455 lines
17 KiB
Java
455 lines
17 KiB
Java
/*
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* Copyright (C) 2012-2014 Dominik Schürmann <dominik@dominikschuermann.de>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.sufficientlysecure.keychain.ui;
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import android.app.Activity;
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import android.net.Uri;
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import android.os.Bundle;
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import android.os.Handler;
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import android.support.v4.app.ListFragment;
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import android.support.v4.app.LoaderManager;
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import android.support.v4.content.Loader;
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import android.support.v4.util.LongSparseArray;
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import android.view.MotionEvent;
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import android.view.View;
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import android.view.View.OnTouchListener;
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import android.widget.ListView;
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import org.sufficientlysecure.keychain.Constants;
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import org.sufficientlysecure.keychain.R;
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import org.sufficientlysecure.keychain.keyimport.ImportKeysListEntry;
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import org.sufficientlysecure.keychain.keyimport.ParcelableKeyRing;
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import org.sufficientlysecure.keychain.operations.results.GetKeyResult;
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import org.sufficientlysecure.keychain.service.input.RequiredInputParcel;
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import org.sufficientlysecure.keychain.ui.adapter.AsyncTaskResultWrapper;
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import org.sufficientlysecure.keychain.ui.adapter.ImportKeysAdapter;
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import org.sufficientlysecure.keychain.ui.adapter.ImportKeysListCloudLoader;
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import org.sufficientlysecure.keychain.ui.adapter.ImportKeysListLoader;
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import org.sufficientlysecure.keychain.util.InputData;
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import org.sufficientlysecure.keychain.util.Log;
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import org.sufficientlysecure.keychain.util.ParcelableFileCache.IteratorWithSize;
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import org.sufficientlysecure.keychain.util.ParcelableProxy;
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import org.sufficientlysecure.keychain.util.Preferences;
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import org.sufficientlysecure.keychain.util.orbot.OrbotHelper;
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import java.io.ByteArrayInputStream;
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import java.io.FileNotFoundException;
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import java.io.IOException;
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import java.io.InputStream;
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import java.util.ArrayList;
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import java.util.Iterator;
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import java.util.List;
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public class ImportKeysListFragment extends ListFragment implements
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LoaderManager.LoaderCallbacks<AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>>> {
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private static final String ARG_DATA_URI = "uri";
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private static final String ARG_BYTES = "bytes";
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public static final String ARG_SERVER_QUERY = "query";
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public static final String ARG_NON_INTERACTIVE = "non_interactive";
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public static final String ARG_KEYSERVER_URL = "keyserver_url";
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private Activity mActivity;
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private ImportKeysAdapter mAdapter;
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private ParcelableProxy mParcelableProxy;
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private LoaderState mLoaderState;
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private static final int LOADER_ID_BYTES = 0;
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private static final int LOADER_ID_CLOUD = 1;
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private LongSparseArray<ParcelableKeyRing> mCachedKeyData;
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private boolean mNonInteractive;
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private boolean mShowingOrbotDialog;
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public LoaderState getLoaderState() {
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return mLoaderState;
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}
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public List<ImportKeysListEntry> getData() {
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return mAdapter.getData();
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}
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/**
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* Returns an Iterator (with size) of the selected data items.
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* This iterator is sort of a tradeoff, it's slightly more complex than an
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* ArrayList would have been, but we save some memory by just returning
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* relevant elements on demand.
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*/
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public IteratorWithSize<ParcelableKeyRing> getSelectedData() {
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final ArrayList<ImportKeysListEntry> entries = getSelectedEntries();
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final Iterator<ImportKeysListEntry> it = entries.iterator();
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return new IteratorWithSize<ParcelableKeyRing>() {
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@Override
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public int getSize() {
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return entries.size();
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}
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@Override
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public boolean hasNext() {
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return it.hasNext();
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}
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@Override
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public ParcelableKeyRing next() {
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// throws NoSuchElementException if it doesn't exist, but that's not our problem
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return mCachedKeyData.get(it.next().hashCode());
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}
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@Override
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public void remove() {
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it.remove();
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}
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};
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}
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public ArrayList<ImportKeysListEntry> getSelectedEntries() {
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if (mAdapter != null) {
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return mAdapter.getSelectedEntries();
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} else {
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Log.e(Constants.TAG, "Adapter not initialized, returning empty list");
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return new ArrayList<>();
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}
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}
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/**
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* Creates an interactive ImportKeyListFragment which reads keyrings from bytes, or file specified
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* by dataUri, or searches a keyserver for serverQuery, if parameter is not null, in that order
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* Will immediately load data if non-null bytes/dataUri/serverQuery
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*
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* @param bytes byte data containing list of keyrings to be imported
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* @param dataUri file from which keyrings are to be imported
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* @param serverQuery query to search for on keyserver
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* @param keyserver if not null, will perform search on specified keyserver. Else, uses
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* keyserver specified in user preferences
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* @return fragment with arguments set based on passed parameters
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*/
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public static ImportKeysListFragment newInstance(byte[] bytes, Uri dataUri, String serverQuery,
