154aa6d63Sopenharmony_ci/*
254aa6d63Sopenharmony_ci * Copyright (c) 2024-2024 Huawei Device Co., Ltd.
354aa6d63Sopenharmony_ci * Licensed under the Apache License, Version 2.0 (the "License");
454aa6d63Sopenharmony_ci * you may not use this file except in compliance with the License.
554aa6d63Sopenharmony_ci * You may obtain a copy of the License at
654aa6d63Sopenharmony_ci *
754aa6d63Sopenharmony_ci *     http://www.apache.org/licenses/LICENSE-2.0
854aa6d63Sopenharmony_ci *
954aa6d63Sopenharmony_ci * Unless required by applicable law or agreed to in writing, software
1054aa6d63Sopenharmony_ci * distributed under the License is distributed on an "AS IS" BASIS,
1154aa6d63Sopenharmony_ci * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
1254aa6d63Sopenharmony_ci * See the License for the specific language governing permissions and
1354aa6d63Sopenharmony_ci * limitations under the License.
1454aa6d63Sopenharmony_ci */
1554aa6d63Sopenharmony_ci#ifndef SIGNATRUETOOLS_DATASOURCE_H
1654aa6d63Sopenharmony_ci#define SIGNATRUETOOLS_DATASOURCE_H
1754aa6d63Sopenharmony_ci
1854aa6d63Sopenharmony_ci#include "byte_buffer.h"
1954aa6d63Sopenharmony_ci#include "verify_hap_openssl_utils.h"
2054aa6d63Sopenharmony_ci
2154aa6d63Sopenharmony_cinamespace OHOS {
2254aa6d63Sopenharmony_cinamespace SignatureTools {
2354aa6d63Sopenharmony_ci
2454aa6d63Sopenharmony_ciclass DataSource {
2554aa6d63Sopenharmony_cipublic:
2654aa6d63Sopenharmony_ci    virtual bool HasRemaining() const = 0;
2754aa6d63Sopenharmony_ci    virtual int64_t Remaining() const = 0;
2854aa6d63Sopenharmony_ci    virtual void Reset() = 0;
2954aa6d63Sopenharmony_ci    virtual bool ReadDataAndDigestUpdate(const DigestParameter& digestParam, int32_t chunkSize) = 0;
3054aa6d63Sopenharmony_ci
3154aa6d63Sopenharmony_ci    virtual ~DataSource()
3254aa6d63Sopenharmony_ci    {
3354aa6d63Sopenharmony_ci    }
3454aa6d63Sopenharmony_ci};
3554aa6d63Sopenharmony_ci} // namespace SignatureTools
3654aa6d63Sopenharmony_ci} // namespace OHOS
3754aa6d63Sopenharmony_ci#endif // SIGNATRUETOOLS_DATASOURCE_H
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