1 /*
2  * Copyright (c) 2021 Huawei Device Co., Ltd.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at
6  *
7  *     http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 
16 #ifndef ZIP_ADAPTER_H
17 #define ZIP_ADAPTER_H
18 #include <iostream>
19 #include <vector>
20 #include "deflate_adapter.h"
21 #include "diffpatch.h"
22 #include "pkg_manager.h"
23 #include "securec.h"
24 #include "zlib.h"
25 
26 namespace UpdatePatch {
27 class ZipAdapter : public DeflateAdapter {
28 public:
29     ZipAdapter(UpdatePatchWriterPtr outStream, size_t offset, const Hpackage::PkgManager::FileInfoPtr fileInfo);
~ZipAdapter()30     ~ZipAdapter() override
31     {
32         Close();
33     }
34 
35     int32_t Open() override;
36     int32_t Close() override;
37 
38     int32_t WriteData(const BlockBuffer &srcData) override;
39     int32_t FlushData(size_t &offset) override;
40 private:
41     std::vector<uint8_t> buffer_ {};
42     UpdatePatchWriterPtr outStream_;
43     z_stream zstream_ {0};
44     size_t offset_;
45 
46     int32_t level_ {0};
47     int32_t method_ {0};
48     int32_t windowBits_ {0};
49     int32_t memLevel_ {0};
50     int32_t strategy_ {0};
51 };
52 } // namespace UpdatePatch
53 #endif // ZIP_ADAPTER_H
54