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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.kafka.connect.runtime.rest.util;
import org.apache.kafka.common.config.SslConfigs;
import org.apache.kafka.common.config.internals.BrokerSecurityConfigs;
import org.apache.kafka.common.config.types.Password;
import org.apache.kafka.connect.runtime.WorkerConfig;
import org.eclipse.jetty.util.ssl.SslContextFactory;
import java.util.Arrays;
import java.util.List;
import java.util.Map;
import java.util.regex.Pattern;
/**
* Helper class for setting up SSL for RestServer and RestClient
*/
public class SSLUtils {
private static final Pattern COMMA_WITH_WHITESPACE = Pattern.compile("\\s*,\\s*");
/**
* Configures SSL/TLS for HTTPS Jetty Server / Client
*/
public static SslContextFactory createSslContextFactory(WorkerConfig config) {
return createSslContextFactory(config, false);
}
/**
* Configures SSL/TLS for HTTPS Jetty Server / Client
*/
@SuppressWarnings("deprecation")
public static SslContextFactory createSslContextFactory(WorkerConfig config, boolean client) {
Map sslConfigValues = config.valuesWithPrefixAllOrNothing("listeners.https.");
SslContextFactory ssl = new SslContextFactory();
configureSslContextFactoryKeyStore(ssl, sslConfigValues);
configureSslContextFactoryTrustStore(ssl, sslConfigValues);
configureSslContextFactoryAlgorithms(ssl, sslConfigValues);
configureSslContextFactoryAuthentication(ssl, sslConfigValues);
if (client)
configureSslContextFactoryEndpointIdentification(ssl, sslConfigValues);
return ssl;
}
/**
* Configures KeyStore related settings in SslContextFactory
*/
protected static void configureSslContextFactoryKeyStore(SslContextFactory ssl, Map sslConfigValues) {
ssl.setKeyStoreType((String) getOrDefault(sslConfigValues, SslConfigs.SSL_KEYSTORE_TYPE_CONFIG, SslConfigs.DEFAULT_SSL_KEYSTORE_TYPE));
String sslKeystoreLocation = (String) sslConfigValues.get(SslConfigs.SSL_KEYSTORE_LOCATION_CONFIG);
if (sslKeystoreLocation != null)
ssl.setKeyStorePath(sslKeystoreLocation);
Password sslKeystorePassword = (Password) sslConfigValues.get(SslConfigs.SSL_KEYSTORE_PASSWORD_CONFIG);
if (sslKeystorePassword != null)
ssl.setKeyStorePassword(sslKeystorePassword.value());
Password sslKeyPassword = (Password) sslConfigValues.get(SslConfigs.SSL_KEY_PASSWORD_CONFIG);
if (sslKeyPassword != null)
ssl.setKeyManagerPassword(sslKeyPassword.value());
}
protected static Object getOrDefault(Map configMap, String key, Object defaultValue) {
if (configMap.containsKey(key))
return configMap.get(key);
return defaultValue;
}
/**
* Configures TrustStore related settings in SslContextFactory
*/
protected static void configureSslContextFactoryTrustStore(SslContextFactory ssl, Map sslConfigValues) {
ssl.setTrustStoreType((String) getOrDefault(sslConfigValues, SslConfigs.SSL_TRUSTSTORE_TYPE_CONFIG, SslConfigs.DEFAULT_SSL_TRUSTSTORE_TYPE));
String sslTruststoreLocation = (String) sslConfigValues.get(SslConfigs.SSL_TRUSTSTORE_LOCATION_CONFIG);
if (sslTruststoreLocation != null)
ssl.setTrustStorePath(sslTruststoreLocation);
Password sslTruststorePassword = (Password) sslConfigValues.get(SslConfigs.SSL_TRUSTSTORE_PASSWORD_CONFIG);
if (sslTruststorePassword != null)
ssl.setTrustStorePassword(sslTruststorePassword.value());
}
/**
* Configures Protocol, Algorithm and Provider related settings in SslContextFactory
*/
@SuppressWarnings("unchecked")
protected static void configureSslContextFactoryAlgorithms(SslContextFactory ssl, Map sslConfigValues) {
List sslEnabledProtocols = (List) getOrDefault(sslConfigValues, SslConfigs.SSL_ENABLED_PROTOCOLS_CONFIG, Arrays.asList(COMMA_WITH_WHITESPACE.split(SslConfigs.DEFAULT_SSL_ENABLED_PROTOCOLS)));
ssl.setIncludeProtocols(sslEnabledProtocols.toArray(new String[sslEnabledProtocols.size()]));
String sslProvider = (String) sslConfigValues.get(SslConfigs.SSL_PROVIDER_CONFIG);
if (sslProvider != null)
ssl.setProvider(sslProvider);
ssl.setProtocol((String) getOrDefault(sslConfigValues, SslConfigs.SSL_PROTOCOL_CONFIG, SslConfigs.DEFAULT_SSL_PROTOCOL));
List sslCipherSuites = (List) sslConfigValues.get(SslConfigs.SSL_CIPHER_SUITES_CONFIG);
if (sslCipherSuites != null)
ssl.setIncludeCipherSuites(sslCipherSuites.toArray(new String[sslCipherSuites.size()]));
ssl.setKeyManagerFactoryAlgorithm((String) getOrDefault(sslConfigValues, SslConfigs.SSL_KEYMANAGER_ALGORITHM_CONFIG, SslConfigs.DEFAULT_SSL_KEYMANGER_ALGORITHM));
String sslSecureRandomImpl = (String) sslConfigValues.get(SslConfigs.SSL_SECURE_RANDOM_IMPLEMENTATION_CONFIG);
if (sslSecureRandomImpl != null)
ssl.setSecureRandomAlgorithm(sslSecureRandomImpl);
ssl.setTrustManagerFactoryAlgorithm((String) getOrDefault(sslConfigValues, SslConfigs.SSL_TRUSTMANAGER_ALGORITHM_CONFIG, SslConfigs.DEFAULT_SSL_TRUSTMANAGER_ALGORITHM));
}
/**
* Configures Protocol, Algorithm and Provider related settings in SslContextFactory
*/
protected static void configureSslContextFactoryEndpointIdentification(SslContextFactory ssl, Map sslConfigValues) {
String sslEndpointIdentificationAlg = (String) sslConfigValues.get(SslConfigs.SSL_ENDPOINT_IDENTIFICATION_ALGORITHM_CONFIG);
if (sslEndpointIdentificationAlg != null)
ssl.setEndpointIdentificationAlgorithm(sslEndpointIdentificationAlg);
}
/**
* Configures Authentication related settings in SslContextFactory
*/
@SuppressWarnings("deprecation")
protected static void configureSslContextFactoryAuthentication(SslContextFactory ssl, Map sslConfigValues) {
String sslClientAuth = (String) getOrDefault(sslConfigValues, BrokerSecurityConfigs.SSL_CLIENT_AUTH_CONFIG, "none");
switch (sslClientAuth) {
case "requested":
ssl.setWantClientAuth(true);
break;
case "required":
ssl.setNeedClientAuth(true);
break;
default:
ssl.setNeedClientAuth(false);
ssl.setWantClientAuth(false);
}
}
}
