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/*
* Copyright (C) 2014 Dominik Schürmann <dominik@dominikschuermann.de>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.sufficientlysecure.keychain.helper;
import org.sufficientlysecure.keychain.Constants;
import org.sufficientlysecure.keychain.Id;
import org.sufficientlysecure.keychain.R;
import org.sufficientlysecure.keychain.compatibility.DialogFragmentWorkaround;
import org.sufficientlysecure.keychain.provider.ProviderHelper;
import org.sufficientlysecure.keychain.service.KeychainIntentService;
import org.sufficientlysecure.keychain.service.KeychainIntentServiceHandler;
import org.sufficientlysecure.keychain.ui.dialog.DeleteKeyDialogFragment;
import org.sufficientlysecure.keychain.ui.dialog.FileDialogFragment;
import org.sufficientlysecure.keychain.util.Log;
import android.app.ProgressDialog;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.os.Messenger;
import android.support.v7.app.ActionBarActivity;
import android.widget.Toast;
public class ExportHelper {
protected FileDialogFragment mFileDialog;
protected String mExportFilename;
ActionBarActivity activity;
public ExportHelper(ActionBarActivity activity) {
super();
this.activity = activity;
}
public void deleteKey(Uri dataUri, final int keyType, Handler deleteHandler) {
long keyRingRowId = Long.valueOf(dataUri.getLastPathSegment());
// Create a new Messenger for the communication back
Messenger messenger = new Messenger(deleteHandler);
DeleteKeyDialogFragment deleteKeyDialog = DeleteKeyDialogFragment.newInstance(messenger,
new long[] { keyRingRowId }, keyType);
deleteKeyDialog.show(activity.getSupportFragmentManager(), "deleteKeyDialog");
}
/**
* Show dialog where to export keys
*/
public void showExportKeysDialog(final Uri dataUri, final int keyType,
final String exportFilename) {
mExportFilename = exportFilename;
// Message is received after file is selected
Handler returnHandler = new Handler() {
@Override
public void handleMessage(Message message) {
if (message.what == FileDialogFragment.MESSAGE_OKAY) {
Bundle data = message.getData();
mExportFilename = data.getString(FileDialogFragment.MESSAGE_DATA_FILENAME);
exportKeys(dataUri, keyType);
}
}
};
// Create a new Messenger for the communication back
final Messenger messenger = new Messenger(returnHandler);
DialogFragmentWorkaround.INTERFACE.runnableRunDelayed(new Runnable() {
public void run() {
String title = null;
if (dataUri == null) {
// export all keys
title = activity.getString(R.string.title_export_keys);
} else {
// export only key specified at data uri
title = activity.getString(R.string.title_export_key);
}
String message = null;
if (keyType == Id.type.public_key) {
message = activity.getString(R.string.specify_file_to_export_to);
} else {
message = activity.getString(R.string.specify_file_to_export_secret_keys_to);
}
mFileDialog = FileDialogFragment.newInstance(messenger, title, message,
exportFilename, null);
mFileDialog.show(activity.getSupportFragmentManager(), "fileDialog");
}
});
}
/**
* Export keys
*/
public void exportKeys(Uri dataUri, int keyType) {
Log.d(Constants.TAG, "exportKeys started");
// Send all information needed to service to export key in other thread
Intent intent = new Intent(activity, KeychainIntentService.class);
intent.setAction(KeychainIntentService.ACTION_EXPORT_KEYRING);
// fill values for this action
Bundle data = new Bundle();
data.putString(KeychainIntentService.EXPORT_FILENAME, mExportFilename);
data.putInt(KeychainIntentService.EXPORT_KEY_TYPE, keyType);
if (dataUri == null) {
data.putBoolean(KeychainIntentService.EXPORT_ALL, true);
} else {
// TODO: put data uri into service???
long keyRingMasterKeyId = ProviderHelper.getMasterKeyId(activity, dataUri);
data.putLong(KeychainIntentService.EXPORT_KEY_RING_MASTER_KEY_ID, keyRingMasterKeyId);
}
intent.putExtra(KeychainIntentService.EXTRA_DATA, data);
// Message is received after exporting is done in ApgService
KeychainIntentServiceHandler exportHandler = new KeychainIntentServiceHandler(activity,
R.string.progress_exporting, ProgressDialog.STYLE_HORIZONTAL) {
public void handleMessage(Message message) {
// handle messages by standard ApgHandler first
super.handleMessage(message);
if (message.arg1 == KeychainIntentServiceHandler.MESSAGE_OKAY) {
// get returned data bundle
Bundle returnData = message.getData();
int exported = returnData.getInt(KeychainIntentService.RESULT_EXPORT);
String toastMessage;
if (exported == 1) {
toastMessage = activity.getString(R.string.key_exported);
} else if (exported > 0) {
toastMessage = activity.getString(R.string.keys_exported, exported);
} else {
toastMessage = activity.getString(R.string.no_keys_exported);
}
Toast.makeText(activity, toastMessage, Toast.LENGTH_SHORT).show();
}
};
};
// Create a new Messenger for the communication back
Messenger messenger = new Messenger(exportHandler);
intent.putExtra(KeychainIntentService.EXTRA_MESSENGER, messenger);
// show progress dialog
exportHandler.showProgressDialog(activity);
// start service with intent
activity.startService(intent);
}
}
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