[thirdparty/strongswan.git] / src / frontends / android / app / src / main / java / org / strongswan / android / data / VpnProfileDataSource.java

/*
 * Copyright (C) 2012-2018 Tobias Brunner
 * Copyright (C) 2012 Giuliano Grassi
 * Copyright (C) 2012 Ralf Sager
 * HSR Hochschule fuer Technik Rapperswil
 *
 * 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 2 of the License, or (at your
 * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
 *
 * 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.
 */

package org.strongswan.android.data;

import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.SQLException;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.database.sqlite.SQLiteQueryBuilder;
import android.util.Log;

import java.util.ArrayList;
import java.util.List;
import java.util.UUID;

public class VpnProfileDataSource
{
	private static final String TAG = VpnProfileDataSource.class.getSimpleName();
	public static final String KEY_ID = "_id";
	public static final String KEY_UUID = "_uuid";
	public static final String KEY_NAME = "name";
	public static final String KEY_GATEWAY = "gateway";
	public static final String KEY_VPN_TYPE = "vpn_type";
	public static final String KEY_USERNAME = "username";
	public static final String KEY_PASSWORD = "password";
	public static final String KEY_CERTIFICATE = "certificate";
	public static final String KEY_USER_CERTIFICATE = "user_certificate";
	public static final String KEY_MTU = "mtu";
	public static final String KEY_PORT = "port";
	public static final String KEY_SPLIT_TUNNELING = "split_tunneling";
	public static final String KEY_LOCAL_ID = "local_id";
	public static final String KEY_REMOTE_ID = "remote_id";
	public static final String KEY_EXCLUDED_SUBNETS = "excluded_subnets";
	public static final String KEY_INCLUDED_SUBNETS = "included_subnets";
	public static final String KEY_SELECTED_APPS = "selected_apps";
	public static final String KEY_SELECTED_APPS_LIST = "selected_apps_list";
	public static final String KEY_NAT_KEEPALIVE = "nat_keepalive";
	public static final String KEY_FLAGS = "flags";
	public static final String KEY_IKE_PROPOSAL = "ike_proposal";
	public static final String KEY_ESP_PROPOSAL = "esp_proposal";

	private DatabaseHelper mDbHelper;
	private SQLiteDatabase mDatabase;
	private final Context mContext;

	private static final String DATABASE_NAME = "strongswan.db";
	private static final String TABLE_VPNPROFILE = "vpnprofile";

	private static final int DATABASE_VERSION = 16;

	public static final DbColumn[] COLUMNS = new DbColumn[] {
								new DbColumn(KEY_ID, "INTEGER PRIMARY KEY AUTOINCREMENT", 1),
								new DbColumn(KEY_UUID, "TEXT UNIQUE", 9),
								new DbColumn(KEY_NAME, "TEXT NOT NULL", 1),
								new DbColumn(KEY_GATEWAY, "TEXT NOT NULL", 1),
								new DbColumn(KEY_VPN_TYPE, "TEXT NOT NULL", 3),
								new DbColumn(KEY_USERNAME, "TEXT", 1),
								new DbColumn(KEY_PASSWORD, "TEXT", 1),
								new DbColumn(KEY_CERTIFICATE, "TEXT", 1),
								new DbColumn(KEY_USER_CERTIFICATE, "TEXT", 2),
								new DbColumn(KEY_MTU, "INTEGER", 5),
								new DbColumn(KEY_PORT, "INTEGER", 5),
								new DbColumn(KEY_SPLIT_TUNNELING, "INTEGER", 7),
								new DbColumn(KEY_LOCAL_ID, "TEXT", 8),
								new DbColumn(KEY_REMOTE_ID, "TEXT", 8),
								new DbColumn(KEY_EXCLUDED_SUBNETS, "TEXT", 10),
								new DbColumn(KEY_INCLUDED_SUBNETS, "TEXT", 11),
								new DbColumn(KEY_SELECTED_APPS, "INTEGER", 12),
								new DbColumn(KEY_SELECTED_APPS_LIST, "TEXT", 12),
								new DbColumn(KEY_NAT_KEEPALIVE, "INTEGER", 13),
								new DbColumn(KEY_FLAGS, "INTEGER", 14),
								new DbColumn(KEY_IKE_PROPOSAL, "TEXT", 15),
								new DbColumn(KEY_ESP_PROPOSAL, "TEXT", 15),
							};

	private static final String[] ALL_COLUMNS = getColumns(DATABASE_VERSION);

	private static String getDatabaseCreate(int version)
	{
		boolean first = true;
		StringBuilder create = new StringBuilder("CREATE TABLE ");
		create.append(TABLE_VPNPROFILE);
		create.append(" (");
		for (DbColumn column : COLUMNS)
		{
			if (column.Since <= version)
			{
				if (!first)
				{
					create.append(",");
				}
				first = false;
				create.append(column.Name);
				create.append(" ");
				create.append(column.Type);
			}
		}
		create.append(");");
		return create.toString();
	}

	private static String[] getColumns(int version)
	{
		ArrayList<String> columns = new ArrayList<>();
		for (DbColumn column : COLUMNS)
		{
			if (column.Since <= version)
			{
				columns.add(column.Name);
			}
		}
		return columns.toArray(new String[0]);
	}

	private static class DatabaseHelper extends SQLiteOpenHelper
	{
		public DatabaseHelper(Context context)
		{
			super(context, DATABASE_NAME, null, DATABASE_VERSION);
		}

