open-keychain/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/KeychainApplication.java

/*
 * Copyright (C) 2012 Dominik Schürmann <dominik@dominikschuermann.de>
 *
 * 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 org.sufficientlysecure.keychain;

import java.io.File;
import java.security.Security;

import org.spongycastle.jce.provider.BouncyCastleProvider;
import org.sufficientlysecure.keychain.util.PRNGFixes;

import android.app.Application;
import android.os.Environment;

public class KeychainApplication extends Application {

    static {
        // Define Java Security Provider to be Bouncy Castle
    	Security.insertProviderAt(new BouncyCastleProvider(),  1);
    }

    @Override
    public void onCreate() {
        super.onCreate();
        
        // apply RNG fixes
        PRNGFixes.apply();

        // Create APG directory on sdcard if not existing
        if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
            File dir = new File(Constants.path.APP_DIR);
            if (!dir.exists() && !dir.mkdirs()) {
                // ignore this for now, it's not crucial
                // that the directory doesn't exist at this point
            }
        }
    }

}