Source for gnu.java.security.x509.ext.CertificatePolicies

   1: /* CertificatePolicies.java -- certificate policy extension.
   2:    Copyright (C) 2004, 2006  Free Software Foundation, Inc.
   3: 
   4: This file is part of GNU Classpath.
   5: 
   6: GNU Classpath is free software; you can redistribute it and/or modify
   7: it under the terms of the GNU General Public License as published by
   8: the Free Software Foundation; either version 2, or (at your option)
   9: any later version.
  10: 
  11: GNU Classpath is distributed in the hope that it will be useful, but
  12: WITHOUT ANY WARRANTY; without even the implied warranty of
  13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14: General Public License for more details.
  15: 
  16: You should have received a copy of the GNU General Public License
  17: along with GNU Classpath; see the file COPYING.  If not, write to the
  18: Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  19: 02110-1301 USA.
  20: 
  21: Linking this library statically or dynamically with other modules is
  22: making a combined work based on this library.  Thus, the terms and
  23: conditions of the GNU General Public License cover the whole
  24: combination.
  25: 
  26: As a special exception, the copyright holders of this library give you
  27: permission to link this library with independent modules to produce an
  28: executable, regardless of the license terms of these independent
  29: modules, and to copy and distribute the resulting executable under
  30: terms of your choice, provided that you also meet, for each linked
  31: independent module, the terms and conditions of the license of that
  32: module.  An independent module is a module which is not derived from
  33: or based on this library.  If you modify this library, you may extend
  34: this exception to your version of the library, but you are not
  35: obligated to do so.  If you do not wish to do so, delete this
  36: exception statement from your version. */
  37: 
  38: 
  39: package gnu.java.security.x509.ext;
  40: 
  41: import gnu.java.security.OID;
  42: import gnu.java.security.der.DER;
  43: import gnu.java.security.der.DERReader;
  44: import gnu.java.security.der.DERValue;
  45: 
  46: import java.io.IOException;
  47: import java.security.cert.PolicyQualifierInfo;
  48: import java.util.ArrayList;
  49: import java.util.Collections;
  50: import java.util.HashMap;
  51: import java.util.Iterator;
  52: import java.util.LinkedList;
  53: import java.util.List;
  54: import java.util.Map;
  55: 
  56: public class CertificatePolicies extends Extension.Value
  57: {
  58: 
  59:   // Constants and fields.
  60:   // -------------------------------------------------------------------------
  61: 
  62:   public static final OID ID = new OID("2.5.29.32");
  63: 
  64:   private final List<OID> policies;
  65:   private final Map<OID, List<PolicyQualifierInfo>> policyQualifierInfos;
  66: 
  67:   // Constructor.
  68:   // -------------------------------------------------------------------------
  69: 
  70:   public CertificatePolicies(final byte[] encoded) throws IOException
  71:   {
  72:     super(encoded);
  73:     DERReader der = new DERReader(encoded);
  74:     DERValue pol = der.read();
  75:     if (!pol.isConstructed())
  76:       throw new IOException("malformed CertificatePolicies");
  77: 
  78:     int len = 0;
  79:     LinkedList<OID> policyList = new LinkedList<OID>();
  80:     HashMap<OID, List<PolicyQualifierInfo>> qualifierMap
  81:       = new HashMap<OID, List<PolicyQualifierInfo>>();
  82:     while (len < pol.getLength())
  83:       {
  84:         DERValue policyInfo = der.read();
  85:         if (!policyInfo.isConstructed())
  86:           throw new IOException("malformed PolicyInformation");
  87:         DERValue val = der.read();
  88:         if (val.getTag() != DER.OBJECT_IDENTIFIER)
  89:           throw new IOException("malformed CertPolicyId");
  90:         OID policyId = (OID) val.getValue();
  91:         policyList.add(policyId);
  92:         if (val.getEncodedLength() < policyInfo.getLength())
  93:           {
  94:             DERValue qual = der.read();
  95:             int len2 = 0;
  96:             LinkedList<PolicyQualifierInfo> quals = new LinkedList<PolicyQualifierInfo>();
  97:             while (len2 < qual.getLength())
  98:               {
  99:                 val = der.read();
