diff options
Diffstat (limited to 'src/libs/3rdparty/7zip/unix/CPP/7zip/Archive/7z/7zIn.h')
| -rw-r--r-- | src/libs/3rdparty/7zip/unix/CPP/7zip/Archive/7z/7zIn.h | 412 |
1 files changed, 412 insertions, 0 deletions
diff --git a/src/libs/3rdparty/7zip/unix/CPP/7zip/Archive/7z/7zIn.h b/src/libs/3rdparty/7zip/unix/CPP/7zip/Archive/7z/7zIn.h new file mode 100644 index 000000000..98f61c81e --- /dev/null +++ b/src/libs/3rdparty/7zip/unix/CPP/7zip/Archive/7z/7zIn.h @@ -0,0 +1,412 @@ +// 7zIn.h + +#ifndef __7Z_IN_H +#define __7Z_IN_H + +#include "../../../Common/MyCom.h" + +#include "../../../Windows/PropVariant.h" + +#include "../../IPassword.h" +#include "../../IStream.h" + +#include "../../Common/CreateCoder.h" +#include "../../Common/InBuffer.h" + +#include "7zItem.h" + +namespace NArchive { +namespace N7z { + +/* + We don't need to init isEncrypted and passwordIsDefined + We must upgrade them only */ + +#ifdef _NO_CRYPTO +#define _7Z_DECODER_CRYPRO_VARS_DECL +#define _7Z_DECODER_CRYPRO_VARS +#else +#define _7Z_DECODER_CRYPRO_VARS_DECL , ICryptoGetTextPassword *getTextPassword, bool &isEncrypted, bool &passwordIsDefined +#define _7Z_DECODER_CRYPRO_VARS , getTextPassword, isEncrypted, passwordIsDefined +#endif + +struct CParsedMethods +{ + Byte Lzma2Prop; + UInt32 LzmaDic; + CRecordVector<UInt64> IDs; + + CParsedMethods(): Lzma2Prop(0), LzmaDic(0) {} +}; + +struct CFolders +{ + CNum NumPackStreams; + CNum NumFolders; + + CObjArray<UInt64> PackPositions; // NumPackStreams + 1 + // CUInt32DefVector PackCRCs; // we don't use PackCRCs now + + CUInt32DefVector FolderCRCs; // NumFolders + CObjArray<CNum> NumUnpackStreamsVector; // NumFolders + + CObjArray<UInt64> CoderUnpackSizes; // including unpack sizes of bind coders + CObjArray<CNum> FoToCoderUnpackSizes; // NumFolders + 1 + CObjArray<CNum> FoStartPackStreamIndex; // NumFolders + 1 + CObjArray<Byte> FoToMainUnpackSizeIndex; // NumFolders + + CObjArray<size_t> FoCodersDataOffset; // NumFolders + 1 + CByteBuffer CodersData; + + CParsedMethods ParsedMethods; + + void ParseFolderInfo(unsigned folderIndex, CFolder &folder) const; + + unsigned GetNumFolderUnpackSizes(unsigned folderIndex) const + { + return FoToCoderUnpackSizes[folderIndex + 1] - FoToCoderUnpackSizes[folderIndex]; + } + + UInt64 GetFolderUnpackSize(unsigned folderIndex) const + { + return CoderUnpackSizes[FoToCoderUnpackSizes[folderIndex] + FoToMainUnpackSizeIndex[folderIndex]]; + } + + UInt64 GetStreamPackSize(unsigned index) const + { + return PackPositions[index + 1] - PackPositions[index]; + } + + void Clear() + { + NumPackStreams = 0; + PackPositions.Free(); + // PackCRCs.Clear(); + + NumFolders = 0; + FolderCRCs.Clear(); + NumUnpackStreamsVector.Free(); + CoderUnpackSizes.Free(); + FoToCoderUnpackSizes.Free(); + FoStartPackStreamIndex.Free(); + FoToMainUnpackSizeIndex.Free(); + FoCodersDataOffset.Free(); + CodersData.Free(); + } +}; + +struct CDatabase: public CFolders +{ + CRecordVector<CFileItem> Files; + + CUInt64DefVector CTime; + CUInt64DefVector ATime; + CUInt64DefVector MTime; + CUInt64DefVector StartPos; + CRecordVector<bool> IsAnti; + /* + CRecordVector<bool> IsAux; + CByteBuffer SecureBuf; + CRecordVector<UInt32> SecureIDs; + */ + + CByteBuffer NamesBuf; + CObjArray<size_t> NameOffsets; // numFiles + 1, offsets of utf-16 symbols + + /* + void ClearSecure() + { + SecureBuf.Free(); + SecureIDs.Clear(); + } + */ + + void Clear() + { + CFolders::Clear(); + // ClearSecure(); + + NamesBuf.Free(); + NameOffsets.Free(); + + Files.Clear(); + CTime.Clear(); + ATime.Clear(); + MTime.Clear(); + StartPos.Clear(); + IsAnti.Clear(); + // IsAux.Clear(); + } + + bool IsSolid() const + { + for (CNum i = 0; i < NumFolders; i++) + if (NumUnpackStreamsVector[i] > 1) + return true; + return false; + } + bool IsItemAnti(unsigned index) const { return (index < IsAnti.Size() && IsAnti[index]); } + // bool IsItemAux(unsigned index) const { return (index < IsAux.Size() && IsAux[index]); } + + const void * GetName(unsigned index) const + { + if (!NameOffsets || !NamesBuf) + return NULL; + return (const void *)((const Byte *)NamesBuf + NameOffsets[index] * 2); + }; + + void GetPath(unsigned index, UString &path) const; + HRESULT GetPath_Prop(unsigned index, PROPVARIANT *path) const throw(); +}; + +struct CInArchiveInfo +{ + CArchiveVersion Version; + UInt64 StartPosition; + UInt64 StartPositionAfterHeader; + UInt64 DataStartPosition; + UInt64 DataStartPosition2; + CRecordVector<UInt64> FileInfoPopIDs; + + void Clear() + { + StartPosition = 0; + StartPositionAfterHeader = 0; + DataStartPosition = 0; + DataStartPosition2 = 0; + FileInfoPopIDs.Clear(); + } +}; + +struct CDbEx: public CDatabase +{ + CInArchiveInfo ArcInfo; + CRecordVector<CNum> FolderStartFileIndex; + CRecordVector<CNum> FileIndexToFolderIndexMap; + + UInt64 HeadersSize; + UInt64 PhySize; + + /* + CRecordVector<size_t> SecureOffsets; + bool IsTree; + bool ThereAreAltStreams; + */ + + bool IsArc; + bool PhySizeWasConfirmed; + + bool ThereIsHeaderError; + bool UnexpectedEnd; + // bool UnsupportedVersion; + + bool StartHeaderWasRecovered; + bool UnsupportedFeatureWarning; + bool UnsupportedFeatureError; + + /* + void ClearSecureEx() + { + ClearSecure(); + SecureOffsets.Clear(); + } + */ + + void Clear() + { + IsArc = false; + PhySizeWasConfirmed = false; + + ThereIsHeaderError = false; + UnexpectedEnd = false; + // UnsupportedVersion = false; + + StartHeaderWasRecovered = false; + UnsupportedFeatureError = false; + UnsupportedFeatureWarning = false; + + /* + IsTree = false; + ThereAreAltStreams = false; + */ + + CDatabase::Clear(); + + // SecureOffsets.Clear(); + ArcInfo.Clear(); + FolderStartFileIndex.Clear(); + FileIndexToFolderIndexMap.Clear(); + + HeadersSize = 0; + PhySize = 0; + } + + void FillLinks(); + + UInt64 GetFolderStreamPos(unsigned folderIndex, unsigned indexInFolder) const + { + return ArcInfo.DataStartPosition + + PackPositions[FoStartPackStreamIndex[folderIndex] + indexInFolder]; + } + + UInt64 GetFolderFullPackSize(unsigned folderIndex) const + { + return + PackPositions[FoStartPackStreamIndex[folderIndex + 1]] - + PackPositions[FoStartPackStreamIndex[folderIndex]]; + } + + UInt64 GetFolderPackStreamSize(unsigned folderIndex, unsigned streamIndex) const + { + unsigned i = FoStartPackStreamIndex[folderIndex] + streamIndex; + return PackPositions[i + 1] - PackPositions[i]; + } + + UInt64 GetFilePackSize(CNum fileIndex) const + { + CNum folderIndex = FileIndexToFolderIndexMap[fileIndex]; + if (folderIndex != kNumNoIndex) + if (FolderStartFileIndex[folderIndex] == fileIndex) + return GetFolderFullPackSize(folderIndex); + return 0; + } +}; + +const unsigned kNumBufLevelsMax = 4; + +struct CInByte2 +{ + const Byte *_buffer; +public: + size_t _size; + size_t _pos; + + size_t