/*
- * Copyright © 2018 Soren Stoutner <soren@stoutner.com>.
+ * Copyright © 2018-2019 Soren Stoutner <soren@stoutner.com>.
*
* This file is part of Privacy Browser <https://www.stoutner.com/privacy-browser>.
*
import android.Manifest;
import android.app.Activity;
-import android.app.DialogFragment;
import android.content.Intent;
+import android.content.SharedPreferences;
import android.content.pm.PackageManager;
+import android.media.MediaScannerConnection;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.os.Environment;
+import android.preference.PreferenceManager;
import android.provider.DocumentsContract;
-import android.support.annotation.NonNull;
-import android.support.design.widget.Snackbar;
-import android.support.design.widget.TextInputLayout;
-import android.support.v4.app.ActivityCompat;
-import android.support.v4.content.ContextCompat;
-import android.support.v7.app.ActionBar;
-import android.support.v7.app.AppCompatActivity;
-import android.support.v7.widget.Toolbar;
import android.text.Editable;
import android.text.TextWatcher;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
+import android.widget.LinearLayout;
+import android.widget.RadioButton;
import android.widget.Spinner;
import android.widget.TextView;
+import androidx.annotation.NonNull;
+import androidx.appcompat.app.ActionBar;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.appcompat.widget.Toolbar;
+import androidx.cardview.widget.CardView;
+import androidx.core.app.ActivityCompat;
+import androidx.core.content.ContextCompat;
+import androidx.core.content.FileProvider;
+import androidx.fragment.app.DialogFragment;
+
+import com.google.android.material.snackbar.Snackbar;
+import com.google.android.material.textfield.TextInputLayout;
+
import com.stoutner.privacybrowser.R;
-import com.stoutner.privacybrowser.dialogs.ImportExportStoragePermissionDialog;
+import com.stoutner.privacybrowser.dialogs.StoragePermissionDialog;
import com.stoutner.privacybrowser.helpers.ImportExportDatabaseHelper;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
+import java.nio.charset.StandardCharsets;
import java.security.MessageDigest;
import java.security.SecureRandom;
import java.util.Arrays;
import javax.crypto.spec.GCMParameterSpec;
import javax.crypto.spec.SecretKeySpec;
-public class ImportExportActivity extends AppCompatActivity implements ImportExportStoragePermissionDialog.ImportExportStoragePermissionDialogListener {
+public class ImportExportActivity extends AppCompatActivity implements StoragePermissionDialog.StoragePermissionDialogListener {
// Create the encryption constants.
private final int NO_ENCRYPTION = 0;
private final int PASSWORD_ENCRYPTION = 1;
- private final int GPG_ENCRYPTION = 2;
+ private final int OPENPGP_ENCRYPTION = 2;
+
+ // Create the activity result constants.
+ private final int BROWSE_RESULT_CODE = 0;
+ private final int OPENPGP_EXPORT_RESULT_CODE = 1;
- // Create the action constants.
- private final int IMPORT = 0;
- private final int EXPORT = 1;
+ // `openKeychainInstalled` is accessed from an inner class.
+ private boolean openKeychainInstalled;
@Override
public void onCreate(Bundle savedInstanceState) {
+ // Get a handle for the shared preferences.
+ SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
+
+ // Get the theme and screenshot preferences.
+ boolean darkTheme = sharedPreferences.getBoolean("dark_theme", false);
+ boolean allowScreenshots = sharedPreferences.getBoolean("allow_screenshots", false);
+
// Disable screenshots if not allowed.
- if (!MainWebViewActivity.allowScreenshots) {
+ if (!allowScreenshots) {
getWindow().addFlags(WindowManager.LayoutParams.FLAG_SECURE);
}
// Set the activity theme.
- if (MainWebViewActivity.darkTheme) {
+ if (darkTheme) {
setTheme(R.style.PrivacyBrowserDark_SecondaryActivity);
} else {
setTheme(R.style.PrivacyBrowserLight_SecondaryActivity);
setContentView(R.layout.import_export_coordinatorlayout);
// Use the `SupportActionBar` from `android.support.v7.app.ActionBar` until the minimum API is >= 21.
- Toolbar importExportAppBar = findViewById(R.id.import_export_toolbar);
- setSupportActionBar(importExportAppBar);
+ Toolbar toolbar = findViewById(R.id.import_export_toolbar);
+ setSupportActionBar(toolbar);
+
+ // Get a handle for the action bar.
+ ActionBar actionBar = getSupportActionBar();
+
+ // Remove the incorrect lint warning that the action bar might be null.
+ assert actionBar != null;
// Display the home arrow on the support action bar.
- ActionBar appBar = getSupportActionBar();
- assert appBar != null;// This assert removes the incorrect warning in Android Studio on the following line that `appBar` might be null.
