com.wwpass.springsecurity.authentication.WwpassAuthenticationProvider.java Source code

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Here is the source code for com.wwpass.springsecurity.authentication.WwpassAuthenticationProvider.java

Source

package com.wwpass.springsecurity.authentication;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.authentication.AuthenticationProvider;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.AuthenticationException;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.authority.AuthorityUtils;
import org.springframework.security.core.userdetails.AuthenticationUserDetailsService;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UsernameNotFoundException;
import org.springframework.stereotype.Component;

import java.util.Collection;

/*
 *
 * @copyright (c) WWPass Corporation, 2013
 * @author Stanislav Panyushkin <s.panyushkin@wwpass.com>
 *
 * 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.
 *
 */
@Component
public class WwpassAuthenticationProvider implements AuthenticationProvider {

    private final AuthenticationUserDetailsService<WwpassAuthenticationToken> userDetailsService;

    private final static String DEFAULT_WWPASS_ROLE = "ROLE_USER";

    private String wwpassUserRole;

    @Autowired
    public WwpassAuthenticationProvider(
            AuthenticationUserDetailsService<WwpassAuthenticationToken> userDetailsService) {
        this.userDetailsService = userDetailsService;
    }

    public Authentication authenticate(Authentication authentication) throws AuthenticationException {

        if (!supports(authentication.getClass())) {
            return null;
        }

        if (authentication instanceof WwpassAuthenticationToken) {
            WwpassAuthenticationToken token = (WwpassAuthenticationToken) authentication;

            String puid = token.getPuid();

            UserDetails user = null;
            if (puid != null) {
                user = userDetailsService.loadUserDetails(token);
            }
            if (user == null) {
                throw new UsernameNotFoundException("PUID not found.");
            }
            Collection<? extends GrantedAuthority> authorities = AuthorityUtils
                    .commaSeparatedStringToAuthorityList(getWwpassUserRole());

            return new WwpassAuthenticationToken(user, puid, authorities);
        }

        return null;
    }

    public boolean supports(Class<?> authentication) {
        return WwpassAuthenticationToken.class.isAssignableFrom(authentication);
    }

    public String getWwpassUserRole() {
        if (wwpassUserRole == null) {
            this.wwpassUserRole = DEFAULT_WWPASS_ROLE;
        }
        return wwpassUserRole;
    }

    public void setWwpassUserRole(String wwpassUserRole) {
        this.wwpassUserRole = wwpassUserRole;
    }

}