Home | History | Annotate | Download | only in jobperm 
      1 /*
      2  * Copyright (C) 2017 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package android.jobscheduler.cts.jobperm;
     18 
     19 import android.annotation.NonNull;
     20 import android.annotation.Nullable;
     21 import android.content.ContentProvider;
     22 import android.content.ContentValues;
     23 import android.content.Intent;
     24 import android.database.Cursor;
     25 import android.net.Uri;
     26 import android.os.Bundle;
     27 import android.os.ParcelFileDescriptor;
     28 
     29 import java.io.File;
     30 import java.io.FileNotFoundException;
     31 
     32 /**
     33  * Empty content provider, all permissions are enforced in manifest
     34  */
     35 public class JobPermProvider extends ContentProvider {
     36     @Override
     37     public Bundle call(@NonNull String method, @Nullable String arg, @Nullable Bundle extras) {
     38         if (method == null) {
     39             return null;
     40         }
     41         switch (method) {
     42             case "grant": {
     43                 Uri uri = extras.getParcelable("uri");
     44                 getContext().grantUriPermission(arg, uri,
     45                         Intent.FLAG_GRANT_READ_URI_PERMISSION |
     46                                 Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
     47                 return null;
     48             }
     49             case "revoke": {
     50                 Uri uri = extras.getParcelable("uri");
     51                 getContext().revokeUriPermission(arg, uri,
     52                         Intent.FLAG_GRANT_READ_URI_PERMISSION |
     53                                 Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
     54                 return null;
     55 
     56             }
     57         }
     58         return super.call(method, arg, extras);
     59     }
     60 
     61     @Override
     62     public int delete(Uri uri, String selection, String[] selectionArgs) {
     63         // do nothing
     64         return 0;
     65     }
     66 
     67     @Override
     68     public String getType(Uri uri) {
     69         return "got/theMIME";
     70     }
     71 
     72     @Override
     73     public Uri insert(Uri uri, ContentValues values) {
     74         return null;
     75     }
     76 
     77     @Override
     78     public boolean onCreate() {
     79         return false;
     80     }
     81 
     82     @Override
     83     public Cursor query(Uri uri, String[] projection, String selection,
     84             String[] selectionArgs, String sortOrder) {
     85         return null;
     86     }
     87 
     88     @Override
     89     public int update(Uri uri, ContentValues values, String selection,
     90             String[] selectionArgs) {
     91         return 0;
     92     }
     93 
     94     @Override
     95     public ParcelFileDescriptor openFile(Uri uri, String mode) throws FileNotFoundException {
     96         return ParcelFileDescriptor.open(
     97                 new File("/dev/null"), ParcelFileDescriptor.MODE_READ_ONLY);
     98     }
     99 }
    100