I'm implementing a RESTful web service using ASP.Net Web Api. I have concluded to use Basic authentication + SSL to do the authentication part. What is the best/correct way to implement that?
My first attempt was to do it manually, parsing the Authorization header, decoding and verifying the user against my database. It works, but I wonder if I am missing something.
I've seen some solutions using user roles and principals. While I'm not sure what these actually do, I'm almost sure I will not be needing these, since in my database I define my own users and their roles.
Also what I haven't yet completely understand, is if the consumers of the service must sent the credentials with each request or they are somehow cached. Should my service do something in order for this to happen, or it's completely up to the consumer to handle this?
And a last question about clients making requests with javascript. Would there be any "cross domain request" problems if they try to use the service?
In IIS Manager, go to Features View, select Authentication, and enable Basic authentication. In your Web API project, add the [Authorize] attribute for any controller actions that need authentication. A client authenticates itself by setting the Authorization header in the request.
Use of basic authentication is specified as follows: The string "Basic " is added to the Authorization header of the request. The username and password are combined into a string with the format "username:password", which is then base64 encoded and added to the Authorization header of the request.
Basic authentication is an HTTP-based authentication approach and is the simplest way to secure REST APIs. It uses a Base64 format to encode usernames and passwords, both of which are stored in the HTTP header.
Jamie Kurtze provides a good explanation of using Basic Authentication here ASP.NET Web API REST Security Basics
From my understanding, if you want your requests to be stateless then each request will require the Authentication field to be set
Jamie Kurtze wraps the necessary code in a class derived from DelegateHandler, while Rick Strahl checks if the call is valid using a Filter. You can read more at his blog post on this topic at A WebAPI Basic Authentication Authorization Filter
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