4. May 2015
ASP.NET , Web
For some reason I got the urge to have a look at webhooks when using GitHub. Since it is a feature that is used extensively by build servers and other applications to do things when code is pushed to GitHub etc, I thought it might be cool to have a look at how it works under the hood. And maybe build some interesting integration in the future…
The basic idea behind it is that you tell GitHub that you want to get notified when things happen in your GitHub repo, and GitHub makes sure to do so. It does so using a regular HTTP call to an endpoint of your choice.
Right now there is a lot of talk about the next iteration of the .NET platform, and the different versions and runtimes that is about to be released. Unfortunately, it has turned into a quite complicated situation when it comes to the versions of things being released.
I get quite a few question about how it all fits together, and I try answering them as best as I can. However, as the question keeps popping up over and over again, I thought I would sum up the situation as I have understood it.
Disclaimer: Everything in this post is “as I have understood it”. I am not working for Microsoft, and I am in no way or form guaranteeing that this is the right description. This is just how I understand the situation. Hopefully it is fairly close to the real world.
As promised during my talk at SweNug Stockholm last week, I have now uploaded my code for anyone to play around with. I just want to highlight that it is based around VERY early bits, and new versions might cause problems. It is built using runtime 1.0.0-beta5-11533. But even if it changes, the code should give you a clue about how it works.
Code is available here: ASP.NET 5 Demo.zip (714.47 kb)
20. March 2015
ASP.NET , Web
[UPDATE] If you clone the dev branch’s samples instead of the master branch, it should be easier. You will still need to update the Startup.cs file for now though. Pull-request made… (That was a long blog post to no use…still gives some insight into how it works though…) [END UPDATE]
[UPDATE 2] Now updated to beta-5 if anyone still wants it considering the update above… [END UPDATE 2]
Yesterday I finally had time to sit down and play with the new ASP.NET 5 runtime, which is something I have wanted to do for quite some time. However, it kind of annoyed me that I couldn’t just install the ASP.NET 5 runtime, clone the samples from GitHub and get started, as it generated a whole heap of errors. After an hour or so of Googling and trying things out, I finally got it working, so I thought I would write down what I did to get it to work.
Note: This codebase is moving ridiculously fast, so this post is going to be old within a very short while. Everything is based on the code as of today, March 20th 2015.
As some of you might have noticed, I really like OWIN. I like the simplicity, and the extremely powerful things that you can do with it in a simple way. And the fact that I don’t have to create an IHttpModule implementation, and figure out the ASP.NET event to hook into, like I had to to do the same thing before OWIN.
Katana, Microsoft’s implementation of OWIN, also offers a standardized way to handle authentication. And it is really easy to use, and not too hard to extend to work with your own identity providers. However, being me, I want to know how it works “under the hood”, and not just read a “how to build an authentication middlware” blog post…
Remember, knowing how things work “under the hood”, or “under the bonnet” if you speak the Queens English, makes it possible to do more things than just use it. By knowing how a combustion engine works (under the hood/bonnet of your car), makes it possible to add a turbo or two to it, or a compressor, or at maybe tweak the fuel consumption and horse power you get from it. But let’s leave the car analogies and look at Katana authentication middleware.
12. February 2015
I have once again been tasked with writing a ASP.NET Wep Api action to handle the upload of a file. Or rather a form including a file. And once again, I Googled it looking for good solutions. And once again I got the same code thrown in my face over and over again. It seems to be the only one out there. And it isn’t what I want…
The code I am talking about is the one available at http://www.asp.net/web-api/overview/advanced/sending-html-form-data,-part-2. And if you don’t want to go and read that, the general gist is this
throw new HttpResponseException(HttpStatusCode.UnsupportedMediaType);
string root = HttpContext.Current.Server.MapPath("~/App_Data");
var provider = new MultipartFormDataStreamProvider(root);
/* Get files using provider.FileData */
10. November 2014
ASP.NET , Web
Dislaimer: The solution will still be VERY small and simple. But at least it will be made big enough to be able to use bundling and minification. Which to be honest just means that we need more than one file of each type…
I assume that you have read the last post, and that if you are following along on your machine, you will need to be done with everything that was done in that post…
4. November 2014
ASP.NET , Web
Most of you can ignore this post completely! But if you attended SweNug today (September 10th), you know that I promised to publish my code. So here it is!
Code: SweNug.Owin.zip (2.30 mb)
I’m sorry for the ridiculous size of the download, but all the solutions have NuGet package restore enabled, which places an exe to restore NuGet packages in the project. This exe is quite sizable, so the download gets a bit large. On the other hand, including all the NuGet packages would make it even larger…
If you have any questions, don’t hesitate to drop me a line!
21. August 2014
ASP.NET , Security
In my previous post, I showed how to do a simple configuration of WS-Federation using WIF, or whatever it is called now that it is part of the framework, to enable federated authentication in ASP.NET. Something that was previously done using a tool, but now either has to be done at the start of the application, or manually.
But what about OWIN? As all new security stuff is moving to OWIN, how do we get it to work there? Well, by default, it is ridiculously simple. And that has been the whole goal with this new model.