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

/*
 * Copyright (C) 2012-2013 Dominik Schürmann <dominik@dominikschuermann.de>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

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
            }
        }
    }

}