001    /**
002     *   GRANITE DATA SERVICES
003     *   Copyright (C) 2006-2013 GRANITE DATA SERVICES S.A.S.
004     *
005     *   This file is part of Granite Data Services.
006     *
007     *   Granite Data Services is free software; you can redistribute it and/or modify
008     *   it under the terms of the GNU Library General Public License as published by
009     *   the Free Software Foundation; either version 2 of the License, or (at your
010     *   option) any later version.
011     *
012     *   Granite Data Services is distributed in the hope that it will be useful, but
013     *   WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
014     *   FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License
015     *   for more details.
016     *
017     *   You should have received a copy of the GNU Library General Public License
018     *   along with this library; if not, see <http://www.gnu.org/licenses/>.
019     */
020    package org.granite.client.messaging.channel;
021    
022    import java.io.UnsupportedEncodingException;
023    import java.nio.charset.Charset;
024    
025    import org.granite.util.Base64;
026    
027    /**
028     * @author Franck WOLFF
029     */
030    public final class UsernamePasswordCredentials implements Credentials {
031    
032            private final String username;
033            private final String password;
034            private final Charset charset;
035    
036            public UsernamePasswordCredentials(String username, String password) {
037                    this(username, password, null);
038            }
039    
040            public UsernamePasswordCredentials(String username, String password, Charset charset) {
041                    this.username = username;
042                    this.password = password;
043                    this.charset = (charset != null ? charset : Charset.defaultCharset());
044            }
045    
046            public String getUsername() {
047                    return username;
048            }
049    
050            public String getPassword() {
051                    return password;
052            }
053    
054            public Charset getCharset() {
055                    return charset;
056            }
057            
058            public String encodeBase64() throws UnsupportedEncodingException {
059                    StringBuilder sb = new StringBuilder();
060                    if (username != null) {
061                            if (username.indexOf(':') != -1)
062                                    throw new UnsupportedEncodingException("Username cannot contain ':' characters: " + username);
063                            sb.append(username);
064                    }
065                    sb.append(':');
066                    if (username != null)
067                            sb.append(password);
068                    return Base64.encodeToString(sb.toString().getBytes(charset.name()), false);
069            }
070    
071            @Override
072            public String toString() {
073                    return getClass().getName() + " {username=***, password=***, charset=" + charset + "}";
074            }
075    }