		@Override
		public void onCreate(SQLiteDatabase database)
		{
			database.execSQL(getDatabaseCreate(DATABASE_VERSION));
		}

		@Override
		public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion)
		{
			Log.w(TAG, "Upgrading database from version " + oldVersion +
				  " to " + newVersion);
			if (oldVersion < 2)
			{
				db.execSQL("ALTER TABLE " + TABLE_VPNPROFILE + " ADD " + KEY_USER_CERTIFICATE +
						   " TEXT;");
			}
			if (oldVersion < 3)
			{
				db.execSQL("ALTER TABLE " + TABLE_VPNPROFILE + " ADD " + KEY_VPN_TYPE +
						   " TEXT DEFAULT '';");
			}
			if (oldVersion < 4)
			{	/* remove NOT NULL constraint from username column */
				updateColumns(db, 4);
			}
			if (oldVersion < 5)
			{
				db.execSQL("ALTER TABLE " + TABLE_VPNPROFILE + " ADD " + KEY_MTU +
						   " INTEGER;");
			}
			if (oldVersion < 6)
			{
				db.execSQL("ALTER TABLE " + TABLE_VPNPROFILE + " ADD " + KEY_PORT +
						   " INTEGER;");
			}
			if (oldVersion < 7)
			{
				db.execSQL("ALTER TABLE " + TABLE_VPNPROFILE + " ADD " + KEY_SPLIT_TUNNELING +
						   " INTEGER;");
			}
			if (oldVersion < 8)
			{
				db.execSQL("ALTER TABLE " + TABLE_VPNPROFILE + " ADD " + KEY_LOCAL_ID +
						   " TEXT;");
				db.execSQL("ALTER TABLE " + TABLE_VPNPROFILE + " ADD " + KEY_REMOTE_ID +
						   " TEXT;");
			}
			if (oldVersion < 9)
			{
				db.execSQL("ALTER TABLE " + TABLE_VPNPROFILE + " ADD " + KEY_UUID +
						   " TEXT;");
				updateColumns(db, 9);
			}
			if (oldVersion < 10)
			{
				db.execSQL("ALTER TABLE " + TABLE_VPNPROFILE + " ADD " + KEY_EXCLUDED_SUBNETS +
						   " TEXT;");
			}
			if (oldVersion < 11)
			{
				db.execSQL("ALTER TABLE " + TABLE_VPNPROFILE + " ADD " + KEY_INCLUDED_SUBNETS +
						   " TEXT;");
			}
			if (oldVersion < 12)
			{
				db.execSQL("ALTER TABLE " + TABLE_VPNPROFILE + " ADD " + KEY_SELECTED_APPS +
						   " INTEGER;");
				db.execSQL("ALTER TABLE " + TABLE_VPNPROFILE + " ADD " + KEY_SELECTED_APPS_LIST +
						   " TEXT;");
			}
			if (oldVersion < 13)
			{
				db.execSQL("ALTER TABLE " + TABLE_VPNPROFILE + " ADD " + KEY_NAT_KEEPALIVE +
						   " INTEGER;");
			}
			if (oldVersion < 14)
			{
				db.execSQL("ALTER TABLE " + TABLE_VPNPROFILE + " ADD " + KEY_FLAGS +
						   " INTEGER;");
			}
			if (oldVersion < 15)
			{
				db.execSQL("ALTER TABLE " + TABLE_VPNPROFILE + " ADD " + KEY_IKE_PROPOSAL +
						   " TEXT;");
				db.execSQL("ALTER TABLE " + TABLE_VPNPROFILE + " ADD " + KEY_ESP_PROPOSAL +
						   " TEXT;");
			}
			if (oldVersion < 16)
			{	/* add a UUID to all entries that haven't one yet */
				db.beginTransaction();
				try
				{
					Cursor cursor = db.query(TABLE_VPNPROFILE, ALL_COLUMNS, KEY_UUID + " is NULL", null, null, null, null);
					for (cursor.moveToFirst(); !cursor.isAfterLast(); cursor.moveToNext())
					{
						ContentValues values = new ContentValues();
						values.put(KEY_UUID, UUID.randomUUID().toString());
						db.update(TABLE_VPNPROFILE, values, KEY_ID + " = " + cursor.getLong(cursor.getColumnIndex(KEY_ID)), null);
					}
					cursor.close();
					db.setTransactionSuccessful();
				}
				finally
				{
					db.endTransaction();
				}
			}
		}

		private void updateColumns(SQLiteDatabase db, int version)
		{
			db.beginTransaction();
			try
			{
				db.execSQL("ALTER TABLE " + TABLE_VPNPROFILE + " RENAME TO tmp_" + TABLE_VPNPROFILE + ";");
				db.execSQL(getDatabaseCreate(version));
				StringBuilder insert = new StringBuilder("INSERT INTO " + TABLE_VPNPROFILE + " SELECT ");
				SQLiteQueryBuilder.appendColumns(insert, getColumns(version));
				db.execSQL(insert.append(" FROM tmp_" + TABLE_VPNPROFILE + ";").toString());
				db.execSQL("DROP TABLE tmp_" + TABLE_VPNPROFILE + ";");
				db.setTransactionSuccessful();
			}
			finally
			{
				db.endTransaction();
			}
		}
	}

	/**
	 * Construct a new VPN profile data source. The context is used to
	 * open/create the database.
	 * @param context context used to access the database
	 */
	public VpnProfileDataSource(Context context)
	{
		this.mContext = context;
	}

