Merge "[Call Screening]Binding to call screening apps" (30075287) · Commits · e / os / android_packages_services_Telecomm

src/com/android/server/telecom/CallsManager.java

+4 −4

Original line number	Diff line number	Diff line
		@@ -73,7 +73,7 @@ import com.android.server.telecom.callfiltering.AsyncBlockCheckFilter;
		import com.android.server.telecom.callfiltering.BlockCheckerAdapter;
		import com.android.server.telecom.callfiltering.CallFilterResultCallback;
		import com.android.server.telecom.callfiltering.CallFilteringResult;
		import com.android.server.telecom.callfiltering.CallScreeningServiceFilter;
		import com.android.server.telecom.callfiltering.CallScreeningServiceController;
		import com.android.server.telecom.callfiltering.DirectToVoicemailCallFilter;
		import com.android.server.telecom.callfiltering.IncomingCallFilter;
		import com.android.server.telecom.components.ErrorDialogActivity;
		@@ -568,9 +568,9 @@ public class CallsManager extends Call.ListenerBase
		filters.add(new DirectToVoicemailCallFilter(mCallerInfoLookupHelper));
		filters.add(new AsyncBlockCheckFilter(mContext, new BlockCheckerAdapter(),
		mCallerInfoLookupHelper, null));
		filters.add(new CallScreeningServiceFilter(mContext, this, mPhoneAccountRegistrar,
		mDefaultDialerCache, new ParcelableCallUtils.Converter(), mLock,
		new TelecomServiceImpl.SettingsSecureAdapterImpl()));
		filters.add(new CallScreeningServiceController(mContext, this, mPhoneAccountRegistrar,
		new ParcelableCallUtils.Converter(), mLock,
		new TelecomServiceImpl.SettingsSecureAdapterImpl(), mCallerInfoLookupHelper));
		new IncomingCallFilter(mContext, this, incomingCall, mLock,
		mTimeoutsAdapter, filters).performFiltering();
		}

src/com/android/server/telecom/LogUtils.java

+2 −0

Original line number	Diff line number	Diff line
		@@ -108,6 +108,8 @@ public class LogUtils {
		public static final String BIND_SCREENING = "BIND_SCREENING";
		public static final String SCREENING_BOUND = "SCREENING_BOUND";
		public static final String SCREENING_SENT = "SCREENING_SENT";
		public static final String CONTROLLER_SCREENING_COMPLETED =
		"CONTROLLER_SCREENING_COMPLETED";
		public static final String SCREENING_COMPLETED = "SCREENING_COMPLETED";
		public static final String BLOCK_CHECK_INITIATED = "BLOCK_CHECK_INITIATED";
		public static final String BLOCK_CHECK_FINISHED = "BLOCK_CHECK_FINISHED";

src/com/android/server/telecom/callfiltering/CallScreeningServiceController.java

0 → 100644

+264 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2018 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.telecom.callfiltering;

		import android.content.ComponentName;
		import android.content.Context;
		import android.net.Uri;
		import android.os.Handler;
		import android.os.Looper;
		import android.os.PersistableBundle;
		import android.os.UserHandle;
		import android.provider.CallLog;
		import android.provider.Settings;
		import android.telecom.Log;
		import android.telecom.Logging.Runnable;
		import android.telecom.TelecomManager;
		import android.telephony.CarrierConfigManager;
		import android.text.TextUtils;

		import com.android.internal.telephony.CallerInfo;
		import com.android.server.telecom.Call;
		import com.android.server.telecom.CallerInfoLookupHelper;
		import com.android.server.telecom.CallsManager;
		import com.android.server.telecom.LogUtils;
		import com.android.server.telecom.ParcelableCallUtils;
		import com.android.server.telecom.PhoneAccountRegistrar;
		import com.android.server.telecom.TelecomServiceImpl;
		import com.android.server.telecom.TelecomSystem;

		/**
		* This class supports binding to the various {@link android.telecom.CallScreeningService}:
		* carrier, default dialer and user chosen. Carrier's CallScreeningService implementation will be
		* bound first, and then default dialer's and user chosen's. If Carrier's CallScreeningService
		* blocks a call, no further CallScreeningService after it will be bound.
		*/
		public class CallScreeningServiceController implements IncomingCallFilter.CallFilter,
		CallScreeningServiceFilter.CallScreeningFilterResultCallback {

