hostage/src/de/tudarmstadt/informatik/hostage/persistence/HostageDBOpenHelper.java

package de.tudarmstadt.informatik.hostage.persistence;

import java.util.ArrayList;
import java.util.HashMap;

import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.util.Log;
import de.tudarmstadt.informatik.hostage.logging.Record;
import de.tudarmstadt.informatik.hostage.logging.Record.TYPE;
import de.tudarmstadt.informatik.hostage.persistence.HostageDBContract.AttackEntry;
import de.tudarmstadt.informatik.hostage.persistence.HostageDBContract.NetworkEntry;
import de.tudarmstadt.informatik.hostage.persistence.HostageDBContract.PacketEntry;
import de.tudarmstadt.informatik.hostage.persistence.HostageDBContract.PortscanEntry;

public class HostageDBOpenHelper extends SQLiteOpenHelper {

	private static final String DATABASE_NAME = "hostage.db";
	private static final int DATABASE_VERSION = 1;

	static {
		StringBuilder networkSQLBuilder = new StringBuilder("CREATE TABLE ").append(NetworkEntry.TABLE_NAME).append("(");
		networkSQLBuilder.append(NetworkEntry.COLUMN_NAME_BSSID).append(" TEXT PRIMARY KEY,");
		networkSQLBuilder.append(NetworkEntry.COLUMN_NAME_SSID).append(" TEXT,");
		networkSQLBuilder.append(NetworkEntry.COLUMN_NAME_LATITUDE).append(" INTEGER,");
		networkSQLBuilder.append(NetworkEntry.COLUMN_NAME_LONGITUDE).append(" INTEGER,");
		networkSQLBuilder.append(NetworkEntry.COLUMN_NAME_ACCURACY).append(" INTEGER,");
		networkSQLBuilder.append(NetworkEntry.COLUMN_NAME_GEO_TIMESTAMP).append(" INTEGER");
		networkSQLBuilder.append(")");
		SQL_CREATE_NETWORK_ENTRIES = networkSQLBuilder.toString();

		StringBuilder attackSQLBuilder = new StringBuilder("CREATE TABLE ").append(AttackEntry.TABLE_NAME).append("(");
		attackSQLBuilder.append(AttackEntry.COLUMN_NAME_ATTACK_ID).append(" INTEGER PRIMARY KEY,");
		attackSQLBuilder.append(AttackEntry.COLUMN_NAME_PROTOCOL).append(" TEXT,");
		attackSQLBuilder.append(AttackEntry.COLUMN_NAME_EXTERNAL_IP).append(" TEXT,");
		attackSQLBuilder.append(AttackEntry.COLUMN_NAME_LOCAL_IP).append(" BLOB,");
		attackSQLBuilder.append(AttackEntry.COLUMN_NAME_LOCAL_PORT).append(" INTEGER,");
		attackSQLBuilder.append(AttackEntry.COLUMN_NAME_REMOTE_IP).append(" BLOB,");
		attackSQLBuilder.append(AttackEntry.COLUMN_NAME_REMOTE_PORT).append(" INTEGER,");
		attackSQLBuilder.append(AttackEntry.COLUMN_NAME_BSSID).append(" TEXT,");
		attackSQLBuilder.append(String.format("FOREIGN KEY(%s) REFERENCES %s(%s)", AttackEntry.COLUMN_NAME_BSSID, NetworkEntry.TABLE_NAME,
				NetworkEntry.COLUMN_NAME_BSSID));
		attackSQLBuilder.append(")");
		SQL_CREATE_ATTACK_ENTRIES = attackSQLBuilder.toString();

