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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 PKG_MANAGER_H
17 #define PKG_MANAGER_H
18 
19 #include <cstdlib>
20 #include <cstdio>
21 #include <functional>
22 #include <iostream>
23 #include <memory>
24 #include <vector>
25 #include "ring_buffer/ring_buffer.h"
26 #include "package/package.h"
27 #include "pkg_info_utils.h"
28 
29 namespace Hpackage {
30 class PkgFile;
31 class PkgStream;
32 class PkgEntry;
33 using PkgFilePtr = PkgFile *;
34 using PkgStreamPtr = PkgStream *;
35 using PkgEntryPtr = PkgEntry *;
36 
37 struct AppPkgInfo {
38     std::string packagePath;
39     std::string pkgType;
40     std::string keyPath;
41     uint8_t type;
42 };
43 
44 /**
45  * Input and output stream definition
46  */
47 class PkgStream {
48 public:
49     enum {
50         PkgStreamType_Read = 0,     // common file reading
51         PkgStreamType_Write,        // common file writing (A new file is created and the original content is deleted.)
52         PkgStreamType_MemoryMap,    // memory mapping
53         PkgStreamType_Process,      // processing while parsing
54         PkgStreamType_Buffer,       // buffer
55         PKgStreamType_FileMap,      // file map to memory
56         PkgStreamType_FlowData,     // flow data
57     };
58 
59     virtual ~PkgStream() = default;
60 
61     /**
62      * Read files.
63      *
64      * @param buff                  buffer to hold the output file content
65      * @param start                 start position of reading
66      * @param needRead              size of the data to read
67      * @param readLen               length of the read data
68      * @return                      file reading result
69      */
70     virtual int32_t Read(PkgBuffer &data, size_t start, size_t needRead, size_t &readLen) = 0;
71 
72     /**
73      * write stream
74      *
75      * @param data                  buffer to hold the output file content
76      * @param size                  size of the data to read
77      * @param start                 start position of reading
78      * @return                      file reading result
79      */
80     virtual int32_t Write(const PkgBuffer &data, size_t size, size_t start) = 0;
81 
82     virtual int32_t Flush(size_t size) = 0;
83 
84     virtual int32_t GetBuffer(PkgBuffer &buffer) const = 0;
85 
86     virtual size_t GetFileLength() = 0;
87     virtual const std::string GetFileName() const = 0;
88     virtual int32_t GetStreamType() const = 0;
89 
90     virtual void AddRef() = 0;
91     virtual void DelRef() = 0;
92     virtual bool IsRef() const = 0;
93 
94     using ExtractFileProcessor = std::function<int(const PkgBuffer &data, size_t size, size_t start,
95         bool isFinish, const void *context)>;
96 
GetBuffer(uint8_t * & buffer,size_t & size)97     int32_t GetBuffer(uint8_t *&buffer, size_t &size)
98     {
99         PkgBuffer data = {};
100         int ret = GetBuffer(data);
101         buffer = data.buffer;
102         size = data.length;
103         return ret;
104     }
105 
GetReadOffset()106     virtual size_t GetReadOffset() const
107     {
108         return 0;
109     }
110 
Stop()111     virtual void Stop()
112     {
113         return;
114     }
115 };
116 
117 class PkgFile {
118 public:
119     enum PkgType {
120         PKG_TYPE_NONE = PKG_PACK_TYPE_NONE,