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String keyserver) {
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return newInstance(bytes, dataUri, serverQuery, false, keyserver);
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}
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/**
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* Visually consists of a list of keyrings with checkboxes to specify which are to be imported
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* Will immediately load data if non-null bytes/dataUri/serverQuery is supplied
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*
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* @param bytes byte data containing list of keyrings to be imported
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* @param dataUri file from which keyrings are to be imported
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* @param serverQuery query to search for on keyserver
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* @param nonInteractive if true, users will not be able to check/uncheck items in the list
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* @param keyserver if set, will perform search on specified keyserver. If null, falls back
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* to keyserver specified in user preferences
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* @return fragment with arguments set based on passed parameters
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*/
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public static ImportKeysListFragment newInstance(byte[] bytes, Uri dataUri, String serverQuery,
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boolean nonInteractive, String keyserver) {
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ImportKeysListFragment frag = new ImportKeysListFragment();
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Bundle args = new Bundle();
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args.putByteArray(ARG_BYTES, bytes);
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args.putParcelable(ARG_DATA_URI, dataUri);
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args.putString(ARG_SERVER_QUERY, serverQuery);
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args.putBoolean(ARG_NON_INTERACTIVE, nonInteractive);
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args.putString(ARG_KEYSERVER_URL, keyserver);
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frag.setArguments(args);
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return frag;
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}
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static public class LoaderState {
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}
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static public class BytesLoaderState extends LoaderState {
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byte[] mKeyBytes;
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Uri mDataUri;
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BytesLoaderState(byte[] keyBytes, Uri dataUri) {
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mKeyBytes = keyBytes;
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mDataUri = dataUri;
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}
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}
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static public class CloudLoaderState extends LoaderState {
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Preferences.CloudSearchPrefs mCloudPrefs;
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String mServerQuery;
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CloudLoaderState(String serverQuery, Preferences.CloudSearchPrefs cloudPrefs) {
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mServerQuery = serverQuery;
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mCloudPrefs = cloudPrefs;
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}
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}
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/**
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* Define Adapter and Loader on create of Activity
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*/
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@Override
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public void onActivityCreated(Bundle savedInstanceState) {
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super.onActivityCreated(savedInstanceState);
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mActivity = getActivity();
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// Give some text to display if there is no data.
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setEmptyText(mActivity.getString(R.string.error_nothing_import));
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// Create an empty adapter we will use to display the loaded data.
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mAdapter = new ImportKeysAdapter(mActivity);
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setListAdapter(mAdapter);
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Bundle args = getArguments();
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Uri dataUri = args.getParcelable(ARG_DATA_URI);
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byte[] bytes = args.getByteArray(ARG_BYTES);
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String query = args.getString(ARG_SERVER_QUERY);
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String keyserver = args.getString(ARG_KEYSERVER_URL);
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mNonInteractive = args.getBoolean(ARG_NON_INTERACTIVE, false);
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if (dataUri != null || bytes != null) {
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mLoaderState = new BytesLoaderState(bytes, dataUri);
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} else if (query != null) {
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Preferences.CloudSearchPrefs cloudSearchPrefs;
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if (keyserver == null) {
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cloudSearchPrefs = Preferences.getPreferences(getActivity()).getCloudSearchPrefs();
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} else {
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cloudSearchPrefs = new Preferences.CloudSearchPrefs(true, true, keyserver);
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}
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mLoaderState = new CloudLoaderState(query, cloudSearchPrefs);
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}
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getListView().setOnTouchListener(new OnTouchListener() {
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@Override
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public boolean onTouch(View v, MotionEvent event) {
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if (!mAdapter.isEmpty()) {
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mActivity.onTouchEvent(event);
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}
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return false;
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}
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});
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getListView().setFastScrollEnabled(true);
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restartLoaders();
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}
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@Override
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public void onListItemClick(ListView l, View v, int position, long id) {
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super.onListItemClick(l, v, position, id);
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if (mNonInteractive) {
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return;
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}
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// Select checkbox!
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// Update underlying data and notify adapter of change. The adapter will
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// update the view automatically.
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ImportKeysListEntry entry = mAdapter.getItem(position);
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entry.setSelected(!entry.isSelected());
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mAdapter.notifyDataSetChanged();
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}
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public void loadNew(LoaderState loaderState) {
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mLoaderState = loaderState;
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restartLoaders();
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}
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public void destroyLoader() {
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if (getLoaderManager().getLoader(LOADER_ID_BYTES) != null) {
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getLoaderManager().destroyLoader(LOADER_ID_BYTES);
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}
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if (getLoaderManager().getLoader(LOADER_ID_CLOUD) != null) {
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getLoaderManager().destroyLoader(LOADER_ID_CLOUD);
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}
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if (getView() != null) {
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setListShown(true);
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}
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}
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private void restartLoaders() {
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if (mLoaderState instanceof BytesLoaderState) {
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// Start out with a progress indicator.
