7530: POC whitelist app from fake location with content provider (ec705dd9) · Commits · e / os / Advanced Privacy

app/src/main/AndroidManifest.xml

+10 −0

Original line number	Diff line number	Diff line
		@@ -45,6 +45,16 @@
		android:windowSoftInputMode="adjustResize"
		tools:replace="android:icon,android:label,android:theme"
		>

		<!-- TODO: which protection could we use ? -->
		<provider
		android:name=".FakeLocationContentProvider"
		android:authorities="foundation.e.advancedprivacy.fakelocations"
		android:enabled="true"
		android:exported="true"
		/>


		<receiver
		android:name="foundation.e.advancedprivacy.common.BootCompletedReceiver"
		android:exported="true"

app/src/main/java/foundation/e/advancedprivacy/FakeLocationContentProvider.kt

0 → 100644

+69 −0

Original line number	Diff line number	Diff line
		package foundation.e.advancedprivacy

		import android.content.ContentProvider
		import android.content.ContentValues
		import android.database.Cursor
		import android.net.Uri
		import android.os.Bundle
		import android.util.Log
		import foundation.e.advancedprivacy.dummy.CityDataSource

		class FakeLocationContentProvider : ContentProvider() {
		private val PARAM_UID = "uid"
		private val PARAM_LATITUDE = "latitude"
		private val PARAM_LONGITUDE = "longitude"

		private val fakeLocations = mapOf(
		"com.generalmagic.magicearth" to CityDataSource.citiesLocationsList[0],
		"foundation.e.privacymodules.fakelocationdemo" to CityDataSource.citiesLocationsList[1],
		"com.google.android.apps.maps" to CityDataSource.citiesLocationsList[2],
		"foundation.e.advancedprivacy" to CityDataSource.citiesLocationsList[3],
		"com.mirfatif.mylocation" to CityDataSource.citiesLocationsList[0]
		)

		override fun call(method: String, arg: String?, extras: Bundle?): Bundle? {
		Log.d("AP-FakeLocation", "Called FakeLoc ContentProvider, for $arg")
		// val appUid = extras?.getInt(PARAM_UID, -1)?.takeIf { it != -1 }

		return fakeLocations.get(arg)?.let { (lat, lon) ->
		Bundle().apply {
		putDouble(PARAM_LATITUDE, lat.toDouble())
		putDouble(PARAM_LONGITUDE, lon.toDouble())
		}
		}
		}

		override fun onCreate(): Boolean {
		return true
		}

		override fun query(
		uri: Uri,
		projection: Array<out String>?,
		selection: String?,
		selectionArgs: Array<out String>?,
		sortOrder: String?
		): Cursor? {
		// Use call instead
		return null
		}

		override fun getType(uri: Uri): String? {
		return "text/plain"
		}

		override fun insert(p0: Uri, p1: ContentValues?): Uri? {
		// ReadOnly content provider
		return null
		}

		override fun delete(p0: Uri, p1: String?, p2: Array<out String>?): Int {
		// ReadOnly content provider
		return 0
		}

		override fun update(p0: Uri, p1: ContentValues?, p2: String?, p3: Array<out String>?): Int {
		// ReadOnly content provider
		return 0
		}
		}

app/src/main/res/values/strings.xml

+1 −1

Original line number	Diff line number	Diff line
		@@ -17,7 +17,7 @@
		~ along with this program. If not, see <https://www.gnu.org/licenses/>.
		-->
		<resources>
		<string name="app_name" translatable="false">Advanced Privacy</string>
		<string name="app_name" translatable="false">Advanced Privacy_POC</string>

		<!-- Commons -->
		<string name="empty" translatable="false"> </string>

fakelocation/fakelocationdemo/build.gradle

+3 −2

Original line number	Diff line number	Diff line
		@@ -49,7 +49,7 @@ android {
		allWarningsAsErrors = false
		}
		buildFeatures {
		dataBinding true
		viewBinding true
		}
		namespace 'foundation.e.privacymodules.fakelocationdemo'
		}
		@@ -59,12 +59,13 @@ dependencies {
		implementation project(':fakelocation')
		implementation project(':permissionsstandalone')


		implementation (
		libs.androidx.core.ktx,
		libs.androidx.appcompat,
		libs.google.material,
		)

		implementation("com.google.android.gms:play-services-location:21.0.0")
		testImplementation libs.junit

