TSK-445: user info endpoint.

lib/taskana-core/src/main/java/pro/taskana/impl/TaskanaEngineImpl.java

@@ -252,7 +252,7 @@ public class TaskanaEngineImpl implements TaskanaEngine {
      *            The roles that are checked for membership of the current user
      * @return true if the current user is a member of at least one of the specified groups
      */
-    boolean isUserInRole(TaskanaRole... roles) {
+    public boolean isUserInRole(TaskanaRole... roles) {
         if (!getConfiguration().isSecurityEnabled()) {
             return true;
         } else {

rest/taskana-rest-spring-example/src/test/java/pro/taskana/rest/TaskanaEngineControllerIntTest.java

@@ -1,5 +1,6 @@
 package pro.taskana.rest;
 
+import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertTrue;
 
@@ -27,6 +28,9 @@ import org.springframework.web.client.RestTemplate;
 import com.fasterxml.jackson.databind.DeserializationFeature;
 import com.fasterxml.jackson.databind.ObjectMapper;
 
+import pro.taskana.TaskanaRole;
+import pro.taskana.rest.resource.TaskanaUserInfoResource;
+
 @RunWith(SpringRunner.class)
 @SpringBootTest(webEnvironment = WebEnvironment.RANDOM_PORT)
 @Import(RestConfiguration.class)
@@ -80,6 +84,22 @@ public class TaskanaEngineControllerIntTest {
         assertFalse(response.getBody().contains("UNKNOWN"));
     }
 
+    @Test
+    public void testGetCurrentUserInfo() {
+        RestTemplate template = getRestTemplate();
+        HttpHeaders headers = new HttpHeaders();
+        headers.add("Authorization", "Basic dGVhbWxlYWRfMTp0ZWFtbGVhZF8x");
+        HttpEntity<String> request = new HttpEntity<String>(headers);
+        ResponseEntity<TaskanaUserInfoResource> response = template.exchange(
+            "http://127.0.0.1:" + port + "/v1/current-user-info", HttpMethod.GET, request,
+            new ParameterizedTypeReference<TaskanaUserInfoResource>() {
+            });
+        assertEquals("teamlead_1", response.getBody().getUserId());
+        assertTrue(response.getBody().getGroupIds().contains("businessadmin"));
+        assertTrue(response.getBody().getRoles().contains(TaskanaRole.BUSINESS_ADMIN));
+        assertFalse(response.getBody().getRoles().contains(TaskanaRole.ADMIN));
+    }
+
     /**
      * Return a REST template which is capable of dealing with responses in HAL format
      *

rest/taskana-rest-spring/src/main/java/pro/taskana/rest/TaskanaEngineController.java

@@ -9,7 +9,11 @@ import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.RestController;
 
+import pro.taskana.TaskanaRole;
 import pro.taskana.configuration.TaskanaEngineConfiguration;
+import pro.taskana.impl.TaskanaEngineImpl;
+import pro.taskana.rest.resource.TaskanaUserInfoResource;
+import pro.taskana.security.CurrentUserContext;
 
 /**
  * Controller for TaskanaEngine related tasks.
@@ -20,6 +24,9 @@ public class TaskanaEngineController {
     @Autowired
     TaskanaEngineConfiguration taskanaEngineConfiguration;
 
+    @Autowired
+    TaskanaEngineImpl taskanaEngineImpl;
+
     @GetMapping(path = "/v1/domains", produces = {MediaType.APPLICATION_JSON_VALUE})
     public ResponseEntity<List<String>> getDomains() {
         return new ResponseEntity<>(taskanaEngineConfiguration.getDomains(), HttpStatus.OK);
@@ -34,4 +41,18 @@ public class TaskanaEngineController {
     public ResponseEntity<List<String>> getClassificationTypes() {
         return new ResponseEntity<>(taskanaEngineConfiguration.getClassificationTypes(), HttpStatus.OK);
     }
+
+    @GetMapping(path = "/v1/current-user-info", produces = {MediaType.APPLICATION_JSON_VALUE})
+    public ResponseEntity<TaskanaUserInfoResource> getCurrentUserInfo() {
+        TaskanaUserInfoResource resource = new TaskanaUserInfoResource();
+        resource.setUserId(CurrentUserContext.getUserid());
+        resource.setGroupIds(CurrentUserContext.getGroupIds());
+        for (TaskanaRole role : taskanaEngineConfiguration.getRoleMap().keySet()) {
+            if (taskanaEngineImpl.isUserInRole(role)) {
+                resource.getRoles().add(role);
+            }
+        }
+        return new ResponseEntity<>(resource, HttpStatus.OK);
+    }
+
 }

rest/taskana-rest-spring/src/main/java/pro/taskana/rest/resource/TaskanaUserInfoResource.java

@@ -0,0 +1,43 @@
+package pro.taskana.rest.resource;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.springframework.hateoas.ResourceSupport;
+
+import pro.taskana.TaskanaRole;
+
+/**
+ * Resource class for user information.
+ */
+public class TaskanaUserInfoResource extends ResourceSupport {
+
+    private String userId;
+    private List<String> groupIds = new ArrayList<>();
+    private List<TaskanaRole> roles = new ArrayList<>();
+
+    public String getUserId() {
+        return userId;
+    }
+
+    public void setUserId(String userId) {
+        this.userId = userId;
+    }
+
+    public List<String> getGroupIds() {
+        return groupIds;
+    }
+
+    public void setGroupIds(List<String> groupIds) {
+        this.groupIds = groupIds;
+    }
+
+    public List<TaskanaRole> getRoles() {
+        return roles;
+    }
+
+    public void setRoles(List<TaskanaRole> roles) {
+        this.roles = roles;
+    }
+
+}