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https://github.com/VCMP-SqMod/SqMod.git
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4a6bfc086c
Switched to POCO library for unified platform/library interface. Deprecated the external module API. It was creating more problems than solving. Removed most built-in libraries in favor of system libraries for easier maintenance. Cleaned and secured code with help from static analyzers.
93 lines
2.8 KiB
C++
93 lines
2.8 KiB
C++
//
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// Decompress.h
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//
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// Library: Zip
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// Package: Zip
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// Module: Decompress
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//
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// Definition of the Decompress class.
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//
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// Copyright (c) 2007, Applied Informatics Software Engineering GmbH.
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// and Contributors.
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//
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// SPDX-License-Identifier: BSL-1.0
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//
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#ifndef Zip_Decompress_INCLUDED
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#define Zip_Decompress_INCLUDED
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#include "Poco/Zip/Zip.h"
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#include "Poco/Zip/ParseCallback.h"
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#include "Poco/Zip/ZipArchive.h"
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#include "Poco/Path.h"
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#include "Poco/FIFOEvent.h"
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namespace Poco {
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namespace Zip {
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class ZipArchive;
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class Zip_API Decompress: public ParseCallback
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/// Decompress extracts files from zip files, can be used to extract single files or all files
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{
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public:
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using ZipMapping = std::map<std::string, Poco::Path>;
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/// Maps key of FileInfo entries to their local decompressed representation
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Poco::FIFOEvent<std::pair<const ZipLocalFileHeader, const std::string>> EError;
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/// Thrown whenever an error is detected when handling a ZipLocalFileHeader entry. The string contains an error message
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Poco::FIFOEvent<std::pair<const ZipLocalFileHeader, const Poco::Path>> EOk;
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/// Thrown whenever a file was successfully decompressed
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Decompress(std::istream& in, const Poco::Path& outputDir, bool flattenDirs = false, bool keepIncompleteFiles = false);
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/// Creates the Decompress. Note that istream must be good and at the very beginning of the file!
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/// Calling decompressAllFiles will cause the stream to be in state failed once the zip file is processed.
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/// outputDir must be a directory. If it doesn't exist yet, it will be automatically created.
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/// If flattenDirs is set to true, the directory structure of the zip file is not recreated.
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/// Instead, all files are extracted into one single directory.
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~Decompress();
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/// Destroys the Decompress.
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ZipArchive decompressAllFiles();
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/// Decompresses all files stored in the zip File. Can only be called once per Decompress object.
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/// Use mapping to retrieve the location of the decompressed files
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bool handleZipEntry(std::istream& zipStream, const ZipLocalFileHeader& hdr);
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const ZipMapping& mapping() const;
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/// A ZipMapping stores as key the full name of the ZipFileInfo/ZipLocalFileHeader and as value the decompressed file
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/// If for a ZipFileInfo no mapping exists, there was an error during decompression and the entry is considered to be corrupt
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private:
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Decompress(const Decompress&);
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Decompress& operator=(const Decompress&);
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void onOk(const void*, std::pair<const ZipLocalFileHeader, const Poco::Path>& val);
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private:
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std::istream& _in;
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Poco::Path _outDir;
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bool _flattenDirs;
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bool _keepIncompleteFiles;
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ZipMapping _mapping;
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};
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inline const Decompress::ZipMapping& Decompress::mapping() const
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{
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return _mapping;
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}
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} } // namespace Poco::Zip
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#endif // Zip_Decompress_INCLUDED
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