record record;
  int type;

  name = st.getName(zone);
  token = st.get();
  if (token.isString()) {
    if ((type = Type.value(token.value)) < 0) {
      throw new IOException("Invalid type: " + token.value);
    }
  } else {
    type = Type.ANY;
  }
  record = Record.newRecord(name, type, DClass.NONE, 0);
  query.addRecord(record, Section.PREREQ);
  print(record);
}
Example 4
Source File: IpAddressUtil.java    From megatron-java with Apache License 2.0 6 votes vote down vote up 
private static String reverseDnsLookupUsingDnsJavaSimpleResolver(long ipAddress) throws IOException {
    String result = null;
    byte[] address = convertLongAddressToBuf(ipAddress);
    Name name = ReverseMap.fromAddress(InetAddress.getByAddress(address));
    Record record = Record.newRecord(name, Type.PTR, DClass.IN);
    Message query = Message.newQuery(record);
    Message response = simpleResolver.send(query);
    Record[] answers = response.getSectionArray(Section.ANSWER);
    if (answers.length != 0) {
        // If PTR-record exists this will be at index 1 or above (more than one PTR-record may exist)
        Record answer = (answers.length > 1) ? answers[1] : answers[0];  
        result = answer.rdataToString();
        // remove trailing "."
        result = result.endsWith(".") ? result.substring(0, result.length() - 1) : result;
    } else {
        throw new IOException("Empty DNS response.");
    }
    return result;
}
Example 5
Source File: OpenAliasHelper.java    From xmrwallet with Apache License 2.0 5 votes vote down vote up 
@Override
protected Boolean doInBackground(String... args) {
    //main();
    if (args.length != 1) return false;
    String name = args[0];
    if ((name == null) || (name.isEmpty()))
        return false; //pointless trying to lookup nothing
    Timber.d("Resolving %s", name);
    try {
        SimpleResolver sr = new SimpleResolver(DNSSEC_SERVERS[new Random().nextInt(DNSSEC_SERVERS.length)]);
        ValidatingResolver vr = new ValidatingResolver(sr);
        vr.setTimeout(0, DNS_LOOKUP_TIMEOUT);
        vr.loadTrustAnchors(new ByteArrayInputStream(ROOT.getBytes("ASCII")));
        Record qr = Record.newRecord(Name.fromConstantString(name + "."), Type.TXT, DClass.IN);
        Message response = vr.send(Message.newQuery(qr));
        final int rcode = response.getRcode();
        if (rcode != Rcode.NOERROR) {
            Timber.i("Rcode: %s", Rcode.string(rcode));
            for (RRset set : response.getSectionRRsets(Section.ADDITIONAL)) {
                if (set.getName().equals(Name.root) && set.getType() == Type.TXT
                        && set.getDClass() == ValidatingResolver.VALIDATION_REASON_QCLASS) {
                    Timber.i("Reason:  %s", ((TXTRecord) set.first()).getStrings().get(0));
                }
            }
            return false;
        } else {
            dnssec = response.getHeader().getFlag(Flags.AD);
            for (Record record : response.getSectionArray(Section.ANSWER)) {
                if (record.getType() == Type.TXT) {
                    txts.addAll(((TXTRecord) record).getStrings());
                }
            }
        }
    } catch (IOException | IllegalArgumentException ex) {
        return false;
    }
    return true;
}
Example 6
Source File: XBillDnsSrvResolverTest.java    From dns-java with Apache License 2.0 5 votes vote down vote up 
private Message messageWithRCode(String query, int rcode) throws TextParseException {
  Name queryName = Name.fromString(query);
  Record question = Record.newRecord(queryName, Type.SRV, DClass.IN);
  Message queryMessage = Message.newQuery(question);
  Message result = new Message();
  result.setHeader(queryMessage.getHeader());
  result.addRecord(question, Section.QUESTION);

  result.getHeader().setRcode(rcode);

  return result;
}
Example 7
Source File: update.java    From dnsjava with BSD 2-Clause "Simplified" License 5 votes vote down vote up 
void doRequire(Tokenizer st) throws IOException {
  Tokenizer.Token token;
  Name name;
  Record record;
  int type;

  name = st.getName(zone);
  token = st.get();
  if (token.isString()) {
    if ((type = Type.value(token.value)) < 0) {
      throw new IOException("Invalid type: " + token.value);
    }
    token = st.get();
    boolean iseol = token.isEOL();
    st.unget();
    if (!iseol) {
      record = Record.fromString(name, type, defaultClass, 0, st, zone);
    } else {
      record = Record.newRecord(name, type, DClass.ANY, 0);
    }
  } else {
    record = Record.newRecord(name, Type.ANY, DClass.ANY, 0);
  }

  query.addRecord(record, Section.PREREQ);
  print(record);
}
Example 8
Source File: update.java    From dnsjava with BSD 2-Clause "Simplified" License 5 votes vote down vote up 
void doDelete(Tokenizer st) throws IOException {
  Tokenizer.Token token;
  String s;
  Name name;
  Record record;
  int type;

  name = st.getName(zone);
  token = st.get();
  if (token.isString()) {
    s = token.value;
    if (DClass.value(s) >= 0) {
      s = st.getString();
    }
    if ((type = Type.value(s)) < 0) {
      throw new IOException("Invalid type: " + s);
    }
    token = st.get();
    boolean iseol = token.isEOL();
    st.unget();
    if (!iseol) {
      record = Record.fromString(name, type, DClass.NONE, 0, st, zone);
    } else {
      record = Record.newRecord(name, type, DClass.ANY, 0);
    }
  } else {
    record = Record.newRecord(name, Type.ANY, DClass.ANY, 0);
  }

  query.addRecord(record, Section.UPDATE);
  print(record);
}