	/**
	 * Open the VPN profile data source. The database is automatically created
	 * if it does not yet exist. If that fails an exception is thrown.
	 * @return itself (allows to chain initialization calls)
	 * @throws SQLException if the database could not be opened or created
	 */
	public VpnProfileDataSource open() throws SQLException
	{
		if (mDbHelper == null)
		{
			mDbHelper = new DatabaseHelper(mContext);
			mDatabase = mDbHelper.getWritableDatabase();
		}
		return this;
	}

	/**
	 * Close the data source.
	 */
	public void close()
	{
		if (mDbHelper != null)
		{
			mDbHelper.close();
			mDbHelper = null;
		}
	}

	/**
	 * Insert the given VPN profile into the database.  On success the Id of
	 * the object is updated and the object returned.
	 *
	 * @param profile the profile to add
	 * @return the added VPN profile or null, if failed
	 */
	public VpnProfile insertProfile(VpnProfile profile)
	{
		ContentValues values = ContentValuesFromVpnProfile(profile);
		long insertId = mDatabase.insert(TABLE_VPNPROFILE, null, values);
		if (insertId == -1)
		{
			return null;
		}
		profile.setId(insertId);
		return profile;
	}

	/**
	 * Updates the given VPN profile in the database.
	 * @param profile the profile to update
	 * @return true if update succeeded, false otherwise
	 */
	public boolean updateVpnProfile(VpnProfile profile)
	{
		long id = profile.getId();
		ContentValues values = ContentValuesFromVpnProfile(profile);
		return mDatabase.update(TABLE_VPNPROFILE, values, KEY_ID + " = " + id, null) > 0;
	}

	/**
	 * Delete the given VPN profile from the database.
	 * @param profile the profile to delete
	 * @return true if deleted, false otherwise
	 */
	public boolean deleteVpnProfile(VpnProfile profile)
	{
		long id = profile.getId();
		return mDatabase.delete(TABLE_VPNPROFILE, KEY_ID + " = " + id, null) > 0;
	}

	/**
	 * Get a single VPN profile from the database.
	 * @param id the ID of the VPN profile
	 * @return the profile or null, if not found
	 */
	public VpnProfile getVpnProfile(long id)
	{
		VpnProfile profile = null;
		Cursor cursor = mDatabase.query(TABLE_VPNPROFILE, ALL_COLUMNS,
										KEY_ID + "=" + id, null, null, null, null);
		if (cursor.moveToFirst())
		{
			profile = VpnProfileFromCursor(cursor);
		}
		cursor.close();
		return profile;
	}

	/**
	 * Get a single VPN profile from the database by its UUID.
	 * @param uuid the UUID of the VPN profile
	 * @return the profile or null, if not found
	 */
	public VpnProfile getVpnProfile(UUID uuid)
	{
		VpnProfile profile = null;
		Cursor cursor = mDatabase.query(TABLE_VPNPROFILE, ALL_COLUMNS,
										KEY_UUID + "='" + uuid.toString() + "'", null, null, null, null);
		if (cursor.moveToFirst())
		{
			profile = VpnProfileFromCursor(cursor);
		}
		cursor.close();
		return profile;
	}

	/**
	 * Get a list of all VPN profiles stored in the database.
	 * @return list of VPN profiles
	 */
	public List<VpnProfile> getAllVpnProfiles()
	{
		List<VpnProfile> vpnProfiles = new ArrayList<VpnProfile>();

		Cursor cursor = mDatabase.query(TABLE_VPNPROFILE, ALL_COLUMNS, null, null, null, null, null);
		cursor.moveToFirst();
		while (!cursor.isAfterLast())
		{
			VpnProfile vpnProfile = VpnProfileFromCursor(cursor);
			vpnProfiles.add(vpnProfile);
			cursor.moveToNext();
		}
		cursor.close();
		return vpnProfiles;
	}

	private VpnProfile VpnProfileFromCursor(Cursor cursor)
	{
		VpnProfile profile = new VpnProfile();
		profile.setId(cursor.getLong(cursor.getColumnIndex(KEY_ID)));
		profile.setUUID(UUID.fromString(cursor.getString(cursor.getColumnIndex(KEY_UUID))));
		profile.setName(cursor.getString(cursor.getColumnIndex(KEY_NAME)));
		profile.setGateway(cursor.getString(cursor.getColumnIndex(KEY_GATEWAY)));
		profile.setVpnType(VpnType.fromIdentifier(cursor.getString(cursor.getColumnIndex(KEY_VPN_TYPE))));
		profile.setUsername(cursor.getString(cursor.getColumnIndex(KEY_USERNAME)));
		profile.setPassword(cursor.getString(cursor.getColumnIndex(KEY_PASSWORD)));
		profile.setCertificateAlias(cursor.getString(cursor.getColumnIndex(KEY_CERTIFICATE)));
		profile.setUserCertificateAlias(cursor.getString(cursor.getColumnIndex(KEY_USER_CERTIFICATE)));
		profile.setMTU(getInt(cursor, cursor.getColumnIndex(KEY_MTU)));
		profile.setPort(getInt(cursor, cursor.getColumnIndex(KEY_PORT)));
		profile.setSplitTunneling(getInt(cursor, cursor.getColumnIndex(KEY_SPLIT_TUNNELING)));
		profile.setLocalId(cursor.getString(cursor.getColumnIndex(KEY_LOCAL_ID)));
		profile.setRemoteId(cursor.getString(cursor.getColumnIndex(KEY_REMOTE_ID)));
		profile.setExcludedSubnets(cursor.getString(cursor.getColumnIndex(KEY_EXCLUDED_SUBNETS)));
		profile.setIncludedSubnets(cursor.getString(cursor.getColumnIndex(KEY_INCLUDED_SUBNETS)));
		profile.setSelectedAppsHandling(getInt(cursor, cursor.getColumnIndex(KEY_SELECTED_APPS)));
		profile.setSelectedApps(cursor.getString(cursor.getColumnIndex(KEY_SELECTED_APPS_LIST)));
		profile.setNATKeepAlive(getInt(cursor, cursor.getColumnIndex(KEY_NAT_KEEPALIVE)));
		profile.setFlags(getInt(cursor, cursor.getColumnIndex(KEY_FLAGS)));
		profile.setIkeProposal(cursor.getString(cursor.getColumnIndex(KEY_IKE_PROPOSAL)));
		profile.setEspProposal(cursor.getString(cursor.getColumnIndex(KEY_ESP_PROPOSAL)));
		return profile;
	}