		StringBuilder packetSQLBuilder = new StringBuilder("CREATE TABLE ").append(PacketEntry.TABLE_NAME).append("(");
		packetSQLBuilder.append(PacketEntry.COLUMN_NAME_ID).append(" INTEGER NOT NULL,");
		packetSQLBuilder.append(PacketEntry.COLUMN_NAME_ATTACK_ID).append(" INTEGER NOT NULL,");
		packetSQLBuilder.append(PacketEntry.COLUMN_NAME_TYPE).append(" TEXT,");
		packetSQLBuilder.append(PacketEntry.COLUMN_NAME_PACKET_TIMESTAMP).append(" INTEGER,");
		packetSQLBuilder.append(PacketEntry.COLUMN_NAME_PACKET).append(" TEXT,");
		packetSQLBuilder.append(String.format("PRIMARY KEY(%s,%s)", PacketEntry.COLUMN_NAME_ID, PacketEntry.COLUMN_NAME_ATTACK_ID));
		packetSQLBuilder.append(String.format("FOREIGN KEY(%s) REFERENCES %s(%s)", PacketEntry.COLUMN_NAME_ATTACK_ID, AttackEntry.TABLE_NAME,
				AttackEntry.COLUMN_NAME_ATTACK_ID));
		packetSQLBuilder.append(")");
		SQL_CREATE_PACKET_ENTRIES = packetSQLBuilder.toString();
	}

	private static final String SQL_CREATE_NETWORK_ENTRIES;
	private static final String SQL_CREATE_ATTACK_ENTRIES;
	private static final String SQL_CREATE_PACKET_ENTRIES;

	private static final String SQL_DELETE_PACKET_ENTRIES = "DROP TABLE IF EXISTS " + PacketEntry.TABLE_NAME;
	private static final String SQL_DELETE_ATTACK_ENTRIES = "DROP TABLE IF EXISTS " + AttackEntry.TABLE_NAME;
	private static final String SQL_DELETE_NETWORK_ENTRIES = "DROP TABLE IF EXISTS " + NetworkEntry.TABLE_NAME;

	public HostageDBOpenHelper(Context context) {
		super(context, DATABASE_NAME, null, DATABASE_VERSION);
	}

	@Override
	public void onCreate(SQLiteDatabase db) {
		db.execSQL(SQL_CREATE_PACKET_ENTRIES);
		db.execSQL(SQL_CREATE_ATTACK_ENTRIES);
		db.execSQL(SQL_CREATE_NETWORK_ENTRIES);
	}

	@Override
	public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
		db.execSQL(SQL_DELETE_PACKET_ENTRIES);
		db.execSQL(SQL_DELETE_ATTACK_ENTRIES);
		db.execSQL(SQL_DELETE_NETWORK_ENTRIES);
		onCreate(db);
	}

	/**
	 * Adds a given {@link Record} to the database.
	 * 
	 * @param record
	 *            The added {@link Record} .
	 */
	public void addRecord(Record record) {
		SQLiteDatabase db = this.getWritableDatabase();

		HashMap<String, Object> bssidValues = new HashMap<String, Object>();
		bssidValues.put(NetworkEntry.COLUMN_NAME_BSSID, record.getBssid());
		bssidValues.put(NetworkEntry.COLUMN_NAME_SSID, record.getSsid());
		bssidValues.put(NetworkEntry.COLUMN_NAME_LATITUDE, record.getLatitude());
		bssidValues.put(NetworkEntry.COLUMN_NAME_LONGITUDE, record.getLongitude());
		bssidValues.put(NetworkEntry.COLUMN_NAME_ACCURACY, record.getAccuracy());
		bssidValues.put(NetworkEntry.COLUMN_NAME_GEO_TIMESTAMP, record.getTimestampLocation());

		ContentValues attackValues = new ContentValues();
		attackValues.put(AttackEntry.COLUMN_NAME_ATTACK_ID, record.getAttack_id()); // Log
																					// Attack
																					// ID
		attackValues.put(AttackEntry.COLUMN_NAME_PROTOCOL, record.getProtocol().toString());
		attackValues.put(AttackEntry.COLUMN_NAME_EXTERNAL_IP, record.getExternalIP());
		attackValues.put(AttackEntry.COLUMN_NAME_LOCAL_IP, record.getLocalIP()); // Log
																					// Local
																					// IP
		attackValues.put(AttackEntry.COLUMN_NAME_LOCAL_PORT, record.getLocalPort());
		attackValues.put(AttackEntry.COLUMN_NAME_REMOTE_IP, record.getRemoteIP()); // Log
																					// Remote
																					// IP
		attackValues.put(AttackEntry.COLUMN_NAME_REMOTE_PORT, record.getRemotePort()); // Log
																						// Remote
																						// Port
		attackValues.put(AttackEntry.COLUMN_NAME_BSSID, record.getBssid());

