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Commit 7e1519f6 authored by TreeHugger Robot's avatar TreeHugger Robot Committed by Android (Google) Code Review
Browse files

Merge "Guard getImeiForSubscriber behind new device ID requirements" into qt-dev

parents de030109 2d992284

src/java/com/android/internal/telephony/PhoneSubInfoController.java

+12 −4
Original line number Diff line number Diff line
@@ -63,7 +63,7 @@ public class PhoneSubInfoController extends IPhoneSubInfo.Stub { 
    }



    public String getDeviceIdForPhone(int phoneId, String callingPackage) {

        return callPhoneMethodForPhoneIdWithReadDeviceIdentifierCheck(phoneId, callingPackage,

        return callPhoneMethodForPhoneIdWithReadDeviceIdentifiersCheck(phoneId, callingPackage,

                "getDeviceId", (phone)-> phone.getDeviceId());

    }
@@ -73,8 +73,8 @@ public class PhoneSubInfoController extends IPhoneSubInfo.Stub { 
    }



    public String getImeiForSubscriber(int subId, String callingPackage) {

        return callPhoneMethodForSubIdWithReadCheck(subId, callingPackage, "getImei",

                (phone)-> phone.getImei());

        return callPhoneMethodForSubIdWithReadDeviceIdentifiersCheck(subId, callingPackage,

                "getImei", (phone)-> phone.getImei());

    }



    public ImsiEncryptionInfo getCarrierInfoForImsiEncryption(int subId, int keyType,
@@ -397,6 +397,14 @@ public class PhoneSubInfoController extends IPhoneSubInfo.Stub { 
                                aContext, aSubId, aCallingPackage, aMessage));

    }



    private <T> T callPhoneMethodForSubIdWithReadDeviceIdentifiersCheck(int subId,

            String callingPackage, String message, CallPhoneMethodHelper<T> callMethodHelper) {

        return callPhoneMethodWithPermissionCheck(subId, callingPackage, message, callMethodHelper,

                (aContext, aSubId, aCallingPackage, aMessage)->

                        TelephonyPermissions.checkCallingOrSelfReadDeviceIdentifiers(

                                aContext, aSubId, aCallingPackage, aMessage));

    }



    private <T> T callPhoneMethodForSubIdWithReadSubscriberIdentifiersCheck(int subId,

            String callingPackage, String message, CallPhoneMethodHelper<T> callMethodHelper) {

        return callPhoneMethodWithPermissionCheck(subId, callingPackage, message, callMethodHelper,
@@ -432,7 +440,7 @@ public class PhoneSubInfoController extends IPhoneSubInfo.Stub { 
                                aContext, aSubId, aCallingPackage, aMessage));

    }



    private <T> T callPhoneMethodForPhoneIdWithReadDeviceIdentifierCheck(int phoneId,

    private <T> T callPhoneMethodForPhoneIdWithReadDeviceIdentifiersCheck(int phoneId,

            String callingPackage, String message, CallPhoneMethodHelper<T> callMethodHelper) {

        // Getting subId before doing permission check.

        if (!SubscriptionManager.isValidPhoneId(phoneId)) {

tests/telephonytests/src/com/android/internal/telephony/PhoneSubInfoControllerTest.java

+40 −12
Original line number Diff line number Diff line
@@ -34,7 +34,6 @@ import android.test.suitebuilder.annotation.SmallTest; 
import org.junit.After;

import org.junit.Assert;

import org.junit.Before;

import org.junit.Ignore;

import org.junit.Test;

import org.mockito.Mock;
@@ -63,6 +62,14 @@ public class PhoneSubInfoControllerTest extends TelephonyTest { 


        mPhoneSubInfoControllerUT = new PhoneSubInfoController(mContext,

                new Phone[]{mPhone, mSecondPhone});



        setupMocksForTelephonyPermissions();

        // TelephonyPermissions will query the READ_DEVICE_IDENTIFIERS op from AppOpManager to

        // determine if the calling package should be granted access to device identifiers. To

        // ensure this appop does not interfere with any of the tests always return its default

        // value.

        doReturn(AppOpsManager.MODE_ERRORED).when(mAppOsMgr).noteOpNoThrow(

                eq(AppOpsManager.OPSTR_READ_DEVICE_IDENTIFIERS), anyInt(), eq(TAG));

    }



    @After
@@ -82,8 +89,6 @@ public class PhoneSubInfoControllerTest extends TelephonyTest { 


    @Test

    @SmallTest

    @Ignore("Temporarily ignoring until original device identifier access behavior is restored "

            + "under b/117781266")

    public void testGetDeviceIdWithOutPermission() {

        // The READ_PRIVILEGED_PHONE_STATE permission or passing a device / profile owner access

