[Call Screening]Logging of calls blocked by call blocking feature, call screening app. (0a07bab6) · Commits · e / os / android_packages_services_Telecomm

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

+54 −21

Original line number	Diff line number	Diff line
		@@ -39,6 +39,7 @@ import android.telephony.PhoneNumberUtils;
		// TODO: Needed for move to system service: import com.android.internal.R;
		import com.android.internal.annotations.VisibleForTesting;
		import com.android.internal.telephony.CallerInfo;
		import com.android.server.telecom.callfiltering.CallFilteringResult;

		import java.util.Arrays;
		import java.util.HashSet;
		@@ -83,7 +84,8 @@ public final class CallLogManager extends CallsManagerListenerBase {
		String postDialDigits, String viaNumber, int presentation, int callType,
		int features, PhoneAccountHandle accountHandle, long creationDate,
		long durationInMillis, Long dataUsage, UserHandle initiatingUser, boolean isRead,
		@Nullable LogCallCompletedListener logCallCompletedListener) {
		@Nullable LogCallCompletedListener logCallCompletedListener, int callBlockReason,
		String callScreeningAppName, String callScreeningComponentName) {
		this.context = context;
		this.callerInfo = callerInfo;
		this.number = number;
		@@ -99,6 +101,9 @@ public final class CallLogManager extends CallsManagerListenerBase {
		this.initiatingUser = initiatingUser;
		this.isRead = isRead;
		this.logCallCompletedListener = logCallCompletedListener;
		this.callBockReason = callBlockReason;
		this.callScreeningAppName = callScreeningAppName;
		this.callScreeningComponentName = callScreeningComponentName;
		}
		// Since the members are accessed directly, we don't use the
		// mXxxx notation.
		@@ -119,6 +124,10 @@ public final class CallLogManager extends CallsManagerListenerBase {

		@Nullable
		public final LogCallCompletedListener logCallCompletedListener;

		public final int callBockReason;
		public final String callScreeningAppName;
		public final String callScreeningComponentName;
		}

		private static final String TAG = CallLogManager.class.getSimpleName();
		@@ -182,22 +191,23 @@ public final class CallLogManager extends CallsManagerListenerBase {
		// Always show the notification for managed calls. For self-managed calls, it is up to
		// the app to show the notification, so suppress the notification when logging the call.
		boolean showNotification = !call.isSelfManaged();
		logCall(call, type, showNotification);
		logCall(call, type, showNotification, null /result/);
		}
		}

		void logCall(Call call, int type, boolean showNotificationForMissedCall) {
		if (type == Calls.MISSED_TYPE && showNotificationForMissedCall) {
		logCall(call, Calls.MISSED_TYPE,
		new LogCallCompletedListener() {
		void logCall(Call call, int type, boolean showNotificationForMissedCall, CallFilteringResult
		result) {
		if ((type == Calls.MISSED_TYPE \|\| type == Calls.BLOCKED_TYPE) &&
		showNotificationForMissedCall) {
		logCall(call, type, new LogCallCompletedListener() {
		@Override
		public void onLogCompleted(@Nullable Uri uri) {
		mMissedCallNotifier.showMissedCallNotification(
		new MissedCallNotifier.CallInfo(call));
		}
		});
		}, result);
		} else {
		logCall(call, type, null);
		logCall(call, type, null, result);
		}
		}

		@@ -209,10 +219,13 @@ public final class CallLogManager extends CallsManagerListenerBase {
		* {@link android.provider.CallLog.Calls#INCOMING_TYPE}
		* {@link android.provider.CallLog.Calls#OUTGOING_TYPE}
		* {@link android.provider.CallLog.Calls#MISSED_TYPE}
		* {@link android.provider.CallLog.Calls#BLOCKED_TYPE}
		* @param logCallCompletedListener optional callback called after the call is logged.
		* @param result is generated when call type is
		* {@link android.provider.CallLog.Calls#BLOCKED_TYPE}.
		*/
		void logCall(Call call, int callLogType,
		@Nullable LogCallCompletedListener logCallCompletedListener) {
		@Nullable LogCallCompletedListener logCallCompletedListener, CallFilteringResult result) {
		final long creationTime = call.getCreationTimeMillis();
		final long age = call.getAgeMillis();

