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// --- BEGIN COPYRIGHT BLOCK ---
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; version 2 of the License.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program; if not, write to the Free Software Foundation, Inc.,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//
// (C) 2007 Red Hat, Inc.
// All rights reserved.
// --- END COPYRIGHT BLOCK ---
package com.netscape.cms.policy.extensions;
import java.util.*;
import java.io.*;
import java.net.*;
import java.security.cert.*;
import com.netscape.certsrv.apps.*;
import com.netscape.certsrv.request.IRequest;
import com.netscape.certsrv.request.PolicyResult;
import com.netscape.certsrv.policy.*;
import com.netscape.certsrv.base.*;
import com.netscape.certsrv.authentication.*;
import com.netscape.certsrv.common.*;
import com.netscape.certsrv.authority.*;
import com.netscape.certsrv.logging.ILogger;
import netscape.security.x509.*;
import netscape.security.util.*;
import netscape.ldap.*;
import com.netscape.certsrv.ra.*;
import com.netscape.certsrv.ca.*;
import java.util.StringTokenizer;
import netscape.security.util.DerValue;
import java.util.Enumeration;
import com.netscape.cms.policy.APolicyRule;
/**
* Issuer Alt Name Extension policy.
*
* This extension is used to associate Internet-style identities
* with the Certificate issuer.
*
* @version $Revision$, $Date$
*/
public class IssuerAltNameExt extends APolicyRule
implements IEnrollmentPolicy, IExtendedPluginInfo {
public static final String PROP_CRITICAL = "critical";
// PKIX specifies the that the extension SHOULD NOT be critical
public static final boolean DEFAULT_CRITICALITY = false;
private static Vector defaultParams = new Vector();
private static String[] mInfo = null;
static {
defaultParams.addElement(PROP_CRITICAL + "=" + DEFAULT_CRITICALITY);
CMS.getGeneralNamesConfigDefaultParams(null, true, defaultParams);
Vector info = new Vector();
info.addElement(PROP_CRITICAL + ";boolean;RFC 2459 recommendation: SHOULD NOT be marked critical.");
info.addElement(IExtendedPluginInfo.HELP_TOKEN +
";configuration-policyrules-issueraltname");
info.addElement(IExtendedPluginInfo.HELP_TEXT +
";This policy inserts the Issuer Alternative Name " +
"Extension into the certificate. See RFC 2459 (4.2.1.8). ");
CMS.getGeneralNamesConfigExtendedPluginInfo(null, true, info);
mInfo = new String[info.size()];
info.copyInto(mInfo);
}
private Vector mParams = new Vector();
private IConfigStore mConfig = null;
private boolean mCritical = DEFAULT_CRITICALITY;
private boolean mEnabled = false;
IGeneralNamesConfig mGNs = null;
IssuerAlternativeNameExtension mExtension = null;
/**
* Adds the issuer alternate name extension to all certs.
*/
public IssuerAltNameExt() {
NAME = "IssuerAltNameExt";
DESC = "Associate Internet-style Identities with Issuer";
}
/**
* Initializes this policy rule.
* @param config The config store reference
*/
public void init(ISubsystem owner, IConfigStore config)
throws EBaseException {
mConfig = config;
// get criticality
mCritical = mConfig.getBoolean(PROP_CRITICAL, DEFAULT_CRITICALITY);
// get enabled.
mEnabled = mConfig.getBoolean(
IPolicyProcessor.PROP_ENABLE, false);
// form general names.
mGNs = CMS.createGeneralNamesConfig(null, config, true, mEnabled);
// form extension
try {
if (mEnabled &&
mGNs.getGeneralNames() != null && !mGNs.getGeneralNames().isEmpty()) {
mExtension =
new IssuerAlternativeNameExtension(
Boolean.valueOf(mCritical), mGNs.getGeneralNames());
}
} catch (Exception e) {
throw new EBaseException(CMS.getUserMessage("CMS_BASE_INTERNAL_ERROR", e.toString()));
}
// init instance params
mParams.addElement(PROP_CRITICAL + "=" + mCritical);
mGNs.getInstanceParams(mParams);
return;
}
/**
* Adds a extension if none exists.
*
* @param req The request on which to apply policy.
* @return The policy result object.
*/
public PolicyResult apply(IRequest req) {
PolicyResult res = PolicyResult.ACCEPTED;
if (mEnabled == false || mExtension == null)
return res;
// get cert info.
X509CertInfo[] ci =
req.getExtDataInCertInfoArray(IRequest.CERT_INFO);
X509CertInfo certInfo = null;
if (ci == null || (certInfo = ci[0]) == null) {
setError(req, CMS.getUserMessage("CMS_POLICY_NO_CERT_INFO"), NAME);
return PolicyResult.REJECTED; // unrecoverable error.
}
for (int i = 0; i < ci.length; i++) {
PolicyResult certRes = applyCert(req, ci[i]);
if (certRes == PolicyResult.REJECTED)
return certRes;
}
return PolicyResult.ACCEPTED;
}
public PolicyResult applyCert(IRequest req, X509CertInfo certInfo) {
// get extension from cert info if any.
CertificateExtensions extensions = null;
try {
// get extension if any.
extensions = (CertificateExtensions)
certInfo.get(X509CertInfo.EXTENSIONS);
} catch (IOException e) {
// no extensions.
} catch (CertificateException e) {
// no extension.
}
if (extensions == null) {
extensions = new CertificateExtensions();
try {
certInfo.set(X509CertInfo.VERSION,
new CertificateVersion(CertificateVersion.V3));
certInfo.set(X509CertInfo.EXTENSIONS, extensions);
} catch (CertificateException e) {
// not possible
} catch (Exception e) {
}
} else {
// remove any previously computed version of the extension
try {
extensions.delete(IssuerAlternativeNameExtension.NAME);
} catch (IOException e) {
// this is the hack
// If name is not found, try deleting using the OID
try {
extensions.delete("2.5.29.18");
} catch (IOException ee) {
}
}
}
try {
extensions.set(IssuerAlternativeNameExtension.NAME, mExtension);
} catch (Exception e) {
if (e instanceof RuntimeException)
throw (RuntimeException) e;
log(ILogger.LL_FAILURE,
CMS.getLogMessage("CRL_CREATE_ISSUER_ALT_NAME_EXT", e.toString()));
setError(req, CMS.getUserMessage("CMS_POLICY_SUBJECT_KEY_ID_ERROR"), NAME);
return PolicyResult.REJECTED;
}
return PolicyResult.ACCEPTED;
}
/**
* Return configured parameters for a policy rule instance.
*
* @return Empty Vector since this policy has no configuration parameters.
* for this policy instance.
*/
public Vector getInstanceParams() {
return mParams;
}
/**
* Return default parameters for a policy implementation.
*
* @return Empty Vector since this policy implementation has no
* configuration parameters.
*/
public Vector getDefaultParams() {
return defaultParams;
}
public String[] getExtendedPluginInfo(Locale locale) {
return mInfo;
}
}
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