	private ContentValues ContentValuesFromVpnProfile(VpnProfile profile)
	{
		ContentValues values = new ContentValues();
		values.put(KEY_UUID, profile.getUUID().toString());
		values.put(KEY_NAME, profile.getName());
		values.put(KEY_GATEWAY, profile.getGateway());
		values.put(KEY_VPN_TYPE, profile.getVpnType().getIdentifier());
		values.put(KEY_USERNAME, profile.getUsername());
		values.put(KEY_PASSWORD, profile.getPassword());
		values.put(KEY_CERTIFICATE, profile.getCertificateAlias());
		values.put(KEY_USER_CERTIFICATE, profile.getUserCertificateAlias());
		values.put(KEY_MTU, profile.getMTU());
		values.put(KEY_PORT, profile.getPort());
		values.put(KEY_SPLIT_TUNNELING, profile.getSplitTunneling());
		values.put(KEY_LOCAL_ID, profile.getLocalId());
		values.put(KEY_REMOTE_ID, profile.getRemoteId());
		values.put(KEY_EXCLUDED_SUBNETS, profile.getExcludedSubnets());
		values.put(KEY_INCLUDED_SUBNETS, profile.getIncludedSubnets());
		values.put(KEY_SELECTED_APPS, profile.getSelectedAppsHandling().getValue());
		values.put(KEY_SELECTED_APPS_LIST, profile.getSelectedApps());
		values.put(KEY_NAT_KEEPALIVE, profile.getNATKeepAlive());
		values.put(KEY_FLAGS, profile.getFlags());
		values.put(KEY_IKE_PROPOSAL, profile.getIkeProposal());
		values.put(KEY_ESP_PROPOSAL, profile.getEspProposal());
		return values;
	}

	private Integer getInt(Cursor cursor, int columnIndex)
	{
		return cursor.isNull(columnIndex) ? null : cursor.getInt(columnIndex);
	}

	private static class DbColumn
	{
		public final String Name;
		public final String Type;
		public final Integer Since;

