Allow Masquerading as a LTI user.

src/main/java/edu/ksu/canvas/constants/CanvasConstants.java

@@ -5,6 +5,7 @@ public class CanvasConstants {
     public static final String ACCOUNT_ID="1";
     public static final String MASQUERADE_SIS_USER="sis_user_id";
     public static final String MASQUERADE_CANVAS_USER="canvas_user_id";
+    public static final String MASQUERADE_LTI_USER="lti_1_3_id";
 
     public static final String URLENCODING_TYPE = "UTF-8";
 }

src/main/java/edu/ksu/canvas/impl/BaseImpl.java

@@ -98,6 +98,11 @@ public READERTYPE readAsCanvasUser(String masqueradeAs) {
     public READERTYPE readAsSisUser(String masqueradeAs) {
         return (READERTYPE) readAsUser(masqueradeAs, CanvasConstants.MASQUERADE_SIS_USER);
     }
+
+    @Override
+    public READERTYPE readAsLtiUser(String masqueradeAs) {
+        return (READERTYPE) readAsUser(masqueradeAs, CanvasConstants.MASQUERADE_LTI_USER);
+    }
 
     private READERTYPE readAsUser(String masqueradeAs, String masqueradeType){
         this.masqueradeAs = masqueradeAs;
@@ -114,6 +119,11 @@ public WRITERTYPE writeAsCanvasUser(String masqueradeAs) {
     public WRITERTYPE writeAsSisUser(String masqueradeAs) {
         return (WRITERTYPE) writeAsUser(masqueradeAs, CanvasConstants.MASQUERADE_SIS_USER);
     }
+
+    @Override
+    public WRITERTYPE writeAsLtiUser(String masqueradeAs) {
+        return (WRITERTYPE) writeAsUser(masqueradeAs, CanvasConstants.MASQUERADE_LTI_USER);
+    }
 
     private WRITERTYPE writeAsUser(String masqueradeAs, String masqueradeType){
         this.masqueradeAs = masqueradeAs;
@@ -139,6 +149,8 @@ protected String buildCanvasUrl(String canvasMethod, Map<String, List<String>> p
                 allParameters.put("as_user_id", Arrays.asList(masqueradeAs));
             } else if(CanvasConstants.MASQUERADE_SIS_USER.equals(masqueradeType)) {
                 allParameters.put("as_user_id", Arrays.asList("sis_user_id:" + masqueradeAs));
+            } else if(CanvasConstants.MASQUERADE_LTI_USER.equals(masqueradeType)) {
+                allParameters.put("as_user_id", Arrays.asList("lti_1_3_id:" + masqueradeAs));
             }
             //Since masquerading options are added on a per-call basis, blank them out after using them for this call
             masqueradeAs = null;

src/main/java/edu/ksu/canvas/interfaces/CanvasReader.java

@@ -15,5 +15,7 @@ public interface CanvasReader<T, READERTYPE extends CanvasReader> {
     READERTYPE readAsCanvasUser(String masqueradeAs);
 
     READERTYPE readAsSisUser(String masqueradeAs);
+
+    READERTYPE readAsLtiUser(String masqueradeAs);
 
 }

src/main/java/edu/ksu/canvas/interfaces/CanvasWriter.java

@@ -5,5 +5,7 @@ public interface CanvasWriter<T, WRITERTYPE extends CanvasWriter>  {
     WRITERTYPE writeAsCanvasUser(String masqueradeAs);
 
     WRITERTYPE writeAsSisUser(String masqueradeAs);
+
+    WRITERTYPE writeAsLtiUser(String masqueradeAs);
 
