1 files changed, 221 insertions, 0 deletions
diff --git a/pki/base/common/src/com/netscape/cms/policy/constraints/KeyAlgorithmConstraints.java b/pki/base/common/src/com/netscape/cms/policy/constraints/KeyAlgorithmConstraints.java
new file mode 100644
index 000000000..181752b01
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+++ b/pki/base/common/src/com/netscape/cms/policy/constraints/KeyAlgorithmConstraints.java
@@ -0,0 +1,221 @@
+// --- 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.constraints;
+
+
+import java.util.*;
+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.apps.CMS;
+import com.netscape.certsrv.common.*;
+import netscape.security.x509.*;
+import com.netscape.cms.policy.APolicyRule;
+
+
+/**
+ * KeyAlgorithmConstraints enforces a constraint that the RA or a CA
+ * honor only the keys generated using one of the permitted algorithms
+ * such as RSA, DSA or DH.
+ * <P>
+ * <PRE>
+ * NOTE:  The Policy Framework has been replaced by the Profile Framework.
+ * </PRE>
+ * <P>
+ *
+ * @deprecated
+ * @version $Revision$, $Date$
+ */
+public class KeyAlgorithmConstraints extends APolicyRule
+    implements IEnrollmentPolicy, IExtendedPluginInfo {
+    private Vector mAlgorithms;
+    private final static String DEF_KEY_ALGORITHM = "RSA,DSA";
+    private final static String PROP_ALGORITHMS = "algorithms";
+    private final static String[] supportedAlgorithms =
+        {"RSA", "DSA", "DH" };
+
+    private final static Vector defConfParams = new Vector();
+
+    static {
+        defConfParams.addElement(PROP_ALGORITHMS + "=" + 
+            DEF_KEY_ALGORITHM);
+    }
+
+    public String[] getExtendedPluginInfo(Locale locale) {
+        String params[] = {
+                "algorithms;choice(RSA\\,DSA,RSA,DSA);Certificate's key can be one of these algorithms",
+                IExtendedPluginInfo.HELP_TOKEN +
+                ";configuration-policyrules-keyalgorithmconstraints",
+                IExtendedPluginInfo.HELP_TEXT +
+                ";Rejects the request if the key in the certificate is " +
+                "not of the type specified"
+            };
+
+        return params;
+    }
+
+    public KeyAlgorithmConstraints() {
+        NAME = "KeyAlgorithmConstraints";
+        DESC = "Enforces Key Algorithm Constraints.";
+    }
+
+    /**
+     * Initializes this policy rule.
+     * <P>
+     *
+     * The entries probably are of the form
+     *      ra.Policy.rule.<ruleName>.implName=KeyAlgorithmConstraints
+     *      ra.Policy.rule.<ruleName>.algorithms=RSA,DSA
+     *      ra.Policy.rule.<ruleName>.enable=true
+     *      ra.Policy.rule.<ruleName>.predicate=ou==Sales
+     *
+     * @param config	The config store reference
+     */
+    public void init(ISubsystem owner, IConfigStore config)
+        throws EPolicyException {
+
+        mAlgorithms = new Vector();
+
+        if (config == null || config.size() == 0) {
+            mAlgorithms.addElement(DEF_KEY_ALGORITHM);
+            return;
+        }
+
+        // Get Algorithm names
+        String algNames = null;
+
+        try {
+            algNames = config.getString(PROP_ALGORITHMS, null);
+        } catch (Exception e) {
+            String[] params = {getInstanceName(), e.toString()};
+
+            throw new EPolicyException(
+                    CMS.getUserMessage("CMS_POLICY_INVALID_POLICY_CONFIG", params));
+        }
+
+        if (algNames == null) {
+            mAlgorithms.addElement(DEF_KEY_ALGORITHM);
+            return;
+        }
+        StringTokenizer tok = new StringTokenizer(algNames, ",");
+
+        while (tok.hasMoreTokens()) {
+            String alg = tok.nextToken().trim().toUpperCase();
+
+            if (alg.length() == 0)
+                continue;
+            mAlgorithms.addElement(alg);
+        }
+
+        // Check if configured algorithms are supported.
+        for (Enumeration e = mAlgorithms.elements();
+            e.hasMoreElements();) {
+            int i;
+            String configuredAlg = (String) e.nextElement();
+				
+            // See if it is a supported algorithm.
+            for (i = 0; i < supportedAlgorithms.length; i++) {
+                if (configuredAlg.equals(supportedAlgorithms[i]))
+                    break;
+            }
+
+            // Did we not find it?
+            if (i == supportedAlgorithms.length)
+                throw new EPolicyException(
+                        CMS.getUserMessage("CMS_POLICY_UNSUPPORTED_KEY_ALG",
+                            getInstanceName(), configuredAlg));
+        }
+    }
+
+    /**
+     * Applies the policy on the given Request.
+     * <P>
+     *
+     * @param req	The request on which to apply policy.
+     * @return The policy result object.
+     */
+    public PolicyResult apply(IRequest req) {
+
+        PolicyResult result = PolicyResult.ACCEPTED;
+
+        try {
+            // Get the certificate info from the request
+            // X509CertInfo certInfo[] = (X509CertInfo[])
+            //    req.get(IRequest.CERT_INFO);
+            X509CertInfo certInfo[] = req.getExtDataInCertInfoArray(IRequest.CERT_INFO);
+
+            // We need to have a certificate info set
+            if (certInfo == null) {
+                setError(req, CMS.getUserMessage("CMS_POLICY_NO_CERT_INFO",
+                        getInstanceName()), "");
+                return PolicyResult.REJECTED;
+            }
+
+            // Else check if the key algorithm is supported.
+            for (int i = 0; i < certInfo.length; i++) {
+                CertificateX509Key certKey = (CertificateX509Key)
+                    certInfo[i].get(X509CertInfo.KEY);
+                X509Key key = (X509Key) certKey.get(CertificateX509Key.KEY);
+                String alg = key.getAlgorithmId().getName().toUpperCase();
+
+                if (!mAlgorithms.contains(alg)) {
+                    setError(req, CMS.getUserMessage("CMS_POLICY_KEY_ALG_VIOLATION", 
+                            getInstanceName(), alg), "");
+                    result = PolicyResult.REJECTED;
+                }
+            }
+        } catch (Exception e) {
+            String params[] = {getInstanceName(), e.toString()};
+
+            setError(req, CMS.getUserMessage("CMS_POLICY_UNEXPECTED_POLICY_ERROR",
+                    params), "");
+            result = PolicyResult.REJECTED;
+        }
+        return result;
+    }
+
+    /**
+     * Return configured parameters for a policy rule instance.
+     *
+     * @return nvPairs A Vector of name/value pairs.
+     */
+    public Vector getInstanceParams() { 
+        Vector v = new Vector();
+        StringBuffer sb = new StringBuffer();
+
+        for (Enumeration e = mAlgorithms.elements(); e.hasMoreElements();) {
+            sb.append((String) e.nextElement());
+            sb.append(",");
+        }
+        if (sb.length() > 0)
+            sb.setLength(sb.length() - 1);
+        v.addElement(PROP_ALGORITHMS + "=" + sb.toString());
+        return v;
+    }
+		
+    /**
+     * Return default parameters for a policy implementation.
+     *
+     * @return nvPairs A Vector of name/value pairs.
+     */
+    public Vector getDefaultParams() {
+        return defConfParams;
+    }
+}
+