		public DbColumn(String name, String type, Integer since)
		{
			Name = name;
			Type = type;
			Since = since;
		}
	}
}
Commit	Line	Data
d799cbf6	1	/*
93489acc	2	* Copyright (C) 2012-2018 Tobias Brunner
d799cbf6 TB	3	* Copyright (C) 2012 Giuliano Grassi
d799cbf6 TB	4	* Copyright (C) 2012 Ralf Sager
89149dbb	5	* HSR Hochschule fuer Technik Rapperswil
d799cbf6 TB	6	*
	7	* This program is free software; you can redistribute it and/or modify it
	8	* under the terms of the GNU General Public License as published by the
	9	* Free Software Foundation; either version 2 of the License, or (at your
	10	* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
	11	*
	12	* This program is distributed in the hope that it will be useful, but
	13	* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
	14	* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
	15	* for more details.
	16	*/
	17
	18	package org.strongswan.android.data;
	19
d799cbf6 TB	20	import android.content.ContentValues;
	21	import android.content.Context;
	22	import android.database.Cursor;
	23	import android.database.SQLException;
	24	import android.database.sqlite.SQLiteDatabase;
	25	import android.database.sqlite.SQLiteOpenHelper;
3f9e90f6	26	import android.database.sqlite.SQLiteQueryBuilder;
d799cbf6 TB	27	import android.util.Log;
d799cbf6 TB	28
13ead876 TB	29	import java.util.ArrayList;
	30	import java.util.List;
	31	import java.util.UUID;
	32
d799cbf6 TB	33	public class VpnProfileDataSource
	34	{
	35	private static final String TAG = VpnProfileDataSource.class.getSimpleName();
	36	public static final String KEY_ID = "_id";
c4ab9af7	37	public static final String KEY_UUID = "_uuid";
d799cbf6 TB	38	public static final String KEY_NAME = "name";
d799cbf6 TB	39	public static final String KEY_GATEWAY = "gateway";
48f51d94	40	public static final String KEY_VPN_TYPE = "vpn_type";
d799cbf6 TB	41	public static final String KEY_USERNAME = "username";
	42	public static final String KEY_PASSWORD = "password";
	43	public static final String KEY_CERTIFICATE = "certificate";
e09f4120	44	public static final String KEY_USER_CERTIFICATE = "user_certificate";
7e2a6c4a	45	public static final String KEY_MTU = "mtu";
5b11855f	46	public static final String KEY_PORT = "port";
f3d8da76	47	public static final String KEY_SPLIT_TUNNELING = "split_tunneling";
89149dbb TB	48	public static final String KEY_LOCAL_ID = "local_id";
89149dbb TB	49	public static final String KEY_REMOTE_ID = "remote_id";
13ead876	50	public static final String KEY_EXCLUDED_SUBNETS = "excluded_subnets";
a9875259	51	public static final String KEY_INCLUDED_SUBNETS = "included_subnets";
43b33f07 TB	52	public static final String KEY_SELECTED_APPS = "selected_apps";
43b33f07 TB	53	public static final String KEY_SELECTED_APPS_LIST = "selected_apps_list";
a2830231	54	public static final String KEY_NAT_KEEPALIVE = "nat_keepalive";
0204374e	55	public static final String KEY_FLAGS = "flags";
24c22a3f TB	56	public static final String KEY_IKE_PROPOSAL = "ike_proposal";
24c22a3f TB	57	public static final String KEY_ESP_PROPOSAL = "esp_proposal";
d799cbf6 TB	58
	59	private DatabaseHelper mDbHelper;
	60	private SQLiteDatabase mDatabase;
	61	private final Context mContext;
	62
	63	private static final String DATABASE_NAME = "strongswan.db";
	64	private static final String TABLE_VPNPROFILE = "vpnprofile";
	65
93489acc	66	private static final int DATABASE_VERSION = 16;
d799cbf6	67
ccb6e9f1 TB	68	public static final DbColumn[] COLUMNS = new DbColumn[] {
	69	new DbColumn(KEY_ID, "INTEGER PRIMARY KEY AUTOINCREMENT", 1),
	70	new DbColumn(KEY_UUID, "TEXT UNIQUE", 9),
	71	new DbColumn(KEY_NAME, "TEXT NOT NULL", 1),
	72	new DbColumn(KEY_GATEWAY, "TEXT NOT NULL", 1),
	73	new DbColumn(KEY_VPN_TYPE, "TEXT NOT NULL", 3),
	74	new DbColumn(KEY_USERNAME, "TEXT", 1),
	75	new DbColumn(KEY_PASSWORD, "TEXT", 1),
	76	new DbColumn(KEY_CERTIFICATE, "TEXT", 1),
	77	new DbColumn(KEY_USER_CERTIFICATE, "TEXT", 2),
	78	new DbColumn(KEY_MTU, "INTEGER", 5),
	79	new DbColumn(KEY_PORT, "INTEGER", 5),
	80	new DbColumn(KEY_SPLIT_TUNNELING, "INTEGER", 7),
	81	new DbColumn(KEY_LOCAL_ID, "TEXT", 8),
	82	new DbColumn(KEY_REMOTE_ID, "TEXT", 8),
	83	new DbColumn(KEY_EXCLUDED_SUBNETS, "TEXT", 10),
	84	new DbColumn(KEY_INCLUDED_SUBNETS, "TEXT", 11),
	85	new DbColumn(KEY_SELECTED_APPS, "INTEGER", 12),
	86	new DbColumn(KEY_SELECTED_APPS_LIST, "TEXT", 12),
	87	new DbColumn(KEY_NAT_KEEPALIVE, "INTEGER", 13),
	88	new DbColumn(KEY_FLAGS, "INTEGER", 14),
24c22a3f TB	89	new DbColumn(KEY_IKE_PROPOSAL, "TEXT", 15),
24c22a3f TB	90	new DbColumn(KEY_ESP_PROPOSAL, "TEXT", 15),