 }

src/test/java/edu/ksu/canvas/tests/course/UserManagerUTest.java

@@ -70,5 +70,18 @@ public void testCanvasUserMasqueradeCreateUser() throws IOException {
         Assert.assertEquals("somestring4",response.get().getName());
         Assert.assertNotNull(response.get().getId());
     }
+    @Test
+    public void testLtiUserMasqueradeCreateUser() throws IOException {
+        User user = new User();
+        String userId = "899123456";
+        user.setName("somestring4");
+        user.setLoginId("somestring4");
+        String url = baseUrl + "/api/v1/accounts/1/users?as_user_id=" + CanvasConstants.MASQUERADE_LTI_USER + ":" + userId;
+        fakeRestClient.addSuccessResponse(url, "SampleJson/CreateUserResponse.json");
+        Optional<User> response = userWriter.writeAsLtiUser(userId).createUser(user);
+        System.out.println(response.toString());
+        Assert.assertEquals("somestring4",response.get().getName());
+        Assert.assertNotNull(response.get().getId());
+    }
 }
 

src/test/java/edu/ksu/canvas/tests/user/UserRetrieverUTest.java

@@ -7,7 +7,6 @@
 import edu.ksu.canvas.interfaces.UserWriter;
 import edu.ksu.canvas.model.User;
 import edu.ksu.canvas.net.FakeRestClient;
-import edu.ksu.canvas.net.Response;
 import edu.ksu.canvas.requestOptions.GetUsersInAccountOptions;
 import edu.ksu.canvas.requestOptions.GetUsersInCourseOptions;
 import edu.ksu.canvas.util.CanvasURLBuilder;
@@ -38,9 +37,6 @@ public void setupData() {
 
     @Test
     public void testListCourseQuizzes() throws Exception {
-        Response notErroredResponse = new Response();
-        notErroredResponse.setErrorHappened(false);
-        notErroredResponse.setResponseCode(200);
         String url = CanvasURLBuilder.buildCanvasUrl(baseUrl, apiVersion,
                 "courses/" + someCourseId + "/users", Collections.emptyMap());
         fakeRestClient.addSuccessResponse(url, "SampleJson/user/UserList.json");
@@ -54,9 +50,6 @@ public void testListCourseQuizzes() throws Exception {
     @Test
      public void testSisUserMasqueradeListCourseQuizzes() throws Exception {
         String someUserId = "8991123123";
-        Response notErroredResponse = new Response();
-        notErroredResponse.setErrorHappened(false);
-        notErroredResponse.setResponseCode(200);
         String url = baseUrl + "/api/v1/courses/" + someCourseId + "/users?as_user_id="
                 + CanvasConstants.MASQUERADE_SIS_USER + ":" + someUserId;
         fakeRestClient.addSuccessResponse(url, "SampleJson/user/UserList.json");
@@ -70,9 +63,6 @@ public void testSisUserMasqueradeListCourseQuizzes() throws Exception {
     @Test
     public void testCanvasUserMasqueradeListCourseQuizzes() throws Exception {
         String someUserId = "8991123123";
-        Response notErroredResponse = new Response();
-        notErroredResponse.setErrorHappened(false);
-        notErroredResponse.setResponseCode(200);
         String url = baseUrl + "/api/v1/courses/" + someCourseId + "/users?as_user_id=" + someUserId;
         fakeRestClient.addSuccessResponse(url, "SampleJson/user/UserList.json");
 
@@ -82,6 +72,18 @@ public void testCanvasUserMasqueradeListCourseQuizzes() throws Exception {
         Assert.assertTrue(users.stream().map(User::getName).filter("Student Number 2"::equals).findFirst().isPresent());
     }
 
+    @Test
+    public void testLtiUserMasqueradeListCourseQuizzes() throws Exception {
+        String someUserId = "8991123123";
+        String url = baseUrl + "/api/v1/courses/" + someCourseId + "/users?as_user_id=" + CanvasConstants.MASQUERADE_LTI_USER + ":" + someUserId;
+        fakeRestClient.addSuccessResponse(url, "SampleJson/user/UserList.json");
+
+        List<User> users = userReader.readAsLtiUser(someUserId).getUsersInCourse(new GetUsersInCourseOptions(someCourseId));
+        Assert.assertEquals(2, users.size());
+        Assert.assertTrue(users.stream().map(User::getName).filter("Student Number 1"::equals).findFirst().isPresent());
+        Assert.assertTrue(users.stream().map(User::getName).filter("Student Number 2"::equals).findFirst().isPresent());
+    }
+
     @Test
     public void testShowUserDetailsByUserId() throws Exception {
         int userId = 20;