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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License. You can obtain
 * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
 * or glassfish/bootstrap/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
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 * When distributing the software, include this License Header Notice in each
 * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
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package com.sun.enterprise.security.auth.realm.ldap;

import com.sun.enterprise.security.SSLUtils;
import com.sun.enterprise.util.i18n.StringManager;
import com.sun.logging.LogDomains;
import java.io.IOException;
import java.net.Socket;
import java.net.UnknownHostException;
import java.security.GeneralSecurityException;
import java.security.KeyManagementException;
import java.security.NoSuchAlgorithmException;
import java.security.cert.X509Certificate;
import java.util.Comparator;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.net.SocketFactory;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSocketFactory;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;
import java.net.InetAddress;


/**
 * Custom socket factory for ldaps (SSL).
 *
 * The comparator only works in JDK 1.6 onwards. Due to a bug in JDK 1.6
 * compare method invocation fails with a classcast exception. The caller is 
 * trying to pass java.lang.String when it should have passed 
 * javax.net.SocketFactory
 * 
 * @see com.sun.enterprise.security.auth.realm.ldap.LDAPRealm
 *
 */
public class CustomSocketFactory extends SocketFactory implements Comparator<SocketFactory>{
    private static SocketFactory socketFactory = null;
    public static final String SSL = "SSL";
    protected static final Logger _logger =
        LogDomains.getLogger(LogDomains.SECURITY_LOGGER);
    protected static final StringManager sm =
        StringManager.getManager("com.sun.enterprise.security.auth.realm");
    
    static {
        SSLContext sc = null;
        try {
            sc = SSLContext.getInstance(SSL);
            sc.init(SSLUtils.getKeyManagers(), SSLUtils.getTrustManagers(), new java.security.SecureRandom());
        } catch (Exception ex) {
            _logger.log(Level.WARNING, "security.exception", ex);
        }        
        socketFactory = sc.getSocketFactory();
    }
    
    /**
     * @see javax.net.SocketFactory#getDefault()
     */
    public static SocketFactory getDefault() {
        return new CustomSocketFactory();
    }
    
    
    /**
     * @see javax.net.SocketFactory#createSocket(java.lang.String, int)
     */
    public Socket createSocket(String arg0, int arg1) throws IOException,
            UnknownHostException {
        return socketFactory.createSocket(arg0, arg1);
    }
    
    /**
     * @see javax.net.SocketFactory#createSocket(java.net.InetAddress, int)
     */
    public Socket createSocket(InetAddress arg0, int arg1) throws IOException {
        return socketFactory.createSocket(arg0, arg1);
    }
    
    /**
     * @see javax.net.SocketFactory#createSocket(java.lang.String, int,
     *      java.net.InetAddress, int)
     */
    public Socket createSocket(String arg0, int arg1, InetAddress arg2, int arg3)
    throws IOException, UnknownHostException {
        return socketFactory.createSocket(arg0, arg1, arg2, arg3);
    }
    
    /**
     * @see javax.net.SocketFactory#createSocket(java.net.InetAddress, int,
     *      java.net.InetAddress, int)
     */
    public Socket createSocket(InetAddress arg0, int arg1, InetAddress arg2,
            int arg3) throws IOException {
        return socketFactory.createSocket(arg0, arg1, arg2, arg3);
    }

    public int compare(SocketFactory s1, SocketFactory s2) {
        return s1.getClass().toString().compareTo(s2.getClass().toString());
    }
    
    
}