/* * Copyright (C) 2014 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.voiceinteraction; import android.Manifest; import android.app.ActivityManager; import android.app.ActivityManagerInternal; import android.app.AppGlobals; import android.content.ComponentName; import android.content.ContentResolver; import android.content.Context; import android.content.Intent; import android.content.pm.ApplicationInfo; import android.content.pm.IPackageManager; import android.content.pm.PackageManager; import android.content.pm.PackageManagerInternal; import android.content.pm.ResolveInfo; import android.content.pm.ServiceInfo; import android.content.res.Resources; import android.database.ContentObserver; import android.hardware.soundtrigger.IRecognitionStatusCallback; import android.hardware.soundtrigger.SoundTrigger.KeyphraseSoundModel; import android.hardware.soundtrigger.SoundTrigger.ModuleProperties; import android.hardware.soundtrigger.SoundTrigger.RecognitionConfig; import android.os.Binder; import android.os.Bundle; import android.os.Handler; import android.os.IBinder; import android.os.Parcel; import android.os.RemoteException; import android.os.UserHandle; import android.provider.Settings; import android.service.voice.IVoiceInteractionService; import android.service.voice.IVoiceInteractionSession; import android.service.voice.VoiceInteractionManagerInternal; import android.service.voice.VoiceInteractionService; import android.service.voice.VoiceInteractionServiceInfo; import android.service.voice.VoiceInteractionSession; import android.speech.RecognitionService; import android.text.TextUtils; import android.util.Log; import android.util.Slog; import com.android.internal.app.IVoiceInteractionManagerService; import com.android.internal.app.IVoiceInteractionSessionShowCallback; import com.android.internal.app.IVoiceInteractor; import com.android.internal.content.PackageMonitor; import com.android.internal.os.BackgroundThread; import com.android.server.LocalServices; import com.android.server.soundtrigger.SoundTriggerInternal; import com.android.server.SystemService; import com.android.server.UiThread; import java.io.FileDescriptor; import java.io.PrintWriter; import java.util.List; import java.util.TreeSet; /** * SystemService that publishes an IVoiceInteractionManagerService. */ public class VoiceInteractionManagerService extends SystemService { static final String TAG = "VoiceInteractionManagerService"; static final boolean DEBUG = false; final Context mContext; final ContentResolver mResolver; final DatabaseHelper mDbHelper; final ActivityManagerInternal mAmInternal; final TreeSet mLoadedKeyphraseIds; SoundTriggerInternal mSoundTriggerInternal; public VoiceInteractionManagerService(Context context) { super(context); mContext = context; mResolver = context.getContentResolver(); mDbHelper = new DatabaseHelper(context); mServiceStub = new VoiceInteractionManagerServiceStub(); mAmInternal = LocalServices.getService(ActivityManagerInternal.class); mLoadedKeyphraseIds = new TreeSet(); PackageManagerInternal packageManagerInternal = LocalServices.getService( PackageManagerInternal.class); packageManagerInternal.setVoiceInteractionPackagesProvider( new PackageManagerInternal.PackagesProvider() { @Override public String[] getPackages(int userId) { mServiceStub.initForUser(userId); ComponentName interactor = mServiceStub.getCurInteractor(userId); if (interactor != null) { return new String[] {interactor.getPackageName()}; } return null; } }); } @Override public void onStart() { publishBinderService(Context.VOICE_INTERACTION_MANAGER_SERVICE, mServiceStub); publishLocalService(VoiceInteractionManagerInternal.class, new LocalService()); } @Override public void onBootPhase(int phase) { if (PHASE_SYSTEM_SERVICES_READY == phase) { mSoundTriggerInternal = LocalServices.getService(SoundTriggerInternal.class); } else if (phase == PHASE_THIRD_PARTY_APPS_CAN_START) { mServiceStub.systemRunning(isSafeMode()); } } @Override public void onStartUser(int userHandle) { mServiceStub.initForUser(userHandle); } @Override public void onUnlockUser(int