/*
* Copyright (C) 2012-2014 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.app.Activity;
import android.content.Context;
import android.databinding.DataBindingUtil;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.support.annotation.NonNull;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.LoaderManager;
import android.support.v4.content.Loader;
import android.support.v7.widget.LinearLayoutManager;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import org.sufficientlysecure.keychain.R;
import org.sufficientlysecure.keychain.databinding.ImportKeysListFragmentBinding;
import org.sufficientlysecure.keychain.keyimport.ImportKeysListEntry;
import org.sufficientlysecure.keychain.keyimport.processing.AsyncTaskResultWrapper;
import org.sufficientlysecure.keychain.keyimport.processing.BytesLoaderState;
import org.sufficientlysecure.keychain.keyimport.processing.CloudLoaderState;
import org.sufficientlysecure.keychain.keyimport.processing.ImportKeysListCloudLoader;
import org.sufficientlysecure.keychain.keyimport.processing.ImportKeysListLoader;
import org.sufficientlysecure.keychain.keyimport.processing.ImportKeysListener;
import org.sufficientlysecure.keychain.keyimport.processing.LoaderState;
import org.sufficientlysecure.keychain.operations.results.GetKeyResult;
import org.sufficientlysecure.keychain.service.input.RequiredInputParcel;
import org.sufficientlysecure.keychain.ui.adapter.ImportKeysAdapter;
import org.sufficientlysecure.keychain.ui.util.PermissionsUtil;
import org.sufficientlysecure.keychain.util.ParcelableProxy;
import org.sufficientlysecure.keychain.util.Preferences;
import org.sufficientlysecure.keychain.util.Preferences.CloudSearchPrefs;
import org.sufficientlysecure.keychain.network.orbot.OrbotHelper;
import java.util.ArrayList;
public class ImportKeysListFragment extends Fragment implements
LoaderManager.LoaderCallbacks<AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>>> {
private static final String ARG_DATA_URI = "uri";
private static final String ARG_BYTES = "bytes";
public static final String ARG_SERVER_QUERY = "query";
public static final String ARG_NON_INTERACTIVE = "non_interactive";
public static final String ARG_CLOUD_SEARCH_PREFS = "cloud_search_prefs";
private FragmentActivity mActivity;
private ImportKeysListener mListener;
private ImportKeysListFragmentBinding mBinding;
private ParcelableProxy mParcelableProxy;
private ImportKeysAdapter mAdapter;
private LoaderState mLoaderState;
public static final int STATUS_FIRST = 0;
public static final int STATUS_LOADING = 1;
public static final int STATUS_LOADED = 2;
public static final int STATUS_EMPTY = 3;
private static final int LOADER_ID_BYTES = 0;
private static final int LOADER_ID_CLOUD = 1;
private boolean mShowingOrbotDialog;
/**
* Creates an interactive ImportKeyListFragment which reads keyrings from bytes, or file specified
* by dataUri, or searches a keyserver for serverQuery, if parameter is not null, in that order
* Will immediately load data if non-null bytes/dataUri/serverQuery
*
* @param bytes byte data containing list of keyrings to be imported
* @param dataUri file from which keyrings are to be imported
* @param serverQuery query to search for on keyserver
* @param cloudSearchPrefs search parameters to use. If null will retrieve from user's
* preferences.
* @return fragment with arguments set based on passed parameters
*/
public static ImportKeysListFragment newInstance(byte[] bytes, Uri dataUri, String serverQuery,
CloudSearchPrefs cloudSearchPrefs) {
return newInstance(bytes, dataUri, serverQuery, false, cloudSearchPrefs);
}
/**
* Visually consists of a list of keyrings with checkboxes to specify which are to be imported
* Will immediately load data if non-null bytes/dataUri/serverQuery is supplied
*
* @param bytes byte data containing list of keyrings to be imported
* @param dataUri file from which keyrings are to be imported
* @param serverQuery query to search for on keyserver
* @param nonInteractive if true, users will not be able to check/uncheck items in the list
* @param cloudSearchPrefs search parameters to use. If null will retrieve from user's
* preferences.
* @return fragment with arguments set based on passed parameters
*/
public static ImportKeysListFragment newInstance(byte[] bytes,
Uri dataUri,
String serverQuery,
boolean nonInteractive,
CloudSearchPrefs cloudSearchPrefs) {
Bundle args = new Bundle();
args.putByteArray(ARG_BYTES, bytes);
args.putParcelable(ARG_DATA_URI, dataUri);
args.putString(ARG_SERVER_QUERY, serverQuery);
args.putBoolean(ARG_NON_INTERACTIVE, nonInteractive);
args.putParcelable(ARG_CLOUD_SEARCH_PREFS, cloudSearchPrefs);
ImportKeysListFragment frag = new ImportKeysListFragment();
frag.setArguments(args);
return frag;
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle bundle) {
mBinding = DataBindingUtil.inflate(inflater, R.layout.import_keys_list_fragment, container, false);
mBinding.setStatus(STATUS_FIRST);
View view = mBinding.getRoot();
mActivity = getActivity();
Bundle args = getArguments();
Uri dataUri = args.getParcelable(ARG_DATA_URI);
byte[] bytes = args.getByteArray(ARG_BYTES);
String query = args.getString(ARG_SERVER_QUERY);
boolean nonInteractive = args.getBoolean(ARG_NON_INTERACTIVE, false);
mBinding.basic.setNonInteractive(nonInteractive);
// Create an empty adapter we will use to display the loaded data.
