스프링 시큐리티 DelegatingFilterProxy 상속 받아 custom filter를 생성할 수 있는 방법이 있는가?

떠돌이개발자May 4, 2023

로그인 전 특정 url를 대한 별도 처리를 위해 DelegatingFilterProxy 확장하여 커스텀 필터를 하나 생성하였다.

import java.io.IOException;
import java.util.List;

import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.web.filter.DelegatingFilterProxy;

public class CheckFilter extends DelegatingFilterProxy {
	private Logger log = LoggerFactory.getLogger(this.getClass());
	 
    private List<String> excludeUrls;
	 
	@Override
	public void doFilter(ServletRequest request, ServletResponse response, FilterChain filterChain)
			throws ServletException, IOException {

		System.out.println("-- Called CheckFilter --");

		HttpServletRequest req = (HttpServletRequest) request;
		log.info("Request Info : " + req);
		
		String path = ((HttpServletRequest) request).getServletPath();	
		if(excludeUrls.contains(path))
		{
		    // 다음 필터 실행
			filterChain.doFilter(request, response);
		}
		
//		String url = req.getRequestURI();
//		if("/test/pop.do".equals(url)) {
//					    // 다음 필터 실행
			//filterChain.doFilter(request, response);
//		}else {
//			// 부모 필터 실행
//			super.doFilter(request, response, filterChain);			
//		}
		
		super.doFilter(request, response, filterChain);
	}

	public boolean matches(HttpServletRequest request) {

        if (request.getRequestURL().indexOf("verify") != -1)
            return false;
        else if (request.getRequestURL().indexOf("homePage") != -1)         
            return false;

        return true;
    }
}

[web.xml]

	<filter>
		<filter-name>checkFilter</filter-name>
		<filter-class>com.test.filter.CheckURlFilter</filter-class>
	</filter>
    
	<filter-mapping>
		<filter-name>checkFilter</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>
    
	<!-- spring security filter --> 	
    <!-- 
	<filter>
		<filter-name>springSecurityFilterChain</filter-name>
		<filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
	</filter>

	<filter-mapping>
		<filter-name>springSecurityFilterChain</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping> 
     -->

스프링 시큐리티 관련 필터는 주석처리 하였다.

그러나 No bean named ” is defined 오류가 발생되었다.

스프링 시큐리티 자체 필터를 확장하여 생성한 필터여서 그런것인가?

[오류 내용]

심각: Exception starting filter checkFilter
org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'checkFilter' is defined
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanDefinition(DefaultListableBeanFactory.java:577)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getMergedLocalBeanDefinition(AbstractBeanFactory.java:1111)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:276)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:195)
	at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1131)
	at org.springframework.web.filter.DelegatingFilterProxy.initDelegate(DelegatingFilterProxy.java:323)
	at org.springframework.web.filter.DelegatingFilterProxy.initFilterBean(DelegatingFilterProxy.java:235)
	at org.springframework.web.filter.GenericFilterBean.init(GenericFilterBean.java:194)
	at org.apache.catalina.core.ApplicationFilterConfig.initFilter(ApplicationFilterConfig.java:279)
	at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:260)
	at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:105)
	at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4950)
	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5652)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1700)
	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1690)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)

<filter-name>을 checkFilter에서 springSecurityFilterChain 로 변경 후 서버를 재기동하였더니 오류가 사라졌다.

하지만 아무런 동작을 하지 않았다. 결국 다른 방법으로 해결해야하는 상황에 노였다.

스프링시큐리티를 우회할 수 있는 방법을 찾아봐야 할 것 같다.

아래 방법으로도 해결이 될까?

[Spring] web.xml – Filter url 제외시키기

Filter URL Exclude 얼마 전 2차 인증을 구현해야 하는 업무 도중 Spring Security를 사용하다가, 로그인 부분에 덕지덕지 붙이는 것 같아 분명 빠른 길이 있는데, 먼 길을 돌아가는 것 같았다. 굳이 로그인

redcoder.tistory.com

	<filter>
		<filter-name>domainFilter</filter-name>
		<filter-class>com.test.CheckDomainFilter</filter-class>
		<init-param>
			<param-name>excludedUrls</param-name>
			<param-value>login.do,logout.do</param-value>
		</init-param>
	</filter>

	<filter-mapping>
		<filter-name>domainFilter</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>

import java.io.IOException;
import java.util.Arrays;
import java.util.List;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.web.filter.DelegatingFilterProxy;

/**
 * Servlet Filter implementation class CheckDomainFilter
 */
@WebFilter("/CheckDomainFilter")
public class CheckDomainFilter implements Filter {
	private Logger log = LoggerFactory.getLogger(this.getClass());
	 
	 private List<String> excludeUrls;
	 private String filterName = "springSecurityFilterChain"; // web.xml 설정된 빈네임(filter-name)
    /**
     * Default constructor. 
     */
    public CheckDomainFilter() {
        // TODO Auto-generated constructor stub
    }

	/**
	 * @see Filter#init(FilterConfig)
	 */
	public void init(FilterConfig fConfig) throws ServletException {
		// TODO Auto-generated method stub
		String excludePattern = fConfig.getInitParameter("excludedUrls");
		excludeUrls = Arrays.asList(excludePattern.split(","));
	}

	/**
	 * @see Filter#doFilter(ServletRequest, ServletResponse, FilterChain)
	 */
	public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
		// TODO Auto-generated method stub
		// place your code here
		System.out.println("-- Called CheckDomainFilter --");

		HttpServletRequest req = (HttpServletRequest) request;
		log.info("Request Info : " + req);
		
		String path = ((HttpServletRequest) request).getServletPath();
		
		if(!excludeUrls.contains(path))
		{
		    // 제외하지 않는 경우
			// 로직을 타게 합니다.
			DelegatingFilterProxy springSecurityFilterChain = new DelegatingFilterProxy();		 
			springSecurityFilterChain.setTargetBeanName(filterName);			
		}
		
		chain.doFilter(request, response);			
		
//		String url = req.getRequestURI();
//		if("".equals(url)) {
//			
//		}else {
//			// pass the request along the filter chain
//			chain.doFilter(request, response);			
//		}		
		

	}

	public boolean matches(HttpServletRequest request) {

        if (request.getRequestURL().indexOf("verify") != -1)
            return false;
        else if (request.getRequestURL().indexOf("homePage") != -1)         
            return false;

        return true;
    }

	/**
	 * @see Filter#destroy()
	 */
	public void destroy() {
		// TODO Auto-generated method stub
	}

}

따라하다가 작업을 중단하였다. 다른 방법으로 접근 시도 중이다.

[연관자료]

[REFERENCE]

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