Created biometric provider.

Test: Manually verified data was fetched successfully.
Test: adb shell device_config put biometrics_framework
com.android.settings.flags.biometric_settings_provider true
Test: atest BiometricSettingsProviderTest
Bug: 303595205

Change-Id: I154754eed7c36d659853ed83cc18a2e446fb7678

AndroidManifest.xml

@@ -11,6 +11,11 @@
         android:name="com.android.settings.BATTERY_DATA"
         android:protectionLevel="signature|privileged"/>
 
+    <!-- Permission for using the Biometric Settings Provider. -->
+    <permission
+        android:name="com.android.settings.USE_BIOMETRIC_PROVIDER"
+        android:protectionLevel="signature|privileged"/>
+
     <uses-permission android:name="android.permission.REQUEST_NETWORK_SCORES" />
     <uses-permission android:name="android.permission.WRITE_MEDIA_STORAGE" />
     <uses-permission android:name="android.permission.MANAGE_EXTERNAL_STORAGE" />
@@ -4971,6 +4976,16 @@
                 android:value="@string/menu_key_security"/>
         </activity>
 
+         <provider
+            android:name=".biometrics.BiometricSettingsProvider"
+            android:authorities="${applicationId}.biometrics.provider"
+            android:exported="true"
+            android:permission="com.android.settings.USE_BIOMETRIC_PROVIDER">
+            <intent-filter>
+                <action android:name="com.android.settings.biometrics.BIOMETRIC_SETTINGS_PROVIDER" />
+            </intent-filter>
+        </provider>
+
         <activity-alias android:name="UsageStatsActivity"
                         android:exported="true"
                         android:label="@string/testing_usage_stats"

aconfig/Android.bp

@@ -14,6 +14,7 @@ aconfig_declarations {
         "settings_telephony_flag_declarations.aconfig",
         "settings_biometrics_integration_declarations.aconfig",
         "settings_voice_activation_apps_flag_declarations.aconfig",
+        "settings_biometrics_framework_flag_declarations.aconfig",
     ],
 }
 

aconfig/settings_biometrics_framework_flag_declarations.aconfig

@@ -0,0 +1,8 @@
+package: "com.android.settings.flags"
+
+flag {
+  name: "biometric_settings_provider"
+  namespace: "biometrics_framework"
+  description: "This flag enables or disables the BiometricSettingsProvider"
+  bug: "303595205"
+}

src/com/android/settings/biometrics/BiometricSettingsProvider.kt

@@ -0,0 +1,78 @@
+/*
+ * Copyright (C) 2023 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.settings.biometrics
+
+import android.content.ContentProvider
+import android.content.ContentValues
+import android.database.Cursor
+import android.net.Uri
+import android.os.Bundle
+import com.android.settings.flags.Flags
+
+class BiometricSettingsProvider : ContentProvider() {
+  companion object {
+    const val GET_SUW_FACE_ENABLED = "getSuwFaceEnabled"
+    const val SUW_FACE_ENABLED = "suw_face_enabled"
+  }
+
+  override fun delete(uri: Uri, selection: String?, selectionArgs: Array<out String>?): Int {
+    throw UnsupportedOperationException("query operation not supported currently.")
+  }
+
+  override fun getType(uri: Uri): String? {
+    throw UnsupportedOperationException("getType not supported")
+  }
+
+  override fun insert(uri: Uri, values: ContentValues?): Uri? {
+    throw UnsupportedOperationException("insert not supported")
+  }
+
+  override fun query(
+    uri: Uri,
+    projection: Array<out String>?,
+    selection: String?,
+    selectionArgs: Array<out String>?,
+    sortOrder: String?
+  ): Cursor? {
+    throw UnsupportedOperationException("query not supported")
+  }
+
+  override fun update(
+    uri: Uri,
+    values: ContentValues?,
+    selection: String?,
+    selectionArgs: Array<out String>?
+  ): Int {
+    throw UnsupportedOperationException("update not supported")
+  }
+
+  override fun onCreate(): Boolean = true
+
+  override fun call(method: String, arg: String?, extras: Bundle?): Bundle? {
+    val bundle = Bundle()
+    if (Flags.biometricSettingsProvider()) {
+      if (GET_SUW_FACE_ENABLED == method) {
+        val faceEnabled =
+          requireContext()
+            .resources
+            .getBoolean(com.android.settings.R.bool.config_suw_support_face_enroll)
+        bundle.putBoolean(SUW_FACE_ENABLED, faceEnabled)
+      }
+    }
+    return bundle
+  }
+}

tests/robotests/src/com/android/settings/biometrics/BiometricSettingsProviderTest.kt

@@ -0,0 +1,92 @@
+/*
+ * Copyright (C) 2023 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.settings.biometrics
+
+import android.content.Context
+import android.content.res.Resources
+import android.net.Uri
+import android.os.Bundle
+import android.platform.test.annotations.RequiresFlagsEnabled
+import android.platform.test.flag.junit.CheckFlagsRule
+import android.platform.test.flag.junit.DeviceFlagsValueProvider
+import com.android.settings.flags.Flags
+import com.google.common.truth.Truth.assertThat
+import org.junit.Before
+import org.junit.Rule
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.mockito.Mockito.spy
+import org.mockito.Mockito.`when` as whenever
+import org.mockito.Spy
+import org.robolectric.RobolectricTestRunner
+import org.robolectric.RuntimeEnvironment
+
+@RunWith(RobolectricTestRunner::class)
+class BiometricSettingsProviderTest {
+  @Spy private var context: Context = spy(RuntimeEnvironment.application)
+  @Spy private var resources: Resources = spy(context.resources)
+  private lateinit var provider: BiometricSettingsProvider
+
+  @get:Rule val checkFlagsRule: CheckFlagsRule = DeviceFlagsValueProvider.createCheckFlagsRule()
+
+  @Before
+  fun setUp() {
+    provider = BiometricSettingsProvider()
+  }
+
+  @Test(expected = UnsupportedOperationException::class)
+  fun query_shouldCrash() {
+    provider.query(Uri.EMPTY, null, null, null, null)
+  }
+
+  @Test(expected = UnsupportedOperationException::class)
+  fun getType_shouldCrash() {
+    provider.getType(Uri.EMPTY)
+  }
+
+  @Test(expected = UnsupportedOperationException::class)
+  fun insert_shouldCrash() {
+    provider.insert(Uri.EMPTY, null)
+  }
+
+  @Test(expected = UnsupportedOperationException::class)
+  fun delete_shouldCrash() {
+    provider.delete(Uri.EMPTY, null, null)
+  }
+
+  @Test(expected = UnsupportedOperationException::class)
+  fun update_shouldCrash() {
+    provider.update(Uri.EMPTY, null, null, null)
+  }
+
+  @Test
+  @RequiresFlagsEnabled(Flags.FLAG_BIOMETRIC_SETTINGS_PROVIDER)
+  fun getSuggestionState_shouldQueryFeatureProvider() {
+    val expectedValue = false
+    setSupportFaceEnroll(expectedValue)
+
+    val bundle =
+      provider.call(BiometricSettingsProvider.GET_SUW_FACE_ENABLED, null, Bundle())
+    assertThat(bundle!!.getString(BiometricSettingsProvider.SUW_FACE_ENABLED))
+      .isEqualTo(expectedValue)
+  }
+
+  private fun setSupportFaceEnroll(toThis: Boolean) {
+    whenever(resources.getBoolean(com.android.settings.R.bool.config_suw_support_face_enroll))
+      .thenReturn(toThis)
+  }
+}