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/*
* Copyright (C) 2015 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.ui;
import android.app.Activity;
import android.content.Intent;
import android.database.Cursor;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import org.sufficientlysecure.keychain.Constants;
import org.sufficientlysecure.keychain.R;
import org.sufficientlysecure.keychain.provider.KeychainContract;
import org.sufficientlysecure.keychain.service.PassphraseCacheService;
import org.sufficientlysecure.keychain.util.ExportHelper;
import java.util.ArrayList;
public class BackupFragment extends Fragment {
// This ids for multiple key export.
private ArrayList<Long> mIdsForRepeatAskPassphrase;
// This index for remembering the number of master key.
private int mIndex;
static final int REQUEST_REPEAT_PASSPHRASE = 1;
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.backup_fragment, container, false);
View mBackupAll = view.findViewById(R.id.backup_all);
View mBackupPublicKeys = view.findViewById(R.id.backup_public_keys);
mBackupAll.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
exportToFile(true);
}
});
mBackupPublicKeys.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
exportToFile(false);
}
});
return view;
}
private void exportToFile(boolean includeSecretKeys) {
if (includeSecretKeys) {
mIdsForRepeatAskPassphrase = new ArrayList<>();
Cursor cursor = getActivity().getContentResolver().query(
KeychainContract.KeyRingData.buildSecretKeyRingUri(), null, null, null, null);
try {
if (cursor != null) {
int keyIdColumn = cursor.getColumnIndex(KeychainContract.KeyRingData.MASTER_KEY_ID);
while (cursor.moveToNext()) {
long keyId = cursor.getLong(keyIdColumn);
try {
if (PassphraseCacheService.getCachedPassphrase(
getActivity(), keyId, keyId) == null) {
mIdsForRepeatAskPassphrase.add(keyId);
}
} catch (PassphraseCacheService.KeyNotFoundException e) {
// This happens when the master key is stripped
// and ignore this key.
}
}
}
} finally {
if (cursor != null) {
cursor.close();
}
}
mIndex = 0;
if (mIdsForRepeatAskPassphrase.size() != 0) {
startPassphraseActivity();
return;
}
ExportHelper exportHelper = new ExportHelper(getActivity());
exportHelper.showExportKeysDialog(null, Constants.Path.APP_DIR_FILE, true);
} else {
ExportHelper exportHelper = new ExportHelper(getActivity());
exportHelper.showExportKeysDialog(null, Constants.Path.APP_DIR_FILE, false);
}
}
private void startPassphraseActivity() {
Intent intent = new Intent(getActivity(), PassphraseDialogActivity.class);
long masterKeyId = mIdsForRepeatAskPassphrase.get(mIndex++);
intent.putExtra(PassphraseDialogActivity.EXTRA_SUBKEY_ID, masterKeyId);
startActivityForResult(intent, REQUEST_REPEAT_PASSPHRASE);
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == REQUEST_REPEAT_PASSPHRASE) {
if (resultCode != Activity.RESULT_OK) {
return;
}
if (mIndex < mIdsForRepeatAskPassphrase.size()) {
startPassphraseActivity();
return;
}
ExportHelper exportHelper = new ExportHelper(getActivity());
exportHelper.showExportKeysDialog(null, Constants.Path.APP_DIR_FILE, true);
}
}
}
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