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setListShown(false);
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getLoaderManager().restartLoader(LOADER_ID_BYTES, null, this);
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} else if (mLoaderState instanceof CloudLoaderState) {
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// Start out with a progress indicator.
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setListShown(false);
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getLoaderManager().restartLoader(LOADER_ID_CLOUD, null, this);
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}
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}
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@Override
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public Loader<AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>>>
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onCreateLoader(int id, Bundle args) {
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switch (id) {
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case LOADER_ID_BYTES: {
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BytesLoaderState ls = (BytesLoaderState) mLoaderState;
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InputData inputData = getInputData(ls.mKeyBytes, ls.mDataUri);
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return new ImportKeysListLoader(mActivity, inputData);
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}
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case LOADER_ID_CLOUD: {
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CloudLoaderState ls = (CloudLoaderState) mLoaderState;
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return new ImportKeysListCloudLoader(getActivity(), ls.mServerQuery, ls.mCloudPrefs,
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mParcelableProxy);
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}
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default:
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return null;
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}
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}
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@Override
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public void onLoadFinished(Loader<AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>>> loader,
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AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>> data) {
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// Swap the new cursor in. (The framework will take care of closing the
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// old cursor once we return.)
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Log.d(Constants.TAG, "data: " + data.getResult());
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// swap in the real data!
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mAdapter.setData(data.getResult());
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mAdapter.notifyDataSetChanged();
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setListAdapter(mAdapter);
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// The list should now be shown.
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if (isResumed()) {
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setListShown(true);
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} else {
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setListShownNoAnimation(true);
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}
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// free old cached key data
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mCachedKeyData = null;
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GetKeyResult getKeyResult = (GetKeyResult) data.getOperationResult();
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switch (loader.getId()) {
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case LOADER_ID_BYTES:
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if (getKeyResult.success()) {
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// No error
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mCachedKeyData = ((ImportKeysListLoader) loader).getParcelableRings();
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} else {
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getKeyResult.createNotify(getActivity()).show();
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}
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break;
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case LOADER_ID_CLOUD:
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if (getKeyResult.success()) {
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// No error
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} else if (getKeyResult.isPending()) {
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if (getKeyResult.getRequiredInputParcel().mType ==
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RequiredInputParcel.RequiredInputType.ENABLE_ORBOT) {
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if (mShowingOrbotDialog) {
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// to prevent dialogs stacking
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return;
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}
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// this is because we can't commit fragment dialogs in onLoadFinished
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Runnable showOrbotDialog = new Runnable() {
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@Override
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public void run() {
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OrbotHelper.DialogActions dialogActions =
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new OrbotHelper.DialogActions() {
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@Override
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public void onOrbotStarted() {
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mShowingOrbotDialog = false;
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restartLoaders();
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}
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@Override
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public void onNeutralButton() {
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mParcelableProxy = ParcelableProxy
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.getForNoProxy();
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mShowingOrbotDialog = false;
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restartLoaders();
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}
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@Override
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public void onCancel() {
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mShowingOrbotDialog = false;
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}
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};
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if (OrbotHelper.putOrbotInRequiredState(dialogActions,
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getActivity())) {
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// looks like we didn't have to show the
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// dialog after all
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mShowingOrbotDialog = false;
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restartLoaders();
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}
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}
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};
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new Handler().post(showOrbotDialog);
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mShowingOrbotDialog = true;
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}
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} else {
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getKeyResult.createNotify(getActivity()).show();
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}
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break;
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default:
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break;
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}
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}
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@Override
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public void onLoaderReset(Loader<AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>>> loader) {
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switch (loader.getId()) {
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case LOADER_ID_BYTES:
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// Clear the data in the adapter.
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mAdapter.clear();
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break;
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case LOADER_ID_CLOUD:
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// Clear the data in the adapter.
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mAdapter.clear();
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break;
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default:
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break;
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}
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}
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private InputData getInputData(byte[] importBytes, Uri dataUri) {
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InputData inputData = null;
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if (importBytes != null) {
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inputData = new InputData(new ByteArrayInputStream(importBytes), importBytes.length);
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} else if (dataUri != null) {
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try {
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InputStream inputStream = getActivity().getContentResolver().openInputStream(dataUri);
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int length = inputStream.available();
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inputData = new InputData(inputStream, length);
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} catch (FileNotFoundException e) {
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Log.e(Constants.TAG, "FileNotFoundException!", e);
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} catch (IOException e) {
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Log.e(Constants.TAG, "IOException!", e);
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}
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}
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return inputData;
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}
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}
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