EnableOAuth2Sso simultaneously for multiple social networks

Question

I am implementing a spring boot application that needs to provide OAuth2 token authorization and support multiple social services (google+, facebook etc). The user should be

Answer 1

Indeed, please check the link posted by Mario (not sure why it was downvoted..): social_login_manual

The link says that @EnableOAuth2Sso is essentially a combination of @EnableOAuth2Client and some additional magic. The downside is you can't easily customize its behavior to support multiple providers. Thus in the tutorial it is suggested to replace it with @EnableOAuth2Client instead and go by repeating what @EnableOAuth2Sso does under the hood with some custom additions.

So, here is how it looks like:

@SpringBootApplication
@EnableOAuth2Client
@RestController
public class SocialApplication extends WebSecurityConfigurerAdapter {

   private Filter ssoFilter() {
      CompositeFilter filter = new CompositeFilter();
      List filters = new ArrayList<>();
      filters.add(ssoFilter(facebook(), "/login/facebook"));
      filters.add(ssoFilter(github(), "/login/github"));
      filter.setFilters(filters);
      return filter;
    }



 private Filter ssoFilter(ClientResources client, String path) {
      OAuth2ClientAuthenticationProcessingFilter filter = new OAuth2ClientAuthenticationProcessingFilter(path);
      OAuth2RestTemplate template = new OAuth2RestTemplate(client.getClient(), oauth2ClientContext);
      filter.setRestTemplate(template);
      filter.setTokenServices(new UserInfoTokenServices(
          client.getResource().getUserInfoUri(), client.getClient().getClientId()));
      return filter;
    }

  @Bean
    @ConfigurationProperties("github")
    public ClientResources github() {
      return new ClientResources();
    }

  @Bean
    @ConfigurationProperties("facebook")
    public ClientResources facebook() {
      return new ClientResources();
    }

}

class ClientResources {

  @NestedConfigurationProperty
  private AuthorizationCodeResourceDetails client = new AuthorizationCodeResourceDetails();

  @NestedConfigurationProperty
  private ResourceServerProperties resource = new ResourceServerProperties();

  public AuthorizationCodeResourceDetails getClient() {
    return client;
  }

  public ResourceServerProperties getResource() {
    return resource;
  }
}

facebook:
  client:
    clientId: 233668646673605
    clientSecret: 33b17e044ee6a4fa383f46ec6e28ea1d
    accessTokenUri: https://graph.facebook.com/oauth/access_token
    userAuthorizationUri: https://www.facebook.com/dialog/oauth
    tokenName: oauth_token
    authenticationScheme: query
    clientAuthenticationScheme: form
  resource:
    userInfoUri: https://graph.facebook.com/me
github:
  client:
    clientId: bd1c0a783ccdd1c9b9e4
    clientSecret: 1a9030fbca47a5b2c28e92f19050bb77824b5ad1
    accessTokenUri: https://github.com/login/oauth/access_token
    userAuthorizationUri: https://github.com/login/oauth/authorize
    clientAuthenticationScheme: form
  resource:
    userInfoUri: https://api.github.com/user