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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.ui;
import android.database.Cursor;
import android.graphics.Color;
import android.net.Uri;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.LoaderManager;
import android.support.v4.content.CursorLoader;
import android.support.v4.content.Loader;
import android.text.format.DateFormat;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.TextView;
import org.sufficientlysecure.keychain.Constants;
import org.sufficientlysecure.keychain.R;
import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
import org.sufficientlysecure.keychain.provider.KeychainContract.Keys;
import org.sufficientlysecure.keychain.ui.adapter.ViewKeyKeysAdapter;
import org.sufficientlysecure.keychain.util.Log;
import java.util.Date;
public class ViewKeyKeysFragment extends Fragment implements
LoaderManager.LoaderCallbacks<Cursor> {
public static final String ARG_DATA_URI = "uri";
private LinearLayout mContainer;
private TextView mAlgorithm;
private TextView mKeyId;
private TextView mExpiry;
private TextView mCreation;
private TextView mFingerprint;
private TextView mSecretKey;
private ListView mKeys;
private static final int LOADER_ID_UNIFIED = 0;
private static final int LOADER_ID_KEYS = 1;
private ViewKeyKeysAdapter mKeysAdapter;
private Uri mDataUri;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.view_key_keys_fragment, container, false);
mContainer = (LinearLayout) view.findViewById(R.id.container);
mKeyId = (TextView) view.findViewById(R.id.key_id);
mAlgorithm = (TextView) view.findViewById(R.id.algorithm);
mCreation = (TextView) view.findViewById(R.id.creation);
mExpiry = (TextView) view.findViewById(R.id.expiry);
mFingerprint = (TextView) view.findViewById(R.id.view_key_fingerprint);
mSecretKey = (TextView) view.findViewById(R.id.secret_key);
mKeys = (ListView) view.findViewById(R.id.keys);
return view;
}
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
Uri dataUri = getArguments().getParcelable(ARG_DATA_URI);
if (dataUri == null) {
Log.e(Constants.TAG, "Data missing. Should be Uri of key!");
getActivity().finish();
return;
}
loadData(dataUri);
}
private void loadData(Uri dataUri) {
getActivity().setProgressBarIndeterminateVisibility(true);
mContainer.setVisibility(View.GONE);
mDataUri = dataUri;
Log.i(Constants.TAG, "mDataUri: " + mDataUri.toString());
mKeysAdapter = new ViewKeyKeysAdapter(getActivity(), null, 0);
mKeys.setAdapter(mKeysAdapter);
// Prepare the loaders. Either re-connect with an existing ones,
// or start new ones.
getLoaderManager().initLoader(LOADER_ID_UNIFIED, null, this);
getLoaderManager().initLoader(LOADER_ID_KEYS, null, this);
}
static final String[] UNIFIED_PROJECTION = new String[] {
KeyRings._ID, KeyRings.MASTER_KEY_ID, KeyRings.HAS_ANY_SECRET,
KeyRings.USER_ID, KeyRings.FINGERPRINT,
KeyRings.ALGORITHM, KeyRings.KEY_SIZE, KeyRings.CREATION, KeyRings.EXPIRY,
};
static final int INDEX_UNIFIED_MKI = 1;
static final int INDEX_UNIFIED_HAS_ANY_SECRET = 2;
static final int INDEX_UNIFIED_UID = 3;
static final int INDEX_UNIFIED_FINGERPRINT = 4;
static final int INDEX_UNIFIED_ALGORITHM = 5;
static final int INDEX_UNIFIED_KEY_SIZE = 6;
static final int INDEX_UNIFIED_CREATION = 7;
static final int INDEX_UNIFIED_EXPIRY = 8;
static final String[] KEYS_PROJECTION = new String[] {
Keys._ID,
Keys.KEY_ID, Keys.RANK, Keys.ALGORITHM, Keys.KEY_SIZE, Keys.HAS_SECRET,
Keys.CAN_CERTIFY, Keys.CAN_ENCRYPT, Keys.CAN_SIGN, Keys.IS_REVOKED,
Keys.CREATION, Keys.EXPIRY, Keys.FINGERPRINT
};
static final int KEYS_INDEX_CAN_ENCRYPT = 7;
public Loader<Cursor> onCreateLoader(int id, Bundle args) {
switch (id) {
case LOADER_ID_UNIFIED: {
Uri baseUri = KeyRings.buildUnifiedKeyRingUri(mDataUri);
return new CursorLoader(getActivity(), baseUri, UNIFIED_PROJECTION, null, null, null);
}
case LOADER_ID_KEYS: {
Uri baseUri = Keys.buildKeysUri(mDataUri);
return new CursorLoader(getActivity(), baseUri, KEYS_PROJECTION, null, null, null);
}
default:
return null;
}
}
public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
/* TODO better error handling? May cause problems when a key is deleted,
* because the notification triggers faster than the activity closes.
*/
// Avoid NullPointerExceptions...
if(data.getCount() == 0) {
return;
}
// Swap the new cursor in. (The framework will take care of closing the
// old cursor once we return.)
switch (loader.getId()) {
case LOADER_ID_UNIFIED: {
if (data.moveToFirst()) {
if (data.getInt(INDEX_UNIFIED_HAS_ANY_SECRET) != 0) {
mSecretKey.setTextColor(getResources().getColor(R.color.emphasis));
mSecretKey.setText(R.string.secret_key_yes);
} else {
mSecretKey.setTextColor(Color.BLACK);
mSecretKey.setText(getResources().getString(R.string.secret_key_no));
}
// get key id from MASTER_KEY_ID
long masterKeyId = data.getLong(INDEX_UNIFIED_MKI);
String keyIdStr = PgpKeyHelper.convertKeyIdToHex(masterKeyId);
mKeyId.setText(keyIdStr);
// get creation date from CREATION
if (data.isNull(INDEX_UNIFIED_CREATION)) {
mCreation.setText(R.string.none);
} else {
Date creationDate = new Date(data.getLong(INDEX_UNIFIED_CREATION) * 1000);
mCreation.setText(
DateFormat.getDateFormat(getActivity().getApplicationContext()).format(
creationDate));
}
// get expiry date from EXPIRY
if (data.isNull(INDEX_UNIFIED_EXPIRY)) {
mExpiry.setText(R.string.none);
} else {
Date expiryDate = new Date(data.getLong(INDEX_UNIFIED_EXPIRY) * 1000);
mExpiry.setText(
DateFormat.getDateFormat(getActivity().getApplicationContext()).format(
expiryDate));
}
String algorithmStr = PgpKeyHelper.getAlgorithmInfo(
getActivity(),
data.getInt(INDEX_UNIFIED_ALGORITHM),
data.getInt(INDEX_UNIFIED_KEY_SIZE)
);
mAlgorithm.setText(algorithmStr);
byte[] fingerprintBlob = data.getBlob(INDEX_UNIFIED_FINGERPRINT);
String fingerprint = PgpKeyHelper.convertFingerprintToHex(fingerprintBlob);
mFingerprint.setText(PgpKeyHelper.colorizeFingerprint(fingerprint));
break;
}
}
case LOADER_ID_KEYS:
mKeysAdapter.swapCursor(data);
break;
}
getActivity().setProgressBarIndeterminateVisibility(false);
mContainer.setVisibility(View.VISIBLE);
}
/**
* This is called when the last Cursor provided to onLoadFinished() above is about to be closed.
* We need to make sure we are no longer using it.
*/
public void onLoaderReset(Loader<Cursor> loader) {
switch (loader.getId()) {
case LOADER_ID_KEYS:
mKeysAdapter.swapCursor(null);
break;
}
}
}
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