a9tCzfuc

1package sample;
2
3import org.springframework.context.annotation.Bean;
4import org.springframework.context.annotation.Configuration;
5import org.springframework.security.core.Authentication;
6import org.springframework.security.core.context.SecurityContextHolder;
7import org.springframework.security.oauth2.client.OAuth2AuthorizedClient;
8import org.springframework.security.oauth2.client.OAuth2AuthorizedClientService;
9import org.springframework.security.oauth2.client.authentication.OAuth2AuthenticationToken;
10import org.springframework.web.context.annotation.RequestScope;
11
12import sample.api.facebook.Facebook;
13
14@Configuration
15public class SocialConfig {
16
17	@Bean
18	@RequestScope
19	public Facebook facebook(OAuth2AuthorizedClientService clientService) {
20		Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
21		String accessToken = null;
22		if (authentication.getClass().isAssignableFrom(OAuth2AuthenticationToken.class)) {
23			OAuth2AuthenticationToken oauthToken = (OAuth2AuthenticationToken) authentication;
24			String clientRegistrationId = oauthToken.getAuthorizedClientRegistrationId();
25			if (clientRegistrationId.equals("facebook")) {
26				OAuth2AuthorizedClient client = clientService.loadAuthorizedClient(clientRegistrationId, oauthToken.getName());
27				accessToken = client.getAccessToken().getTokenValue();
28			}
29		}
30		return new Facebook(accessToken);
31	}
32	
33}
34