		@@ -242,10 +255,22 @@ public final class CallLogManager extends CallsManagerListenerBase {
		(call.getConnectionProperties() & Connection.PROPERTY_ASSISTED_DIALING_USED) ==
		Connection.PROPERTY_ASSISTED_DIALING_USED,
		call.wasEverRttCall());

		if (callLogType == Calls.BLOCKED_TYPE) {
		logCall(call.getCallerInfo(), logNumber, call.getPostDialDigits(), formattedViaNumber,
		call.getHandlePresentation(), callLogType, callFeatures, accountHandle,
		creationTime, age, callDataUsage, call.isEmergencyCall(),
		call.getInitiatingUser(), call.isSelfManaged(), logCallCompletedListener,
		result.mCallBlockReason, result.mCallScreeningAppName,
		result.mCallScreeningComponentName);
		} else {
		logCall(call.getCallerInfo(), logNumber, call.getPostDialDigits(), formattedViaNumber,
		call.getHandlePresentation(), callLogType, callFeatures, accountHandle,
		creationTime, age, callDataUsage, call.isEmergencyCall(), call.getInitiatingUser(),
		call.isSelfManaged(), logCallCompletedListener);
		creationTime, age, callDataUsage, call.isEmergencyCall(),
		call.getInitiatingUser(), call.isSelfManaged(), logCallCompletedListener,
		Calls.BLOCK_REASON_NOT_BLOCKED, null /callScreeningAppName/,
		null /callScreeningComponentName/);
		}
		}

		/**
		@@ -265,6 +290,9 @@ public final class CallLogManager extends CallsManagerListenerBase {
		* @param logCallCompletedListener optional callback called after the call is logged.
		* @param initiatingUser The user the call was initiated under.
		* @param isSelfManaged {@code true} if this is a self-managed call, {@code false} otherwise.
		* @param callBlockReason The reason why the call is blocked.
		* @param callScreeningAppName The call screening application name which block the call.
		* @param callScreeningComponentName The call screening component name which block the call.
		*/
		private void logCall(
		CallerInfo callerInfo,
		@@ -281,7 +309,10 @@ public final class CallLogManager extends CallsManagerListenerBase {
		boolean isEmergency,
		UserHandle initiatingUser,
		boolean isSelfManaged,
		@Nullable LogCallCompletedListener logCallCompletedListener) {
		@Nullable LogCallCompletedListener logCallCompletedListener,
		int callBlockReason,
		String callScreeningAppName,
		String callScreeningComponentName) {

		// On some devices, to avoid accidental redialing of emergency numbers, we never log
		// emergency calls to the Call Log. (This behavior is set on a per-product basis, based
		@@ -314,7 +345,8 @@ public final class CallLogManager extends CallsManagerListenerBase {
		}
		AddCallArgs args = new AddCallArgs(mContext, callerInfo, number, postDialDigits,
		viaNumber, presentation, callType, features, accountHandle, start, duration,
		dataUsage, initiatingUser, isRead, logCallCompletedListener);
		dataUsage, initiatingUser, isRead, logCallCompletedListener, callBlockReason,
		callScreeningAppName, callScreeningComponentName);
		logCallAsync(args);
		} else {
		Log.d(TAG, "Not adding emergency call to call log.");
		@@ -475,7 +507,8 @@ public final class CallLogManager extends CallsManagerListenerBase {
		return Calls.addCall(c.callerInfo, c.context, c.number, c.postDialDigits, c.viaNumber,
		c.presentation, c.callType, c.features, c.accountHandle, c.timestamp,
		c.durationInSec, c.dataUsage, userToBeInserted == null,
		userToBeInserted, c.isRead);
		userToBeInserted, c.isRead, c.callBockReason, c.callScreeningAppName,
		c.callScreeningComponentName);
		}

