477 lines
21 KiB
Java
477 lines
21 KiB
Java
/*
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* Copyright (C) 2012-2014 Dominik Schürmann <dominik@dominikschuermann.de>
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* Copyright (C) 2011 Senecaso
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.sufficientlysecure.keychain.ui;
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import android.app.ProgressDialog;
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import android.content.Intent;
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import android.net.Uri;
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import android.os.Bundle;
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import android.os.Message;
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import android.os.Messenger;
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import android.support.v4.app.Fragment;
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import android.view.View;
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import android.view.View.OnClickListener;
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import android.view.ViewGroup;
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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.intents.OpenKeychainIntents;
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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.ImportKeyResult;
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import org.sufficientlysecure.keychain.operations.results.OperationResult;
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import org.sufficientlysecure.keychain.ui.base.BaseNfcActivity;
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import org.sufficientlysecure.keychain.service.CloudImportService;
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import org.sufficientlysecure.keychain.service.ServiceProgressHandler;
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import org.sufficientlysecure.keychain.ui.dialog.ProgressDialogFragment;
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import org.sufficientlysecure.keychain.ui.util.KeyFormattingUtils;
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import org.sufficientlysecure.keychain.ui.util.Notify;
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import org.sufficientlysecure.keychain.util.Log;
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import org.sufficientlysecure.keychain.util.ParcelableFileCache;
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import org.sufficientlysecure.keychain.util.ParcelableFileCache.IteratorWithSize;
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import java.io.IOException;
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import java.util.ArrayList;
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public class ImportKeysActivity extends BaseNfcActivity {
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public static final String ACTION_IMPORT_KEY = OpenKeychainIntents.IMPORT_KEY;
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public static final String ACTION_IMPORT_KEY_FROM_KEYSERVER = OpenKeychainIntents.IMPORT_KEY_FROM_KEYSERVER;
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public static final String ACTION_IMPORT_KEY_FROM_KEYSERVER_AND_RETURN_RESULT =
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Constants.INTENT_PREFIX + "IMPORT_KEY_FROM_KEY_SERVER_AND_RETURN_RESULT";
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public static final String ACTION_IMPORT_KEY_FROM_KEYSERVER_AND_RETURN_TO_SERVICE = Constants.INTENT_PREFIX
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+ "IMPORT_KEY_FROM_KEY_SERVER_AND_RETURN";
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public static final String ACTION_IMPORT_KEY_FROM_FILE_AND_RETURN = Constants.INTENT_PREFIX
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+ "IMPORT_KEY_FROM_FILE_AND_RETURN";
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// Actions for internal use only:
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public static final String ACTION_IMPORT_KEY_FROM_FILE = Constants.INTENT_PREFIX
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+ "IMPORT_KEY_FROM_FILE";
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public static final String ACTION_SEARCH_KEYSERVER_FROM_URL = Constants.INTENT_PREFIX
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+ "SEARCH_KEYSERVER_FROM_URL";
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public static final String EXTRA_RESULT = "result";
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// only used by ACTION_IMPORT_KEY
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public static final String EXTRA_KEY_BYTES = OpenKeychainIntents.IMPORT_EXTRA_KEY_EXTRA_KEY_BYTES;
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// only used by ACTION_IMPORT_KEY_FROM_KEYSERVER
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public static final String EXTRA_QUERY = OpenKeychainIntents.IMPORT_KEY_FROM_KEYSERVER_EXTRA_QUERY;
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public static final String EXTRA_KEY_ID = Constants.EXTRA_PREFIX + "EXTRA_KEY_ID";
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public static final String EXTRA_FINGERPRINT = OpenKeychainIntents.IMPORT_KEY_FROM_KEYSERVER_EXTRA_FINGERPRINT;
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// only used by ACTION_IMPORT_KEY_FROM_KEYSERVER_AND_RETURN_TO_SERVICE when used from OpenPgpService
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public static final String EXTRA_PENDING_INTENT_DATA = "data";
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private Intent mPendingIntentData;
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// view
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private ImportKeysListFragment mListFragment;
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private Fragment mTopFragment;
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private View mImportButton;
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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mImportButton = findViewById(R.id.import_import);
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mImportButton.setOnClickListener(new OnClickListener() {
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@Override
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public void onClick(View v) {
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importKeys();
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}
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});
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handleActions(savedInstanceState, getIntent());
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}
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@Override
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protected void initLayout() {
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setContentView(R.layout.import_keys_activity);
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}
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protected void handleActions(Bundle savedInstanceState, Intent intent) {
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String action = intent.getAction();
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Bundle extras = intent.getExtras();
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Uri dataUri = intent.getData();
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String scheme = intent.getScheme();
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if (extras == null) {
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extras = new Bundle();
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}
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if (action == null) {
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startCloudFragment(savedInstanceState, null, false, null);
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startListFragment(savedInstanceState, null, null, null, null);
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return;
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}
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if (Intent.ACTION_VIEW.equals(action)) {
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if (scheme.equals("http") || scheme.equals("https")) {
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action = ACTION_SEARCH_KEYSERVER_FROM_URL;
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} else {
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// Android's Action when opening file associated to Keychain (see AndroidManifest.xml)
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// delegate action to ACTION_IMPORT_KEY
