Examples with TextParseException org.xbill.DNS.TextParseException used on opensource projects

Example 16 with TextParseException

use of org.xbill.DNS.TextParseException in project fabric8 by jboss-fuse.

the class KubernetesHelper method lookupServiceInDns.

/**
 * Looks up the service in DNS.
 * If this is a headless service, this call returns the endpoint IPs from DNS.
 * If this is a non-headless service, this call returns the service IP only.
 * <p/>
 * See https://github.com/GoogleCloudPlatform/kubernetes/blob/master/docs/services.md#headless-services
 */
public static Set<String> lookupServiceInDns(String serviceName) throws IllegalArgumentException, UnknownHostException {
    try {
        Lookup l = new Lookup(serviceName);
        Record[] records = l.run();
        if (l.getResult() == Lookup.SUCCESSFUL) {
            Set<String> endpointAddresses = new HashSet<>(records.length);
            for (int i = 0; i < records.length; i++) {
                ARecord aRecord = (ARecord) records[i];
                endpointAddresses.add(aRecord.getAddress().getHostAddress());
            }
            return endpointAddresses;
        } else {
            LOG.warn("Lookup {} result: {}", serviceName, l.getErrorString());
        }
    } catch (TextParseException e) {
        LOG.error("Unparseable service name: {}", serviceName, e);
    } catch (ClassCastException e) {
        LOG.error("Invalid response from DNS server - should have been A records", e);
    }
    return Collections.EMPTY_SET;
}

Example 17 with TextParseException

use of org.xbill.DNS.TextParseException in project nhin-d by DirectProject.

the class ServiceTest method testSOA.

//  @Test
public void testSOA() {
    DNSEntryForm SoadnsForm = new DNSEntryForm();
    SoadnsForm.setName("savvy");
    SoadnsForm.setTtl(84555L);
    SoadnsForm.setAdmin("ns.savvy.com");
    SoadnsForm.setDomain("ns2.savvy.com");
    SoadnsForm.setSerial(4L);
    SoadnsForm.setRefresh(6L);
    SoadnsForm.setRetry(8L);
    SoadnsForm.setExpire(66L);
    SoadnsForm.setMinimum(22L);
    Collection<DNSRecord> records = new ArrayList<DNSRecord>();
    records.add(DNSRecordUtils.createSOARecord(SoadnsForm.getName(), SoadnsForm.getTtl(), SoadnsForm.getDomain(), SoadnsForm.getAdmin(), (int) SoadnsForm.getSerial(), SoadnsForm.getRefresh(), SoadnsForm.getRetry(), SoadnsForm.getExpire(), SoadnsForm.getMinimum()));
    try {
        configSvc.addDNS(records);
        Collection<DNSRecord> arecords = configSvc.getDNSByType(DNSType.SOA.getValue());
        for (Iterator<DNSRecord> iter = arecords.iterator(); iter.hasNext(); ) {
            DNSRecord arec = iter.next();
            SOARecord newrec = (SOARecord) Record.newRecord(Name.fromString(arec.getName()), arec.getType(), arec.getDclass(), arec.getTtl(), arec.getData());
            System.out.println("A admin: " + newrec.getAdmin());
            System.out.println("A name: " + newrec.getName());
        }
    } catch (ConfigurationServiceException e) {
        e.printStackTrace();
    } catch (TextParseException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
}

Example 18 with TextParseException

use of org.xbill.DNS.TextParseException in project opennms by OpenNMS.

the class DnsUtils method resolveHostname.

