Mercurial > hg > orthanc
view OrthancFramework/Sources/HttpServer/HttpStreamTranscoder.h @ 4544:ae63b301d522 Orthanc-1.7.4
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author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Tue, 02 Mar 2021 16:52:26 +0100 |
parents | 2d5209153b32 |
children | db3932f9660d |
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/** * Orthanc - A Lightweight, RESTful DICOM Store * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics * Department, University Hospital of Liege, Belgium * Copyright (C) 2017-2020 Osimis S.A., Belgium * * This program is free software: you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public License * as published by the Free Software Foundation, either version 3 of * the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this program. If not, see * <http://www.gnu.org/licenses/>. **/ #pragma once #include "BufferHttpSender.h" #include "../Compatibility.h" #include <memory> // For std::unique_ptr namespace Orthanc { class ORTHANC_PUBLIC HttpStreamTranscoder : public IHttpStreamAnswer { private: IHttpStreamAnswer& source_; CompressionType sourceCompression_; uint64_t bytesToSkip_; uint64_t skipped_; uint64_t currentChunkOffset_; bool ready_; std::unique_ptr<BufferHttpSender> uncompressed_; void ReadSource(std::string& buffer); HttpCompression SetupZlibCompression(bool deflateAllowed); public: HttpStreamTranscoder(IHttpStreamAnswer& source, CompressionType compression) : source_(source), sourceCompression_(compression), bytesToSkip_(0), skipped_(0), currentChunkOffset_(0), ready_(false) { } // This is the first method to be called virtual HttpCompression SetupHttpCompression(bool gzipAllowed, bool deflateAllowed) ORTHANC_OVERRIDE; virtual bool HasContentFilename(std::string& filename) ORTHANC_OVERRIDE { return source_.HasContentFilename(filename); } virtual std::string GetContentType() ORTHANC_OVERRIDE { return source_.GetContentType(); } virtual uint64_t GetContentLength() ORTHANC_OVERRIDE; virtual bool ReadNextChunk() ORTHANC_OVERRIDE; virtual const char* GetChunkContent() ORTHANC_OVERRIDE; virtual size_t GetChunkSize() ORTHANC_OVERRIDE; }; }