Mercurial > hg > orthanc
annotate OrthancServer/OrthancFindRequestHandler.cpp @ 1888:512b6e76f531
Lua: "IncomingFindRequestFilter()" to apply filters to incoming C-Find requests
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Fri, 11 Dec 2015 16:39:51 +0100 |
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children | d7f63122c7f3 |
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1 /** |
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2 * Orthanc - A Lightweight, RESTful DICOM Store |
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3 * Copyright (C) 2012-2015 Sebastien Jodogne, Medical Physics |
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4 * Department, University Hospital of Liege, Belgium |
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5 * |
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6 * This program is free software: you can redistribute it and/or |
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7 * modify it under the terms of the GNU General Public License as |
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8 * published by the Free Software Foundation, either version 3 of the |
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9 * License, or (at your option) any later version. |
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10 * |
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11 * In addition, as a special exception, the copyright holders of this |
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12 * program give permission to link the code of its release with the |
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13 * OpenSSL project's "OpenSSL" library (or with modified versions of it |
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14 * that use the same license as the "OpenSSL" library), and distribute |
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15 * the linked executables. You must obey the GNU General Public License |
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16 * in all respects for all of the code used other than "OpenSSL". If you |
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17 * modify file(s) with this exception, you may extend this exception to |
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18 * your version of the file(s), but you are not obligated to do so. If |
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19 * you do not wish to do so, delete this exception statement from your |
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20 * version. If you delete this exception statement from all source files |
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21 * in the program, then also delete it here. |
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22 * |
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23 * This program is distributed in the hope that it will be useful, but |
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24 * WITHOUT ANY WARRANTY; without even the implied warranty of |
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25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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26 * General Public License for more details. |
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27 * |
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28 * You should have received a copy of the GNU General Public License |
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29 * along with this program. If not, see <http://www.gnu.org/licenses/>. |
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30 **/ |
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31 |
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32 |
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33 #include "PrecompiledHeadersServer.h" |
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34 #include "OrthancFindRequestHandler.h" |
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35 |
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36 #include "../Core/DicomFormat/DicomArray.h" |
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37 #include "../Core/Lua/LuaFunctionCall.h" |
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38 #include "../Core/Logging.h" |
795 | 39 #include "FromDcmtkBridge.h" |
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40 #include "OrthancInitialization.h" |
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41 #include "Search/LookupResource.h" |
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42 #include "ServerToolbox.h" |
608 | 43 |
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44 #include <boost/regex.hpp> |
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45 |
608 | 46 |
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47 namespace Orthanc |
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48 { |
608 | 49 static void AddAnswer(DicomFindAnswers& answers, |
50 const Json::Value& resource, | |
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51 const DicomArray& query, |
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52 const std::list<DicomTag>& sequencesToReturn) |
608 | 53 { |
54 DicomMap result; | |
55 | |
56 for (size_t i = 0; i < query.GetSize(); i++) | |
57 { | |
1346 | 58 if (query.GetElement(i).GetTag() == DICOM_TAG_QUERY_RETRIEVE_LEVEL) |
59 { | |
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60 // Fix issue 30 on Google Code (QR response missing "Query/Retrieve Level" (008,0052)) |
1346 | 61 result.SetValue(query.GetElement(i).GetTag(), query.GetElement(i).GetValue()); |
62 } | |
63 else if (query.GetElement(i).GetTag() == DICOM_TAG_SPECIFIC_CHARACTER_SET) | |
64 { | |
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65 // Do not include the encoding, this is handled by class ParsedDicomFile |
1346 | 66 } |
67 else | |
608 | 68 { |
69 std::string tag = query.GetElement(i).GetTag().Format(); | |
70 std::string value; | |
71 if (resource.isMember(tag)) | |
72 { | |
73 value = resource.get(tag, Json::arrayValue).get("Value", "").asString(); | |
74 result.SetValue(query.GetElement(i).GetTag(), value); | |
75 } | |
722 | 76 else |
77 { | |
78 result.SetValue(query.GetElement(i).GetTag(), ""); | |
79 } | |
608 | 80 } |
81 } | |
82 | |
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83 if (result.GetSize() == 0 && |
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84 sequencesToReturn.empty()) |
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85 { |
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86 LOG(WARNING) << "The C-FIND request does not return any DICOM tag"; |
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87 } |
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88 else if (sequencesToReturn.empty()) |
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89 { |
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90 answers.Add(result); |
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91 } |
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92 else |
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93 { |
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94 ParsedDicomFile dicom(result); |
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95 |
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96 for (std::list<DicomTag>::const_iterator tag = sequencesToReturn.begin(); |
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97 tag != sequencesToReturn.end(); ++tag) |
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98 { |