		ContentValues recordValues = new ContentValues();
		recordValues.put(PacketEntry.COLUMN_NAME_ID, record.getId()); // Log
																		// Message
																		// Number
		recordValues.put(PacketEntry.COLUMN_NAME_ATTACK_ID, record.getAttack_id()); // Log
																					// Attack
																					// ID
		recordValues.put(PacketEntry.COLUMN_NAME_TYPE, record.getType().name()); // Log
																					// Type
		recordValues.put(PacketEntry.COLUMN_NAME_PACKET_TIMESTAMP, record.getTimestamp()); // Log
																							// Timestamp
		recordValues.put(PacketEntry.COLUMN_NAME_PACKET, record.getPacket()); // Log
																				// Packet

		// Inserting Rows
		db.insertWithOnConflict(AttackEntry.TABLE_NAME, null, attackValues, SQLiteDatabase.CONFLICT_REPLACE);
		db.insert(PacketEntry.TABLE_NAME, null, recordValues);
		db.close(); // Closing database connection
		// Update Network Information
		updateNetworkInformation(bssidValues);
	}

	public void insertPortscan(long timestamp, String ip) {
		SQLiteDatabase db = this.getWritableDatabase();

		ContentValues portscanValues = new ContentValues();
		portscanValues.put(PortscanEntry.COLUMN_NAME_PORTSCAN_TIMESTAMP, timestamp);
		portscanValues.put(PortscanEntry.COLUMN_NAME_FROM_IP, ip);

		db.insert(PortscanEntry.TABLE_NAME, null, portscanValues);
	}

	/**
	 * Determines if a network with given BSSID has already been recorded as
	 * malicious.
	 * 
	 * @param BSSID
	 *            The BSSID of the network.
	 * @return True if an attack has been recorded in a network with the given
	 *         BSSID, else false.
	 */
	public boolean bssidSeen(String BSSID) {
		String countQuery = "SELECT  * FROM " + NetworkEntry.TABLE_NAME + " WHERE " + NetworkEntry.COLUMN_NAME_BSSID + " = " + "'" + BSSID + "'";
		SQLiteDatabase db = this.getReadableDatabase();
		Cursor cursor = db.rawQuery(countQuery, null);
		int result = cursor.getCount();
		cursor.close();
		db.close();
		return result > 0;
	}

	/**
	 * Determines if an attack has been recorded on a specific protocol in a
	 * network with a given BSSID.
	 * 
	 * @param protocol
	 *            The
	 *            {@link de.tudarmstadt.informatik.hostage.protocol.Protocol
	 *            Protocol} to inspect.
	 * @param BSSID
	 *            The BSSID of the network.
	 * @return True if an attack on the given protocol has been recorded in a
	 *         network with the given BSSID, else false.
	 */
	public boolean bssidSeen(String protocol, String BSSID) {
		String countQuery = "SELECT  * FROM " + AttackEntry.TABLE_NAME + " NATURAL JOIN " + NetworkEntry.TABLE_NAME + " WHERE "
				+ AttackEntry.COLUMN_NAME_PROTOCOL + " = " + "'" + protocol + "'" + " AND " + NetworkEntry.COLUMN_NAME_BSSID + " = " + "'" + BSSID + "'";
		SQLiteDatabase db = this.getReadableDatabase();
		Cursor cursor = db.rawQuery(countQuery, null);
		int result = cursor.getCount();
		cursor.close();
		db.close();
		return result > 0;
	}

	/**
	 * Deletes all records from {@link #PacketEntry.TABLE_NAME}.
	 */
	public void clearData() {
		SQLiteDatabase db = this.getReadableDatabase();
		db.delete(PacketEntry.TABLE_NAME, null, null);
		db.delete(AttackEntry.TABLE_NAME, null, null);
		db.close();
	}

	/**
	 * Deletes all records from {@link #PacketEntry.TABLE_NAME} with a specific BSSID.
	 * 
	 * @param bssid
	 *            The BSSID to match against.
	 */
	public void deleteByBSSID(String bssid) {
		SQLiteDatabase db = this.getReadableDatabase();
		db.delete(NetworkEntry.TABLE_NAME, NetworkEntry.COLUMN_NAME_BSSID + " = ?", new String[] { bssid });
		db.delete(AttackEntry.TABLE_NAME, AttackEntry.COLUMN_NAME_BSSID + " = ?", new String[] { bssid });
		db.close();
	}

