| /* |
| * Copyright (C) 2021 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.server.appsearch.contactsindexer; |
| |
| import static android.os.Process.INVALID_UID; |
| |
| import android.annotation.NonNull; |
| import android.annotation.UserIdInt; |
| import android.content.BroadcastReceiver; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.IntentFilter; |
| import android.content.pm.PackageManager; |
| import android.content.pm.ProviderInfo; |
| import android.os.CancellationSignal; |
| import android.os.PatternMatcher; |
| import android.os.UserHandle; |
| import android.provider.ContactsContract; |
| import android.util.Log; |
| import android.util.SparseArray; |
| |
| import com.android.internal.annotations.VisibleForTesting; |
| import com.android.server.LocalManagerRegistry; |
| import com.android.server.SystemService; |
| import com.android.server.appsearch.AppSearchModule; |
| |
| import java.io.File; |
| import java.util.List; |
| import java.util.Objects; |
| |
| /** |
| * Manages the per device-user ContactsIndexer instance to index CP2 contacts into AppSearch. |
| * |
| * <p>This class is thread-safe. |
| * |
| * @hide |
| */ |
| public final class ContactsIndexerManagerService extends SystemService { |
| static final String TAG = "ContactsIndexerManagerService"; |
| |
| private static final String DEFAULT_CONTACTS_PROVIDER_PACKAGE_NAME = |
| "com.android.providers.contacts"; |
| |
| private final Context mContext; |
| private final ContactsIndexerConfig mContactsIndexerConfig; |
| private final LocalService mLocalService; |
| // Sparse array of ContactsIndexerUserInstance indexed by the device-user ID. |
| private final SparseArray<ContactsIndexerUserInstance> mContactsIndexersLocked = |
| new SparseArray<>(); |
| |
| private String mContactsProviderPackageName; |
| |
| /** Constructs a {@link ContactsIndexerManagerService}. */ |
| public ContactsIndexerManagerService(@NonNull Context context, |
| @NonNull ContactsIndexerConfig contactsIndexerConfig) { |
| super(context); |
| mContext = Objects.requireNonNull(context); |
| mContactsIndexerConfig = Objects.requireNonNull(contactsIndexerConfig); |
| mLocalService = new LocalService(); |
| } |
| |
| @Override |
| public void onStart() { |
| mContactsProviderPackageName = getContactsProviderPackageName(); |
| registerReceivers(); |
| LocalManagerRegistry.addManager(LocalService.class, mLocalService); |
| } |
| |
| @Override |
| public void onUserUnlocking(@NonNull TargetUser user) { |
| Objects.requireNonNull(user); |
| UserHandle userHandle = user.getUserHandle(); |
| synchronized (mContactsIndexersLocked) { |
| int userId = userHandle.getIdentifier(); |
| ContactsIndexerUserInstance instance = mContactsIndexersLocked.get(userId); |
| if (instance == null) { |
| Context userContext = mContext.createContextAsUser(userHandle, /*flags=*/ 0); |
| File appSearchDir = AppSearchModule.getAppSearchDir(userHandle); |
| File contactsDir = new File(appSearchDir, "contacts"); |
| try { |
| instance = ContactsIndexerUserInstance.createInstance(userContext, contactsDir, |
| mContactsIndexerConfig); |
| Log.d(TAG, "Created Contacts Indexer instance for user " + userHandle); |
| } catch (Throwable t) { |
| Log.e(TAG, "Failed to create Contacts Indexer instance for user " |
| + userHandle, t); |
| return; |
| } |
| mContactsIndexersLocked.put(userId, instance); |
| } |
| instance.startAsync(); |
| } |
| } |
| |
| @Override |
| public void onUserStopping(@NonNull TargetUser user) { |
| Objects.requireNonNull(user); |
| UserHandle userHandle = user.getUserHandle(); |
| synchronized (mContactsIndexersLocked) { |
| int userId = userHandle.getIdentifier(); |
| ContactsIndexerUserInstance instance = mContactsIndexersLocked.get(userId); |
| if (instance != null) { |
| mContactsIndexersLocked.delete(userId); |
| try { |
| instance.shutdown(); |
| } catch (InterruptedException e) { |
