Log when emergency state changes to track location-related AppOps (529c720a) · Commits · e / os / android_frameworks_base

services/core/java/com/android/server/location/LocationManagerService.java

+7 −0

Original line number	Diff line number	Diff line
		@@ -296,6 +296,8 @@ public class LocationManagerService extends ILocationManager.Stub implements
		refreshAppOpsRestrictions(userId);
		}
		});
		mInjector.getEmergencyHelper().addOnEmergencyStateChangedListener(
		this::onEmergencyStateChanged);

		// set up passive provider first since it will be required for all other location providers,
		// which are loaded later once the system is ready.
		@@ -567,6 +569,11 @@ public class LocationManagerService extends ILocationManager.Stub implements
		refreshAppOpsRestrictions(userId);
		}

		private void onEmergencyStateChanged() {
		boolean isInEmergency = mInjector.getEmergencyHelper().isInEmergency(Long.MIN_VALUE);
		mInjector.getLocationUsageLogger().logEmergencyStateChanged(isInEmergency);
		}

		private void logLocationEnabledState() {
		boolean locationEnabled = false;
		// Location setting is considered on if it is enabled for any one user

+41 −0

Original line number	Diff line number	Diff line
		@@ -16,14 +16,55 @@

		package com.android.server.location.injector;

		import java.util.concurrent.CopyOnWriteArrayList;

		/**
		* Provides helpers for emergency sessions.
		*/
		public abstract class EmergencyHelper {

		private final CopyOnWriteArrayList<EmergencyStateChangedListener> mListeners;

		protected EmergencyHelper() {
		mListeners = new CopyOnWriteArrayList<>();
		}

		/**
		* Listener for emergency state changes.
		*/
		public interface EmergencyStateChangedListener {
		/**
		* Called when state changes.
		*/
		void onStateChanged();
		}

		/**
		* Returns true if the device is in an emergency session, or if an emergency session ended
		* within the given extension time.
		*/
		public abstract boolean isInEmergency(long extensionTimeMs);

		/**
		* Add a listener for changes to the emergency location state.
		*/
		public void addOnEmergencyStateChangedListener(EmergencyStateChangedListener listener) {
		mListeners.add(listener);
		}

		/**
		* Remove a listener for changes to the emergency location state.
		*/
		public void removeOnEmergencyStateChangedListener(EmergencyStateChangedListener listener) {
		mListeners.remove(listener);
		}

		/**
		* Notify listeners for emergency state of state change
		*/
		protected final void dispatchEmergencyStateChanged() {
		for (EmergencyStateChangedListener listener : mListeners) {
		listener.onStateChanged();
		}
		}
		}

+0 −2

Original line number	Diff line number	Diff line
		@@ -16,13 +16,11 @@

		package com.android.server.location.injector;

		import com.android.internal.annotations.VisibleForTesting;
		import com.android.server.location.settings.LocationSettings;

		/**
		* Injects various location dependencies so that they may be controlled by tests.
		*/
		@VisibleForTesting
		public interface Injector {

		/** Returns a UserInfoHelper. */

+7 −0

Original line number	Diff line number	Diff line
		@@ -129,6 +129,13 @@ public class LocationUsageLogger {
		FrameworkStatsLog.write(FrameworkStatsLog.LOCATION_ENABLED_STATE_CHANGED, enabled);
		}

		/**
		* Log emergency location state change event
		*/
		public synchronized void logEmergencyStateChanged(boolean isInEmergency) {
		FrameworkStatsLog.write(FrameworkStatsLog.EMERGENCY_STATE_CHANGED, isInEmergency);
		}

		private static int bucketizeProvider(String provider) {
		if (LocationManager.NETWORK_PROVIDER.equals(provider)) {
		return LocationStatsEnums.PROVIDER_NETWORK;

+15 −0

Original line number	Diff line number	Diff line
		@@ -27,6 +27,7 @@ import android.telephony.TelephonyCallback;
		import android.telephony.TelephonyManager;
		import android.util.Log;

		import com.android.internal.telephony.TelephonyIntents;
		import com.android.server.FgThread;

		import java.util.Objects;
		@@ -73,12 +74,25 @@ public class SystemEmergencyHelper extends EmergencyHelper {
		try {
		mIsInEmergencyCall = mTelephonyManager.isEmergencyNumber(
		intent.getStringExtra(Intent.EXTRA_PHONE_NUMBER));
		dispatchEmergencyStateChanged();
		} catch (IllegalStateException e) {
		Log.w(TAG, "Failed to call TelephonyManager.isEmergencyNumber().", e);
		}
		}
		}
		}, new IntentFilter(Intent.ACTION_NEW_OUTGOING_CALL));

		mContext.registerReceiver(new BroadcastReceiver() {
		@Override
		public void onReceive(Context context, Intent intent) {
		if (!TelephonyIntents.ACTION_EMERGENCY_CALLBACK_MODE_CHANGED.equals(
		intent.getAction())) {
		return;
		}

		dispatchEmergencyStateChanged();
		}
		}, new IntentFilter(TelephonyIntents.ACTION_EMERGENCY_CALLBACK_MODE_CHANGED));
		}

		@Override
		@@ -108,6 +122,7 @@ public class SystemEmergencyHelper extends EmergencyHelper {
		if (mIsInEmergencyCall) {
		mEmergencyCallEndRealtimeMs = SystemClock.elapsedRealtime();
		mIsInEmergencyCall = false;
		dispatchEmergencyStateChanged();
		}
		}
		}