diff options
Diffstat (limited to 'other-licenses/7zstub/src/CPP/7zip/Archive/7z/7zIn.h')
| -rw-r--r-- | other-licenses/7zstub/src/CPP/7zip/Archive/7z/7zIn.h | 435 |
1 files changed, 435 insertions, 0 deletions
diff --git a/other-licenses/7zstub/src/CPP/7zip/Archive/7z/7zIn.h b/other-licenses/7zstub/src/CPP/7zip/Archive/7z/7zIn.h new file mode 100644 index 0000000000..c5fb9095f0 --- /dev/null +++ b/other-licenses/7zstub/src/CPP/7zip/Archive/7z/7zIn.h @@ -0,0 +1,435 @@ +// 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, UString &password
+#define _7Z_DECODER_CRYPRO_VARS , getTextPassword, isEncrypted, passwordIsDefined, password
+#endif
+
+struct CParsedMethods
+{
+ Byte Lzma2Prop;
+ UInt32 LzmaDic;
+ CRecordVector<UInt64> IDs;
+
+ CParsedMethods(): Lzma2Prop(0), LzmaDic(0) {}
+};
+
+struct CFolderEx: public CFolder
+{
+ unsigned UnpackCoder;
+};
+
+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 bond 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;
+ void ParseFolderEx(unsigned folderIndex, CFolderEx &folder) const
+ {
+ ParseFolderInfo(folderIndex, folder);
+ folder.UnpackCoder = FoToMainUnpackSizeIndex[folderIndex];
+ }
+
+ unsigned GetNumFolderUnpackSizes(unsigned folderIndex) const
+ {
+ return (unsigned)(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];
+ }
+
+ CFolders(): NumPackStreams(0), NumFolders(0) {}
+
+ 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;
+ CUInt32DefVector Attrib;
+ CBoolVector IsAnti;
+ /*
+ CBoolVector 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();
+ Attrib.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 (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;
+
+ CObjArray<CNum> FolderStartFileIndex;
+ CObjArray<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.Free();
+ FileIndexToFolderIndexMap.Free();
+
+ HeadersSize = 0;
+ PhySize = 0;
+ }
+
+ void FillLinks();
+
+ UInt64 GetFolderStreamPos(CNum folderIndex, unsigned indexInFolder) const
+ {
+ return ArcInfo.DataStartPosition +
+ PackPositions[FoStartPackStreamIndex[folderIndex] + indexInFolder];
+ }
+
+ UInt64 GetFolderFullPackSize(CNum folderIndex) const
+ {
+ return
+ PackPositions[FoStartPackStreamIndex[folderIndex + 1]] -
+ PackPositions[FoStartPackStreamIndex[folderIndex]];
+ }
+
+ UInt64 GetFolderPackStreamSize(CNum folderIndex, unsigned streamIndex) const
+ {
+ size_t 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;
+
+ bool _useMixerMT;
+
+ 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;
+ }
+ }
+
+ 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 Read_UInt32_Vector(CUInt32DefVector &v);
+
+ 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(bool useMixerMT):
+ _numInByteBufs(0),
+ _useMixerMT(useMixerMT)
+ {}
+
+ 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
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