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/*
* Copyright (C) 2013-2014 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.ui.dialog;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.DialogInterface;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.os.Message;
import android.os.Messenger;
import android.os.RemoteException;
import android.support.v4.app.DialogFragment;
import android.support.v4.app.FragmentActivity;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.CheckBox;
import android.widget.LinearLayout;
import android.widget.TextView;
import org.sufficientlysecure.keychain.Constants;
import org.sufficientlysecure.keychain.Id;
import org.sufficientlysecure.keychain.R;
import org.sufficientlysecure.keychain.provider.KeychainContract;
import org.sufficientlysecure.keychain.provider.KeychainDatabase;
import org.sufficientlysecure.keychain.provider.ProviderHelper;
import org.sufficientlysecure.keychain.util.Log;
import java.util.ArrayList;
public class DeleteKeyDialogFragment extends DialogFragment {
private static final String ARG_MESSENGER = "messenger";
private static final String ARG_DELETE_KEY_RING_ROW_IDS = "delete_key_ring_row_ids";
public static final int MESSAGE_OKAY = 1;
public static final int MESSAGE_ERROR = 0;
private boolean isSingleSelection = false;
private TextView mainMessage;
private CheckBox checkDeleteSecret;
private LinearLayout deleteSecretKeyView;
private View inflateView;
private Messenger mMessenger;
/**
* Creates new instance of this delete file dialog fragment
*/
public static DeleteKeyDialogFragment newInstance(Messenger messenger, long[] keyRingRowIds
) {
DeleteKeyDialogFragment frag = new DeleteKeyDialogFragment();
Bundle args = new Bundle();
args.putParcelable(ARG_MESSENGER, messenger);
args.putLongArray(ARG_DELETE_KEY_RING_ROW_IDS, keyRingRowIds);
//We don't need the key type
frag.setArguments(args);
return frag;
}
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
final FragmentActivity activity = getActivity();
mMessenger = getArguments().getParcelable(ARG_MESSENGER);
final long[] keyRingRowIds = getArguments().getLongArray(ARG_DELETE_KEY_RING_ROW_IDS);
AlertDialog.Builder builder = new AlertDialog.Builder(activity);
//Setup custom View to display in AlertDialog
LayoutInflater inflater = activity.getLayoutInflater();
inflateView = inflater.inflate(R.layout.view_key_delete_fragment, null);
builder.setView(inflateView);
deleteSecretKeyView = (LinearLayout) inflateView.findViewById(R.id.deleteSecretKeyView);
mainMessage = (TextView) inflateView.findViewById(R.id.mainMessage);
checkDeleteSecret = (CheckBox) inflateView.findViewById(R.id.checkDeleteSecret);
builder.setTitle(R.string.warning);
//If only a single key has been selected
if (keyRingRowIds.length == 1) {
Uri dataUri;
ArrayList<Long> publicKeyRings; //Any one will do
isSingleSelection = true;
long selectedRow = keyRingRowIds[0];
long keyType;
publicKeyRings = ProviderHelper.getPublicKeyRingsRowIds(activity);
if (publicKeyRings.contains(selectedRow)) {
//TODO Should be a better method to do this other than getting all the KeyRings
dataUri = KeychainContract.KeyRings.buildPublicKeyRingsUri(String.valueOf(selectedRow));
keyType = Id.type.public_key;
} else {
dataUri = KeychainContract.KeyRings.buildSecretKeyRingsUri(String.valueOf(selectedRow));
keyType = Id.type.secret_key;
}
String userId = ProviderHelper.getUserId(activity, dataUri);
//Hide the Checkbox and TextView since this is a single selection,user will be notified thru message
deleteSecretKeyView.setVisibility(View.GONE);
//Set message depending on which key it is.
mainMessage.setText(getString(keyType == Id.type.secret_key ? R.string.secret_key_deletion_confirmation
: R.string.public_key_deletetion_confirmation, userId));
} else {
deleteSecretKeyView.setVisibility(View.VISIBLE);
mainMessage.setText(R.string.key_deletion_confirmation_multi);
}
builder.setIcon(R.drawable.ic_dialog_alert_holo_light);
builder.setPositiveButton(R.string.btn_delete, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
Uri queryUri = KeychainContract.KeyRings.buildUnifiedKeyRingsUri();
String[] projection = new String[]{
KeychainContract.KeyRings.MASTER_KEY_ID, // 0
KeychainContract.KeyRings.TYPE// 1
};
// make selection with all entries where _ID is one of the given row ids
String selection = KeychainDatabase.Tables.KEY_RINGS + "." +
KeychainContract.KeyRings._ID + " IN(";
String selectionIDs = "";
for (int i = 0; i < keyRingRowIds.length; i++) {
selectionIDs += "'" + String.valueOf(keyRingRowIds[i]) + "'";
if (i + 1 < keyRingRowIds.length)
selectionIDs += ",";
}
selection += selectionIDs + ")";
Cursor cursor = activity.getContentResolver().query(queryUri, projection,
selection, null, null);
long masterKeyId;
long keyType;
boolean isSuccessfullyDeleted;
try {
isSuccessfullyDeleted = false;
while (cursor != null && cursor.moveToNext()) {
masterKeyId = cursor.getLong(0);
keyType = cursor.getLong(1);
Log.d(Constants.TAG, "masterKeyId: " + masterKeyId
+ ", keyType:" + (keyType == KeychainContract.KeyTypes.PUBLIC ? "Public" : "Private"));
if (keyType == KeychainContract.KeyTypes.SECRET) {
if (checkDeleteSecret.isChecked() || isSingleSelection) {
ProviderHelper.deleteUnifiedKeyRing(activity, String.valueOf(masterKeyId), true);
}
} else {
ProviderHelper.deleteUnifiedKeyRing(activity, String.valueOf(masterKeyId), false);
}
}
//Check if the selected rows have actually been deleted
cursor = activity.getContentResolver().query(queryUri, projection, selection, null, null);
if (cursor == null || cursor.getCount() == 0 || !checkDeleteSecret.isChecked()) {
isSuccessfullyDeleted = true;
}
} finally {
if (cursor != null) {
cursor.close();
}
}
dismiss();
if (isSuccessfullyDeleted) {
sendMessageToHandler(MESSAGE_OKAY, null);
} else {
sendMessageToHandler(MESSAGE_ERROR, null);
}
}
});
builder.setNegativeButton(android.R.string.cancel, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int id) {
dismiss();
}
});
return builder.create();
}
/**
* Send message back to handler which is initialized in a activity
*
* @param what Message integer you want to send
*/
private void sendMessageToHandler(Integer what, Bundle data) {
Message msg = Message.obtain();
msg.what = what;
if (data != null) {
msg.setData(data);
}
try {
mMessenger.send(msg);
} catch (RemoteException e) {
Log.w(Constants.TAG, "Exception sending message, Is handler present?", e);
} catch (NullPointerException e) {
Log.w(Constants.TAG, "Messenger is null!", e);
}
}
}
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