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/*
* 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;
import java.security.cert.X509Certificate;
/**
* 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";
/**
* The request attribute key under which the String indicating the ciphers
* requested by the client are recorded.
*/
public static final String REQUESTED_CIPHERS_KEY =
"org.apache.tomcat.util.net.secure_requested_ciphers";
/**
* The request attribute key under which the String indicating the protocols
* requested by the client are recorded.
*/
public static final String REQUESTED_PROTOCOL_VERSIONS_KEY =
"org.apache.tomcat.util.net.secure_requested_protocol_versions";
/**
* The cipher suite being used on this connection.
*
* @return The name of the cipher suite as returned by the SSL/TLS
* implementation
*
* @throws IOException If an error occurs trying to obtain the cipher suite
*/
public String getCipherSuite() throws IOException;
/**
* The client certificate chain (if any).
*
* @return The certificate chain presented by the client with the peer's
* certificate first, followed by those of any certificate
* authorities
*
* @throws IOException If an error occurs trying to obtain the certificate
* chain
*/
public X509Certificate[] getPeerCertificateChain() throws IOException;
/**
* The server certificate chain (if any) that were sent to the peer.
*
* @return The certificate chain sent with the server
* certificate first, followed by those of any certificate
* authorities
*/
public default X509Certificate[] getLocalCertificateChain() {
return null;
}
/**
* 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.
*
* @return The effective key size for the current cipher suite
*
* @throws IOException If an error occurs trying to obtain the key size
*/
public Integer getKeySize() throws IOException;
/**
* The current session Id.
*
* @return The current SSL/TLS session ID
*
* @throws IOException If an error occurs trying to obtain the session ID
*/
public String getSessionId() throws IOException;
/**
* @return the protocol String indicating how the SSL socket was created
* e.g. TLSv1 or TLSv1.2 etc.
*
* @throws IOException If an error occurs trying to obtain the protocol
* information from the socket
*/
public String getProtocol() throws IOException;
/**
*
* @return the list of SSL/TLS protocol versions requested by the client
*
* @throws IOException If an error occurs trying to obtain the client
* requested protocol information from the socket
*/
public String getRequestedProtocols() throws IOException;
/**
*
* @return the list of SSL/TLS ciphers requested by the client
*
* @throws IOException If an error occurs trying to obtain the client
* request cipher information from the socket
*/
public String getRequestedCiphers() throws IOException;
}
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