Hello,
For each DICOM instance stored into Orthanc through the REST API, Orthanc automatically records the username associated with the HTTP basic access authentication as the HttpUsername metadata.
For instance:
$ curl -u user:password http://localhost:8042/instances --data-binary @sample.dcm
$ curl http://localhost:8042/instances/19816330-cb02e1cf-df3a8fe8-bf510623-ccefe9f5/metadata/HttpUsername
user
If the DICOM files are received by a more complex mechanism than the plain REST API, you’ll have to implement a plugin (e.g. in Python) that records the username as a custom metadata, depending on the origin of the request. Metadata allows you not to modify the actual DICOM file, which is desirable in most scenarios.
Regards,
Sébastien-