HRESULT CZipDecoder::Decode(
DECL_EXTERNAL_CODECS_LOC_VARS
CInArchive &archive, const CItemEx &item,
ISequentialOutStream *realOutStream,
IArchiveExtractCallback *extractCallback,
ICompressProgressInfo *compressProgress,
UInt32 numThreads, Int32 &res)
{
res = NArchive::NExtract::NOperationResult::kDataError;
CInStreamReleaser inStreamReleaser;
bool needCRC = true;
bool wzAesMode = false;
bool pkAesMode = false;
UInt16 methodId = item.CompressionMethod;
if (item.IsEncrypted())
{
if (item.IsStrongEncrypted())
{
CStrongCryptoField f;
if (item.CentralExtra.GetStrongCryptoField(f))
{
pkAesMode = true;
}
if (!pkAesMode)
{
res = NArchive::NExtract::NOperationResult::kUnSupportedMethod;
return S_OK;
}
}
if (methodId == NFileHeader::NCompressionMethod::kWzAES)
{
CWzAesExtraField aesField;
if (item.CentralExtra.GetWzAesField(aesField))
{
wzAesMode = true;
needCRC = aesField.NeedCrc();
}
}
}
COutStreamWithCRC *outStreamSpec = new COutStreamWithCRC;
CMyComPtr<ISequentialOutStream> outStream = outStreamSpec;
outStreamSpec->SetStream(realOutStream);
outStreamSpec->Init(needCRC);
UInt64 authenticationPos;
CMyComPtr<ISequentialInStream> inStream;
{
UInt64 packSize = item.PackSize;
if (wzAesMode)
{
if (packSize < NCrypto::NWzAes::kMacSize)
return S_OK;
packSize -= NCrypto::NWzAes::kMacSize;
}
UInt64 dataPos = item.GetDataPosition();
inStream.Attach(archive.CreateLimitedStream(dataPos, packSize));
authenticationPos = dataPos + packSize;
}
CMyComPtr<ICompressFilter> cryptoFilter;
if (item.IsEncrypted())
{
if (wzAesMode)
{
CWzAesExtraField aesField;
if (!item.CentralExtra.GetWzAesField(aesField))
return S_OK;
methodId = aesField.Method;
if (!_wzAesDecoder)
{
_wzAesDecoderSpec = new NCrypto::NWzAes::CDecoder;
_wzAesDecoder = _wzAesDecoderSpec;
}
cryptoFilter = _wzAesDecoder;
Byte properties = aesField.Strength;
RINOK(_wzAesDecoderSpec->SetDecoderProperties2(&properties, 1));
}
else if (pkAesMode)
{
if (!_pkAesDecoder)
{
_pkAesDecoderSpec = new NCrypto::NZipStrong::CDecoder;
_pkAesDecoder = _pkAesDecoderSpec;
}
cryptoFilter = _pkAesDecoder;
}
else
{
if (!_zipCryptoDecoder)
{
_zipCryptoDecoderSpec = new NCrypto::NZip::CDecoder;
_zipCryptoDecoder = _zipCryptoDecoderSpec;
}
cryptoFilter = _zipCryptoDecoder;
}
CMyComPtr<ICryptoSetPassword> cryptoSetPassword;
RINOK(cryptoFilter.QueryInterface(IID_ICryptoSetPassword, &cryptoSetPassword));
if (!getTextPassword)
extractCallback->QueryInterface(IID_ICryptoGetTextPassword, (void **)&getTextPassword);
if (getTextPassword)
{
CMyComBSTR password;
RINOK(getTextPassword->CryptoGetTextPassword(&password));
AString charPassword;
if (wzAesMode || pkAesMode)
{
charPassword = UnicodeStringToMultiByte((const wchar_t *)password, CP_ACP);
/*
for (int i = 0;; i++)
{
wchar_t c = password[i];
if (c == 0)
break;
if (c >= 0x80)
{
res = NArchive::NExtract::NOperationResult::kDataError;
return S_OK;
}
charPassword += (char)c;
}
*/
}
else
{
// we use OEM. WinZip/Windows probably use ANSI for some files
charPassword = UnicodeStringToMultiByte((const wchar_t *)password, CP_OEMCP);
}
HRESULT result = cryptoSetPassword->CryptoSetPassword(
(const Byte *)(const char *)charPassword, charPassword.Length());