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action = ACTION_IMPORT_KEY;
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}
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}
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switch (action) {
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case ACTION_IMPORT_KEY: {
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/* Keychain's own Actions */
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startFileFragment(savedInstanceState);
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if (dataUri != null) {
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// action: directly load data
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startListFragment(savedInstanceState, null, dataUri, null, null);
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} else if (extras.containsKey(EXTRA_KEY_BYTES)) {
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byte[] importData = extras.getByteArray(EXTRA_KEY_BYTES);
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// action: directly load data
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startListFragment(savedInstanceState, importData, null, null, null);
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}
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break;
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}
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case ACTION_IMPORT_KEY_FROM_KEYSERVER:
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case ACTION_IMPORT_KEY_FROM_KEYSERVER_AND_RETURN_TO_SERVICE:
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case ACTION_IMPORT_KEY_FROM_KEYSERVER_AND_RETURN_RESULT: {
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// only used for OpenPgpService
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if (extras.containsKey(EXTRA_PENDING_INTENT_DATA)) {
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mPendingIntentData = extras.getParcelable(EXTRA_PENDING_INTENT_DATA);
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}
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if (extras.containsKey(EXTRA_QUERY) || extras.containsKey(EXTRA_KEY_ID)) {
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/* simple search based on query or key id */
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String query = null;
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if (extras.containsKey(EXTRA_QUERY)) {
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query = extras.getString(EXTRA_QUERY);
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} else if (extras.containsKey(EXTRA_KEY_ID)) {
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long keyId = extras.getLong(EXTRA_KEY_ID, 0);
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if (keyId != 0) {
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query = KeyFormattingUtils.convertKeyIdToHex(keyId);
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}
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}
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if (query != null && query.length() > 0) {
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// display keyserver fragment with query
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startCloudFragment(savedInstanceState, query, false, null);
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// action: search immediately
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startListFragment(savedInstanceState, null, null, query, null);
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} else {
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Log.e(Constants.TAG, "Query is empty!");
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return;
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}
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} else if (extras.containsKey(EXTRA_FINGERPRINT)) {
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/*
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* search based on fingerprint, here we can enforce a check in the end
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* if the right key has been downloaded
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*/
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String fingerprint = extras.getString(EXTRA_FINGERPRINT);
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if (isFingerprintValid(fingerprint)) {
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String query = "0x" + fingerprint;
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// display keyserver fragment with query
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startCloudFragment(savedInstanceState, query, true, null);
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// action: search immediately
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startListFragment(savedInstanceState, null, null, query, null);
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}
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} else {
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Log.e(Constants.TAG,
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"IMPORT_KEY_FROM_KEYSERVER action needs to contain the 'query', 'key_id', or " +
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"'fingerprint' extra!"
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);
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return;
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}
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break;
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}
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case ACTION_IMPORT_KEY_FROM_FILE: {
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// NOTE: this only displays the appropriate fragment, no actions are taken
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startFileFragment(savedInstanceState);
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// no immediate actions!
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startListFragment(savedInstanceState, null, null, null, null);
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break;
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}
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case ACTION_SEARCH_KEYSERVER_FROM_URL: {
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// need to process URL to get search query and keyserver authority
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String query = dataUri.getQueryParameter("search");
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String keyserver = dataUri.getAuthority();
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// if query not specified, we still allow users to search the keyserver in the link
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if (query == null) {
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Notify.create(this, R.string.import_url_warn_no_search_parameter, Notify.LENGTH_INDEFINITE,
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Notify.Style.WARN).show(mTopFragment);
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// we just set the keyserver
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startCloudFragment(savedInstanceState, null, false, keyserver);
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// it's not necessary to set the keyserver for ImportKeysListFragment since
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// it'll be taken care of by ImportKeysCloudFragment when the user clicks
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// the search button
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startListFragment(savedInstanceState, null, null, null, null);
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} else {
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// we allow our users to edit the query if they wish
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startCloudFragment(savedInstanceState, query, false, keyserver);
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// search immediately
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startListFragment(savedInstanceState, null, null, query, keyserver);
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}
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break;
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}
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case ACTION_IMPORT_KEY_FROM_FILE_AND_RETURN: {
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// NOTE: this only displays the appropriate fragment, no actions are taken
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startFileFragment(savedInstanceState);
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// no immediate actions!
