open-keychain/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/remote/ui/RemoteDisplayTransferCodeActivity.java
2020-05-30 15:47:09 +02:00

115 lines
4.7 KiB
Java

/*
* Copyright (C) 2017 Schürmann & Breitmoser GbR
*
* 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.remote.ui;
import java.nio.CharBuffer;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.app.Dialog;
import android.content.DialogInterface;
import android.os.Bundle;
import androidx.annotation.NonNull;
import androidx.fragment.app.DialogFragment;
import androidx.fragment.app.FragmentActivity;
import android.view.ContextThemeWrapper;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.TextView;
import org.sufficientlysecure.keychain.R;
import org.sufficientlysecure.keychain.ui.dialog.CustomAlertDialogBuilder;
import org.sufficientlysecure.keychain.ui.util.ThemeChanger;
import org.sufficientlysecure.keychain.ui.widget.PrefixedEditText;
import org.sufficientlysecure.keychain.util.Numeric9x4PassphraseUtil;
import org.sufficientlysecure.keychain.util.Passphrase;
public class RemoteDisplayTransferCodeActivity extends FragmentActivity {
public static final String EXTRA_TRANSFER_CODE = "transfer_code";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (savedInstanceState == null) {
DisplayTransferCodeDialogFragment frag = new DisplayTransferCodeDialogFragment();
frag.setArguments(getIntent().getExtras());
frag.show(getSupportFragmentManager(), "displayTransferCode");
}
}
public static class DisplayTransferCodeDialogFragment extends DialogFragment {
@NonNull
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
final Activity activity = getActivity();
Passphrase transferCode = getArguments().getParcelable(EXTRA_TRANSFER_CODE);
ContextThemeWrapper theme = ThemeChanger.getDialogThemeWrapper(activity);
CustomAlertDialogBuilder alert = new CustomAlertDialogBuilder(theme);
@SuppressLint("InflateParams")
View view = LayoutInflater.from(theme).inflate(R.layout.api_display_transfer_code, null, false);
alert.setView(view);
alert.setPositiveButton(R.string.button_got_it, (dialog, which) -> dismiss());
TextView[] transferCodeTextViews = new TextView[9];
transferCodeTextViews[0] = view.findViewById(R.id.transfer_code_block_1);
transferCodeTextViews[1] = view.findViewById(R.id.transfer_code_block_2);
transferCodeTextViews[2] = view.findViewById(R.id.transfer_code_block_3);
transferCodeTextViews[3] = view.findViewById(R.id.transfer_code_block_4);
transferCodeTextViews[4] = view.findViewById(R.id.transfer_code_block_5);
transferCodeTextViews[5] = view.findViewById(R.id.transfer_code_block_6);
transferCodeTextViews[6] = view.findViewById(R.id.transfer_code_block_7);
transferCodeTextViews[7] = view.findViewById(R.id.transfer_code_block_8);
transferCodeTextViews[8] = view.findViewById(R.id.transfer_code_block_9);
setTransferCode(transferCodeTextViews, transferCode);
return alert.create();
}
private void setTransferCode(TextView[] view, Passphrase transferCode) {
CharBuffer transferCodeChars = CharBuffer.wrap(transferCode.getCharArray()).asReadOnlyBuffer();
if (!Numeric9x4PassphraseUtil.isNumeric9x4Passphrase(transferCodeChars)) {
throw new IllegalStateException("Illegal passphrase format!");
}
PrefixedEditText prefixedEditText = (PrefixedEditText) view[0];
prefixedEditText.setHint("34");
prefixedEditText.setPrefix(transferCodeChars.subSequence(0, 2));
prefixedEditText.setText(transferCodeChars.subSequence(2, 4));
for (int i = 1; i < 9; i++) {
view[i].setText(transferCodeChars.subSequence(i*5, i*5+4));
}
}
@Override
public void onDismiss(DialogInterface dialog) {
super.onDismiss(dialog);
getActivity().finish();
}
}
}