121         PKG_TYPE_UPGRADE = PKG_PACK_TYPE_UPGRADE, // 升级包
122         PKG_TYPE_ZIP = PKG_PACK_TYPE_ZIP,     // zip压缩包
123         PKG_TYPE_LZ4 = PKG_PACK_TYPE_LZ4,     // lz4压缩包
124         PKG_TYPE_GZIP = PKG_PACK_TYPE_GZIP,     // gzip压缩包
125         PKG_TYPE_MAX
126     };
127 
128     using VerifyFunction = std::function<int(const PkgInfoPtr info,
129         const std::vector<uint8_t> &digest, const std::vector<uint8_t> &signature)>;
130 
131 public:
132     virtual ~PkgFile() = default;
133 
134     virtual int32_t AddEntry(const FileInfoPtr file, const PkgStreamPtr input) = 0;
135 
136     virtual int32_t SavePackage(size_t &signOffset) = 0;
137 
138     virtual int32_t ExtractFile(const PkgEntryPtr node, const PkgStreamPtr output) = 0;
139 
140     virtual int32_t LoadPackage(std::vector<std::string> &fileNames, VerifyFunction verifier = nullptr) = 0;
141 
142     virtual int32_t ParseComponents(std::vector<std::string> &fileNames) = 0;
143 
144     virtual PkgEntryPtr FindPkgEntry(const std::string &fileName) = 0;
145 
146     virtual PkgStreamPtr GetPkgStream() const = 0;
147 
148     virtual const PkgInfo *GetPkgInfo() const = 0;
149 
150     virtual PkgType GetPkgType() const = 0;
151 
152     virtual void ClearPkgStream() = 0;
153 
154     virtual int32_t ReadImgHashDataFile(const std::string &pkgType) = 0;
155 };
156 
157 class PkgEntry {
158 public:
PkgEntry(PkgFilePtr pkgFile,uint32_t nodeId)159     PkgEntry(PkgFilePtr pkgFile, uint32_t nodeId) : nodeId_(nodeId), pkgFile_(pkgFile) {}
160 
~PkgEntry()161     virtual ~PkgEntry() {}
162 
163     virtual int32_t Init(const FileInfoPtr fileInfo, PkgStreamPtr inStream) = 0;
164 
165     virtual int32_t EncodeHeader(PkgStreamPtr inStream, size_t startOffset, size_t &encodeLen) = 0;
166 
167     virtual int32_t Pack(PkgStreamPtr inStream, size_t startOffset, size_t &encodeLen) = 0;
168 
169     virtual int32_t DecodeHeader(PkgBuffer &buffer, size_t headerOffset, size_t dataOffset,
170         size_t &decodeLen) = 0;
171 
172     virtual int32_t Unpack(PkgStreamPtr outStream) = 0;
173 
GetFileName()174     virtual const std::string GetFileName() const
175     {
176         return fileName_;
177     };
178 
179     virtual const FileInfo *GetFileInfo() const = 0;
180 
GetPkgFile()181     PkgFilePtr GetPkgFile() const
182     {
183         return pkgFile_;
184     }
185 
GetNodeId()186     uint32_t GetNodeId() const
187     {
188         return nodeId_;
189     }
190 
AddDataOffset(size_t offset)191     void AddDataOffset(size_t offset)
192     {
193         dataOffset_ += offset;
194     }
195 
GetFileNum()196     uint32_t GetFileNum()
197     {
198         return fileNum_;
199     }
200 
SetFileNum(uint32_t num)201     void SetFileNum(uint32_t num)
202     {
203         fileNum_ = num;
204     }
205 
206 protected:
207     int32_t Init(FileInfoPtr localFileInfo, const FileInfoPtr fileInfo,
208         PkgStreamPtr inStream);
209 
210 protected:
211     uint32_t nodeId_ {0};
212     PkgFilePtr pkgFile_ {nullptr};
213     size_t headerOffset_ {0};
214     size_t dataOffset_ {0};
215     std::string fileName_ {};
216     uint32_t fileNum_ = 0;
217 };
218 
219 using PkgDecodeProgress = std::function<void(int type, size_t writeDataLen, const void *context)>;
220 
221 /**
222  * Get a singleton PkgManager instance.
