package de.pixart.messenger.ui; import android.Manifest; import android.app.Activity; import android.app.AlertDialog; import android.content.DialogInterface; import android.content.Intent; import android.content.pm.ApplicationInfo; import android.content.pm.PackageManager; import android.database.sqlite.SQLiteDatabase; import android.database.sqlite.SQLiteException; import android.net.Uri; import android.os.Build; import android.os.Bundle; import android.os.Environment; import android.util.Log; import android.view.View; import android.widget.Button; import android.widget.TextView; 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.util.List; import de.pixart.messenger.Config; import de.pixart.messenger.R; import de.pixart.messenger.persistance.DatabaseBackend; public class WelcomeActivity extends Activity { private static final int REQUEST_READ_EXTERNAL_STORAGE = 0XD737; boolean dbExist = false; boolean backup_existing = false; @Override protected void onCreate(final Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.welcome); //check if there is a backed up database -- if (hasStoragePermission(REQUEST_READ_EXTERNAL_STORAGE)) { dbExist = checkDatabase(); } if (dbExist) { backup_existing = true; } final Button ImportDatabase = (Button) findViewById(R.id.import_database); final TextView ImportText = (TextView) findViewById(R.id.import_text); if (backup_existing) { ImportDatabase.setVisibility(View.VISIBLE); ImportText.setVisibility(View.VISIBLE); } ImportDatabase.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { try { ImportDatabase(); } catch (IOException e) { e.printStackTrace(); } } }); final Button createAccount = (Button) findViewById(R.id.create_account); createAccount.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Intent intent = new Intent(WelcomeActivity.this, MagicCreateActivity.class); intent.addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION); startActivity(intent); } }); final Button useOwnProvider = (Button) findViewById(R.id.use_existing_account); useOwnProvider.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { startActivity(new Intent(WelcomeActivity.this, EditAccountActivity.class)); } }); } private boolean checkDatabase() { SQLiteDatabase checkDB = null; String DB_PATH = Environment.getExternalStorageDirectory().getAbsolutePath() + "/Pix-Art Messenger/.Database/"; String DB_NAME = "Database.bak"; int DB_Version = DatabaseBackend.DATABASE_VERSION; int Backup_DB_Version = 0; try { String dbPath = DB_PATH + DB_NAME; 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(); } if (checkDB != null && Backup_DB_Version <= DB_Version) { return true; } else { return false; } } private void ImportDatabase() throws IOException { // Set location for the db: OutputStream myOutput = new FileOutputStream(this.getDatabasePath(DatabaseBackend.DATABASE_NAME)); // Set the folder on the SDcard File directory = new File(Environment.getExternalStorageDirectory().getAbsolutePath() + "/Pix-Art Messenger/.Database/"); // Set the input file stream up: InputStream myInput = new FileInputStream(directory.getPath() + "/Database.bak"); // Transfer bytes from the input file to the output file byte[] buffer = new byte[1024]; int length; while ((length = myInput.read(buffer)) > 0) { myOutput.write(buffer, 0, length); } Log.d(Config.LOGTAG,"Starting import of backup"); // Close and clear the streams myOutput.flush(); myOutput.close(); myInput.close(); Log.d(Config.LOGTAG, "New Features - Uninstall old version of Pix-Art Messenger"); if (isPackageInstalled("eu.siacs.conversations")) { AlertDialog.Builder builder = new AlertDialog.Builder(this); builder.setMessage(R.string.uninstall_app_text) .setPositiveButton(R.string.uninstall, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialogInterface, int i) { //start the deinstallation of old version if (isPackageInstalled("eu.siacs.conversations")) { Uri packageURI_VR = Uri.parse("package:eu.siacs.conversations"); Intent uninstallIntent_VR = new Intent(Intent.ACTION_UNINSTALL_PACKAGE, packageURI_VR); if (uninstallIntent_VR.resolveActivity(getPackageManager()) != null) { startActivity(uninstallIntent_VR); } } } }) .setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialogInterface, int i) { Log.d(Config.LOGTAG, "New Features - Uninstall cancled"); restart(); } }); builder.create().show(); } else { restart(); } } 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); } private boolean isPackageInstalled(String targetPackage) { List packages; PackageManager pm; pm = getPackageManager(); packages = pm.getInstalledApplications(0); for (ApplicationInfo packageInfo : packages) { if (packageInfo.packageName.equals(targetPackage)) return true; } return false; } 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; } } }