- appBar.setDisplayHomeAsUpEnabled(true);
+ actionBar.setDisplayHomeAsUpEnabled(true);
+
+ // Find out if we are running KitKat
+ boolean runningKitKat = (Build.VERSION.SDK_INT == 19);
+
+ // Find out if OpenKeychain is installed.
+ try {
+ openKeychainInstalled = !getPackageManager().getPackageInfo("org.sufficientlysecure.keychain", 0).versionName.isEmpty();
+ } catch (PackageManager.NameNotFoundException exception) {
+ openKeychainInstalled = false;
+ }
// Get handles for the views that need to be modified.
Spinner encryptionSpinner = findViewById(R.id.encryption_spinner);
TextInputLayout passwordEncryptionTextInputLayout = findViewById(R.id.password_encryption_textinputlayout);
EditText encryptionPasswordEditText = findViewById(R.id.password_encryption_edittext);
- Spinner importExportSpinner = findViewById(R.id.import_export_spinner);
+ TextView kitKatPasswordEncryptionTextView = findViewById(R.id.kitkat_password_encryption_textview);
+ TextView openKeychainRequiredTextView = findViewById(R.id.openkeychain_required_textview);
+ CardView fileLocationCardView = findViewById(R.id.file_location_cardview);
+ RadioButton importRadioButton = findViewById(R.id.import_radiobutton);
+ RadioButton exportRadioButton = findViewById(R.id.export_radiobutton);
+ LinearLayout fileNameLinearLayout = findViewById(R.id.file_name_linearlayout);
EditText fileNameEditText = findViewById(R.id.file_name_edittext);
+ TextView openKeychainImportInstructionsTextView = findViewById(R.id.openkeychain_import_instructions_textview);
Button importExportButton = findViewById(R.id.import_export_button);
TextView storagePermissionTextView = findViewById(R.id.import_export_storage_permission_textview);
- // Create array adapters for the spinners.
+ // Create an array adapter for the spinner.
ArrayAdapter<CharSequence> encryptionArrayAdapter = ArrayAdapter.createFromResource(this, R.array.encryption_type, R.layout.spinner_item);
- ArrayAdapter<CharSequence> importExportArrayAdapter = ArrayAdapter.createFromResource(this, R.array.import_export_spinner, R.layout.spinner_item);
- // Set the drop down view resource on the spinners.
+ // Set the drop down view resource on the spinner.
encryptionArrayAdapter.setDropDownViewResource(R.layout.spinner_dropdown_items);
- importExportArrayAdapter.setDropDownViewResource(R.layout.spinner_dropdown_items);
- // Set the array adapters for the spinners.
+ // Set the array adapter for the spinner.
encryptionSpinner.setAdapter(encryptionArrayAdapter);
- importExportSpinner.setAdapter(importExportArrayAdapter);
- // Initially hide the encryption layout items.
+ // Initially hide the unneeded views.
passwordEncryptionTextInputLayout.setVisibility(View.GONE);
+ kitKatPasswordEncryptionTextView.setVisibility(View.GONE);
+ openKeychainRequiredTextView.setVisibility(View.GONE);
+ fileNameLinearLayout.setVisibility(View.GONE);
+ openKeychainImportInstructionsTextView.setVisibility(View.GONE);
+ importExportButton.setVisibility(View.GONE);
// Create strings for the default file paths.
String defaultFilePath;
String defaultPasswordEncryptionFilePath;
- String defaultGpgEncryptionFilePath;
// Set the default file paths according to the storage permission status.
if (ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED) { // The storage permission has been granted.
// Set the default file paths to use the external public directory.
- defaultFilePath = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOCUMENTS) + "/" + getString(R.string.privacy_browser_settings);
+ defaultFilePath = Environment.getExternalStorageDirectory() + "/" + getString(R.string.settings_pbs);
defaultPasswordEncryptionFilePath = defaultFilePath + ".aes";
- defaultGpgEncryptionFilePath = defaultFilePath + ".gpg";
} else { // The storage permission has not been granted.
// Set the default file paths to use the external private directory.
- defaultFilePath = getApplicationContext().getExternalFilesDir(Environment.DIRECTORY_DOCUMENTS) + "/" + getString(R.string.privacy_browser_settings);
+ defaultFilePath = getApplicationContext().getExternalFilesDir(null) + "/" + getString(R.string.settings_pbs);
defaultPasswordEncryptionFilePath = defaultFilePath + ".aes";
- defaultGpgEncryptionFilePath = defaultFilePath + ".gpg";
}
// Set the default file path.
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
switch (position) {
case NO_ENCRYPTION:
- // Hide the encryption layout items.