        // check is required to access device identifiers. Since neither of those are true for this
@@ -189,7 +194,6 @@ public class PhoneSubInfoControllerTest extends TelephonyTest { 
        mContextFixture.addCallingOrSelfPermission(READ_PHONE_STATE);

        doReturn(AppOpsManager.MODE_ERRORED).when(mAppOsMgr).noteOp(

                eq(AppOpsManager.OP_READ_PHONE_STATE), anyInt(), eq(TAG));



        assertNull(mPhoneSubInfoControllerUT.getNaiForSubscriber(0, TAG));

        assertNull(mPhoneSubInfoControllerUT.getNaiForSubscriber(1, TAG));
@@ -214,6 +218,9 @@ public class PhoneSubInfoControllerTest extends TelephonyTest { 
    @Test

    @SmallTest

    public void testGetImeiWithOutPermission() {

        // The READ_PRIVILEGED_PHONE_STATE permission, carrier privileges, or passing a device /

        // profile owner access check is required to access device identifiers. Since none of

        // those are true for this test each case will result in a SecurityException being thrown.

        doReturn("990000862471854").when(mPhone).getImei();

        doReturn("990000862471855").when(mSecondPhone).getImei();
@@ -239,16 +246,41 @@ public class PhoneSubInfoControllerTest extends TelephonyTest { 
        mContextFixture.addCallingOrSelfPermission(READ_PHONE_STATE);

        doReturn(AppOpsManager.MODE_ERRORED).when(mAppOsMgr).noteOp(

                eq(AppOpsManager.OP_READ_PHONE_STATE), anyInt(), eq(TAG));

        try {

            mPhoneSubInfoControllerUT.getImeiForSubscriber(0, TAG);

            Assert.fail("expected Security Exception Thrown");

        } catch (Exception ex) {

            assertTrue(ex instanceof SecurityException);

            assertTrue(ex.getMessage().contains("getImei"));

        }



        assertNull(mPhoneSubInfoControllerUT.getImeiForSubscriber(0, TAG));

        assertNull(mPhoneSubInfoControllerUT.getImeiForSubscriber(1, TAG));

        try {

            mPhoneSubInfoControllerUT.getImeiForSubscriber(1, TAG);

            Assert.fail("expected Security Exception Thrown");

        } catch (Exception ex) {

            assertTrue(ex instanceof SecurityException);

            assertTrue(ex.getMessage().contains("getImei"));

        }



        //case 3: no READ_PRIVILEGED_PHONE_STATE

        mContextFixture.addCallingOrSelfPermission(READ_PHONE_STATE);

        doReturn(AppOpsManager.MODE_ALLOWED).when(mAppOsMgr).noteOp(

                eq(AppOpsManager.OP_READ_PHONE_STATE), anyInt(), eq(TAG));

        assertEquals("990000862471854", mPhoneSubInfoControllerUT.getImeiForSubscriber(0, TAG));

        assertEquals("990000862471855", mPhoneSubInfoControllerUT.getImeiForSubscriber(1, TAG));

        try {

            mPhoneSubInfoControllerUT.getImeiForSubscriber(0, TAG);

            Assert.fail("expected Security Exception Thrown");

        } catch (Exception ex) {

            assertTrue(ex instanceof SecurityException);

            assertTrue(ex.getMessage().contains("getImei"));

        }



        try {

            mPhoneSubInfoControllerUT.getImeiForSubscriber(1, TAG);

            Assert.fail("expected Security Exception Thrown");

        } catch (Exception ex) {

            assertTrue(ex instanceof SecurityException);

            assertTrue(ex.getMessage().contains("getImei"));

        }

    }



    @Test
@@ -316,8 +348,6 @@ public class PhoneSubInfoControllerTest extends TelephonyTest { 


    @Test

    @SmallTest

    @Ignore("Temporarily ignoring until original device identifier access behavior is restored "

            + "under b/117781266")

    public void testGetSubscriberIdWithOutPermission() {

        // The READ_PRIVILEGED_PHONE_STATE permission, carrier privileges, or passing a device /

        // profile owner access check is required to access subscriber identifiers. Since none of
@@ -400,8 +430,6 @@ public class PhoneSubInfoControllerTest extends TelephonyTest { 


    @Test

    @SmallTest

    @Ignore("Temporarily ignoring until original device identifier access behavior is restored "

            + "under b/117781266")

    public void testGetIccSerialNumberWithOutPermission() {

        // The READ_PRIVILEGED_PHONE_STATE permission, carrier privileges, or passing a device /