userHandle) { mServiceStub.initForUser(userHandle); mServiceStub.switchImplementationIfNeeded(false); } @Override public void onSwitchUser(int userHandle) { mServiceStub.switchUser(userHandle); } class LocalService extends VoiceInteractionManagerInternal { @Override public void startLocalVoiceInteraction(IBinder callingActivity, Bundle options) { if (DEBUG) { Slog.i(TAG, "startLocalVoiceInteraction " + callingActivity); } VoiceInteractionManagerService.this.mServiceStub.startLocalVoiceInteraction( callingActivity, options); } @Override public boolean supportsLocalVoiceInteraction() { return VoiceInteractionManagerService.this.mServiceStub.supportsLocalVoiceInteraction(); } @Override public void stopLocalVoiceInteraction(IBinder callingActivity) { if (DEBUG) { Slog.i(TAG, "stopLocalVoiceInteraction " + callingActivity); } VoiceInteractionManagerService.this.mServiceStub.stopLocalVoiceInteraction( callingActivity); } } // implementation entry point and binder service private final VoiceInteractionManagerServiceStub mServiceStub; class VoiceInteractionManagerServiceStub extends IVoiceInteractionManagerService.Stub { VoiceInteractionManagerServiceImpl mImpl; private boolean mSafeMode; private int mCurUser; private final boolean mEnableService; VoiceInteractionManagerServiceStub() { mEnableService = shouldEnableService(mContext.getResources()); } // TODO: VI Make sure the caller is the current user or profile void startLocalVoiceInteraction(final IBinder token, Bundle options) { if (mImpl == null) return; final long caller = Binder.clearCallingIdentity(); try { mImpl.showSessionLocked(options, VoiceInteractionSession.SHOW_SOURCE_ACTIVITY, new IVoiceInteractionSessionShowCallback.Stub() { @Override public void onFailed() { } @Override public void onShown() { mAmInternal.onLocalVoiceInteractionStarted(token, mImpl.mActiveSession.mSession, mImpl.mActiveSession.mInteractor); } }, token); } finally { Binder.restoreCallingIdentity(caller); } } public void stopLocalVoiceInteraction(IBinder callingActivity) { if (mImpl == null) return; final long caller = Binder.clearCallingIdentity(); try { mImpl.finishLocked(callingActivity, true); } finally { Binder.restoreCallingIdentity(caller); } } public boolean supportsLocalVoiceInteraction() { if (mImpl == null) return false; return mImpl.supportsLocalVoiceInteraction(); } @Override public boolean onTransact(int code, Parcel data, Parcel reply, int flags) throws RemoteException { try { return super.onTransact(code, data, reply, flags); } catch (RuntimeException e) { // The activity manager only throws security exceptions, so let's // log all others. if (!(e instanceof SecurityException)) { Slog.wtf(TAG, "VoiceInteractionManagerService Crash", e); } throw e; } } public void initForUser(int userHandle) { if (DEBUG) Slog.d(TAG, "**************** initForUser user=" + userHandle); String curInteractorStr = Settings.Secure.getStringForUser( mContext.getContentResolver(), Settings.Secure.VOICE_INTERACTION_SERVICE, userHandle); ComponentName curRecognizer = getCurRecognizer(userHandle); VoiceInteractionServiceInfo curInteractorInfo = null; if (DEBUG) Slog.d(TAG, "curInteractorStr=" + curInteractorStr + " curRecognizer=" + curRecognizer); if (curInteractorStr == null && curRecognizer != null && mEnableService) { // If there is no interactor setting, that means we are upgrading // from an older platform version. If the current recognizer is not // set or matches the preferred recognizer, then we want to upgrade // the user to have the default voice interaction service enabled. // Note that we don't do this for low-RAM devices, since we aren't // supporting voice interaction services there. curInteractorInfo = findAvailInteractor(userHandle, curRecognizer.getPackageName()); if (curInteractorInfo != null) { // Looks good! We'll apply this one. To make it happen, we clear the // recognizer so that we don't think we have anything set and will // re-apply the settings. if (DEBUG) Slog.d(TAG, "No set interactor, found avail: " + curInteractorInfo.getServiceInfo().name); curRecognizer = null; } } // If