✨(xapi) add ralph-malph library for statements generation

Finally, we have integrated Ralph in marsha to help generate xAPI statements
with Pydantic! However the integration is partial as statements are initialized
from the frontend.

CHANGELOG.md

@@ -10,6 +10,7 @@ Versioning](https://semver.org/spec/v2.0.0.html).
 
 ### Added
 
+- Integrate `ralph-malph` library for xAPI statements generation
 - Add scaleway storage configuration
 - Add Peertube pipeline to VOD
 - Celery task queue

src/backend/marsha/core/api/xapi.py

@@ -17,6 +17,7 @@
 from marsha.core import permissions, serializers
 from marsha.core.api.base import APIViewMixin
 from marsha.core.defaults import XAPI_STATEMENT_ID_CACHE
+from marsha.core.lti import LTI
 from marsha.core.xapi import XAPI, get_xapi_statement
 
 
@@ -41,10 +42,12 @@ def _statement_from_lti(
         xapi_logger = logging.getLogger(f"xapi.{consumer_site.domain}")
 
         # xapi statement enriched with video and jwt_token information
+        lti = LTI(request, object_instance)
         xapi_statement = statement_class.from_lti(
             object_instance,
             partial_xapi_statement.validated_data,
             request.resource.token,
+            lti.origin_url
         )
 
         # Log the statement in the xapi logger

src/backend/marsha/core/lti/__init__.py

@@ -33,7 +33,7 @@ def __init__(self, request, resource_id=None):
         request : django.http.request.HttpRequest
             The request that holds the LTI parameters
         resource_id : uuid.uuid4
-            The primary key of the video targetted by the LTI query as a UUID.
+            The primary key of the video targeted by the LTI query as a UUID.
 
         """
         self.resource_id = resource_id

src/backend/marsha/core/tests/api/xapi/document/test_from_website.py

@@ -24,6 +24,7 @@ def test_xapi_statement_document_resource(self):
 
         session_id = str(uuid.uuid4())
         jwt_token = UserAccessTokenFactory()
+        print(jwt_token.__dict__)
 
         data = {
             "verb": {

src/backend/marsha/core/tests/api/xapi/video/test_from_website.py

@@ -12,7 +12,7 @@
 from logging_ldp.formatters import LDPGELFFormatter
 
 from marsha.core.defaults import XAPI_STATEMENT_ID_CACHE
-from marsha.core.factories import VideoFactory
+from marsha.core.factories import VideoFactory, UserFactory
 from marsha.core.simple_jwt.factories import UserAccessTokenFactory
 
 
@@ -199,7 +199,8 @@ def test_xapi_statement_with_two_same_event(self):
         """
         video = VideoFactory()
         jwt_token = UserAccessTokenFactory()
-
+        user=UserFactory(username="johndoe")
+        print(user)
         data = {
             "id": "7b18195e-e183-4bbf-b8ef-5145ef64ae19",
             "verb": {