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org.springframework.boot.web.embedded.undertow.SslBuilderCustomizer Maven / Gradle / Ivy
/*
* Copyright 2012-2020 the original author or authors.
*
* Licensed 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
*
* https://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.springframework.boot.web.embedded.undertow;
import java.net.InetAddress;
import java.net.Socket;
import java.net.URL;
import java.security.KeyManagementException;
import java.security.KeyStore;
import java.security.NoSuchAlgorithmException;
import java.security.Principal;
import java.security.PrivateKey;
import java.security.cert.X509Certificate;
import javax.net.ssl.KeyManager;
import javax.net.ssl.KeyManagerFactory;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLEngine;
import javax.net.ssl.TrustManager;
import javax.net.ssl.TrustManagerFactory;
import javax.net.ssl.X509ExtendedKeyManager;
import io.undertow.Undertow;
import org.xnio.Options;
import org.xnio.Sequence;
import org.xnio.SslClientAuthMode;
import org.springframework.boot.web.server.Ssl;
import org.springframework.boot.web.server.SslConfigurationValidator;
import org.springframework.boot.web.server.SslStoreProvider;
import org.springframework.boot.web.server.WebServerException;
import org.springframework.util.ResourceUtils;
/**
* {@link UndertowBuilderCustomizer} that configures SSL on the given builder instance.
*
* @author Brian Clozel
* @author Raheela Aslam
*/
class SslBuilderCustomizer implements UndertowBuilderCustomizer {
private final int port;
private final InetAddress address;
private final Ssl ssl;
private final SslStoreProvider sslStoreProvider;
SslBuilderCustomizer(int port, InetAddress address, Ssl ssl, SslStoreProvider sslStoreProvider) {
this.port = port;
this.address = address;
this.ssl = ssl;
this.sslStoreProvider = sslStoreProvider;
}
@Override
public void customize(Undertow.Builder builder) {
try {
SSLContext sslContext = SSLContext.getInstance(this.ssl.getProtocol());
sslContext.init(getKeyManagers(this.ssl, this.sslStoreProvider),
getTrustManagers(this.ssl, this.sslStoreProvider), null);
builder.addHttpsListener(this.port, getListenAddress(), sslContext);
builder.setSocketOption(Options.SSL_CLIENT_AUTH_MODE, getSslClientAuthMode(this.ssl));
if (this.ssl.getEnabledProtocols() != null) {
builder.setSocketOption(Options.SSL_ENABLED_PROTOCOLS, Sequence.of(this.ssl.getEnabledProtocols()));
}
if (this.ssl.getCiphers() != null) {
builder.setSocketOption(Options.SSL_ENABLED_CIPHER_SUITES, Sequence.of(this.ssl.getCiphers()));
}
}
catch (NoSuchAlgorithmException | KeyManagementException ex) {
throw new IllegalStateException(ex);
}
}
private String getListenAddress() {
if (this.address == null) {
return "0.0.0.0";
}
return this.address.getHostAddress();
}
private SslClientAuthMode getSslClientAuthMode(Ssl ssl) {
if (ssl.getClientAuth() == Ssl.ClientAuth.NEED) {
return SslClientAuthMode.REQUIRED;
}
if (ssl.getClientAuth() == Ssl.ClientAuth.WANT) {
return SslClientAuthMode.REQUESTED;
}
return SslClientAuthMode.NOT_REQUESTED;
}
private KeyManager[] getKeyManagers(Ssl ssl, SslStoreProvider sslStoreProvider) {
try {
KeyStore keyStore = getKeyStore(ssl, sslStoreProvider);
SslConfigurationValidator.validateKeyAlias(keyStore, ssl.getKeyAlias());
KeyManagerFactory keyManagerFactory = KeyManagerFactory
.getInstance(KeyManagerFactory.getDefaultAlgorithm());
char[] keyPassword = (ssl.getKeyPassword() != null) ? ssl.getKeyPassword().toCharArray() : null;
if (keyPassword == null && ssl.getKeyStorePassword() != null) {
keyPassword = ssl.getKeyStorePassword().toCharArray();
}
keyManagerFactory.init(keyStore, keyPassword);
if (ssl.getKeyAlias() != null) {
return getConfigurableAliasKeyManagers(ssl, keyManagerFactory.getKeyManagers());
}
return keyManagerFactory.getKeyManagers();
}
catch (Exception ex) {
