Merge "Do not bind TextClassifierService if the packge doesn't install." into sc-dev (4575821b) · Commits · e / os / android_frameworks_base

services/core/java/com/android/server/textclassifier/TextClassificationManagerService.java

+139 −0

Original line number	Diff line number	Diff line
		@@ -25,6 +25,8 @@ import android.content.Context;
		import android.content.Intent;
		import android.content.ServiceConnection;
		import android.content.pm.PackageManager;
		import android.content.pm.ResolveInfo;
		import android.content.pm.ServiceInfo;
		import android.graphics.drawable.Icon;
		import android.net.Uri;
		import android.os.Binder;
		@@ -59,6 +61,7 @@ import android.view.textclassifier.TextLinks;
		import android.view.textclassifier.TextSelection;

		import com.android.internal.annotations.GuardedBy;
		import com.android.internal.content.PackageMonitor;
		import com.android.internal.util.DumpUtils;
		import com.android.internal.util.FunctionalUtils;
		import com.android.internal.util.FunctionalUtils.ThrowingConsumer;
		@@ -110,6 +113,7 @@ public final class TextClassificationManagerService extends ITextClassifierServi
		try {
		publishBinderService(Context.TEXT_CLASSIFICATION_SERVICE, mManagerService);
		mManagerService.startListenSettings();
		mManagerService.startTrackingPackageChanges();
		} catch (Throwable t) {
		// Starting this service is not critical to the running of this device and should
		// therefore not crash the device. If it fails, log the error and continue.
		@@ -119,11 +123,14 @@ public final class TextClassificationManagerService extends ITextClassifierServi

		@Override
		public void onUserStarting(@NonNull TargetUser user) {
		updatePackageStateForUser(user.getUserIdentifier());
		processAnyPendingWork(user.getUserIdentifier());
		}

		@Override
		public void onUserUnlocking(@NonNull TargetUser user) {
		// refresh if we failed earlier due to locked encrypted user
		updatePackageStateForUser(user.getUserIdentifier());
		// Rebind if we failed earlier due to locked encrypted user
		processAnyPendingWork(user.getUserIdentifier());
		}
		@@ -134,6 +141,14 @@ public final class TextClassificationManagerService extends ITextClassifierServi
		}
		}

		private void updatePackageStateForUser(int userId) {
		synchronized (mManagerService.mLock) {
		// Update the cached disable status, the TextClassfier may not be direct boot aware,
		// we should update the disable status after user unlock
		mManagerService.getUserStateLocked(userId).updatePackageStateLocked();
		}
		}

		@Override
		public void onUserStopping(@NonNull TargetUser user) {
		int userId = user.getUserIdentifier();
		@@ -160,6 +175,8 @@ public final class TextClassificationManagerService extends ITextClassifierServi
		private final String mDefaultTextClassifierPackage;
		@Nullable
		private final String mSystemTextClassifierPackage;
		// TODO: consider using device config to control it.
		private boolean DEBUG = false;

		private TextClassificationManagerService(Context context) {
		mContext = Objects.requireNonNull(context);
		@@ -176,6 +193,46 @@ public final class TextClassificationManagerService extends ITextClassifierServi
		mSettingsListener.registerObserver();
		}

		void startTrackingPackageChanges() {
		final PackageMonitor monitor = new PackageMonitor() {

		@Override
		public void onPackageAdded(String packageName, int uid) {
		notifyPackageInstallStatusChange(packageName, /* installed*/ true);
		}

		@Override
		public void onPackageRemoved(String packageName, int uid) {
		notifyPackageInstallStatusChange(packageName, /* installed= */ false);
		}

		@Override
		public void onPackageModified(String packageName) {
		final int userId = getChangingUserId();
		synchronized (mLock) {
		final UserState userState = getUserStateLocked(userId);
		final ServiceState serviceState = userState.getServiceStateLocked(packageName);
		if (serviceState != null) {
		serviceState.onPackageModifiedLocked();
		}
		}
		}

		private void notifyPackageInstallStatusChange(String packageName, boolean installed) {
		final int userId = getChangingUserId();
		synchronized (mLock) {
		final UserState userState = getUserStateLocked(userId);
		final ServiceState serviceState = userState.getServiceStateLocked(packageName);
		if (serviceState != null) {
		serviceState.onPackageInstallStatusChangeLocked(installed);
		}
		}
		}
		};