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99 std::cout << tag->Format(); |
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100 |
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101 const Json::Value& source = resource[tag->Format()]; |
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102 |
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103 if (source.type() == Json::objectValue && |
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104 source.isMember("Type") && |
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105 source.isMember("Value") && |
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106 source["Type"].asString() == "Sequence" && |
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107 source["Value"].type() == Json::arrayValue) |
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108 { |
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109 Json::Value content = Json::arrayValue; |
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110 |
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111 for (Json::Value::ArrayIndex i = 0; i < source["Value"].size(); i++) |
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112 { |
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113 Json::Value item; |
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114 Toolbox::SimplifyTags(item, source["Value"][i], DicomToJsonFormat_Short); |
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115 content.append(item); |
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116 } |
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117 |
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118 dicom.Replace(*tag, content, false); |
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119 } |
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120 } |
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121 |
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122 answers.Add(dicom); |
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123 } |
608 | 124 } |
125 | |
126 | |
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127 |
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128 bool OrthancFindRequestHandler::FilterQueryTag(std::string& value /* can be modified */, |
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129 ResourceType level, |
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130 const DicomTag& tag, |
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131 ModalityManufacturer manufacturer) |
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132 { |
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133 switch (manufacturer) |
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134 { |
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135 case ModalityManufacturer_EFilm2: |
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136 // Following Denis Nesterov's mail on 2015-11-30 |
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137 if (tag == DicomTag(0x0008, 0x0000) || // "GenericGroupLength" |
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138 tag == DicomTag(0x0010, 0x0000) || // "GenericGroupLength" |
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139 tag == DicomTag(0x0020, 0x0000)) // "GenericGroupLength" |
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140 { |
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141 return false; |
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142 } |
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143 |
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144 break; |
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145 |
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146 case ModalityManufacturer_Vitrea: |
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147 // Following Denis Nesterov's mail on 2015-11-30 |
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148 if (tag == DicomTag(0x5653, 0x0010)) // "PrivateCreator = Vital Images SW 3.4" |
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149 { |
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150 return false; |
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151 } |
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152 |
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153 break; |
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154 |
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155 default: |
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156 break; |
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157 } |
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158 |
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159 return true; |
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160 } |
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161 |
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162 |
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163 bool OrthancFindRequestHandler::ApplyLuaFilter(DicomMap& target, |
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164 const DicomMap& source, |
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165 const std::string& remoteIp, |
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166 const std::string& remoteAet, |
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167 const std::string& calledAet) |
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168 { |
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169 static const char* NAME = "IncomingFindRequestFilter"; |
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170 |
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171 Json::Value output; |
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172 |
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173 { |
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174 LuaScripting::Locker locker(context_.GetLua()); |
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175 |
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176 if (!locker.GetLua().IsExistingFunction(NAME)) |
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177 { |
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178 return false; |
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179 } |
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180 |
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181 Json::Value tmp = Json::objectValue; |
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182 DicomArray a(source); |
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183 |
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184 for (size_t i = 0; i < a.GetSize(); i++) |
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185 { |
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186 const DicomValue& v = a.GetElement(i).GetValue(); |
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187 std::string s = (v.IsNull() || v.IsBinary()) ? "" : v.GetContent(); |
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188 tmp[a.GetElement(i).GetTag().Format()] = s; |
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189 } |
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190 |
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191 Json::Value origin = Json::objectValue; |
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192 origin["RemoteIp"] = remoteIp; |
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193 origin["RemoteAet"] = remoteAet; |
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194 origin["CalledAet"] = calledAet; |
