lib3mf :

- primo commit.
2021-09-07 16:50:23 +02:00
parent a5a65b4c8d
commit f8c998f6ff
633 changed files with 108631 additions and 0 deletions
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+/*++
+
+Copyright (C) 2020 3MF Consortium (Original Author)
+
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this
+list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright notice,
+this list of conditions and the following disclaimer in the documentation
+and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+Abstract: This is a stub class implementation of CImportStream_Encrypted
+
+*/
+
+#include "Common/Platform/NMR_ImportStream_Encrypted.h"
+#include "Common/Platform/NMR_ImportStream_Unique_Memory.h"
+#include "Common/NMR_Exception.h"
+#include <vector>
+#include <array>
+namespace NMR {
+	CImportStream_Encrypted::CImportStream_Encrypted(PImportStream pEncryptedStream, ContentEncryptionDescriptor pDecryptContext)
+		:m_pEncryptedStream(pEncryptedStream), m_pDecryptContext(pDecryptContext)
+	{
+		if (nullptr == pEncryptedStream)
+			throw CNMRException(NMR_ERROR_INVALIDPOINTER);
+		m_header.readFrom(pEncryptedStream);
+	}
+
+	nfBool CImportStream_Encrypted::seekPosition(nfUint64 position, nfBool bHasToSucceed) {
+		return m_pEncryptedStream->seekPosition(position + m_header.headerSize(), bHasToSucceed);
+	}
+
+	nfBool CImportStream_Encrypted::seekForward(nfUint64 bytes, nfBool bHasToSucceed) {
+		return m_pEncryptedStream->seekForward(bytes, bHasToSucceed);
+	}
+
+	nfBool CImportStream_Encrypted::seekFromEnd(nfUint64 bytes, nfBool bHasToSucceed) {
+		if (m_pEncryptedStream->getPosition() + m_header.headerSize() >= bytes) {
+			return m_pEncryptedStream->seekFromEnd(bytes, bHasToSucceed);
+		} else if (bHasToSucceed) {
+			throw CNMRException(NMR_ERROR_COULDNOTSEEKSTREAM);
+		}
+		return false;
+	}
+
+	nfUint64 CImportStream_Encrypted::readIntoBuffer(nfByte * pBuffer, nfUint64 cbTotalBytesToRead, nfBool bNeedsToReadAll) {
+		std::vector<nfByte> decBuffer(cbTotalBytesToRead, 0);
+		nfUint64 bytesRead = m_pEncryptedStream->readIntoBuffer(decBuffer.data(), cbTotalBytesToRead, bNeedsToReadAll);
+		if (bytesRead > 0) {
+			nfUint64 decryted = m_pDecryptContext.m_fnCrypt(bytesRead, decBuffer.data(), pBuffer, m_pDecryptContext.m_sDekDecryptData);
+			if (decryted != bytesRead)
+				throw CNMRException(NMR_ERROR_CALCULATIONTERMINATED);
+		}
+		return bytesRead;
+	}
+
+	nfUint64 CImportStream_Encrypted::retrieveSize() {
+		return m_pEncryptedStream->retrieveSize() - m_header.headerSize();
+	}
+
+	void CImportStream_Encrypted::writeToFile(const nfWChar * pwszFileName) {
+		m_pEncryptedStream->writeToFile(pwszFileName);
+	}
+
+	PImportStream CImportStream_Encrypted::copyToMemory() {
+		nfUint64 cbStreamSize = retrieveSize();
+		return std::make_shared<CImportStream_Unique_Memory>(this, cbStreamSize, false);
+	}
+
+	nfUint64 CImportStream_Encrypted::getPosition() {
+		return m_pEncryptedStream->getPosition() - m_header.headerSize();
+	}
+
+
+}