STDMETHODIMP CHandler::Open(IInStream *stream,
const UInt64 *maxCheckStartPosition,
IArchiveOpenCallback *openArchiveCallback)
{
COM_TRY_BEGIN
Close();
try
{
CMyComPtr<IArchiveOpenVolumeCallback> openVolumeCallback;
CMyComPtr<ICryptoGetTextPassword> getTextPassword;
CMyComPtr<IArchiveOpenCallback> openArchiveCallbackWrap = openArchiveCallback;
CVolumeName seqName;
if (openArchiveCallback != NULL)
{
openArchiveCallbackWrap.QueryInterface(IID_IArchiveOpenVolumeCallback, &openVolumeCallback);
RINOK(openArchiveCallback->SetTotal(NULL, NULL));
UInt64 numFiles = _items.Size();
RINOK(openArchiveCallback->SetCompleted(&numFiles, NULL));
openArchiveCallbackWrap.QueryInterface(IID_ICryptoGetTextPassword, &getTextPassword);
}
for (;;)
{
CMyComPtr<IInStream> inStream;
if (!_archives.IsEmpty())
{
if (!openVolumeCallback)
break;
if(_archives.Size() == 1)
{
if (!_archiveInfo.IsVolume())
break;
UString baseName;
{
NCOM::CPropVariant prop;
RINOK(openVolumeCallback->GetProperty(kpidName, &prop));
if (prop.vt != VT_BSTR)
break;
baseName = prop.bstrVal;
}
seqName.InitName(baseName, _archiveInfo.HaveNewVolumeName());
}
UString fullName = seqName.GetNextName();
HRESULT result = openVolumeCallback->GetStream(fullName, &inStream);
if (result == S_FALSE)
break;
if (result != S_OK)
return result;
if (!stream)
break;
}
else
inStream = stream;
NArchive::NRar::CInArchive archive;
if(!archive.Open(inStream, maxCheckStartPosition))
return S_FALSE;
if (_archives.IsEmpty())
archive.GetArchiveInfo(_archiveInfo);
CItemEx item;
for (;;)
{
HRESULT result = archive.GetNextItem(item, getTextPassword);
if (result == S_FALSE)
break;
RINOK(result);
if (item.IgnoreItem())
continue;
bool needAdd = true;
if (item.IsSplitBefore())
{
if (!_refItems.IsEmpty())
{
CRefItem &refItem = _refItems.Back();
refItem.NumItems++;
needAdd = false;
}
}
if (needAdd)
{
CRefItem refItem;
refItem.ItemIndex = _items.Size();
refItem.NumItems = 1;
refItem.VolumeIndex = _archives.Size();
_refItems.Add(refItem);
}
_items.Add(item);
if (openArchiveCallback != NULL)
{
UInt64 numFiles = _items.Size();
RINOK(openArchiveCallback->SetCompleted(&numFiles, NULL));
}
}
_archives.Add(archive);
}
}
catch(...)
{
return S_FALSE;
}
return S_OK;
COM_TRY_END
}
HRESULT CHandler::Open2(IInStream *stream,
const UInt64 *maxCheckStartPosition,
IArchiveOpenCallback *openArchiveCallback)
{
{
CMyComPtr<IArchiveOpenVolumeCallback> openVolumeCallback;
CMyComPtr<ICryptoGetTextPassword> getTextPassword;
CMyComPtr<IArchiveOpenCallback> openArchiveCallbackWrap = openArchiveCallback;
CVolumeName seqName;
UInt64 totalBytes = 0;
UInt64 curBytes = 0;
if (openArchiveCallback != NULL)
{
openArchiveCallbackWrap.QueryInterface(IID_IArchiveOpenVolumeCallback, &openVolumeCallback);
openArchiveCallbackWrap.QueryInterface(IID_ICryptoGetTextPassword, &getTextPassword);
}
for (;;)
{
CMyComPtr<IInStream> inStream;
if (!_archives.IsEmpty())
{
if (!openVolumeCallback)
break;
if (_archives.Size() == 1)
{
if (!_archiveInfo.IsVolume())
break;
UString baseName;
{
NCOM::CPropVariant prop;
RINOK(openVolumeCallback->GetProperty(kpidName, &prop));
if (prop.vt != VT_BSTR)
break;
baseName = prop.bstrVal;
}
seqName.InitName(baseName, _archiveInfo.HaveNewVolumeName());
}
UString fullName = seqName.GetNextName();
HRESULT result = openVolumeCallback->GetStream(fullName, &inStream);
if (result == S_FALSE)
break;
if (result != S_OK)
return result;
if (!stream)
break;
}
else
inStream = stream;
UInt64 endPos = 0;
if (openArchiveCallback != NULL)
{
RINOK(stream->Seek(0, STREAM_SEEK_END, &endPos));
RINOK(stream->Seek(0, STREAM_SEEK_SET, NULL));
totalBytes += endPos;
RINOK(openArchiveCallback->SetTotal(NULL, &totalBytes));
}
NArchive::NRar::CInArchive archive;
RINOK(archive.Open(inStream, maxCheckStartPosition));
if (_archives.IsEmpty())
archive.GetArchiveInfo(_archiveInfo);
CItemEx item;
for (;;)
{
bool decryptionError;
HRESULT result = archive.GetNextItem(item, getTextPassword, decryptionError);
if (result == S_FALSE)
{
if (decryptionError && _items.IsEmpty())
return S_FALSE;
break;
}
RINOK(result);
if (item.IgnoreItem())
continue;
bool needAdd = true;
if (item.IsSplitBefore())
{
if (!_refItems.IsEmpty())
{
CRefItem &refItem = _refItems.Back();
refItem.NumItems++;
needAdd = false;
}
}
if (needAdd)
{
CRefItem refItem;
refItem.ItemIndex = _items.Size();
refItem.NumItems = 1;
refItem.VolumeIndex = _archives.Size();
_refItems.Add(refItem);
}
_items.Add(item);
if (openArchiveCallback != NULL && _items.Size() % 100 == 0)
{
UInt64 numFiles = _items.Size();
UInt64 numBytes = curBytes + item.Position;
RINOK(openArchiveCallback->SetCompleted(&numFiles, &numBytes));
}
}
curBytes += endPos;
_archives.Add(archive);
}
}
return S_OK;
}