		monitor.register(mContext, null, UserHandle.ALL, true);
		}

		@Override
		public void onConnectedStateChanged(@ConnectionState int connected) {
		}
		@@ -452,6 +509,14 @@ public final class TextClassificationManagerService extends ITextClassifierServi
		if (serviceState == null) {
		Slog.d(LOG_TAG, "No configured system TextClassifierService");
		callback.onFailure();
		} else if (!serviceState.isInstalledLocked() \|\| !serviceState.isEnabledLocked()) {
		if (DEBUG) {
		Slog.d(LOG_TAG,
		serviceState.mPackageName + " is not available in user " + userId
		+ ". Installed: " + serviceState.isInstalledLocked()
		+ ", enabled:" + serviceState.isEnabledLocked());
		}
		callback.onFailure();
		} else if (attemptToBind && !serviceState.bindLocked()) {
		Slog.d(LOG_TAG, "Unable to bind TextClassifierService at " + methodName);
		callback.onFailure();
		@@ -761,6 +826,24 @@ public final class TextClassificationManagerService extends ITextClassifierServi
		return serviceStates;
		}

		@GuardedBy("mLock")
		@Nullable
		private ServiceState getServiceStateLocked(String packageName) {
		for (ServiceState serviceState : getAllServiceStatesLocked()) {
		if (serviceState.mPackageName.equals(packageName)) {
		return serviceState;
		}
		}
		return null;
		}

		@GuardedBy("mLock")
		private void updatePackageStateLocked() {
		for (ServiceState serviceState : getAllServiceStatesLocked()) {
		serviceState.updatePackageStateLocked();
		}
		}

		void dump(IndentingPrintWriter pw) {
		synchronized (mLock) {
		pw.increaseIndent();
		@@ -814,6 +897,10 @@ public final class TextClassificationManagerService extends ITextClassifierServi
		ComponentName mBoundComponentName = null;
		@GuardedBy("mLock")
		int mBoundServiceUid = Process.INVALID_UID;
		@GuardedBy("mLock")
		boolean mInstalled;
		@GuardedBy("mLock")
		boolean mEnabled;

		private ServiceState(
		@UserIdInt int userId, @NonNull String packageName, boolean isTrusted) {
		@@ -822,6 +909,8 @@ public final class TextClassificationManagerService extends ITextClassifierServi
		mConnection = new TextClassifierServiceConnection(mUserId);
		mIsTrusted = isTrusted;
		mBindServiceFlags = createBindServiceFlags(packageName);
		mInstalled = isPackageInstalledForUser();
		mEnabled = isServiceEnabledForUser();
		}

		@Context.BindServiceFlags
		@@ -833,6 +922,54 @@ public final class TextClassificationManagerService extends ITextClassifierServi
		return flags;
		}

		private boolean isPackageInstalledForUser() {
		try {
		PackageManager packageManager = mContext.getPackageManager();
		return packageManager.getPackageInfoAsUser(mPackageName, 0, mUserId) != null;
		} catch (PackageManager.NameNotFoundException e) {
		return false;
		}
		}

		private boolean isServiceEnabledForUser() {
		PackageManager packageManager = mContext.getPackageManager();
		Intent intent = new Intent(TextClassifierService.SERVICE_INTERFACE);
		intent.setPackage(mPackageName);
		ResolveInfo resolveInfo = packageManager.resolveServiceAsUser(intent,
		PackageManager.GET_SERVICES, mUserId);
		ServiceInfo serviceInfo = resolveInfo == null ? null : resolveInfo.serviceInfo;
		return serviceInfo != null;
		}

		@GuardedBy("mLock")
		@NonNull
		private void onPackageInstallStatusChangeLocked(boolean installed) {
		mInstalled = installed;
		}

		@GuardedBy("mLock")
		@NonNull
		private void onPackageModifiedLocked() {
		mEnabled = isServiceEnabledForUser();
		}

		@GuardedBy("mLock")
		@NonNull
		private void updatePackageStateLocked() {
		mInstalled = isPackageInstalledForUser();
		mEnabled = isServiceEnabledForUser();
		}

		@GuardedBy("mLock")
		boolean isInstalledLocked() {
		return mInstalled;
		}

		@GuardedBy("mLock")
		boolean isEnabledLocked() {
		return mEnabled;
		}

		@GuardedBy("mLock")
		boolean isBoundLocked() {
		return mService != null;
		@@ -923,6 +1060,8 @@ public final class TextClassificationManagerService extends ITextClassifierServi
		pw.printPair("userId", mUserId);
		synchronized (mLock) {
		pw.printPair("packageName", mPackageName);
		pw.printPair("installed", mInstalled);
		pw.printPair("enabled", mEnabled);
		pw.printPair("boundComponentName", mBoundComponentName);
		pw.printPair("isTrusted", mIsTrusted);
		pw.printPair("bindServiceFlags", mBindServiceFlags);