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1 /*
2  * Copyright (c) 2022 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 #include "zip.h"
16 
17 #include <fcntl.h>
18 #include <list>
19 #include <stdio.h>
20 #include <string>
21 #include <unistd.h>
22 #include <vector>
23 
24 #include "app_log_wrapper.h"
25 #include "appexecfwk_errors.h"
26 #include "bundle_errors.h"
27 #include "directory_ex.h"
28 #include "event_handler.h"
29 #include "ffrt.h"
30 #include "file_path.h"
31 #include "zip_internal.h"
32 #include "zip_reader.h"
33 #include "zip_writer.h"
34 
35 using namespace OHOS::AppExecFwk;
36 
37 namespace OHOS {
38 namespace AppExecFwk {
39 namespace LIBZIP {
40 namespace {
41 using FilterCallback = std::function<bool(const FilePath &)>;
42 using DirectoryCreator = std::function<bool(FilePath &, FilePath &)>;
43 using WriterFactory = std::function<std::unique_ptr<WriterDelegate>(FilePath &, FilePath &)>;
44 
45 const std::string SEPARATOR = "/";
46 const char HIDDEN_SEPARATOR = '.';
47 const std::string ZIP = ".zip";
48 
49 struct UnzipParam {
50     FilterCallback filterCB = nullptr;
51     bool logSkippedFiles = false;
52 };
IsHiddenFile(const FilePath & filePath)53 bool IsHiddenFile(const FilePath &filePath)
54 {
55     FilePath localFilePath = filePath;
56     if (!localFilePath.Value().empty()) {
57         return localFilePath.Value()[0] == HIDDEN_SEPARATOR;
58     } else {
59         return false;
60     }
61 }
ExcludeNoFilesFilter(const FilePath & filePath)62 bool ExcludeNoFilesFilter(const FilePath &filePath)
63 {
64     return true;
65 }
66 
ExcludeHiddenFilesFilter(const FilePath & filePath)67 bool ExcludeHiddenFilesFilter(const FilePath &filePath)
68 {
69     return !IsHiddenFile(filePath);
70 }
71 
ListDirectoryContent(const FilePath & filePath,bool & isSuccess)72 std::vector<FileAccessor::DirectoryContentEntry> ListDirectoryContent(const FilePath &filePath, bool& isSuccess)
73 {
74     FilePath curPath = filePath;
75     std::vector<FileAccessor::DirectoryContentEntry> fileDirectoryVector;
76     std::vector<std::string> filelist;
77     isSuccess = FilePath::GetZipAllDirFiles(curPath.Value(), filelist);
78     if (isSuccess) {
79         APP_LOGD("f.size=%{public}zu", filelist.size());
80         for (size_t i = 0; i < filelist.size(); i++) {
81             std::string str(filelist[i]);
82             if (!str.empty()) {
83                 fileDirectoryVector.push_back(
84                     FileAccessor::DirectoryContentEntry(FilePath(str), FilePath::DirectoryExists(FilePath(str))));
85             }
86         }
87     }
88     return fileDirectoryVector;
89 }
90 
91 // Creates a directory at |extractDir|/|entryPath|, including any parents.
CreateDirectory(FilePath & extractDir,FilePath & entryPath)92 bool CreateDirectory(FilePath &extractDir, FilePath &entryPath)
93 {
94     std::string path = extractDir.Value();
95     if (EndsWith(path, SEPARATOR)) {
96         return FilePath::CreateDirectory(FilePath(extractDir.Value() + entryPath.Value()));
97     } else {
98         return FilePath::CreateDirectory(FilePath(extractDir.Value() + "/" + entryPath.Value()));
99     }
100 }
101 
102 // Creates a WriterDelegate that can write a file at |extractDir|/|entryPath|.
CreateFilePathWriterDelegate(FilePath & extractDir,FilePath entryPath)103 std::unique_ptr<WriterDelegate> CreateFilePathWriterDelegate(FilePath &extractDir, FilePath entryPath)
104 {
105     if (EndsWith(extractDir.Value(), SEPARATOR)) {
106         return std::make_unique<FilePathWriterDelegate>(FilePath(extractDir.Value() + entryPath.Value()));
107     } else {
108         return std::make_unique<FilePathWriterDelegate>(FilePath(extractDir.Value() + "/" + entryPath.Value()));
109     }
110 }
111 }  // namespace
112 
ZipParams(const std::vector<FilePath> & srcDir,const FilePath & destFile)113 ZipParams::ZipParams(const std::vector<FilePath>& srcDir, const FilePath& destFile)
114     : srcDir_(srcDir), destFile_(destFile)
115 {}
116 
117 // Does not take ownership of |fd|.
