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package org.jooby.internal.ssl;
import java.io.File;
import java.io.IOException;
import java.security.InvalidAlgorithmParameterException;
import java.security.KeyException;
import java.security.KeyStore;
import java.security.KeyStoreException;
import java.security.NoSuchAlgorithmException;
import java.security.Security;
import java.security.UnrecoverableKeyException;
import java.security.cert.CertificateException;
import java.security.spec.InvalidKeySpecException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
/*
* Copyright 2014 The Netty Project
*
* The Netty Project 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.
*/
import javax.crypto.NoSuchPaddingException;
import javax.net.ssl.KeyManagerFactory;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLEngine;
import javax.net.ssl.SSLSessionContext;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* An {@link SslContext} which uses JDK's SSL/TLS implementation.
* Kindly Borrowed from Netty
*/
public abstract class JdkSslContext extends SslContext {
/** The logging system. */
private final static Logger logger = LoggerFactory.getLogger(JdkSslContext.class);
static final String PROTOCOL = "TLS";
static final String[] PROTOCOLS;
static final List DEFAULT_CIPHERS;
static final Set SUPPORTED_CIPHERS;
private static final char[] EMPTY_CHARS = new char[0];
static {
SSLContext context;
int i;
try {
context = SSLContext.getInstance(PROTOCOL);
context.init(null, null, null);
} catch (Exception e) {
throw new Error("failed to initialize the default SSL context", e);
}
SSLEngine engine = context.createSSLEngine();
// Choose the sensible default list of protocols.
final String[] supportedProtocols = engine.getSupportedProtocols();
Set supportedProtocolsSet = new HashSet(supportedProtocols.length);
for (i = 0; i < supportedProtocols.length; ++i) {
supportedProtocolsSet.add(supportedProtocols[i]);
}
List protocols = new ArrayList();
addIfSupported(
supportedProtocolsSet, protocols,
"TLSv1.2", "TLSv1.1", "TLSv1");
if (!protocols.isEmpty()) {
PROTOCOLS = protocols.toArray(new String[protocols.size()]);
} else {
PROTOCOLS = engine.getEnabledProtocols();
}
// Choose the sensible default list of cipher suites.
final String[] supportedCiphers = engine.getSupportedCipherSuites();
SUPPORTED_CIPHERS = new HashSet(supportedCiphers.length);
for (i = 0; i < supportedCiphers.length; ++i) {
SUPPORTED_CIPHERS.add(supportedCiphers[i]);
}
List ciphers = new ArrayList();
addIfSupported(
SUPPORTED_CIPHERS, ciphers,
// XXX: Make sure to sync this list with OpenSslEngineFactory.
// GCM (Galois/Counter Mode) requires JDK 8.
"TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256",
"TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA",
// AES256 requires JCE unlimited strength jurisdiction policy files.
"TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA",
// GCM (Galois/Counter Mode) requires JDK 8.
"TLS_RSA_WITH_AES_128_GCM_SHA256",
"TLS_RSA_WITH_AES_128_CBC_SHA",
// AES256 requires JCE unlimited strength jurisdiction policy files.
"TLS_RSA_WITH_AES_256_CBC_SHA",
"SSL_RSA_WITH_3DES_EDE_CBC_SHA");
if (ciphers.isEmpty()) {
// Use the default from JDK as fallback.
for (String cipher : engine.getEnabledCipherSuites()) {
if (cipher.contains("_RC4_")) {
continue;
}
ciphers.add(cipher);
}
}
DEFAULT_CIPHERS = Collections.unmodifiableList(ciphers);
if (logger.isDebugEnabled()) {
logger.debug("Default protocols (JDK): {} ", Arrays.asList(PROTOCOLS));
logger.debug("Default cipher suites (JDK): {}", DEFAULT_CIPHERS);
}
}
private static void addIfSupported(final Set supported, final List enabled,
final String... names) {
for (String n : names) {
if (supported.contains(n)) {
enabled.add(n);
}
}
}
/**
* Returns the JDK {@link SSLSessionContext} object held by this context.
*/
@Override
public final SSLSessionContext sessionContext() {
return context().getServerSessionContext();
}
@Override
public final long sessionCacheSize() {
return sessionContext().getSessionCacheSize();
}
@Override
public final long sessionTimeout() {
return sessionContext().getSessionTimeout();
}
/**
* Build a {@link KeyManagerFactory} based upon a key file, key file password, and a certificate
* chain.
*
* @param certChainFile a X.509 certificate chain file in PEM format
* @param keyFile a PKCS#8 private key file in PEM format
* @param keyPassword the password of the {@code keyFile}.
* {@code null} if it's not password-protected.
* @param kmf The existing {@link KeyManagerFactory} that will be used if not {@code null}
* @return A {@link KeyManagerFactory} based upon a key file, key file password, and a certificate
* chain.
*/
protected static KeyManagerFactory buildKeyManagerFactory(final File certChainFile,
final File keyFile, final String keyPassword)
throws UnrecoverableKeyException, KeyStoreException, NoSuchAlgorithmException,
NoSuchPaddingException, InvalidKeySpecException, InvalidAlgorithmParameterException,
CertificateException, KeyException, IOException {
String algorithm = Security.getProperty("ssl.KeyManagerFactory.algorithm");
if (algorithm == null) {
algorithm = "SunX509";
}
return buildKeyManagerFactory(certChainFile, algorithm, keyFile, keyPassword);
}
/**
* Build a {@link KeyManagerFactory} based upon a key algorithm, key file, key file password,
* and a certificate chain.
*
* @param certChainFile a X.509 certificate chain file in PEM format
* @param keyAlgorithm the standard name of the requested algorithm. See the Java Secure Socket
* Extension
* Reference Guide for information about standard algorithm names.
* @param keyFile a PKCS#8 private key file in PEM format
* @param keyPassword the password of the {@code keyFile}.
* {@code null} if it's not password-protected.
* @return A {@link KeyManagerFactory} based upon a key algorithm, key file, key file password,
* and a certificate chain.
*/
protected static KeyManagerFactory buildKeyManagerFactory(final File certChainFile,
final String keyAlgorithm, final File keyFile, final String keyPassword)
throws KeyStoreException, NoSuchAlgorithmException, NoSuchPaddingException,
InvalidKeySpecException, InvalidAlgorithmParameterException, IOException,
CertificateException, KeyException, UnrecoverableKeyException {
char[] keyPasswordChars = keyPassword == null ? EMPTY_CHARS : keyPassword.toCharArray();
KeyStore ks = buildKeyStore(certChainFile, keyFile, keyPasswordChars);
KeyManagerFactory kmf = KeyManagerFactory.getInstance(keyAlgorithm);
kmf.init(ks, keyPasswordChars);
return kmf;
}
}