        // profile owner access check is required to access subscriber identifiers. Since none of

tests/telephonytests/src/com/android/internal/telephony/TelephonyTest.java

+67 −0
Original line number Diff line number Diff line
@@ -33,8 +33,10 @@ import android.content.Context; 
import android.content.IIntentSender;

import android.content.Intent;

import android.content.SharedPreferences;

import android.content.pm.ApplicationInfo;

import android.content.pm.PackageInfo;

import android.content.pm.PackageManager;

import android.os.Build;

import android.os.Bundle;

import android.os.Handler;

import android.os.IBinder;
@@ -43,6 +45,7 @@ import android.os.Looper; 
import android.os.RegistrantList;

import android.os.ServiceManager;

import android.provider.BlockedNumberContract;

import android.provider.DeviceConfig;

import android.provider.Settings;

import android.telephony.AccessNetworkConstants;

import android.telephony.NetworkRegistrationInfo;
@@ -186,6 +189,8 @@ public abstract class TelephonyTest { 
    @Mock

    protected PackageInfo mPackageInfo;

    @Mock

    protected ApplicationInfo mApplicationInfo;

    @Mock

    protected EriManager mEriManager;

    @Mock

    protected IBinder mConnMetLoggerBinder;
@@ -607,6 +612,36 @@ public abstract class TelephonyTest { 
        }

    }



    public static class FakeSettingsConfigProvider extends MockContentProvider {

        private static final String PROPERTY_DEVICE_IDENTIFIER_ACCESS_RESTRICTIONS_DISABLED =

                DeviceConfig.NAMESPACE_PRIVACY + "/"

                        + "device_identifier_access_restrictions_disabled";



        @Override

        public Bundle call(String method, String arg, Bundle extras) {

            switch (method) {

                case Settings.CALL_METHOD_GET_CONFIG: {

                    switch (arg) {

                        case PROPERTY_DEVICE_IDENTIFIER_ACCESS_RESTRICTIONS_DISABLED: {

                            Bundle bundle = new Bundle();

                            bundle.putString(

                                    PROPERTY_DEVICE_IDENTIFIER_ACCESS_RESTRICTIONS_DISABLED,

                                    "0");

                            return bundle;

                        }

                        default: {

                            fail("arg not expected: " + arg);

                        }

                    }

                    break;

                }

                default:

                    fail("Method not expected: " + method);

            }

            return null;

        }

    }



    protected void setupMockPackagePermissionChecks() throws Exception {

        doReturn(new String[]{TAG}).when(mPackageManager).getPackagesForUid(anyInt());

        doReturn(mPackageInfo).when(mPackageManager).getPackageInfo(eq(TAG), anyInt());
@@ -614,6 +649,38 @@ public abstract class TelephonyTest { 
                eq(TAG), anyInt(), anyInt());

    }



    protected void setupMocksForTelephonyPermissions() throws Exception {

        // If the calling package does not meet the new requirements for device identifier access

        // TelephonyPermissions will query the PackageManager for the ApplicationInfo of the package

        // to determine the target SDK. For apps targeting Q a SecurityException is thrown

        // regardless of if the package satisfies the previous requirements for device ID access.

        mApplicationInfo.targetSdkVersion = Build.VERSION_CODES.Q;

        doReturn(mApplicationInfo).when(mPackageManager).getApplicationInfoAsUser(eq(TAG), anyInt(),

                anyInt());



        // TelephonyPermissions queries DeviceConfig to determine if the identifier access

        // restrictions should be enabled; this results in a NPE when DeviceConfig uses

        // Activity.currentActivity.getContentResolver as the resolver for Settings.Config.getString

        // since the IContentProvider in the NameValueCache's provider holder is null.

        Class c = Class.forName("android.provider.Settings$Config");

        Field field = c.getDeclaredField("sNameValueCache");

        field.setAccessible(true);

        Object cache = field.get(null);



        c = Class.forName("android.provider.Settings$NameValueCache");

        field = c.getDeclaredField("mProviderHolder");

        field.setAccessible(true);

        Object providerHolder = field.get(cache);



        FakeSettingsConfigProvider fakeSettingsProvider = new FakeSettingsConfigProvider();

        field = MockContentProvider.class.getDeclaredField("mIContentProvider");

        field.setAccessible(true);

        Object iContentProvider = field.get(fakeSettingsProvider);



        replaceInstance(Class.forName("android.provider.Settings$ContentProviderHolder"),

                "mContentProvider", providerHolder, iContentProvider);

    }



    protected final void waitForHandlerAction(Handler h, long timeoutMillis) {

        final CountDownLatch lock = new CountDownLatch(1);

        h.post(lock::countDown);