Selective IPrincipal Injection via StructureMap with SignalR

Question

StructureMap is configured to inject HttpContext.Current.User when an IPrincipal is requested for any ASP.NET MVC web request, like so:

For<IPrincipal>().Use(x => HttpContext.Current.User);

But when my SignalR hub asks for a service that depends on an IPrincipal, injection fails because HttpContext.Current is null. Instead, SignalR already has a HubCallerContext property that exposes the current IPrincipal via Context.User.

How do I configure StructureMap to always inject a valid IPrincipal into the services my SignalR hub relies on?

Steven · Accepted Answer · 2013-01-16T09:32:05.437

1

Just do this:

For<IPrincipal>().Use(x => Thread.CurrentPrincipal);

edited Jan 16 '13 at 09:32

answered Oct 26 '12 at 10:01

Steven

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How do I retrieve the current `HubCallerContext` from outside of the hub? AFAIK, there is no static, global `HubCallerContext.Current` like there is for HttpContext. – Petrus Theron Oct 26 '12 at 10:09
Ahh okay.. And you can't use the `Thread.CurrentThread.CurrentPrincipal`? – Steven Oct 26 '12 at 10:16
Going to try `Thread.CurrentPrincipal` (for non-static context). – Petrus Theron Oct 26 '12 at 10:20

Selective IPrincipal Injection via StructureMap with SignalR

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