	/**
	 * Deletes all records from {@link #PacketEntry.TABLE_NAME} with a time stamp smaller
	 * then the given
	 * 
	 * @param date
	 *            A Date represented in milliseconds.
	 */
	public void deleteByDate(long date) {
		SQLiteDatabase db = this.getReadableDatabase();
		String deleteQuery = "DELETE  FROM " + PacketEntry.TABLE_NAME + " WHERE " + PacketEntry.COLUMN_NAME_PACKET_TIMESTAMP + " < " + date;
		db.execSQL(deleteQuery);
		db.close();
	}

	/**
	 * Returns a String array with all BSSIDs stored in the database.
	 * 
	 * @return String[] of all recorded BSSIDs.
	 */
	public String[] getAllBSSIDS() {
		String selectQuery = "SELECT  * FROM " + NetworkEntry.TABLE_NAME;
		SQLiteDatabase db = this.getReadableDatabase();
		Cursor cursor = db.rawQuery(selectQuery, null);
		String[] bssidList = new String[cursor.getCount()];
		int counter = 0;
		// looping through all rows and adding to list
		if (cursor.moveToFirst()) {
			do {
				bssidList[counter] = cursor.getString(0);
				counter++;
			} while (cursor.moveToNext());
		}
		cursor.close();
		db.close();
		return bssidList;
	}

	/**
	 * Gets all received {@link Record Records} for every attack identified by
	 * its attack id and ordered by date.
	 * 
	 * @return A ArrayList with all received {@link Record Records} for each
	 *         attack id in the Database.
	 */
	public ArrayList<Record> getAllReceivedRecordsOfEachAttack() {
		ArrayList<Record> recordList = new ArrayList<Record>();
		String selectQuery = "SELECT  * FROM " + PacketEntry.TABLE_NAME + " NATURAL JOIN " + AttackEntry.TABLE_NAME + " NATURAL JOIN "
				+ NetworkEntry.TABLE_NAME + " WHERE " + PacketEntry.COLUMN_NAME_TYPE + "='RECEIVE'" + " ORDER BY " + PacketEntry.COLUMN_NAME_PACKET_TIMESTAMP;
		SQLiteDatabase db = this.getReadableDatabase();
		Cursor cursor = db.rawQuery(selectQuery, null);

		// looping through all rows and adding to list
		if (cursor.moveToFirst()) {
			do {
				Record record = createRecord(cursor);
				// Adding record to list
				recordList.add(record);
			} while (cursor.moveToNext());
		}
		cursor.close();

		// return record list
		db.close();
		return recordList;
	}

	/**
	 * Gets all {@link Record Records} saved in the database.
	 * 
	 * @return A ArrayList of all the {@link Record Records} in the Database.
	 */
	public ArrayList<Record> getAllRecords() {
		ArrayList<Record> recordList = new ArrayList<Record>();
		// Select All Query
		String selectQuery = "SELECT  * FROM " + PacketEntry.TABLE_NAME + " NATURAL JOIN " + AttackEntry.TABLE_NAME + " JOIN " + NetworkEntry.TABLE_NAME
				+ " USING (_bssid)";

		SQLiteDatabase db = this.getWritableDatabase();
		Cursor cursor = db.rawQuery(selectQuery, null);

		Log.i("Database", "Start loop");
		// looping through all rows and adding to list
		if (cursor.moveToFirst()) {
			do {
				Log.i("Database", "Add Record");
				Record record = createRecord(cursor);
				// Adding record to list
				recordList.add(record);
			} while (cursor.moveToNext());
		}
		cursor.close();
		db.close();
		// return record list
		return recordList;
	}

	/**
	 * Determines the number of different attack_ids in the database.
	 * 
	 * @return The number of different attack_ids in the database.
	 */
	public int getAttackCount() {
		String countQuery = "SELECT  * FROM " + AttackEntry.TABLE_NAME;
		SQLiteDatabase db = this.getReadableDatabase();
		Cursor cursor = db.rawQuery(countQuery, null);
		int result = cursor.getCount();
		cursor.close();

