feat:2398: whitelist app from fakelocation, improve codestyle (e9b92247) · Commits · e / os / android_frameworks_base

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

+33 −25

Original line number	Original line	Diff line number	Diff line
	@@ -17,6 +17,8 @@

	package com.android.server.location;		package com.android.server.location;

			import android.annotation.NonNull;
			import android.annotation.Nullable;
	import android.content.Context;		import android.content.Context;
	import android.location.Location;		import android.location.Location;
	import android.location.LocationResult;		import android.location.LocationResult;
	@@ -38,63 +40,69 @@ public class FakeLocationResolver {
	private static final String PARAM_LATITUDE = "latitude";		private static final String PARAM_LATITUDE = "latitude";
	private static final String PARAM_LONGITUDE = "longitude";		private static final String PARAM_LONGITUDE = "longitude";

	public static LocationResult fakeLocations(Context context, LocationResult baseLocations, CallerIdentity identity) {		public static @Nullable LocationResult fakeLocations(
	int uid = identity.getUid();		@NonNull Context context,
	String packageName = identity.getPackageName();		@Nullable LocationResult baseLocations,
			@NonNull CallerIdentity identity) {
			final int uid = identity.getUid();
			final String packageName = identity.getPackageName();

	if (baseLocations == null \|\| context == null \|\| packageName == null \|\| uid < 0) {		if (baseLocations == null \|\| context == null \|\| packageName == null \|\| uid < 0) {
	Log.w(TAG, "FakeLocationResolver::fakeLocations invalid parameters");		Log.w(TAG, "FakeLocationResolver::fakeLocations invalid parameters");
	return baseLocations;		return baseLocations;
	}		}
	FakeLocation latLon = getFakeLocation(context, packageName, uid);		final FakeLocation latLon = getFakeLocation(context, packageName, uid);
	if (latLon == null) return baseLocations;		if (latLon == null) return baseLocations;

	return LocationResult.wrap(overrideLatLons(baseLocations.asList(), latLon));		return LocationResult.wrap(overrideLatLon(baseLocations.asList(), latLon));
	}		}

	public static Location fakeLocation(Context context, Location baseLocation, CallerIdentity identity) {		public static @Nullable Location fakeLocation(
	int uid = identity.getUid();		@NonNull Context context,
	String packageName = identity.getPackageName();		@Nullable Location baseLocation,
			@NonNull CallerIdentity identity) {
			final int uid = identity.getUid();
			final String packageName = identity.getPackageName();

	if (baseLocation == null \|\| context == null \|\| packageName == null \|\| uid < 0) {		if (baseLocation == null \|\| context == null \|\| packageName == null \|\| uid < 0) {
	Log.w(TAG, "FakeLocationResolver::fakeLocation invalid parameters");		Log.w(TAG, "FakeLocationResolver::fakeLocation invalid parameters");
	return baseLocation;		return baseLocation;
	}		}
	FakeLocation latLon = getFakeLocation(context, packageName, uid);		final FakeLocation latLon = getFakeLocation(context, packageName, uid);
	if (latLon == null) return baseLocation;		if (latLon == null) return baseLocation;

	return overrideLatLons(baseLocation, latLon);		return overrideLatLon(baseLocation, latLon);
	}		}

	public static boolean hasFakeLocation(Context context, CallerIdentity identity) {		public static boolean hasFakeLocation(@NonNull Context context, @NonNull CallerIdentity identity) {
	int uid = identity.getUid();		final int uid = identity.getUid();
	String packageName = identity.getPackageName();		final String packageName = identity.getPackageName();

	if (context == null \|\| packageName == null \|\| uid < 0) {		if (context == null \|\| packageName == null \|\| uid < 0) {
	Log.w(TAG, "FakeLocationResolver::hasFakeLocation invalid parameters");		Log.w(TAG, "FakeLocationResolver::hasFakeLocation invalid parameters");
	return false;		return false;
	}		}
	FakeLocation latLon = getFakeLocation(context, packageName, uid);		final FakeLocation latLon = getFakeLocation(context, packageName, uid);
	if (latLon == null) return false;		if (latLon == null) return false;

	return true;		return true;
	}		}

	private static class FakeLocation {		private static class FakeLocation {
	Double latitude;		double latitude;
	Double longitude;		double longitude;

	public FakeLocation(Double latitude, Double longitude) {		public FakeLocation(double latitude, double longitude) {
	this.latitude = latitude;		this.latitude = latitude;
	this.longitude = longitude;		this.longitude = longitude;
	}		}
	}		}

	private static FakeLocation getFakeLocation(Context context, String packageName, int uid) {		private static @Nullable FakeLocation getFakeLocation(@NonNull Context context, @NonNull String packageName, int uid) {
	try {		try {
	Bundle extra = new Bundle();		final Bundle extra = new Bundle();
	extra.putInt(PARAM_UID, uid);		extra.putInt(PARAM_UID, uid);
	Bundle result = context.getContentResolver().call(		final Bundle result = context.getContentResolver().call(
	Uri.parse(FAKE_LOCATIONS_URI),		Uri.parse(FAKE_LOCATIONS_URI),
	"",		"",
	packageName,		packageName,
	@@ -110,18 +118,18 @@ public class FakeLocationResolver {
	return null;		return null;
	}		}

