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// 7zExtract.cpp
#include "StdAfx.h"
#include "../../../Common/ComTry.h"
#include "../../Common/ProgressUtils.h"
#include "7zDecode.h"
// #include "7z1Decode.h"
#include "7zFolderOutStream.h"
#include "7zHandler.h"
namespace NArchive {
namespace N7z {
struct CExtractFolderInfo
{
#ifdef _7Z_VOL
int VolumeIndex;
#endif
CNum FileIndex;
CNum FolderIndex;
CBoolVector ExtractStatuses;
UInt64 UnpackSize;
CExtractFolderInfo(
#ifdef _7Z_VOL
int volumeIndex,
#endif
CNum fileIndex, CNum folderIndex):
#ifdef _7Z_VOL
VolumeIndex(volumeIndex),
#endif
FileIndex(fileIndex),
FolderIndex(folderIndex),
UnpackSize(0)
{
if (fileIndex != kNumNoIndex)
{
ExtractStatuses.ClearAndSetSize(1);
ExtractStatuses[0] = true;
}
};
};
STDMETHODIMP CHandler::Extract(const UInt32 *indices, UInt32 numItems,
Int32 testModeSpec, IArchiveExtractCallback *extractCallbackSpec)
{
COM_TRY_BEGIN
bool testMode = (testModeSpec != 0);
CMyComPtr<IArchiveExtractCallback> extractCallback = extractCallbackSpec;
UInt64 importantTotalUnpacked = 0;
bool allFilesMode = (numItems == (UInt32)(Int32)-1);
if (allFilesMode)
numItems =
#ifdef _7Z_VOL
_refs.Size();
#else
_db.Files.Size();
#endif
if (numItems == 0)
return S_OK;
/*
if (_volumes.Size() != 1)
return E_FAIL;
const CVolume &volume = _volumes.Front();
const CDbEx &_db = volume.Database;
IInStream *_inStream = volume.Stream;
*/
CObjectVector<CExtractFolderInfo> extractFolderInfoVector;
for (UInt32 ii = 0; ii < numItems; ii++)
{
// UInt32 fileIndex = allFilesMode ? indexIndex : indices[indexIndex];
UInt32 ref2Index = allFilesMode ? ii : indices[ii];
// const CRef2 &ref2 = _refs[ref2Index];
// for (UInt32 ri = 0; ri < ref2.Refs.Size(); ri++)
{
#ifdef _7Z_VOL
// const CRef &ref = ref2.Refs[ri];
const CRef &ref = _refs[ref2Index];
int volumeIndex = ref.VolumeIndex;
const CVolume &volume = _volumes[volumeIndex];
const CDbEx &db = volume.Database;
UInt32 fileIndex = ref.ItemIndex;
#else
const CDbEx &db = _db;
UInt32 fileIndex = ref2Index;
#endif
CNum folderIndex = db.FileIndexToFolderIndexMap[fileIndex];
if (folderIndex == kNumNoIndex)
{
extractFolderInfoVector.Add(CExtractFolderInfo(
#ifdef _7Z_VOL
volumeIndex,
#endif
fileIndex, kNumNoIndex));
continue;
}
if (extractFolderInfoVector.IsEmpty() ||
folderIndex != extractFolderInfoVector.Back().FolderIndex
#ifdef _7Z_VOL
|| volumeIndex != extractFolderInfoVector.Back().VolumeIndex
#endif
)
{
extractFolderInfoVector.Add(CExtractFolderInfo(
#ifdef _7Z_VOL
volumeIndex,
#endif
kNumNoIndex, folderIndex));
UInt64 unpackSize = db.GetFolderUnpackSize(folderIndex);
importantTotalUnpacked += unpackSize;
extractFolderInfoVector.Back().UnpackSize = unpackSize;
}
CExtractFolderInfo &efi = extractFolderInfoVector.Back();
// const CFolderInfo &folderInfo = m_dam_Folders[folderIndex];
CNum startIndex = db.FolderStartFileIndex[folderIndex];