		// return count
		db.close();
		return result;
	}

	/**
	 * Determines the number of different attack_ids for a specific protocol in
	 * the database.
	 * 
	 * @param protocol
	 *            The String representation of the
	 *            {@link de.tudarmstadt.informatik.hostage.protocol.Protocol
	 *            Protocol}
	 * @return The number of different attack_ids in the database.
	 */
	public int getAttackPerProtocolCount(String protocol) {
		String countQuery = "SELECT  * FROM " + AttackEntry.TABLE_NAME + " WHERE " + AttackEntry.COLUMN_NAME_PROTOCOL + " = " + "'" + protocol + "'";
		SQLiteDatabase db = this.getReadableDatabase();
		Cursor cursor = db.rawQuery(countQuery, null);
		int result = cursor.getCount();
		cursor.close();

		// return count
		db.close();
		return result;
	}

	/**
	 * Determines the highest attack id stored in the database.
	 * 
	 * @return The highest attack id stored in the database.
	 */
	public long getHighestAttackId() {
		String selectQuery = "SELECT MAX(" + AttackEntry.COLUMN_NAME_ATTACK_ID + ") FROM " + AttackEntry.TABLE_NAME;
		SQLiteDatabase db = this.getReadableDatabase();
		Cursor cursor = db.rawQuery(selectQuery, null);
		int result;

		if (cursor.moveToFirst()) {
			result = cursor.getInt(0);
		} else {
			result = -1;
		}
		cursor.close();
		db.close();
		return result;
	}

	public ArrayList<HashMap<String, Object>> getNetworkInformation() {
		String selectQuery = "SELECT  * FROM " + NetworkEntry.TABLE_NAME;
		SQLiteDatabase db = this.getReadableDatabase();
		Cursor cursor = db.rawQuery(selectQuery, null);

		ArrayList<HashMap<String, Object>> networkInformation = new ArrayList<HashMap<String, Object>>();

		// looping through all rows and adding to list
		if (cursor.moveToFirst()) {
			do {
				HashMap<String, Object> values = new HashMap<String, Object>();
				values.put(NetworkEntry.COLUMN_NAME_BSSID, cursor.getString(0));
				values.put(NetworkEntry.COLUMN_NAME_SSID, cursor.getString(1));
				values.put(NetworkEntry.COLUMN_NAME_LATITUDE, Double.parseDouble(cursor.getString(2)));
				values.put(NetworkEntry.COLUMN_NAME_LONGITUDE, Double.parseDouble(cursor.getString(3)));
				values.put(NetworkEntry.COLUMN_NAME_ACCURACY, Float.parseFloat(cursor.getString(4)));
				values.put(NetworkEntry.COLUMN_NAME_GEO_TIMESTAMP, cursor.getLong(5));
				networkInformation.add(values);
			} while (cursor.moveToNext());
		}

		cursor.close();
		db.close();
		return networkInformation;
	}

	/**
	 * Gets a single {@link Record} with the given ID from the database.
	 * 
	 * @param id
	 *            The ID of the {@link Record};
	 * @return The {@link Record}.
	 */
	public Record getRecord(int id) {
		String selectQuery = "SELECT  * FROM " + PacketEntry.TABLE_NAME + " NATURAL JOIN " + AttackEntry.TABLE_NAME + " NATURAL JOIN "
				+ NetworkEntry.TABLE_NAME + " WHERE " + PacketEntry.COLUMN_NAME_ID + " = " + id;
		SQLiteDatabase db = this.getReadableDatabase();

		Cursor cursor = db.rawQuery(selectQuery, null);
		Record record = null;
		if (cursor.moveToFirst()) {
			record = createRecord(cursor);
		}

		cursor.close();
		db.close();
		// return contact
		return record;
	}

	/**
	 * Determines the number of {@link Record Records} in the database.
	 * 
	 * @return The number of {@link Record Records} in the database.
	 */
	public int getRecordCount() {
		String countQuery = "SELECT  * FROM " + PacketEntry.TABLE_NAME;
		SQLiteDatabase db = this.getReadableDatabase();
		Cursor cursor = db.rawQuery(countQuery, null);
		int result = cursor.getCount();
		cursor.close();

