feat: add filter to hook render of XBlock

lms/djangoapps/courseware/views/views.py

@@ -33,10 +33,11 @@
 from django.views.generic import View
 from edx_django_utils.monitoring import set_custom_attribute, set_custom_attributes_for_course_key
 from ipware.ip import get_client_ip
+from lms.djangoapps.static_template_view.views import render_500
 from markupsafe import escape
 from opaque_keys import InvalidKeyError
 from opaque_keys.edx.keys import CourseKey, UsageKey
-from openedx_filters.learning.filters import CourseAboutRenderStarted
+from openedx_filters.learning.filters import CourseAboutRenderStarted, RenderXBlockStarted
 from requests.exceptions import ConnectionError, Timeout  # pylint: disable=redefined-builtin
 from pytz import UTC
 from rest_framework import status
@@ -1669,7 +1670,18 @@ def render_xblock(request, usage_key_string, check_if_enrolled=True, disable_sta
 
             **optimization_flags,
         }
-        return render_to_response('courseware/courseware-chromeless.html', context)
+
+        try:
+            # .. filter_implemented_name: RenderXBlockStarted
+            # .. filter_type: org.openedx.learning.xblock.render.started.v1
+            context, student_view_context = RenderXBlockStarted.run_filter(
+                context=context, student_view_context=student_view_context
+            )
+        except RenderXBlockStarted.PreventXBlockBlockRender as exc:
+            log.info("Skipping rendering block %s. Reason: %s", usage_key_string, exc.message)
+            return render_500()
+
+        return render_to_response('courseware/courseware-chromeless.html', context, request=request)
 
 
 def get_optimization_flags_for_content(block, fragment):