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annotate Core/HttpServer/MultipartStreamReader.h @ 3992:f9863630ec7f

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working on the shared library for Orthanc framework
author Sebastien Jodogne <s.jodogne@gmail.com>
date Fri, 05 Jun 2020 16:07:01 +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) 2017-2020 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 General Public License as
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9 * published by the Free Software Foundation, either version 3 of the
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10 * License, or (at your option) any later version.
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11 *
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12 * In addition, as a special exception, the copyright holders of this
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13 * program give permission to link the code of its release with the
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14 * OpenSSL project's "OpenSSL" library (or with modified versions of it
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15 * that use the same license as the "OpenSSL" library), and distribute
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16 * the linked executables. You must obey the GNU General Public License
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17 * in all respects for all of the code used other than "OpenSSL". If you
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18 * modify file(s) with this exception, you may extend this exception to
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19 * your version of the file(s), but you are not obligated to do so. If
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20 * you do not wish to do so, delete this exception statement from your
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21 * version. If you delete this exception statement from all source files
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22 * in the program, then also delete it here.
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23 *
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24 * This program is distributed in the hope that it will be useful, but
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25 * WITHOUT ANY WARRANTY; without even the implied warranty of
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26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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27 * General Public License for more details.
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28 *
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29 * You should have received a copy of the GNU General Public License
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30 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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31 **/
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32
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33
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34 #pragma once
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35
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36 #include "StringMatcher.h"
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37 #include "../ChunkedBuffer.h"
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38
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39 #include <map>
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40
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41 namespace Orthanc
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42 {
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43 class ORTHANC_PUBLIC MultipartStreamReader : public boost::noncopyable
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44 {
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45 public:
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46 typedef std::map<std::string, std::string> HttpHeaders;
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47
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48 class IHandler : public boost::noncopyable
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49 {
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50 public:
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51 virtual ~IHandler()
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52 {
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53 }
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54
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55 virtual void HandlePart(const HttpHeaders& headers,
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56 const void* part,
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57 size_t size) = 0;
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58 };
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59
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60 private:
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61 enum State
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62 {
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63 State_UnusedArea,
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64 State_Content,
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65 State_Done
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66 };
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67
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68 State state_;
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69 IHandler* handler_;
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70 StringMatcher headersMatcher_;
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71 StringMatcher boundaryMatcher_;
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72 ChunkedBuffer buffer_;
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73 size_t blockSize_;
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74
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75 void ParseStream();
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76
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77 public:
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78 MultipartStreamReader(const std::string& boundary);
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79
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80 void SetBlockSize(size_t size);
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81
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82 size_t GetBlockSize() const
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83 {
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84 return blockSize_;
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85 }
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86
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87 void SetHandler(IHandler& handler)
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88 {
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89 handler_ = &handler;
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90 }
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91
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92 void AddChunk(const void* chunk,
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93 size_t size);
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94
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95 void AddChunk(const std::string& chunk);
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96
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97 void CloseStream();
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98
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99 static bool GetMainContentType(std::string& contentType,
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100 const HttpHeaders& headers);
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101
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102 static bool ParseMultipartContentType(std::string& contentType,
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103 std::string& subType, // Possibly empty
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104 std::string& boundary,
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105 const std::string& contentTypeHeader);
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106 };
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107 }