org.apache.tomcat.util.net.SSLSupport Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.tomcat.util.net;
import java.io.IOException;
/**
* Defines an interface to interact with SSL sessions.
*/
public interface SSLSupport {
/**
* The Request attribute key for the cipher suite.
*/
public static final String CIPHER_SUITE_KEY =
"javax.servlet.request.cipher_suite";
/**
* The Request attribute key for the key size.
*/
public static final String KEY_SIZE_KEY = "javax.servlet.request.key_size";
/**
* The Request attribute key for the client certificate chain.
*/
public static final String CERTIFICATE_KEY =
"javax.servlet.request.X509Certificate";
/**
* The Request attribute key for the session id.
* This one is a Tomcat extension to the Servlet spec.
*/
public static final String SESSION_ID_KEY =
"javax.servlet.request.ssl_session_id";
/**
* The request attribute key for the session manager.
* This one is a Tomcat extension to the Servlet spec.
*/
public static final String SESSION_MGR =
"javax.servlet.request.ssl_session_mgr";
/**
* The request attribute key under which the String indicating the protocol
* that created the SSL socket is recorded - e.g. TLSv1 or TLSv1.2 etc.
*/
public static final String PROTOCOL_VERSION_KEY =
"org.apache.tomcat.util.net.secure_protocol_version";
/**
* A mapping table to determine the number of effective bits in the key
* when using a cipher suite containing the specified cipher name. The
* underlying data came from the TLS Specification (RFC 2246), Appendix C.
*/
static final CipherData ciphers[] = {
new CipherData("_WITH_NULL_", 0),
new CipherData("_WITH_IDEA_CBC_", 128),
new CipherData("_WITH_RC2_CBC_40_", 40),
new CipherData("_WITH_RC4_40_", 40),
new CipherData("_WITH_RC4_128_", 128),
new CipherData("_WITH_DES40_CBC_", 40),
new CipherData("_WITH_DES_CBC_", 56),
new CipherData("_WITH_3DES_EDE_CBC_", 168),
new CipherData("_WITH_AES_128_CBC_", 128),
new CipherData("_WITH_AES_256_CBC_", 256)
};
/**
* The cipher suite being used on this connection.
*/
public String getCipherSuite() throws IOException;
/**
* The client certificate chain (if any).
*/
public Object[] getPeerCertificateChain()
throws IOException;
/**
* The client certificate chain (if any).
* @param force If true, then re-negotiate the
* connection if necessary.
*/
public Object[] getPeerCertificateChain(boolean force)
throws IOException;
/**
* Get the keysize.
*
* What we're supposed to put here is ill-defined by the
* Servlet spec (S 4.7 again). There are at least 4 potential
* values that might go here:
*
* (a) The size of the encryption key
* (b) The size of the MAC key
* (c) The size of the key-exchange key
* (d) The size of the signature key used by the server
*
* Unfortunately, all of these values are nonsensical.
**/
public Integer getKeySize()
throws IOException;
/**
* The current session Id.
*/
public String getSessionId()
throws IOException;
/**
* Simple data class that represents the cipher being used, along with the
* corresponding effective key size. The specified phrase must appear in the
* name of the cipher suite to be recognized.
*/
final class CipherData {
public String phrase = null;
public int keySize = 0;
public CipherData(String phrase, int keySize) {
this.phrase = phrase;
this.keySize = keySize;
}
}
/**
* @return the protocol String indicating how the SSL socket was created
* e.g. TLSv1 or TLSv1.2 etc.
*/
public String getProtocol() throws IOException;
}