We've used a .NET client (WebClient) in a C# software (developed by us) to access data (historic and current) from an openPDC with access control enabled, with Windows users. We mount URLs with user and password (http://user:email@example.com:6152/historian/timeseriesdata/.........../json) into the C# software, and parse the json that comes from the openPDC. It has worked well.
Now, we are trying to do something similar, but using php and "curl" (Linux). In this cenario, the requests don't work. It seems there are some authentication issue; it seems the openPDC webservice can't authenticate the connection comming from the curl.
We are using the configurations posted in the old openPDC forum (link above).
Any ideia if we can change something in the openPDC configuration, or any hint to use with curl, or other client?