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195 |
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196 LuaFunctionCall call(locker.GetLua(), NAME); |
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197 call.PushJson(tmp); |
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198 call.PushJson(origin); |
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199 |
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200 call.ExecuteToJson(output, true); |
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201 } |
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202 |
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203 // The Lua context is released at this point |
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204 |
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205 if (output.type() != Json::objectValue) |
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206 { |
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207 LOG(ERROR) << "Lua: IncomingFindRequestFilter must return a table"; |
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208 throw OrthancException(ErrorCode_LuaBadOutput); |
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209 } |
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210 |
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211 Json::Value::Members members = output.getMemberNames(); |
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212 |
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213 for (size_t i = 0; i < members.size(); i++) |
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214 { |
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215 if (output[members[i]].type() != Json::stringValue) |
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216 { |
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217 LOG(ERROR) << "Lua: IncomingFindRequestFilter must return a table mapping names of DICOM tags to strings"; |
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218 throw OrthancException(ErrorCode_LuaBadOutput); |
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219 } |
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220 |
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221 DicomTag tag(FromDcmtkBridge::ParseTag(members[i])); |
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222 target.SetValue(tag, output[members[i]].asString()); |
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223 } |
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224 |
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225 return true; |
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226 } |
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227 |
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228 |
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229 void OrthancFindRequestHandler::Handle(DicomFindAnswers& answers, |
665 | 230 const DicomMap& input, |
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231 const std::list<DicomTag>& sequencesToReturn, |
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232 const std::string& remoteIp, |
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233 const std::string& remoteAet, |
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234 const std::string& calledAet) |
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235 { |
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236 /** |
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237 * Ensure that the remote modality is known to Orthanc. |
665 | 238 **/ |
239 | |
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240 RemoteModalityParameters modality; |
665 | 241 |
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242 if (!Configuration::LookupDicomModalityUsingAETitle(modality, remoteAet)) |
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243 { |
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244 throw OrthancException(ErrorCode_UnknownModality); |
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245 } |
806 | 246 |
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247 bool caseSensitivePN = Configuration::GetGlobalBoolParameter("CaseSensitivePN", false); |
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248 |
665 | 249 |
250 /** | |
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251 * Possibly apply the user-supplied Lua filter. |
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252 **/ |
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253 |
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254 DicomMap lua; |
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255 const DicomMap* filteredInput = &input; |
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256 |
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257 if (ApplyLuaFilter(lua, input, remoteIp, remoteAet, calledAet)) |
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258 { |
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259 filteredInput = &lua; |
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260 } |
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261 |
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262 |
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263 /** |
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264 * Retrieve the query level. |
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265 **/ |
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266 |
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267 assert(filteredInput != NULL); |
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268 const DicomValue* levelTmp = filteredInput->TestAndGetValue(DICOM_TAG_QUERY_RETRIEVE_LEVEL); |
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269 if (levelTmp == NULL || |
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270 levelTmp->IsNull() || |
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271 levelTmp->IsBinary()) |
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272 { |
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273 LOG(ERROR) << "C-FIND request without the tag 0008,0052 (QueryRetrieveLevel)"; |
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274 throw OrthancException(ErrorCode_BadRequest); |
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275 } |
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276 |
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277 ResourceType level = StringToResourceType(levelTmp->GetContent().c_str()); |
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278 |
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279 if (level != ResourceType_Patient && |
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280 level != ResourceType_Study && |
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281 level != ResourceType_Series && |
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282 level != ResourceType_Instance) |
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283 { |
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284 throw OrthancException(ErrorCode_NotImplemented); |
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285 } |
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286 |
665 | 287 |
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288 DicomArray query(*filteredInput); |
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289 LOG(INFO) << "DICOM C-Find request at level: " << EnumerationToString(level); |
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290 |
