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// Copyright 2018 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.hosted.node.admin.configserver;
import com.yahoo.vespa.athenz.tls.AthenzIdentityVerifier;
import com.yahoo.vespa.athenz.tls.AthenzSslContextBuilder;
import com.yahoo.vespa.hosted.node.admin.component.Environment;
import com.yahoo.vespa.hosted.node.admin.configserver.certificate.ConfigServerKeyStoreRefresher;
import com.yahoo.vespa.hosted.node.admin.util.KeyStoreOptions;
import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
import org.bouncycastle.jce.provider.BouncyCastleProvider;
import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.SSLContext;
import java.security.Security;
import java.util.Collections;
import java.util.Optional;
/**
* ConfigServerApi with proper keystore, truststore and hostname verifier to communicate with the
* configserver(s). The keystore is refreshed automatically.
*
* @author freva
*/
public class SslConfigServerApiImpl implements ConfigServerApi {
private final ConfigServerApiImpl configServerApi;
private final Environment environment;
private final Optional<ConfigServerKeyStoreRefresher> keyStoreRefresher;
public SslConfigServerApiImpl(Environment environment) {
Security.addProvider(new BouncyCastleProvider());
this.environment = environment;
// At this point we don't know the state of the keystore, it may not exist at all, or the keystore
// maybe exists, but the certificate in it is expired. Create the ConfigServerApi without a keystore
// (but with truststore and hostname verifier).
this.configServerApi = new ConfigServerApiImpl(
environment.getConfigServerUris(), makeSslConnectionSocketFactory(Optional.empty()));
// If we have keystore options, we should make sure we use the keystore with the latest certificate,
// start the keystore refresher.
this.keyStoreRefresher = environment.getKeyStoreOptions().map(keyStoreOptions -> {
// Any callback from KeyStoreRefresher should result in using the latest keystore on disk
Runnable connectionFactoryRefresher = () -> configServerApi.setSSLConnectionSocketFactory(
makeSslConnectionSocketFactory(Optional.of(keyStoreOptions)));
ConfigServerKeyStoreRefresher keyStoreRefresher = new ConfigServerKeyStoreRefresher(
keyStoreOptions, connectionFactoryRefresher, configServerApi);
// Run the refresh once manually to make sure that we have a valid certificate, otherwise fail.
try {
keyStoreRefresher.refreshKeyStoreIfNeeded();
connectionFactoryRefresher.run(); // Update connectionFactory with the keystore on disk
} catch (Exception e) {
throw new RuntimeException("Failed to acquire certificate to config server", e);
}
keyStoreRefresher.start();
return keyStoreRefresher;
});
}
@Override
public <T> T get(String path, Class<T> wantedReturnType) {
return configServerApi.get(path, wantedReturnType);
}
@Override
public <T> T post(String path, Object bodyJsonPojo, Class<T> wantedReturnType) {
return configServerApi.post(path, bodyJsonPojo, wantedReturnType);
}
@Override
public <T> T put(String path, Optional<Object> bodyJsonPojo, Class<T> wantedReturnType) {
return configServerApi.put(path, bodyJsonPojo, wantedReturnType);
}
@Override
public <T> T patch(String path, Object bodyJsonPojo, Class<T> wantedReturnType) {
return configServerApi.patch(path, bodyJsonPojo, wantedReturnType);
}
@Override
public <T> T delete(String path, Class<T> wantedReturnType) {
return configServerApi.delete(path, wantedReturnType);
}
@Override
public void close() {
keyStoreRefresher.ifPresent(ConfigServerKeyStoreRefresher::stop);
configServerApi.close();
}
private SSLConnectionSocketFactory makeSslConnectionSocketFactory(Optional<KeyStoreOptions> keyStoreOptions) {
return new SSLConnectionSocketFactory(makeSslContext(keyStoreOptions), makeHostnameVerifier());
}
private SSLContext makeSslContext(Optional<KeyStoreOptions> keyStoreOptions) {
AthenzSslContextBuilder sslContextBuilder = new AthenzSslContextBuilder();
environment.getTrustStoreOptions().ifPresent(options ->
sslContextBuilder.withTrustStore(options.path.toFile(), options.type));
keyStoreOptions.ifPresent(options -> {
try {
sslContextBuilder.withKeyStore(options.loadKeyStore(), options.password);
} catch (Exception e) {
throw new RuntimeException("Failed to read key store", e);
}
});
return sslContextBuilder.build();
}
private HostnameVerifier makeHostnameVerifier() {
return environment.getAthenzIdentity()
.map(identity -> (HostnameVerifier) new AthenzIdentityVerifier(Collections.singleton(identity)))
.orElseGet(SSLConnectionSocketFactory::getDefaultHostnameVerifier);
}
}
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