Adds logout to password grant sample app

Author: Chris Dutra

Diff for: authcode/src/main/java/org/cloudfoundry/identity/samples/authcode/Application.java

@@ -15,6 +15,7 @@
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.ComponentScan;
 import org.springframework.context.annotation.Configuration;
+import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
 import org.springframework.security.core.Authentication;
 import org.springframework.security.core.context.SecurityContextHolder;
 import org.springframework.security.oauth2.client.OAuth2RestTemplate;

Diff for: password/src/main/java/org/cloudfoundry/identity/samples/password/Application.java

@@ -1,11 +1,9 @@
 package org.cloudfoundry.identity.samples.password;
 
 import java.io.IOException;
-import java.util.Arrays;
 import java.util.Collections;
 import java.util.Map;
 
-import com.fasterxml.jackson.core.JsonParseException;
 import org.apache.commons.codec.binary.Base64;
 import org.cloudfoundry.identity.samples.oauth2.composite.CompositeAccessTokenProvider;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -18,10 +16,6 @@
 import org.springframework.security.oauth2.client.OAuth2RestTemplate;
 import org.springframework.security.oauth2.client.token.AccessTokenProvider;
 import org.springframework.security.oauth2.client.token.AccessTokenProviderChain;
-import org.springframework.security.oauth2.client.token.grant.client.ClientCredentialsAccessTokenProvider;
-import org.springframework.security.oauth2.client.token.grant.code.AuthorizationCodeAccessTokenProvider;
-import org.springframework.security.oauth2.client.token.grant.implicit.ImplicitAccessTokenProvider;
-import org.springframework.security.oauth2.client.token.grant.password.ResourceOwnerPasswordAccessTokenProvider;
 import org.springframework.stereotype.Controller;
 import org.springframework.ui.Model;
 import org.springframework.web.bind.annotation.RequestMapping;
@@ -38,6 +32,10 @@
 import org.springframework.web.bind.annotation.RequestParam;
 
 import javax.annotation.PostConstruct;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+import static org.springframework.web.bind.annotation.RequestMethod.GET;
 
 @Configuration
 @EnableAutoConfiguration
@@ -133,4 +131,11 @@ ResourceOwnerPasswordResourceDetails passwordGrantResourceDetails() {
     public OAuth2RestTemplate passwordGrantRestTemplate() {
         return new OAuth2RestTemplate(passwordGrantResourceDetails());
     }
+
+
+    @RequestMapping(value="/logout", method = GET)
+    public String logout(HttpServletRequest request, HttpServletResponse response) throws IOException {
+        this.oAuth2RestTemplate.getOAuth2ClientContext().setAccessToken(null);
+        return "redirect:/password";
+    }
 }

Diff for: password/src/main/resources/templates/password_result.html

@@ -20,5 +20,12 @@ <h1>Password Grant Sample</h1>
 <p>This is the ID Token:</p>
 <pre th:text="${id_token}"></pre>
 
+<h2>What do you want to do?</h2>
+<ul>
+    <li>
+        <a href="/logout">Log out</a>
+    </li>
+</ul>
+
 </body>
 </html>