		// return count
		db.close();
		return result;
	}

	/**
	 * Gets a single {@link Record} with the given attack id from the database.
	 * 
	 * @param attack_id
	 *            The attack id of the {@link Record};
	 * @return The {@link Record}.
	 */
	public Record getRecordOfAttackId(long attack_id) {
		String selectQuery = "SELECT  * FROM " + PacketEntry.TABLE_NAME + " NATURAL JOIN " + AttackEntry.TABLE_NAME + " NATURAL JOIN "
				+ NetworkEntry.TABLE_NAME + " WHERE " + AttackEntry.COLUMN_NAME_ATTACK_ID + " = " + attack_id + " GROUP BY "
				+ AttackEntry.COLUMN_NAME_ATTACK_ID;
		SQLiteDatabase db = this.getReadableDatabase();
		Cursor cursor = db.rawQuery(selectQuery, null);
		Record record = null;

		if (cursor.moveToFirst()) {
			record = createRecord(cursor);
		}
		cursor.close();

		// return record list
		db.close();
		return record;
	}

	/**
	 * Gets a representative {@link Record} for every attack identified by its
	 * attack id.
	 * 
	 * @return A ArrayList with one {@link Record Records} for each attack id in
	 *         the Database.
	 */
	public ArrayList<Record> getRecordOfEachAttack() {
		ArrayList<Record> recordList = new ArrayList<Record>();
		String selectQuery = "SELECT  * FROM " + PacketEntry.TABLE_NAME + " NATURAL JOIN " + AttackEntry.TABLE_NAME + " NATURAL JOIN "
				+ NetworkEntry.TABLE_NAME + " GROUP BY " + AttackEntry.COLUMN_NAME_ATTACK_ID;
		SQLiteDatabase db = this.getReadableDatabase();
		Cursor cursor = db.rawQuery(selectQuery, null);

		// looping through all rows and adding to list
		if (cursor.moveToFirst()) {
			do {
				Record record = createRecord(cursor);
				// Adding record to list
				recordList.add(record);
			} while (cursor.moveToNext());
		}
		cursor.close();

		// return record list
		db.close();
		return recordList;
	}

	/**
	 * Gets a representative {@link Record} for every attack with a higher
	 * attack id than the specified.
	 * 
	 * @param attack_id
	 *            The attack id to match the query against.
	 * @return A ArrayList with one {@link Record Records} for each attack id
	 *         higher than the given.
	 */
	public ArrayList<Record> getRecordOfEachAttack(long attack_id) {
		ArrayList<Record> recordList = new ArrayList<Record>();
		String selectQuery = "SELECT  * FROM " + PacketEntry.TABLE_NAME + " NATURAL JOIN " + AttackEntry.TABLE_NAME + " NATURAL JOIN "
				+ NetworkEntry.TABLE_NAME + " WHERE " + AttackEntry.COLUMN_NAME_ATTACK_ID + " > " + attack_id + " GROUP BY "
				+ AttackEntry.COLUMN_NAME_ATTACK_ID;
		SQLiteDatabase db = this.getReadableDatabase();
		Cursor cursor = db.rawQuery(selectQuery, null);

		// looping through all rows and adding to list
		if (cursor.moveToFirst()) {
			do {
				Record record = createRecord(cursor);
				// Adding record to list
				recordList.add(record);
			} while (cursor.moveToNext());
		}
		cursor.close();

		// return count
		db.close();
		return recordList;
	}

	/**
	 * Determines the smallest attack id stored in the database.
	 * 
	 * @return The smallest attack id stored in the database.
	 */
	public long getSmallestAttackId() {
		String selectQuery = "SELECT MIN(" + AttackEntry.COLUMN_NAME_ATTACK_ID + ") FROM " + AttackEntry.TABLE_NAME;
		SQLiteDatabase db = this.getReadableDatabase();
		Cursor cursor = db.rawQuery(selectQuery, null);
		int result;

		if (cursor.moveToFirst()) {
			result = cursor.getInt(0);
		} else {
			result = -1;
		}
		cursor.close();
		db.close();
		return result;
	}