223  */
224 class PkgManager {
225 public:
226     using PkgManagerPtr = PkgManager *;
227     using FileInfoPtr = FileInfo *;
228     using PkgInfoPtr = PkgInfo *;
229     using StreamPtr = PkgStream *;
230     using VerifyCallback = std::function<void(int32_t result, uint32_t percent)>;
231     using PkgFileConstructor = std::function<PkgFilePtr(
232         PkgManagerPtr manager, PkgStreamPtr stream, PkgManager::PkgInfoPtr header)>;
233 
234     virtual ~PkgManager() = default;
235 
236     virtual void RegisterPkgFileCreator(const std::string &fileType, PkgFileConstructor constructor) = 0;
237 
238     static PkgManagerPtr CreatePackageInstance();
239     static PkgManagerPtr GetPackageInstance();
240     static void ReleasePackageInstance(PkgManagerPtr manager);
241 
242     /**
243      * Create an update package based on specified parameters.
244      *
245      * @param path              path of the update package
246      * @param header            header, which mainly consists of algorithm information
247      * @param files             packed file list
248      * @return                  packaging result, with the package saved as the file specified in path
249      */
250     virtual int32_t CreatePackage(const std::string &path, const std::string &keyName, PkgInfoPtr header,
251         std::vector<std::pair<std::string, ZipFileInfo>> &files) = 0;
252     virtual int32_t CreatePackage(const std::string &path, const std::string &keyName, PkgInfoPtr header,
253         std::vector<std::pair<std::string, ComponentInfo>> &files) = 0;
254     virtual int32_t CreatePackage(const std::string &path, const std::string &keyName, PkgInfoPtr header,
255         std::vector<std::pair<std::string, Lz4FileInfo>> &files) = 0;
256 
257     /**
258      * Verify the signature of the upgrade package.
259      *
260      * @param packagePath       file name of the update package
261      * @param keyPath           file name of the key used for verification
262      * @param version           version number of the update package to download
263      * @param digest            digest value
264      * @param size              digest value size
265      * @return                  verification result
266      */
267     virtual int32_t VerifyPackage(const std::string &packagePath, const std::string &keyPath,
268         const std::string &version, const PkgBuffer &digest, VerifyCallback cb) = 0;
269 
270     /**
271      * Load and parse the update package.
272      *
273      * @param packagePath       file name of the update package
274      * @param fileIds           returned file ID list
275      * @param middleTofile      file saving mode during intermediate parsing.
276      * @return                  loading and parsing result
277      */
278     virtual int32_t LoadPackage(const std::string &packagePath, const std::string &keyPath,
279         std::vector<std::string> &fileIds) = 0;
280 
281     virtual int32_t VerifyAccPackage(const std::string &packagePath, const std::string &keyPath) = 0;
282 
283     virtual int32_t VerifyOtaPackage(const std::string &devPath, uint64_t offset, size_t size) = 0;
284 
285     virtual int32_t VerifyOtaPackage(const std::string &packagePath) = 0;
286 
287     virtual int32_t VerifyBinFile(const std::string &packagePath, const std::string &keyPath,
288         const std::string &version, const PkgBuffer &digest) = 0;
289 
290     /**
291      * Get the information about the update package.
292      *
293      * @param packagePath   file name of the update package
294      * @return              information about the update package
295      */
296     virtual const PkgInfo *GetPackageInfo(const std::string &packagePath) = 0;
297 
298     /**
299      * Extract files from the update package, parse the files, and verify the hash value.
300      *
301      * @param fileId        File ID, which is obtained from the fileIds returned by the LoadPackage function
302      * @param output        output of the extracted files
303      * @return              read operation result
304      */
305     virtual int32_t ExtractFile(const std::string &fileId, StreamPtr output) = 0;
306 
307     /**
308      * Obtain information about the files in the update package.
309      *
310      * @param fileId        file ID
311      * @return              file information
312      */
313     virtual const FileInfo *GetFileInfo(const std::string &fileId) = 0;
314 
315     /**
316      * Create a a package stream to output.
