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/*
* Copyright (C) 2015 Dominik Schürmann <dominik@dominikschuermann.de>
* Copyright (C) 2015 Vincent Breitmoser <v.breitmoser@mugenguild.com>
*
* 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 java.nio.ByteBuffer;
import java.util.Arrays;
import android.database.Cursor;
import android.os.Bundle;
import android.support.v4.app.LoaderManager.LoaderCallbacks;
import android.support.v4.content.CursorLoader;
import android.support.v4.content.Loader;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.TextView;
import org.bouncycastle.util.encoders.Hex;
import org.sufficientlysecure.keychain.R;
import org.sufficientlysecure.keychain.operations.results.PromoteKeyResult;
import org.sufficientlysecure.keychain.pgp.CanonicalizedSecretKey.SecretKeyType;
import org.sufficientlysecure.keychain.provider.KeychainContract.Keys;
import org.sufficientlysecure.keychain.service.PromoteKeyringParcel;
import org.sufficientlysecure.keychain.ui.base.QueueingCryptoOperationFragment;
import org.sufficientlysecure.keychain.ui.util.KeyFormattingUtils;
public class ViewKeySecurityTokenFragment
extends QueueingCryptoOperationFragment<PromoteKeyringParcel, PromoteKeyResult>
implements LoaderCallbacks<Cursor> {
public static final String ARG_MASTER_KEY_ID = "master_key_id";
public static final String ARG_FINGERPRINT = "fingerprint";
public static final String ARG_USER_ID = "user_id";
public static final String ARG_CARD_AID = "aid";
private byte[][] mFingerprints;
private String mUserId;
private byte[] mCardAid;
private long mMasterKeyId;
private long[] mSubKeyIds;
private Button vButton;
private TextView vStatus;
public static ViewKeySecurityTokenFragment newInstance(long masterKeyId,
byte[] fingerprints, String userId, byte[] aid) {
ViewKeySecurityTokenFragment frag = new ViewKeySecurityTokenFragment();
Bundle args = new Bundle();
args.putLong(ARG_MASTER_KEY_ID, masterKeyId);
args.putByteArray(ARG_FINGERPRINT, fingerprints);
args.putString(ARG_USER_ID, userId);
args.putByteArray(ARG_CARD_AID, aid);
frag.setArguments(args);
return frag;
}
public ViewKeySecurityTokenFragment() {
super(null);
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Bundle args = getArguments();
ByteBuffer buf = ByteBuffer.wrap(args.getByteArray(ARG_FINGERPRINT));
mFingerprints = new byte[buf.remaining()/20][];
for (int i = 0; i < mFingerprints.length; i++) {
mFingerprints[i] = new byte[20];
buf.get(mFingerprints[i]);
}
mUserId = args.getString(ARG_USER_ID);
mCardAid = args.getByteArray(ARG_CARD_AID);
mMasterKeyId = args.getLong(ARG_MASTER_KEY_ID);
getLoaderManager().initLoader(0, null, this);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup superContainer, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.view_key_security_token, null);
TextView vSerNo = (TextView) view.findViewById(R.id.token_serno);
TextView vUserId = (TextView) view.findViewById(R.id.token_userid);
String serno = Hex.toHexString(mCardAid, 10, 4);
vSerNo.setText(getString(R.string.security_token_serial_no, serno));
if (!mUserId.isEmpty()) {
vUserId.setText(getString(R.string.security_token_key_holder, mUserId));
} else {
vUserId.setText(getString(R.string.security_token_key_holder_not_set));
}
vButton = (Button) view.findViewById(R.id.button_bind);
vButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
promoteToSecretKey();
}
});
vStatus = (TextView) view.findViewById(R.id.token_status);
return view;
}
public void promoteToSecretKey() {
long[] subKeyIds = new long[mFingerprints.length];
for (int i = 0; i < subKeyIds.length; i++) {
subKeyIds[i] = KeyFormattingUtils.getKeyIdFromFingerprint(mFingerprints[i]);
}
// mMasterKeyId and mCardAid are already set
mSubKeyIds = subKeyIds;
cryptoOperation();
}
public static final String[] PROJECTION = new String[]{
Keys._ID,
Keys.KEY_ID,
Keys.RANK,
Keys.HAS_SECRET,
Keys.FINGERPRINT
};
// private static final int INDEX_KEY_ID = 1;
// private static final int INDEX_RANK = 2;
private static final int INDEX_HAS_SECRET = 3;
private static final int INDEX_FINGERPRINT = 4;
@Override
public Loader<Cursor> onCreateLoader(int id, Bundle args) {
return new CursorLoader(getActivity(), Keys.buildKeysUri(mMasterKeyId),
PROJECTION, null, null, null);
}
@Override
public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
if (!data.moveToFirst()) {
// wut?
return;
}
boolean allBound = true;
boolean noneBound = true;
do {
SecretKeyType keyType = SecretKeyType.fromNum(data.getInt(INDEX_HAS_SECRET));
byte[] fingerprint = data.getBlob(INDEX_FINGERPRINT);
Integer index = naiveIndexOf(mFingerprints, fingerprint);
if (index == null) {
continue;
}
if (keyType == SecretKeyType.DIVERT_TO_CARD) {
noneBound = false;
} else {
allBound = false;
}
} while (data.moveToNext());
if (allBound) {
vButton.setVisibility(View.GONE);
vStatus.setText(R.string.security_token_status_bound);
} else {
vButton.setVisibility(View.VISIBLE);
vStatus.setText(noneBound
? R.string.security_token_status_unbound
: R.string.security_token_status_partly);
}
}
static private Integer naiveIndexOf(byte[][] haystack, byte[] needle) {
for (int i = 0; i < haystack.length; i++) {
if (Arrays.equals(needle, haystack[i])) {
return i;
}
}
return null;
}
@Override
public void onLoaderReset(Loader<Cursor> loader) {
}
@Override
public PromoteKeyringParcel createOperationInput() {
return new PromoteKeyringParcel(mMasterKeyId, mCardAid, mSubKeyIds);
}
@Override
public void onQueuedOperationSuccess(PromoteKeyResult result) {
result.createNotify(getActivity()).show();
}
}
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