+ // Hide the unneeded layout items.
passwordEncryptionTextInputLayout.setVisibility(View.GONE);
+ kitKatPasswordEncryptionTextView.setVisibility(View.GONE);
+ openKeychainRequiredTextView.setVisibility(View.GONE);
+ openKeychainImportInstructionsTextView.setVisibility(View.GONE);
+
+ // Show the file location card.
+ fileLocationCardView.setVisibility(View.VISIBLE);
+
+ // Show the file name linear layout if either import or export is checked.
+ if (importRadioButton.isChecked() || exportRadioButton.isChecked()) {
+ fileNameLinearLayout.setVisibility(View.VISIBLE);
+ }
+
+ // Reset the text of the import button, which may have been changed to `Decrypt`.
+ if (importRadioButton.isChecked()) {
+ importExportButton.setText(R.string.import_button);
+ }
// Reset the default file path.
fileNameEditText.setText(defaultFilePath);
break;
case PASSWORD_ENCRYPTION:
- // Show the password encryption layout items.
- passwordEncryptionTextInputLayout.setVisibility(View.VISIBLE);
-
- // Update the default file path.
- fileNameEditText.setText(defaultPasswordEncryptionFilePath);
-
- // Enable the import/export button if a file name and password exists.
- importExportButton.setEnabled(!fileNameEditText.getText().toString().isEmpty() && !encryptionPasswordEditText.getText().toString().isEmpty());
+ if (runningKitKat) {
+ // Show the KitKat password encryption message.
+ kitKatPasswordEncryptionTextView.setVisibility(View.VISIBLE);
+
+ // Hide the OpenPGP required text view and the file location card.
+ openKeychainRequiredTextView.setVisibility(View.GONE);
+ fileLocationCardView.setVisibility(View.GONE);
+ } else {
+ // Hide the OpenPGP layout items.
+ openKeychainRequiredTextView.setVisibility(View.GONE);
+ openKeychainImportInstructionsTextView.setVisibility(View.GONE);
+
+ // Show the password encryption layout items.
+ passwordEncryptionTextInputLayout.setVisibility(View.VISIBLE);
+
+ // Show the file location card.
+ fileLocationCardView.setVisibility(View.VISIBLE);
+
+ // Show the file name linear layout if either import or export is checked.
+ if (importRadioButton.isChecked() || exportRadioButton.isChecked()) {
+ fileNameLinearLayout.setVisibility(View.VISIBLE);
+ }
+
+ // Reset the text of the import button, which may have been changed to `Decrypt`.
+ if (importRadioButton.isChecked()) {
+ importExportButton.setText(R.string.import_button);
+ }
+
+ // Update the default file path.
+ fileNameEditText.setText(defaultPasswordEncryptionFilePath);
+
+ // Enable the import/export button if a password exists.
+ importExportButton.setEnabled(!encryptionPasswordEditText.getText().toString().isEmpty());
+ }
break;
- case GPG_ENCRYPTION:
+ case OPENPGP_ENCRYPTION:
// Hide the password encryption layout items.
passwordEncryptionTextInputLayout.setVisibility(View.GONE);
-
- // Update the default file path.
- fileNameEditText.setText(defaultGpgEncryptionFilePath);
- break;
- }
- }
-
- @Override
- public void onNothingSelected(AdapterView<?> parent) {
-
- }
- });
-
- // Update the import/export button when the spinner changes.
- importExportSpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
- @Override
- public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
- switch (position) {
- case IMPORT:
- importExportButton.setText(R.string.import_button);
- break;
-
- case EXPORT:
- importExportButton.setText(R.string.export);
+ kitKatPasswordEncryptionTextView.setVisibility(View.GONE);
+
+ // Updated items based on the installation status of OpenKeychain.
+ if (openKeychainInstalled) { // OpenKeychain is installed.
+ // Remove the default file path.
+ fileNameEditText.setText("");
+
+ // Show the file location card.
+ fileLocationCardView.setVisibility(View.VISIBLE);
+
+ if (importRadioButton.isChecked()) {
+ // Show the file name linear layout and the OpenKeychain import instructions.
+ fileNameLinearLayout.setVisibility(View.VISIBLE);
+ openKeychainImportInstructionsTextView.setVisibility(View.VISIBLE);
+
+ // Set the text of the import button to be `Decrypt`.
+ importExportButton.setText(R.string.decrypt);
+
+ // Disable the import/export button. The user needs to select a file to import first.
+ importExportButton.setEnabled(false);
+ } else if (exportRadioButton.isChecked()) {
+ // Hide the file name linear layout and the OpenKeychain import instructions.
+ fileNameLinearLayout.setVisibility(View.GONE);
+ openKeychainImportInstructionsTextView.setVisibility(View.GONE);
+
+ // Enable the import/export button.
+ importExportButton.setEnabled(true);
+ }
+ } else { // OpenKeychain is not installed.
