package de.pixart.messenger.ui; import android.Manifest; import android.app.ActionBar; import android.app.Activity; import android.app.AlertDialog; import android.app.ProgressDialog; import android.content.DialogInterface; import android.content.Intent; import android.content.pm.ActivityInfo; import android.content.pm.PackageManager; import android.database.sqlite.SQLiteDatabase; import android.database.sqlite.SQLiteException; import android.os.Build; import android.os.Bundle; import android.util.Log; import android.view.LayoutInflater; import android.view.View; import android.widget.Button; import android.widget.EditText; import android.widget.TextView; import android.widget.Toast; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.security.InvalidKeyException; import java.security.NoSuchAlgorithmException; import java.util.List; import javax.crypto.NoSuchPaddingException; import de.pixart.messenger.Config; import de.pixart.messenger.R; import de.pixart.messenger.entities.Account; import de.pixart.messenger.persistance.DatabaseBackend; import de.pixart.messenger.persistance.FileBackend; import de.pixart.messenger.utils.EncryptDecryptFile; import de.pixart.messenger.utils.XmppUri; public class WelcomeActivity extends XmppActivity { public static final String EXTRA_INVITEE = "eu.siacs.conversations.invitee"; boolean importSuccessful = false; @Override protected void refreshUiReal() { } @Override void onBackendConnected() { } private static final int REQUEST_READ_EXTERNAL_STORAGE = 0XD737; @Override public void onStart() { super.onStart(); final int theme = findTheme(); if (this.mTheme != theme) { recreate(); } } @Override public void onNewIntent(Intent intent) { if (intent != null) { setIntent(intent); } } @Override protected void onCreate(final Bundle savedInstanceState) { if (getResources().getBoolean(R.bool.portrait_only)) { setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT); } super.onCreate(savedInstanceState); setContentView(R.layout.welcome); final ActionBar ab = getActionBar(); if (ab != null) { ab.setDisplayShowHomeEnabled(false); ab.setDisplayHomeAsUpEnabled(false); } //check if there is a backed up database -- if (hasStoragePermission(REQUEST_READ_EXTERNAL_STORAGE)) { BackupAvailable(); } final Button ImportDatabase = findViewById(R.id.import_database); final TextView ImportText = findViewById(R.id.import_text); if (BackupAvailable()) { ImportDatabase.setVisibility(View.VISIBLE); ImportText.setVisibility(View.VISIBLE); } ImportDatabase.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { enterPasswordDialog(); } }); final Button createAccount = findViewById(R.id.create_account); createAccount.setOnClickListener(v -> { final Intent intent = new Intent(WelcomeActivity.this, MagicCreateActivity.class); intent.addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION); addInvitee(intent); startActivity(intent); }); final Button useOwnProvider = findViewById(R.id.use_existing_account); useOwnProvider.setOnClickListener(v -> { List accounts = xmppConnectionService.getAccounts(); Intent intent = new Intent(WelcomeActivity.this, EditAccountActivity.class); if (accounts.size() == 1) { intent.putExtra("jid", accounts.get(0).getJid().toBareJid().toString()); intent.putExtra("init", true); } else if (accounts.size() >= 1) { intent = new Intent(WelcomeActivity.this, ManageAccountActivity.class); } addInvitee(intent); startActivity(intent); }); } public void enterPasswordDialog() { LayoutInflater li = LayoutInflater.from(WelcomeActivity.this); View promptsView = li.inflate(R.layout.password, null); final AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(WelcomeActivity.this); alertDialogBuilder.setView(promptsView); final EditText userInput = promptsView .findViewById(R.id.password); alertDialogBuilder.setTitle(R.string.enter_password); alertDialogBuilder.setMessage(R.string.enter_account_password); alertDialogBuilder .setCancelable(false) .setPositiveButton(R.string.ok, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int id) { final String password = userInput.getText().toString(); final ProgressDialog pd = ProgressDialog.show(WelcomeActivity.this, getString(R.string.please_wait), getString(R.string.databaseimport_started), true); if (!password.isEmpty()) { new Thread(new Runnable() { @Override public void run() { try { checkDatabase(password); } catch (IOException e) { e.printStackTrace(); } pd.dismiss(); } }).start(); } else { AlertDialog.Builder builder = new AlertDialog.Builder(WelcomeActivity.this); builder.setTitle(R.string.error); builder.setMessage(R.string.password_should_not_be_empty); builder.setNegativeButton(R.string.cancel, null); builder.setPositiveButton(R.string.try_again, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int id) { enterPasswordDialog(); } }); builder.create().show(); } } }) .setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int id) { Toast.makeText(WelcomeActivity.this, R.string.import_canceled, Toast.LENGTH_LONG).show(); dialog.dismiss(); } } ); WelcomeActivity.this.runOnUiThread(new Runnable() { public void run() { // create alert dialog