dc5e10e3cc
This adds two guards, first checking when the provider list is generated to stop and flag an warning, second to have PackageMonitor use a handler so callbacks should only happen on the thread that the fragment is running on and if that is no longer available it won't do anything. Test: ondevice Bug: 296164461 Change-Id: Iab03f8a10e667694e2e23da7574831f9ea5c38e2
437 lines
16 KiB
Java
437 lines
16 KiB
Java
/*
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* Copyright (C) 2023 The Android Open Source Project
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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 com.android.settings.applications.credentials;
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import android.annotation.Nullable;
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import android.app.Activity;
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import android.app.settings.SettingsEnums;
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import android.content.Context;
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import android.content.DialogInterface;
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import android.content.Intent;
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import android.content.pm.ServiceInfo;
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import android.credentials.CredentialManager;
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import android.credentials.CredentialProviderInfo;
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import android.credentials.SetEnabledProvidersException;
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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.os.Looper;
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import android.os.OutcomeReceiver;
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import android.os.UserHandle;
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import android.provider.Settings;
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import android.service.autofill.AutofillServiceInfo;
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import android.text.Html;
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import android.text.TextUtils;
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import android.util.Log;
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import androidx.core.content.ContextCompat;
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import androidx.preference.Preference;
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import com.android.internal.content.PackageMonitor;
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import com.android.settings.R;
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import com.android.settings.applications.defaultapps.DefaultAppPickerFragment;
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import com.android.settingslib.applications.DefaultAppInfo;
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import com.android.settingslib.widget.CandidateInfo;
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import java.util.ArrayList;
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import java.util.List;
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public class DefaultCombinedPicker extends DefaultAppPickerFragment {
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private static final String TAG = "DefaultCombinedPicker";
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public static final String AUTOFILL_SETTING = Settings.Secure.AUTOFILL_SERVICE;
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public static final String CREDENTIAL_SETTING = Settings.Secure.CREDENTIAL_SERVICE;
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/** Extra set when the fragment is implementing ACTION_REQUEST_SET_AUTOFILL_SERVICE. */
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public static final String EXTRA_PACKAGE_NAME = "package_name";
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/** Set when the fragment is implementing ACTION_REQUEST_SET_AUTOFILL_SERVICE. */
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private DialogInterface.OnClickListener mCancelListener;
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private CredentialManager mCredentialManager;
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private int mIntentSenderUserId = -1;
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private static final Handler sMainHandler = new Handler(Looper.getMainLooper());
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@Override
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public void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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final Activity activity = getActivity();
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if (activity != null && activity.getIntent().getStringExtra(EXTRA_PACKAGE_NAME) != null) {
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mCancelListener =
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(d, w) -> {
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activity.setResult(Activity.RESULT_CANCELED);
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activity.finish();
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};
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// If mCancelListener is not null, fragment is started from
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// ACTION_REQUEST_SET_AUTOFILL_SERVICE and we should always use the calling uid.
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mIntentSenderUserId = UserHandle.myUserId();
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}
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getUser();
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mSettingsPackageMonitor.register(activity, activity.getMainLooper(), false);
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update();
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}
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@Override
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protected DefaultAppPickerFragment.ConfirmationDialogFragment newConfirmationDialogFragment(
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String selectedKey, CharSequence confirmationMessage) {
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final AutofillPickerConfirmationDialogFragment fragment =
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new AutofillPickerConfirmationDialogFragment();
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fragment.init(this, selectedKey, confirmationMessage);
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return fragment;
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}
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/**
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* Custom dialog fragment that has a cancel listener used to propagate the result back to caller
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* (for the cases where the picker is launched by {@code
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* android.settings.REQUEST_SET_AUTOFILL_SERVICE}.
