access PKI cert request header in SOI?

[Anonymous User]

I've set up ArcGIS for Server (AGS) 10.3.1 with SSL and PKI-based client authentication. 

I'd like to access the HTTP headers from the client request (e.g. distinguished name (DN)) in a Server Object Interceptor.

Are the request headers accessible in AGS, and if so, how?

I looked at the IRESTRequestHandler interface but didn't see anything related to HTTP headers.

[BillMajor]

Martin, SOIs do not have access to httpRequest headers.  BUT, you can alter the queryString from the httpRequest and that will make it all the way into the SOI.  However, this may not solve all the problems you are envisioning.