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/**
* ============LICENSE_START====================================================
* org.onap.aaf
* ===========================================================================
* Copyright (c) 2018 AT&T Intellectual Property. All rights reserved.
* ===========================================================================
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* ============LICENSE_END====================================================
*
*/
package org.onap.aaf.auth.cm.ca;
import java.io.FileReader;
import java.io.IOException;
import java.net.Authenticator;
import java.net.MalformedURLException;
import java.net.PasswordAuthentication;
import java.net.URL;
import java.security.cert.CertStoreException;
import java.security.cert.Certificate;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import org.bouncycastle.operator.OperatorCreationException;
import org.bouncycastle.pkcs.PKCS10CertificationRequest;
import org.jscep.client.Client;
import org.jscep.client.ClientException;
import org.jscep.client.EnrollmentResponse;
import org.jscep.client.verification.CertificateVerifier;
import org.jscep.transaction.TransactionException;
import org.onap.aaf.auth.cm.cert.BCFactory;
import org.onap.aaf.auth.cm.cert.CSRMeta;
import org.onap.aaf.cadi.Access;
import org.onap.aaf.cadi.LocatorException;
import org.onap.aaf.cadi.Access.Level;
import org.onap.aaf.cadi.Locator.Item;
import org.onap.aaf.cadi.cm.CertException;
import org.onap.aaf.cadi.locator.HotPeerLocator;
import org.onap.aaf.misc.env.Env;
import org.onap.aaf.misc.env.TimeTaken;
import org.onap.aaf.misc.env.Trans;
import org.onap.aaf.misc.env.util.Split;
public class JscepCA extends CA {
static final String CA_PREFIX = "http://";
static final String CA_POSTFIX="/certsrv/mscep_admin/mscep.dll";
private final static String MS_PROFILE="1";
private final static int MAX_RETRY=3;
public static final long INVALIDATE_TIME = 1000*60*10L; // 10 mins
// package on purpose
private Map<String,X509ChainWithIssuer> mxcwi_s;
private Map<Client,X509ChainWithIssuer> mxcwi_c;
private JscepClientLocator clients;
public JscepCA(final Access access, final String name, final String env, String [][] params) throws IOException, CertException, LocatorException {
super(access, name, env);
mxcwi_s = new ConcurrentHashMap<String,X509ChainWithIssuer>();
mxcwi_c = new ConcurrentHashMap<Client,X509ChainWithIssuer>();
if(params.length<2) {
throw new CertException("No Trust Chain parameters are included");
}
if(params[0].length<2) {
throw new CertException("User/Password required for JSCEP");
}
final String id = params[0][0];
final String pw = params[0][1];
// Set this for NTLM password Microsoft
Authenticator.setDefault(new Authenticator() {
public PasswordAuthentication getPasswordAuthentication () {
try {
return new PasswordAuthentication (id,access.decrypt(pw,true).toCharArray());
} catch (IOException e) {
access.log(e);
}
return null;
}
});
StringBuilder urlstr = new StringBuilder();
for(int i=1;i<params.length;++i) { // skip first section, which is user/pass
// Work
if(i>1) {
urlstr.append(','); // delimiter
}
urlstr.append(params[i][0]);
String dir = access.getProperty(CM_PUBLIC_DIR, "");
if(!"".equals(dir) && !dir.endsWith("/")) {
dir = dir + '/';
}
String path;
List<FileReader> frs = new ArrayList<FileReader>(params.length-1);
try {
for(int j=1; j<params[i].length; ++j) { // first 3 taken up, see above
path = !params[i][j].contains("/")?dir+params[i][j]:params[i][j];
access.printf(Level.INIT, "Loading a TrustChain Member for %s from %s",name, path);
