72 lines
2.3 KiB
C++
72 lines
2.3 KiB
C++
/**
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* Orthanc - A Lightweight, RESTful DICOM Store
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* Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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* Department, University Hospital of Liege, Belgium
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* Copyright (C) 2017-2023 Osimis S.A., Belgium
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* Copyright (C) 2024-2025 Orthanc Team SRL, Belgium
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* Copyright (C) 2021-2025 Sebastien Jodogne, ICTEAM UCLouvain, Belgium
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*
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* This program is free software: you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation, either version 3 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this program. If not, see
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* <http://www.gnu.org/licenses/>.
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**/
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#pragma once
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#include "BufferHttpSender.h"
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#include "../Compatibility.h"
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#include <memory> // For std::unique_ptr
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namespace Orthanc
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{
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class ORTHANC_PUBLIC HttpStreamTranscoder : public IHttpStreamAnswer
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{
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private:
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IHttpStreamAnswer& source_;
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CompressionType sourceCompression_;
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uint64_t bytesToSkip_;
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uint64_t skipped_;
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uint64_t currentChunkOffset_;
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bool ready_;
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std::unique_ptr<BufferHttpSender> uncompressed_;
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void ReadSource(std::string& buffer);
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HttpCompression SetupZlibCompression(bool deflateAllowed);
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public:
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HttpStreamTranscoder(IHttpStreamAnswer& source,
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CompressionType compression);
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// This is the first method to be called
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virtual HttpCompression SetupHttpCompression(bool gzipAllowed,
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bool deflateAllowed) ORTHANC_OVERRIDE;
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virtual bool HasContentFilename(std::string& filename) ORTHANC_OVERRIDE;
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virtual std::string GetContentType() ORTHANC_OVERRIDE;
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virtual uint64_t GetContentLength() ORTHANC_OVERRIDE;
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virtual bool ReadNextChunk() ORTHANC_OVERRIDE;
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virtual const char* GetChunkContent() ORTHANC_OVERRIDE;
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virtual size_t GetChunkSize() ORTHANC_OVERRIDE;
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};
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}
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