464 lines
20 KiB
Java
464 lines
20 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.Activity;
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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.support.v4.app.Fragment;
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import android.support.v4.app.FragmentManager;
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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.FacebookKeyserver;
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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.service.ImportKeyringParcel;
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import org.sufficientlysecure.keychain.ui.base.BaseSecurityTokenNfcActivity;
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import org.sufficientlysecure.keychain.ui.base.CryptoOperationHelper;
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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 org.sufficientlysecure.keychain.util.Preferences;
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import java.io.IOException;
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import java.util.ArrayList;
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public class ImportKeysActivity extends BaseSecurityTokenNfcActivity
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implements CryptoOperationHelper.Callback<ImportKeyringParcel, ImportKeyResult> {
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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_FACEBOOK
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= Constants.INTENT_PREFIX + "IMPORT_KEY_FROM_FACEBOOK";
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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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public static final String TAG_FRAG_LIST = "frag_list";
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public static final String TAG_FRAG_TOP = "frag_top";
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// for CryptoOperationHelper.Callback
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private String mKeyserver;
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private ArrayList<ParcelableKeyRing> mKeyList;
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private CryptoOperationHelper<ImportKeyringParcel, ImportKeyResult> mOperationHelper;
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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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setFullScreenDialogClose(Activity.RESULT_CANCELED, true);
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findViewById(R.id.import_import).setOnClickListener(new OnClickListener() {
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@Override
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public void onClick(View v) {
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importSelectedKeys();
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}
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});
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// only used for OpenPgpService
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if (getIntent().hasExtra(EXTRA_PENDING_INTENT_DATA)) {
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mPendingIntentData = getIntent().getParcelableExtra(EXTRA_PENDING_INTENT_DATA);
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}
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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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@Override
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public void onNewIntent(Intent intent) {
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super.onNewIntent(intent);
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setIntent(intent);
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}
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@Override
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protected void onResumeFragments() {
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super.onResumeFragments();
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handleActions(getIntent());
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}
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protected void handleActions(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 (Intent.ACTION_VIEW.equals(action)) {
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if (FacebookKeyserver.isFacebookHost(dataUri)) {
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action = ACTION_IMPORT_KEY_FROM_FACEBOOK;
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} else if ("http".equals(scheme) || "https".equals(scheme)) {
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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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if (action == null) {
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// -> switch to default below
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action = "";
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}
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switch (action) {
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case ACTION_IMPORT_KEY: {
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if (dataUri != null) {
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// action: directly load data
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startListFragment(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(importData, null, null, null);
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} else {
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startTopFileFragment();
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startListFragment(null, 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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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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startTopCloudFragment(query, false, null);
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// action: search immediately
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startListFragment(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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startTopCloudFragment(query, true, null);
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// action: search immediately
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startListFragment(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_FACEBOOK: {
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String fbUsername = FacebookKeyserver.getUsernameFromUri(dataUri);
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Preferences.CloudSearchPrefs cloudSearchPrefs =
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new Preferences.CloudSearchPrefs(false, true, true, null);
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// we allow our users to edit the query if they wish
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startTopCloudFragment(fbUsername, false, cloudSearchPrefs);
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// search immediately
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startListFragment(null, null, fbUsername, cloudSearchPrefs);
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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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// 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();
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}
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Preferences.CloudSearchPrefs cloudSearchPrefs = new Preferences.CloudSearchPrefs(
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true, true, true, dataUri.getAuthority());
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// we allow our users to edit the query if they wish
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startTopCloudFragment(query, false, cloudSearchPrefs);
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// search immediately (if query is not null)
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startListFragment(null, null, query, cloudSearchPrefs);
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break;
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}
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case ACTION_IMPORT_KEY_FROM_FILE:
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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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startTopFileFragment();
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startListFragment(null, null, null, null);
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break;
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}
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default: {
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startTopCloudFragment(null, false, null);
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startListFragment(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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@Override
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protected void onRestoreInstanceState(Bundle savedInstanceState) {
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super.onRestoreInstanceState(savedInstanceState);
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// the only thing we need to take care of for restoring state is
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// that the top layout is shown iff it contains a fragment
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Fragment topFragment = getSupportFragmentManager().findFragmentByTag(TAG_FRAG_TOP);
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boolean hasTopFragment = topFragment != null;
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findViewById(R.id.import_keys_top_layout).setVisibility(hasTopFragment ? View.VISIBLE : View.GONE);
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}
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/**
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* Shows the list of keys to be imported.
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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 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 cloudSearchPrefs search specifications to use. If null will retrieve from user's
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* preferences.
