/*
 * Copyright (c) 2004-2019, University of Oslo
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * Redistributions of source code must retain the above copyright notice, this
 * list of conditions and the following disclaimer.
 *
 * Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 * Neither the name of the HISP project nor the names of its contributors may
 * be used to endorse or promote products derived from this software without
 * specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package org.hisp.dhis.android.core.arch.db.access.internal;

import android.content.Context;

import net.sqlcipher.database.SQLiteDatabase;
import net.sqlcipher.database.SQLiteOpenHelper;

class EncryptedDatabaseOpenHelper extends SQLiteOpenHelper {

    private final BaseDatabaseOpenHelper baseHelper;

    EncryptedDatabaseOpenHelper(Context context, String databaseName, int targetVersion) {
        super(context, databaseName, null, targetVersion);
        SQLiteDatabase.loadLibs(context);
        this.baseHelper = new BaseDatabaseOpenHelper(context, targetVersion);
    }

    @Override
    public void onOpen(SQLiteDatabase db) {
        super.onOpen(db);
        baseHelper.onOpen(new EncryptedDatabaseAdapter(db));
    }

    @Override
    public void onCreate(SQLiteDatabase db) {
        baseHelper.onCreate(new EncryptedDatabaseAdapter(db));
    }

    @Override
    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
        baseHelper.onUpgrade(new EncryptedDatabaseAdapter(db), oldVersion, newVersion);
    }
}
/*
 * Copyright (c) 2004-2019, University of Oslo
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * Redistributions of source code must retain the above copyright notice, this
 * list of conditions and the following disclaimer.
 *
 * Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 * Neither the name of the HISP project nor the names of its contributors may
 * be used to endorse or promote products derived from this software without
 * specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package org.hisp.dhis.android.core.arch.db.access.internal;

import android.content.Context;

import net.sqlcipher.database.SQLiteDatabase;
import net.sqlcipher.database.SQLiteDatabaseHook;
import net.sqlcipher.database.SQLiteOpenHelper;

class EncryptedDatabaseOpenHelper extends SQLiteOpenHelper {

    private final BaseDatabaseOpenHelper baseHelper;

    private static final SQLiteDatabaseHook hook = new SQLiteDatabaseHook() {
        public void preKey(SQLiteDatabase database) {
        }

        public void postKey(SQLiteDatabase database) {
            database.rawExecSQL("PRAGMA cipher_page_size = 16384;");
            database.rawExecSQL("PRAGMA cipher_memory_security = OFF;");
        }
    };

    EncryptedDatabaseOpenHelper(Context context, String databaseName, int targetVersion) {
        super(context, databaseName, null, targetVersion, hook);
        SQLiteDatabase.loadLibs(context);
        this.baseHelper = new BaseDatabaseOpenHelper(context, targetVersion);
    }

    @Override
    public void onOpen(SQLiteDatabase db) {
        super.onOpen(db);
        baseHelper.onOpen(new EncryptedDatabaseAdapter(db));
    }

    @Override
    public void onCreate(SQLiteDatabase db) {
        baseHelper.onCreate(new EncryptedDatabaseAdapter(db));
    }

    @Override
    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
        baseHelper.onUpgrade(new EncryptedDatabaseAdapter(db), oldVersion, newVersion);
    }
}
Improve encryption performance