+ // Show the OpenPGP required layout item.
+ openKeychainRequiredTextView.setVisibility(View.VISIBLE);
+
+ // Hide the file location card.
+ fileLocationCardView.setVisibility(View.GONE);
+ }
break;
}
}
importExportButton.setEnabled(!fileNameEditText.getText().toString().isEmpty() && !encryptionPasswordEditText.getText().toString().isEmpty());
break;
- case GPG_ENCRYPTION:
+ case OPENPGP_ENCRYPTION:
+ // Enable the import/export button if OpenKeychain is installed and a file name exists.
+ importExportButton.setEnabled(openKeychainInstalled && !fileNameEditText.getText().toString().isEmpty());
break;
}
}
});
- // Hide the storage permissions TextView on API < 23 as permissions on older devices are automatically granted.
+ // Hide the storage permissions text view on API < 23 as permissions on older devices are automatically granted.
if (Build.VERSION.SDK_INT < 23) {
storagePermissionTextView.setVisibility(View.GONE);
}
}
+ public void onClickRadioButton(View view) {
+ // Get handles for the views.
+ Spinner encryptionSpinner = findViewById(R.id.encryption_spinner);
+ LinearLayout fileNameLinearLayout = findViewById(R.id.file_name_linearlayout);
+ EditText fileNameEditText = findViewById(R.id.file_name_edittext);
+ TextView openKeychainImportInstructionTextView = findViewById(R.id.openkeychain_import_instructions_textview);
+ Button importExportButton = findViewById(R.id.import_export_button);
+
+ // Check to see if import or export was selected.
+ switch (view.getId()) {
+ case R.id.import_radiobutton:
+ // Check to see if OpenPGP encryption is selected.
+ if (encryptionSpinner.getSelectedItemPosition() == OPENPGP_ENCRYPTION) { // OpenPGP encryption selected.
+ // Show the OpenKeychain import instructions.
+ openKeychainImportInstructionTextView.setVisibility(View.VISIBLE);
+
+ // Set the text on the import/export button to be `Decrypt`.
+ importExportButton.setText(R.string.decrypt);
+
+ // Enable the decrypt button if there is a file name.
+ importExportButton.setEnabled(!fileNameEditText.getText().toString().isEmpty());
+ } else { // OpenPGP encryption not selected.
+ // Hide the OpenKeychain import instructions.
+ openKeychainImportInstructionTextView.setVisibility(View.GONE);
+
+ // Set the text on the import/export button to be `Import`.
+ importExportButton.setText(R.string.import_button);
+ }
+
+ // Display the file name views.
+ fileNameLinearLayout.setVisibility(View.VISIBLE);
+ importExportButton.setVisibility(View.VISIBLE);
+ break;
+
+ case R.id.export_radiobutton:
+ // Hide the OpenKeychain import instructions.
+ openKeychainImportInstructionTextView.setVisibility(View.GONE);
+
+ // Set the text on the import/export button to be `Export`.
+ importExportButton.setText(R.string.export);
+
+ // Show the import/export button.
+ importExportButton.setVisibility(View.VISIBLE);
+
+ // Check to see if OpenPGP encryption is selected.
+ if (encryptionSpinner.getSelectedItemPosition() == OPENPGP_ENCRYPTION) { // OpenPGP encryption is selected.
+ // Hide the file name views.
+ fileNameLinearLayout.setVisibility(View.GONE);
+
+ // Enable the export button.
+ importExportButton.setEnabled(true);
+ } else { // OpenPGP encryption is not selected.
+ // Show the file name views.
+ fileNameLinearLayout.setVisibility(View.VISIBLE);
+ }
+ break;
+ }
+ }
+
public void browse(View view) {
- // Get a handle for the import/export spinner.
- Spinner importExportSpinner = findViewById(R.id.import_export_spinner);
+ // Get a handle for the import radiobutton.
+ RadioButton importRadioButton = findViewById(R.id.import_radiobutton);
// Check to see if import or export is selected.
- if (importExportSpinner.getSelectedItemPosition() == IMPORT) { // Import is selected.
+ if (importRadioButton.isChecked()) { // Import is selected.
// Create the file picker intent.
- Intent importIntent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
+ Intent importBrowseIntent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
- // Set the intent MIME type to include all files.
- importIntent.setType("*/*");
+ // Set the intent MIME type to include all files so that everything is visible.
+ importBrowseIntent.setType("*/*");
- // Set the initial directory if API >= 26.
+ // Set the initial directory if the minimum API >= 26.
if (Build.VERSION.SDK_INT >= 26) {
- importIntent.putExtra(DocumentsContract.EXTRA_INITIAL_URI, Environment.getExternalStorageDirectory());
+ importBrowseIntent.putExtra(DocumentsContract.EXTRA_INITIAL_URI, Environment.getExternalStorageDirectory());
}
- // Specify that a file that can be opened is requested.
