Writing an owin authentication middleware

NET Identity Owin makes it easy to inject new middleware into the processing pipeline. This can be leveraged to inject breakpoints in the pipeline, to inspect the state of the Owin context during authentication.

Writing an owin authentication middleware

Implicit Flow Configuration Implicit Flow has a number of key defining features: The format would be something like: The relevant entry for our implicit flow Client is: Something needs to start the login process, so I just created a dummy controller action with an [Authorize] attribute.

Trying to call the corresponding URL while not logged in means the OWIN middleware will redirect you to the start of the login process. IdentityServer3 provides us with a login box, followed by a consent screen: Before finally returning the requested tokens in the hash-fragment of the redirect URI: The user goes through the same steps of a login screen and consent screen, as for the implicit flow described above.

About the code

But instead of sending the token s back at the end of this process, the OCP returns an "Authorization Code" instead. The server-side Client receives this code then logs into the OCP directly and exchanges this code for the ID token and access token.

The Client then uses the token s on behalf of the user without the user-agent eg a browser ever handling the token s directly. The Client can also request a refresh offline access token, which it can use to get new access tokens from the OCP when tokens expire.

The flow won't get far enough to worry about the cookie configuration, but my intent is that the middleware retrieves the tokens then stores them in session for the user. That way, the tokens never leave the server and are just related to the user via the session, with the session cookie round-tripping to the user-agent as normal.

Introduction

IdentityServer3 The hard-coded Client configuration is this time: The first part of the login process works fine. We get a login box and consent screen, as before. And in line with the OpenID Connect specification, we get an authorization code sent back to the Client, in the query string, in the format: But this doesn't happen.

Why doesn't it work? As described in "What works out of the box? The only flow supported by this version of the middleware is Hybrid Flow, with the access-code and ID token returned to the Client in a form post.Detailed post on enabling vetconnexx.com Web API 2 external logins such as Facebook & Google using Owin and Identity, then consume it in AngularJS app.

Recently we looked at the fundamentals of the OWIN/Katana Middleware pipeline, and we then applied what we learned, and built out a minimal, OWIN-Based, self-hosted Web vetconnexx.com doing so, we managed to avoid the heavy weight of the vetconnexx.com library or IIS, and we ended up with a pretty lightweight application.

However, all of the concepts we have discussed remain valid no matter the hosting. An Overview of Project Katana. 08/30/; 21 minutes to read Contributors. all; In this article. by Howard Dierking. The vetconnexx.com Framework has been around for over ten years, and the platform has enabled the development of countless Web sites and services.

writing an owin authentication middleware

10 OData FAQs. 12 September vetconnexx.com, C#, OData I have been speaking about OData at conferences for many years now.

As a database guy, the standard fascinated me from the first day on. After having promised (to you and to myself) to write more in depth about the new OWIN components for OpenId Connect and WS-Federation, I am finally carving out some time to sit down and jolt down my thoughts about it.

Aug 29,  · Microsoft Azure Stack is an extension of Azure—bringing the agility and innovation of cloud computing to your on-premises environment and enabling the only hybrid cloud that allows you to build and deploy hybrid applications anywhere.

An Overview of Project Katana | Microsoft Docs