svn commit: r963810 - /directory/apacheds/trunk/core/src/main/java/org/apache/directory/server/core/authn/PasswordHistory.java

[ka...@apache.org]

Author: kayyagari
Date: Tue Jul 13 18:40:03 2010
New Revision: 963810

URL: http://svn.apache.org/viewvc?rev=963810&view=rev
Log:
o a class to hold the data of historical passwords of a entry

Added:
    directory/apacheds/trunk/core/src/main/java/org/apache/directory/server/core/authn/PasswordHistory.java

Added: directory/apacheds/trunk/core/src/main/java/org/apache/directory/server/core/authn/PasswordHistory.java
URL: http://svn.apache.org/viewvc/directory/apacheds/trunk/core/src/main/java/org/apache/directory/server/core/authn/PasswordHistory.java?rev=963810&view=auto
==============================================================================
--- directory/apacheds/trunk/core/src/main/java/org/apache/directory/server/core/authn/PasswordHistory.java (added)
+++ directory/apacheds/trunk/core/src/main/java/org/apache/directory/server/core/authn/PasswordHistory.java Tue Jul 13 18:40:03 2010
@@ -0,0 +1,164 @@
+/*
+ *   Licensed to the Apache Software Foundation (ASF) under one
+ *   or more contributor license agreements.  See the NOTICE file
+ *   distributed with this work for additional information
+ *   regarding copyright ownership.  The ASF licenses this file
+ *   to you 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.
+ *
+ */
+
+package org.apache.directory.server.core.authn;
+
+
+import org.apache.directory.shared.ldap.constants.SchemaConstants;
+import org.apache.directory.shared.ldap.util.Base64;
+import org.apache.directory.shared.ldap.util.DateUtils;
+import org.apache.directory.shared.ldap.util.StringTools;
+
+
+/**
+ * A class to hold the data of historical passwords of a entry.
+ *
+ * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
+ * @version $Rev$, $Date$
+ */
+public class PasswordHistory implements Comparable<PasswordHistory>
+{
+    /** time when password was last changed */
+    private String time;
+
+    /** the syntax OID that is to be used on the password data */
+    private String syntaxOID = SchemaConstants.OCTET_STRING_SYNTAX;
+
+    /** the length of the password data */
+    private int length;
+
+    /** password octet string */
+    private String data;
+
+    private static final char DELIMITER = '#';
+
+
+    public PasswordHistory( String pwdHistoryVal )
+    {
+        int pos = pwdHistoryVal.indexOf( DELIMITER );
+        time = pwdHistoryVal.substring( 0, pos );
+
+        pos++;
+        int nextPos = pwdHistoryVal.indexOf( DELIMITER, pos );
+        syntaxOID = pwdHistoryVal.substring( pos, nextPos );
+
+        nextPos++;
+        pos = pwdHistoryVal.indexOf( DELIMITER, nextPos );
+        length = Integer.parseInt( pwdHistoryVal.substring( nextPos, pos ) );
+
+        data = pwdHistoryVal.substring( pos + 1 );
+    }
+
+
+    public PasswordHistory( String time, byte[] password )
+    {
+        this.time = time;
+        this.data = String.valueOf( Base64.encode( password ) );
+        this.length = data.length();
+    }
+
+
+    public byte[] getHistoryValue()
+    {
+        StringBuilder sb = new StringBuilder();
+
+        sb.append( time ).append( DELIMITER );
+
+        sb.append( syntaxOID ).append( DELIMITER );
+
+        sb.append( length ).append( DELIMITER );
+
+        sb.append( data );
+
+        return StringTools.getBytesUtf8( sb.toString() );
+    }
+
+
+    public String getTime()
+    {
+        return time;
+    }
+
+
+    public String getSyntaxOID()
+    {
+        return syntaxOID;
+    }
+
+
+    public int getLength()
+    {
+        return length;
+    }
+
+
+    public byte[] getPassword()
+    {
+        return Base64.decode( data.toCharArray() );
+    }
+
+
+    public int compareTo( PasswordHistory o )
+    {
+        return o.getTime().compareTo( time );
+    }
+
+
+    @Override
+    public boolean equals( Object o )
+    {
+        if ( !( o instanceof PasswordHistory ) )
+        {
+            return false;
+        }
+
+        PasswordHistory other = ( PasswordHistory ) o;
+
+        return this.getTime().equals( other.getTime() );
+    }
+
+
+    @Override
+    public int hashCode()
+    {
+        final int prime = 31;
+        int result = 1;
+        result = prime * result + ( ( data == null ) ? 0 : data.hashCode() );
+        result = prime * result + length;
+        result = prime * result + ( ( syntaxOID == null ) ? 0 : syntaxOID.hashCode() );
+        result = prime * result + ( ( time == null ) ? 0 : time.hashCode() );
+        return result;
+    }
+
+
+    @Override
+    public String toString()
+    {
+        return "PasswordHistory [time=" + time + ", syntaxOID=" + syntaxOID + ", length=" + length + ", data=" + data
+            + "]";
+    }
+    
+    public static void main( String[] args )
+    {
+        byte[] pwdhBytes = new PasswordHistory( DateUtils.getGeneralizedTime(), "secret".getBytes() ).getHistoryValue();
+        PasswordHistory pwdHistory = new PasswordHistory( StringTools.utf8ToString( pwdhBytes ) );
+        System.out.println( pwdHistory );
+    }
+}