ZipParams(const std::vector<FilePath> & srcDir,int destFd)118 ZipParams::ZipParams(const std::vector<FilePath> &srcDir, int destFd) : srcDir_(srcDir), destFd_(destFd)
119 {}
120 
FilePathEndIsSeparator(FilePath paramPath)121 FilePath FilePathEndIsSeparator(FilePath paramPath)
122 {
123     bool endIsSeparator = EndsWith(paramPath.Value(), SEPARATOR);
124     if (FilePath::IsDir(paramPath)) {
125         if (!endIsSeparator) {
126             paramPath.AppendSeparator();
127         }
128     }
129     return paramPath;
130 }
131 
Zip(const ZipParams & params,const OPTIONS & options)132 bool Zip(const ZipParams &params, const OPTIONS &options)
133 {
134     const std::vector<std::pair<FilePath, FilePath>> *filesToAdd = &params.GetFilesTozip();
135     std::vector<std::pair<FilePath, FilePath>> allRelativeFiles;
136     FilePath srcDir = params.SrcDir().front();
137     FilePath paramPath = FilePathEndIsSeparator(srcDir);
138     if (filesToAdd->empty()) {
139         filesToAdd = &allRelativeFiles;
140         std::list<FileAccessor::DirectoryContentEntry> entries;
141         if (EndsWith(paramPath.Value(), SEPARATOR)) {
142             entries.push_back(FileAccessor::DirectoryContentEntry(srcDir, true));
143             FilterCallback filterCallback = params.GetFilterCallback();
144             for (auto iter = entries.begin(); iter != entries.end(); ++iter) {
145                 if (iter != entries.begin() && ((!params.GetIncludeHiddenFiles() && IsHiddenFile(iter->path)) ||
146                     (filterCallback && !filterCallback(iter->path)))) {
147                     continue;
148                 }
149                 if (iter != entries.begin()) {
150                     FilePath relativePath;
151                     FilePath paramsSrcPath = srcDir;
152                     if (paramsSrcPath.AppendRelativePath(iter->path, &relativePath)) {
153                         allRelativeFiles.push_back(std::make_pair(relativePath, iter->path));
154                     }
155                 }
156                 if (iter->isDirectory) {
157                     bool isSuccess = false;
158                     std::vector<FileAccessor::DirectoryContentEntry> subEntries =
159                         ListDirectoryContent(iter->path, isSuccess);
160                     entries.insert(entries.end(), subEntries.begin(), subEntries.end());
161                 }
162             }
163         } else {
164             allRelativeFiles.push_back(std::make_pair(paramPath.BaseName(), paramPath));
165         }
166     }
167     std::unique_ptr<ZipWriter> zipWriter = nullptr;
168     if (params.DestFd() != kInvalidPlatformFile) {
169         zipWriter = std::make_unique<ZipWriter>(ZipWriter::InitZipFileWithFd(params.DestFd()));
170     } else {
171         zipWriter = std::make_unique<ZipWriter>(ZipWriter::InitZipFileWithFile(params.DestFile()));
172     }
173     if (zipWriter == nullptr) {
174         APP_LOGE("Init zipWriter failed");
175         return false;
176     }
177     return zipWriter->WriteEntries(*filesToAdd, options);
178 }
179 
GetZipsAllRelativeFilesInner(const ZipParams & params,const FilePath & iterPath,std::list<FileAccessor::DirectoryContentEntry> & entries,std::vector<std::pair<FilePath,FilePath>> & allRelativeFiles)180 void GetZipsAllRelativeFilesInner(const ZipParams &params, const FilePath &iterPath,
181     std::list<FileAccessor::DirectoryContentEntry> &entries,
182     std::vector<std::pair<FilePath, FilePath>> &allRelativeFiles)
183 {
184     FilterCallback filterCallback = params.GetFilterCallback();
185     for (auto iter = entries.begin(); iter != entries.end(); ++iter) {