		private final Context mContext;
		private final CallsManager mCallsManager;
		private final PhoneAccountRegistrar mPhoneAccountRegistrar;
		private final ParcelableCallUtils.Converter mParcelableCallUtilsConverter;
		private final TelecomSystem.SyncRoot mTelecomLock;
		private final TelecomServiceImpl.SettingsSecureAdapter mSettingsSecureAdapter;
		private final CallerInfoLookupHelper mCallerInfoLookupHelper;

		private final int CARRIER_CALL_FILTERING_TIMED_OUT = 2000; // 2 seconds
		private final int CALL_FILTERING_TIMED_OUT = 4500; // 4.5 seconds

		private final Handler mHandler = new Handler(Looper.getMainLooper());

		private Call mCall;
		private CallFilterResultCallback mCallback;

		private CallFilteringResult mResult = new CallFilteringResult(
		true, // shouldAllowCall
		false, // shouldReject
		true, // shouldAddToCallLog
		true // shouldShowNotification
		);

		private boolean mIsFinished;
		private boolean mIsCarrierFinished;
		private boolean mIsDefaultDialerFinished;
		private boolean mIsUserChosenFinished;

		public CallScreeningServiceController(
		Context context,
		CallsManager callsManager,
		PhoneAccountRegistrar phoneAccountRegistrar,
		ParcelableCallUtils.Converter parcelableCallUtilsConverter,
		TelecomSystem.SyncRoot lock,
		TelecomServiceImpl.SettingsSecureAdapter settingsSecureAdapter,
		CallerInfoLookupHelper callerInfoLookupHelper) {
		mContext = context;
		mCallsManager = callsManager;
		mPhoneAccountRegistrar = phoneAccountRegistrar;
		mParcelableCallUtilsConverter = parcelableCallUtilsConverter;
		mTelecomLock = lock;
		mSettingsSecureAdapter = settingsSecureAdapter;
		mCallerInfoLookupHelper = callerInfoLookupHelper;
		}

		@Override
		public void startFilterLookup(Call call, CallFilterResultCallback callBack) {
		mCall = call;
		mCallback = callBack;
		mIsFinished = false;
		mIsCarrierFinished = false;
		mIsDefaultDialerFinished = false;
		mIsUserChosenFinished = false;

		bindCarrierService();

		// Call screening filtering timed out
		mHandler.postDelayed(new Runnable("ICF.pFTO", mTelecomLock) {
		@Override
		public void loggedRun() {
		if (!mIsFinished) {
		Log.i(CallScreeningServiceController.this, "Call screening has timed out.");
		finishCallScreening();
		}
		}
		}.prepare(), CALL_FILTERING_TIMED_OUT);
		}

		@Override
		public void onCallScreeningFilterComplete(Call call, CallFilteringResult result, String
		packageName) {
		synchronized (mTelecomLock) {
		mResult = result.combine(mResult);
		if (!TextUtils.isEmpty(packageName) && packageName.equals(getCarrierPackageName())) {
		mIsCarrierFinished = true;
		if (result.mCallBlockReason == CallLog.Calls.BLOCK_REASON_CALL_SCREENING_SERVICE) {
		finishCallScreening();
		} else {
		checkContactExistsAndBindService();
		}
		} else if (!TextUtils.isEmpty(packageName) &&
		packageName.equals(getDefaultDialerPackageName())) {
		mIsDefaultDialerFinished = true;
		if (result.mCallBlockReason == CallLog.Calls.BLOCK_REASON_CALL_SCREENING_SERVICE \|\|
		mIsUserChosenFinished) {
		finishCallScreening();
		}
		} else if (!TextUtils.isEmpty(packageName) &&
		packageName.equals(getUserChosenPackageName())) {
		mIsUserChosenFinished = true;
		if (mIsDefaultDialerFinished) {
		finishCallScreening();
		}
		}
		}
		}

		private void bindCarrierService() {
		String carrierPackageName = getCarrierPackageName();
		if (TextUtils.isEmpty(carrierPackageName)) {
		mIsCarrierFinished = true;
		bindDefaultDialerAndUserChosenService();
		} else {
		createCallScreeningServiceFilter().startCallScreeningFilter(mCall, this,
		carrierPackageName);
		}

		// Carrier filtering timed out
		mHandler.postDelayed(new Runnable("ICF.pFTO", mTelecomLock) {
		@Override
		public void loggedRun() {
		if (!mIsCarrierFinished) {
		mIsCarrierFinished = true;
		checkContactExistsAndBindService();
		}
		}
		}.prepare(), CARRIER_CALL_FILTERING_TIMED_OUT);
		}

		private void bindDefaultDialerAndUserChosenService() {
		if (mIsCarrierFinished) {
		String dialerPackageName = getDefaultDialerPackageName();
		if (TextUtils.isEmpty(dialerPackageName)) {
		mIsDefaultDialerFinished = true;
		} else {
		createCallScreeningServiceFilter().startCallScreeningFilter(mCall,
		CallScreeningServiceController.this, dialerPackageName);
		}

