@SuppressWarnings("unchecked")
public void execute() throws Exception {
// Read in the zone
List<Record> records = ZoneUtils.readZoneFile(state.inputfile, null);
if (records == null || records.size() == 0) {
System.err.println("error: empty RRset file");
state.usage();
}
// Construct the RRset. Complain if the records in the input file
// consist of more than one RRset.
RRset rrset = null;
for (Record r : records) {
// skip RRSIGs
if (r.getType() == Type.RRSIG || r.getType() == Type.SIG) {
continue;
}
// Handle the first record.
if (rrset == null) {
rrset = new RRset();
rrset.addRR(r);
continue;
}
// Ensure that the remaining records all belong to the same rrset.
if (rrset.getName().equals(r.getName())
&& rrset.getType() == r.getType()
&& rrset.getDClass() == r.getDClass()) {
rrset.addRR(r);
} else {
System.err.println("Records do not all belong to the same RRset.");
state.usage();
}
}
if (rrset.size() == 0) {
System.err.println("No records found in inputfile.");
state.usage();
}
// Load the key pairs.
if (state.keyFiles.length == 0) {
System.err.println("error: at least one keyfile must be specified");
state.usage();
}
List<DnsKeyPair> keypairs = getKeys(state.keyFiles, 0, state.keyDirectory);
// Make sure that all the keypairs have the same name.
// This will be used as the zone name, too.
Name keysetName = null;
for (DnsKeyPair pair : keypairs) {
if (keysetName == null) {
keysetName = pair.getDNSKEYName();
continue;
}
if (!pair.getDNSKEYName().equals(keysetName)) {
System.err.println("Keys do not all have the same name.");
state.usage();
}
}
// default the output file, if not set.
if (state.outputfile == null && !state.inputfile.equals("-")) {
state.outputfile = state.inputfile + ".signed";
}
JCEDnsSecSigner signer = new JCEDnsSecSigner();
List<RRSIGRecord> sigs = signer.signRRset(rrset, keypairs, state.start, state.expire);
for (RRSIGRecord s : sigs) {
rrset.addRR(s);
}
// write out the signed RRset
List<Record> signed_records = new ArrayList<Record>();
for (Iterator<Record> i = rrset.rrs(); i.hasNext(); ) {
signed_records.add(i.next());
}
for (Iterator<Record> i = rrset.sigs(); i.hasNext(); ) {
signed_records.add(i.next());
}
// write out the signed zone
ZoneUtils.writeZoneFile(signed_records, state.outputfile);
if (state.verifySigs) {
log.fine("verifying generated signatures");
boolean res = verifySigs(keysetName, signed_records, keypairs);
if (res) {
System.out.println("Generated signatures verified");
// log.info("Generated signatures verified");
} else {
System.out.println("Generated signatures did not verify.");
// log.warn("Generated signatures did not verify.");
}
}
}
/**
* Processes all DNS CERT requests.
*
* @param name The record name. In many cases this a email address.
* @return Returns a set of record responses to the request.
* @throws DNSException
*/
@SuppressWarnings("unused")
protected RRset processCERTRecordRequest(String name) throws DNSException {
if (name.endsWith(".")) name = name.substring(0, name.length() - 1);
Certificate[] certs;
// use the certificate configuration service
try {
certs = proxy.getCertificatesForOwner(name, null);
} catch (Exception e) {
throw new DNSException(
DNSError.newError(Rcode.SERVFAIL),
"DNS service proxy call for certificates failed: " + e.getMessage(),
e);
}
if (certs == null || certs.length == 0) {
// unless the call above was for an org level cert, it will probably always fail because the
// "name" parameter has had all instances of "@" replaced with ".". The certificate service
// stores owners using "@".
// This is horrible, but try hitting the cert service replacing each "." with "@" one by one.
// Start at the beginning of the address because this is more than likely where the "@"
// character
// will be.
int previousIndex = 0;
int replaceIndex = 0;
while ((replaceIndex = name.indexOf(".", previousIndex)) > -1) {
char[] chars = name.toCharArray();
chars[replaceIndex] = '@';
try {
certs = proxy.getCertificatesForOwner(String.copyValueOf(chars), null);
} catch (Exception e) {
throw new DNSException(
DNSError.newError(Rcode.SERVFAIL),
"DNS service proxy call for certificates failed: " + e.getMessage(),
e);
}
if (certs != null && certs.length > 0) break;
if (replaceIndex >= (name.length() - 1)) break;
previousIndex = replaceIndex + 1;
}
}
if (certs == null || certs.length == 0) return null;
if (!name.endsWith(".")) name += ".";
RRset retVal = new RRset();
try {
for (Certificate cert : certs) {
int certRecordType = CERTRecord.PKIX;
byte[] retData = null;
X509Certificate xCert = null;
try {
// need to convert to cert container because this might be
// a certificate with wrapped private key data
final CertUtils.CertContainer cont = CertUtils.toCertContainer(cert.getData());
xCert = cont.getCert();
// check if this is a compliant certificate with the configured policy... if not, move on
if (!isCertCompliantWithPolicy(xCert)) continue;
retData = xCert.getEncoded();
} catch (CertificateConversionException e) {
// probably not a Certificate... might be a URL
}
if (xCert == null) {
// see if it's a URL
try {
retData = cert.getData();
URL url = new URL(new String(retData));
certRecordType = CERTRecord.URI;
} catch (Exception e) {
throw new DNSException(
DNSError.newError(Rcode.SERVFAIL),
"Failure while parsing CERT record data: " + e.getMessage(),
e);
}
}
int keyTag = 0;
int alg = 0;
if (xCert != null && xCert.getPublicKey() instanceof RSAKey) {
RSAKey key = (RSAKey) xCert.getPublicKey();
byte[] modulus = key.getModulus().toByteArray();
keyTag = (modulus[modulus.length - 2] << 8) & 0xFF00;
keyTag |= modulus[modulus.length - 1] & 0xFF;
alg = 5;
}
CERTRecord rec =
new CERTRecord(
Name.fromString(name),
DClass.IN,
86400L,
certRecordType,
keyTag,
alg /*public key alg, RFC 4034*/,
retData);
retVal.addRR(rec);
}
} catch (Exception e) {
throw new DNSException(
DNSError.newError(Rcode.SERVFAIL),
"Failure while parsing CERT record data: " + e.getMessage(),
e);
}
// because of policy filtering, it's possible that we could have filtered out every cert
// resulting in an empty RR set
return (retVal.size() == 0) ? null : retVal;
}
