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.conscrypt; 19 20 import java.security.Principal; 21 import java.security.cert.Certificate; 22 import java.util.HashMap; 23 import javax.net.ssl.*; 24 25 /** 26 * This is returned in the place of a {@link SSLSession} when no TLS connection could be negotiated, 27 * but one was requested from a method that can't throw an exception such as {@link 28 * SSLSocket#getSession()} before {@link SSLSocket#startHandshake()} is called. 29 * 30 * @hide 31 */ 32 @Internal 33 public final class SSLNullSession implements SSLSession, Cloneable { 34 35 /* 36 * Holds default instances so class preloading doesn't create an instance of 37 * it. 38 */ 39 private static class DefaultHolder { 40 public static final SSLNullSession NULL_SESSION = new SSLNullSession(); 41 } 42 43 private final HashMap<String, Object> values = new HashMap<String, Object>(); 44 45 long creationTime; 46 long lastAccessedTime; 47 getNullSession()48 public static SSLSession getNullSession() { 49 return DefaultHolder.NULL_SESSION; 50 } 51 SSLNullSession()52 public SSLNullSession() { 53 creationTime = System.currentTimeMillis(); 54 lastAccessedTime = creationTime; 55 } 56 57 @Override getApplicationBufferSize()58 public int getApplicationBufferSize() { 59 return NativeConstants.SSL3_RT_MAX_PLAIN_LENGTH; 60 } 61 62 @Override getCipherSuite()63 public String getCipherSuite() { 64 return "SSL_NULL_WITH_NULL_NULL"; 65 } 66 67 @Override getCreationTime()68 public long getCreationTime() { 69 return creationTime; 70 } 71 72 @Override getId()73 public byte[] getId() { 74 return EmptyArray.BYTE; 75 } 76 77 @Override getLastAccessedTime()78 public long getLastAccessedTime() { 79 return lastAccessedTime; 80 } 81 82 @Override getLocalCertificates()83 public Certificate[] getLocalCertificates() { 84 return null; 85 } 86 87 @Override getLocalPrincipal()88 public Principal getLocalPrincipal() { 89 return null; 90 } 91 92 @Override getPacketBufferSize()93 public int getPacketBufferSize() { 94 return NativeConstants.SSL3_RT_MAX_PACKET_SIZE; 95 } 96 97 @Override getPeerCertificateChain()98 public javax.security.cert.X509Certificate[] getPeerCertificateChain() 99 throws SSLPeerUnverifiedException { 100 throw new SSLPeerUnverifiedException("No peer certificate"); 101 } 102 103 @Override getPeerCertificates()104 public Certificate[] getPeerCertificates() throws SSLPeerUnverifiedException { 105 throw new SSLPeerUnverifiedException("No peer certificate"); 106 } 107 108 @Override getPeerHost()109 public String getPeerHost() { 110 return null; 111 } 112 113 @Override getPeerPort()114 public int getPeerPort() { 115 return -1; 116 } 117 118 @Override getPeerPrincipal()119 public Principal getPeerPrincipal() throws SSLPeerUnverifiedException { 120 throw new SSLPeerUnverifiedException("No peer certificate"); 121 } 122 123 @Override getProtocol()124 public String getProtocol() { 125 return "NONE"; 126 } 127 128 @Override getSessionContext()129 public SSLSessionContext getSessionContext() { 130 return null; 131 } 132 133 @Override getValue(String name)134 public Object getValue(String name) { 135 if (name == null) { 136 throw new IllegalArgumentException("name == null"); 137 } 138 return values.get(name); 139 } 140 141 @Override getValueNames()142 public String[] getValueNames() { 143 return values.keySet().toArray(new String[values.size()]); 144 } 145 146 @Override invalidate()147 public void invalidate() { 148 } 149 150 @Override isValid()151 public boolean isValid() { 152 return false; 153 } 154 155 @Override putValue(String name, Object value)156 public void putValue(String name, Object value) { 157 if (name == null || value == null) { 158 throw new IllegalArgumentException("name == null || value == null"); 159 } 160 Object old = values.put(name, value); 161 if (value instanceof SSLSessionBindingListener) { 162 ((SSLSessionBindingListener) value).valueBound(new SSLSessionBindingEvent(this, name)); 163 } 164 if (old instanceof SSLSessionBindingListener) { 165 ((SSLSessionBindingListener) old).valueUnbound(new SSLSessionBindingEvent(this, name)); 166 } 167 168 } 169 170 @Override removeValue(String name)171 public void removeValue(String name) { 172 if (name == null) { 173 throw new IllegalArgumentException("name == null"); 174 } 175 Object old = values.remove(name); 176 if (old instanceof SSLSessionBindingListener) { 177 SSLSessionBindingListener listener = (SSLSessionBindingListener) old; 178 listener.valueUnbound(new SSLSessionBindingEvent(this, name)); 179 } 180 } 181 } 182