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

+8 −7

Original line number	Diff line number	Diff line
		@@ -569,7 +569,8 @@ public class CallsManager extends Call.ListenerBase
		filters.add(new AsyncBlockCheckFilter(mContext, new BlockCheckerAdapter(),
		mCallerInfoLookupHelper, null));
		filters.add(new CallScreeningServiceFilter(mContext, this, mPhoneAccountRegistrar,
		mDefaultDialerCache, new ParcelableCallUtils.Converter(), mLock));
		mDefaultDialerCache, new ParcelableCallUtils.Converter(), mLock,
		new TelecomServiceImpl.SettingsSecureAdapterImpl()));
		new IncomingCallFilter(mContext, this, incomingCall, mLock,
		mTimeoutsAdapter, filters).performFiltering();
		}
		@@ -595,7 +596,7 @@ public class CallsManager extends Call.ListenerBase
		} else {
		Log.i(this, "onCallFilteringCompleted: Call rejected! " +
		"Exceeds maximum number of ringing calls.");
		rejectCallAndLog(incomingCall);
		rejectCallAndLog(incomingCall, result);
		}
		} else if (hasMaximumManagedDialingCalls(incomingCall)) {
		if (shouldSilenceInsteadOfReject(incomingCall)) {
		@@ -604,7 +605,7 @@ public class CallsManager extends Call.ListenerBase

		Log.i(this, "onCallFilteringCompleted: Call rejected! Exceeds maximum number of " +
		"dialing calls.");
		rejectCallAndLog(incomingCall);
		rejectCallAndLog(incomingCall, result);
		}
		} else {
		addCall(incomingCall);
		@@ -619,8 +620,8 @@ public class CallsManager extends Call.ListenerBase
		if (result.shouldShowNotification) {
		Log.w(this, "onCallScreeningCompleted: blocked call, showing notification.");
		}
		mCallLogManager.logCall(incomingCall, Calls.MISSED_TYPE,
		result.shouldShowNotification);
		mCallLogManager.logCall(incomingCall, Calls.BLOCKED_TYPE,
		result.shouldShowNotification, result);
		} else if (result.shouldShowNotification) {
		Log.i(this, "onCallScreeningCompleted: blocked call, showing notification.");
		mMissedCallNotifier.showMissedCallNotification(
		@@ -2442,7 +2443,7 @@ public class CallsManager extends Call.ListenerBase
		* Reject an incoming call and manually add it to the Call Log.
		* @param incomingCall Incoming call that has been rejected
		*/
		private void rejectCallAndLog(Call incomingCall) {
		private void rejectCallAndLog(Call incomingCall, CallFilteringResult result) {
		if (incomingCall.getConnectionService() != null) {
		// Only reject the call if it has not already been destroyed. If a call ends while
		// incoming call filtering is taking place, it is possible that the call has already
		@@ -2457,7 +2458,7 @@ public class CallsManager extends Call.ListenerBase
		// call notifier and the call logger manually.
		// Do we need missed call notification for direct to Voicemail calls?
		mCallLogManager.logCall(incomingCall, Calls.MISSED_TYPE,
		true /showNotificationForMissedCall/);
		true /showNotificationForMissedCall/, result);
		}

		/**

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

+30 −2

Original line number	Diff line number	Diff line
		@@ -21,6 +21,7 @@ import android.net.Uri;
		import android.os.AsyncTask;
		import android.os.Bundle;
		import android.provider.BlockedNumberContract;
		import android.provider.CallLog;
		import android.telecom.Log;
		import android.telecom.Logging.Session;
		import android.telecom.TelecomManager;
		@@ -123,8 +124,11 @@ public class AsyncBlockCheckFilter extends AsyncTask<String, Void, Boolean>
		result = new CallFilteringResult(
		false, // shouldAllowCall
		true, //shouldReject
		false, //shouldAddToCallLog
		false // shouldShowNotification
		true, //shouldAddToCallLog
		false, // shouldShowNotification
		convertBlockStatusToReason(), //callBlockReason
		null, //callScreeningAppName
		null //callScreeningComponentName
		);
		if (mCallBlockListener != null) {
		String number = mIncomingCall.getHandle() == null ? null
		@@ -148,4 +152,28 @@ public class AsyncBlockCheckFilter extends AsyncTask<String, Void, Boolean>
		Log.endSession();
		}
		}

		private int convertBlockStatusToReason() {
		switch (mBlockStatus) {
		case BlockedNumberContract.STATUS_BLOCKED_IN_LIST:
		return CallLog.Calls.BLOCK_REASON_BLOCKED_NUMBER;

		case BlockedNumberContract.STATUS_BLOCKED_UNKNOWN_NUMBER:
		return CallLog.Calls.BLOCK_REASON_UNKNOWN_NUMBER;