	private static List<Location> overrideLatLons(List<Location> baseLocations, FakeLocation latLon) {		private static @NonNull List<Location> overrideLatLon(@NonNull List<Location> baseLocations, @NonNull FakeLocation latLon) {
	ArrayList<Location> fakedLocations = new ArrayList<Location>(baseLocations.size());		final ArrayList<Location> fakedLocations = new ArrayList<Location>(baseLocations.size());
	for (Location location: baseLocations) {		for (Location location: baseLocations) {
	Location fakedLocation = overrideLatLons(location, latLon);		Location fakedLocation = overrideLatLon(location, latLon);

	fakedLocations.add(fakedLocation);		fakedLocations.add(fakedLocation);
	}		}
	return fakedLocations;		return fakedLocations;
	}		}

	private static Location overrideLatLons(Location baseLocation, FakeLocation latLon) {		private static @NonNull Location overrideLatLon(@NonNull Location baseLocation, @NonNull FakeLocation latLon) {
	Location fakedLocation = new Location(baseLocation);		final Location fakedLocation = new Location(baseLocation);
	fakedLocation.setLatitude(latLon.latitude);		fakedLocation.setLatitude(latLon.latitude);
	fakedLocation.setLongitude(latLon.longitude);		fakedLocation.setLongitude(latLon.longitude);
	fakedLocation.setAltitude(3.0);		fakedLocation.setAltitude(3.0);

services/core/java/com/android/server/location/provider/LocationProviderManager.java

+9 −8

Original line number	Original line	Diff line number	Diff line
	@@ -966,17 +966,17 @@ public class LocationProviderManager extends

	@Override		@Override
	public void operate(LocationTransport listener) throws Exception {		public void operate(LocationTransport listener) throws Exception {
	LocationResult fakedLocationResult = FakeLocationResolver.fakeLocations(mContext, locationResult, getIdentity());

	// if delivering to the same process, make a copy of the location first (since		// if delivering to the same process, make a copy of the location first (since
	// location is mutable)		// location is mutable)
	LocationResult deliverLocationResult;		LocationResult deliverLocationResult;
	if (getIdentity().getPid() == Process.myPid()) {		if (getIdentity().getPid() == Process.myPid()) {
	deliverLocationResult = fakedLocationResult.deepCopy();		deliverLocationResult = locationResult.deepCopy();
	} else {		} else {
	deliverLocationResult = fakedLocationResult;		deliverLocationResult = locationResult;
	}		}

			deliverLocationResult = FakeLocationResolver.fakeLocations(mContext, deliverLocationResult, getIdentity());

	listener.deliverOnLocationChanged(deliverLocationResult,		listener.deliverOnLocationChanged(deliverLocationResult,
	mUseWakeLock ? mWakeLockReleaser : null);		mUseWakeLock ? mWakeLockReleaser : null);
	EVENT_LOG.logProviderDeliveredLocations(mName, locationResult.size(),		EVENT_LOG.logProviderDeliveredLocations(mName, locationResult.size(),
	@@ -1271,16 +1271,17 @@ public class LocationProviderManager extends
	return new ListenerOperation<LocationTransport>() {		return new ListenerOperation<LocationTransport>() {
	@Override		@Override
	public void operate(LocationTransport listener) throws Exception {		public void operate(LocationTransport listener) throws Exception {
	LocationResult fakedLocationResult = FakeLocationResolver.fakeLocations(mContext, locationResult, getIdentity());
	// if delivering to the same process, make a copy of the location first (since		// if delivering to the same process, make a copy of the location first (since
	// location is mutable)		// location is mutable)
	LocationResult deliverLocationResult;		LocationResult deliverLocationResult;
	if (getIdentity().getPid() == Process.myPid() && fakedLocationResult != null) {		if (getIdentity().getPid() == Process.myPid() && locationResult != null) {
	deliverLocationResult = fakedLocationResult.deepCopy();		deliverLocationResult = locationResult.deepCopy();
	} else {		} else {
	deliverLocationResult = fakedLocationResult;		deliverLocationResult = locationResult;
	}		}

			deliverLocationResult = FakeLocationResolver.fakeLocations(mContext, deliverLocationResult, getIdentity());

	// we currently don't hold a wakelock for getCurrentLocation deliveries		// we currently don't hold a wakelock for getCurrentLocation deliveries
	listener.deliverOnLocationChanged(deliverLocationResult, null);		listener.deliverOnLocationChanged(deliverLocationResult, null);
	EVENT_LOG.logProviderDeliveredLocations(mName,		EVENT_LOG.logProviderDeliveredLocations(mName,