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How to implement a custom filter in Spring Security?

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Deepika Sahu answered on December 24, 2022 Popularity 7/10 Helpfulness 2/10

answer How to implement a custom filter in Spring Security?

related Writing Custom Spring Security Filter

related Configure Custom Filter With Spring Security

How to implement a custom filter in Spring Security?

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You can implement a custom filter in Spring security by implementing the org.springframework.web.filter.GenericFilterBean class. 
The GenericFilterBean is a simple javax.servlet.Filter implementation which is Spring aware. 
You can override doFilter(ServletRequest req, ServletResponse res, FilterChain chain) to implement your own logic.

Read more: https://javarevisited.blogspot.com/2021/02/spring-security-interview-questions-answers-java.html#ixzz7oQ6xmtMu

Popularity 7/10 Helpfulness 2/10 Language java

Source: Grepper

Tags: filter java

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Contributed on Dec 24 2022

Deepika Sahu

0 Answers Avg Quality 2/10

Closely Related Answers

Writing Custom Spring Security Filter

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package com.javadevjournal.core.security.filter;

import org.apache.commons.lang3.StringUtils;
import org.springframework.web.filter.GenericFilterBean;

import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

public class CustomHeaderAuthFilter extends GenericFilterBean {

    @Override
    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {

        var request = (HttpServletRequest) servletRequest;
        var response = (HttpServletResponse) servletResponse;

        //if header is missing , send un-athorized error back
        String authHeader = request.getHeader("X-HEADER");
        if (StringUtils.isEmpty(authHeader)) {
            response.setStatus(
                HttpServletResponse.SC_UNAUTHORIZED);
        } else {
            filterChain.doFilter(servletRequest, servletResponse);
        }
    }
}

Popularity 4/10 Helpfulness 1/10 Language whatever

Source: www.javadevjournal.com

Tags: spring-security whatever filter

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Contributed on Apr 22 2023

Satinder Rawal

0 Answers Avg Quality 2/10

Configure Custom Filter With Spring Security

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@Configuration
public class AppSecurityConfigurerAdapter
  extends WebSecurityConfigurerAdapter {

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http.addFilterAfter(
            customAuthFilter(), BasicAuthenticationFilter.class);
    }
}

@Bean
public CustomHeaderAuthFilter customAuthFilter(){
  return new CustomHeaderAuthFilter();
}

Popularity 3/10 Helpfulness 1/10 Language java

Source: www.javadevjournal.com

Tags: filter spring-security java configure

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Contributed on Apr 22 2023

Satinder Rawal

0 Answers Avg Quality 2/10

How to implement a custom filter in Spring Security?

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How to implement a custom filter in Spring Security?

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Writing Custom Spring Security Filter

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