		case BlockedNumberContract.STATUS_BLOCKED_RESTRICTED:
		return CallLog.Calls.BLOCK_REASON_RESTRICTED_NUMBER;

		case BlockedNumberContract.STATUS_BLOCKED_PAYPHONE:
		return CallLog.Calls.BLOCK_REASON_PAY_PHONE;

		case BlockedNumberContract.STATUS_BLOCKED_NOT_IN_CONTACTS:
		return CallLog.Calls.BLOCK_REASON_NOT_IN_CONTACTS;

		default:
		Log.w(AsyncBlockCheckFilter.class.getSimpleName(),
		"There's no call log block reason can be converted");
		return CallLog.Calls.BLOCK_REASON_BLOCKED_NUMBER;
		}
		}
		}

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

+109 −7

Original line number	Diff line number	Diff line
		@@ -16,11 +16,18 @@

		package com.android.server.telecom.callfiltering;

		import android.provider.CallLog;
		import android.provider.CallLog.Calls;
		import android.text.TextUtils;

		public class CallFilteringResult {
		public boolean shouldAllowCall;
		public boolean shouldReject;
		public boolean shouldAddToCallLog;
		public boolean shouldShowNotification;
		public int mCallBlockReason = CallLog.Calls.BLOCK_REASON_NOT_BLOCKED;
		public String mCallScreeningAppName = null;
		public String mCallScreeningComponentName = null;

		public CallFilteringResult(boolean shouldAllowCall, boolean shouldReject, boolean
		shouldAddToCallLog, boolean shouldShowNotification) {
		@@ -30,15 +37,53 @@ public class CallFilteringResult {
		this.shouldShowNotification = shouldShowNotification;
		}

		public CallFilteringResult(boolean shouldAllowCall, boolean shouldReject, boolean
		shouldAddToCallLog, boolean shouldShowNotification, int callBlockReason, String
		callScreeningAppName, String callScreeningComponentName) {
		this.shouldAllowCall = shouldAllowCall;
		this.shouldReject = shouldReject;
		this.shouldAddToCallLog = shouldAddToCallLog;
		this.shouldShowNotification = shouldShowNotification;
		this.mCallBlockReason = callBlockReason;
		this.mCallScreeningAppName = callScreeningAppName;
		this.mCallScreeningComponentName = callScreeningComponentName;
		}

		/**
		* Combine this CallFilteringResult with another, returning a CallFilteringResult with
		* the more restrictive properties of the two.
		* Combine this CallFilteringResult with another, returning a CallFilteringResult with the more
		* restrictive properties of the two. Where there are multiple call filtering components which
		* block a call, the first filter from {@link AsyncBlockCheckFilter},
		* {@link DirectToVoicemailCallFilter}, {@link CallScreeningServiceFilter} which blocked a call
		* shall be used to populate the call block reason, component name, etc.
		*/
		public CallFilteringResult combine(CallFilteringResult other) {
		if (other == null) {
		return this;
		}

		if (isBlockedByProvider(mCallBlockReason)) {
		return getCombinedCallFilteringResult(other, mCallBlockReason,
		null /callScreeningAppName/, null /callScreeningComponentName/);
		} else if (isBlockedByProvider(other.mCallBlockReason)) {
		return getCombinedCallFilteringResult(other, other.mCallBlockReason,
		null /callScreeningAppName/, null /callScreeningComponentName/);
		}

		if (mCallBlockReason == Calls.BLOCK_REASON_DIRECT_TO_VOICEMAIL
		\|\| other.mCallBlockReason == Calls.BLOCK_REASON_DIRECT_TO_VOICEMAIL) {
		return getCombinedCallFilteringResult(other, Calls.BLOCK_REASON_DIRECT_TO_VOICEMAIL,
		null /callScreeningAppName/, null /callScreeningComponentName/);
		}

		if (shouldReject && mCallBlockReason == CallLog.Calls.BLOCK_REASON_CALL_SCREENING_SERVICE) {
		return getCombinedCallFilteringResult(other, Calls.BLOCK_REASON_CALL_SCREENING_SERVICE,
		mCallScreeningAppName, mCallScreeningComponentName);
		} else if (other.shouldReject && other.mCallBlockReason == CallLog.Calls
		.BLOCK_REASON_CALL_SCREENING_SERVICE) {
		return getCombinedCallFilteringResult(other, Calls.BLOCK_REASON_CALL_SCREENING_SERVICE,
		other.mCallScreeningAppName, other.mCallScreeningComponentName);
		}