186         if (iter != entries.begin() && ((!params.GetIncludeHiddenFiles() && IsHiddenFile(iter->path)) ||
187             (filterCallback && !filterCallback(iter->path)))) {
188             continue;
189         }
190         if (iter != entries.begin()) {
191             FilePath relativePath;
192             FilePath paramsSrcPath = iterPath;
193             if (paramsSrcPath.AppendRelativePath(iter->path, &relativePath)) {
194                 allRelativeFiles.push_back(std::make_pair(relativePath, iter->path));
195             }
196         }
197         if (iter->isDirectory) {
198             bool isSuccess = false;
199             std::vector<FileAccessor::DirectoryContentEntry> subEntries = ListDirectoryContent(iter->path, isSuccess);
200             entries.insert(entries.end(), subEntries.begin(), subEntries.end());
201         }
202     }
203 }
204 
GetZipsAllRelativeFiles(const ZipParams & params,std::vector<std::pair<FilePath,FilePath>> & allRelativeFiles,std::vector<FilePath> & srcFiles)205 void GetZipsAllRelativeFiles(const ZipParams &params, std::vector<std::pair<FilePath, FilePath>> &allRelativeFiles,
206     std::vector<FilePath> &srcFiles)
207 {
208     std::list<FileAccessor::DirectoryContentEntry> entries;
209     for (auto iterPath = srcFiles.begin(); iterPath != srcFiles.end(); ++iterPath) {
210         FilePath paramPath = FilePathEndIsSeparator(*iterPath);
211         if (!EndsWith(paramPath.Value(), SEPARATOR)) {
212             allRelativeFiles.push_back(std::make_pair(paramPath.BaseName(), paramPath));
213             continue;
214         }
215         entries.clear();
216         entries.push_back(FileAccessor::DirectoryContentEntry(*iterPath, true));
217         GetZipsAllRelativeFilesInner(params, *iterPath, entries, allRelativeFiles);
218     }
219 }
220 
Zips(const ZipParams & params,const OPTIONS & options)221 bool Zips(const ZipParams &params, const OPTIONS &options)
222 {
223     const std::vector<std::pair<FilePath, FilePath>> *filesToAdd = &params.GetFilesTozip();
224     std::vector<std::pair<FilePath, FilePath>> allRelativeFiles;
225     std::vector<FilePath> srcFiles = params.SrcDir();
226     if (filesToAdd->empty()) {
227         filesToAdd = &allRelativeFiles;
228         GetZipsAllRelativeFiles(params, allRelativeFiles, srcFiles);
229     }
230     std::unique_ptr<ZipWriter> zipWriter = nullptr;
231     if (params.DestFd() != kInvalidPlatformFile) {
232         zipWriter = std::make_unique<ZipWriter>(ZipWriter::InitZipFileWithFd(params.DestFd()));
233     } else {
234         zipWriter = std::make_unique<ZipWriter>(ZipWriter::InitZipFileWithFile(params.DestFile()));
235     }
236     if (zipWriter == nullptr) {
237         APP_LOGE("Init zipWriter failed");
238         return false;
239     }
240     return zipWriter->WriteEntries(*filesToAdd, options);
241 }
242 
UnzipWithFilterAndWriters(const PlatformFile & srcFile,FilePath & destDir,WriterFactory writerFactory,DirectoryCreator directoryCreator,UnzipParam & unzipParam)243 ErrCode UnzipWithFilterAndWriters(const PlatformFile &srcFile, FilePath &destDir, WriterFactory writerFactory,
244     DirectoryCreator directoryCreator, UnzipParam &unzipParam)
245 {
246     APP_LOGD("destDir=%{private}s", destDir.Value().c_str());
247     ZipReader reader;
248     if (!reader.OpenFromPlatformFile(srcFile)) {
249         APP_LOGI("Failed to open srcFile");
250         return ERR_ZLIB_SRC_FILE_FORMAT_ERROR;
251     }
252     while (reader.HasMore()) {
253         if (!reader.OpenCurrentEntryInZip()) {
254             APP_LOGI("Failed to open the current file in zip");
255             return ERR_ZLIB_SRC_FILE_FORMAT_ERROR;
256         }
257         const FilePath &constEntryPath = reader.CurrentEntryInfo()->GetFilePath();