- importIntent.addCategory(Intent.CATEGORY_OPENABLE);
+ // Request a file that can be opened.
+ importBrowseIntent.addCategory(Intent.CATEGORY_OPENABLE);
// Launch the file picker.
- startActivityForResult(importIntent, 0);
+ startActivityForResult(importBrowseIntent, BROWSE_RESULT_CODE);
} else { // Export is selected
// Create the file picker intent.
- Intent exportIntent = new Intent(Intent.ACTION_CREATE_DOCUMENT);
+ Intent exportBrowseIntent = new Intent(Intent.ACTION_CREATE_DOCUMENT);
- // Set the intent MIME type to include all files.
- exportIntent.setType("*/*");
+ // Set the intent MIME type to include all files so that everything is visible.
+ exportBrowseIntent.setType("*/*");
// Set the initial export file name.
- exportIntent.putExtra(Intent.EXTRA_TITLE, getString(R.string.privacy_browser_settings));
+ exportBrowseIntent.putExtra(Intent.EXTRA_TITLE, getString(R.string.settings_pbs));
- // Set the initial directory if API >= 26.
+ // Set the initial directory if the minimum API >= 26.
if (Build.VERSION.SDK_INT >= 26) {
- exportIntent.putExtra(DocumentsContract.EXTRA_INITIAL_URI, Environment.getExternalStorageDirectory());
+ exportBrowseIntent.putExtra(DocumentsContract.EXTRA_INITIAL_URI, Environment.getExternalStorageDirectory());
}
- // Specify that a file that can be opened is requested.
- exportIntent.addCategory(Intent.CATEGORY_OPENABLE);
+ // Request a file that can be opened.
+ exportBrowseIntent.addCategory(Intent.CATEGORY_OPENABLE);
// Launch the file picker.
- startActivityForResult(exportIntent, 0);
+ startActivityForResult(exportBrowseIntent, BROWSE_RESULT_CODE);
}
}
public void importExport(View view) {
- // Get a handle for the import/export spinner.
- Spinner importExportSpinner = findViewById(R.id.import_export_spinner);
-
- // Check to see if the storage permission has been granted.
- if (ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED) { // Storage permission granted.
+ // Get a handle for the views.
+ Spinner encryptionSpinner = findViewById(R.id.encryption_spinner);
+ RadioButton importRadioButton = findViewById(R.id.import_radiobutton);
+ RadioButton exportRadioButton = findViewById(R.id.export_radiobutton);
+
+ // Check to see if the storage permission is needed.
+ if ((encryptionSpinner.getSelectedItemPosition() == OPENPGP_ENCRYPTION) && exportRadioButton.isChecked()) { // Permission not needed to export via OpenKeychain.
+ // Export the settings.
+ exportSettings();
+ } else if (ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED) { // The storage permission has been granted.
// Check to see if import or export is selected.
- if (importExportSpinner.getSelectedItemPosition() == IMPORT) { // Import is selected.
+ if (importRadioButton.isChecked()) { // Import is selected.
// Import the settings.
importSettings();
} else { // Export is selected.
// Export the settings.
exportSettings();
}
- } else { // Storage permission not granted.
+ } else { // The storage permission has not been granted.
// Get a handle for the file name EditText.
EditText fileNameEditText = findViewById(R.id.file_name_edittext);
String fileNameString = fileNameEditText.getText().toString();
// Get the external private directory `File`.
- File externalPrivateDirectoryFile = getApplicationContext().getExternalFilesDir(null);
+ File externalPrivateDirectoryFile = getExternalFilesDir(null);
- // Remove the lint error below that the `File` might be null.
+ // Remove the incorrect lint error below that the file might be null.
assert externalPrivateDirectoryFile != null;
// Get the external private directory string.
// Check to see if the file path is in the external private directory.
if (fileNameString.startsWith(externalPrivateDirectory)) { // The file path is in the external private directory.
// Check to see if import or export is selected.
- if (importExportSpinner.getSelectedItemPosition() == IMPORT) { // Import is selected.
+ if (importRadioButton.isChecked()) { // Import is selected.
// Import the settings.
importSettings();
} else { // Export is selected.
// Check if the user has previously denied the storage permission.
if (ActivityCompat.shouldShowRequestPermissionRationale(this, Manifest.permission.WRITE_EXTERNAL_STORAGE)) { // Show a dialog explaining the request first.
// Instantiate the storage permission alert dialog.
- DialogFragment importExportStoragePermissionDialogFragment = new ImportExportStoragePermissionDialog();
+ DialogFragment storagePermissionDialogFragment = new StoragePermissionDialog();
// Show the storage permission alert dialog. The permission will be requested when the dialog is closed.