d799cbf6 TB	91	};
d799cbf6 TB	92
ccb6e9f1 TB	93	private static final String[] ALL_COLUMNS = getColumns(DATABASE_VERSION);
	94
	95	private static String getDatabaseCreate(int version)
	96	{
	97	boolean first = true;
	98	StringBuilder create = new StringBuilder("CREATE TABLE ");
	99	create.append(TABLE_VPNPROFILE);
	100	create.append(" (");
	101	for (DbColumn column : COLUMNS)
	102	{
	103	if (column.Since <= version)
	104	{
	105	if (!first)
	106	{
	107	create.append(",");
	108	}
	109	first = false;
	110	create.append(column.Name);
	111	create.append(" ");
	112	create.append(column.Type);
	113	}
	114	}
	115	create.append(");");
	116	return create.toString();
	117	}
	118
	119	private static String[] getColumns(int version)
	120	{
	121	ArrayList<String> columns = new ArrayList<>();
	122	for (DbColumn column : COLUMNS)
	123	{
	124	if (column.Since <= version)
	125	{
	126	columns.add(column.Name);
	127	}
	128	}
	129	return columns.toArray(new String[0]);
	130	}
	131
d799cbf6 TB	132	private static class DatabaseHelper extends SQLiteOpenHelper
	133	{
	134	public DatabaseHelper(Context context)
	135	{
	136	super(context, DATABASE_NAME, null, DATABASE_VERSION);
	137	}
	138
	139	@Override
	140	public void onCreate(SQLiteDatabase database)
	141	{
ccb6e9f1	142	database.execSQL(getDatabaseCreate(DATABASE_VERSION));
d799cbf6 TB	143	}
	144
	145	@Override
	146	public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion)
	147	{
	148	Log.w(TAG, "Upgrading database from version " + oldVersion +
e09f4120 TB	149	" to " + newVersion);
	150	if (oldVersion < 2)
	151	{
	152	db.execSQL("ALTER TABLE " + TABLE_VPNPROFILE + " ADD " + KEY_USER_CERTIFICATE +
	153	" TEXT;");
	154	}
48f51d94 TB	155	if (oldVersion < 3)
	156	{
	157	db.execSQL("ALTER TABLE " + TABLE_VPNPROFILE + " ADD " + KEY_VPN_TYPE +
	158	" TEXT DEFAULT '';");
	159	}
3f9e90f6 TB	160	if (oldVersion < 4)
3f9e90f6 TB	161	{ /* remove NOT NULL constraint from username column */
ccb6e9f1	162	updateColumns(db, 4);
3f9e90f6	163	}
7e2a6c4a TB	164	if (oldVersion < 5)
	165	{
	166	db.execSQL("ALTER TABLE " + TABLE_VPNPROFILE + " ADD " + KEY_MTU +
	167	" INTEGER;");
	168	}
5b11855f TB	169	if (oldVersion < 6)
	170	{
	171	db.execSQL("ALTER TABLE " + TABLE_VPNPROFILE + " ADD " + KEY_PORT +
	172	" INTEGER;");
	173	}
f3d8da76 TB	174	if (oldVersion < 7)
	175	{
	176	db.execSQL("ALTER TABLE " + TABLE_VPNPROFILE + " ADD " + KEY_SPLIT_TUNNELING +
	177	" INTEGER;");
	178	}
89149dbb TB	179	if (oldVersion < 8)
	180	{
	181	db.execSQL("ALTER TABLE " + TABLE_VPNPROFILE + " ADD " + KEY_LOCAL_ID +
	182	" TEXT;");
	183	db.execSQL("ALTER TABLE " + TABLE_VPNPROFILE + " ADD " + KEY_REMOTE_ID +
	184	" TEXT;");
	185	}
c4ab9af7 TB	186	if (oldVersion < 9)
	187	{
	188	db.execSQL("ALTER TABLE " + TABLE_VPNPROFILE + " ADD " + KEY_UUID +
	189	" TEXT;");
ccb6e9f1	190	updateColumns(db, 9);
c4ab9af7	191	}
13ead876 TB	192	if (oldVersion < 10)
	193	{
	194	db.execSQL("ALTER TABLE " + TABLE_VPNPROFILE + " ADD " + KEY_EXCLUDED_SUBNETS +
	195	" TEXT;");
	196	}
a9875259 TB	197	if (oldVersion < 11)
	198	{
	199	db.execSQL("ALTER TABLE " + TABLE_VPNPROFILE + " ADD " + KEY_INCLUDED_SUBNETS +
	200	" TEXT;");
	201	}
43b33f07 TB	202	if (oldVersion < 12)
	203	{
	204	db.execSQL("ALTER TABLE " + TABLE_VPNPROFILE + " ADD " + KEY_SELECTED_APPS +
	205	" INTEGER;");
	206	db.execSQL("ALTER TABLE " + TABLE_VPNPROFILE + " ADD " + KEY_SELECTED_APPS_LIST +
	207	" TEXT;");
	208	}
a2830231 TB	209	if (oldVersion < 13)
	210	{
	211	db.execSQL("ALTER TABLE " + TABLE_VPNPROFILE + " ADD " + KEY_NAT_KEEPALIVE +
	212	" INTEGER;");
	213	}
0204374e TB	214	if (oldVersion < 14)
	215	{
	216	db.execSQL("ALTER TABLE " + TABLE_VPNPROFILE + " ADD " + KEY_FLAGS +
	217	" INTEGER;");
	218	}
24c22a3f TB	219	if (oldVersion < 15)
	220	{
	221	db.execSQL("ALTER TABLE " + TABLE_VPNPROFILE + " ADD " + KEY_IKE_PROPOSAL +
	222	" TEXT;");
	223	db.execSQL("ALTER TABLE " + TABLE_VPNPROFILE + " ADD " + KEY_ESP_PROPOSAL +
	224	" TEXT;");
	225	}
93489acc TB	226	if (oldVersion < 16)
	227	{ /* add a UUID to all entries that haven't one yet */
	228	db.beginTransaction();
	229	try
	230	{
	231	Cursor cursor = db.query(TABLE_VPNPROFILE, ALL_COLUMNS, KEY_UUID + " is NULL", null, null, null, null);
	232	for (cursor.moveToFirst(); !cursor.isAfterLast(); cursor.moveToNext())
	233	{
	234	ContentValues values = new ContentValues();
	235	values.put(KEY_UUID, UUID.randomUUID().toString());
	236	db.update(TABLE_VPNPROFILE, values, KEY_ID + " = " + cursor.getLong(cursor.getColumnIndex(KEY_ID)), null);
	237	}
	238	cursor.close();
	239	db.setTransactionSuccessful();