throw new IllegalStateException(ex);
}
}
private KeyManager[] getConfigurableAliasKeyManagers(Ssl ssl, KeyManager[] keyManagers) {
for (int i = 0; i < keyManagers.length; i++) {
if (keyManagers[i] instanceof X509ExtendedKeyManager) {
keyManagers[i] = new ConfigurableAliasKeyManager((X509ExtendedKeyManager) keyManagers[i],
ssl.getKeyAlias());
}
}
return keyManagers;
}
private KeyStore getKeyStore(Ssl ssl, SslStoreProvider sslStoreProvider) throws Exception {
if (sslStoreProvider != null) {
return sslStoreProvider.getKeyStore();
}
return loadKeyStore(ssl.getKeyStoreType(), ssl.getKeyStoreProvider(), ssl.getKeyStore(),
ssl.getKeyStorePassword());
}
private TrustManager[] getTrustManagers(Ssl ssl, SslStoreProvider sslStoreProvider) {
try {
KeyStore store = getTrustStore(ssl, sslStoreProvider);
TrustManagerFactory trustManagerFactory = TrustManagerFactory
.getInstance(TrustManagerFactory.getDefaultAlgorithm());
trustManagerFactory.init(store);
return trustManagerFactory.getTrustManagers();
}
catch (Exception ex) {
throw new IllegalStateException(ex);
}
}
private KeyStore getTrustStore(Ssl ssl, SslStoreProvider sslStoreProvider) throws Exception {
if (sslStoreProvider != null) {
return sslStoreProvider.getTrustStore();
}
return loadTrustStore(ssl.getTrustStoreType(), ssl.getTrustStoreProvider(), ssl.getTrustStore(),
ssl.getTrustStorePassword());
}
private KeyStore loadKeyStore(String type, String provider, String resource, String password) throws Exception {
return loadStore(type, provider, resource, password);
}
private KeyStore loadTrustStore(String type, String provider, String resource, String password) throws Exception {
if (resource == null) {
return null;
}
return loadStore(type, provider, resource, password);
}
private KeyStore loadStore(String type, String provider, String resource, String password) throws Exception {
type = (type != null) ? type : "JKS";
KeyStore store = (provider != null) ? KeyStore.getInstance(type, provider) : KeyStore.getInstance(type);
try {
URL url = ResourceUtils.getURL(resource);
store.load(url.openStream(), (password != null) ? password.toCharArray() : null);
return store;
}
catch (Exception ex) {
throw new WebServerException("Could not load key store '" + resource + "'", ex);
}
}
/**
* {@link X509ExtendedKeyManager} that supports custom alias configuration.
*/
private static class ConfigurableAliasKeyManager extends X509ExtendedKeyManager {
private final X509ExtendedKeyManager keyManager;
private final String alias;
ConfigurableAliasKeyManager(X509ExtendedKeyManager keyManager, String alias) {
this.keyManager = keyManager;
this.alias = alias;
}
@Override
public String chooseEngineClientAlias(String[] strings, Principal[] principals, SSLEngine sslEngine) {
return this.keyManager.chooseEngineClientAlias(strings, principals, sslEngine);
}
@Override
public String chooseEngineServerAlias(String s, Principal[] principals, SSLEngine sslEngine) {
if (this.alias == null) {
return this.keyManager.chooseEngineServerAlias(s, principals, sslEngine);
}
return this.alias;
}
@Override
public String chooseClientAlias(String[] keyType, Principal[] issuers, Socket socket) {
return this.keyManager.chooseClientAlias(keyType, issuers, socket);
}
@Override
public String chooseServerAlias(String keyType, Principal[] issuers, Socket socket) {
return this.keyManager.chooseServerAlias(keyType, issuers, socket);
}
@Override
public X509Certificate[] getCertificateChain(String alias) {
return this.keyManager.getCertificateChain(alias);
}
@Override
public String[] getClientAliases(String keyType, Principal[] issuers) {
return this.keyManager.getClientAliases(keyType, issuers);
}
@Override
public PrivateKey getPrivateKey(String alias) {
return this.keyManager.getPrivateKey(alias);
}
@Override
public String[] getServerAliases(String keyType, Principal[] issuers) {
return this.keyManager.getServerAliases(keyType, issuers);
}
}
}