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startListFragment(savedInstanceState, null, null, null, null);
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break;
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}
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default: {
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startCloudFragment(savedInstanceState, null, false, null);
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startListFragment(savedInstanceState, null, null, null, null);
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break;
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}
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}
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}
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/**
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* if the fragment is started with non-null bytes/dataUri/serverQuery, it will immediately
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* load content
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*
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* @param savedInstanceState
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* @param bytes bytes containing list of keyrings to import
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* @param dataUri uri to file to import keyrings from
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* @param serverQuery query to search for on the keyserver
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* @param keyserver keyserver authority to search on. If null will use keyserver from
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* user preferences
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*/
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private void startListFragment(Bundle savedInstanceState, byte[] bytes, Uri dataUri,
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String serverQuery, String keyserver) {
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// However, if we're being restored from a previous state,
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// then we don't need to do anything and should return or else
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// we could end up with overlapping fragments.
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if (savedInstanceState != null) {
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return;
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}
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mListFragment = ImportKeysListFragment.newInstance(bytes, dataUri, serverQuery, false,
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keyserver);
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// Add the fragment to the 'fragment_container' FrameLayout
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// NOTE: We use commitAllowingStateLoss() to prevent weird crashes!
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getSupportFragmentManager().beginTransaction()
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.replace(R.id.import_keys_list_container, mListFragment)
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.commitAllowingStateLoss();
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// do it immediately!
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getSupportFragmentManager().executePendingTransactions();
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}
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private void startFileFragment(Bundle savedInstanceState) {
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// However, if we're being restored from a previous state,
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// then we don't need to do anything and should return or else
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// we could end up with overlapping fragments.
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if (savedInstanceState != null) {
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return;
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}
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// Create an instance of the fragment
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mTopFragment = ImportKeysFileFragment.newInstance();
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// Add the fragment to the 'fragment_container' FrameLayout
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// NOTE: We use commitAllowingStateLoss() to prevent weird crashes!
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getSupportFragmentManager().beginTransaction()
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.replace(R.id.import_keys_top_container, mTopFragment)
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.commitAllowingStateLoss();
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// do it immediately!
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getSupportFragmentManager().executePendingTransactions();
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}
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/**
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* loads the CloudFragment, which consists of the search bar, search button and settings icon
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* visually.
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*
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* @param savedInstanceState
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* @param query search query
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* @param disableQueryEdit if true, user will not be able to edit the search query
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* @param keyserver keyserver authority to use for search, if null will use keyserver
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* specified in user preferences
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*/
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private void startCloudFragment(Bundle savedInstanceState, String query, boolean disableQueryEdit, String keyserver) {
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// However, if we're being restored from a previous state,
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// then we don't need to do anything and should return or else
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// we could end up with overlapping fragments.
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if (savedInstanceState != null) {
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return;
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}
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// Create an instance of the fragment
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mTopFragment = ImportKeysCloudFragment.newInstance(query, disableQueryEdit, keyserver);
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// Add the fragment to the 'fragment_container' FrameLayout
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// NOTE: We use commitAllowingStateLoss() to prevent weird crashes!
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getSupportFragmentManager().beginTransaction()
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.replace(R.id.import_keys_top_container, mTopFragment)
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.commitAllowingStateLoss();
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// do it immediately!