mAdapter = new ImportKeysAdapter(mActivity, mListener, nonInteractive);
mBinding.recyclerView.setAdapter(mAdapter);
mBinding.recyclerView.setLayoutManager(new LinearLayoutManager(mActivity));
if (dataUri != null || bytes != null) {
loadState(new BytesLoaderState(bytes, dataUri));
} else if (query != null) {
CloudSearchPrefs cloudSearchPrefs = args.getParcelable(ARG_CLOUD_SEARCH_PREFS);
if (cloudSearchPrefs == null) {
cloudSearchPrefs = Preferences.getPreferences(mActivity).getCloudSearchPrefs();
}
loadState(new CloudLoaderState(query, cloudSearchPrefs));
}
// mBinding.basic is only used for file import
mBinding.basic.importKeys.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View view) {
mListener.importKeys(mAdapter.getEntries());
}
});
mBinding.basic.listKeys.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View view) {
mBinding.setAdvanced(true);
}
});
return view;
}
@Override
public void onAttach(Context context) {
super.onAttach(context);
try {
mListener = (ImportKeysListener) context;
} catch (ClassCastException e) {
throw new ClassCastException(context.toString()
+ " must implement ImportKeysListener");
}
}
@Override
public void onRequestPermissionsResult(int requestCode,
@NonNull String[] permissions,
@NonNull int[] grantResults) {
if (PermissionsUtil.checkReadPermissionResult(mActivity, requestCode, grantResults)) {
restartLoaders();
} else {
mActivity.setResult(Activity.RESULT_CANCELED);
mActivity.finish();
}
}
/**
* User may want to go back to single card view if he's now in full key list
* Check if we are in full key list and if this import operation supports basic mode
*
* @return true if activity's back pressed can be performed
*/
public boolean onBackPressed() {
boolean advanced = mBinding.getAdvanced();
if (advanced && mLoaderState.isBasicModeSupported()) {
mBinding.setAdvanced(false);
return false;
}
return true;
}
public void loadState(LoaderState loaderState) {
mLoaderState = loaderState;
if (mLoaderState instanceof BytesLoaderState) {
BytesLoaderState ls = (BytesLoaderState) mLoaderState;
if (ls.mDataUri != null &&
!PermissionsUtil.checkAndRequestReadPermission(this, ls.mDataUri)) {
return;
}
}
mBinding.setAdvanced(!mLoaderState.isBasicModeSupported());
restartLoaders();
}
private void restartLoaders() {
LoaderManager loaderManager = getLoaderManager();
if (mLoaderState instanceof BytesLoaderState) {
loaderManager.restartLoader(LOADER_ID_BYTES, null, this);
} else if (mLoaderState instanceof CloudLoaderState) {
loaderManager.restartLoader(LOADER_ID_CLOUD, null, this);
}
}
@Override
public Loader<AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>>> onCreateLoader(
int id, Bundle args) {
Loader<AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>>> loader = null;
switch (id) {
case LOADER_ID_BYTES: {
loader = new ImportKeysListLoader(mActivity, (BytesLoaderState) mLoaderState);
break;
}
case LOADER_ID_CLOUD: {
loader = new ImportKeysListCloudLoader(mActivity, (CloudLoaderState) mLoaderState,
mParcelableProxy);
break;
}
}
if (loader != null) {
mBinding.setStatus(STATUS_LOADING);
}
return loader;
}
@Override
public void onLoadFinished(
Loader<AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>>> loader,
AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>> data) {
mAdapter.setData(data.getResult());
int size = mAdapter.getItemCount();
mBinding.setNumber(size);
mBinding.setStatus(size > 0 ? STATUS_LOADED : STATUS_EMPTY);
GetKeyResult getKeyResult = (GetKeyResult) data.getOperationResult();
switch (loader.getId()) {
case LOADER_ID_BYTES:
if (!getKeyResult.success()) {
getKeyResult.createNotify(mActivity).show();
}
break;
case LOADER_ID_CLOUD:
if (getKeyResult.isPending()) {
if (getKeyResult.getRequiredInputParcel().mType ==
RequiredInputParcel.RequiredInputType.ENABLE_ORBOT) {
if (mShowingOrbotDialog) {
// to prevent dialogs stacking
return;
}
// this is because we can't commit fragment dialogs in onLoadFinished
Runnable showOrbotDialog = new Runnable() {
@Override
public void run() {
OrbotHelper.DialogActions dialogActions =
new OrbotHelper.DialogActions() {
@Override
public void onOrbotStarted() {
mShowingOrbotDialog = false;
restartLoaders();
}
@Override
public void onNeutralButton() {
mParcelableProxy = ParcelableProxy
.getForNoProxy();
mShowingOrbotDialog = false;
restartLoaders();
}
@Override
public void onCancel() {
mShowingOrbotDialog = false;
}
};
if (OrbotHelper.putOrbotInRequiredState(dialogActions, mActivity)) {
// looks like we didn't have to show the
// dialog after all
mShowingOrbotDialog = false;
restartLoaders();
}
}
};
new Handler().post(showOrbotDialog);
mShowingOrbotDialog = true;
}
} else if (!getKeyResult.success()) {
getKeyResult.createNotify(mActivity).show();
}
break;
}
}
@Override
public void onLoaderReset(
Loader<AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>>> loader) {
mAdapter.clearData();
}
}