Handle the indexerror exception on create_order

LMS-2646

lms/djangoapps/verify_student/tests/test_views.py

@@ -31,6 +31,7 @@ from opaque_keys.edx.locations import SlashSeparatedCourseKey
 from student.tests.factories import UserFactory
 from student.models import CourseEnrollment
 from course_modes.tests.factories import CourseModeFactory
+from courseware.tests.tests import TEST_DATA_MONGO_MODULESTORE
 from course_modes.models import CourseMode
 from verify_student.views import render_to_response
 from verify_student.models import SoftwareSecurePhotoVerification
@@ -65,6 +66,97 @@ class StartView(TestCase):
         self.assertHttpForbidden(self.client.get(self.start_url()))
 
 
+@override_settings(MODULESTORE=TEST_DATA_MONGO_MODULESTORE)
+class TestCreateOrderView(TestCase):
+    """
+    Tests for the create_order view of verified course registration process
+    """
+    def setUp(self):
+        self.user = UserFactory.create(username="rusty", password="test")
+        self.client.login(username="rusty", password="test")
+        self.course_id = 'Robot/999/Test_Course'
+        CourseFactory.create(org='Robot', number='999', display_name='Test Course')
+        verified_mode = CourseMode(
+            course_id=SlashSeparatedCourseKey("Robot", "999", 'Test_Course'),
+            mode_slug="verified",
+            mode_display_name="Verified Certificate",
+            min_price=50
+        )
+        verified_mode.save()
+        course_mode_post_data = {
+            'certificate_mode': 'Select Certificate',
+            'contribution': 50,
+            'contribution-other-amt': '',
+            'explain': ''
+        }
+        self.client.post(
+            reverse("course_modes_choose", kwargs={'course_id': self.course_id}),
+            course_mode_post_data
+        )
+
+    def test_invalid_photos_data(self):
+        """
+        Test that the invalid photo data cannot be submitted
+        """
+        create_order_post_data = {
+            'contribution': 50,
+            'course_id': self.course_id,
+            'face_image': '',
+            'photo_id_image': ''
+        }
+        response = self.client.post(reverse('verify_student_create_order'), create_order_post_data)
+        json_response = json.loads(response.content)
+        self.assertFalse(json_response.get('success'))
+
+    @patch.dict(settings.FEATURES, {'AUTOMATIC_VERIFY_STUDENT_IDENTITY_FOR_TESTING': True})
+    def test_invalid_amount(self):
+        """
+        Test that the user cannot give invalid amount
+        """
+        create_order_post_data = {
+            'contribution': '1.a',
+            'course_id': self.course_id,
+            'face_image': ',',
+            'photo_id_image': ','
+        }
+        response = self.client.post(reverse('verify_student_create_order'), create_order_post_data)
+        self.assertEquals(response.status_code, 400)
+        self.assertIn('Selected price is not valid number.', response.content)
+
+    @patch.dict(settings.FEATURES, {'AUTOMATIC_VERIFY_STUDENT_IDENTITY_FOR_TESTING': True})
+    def test_invalid_mode(self):
+        """
+        Test that the course without verified mode cannot be processed
+        """
+        course_id = 'Fake/999/Test_Course'
+        CourseFactory.create(org='Fake', number='999', display_name='Test Course')
+        create_order_post_data = {
+            'contribution': '50',
+            'course_id': course_id,
+            'face_image': ',',
+            'photo_id_image': ','
+        }
+        response = self.client.post(reverse('verify_student_create_order'), create_order_post_data)
+        self.assertEquals(response.status_code, 400)
+        self.assertIn('This course doesn\'t support verified certificates', response.content)
+
+    @patch.dict(settings.FEATURES, {'AUTOMATIC_VERIFY_STUDENT_IDENTITY_FOR_TESTING': True})
+    def test_create_order_success(self):
+        """
+        Test that the order is created successfully when given valid data
+        """
+        create_order_post_data = {
+            'contribution': 50,
+            'course_id': self.course_id,
+            'face_image': ',',
+            'photo_id_image': ','
+        }
+        response = self.client.post(reverse('verify_student_create_order'), create_order_post_data)
+        json_response = json.loads(response.content)
+        self.assertTrue(json_response.get('success'))
+        self.assertIsNotNone(json_response.get('orderNumber'))
+
+
 @override_settings(MODULESTORE=MODULESTORE_CONFIG)
 class TestVerifyView(ModuleStoreTestCase):
     def setUp(self):

lms/djangoapps/verify_student/views.py

@@ -38,6 +38,8 @@ from opaque_keys.edx.locations import SlashSeparatedCourseKey
 from .exceptions import WindowExpiredException
 from xmodule.modulestore.django import modulestore
 