if (result != S_OK)
return S_OK;
}
else
{
RINOK(cryptoSetPassword->CryptoSetPassword(0, 0));
}
}
int m;
for (m = 0; m < methodItems.Size(); m++)
if (methodItems[m].ZipMethod == methodId)
break;
if (m == methodItems.Size())
{
CMethodItem mi;
mi.ZipMethod = methodId;
if (methodId == NFileHeader::NCompressionMethod::kStored)
mi.Coder = new NCompress::CCopyCoder;
else if (methodId == NFileHeader::NCompressionMethod::kShrunk)
mi.Coder = new NCompress::NShrink::CDecoder;
else if (methodId == NFileHeader::NCompressionMethod::kImploded)
mi.Coder = new NCompress::NImplode::NDecoder::CCoder;
else if (methodId == NFileHeader::NCompressionMethod::kLZMA)
mi.Coder = new CLzmaDecoder;
else
{
CMethodId szMethodID;
if (methodId == NFileHeader::NCompressionMethod::kBZip2)
szMethodID = kMethodId_BZip2;
else
{
if (methodId > 0xFF)
{
res = NArchive::NExtract::NOperationResult::kUnSupportedMethod;
return S_OK;
}
szMethodID = kMethodId_ZipBase + (Byte)methodId;
}
RINOK(CreateCoder(EXTERNAL_CODECS_LOC_VARS szMethodID, mi.Coder, false));
if (mi.Coder == 0)
{
res = NArchive::NExtract::NOperationResult::kUnSupportedMethod;
return S_OK;
}
}
m = methodItems.Add(mi);
}
ICompressCoder *coder = methodItems[m].Coder;
{
CMyComPtr<ICompressSetDecoderProperties2> setDecoderProperties;
coder->QueryInterface(IID_ICompressSetDecoderProperties2, (void **)&setDecoderProperties);
if (setDecoderProperties)
{
Byte properties = (Byte)item.Flags;
RINOK(setDecoderProperties->SetDecoderProperties2(&properties, 1));
}
}
#ifdef COMPRESS_MT
{
CMyComPtr<ICompressSetCoderMt> setCoderMt;
coder->QueryInterface(IID_ICompressSetCoderMt, (void **)&setCoderMt);
if (setCoderMt)
{
RINOK(setCoderMt->SetNumberOfThreads(numThreads));
}
}
#endif
{
HRESULT result = S_OK;
CMyComPtr<ISequentialInStream> inStreamNew;
if (item.IsEncrypted())
{
if (!filterStream)
{
filterStreamSpec = new CFilterCoder;
filterStream = filterStreamSpec;
}
filterStreamSpec->Filter = cryptoFilter;
if (wzAesMode)
{
result = _wzAesDecoderSpec->ReadHeader(inStream);
}
else if (pkAesMode)
{
result =_pkAesDecoderSpec->ReadHeader(inStream, item.FileCRC, item.UnPackSize);
if (result == S_OK)
{
bool passwOK;
result = _pkAesDecoderSpec->CheckPassword(passwOK);
if (result == S_OK && !passwOK)
result = S_FALSE;
}
}
else
{
result = _zipCryptoDecoderSpec->ReadHeader(inStream);
}
if (result == S_OK)
{
RINOK(filterStreamSpec->SetInStream(inStream));
inStreamReleaser.FilterCoder = filterStreamSpec;
inStreamNew = filterStream;
if (wzAesMode)
{
if (!_wzAesDecoderSpec->CheckPasswordVerifyCode())
result = S_FALSE;
}
}
}
else
inStreamNew = inStream;
if (result == S_OK)
result = coder->Code(inStreamNew, outStream, NULL, &item.UnPackSize, compressProgress);
if (result == S_FALSE)
return S_OK;
if (result == E_NOTIMPL)
{
res = NArchive::NExtract::NOperationResult::kUnSupportedMethod;
return S_OK;
}
RINOK(result);
}
bool crcOK = true;
bool authOk = true;
if (needCRC)
crcOK = (outStreamSpec->GetCRC() == item.FileCRC);
if (wzAesMode)
{
inStream.Attach(archive.CreateLimitedStream(authenticationPos, NCrypto::NWzAes::kMacSize));
if (_wzAesDecoderSpec->CheckMac(inStream, authOk) != S_OK)
authOk = false;
}
res = ((crcOK && authOk) ?
