WSFederation–Implementing logout on ADFS

In one my ASP.NET Core applications we are (still) using WSFederation as the authentication protocol. While implementing the signout functionality I noticed that I correctly was signout at ADFS level but that ADFS didn’t return me back to my application afterwards.

This is handled by the wreply parameter and this parameter was correctly send to ADFS.

Here is my logout code:

After some trial and error I could pinpoint the issue to the following situation; when the reply URL was a subpath of the configured WSFederation endpoint it worked and I got correctly redirected.

For example:

The ADFS WSFederation endpoint for my Relying Party was configured to use https://localhost/example/federationresult/
If I used https://localhost/example/logoutsuccess/ as reply URL nothing happened and I stayed on the ADFS logout page
If I used https://localhost/example/federationresult/logoutsuccess/ as reply URL I am correctly redirected back to my application

I guess it makes sense as it is kind of a security measure.

Azure DevOps/ GitHub emoji

I’m really bad at remembering emoji’s. So here is cheat sheet with all emoji’s that can be used in tools that support the github emoji markdown markup: All credits go to rcaviers who created this list.

Kubernetes–Limit your environmental impact

Reducing the carbon footprint and CO2 emission of our (cloud) workloads, is a responsibility of all of us. If you are running a Kubernetes cluster, have a look at Kube-Green . kube-green is a simple Kubernetes operator that automatically shuts down (some of) your pods when you don't need them. A single pod produces about 11 Kg CO2eq per year( here the calculation). Reason enough to give it a try! Installing kube-green in your cluster The easiest way to install the operator in your cluster is through kubectl. We first need to install a cert-manager: kubectl apply -f https://github.com/cert-manager/cert-manager/releases/download/v1.14.5/cert-manager.yaml Remark: Wait a minute before you continue as it can take some time before the cert-manager is up & running inside your cluster. Now we can install the kube-green operator: kubectl apply -f https://github.com/kube-green/kube-green/releases/latest/download/kube-green.yaml Now in the namespace where we want t...

DevToys–A swiss army knife for developers

As a developer there are a lot of small tasks you need to do as part of your coding, debugging and testing activities. DevToys is an offline windows app that tries to help you with these tasks. Instead of using different websites you get a fully offline experience offering help for a large list of tasks. Many tools are available. Here is the current list: Converters JSON <> YAML Timestamp Number Base Cron Parser Encoders / Decoders HTML URL Base64 Text & Image GZip JWT Decoder Formatters JSON SQL XML Generators Hash (MD5, SHA1, SHA256, SHA512) UUID 1 and 4 Lorem Ipsum Checksum Text Escape / Unescape Inspector & Case Converter Regex Tester Text Comparer XML Validator Markdown Preview Graphic Col...

The art of simplicity

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