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 package com.example.android.autofill.service.data.source;
17 
18 public interface PackageVerificationDataSource {
19 
20     /**
21      * Verifies that the signatures in the passed {@code Context} match what is currently in
22      * storage. If there are no current signatures in storage for this packageName, it will store
23      * the signatures from the passed {@code Context}.
24      *
25      * @return {@code true} if signatures for this packageName are not currently in storage
26      * or if the signatures in the passed {@code Context} match what is currently in storage;
27      * {@code false} if the signatures in the passed {@code Context} do not match what is
28      * currently in storage or if an {@code Exception} was thrown while generating the signatures.
29      */
putPackageSignatures(String packageName)30     boolean putPackageSignatures(String packageName);
31 
32     /**
33      * Clears all signature data currently in storage.
34      */
clear()35     void clear();
36 }
37