+from util.json_request import JsonResponse
+
 log = logging.getLogger(__name__)
 
 EVENT_NAME_USER_ENTERED_MIDCOURSE_REVERIFY_VIEW = 'edx.course.enrollment.reverify.started'
@@ -114,6 +116,7 @@ class VerifyView(View):
 
             # TODO (ECOM-16): Remove once the AB test completes
             "autoreg": request.session.get('auto_register', False),
+            "retake": request.GET.get('retake', False),
         }
 
         return render_to_response('verify_student/photo_verification.html', context)
@@ -177,9 +180,14 @@ def create_order(request):
     """
     if not SoftwareSecurePhotoVerification.user_has_valid_or_pending(request.user):
         attempt = SoftwareSecurePhotoVerification(user=request.user)
-        b64_face_image = request.POST['face_image'].split(",")[1]
-        b64_photo_id_image = request.POST['photo_id_image'].split(",")[1]
-
+        try:
+            b64_face_image = request.POST['face_image'].split(",")[1]
+            b64_photo_id_image = request.POST['photo_id_image'].split(",")[1]
+        except IndexError:
+            context = {
+                'success': False,
+            }
+            return JsonResponse(context)
         attempt.upload_face_image(b64_face_image.decode('base64'))
         attempt.upload_photo_id_image(b64_photo_id_image.decode('base64'))
         attempt.mark_ready()
@@ -203,13 +211,13 @@ def create_order(request):
     # prefer professional mode over verified_mode
     current_mode = CourseMode.verified_mode_for_course(course_id)
 
-    if current_mode.slug == 'professional':
-        amount = current_mode.min_price
-
     # make sure this course has a verified mode
     if not current_mode:
         return HttpResponseBadRequest(_("This course doesn't support verified certificates"))
 
+    if current_mode.slug == 'professional':
+        amount = current_mode.min_price
+
     if amount < current_mode.min_price:
         return HttpResponseBadRequest(_("No selected price or selected price is below minimum."))
 
@@ -225,7 +233,7 @@ def create_order(request):
     params = get_signed_purchase_params(
         cart, callback_url=callback_url
     )
-
+    params['success'] = True
     return HttpResponse(json.dumps(params), content_type="text/json")
 
 
@@ -484,8 +492,7 @@ def midcourse_reverify_dash(request):
         try:
             course_enrollment_pairs.append((modulestore().get_course(enrollment.course_id), enrollment))
         except ItemNotFoundError:
-            log.error("User {0} enrolled in non-existent course {1}"
-                      .format(user.username, enrollment.course_id))
+            log.error("User {0} enrolled in non-existent course {1}".format(user.username, enrollment.course_id))
 
     statuses = ["approved", "pending", "must_reverify", "denied"]
 

lms/static/js/spec/photocapture_spec.js

+describe("Photo Verification", function() {
+
+  beforeEach(function() {
+      setFixtures('<div id="order-error" style="display: none;"></div><input type="radio" name="contribution" value="35" id="contribution-35" checked="checked"><input type="radio" id="contribution-other" name="contribution" value=""><input type="text" size="9" name="contribution-other-amt" id="contribution-other-amt" value="30"><img id="face_image" src="src="data:image/png;base64,dummy"><img id="photo_id_image" src="src="data:image/png;base64,dummy">');
+  });
+
+  it('retake photo', function() {
+    spyOn(window,"refereshPageMessage").andCallFake(function(){
+      return
+    })
+    spyOn($, "ajax").andCallFake(function(e) {
+      e.success({"success":false});
+    });
+    submitToPaymentProcessing();
+    expect(window.refereshPageMessage).toHaveBeenCalled();
+  });
+
+  it('successful submission', function() {
+    spyOn(window,"submitForm").andCallFake(function(){
+      return
+    })
+    spyOn($, "ajax").andCallFake(function(e) {
+      e.success({"success":true});
+    });
+    submitToPaymentProcessing();
+    expect(window.submitForm).toHaveBeenCalled();
+  });
+
+  it('Error during process', function() {
+    spyOn(window,"showSubmissionError").andCallFake(function(){
+      return
+    })
+    spyOn($, "ajax").andCallFake(function(e) {
+      e.error({});
+    });
+    submitToPaymentProcessing();
+    expect(window.showSubmissionError).toHaveBeenCalled();
+  });
+
+});