258         FilePath entryPath = constEntryPath;
259         if (reader.CurrentEntryInfo()->IsUnsafe()) {
260             APP_LOGI("Found an unsafe file in zip");
261             return ERR_ZLIB_SRC_FILE_FORMAT_ERROR;
262         }
263         // callback
264         if (unzipParam.filterCB(entryPath)) {
265             if (reader.CurrentEntryInfo()->IsDirectory()) {
266                 if (!directoryCreator(destDir, entryPath)) {
267                     APP_LOGI("directory_creator(%{private}s) Failed", entryPath.Value().c_str());
268                     return ERR_ZLIB_DEST_FILE_DISABLED;
269                 }
270             } else {
271                 std::unique_ptr<WriterDelegate> writer = writerFactory(destDir, entryPath);
272                 if (!writer->PrepareOutput()) {
273                     APP_LOGE("PrepareOutput err");
274                     return ERR_ZLIB_DEST_FILE_DISABLED;
275                 }
276                 if (!reader.ExtractCurrentEntry(writer.get(), std::numeric_limits<uint64_t>::max())) {
277                     APP_LOGI("Failed to extract");
278                     return ERR_ZLIB_SRC_FILE_FORMAT_ERROR;
279                 }
280             }
281         } else if (unzipParam.logSkippedFiles) {
282             APP_LOGI("Skipped file");
283         }
284 
285         if (!reader.AdvanceToNextEntry()) {
286             APP_LOGI("Failed to advance to the next file");
287             return ERR_ZLIB_SRC_FILE_FORMAT_ERROR;
288         }
289     }
290     return ERR_OK;
291 }
292 
UnzipWithFilterAndWritersParallel(const FilePath & srcFile,FilePath & destDir,WriterFactory writerFactory,DirectoryCreator directoryCreator,UnzipParam & unzipParam)293 ErrCode UnzipWithFilterAndWritersParallel(const FilePath &srcFile, FilePath &destDir, WriterFactory writerFactory,
294     DirectoryCreator directoryCreator, UnzipParam &unzipParam)
295 {
296     APP_LOGD("destDir=%{private}s", destDir.Value().c_str());
297     ZipParallelReader reader;
298     FilePath src = srcFile;
299 
300     if (!reader.Open(src)) {
301         APP_LOGI("Failed to open srcFile");
302         return ERR_ZLIB_SRC_FILE_FORMAT_ERROR;
303     }
304     ErrCode ret = ERR_OK;
305     for (int32_t i = 0; i < reader.num_entries(); i++) {
306         if (!reader.OpenCurrentEntryInZip()) {
307             APP_LOGI("Failed to open the current file in zip");
308             return ERR_ZLIB_SRC_FILE_FORMAT_ERROR;
309         }
310         const FilePath &constEntryPath = reader.CurrentEntryInfo()->GetFilePath();
311         if (reader.CurrentEntryInfo()->IsUnsafe()) {
312             APP_LOGI("Found an unsafe file in zip");
313             return ERR_ZLIB_SRC_FILE_FORMAT_ERROR;
314         }
315         unz_file_pos position = {};
316         if (!reader.GetCurrentEntryPos(position)) {
317             return ERR_ZLIB_SRC_FILE_FORMAT_ERROR;
318         }
319         bool isDirectory = reader.CurrentEntryInfo()->IsDirectory();
320         ffrt::submit([&, position, isDirectory, constEntryPath] () {
321             if (ret != ERR_OK) {
322                 return;
323             }
324             int resourceId = sched_getcpu();
325             unzFile zipFile = reader.GetZipHandler(resourceId);
326             if (!reader.GotoEntry(zipFile, position)) {
327                 APP_LOGI("Failed to go to entry");
328                 ret = ERR_ZLIB_SRC_FILE_FORMAT_ERROR;
329                 return;
330             }
331             FilePath entryPath = constEntryPath;
332             if (unzipParam.filterCB(entryPath)) {
333                 if (isDirectory) {
334                     if (!directoryCreator(destDir, entryPath)) {
