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VpnSettings stub unit tests

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For:
 - enforcing minimum target SDK
 - enforcing that only actual vpn apps are shown

Bug: 30355704
Change-Id: I4fcbea8ce0d0417c089a637d999ea83299cea5d0
This commit is contained in:
Robin Lee
2016-07-27 14:46:13 +01:00
parent 0dc7a13a5e
commit 490849b391
2 changed files with 131 additions and 23 deletions
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46
src/com/android/settings/vpn2/AppManagementFragment.java
View File

@@ -15,12 +15,14 @@
*/
package com.android.settings.vpn2;
import android.annotation.NonNull;
import android.app.AlertDialog;
import android.app.AppOpsManager;
import android.app.Dialog;
import android.app.DialogFragment;
import android.content.Context;
import android.content.DialogInterface;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
@@ -33,12 +35,13 @@ import android.provider.Settings;
import android.support.v7.preference.Preference;
import android.util.Log;
import com.android.internal.annotations.VisibleForTesting;
import com.android.internal.logging.MetricsProto.MetricsEvent;
import com.android.internal.net.VpnConfig;
import com.android.internal.util.ArrayUtils;
import com.android.settings.R;
import com.android.settings.SettingsPreferenceFragment;
import com.android.settings.Utils;
import com.android.settingslib.RestrictedLockUtils;
import com.android.settingslib.RestrictedSwitchPreference;
import com.android.settingslib.RestrictedPreference;
@@ -57,13 +60,11 @@ public class AppManagementFragment extends SettingsPreferenceFragment
private static final String KEY_ALWAYS_ON_VPN = "always_on_vpn";
private static final String KEY_FORGET_VPN = "forget_vpn";
private AppOpsManager mAppOpsManager;
private PackageManager mPackageManager;
private ConnectivityManager mConnectivityManager;
// VPN app info
private final int mUserId = UserHandle.myUserId();
private int mPackageUid;
private String mPackageName;
private PackageInfo mPackageInfo;
private String mVpnLabel;
@@ -105,7 +106,6 @@ public class AppManagementFragment extends SettingsPreferenceFragment
addPreferencesFromResource(R.xml.vpn_app_management);
mPackageManager = getContext().getPackageManager();
mAppOpsManager = getContext().getSystemService(AppOpsManager.class);
mConnectivityManager = getContext().getSystemService(ConnectivityManager.class);
mPreferenceVersion = findPreference(KEY_VERSION);
@@ -199,20 +199,18 @@ public class AppManagementFragment extends SettingsPreferenceFragment
isEnabled ? mPackageName : null, /* lockdownEnabled */ false);
}
private boolean checkTargetVersion() {
if (mPackageInfo == null || mPackageInfo.applicationInfo == null) {
return true;
}
final int targetSdk = mPackageInfo.applicationInfo.targetSdkVersion;
if (targetSdk >= Build.VERSION_CODES.N) {
return true;
}
@VisibleForTesting
static boolean isAlwaysOnSupportedByApp(@NonNull ApplicationInfo appInfo) {
final int targetSdk = appInfo.targetSdkVersion;
if (targetSdk < Build.VERSION_CODES.N) {
if (Log.isLoggable(TAG, Log.DEBUG)) {
Log.d(TAG, "Package " + mPackageName + " targets SDK version " + targetSdk + "; must"
+ " target at least " + Build.VERSION_CODES.N + " to use always-on.");
Log.d(TAG, "Package " + appInfo.packageName + " targets SDK version: " + targetSdk
+ "; must target at least " + Build.VERSION_CODES.N + " to use always-on.");
}
return false;
}
return true;
}
private void updateUI() {
if (isAdded()) {
@@ -228,7 +226,7 @@ public class AppManagementFragment extends SettingsPreferenceFragment
mPreferenceForget.checkRestrictionAndSetDisabled(UserManager.DISALLOW_CONFIG_VPN,
mUserId);
if (checkTargetVersion()) {
if (isAlwaysOnSupportedByApp(mPackageInfo.applicationInfo)) {
// setSummary doesn't override the admin message when user restriction is applied
mPreferenceAlwaysOn.setSummary(null);
// setEnabled is not required here, as checkRestrictionAndSetDisabled
@@ -266,7 +264,6 @@ public class AppManagementFragment extends SettingsPreferenceFragment
}
try {
mPackageUid = mPackageManager.getPackageUid(mPackageName, /* PackageInfoFlags */ 0);
mPackageInfo = mPackageManager.getPackageInfo(mPackageName, /* PackageInfoFlags */ 0);
mVpnLabel = VpnConfig.getVpnLabel(getPrefContext(), mPackageName).toString();
} catch (NameNotFoundException nnfe) {
@@ -274,7 +271,11 @@ public class AppManagementFragment extends SettingsPreferenceFragment
return false;
}
if (!isVpnActivated()) {
if (mPackageInfo.applicationInfo == null) {
Log.e(TAG, "package does not include an application");
return false;
}
if (!appHasVpnPermission(getContext(), mPackageInfo.applicationInfo)) {
Log.e(TAG, "package didn't register VPN profile");
return false;
}
@@ -282,10 +283,13 @@ public class AppManagementFragment extends SettingsPreferenceFragment
return true;
}
private boolean isVpnActivated() {
final List<AppOpsManager.PackageOps> apps = mAppOpsManager.getOpsForPackage(mPackageUid,
mPackageName, new int[]{OP_ACTIVATE_VPN});
return apps != null && apps.size() > 0 && apps.get(0) != null;
@VisibleForTesting
static boolean appHasVpnPermission(Context context, @NonNull ApplicationInfo application) {
final AppOpsManager service =
(AppOpsManager) context.getSystemService(Context.APP_OPS_SERVICE);
final List<AppOpsManager.PackageOps> ops = service.getOpsForPackage(application.uid,
application.packageName, new int[]{OP_ACTIVATE_VPN});
return !ArrayUtils.isEmpty(ops);
}
private boolean isLegacyVpnLockDownOrAnotherPackageAlwaysOn() {