lms/static/js/verify_student/photocapture.js

@@ -44,6 +44,30 @@ var submitMidcourseReverificationPhotos = function() {
   $("#reverify_form").submit();
 }
 
+function showSubmissionError() {
+    if (xhr.status == 400) {
+        $('#order-error .copy p').html(xhr.responseText);
+    }
+    $('#order-error').show();
+    $("html, body").animate({ scrollTop: 0 });
+}
+
+function submitForm(data) {
+    for (prop in data) {
+    $('<input>').attr({
+        type: 'hidden',
+        name: prop,
+        value: data[prop]
+    }).appendTo('#pay_form');
+    }
+    $("#pay_form").submit();
+}
+
+function refereshPageMessage() {
+    $('#photo-error').show();
+    $("html, body").animate({ scrollTop: 0 });
+}
+
 var submitToPaymentProcessing = function() {
   var contribution_input = $("input[name='contribution']:checked")
   var contribution = 0;
@@ -54,33 +78,25 @@ var submitToPaymentProcessing = function() {
       contribution = contribution_input.val();
   }
   var course_id = $("input[name='course_id']").val();
-  var xhr = $.post(
-    "/verify_student/create_order",
-    {
+  $.ajax({
+    url: "/verify_student/create_order",
+    type: 'POST',
+    data: {
       "course_id" : course_id,
       "contribution": contribution,
       "face_image" : $("#face_image")[0].src,
       "photo_id_image" : $("#photo_id_image")[0].src
     },
-    function(data) {
-      for (prop in data) {
-        $('<input>').attr({
-            type: 'hidden',
-            name: prop,
-            value: data[prop]
-        }).appendTo('#pay_form');
+    success:function(data) {
+      if (data.success) {
+        submitForm(data);
+      } else {
+        refereshPageMessage();
       }
+    },
+    error:function(xhr,status,error) {
+      showSubmissionError()
     }
-  )
-  .done(function(data) {
-    $("#pay_form").submit();
-  })
-  .fail(function(jqXhr,text_status, error_thrown) {
-      if(jqXhr.status == 400) {
-          $('#order-error .copy p').html(jqXhr.responseText);
-      }
-      $('#order-error').show();
-      $("html, body").animate({ scrollTop: 0 });
   });
 }
 
@@ -298,6 +314,7 @@ $(document).ready(function() {
   // when moving between steps
   $('#face_next_link').click(function(){
       analytics.pageview("Capture ID Photo");
+      $('#photo-error').hide();
       $('body').addClass('step-photos-id').removeClass('step-photos-cam')
   })
 

lms/templates/verify_student/photo_verification.html

 <%! from django.utils.translation import ugettext as _ %>
 <%! from django.core.urlresolvers import reverse %>
-
+<%! from lms.envs.common import TECH_SUPPORT_EMAIL %>
 <%inherit file="../main.html" />
 <%namespace name='static' file='/static_content.html'/>
 
@@ -57,6 +57,25 @@
   </div>
 </div>
 
+<div id="photo-error" style="display: none;" class="wrapper-msg wrapper-msg-activate">
+  <div class=" msg msg-activate">
+    <i class="msg-icon icon-warning-sign"></i>
+    <div class="msg-content">
+      <h3 class="title">${_("Error processing your order")}</h3>
+      <div class="copy">
+        <p>${_("We're sorry, there has been an error on this page. Please refresh the page and retake your photos. "
+               "If you are still having trouble, please contact us at "
+               "{email_address}").format(
+                    email_address='<a href="mailto:{technical_email}">{technical_email}</a>'.format(
+                        technical_email=TECH_SUPPORT_EMAIL
+                    )
+               )}
+        </p>
+      </div>
+    </div>
+  </div>
+</div>
+
 <div class="container">
   <section class="wrapper">