- importExportStoragePermissionDialogFragment.show(getFragmentManager(), getString(R.string.storage_permission));
+ storagePermissionDialogFragment.show(getSupportFragmentManager(), getString(R.string.storage_permission));
} else { // Show the permission request directly.
// Request the storage permission. The export will be run when it finishes.
ActivityCompat.requestPermissions(this, new String[] {Manifest.permission.WRITE_EXTERNAL_STORAGE}, 0);
}
@Override
- public void onCloseImportExportStoragePermissionDialog() {
+ public void onCloseStoragePermissionDialog() {
// Request the write external storage permission. The import/export will be run when it finishes.
ActivityCompat.requestPermissions(this, new String[] {Manifest.permission.WRITE_EXTERNAL_STORAGE}, 0);
}
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
- // Get a handle for the import/export spinner.
- Spinner importExportSpinner = findViewById(R.id.import_export_spinner);
+ // Get a handle for the import radiobutton.
+ RadioButton importRadioButton = findViewById(R.id.import_radiobutton);
- // Check to see if import or export is selected.
- if (importExportSpinner.getSelectedItemPosition() == IMPORT) { // Import is selected.
- // Check to see if the storage permission was granted. If the dialog was canceled the grant results will be empty.
- if ((grantResults.length > 0) && (grantResults[0] == PackageManager.PERMISSION_GRANTED)) { // The storage permission was granted.
+ // Check to see if the storage permission was granted. If the dialog was canceled the grant results will be empty.
+ if ((grantResults.length > 0) && (grantResults[0] == PackageManager.PERMISSION_GRANTED)) { // The storage permission was granted.
+ // Run the import or export methods according to which radio button is selected.
+ if (importRadioButton.isChecked()) { // Import is selected.
// Import the settings.
importSettings();
- } else { // The storage permission was not granted.
- // Display an error snackbar.
- Snackbar.make(importExportSpinner, getString(R.string.cannot_import), Snackbar.LENGTH_LONG).show();
- }
- } else { // Export is selected.
- // Check to see if the storage permission was granted. If the dialog was canceled the grant results will be empty.
- if ((grantResults.length > 0) && (grantResults[0] == PackageManager.PERMISSION_GRANTED)) { // The storage permission was granted.
+ } else { // Export is selected.
// Export the settings.
exportSettings();
- } else { // The storage permission was not granted.
- // Display an error snackbar.
- Snackbar.make(importExportSpinner, getString(R.string.cannot_export), Snackbar.LENGTH_LONG).show();
}
+ } else { // The storage permission was not granted.
+ // Display an error snackbar.
+ Snackbar.make(importRadioButton, getString(R.string.cannot_use_location), Snackbar.LENGTH_LONG).show();
}
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
- // Don't do anything if the user pressed back from the file picker.
- if (resultCode == Activity.RESULT_OK) {
- // Get a handle for the file name EditText.
- EditText fileNameEditText = findViewById(R.id.file_name_edittext);
-
- // Get the file name URI.
- Uri fileNameUri = data.getData();
-
- // Remove the lint warning that the file name URI might be null.
- assert fileNameUri != null;
-
- // Get the raw file name path.
- String rawFileNamePath = fileNameUri.getPath();
-
- // Remove the warning that the file name path might be null.
- assert rawFileNamePath != null;
-
- // Check to see if the file name Path includes a valid storage location.
- if (rawFileNamePath.contains(":")) { // The path is valid.
- // Split the path into the initial content uri and the final path information.
- String fileNameContentPath = rawFileNamePath.substring(0, rawFileNamePath.indexOf(":"));
- String fileNameFinalPath = rawFileNamePath.substring(rawFileNamePath.indexOf(":") + 1);
-
- // Create the file name path string.
- String fileNamePath;
-
- // Construct the file name path.
- switch (fileNameContentPath) {
- // The documents home has a special content path.
- case "/document/home":
- fileNamePath = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOCUMENTS) + "/" + fileNameFinalPath;
- break;
+ switch (requestCode) {
+ case (BROWSE_RESULT_CODE):
+ // Don't do anything if the user pressed back from the file picker.
+ if (resultCode == Activity.RESULT_OK) {
+ // Get a handle for the file name edit text.
+ EditText fileNameEditText = findViewById(R.id.file_name_edittext);
+
+ // Get the file name URI.
+ Uri fileNameUri = data.getData();
+
+ // Remove the lint warning that the file name URI might be null.
+ assert fileNameUri != null;
+
+ // Get the raw file name path.
+ String rawFileNamePath = fileNameUri.getPath();
+
+ // Remove the incorrect lint warning that the file name path might be null.
+ assert rawFileNamePath != null;
+
+ // Check to see if the file name Path includes a valid storage location.
+ if (rawFileNamePath.contains(":")) { // The path is valid.