NArchive::NExtract::NOperationResult::kOK :
NArchive::NExtract::NOperationResult::kCRCError);
return S_OK;
}
HRESULT CDecoder::Decode(
DECL_EXTERNAL_CODECS_LOC_VARS
IInStream *inStream,
UInt64 startPos,
const UInt64 *packSizes,
const CFolder &folderInfo,
ISequentialOutStream *outStream,
ICompressProgressInfo *compressProgress
#ifndef _NO_CRYPTO
, ICryptoGetTextPassword *getTextPassword, bool &passwordIsDefined
#endif
#ifdef COMPRESS_MT
, bool mtMode, UInt32 numThreads
#endif
)
{
if (!folderInfo.CheckStructure())
return E_NOTIMPL;
#ifndef _NO_CRYPTO
passwordIsDefined = false;
#endif
CObjectVector< CMyComPtr<ISequentialInStream> > inStreams;
CLockedInStream lockedInStream;
lockedInStream.Init(inStream);
for (int j = 0; j < folderInfo.PackStreams.Size(); j++)
{
CLockedSequentialInStreamImp *lockedStreamImpSpec = new
CLockedSequentialInStreamImp;
CMyComPtr<ISequentialInStream> lockedStreamImp = lockedStreamImpSpec;
lockedStreamImpSpec->Init(&lockedInStream, startPos);
startPos += packSizes[j];
CLimitedSequentialInStream *streamSpec = new
CLimitedSequentialInStream;
CMyComPtr<ISequentialInStream> inStream = streamSpec;
streamSpec->SetStream(lockedStreamImp);
streamSpec->Init(packSizes[j]);
inStreams.Add(inStream);
}
int numCoders = folderInfo.Coders.Size();
CBindInfoEx bindInfo;
ConvertFolderItemInfoToBindInfo(folderInfo, bindInfo);
bool createNewCoders;
if (!_bindInfoExPrevIsDefined)
createNewCoders = true;
else
createNewCoders = !AreBindInfoExEqual(bindInfo, _bindInfoExPrev);
if (createNewCoders)
{
int i;
_decoders.Clear();
// _decoders2.Clear();
_mixerCoder.Release();
if (_multiThread)
{
_mixerCoderMTSpec = new NCoderMixer::CCoderMixer2MT;
_mixerCoder = _mixerCoderMTSpec;
_mixerCoderCommon = _mixerCoderMTSpec;
}
else
{
#ifdef _ST_MODE
_mixerCoderSTSpec = new NCoderMixer::CCoderMixer2ST;
_mixerCoder = _mixerCoderSTSpec;
_mixerCoderCommon = _mixerCoderSTSpec;
#endif
}
RINOK(_mixerCoderCommon->SetBindInfo(bindInfo));
for (i = 0; i < numCoders; i++)
{
const CCoderInfo &coderInfo = folderInfo.Coders[i];
CMyComPtr<ICompressCoder> decoder;
CMyComPtr<ICompressCoder2> decoder2;
RINOK(CreateCoder(
EXTERNAL_CODECS_LOC_VARS
coderInfo.MethodID, decoder, decoder2, false));
CMyComPtr<IUnknown> decoderUnknown;
if (coderInfo.IsSimpleCoder())
{
if (decoder == 0)
return E_NOTIMPL;
decoderUnknown = (IUnknown *)decoder;
if (_multiThread)
_mixerCoderMTSpec->AddCoder(decoder);
#ifdef _ST_MODE
else
_mixerCoderSTSpec->AddCoder(decoder, false);
#endif
}
else
{
if (decoder2 == 0)
return E_NOTIMPL;
decoderUnknown = (IUnknown *)decoder2;
if (_multiThread)
_mixerCoderMTSpec->AddCoder2(decoder2);
#ifdef _ST_MODE
else
_mixerCoderSTSpec->AddCoder2(decoder2, false);
#endif
}
_decoders.Add(decoderUnknown);
#ifdef EXTERNAL_CODECS
CMyComPtr<ISetCompressCodecsInfo> setCompressCodecsInfo;
decoderUnknown.QueryInterface(IID_ISetCompressCodecsInfo, (void **)&setCompressCodecsInfo);