frs.add(new FileReader(path));
}
X509ChainWithIssuer xcwi = new X509ChainWithIssuer(frs);
addCaIssuerDN(xcwi.getIssuerDN());
mxcwi_s.put(params[i][0],xcwi);
} finally {
for(FileReader fr : frs) {
if(fr!=null) {
fr.close();
}
}
}
}
clients = new JscepClientLocator(access,urlstr.toString());
}
// package on purpose
@Override
public X509ChainWithIssuer sign(Trans trans, CSRMeta csrmeta) throws IOException, CertException {
TimeTaken tt = trans.start("Generating CSR and Keys for New Certificate", Env.SUB);
PKCS10CertificationRequest csr;
try {
csr = csrmeta.generateCSR(trans);
if(trans.info().isLoggable()) {
trans.info().log(BCFactory.toString(csr));
}
if(trans.info().isLoggable()) {
trans.info().log(csr);
}
} finally {
tt.done();
}
tt = trans.start("Enroll CSR", Env.SUB);
Client client = null;
Item item = null;
for(int i=0; i<MAX_RETRY;++i) {
try {
item = clients.best();
client = clients.get(item);
EnrollmentResponse er = client.enrol(
csrmeta.initialConversationCert(trans),
csrmeta.keypair(trans).getPrivate(),
csr,
MS_PROFILE /* profile... MS can't deal with blanks*/);
while(true) {
if(er.isSuccess()) {
trans.checkpoint("Cert from " + clients.info(item));
X509Certificate x509 = null;
for( Certificate cert : er.getCertStore().getCertificates(null)) {
if(x509==null) {
x509 = (X509Certificate)cert;
break;
}
}
X509ChainWithIssuer mxcwi = mxcwi_c.get(client);
return new X509ChainWithIssuer(mxcwi,x509);
// break;
} else if (er.isPending()) {
trans.checkpoint("Polling, waiting on CA to complete");
Thread.sleep(3000);
} else if (er.isFailure()) {
// switch(er.getFailInfo()) {
// case badMessageCheck:
// throw new ClientException("Received BadMessageCheck from Jscep");
// case badAlg:
// case badCertId:
// case badRequest:
// case badTime:
// default:
// }
throw new CertException(clients.info(item)+':'+er.getFailInfo().toString());
}
}
//i=MAX_RETRY;
} catch(LocatorException e) {
trans.error().log(e);
i=MAX_RETRY;
} catch (ClientException e) {
trans.error().log(e,"SCEP Client Error, Temporarily Invalidating Client: " + clients.info(item));
try {
clients.invalidate(client);
if(!clients.hasItems()) {
clients.refresh();
}
} catch (LocatorException e1) {
trans.error().log(e,clients.info(item));
i=MAX_RETRY; // can't go any further
}
} catch (InterruptedException|TransactionException|CertificateException|OperatorCreationException | CertStoreException e) {
trans.error().log(e);
i=MAX_RETRY;
} finally {
tt.done();
}
}
return null;
}
/**
* Locator specifically for Jscep Clients.
*
* Class based client for access to common Map
*/
private class JscepClientLocator extends HotPeerLocator<Client> {
protected JscepClientLocator(Access access, String urlstr)throws LocatorException {
super(access, urlstr, JscepCA.INVALIDATE_TIME,
access.getProperty("cadi_latitude","39.833333"), //Note: Defaulting to GEO center of US
access.getProperty("cadi_longitude","-98.583333")
);
}
@Override
protected Client _newClient(String urlinfo) throws LocatorException {
try {
String[] info = Split.split('/', urlinfo);
Client c = new Client(new URL(JscepCA.CA_PREFIX + info[0] + JscepCA.CA_POSTFIX),
new CertificateVerifier() {
@Override
public boolean verify(X509Certificate cert) {
//TODO checkIssuer
return true;
}
}
);
// Map URL to Client, because Client doesn't expose Connection
mxcwi_c.put(c,mxcwi_s.get(urlinfo));
return c;
} catch (MalformedURLException e) {
throw new LocatorException(e);
}
}
@Override
protected Client _invalidate(Client client) {
return null;
}
@Override
protected void _destroy(Client client) {
mxcwi_c.remove(client);
}
}
}
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