+ // Split the path into the initial content uri and the final path information.
+ String fileNameContentPath = rawFileNamePath.substring(0, rawFileNamePath.indexOf(":"));
+ String fileNameFinalPath = rawFileNamePath.substring(rawFileNamePath.indexOf(":") + 1);
+
+ // Create the file name path string.
+ String fileNamePath;
+
+ // Construct the file name path.
+ switch (fileNameContentPath) {
+ // The documents home has a special content path.
+ case "/document/home":
+ fileNamePath = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOCUMENTS) + "/" + fileNameFinalPath;
+ break;
+
+ // Everything else for the primary user should be in `/document/primary`.
+ case "/document/primary":
+ fileNamePath = Environment.getExternalStorageDirectory() + "/" + fileNameFinalPath;
+ break;
+
+ // Just in case, catch everything else and place it in the external storage directory.
+ default:
+ fileNamePath = Environment.getExternalStorageDirectory() + "/" + fileNameFinalPath;
+ break;
+ }
+
+ // Set the file name path as the text of the file name EditText.
+ fileNameEditText.setText(fileNamePath);
+ } else { // The path is invalid.
+ Snackbar.make(fileNameEditText, rawFileNamePath + " " + getString(R.string.invalid_location), Snackbar.LENGTH_INDEFINITE).show();
+ }
+ }
+ break;
- // Everything else for the primary user should be in `/document/primary`.
- case "/document/primary":
- fileNamePath = Environment.getExternalStorageDirectory() + "/" + fileNameFinalPath;
- break;
+ case OPENPGP_EXPORT_RESULT_CODE:
+ // Get the temporary unencrypted export file.
+ File temporaryUnencryptedExportFile = new File(getApplicationContext().getCacheDir() + "/" + getString(R.string.settings_pbs));
- // Just in case, catch everything else and place it in the external storage directory.
- default:
- fileNamePath = Environment.getExternalStorageDirectory() + "/" + fileNameFinalPath;
- break;
+ // Delete the temporary unencrypted export file if it exists.
+ if (temporaryUnencryptedExportFile.exists()) {
+ //noinspection ResultOfMethodCallIgnored
+ temporaryUnencryptedExportFile.delete();
}
-
- // Set the file name path as the text of the file name EditText.
- fileNameEditText.setText(fileNamePath);
- } else { // The path is invalid.
- Snackbar.make(fileNameEditText, rawFileNamePath + " + " + getString(R.string.invalid_location), Snackbar.LENGTH_INDEFINITE).show();
- }
+ break;
}
}
// Instantiate the import export database helper.
ImportExportDatabaseHelper importExportDatabaseHelper = new ImportExportDatabaseHelper();
- // Get the export file.
- File exportFile = new File(fileNameEditText.getText().toString());
+ // Get the export file string.
+ String exportFileString = fileNameEditText.getText().toString();
+
+ // Get the export and temporary unencrypted export files.
+ File exportFile = new File(exportFileString);
+ File temporaryUnencryptedExportFile = new File(getApplicationContext().getCacheDir() + "/" + getString(R.string.settings_pbs));
- // Initialize the export status string.
- String exportStatus = "";
+ // Create an export status string.
+ String exportStatus;
// Export according to the encryption type.
switch (encryptionSpinner.getSelectedItemPosition()) {
case NO_ENCRYPTION:
// Export the unencrypted file.
exportStatus = importExportDatabaseHelper.exportUnencrypted(exportFile, this);
+
+ // Show a disposition snackbar.
+ if (exportStatus.equals(ImportExportDatabaseHelper.EXPORT_SUCCESSFUL)) {
+ Snackbar.make(fileNameEditText, getString(R.string.export_successful), Snackbar.LENGTH_SHORT).show();
+ } else {
+ Snackbar.make(fileNameEditText, getString(R.string.export_failed) + " " + exportStatus, Snackbar.LENGTH_INDEFINITE).show();
+ }
break;
case PASSWORD_ENCRYPTION:
- // Use a private temporary export location.
- File temporaryUnencryptedExportFile = new File(getApplicationContext().getCacheDir() + "/export.temp");
-
- // Create an unencrypted export in the private location.
+ // Create an unencrypted export in a private directory.
exportStatus = importExportDatabaseHelper.exportUnencrypted(temporaryUnencryptedExportFile, this);
try {
secureRandom.nextBytes(saltByteArray);
// Convert the encryption password to a byte array.
- byte[] encryptionPasswordByteArray = encryptionPasswordString.getBytes("UTF-8");
+ byte[] encryptionPasswordByteArray = encryptionPasswordString.getBytes(StandardCharsets.UTF_8);
// Append the salt to the encryption password byte array. This protects against rainbow table attacks.
byte[] encryptionPasswordWithSaltByteArray = new byte[encryptionPasswordByteArray.length + saltByteArray.length];
} catch (Exception exception) {
exportStatus = exception.toString();
}
+
+ // Show a disposition snackbar.