if (setCompressCodecsInfo)
{
RINOK(setCompressCodecsInfo->SetCompressCodecsInfo(codecsInfo));
}
#endif
}
_bindInfoExPrev = bindInfo;
_bindInfoExPrevIsDefined = true;
}
int i;
_mixerCoderCommon->ReInit();
UInt32 packStreamIndex = 0, unpackStreamIndex = 0;
UInt32 coderIndex = 0;
// UInt32 coder2Index = 0;
for (i = 0; i < numCoders; i++)
{
const CCoderInfo &coderInfo = folderInfo.Coders[i];
CMyComPtr<IUnknown> &decoder = _decoders[coderIndex];
{
CMyComPtr<ICompressSetDecoderProperties2> setDecoderProperties;
decoder.QueryInterface(IID_ICompressSetDecoderProperties2, &setDecoderProperties);
if (setDecoderProperties)
{
const CByteBuffer &props = coderInfo.Props;
size_t size = props.GetCapacity();
if (size > 0xFFFFFFFF)
return E_NOTIMPL;
if (size > 0)
{
RINOK(setDecoderProperties->SetDecoderProperties2((const Byte *)props, (UInt32)size));
}
}
}
#ifdef COMPRESS_MT
if (mtMode)
{
CMyComPtr<ICompressSetCoderMt> setCoderMt;
decoder.QueryInterface(IID_ICompressSetCoderMt, &setCoderMt);
if (setCoderMt)
{
RINOK(setCoderMt->SetNumberOfThreads(numThreads));
}
}
#endif
#ifndef _NO_CRYPTO
{
CMyComPtr<ICryptoSetPassword> cryptoSetPassword;
decoder.QueryInterface(IID_ICryptoSetPassword, &cryptoSetPassword);
if (cryptoSetPassword)
{
if (getTextPassword == 0)
return E_FAIL;
CMyComBSTR passwordBSTR;
RINOK(getTextPassword->CryptoGetTextPassword(&passwordBSTR));
CByteBuffer buffer;
passwordIsDefined = true;
const UString password(passwordBSTR);
const UInt32 sizeInBytes = password.Length() * 2;
buffer.SetCapacity(sizeInBytes);
for (int i = 0; i < password.Length(); i++)
{
wchar_t c = password[i];
((Byte *)buffer)[i * 2] = (Byte)c;
((Byte *)buffer)[i * 2 + 1] = (Byte)(c >> 8);
}
RINOK(cryptoSetPassword->CryptoSetPassword((const Byte *)buffer, sizeInBytes));
}
}
#endif
coderIndex++;
UInt32 numInStreams = (UInt32)coderInfo.NumInStreams;
UInt32 numOutStreams = (UInt32)coderInfo.NumOutStreams;
CRecordVector<const UInt64 *> packSizesPointers;
CRecordVector<const UInt64 *> unpackSizesPointers;
packSizesPointers.Reserve(numInStreams);
unpackSizesPointers.Reserve(numOutStreams);
UInt32 j;
for (j = 0; j < numOutStreams; j++, unpackStreamIndex++)
unpackSizesPointers.Add(&folderInfo.UnpackSizes[unpackStreamIndex]);
for (j = 0; j < numInStreams; j++, packStreamIndex++)
{
int bindPairIndex = folderInfo.FindBindPairForInStream(packStreamIndex);
if (bindPairIndex >= 0)
packSizesPointers.Add(
&folderInfo.UnpackSizes[(UInt32)folderInfo.BindPairs[bindPairIndex].OutIndex]);
else
{
int index = folderInfo.FindPackStreamArrayIndex(packStreamIndex);
if (index < 0)
return E_FAIL;
packSizesPointers.Add(&packSizes[index]);
}
}
_mixerCoderCommon->SetCoderInfo(i,
&packSizesPointers.Front(),
&unpackSizesPointers.Front());
}
UInt32 mainCoder, temp;
bindInfo.FindOutStream(bindInfo.OutStreams[0], mainCoder, temp);
if (_multiThread)
