1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18 package org.apache.tomcat.util.net;
19
20 import java.net.Socket;
21 import javax.net.ssl.SSLSession;
22
23 /* SSLImplementation:
24
25 Abstract factory and base class for all SSL implementations.
26
27 @author EKR
28 */
29 abstract public class SSLImplementation {
30 private static org.apache.juli.logging.Log logger =
31 org.apache.juli.logging.LogFactory.getLog(SSLImplementation.class);
32
33 // The default implementations in our search path
34 private static final String PureTLSImplementationClass=
35 "org.apache.tomcat.util.net.puretls.PureTLSImplementation";
36 private static final String JSSEImplementationClass=
37 "org.apache.tomcat.util.net.jsse.JSSEImplementation";
38
39 private static final String[] implementations=
40 {
41 PureTLSImplementationClass,
42 JSSEImplementationClass
43 };
44
45 public static SSLImplementation getInstance() throws ClassNotFoundException
46 {
47 for(int i=0;i<implementations.length;i++){
48 try {
49 SSLImplementation impl=
50 getInstance(implementations[i]);
51 return impl;
52 } catch (Exception e) {
53 if(logger.isTraceEnabled())
54 logger.trace("Error creating " + implementations[i],e);
55 }
56 }
57
58 // If we can't instantiate any of these
59 throw new ClassNotFoundException("Can't find any SSL implementation");
60 }
61
62 public static SSLImplementation getInstance(String className)
63 throws ClassNotFoundException
64 {
65 if(className==null) return getInstance();
66
67 try {
68 // Workaround for the J2SE 1.4.x classloading problem (under Solaris).
69 // Class.forName(..) fails without creating class using new.
70 // This is an ugly workaround.
71 if( JSSEImplementationClass.equals(className) ) {
72 return new org.apache.tomcat.util.net.jsse.JSSEImplementation();
73 }
74 Class clazz=Class.forName(className);
75 return (SSLImplementation)clazz.newInstance();
76 } catch (Exception e){
77 if(logger.isDebugEnabled())
78 logger.debug("Error loading SSL Implementation "
79 +className, e);
80 throw new ClassNotFoundException("Error loading SSL Implementation "
81 +className+ " :" +e.toString());
82 }
83 }
84
85 abstract public String getImplementationName();
86 abstract public ServerSocketFactory getServerSocketFactory();
87 abstract public SSLSupport getSSLSupport(Socket sock);
88 abstract public SSLSupport getSSLSupport(SSLSession session);
89 }
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