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Commit c2379016 authored by Pranav Madapurmath's avatar Pranav Madapurmath Committed by Automerger Merge Worker
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Resolve cross account user icon validation. am: 7c87253b am: 9fa012fa am: f12187ff 

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/services/Telecomm/+/31157119



Change-Id: I45e9eb4b5f0c73f0a6b13bf2743058d405f4a883
Signed-off-by: default avatarAutomerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
parents a30923e7 f12187ff

src/com/android/server/telecom/TelecomServiceImpl.java

+8 −9
Original line number Diff line number Diff line
@@ -55,6 +55,7 @@ import android.provider.Settings; 
import android.telecom.Log;

import android.telecom.PhoneAccount;

import android.telecom.PhoneAccountHandle;

import android.telecom.StatusHints;

import android.telecom.TelecomAnalytics;

import android.telecom.TelecomManager;

import android.telecom.VideoProfile;
@@ -2764,11 +2765,10 @@ public class TelecomServiceImpl { 
        // incompatible types.

        if (icon != null && (icon.getType() == Icon.TYPE_URI

                || icon.getType() == Icon.TYPE_URI_ADAPTIVE_BITMAP)) {

            String encodedUser = icon.getUri().getEncodedUserInfo();

            // If there is no encoded user, the URI is calling into the calling user space

            if (encodedUser != null) {

                int userId = Integer.parseInt(encodedUser);

                if (userId != UserHandle.getUserId(Binder.getCallingUid())) {

            int callingUserId = UserHandle.getCallingUserId();

            int requestingUserId = StatusHints.getUserIdFromAuthority(

                    icon.getUri().getAuthority(), callingUserId);

            if(callingUserId != requestingUserId) {

                // If we are transcending the profile boundary, throw an error.

                throw new IllegalArgumentException("Attempting to register a phone account with"

                        + " an image icon belonging to another user.");
@@ -2776,4 +2776,3 @@ public class TelecomServiceImpl { 
        }

    }

}
 
}

tests/src/com/android/server/telecom/tests/TelecomServiceImplTest.java

+14 −0
Original line number Diff line number Diff line
@@ -632,6 +632,20 @@ public class TelecomServiceImplTest extends TelecomTestCase { 
        // This should fail; security exception will be thrown.

        registerPhoneAccountTestHelper(phoneAccount, false);



        icon = Icon.createWithContentUri(

                new Uri.Builder().scheme("content")

                        .encodedAuthority("10%40media")

                        .path("external/images/media/${mediaId.text}".trim())

                        .build());

        phoneAccount = makePhoneAccount(phHandle).setIcon(icon).build();

        // This should fail; security exception will be thrown

        registerPhoneAccountTestHelper(phoneAccount, false);



        icon = Icon.createWithContentUri( Uri.parse("content://10%40play.ground"));

        phoneAccount = makePhoneAccount(phHandle).setIcon(icon).build();

        // This should fail; security exception will be thrown

        registerPhoneAccountTestHelper(phoneAccount, false);



        icon = Icon.createWithContentUri("content://0@media/external/images/media/");

        phoneAccount = makePhoneAccount(phHandle).setIcon(icon).build();

        // This should succeed.