Mercurial > hg > orthanc

annotate OrthancServer/Sources/OrthancRestApi/OrthancRestChanges.cpp @ 4819:70d2a97ca8cb openssl-3.x

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integration mainline->openssl-3.x
author Sebastien Jodogne <s.jodogne@gmail.com>
date Thu, 25 Nov 2021 13:12:32 +0100
parents f0038043fb97
children 2e71a08eea15
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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 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 * 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 * 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 General Public License
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18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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19 **/
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20
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21
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22 #include "../PrecompiledHeadersServer.h"
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23 #include "OrthancRestApi.h"
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24
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25 #include "../ServerContext.h"
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26
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27 namespace Orthanc
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28 {
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29 // Changes API --------------------------------------------------------------
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30
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31 static void GetSinceAndLimit(int64_t& since,
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32 unsigned int& limit,
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33 bool& last,
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34 const RestApiGetCall& call)
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35 {
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36 static const unsigned int DEFAULT_LIMIT = 100;
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37
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38 if (call.HasArgument("last"))
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39 {
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40 last = true;
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41 return;
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42 }
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43
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44 last = false;
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45
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46 try
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47 {
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48 since = boost::lexical_cast<int64_t>(call.GetArgument("since", "0"));
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49 limit = boost::lexical_cast<unsigned int>(call.GetArgument("limit", boost::lexical_cast<std::string>(DEFAULT_LIMIT)));
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50 }
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51 catch (boost::bad_lexical_cast&)
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52 {
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53 since = 0;
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54 limit = DEFAULT_LIMIT;
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55 return;
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56 }
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57 }
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58
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59 static void GetChanges(RestApiGetCall& call)
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60 {
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61 if (call.IsDocumentation())
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62 {
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63 call.GetDocumentation()
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64 .SetTag("Tracking changes")
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65 .SetSummary("List changes")
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66 .SetDescription("Whenever Orthanc receives a new DICOM instance, this event is recorded in the so-called _Changes Log_. This enables remote scripts to react to the arrival of new DICOM resources. A typical application is auto-routing, where an external script waits for a new DICOM instance to arrive into Orthanc, then forward this instance to another modality.")
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67 .SetHttpGetArgument("limit", RestApiCallDocumentation::Type_Number, "Limit the number of results", false)
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68 .SetHttpGetArgument("since", RestApiCallDocumentation::Type_Number, "Show only the resources since the provided index", false)
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69 .AddAnswerType(MimeType_Json, "The list of changes")
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70 .SetAnswerField("Changes", RestApiCallDocumentation::Type_JsonListOfObjects, "The individual changes")
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71 .SetAnswerField("Done", RestApiCallDocumentation::Type_Boolean,
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72 "Whether the last reported change is the last of the full history")
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73 .SetAnswerField("Last", RestApiCallDocumentation::Type_Number,
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74 "The index of the last reported change, can be used for the `since` argument in subsequent calls to this route")
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75 .SetHttpGetSample("https://demo.orthanc-server.com/changes?since=0&limit=2", true);
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76 return;
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77 }
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78
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79 ServerContext& context = OrthancRestApi::GetContext(call);
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80
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81 //std::string filter = GetArgument(getArguments, "filter", "");
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82 int64_t since;
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83 unsigned int limit;
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84 bool last;
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85 GetSinceAndLimit(since, limit, last, call);
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86
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87 Json::Value result;
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88 if (last)
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89 {
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90 context.GetIndex().GetLastChange(result);
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91 }
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92 else
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93 {
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94 context.GetIndex().GetChanges(result, since, limit);
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95 }
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96
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97 call.GetOutput().AnswerJson(result);
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98 }
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99
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100
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101 static void DeleteChanges(RestApiDeleteCall& call)
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102 {
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103 if (call.IsDocumentation())
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104 {
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105 call.GetDocumentation()
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106 .SetTag("Tracking changes")
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107 .SetSummary("Clear changes")
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108 .SetDescription("Clear the full history stored in the changes log");
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109 return;
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110 }
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111
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112 OrthancRestApi::GetIndex(call).DeleteChanges();
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113 call.GetOutput().AnswerBuffer("", MimeType_PlainText);
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114 }
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115
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116
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117 // Exports API --------------------------------------------------------------
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118
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119 static void GetExports(RestApiGetCall& call)
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120 {
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121 if (call.IsDocumentation())
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122 {
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123 call.GetDocumentation()
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124 .SetTag("Tracking changes")
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125 .SetSummary("List exports")
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126 .SetDescription("For medical traceability, Orthanc can be configured to store a log of all the resources "
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127 "that have been exported to remote modalities. In auto-routing scenarios, it is important "
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128 "to prevent this log to grow indefinitely as incoming instances are routed. You can either "
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129 "disable this logging by setting the option `LogExportedResources` to `false` in the "
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130 "configuration file, or periodically clear this log by `DELETE`-ing this URI. This route "
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131 "might be removed in future versions of Orthanc.")
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132 .SetHttpGetArgument("limit", RestApiCallDocumentation::Type_Number, "Limit the number of results", false)
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133 .SetHttpGetArgument("since", RestApiCallDocumentation::Type_Number, "Show only the resources since the provided index", false)
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134 .AddAnswerType(MimeType_Json, "The list of exports");
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135 return;
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136 }
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137
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138 ServerContext& context = OrthancRestApi::GetContext(call);
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139
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140 int64_t since;
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141 unsigned int limit;
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142 bool last;
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143 GetSinceAndLimit(since, limit, last, call);
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144
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145 Json::Value result;
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146 if (last)
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147 {
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148 context.GetIndex().GetLastExportedResource(result);
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149 }
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150 else
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151 {
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152 context.GetIndex().GetExportedResources(result, since, limit);
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153 }
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154
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155 call.GetOutput().AnswerJson(result);
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156 }
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157
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158
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159 static void DeleteExports(RestApiDeleteCall& call)
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160 {
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161 if (call.IsDocumentation())
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162 {
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163 call.GetDocumentation()
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164 .SetTag("Tracking changes")
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165 .SetSummary("Clear exports")
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166 .SetDescription("Clear the full history stored in the exports log");
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167 return;
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168 }
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169
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170 OrthancRestApi::GetIndex(call).DeleteExportedResources();
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171 call.GetOutput().AnswerBuffer("", MimeType_PlainText);
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172 }
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173
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174
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175 void OrthancRestApi::RegisterChanges()
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176 {
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177 Register("/changes", GetChanges);
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178 Register("/changes", DeleteChanges);
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179 Register("/exports", GetExports);
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180 Register("/exports", DeleteExports);
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181 }
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182 }