		}

fakelocation/fakelocationdemo/src/main/java/foundation/e/privacymodules/fakelocationdemo/MainActivity.kt

+121 −10

Original line number	Diff line number	Diff line
		@@ -25,6 +25,7 @@ import android.location.Location
		import android.location.LocationListener
		import android.location.LocationManager
		import android.os.Bundle
		import android.os.Looper
		import android.os.Process.myUid
		import android.util.Log
		import android.view.View
		@@ -32,13 +33,18 @@ import androidx.activity.result.contract.ActivityResultContracts
		import androidx.appcompat.app.AlertDialog
		import androidx.appcompat.app.AppCompatActivity
		import androidx.core.content.ContextCompat
		import androidx.databinding.DataBindingUtil
		import com.google.android.gms.location.LocationRequest
		import com.google.android.gms.location.LocationServices
		import com.google.android.gms.location.Priority
		import foundation.e.advancedprivacy.domain.entities.AppOpModes
		import foundation.e.advancedprivacy.domain.entities.ApplicationDescription
		import foundation.e.advancedprivacy.domain.entities.ProfileType
		import foundation.e.advancedprivacy.fakelocation.domain.usecases.FakeLocationModule
		import foundation.e.advancedprivacy.permissions.externalinterfaces.PermissionsPrivacyModuleImpl
		import foundation.e.privacymodules.fakelocationdemo.aosp.CallerIdentity
		import foundation.e.privacymodules.fakelocationdemo.aosp.LocationResult
		import foundation.e.privacymodules.fakelocationdemo.databinding.ActivityMainBinding
		import foundation.e.privacymodules.fakelocationdemo.microg.ClientIdentity

		class MainActivity : AppCompatActivity() {
		companion object {
		@@ -63,11 +69,12 @@ class MainActivity : AppCompatActivity() {

		override fun onCreate(savedInstanceState: Bundle?) {
		super.onCreate(savedInstanceState)
		binding = DataBindingUtil.setContentView(this, R.layout.activity_main)
		binding = ActivityMainBinding.inflate(layoutInflater)
		setContentView(binding.root)

		actionBar?.setDisplayHomeAsUpEnabled(true)

		binding.view = this
		setOnClickListeners()
		}

		override fun onResume() {
		@@ -75,15 +82,28 @@ class MainActivity : AppCompatActivity() {
		updateData("")
		}

		private fun setOnClickListeners() {
		binding.permissionsButton.setOnClickListener(::onClickPermission)

		binding.trueLocationButton.setOnClickListener(::onClickReset)
		binding.parisButton.setOnClickListener(::onClickParis)
		binding.londonButton.setOnClickListener(::onClickLondon)
		binding.amsterdamButton.setOnClickListener(::onClickAmsterdam)
		binding.toggleListenLocation.setOnClickListener(::onClickToggleListenLocation)
		binding.fakeLocationConfigButton.setOnClickListener { onClickFakeLocationConfig() }
		binding.toggleListenGmsLocation.setOnClickListener { onClickToggleListenGMSLocation(binding.toggleListenGmsLocation.isChecked) }
		}

		private fun updateData(mockedLocation: String) {
		binding.granted = permissionsModule.getAppOpMode(appDesc, AppOpsManager.OPSTR_MOCK_LOCATION) == AppOpModes.ALLOWED
		binding.permissionsButton.isChecked =
		permissionsModule.getAppOpMode(appDesc, AppOpsManager.OPSTR_MOCK_LOCATION) == AppOpModes.ALLOWED

		binding.mockedLocation = mockedLocation
		binding.mockedLocation.text = mockedLocation
		}

		private val listener = object : LocationListener {
		override fun onLocationChanged(location: Location) {
		binding.currentLocation = "lat: ${location.latitude} - lon: ${location.longitude}"
		binding.currentLocation.text = "lat: ${location.latitude} - lon: ${location.longitude}"
		}