	240	}
	241	finally
	242	{
	243	db.endTransaction();
	244	}
	245	}
3f9e90f6 TB	246	}
3f9e90f6 TB	247
ccb6e9f1	248	private void updateColumns(SQLiteDatabase db, int version)
3f9e90f6 TB	249	{
	250	db.beginTransaction();
	251	try
	252	{
	253	db.execSQL("ALTER TABLE " + TABLE_VPNPROFILE + " RENAME TO tmp_" + TABLE_VPNPROFILE + ";");
ccb6e9f1	254	db.execSQL(getDatabaseCreate(version));
3f9e90f6	255	StringBuilder insert = new StringBuilder("INSERT INTO " + TABLE_VPNPROFILE + " SELECT ");
ccb6e9f1	256	SQLiteQueryBuilder.appendColumns(insert, getColumns(version));
3f9e90f6 TB	257	db.execSQL(insert.append(" FROM tmp_" + TABLE_VPNPROFILE + ";").toString());
	258	db.execSQL("DROP TABLE tmp_" + TABLE_VPNPROFILE + ";");
	259	db.setTransactionSuccessful();
	260	}
	261	finally
	262	{
	263	db.endTransaction();
	264	}
d799cbf6 TB	265	}
	266	}
	267
	268	/**
	269	* Construct a new VPN profile data source. The context is used to
	270	* open/create the database.
	271	* @param context context used to access the database
	272	*/
	273	public VpnProfileDataSource(Context context)
	274	{
	275	this.mContext = context;
	276	}
	277
	278	/**
	279	* Open the VPN profile data source. The database is automatically created
	280	* if it does not yet exist. If that fails an exception is thrown.
	281	* @return itself (allows to chain initialization calls)
	282	* @throws SQLException if the database could not be opened or created
	283	*/
	284	public VpnProfileDataSource open() throws SQLException
	285	{
	286	if (mDbHelper == null)
	287	{
	288	mDbHelper = new DatabaseHelper(mContext);
	289	mDatabase = mDbHelper.getWritableDatabase();
	290	}
	291	return this;
	292	}
	293
	294	/**
	295	* Close the data source.
	296	*/
	297	public void close()
	298	{
	299	if (mDbHelper != null)
	300	{
	301	mDbHelper.close();
	302	mDbHelper = null;
	303	}
	304	}
	305
	306	/**
	307	* Insert the given VPN profile into the database. On success the Id of
	308	* the object is updated and the object returned.
	309	*
	310	* @param profile the profile to add
	311	* @return the added VPN profile or null, if failed
	312	*/
	313	public VpnProfile insertProfile(VpnProfile profile)
	314	{
	315	ContentValues values = ContentValuesFromVpnProfile(profile);
	316	long insertId = mDatabase.insert(TABLE_VPNPROFILE, null, values);
	317	if (insertId == -1)
	318	{
	319	return null;
	320	}
	321	profile.setId(insertId);
	322	return profile;
	323	}
	324
	325	/**
	326	* Updates the given VPN profile in the database.
	327	* @param profile the profile to update
	328	* @return true if update succeeded, false otherwise
329	*/
330	public boolean updateVpnProfile(VpnProfile profile)
331	{
332	long id = profile.getId();
333	ContentValues values = ContentValuesFromVpnProfile(profile);
334	return mDatabase.update(TABLE_VPNPROFILE, values, KEY_ID + " = " + id, null) > 0;
335	}
336
337	/**
338	* Delete the given VPN profile from the database.
339	* @param profile the profile to delete
340	* @return true if deleted, false otherwise
341	*/
342	public boolean deleteVpnProfile(VpnProfile profile)
343	{
344	long id = profile.getId();
345	return mDatabase.delete(TABLE_VPNPROFILE, KEY_ID + " = " + id, null) > 0;
346	}
347
348	/**
349	* Get a single VPN profile from the database.
350	* @param id the ID of the VPN profile
351	* @return the profile or null, if not found
352	*/
353	public VpnProfile getVpnProfile(long id)
354	{
355	VpnProfile profile = null;
356	Cursor cursor = mDatabase.query(TABLE_VPNPROFILE, ALL_COLUMNS,
357	KEY_ID + "=" + id, null, null, null, null);
358	if (cursor.moveToFirst())
359	{
360	profile = VpnProfileFromCursor(cursor);
361	}
362	cursor.close();
363	return profile;
364	}
365
c4ab9af7 TB	366	/**
	367	* Get a single VPN profile from the database by its UUID.
	368	* @param uuid the UUID of the VPN profile
	369	* @return the profile or null, if not found
	370	*/
	371	public VpnProfile getVpnProfile(UUID uuid)
	372	{
	373	VpnProfile profile = null;
	374	Cursor cursor = mDatabase.query(TABLE_VPNPROFILE, ALL_COLUMNS,
	375	KEY_UUID + "='" + uuid.toString() + "'", null, null, null, null);
	376	if (cursor.moveToFirst())
	377	{
	378	profile = VpnProfileFromCursor(cursor);
	379	}
	380	cursor.close();
	381	return profile;
	382	}
	383
d799cbf6 TB	384	/**
	385	* Get a list of all VPN profiles stored in the database.
	386	* @return list of VPN profiles
	387	*/
	388	public List<VpnProfile> getAllVpnProfiles()
	389	{
	390	List<VpnProfile> vpnProfiles = new ArrayList<VpnProfile>();
	391
	392	Cursor cursor = mDatabase.query(TABLE_VPNPROFILE, ALL_COLUMNS, null, null, null, null, null);
