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// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.hosted.controller.athenz.impl;
import com.google.inject.Inject;
import com.yahoo.vespa.hosted.controller.api.integration.athenz.AthenzClientFactory;
import com.yahoo.vespa.hosted.controller.api.integration.athenz.AthenzIdentityCertificate;
import com.yahoo.vespa.hosted.controller.api.integration.athenz.AthenzSslContextProvider;
import com.yahoo.vespa.hosted.controller.api.integration.athenz.ZtsClient;
import com.yahoo.vespa.hosted.controller.athenz.config.AthenzConfig;
import javax.net.ssl.KeyManager;
import javax.net.ssl.KeyManagerFactory;
import javax.net.ssl.SSLContext;
import javax.net.ssl.TrustManager;
import javax.net.ssl.TrustManagerFactory;
import java.io.FileInputStream;
import java.io.IOException;
import java.security.KeyManagementException;
import java.security.KeyStore;
import java.security.KeyStoreException;
import java.security.NoSuchAlgorithmException;
import java.security.UnrecoverableKeyException;
import java.security.cert.Certificate;
import java.security.cert.CertificateException;
/**
* @author bjorncs
*/
public class AthenzSslContextProviderImpl implements AthenzSslContextProvider {
private final AthenzClientFactory clientFactory;
private final AthenzConfig config;
@Inject
public AthenzSslContextProviderImpl(AthenzClientFactory clientFactory, AthenzConfig config) {
this.clientFactory = clientFactory;
this.config = config;
}
@Override
public SSLContext get() {
return createSslContext();
}
private SSLContext createSslContext() {
try {
SSLContext sslContext = SSLContext.getInstance("TLSv1.2");
sslContext.init(createKeyManagersWithServiceCertificate(clientFactory.createZtsClientWithServicePrincipal()),
createTrustManagersWithAthenzCa(config),
null);
return sslContext;
} catch (NoSuchAlgorithmException | KeyManagementException e) {
throw new RuntimeException(e);
}
}
private static KeyManager[] createKeyManagersWithServiceCertificate(ZtsClient ztsClient) {
try {
AthenzIdentityCertificate identityCertificate = ztsClient.getIdentityCertificate();
KeyStore keyStore = KeyStore.getInstance("JKS");
keyStore.load(null);
keyStore.setKeyEntry("athenz-controller-key",
identityCertificate.getPrivateKey(),
new char[0],
new Certificate[]{identityCertificate.getCertificate()});
KeyManagerFactory keyManagerFactory = KeyManagerFactory.getInstance(KeyManagerFactory.getDefaultAlgorithm());
keyManagerFactory.init(keyStore, new char[0]);
return keyManagerFactory.getKeyManagers();
} catch (KeyStoreException | NoSuchAlgorithmException | UnrecoverableKeyException | CertificateException | IOException e) {
throw new RuntimeException(e);
}
}
private static TrustManager[] createTrustManagersWithAthenzCa(AthenzConfig config) {
try {
KeyStore trustStore = KeyStore.getInstance("JKS");
try (FileInputStream in = new FileInputStream(config.athenzCaTrustStore())) {
trustStore.load(in, "changeit".toCharArray());
}
TrustManagerFactory trustManagerFactory = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
trustManagerFactory.init(trustStore);
return trustManagerFactory.getTrustManagers();
} catch (CertificateException | IOException | KeyStoreException | NoSuchAlgorithmException e) {
throw new RuntimeException(e);
}
}
}
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