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/*
* Copyright (C) 2014 Dominik Schürmann <dominik@dominikschuermann.de>
* Copyright (C) 2014 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 android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.support.v4.app.LoaderManager;
import android.support.v4.content.CursorLoader;
import android.support.v4.content.Loader;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.ListView;
import org.sufficientlysecure.keychain.Constants;
import org.sufficientlysecure.keychain.R;
import org.sufficientlysecure.keychain.compatibility.DialogFragmentWorkaround;
import org.sufficientlysecure.keychain.provider.KeychainContract;
import org.sufficientlysecure.keychain.provider.KeychainContract.UserPackets;
import org.sufficientlysecure.keychain.provider.ProviderHelper;
import org.sufficientlysecure.keychain.ui.adapter.UserIdsAdapter;
import org.sufficientlysecure.keychain.ui.dialog.UserIdInfoDialogFragment;
import org.sufficientlysecure.keychain.util.Log;
import java.util.Date;
public class ViewKeyFragment extends LoaderFragment implements
LoaderManager.LoaderCallbacks<Cursor> {
public static final String ARG_DATA_URI = "uri";
private ListView mUserIds;
boolean mIsSecret = false;
private static final int LOADER_ID_UNIFIED = 0;
private static final int LOADER_ID_USER_IDS = 1;
private UserIdsAdapter mUserIdsAdapter;
private Uri mDataUri;
ProviderHelper mProviderHelper;
/**
* Creates new instance of this fragment
*/
public static ViewKeyFragment newInstance(Uri dataUri) {
ViewKeyFragment frag = new ViewKeyFragment();
Bundle args = new Bundle();
args.putParcelable(ARG_DATA_URI, dataUri);
frag.setArguments(args);
return frag;
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup superContainer, Bundle savedInstanceState) {
View root = super.onCreateView(inflater, superContainer, savedInstanceState);
View view = inflater.inflate(R.layout.view_key_fragment, getContainer());
mProviderHelper = new ProviderHelper(getActivity());
mUserIds = (ListView) view.findViewById(R.id.view_key_user_ids);
mUserIds.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
showUserIdInfo(position);
}
});
return root;
}
private void showUserIdInfo(final int position) {
if (!mIsSecret) {
final boolean isRevoked = mUserIdsAdapter.getIsRevoked(position);
final int isVerified = mUserIdsAdapter.getIsVerified(position);
DialogFragmentWorkaround.INTERFACE.runnableRunDelayed(new Runnable() {
public void run() {
UserIdInfoDialogFragment dialogFragment =
UserIdInfoDialogFragment.newInstance(isRevoked, isVerified);
dialogFragment.show(getActivity().getSupportFragmentManager(), "userIdInfoDialog");
}
});
}
}
@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);
}
// These are the rows that we will retrieve.
static final String[] UNIFIED_PROJECTION = new String[]{
KeychainContract.KeyRings._ID,
KeychainContract.KeyRings.MASTER_KEY_ID,
KeychainContract.KeyRings.USER_ID,
KeychainContract.KeyRings.IS_REVOKED,
KeychainContract.KeyRings.EXPIRY,
KeychainContract.KeyRings.VERIFIED,
KeychainContract.KeyRings.HAS_ANY_SECRET,
KeychainContract.KeyRings.FINGERPRINT,
KeychainContract.KeyRings.HAS_ENCRYPT
};
static final int INDEX_MASTER_KEY_ID = 1;
static final int INDEX_USER_ID = 2;
static final int INDEX_IS_REVOKED = 3;
static final int INDEX_EXPIRY = 4;
static final int INDEX_VERIFIED = 5;
static final int INDEX_HAS_ANY_SECRET = 6;
static final int INDEX_FINGERPRINT = 7;
static final int INDEX_HAS_ENCRYPT = 8;
private void loadData(Uri dataUri) {
mDataUri = dataUri;
Log.i(Constants.TAG, "mDataUri: " + mDataUri.toString());
// Prepare the loaders. Either re-connect with an existing ones,
// or start new ones.
getLoaderManager().initLoader(LOADER_ID_UNIFIED, null, this);
}
// don't show revoked user ids here, irrelevant for average users
public static final String USER_IDS_WHERE = UserPackets.IS_REVOKED + " = 0";
public Loader<Cursor> onCreateLoader(int id, Bundle args) {
setContentShown(false);
switch (id) {
case LOADER_ID_UNIFIED: {
Uri baseUri = KeychainContract.KeyRings.buildUnifiedKeyRingUri(mDataUri);
return new CursorLoader(getActivity(), baseUri, UNIFIED_PROJECTION, null, null, null);
}
case LOADER_ID_USER_IDS: {
Uri baseUri = UserPackets.buildUserIdsUri(mDataUri);
return new CursorLoader(getActivity(), baseUri,
UserIdsAdapter.USER_IDS_PROJECTION, USER_IDS_WHERE, 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()) {
mIsSecret = data.getInt(INDEX_HAS_ANY_SECRET) != 0;
boolean hasEncrypt = data.getInt(INDEX_HAS_ENCRYPT) != 0;
boolean isRevoked = data.getInt(INDEX_IS_REVOKED) > 0;
boolean isExpired = !data.isNull(INDEX_EXPIRY)
&& new Date(data.getLong(INDEX_EXPIRY) * 1000).before(new Date());
boolean isVerified = data.getInt(INDEX_VERIFIED) > 0;
// load user ids after we know if it's a secret key
mUserIdsAdapter = new UserIdsAdapter(getActivity(), null, 0, false, !mIsSecret, null);
mUserIds.setAdapter(mUserIdsAdapter);
getLoaderManager().initLoader(LOADER_ID_USER_IDS, null, this);
break;
}
}
case LOADER_ID_USER_IDS: {
mUserIdsAdapter.swapCursor(data);
break;
}
}
setContentShown(true);
}
/**
* 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_USER_IDS: {
mUserIdsAdapter.swapCursor(null);
break;
}
}
}
}
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