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/*
* Copyright (C) 2021 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 android.security.cts.cve_2021_0586;
import static androidx.test.core.app.ApplicationProvider.getApplicationContext;
import static androidx.test.platform.app.InstrumentationRegistry.getInstrumentation;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.fail;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.net.Uri;
import androidx.test.runner.AndroidJUnit4;
import androidx.test.uiautomator.By;
import androidx.test.uiautomator.BySelector;
import androidx.test.uiautomator.UiDevice;
import androidx.test.uiautomator.Until;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import java.io.IOException;
import java.util.regex.Pattern;
@RunWith(AndroidJUnit4.class)
public class DeviceTest {
private static final String TEST_PKG = "android.security.cts.cve_2021_0586";
private static final int LAUNCH_TIMEOUT_MS = 20000;
private Pattern overlayTextPattern;
private UiDevice mDevice;
String activityDump = "";
public void startDevicePickerActivity() {
Context context = getApplicationContext();
Intent sharingIntent = new Intent(Intent.ACTION_SEND);
assertNotNull(sharingIntent);
sharingIntent.setType("image/*");
sharingIntent.setPackage("com.android.bluetooth");
Uri uri = Uri.parse("android.resource://android.security.cts.CVE_2021_0586"
+ "/drawable/cve_2021_0586.png");
assertNotNull(uri);
sharingIntent.putExtra(Intent.EXTRA_STREAM, uri);
Intent intent = Intent.createChooser(sharingIntent, "Share image");
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(intent);
}
@Before
public void startMainActivityFromHomeScreen() {
mDevice = UiDevice.getInstance(getInstrumentation());
Context context = getApplicationContext();
assertNotNull(context);
PackageManager packageManager = context.getPackageManager();
assertNotNull(packageManager);
final Intent intent = packageManager.getLaunchIntentForPackage(TEST_PKG);
assertNotNull(intent);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
/* Start the launcher activity */
context.startActivity(intent);
overlayTextPattern = Pattern.compile(
getApplicationContext().getResources().getString(R.string.overlay_button),
Pattern.CASE_INSENSITIVE);
}
@Test
public void testOverlayButtonPresence() {
/* Wait for the overlay window */
if (!mDevice.wait(Until.hasObject(By.text(overlayTextPattern)), LAUNCH_TIMEOUT_MS)) {
return;
}
/* Start the DevicePickerActivity */
startDevicePickerActivity();
/* Wait until the object of launcher activity is gone */
if (mDevice.wait(Until.gone(By.pkg(TEST_PKG)), LAUNCH_TIMEOUT_MS)) {
return;
}
/* Check if the currently running activity is DevicePickerActivity */
try {
activityDump = mDevice.executeShellCommand("dumpsys activity");
} catch (IOException e) {
throw new RuntimeException("Could not execute dumpsys activity command");
}
Pattern activityPattern = Pattern.compile("mResumedActivity.*DevicePickerActivity.*\n");
if (!activityPattern.matcher(activityDump).find()) {
return;
}
/* Failing the test as fix is not present */
String message = "Device is vulnerable to b/182584940 hence any app with "
+ "SYSTEM_ALERT_WINDOW can overlay the Bluetooth DevicePickerActivity screen";
fail(message);
}
}
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