001    /*
002     *  Licensed to the Apache Software Foundation (ASF) under one
003     *  or more contributor license agreements.  See the NOTICE file
004     *  distributed with this work for additional information
005     *  regarding copyright ownership.  The ASF licenses this file
006     *  to you under the Apache License, Version 2.0 (the
007     *  "License"); you may not use this file except in compliance
008     *  with the License.  You may obtain a copy of the License at
009     *  
010     *    http://www.apache.org/licenses/LICENSE-2.0
011     *  
012     *  Unless required by applicable law or agreed to in writing,
013     *  software distributed under the License is distributed on an
014     *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015     *  KIND, either express or implied.  See the License for the
016     *  specific language governing permissions and limitations
017     *  under the License. 
018     *  
019     */
020    package org.apache.directory.shared.ldap.constants;
021    
022    /**
023     * An enum to store all the security constants used in the server
024     *
025     * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
026     * @version $Rev:$
027     */
028    public enum LdapSecurityConstants
029    {
030        HASH_METHOD_SHA( "sha" ),
031    
032        HASH_METHOD_SSHA( "ssha" ),
033    
034        HASH_METHOD_MD5( "md5" ),
035    
036        HASH_METHOD_SMD5( "smd5" ),
037    
038        HASH_METHOD_CRYPT( "crypt" ),
039    
040        HASH_METHOD_SHA256( "sha-256" );
041        
042        private String name;
043        
044        /**
045         * Creates a new instance of LdapSecurityConstants.
046         */
047        private LdapSecurityConstants( String name )
048        {
049            this.name = name;
050        }
051    
052        /**
053         * Return the name associated with the constant.
054         */
055        public String getName()
056        {
057            return name;
058        }
059        
060        
061        /**
062         * Get the associated constant from a string
063         *
064         * @param name The algorithm's name
065         * @return The associated constant
066         */
067        public static LdapSecurityConstants getAlgorithm( String name )
068        {
069            String algorithm = ( name == null ? "" : name.toLowerCase() );
070            
071            if ( HASH_METHOD_SHA.getName().equalsIgnoreCase( algorithm ) )
072            {
073                return HASH_METHOD_SHA;
074            }
075    
076            if ( HASH_METHOD_SSHA.getName().equalsIgnoreCase( algorithm ) )
077            {
078                return HASH_METHOD_SSHA;
079            }
080    
081            if ( HASH_METHOD_MD5.getName().equalsIgnoreCase( algorithm ) )
082            {
083                return HASH_METHOD_MD5;
084            }
085    
086            if ( HASH_METHOD_SMD5.getName().equalsIgnoreCase( algorithm ) )
087            {
088                return HASH_METHOD_SMD5;
089            }
090            
091            if ( HASH_METHOD_CRYPT.getName().equalsIgnoreCase( algorithm ) )
092            {
093                return HASH_METHOD_CRYPT;
094            }
095            
096            if ( HASH_METHOD_SHA256.getName().equalsIgnoreCase( algorithm ) )
097            {
098                return HASH_METHOD_SHA256;
099            }
100            
101            return null;
102        }
103    }