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getSupportFragmentManager().executePendingTransactions();
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}
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private boolean isFingerprintValid(String fingerprint) {
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if (fingerprint == null || fingerprint.length() < 40) {
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Notify.create(this, R.string.import_qr_code_too_short_fingerprint, Notify.Style.ERROR)
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.show((ViewGroup) findViewById(R.id.import_snackbar));
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return false;
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} else {
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return true;
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}
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}
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public void loadCallback(ImportKeysListFragment.LoaderState loaderState) {
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mListFragment.loadNew(loaderState);
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}
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/**
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* Import keys with mImportData
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*/
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public void importKeys() {
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// Message is received after importing is done in CloudImportService
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ServiceProgressHandler saveHandler = new ServiceProgressHandler(
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this,
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getString(R.string.progress_importing),
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ProgressDialog.STYLE_HORIZONTAL,
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true,
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ProgressDialogFragment.ServiceType.CLOUD_IMPORT) {
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public void handleMessage(Message message) {
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// handle messages by standard KeychainIntentServiceHandler first
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super.handleMessage(message);
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if (message.arg1 == MessageStatus.OKAY.ordinal()) {
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// get returned data bundle
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Bundle returnData = message.getData();
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if (returnData == null) {
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return;
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}
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final ImportKeyResult result =
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returnData.getParcelable(OperationResult.EXTRA_RESULT);
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if (result == null) {
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Log.e(Constants.TAG, "result == null");
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return;
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}
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if (ACTION_IMPORT_KEY_FROM_KEYSERVER_AND_RETURN_RESULT.equals(getIntent().getAction())
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|| ACTION_IMPORT_KEY_FROM_FILE_AND_RETURN.equals(getIntent().getAction())) {
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Intent intent = new Intent();
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intent.putExtra(ImportKeyResult.EXTRA_RESULT, result);
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ImportKeysActivity.this.setResult(RESULT_OK, intent);
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ImportKeysActivity.this.finish();
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return;
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}
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if (ACTION_IMPORT_KEY_FROM_KEYSERVER_AND_RETURN_TO_SERVICE.equals(getIntent().getAction())) {
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ImportKeysActivity.this.setResult(RESULT_OK, mPendingIntentData);
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ImportKeysActivity.this.finish();
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return;
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}
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result.createNotify(ImportKeysActivity.this)
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.show((ViewGroup) findViewById(R.id.import_snackbar));
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}
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}
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};
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ImportKeysListFragment.LoaderState ls = mListFragment.getLoaderState();
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if (ls instanceof ImportKeysListFragment.BytesLoaderState) {
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Log.d(Constants.TAG, "importKeys started");
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// Send all information needed to service to import key in other thread
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Intent intent = new Intent(this, CloudImportService.class);
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// fill values for this action
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Bundle data = new Bundle();
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// get DATA from selected key entries
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IteratorWithSize<ParcelableKeyRing> selectedEntries = mListFragment.getSelectedData();
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// instead of giving the entries by Intent extra, cache them into a
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// file to prevent Java Binder problems on heavy imports
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// read FileImportCache for more info.
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try {
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// We parcel this iteratively into a file - anything we can
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// display here, we should be able to import.
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ParcelableFileCache<ParcelableKeyRing> cache =
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new ParcelableFileCache<>(this, "key_import.pcl");
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cache.writeCache(selectedEntries);
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intent.putExtra(CloudImportService.EXTRA_DATA, data);
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// Create a new Messenger for the communication back
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Messenger messenger = new Messenger(saveHandler);
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intent.putExtra(CloudImportService.EXTRA_MESSENGER, messenger);
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// show progress dialog
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saveHandler.showProgressDialog(this);
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// start service with intent
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startService(intent);
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} catch (IOException e) {
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Log.e(Constants.TAG, "Problem writing cache file", e);
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Notify.create(this, "Problem writing cache file!", Notify.Style.ERROR)
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.show((ViewGroup) findViewById(R.id.import_snackbar));
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}
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} else if (ls instanceof ImportKeysListFragment.CloudLoaderState) {
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ImportKeysListFragment.CloudLoaderState sls = (ImportKeysListFragment.CloudLoaderState) ls;
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// Send all information needed to service to query keys in other thread
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Intent intent = new Intent(this, CloudImportService.class);
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// fill values for this action
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Bundle data = new Bundle();
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data.putString(CloudImportService.IMPORT_KEY_SERVER, sls.mCloudPrefs.keyserver);
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// get selected key entries
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ArrayList<ParcelableKeyRing> keys = new ArrayList<>();
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{
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// change the format into ParcelableKeyRing
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ArrayList<ImportKeysListEntry> entries = mListFragment.getSelectedEntries();
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for (ImportKeysListEntry entry : entries) {
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keys.add(new ParcelableKeyRing(
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entry.getFingerprintHex(), entry.getKeyIdHex(), entry.getExtraData())
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);
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}
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}
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data.putParcelableArrayList(CloudImportService.IMPORT_KEY_LIST, keys);
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intent.putExtra(CloudImportService.EXTRA_DATA, data);
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// Create a new Messenger for the communication back
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Messenger messenger = new Messenger(saveHandler);
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intent.putExtra(CloudImportService.EXTRA_MESSENGER, messenger);
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// show progress dialog
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saveHandler.showProgressDialog(this);
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// start service with intent
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startService(intent);
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} else {
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Notify.create(this, R.string.error_nothing_import, Notify.Style.ERROR)
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.show((ViewGroup) findViewById(R.id.import_snackbar));
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}
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}
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}
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