Move custom filter examples (#1465)

* Move custom filter examples

* Remove unused README entry

spring-security-basic-auth/README.md

@@ -7,7 +7,6 @@ The "Learn Spring Security" Classes: http://github.learnspringsecurity.com
 
 ### Relevant Article: 
 - [Spring Security Basic Authentication](http://www.baeldung.com/spring-security-basic-authentication)
-- [Writing a Custom Filter in Spring Security](http://www.baeldung.com/spring-security-custom-filter)
 
 
 ### Notes

spring-security-basic-auth/src/main/java/org/baeldung/security/filter/CustomFilter.java

@@ -1,18 +0,0 @@
-package org.baeldung.security.filter;
-
-import org.springframework.web.filter.GenericFilterBean;
-
-import javax.servlet.FilterChain;
-import javax.servlet.ServletException;
-import javax.servlet.ServletRequest;
-import javax.servlet.ServletResponse;
-import java.io.IOException;
-
-public class CustomFilter extends GenericFilterBean {
-
-    @Override
-    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
-        chain.doFilter(request, response);
-    }
-
-}

spring-security-basic-auth/src/main/java/org/baeldung/security/filter/configuration/CustomWebSecurityConfigurerAdapter.java

@@ -1,31 +0,0 @@
-package org.baeldung.security.filter.configuration;
-
-import org.baeldung.security.basic.MyBasicAuthenticationEntryPoint;
-import org.baeldung.security.filter.CustomFilter;
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.context.annotation.Configuration;
-import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
-import org.springframework.security.config.annotation.web.builders.HttpSecurity;
-import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
-import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
-import org.springframework.security.web.authentication.www.BasicAuthenticationFilter;
-
-@Configuration
-@EnableWebSecurity
-public class CustomWebSecurityConfigurerAdapter extends WebSecurityConfigurerAdapter {
-
-    @Autowired
-    private MyBasicAuthenticationEntryPoint authenticationEntryPoint;
-
-    @Autowired
-    public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
-        auth.inMemoryAuthentication().withUser("user1").password("user1Pass").authorities("ROLE_USER");
-    }
-
-    @Override
-    protected void configure(HttpSecurity http) throws Exception {
-        http.authorizeRequests().antMatchers("/securityNone").permitAll().anyRequest().authenticated().and().httpBasic().authenticationEntryPoint(authenticationEntryPoint);
-
-        http.addFilterAfter(new CustomFilter(), BasicAuthenticationFilter.class);
-    }
-}

spring-security-basic-auth/src/main/resources/webSecurityConfig.xml

@@ -11,8 +11,6 @@
         <intercept-url pattern="/**" access="isAuthenticated()"/>
 
         <http-basic entry-point-ref="myBasicAuthenticationEntryPoint"/>
-
-        <custom-filter after="BASIC_AUTH_FILTER" ref="myFilter" />
     </http>
 
     <authentication-manager>
@@ -22,7 +20,4 @@
             </user-service>
         </authentication-provider>
     </authentication-manager>
-
-    <beans:bean id="myFilter" class="org.baeldung.security.filter.CustomFilter"/>
-
 </beans:beans>