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*/
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public static class AutofillPickerConfirmationDialogFragment
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extends DefaultAppPickerFragment.ConfirmationDialogFragment {
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@Override
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public void onCreate(Bundle savedInstanceState) {
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final DefaultCombinedPicker target = (DefaultCombinedPicker) getTargetFragment();
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setCancelListener(target.mCancelListener);
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super.onCreate(savedInstanceState);
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}
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}
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@Override
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protected int getPreferenceScreenResId() {
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return R.xml.default_credman_picker;
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}
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@Override
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public int getMetricsCategory() {
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return SettingsEnums.DEFAULT_AUTOFILL_PICKER;
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}
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@Override
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protected boolean shouldShowItemNone() {
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return true;
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}
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/** Monitor coming and going auto fill services and calls {@link #update()} when necessary */
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private final PackageMonitor mSettingsPackageMonitor =
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new PackageMonitor() {
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@Override
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public void onPackageAdded(String packageName, int uid) {
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sMainHandler.post(
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() -> {
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// See b/296164461 for context
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if (getContext() == null) {
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Log.w(TAG, "context is null");
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return;
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}
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update();
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});
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}
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@Override
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public void onPackageModified(String packageName) {
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sMainHandler.post(
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() -> {
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// See b/296164461 for context
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if (getContext() == null) {
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Log.w(TAG, "context is null");
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return;
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}
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update();
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});
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}
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@Override
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public void onPackageRemoved(String packageName, int uid) {
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sMainHandler.post(
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() -> {
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// See b/296164461 for context
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if (getContext() == null) {
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Log.w(TAG, "context is null");
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return;
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}
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update();
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});
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}
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};
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/** Update the data in this UI. */
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private void update() {
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updateCandidates();
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addAddServicePreference();
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}
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@Override
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public void onDestroy() {
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mSettingsPackageMonitor.unregister();
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super.onDestroy();
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}
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/**
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* Gets the preference that allows to add a new autofill service.
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*
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* @return The preference or {@code null} if no service can be added
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*/
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private Preference newAddServicePreferenceOrNull() {
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final String searchUri =
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Settings.Secure.getStringForUser(
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getActivity().getContentResolver(),
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Settings.Secure.AUTOFILL_SERVICE_SEARCH_URI,
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getUser());
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if (TextUtils.isEmpty(searchUri)) {
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return null;
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}
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final Intent addNewServiceIntent = new Intent(Intent.ACTION_VIEW, Uri.parse(searchUri));
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final Context context = getPrefContext();
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final Preference preference = new Preference(context);
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preference.setOnPreferenceClickListener(
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p -> {
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context.startActivityAsUser(addNewServiceIntent, UserHandle.of(getUser()));
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return true;
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});
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preference.setTitle(R.string.print_menu_item_add_service);
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preference.setIcon(R.drawable.ic_add_24dp);
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preference.setOrder(Integer.MAX_VALUE - 1);
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preference.setPersistent(false);
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return preference;
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}
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/**
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* Add a preference that allows the user to add a service if the market link for that is
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* configured.
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*/
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private void addAddServicePreference() {
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final Preference addNewServicePreference = newAddServicePreferenceOrNull();
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if (addNewServicePreference != null) {
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getPreferenceScreen().addPreference(addNewServicePreference);
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}
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}
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/**
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* Get the Credential Manager service if we haven't already got it. We need to get the service
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* later because if we do it in onCreate it will fail.
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*/
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private @Nullable CredentialManager getCredentialProviderService() {
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if (mCredentialManager == null) {
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mCredentialManager = getContext().getSystemService(CredentialManager.class);
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}
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return mCredentialManager;
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}
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private List<CombinedProviderInfo> getAllProviders() {
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final Context context = getContext();
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final List<AutofillServiceInfo> autofillProviders =
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AutofillServiceInfo.getAvailableServices(context, getUser());
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final CredentialManager service = getCredentialProviderService();
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final List<CredentialProviderInfo> credManProviders = new ArrayList<>();
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if (service != null) {
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credManProviders.addAll(
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service.getCredentialProviderServices(
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getUser(), CredentialManager.PROVIDER_FILTER_USER_PROVIDERS_ONLY));
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}
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final String selectedAutofillProvider = getSelectedAutofillProvider(context, getUser());
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return CombinedProviderInfo.buildMergedList(
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autofillProviders, credManProviders, selectedAutofillProvider);
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}
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public static String getSelectedAutofillProvider(Context context, int userId) {
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return Settings.Secure.getStringForUser(
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context.getContentResolver(), AUTOFILL_SETTING, userId);
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}
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protected List<DefaultAppInfo> getCandidates() {
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final Context context = getContext();
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final List<CombinedProviderInfo> allProviders = getAllProviders();
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final List<DefaultAppInfo> candidates = new ArrayList<>();
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for (CombinedProviderInfo cpi : allProviders) {
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ServiceInfo brandingService = cpi.getBrandingService();
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if (brandingService == null) {
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candidates.add(
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new DefaultAppInfo(
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context,
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mPm,
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getUser(),
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cpi.getApplicationInfo(),
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cpi.getSettingsSubtitle(),
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true));
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} else {
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candidates.add(
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new DefaultAppInfo(
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context,
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mPm,
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getUser(),
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brandingService,
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cpi.getSettingsSubtitle(),
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true));
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}
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}
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return candidates;
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}
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@Override
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protected String getDefaultKey() {
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final CombinedProviderInfo topProvider =
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CombinedProviderInfo.getTopProvider(getAllProviders());
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return topProvider == null ? "" : topProvider.getApplicationInfo().packageName;
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}
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@Override
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protected CharSequence getConfirmationMessage(CandidateInfo appInfo) {
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// If we are selecting none then show a warning label.