GetRem() const { return _size - _pos; } + const Byte *GetPtr() const { return _buffer + _pos; } + void Init(const Byte *buffer, size_t size) + { + _buffer = buffer; + _size = size; + _pos = 0; + } + Byte ReadByte(); + void ReadBytes(Byte *data, size_t size); + void SkipDataNoCheck(UInt64 size) { _pos += (size_t)size; } + void SkipData(UInt64 size); + + void SkipData(); + void SkipRem() { _pos = _size; } + UInt64 ReadNumber(); + CNum ReadNum(); + UInt32 ReadUInt32(); + UInt64 ReadUInt64(); + + void ParseFolder(CFolder &folder); +}; + +class CStreamSwitch; + +const UInt32 kHeaderSize = 32; + +class CInArchive +{ + friend class CStreamSwitch; + + CMyComPtr<IInStream> _stream; + + unsigned _numInByteBufs; + CInByte2 _inByteVector[kNumBufLevelsMax]; + + CInByte2 *_inByteBack; + bool ThereIsHeaderError; + + UInt64 _arhiveBeginStreamPosition; + UInt64 _fileEndPosition; + + Byte _header[kHeaderSize]; + + UInt64 HeadersSize; + + void AddByteStream(const Byte *buffer, size_t size); + + void DeleteByteStream(bool needUpdatePos) + { + _numInByteBufs--; + if (_numInByteBufs > 0) + { + _inByteBack = &_inByteVector[_numInByteBufs - 1]; + if (needUpdatePos) + _inByteBack->_pos += _inByteVector[_numInByteBufs]._pos; + } + } + +private: + HRESULT FindAndReadSignature(IInStream *stream, const UInt64 *searchHeaderSizeLimit); + + void ReadBytes(Byte *data, size_t size) { _inByteBack->ReadBytes(data, size); } + Byte ReadByte() { return _inByteBack->ReadByte(); } + UInt64 ReadNumber() { return _inByteBack->ReadNumber(); } + CNum ReadNum() { return _inByteBack->ReadNum(); } + UInt64 ReadID() { return _inByteBack->ReadNumber(); } + UInt32 ReadUInt32() { return _inByteBack->ReadUInt32(); } + UInt64 ReadUInt64() { return _inByteBack->ReadUInt64(); } + void SkipData(UInt64 size) { _inByteBack->SkipData(size); } + void SkipData() { _inByteBack->SkipData(); } + void WaitId(UInt64 id); + + void ReadArchiveProperties(CInArchiveInfo &archiveInfo); + void ReadHashDigests(unsigned numItems, CUInt32DefVector &crcs); + + void ReadPackInfo(CFolders &f); + + void ReadUnpackInfo( + const CObjectVector<CByteBuffer> *dataVector, + CFolders &folders); + + void ReadSubStreamsInfo( + CFolders &folders, + CRecordVector<UInt64> &unpackSizes, + CUInt32DefVector &digests); + + void ReadStreamsInfo( + const CObjectVector<CByteBuffer> *dataVector, + UInt64 &dataOffset, + CFolders &folders, + CRecordVector<UInt64> &unpackSizes, + CUInt32DefVector &digests); + + void ReadBoolVector(unsigned numItems, CBoolVector &v); + void ReadBoolVector2(unsigned numItems, CBoolVector &v); + void ReadUInt64DefVector(const CObjectVector<CByteBuffer> &dataVector, + CUInt64DefVector &v, unsigned numItems); + HRESULT ReadAndDecodePackedStreams( + DECL_EXTERNAL_CODECS_LOC_VARS + UInt64 baseOffset, UInt64 &dataOffset, + CObjectVector<CByteBuffer> &dataVector + _7Z_DECODER_CRYPRO_VARS_DECL + ); + HRESULT ReadHeader( + DECL_EXTERNAL_CODECS_LOC_VARS + CDbEx &db + _7Z_DECODER_CRYPRO_VARS_DECL + ); + HRESULT ReadDatabase2( + DECL_EXTERNAL_CODECS_LOC_VARS + CDbEx &db + _7Z_DECODER_CRYPRO_VARS_DECL + ); +public: + CInArchive(): _numInByteBufs(0) { } + HRESULT Open(IInStream *stream, const UInt64 *searchHeaderSizeLimit); // S_FALSE means is not archive + void Close(); + + HRESULT ReadDatabase( + DECL_EXTERNAL_CODECS_LOC_VARS + CDbEx &db + _7Z_DECODER_CRYPRO_VARS_DECL + ); +}; + +}} + +#endif |