OAuth 1.0 offers a fairly complex HTTP-centric solution to a classical problem of "how a resource owner (end user) can allow a third-party consumer to access some of the resources this user owns on the resource server".
I recall being quite confused about OAuth and what exactly it was supposed to help with, when starting to look into it about 2 years ago. I guess it was a typical reaction of someone trying to grasp a given technology without having any prior experience in the area. What was the story with that redirection, and then with yet another one, and how all the pieces were supposed to be wired together ? Was it about the authentication or authorization, and where would something like OpenId come in ? I was asking myself those kind of questions.
It takes a bit of time to realize how elegant OAuth actually is. OAuth 1.0 has been supported by major players such as Google, Facebook and many others. Jersey and RestEasy are offering their support. And OAuth 2.0 is going to make a massive impact real soon.
CXF 2.5.0 is joining the OAuth game. And we have tried our best to make it possible for users to write complete, functional, secure OAuth applications the way they write their HelloWorld demos.
Before providing more information, I'd like to thank Lukash Moren for providing a high-quality OAuth 1.0 implementation as part of his GSOC 2009 project, and Bill for asking me to work on OAuth during my brief spell at JBoss - it all kind of happened at the same time...
Now, please review this documentation providing a comprehensive overview of what it takes to create and deploy an OAuth server, with a lot of examples and hints on various approaches one may need to choose from when building a complete OAuth solution.
Much depends on how the resource server manages the user resources and provides an access the the end users and third-party consumers. Many options are available but the message we'd like to send is that you don't need to create a WEB application similar to those provided by Google or Facebook or Twitter in order to get working with OAuth. CXF JAX-RS provides the ingredients one may need to apply OAuth to all sort of problems requiring the end user authorizing a 3rd party access. Obviously we will be improving what is already there as time goes by.
So lets make OAuth go mainstream with CXF JAX-RS, start building OAuth applications and enjoy it all the way.