335                         APP_LOGI("directory_creator(%{private}s) Failed", entryPath.Value().c_str());
336                         reader.ReleaseZipHandler(resourceId);
337                         ret = ERR_ZLIB_DEST_FILE_DISABLED;
338                         return;
339                     }
340                 } else {
341                     std::unique_ptr<WriterDelegate> writer = writerFactory(destDir, entryPath);
342                     if (!writer->PrepareOutput()) {
343                         APP_LOGE("PrepareOutput err");
344                         reader.ReleaseZipHandler(resourceId);
345                         ret = ERR_ZLIB_DEST_FILE_DISABLED;
346                         return;
347                     }
348                     if (!reader.ExtractEntry(writer.get(), zipFile, std::numeric_limits<uint64_t>::max())) {
349                         APP_LOGI("Failed to extract");
350                         reader.ReleaseZipHandler(resourceId);
351                         ret = ERR_ZLIB_SRC_FILE_FORMAT_ERROR;
352                         return;
353                     }
354                 }
355             } else if (unzipParam.logSkippedFiles) {
356                 APP_LOGI("Skipped file");
357             }
358             reader.ReleaseZipHandler(resourceId);
359             }, {}, {});
360         if (!reader.AdvanceToNextEntry()) {
361             APP_LOGI("Failed to advance to the next file");
362             return ERR_ZLIB_SRC_FILE_FORMAT_ERROR;
363         }
364     }
365     ffrt::wait();
366     return ERR_OK;
367 }
368 
UnzipWithFilterCallback(const FilePath & srcFile,const FilePath & destDir,const OPTIONS & options,UnzipParam & unzipParam)369 ErrCode UnzipWithFilterCallback(
370     const FilePath &srcFile, const FilePath &destDir, const OPTIONS &options, UnzipParam &unzipParam)
371 {
372     FilePath src = srcFile;
373     if (!FilePathCheckValid(src.Value())) {
374         APP_LOGI("FilePathCheckValid returnValue is false");
375         return ERR_ZLIB_SRC_FILE_DISABLED;
376     }
377 
378     FilePath dest = destDir;
379 
380     APP_LOGD("srcFile=%{private}s, destFile=%{private}s", src.Value().c_str(), dest.Value().c_str());
381 
382     if (!FilePath::PathIsValid(srcFile)) {
383         APP_LOGI("PathIsValid return value is false");
384         return ERR_ZLIB_SRC_FILE_DISABLED;
385     }
386 
387     ErrCode ret = ERR_OK;
388     if (options.parallel == PARALLEL_STRATEGY_PARALLEL_DECOMPRESSION) {
389         ret = UnzipWithFilterAndWritersParallel(src,
390             dest,
391             std::bind(&CreateFilePathWriterDelegate, std::placeholders::_1, std::placeholders::_2),
392             std::bind(&CreateDirectory, std::placeholders::_1, std::placeholders::_2),
393             unzipParam);
394     } else {
395         PlatformFile zipFd = open(src.Value().c_str(), S_IREAD, O_CREAT);
396         if (zipFd == kInvalidPlatformFile) {
397             APP_LOGE("Failed to open");
398             return ERR_ZLIB_SRC_FILE_DISABLED;
399         }
400         ret = UnzipWithFilterAndWriters(zipFd,
401             dest,
402             std::bind(&CreateFilePathWriterDelegate, std::placeholders::_1, std::placeholders::_2),
403             std::bind(&CreateDirectory, std::placeholders::_1, std::placeholders::_2),
404             unzipParam);
405         close(zipFd);
406     }
407     return ret;
408 }
409 
Unzip(const std::string & srcFile,const std::string & destFile,OPTIONS options,std::shared_ptr<ZlibCallbackInfo> zlibCallbackInfo)410 bool Unzip(const std::string &srcFile, const std::string &destFile, OPTIONS options,
411     std::shared_ptr<ZlibCallbackInfo> zlibCallbackInfo)
412 {