		return new CallFilteringResult(
		shouldAllowCall && other.shouldAllowCall,
		shouldReject \|\| other.shouldReject,
		@@ -46,6 +91,31 @@ public class CallFilteringResult {
		shouldShowNotification && other.shouldShowNotification);
		}

		private boolean isBlockedByProvider(int blockReason) {
		if (blockReason == Calls.BLOCK_REASON_BLOCKED_NUMBER
		\|\| blockReason == Calls.BLOCK_REASON_UNKNOWN_NUMBER
		\|\| blockReason == Calls.BLOCK_REASON_RESTRICTED_NUMBER
		\|\| blockReason == Calls.BLOCK_REASON_PAY_PHONE
		\|\| blockReason == Calls.BLOCK_REASON_NOT_IN_CONTACTS) {
		return true;
		}

		return false;
		}

		private CallFilteringResult getCombinedCallFilteringResult(CallFilteringResult other,
		int callBlockReason, String callScreeningAppName, String callScreeningComponentName) {
		return new CallFilteringResult(
		shouldAllowCall && other.shouldAllowCall,
		shouldReject \|\| other.shouldReject,
		shouldAddToCallLog && other.shouldAddToCallLog,
		shouldShowNotification && other.shouldShowNotification,
		callBlockReason,
		callScreeningAppName,
		callScreeningComponentName);
		}


		@Override
		public boolean equals(Object o) {
		if (this == o) return true;
		@@ -56,7 +126,24 @@ public class CallFilteringResult {
		if (shouldAllowCall != that.shouldAllowCall) return false;
		if (shouldReject != that.shouldReject) return false;
		if (shouldAddToCallLog != that.shouldAddToCallLog) return false;
		return shouldShowNotification == that.shouldShowNotification;
		if (shouldShowNotification != that.shouldShowNotification) return false;
		if (mCallBlockReason != that.mCallBlockReason) return false;

		if ((TextUtils.isEmpty(mCallScreeningAppName) &&
		TextUtils.isEmpty(that.mCallScreeningAppName)) &&
		(TextUtils.isEmpty(mCallScreeningComponentName) &&
		TextUtils.isEmpty(that.mCallScreeningComponentName))) {
		return true;
		} else if (!TextUtils.isEmpty(mCallScreeningAppName) &&
		!TextUtils.isEmpty(that.mCallScreeningAppName) &&
		mCallScreeningAppName.equals(that.mCallScreeningAppName) &&
		!TextUtils.isEmpty(mCallScreeningComponentName) &&
		!TextUtils.isEmpty(that.mCallScreeningComponentName) &&
		mCallScreeningComponentName.equals(that.mCallScreeningComponentName)) {
		return true;
		}

		return false;
		}

		@Override
		@@ -87,6 +174,21 @@ public class CallFilteringResult {
		if (shouldShowNotification) {
		sb.append(", notified");
		}

		if (mCallBlockReason != 0) {
		sb.append(", mCallBlockReason = ");
		sb.append(mCallBlockReason);
		}

		if (!TextUtils.isEmpty(mCallScreeningAppName)) {
		sb.append(", mCallScreeningAppName = ");
		sb.append(mCallScreeningAppName);
		}

		if (!TextUtils.isEmpty(mCallScreeningComponentName)) {
		sb.append(", mCallScreeningComponentName = ");
		sb.append(mCallScreeningComponentName);
		}
		sb.append("]");

		return sb.toString();