		@Deprecated("Deprecated since API 29, never called.")
		@@ -92,11 +112,36 @@ class MainActivity : AppCompatActivity() {
		}

		override fun onProviderEnabled(provider: String) {
		binding.providerInfo = "onProdivderEnabled: $provider"
		binding.providerInfo.text = "onProdivderEnabled: $provider"
		}

		override fun onProviderDisabled(provider: String) {
		binding.providerInfo = "onProdivderDisabled: $provider"
		binding.providerInfo.text = "onProdivderDisabled: $provider"
		}
		}

		private val fusedLocationClient
		get() = LocationServices.getFusedLocationProviderClient(this)

		val locationRequest = LocationRequest.Builder(
		Priority.PRIORITY_HIGH_ACCURACY,
		// 1,5s is a good value for the UX while setting specific location.
		1500L
		).build()

		private var localListener = com.google.android.gms.location.LocationListener { location ->
		binding.currentGmsLocation.text = "lat: ${location.latitude} - lon: ${location.longitude}"
		}

		fun onClickToggleListenGMSLocation(isChecked: Boolean) {
		if (isChecked) {
		fusedLocationClient.requestLocationUpdates(
		locationRequest,
		localListener,
		Looper.getMainLooper()
		)
		} else {
		fusedLocationClient.removeLocationUpdates(localListener)
		}
		}

		@@ -110,7 +155,7 @@ class MainActivity : AppCompatActivity() {
		}

		locationManager.removeUpdates(listener)
		binding.currentLocation = "no listening"
		binding.currentLocation.text = "no listening"
		}

		private fun startLocationUpdates() {
		@@ -124,7 +169,7 @@ class MainActivity : AppCompatActivity() {
		1f,
		listener
		)
		binding.currentLocation = "listening started"
		binding.currentLocation.text = "listening started"
		} catch (se: SecurityException) {
		Log.e(TAG, "Missing permission", se)
		}
		@@ -214,4 +259,70 @@ class MainActivity : AppCompatActivity() {
		fun onClickAmsterdam(view: View?) {
		setFakeLocation(52.3547498, 4.8339211)
		}

		private fun testFakeLocationResolverMicroG(): List<Location> {
		return foundation.e.privacymodules.fakelocationdemo.microg.FakeLocationResolver.fakeLocations(
		this,
		ClientIdentity(packageName, myUid()),
		listOf(
		Location("gps").apply {
		latitude = 1.0
		longitude = 2.0
		}
		)
		)
		}

		private fun testFakeLocationsResolverAOSP(): List<Location> {
		val baseLocation = LocationResult(
		arrayListOf(
		Location("gps").apply {
		latitude = 1.0
		longitude = 2.0
		}
		)
		)

		val identity = CallerIdentity(myUid(), packageName)

		val result = foundation.e.privacymodules.fakelocationdemo.aosp.FakeLocationResolver
		.fakeLocations(this, baseLocation, identity)

		return result.asList()
		}

		private fun testFakeLocationResolverAOSP(): Location {
		val baseLocation = Location("gps").apply {
		latitude = 1.0
		longitude = 2.0
		}

		val identity = CallerIdentity(myUid(), packageName)

		val result = foundation.e.privacymodules.fakelocationdemo.aosp.FakeLocationResolver
		.fakeLocation(this, baseLocation, identity)

		return result
		}

		private fun testHasFakeLocationAOSP(): Boolean {
		val identity = CallerIdentity(myUid(), packageName)

		val result = foundation.e.privacymodules.fakelocationdemo.aosp.FakeLocationResolver
		.hasFakeLocation(this, identity)

		return result
		}

		private fun onClickFakeLocationConfig() {
		Log.d("DebugFakeLoc", "onClickFakeLocationConfig")
		val test = "microg: ${testFakeLocationResolverMicroG()}" +
		"\nAOSP: ${testFakeLocationsResolverAOSP()}" +
		"\nAOSP one: ${testFakeLocationResolverAOSP()}" +
		"\nAOSP has: ${testHasFakeLocationAOSP()}"

		binding.currentLocation.text = test

		Log.d("DebugFakeLoc", test)
		}
		}