 100:                 quals.add(new PolicyQualifierInfo(val.getEncoded()));
 101:                 der.skip(val.getLength());
 102:                 len2 += val.getEncodedLength();
 103:               }
 104:             qualifierMap.put(policyId, quals);
 105:           }
 106:         len += policyInfo.getEncodedLength();
 107:       }
 108: 
 109:     policies = Collections.unmodifiableList(policyList);
 110:     policyQualifierInfos = Collections.unmodifiableMap(qualifierMap);
 111:   }
 112: 
 113:   public CertificatePolicies (final List<OID> policies,
 114:                               final Map<OID, List<PolicyQualifierInfo>> policyQualifierInfos)
 115:   {
 116:     for (Iterator it = policies.iterator(); it.hasNext(); )
 117:       if (!(it.next() instanceof OID))
 118:         throw new IllegalArgumentException ("policies must be OIDs");
 119:     for (Iterator it = policyQualifierInfos.entrySet().iterator(); it.hasNext();)
 120:       {
 121:         Map.Entry e = (Map.Entry) it.next();
 122:         if (!(e.getKey() instanceof OID) || !policies.contains (e.getKey()))
 123:           throw new IllegalArgumentException
 124:             ("policyQualifierInfos keys must be OIDs");
 125:         if (!(e.getValue() instanceof List))
 126:           throw new IllegalArgumentException
 127:             ("policyQualifierInfos values must be Lists of PolicyQualifierInfos");
 128:         for (Iterator it2 = ((List) e.getValue()).iterator(); it.hasNext(); )
 129:           if (!(it2.next() instanceof PolicyQualifierInfo))
 130:             throw new IllegalArgumentException
 131:               ("policyQualifierInfos values must be Lists of PolicyQualifierInfos");
 132:       }
 133:     this.policies = Collections.unmodifiableList (new ArrayList<OID>(policies));
 134:     this.policyQualifierInfos = Collections.unmodifiableMap
 135:       (new HashMap<OID, List<PolicyQualifierInfo>>(policyQualifierInfos));
 136:   }
 137: 
 138:   // Instance methods.
 139:   // -------------------------------------------------------------------------
 140: 
 141:   public List<OID> getPolicies()
 142:   {
 143:     return policies;
 144:   }
 145: 
 146:   /**
 147:    * Returns the list of policy OIDs, formatted as dotted-decimal strings.
 148:    *
 149:    * @return
 150:    */
 151:   public List<String> getPolicyStrings()
 152:   {
 153:     List<String> l = new ArrayList<String>(policies.size());
 154:     for (OID oid : policies)
 155:       {
 156:         l.add(oid.toString());
 157:       }
 158:     return l;
 159:   }
 160: 
 161:   public List<PolicyQualifierInfo> getPolicyQualifierInfos(OID oid)
 162:   {
 163:     return policyQualifierInfos.get(oid);
 164:   }
 165: 
 166:   public byte[] getEncoded()
 167:   {
 168:     if (encoded == null)
 169:       {
 170:         List<DERValue> pol = new ArrayList<DERValue>(policies.size());
 171:         for (Iterator<OID> it = policies.iterator(); it.hasNext(); )
 172:           {
 173:             OID policy = it.next();
 174:             List<PolicyQualifierInfo> qualifiers = getPolicyQualifierInfos(policy);
 175:             List<DERValue> l = new ArrayList<DERValue>(qualifiers == null ? 1 : 2);
 176:             l.add(new DERValue(DER.OBJECT_IDENTIFIER, policy));
 177:             if (qualifiers != null)
 178:               {
 179:                 List<DERValue> ll = new ArrayList<DERValue>(qualifiers.size());
 180:                 for (Iterator<PolicyQualifierInfo> it2 = qualifiers.iterator(); it.hasNext(); )
 181:                   {
 182:                     PolicyQualifierInfo info = it2.next();
 183:                     try
 184:                       {
 185:                         ll.add(DERReader.read(info.getEncoded()));
 186:                       }
 187:                     catch (IOException ioe)
 188:                       {
 189:                       }
 190:                   }
 191:                 l.add(new DERValue(DER.CONSTRUCTED|DER.SEQUENCE, ll));
 192:               }
 193:             pol.add(new DERValue(DER.CONSTRUCTED|DER.SEQUENCE, l));
 194:           }
 195:         encoded = new DERValue(DER.CONSTRUCTED|DER.SEQUENCE, pol).getEncoded();
 196:       }
 197:     return (byte[]) encoded.clone();
 198:   }
 199: 
 200:   public String toString()
 201:   {
 202:     return CertificatePolicies.class.getName() + " [ policies=" + policies +
 203:       " policyQualifierInfos=" + policyQualifierInfos + " ]";
 204:   }
 205: }