forceInteractorPackage exists, try to apply the interactor from this package if // possible and ignore the regular interactor setting. String forceInteractorPackage = getForceVoiceInteractionServicePackage(mContext.getResources()); if (forceInteractorPackage != null) { curInteractorInfo = findAvailInteractor(userHandle, forceInteractorPackage); if (curInteractorInfo != null) { // We'll apply this one. Clear the recognizer and re-apply the settings. curRecognizer = null; } } // If we are on a svelte device, make sure an interactor is not currently // enabled; if it is, turn it off. if (!mEnableService && curInteractorStr != null) { if (!TextUtils.isEmpty(curInteractorStr)) { if (DEBUG) Slog.d(TAG, "Svelte device; disabling interactor"); setCurInteractor(null, userHandle); curInteractorStr = ""; } } if (curRecognizer != null) { // If we already have at least a recognizer, then we probably want to // leave things as they are... unless something has disappeared. IPackageManager pm = AppGlobals.getPackageManager(); ServiceInfo interactorInfo = null; ServiceInfo recognizerInfo = null; ComponentName curInteractor = !TextUtils.isEmpty(curInteractorStr) ? ComponentName.unflattenFromString(curInteractorStr) : null; try { recognizerInfo = pm.getServiceInfo(curRecognizer, 0, userHandle); if (curInteractor != null) { interactorInfo = pm.getServiceInfo(curInteractor, 0, userHandle); } } catch (RemoteException e) { } // If the apps for the currently set components still exist, then all is okay. if (recognizerInfo != null && (curInteractor == null || interactorInfo != null)) { if (DEBUG) Slog.d(TAG, "Current interactor/recognizer okay, done!"); return; } if (DEBUG) Slog.d(TAG, "Bad recognizer (" + recognizerInfo + ") or interactor (" + interactorInfo + ")"); } // Initializing settings, look for an interactor first (but only on non-svelte). if (curInteractorInfo == null && mEnableService) { curInteractorInfo = findAvailInteractor(userHandle, null); } if (curInteractorInfo != null) { // Eventually it will be an error to not specify this. setCurInteractor(new ComponentName(curInteractorInfo.getServiceInfo().packageName, curInteractorInfo.getServiceInfo().name), userHandle); if (curInteractorInfo.getRecognitionService() != null) { setCurRecognizer( new ComponentName(curInteractorInfo.getServiceInfo().packageName, curInteractorInfo.getRecognitionService()), userHandle); return; } } // No voice interactor, we'll just set up a simple recognizer. curRecognizer = findAvailRecognizer(null, userHandle); if (curRecognizer != null) { if (curInteractorInfo == null) { setCurInteractor(null, userHandle); } setCurRecognizer(curRecognizer, userHandle); } } private boolean shouldEnableService(Resources res) { // VoiceInteractionService should not be enabled on low ram devices unless it has the config flag. return !ActivityManager.isLowRamDeviceStatic() || getForceVoiceInteractionServicePackage(res) != null; } private String getForceVoiceInteractionServicePackage(Resources res) { String interactorPackage = res.getString(com.android.internal.R.string.config_forceVoiceInteractionServicePackage); return TextUtils.isEmpty(interactorPackage) ? null : interactorPackage; } public void systemRunning(boolean safeMode) { mSafeMode = safeMode; mPackageMonitor.register(mContext, BackgroundThread.getHandler().getLooper(), UserHandle.ALL, true); new SettingsObserver(UiThread.getHandler()); synchronized (this) { mCurUser = ActivityManager.getCurrentUser(); switchImplementationIfNeededLocked(false); } } public void switchUser(int userHandle) { synchronized (this) { mCurUser = userHandle; switchImplementationIfNeededLocked(false); } } void switchImplementationIfNeeded(boolean force) { synchronized (this) { switchImplementationIfNeededLocked(force); } } void switchImplementationIfNeededLocked(boolean force) { if (!mSafeMode) { String curService = Settings.Secure.getStringForUser( mResolver, Settings.Secure.VOICE_INTERACTION_SERVICE, mCurUser); ComponentName serviceComponent = null; ServiceInfo serviceInfo = null; if (curService != null && !curService.isEmpty()) { try { serviceComponent = ComponentName.unflattenFromString(curService); serviceInfo = AppGlobals.getPackageManager() .getServiceInfo(serviceComponent, 0, mCurUser); } catch (RuntimeException | RemoteException e) { Slog.wtf(TAG, "Bad voice interaction service name " + curService, e); serviceComponent = null; serviceInfo = null; } } if (force || mImpl == null || mImpl.mUser != mCurUser || !mImpl.mComponent.equals(serviceComponent)) { unloadAllKeyphraseModels(); if (mImpl != null) { mImpl.shutdownLocked(); } if (serviceComponent != null && serviceInfo != null) { mImpl = new VoiceInteractionManagerServiceImpl(mContext, UiThread.getHandler(), this, mCurUser, serviceComponent); mImpl.startLocked(); } else { mImpl = null; } } } } VoiceInteractionServiceInfo findAvailInteractor(int userHandle, String packageName) { List available = mContext.getPackageManager().queryIntentServicesAsUser( new Intent(VoiceInteractionService.SERVICE_INTERFACE), PackageManager.MATCH_DIRECT_BOOT_AWARE | PackageManager.MATCH_DIRECT_BOOT_UNAWARE | PackageManager.MATCH_DEBUG_TRIAGED_MISSING, userHandle); int numAvailable = available.size(); if (numAvailable == 0) { Slog.w(TAG, "no available voice interaction services found for user " + userHandle); return null; } else { // Find first system package. We never want to allow third party services to // be automatically selected, because those require approval of the user. VoiceInteractionServiceInfo foundInfo = null; for (int i=0; i 1) { Slog.w(TAG, "more than one voice recognition service found, picking first"); } ServiceInfo serviceInfo = available.get(0).serviceInfo; return new ComponentName(serviceInfo.packageName, serviceInfo.name); } } ComponentName getCurRecognizer(int userHandle) { String curRecognizer = Settings.Secure.getStringForUser( mContext.getContentResolver(), Settings.Secure.VOICE_RECOGNITION_SERVICE, userHandle); if (TextUtils.isEmpty(curRecognizer)) { return null; } if (DEBUG) Slog.d(TAG, "getCurRecognizer curRecognizer=" + curRecognizer + " user=" + userHandle); return ComponentName.unflattenFromString(curRecognizer); } void setCurRecognizer(ComponentName comp, int userHandle) { Settings.Secure.putStringForUser(mContext.getContentResolver(), Settings.Secure.VOICE_RECOGNITION_SERVICE, comp != null ? comp.flattenToShortString() : "", userHandle); if (DEBUG) Slog.d(TAG, "setCurRecognizer comp=" + comp + " user=" + userHandle); } void resetCurAssistant(int userHandle) { Settings.Secure.putStringForUser(mContext.getContentResolver(), Settings.Secure.ASSISTANT, null, userHandle); } @Override public void showSession(IVoiceInteractionService service, Bundle args, int flags) { synchronized (this) { if (mImpl == null || mImpl.mService == null || service.asBinder() != mImpl.mService.asBinder()) { throw new SecurityException( "Caller is not the current voice interaction service"); } final long caller = Binder.clearCallingIdentity(); try { mImpl.showSessionLocked(args, flags, null, null); } finally { Binder.restoreCallingIdentity(caller); } } } @Override public boolean deliverNewSession(IBinder token, IVoiceInteractionSession session, IVoiceInteractor interactor) { synchronized (this) { if (mImpl == null) { throw new SecurityException( "deliverNewSession without running voice interaction service"); } final long caller = Binder.clearCallingIdentity(); try { return mImpl.deliverNewSessionLocked(token, session, interactor); } finally { Binder.restoreCallingIdentity(caller); } } } @Override public boolean showSessionFromSession(IBinder token, Bundle sessionArgs, int flags) { synchronized (this) { if (mImpl == null) { Slog.w(TAG, "showSessionFromSession without running voice interaction service"); return false; } final long caller = Binder.clearCallingIdentity(); try { return mImpl.showSessionLocked(sessionArgs, flags, null, null); } finally { Binder.restoreCallingIdentity(caller); } } } @Override public boolean hideSessionFromSession(IBinder token) { synchronized (this) { if (mImpl == null) { Slog.w(TAG, "hideSessionFromSession without running voice interaction service"); return false; } final long caller = Binder.clearCallingIdentity(); try { return mImpl.hideSessionLocked(); } finally { Binder.restoreCallingIdentity(caller); } } } @Override public int startVoiceActivity(IBinder token, Intent intent, String resolvedType) { synchronized (this) { if (mImpl == null) { Slog.w(TAG, "startVoiceActivity without running voice interaction service"); return ActivityManager.START_CANCELED; } final int callingPid = Binder.getCallingPid(); final int callingUid = Binder.getCallingUid(); final long caller = Binder.clearCallingIdentity(); try { return mImpl.startVoiceActivityLocked(callingPid, callingUid, token, intent, resolvedType); } finally { Binder.restoreCallingIdentity(caller); } } } @Override public void setKeepAwake(IBinder token, boolean keepAwake) { synchronized (this) { if (mImpl == null) { Slog.w(TAG, "setKeepAwake without running voice interaction service"); return; } final long caller = Binder.clearCallingIdentity(); try { mImpl.setKeepAwakeLocked(token, keepAwake); } finally { Binder.restoreCallingIdentity(caller); } } } @Override public void closeSystemDialogs(IBinder token) { synchronized (this) { if (mImpl == null) { Slog.w(TAG, "closeSystemDialogs without running voice interaction service"); return; } final long caller = Binder.clearCallingIdentity(); try { mImpl.closeSystemDialogsLocked(token); } finally { Binder.restoreCallingIdentity(caller); } } } @Override public void finish(IBinder token) { synchronized (this) { if (mImpl == null) { Slog.w(TAG, "finish without running voice interaction service"); return; } final long caller = Binder.clearCallingIdentity(); try { mImpl.finishLocked(token, false); } finally { Binder.restoreCallingIdentity(caller); } } } @Override public void setDisabledShowContext(int flags) { synchronized (this) { if (mImpl == null) { Slog.w(TAG, "setDisabledShowContext without running voice interaction service"); return; } final int callingUid = Binder.getCallingUid(); final long caller = Binder.clearCallingIdentity(); try { mImpl.setDisabledShowContextLocked(callingUid, flags); } finally { Binder.restoreCallingIdentity(caller); } } } @Override public int getDisabledShowContext() { synchronized (this) { if (mImpl == null) { Slog.w(TAG, "getDisabledShowContext without running voice interaction service"); return 0; } final int callingUid = Binder.getCallingUid(); final long caller = Binder.clearCallingIdentity(); try { return mImpl.getDisabledShowContextLocked(callingUid); } finally { Binder.restoreCallingIdentity(caller); } } } @Override public int getUserDisabledShowContext() { synchronized (this) { if (mImpl == null) { Slog.w(TAG, "getUserDisabledShowContext without running voice interaction service"); return 0; } final int callingUid = Binder.getCallingUid(); final long caller = Binder.clearCallingIdentity(); try { return mImpl.getUserDisabledShowContextLocked(callingUid); } finally { Binder.restoreCallingIdentity(caller); } } } //----------------- Model management APIs --------------------------------// @Override public KeyphraseSoundModel getKeyphraseSoundModel(int keyphraseId, String bcp47Locale) { enforceCallingPermission(Manifest.permission.MANAGE_VOICE_KEYPHRASES); if (bcp47Locale == null) { throw new IllegalArgumentException("Illegal argument(s) in getKeyphraseSoundModel"); } final int callingUid = UserHandle.getCallingUserId(); final long caller = Binder.clearCallingIdentity(); try { return mDbHelper.getKeyphraseSoundModel(keyphraseId, callingUid, bcp47Locale); } finally { Binder.restoreCallingIdentity(caller); } } @Override public int updateKeyphraseSoundModel(KeyphraseSoundModel model) { enforceCallingPermission(Manifest.permission.MANAGE_VOICE_KEYPHRASES); if (model == null) { throw new IllegalArgumentException("Model must not be null"); } final long caller = Binder.clearCallingIdentity(); try { if (mDbHelper.updateKeyphraseSoundModel(model)) { synchronized (this) { // Notify the voice interaction service of a change in sound models. if (mImpl != null && mImpl.mService != null) { mImpl.notifySoundModelsChangedLocked(); } } return SoundTriggerInternal.STATUS_OK; } else { return SoundTriggerInternal.STATUS_ERROR; } } finally { Binder.restoreCallingIdentity(caller); } } @Override public int deleteKeyphraseSoundModel(int keyphraseId, String bcp47Locale) { enforceCallingPermission(Manifest.permission.MANAGE_VOICE_KEYPHRASES); if (bcp47Locale == null) { throw new IllegalArgumentException( "Illegal argument(s) in deleteKeyphraseSoundModel"); } final int callingUid = UserHandle.getCallingUserId(); final long caller = Binder.clearCallingIdentity(); boolean deleted = false; try { int unloadStatus = mSoundTriggerInternal.unloadKeyphraseModel(keyphraseId); if (unloadStatus != SoundTriggerInternal.STATUS_OK) { Slog.w(TAG, "Unable to unload keyphrase sound model:" + unloadStatus); } deleted = mDbHelper.deleteKeyphraseSoundModel(keyphraseId, callingUid, bcp47Locale); return deleted ? SoundTriggerInternal.STATUS_OK : SoundTriggerInternal.STATUS_ERROR; } finally { if (deleted) { synchronized (this) { // Notify the voice interaction service of a change in sound models. if (mImpl != null && mImpl.mService != null) { mImpl.notifySoundModelsChangedLocked(); } mLoadedKeyphraseIds.remove(keyphraseId); } } Binder.restoreCallingIdentity(caller); } } //----------------- SoundTrigger APIs --------------------------------// @Override public boolean isEnrolledForKeyphrase(IVoiceInteractionService service, int keyphraseId, String bcp47Locale) { synchronized (this) { if (mImpl == null || mImpl.mService == null || service.asBinder() != mImpl.mService.asBinder()) { throw new SecurityException( "Caller is not the current voice interaction service"); } } if (bcp47Locale == null) { throw new IllegalArgumentException("Illegal argument(s) in isEnrolledForKeyphrase"); } final int callingUid = UserHandle.getCallingUserId(); final long caller = Binder.clearCallingIdentity(); try { KeyphraseSoundModel model = mDbHelper.getKeyphraseSoundModel(keyphraseId, callingUid, bcp47Locale); return model != null; } finally { Binder.restoreCallingIdentity(caller); } } @Override public ModuleProperties getDspModuleProperties(IVoiceInteractionService service) { // Allow the call if this is the current voice interaction service. synchronized (this) { if (mImpl == null || mImpl.mService == null || service == null || service.asBinder() != mImpl.mService.asBinder()) { throw new SecurityException( "Caller is not the current voice interaction service"); } final long caller = Binder.clearCallingIdentity(); try { return mSoundTriggerInternal.getModuleProperties(); } finally { Binder.restoreCallingIdentity(caller); } } } @Override public int startRecognition(IVoiceInteractionService service, int keyphraseId, String bcp47Locale, IRecognitionStatusCallback callback, RecognitionConfig recognitionConfig) { // Allow the call if this is the current voice interaction service. synchronized (this) { if (mImpl == null || mImpl.mService == null || service == null || service.asBinder() != mImpl.mService.asBinder()) { throw new SecurityException( "Caller is not the current voice interaction service"); } if (callback == null || recognitionConfig == null || bcp47Locale == null) { throw new IllegalArgumentException("Illegal argument(s) in startRecognition"); } } int callingUid = UserHandle.getCallingUserId(); final long caller = Binder.clearCallingIdentity(); try { KeyphraseSoundModel soundModel = mDbHelper.getKeyphraseSoundModel(keyphraseId, callingUid, bcp47Locale); if (soundModel == null || soundModel.uuid == null || soundModel.keyphrases == null) { Slog.w(TAG, "No matching sound model found in startRecognition"); return SoundTriggerInternal.STATUS_ERROR; } else { // Regardless of the status of the start recognition, we need to make sure // that we unload this model if needed later. synchronized (this) { mLoadedKeyphraseIds.add(keyphraseId); } return mSoundTriggerInternal.startRecognition( keyphraseId, soundModel, callback, recognitionConfig); } } finally { Binder.restoreCallingIdentity(caller); } } @Override public int stopRecognition(IVoiceInteractionService service, int keyphraseId, IRecognitionStatusCallback callback) { // Allow the call if this is the current voice interaction service. synchronized (this) { if (mImpl == null || mImpl.mService == null || service == null || service.asBinder() != mImpl.mService.asBinder()) { throw new SecurityException( "Caller is not the current voice interaction service"); } } final long caller = Binder.clearCallingIdentity(); try { return mSoundTriggerInternal.stopRecognition(keyphraseId, callback); } finally { Binder.restoreCallingIdentity(caller); } } private synchronized void unloadAllKeyphraseModels() { for (int keyphraseId : mLoadedKeyphraseIds) { final long caller = Binder.clearCallingIdentity(); try { int status = mSoundTriggerInternal.unloadKeyphraseModel(keyphraseId); if (status != SoundTriggerInternal.STATUS_OK) { Slog.w(TAG, "Failed to unload keyphrase " + keyphraseId + ":" + status); } } finally { Binder.restoreCallingIdentity(caller); } } mLoadedKeyphraseIds.clear(); } @Override public ComponentName getActiveServiceComponentName() { enforceCallingPermission(Manifest.permission.ACCESS_VOICE_INTERACTION_SERVICE); synchronized (this) { return mImpl != null ? mImpl.mComponent : null; } } @Override public boolean showSessionForActiveService(Bundle args, int sourceFlags, IVoiceInteractionSessionShowCallback showCallback, IBinder activityToken) { enforceCallingPermission(Manifest.permission.ACCESS_VOICE_INTERACTION_SERVICE); synchronized (this) { if (mImpl == null) { Slog.w(TAG, "showSessionForActiveService without running voice interaction" + "service"); return false; } final long caller = Binder.clearCallingIdentity(); try { return mImpl.showSessionLocked(args, sourceFlags | VoiceInteractionSession.SHOW_WITH_ASSIST | VoiceInteractionSession.SHOW_WITH_SCREENSHOT, showCallback, activityToken); } finally { Binder.restoreCallingIdentity(caller); } } } @Override public void hideCurrentSession() throws RemoteException { enforceCallingPermission(Manifest.permission.ACCESS_VOICE_INTERACTION_SERVICE); synchronized (this) { if (mImpl == null) { return; } final long caller = Binder.clearCallingIdentity(); try { if (mImpl.mActiveSession != null && mImpl.mActiveSession.mSession != null) { try { mImpl.mActiveSession.mSession.closeSystemDialogs(); } catch (RemoteException e) { Log.w(TAG, "Failed to call closeSystemDialogs", e); } } } finally { Binder.restoreCallingIdentity(caller); } } } @Override public void launchVoiceAssistFromKeyguard() { enforceCallingPermission(Manifest.permission.ACCESS_VOICE_INTERACTION_SERVICE); synchronized (this) { if (mImpl == null) { Slog.w(TAG, "launchVoiceAssistFromKeyguard without running voice interaction" + "service"); return; } final long caller = Binder.clearCallingIdentity(); try { mImpl.launchVoiceAssistFromKeyguard(); } finally { Binder.restoreCallingIdentity(caller); } } } @Override public boolean isSessionRunning() { enforceCallingPermission(Manifest.permission.ACCESS_VOICE_INTERACTION_SERVICE); synchronized (this) { return mImpl != null && mImpl.mActiveSession != null; } } @Override public boolean activeServiceSupportsAssist() { enforceCallingPermission(Manifest.permission.ACCESS_VOICE_INTERACTION_SERVICE); synchronized (this) { return mImpl != null && mImpl.mInfo != null && mImpl.mInfo.getSupportsAssist(); } } @Override public boolean activeServiceSupportsLaunchFromKeyguard() throws RemoteException { enforceCallingPermission(Manifest.permission.ACCESS_VOICE_INTERACTION_SERVICE); synchronized (this) { return mImpl != null && mImpl.mInfo != null && mImpl.mInfo.getSupportsLaunchFromKeyguard(); } } @Override public void onLockscreenShown() { enforceCallingPermission(Manifest.permission.ACCESS_VOICE_INTERACTION_SERVICE); synchronized (this) { if (mImpl == null) { return; } final long caller = Binder.clearCallingIdentity(); try { if (mImpl.mActiveSession != null && mImpl.mActiveSession.mSession != null) { try { mImpl.mActiveSession.mSession.onLockscreenShown(); } catch (RemoteException e) { Log.w(TAG, "Failed to call onLockscreenShown", e); } } } finally { Binder.restoreCallingIdentity(caller); } } } @Override public void dump(FileDescriptor fd, PrintWriter pw, String[] args) { if (mContext.checkCallingOrSelfPermission(Manifest.permission.DUMP) != PackageManager.PERMISSION_GRANTED) { pw.println("Permission