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

Example 1 with Cache

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

the class RawRecursiveDNSCertQuery method main.

public static void main(String[] args) {
    if (args.length == 0) {
        printUsage();
        System.exit(-1);
    }
    String emailAddress = "";
    String[] servers = null;
    // Check parameters
    for (int i = 0; i < args.length; i++) {
        String arg = args[i];
        // Options
        if (!arg.startsWith("-")) {
            System.err.println("Error: Unexpected argument [" + arg + "]\n");
            printUsage();
            System.exit(-1);
        } else if (arg.equalsIgnoreCase("-add")) {
            if (i == args.length - 1 || args[i + 1].startsWith("-")) {
                System.err.println("Error: Missing email address");
                System.exit(-1);
            }
            emailAddress = args[++i];
        } else if (arg.equals("-server")) {
            if (i == args.length - 1 || args[i + 1].startsWith("-")) {
                System.err.println("Error: Missing DNS server list");
                System.exit(-1);
            }
            servers = args[++i].split(",");
        } else if (arg.equals("-help")) {
            printUsage();
            System.exit(-1);
        } else {
            System.err.println("Error: Unknown argument " + arg + "\n");
            printUsage();
            System.exit(-1);
        }
    }
    if (emailAddress == null || emailAddress.isEmpty()) {
        System.err.println("You must provide an email address.");
        printUsage();
    }
    setServers(servers);
    int attemptCount = 0;
    while (true) {
        try {
            final String lookupName = emailAddress.replace('@', '.');
            // run this forever
            final Lookup lu = new Lookup(new Name(lookupName), Type.CERT);
            lu.setResolver(createExResolver(dnsServers.toArray(new String[dnsServers.size()]), 0, 6));
            lu.setSearchPath((String[]) null);
            // clear the cache
            lu.setCache(new Cache(DClass.IN));
            long startTime = System.currentTimeMillis();
            final Record[] retRecords = lu.run();
            long endTime = System.currentTimeMillis();
            if (retRecords == null || retRecords.length == 0) {
                System.out.println("----- Found no certificates -------");
                System.out.println("\tDNS search took " + (endTime - startTime) + "ms\r\n");
                System.out.println("Failed after " + attemptCount + " successful resolution attempts.");
                System.exit(0);
            } else {
                System.out.println("Found " + retRecords.length + " certificates");
            }
            System.out.println("\tDNS search took " + (endTime - startTime) + "ms\r\n");
            Thread.sleep(1000);
        } catch (Exception e) {
            e.printStackTrace();
        }
        ++attemptCount;
    }
}

Example 2 with Cache

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

the class DNSConnectionTest method performLookup.

private static void performLookup() throws Exception {
    // turn on debug settings for the DNS client
    Options.set("verbose", "true");
    Cache ch = Lookup.getDefaultCache(DClass.IN);
    ch.clearCache();
    if (servers == null || servers.length == 0)
        servers = ResolverConfig.getCurrentConfig().servers();
    System.out.println("\r\nConfigure DNS resolvers:");
    for (String server : servers) {
        System.out.println("\t" + server);
    }
    System.out.println("\r\nLookup up record " + lookupRec);
    Lookup lu = new Lookup(new Name(lookupRec), recType);
    ExtendedResolver resolver = new ExtendedResolver(servers);
    resolver.setTCP(useTCP);
    lu.setResolver(resolver);
    Record[] retRecords = lu.run();
    if (retRecords != null && retRecords.length > 0)
        System.out.println(retRecords.length + " records found.");
    else
        System.out.println("No records found.");
}

Example 3 with Cache

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

the class DNSServer method parseConfiguration.

protected void parseConfiguration(final String conffile) throws ConfigurationException, IOException, ZoneTransferException, UnknownHostException {
    final FileInputStream fs;
    final InputStreamReader isr;
    final BufferedReader br;
    try {
        fs = new FileInputStream(conffile);
        isr = new InputStreamReader(fs);
        br = new BufferedReader(isr);
    } catch (final Exception e) {
        LOG.error("Cannot open {}", conffile, e);
        throw new ConfigurationException("unable to read from " + conffile, e);
    }
    try {
        String line = null;
        while ((line = br.readLine()) != null) {
            final StringTokenizer st = new StringTokenizer(line);
            if (!st.hasMoreTokens()) {
                continue;
            }
            final String keyword = st.nextToken();
            if (!st.hasMoreTokens()) {
                LOG.warn("unable to parse line: {}", line);
                continue;
            }
            if (keyword.charAt(0) == '#') {
                continue;
            }
            if (keyword.equals("primary")) {
                addPrimaryZone(st.nextToken(), st.nextToken());
            } else if (keyword.equals("secondary")) {
                addSecondaryZone(st.nextToken(), st.nextToken());
            } else if (keyword.equals("cache")) {
                final Cache cache = new Cache(st.nextToken());
                m_caches.put(Integer.valueOf(DClass.IN), cache);
            } else if (keyword.equals("key")) {
                final String s1 = st.nextToken();
                final String s2 = st.nextToken();
                if (st.hasMoreTokens()) {
                    addTSIG(s1, s2, st.nextToken());
                } else {
                    addTSIG("hmac-md5", s1, s2);
                }
            } else if (keyword.equals("port")) {
                m_ports.add(Integer.valueOf(st.nextToken()));
            } else if (keyword.equals("address")) {
                final String addr = st.nextToken();
                m_addresses.add(Address.getByAddress(addr));
            } else {
                LOG.warn("unknown keyword: {}", keyword);
            }
        }
    } finally {
        fs.close();
    }
}

Example 4 with Cache

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

the class DNSServer method getCache.

public Cache getCache(final int dclass) {
    Cache c = m_caches.get(dclass);
    if (c == null) {
        c = new Cache(dclass);
        m_caches.put(Integer.valueOf(dclass), c);
    }
    return c;
}

Example 5 with Cache

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

the class DNSServer method findExactMatch.

public RRset findExactMatch(final Name name, final int type, final int dclass, final boolean glue) {
    final Zone zone = findBestZone(name);
    if (zone != null) {
        return zone.findExactMatch(name, type);
    } else {
        final RRset[] rrsets;
        final Cache cache = getCache(dclass);
        if (glue) {
            rrsets = cache.findAnyRecords(name, type);
        } else {
            rrsets = cache.findRecords(name, type);
        }
        if (rrsets == null) {
            return null;
        } else {
            return rrsets[0];
        /* not quite right */
        }
    }
}