104
tests/unit/src/com/android/settings/vpn2/AppSettingsTest.java Normal file
View File

@@ -0,0 +1,104 @@
/*
* Copyright (C) 2016 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.vpn2;
import static com.android.settings.vpn2.AppManagementFragment.isAlwaysOnSupportedByApp;
import static com.android.settings.vpn2.AppManagementFragment.appHasVpnPermission;
import static org.mockito.Mockito.*;
import android.app.AppOpsManager;
import android.content.pm.ApplicationInfo;
import android.os.Build;
import android.os.Process;
import android.test.AndroidTestCase;
import android.test.suitebuilder.annotation.SmallTest;
import android.content.Context;
import java.util.Arrays;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;
public class AppSettingsTest extends AndroidTestCase {
private static final String TAG = AppSettingsTest.class.getSimpleName();
@Mock private Context mContext;
@Mock private AppOpsManager mAppOps;
@Override
public void setUp() throws Exception {
MockitoAnnotations.initMocks(this);
when(mContext.getSystemService(eq(Context.APP_OPS_SERVICE))).thenReturn(mAppOps);
}
@SmallTest
public void testAlwaysOnVersionRestriction() {
ApplicationInfo mockApp = createMockApp();
// API 23 (MNC) = not supported
mockApp.targetSdkVersion = Build.VERSION_CODES.M;
assertFalse(isAlwaysOnSupportedByApp(mockApp));
// API 24 (NYC) = supported
mockApp.targetSdkVersion = Build.VERSION_CODES.N;
assertTrue(isAlwaysOnSupportedByApp(mockApp));
// API 25 (NYC MR1) = supported
mockApp.targetSdkVersion = Build.VERSION_CODES.N_MR1;
assertTrue(isAlwaysOnSupportedByApp(mockApp));
}
@SmallTest
public void testAppOpsRequiredToOpenFragment() {
ApplicationInfo mockApp = createMockApp();
final AppOpsManager.PackageOps[] blankOps = {
new AppOpsManager.PackageOps(mockApp.packageName, mockApp.uid, new ArrayList<>()),
new AppOpsManager.PackageOps(mockApp.packageName, mockApp.uid, new ArrayList<>())
};
// List with one package op
when(mAppOps.getOpsForPackage(eq(mockApp.uid), eq(mockApp.packageName), any()))
.thenReturn(Arrays.asList(new AppOpsManager.PackageOps[] {blankOps[0]}));
assertTrue(appHasVpnPermission(mContext, mockApp));
// List with more than one package op
when(mAppOps.getOpsForPackage(eq(mockApp.uid), eq(mockApp.packageName), any()))
.thenReturn(Arrays.asList(blankOps));
assertTrue(appHasVpnPermission(mContext, mockApp));
// Empty list
when(mAppOps.getOpsForPackage(eq(mockApp.uid), eq(mockApp.packageName), any()))
.thenReturn(Collections.emptyList());
assertFalse(appHasVpnPermission(mContext, mockApp));
// Null list (may be returned in place of an empty list)
when(mAppOps.getOpsForPackage(eq(mockApp.uid), eq(mockApp.packageName), any()))
.thenReturn(null);
assertFalse(appHasVpnPermission(mContext, mockApp));
}
private static ApplicationInfo createMockApp() {
final ApplicationInfo app = new ApplicationInfo();
app.packageName = "com.example.mockvpn";
app.uid = Process.FIRST_APPLICATION_UID;
return app;
}
}