jeanlemotan
64 lines
1.4 KiB
C++
64 lines
1.4 KiB
C++
#pragma once
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#include "ZipBase.h"
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#include "tl/memory_buffer.h"
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#include "tl/result.h"
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#include "tl/vector.h"
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namespace fs
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{
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//////////////////////////////////////////////////////////////////////////
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class ISource;
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//////////////////////////////////////////////////////////////////////////
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class ZipReader : public ZipBase
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{
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public:
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enum class ErrorCode : uint8_t
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{
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InvalidStream,
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BadSignature,
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BadOffset,
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CorruptedFile,
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};
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typedef tl::error<ErrorCode> Error;
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typedef tl::result<ZipReader, Error> CreateResult;
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static CreateResult create(ISource& source);
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struct Entry
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{
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tl::string name;
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CompressionMethod compressionMethod = CompressionMethod::Store;
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GeneralBitFlags generalBitFlags;
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uint64_t uncompressedSize = 0;
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uint64_t compressedSize = 0;
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uint32_t crc32 = 0;
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uint64_t localHeaderOffset = 0;
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uint64_t dataOffset = 0;
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time_t lastModTimePoint = 0;
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tl::memory_buffer comment;
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};
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size_t getEntryCount() const;
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const Entry& getEntry(size_t index) const;
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typedef tl::result<void, Error> SeekResult;
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SeekResult seekSourceToEntryData(const Entry& entry, ISource& o_source) const;
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private:
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explicit ZipReader(tl::vector<Entry> entries);
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typedef tl::result<tl::pair<uint64_t, uint64_t>, Error> CentralDirectoryResult;
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static CentralDirectoryResult findCentralDirectoryBounds(ISource& source);
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tl::vector<Entry> m_entries;
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};
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//////////////////////////////////////////////////////////////////////////
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}
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