Hook.java

/*******************************************************************************
 * Copyright (c) 2014 CodingBad.
 * All rights reserved.  This file is part of ASA.
 * 
 * ASA 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.
 * 
 * ASA 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 ASA.  If not, see <http://www.gnu.org/licenses/>.
 * 
 * Contributors:
 * Ayelén Chavez - ashy.on.line@gmail.com
 * Joaquín Rinaudo - jmrinaudo@gmail.com
 ******************************************************************************/
 
 
package com.thesis.asa.hook;


import android.content.Context;
import android.database.Cursor;
import android.os.Binder;
import com.thesis.asa.Utilities;
import com.thesis.asa.Data.SecurityMode;
import com.thesis.asa.resourcemvc.Resource;

public class Hook {
	protected static Context context;
	
	protected static Object[] queryConfigurationFromASA(Context context,
			Resource resource) throws Throwable {
		int uid = Binder.getCallingUid();
		int pid = Binder.getCallingPid();
		String configuration = "";

		Cursor resourceCursor = resource.getConfigurationForAppsAndProcess(uid,
				pid);

		if (resourceCursor != null && resourceCursor.moveToFirst()
				&& resourceCursor.getCount() > 0) {
			configuration = (String) resource
					.configurationFromCursor(resourceCursor);
		} else {
			int isSystem = Utilities.isSystem(context, uid) ? 1 : 0;
			configuration = (String) resource.defaultConfiguration(isSystem);
		}

		if (resourceCursor != null) {
			resourceCursor.close();
		}

		return resource.loadSettingsFromConfiguration(configuration);
	}

	protected static Object[] getProperties(String className) throws Throwable {
		Context context = Hook.context;
		Resource r = (Resource) Class.forName(className)
				.getDeclaredConstructor(Context.class).newInstance(context);

		if (context == null) {
			SecurityMode mode = SecurityMode.PARANOID;
			int isSystem = 0;
			return Resource.getConfiguration(mode, isSystem, r);
		} else {
			Object[] currentConfiguration = Hook.queryConfigurationFromASA(
					context, r);
			return currentConfiguration;
		}
	}
}