C#•3y ago

❔ GetOwinContext().Authentication.GetAuthenticationTypes() equivalent in asp.net core

Trying to migrate a asp.net MVC project to asp.net core and having trouble figuring out what authentication middlewares have been registred for usege on the client side.

TeBeCo•8/9/23, 12:54 PM

I would completly re-read all the docs from AspNetCore Authentication

TeBeCo•8/9/23, 12:54 PM

there's no direct equiavelent for AuthN and AuthZ

TeBeCo•8/9/23, 12:54 PM

it's been fully re-written

TeBeCo•8/9/23, 12:54 PM

there's no Middleware you're supposed to write yourself

TeBeCo•8/9/23, 12:54 PM

there's no

TeBeCo•8/9/23, 12:54 PM

there's

TeBeCo•8/9/23, 12:55 PM

which is a Principal with info associated on how the user signed in

TeBeCo•8/9/23, 12:55 PM

there's a list of Scheme

TeBeCo•8/9/23, 12:55 PM

there's which you associate to their "default" scheme

TeBeCo•8/9/23, 12:55 PM

and you can eve setup different handler on the same scheme on different "verb/action"

TeBeCo•8/9/23, 12:55 PM

like Challenge / SignIn

TeBeCo•8/9/23, 12:56 PM

and these Handler and resolved and ran by the native AuthN handler

TeBeCo•8/9/23, 12:56 PM

which for that ...

nickeOP•8/9/23, 12:56 PM

I need to figure out if there are any authentication methods configured or not. To display different information for the user (show sign in button or not)

TeBeCo•8/9/23, 12:56 PM

will take your endpoint

TeBeCo•8/9/23, 12:56 PM

extract the matadata

TeBeCo•8/9/23, 12:56 PM

read the AuthorizeData

TeBeCo•8/9/23, 12:56 PM

extract possible Policy and Scheme

TeBeCo•8/9/23, 12:56 PM

lookup the Handler with that Scheme

TeBeCo•8/9/23, 12:56 PM

and run the handler

TeBeCo•8/9/23, 12:56 PM

which might trigger a SignIn

TeBeCo•8/9/23, 12:57 PM

and a Challenge

TeBeCo•8/9/23, 12:57 PM

etc ...

TeBeCo•8/9/23, 12:57 PM

you need to figure out what's the goal of your legacy code

TeBeCo•8/9/23, 12:57 PM

and don't try to translate it

TeBeCo•8/9/23, 12:57 PM

that's the issue here

TeBeCo•8/9/23, 12:57 PM

I need to figure out if there are any authentication methods configured or not.

TeBeCo•8/9/23, 12:58 PM

To display different information for the use

TeBeCo•8/9/23, 12:58 PM

what ?

TeBeCo•8/9/23, 12:58 PM

you need to explain more

TeBeCo•8/9/23, 12:58 PM

because Auth is something you setup from the code

nickeOP•8/9/23, 12:58 PM

If it's jsut using windows authentication i don't want to display a sign out button to the user

TeBeCo•8/9/23, 12:59 PM

that's not how it works thougn

TeBeCo•8/9/23, 12:59 PM

because of handler / scheme / action

TeBeCo•8/9/23, 12:59 PM

you could try to lookup in DI what's added

TeBeCo•8/9/23, 12:59 PM

or how Scheme are added / registered

TeBeCo•8/9/23, 1:00 PM

check in how the works for handler

nickeOP•8/9/23, 1:06 PM

I guess i could just check the same flag that decides if Negotiate handler has been added. insdead of openidconnect handler.
Thanks for the help

Nnicke I guess i could just check the same flag that decides if Negotiate handler has b...

TeBeCo•8/9/23, 1:09 PM

i mean

TeBeCo•8/9/23, 1:09 PM

there's even simplier

TeBeCo•8/9/23, 1:09 PM

if it's windows Auth the user will be signed in

TeBeCo•8/9/23, 1:09 PM

so just check if he's authenticated

TeBeCo•8/9/23, 1:10 PM

the authentication method is even forwarded by and

nickeOP•8/9/23, 1:10 PM

yeah, just don't want to needlessly display the sign out button in that case

TeBeCo•8/9/23, 1:10 PM

yeah so probably don't touch the Auth stack

TeBeCo•8/9/23, 1:10 PM

only rely on

nickeOP•8/9/23, 1:10 PM

right i can get the current authentication method that way

TeBeCo•8/9/23, 1:10 PM

because if you decide to have your app support many scheme your code is now full of bug

TeBeCo•8/9/23, 1:11 PM

your real check is to check how the user signed in

TeBeCo•8/9/23, 1:11 PM

which is