skeleton of end session endpoint, maybe need a change to user info lookup

openid-connect-server/src/main/java/org/mitre/openid/connect/web/EndSessionEndpoint.java

@@ -0,0 +1,94 @@
+/*******************************************************************************
+ * Copyright 2017 The MITRE Corporation
+ *   and the MIT Internet Trust Consortium
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *******************************************************************************/
+
+package org.mitre.openid.connect.web;
+
+import java.text.ParseException;
+
+import javax.servlet.http.HttpServletRequest;
+
+import org.mitre.jwt.assertion.AssertionValidator;
+import org.mitre.jwt.assertion.impl.SelfAssertionValidator;
+import org.mitre.openid.connect.service.UserInfoService;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.security.core.Authentication;
+import org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestWrapper;
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+
+import com.google.common.base.Strings;
+import com.nimbusds.jwt.JWT;
+import com.nimbusds.jwt.JWTParser;
+
+/**
+ * @author jricher
+ *
+ */
+@Controller
+public class EndSessionEndpoint {
+
+	public static final String URL = "endsession";
+	
+	private static Logger logger = LoggerFactory.getLogger(EndSessionEndpoint.class);
+	
+	private AssertionValidator validator = new SelfAssertionValidator();
+	
+	@Autowired
+	private UserInfoService userInfoService;
+	
+	@RequestMapping(value = "/" + URL)
+	public String endSession(@RequestParam (value = "id_token_hint", required = false) String idTokenHint,  
+		    @RequestParam (value = "post_logout_redirect_uri", required = false) String postLogoutRedirectUri,
+		    @RequestParam (value = "state", required = false) String state,
+		    HttpServletRequest request,
+		    Authentication auth, Model m) {
+
+		// are we logged in or not?
+		if (auth == null || !request.isUserInRole("ROLE_USER")) {
+			// we're not logged in, process the logout
+			return null;
+		} else {
+			// we are logged in, need to prompt the user before we log out
+		
+			// parse the ID token hint to see if it's valid
+			if (!Strings.isNullOrEmpty(idTokenHint)) {
+				try {
+					JWT idToken = JWTParser.parse(idTokenHint);
+					
+					if (validator.isValid(idToken)) {
+						// we issued this ID token, figure out who it's for
+						String subject = idToken.getJWTClaimsSet().getSubject();
+						
+						userInfoService.getByUsername(subject);
+						
+					}
+				} catch (ParseException e) {
+					
+				} 
+				
+			}
+			
+			// display the end session page
+			return "endSession";
+		}
+	}
+	
+}