/**
* Copyright 2009 Google Inc.
*
* 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
*
* 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 com.google.step2.xmlsimplesign;
import com.google.inject.Singleton;
import java.security.KeyStore;
import java.security.KeyStoreException;
import java.security.NoSuchAlgorithmException;
import java.security.cert.X509Certificate;
import java.util.Arrays;
import java.util.Collection;
import javax.net.ssl.TrustManager;
import javax.net.ssl.TrustManagerFactory;
import javax.net.ssl.X509TrustManager;
/**
* By default, we use the same CA roots that Java's SSL implementation uses.
*/
@Singleton
public class DefaultTrustRootsProvider implements TrustRootsProvider {
private final Collection<X509Certificate> roots;
public DefaultTrustRootsProvider() {
TrustManagerFactory factory;
try {
factory = TrustManagerFactory.getInstance("X509");
// null keystore means we load the keystore defined through
// -Djavax.net.ssl.trustStore, or if that is not set, a keystore on a
// default path
factory.init((KeyStore) null);
} catch (NoSuchAlgorithmException e) {
throw new IllegalStateException(e);
} catch (KeyStoreException e) {
throw new IllegalStateException(e);
}
TrustManager[] managers = factory.getTrustManagers();
// there is only one trust manager for the SSL root certs
X509TrustManager manager = (X509TrustManager) managers[0];
this.roots = Arrays.asList(manager.getAcceptedIssuers());
}
public Collection<X509Certificate> getTrustRoots() {
return roots;
}
}