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Added Encrypted Backup feature.The Zip File is Password Protected, which is asked from the user at the time of export immediately on click of Export Button.

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This commit is contained in:
Ankit Tiwari
2021-10-15 22:51:52 +05:30
parent 44066e6599
commit 2390568bdf
3 changed files with 25 additions and 10 deletions
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23
app/src/main/java/protect/card_locker/ImportExportActivity.java
View File

@@ -47,6 +47,7 @@ public class ImportExportActivity extends CatimaAppCompatActivity
private String importAlertTitle;
private String importAlertMessage;
private DataFormat importDataFormat;
private String exportPassword;
@Override
protected void onCreate(Bundle savedInstanceState)
@@ -88,7 +89,19 @@ public class ImportExportActivity extends CatimaAppCompatActivity
@Override
public void onClick(View v)
{
chooseFileWithIntent(intentCreateDocumentAction, CHOOSE_EXPORT_LOCATION);
AlertDialog.Builder builder = new AlertDialog.Builder(ImportExportActivity.this);
builder.setTitle(R.string.passwordRequired);
final EditText input = new EditText(ImportExportActivity.this);
input.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_PASSWORD);
builder.setView(input);
builder.setPositiveButton(R.string.ok, (dialogInterface, i) -> {
chooseFileWithIntent(intentCreateDocumentAction, CHOOSE_EXPORT_LOCATION);
exportPassword = input.getText().toString();
});
builder.setNegativeButton(R.string.cancel, (dialogInterface, i) -> dialogInterface.cancel());
builder.show();
}
});
@@ -211,7 +224,7 @@ public class ImportExportActivity extends CatimaAppCompatActivity
importExporter.execute();
}
private void startExport(final OutputStream target, final Uri targetUri, final boolean closeWhenDone)
private void startExport(final OutputStream target, final Uri targetUri,char[] password, final boolean closeWhenDone)
{
ImportExportTask.TaskCompleteListener listener = new ImportExportTask.TaskCompleteListener()
{
@@ -229,7 +242,7 @@ public class ImportExportActivity extends CatimaAppCompatActivity
};
importExporter = new ImportExportTask(ImportExportActivity.this,
DataFormat.Catima, target, listener);
DataFormat.Catima, target,password, listener);
importExporter.execute();
}
@@ -407,6 +420,7 @@ public class ImportExportActivity extends CatimaAppCompatActivity
{
if (requestCode == CHOOSE_EXPORT_LOCATION)
{
OutputStream writer;
if (uri.getScheme() != null)
{
@@ -416,9 +430,8 @@ public class ImportExportActivity extends CatimaAppCompatActivity
{
writer = new FileOutputStream(new File(uri.toString()));
}
Log.e(TAG, "Starting file export with: " + uri.toString());
startExport(writer, uri, true);
startExport(writer, uri,exportPassword.toCharArray(),true);
}
else
{

9
app/src/main/java/protect/card_locker/ImportExportTask.java
View File

@@ -35,7 +35,7 @@ class ImportExportTask extends AsyncTask<Void, Void, ImportExportResult>
/**
* Constructor which will setup a task for exporting to the given file
*/
ImportExportTask(Activity activity, DataFormat format, OutputStream output,
ImportExportTask(Activity activity, DataFormat format, OutputStream output,char[] password,
TaskCompleteListener listener)
{
super();
@@ -43,6 +43,7 @@ class ImportExportTask extends AsyncTask<Void, Void, ImportExportResult>
this.doImport = false;
this.format = format;
this.outputStream = output;
this.password = password;
this.listener = listener;
}
@@ -70,14 +71,14 @@ class ImportExportTask extends AsyncTask<Void, Void, ImportExportResult>
return importResult;
}
private ImportExportResult performExport(Context context, OutputStream stream, DBHelper db)
private ImportExportResult performExport(Context context, OutputStream stream, DBHelper db,char[] password)
{
ImportExportResult result = ImportExportResult.GenericFailure;
try
{
OutputStreamWriter writer = new OutputStreamWriter(stream, StandardCharsets.UTF_8);
result = MultiFormatExporter.exportData(context, db, stream, format,null);
result = MultiFormatExporter.exportData(context, db, stream, format,password);
writer.close();
}
catch (IOException e)
@@ -118,7 +119,7 @@ class ImportExportTask extends AsyncTask<Void, Void, ImportExportResult>
}
else
{
result = performExport(activity.getApplicationContext(), outputStream, db);
result = performExport(activity.getApplicationContext(), outputStream, db,password);
}
return result;