BasicAuthentication.java

// ========================================================================
// Copyright (c) 2006-2009 Mort Bay Consulting Pty. Ltd.
// ------------------------------------------------------------------------
// All rights reserved. This program and the accompanying materials
// are made available under the terms of the Eclipse Public License v1.0
// and Apache License v2.0 which accompanies this distribution.
// The Eclipse Public License is available at 
// http://www.eclipse.org/legal/epl-v10.html
// The Apache License v2.0 is available at
// http://www.opensource.org/licenses/apache2.0.php
// You may elect to redistribute this code under either of these licenses. 
// ========================================================================

package org.eclipse.jetty.client.security;


import java.io.IOException;

import org.eclipse.jetty.client.HttpExchange;
import org.eclipse.jetty.http.HttpHeaders;
import org.eclipse.jetty.io.Buffer;
import org.eclipse.jetty.io.ByteArrayBuffer;
import org.eclipse.jetty.util.B64Code;
import org.eclipse.jetty.util.StringUtil;

/**
 * Sets authentication headers for BASIC authentication challenges
 * 
 * 
 */
public class BasicAuthentication implements Authentication
{
    private Buffer _authorization;
    
    public BasicAuthentication(Realm realm) throws IOException
    {
        String authenticationString = "Basic " + B64Code.encode( realm.getPrincipal() + ":" + realm.getCredentials(), StringUtil.__ISO_8859_1);
        _authorization= new ByteArrayBuffer(authenticationString);
    }
    
    /**
     * BASIC authentication is of the form
     * 
     * encoded credentials are of the form: username:password
     * 
     * 
     */
    public void setCredentials( HttpExchange exchange ) throws IOException
    {
        exchange.setRequestHeader( HttpHeaders.AUTHORIZATION_BUFFER, _authorization);
    }
}