		String userChosenPackageName = getUserChosenPackageName();
		if (TextUtils.isEmpty(userChosenPackageName)) {
		mIsUserChosenFinished = true;
		} else {
		createCallScreeningServiceFilter().startCallScreeningFilter(mCall,
		CallScreeningServiceController.this, userChosenPackageName);
		}

		if (mIsDefaultDialerFinished && mIsUserChosenFinished) {
		finishCallScreening();
		}
		}
		}

		private CallScreeningServiceFilter createCallScreeningServiceFilter() {
		return new CallScreeningServiceFilter(
		mContext,
		mCallsManager,
		mPhoneAccountRegistrar,
		mParcelableCallUtilsConverter,
		mTelecomLock,
		mSettingsSecureAdapter);
		}

		private void checkContactExistsAndBindService() {
		mCallerInfoLookupHelper.startLookup(mCall.getHandle(),
		new CallerInfoLookupHelper.OnQueryCompleteListener() {
		@Override
		public void onCallerInfoQueryComplete(Uri handle, CallerInfo info) {
		boolean contactExists = info != null && info.contactExists;
		Log.i(CallScreeningServiceController.this, "Contact exists: " +
		contactExists);
		if (!contactExists) {
		bindDefaultDialerAndUserChosenService();
		} else {
		finishCallScreening();
		}
		}

		@Override
		public void onContactPhotoQueryComplete(Uri handle, CallerInfo
		info) {
		// ignore
		}
		});
		}

		private void finishCallScreening() {
		Log.addEvent(mCall, LogUtils.Events.CONTROLLER_SCREENING_COMPLETED, mResult);
		mCallback.onCallFilteringComplete(mCall, mResult);
		mIsFinished = true;
		}

		private String getCarrierPackageName() {
		ComponentName componentName = null;
		CarrierConfigManager configManager = (CarrierConfigManager) mContext.getSystemService
		(Context.CARRIER_CONFIG_SERVICE);
		PersistableBundle configBundle = configManager.getConfig();
		if (configBundle != null) {
		componentName = ComponentName.unflattenFromString(configBundle.getString
		(CarrierConfigManager.KEY_CARRIER_CALL_SCREENING_APP_STRING));
		}

		return componentName != null ? componentName.getPackageName() : null;
		}

		private String getDefaultDialerPackageName() {
		return TelecomManager.from(mContext).getDefaultDialerPackage();
		}

		private String getUserChosenPackageName() {
		ComponentName componentName = null;
		String defaultCallScreeningApplication = mSettingsSecureAdapter.getStringForUser(mContext
		.getContentResolver(), Settings.Secure.CALL_SCREENING_DEFAULT_COMPONENT,
		UserHandle.USER_CURRENT);

		if (!TextUtils.isEmpty(defaultCallScreeningApplication)) {
		componentName = ComponentName.unflattenFromString(defaultCallScreeningApplication);
		}

		return componentName != null ? componentName.getPackageName() : null;
		}
		}

src/com/android/server/telecom/callfiltering/CallScreeningServiceFilter.java

+38 −36

Original line number	Diff line number	Diff line
		@@ -39,11 +39,9 @@ import com.android.internal.telecom.ICallScreeningAdapter;
		import com.android.internal.telecom.ICallScreeningService;
		import com.android.server.telecom.Call;
		import com.android.server.telecom.CallsManager;
		import com.android.server.telecom.DefaultDialerCache;
		import com.android.server.telecom.LogUtils;
		import com.android.server.telecom.ParcelableCallUtils;
		import com.android.server.telecom.PhoneAccountRegistrar;
		import com.android.server.telecom.TelecomServiceImpl;
		import com.android.server.telecom.TelecomServiceImpl.SettingsSecureAdapter;
		import com.android.server.telecom.TelecomSystem;