413     if (zlibCallbackInfo == nullptr) {
414         APP_LOGE("zlibCallbackInfo is nullptr");
415         return false;
416     }
417     FilePath srcFileDir(srcFile);
418     FilePath destDir(destFile);
419     if ((destDir.Value().size() == 0) || FilePath::HasRelativePathBaseOnAPIVersion(destFile)) {
420         zlibCallbackInfo->OnZipUnZipFinish(ERR_ZLIB_DEST_FILE_DISABLED);
421         return false;
422     }
423     if ((srcFileDir.Value().size() == 0) || FilePath::HasRelativePathBaseOnAPIVersion(srcFile)) {
424         APP_LOGI("srcFile isn't Exist");
425         zlibCallbackInfo->OnZipUnZipFinish(ERR_ZLIB_SRC_FILE_DISABLED);
426         return false;
427     }
428     if (!FilePath::PathIsValid(srcFileDir)) {
429         APP_LOGI("srcFile invalid");
430         zlibCallbackInfo->OnZipUnZipFinish(ERR_ZLIB_SRC_FILE_DISABLED);
431         return false;
432     }
433     if (FilePath::DirectoryExists(destDir)) {
434         if (!FilePath::PathIsWriteable(destDir)) {
435             APP_LOGI("FilePath::PathIsWriteable(destDir) fail");
436             zlibCallbackInfo->OnZipUnZipFinish(ERR_ZLIB_DEST_FILE_DISABLED);
437             return false;
438         }
439     } else {
440         APP_LOGI("destDir isn't path");
441         zlibCallbackInfo->OnZipUnZipFinish(ERR_ZLIB_DEST_FILE_DISABLED);
442         return false;
443     }
444     auto innerTask = [srcFileDir, destDir, options, zlibCallbackInfo]() {
445         UnzipParam unzipParam {
446             .filterCB = ExcludeNoFilesFilter,
447             .logSkippedFiles = true
448         };
449         ErrCode err = UnzipWithFilterCallback(srcFileDir, destDir, options, unzipParam);
450         if (zlibCallbackInfo != nullptr) {
451             zlibCallbackInfo->OnZipUnZipFinish(err);
452         }
453     };
454     PostTask(innerTask);
455     return true;
456 }
457 
ZipWithFilterCallback(const FilePath & srcDir,const FilePath & destFile,const OPTIONS & options,FilterCallback filterCB)458 ErrCode ZipWithFilterCallback(const FilePath &srcDir, const FilePath &destFile,
459     const OPTIONS &options, FilterCallback filterCB)
460 {
461     FilePath destPath = destFile;
462     if (!FilePath::DirectoryExists(destPath.DirName())) {
463         APP_LOGE("The destPath not exist");
464         return ERR_ZLIB_DEST_FILE_DISABLED;
465     }
466     if (!FilePath::PathIsWriteable(destPath.DirName())) {
467         APP_LOGE("The destPath not writeable");
468         return ERR_ZLIB_DEST_FILE_DISABLED;
469     }
470 
471     if (!FilePath::PathIsValid(srcDir)) {
472         APP_LOGI("srcDir isn't Exist");
473         return ERR_ZLIB_SRC_FILE_DISABLED;
474     } else {
475         if (!FilePath::PathIsReadable(srcDir)) {
476             APP_LOGI("srcDir not readable");
477             return ERR_ZLIB_SRC_FILE_DISABLED;
478         }
479     }
480 
481     std::vector<FilePath> srcFile = {srcDir};
482     ZipParams params(srcFile, FilePath(destPath.CheckDestDirTail()));
483     params.SetFilterCallback(filterCB);
484     bool result = Zip(params, options);
485     if (result) {
486         return ERR_OK;
487     } else {
488         return ERR_ZLIB_DEST_FILE_DISABLED;
489     }
490 }
491 
ZipsWithFilterCallback(const std::vector<FilePath> & srcFiles,const FilePath & destFile,const OPTIONS & options,FilterCallback filterCB)492 ErrCode ZipsWithFilterCallback(const std::vector<FilePath> &srcFiles, const FilePath &destFile,
493     const OPTIONS &options, FilterCallback filterCB)
494 {
495     FilePath destPath = destFile;
496     if (!FilePath::DirectoryExists(destPath.DirName())) {
497         APP_LOGE("The destPath not exist");
498         return ERR_ZLIB_DEST_FILE_DISABLED;
499     }
