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/*
* Copyright (C) 2014 Dominik Schürmann <dominik@dominikschuermann.de>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.sufficientlysecure.keychain.helper;
import android.app.ProgressDialog;
import android.content.DialogInterface;
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;
import org.sufficientlysecure.keychain.Constants;
import org.sufficientlysecure.keychain.R;
import org.sufficientlysecure.keychain.compatibility.DialogFragmentWorkaround;
import org.sufficientlysecure.keychain.pgp.exception.PgpGeneralException;
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;
public class ExportHelper {
protected FileDialogFragment mFileDialog;
protected String mExportFilename;
ActionBarActivity mActivity;
public ExportHelper(ActionBarActivity activity) {
super();
this.mActivity = activity;
}
public void deleteKey(Uri dataUri, Handler deleteHandler) {
try {
long masterKeyId = new ProviderHelper(mActivity).getCachedPublicKeyRing(dataUri)
.extractOrGetMasterKeyId();
// Create a new Messenger for the communication back
Messenger messenger = new Messenger(deleteHandler);
DeleteKeyDialogFragment deleteKeyDialog = DeleteKeyDialogFragment.newInstance(messenger,
new long[]{ masterKeyId });
deleteKeyDialog.show(mActivity.getSupportFragmentManager(), "deleteKeyDialog");
} catch (PgpGeneralException e) {
Log.e(Constants.TAG, "key not found!", e);
}
}
/**
* Show dialog where to export keys
*/
public void showExportKeysDialog(final long[] masterKeyIds, final String exportFilename,
final boolean showSecretCheckbox) {
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(masterKeyIds, data.getBoolean(FileDialogFragment.MESSAGE_DATA_CHECKED));
}
}
};
// 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 (masterKeyIds == null) {
// export all keys
title = mActivity.getString(R.string.title_export_keys);
} else {
// export only key specified at data uri
title = mActivity.getString(R.string.title_export_key);
}
String message = mActivity.getString(R.string.specify_file_to_export_to);
String checkMsg = showSecretCheckbox ?
mActivity.getString(R.string.also_export_secret_keys) : null;
mFileDialog = FileDialogFragment.newInstance(messenger, title, message,
exportFilename, checkMsg);
mFileDialog.show(mActivity.getSupportFragmentManager(), "fileDialog");
}
});
}
/**
* Export keys
*/
public void exportKeys(long[] masterKeyIds, boolean exportSecret) {
Log.d(Constants.TAG, "exportKeys started");
// Send all information needed to service to export key in other thread
final Intent intent = new Intent(mActivity, KeychainIntentService.class);
intent.setAction(KeychainIntentService.ACTION_EXPORT_KEYRING);
// fill values for this action
Bundle data = new Bundle();
data.putString(KeychainIntentService.EXPORT_FILENAME, mExportFilename);
data.putBoolean(KeychainIntentService.EXPORT_SECRET, exportSecret);
if (masterKeyIds == null) {
data.putBoolean(KeychainIntentService.EXPORT_ALL, true);
} else {
data.putLongArray(KeychainIntentService.EXPORT_KEY_RING_MASTER_KEY_ID, masterKeyIds);
}
intent.putExtra(KeychainIntentService.EXTRA_DATA, data);
// Message is received after exporting is done in KeychainIntentService
KeychainIntentServiceHandler exportHandler = new KeychainIntentServiceHandler(mActivity,
mActivity.getString(R.string.progress_exporting),
ProgressDialog.STYLE_HORIZONTAL,
true,
new DialogInterface.OnCancelListener() {
@Override
public void onCancel(DialogInterface dialogInterface) {
mActivity.stopService(intent);
}
}) {
public void handleMessage(Message message) {
// handle messages by standard KeychainIntentServiceHandler 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 = mActivity.getString(R.string.key_exported);
} else if (exported > 0) {
toastMessage = mActivity.getString(R.string.keys_exported, exported);
} else {
toastMessage = mActivity.getString(R.string.no_keys_exported);
}
Toast.makeText(mActivity, 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(mActivity);
// start service with intent
mActivity.startService(intent);
}
}
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