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291 for (size_t i = 0; i < query.GetSize(); i++) |
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292 { |
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293 if (!query.GetElement(i).GetValue().IsNull()) |
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294 { |
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295 LOG(INFO) << " " << query.GetElement(i).GetTag() |
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296 << " " << FromDcmtkBridge::GetName(query.GetElement(i).GetTag()) |
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297 << " = " << query.GetElement(i).GetValue().GetContent(); |
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298 } |
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299 } |
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300 |
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301 for (std::list<DicomTag>::const_iterator it = sequencesToReturn.begin(); |
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302 it != sequencesToReturn.end(); ++it) |
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303 { |
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304 LOG(INFO) << " (" << it->Format() |
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305 << ") " << FromDcmtkBridge::GetName(*it) |
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306 << " : sequence tag whose content will be copied"; |
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307 } |
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308 |
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309 |
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310 /** |
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311 * Build up the query object. |
608 | 312 **/ |
313 | |
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314 LookupResource finder(level); |
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315 |
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316 for (size_t i = 0; i < query.GetSize(); i++) |
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317 { |
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318 const DicomTag tag = query.GetElement(i).GetTag(); |
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319 |
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320 if (query.GetElement(i).GetValue().IsNull() || |
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321 tag == DICOM_TAG_QUERY_RETRIEVE_LEVEL || |
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322 tag == DICOM_TAG_SPECIFIC_CHARACTER_SET) |
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323 { |
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324 continue; |
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325 } |
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326 |
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327 std::string value = query.GetElement(i).GetValue().GetContent(); |
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328 if (value.size() == 0) |
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329 { |
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330 // An empty string corresponds to a "*" wildcard constraint, so we ignore it |
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331 continue; |
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332 } |
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333 |
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334 if (FilterQueryTag(value, level, tag, modality.GetManufacturer())) |
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335 { |
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336 ValueRepresentation vr = FromDcmtkBridge::GetValueRepresentation(tag); |
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338 // DICOM specifies that searches must be case sensitive, except |
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339 // for tags with a PN value representation |
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340 bool sensitive = true; |
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341 if (vr == ValueRepresentation_PatientName) |
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342 { |
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343 sensitive = caseSensitivePN; |
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344 } |
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345 |
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346 finder.AddDicomConstraint(tag, value, sensitive); |
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347 } |
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348 else |
1758 | 349 { |
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350 LOG(INFO) << "Because of a patch for the manufacturer of the remote modality, " |
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351 << "ignoring constraint on tag (" << tag.Format() << ") " << FromDcmtkBridge::GetName(tag); |
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352 } |
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353 } |
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354 |
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355 |
608 | 356 /** |
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357 * Run the query. |
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358 **/ |
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359 |
1753 | 360 size_t maxResults = (level == ResourceType_Instance) ? maxInstances_ : maxResults_; |
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361 |
1753 | 362 std::vector<std::string> resources, instances; |
363 context_.GetIndex().FindCandidates(resources, instances, finder); | |
1752 | 364 |
1753 | 365 assert(resources.size() == instances.size()); |
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366 bool complete = true; |
1753 | 367 |
368 for (size_t i = 0; i < instances.size(); i++) | |
1752 | 369 { |
1753 | 370 Json::Value dicom; |
371 context_.ReadJson(dicom, instances[i]); | |
372 | |
373 if (finder.IsMatch(dicom)) | |
374 { | |
375 if (maxResults != 0 && | |
376 answers.GetSize() >= maxResults) | |
377 { | |
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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378 complete = false; |
1753 | 379 break; |
380 } | |
381 else | |
382 { | |
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C-FIND SCP will return tags with sequence value representation
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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383 AddAnswer(answers, dicom, query, sequencesToReturn); |
1753 | 384 } |
385 } | |
1752 | 386 } |
387 | |
1753 | 388 LOG(INFO) << "Number of matching resources: " << answers.GetSize(); |
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94ffb597d297
refactoring of C-Find SCP
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
1354
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changeset
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389 |
1800
30e97a1f4093
callback for handling worklists with plugins
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
1799
diff
changeset
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390 answers.SetComplete(complete); |
565
c931ac02db82
refactoring of find class
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff
changeset
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391 } |
c931ac02db82
refactoring of find class
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff
changeset
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392 } |