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annotate OrthancStone/Sources/Oracle/ParseDicomSuccessMessage.cpp @ 1623:74be0f498b08

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Updated mechanism to avoid using deleted objects in RequestAnimationFrame callbacks.
author Benjamin Golinvaux <bgo@osimis.io>
date Wed, 04 Nov 2020 11:39:15 +0100
parents 8563ea5d8ae4
children 9ac2a65d4172
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1 /**
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2 * Stone of Orthanc
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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 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 #include "ParseDicomSuccessMessage.h"
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24
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25 #include <DicomParsing/ParsedDicomFile.h>
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26 #include <HttpServer/MultipartStreamReader.h>
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27 #include <OrthancException.h>
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28
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29 namespace OrthancStone
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30 {
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31 class MultipartHandler : public Orthanc::MultipartStreamReader::IHandler
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32 {
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33 private:
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34 std::unique_ptr<Orthanc::ParsedDicomFile> dicom_;
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35 size_t size_;
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36
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37 public:
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38 MultipartHandler() :
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39 size_(0)
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40 {
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41 }
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42
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43 virtual void HandlePart(const std::map<std::string, std::string>& headers,
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44 const void* part,
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45 size_t size) ORTHANC_OVERRIDE
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46 {
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47 if (dicom_.get())
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48 {
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49 throw Orthanc::OrthancException(Orthanc::ErrorCode_NetworkProtocol,
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50 "Multiple DICOM instances were contained in a WADO-RS request");
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51 }
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52 else
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53 {
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54 dicom_.reset(new Orthanc::ParsedDicomFile(part, size));
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55 size_ = size;
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56 }
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57 }
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58
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59 Orthanc::ParsedDicomFile* ReleaseDicom()
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60 {
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61 if (dicom_.get())
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62 {
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63 return dicom_.release();
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64 }
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65 else
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66 {
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67 throw Orthanc::OrthancException(Orthanc::ErrorCode_NetworkProtocol,
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68 "WADO-RS request didn't contain any DICOM instance");
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69 }
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70 }
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71
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72 size_t GetSize() const
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73 {
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74 return size_;
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75 }
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76 };
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77
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78
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79 Orthanc::ParsedDicomFile* ParseDicomSuccessMessage::ParseWadoAnswer(
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80 size_t& fileSize /* OUT */,
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81 const std::string& answer,
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82 const std::map<std::string, std::string>& headers)
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83 {
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84 std::string contentType, subType, boundary, header;
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85 if (Orthanc::MultipartStreamReader::GetMainContentType(header, headers) &&
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86 Orthanc::MultipartStreamReader::ParseMultipartContentType(contentType, subType, boundary, header) &&
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87 contentType == "multipart/related" &&
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88 subType == "application/dicom")
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89 {
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90 MultipartHandler handler;
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91
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92 {
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93 Orthanc::MultipartStreamReader reader(boundary);
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94 reader.SetHandler(handler);
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95 reader.AddChunk(answer);
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96 reader.CloseStream();
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97 }
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98
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99 fileSize = handler.GetSize();
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100 return handler.ReleaseDicom();
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101 }
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102 else
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103 {
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104 throw Orthanc::OrthancException(Orthanc::ErrorCode_NetworkProtocol,
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105 "Multipart/related answer of application/dicom was expected from DICOMweb server");
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106 }
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107 }
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108 }