/**
 * This function is used inside XSLT documents, do a string search before refactoring.
 */
public static InetAddress resolveHostname(final String hostname, final boolean preferInet6Address, final boolean throwException) throws UnknownHostException {
    InetAddress retval = null;
    // return valid A and AAAA records for "localhost".
    if ("localhost".equals(hostname)) {
        return preferInet6Address ? InetAddress.getByName("::1") : InetAddress.getByName("127.0.0.1");
    }
    try {
        // 2011-05-22 - Matt is seeing some platform-specific inconsistencies when using
        // InetAddress.getAllByName(). It seems to miss some addresses occasionally on Mac.
        // We need to use dnsjava here instead since it should be 100% reliable.
        // 
        // InetAddress[] addresses = InetAddress.getAllByName(hostname);
        // 
        List<InetAddress> v4Addresses = new ArrayList<>();
        try {
            Record[] aRecs = new Lookup(hostname, Type.A).run();
            if (aRecs != null) {
                for (Record aRec : aRecs) {
                    if (aRec instanceof ARecord) {
                        InetAddress addr = ((ARecord) aRec).getAddress();
                        if (addr instanceof Inet4Address) {
                            v4Addresses.add(addr);
                        } else {
                            // Should never happen
                            throw new UnknownHostException("Non-IPv4 address found via A record DNS lookup of host: " + hostname + ": " + addr.toString());
                        }
                    }
                }
            } else {
            // throw new UnknownHostException("No IPv4 addresses found via A record DNS lookup of host: " + hostname);
            }
        } catch (final TextParseException e) {
            final UnknownHostException ex = new UnknownHostException("Could not perform A record lookup for host: " + hostname);
            ex.initCause(e);
            throw ex;
        }
        final List<InetAddress> v6Addresses = new ArrayList<>();
        try {
            final Record[] quadARecs = new Lookup(hostname, Type.AAAA).run();
            if (quadARecs != null) {
                for (final Record quadARec : quadARecs) {
                    final InetAddress addr = ((AAAARecord) quadARec).getAddress();
                    if (addr instanceof Inet6Address) {
                        v6Addresses.add(addr);
                    } else {
                        // Should never happen
                        throw new UnknownHostException("Non-IPv6 address found via AAAA record DNS lookup of host: " + hostname + ": " + addr.toString());
                    }
                }
            } else {
            // throw new UnknownHostException("No IPv6 addresses found via AAAA record DNS lookup of host: " + hostname);
            }
        } catch (final TextParseException e) {
            final UnknownHostException ex = new UnknownHostException("Could not perform AAAA record lookup for host: " + hostname);
            ex.initCause(e);
            throw ex;
        }
        final List<InetAddress> addresses = new ArrayList<>();
        if (preferInet6Address) {
            addresses.addAll(v6Addresses);
            addresses.addAll(v4Addresses);
        } else {
            addresses.addAll(v4Addresses);
            addresses.addAll(v6Addresses);
        }
        for (final InetAddress address : addresses) {
            retval = address;
            if (!preferInet6Address && retval instanceof Inet4Address)
                break;
            if (preferInet6Address && retval instanceof Inet6Address)
                break;
        }
        if (preferInet6Address && !(retval instanceof Inet6Address)) {
            throw new UnknownHostException("No IPv6 address could be found for the hostname: " + hostname);
        }
    } catch (final UnknownHostException e) {
        if (throwException) {
            throw e;
        } else {
            // e.printStackTrace();
            return null;
        }
    }
    return retval;
}

Example 19 with TextParseException

use of org.xbill.DNS.TextParseException in project xabber-android by redsolution.

the class ExtDNSJavaResolver method lookupSRVRecords0.

@Override
protected List<SRVRecord> lookupSRVRecords0(String name, List<HostAddress> failedAddresses, ConnectionConfiguration.DnssecMode dnssecMode) {
    List<SRVRecord> res = new ArrayList<SRVRecord>();
    org.xbill.DNS.ResolverConfig.refresh();
    ExtLookup lookup;
    String[] servers = getDNSServersListForOreo();
    try {
        lookup = new ExtLookup(name, Type.SRV);
        if (servers != null && servers.length > 0)
            lookup.setResolver(new ExtendedResolver(servers));
        else
            lookup.setResolver(new ExtendedResolver());
    } catch (TextParseException e) {
        throw new IllegalStateException(e);
    } catch (UnknownHostException e) {
        throw new RuntimeException("Failed to initialize resolver");
    }
    Record[] recs = lookup.run();
    if (recs == null)
        return res;
    for (Record record : recs) {
        org.xbill.DNS.SRVRecord srvRecord = (org.xbill.DNS.SRVRecord) record;
        if (srvRecord != null && srvRecord.getTarget() != null) {
            String host = srvRecord.getTarget().toString();
            int port = srvRecord.getPort();
            int priority = srvRecord.getPriority();
            int weight = srvRecord.getWeight();
            List<InetAddress> hostAddresses = lookupHostAddress0(host, failedAddresses, dnssecMode);
            if (hostAddresses == null) {
                continue;
            }
            SRVRecord r = new SRVRecord(host, port, priority, weight, hostAddresses);
            res.add(r);
        }
    }
    return res;
}

Example 20 with TextParseException

use of org.xbill.DNS.TextParseException in project jmeter by apache.

the class DNSCacheManager method customRequestLookup.

private InetAddress[] customRequestLookup(String host) throws UnknownHostException {
    InetAddress[] addresses = null;
    try {
        Lookup lookup = new Lookup(host, Type.A);
        lookup.setCache(lookupCache);
        if (timeoutMs > 0) {
            resolver.setTimeout(timeoutMs / 1000, timeoutMs % 1000);
        }
        lookup.setResolver(resolver);
        Record[] records = lookup.run();
        if (records == null || records.length == 0) {
            throw new UnknownHostException("Failed to resolve host name: " + host);
        }
        addresses = new InetAddress[records.length];
        for (int i = 0; i < records.length; i++) {
            addresses[i] = ((ARecord) records[i]).getAddress();
        }
    } catch (TextParseException tpe) {
        // NOSONAR Exception handled
        log.debug("Failed to create Lookup object for host:{}, error message:{}", host, tpe.toString());
    }
    return addresses;
}