HTTP DELETE request with extra authentication

I was searching for a solution of the following problem, so far without success: I'm planning a RESTful web service, where certain actions (e.g. DELETE) 开发者_运维问答should require a special authentication.

The idea is, that users have a normal username/password login (session based or Basic Auth, doesn't really matter here) using which they can access the service. Some actions require an additional authentication in form of a PIN code or maybe even a one-time password. Including the extra piece of authentication into the login process is not possible (and would miss the point of the whole exercise).

I thought about special headers (something like X-OTP-Authetication) but that would make it impossible to access the service via a standard HTML page (no means to include a custom header into a link). Another option was HTTP query parameters, but that seems to be discouraged, especially for DELETE.

Any ideas how to tackle this problem?

From REST Web Service Security with jQuery Front-End

If you haven't already, I'd recommend some reading on OAuth 1.0 and 2.0. They are both used by some of the bigger API, such as Facebook, Netflix, Twitter, and more. 2.0 is still in draft, but that hasn't stopped anyone from implementing it and using it as it is more simple for a client to use. It sounds like you want something more complicated and more secure, so you might want to focus on 1.0.

I always found Netflix's Authentication Overview to be a good explanation for clients.