[58] | 1 | /* Copyright 2006-2009 the original author or authors. |
---|
| 2 | * |
---|
| 3 | * Licensed under the Apache License, Version 2.0 (the "License"); |
---|
| 4 | * you may not use this file except in compliance with the License. |
---|
| 5 | * You may obtain a copy of the License at |
---|
| 6 | * |
---|
| 7 | * http://www.apache.org/licenses/LICENSE-2.0 |
---|
| 8 | * |
---|
| 9 | * Unless required by applicable law or agreed to in writing, software |
---|
| 10 | * distributed under the License is distributed on an "AS IS" BASIS, |
---|
| 11 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
---|
| 12 | * See the License for the specific language governing permissions and |
---|
| 13 | * limitations under the License. |
---|
| 14 | */ |
---|
| 15 | package org.codehaus.groovy.grails.plugins.springsecurity.facebook; |
---|
| 16 | |
---|
| 17 | import org.springframework.beans.factory.InitializingBean; |
---|
| 18 | import org.springframework.security.Authentication; |
---|
| 19 | import org.springframework.security.AuthenticationException; |
---|
| 20 | import org.springframework.security.AuthenticationServiceException; |
---|
| 21 | import org.springframework.security.BadCredentialsException; |
---|
| 22 | import org.springframework.security.providers.AuthenticationProvider; |
---|
| 23 | import org.springframework.security.userdetails.UserDetails; |
---|
| 24 | import org.springframework.security.userdetails.UserDetailsService; |
---|
| 25 | import org.springframework.util.Assert; |
---|
| 26 | |
---|
| 27 | /** |
---|
| 28 | * Finalizes the authentication process by populating the local authorities for the authenticated user. |
---|
| 29 | * |
---|
| 30 | * @author <a href='mailto:beckwithb@studentsonly.com'>Burt Beckwith</a> |
---|
| 31 | */ |
---|
| 32 | public class FacebookAuthenticationProvider implements AuthenticationProvider, InitializingBean { |
---|
| 33 | |
---|
| 34 | private UserDetailsService _userDetailsService; |
---|
| 35 | |
---|
| 36 | /** |
---|
| 37 | * {@inheritDoc} |
---|
| 38 | * @see org.springframework.security.providers.AuthenticationProvider#authenticate( |
---|
| 39 | * org.springframework.security.Authentication) |
---|
| 40 | */ |
---|
| 41 | public Authentication authenticate(final Authentication authentication) throws AuthenticationException { |
---|
| 42 | |
---|
| 43 | if (!supports(authentication.getClass()) || |
---|
| 44 | !(authentication instanceof FacebookAuthenticationToken)) { |
---|
| 45 | return null; |
---|
| 46 | } |
---|
| 47 | |
---|
| 48 | FacebookAuthenticationToken token = (FacebookAuthenticationToken)authentication; |
---|
| 49 | FacebookAuthenticationToken.Status status = token.getStatus(); |
---|
| 50 | |
---|
| 51 | switch (status) { |
---|
| 52 | case success: |
---|
| 53 | UserDetails userDetails = _userDetailsService.loadUserByUsername(String.valueOf(token.getUserId())); |
---|
| 54 | return new FacebookAuthenticationToken(userDetails.getAuthorities(), |
---|
| 55 | token.getUserId(), token.getSessionKey()); |
---|
| 56 | case failure: |
---|
| 57 | throw new BadCredentialsException("Log in failed - identity could not be verified"); |
---|
| 58 | case error: |
---|
| 59 | throw new AuthenticationServiceException("Error message from server: " + token.getErrorMessage()); |
---|
| 60 | } |
---|
| 61 | |
---|
| 62 | // unreachable |
---|
| 63 | return null; |
---|
| 64 | } |
---|
| 65 | |
---|
| 66 | /** |
---|
| 67 | * Dependency injection for the user detail service. |
---|
| 68 | * @param userDetailsService the service |
---|
| 69 | */ |
---|
| 70 | public void setUserDetailsService(final UserDetailsService userDetailsService) { |
---|
| 71 | _userDetailsService = userDetailsService; |
---|
| 72 | } |
---|
| 73 | |
---|
| 74 | /** |
---|
| 75 | * {@inheritDoc} |
---|
| 76 | * @see org.springframework.security.providers.AuthenticationProvider#supports(java.lang.Class) |
---|
| 77 | */ |
---|
| 78 | @SuppressWarnings("unchecked") |
---|
| 79 | public boolean supports(final Class authentication) { |
---|
| 80 | return FacebookAuthenticationToken.class.isAssignableFrom(authentication); |
---|
| 81 | } |
---|
| 82 | |
---|
| 83 | /** |
---|
| 84 | * {@inheritDoc} |
---|
| 85 | * @see org.springframework.beans.factory.InitializingBean#afterPropertiesSet() |
---|
| 86 | */ |
---|
| 87 | public void afterPropertiesSet() { |
---|
| 88 | Assert.notNull(_userDetailsService, "The userDetailsService must be set"); |
---|
| 89 | } |
---|
| 90 | } |
---|