	/**
	 * Gets the last recorded SSID to a given BSSID.
	 * 
	 * @param bssid
	 *            The BSSID to match against.
	 * @return A String of the last SSID or null if the BSSID is not in the
	 *         database.
	 */
	public String getSSID(String bssid) {
		String selectQuery = "SELECT " + NetworkEntry.COLUMN_NAME_SSID + " FROM " + NetworkEntry.TABLE_NAME + " WHERE " + NetworkEntry.COLUMN_NAME_BSSID
				+ " = " + "'" + bssid + "'";
		SQLiteDatabase db = this.getReadableDatabase();
		Cursor cursor = db.rawQuery(selectQuery, null);
		String ssid = null;
		if (cursor.moveToFirst()) {
			ssid = cursor.getString(0);
		}
		cursor.close();
		db.close();
		return ssid;
	}

	public void updateNetworkInformation(ArrayList<HashMap<String, Object>> networkInformation) {
		Log.i("DatabaseHandler", "Starte updating");
		for (HashMap<String, Object> values : networkInformation) {
			updateNetworkInformation(values);
		}
	}

	public void updateNetworkInformation(HashMap<String, Object> networkInformation) {
		SQLiteDatabase db = this.getReadableDatabase();
		String bssid = (String) networkInformation.get(NetworkEntry.COLUMN_NAME_BSSID);
		String bssidQuery = "SELECT  * FROM " + NetworkEntry.TABLE_NAME + " WHERE " + NetworkEntry.COLUMN_NAME_BSSID + " = " + "'" + bssid + "'";
		Cursor cursor = db.rawQuery(bssidQuery, null);
		int result = cursor.getCount();
		if (cursor != null && cursor.moveToFirst()
				&& (result <= 0 || cursor.getLong(5) < (Long) networkInformation.get(NetworkEntry.COLUMN_NAME_GEO_TIMESTAMP)))
			;
		{
			ContentValues bssidValues = new ContentValues();
			bssidValues.put(NetworkEntry.COLUMN_NAME_BSSID, bssid);
			bssidValues.put(NetworkEntry.COLUMN_NAME_SSID, (String) networkInformation.get(NetworkEntry.COLUMN_NAME_SSID));
			bssidValues.put(NetworkEntry.COLUMN_NAME_LATITUDE, (double) (Double) networkInformation.get(NetworkEntry.COLUMN_NAME_LATITUDE));
			bssidValues.put(NetworkEntry.COLUMN_NAME_LONGITUDE, (double) (Double) networkInformation.get(NetworkEntry.COLUMN_NAME_LONGITUDE));
			bssidValues.put(NetworkEntry.COLUMN_NAME_ACCURACY, (float) (Float) networkInformation.get(NetworkEntry.COLUMN_NAME_ACCURACY));
			bssidValues.put(NetworkEntry.COLUMN_NAME_GEO_TIMESTAMP, (Long) networkInformation.get(NetworkEntry.COLUMN_NAME_GEO_TIMESTAMP));
			db.insertWithOnConflict(NetworkEntry.TABLE_NAME, null, bssidValues, SQLiteDatabase.CONFLICT_REPLACE);
		}
		cursor.close();
		db.close();
	}

	/**
	 * Creates a {@link Record} from a Cursor. If the cursor does not show to a
	 * valid data structure a runtime exception is thrown.
	 * 
	 * @param cursor
	 * @return Returns the created {@link Record} .
	 */
	private Record createRecord(Cursor cursor) {
		Record record = new Record();
		record.setId(Integer.parseInt(cursor.getString(0)));
		record.setAttack_id(cursor.getLong(1));
		record.setType(TYPE.valueOf(cursor.getString(2)));
		record.setTimestamp(cursor.getLong(3));
		record.setPacket(cursor.getString(4));
		record.setProtocol(cursor.getString(5));
		record.setExternalIP(cursor.getString(6));

		record.setLocalIP(cursor.getString(7));
		record.setLocalPort(Integer.parseInt(cursor.getString(8)));

		record.setRemoteIP(cursor.getString(9));
		record.setRemotePort(Integer.parseInt(cursor.getString(10)));

		record.setBssid(cursor.getString(11));
		record.setSsid(cursor.getString(12));
		record.setLatitude(Double.parseDouble(cursor.getString(13)));
		record.setLongitude(Double.parseDouble(cursor.getString(14)));
		record.setAccuracy(Float.parseFloat(cursor.getString(15)));
		record.setTimestampLocation(cursor.getLong(16));

		return record;
	}

}