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if (appInfo == null) {
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final String message = getContext().getString(R.string.credman_confirmation_message);
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return Html.fromHtml(message);
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}
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final CharSequence appName = appInfo.loadLabel();
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final String message =
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getContext()
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.getString(
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R.string.credman_autofill_confirmation_message,
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Html.escapeHtml(appName));
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return Html.fromHtml(message);
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}
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@Override
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protected boolean setDefaultKey(String key) {
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// Get the list of providers and see if any match the key (package name).
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final List<CombinedProviderInfo> allProviders = getAllProviders();
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CombinedProviderInfo matchedProvider = null;
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for (CombinedProviderInfo cpi : allProviders) {
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if (cpi.getApplicationInfo().packageName.equals(key)) {
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matchedProvider = cpi;
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break;
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}
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}
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// If there were none then clear the stored providers.
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if (matchedProvider == null) {
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setProviders(null, new ArrayList<>());
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return true;
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}
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// Get the component names and save them.
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final List<String> credManComponents = new ArrayList<>();
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for (CredentialProviderInfo pi : matchedProvider.getCredentialProviderInfos()) {
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credManComponents.add(pi.getServiceInfo().getComponentName().flattenToString());
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}
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String autofillValue = null;
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if (matchedProvider.getAutofillServiceInfo() != null) {
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autofillValue =
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matchedProvider
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.getAutofillServiceInfo()
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.getServiceInfo()
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.getComponentName()
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.flattenToString();
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}
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setProviders(autofillValue, credManComponents);
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// Check if activity was launched from Settings.ACTION_REQUEST_SET_AUTOFILL_SERVICE
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// intent, and set proper result if so...
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final Activity activity = getActivity();
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if (activity != null) {
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final String packageName = activity.getIntent().getStringExtra(EXTRA_PACKAGE_NAME);
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if (packageName != null) {
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final int result =
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key != null && key.startsWith(packageName)
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? Activity.RESULT_OK
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: Activity.RESULT_CANCELED;
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activity.setResult(result);
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activity.finish();
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}
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}
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// TODO: Notify the rest
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return true;
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}
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private void setProviders(String autofillProvider, List<String> primaryCredManProviders) {
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if (TextUtils.isEmpty(autofillProvider)) {
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if (primaryCredManProviders.size() > 0) {
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autofillProvider =
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CredentialManagerPreferenceController
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.AUTOFILL_CREDMAN_ONLY_PROVIDER_PLACEHOLDER;
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}
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}
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Settings.Secure.putStringForUser(
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getContext().getContentResolver(), AUTOFILL_SETTING, autofillProvider, getUser());
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final CredentialManager service = getCredentialProviderService();
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if (service == null) {
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return;
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}
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// Get the existing secondary providers since we don't touch them in
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// this part of the UI we should just copy them over.
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final List<String> credManProviders = new ArrayList<>();
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for (CredentialProviderInfo cpi :
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service.getCredentialProviderServices(
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getUser(), CredentialManager.PROVIDER_FILTER_USER_PROVIDERS_ONLY)) {
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if (cpi.isEnabled() && !cpi.isPrimary()) {
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credManProviders.add(cpi.getServiceInfo().getComponentName().flattenToString());
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}
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}
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credManProviders.addAll(primaryCredManProviders);
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// If there is no provider then clear all the providers.
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if (TextUtils.isEmpty(autofillProvider) && primaryCredManProviders.isEmpty()) {
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credManProviders.clear();
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}
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service.setEnabledProviders(
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primaryCredManProviders,
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credManProviders,
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getUser(),
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ContextCompat.getMainExecutor(getContext()),
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new OutcomeReceiver<Void, SetEnabledProvidersException>() {
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@Override
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public void onResult(Void result) {
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Log.i(TAG, "setEnabledProviders success");
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}
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@Override
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public void onError(SetEnabledProvidersException e) {
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Log.e(TAG, "setEnabledProviders error: " + e.toString());
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}
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});
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}
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protected int getUser() {
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if (mIntentSenderUserId >= 0) {
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return mIntentSenderUserId;
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}
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return UserHandle.myUserId();
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}
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}
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