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*/
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private void startListFragment(byte[] bytes, Uri dataUri, String serverQuery,
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Preferences.CloudSearchPrefs cloudSearchPrefs) {
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Fragment listFragment =
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ImportKeysListFragment.newInstance(bytes, dataUri, serverQuery, false,
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cloudSearchPrefs);
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getSupportFragmentManager().beginTransaction()
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.replace(R.id.import_keys_list_container, listFragment, TAG_FRAG_LIST)
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.commit();
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}
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private void startTopFileFragment() {
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findViewById(R.id.import_keys_top_layout).setVisibility(View.VISIBLE);
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Fragment importFileFragment = ImportKeysFileFragment.newInstance();
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getSupportFragmentManager().beginTransaction()
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.replace(R.id.import_keys_top_container, importFileFragment, TAG_FRAG_TOP)
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.commit();
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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 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 cloudSearchPrefs 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 startTopCloudFragment(String query, boolean disableQueryEdit,
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Preferences.CloudSearchPrefs cloudSearchPrefs) {
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findViewById(R.id.import_keys_top_layout).setVisibility(View.VISIBLE);
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Fragment importCloudFragment = ImportKeysCloudFragment.newInstance(query, disableQueryEdit,
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cloudSearchPrefs);
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getSupportFragmentManager().beginTransaction()
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.replace(R.id.import_keys_top_container, importCloudFragment, TAG_FRAG_TOP)
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.commit();
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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(final ImportKeysListFragment.LoaderState loaderState) {
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FragmentManager fragMan = getSupportFragmentManager();
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ImportKeysListFragment keyListFragment = (ImportKeysListFragment) fragMan.findFragmentByTag(TAG_FRAG_LIST);
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keyListFragment.loadNew(loaderState);
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}
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private void importSelectedKeys() {
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FragmentManager fragMan = getSupportFragmentManager();
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ImportKeysListFragment keyListFragment = (ImportKeysListFragment) fragMan.findFragmentByTag(TAG_FRAG_LIST);
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if (keyListFragment.getSelectedEntries().size() == 0) {
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Notify.create(this, R.string.error_nothing_import_selected, Notify.Style.ERROR)
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.show((ViewGroup) findViewById(R.id.import_snackbar));
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return;
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}
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mOperationHelper = new CryptoOperationHelper<>(
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1, this, this, R.string.progress_importing
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);
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ImportKeysListFragment.LoaderState ls = keyListFragment.getLoaderState();
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if (ls instanceof ImportKeysListFragment.BytesLoaderState) {
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Log.d(Constants.TAG, "importKeys started");
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// get DATA from selected key entries
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IteratorWithSize<ParcelableKeyRing> selectedEntries = keyListFragment.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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mKeyList = null;
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mKeyserver = null;
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mOperationHelper.cryptoOperation();
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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 =
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(ImportKeysListFragment.CloudLoaderState) ls;
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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 = keyListFragment.getSelectedEntries();
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for (ImportKeysListEntry entry : entries) {
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keys.add(new ParcelableKeyRing(entry.getFingerprintHex(),
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entry.getKeyIdHex(), entry.getKeybaseName(), entry.getFbUsername()));
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}
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}
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mKeyList = keys;
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mKeyserver = sls.mCloudPrefs.keyserver;
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mOperationHelper.cryptoOperation();
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}
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}
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@Override
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protected void onNfcPostExecute() {
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// either way, finish after NFC AsyncTask
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finish();
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}
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@Override
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public void onActivityResult(int requestCode, int resultCode, Intent data) {
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if (mOperationHelper != null &&
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mOperationHelper.handleActivityResult(requestCode, resultCode, data)) {
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return;
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}
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super.onActivityResult(requestCode, resultCode, data);
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}
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public void handleResult(ImportKeyResult result) {
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String intentAction = getIntent().getAction();
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if (ACTION_IMPORT_KEY_FROM_KEYSERVER_AND_RETURN_RESULT.equals(intentAction)
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|| ACTION_IMPORT_KEY_FROM_FILE_AND_RETURN.equals(intentAction)) {
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Intent intent = new Intent();
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intent.putExtra(ImportKeyResult.EXTRA_RESULT, result);
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setResult(RESULT_OK, intent);
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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(intentAction)) {
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setResult(RESULT_OK, mPendingIntentData);
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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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// methods from CryptoOperationHelper.Callback
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@Override
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public ImportKeyringParcel createOperationInput() {
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return new ImportKeyringParcel(mKeyList, mKeyserver);
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}
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@Override
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public void onCryptoOperationSuccess(ImportKeyResult result) {
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handleResult(result);
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}
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@Override
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public void onCryptoOperationCancelled() {
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// do nothing
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}
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@Override
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public void onCryptoOperationError(ImportKeyResult result) {
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handleResult(result);
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}
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@Override
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public boolean onCryptoSetProgress(String msg, int progress, int max) {
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return false;
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}
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}
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