500     if (!FilePath::PathIsWriteable(destPath.DirName())) {
501         APP_LOGE("The destPath not writeable");
502         return ERR_ZLIB_DEST_FILE_DISABLED;
503     }
504 
505     for (auto iter = srcFiles.begin(); iter != srcFiles.end(); ++iter) {
506         if (!FilePath::PathIsValid(*iter)) {
507             APP_LOGI("srcDir isn't Exist");
508             return ERR_ZLIB_SRC_FILE_DISABLED;
509         } else {
510             if (!FilePath::PathIsReadable(*iter)) {
511                 APP_LOGI("srcDir not readable");
512                 return ERR_ZLIB_SRC_FILE_DISABLED;
513             }
514         }
515     }
516 
517     ZipParams params(srcFiles, FilePath(destPath.CheckDestDirTail()));
518     params.SetFilterCallback(filterCB);
519     bool result = Zips(params, options);
520     if (result) {
521         return ERR_OK;
522     } else {
523         return ERR_ZLIB_DEST_FILE_DISABLED;
524     }
525 }
526 
Zip(const std::string & srcPath,const std::string & destPath,const OPTIONS & options,bool includeHiddenFiles,std::shared_ptr<ZlibCallbackInfo> zlibCallbackInfo)527 bool Zip(const std::string &srcPath, const std::string &destPath, const OPTIONS &options,
528     bool includeHiddenFiles, std::shared_ptr<ZlibCallbackInfo> zlibCallbackInfo)
529 {
530     if (zlibCallbackInfo == nullptr) {
531         return false;
532     }
533     FilePath srcDir(srcPath);
534     FilePath destFile(destPath);
535     APP_LOGD("srcDir=%{private}s, destFile=%{private}s", srcDir.Value().c_str(), destFile.Value().c_str());
536 
537     if ((srcDir.Value().size() == 0) || FilePath::HasRelativePathBaseOnAPIVersion(srcPath)) {
538         zlibCallbackInfo->OnZipUnZipFinish(ERR_ZLIB_SRC_FILE_DISABLED);
539         return false;
540     }
541     if ((destFile.Value().size() == 0) || FilePath::HasRelativePathBaseOnAPIVersion(destPath)) {
542         zlibCallbackInfo->OnZipUnZipFinish(ERR_ZLIB_DEST_FILE_DISABLED);
543         return false;
544     }
545 
546     auto innerTask = [srcDir, destFile, includeHiddenFiles, zlibCallbackInfo, options]() {
547         if (includeHiddenFiles) {
548             ErrCode err = ZipWithFilterCallback(srcDir, destFile, options, ExcludeNoFilesFilter);
549             if (zlibCallbackInfo != nullptr) {
550                 zlibCallbackInfo->OnZipUnZipFinish(err);
551             }
552         } else {
553             ErrCode err = ZipWithFilterCallback(srcDir, destFile, options, ExcludeHiddenFilesFilter);
554             if (zlibCallbackInfo != nullptr) {
555                 zlibCallbackInfo->OnZipUnZipFinish(err);
556             }
557         }
558     };
559 
560     PostTask(innerTask);
561     return true;
562 }
563 
ZipFileIsValid(const std::string & srcFile)564 bool ZipFileIsValid(const std::string &srcFile)
565 {
566     if ((srcFile.size() == 0) || FilePath::HasRelativePathBaseOnAPIVersion(srcFile)) {
567         APP_LOGE("srcFile len is 0 or ../");
568         return false;
569     }
570     if (!FilePathCheckValid(srcFile)) {
571         APP_LOGE("FilePathCheckValid return false");
572         return false;
573     }
574     FilePath srcFileDir(srcFile);
575     if (!FilePath::PathIsValid(srcFileDir)) {
576         APP_LOGE("PathIsValid return false");
577         return false;
578     }
579     if (!FilePath::PathIsReadable(srcFileDir)) {
580         APP_LOGE("PathIsReadable return false");
581         return false;
582     }
583     return true;
584 }
585 
GetOriginalSize(PlatformFile zipFd,int64_t & originalSize)586 ErrCode GetOriginalSize(PlatformFile zipFd, int64_t &originalSize)
587 {
588     ZipReader reader;
589     if (!reader.OpenFromPlatformFile(zipFd)) {
590         APP_LOGE("Failed to open, not ZIP format or damaged");
