open-keychain/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/ImportKeysListFragment.java
2014-07-31 19:05:09 +02:00

370 lines
14 KiB
Java

/*
* 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.net.Uri;
import android.os.Bundle;
import android.support.v4.app.ListFragment;
import android.support.v4.app.LoaderManager;
import android.support.v4.content.Loader;
import android.support.v4.util.LongSparseArray;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnTouchListener;
import android.widget.ListView;
import org.sufficientlysecure.keychain.Constants;
import org.sufficientlysecure.keychain.R;
import org.sufficientlysecure.keychain.helper.Preferences;
import org.sufficientlysecure.keychain.keyimport.ImportKeysListEntry;
import org.sufficientlysecure.keychain.keyimport.Keyserver;
import org.sufficientlysecure.keychain.keyimport.ParcelableKeyRing;
import org.sufficientlysecure.keychain.ui.adapter.AsyncTaskResultWrapper;
import org.sufficientlysecure.keychain.ui.adapter.ImportKeysAdapter;
import org.sufficientlysecure.keychain.ui.adapter.ImportKeysListKeybaseLoader;
import org.sufficientlysecure.keychain.ui.adapter.ImportKeysListLoader;
import org.sufficientlysecure.keychain.ui.adapter.ImportKeysListServerLoader;
import org.sufficientlysecure.keychain.util.InputData;
import org.sufficientlysecure.keychain.util.Log;
import org.sufficientlysecure.keychain.util.Notify;
import java.io.ByteArrayInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;
public class ImportKeysListFragment extends ListFragment implements
LoaderManager.LoaderCallbacks<AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>>> {
private static final String ARG_DATA_URI = "uri";
private static final String ARG_BYTES = "bytes";
private static final String ARG_SERVER_QUERY = "query";
private Activity mActivity;
private ImportKeysAdapter mAdapter;
private LoaderState mLoaderState;
private static final int LOADER_ID_BYTES = 0;
private static final int LOADER_ID_SERVER_QUERY = 1;
private static final int LOADER_ID_KEYBASE = 2;
private LongSparseArray<ParcelableKeyRing> mCachedKeyData;
public LoaderState getLoaderState() {
return mLoaderState;
}
public List<ImportKeysListEntry> getData() {
return mAdapter.getData();
}
public ArrayList<ParcelableKeyRing> getSelectedData() {
ArrayList<ParcelableKeyRing> result = new ArrayList<ParcelableKeyRing>();
for (ImportKeysListEntry entry : getSelectedEntries()) {
Log.d(Constants.TAG, "code" + Integer.toString(entry.hashCode()));
result.add(mCachedKeyData.get(entry.hashCode()));
}
return result;
}
public ArrayList<ImportKeysListEntry> getSelectedEntries() {
return mAdapter.getSelectedEntries();
}
/**
* Creates new instance of this fragment
*/
public static ImportKeysListFragment newInstance(byte[] bytes, Uri dataUri, String serverQuery) {
ImportKeysListFragment frag = new ImportKeysListFragment();
Bundle args = new Bundle();
args.putByteArray(ARG_BYTES, bytes);
args.putParcelable(ARG_DATA_URI, dataUri);
args.putString(ARG_SERVER_QUERY, serverQuery);
frag.setArguments(args);
return frag;
}
static public class LoaderState {
}
static public class BytesLoaderState extends LoaderState {
byte[] keyBytes;
Uri dataUri;
BytesLoaderState(byte[] keyBytes, Uri dataUri) {
this.keyBytes = keyBytes;
this.dataUri = dataUri;
}
}
static public class KeyserverLoaderState extends LoaderState {
String serverQuery;
String keyserver;
KeyserverLoaderState(String serverQuery, String keyserver) {
this.serverQuery = serverQuery;
this.keyserver = keyserver;
}
}
static public class KeybaseLoaderState extends LoaderState {
String keybaseQuery;
KeybaseLoaderState(String keybaseQuery) {
this.keybaseQuery = keybaseQuery;
}
}
/**
* Define Adapter and Loader on create of Activity
*/
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
mActivity = getActivity();
// Give some text to display if there is no data.
setEmptyText(mActivity.getString(R.string.error_nothing_import));
// Create an empty adapter we will use to display the loaded data.
mAdapter = new ImportKeysAdapter(mActivity);
setListAdapter(mAdapter);
Uri dataUri = getArguments().getParcelable(ARG_DATA_URI);
byte[] bytes = getArguments().getByteArray(ARG_BYTES);
String query = getArguments().getString(ARG_SERVER_QUERY);
if (dataUri != null || bytes != null) {
mLoaderState = new BytesLoaderState(bytes, dataUri);
} else if (query != null) {
// TODO: this is used when updating a key.
// Currently it simply uses keyserver nr 0
String keyserver = Preferences.getPreferences(getActivity())
.getKeyServers()[0];
mLoaderState = new KeyserverLoaderState(query, keyserver);
}
getListView().setOnTouchListener(new OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
if (!mAdapter.isEmpty()) {
mActivity.onTouchEvent(event);
}
return false;
}
});
restartLoaders();
}
@Override
public void onListItemClick(ListView l, View v, int position, long id) {
super.onListItemClick(l, v, position, id);
// Select checkbox!
// Update underlying data and notify adapter of change. The adapter will
// update the view automatically.