_mixerCoderMTSpec->SetProgressCoderIndex(mainCoder);
/*
else
_mixerCoderSTSpec->SetProgressCoderIndex(mainCoder);;
*/
if (numCoders == 0)
return 0;
CRecordVector<ISequentialInStream *> inStreamPointers;
inStreamPointers.Reserve(inStreams.Size());
for (i = 0; i < inStreams.Size(); i++)
inStreamPointers.Add(inStreams[i]);
ISequentialOutStream *outStreamPointer = outStream;
return _mixerCoder->Code(&inStreamPointers.Front(), NULL,
inStreams.Size(), &outStreamPointer, NULL, 1, compressProgress);
}
HRESULT CEncoder::CreateMixerCoder(
DECL_EXTERNAL_CODECS_LOC_VARS
const UInt64 *inSizeForReduce)
{
_mixerCoderSpec = new NCoderMixer::CCoderMixer2MT;
_mixerCoder = _mixerCoderSpec;
RINOK(_mixerCoderSpec->SetBindInfo(_bindInfo));
for (int i = 0; i < _options.Methods.Size(); i++)
{
const CMethodFull &methodFull = _options.Methods[i];
_codersInfo.Add(CCoderInfo());
CCoderInfo &encodingInfo = _codersInfo.Back();
encodingInfo.MethodID = methodFull.Id;
CMyComPtr<ICompressCoder> encoder;
CMyComPtr<ICompressCoder2> encoder2;
RINOK(CreateCoder(
EXTERNAL_CODECS_LOC_VARS
methodFull.Id, encoder, encoder2, true));
if (!encoder && !encoder2)
return E_FAIL;
CMyComPtr<IUnknown> encoderCommon = encoder ? (IUnknown *)encoder : (IUnknown *)encoder2;
#ifndef _7ZIP_ST
{
CMyComPtr<ICompressSetCoderMt> setCoderMt;
encoderCommon.QueryInterface(IID_ICompressSetCoderMt, &setCoderMt);
if (setCoderMt)
{
RINOK(setCoderMt->SetNumberOfThreads(_options.NumThreads));
}
}
#endif
RINOK(SetMethodProperties(methodFull, inSizeForReduce, encoderCommon));
/*
CMyComPtr<ICryptoResetSalt> resetSalt;
encoderCommon.QueryInterface(IID_ICryptoResetSalt, (void **)&resetSalt);
if (resetSalt != NULL)
{
resetSalt->ResetSalt();
}
*/
#ifdef EXTERNAL_CODECS
CMyComPtr<ISetCompressCodecsInfo> setCompressCodecsInfo;
encoderCommon.QueryInterface(IID_ISetCompressCodecsInfo, (void **)&setCompressCodecsInfo);
if (setCompressCodecsInfo)
{
RINOK(setCompressCodecsInfo->SetCompressCodecsInfo(codecsInfo));
}
#endif
CMyComPtr<ICryptoSetPassword> cryptoSetPassword = new CCryptoSetPassword;
encoderCommon.QueryInterface(IID_ICryptoSetPassword, &cryptoSetPassword);
if (cryptoSetPassword)
{
UString & password = _options.Password;
/*
const UInt32 sizeInBytes = (_options.Password.Length()+1) * 2;
CByteBuffer buffer;
buffer.SetCapacity(sizeInBytes);
parallel::_for( 0,password.Length(),
[&buffer, &password]( int i, bool & breakFlag )
{
if( breakFlag )
return;
wchar_t c = password[i];
((Byte *)buffer)[i * 2] = (Byte)c;
((Byte *)buffer)[i * 2 + 1] = (Byte)(c >> 8);
}
, 4
);
buffer[sizeInBytes-1] = 0;
buffer[sizeInBytes-2] = 0;
RINOK(cryptoSetPassword->CryptoSetPassword((const Byte *)buffer, sizeInBytes-2));
*/
RINOK(cryptoSetPassword->CryptoSetPassword((const Byte *)(&_options.Password[0]), password.Length()*2));
}
if (encoder)
_mixerCoderSpec->AddCoder(encoder);
else
_mixerCoderSpec->AddCoder2(encoder2);
}
return S_OK;
}