// Copyright 2014 PDFium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com #ifndef CORE_FXCRT_CFX_CHECKSUMCONTEXT_H_ #define CORE_FXCRT_CFX_CHECKSUMCONTEXT_H_ #include <memory> #include "core/fdrm/crypto/fx_crypt.h" #include "core/fxcrt/xml/cfx_saxreader.h" class CFX_ChecksumContext { public: CFX_ChecksumContext(); ~CFX_ChecksumContext(); void StartChecksum(); void Update(const ByteStringView& bsText); bool UpdateChecksum(const RetainPtr<IFX_SeekableReadStream>& pSrcFile, FX_FILESIZE offset = 0, size_t size = 0); void FinishChecksum(); ByteString GetChecksum() const; private: std::unique_ptr<CFX_SAXReader> m_pSAXReader; std::unique_ptr<CRYPT_sha1_context> m_pByteContext; ByteString m_bsChecksum; }; #endif // CORE_FXCRT_CFX_CHECKSUMCONTEXT_H_