--- a/Core/DicomParsing/DicomModification.cpp	Fri Feb 28 11:53:23 2020 +0100
+++ b/Core/DicomParsing/DicomModification.cpp	Fri Feb 28 13:23:11 2020 +0100
@@ -1324,6 +1324,12 @@
 
     patientNameReplaced = (IsReplaced(DICOM_TAG_PATIENT_NAME) &&
                            GetReplacement(DICOM_TAG_PATIENT_NAME) == patientName);
+
+    // New in Orthanc 1.6.0
+    if (request.isMember("PrivateCreator"))
+    {
+      privateCreator_ = SerializationToolbox::ReadString(request, "PrivateCreator");
+    }
   }
 
 

--- a/Core/DicomParsing/DicomModification.h	Fri Feb 28 11:53:23 2020 +0100
+++ b/Core/DicomParsing/DicomModification.h	Fri Feb 28 13:23:11 2020 +0100
@@ -187,7 +187,7 @@
 
     void Serialize(Json::Value& value) const;
 
-    void SetPrivateCreator(std::string& privateCreator)
+    void SetPrivateCreator(const std::string& privateCreator)
     {
       privateCreator_ = privateCreator;
     }

--- a/NEWS	Fri Feb 28 11:53:23 2020 +0100
+++ b/NEWS	Fri Feb 28 13:23:11 2020 +0100
@@ -45,6 +45,7 @@
 * Fix issue #165 (Boundary parameter in multipart Content-Type is too long)
 * Fix issue #166 (CMake find_boost version is now broken with newer boost/cmake)
 * Fix issue #167 (Job can't be cancelled - Handling of timeouts after established association)
+* Fix issue #168 (Plugins can't read private tags from the configuration file)
 
 
 Version 1.5.8 (2019-10-16)

--- a/OrthancServer/OrthancConfiguration.cpp	Fri Feb 28 11:53:23 2020 +0100
+++ b/OrthancServer/OrthancConfiguration.cpp	Fri Feb 28 13:23:11 2020 +0100
@@ -865,4 +865,11 @@
       return new TemporaryFile;
     }
   }
+
+
+  std::string OrthancConfiguration::GetDefaultPrivateCreator() const
+  {
+    // New configuration option in Orthanc 1.6.0
+    return GetStringParameter("DefaultPrivateCreator", "");
+  }
 }

--- a/OrthancServer/OrthancConfiguration.h	Fri Feb 28 11:53:23 2020 +0100
+++ b/OrthancServer/OrthancConfiguration.h	Fri Feb 28 13:23:11 2020 +0100
@@ -231,5 +231,7 @@
     void ResetServerIndex();
 
     TemporaryFile* CreateTemporaryFile() const;
+
+    std::string GetDefaultPrivateCreator() const;
   };
 }

--- a/OrthancServer/OrthancRestApi/OrthancRestAnonymizeModify.cpp	Fri Feb 28 11:53:23 2020 +0100
+++ b/OrthancServer/OrthancRestApi/OrthancRestAnonymizeModify.cpp	Fri Feb 28 13:23:11 2020 +0100
@@ -37,6 +37,7 @@
 #include "../../Core/DicomParsing/FromDcmtkBridge.h"
 #include "../../Core/Logging.h"
 #include "../../Core/SerializationToolbox.h"
+#include "../OrthancConfiguration.h"
 #include "../ServerContext.h"
 #include "../ServerJobs/MergeStudyJob.h"
 #include "../ServerJobs/ResourceModificationJob.h"
@@ -63,6 +64,11 @@
   {
     // curl http://localhost:8042/series/95a6e2bf-9296e2cc-bf614e2f-22b391ee-16e010e0/modify -X POST -d '{"Replace":{"InstitutionName":"My own clinic"},"Priority":9}'
 
+    {
+      OrthancConfiguration::ReaderLock lock;
+      target.SetPrivateCreator(lock.GetConfiguration().GetDefaultPrivateCreator());
+    }
+    
     if (call.ParseJsonRequest(request))
     {
       target.ParseModifyRequest(request);
@@ -80,6 +86,11 @@
   {
     // curl http://localhost:8042/instances/6e67da51-d119d6ae-c5667437-87b9a8a5-0f07c49f/anonymize -X POST -d '{"Replace":{"PatientName":"hello","0010-0020":"world"},"Keep":["StudyDescription", "SeriesDescription"],"KeepPrivateTags": true,"Remove":["Modality"]}' > Anonymized.dcm
 
+    {
+      OrthancConfiguration::ReaderLock lock;
+      target.SetPrivateCreator(lock.GetConfiguration().GetDefaultPrivateCreator());
+    }
+    
     if (call.ParseJsonRequest(request) &&
         request.isObject())
     {
@@ -553,6 +564,11 @@
 
       privateCreator = v.asString();
     }
+    else
+    {
+      OrthancConfiguration::ReaderLock lock;
+      privateCreator = lock.GetConfiguration().GetDefaultPrivateCreator();
+    }
 
     
     // Inject time-related information

--- a/Plugins/Engine/OrthancPlugins.cpp	Fri Feb 28 11:53:23 2020 +0100
+++ b/Plugins/Engine/OrthancPlugins.cpp	Fri Feb 28 13:23:11 2020 +0100
@@ -2922,9 +2922,18 @@
     std::string dicom;
 
     {
+      // Fix issue 168 (Plugins can't read private tags from the
+      // configuration file)
+      // https://bitbucket.org/sjodogne/orthanc/issues/168/
+      std::string privateCreator;
+      {
+        OrthancConfiguration::ReaderLock lock;
+        privateCreator = lock.GetConfiguration().GetDefaultPrivateCreator();
+      }
+      
       std::auto_ptr<ParsedDicomFile> file
         (ParsedDicomFile::CreateFromJson(json, static_cast<DicomFromJsonFlags>(p.flags),
-                                         "" /* TODO - private creator */));
+                                         privateCreator));
 
       if (p.pixelData)
       {
@@ -3097,7 +3106,25 @@
     DcmTagKey tag2(tag.GetGroup(), tag.GetElement());
 
     DictionaryReadLocker locker;
-    const DcmDictEntry* entry = locker->findEntry(tag2, NULL);
+    const DcmDictEntry* entry = NULL;
+
+    if (tag.IsPrivate())
+    {
+      // Fix issue 168 (Plugins can't read private tags from the
+      // configuration file)
+      // https://bitbucket.org/sjodogne/orthanc/issues/168/
+      std::string privateCreator;
+      {
+        OrthancConfiguration::ReaderLock lock;
+        privateCreator = lock.GetConfiguration().GetDefaultPrivateCreator();
+      }
+
+      entry = locker->findEntry(tag2, privateCreator.c_str());
+    }
+    else
+    {
+      entry = locker->findEntry(tag2, NULL);
+    }
 
     if (entry == NULL)
     {

--- a/Resources/Configuration.json	Fri Feb 28 11:53:23 2020 +0100
+++ b/Resources/Configuration.json	Fri Feb 28 13:23:11 2020 +0100
@@ -521,5 +521,10 @@
   // to option "request_timeout_ms" of Mongoose/Civetweb. It will set
   // the socket options "SO_RCVTIMEO" and "SO_SNDTIMEO" to the
   // specified value.
-  "HttpRequestTimeout" : 30
+  "HttpRequestTimeout" : 30,
+
+  // Set the default private creator that is used by Orthanc when it
+  // looks for a private tag in its dictionary (cf. "Dictionary"
+  // option), or when it creates/modifies a DICOM file (new in Orthanc 1.6.0).
+  "DefaultPrivateCreator" : ""
 }