Introduce @CurrentSecurityContext for method arguments

[clevertension]

it can both support with spring web mvc and reactive web, user can retrieve SecurityContext in controller easily, such as

import org.springframework.security.core.Authentication;
import org.springframework.security.core.annotation.CurrentSecurityContext;
import org.springframework.security.core.context.SecurityContext;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller
public class MySecurityController {
	@RequestMapping("/security-context")
	public String securityContext(@CurrentSecurityContext SecurityContext context) {
		Authentication auth = context.getAuthentication();
		//do with security context and related authentication
		return "security-context";
	}
}

#6546

[jzheaux]

Thanks, @clevertension! I've left some inline feedback.

Also, I'd like to see if @rwinch has some feedback, too, especially around whether the patterns that are copied from the existing argument resolvers are ones we want to propagate.

[clevertension]

@jzheaux thanks very much for your review feedback, i have already fix all the issues that you mentioned, so should i add extra 1 commit, or still keep only one commit by force push here?

[jzheaux]

@clevertension Either way. Before we merge, you'll need to force push down to one commit. Some folks like to keep commits separate while the review is going on. For small PRs like this, it doesn't make a big difference.

[clevertension]

👍,👍,👍

[clevertension]

@rwinch , can you spare time to review this PR? thank you very much

[jzheaux]

@clevertension I took a fresh look at this, and I left a couple more comments inline.

[rwinch]

Thanks for the PR @clevertension! The changes look good

[jzheaux]

Thanks, @clevertension! This is now merged into master.