| Log.w(TAG, "Failed to shutdown contacts indexer for " + userHandle, e); |
| } |
| } |
| } |
| } |
| |
| /** |
| * Returns the package name where the Contacts Provider is hosted. |
| */ |
| private String getContactsProviderPackageName() { |
| PackageManager pm = mContext.getPackageManager(); |
| List<ProviderInfo> providers = pm.queryContentProviders(/*processName=*/ null, /*uid=*/ 0, |
| PackageManager.ComponentInfoFlags.of(0)); |
| for (int i = 0; i < providers.size(); i++) { |
| ProviderInfo providerInfo = providers.get(i); |
| if (ContactsContract.AUTHORITY.equals(providerInfo.authority)) { |
| return providerInfo.packageName; |
| } |
| } |
| return DEFAULT_CONTACTS_PROVIDER_PACKAGE_NAME; |
| } |
| |
| /** |
| * Registers a broadcast receiver to get package changed (disabled/enabled) and package data |
| * cleared events for CP2. |
| */ |
| private void registerReceivers() { |
| IntentFilter contactsProviderChangedFilter = new IntentFilter(); |
| contactsProviderChangedFilter.addAction(Intent.ACTION_PACKAGE_CHANGED); |
| contactsProviderChangedFilter.addAction(Intent.ACTION_PACKAGE_DATA_CLEARED); |
| contactsProviderChangedFilter.addDataScheme("package"); |
| contactsProviderChangedFilter.addDataSchemeSpecificPart(mContactsProviderPackageName, |
| PatternMatcher.PATTERN_LITERAL); |
| mContext.registerReceiverForAllUsers( |
| new ContactsProviderChangedReceiver(), |
| contactsProviderChangedFilter, |
| /*broadcastPermission=*/ null, |
| /*scheduler=*/ null); |
| Log.v(TAG, "Registered receiver for CP2 (package: " + mContactsProviderPackageName + ")" |
| + " data cleared events"); |
| } |
| |
| /** |
| * Broadcast receiver to handle CP2 changed (disabled/enabled) and package data cleared events. |
| * |
| * <p>Contacts indexer syncs on-device contacts from ContactsProvider (CP2) denoted by {@link |
| * android.provider.ContactsContract.Contacts#AUTHORITY} into the AppSearch "builtin:Person" |
| * corpus under the "android" package name. The default package which hosts CP2 is |
| * "com.android.providers.contacts" but it could be different on OEM devices. Since the Android |
| * package that hosts CP2 is different from the package name that "owns" the builtin:Person |
| * corpus in AppSearch, clearing the CP2 package data doesn't automatically clear the |
| * builtin:Person corpus in AppSearch. |
| * |
| * <p>This broadcast receiver allows contacts indexer to listen to events which indicate that |
| * CP2 data was cleared and force a full sync of CP2 contacts into AppSearch. |
| */ |
| private class ContactsProviderChangedReceiver extends BroadcastReceiver { |
| |
| @Override |
| public void onReceive(@NonNull Context context, @NonNull Intent intent) { |
| Objects.requireNonNull(context); |
| Objects.requireNonNull(intent); |
| |
| switch (intent.getAction()) { |
| case Intent.ACTION_PACKAGE_CHANGED: |
| case Intent.ACTION_PACKAGE_DATA_CLEARED: |
| String packageName = intent.getData().getSchemeSpecificPart(); |
| Log.v(TAG, "Received package data cleared event for " + packageName); |
| if (!mContactsProviderPackageName.equals(packageName)) { |
| return; |
| } |
| int uid = intent.getIntExtra(Intent.EXTRA_UID, INVALID_UID); |
| if (uid == INVALID_UID) { |
| Log.w(TAG, "uid is missing in the intent: " + intent); |
| return; |
| } |
| int userId = UserHandle.getUserHandleForUid(uid).getIdentifier(); |
| mLocalService.doFullUpdateForUser(userId, new CancellationSignal()); |
| break; |
| default: |
| Log.w(TAG, "Received unknown intent: " + intent); |
| } |
| } |
| } |
| |
| class LocalService { |
| void doFullUpdateForUser(@UserIdInt int userId, @NonNull CancellationSignal signal) { |
| Objects.requireNonNull(signal); |
| synchronized (mContactsIndexersLocked) { |
| ContactsIndexerUserInstance instance = mContactsIndexersLocked.get(userId); |
| if (instance != null) { |
| instance.doFullUpdateAsync(signal); |
| } |
| } |
| } |
| } |
| } |