com.hillert.botanic.controller.AuthenticationController.java Source code

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Here is the source code for com.hillert.botanic.controller.AuthenticationController.java

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/*
 * 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 com.hillert.botanic.controller;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import java.util.HashMap;
import java.util.Map;

import com.hillert.botanic.controller.dto.AuthenticationRequest;
import com.hillert.botanic.controller.dto.AuthenticationToken;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.web.context.HttpSessionSecurityContextRepository;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;

/**
 * This controller generates the {@link AuthenticationToken} that must be present
 * in subsequent REST invocations.
 *
 * @author Gunnar Hillert
 * @since 1.0
 *
 */
@RestController
public class AuthenticationController {

    private final AuthenticationManager authenticationManager;
    private final UserDetailsService userDetailsService;

    @Autowired
    public AuthenticationController(AuthenticationManager am, UserDetailsService userDetailsService) {
        this.authenticationManager = am;
        this.userDetailsService = userDetailsService;
    }

    @RequestMapping(value = "/authenticate", method = { RequestMethod.POST })
    public AuthenticationToken authorize(@RequestBody AuthenticationRequest authenticationRequest,
            HttpServletRequest request) {

        UsernamePasswordAuthenticationToken token = new UsernamePasswordAuthenticationToken(
                authenticationRequest.getUsername(), authenticationRequest.getPassword());
        Authentication authentication = this.authenticationManager.authenticate(token);
        SecurityContextHolder.getContext().setAuthentication(authentication);
        HttpSession session = request.getSession(true);
        session.setAttribute(HttpSessionSecurityContextRepository.SPRING_SECURITY_CONTEXT_KEY,
                SecurityContextHolder.getContext());

        UserDetails details = this.userDetailsService.loadUserByUsername(authenticationRequest.getUsername());

        final Map<String, Boolean> roles = new HashMap<String, Boolean>();

        for (GrantedAuthority authority : details.getAuthorities()) {
            roles.put(authority.toString(), Boolean.TRUE);
        }

        return new AuthenticationToken(details.getUsername(), roles, session.getId());
    }
}