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annotate OrthancFramework/Sources/HttpServer/MultipartStreamReader.h @ 4706:dbee8bd8ee1f

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author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 22 Jun 2021 09:13:03 +0200
parents 3d5d6e2dcf3f
children 7053502fbf97
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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) 2017-2021 Osimis S.A., Belgium
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6 *
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7 * This program is free software: you can redistribute it and/or
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8 * modify it under the terms of the GNU Lesser General Public License
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9 * as published by the Free Software Foundation, either version 3 of
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10 * the License, or (at your option) any later version.
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11 *
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12 * This program is distributed in the hope that it will be useful, but
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13 * WITHOUT ANY WARRANTY; without even the implied warranty of
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 * Lesser General Public License for more details.
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16 *
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17 * You should have received a copy of the GNU Lesser General Public
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18 * License along with this program. If not, see
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19 * <http://www.gnu.org/licenses/>.
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20 **/
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21
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22
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23 #pragma once
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24
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25 #include "CStringMatcher.h"
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26 #include "../ChunkedBuffer.h"
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27
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28 #include <map>
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29
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30 namespace Orthanc
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31 {
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32 class ORTHANC_PUBLIC MultipartStreamReader : public boost::noncopyable
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33 {
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34 public:
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35 typedef std::map<std::string, std::string> HttpHeaders;
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36
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37 class IHandler : public boost::noncopyable
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38 {
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39 public:
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40 virtual ~IHandler()
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41 {
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42 }
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43
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44 virtual void HandlePart(const HttpHeaders& headers,
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45 const void* part,
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46 size_t size) = 0;
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47 };
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48
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49 private:
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50 enum State
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51 {
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52 State_UnusedArea,
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53 State_Content,
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54 State_Done
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55 };
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56
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57 State state_;
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58 IHandler* handler_;
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59 CStringMatcher headersMatcher_;
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60 CStringMatcher boundaryMatcher_;
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61 ChunkedBuffer buffer_;
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62 size_t blockSize_;
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63
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64 void ParseBlock(const void* data,
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65 size_t size);
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66
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67 void ParseStream();
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68
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69 public:
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70 explicit MultipartStreamReader(const std::string& boundary);
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71
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72 void SetBlockSize(size_t size);
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73
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74 size_t GetBlockSize() const;
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75
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76 void SetHandler(IHandler& handler);
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77
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78 void AddChunk(const void* chunk,
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79 size_t size);
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80
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81 void AddChunk(const std::string& chunk);
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82
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83 void CloseStream();
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84
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85 static bool GetMainContentType(std::string& contentType,
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86 const HttpHeaders& headers);
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87
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88 static bool ParseMultipartContentType(std::string& contentType,
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89 std::string& subType, // Possibly empty
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90 std::string& boundary,
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91 const std::string& contentTypeHeader);
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92
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93 static bool ParseHeaderArguments(std::string& main,
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94 std::map<std::string, std::string>& arguments,
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95 const std::string& header);
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96 };
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97 }