keycloak-developers

diff --git a/integration/spring-security/src/main/java/org/keycloak/adapters/springsecurity/authentication/KeycloakLogoutHandler.java b/integration/spring-security/src/main/java/org/keycloak/adapters/springsecurity/authentication/KeycloakLogoutHandler.java
index 2879a06..6a64765 100644
--- a/integration/spring-security/src/main/java/org/keycloak/adapters/springsecurity/authentication/KeycloakLogoutHandler.java
+++ b/integration/spring-security/src/main/java/org/keycloak/adapters/springsecurity/authentication/KeycloakLogoutHandler.java
@@ -1,14 +1,16 @@
 package org.keycloak.adapters.springsecurity.authentication;
 
 import org.keycloak.adapters.KeycloakDeployment;
+import org.keycloak.adapters.RefreshableKeycloakSecurityContext;
 import org.keycloak.adapters.springsecurity.AdapterDeploymentContextBean;
+import org.keycloak.adapters.springsecurity.token.KeycloakAuthenticationToken;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.security.authentication.AnonymousAuthenticationToken;
 import org.springframework.security.core.Authentication;
+import org.springframework.security.core.context.SecurityContextHolder;
 import org.springframework.security.web.authentication.logout.LogoutHandler;
 import org.springframework.util.Assert;
-import org.springframework.web.util.UriComponentsBuilder;
 
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
@@ -22,7 +24,6 @@ import java.io.IOException;
  */
 public class KeycloakLogoutHandler implements LogoutHandler {
 
-    public static final String SSO_LOGOUT_COMPLETE_PARAM = "sso_complete";
     private static final Logger log = LoggerFactory.getLogger(KeycloakLogoutHandler.class);
 
     private AdapterDeploymentContextBean deploymentContextBean;
@@ -40,30 +41,24 @@ public class KeycloakLogoutHandler implements LogoutHandler {
             return;
         }
 
-        if (Boolean.valueOf(request.getParameter(SSO_LOGOUT_COMPLETE_PARAM))) {
-            // already logged out
-            return;
-        }
-
         try {
             handleSingleSignOut(request, response);
         } catch (IOException e) {
-            throw new IllegalStateException("Unable to redirect to SSO url!", e);
+            throw new IllegalStateException("Unable to make logout admin request!", e);
         }
 
     }
 
-    protected String createRedirectUrl(HttpServletRequest request) {
-
-        return UriComponentsBuilder.fromHttpUrl(request.getRequestURL().toString())
-                .replaceQueryParam(SSO_LOGOUT_COMPLETE_PARAM, true).build().toUriString();
-    }
-
     protected void handleSingleSignOut(HttpServletRequest request, HttpServletResponse response) throws IOException {
 
+        KeycloakAuthenticationToken authentication = (KeycloakAuthenticationToken) SecurityContextHolder.getContext().getAuthentication();
         KeycloakDeployment deployment = deploymentContextBean.getDeployment();
-        String redirectUrl = createRedirectUrl(request);
+        RefreshableKeycloakSecurityContext session = (RefreshableKeycloakSecurityContext) authentication.getAccount().getKeycloakSecurityContext();
 
-        response.sendRedirect(deployment.getLogoutUrl().queryParam("redirect_uri", redirectUrl).build().toASCIIString());
+        try {
+            session.logout(deployment);
+        } catch (Exception e) {
+            log.error("Unable to complete Keycloak single sign out", e);
+        }
     }
 }