591         return ERR_ZLIB_SRC_FILE_FORMAT_ERROR;
592     }
593     int64_t totalSize = 0;
594     while (reader.HasMore()) {
595         if (!reader.OpenCurrentEntryInZip()) {
596             APP_LOGE("Failed to open the current file in zip");
597             return ERR_ZLIB_SRC_FILE_FORMAT_ERROR;
598         }
599         const FilePath &constEntryPath = reader.CurrentEntryInfo()->GetFilePath();
600         FilePath entryPath = constEntryPath;
601         if (reader.CurrentEntryInfo()->IsUnsafe()) {
602             APP_LOGE("Found an unsafe file in zip");
603             return ERR_ZLIB_SRC_FILE_FORMAT_ERROR;
604         }
605         totalSize += reader.CurrentEntryInfo()->GetOriginalSize();
606         if (!reader.AdvanceToNextEntry()) {
607             APP_LOGE("Failed to advance to the next file");
608             return ERR_ZLIB_SRC_FILE_FORMAT_ERROR;
609         }
610     }
611     originalSize = totalSize;
612     return ERR_OK;
613 }
614 
GetOriginalSize(const std::string & srcFile,int64_t & originalSize)615 ErrCode GetOriginalSize(const std::string &srcFile, int64_t &originalSize)
616 {
617     if (!ZipFileIsValid(srcFile)) {
618         return ERR_ZLIB_SRC_FILE_DISABLED;
619     }
620     PlatformFile zipFd = open(srcFile.c_str(), S_IREAD, O_CREAT);
621     if (zipFd == kInvalidPlatformFile) {
622         APP_LOGE("Failed to open file, errno: %{public}d, %{public}s", errno, strerror(errno));
623         return ERR_ZLIB_SRC_FILE_DISABLED;
624     }
625     ErrCode ret = GetOriginalSize(zipFd, originalSize);
626     close(zipFd);
627     return ret;
628 }
629 
Zips(const std::vector<std::string> & srcFiles,const std::string & destPath,const OPTIONS & options,bool includeHiddenFiles,std::shared_ptr<ZlibCallbackInfo> zlibCallbackInfo)630 bool Zips(const std::vector<std::string> &srcFiles, const std::string &destPath, const OPTIONS &options,
631     bool includeHiddenFiles, std::shared_ptr<ZlibCallbackInfo> zlibCallbackInfo)
632 {
633     if (zlibCallbackInfo == nullptr) {
634         return false;
635     }
636     if (FilePath::HasRelativePathBaseOnAPIVersion(srcFiles)) {
637         zlibCallbackInfo->OnZipUnZipFinish(ERR_ZLIB_SRC_FILE_DISABLED);
638         return false;
639     }
640     std::vector<FilePath> srcFilesPath;
641     for (auto iter = srcFiles.begin(); iter != srcFiles.end(); ++iter) {
642         FilePath srcFile(*iter);
643         if (srcFile.Value().size() == 0) {
644             zlibCallbackInfo->OnZipUnZipFinish(ERR_ZLIB_SRC_FILE_DISABLED);
645             return false;
646         }
647         srcFilesPath.push_back(srcFile);
648     }
649     FilePath destFile(destPath);
650     if ((destFile.Value().size() == 0) || FilePath::HasRelativePathBaseOnAPIVersion(destPath)) {
651         zlibCallbackInfo->OnZipUnZipFinish(ERR_ZLIB_DEST_FILE_DISABLED);
652         return false;
653     }
654 
655     auto innerTask = [srcFilesPath, destFile, includeHiddenFiles, zlibCallbackInfo, options]() {
656         if (includeHiddenFiles) {
657             ErrCode err = ZipsWithFilterCallback(srcFilesPath, destFile, options, ExcludeNoFilesFilter);
658             if (zlibCallbackInfo != nullptr) {
659                 zlibCallbackInfo->OnZipUnZipFinish(err);
660             }
661         } else {
662             ErrCode err = ZipsWithFilterCallback(srcFilesPath, destFile, options, ExcludeHiddenFilesFilter);
663             if (zlibCallbackInfo != nullptr) {
664                 zlibCallbackInfo->OnZipUnZipFinish(err);
665             }
666         }
667     };
668 
669     PostTask(innerTask);
670     return true;
671 }
672 }  // namespace LIBZIP
673 }  // namespace AppExecFwk
674 }  // namespace OHOS
675