for (CNum index = efi.ExtractStatuses.Size();
index <= fileIndex - startIndex; index++)
{
// UInt64 unpackSize = _db.Files[startIndex + index].UnpackSize;
// Count partial_folder_size
// efi.UnpackSize += unpackSize;
// importantTotalUnpacked += unpackSize;
efi.ExtractStatuses.Add(index == fileIndex - startIndex);
}
}
}
RINOK(extractCallback->SetTotal(importantTotalUnpacked));
CDecoder decoder(
#ifdef _ST_MODE
false
#else
true
#endif
);
// CDecoder1 decoder;
UInt64 totalPacked = 0;
UInt64 totalUnpacked = 0;
UInt64 curPacked, curUnpacked;
CLocalProgress *lps = new CLocalProgress;
CMyComPtr<ICompressProgressInfo> progress = lps;
lps->Init(extractCallback, false);
for (unsigned i = 0;; i++, totalUnpacked += curUnpacked, totalPacked += curPacked)
{
lps->OutSize = totalUnpacked;
lps->InSize = totalPacked;
RINOK(lps->SetCur());
if (i >= extractFolderInfoVector.Size())
break;
const CExtractFolderInfo &efi = extractFolderInfoVector[i];
curUnpacked = efi.UnpackSize;
curPacked = 0;
CFolderOutStream *folderOutStream = new CFolderOutStream;
CMyComPtr<ISequentialOutStream> outStream(folderOutStream);
#ifdef _7Z_VOL
const CVolume &volume = _volumes[efi.VolumeIndex];
const CDbEx &db = volume.Database;
#else
const CDbEx &db = _db;
#endif
CNum startIndex;
if (efi.FileIndex != kNumNoIndex)
startIndex = efi.FileIndex;
else
startIndex = db.FolderStartFileIndex[efi.FolderIndex];
HRESULT result = folderOutStream->Init(&db,
#ifdef _7Z_VOL
volume.StartRef2Index,
#else
0,
#endif
startIndex,
&efi.ExtractStatuses, extractCallback, testMode, _crcSize != 0);
RINOK(result);
if (efi.FileIndex != kNumNoIndex)
continue;
CNum folderIndex = efi.FolderIndex;
curPacked = _db.GetFolderFullPackSize(folderIndex);
#ifndef _NO_CRYPTO
CMyComPtr<ICryptoGetTextPassword> getTextPassword;
if (extractCallback)
extractCallback.QueryInterface(IID_ICryptoGetTextPassword, &getTextPassword);
#endif
try
{
#ifndef _NO_CRYPTO
bool isEncrypted = false;
bool passwordIsDefined = false;
#endif
HRESULT result = decoder.Decode(
EXTERNAL_CODECS_VARS
#ifdef _7Z_VOL
volume.Stream,
#else
_inStream,
#endif
db.ArcInfo.DataStartPosition,
db, folderIndex,
outStream,
progress
_7Z_DECODER_CRYPRO_VARS
#if !defined(_7ZIP_ST) && !defined(_SFX)
, true, _numThreads
#endif
);
if (result == S_FALSE)
{
RINOK(folderOutStream->FlushCorrupted(NExtract::NOperationResult::kDataError));
continue;
}
if (result == E_NOTIMPL)
{
RINOK(folderOutStream->FlushCorrupted(NExtract::NOperationResult::kUnsupportedMethod));
continue;
}
if (result != S_OK)
return result;
if (folderOutStream->WasWritingFinished() != S_OK)
{
RINOK(folderOutStream->FlushCorrupted(NExtract::NOperationResult::kDataError));
continue;
}
}
catch(...)
{
RINOK(folderOutStream->FlushCorrupted(NExtract::NOperationResult::kDataError));
continue;
}
}
return S_OK;
COM_TRY_END
}
}}
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