최종 변경 : 2024.03.24

모식도

• FilterChainProxy

DelegatingFilterProxy

• 시큐리티 DelegatingFilterProxy 등록 Config : SecurityAutoConfiguration

@AutoConfiguration(after = SecurityAutoConfiguration.class)
@ConditionalOnWebApplication(type = Type.SERVLET)
@EnableConfigurationProperties(SecurityProperties.class)
@ConditionalOnClass({ AbstractSecurityWebApplicationInitializer.class, SessionCreationPolicy.class })
public class SecurityFilterAutoConfiguration {

	private static final String DEFAULT_FILTER_NAME = AbstractSecurityWebApplicationInitializer.DEFAULT_FILTER_NAME;

	@Bean
	@ConditionalOnBean(name = DEFAULT_FILTER_NAME)
	public DelegatingFilterProxyRegistrationBean securityFilterChainRegistration(
			SecurityProperties securityProperties) {
		DelegatingFilterProxyRegistrationBean registration = new DelegatingFilterProxyRegistrationBean(
				DEFAULT_FILTER_NAME);
		registration.setOrder(securityProperties.getFilter().getOrder());
		registration.setDispatcherTypes(getDispatcherTypes(securityProperties));
		return registration;
	}

	private EnumSet<DispatcherType> getDispatcherTypes(SecurityProperties securityProperties) {
		if (securityProperties.getFilter().getDispatcherTypes() == null) {
			return null;
		}
		return securityProperties.getFilter()
			.getDispatcherTypes()
			.stream()
			.map((type) -> DispatcherType.valueOf(type.name()))
			.collect(Collectors.toCollection(() -> EnumSet.noneOf(DispatcherType.class)));
	}

}

이때 등록되는 DelegatingFilterProxy의 이름은 springSecurityFilterChain (스프링 시큐리티 의존성을 추가하면 자동으로 등록 됨)

• DelegatingFilterProxy