android/security/net/config/NetworkSecurityConfigProvider.java

/*
 * Copyright (C) 2015 The Android Open Source Project
 *
 * 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 android.security.net.config;

import android.content.Context;
import java.security.Security;
import java.security.Provider;

/** @hide */
public final class NetworkSecurityConfigProvider extends Provider {
    private static final String PREFIX =
            NetworkSecurityConfigProvider.class.getPackage().getName() + ".";

    public NetworkSecurityConfigProvider() {
        // TODO: More clever name than this
        super("AndroidNSSP", 1.0, "Android Network Security Policy Provider");
        put("TrustManagerFactory.PKIX", PREFIX + "RootTrustManagerFactorySpi");
        put("Alg.Alias.TrustManagerFactory.X509", "PKIX");
    }

    public static void install(Context context) {
        ApplicationConfig config = new ApplicationConfig(new ManifestConfigSource(context));
        ApplicationConfig.setDefaultInstance(config);
        int pos = Security.insertProviderAt(new NetworkSecurityConfigProvider(), 1);
        if (pos != 1) {
            throw new RuntimeException("Failed to install provider as highest priority provider."
                    + " Provider was installed at position " + pos);
        }
        libcore.net.NetworkSecurityPolicy.setInstance(new ConfigNetworkSecurityPolicy(config));
    }
}