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73 lines
2.4 KiB
C++
73 lines
2.4 KiB
C++
/*
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* CZipLoader.h, part of VCMI engine
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*
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* Authors: listed in file AUTHORS in main folder
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*
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* License: GNU General Public License v2.0 or later
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* Full text of license available in license.txt file, in main folder
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*
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*/
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#pragma once
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#include "ISimpleResourceLoader.h"
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#include "CInputStream.h"
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#include "ResourceID.h"
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#include "CCompressedStream.h"
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#include "MinizipExtensions.h"
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class DLL_LINKAGE CZipStream : public CBufferedStream
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{
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unzFile file;
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public:
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/**
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* @brief constructs zip stream from already opened file
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* @param api virtual filesystem interface
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* @param archive path to archive to open
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* @param filepos position of file to open
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*/
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CZipStream(std::shared_ptr<CIOApi> api, const boost::filesystem::path & archive, unz64_file_pos filepos);
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~CZipStream();
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si64 getSize() override;
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ui32 calculateCRC32() override;
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protected:
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si64 readMore(ui8 * data, si64 size) override;
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};
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class DLL_LINKAGE CZipLoader : public ISimpleResourceLoader
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{
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std::shared_ptr<CIOApi> ioApi;
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zlib_filefunc64_def zlibApi;
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boost::filesystem::path archiveName;
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std::string mountPoint;
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std::unordered_map<ResourceID, unz64_file_pos> files;
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std::unordered_map<ResourceID, unz64_file_pos> listFiles(const std::string & mountPoint, const boost::filesystem::path &archive);
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public:
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CZipLoader(const std::string & mountPoint, const boost::filesystem::path & archive, std::shared_ptr<CIOApi> api = std::shared_ptr<CIOApi>(new CDefaultIOApi()));
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/// Interface implementation
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/// @see ISimpleResourceLoader
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std::unique_ptr<CInputStream> load(const ResourceID & resourceName) const override;
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bool existsResource(const ResourceID & resourceName) const override;
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std::string getMountPoint() const override;
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void updateFilteredFiles(std::function<bool(const std::string &)> filter) const override {}
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std::unordered_set<ResourceID> getFilteredFiles(std::function<bool(const ResourceID &)> filter) const override;
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};
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namespace ZipArchive
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{
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/// List all files present in archive
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std::vector<std::string> DLL_LINKAGE listFiles(boost::filesystem::path filename);
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/// extracts all files from archive "from" into destination directory "where". Directory must exist
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bool DLL_LINKAGE extract(boost::filesystem::path from, boost::filesystem::path where);
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///same as above, but extracts only files mentioned in "what" list
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bool DLL_LINKAGE extract(boost::filesystem::path from, boost::filesystem::path where, std::vector<std::string> what);
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}
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