Denial: can't dump PowerManager from from pid=" + Binder.getCallingPid() + ", uid=" + Binder.getCallingUid()); return; } synchronized (this) { pw.println("VOICE INTERACTION MANAGER (dumpsys voiceinteraction)"); pw.println(" mEnableService: " + mEnableService); if (mImpl == null) { pw.println(" (No active implementation)"); return; } mImpl.dumpLocked(fd, pw, args); } mSoundTriggerInternal.dump(fd, pw, args); } private void enforceCallingPermission(String permission) { if (mContext.checkCallingOrSelfPermission(permission) != PackageManager.PERMISSION_GRANTED) { throw new SecurityException("Caller does not hold the permission " + permission); } } class SettingsObserver extends ContentObserver { SettingsObserver(Handler handler) { super(handler); ContentResolver resolver = mContext.getContentResolver(); resolver.registerContentObserver(Settings.Secure.getUriFor( Settings.Secure.VOICE_INTERACTION_SERVICE), false, this, UserHandle.USER_ALL); } @Override public void onChange(boolean selfChange) { synchronized (VoiceInteractionManagerServiceStub.this) { switchImplementationIfNeededLocked(false); } } } PackageMonitor mPackageMonitor = new PackageMonitor() { @Override public boolean onHandleForceStop(Intent intent, String[] packages, int uid, boolean doit) { if (DEBUG) Slog.d(TAG, "onHandleForceStop uid=" + uid + " doit=" + doit); int userHandle = UserHandle.getUserId(uid); ComponentName curInteractor = getCurInteractor(userHandle); ComponentName curRecognizer = getCurRecognizer(userHandle); boolean hit = false; for (String pkg : packages) { if (curInteractor != null && pkg.equals(curInteractor.getPackageName())) { hit = true; break; } else if (curRecognizer != null && pkg.equals(curRecognizer.getPackageName())) { hit = true; break; } } if (hit && doit) { // The user is force stopping our current interactor/recognizer. // Clear the current settings and restore default state. synchronized (VoiceInteractionManagerServiceStub.this) { unloadAllKeyphraseModels(); if (mImpl != null) { mImpl.shutdownLocked(); mImpl = null; } setCurInteractor(null, userHandle); setCurRecognizer(null, userHandle); resetCurAssistant(userHandle); initForUser(userHandle); switchImplementationIfNeededLocked(true); } } return hit; } @Override public void onHandleUserStop(Intent intent, int userHandle) { } @Override public void onSomePackagesChanged() { int userHandle = getChangingUserId(); if (DEBUG) Slog.d(TAG, "onSomePackagesChanged user=" + userHandle); synchronized (VoiceInteractionManagerServiceStub.this) { ComponentName curInteractor = getCurInteractor(userHandle); ComponentName curRecognizer = getCurRecognizer(userHandle); if (curRecognizer == null) { // Could a new recognizer appear when we don't have one pre-installed? if (anyPackagesAppearing()) { curRecognizer = findAvailRecognizer(null, userHandle); if (curRecognizer != null) { setCurRecognizer(curRecognizer, userHandle); } } return; } if (curInteractor != null) { int change = isPackageDisappearing(curInteractor.getPackageName()); if (change == PACKAGE_PERMANENT_CHANGE) { // The currently set interactor is permanently gone; fall back to // the default config. setCurInteractor(null, userHandle); setCurRecognizer(null, userHandle); initForUser(userHandle); return; } change = isPackageAppearing(curInteractor.getPackageName()); if (change != PACKAGE_UNCHANGED) { // If current interactor is now appearing, for any reason, then // restart our connection with it. if (mImpl != null && curInteractor.getPackageName().equals( mImpl.mComponent.getPackageName())) { switchImplementationIfNeededLocked(true); } } return; } // There is no interactor, so just deal with a simple recognizer. int change = isPackageDisappearing(curRecognizer.getPackageName()); if (change == PACKAGE_PERMANENT_CHANGE || change == PACKAGE_TEMPORARY_CHANGE) { setCurRecognizer(findAvailRecognizer(null, userHandle), userHandle); } else if (isPackageModified(curRecognizer.getPackageName())) { setCurRecognizer(findAvailRecognizer(curRecognizer.getPackageName(), userHandle), userHandle); } } } }; } }