AlertDialog alertDialog = alertDialogBuilder.create(); // show it alertDialog.show(); } }); } private boolean BackupAvailable() { // Set the folder on the SDcard File filePath = new File(FileBackend.getConversationsDirectory("Database", false) + "database.db.crypt"); Log.d(Config.LOGTAG, "DB Path: " + filePath.toString()); if (filePath.exists()) { Log.d(Config.LOGTAG, "DB Path existing"); return true; } else { Log.d(Config.LOGTAG, "DB Path not existing"); return false; } } private void checkDatabase(String DecryptionKey) throws IOException { // Set the folder on the SDcard File directory = new File(FileBackend.getConversationsDirectory("Database", false)); // Set the input file stream up: FileInputStream InputFile = new FileInputStream(directory.getPath() + "/database.db.crypt"); // Temp output for DB checks File TempFile = new File(directory.getPath() + "/database.bak"); FileOutputStream OutputTemp = new FileOutputStream(TempFile); try { EncryptDecryptFile.decrypt(InputFile, OutputTemp, DecryptionKey); } catch (NoSuchAlgorithmException e) { Log.d(Config.LOGTAG, "Database importer: decryption failed with " + e); e.printStackTrace(); } catch (NoSuchPaddingException e) { Log.d(Config.LOGTAG, "Database importer: decryption failed with " + e); e.printStackTrace(); } catch (InvalidKeyException e) { Log.d(Config.LOGTAG, "Database importer: decryption failed (invalid key) with " + e); e.printStackTrace(); } catch (IOException e) { Log.d(Config.LOGTAG, "Database importer: decryption failed (IO) with " + e); e.printStackTrace(); } SQLiteDatabase checkDB = null; int DB_Version = DatabaseBackend.DATABASE_VERSION; int Backup_DB_Version = 0; try { String dbPath = TempFile.toString(); checkDB = SQLiteDatabase.openDatabase(dbPath, null, SQLiteDatabase.OPEN_READONLY); Backup_DB_Version = checkDB.getVersion(); Log.d(Config.LOGTAG, "Backup found: " + checkDB + " Version: " + checkDB.getVersion()); } catch (SQLiteException e) { //database does't exist yet. Log.d(Config.LOGTAG, "No backup found: " + checkDB); } if (checkDB != null) { checkDB.close(); } Log.d(Config.LOGTAG, "checkDB = " + checkDB.toString() + ", Backup DB = " + Backup_DB_Version + ", DB = " + DB_Version); if (checkDB != null && Backup_DB_Version != 0 && Backup_DB_Version <= DB_Version) { try { ImportDatabase(); importSuccessful = true; } catch (Exception e) { importSuccessful = false; e.printStackTrace(); } finally { if (importSuccessful) { restart(); } } } else if (checkDB != null && Backup_DB_Version == 0) { WelcomeActivity.this.runOnUiThread(new Runnable() { public void run() { Toast.makeText(WelcomeActivity.this, R.string.Password_wrong, Toast.LENGTH_LONG).show(); enterPasswordDialog(); } }); } else { WelcomeActivity.this.runOnUiThread(new Runnable() { public void run() { Toast.makeText(WelcomeActivity.this, R.string.Import_failed, Toast.LENGTH_LONG).show(); } }); } } private void ImportDatabase() throws Exception { // Set location for the db: final OutputStream OutputFile = new FileOutputStream(this.getDatabasePath(DatabaseBackend.DATABASE_NAME)); // Set the folder on the SDcard File directory = new File(FileBackend.getConversationsDirectory("Database", false)); // Set the input file stream up: final InputStream InputFile = new FileInputStream(directory.getPath() + "/database.bak"); //set temp file File TempFile = new File(directory.getPath() + "/database.bak"); // Transfer bytes from the input file to the output file byte[] buffer = new byte[1024]; int length; while ((length = InputFile.read(buffer)) > 0) { OutputFile.write(buffer, 0, length); } if (TempFile.exists()) { Log.d(Config.LOGTAG, "Delete temp file from " + TempFile.toString()); TempFile.delete(); } } private void restart() { //restart app Log.d(Config.LOGTAG, "Restarting " + getBaseContext().getPackageManager().getLaunchIntentForPackage(getBaseContext().getPackageName())); Intent intent = getBaseContext().getPackageManager().getLaunchIntentForPackage(getBaseContext().getPackageName()); intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); startActivity(intent); System.exit(0); } public boolean hasStoragePermission(int requestCode) { if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) { if (checkSelfPermission(Manifest.permission.READ_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) { requestPermissions(new String[]{Manifest.permission.READ_EXTERNAL_STORAGE}, requestCode); return false; } else { return true; } } else { return true; } } public void addInvitee(Intent intent) { addInvitee(intent, getIntent()); } public static void addInvitee(Intent intent, XmppUri uri) { if (uri.isJidValid()) { intent.putExtra(EXTRA_INVITEE, uri.getJid().toString()); } } public static void addInvitee(Intent to, Intent from) { if (from != null && from.hasExtra(EXTRA_INVITEE)) { to.putExtra(EXTRA_INVITEE, from.getStringExtra(EXTRA_INVITEE)); } } public static void launch(Activity activity) { Intent intent = new Intent(activity, WelcomeActivity.class); intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_NO_ANIMATION); activity.startActivity(intent); activity.overridePendingTransition(0, 0); } }