+ if (exportStatus.equals(ImportExportDatabaseHelper.EXPORT_SUCCESSFUL)) {
+ Snackbar.make(fileNameEditText, getString(R.string.export_successful), Snackbar.LENGTH_SHORT).show();
+ } else {
+ Snackbar.make(fileNameEditText, getString(R.string.export_failed) + " " + exportStatus, Snackbar.LENGTH_INDEFINITE).show();
+ }
break;
- case GPG_ENCRYPTION:
+ case OPENPGP_ENCRYPTION:
+ // Create an unencrypted export in the private location.
+ importExportDatabaseHelper.exportUnencrypted(temporaryUnencryptedExportFile, this);
+
+ // Create an encryption intent for OpenKeychain.
+ Intent openKeychainEncryptIntent = new Intent("org.sufficientlysecure.keychain.action.ENCRYPT_DATA");
+
+ // Include the temporary unencrypted export file URI.
+ openKeychainEncryptIntent.setData(FileProvider.getUriForFile(this, getString(R.string.file_provider), temporaryUnencryptedExportFile));
+ // Allow OpenKeychain to read the file URI.
+ openKeychainEncryptIntent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
+
+ // Send the intent to the OpenKeychain package.
+ openKeychainEncryptIntent.setPackage("org.sufficientlysecure.keychain");
+
+ // Make it so.
+ startActivityForResult(openKeychainEncryptIntent, OPENPGP_EXPORT_RESULT_CODE);
break;
}
- // Show a disposition snackbar.
- if (exportStatus.equals(ImportExportDatabaseHelper.EXPORT_SUCCESSFUL)) {
- Snackbar.make(fileNameEditText, getString(R.string.export_successful), Snackbar.LENGTH_SHORT).show();
- } else {
- Snackbar.make(fileNameEditText, getString(R.string.export_failed) + " " + exportStatus, Snackbar.LENGTH_INDEFINITE).show();
- }
+ // Add the file to the list of recent files. This doesn't currently work, but maybe it will someday.
+ MediaScannerConnection.scanFile(this, new String[] {exportFileString}, new String[] {"application/x-sqlite3"}, null);
}
private void importSettings() {
case PASSWORD_ENCRYPTION:
// Use a private temporary import location.
- File temporaryUnencryptedImportFile = new File(getApplicationContext().getCacheDir() + "/import.temp");
+ File temporaryUnencryptedImportFile = new File(getApplicationContext().getCacheDir() + "/" + getString(R.string.settings_pbs));
try {
// Create an encrypted import file input stream.
encryptedImportFileInputStream.read(initializationVector);
// Convert the encryption password to a byte array.
- byte[] encryptionPasswordByteArray = encryptionPasswordString.getBytes("UTF-8");
+ byte[] encryptionPasswordByteArray = encryptionPasswordString.getBytes(StandardCharsets.UTF_8);
// Append the salt to the encryption password byte array. This protects against rainbow table attacks.
byte[] encryptionPasswordWithSaltByteArray = new byte[encryptionPasswordByteArray.length + saltByteArray.length];
}
break;
- case GPG_ENCRYPTION:
+ case OPENPGP_ENCRYPTION:
+ try {
+ // Create an decryption intent for OpenKeychain.
+ Intent openKeychainDecryptIntent = new Intent("org.sufficientlysecure.keychain.action.DECRYPT_DATA");
+
+ // Include the URI to be decrypted.
+ openKeychainDecryptIntent.setData(FileProvider.getUriForFile(this, getString(R.string.file_provider), importFile));
+ // Allow OpenKeychain to read the file URI.
+ openKeychainDecryptIntent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
+
+ // Send the intent to the OpenKeychain package.
+ openKeychainDecryptIntent.setPackage("org.sufficientlysecure.keychain");
+
+ // Make it so.
+ startActivity(openKeychainDecryptIntent);
+ } catch (IllegalArgumentException exception) { // The file import location is not valid.
+ // Display a snack bar with the import error.
+ Snackbar.make(fileNameEditText, getString(R.string.import_failed) + " " + exception.toString(), Snackbar.LENGTH_INDEFINITE).show();
+ }
break;
}
// Make it so.
startActivity(restartIntent);
- } else { // The import was not successful.
+ } else if (!(encryptionSpinner.getSelectedItemPosition() == OPENPGP_ENCRYPTION)){ // The import was not successful.
// Display a snack bar with the import error.
Snackbar.make(fileNameEditText, getString(R.string.import_failed) + " " + importStatus, Snackbar.LENGTH_INDEFINITE).show();
}