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// Copyright 2019 Oath Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.security.tls;
import com.yahoo.security.KeyStoreBuilder;
import com.yahoo.security.KeyStoreType;
import javax.net.ssl.TrustManager;
import javax.net.ssl.TrustManagerFactory;
import javax.net.ssl.X509ExtendedTrustManager;
import java.security.GeneralSecurityException;
import java.security.KeyStore;
import java.security.cert.X509Certificate;
import java.util.Arrays;
import java.util.List;
/**
* Utility methods for constructing {@link X509ExtendedTrustManager}.
*
* @author bjorncs
*/
public class TrustManagerUtils {
public static X509ExtendedTrustManager createDefaultX509TrustManager(KeyStore truststore) {
try {
TrustManagerFactory trustManagerFactory = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
trustManagerFactory.init(truststore);
TrustManager[] trustManagers = trustManagerFactory.getTrustManagers();
return Arrays.stream(trustManagers)
.filter(manager -> manager instanceof X509ExtendedTrustManager)
.map(X509ExtendedTrustManager.class::cast)
.findFirst()
.orElseThrow(() -> new RuntimeException("No X509ExtendedTrustManager in " + List.of(trustManagers)));
} catch (GeneralSecurityException e) {
throw new RuntimeException(e);
}
}
public static X509ExtendedTrustManager createDefaultX509TrustManager(List<X509Certificate> certificates) {
KeyStoreBuilder truststoreBuilder = KeyStoreBuilder.withType(KeyStoreType.PKCS12);
for (int i = 0; i < certificates.size(); i++) {
truststoreBuilder.withCertificateEntry("cert-" + i, certificates.get(i));
}
KeyStore truststore = truststoreBuilder.build();
return createDefaultX509TrustManager(truststore);
}
public static X509ExtendedTrustManager createDefaultX509TrustManager() {
return createDefaultX509TrustManager((KeyStore) null);
}
}
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