BAEL-315 Removing custom success handler in favor of the default redirect.

spring-cloud/spring-cloud-bootstrap/gateway/src/main/java/com/baeldung/spring/cloud/bootstrap/gateway/CustomAuthenticationHandler.java

@@ -1,54 +0,0 @@
-package com.baeldung.spring.cloud.bootstrap.gateway;
-
-import org.springframework.security.core.Authentication;
-import org.springframework.security.web.WebAttributes;
-import org.springframework.security.web.authentication.AbstractAuthenticationTargetUrlRequestHandler;
-import org.springframework.security.web.authentication.AuthenticationSuccessHandler;
-
-import javax.servlet.ServletException;
-import javax.servlet.http.HttpServletRequest;
-import javax.servlet.http.HttpServletResponse;
-import javax.servlet.http.HttpSession;
-import java.io.IOException;
-
-public class CustomAuthenticationHandler extends AbstractAuthenticationTargetUrlRequestHandler implements AuthenticationSuccessHandler{
-
-    public CustomAuthenticationHandler() {
-    }
-
-    /**
-     * Constructor which sets the <tt>defaultTargetUrl</tt> property of the base class.
-     * @param defaultTargetUrl the URL to which the user should be redirected on
-     * successful authentication.
-     */
-    public CustomAuthenticationHandler(String defaultTargetUrl) {
-        setDefaultTargetUrl(defaultTargetUrl);
-    }
-
-    /**
-     * Calls the parent class {@code handle()} method to forward or redirect to the target
-     * URL, and then calls {@code clearAuthenticationAttributes()} to remove any leftover
-     * session data.
-     */
-    public void onAuthenticationSuccess(HttpServletRequest request,
-                                               HttpServletResponse response, Authentication authentication)
-            throws IOException, ServletException {
-        response.setStatus(303);
-        handle(request, response, authentication);
-        clearAuthenticationAttributes(request);
-    }
-
-    /**
-     * Removes temporary authentication-related data which may have been stored in the
-     * session during the authentication process.
-     */
-    protected final void clearAuthenticationAttributes(HttpServletRequest request) {
-        HttpSession session = request.getSession(false);
-
-        if (session == null) {
-            return;
-        }
-
-        session.removeAttribute(WebAttributes.AUTHENTICATION_EXCEPTION);
-    }
-}

spring-cloud/spring-cloud-bootstrap/gateway/src/main/java/com/baeldung/spring/cloud/bootstrap/gateway/SecurityConfig.java

@@ -28,7 +28,6 @@ public class SecurityConfig extends WebSecurityConfigurerAdapter {
                 .anyRequest().authenticated()
                 .and()
             .formLogin()
-                .successHandler(new CustomAuthenticationHandler("/resource/hello/user"))
                 .and()
             .logout().permitAll()
                 .logoutSuccessUrl("/resource/hello/cloud").permitAll()

spring-cloud/spring-cloud-bootstrap/gateway/src/main/java/com/baeldung/spring/cloud/bootstrap/gateway/filter/SessionSavingZuulPreFilter.java

@@ -1,4 +1,4 @@
-package com.baeldung.spring.cloud.bootstrap.gateway;
+package com.baeldung.spring.cloud.bootstrap.gateway.filter;
 
 import com.netflix.zuul.ZuulFilter;
 import com.netflix.zuul.context.RequestContext;