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Commit 97961294 authored by Dmitry Dementyev's avatar Dmitry Dementyev Committed by Anis Assi
Browse files

Ignore GrantCredentials call with unexpected calling uid. 

Activity can be used only in two cases.
1) Calling uid matches uid grantee.
2) Calling uid is is system. This flow is used by getToken methods with
notifyAuthFailure=true.

Test: Existing CTS tests
Bug: 158480899
Merged-In: I1421c333b6cebb4f7cddcdd8766298f6872e933b
Change-Id: I18af48cf3cb4ad23a3e5b02a8ea1416aa5570dba
(cherry picked from commit ece586e3)
parent 5f77856b

core/java/android/accounts/GrantCredentialsPermissionActivity.java

+28 −6
Original line number Diff line number Diff line
@@ -16,16 +16,23 @@ 
package android.accounts;



import android.app.Activity;

import android.content.res.Resources;

import android.os.Bundle;

import android.widget.TextView;

import android.widget.LinearLayout;

import android.view.View;

import android.view.LayoutInflater;

import android.app.ActivityManager;

import android.content.Context;

import android.content.Intent;

import android.content.pm.PackageManager;

import android.content.res.Resources;

import android.os.Bundle;

import android.os.IBinder;

import android.os.Process;

import android.os.RemoteException;

import android.os.UserHandle;

import android.text.TextUtils;

import android.util.Log;

import android.view.LayoutInflater;

import android.view.View;

import android.widget.LinearLayout;

import android.widget.TextView;



import com.android.internal.R;



import java.io.IOException;
@@ -42,6 +49,7 @@ public class GrantCredentialsPermissionActivity extends Activity implements View 
    private Account mAccount;

    private String mAuthTokenType;

    private int mUid;

    private int mCallingUid;

    private Bundle mResultBundle = null;

    protected LayoutInflater mInflater;
@@ -77,6 +85,20 @@ public class GrantCredentialsPermissionActivity extends Activity implements View 
            return;

        }



        try {

            IBinder activityToken = getActivityToken();

            mCallingUid = ActivityManager.getService().getLaunchedFromUid(activityToken);

        } catch (RemoteException re) {

            // Couldn't figure out caller details

            Log.w(getClass().getSimpleName(), "Unable to get caller identity \n" + re);

        }



        if (!UserHandle.isSameApp(mCallingUid, Process.SYSTEM_UID) && mCallingUid != mUid) {

            setResult(Activity.RESULT_CANCELED);

            finish();

            return;

        }



        String accountTypeLabel;

        try {

            accountTypeLabel = getAccountLabel(mAccount);