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annotate OrthancFramework/Sources/FileStorage/StorageAccessor.cpp @ 4136:2724977419fb

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Fix DICOM SCP filters if some query tag has more than 256 characters
author Sebastien Jodogne <s.jodogne@gmail.com>
date Thu, 06 Aug 2020 15:55:03 +0200
parents bf7b9edf6b81
children 785a2713323e
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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 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 "../PrecompiledHeaders.h"
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24 #include "StorageAccessor.h"
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25
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26 #include "../Compatibility.h"
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27 #include "../Compression/ZlibCompressor.h"
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28 #include "../MetricsRegistry.h"
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29 #include "../OrthancException.h"
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30 #include "../Toolbox.h"
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31
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32 #if ORTHANC_ENABLE_CIVETWEB == 1 || ORTHANC_ENABLE_MONGOOSE == 1
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33 # include "../HttpServer/HttpStreamTranscoder.h"
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34 #endif
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35
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37 static const std::string METRICS_CREATE = "orthanc_storage_create_duration_ms";
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38 static const std::string METRICS_READ = "orthanc_storage_read_duration_ms";
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39 static const std::string METRICS_REMOVE = "orthanc_storage_remove_duration_ms";
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41
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42 namespace Orthanc
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43 {
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44 class StorageAccessor::MetricsTimer : public boost::noncopyable
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45 {
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46 private:
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47 std::unique_ptr<MetricsRegistry::Timer> timer_;
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48
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49 public:
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50 MetricsTimer(StorageAccessor& that,
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51 const std::string& name)
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52 {
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53 if (that.metrics_ != NULL)
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54 {
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55 timer_.reset(new MetricsRegistry::Timer(*that.metrics_, name));
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56 }
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57 }
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58 };
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59
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60
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61 FileInfo StorageAccessor::Write(const void* data,
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62 size_t size,
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63 FileContentType type,
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64 CompressionType compression,
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65 bool storeMd5)
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66 {
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67 std::string uuid = Toolbox::GenerateUuid();
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68
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69 std::string md5;
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70
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71 if (storeMd5)
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72 {
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73 Toolbox::ComputeMD5(md5, data, size);
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74 }
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75
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76 switch (compression)
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77 {
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78 case CompressionType_None:
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79 {
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80 MetricsTimer timer(*this, METRICS_CREATE);
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81
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82 area_.Create(uuid, data, size, type);
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83 return FileInfo(uuid, type, size, md5);
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84 }
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85
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86 case CompressionType_ZlibWithSize:
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87 {
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88 ZlibCompressor zlib;
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89
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90 std::string compressed;
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91 zlib.Compress(compressed, data, size);
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92
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93 std::string compressedMD5;
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94
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95 if (storeMd5)
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96 {
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97 Toolbox::ComputeMD5(compressedMD5, compressed);
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98 }
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99
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100 {
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101 MetricsTimer timer(*this, METRICS_CREATE);
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102
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103 if (compressed.size() > 0)
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104 {
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105 area_.Create(uuid, &compressed[0], compressed.size(), type);
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106 }
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107 else
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108 {
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109 area_.Create(uuid, NULL, 0, type);
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110 }
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111 }
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112
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113 return FileInfo(uuid, type, size, md5,
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114 CompressionType_ZlibWithSize, compressed.size(), compressedMD5);
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115 }
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116
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117 default:
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118 throw OrthancException(ErrorCode_NotImplemented);
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119 }
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120 }
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121
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122
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123 void StorageAccessor::Read(std::string& content,
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124 const FileInfo& info)
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125 {
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126 switch (info.GetCompressionType())
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127 {
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128 case CompressionType_None:
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129 {
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130 MetricsTimer timer(*this, METRICS_READ);
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131 area_.Read(content, info.GetUuid(), info.GetContentType());
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132 break;
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133 }
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134
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135 case CompressionType_ZlibWithSize:
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136 {
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137 ZlibCompressor zlib;
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138
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139 std::string compressed;
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140
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141 {
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142 MetricsTimer timer(*this, METRICS_READ);
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143 area_.Read(compressed, info.GetUuid(), info.GetContentType());
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144 }
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145
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146 IBufferCompressor::Uncompress(content, zlib, compressed);
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147 break;
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148 }
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149
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150 default:
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151 {
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152 throw OrthancException(ErrorCode_NotImplemented);
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153 }
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154 }
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155
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156 // TODO Check the validity of the uncompressed MD5?
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157 }
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158
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159
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160 void StorageAccessor::ReadRaw(std::string& content,
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161 const FileInfo& info)
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162 {
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163 MetricsTimer timer(*this, METRICS_READ);
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164 area_.Read(content, info.GetUuid(), info.GetContentType());
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165 }
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166
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167
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168 void StorageAccessor::Remove(const std::string& fileUuid,
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169 FileContentType type)
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170 {
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171 MetricsTimer timer(*this, METRICS_REMOVE);
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172 area_.Remove(fileUuid, type);
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173 }
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174
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175
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176 #if ORTHANC_ENABLE_CIVETWEB == 1 || ORTHANC_ENABLE_MONGOOSE == 1
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177 void StorageAccessor::SetupSender(BufferHttpSender& sender,
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178 const FileInfo& info,
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179 const std::string& mime)
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180 {
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181 {
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182 MetricsTimer timer(*this, METRICS_READ);
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183 area_.Read(sender.GetBuffer(), info.GetUuid(), info.GetContentType());
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184 }
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185
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186 sender.SetContentType(mime);
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187
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188 const char* extension;
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189 switch (info.GetContentType())
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190 {
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191 case FileContentType_Dicom:
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192 extension = ".dcm";
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193 break;
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194
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195 case FileContentType_DicomAsJson:
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196 extension = ".json";
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197 break;
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198
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199 default:
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200 // Non-standard content type
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201 extension = "";
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202 }
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203
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204 sender.SetContentFilename(info.GetUuid() + std::string(extension));
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205 }
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206 #endif
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207
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208
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209 #if ORTHANC_ENABLE_CIVETWEB == 1 || ORTHANC_ENABLE_MONGOOSE == 1
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210 void StorageAccessor::AnswerFile(HttpOutput& output,
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211 const FileInfo& info,
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212 const std::string& mime)
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213 {
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214 BufferHttpSender sender;
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215 SetupSender(sender, info, mime);
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216
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217 HttpStreamTranscoder transcoder(sender, info.GetCompressionType());
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218 output.Answer(transcoder);
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219 }
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220 #endif
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221
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222
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223 #if ORTHANC_ENABLE_CIVETWEB == 1 || ORTHANC_ENABLE_MONGOOSE == 1
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224 void StorageAccessor::AnswerFile(RestApiOutput& output,
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225 const FileInfo& info,
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226 const std::string& mime)
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227 {
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228 BufferHttpSender sender;
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229 SetupSender(sender, info, mime);
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230
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231 HttpStreamTranscoder transcoder(sender, info.GetCompressionType());
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232 output.AnswerStream(transcoder);
221
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233 }
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234 #endif
221
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235 }