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annotate OrthancFramework/Sources/HttpServer/MultipartStreamReader.h @ 5639:b6a6179a2a69

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author Alain Mazy <am@orthanc.team>
date Fri, 24 May 2024 15:11:28 +0200
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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
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5 * Copyright (C) 2017-2024 Osimis S.A., Belgium
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6 * Copyright (C) 2021-2024 Sebastien Jodogne, ICTEAM UCLouvain, Belgium
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7 *
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8 * This program is free software: you can redistribute it and/or
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9 * modify it under the terms of the GNU Lesser General Public License
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10 * as published by the Free Software Foundation, either version 3 of
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11 * the License, or (at your option) any later version.
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12 *
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13 * This program is distributed in the hope that it will be useful, but
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14 * WITHOUT ANY WARRANTY; without even the implied warranty of
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15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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16 * Lesser General Public License for more details.
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17 *
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18 * You should have received a copy of the GNU Lesser General Public
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19 * License along with this program. If not, see
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20 * <http://www.gnu.org/licenses/>.
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21 **/
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23
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24 #pragma once
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25
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26 #include "CStringMatcher.h"
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27 #include "../ChunkedBuffer.h"
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28
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29 #include <map>
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30
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31 namespace Orthanc
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32 {
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33 class ORTHANC_PUBLIC MultipartStreamReader : public boost::noncopyable
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34 {
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35 public:
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36 typedef std::map<std::string, std::string> HttpHeaders;
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37
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38 class IHandler : public boost::noncopyable
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39 {
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40 public:
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41 virtual ~IHandler()
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42 {
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43 }
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45 virtual void HandlePart(const HttpHeaders& headers,
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46 const void* part,
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47 size_t size) = 0;
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48 };
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49
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50 private:
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51 enum State
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52 {
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53 State_UnusedArea,
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54 State_Content,
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55 State_Done
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56 };
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57
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58 State state_;
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59 IHandler* handler_;
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60 CStringMatcher headersMatcher_;
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61 CStringMatcher boundaryMatcher_;
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62 ChunkedBuffer buffer_;
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63 size_t blockSize_;
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64
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65 void ParseBlock(const void* data,
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66 size_t size);
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67
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68 void ParseStream();
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69
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70 public:
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71 explicit MultipartStreamReader(const std::string& boundary);
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72
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73 void SetBlockSize(size_t size);
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74
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75 size_t GetBlockSize() const;
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76
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77 void SetHandler(IHandler& handler);
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78
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79 void AddChunk(const void* chunk,
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80 size_t size);
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81
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82 void AddChunk(const std::string& chunk);
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83
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84 void CloseStream();
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85
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86 static bool GetMainContentType(std::string& contentType,
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87 const HttpHeaders& headers);
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88
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89 static bool ParseMultipartContentType(std::string& contentType,
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90 std::string& subType, // Possibly empty
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91 std::string& boundary,
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92 const std::string& contentTypeHeader);
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93
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94 static bool ParseHeaderArguments(std::string& main,
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95 std::map<std::string, std::string>& arguments,
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96 const std::string& header);
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97 };
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98 }