		@@ -53,7 +51,13 @@ import java.util.List;
		* Binds to {@link ICallScreeningService} to allow call blocking. A single instance of this class
		* handles a single call.
		*/
		public class CallScreeningServiceFilter implements IncomingCallFilter.CallFilter {
		public class CallScreeningServiceFilter {

		public interface CallScreeningFilterResultCallback {
		void onCallScreeningFilterComplete(Call call, CallFilteringResult result, String
		packageName);
		}

		private class CallScreeningServiceConnection implements ServiceConnection {
		@Override
		public void onServiceConnected(ComponentName componentName, IBinder service) {
		@@ -150,17 +154,17 @@ public class CallScreeningServiceFilter implements IncomingCallFilter.CallFilter
		private final Context mContext;
		private final PhoneAccountRegistrar mPhoneAccountRegistrar;
		private final CallsManager mCallsManager;
		private final DefaultDialerCache mDefaultDialerCache;
		private final ParcelableCallUtils.Converter mParcelableCallUtilsConverter;
		private final TelecomSystem.SyncRoot mTelecomLock;
		private final SettingsSecureAdapter mSettingsSecureAdapter;

		private Call mCall;
		private CallFilterResultCallback mCallback;
		private CallScreeningFilterResultCallback mCallback;
		private ICallScreeningService mService;
		private ServiceConnection mConnection;

		private String mPackageName;
		private boolean mHasFinished = false;

		private CallFilteringResult mResult = new CallFilteringResult(
		true, // shouldAllowCall
		false, //shouldReject
		@@ -172,28 +176,28 @@ public class CallScreeningServiceFilter implements IncomingCallFilter.CallFilter
		Context context,
		CallsManager callsManager,
		PhoneAccountRegistrar phoneAccountRegistrar,
		DefaultDialerCache defaultDialerCache,
		ParcelableCallUtils.Converter parcelableCallUtilsConverter,
		TelecomSystem.SyncRoot lock,
		SettingsSecureAdapter settingsSecureAdapter) {
		mContext = context;
		mPhoneAccountRegistrar = phoneAccountRegistrar;
		mCallsManager = callsManager;
		mDefaultDialerCache = defaultDialerCache;
		mParcelableCallUtilsConverter = parcelableCallUtilsConverter;
		mTelecomLock = lock;
		mSettingsSecureAdapter = settingsSecureAdapter;
		}

		@Override
		public void startFilterLookup(Call call, CallFilterResultCallback callback) {
		public void startCallScreeningFilter(Call call,
		CallScreeningFilterResultCallback callback,
		String packageName) {
		if (mHasFinished) {
		Log.w(this, "Attempting to reuse CallScreeningServiceFilter. Ignoring.");
		return;
		}
		Log.addEvent(call, LogUtils.Events.SCREENING_SENT);
		Log.addEvent(call, LogUtils.Events.SCREENING_SENT, packageName);
		mCall = call;
		mCallback = callback;
		mPackageName = packageName;
		if (!bindService()) {
		Log.i(this, "Could not bind to call screening service");
		finishCallScreening();
		@@ -203,7 +207,7 @@ public class CallScreeningServiceFilter implements IncomingCallFilter.CallFilter
		private void finishCallScreening() {
		if (!mHasFinished) {
		Log.addEvent(mCall, LogUtils.Events.SCREENING_COMPLETED, mResult);
		mCallback.onCallFilteringComplete(mCall, mResult);
		mCallback.onCallScreeningFilterComplete(mCall, mResult, mPackageName);

		if (mConnection != null) {
		// We still need to call unbind even if the service disconnected.
		@@ -216,25 +220,23 @@ public class CallScreeningServiceFilter implements IncomingCallFilter.CallFilter
		}

		private boolean bindService() {
		String dialerPackage = mDefaultDialerCache
		.getDefaultDialerApplication(UserHandle.USER_CURRENT);
		if (TextUtils.isEmpty(dialerPackage)) {
		Log.i(this, "Default dialer is empty. Not performing call screening.");
		if (TextUtils.isEmpty(mPackageName)) {
		Log.i(this, "PackageName is empty. Not performing call screening.");
		return false;
		}

		Intent intent = new Intent(CallScreeningService.SERVICE_INTERFACE)
		.setPackage(dialerPackage);
		.setPackage(mPackageName);
		List<ResolveInfo> entries = mContext.getPackageManager().queryIntentServicesAsUser(
		intent, 0, mCallsManager.getCurrentUserHandle().getIdentifier());
		if (entries.isEmpty()) {
		Log.i(this, "There are no call screening services installed on this device.");
		Log.i(this, mPackageName + "is no call screening services installed on this device.");
		return false;
		}

		ResolveInfo entry = entries.get(0);
		if (entry.serviceInfo == null) {
		Log.w(this, "The call screening service has invalid service info");
		Log.w(this, mPackageName + " call screening service has invalid service info");
		return false;
		}

tests/src/com/android/server/telecom/tests/CallScreeningServiceControllerTest.java

0 → 100644

+351 −0

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