317      *
318      * @param stream        stream for io management
319      * @param fileName      file name corresponding to the stream
320      * @param size          file size
321      * @param type          stream type
322      * @return              creation result; false if no access permission
323      */
324     virtual int32_t CreatePkgStream(StreamPtr &stream, const std::string &fileName, size_t size,
325         int32_t type) = 0;
326 
327     /**
328      * Create a package stream that can be processed while parsing.
329      *
330      * @param stream        stream used for io management
331      * @param fileName      file name corresponding to the stream
332      * @param processor     content processor
333      * @param context       context for the processor
334      * @return              creation result
335      */
336     virtual int32_t CreatePkgStream(StreamPtr &stream, const std::string &fileName,
337         PkgStream::ExtractFileProcessor processor, const void *context) = 0;
338 
339     /**
340      * Create a package stream that can be processed while parsing.
341      *
342      * @param stream        stream used for io management
343      * @param fileName      file name corresponding to the stream
344      * @param buffer        buffer
345      * @return              creation result
346      */
347     virtual int32_t CreatePkgStream(StreamPtr &stream, const std::string &fileName, const PkgBuffer &buffer) = 0;
348 
349     /**
350      * Create a package stream that can be processed while parsing.
351      *
352      * @param stream        stream used for io management
353      * @param fileName      file name corresponding to the stream
354      * @param buffer        ringbuffer
355      * @return              creation result
356      */
357     virtual int32_t CreatePkgStream(StreamPtr &stream, const std::string &fileName,
358         uint64_t fileLen, Updater::RingBuffer *buffer) = 0;
359 
360     /**
361      * Close the stream
362      *
363      * @param stream  stream对象
364      */
365     virtual void ClosePkgStream(StreamPtr &stream) = 0;
366 
367     virtual int32_t DecompressBuffer(FileInfoPtr info, const PkgBuffer &buffer, StreamPtr output) const = 0;
368     virtual int32_t CompressBuffer(FileInfoPtr info, const PkgBuffer &buffer, StreamPtr output) const = 0;
369 
370     virtual int32_t LoadPackageWithoutUnPack(const std::string &packagePath,
371         std::vector<std::string> &fileIds) = 0;
372 
373     virtual int32_t LoadPackageWithStream(const std::string &packagePath, const std::string &keyPath,
374         std::vector<std::string> &fileIds, uint8_t type, StreamPtr stream) = 0;
375 
376     virtual int32_t LoadPackageWithStreamForApp(AppPkgInfo &info,
377         std::vector<std::string> &fileIds, StreamPtr stream) = 0;
378 
379     virtual int32_t ParsePackage(StreamPtr stream, std::vector<std::string> &fileIds, int32_t type) = 0;
380 
381     virtual void SetPkgDecodeProgress(PkgDecodeProgress decodeProgress) = 0;
382 
383     virtual void PostDecodeProgress(int type, size_t writeDataLen, const void *context) = 0;
384 
385     virtual StreamPtr GetPkgFileStream(const std::string &fileName) = 0;
386 
387     virtual int32_t ParseComponents(const std::string &packagePath, std::vector<std::string> &fileName) = 0;
388 
389     /**
390      * Load and parse the update package.
391      *
392      * @param packagePath       file name of the update package
393      * @param fileIds           returned file ID list
394      * @param middleTofile      file saving mode during intermediate parsing.
395      * @return                  loading and parsing result
396      */
397     virtual int32_t LoadPackage(const std::string &packagePath,
398         std::vector<std::string> &fileIds, PkgFile::PkgType type) = 0;
399 };
400 
401 template <typename FileClassName>
NewPkgFile(PkgManager::PkgManagerPtr manager,PkgStreamPtr stream,PkgInfoPtr header)402 PkgFilePtr NewPkgFile(PkgManager::PkgManagerPtr manager, PkgStreamPtr stream, PkgInfoPtr header)
403 {
404     return new FileClassName (manager, stream, header);
405 }
406 } // namespace Hpackage
407 #endif // PKG_MANAGER_H
408