	393	cursor.moveToFirst();
	394	while (!cursor.isAfterLast())
	395	{
	396	VpnProfile vpnProfile = VpnProfileFromCursor(cursor);
	397	vpnProfiles.add(vpnProfile);
	398	cursor.moveToNext();
	399	}
	400	cursor.close();
	401	return vpnProfiles;
	402	}
	403
	404	private VpnProfile VpnProfileFromCursor(Cursor cursor)
	405	{
	406	VpnProfile profile = new VpnProfile();
	407	profile.setId(cursor.getLong(cursor.getColumnIndex(KEY_ID)));
93489acc	408	profile.setUUID(UUID.fromString(cursor.getString(cursor.getColumnIndex(KEY_UUID))));
d799cbf6 TB	409	profile.setName(cursor.getString(cursor.getColumnIndex(KEY_NAME)));
d799cbf6 TB	410	profile.setGateway(cursor.getString(cursor.getColumnIndex(KEY_GATEWAY)));
48f51d94	411	profile.setVpnType(VpnType.fromIdentifier(cursor.getString(cursor.getColumnIndex(KEY_VPN_TYPE))));
d799cbf6 TB	412	profile.setUsername(cursor.getString(cursor.getColumnIndex(KEY_USERNAME)));
	413	profile.setPassword(cursor.getString(cursor.getColumnIndex(KEY_PASSWORD)));
	414	profile.setCertificateAlias(cursor.getString(cursor.getColumnIndex(KEY_CERTIFICATE)));
e09f4120	415	profile.setUserCertificateAlias(cursor.getString(cursor.getColumnIndex(KEY_USER_CERTIFICATE)));
7e2a6c4a	416	profile.setMTU(getInt(cursor, cursor.getColumnIndex(KEY_MTU)));
5b11855f	417	profile.setPort(getInt(cursor, cursor.getColumnIndex(KEY_PORT)));
f3d8da76	418	profile.setSplitTunneling(getInt(cursor, cursor.getColumnIndex(KEY_SPLIT_TUNNELING)));
89149dbb TB	419	profile.setLocalId(cursor.getString(cursor.getColumnIndex(KEY_LOCAL_ID)));
89149dbb TB	420	profile.setRemoteId(cursor.getString(cursor.getColumnIndex(KEY_REMOTE_ID)));
13ead876	421	profile.setExcludedSubnets(cursor.getString(cursor.getColumnIndex(KEY_EXCLUDED_SUBNETS)));
a9875259	422	profile.setIncludedSubnets(cursor.getString(cursor.getColumnIndex(KEY_INCLUDED_SUBNETS)));
43b33f07 TB	423	profile.setSelectedAppsHandling(getInt(cursor, cursor.getColumnIndex(KEY_SELECTED_APPS)));
43b33f07 TB	424	profile.setSelectedApps(cursor.getString(cursor.getColumnIndex(KEY_SELECTED_APPS_LIST)));
a2830231	425	profile.setNATKeepAlive(getInt(cursor, cursor.getColumnIndex(KEY_NAT_KEEPALIVE)));
0204374e	426	profile.setFlags(getInt(cursor, cursor.getColumnIndex(KEY_FLAGS)));
24c22a3f TB	427	profile.setIkeProposal(cursor.getString(cursor.getColumnIndex(KEY_IKE_PROPOSAL)));
24c22a3f TB	428	profile.setEspProposal(cursor.getString(cursor.getColumnIndex(KEY_ESP_PROPOSAL)));
d799cbf6 TB	429	return profile;
	430	}
	431
	432	private ContentValues ContentValuesFromVpnProfile(VpnProfile profile)
	433	{
	434	ContentValues values = new ContentValues();
93489acc	435	values.put(KEY_UUID, profile.getUUID().toString());
d799cbf6 TB	436	values.put(KEY_NAME, profile.getName());
d799cbf6 TB	437	values.put(KEY_GATEWAY, profile.getGateway());
48f51d94	438	values.put(KEY_VPN_TYPE, profile.getVpnType().getIdentifier());
d799cbf6 TB	439	values.put(KEY_USERNAME, profile.getUsername());
	440	values.put(KEY_PASSWORD, profile.getPassword());
	441	values.put(KEY_CERTIFICATE, profile.getCertificateAlias());
e09f4120	442	values.put(KEY_USER_CERTIFICATE, profile.getUserCertificateAlias());
7e2a6c4a	443	values.put(KEY_MTU, profile.getMTU());
5b11855f	444	values.put(KEY_PORT, profile.getPort());
f3d8da76	445	values.put(KEY_SPLIT_TUNNELING, profile.getSplitTunneling());
89149dbb TB	446	values.put(KEY_LOCAL_ID, profile.getLocalId());
89149dbb TB	447	values.put(KEY_REMOTE_ID, profile.getRemoteId());
13ead876	448	values.put(KEY_EXCLUDED_SUBNETS, profile.getExcludedSubnets());
a9875259	449	values.put(KEY_INCLUDED_SUBNETS, profile.getIncludedSubnets());
43b33f07 TB	450	values.put(KEY_SELECTED_APPS, profile.getSelectedAppsHandling().getValue());
43b33f07 TB	451	values.put(KEY_SELECTED_APPS_LIST, profile.getSelectedApps());
a2830231	452	values.put(KEY_NAT_KEEPALIVE, profile.getNATKeepAlive());
0204374e	453	values.put(KEY_FLAGS, profile.getFlags());
24c22a3f TB	454	values.put(KEY_IKE_PROPOSAL, profile.getIkeProposal());
24c22a3f TB	455	values.put(KEY_ESP_PROPOSAL, profile.getEspProposal());
d799cbf6 TB	456	return values;
d799cbf6 TB	457	}
7e2a6c4a TB	458
	459	private Integer getInt(Cursor cursor, int columnIndex)
	460	{
	461	return cursor.isNull(columnIndex) ? null : cursor.getInt(columnIndex);
	462	}
c4ab9af7	463
ccb6e9f1 TB	464	private static class DbColumn
	465	{
	466	public final String Name;
	467	public final String Type;
	468	public final Integer Since;
	469
	470	public DbColumn(String name, String type, Integer since)
	471	{
	472	Name = name;
	473	Type = type;
	474	Since = since;
	475	}
	476	}
d799cbf6	477	}