ImportKeysListEntry entry = mAdapter.getItem(position);
entry.setSelected(!entry.isSelected());
mAdapter.notifyDataSetChanged();
}
public void loadNew(LoaderState loaderState) {
mLoaderState = loaderState;
restartLoaders();
}
public void destroyLoader() {
if (getLoaderManager().getLoader(LOADER_ID_BYTES) != null) {
getLoaderManager().destroyLoader(LOADER_ID_BYTES);
}
if (getLoaderManager().getLoader(LOADER_ID_SERVER_QUERY) != null) {
getLoaderManager().destroyLoader(LOADER_ID_SERVER_QUERY);
}
if (getLoaderManager().getLoader(LOADER_ID_KEYBASE) != null) {
getLoaderManager().destroyLoader(LOADER_ID_KEYBASE);
}
if (getView() != null) {
setListShown(true);
}
}
private void restartLoaders() {
if (mLoaderState instanceof BytesLoaderState) {
// Start out with a progress indicator.
setListShown(false);
getLoaderManager().restartLoader(LOADER_ID_BYTES, null, this);
} else if (mLoaderState instanceof KeyserverLoaderState) {
// Start out with a progress indicator.
setListShown(false);
getLoaderManager().restartLoader(LOADER_ID_SERVER_QUERY, null, this);
} else if (mLoaderState instanceof KeybaseLoaderState) {
// Start out with a progress indicator.
setListShown(false);
getLoaderManager().restartLoader(LOADER_ID_KEYBASE, null, this);
}
}
@Override
public Loader<AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>>>
onCreateLoader(int id, Bundle args) {
switch (id) {
case LOADER_ID_BYTES: {
BytesLoaderState ls = (BytesLoaderState) mLoaderState;
InputData inputData = getInputData(ls.keyBytes, ls.dataUri);
return new ImportKeysListLoader(mActivity, inputData);
}
case LOADER_ID_SERVER_QUERY: {
KeyserverLoaderState ls = (KeyserverLoaderState) mLoaderState;
return new ImportKeysListServerLoader(getActivity(), ls.serverQuery, ls.keyserver);
}
case LOADER_ID_KEYBASE: {
KeybaseLoaderState ls = (KeybaseLoaderState) mLoaderState;
return new ImportKeysListKeybaseLoader(getActivity(), ls.keybaseQuery);
}
default:
return null;
}
}
@Override
public void onLoadFinished(Loader<AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>>> loader,
AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>> data) {
// Swap the new cursor in. (The framework will take care of closing the
// old cursor once we return.)
Log.d(Constants.TAG, "data: " + data.getResult());
// swap in the real data!
mAdapter.setData(data.getResult());
mAdapter.notifyDataSetChanged();
setListAdapter(mAdapter);
// The list should now be shown.
if (isResumed()) {
setListShown(true);
} else {
setListShownNoAnimation(true);
}
Exception error = data.getError();
// free old cached key data
mCachedKeyData = null;
switch (loader.getId()) {
case LOADER_ID_BYTES:
if (error == null) {
// No error
mCachedKeyData = ((ImportKeysListLoader) loader).getParcelableRings();
} else if (error instanceof ImportKeysListLoader.NoValidKeysException) {
Notify.showNotify(getActivity(), R.string.error_import_no_valid_keys, Notify.Style.ERROR);
} else if (error instanceof ImportKeysListLoader.NonPgpPartException) {
Notify.showNotify(getActivity(),
((ImportKeysListLoader.NonPgpPartException) error).getCount() + " " + getResources().
getQuantityString(R.plurals.error_import_non_pgp_part,
((ImportKeysListLoader.NonPgpPartException) error).getCount()),
Notify.Style.OK
);
} else {
Notify.showNotify(getActivity(), R.string.error_generic_report_bug, Notify.Style.ERROR);
}
break;
case LOADER_ID_SERVER_QUERY:
case LOADER_ID_KEYBASE:
if (error == null) {
// No error
} else if (error instanceof Keyserver.QueryTooShortException) {
Notify.showNotify(getActivity(), R.string.error_query_too_short, Notify.Style.ERROR);
} else if (error instanceof Keyserver.TooManyResponsesException) {
Notify.showNotify(getActivity(), R.string.error_too_many_responses, Notify.Style.ERROR);
} else if (error instanceof Keyserver.QueryTooShortOrTooManyResponsesException) {
Notify.showNotify(getActivity(), R.string.error_too_short_or_too_many_responses, Notify.Style.ERROR);
} else if (error instanceof Keyserver.QueryFailedException) {
Log.d(Constants.TAG,
"Unrecoverable keyserver query error: " + error.getLocalizedMessage());
String alert = getActivity().getString(R.string.error_searching_keys);
alert = alert + " (" + error.getLocalizedMessage() + ")";
Notify.showNotify(getActivity(), alert, Notify.Style.ERROR);
}
break;
default:
break;
}
}
@Override
public void onLoaderReset(Loader<AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>>> loader) {
switch (loader.getId()) {
case LOADER_ID_BYTES:
// Clear the data in the adapter.
mAdapter.clear();
break;
case LOADER_ID_SERVER_QUERY:
// Clear the data in the adapter.
mAdapter.clear();
break;
case LOADER_ID_KEYBASE:
// Clear the data in the adapter.
mAdapter.clear();
break;
default:
break;
}
}
private InputData getInputData(byte[] importBytes, Uri dataUri) {
InputData inputData = null;
if (importBytes != null) {
inputData = new InputData(new ByteArrayInputStream(importBytes), importBytes.length);
} else if (dataUri != null) {
try {
InputStream inputStream = getActivity().getContentResolver().openInputStream(dataUri);
int length = inputStream.available();
inputData = new InputData(inputStream, length);
} catch (FileNotFoundException e) {
Log.e(Constants.TAG, "FileNotFoundException!", e);
} catch (IOException e) {
Log.e(Constants.TAG, "IOException!", e);
}
}
return inputData;
}
}