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

+75 −8

Original line number	Diff line number	Diff line
		@@ -24,10 +24,15 @@ import android.content.ServiceConnection;
		import android.content.pm.ResolveInfo;
		import android.os.Binder;
		import android.os.IBinder;
		import android.os.PersistableBundle;
		import android.os.RemoteException;
		import android.os.UserHandle;
		import android.provider.CallLog;
		import android.provider.Settings;
		import android.telecom.CallScreeningService;
		import android.telecom.Log;
		import android.telecom.TelecomManager;
		import android.telephony.CarrierConfigManager;
		import android.text.TextUtils;

		import com.android.internal.telecom.ICallScreeningAdapter;
		@@ -39,6 +44,7 @@ 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;

		import java.util.List;
		@@ -108,20 +114,26 @@ public class CallScreeningServiceFilter implements IncomingCallFilter.CallFilter
		String callId,
		boolean shouldReject,
		boolean shouldAddToCallLog,
		boolean shouldShowNotification) {
		boolean shouldShowNotification,
		ComponentName componentName) {
		Log.startSession("CSCR.dC");
		long token = Binder.clearCallingIdentity();
		try {
		synchronized (mTelecomLock) {
		boolean isServiceRequestingLogging = isLoggable(componentName,
		shouldAddToCallLog);
		Log.i(this, "disallowCall(%s), shouldReject: %b, shouldAddToCallLog: %b, "
		+ "shouldShowNotification: %b", callId, shouldReject,
		shouldAddToCallLog, shouldShowNotification);
		isServiceRequestingLogging, shouldShowNotification);
		if (mCall != null && mCall.getId().equals(callId)) {
		mResult = new CallFilteringResult(
		false, // shouldAllowCall
		shouldReject, //shouldReject
		shouldAddToCallLog, //shouldAddToCallLog
		shouldShowNotification // shouldShowNotification
		isServiceRequestingLogging, //shouldAddToCallLog
		shouldShowNotification, // shouldShowNotification
		CallLog.Calls.BLOCK_REASON_CALL_SCREENING_SERVICE, //callBlockReason
		componentName.getPackageName(), //callScreeningAppName
		componentName.flattenToString() //callScreeningComponentName
		);
		} else {
		Log.w(this, "disallowCall, unknown call id: %s", callId);
		@@ -141,6 +153,7 @@ public class CallScreeningServiceFilter implements IncomingCallFilter.CallFilter
		private final DefaultDialerCache mDefaultDialerCache;
		private final ParcelableCallUtils.Converter mParcelableCallUtilsConverter;
		private final TelecomSystem.SyncRoot mTelecomLock;
		private final SettingsSecureAdapter mSettingsSecureAdapter;

		private Call mCall;
		private CallFilterResultCallback mCallback;
		@@ -161,13 +174,15 @@ public class CallScreeningServiceFilter implements IncomingCallFilter.CallFilter
		PhoneAccountRegistrar phoneAccountRegistrar,
		DefaultDialerCache defaultDialerCache,
		ParcelableCallUtils.Converter parcelableCallUtilsConverter,
		TelecomSystem.SyncRoot lock) {
		TelecomSystem.SyncRoot lock,
		SettingsSecureAdapter settingsSecureAdapter) {
		mContext = context;
		mPhoneAccountRegistrar = phoneAccountRegistrar;
		mCallsManager = callsManager;
		mDefaultDialerCache = defaultDialerCache;
		mParcelableCallUtilsConverter = parcelableCallUtilsConverter;
		mTelecomLock = lock;
		mSettingsSecureAdapter = settingsSecureAdapter;
		}

		@Override
		@@ -261,4 +276,56 @@ public class CallScreeningServiceFilter implements IncomingCallFilter.CallFilter
		finishCallScreening();
		}
		}

		private boolean isLoggable(ComponentName componentName, boolean shouldAddToCallLog) {
		if (isCarrierCallScreeningApp(componentName)) {
		return shouldAddToCallLog;
		} else if (isDefaultDialer(componentName) \|\| isUserChosenCallScreeningApp(componentName)) {
		return true;
		}

		return shouldAddToCallLog;
		}

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

		if (!TextUtils.isEmpty(carrierCallScreeningApp) && carrierCallScreeningApp
		.equals(componentName.flattenToString())) {
		return true;
		}

		return false;
		}

		private boolean isDefaultDialer(ComponentName componentName) {
		String defaultDialer = TelecomManager.from(mContext).getDefaultDialerPackage();

		if (!TextUtils.isEmpty(defaultDialer) && defaultDialer
		.equals(componentName.getPackageName())) {
		return true;
		}

		return false;
		}

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

		if (!TextUtils.isEmpty(defaultCallScreeningApplication) && defaultCallScreeningApplication
		.equals(componentName.flattenToString())) {
		return true;
		}

		return false;
		}
		}