/*
* Copyright 2014 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.xd.dirt.rest.security;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.core.env.Environment;
import org.springframework.hateoas.ExposesResourceFor;
import org.springframework.hateoas.mvc.ControllerLinkBuilder;
import org.springframework.http.HttpStatus;
import org.springframework.security.authentication.AnonymousAuthenticationToken;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.ResponseStatus;
import org.springframework.xd.rest.domain.security.SecurityInfoResource;
/**
* Provides security-related meta information. Provides one REST endpoint at present
* time {@code /security/info} that provides information such as whether security
* is enabled and if so what is the username of the currently logged in user etc.
*
* @author Gunnar Hillert
* @since 1.1
*/
@Controller
@RequestMapping("/security/info")
@ExposesResourceFor(SecurityInfoResource.class)
public class SecurityController {
@Autowired
private Environment environment;
/**
* Return security information. E.g. is security enabled? Which user do you represent?
*/
@ResponseBody
@RequestMapping(method = RequestMethod.GET)
@ResponseStatus(HttpStatus.OK)
public SecurityInfoResource getSecurityInfo() {
final boolean authenticationEnabled = environment.getRequiredProperty("security.basic.enabled", boolean.class);
final SecurityInfoResource securityInfo = new SecurityInfoResource();
securityInfo.setAuthenticationEnabled(authenticationEnabled);
securityInfo.add(ControllerLinkBuilder.linkTo(SecurityController.class).withSelfRel());
if (authenticationEnabled && SecurityContextHolder.getContext() != null) {
final Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
if (!(authentication instanceof AnonymousAuthenticationToken)) {
securityInfo.setAuthenticated(authentication.isAuthenticated());
securityInfo.setUsername(authentication.getName());
}
}
return securityInfo;
}
}