✨(backend) add shared note retrieve api endpoint

retrieve shared notes by recreating access link

CHANGELOG.md

@@ -10,6 +10,10 @@ Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [4.0.0-beta.20] - 2023-04-20
 
+### Added
+
+- Add a widget to download the available shared notes on the classroom dashboard
+
 ### Fixed
 
 - downgrade python social auth to version 4.3.0 (#2197)

env.d/development.dist

@@ -31,6 +31,7 @@ [email protected]
 # BBB server credentials
 DJANGO_BBB_ENABLED=False
 DJANGO_BBB_API_ENDPOINT=https://example.com/bbb/api
+DJANGO_BBB_SHARED_NOTES_RETRIEVE_LINK=https://example.com/bbb
 DJANGO_BBB_API_SECRET=BbbSecret
 # BBB callback through scalelite may use a different secret to sign the sent token
 DJANGO_BBB_API_CALLBACK_SECRET=BbbOtherSecret

src/backend/marsha/bbb/admin.py

@@ -5,7 +5,7 @@
 
 from marsha.core.admin import link_field
 
-from .models import Classroom, ClassroomDocument
+from .models import Classroom, ClassroomDocument, ClassroomSharedNote
 
 
 class ClassroomDocumentInline(admin.TabularInline):
@@ -93,3 +93,12 @@ class ClassroomDocumentAdmin(admin.ModelAdmin):
         "classroom__playlist__organization__name",
         "filename",
     )
+
+
+@admin.register(ClassroomSharedNote)
+class ClassroomSharedNoteAdmin(admin.ModelAdmin):
+    """Admin class for the ClassroomSharedNote model"""
+
+    verbose_name = _("Classroom shared note")
+    list_display = ("id", link_field("classroom"), "updated_on")
+    readonly_fields = ["id", "updated_on"]

src/backend/marsha/bbb/api.py

@@ -17,6 +17,7 @@
     create,
     end,
     get_recordings,
+    get_session_shared_note,
     join,
     process_recordings,
 )
@@ -365,6 +366,7 @@ def service_end(self, request, *args, **kwargs):
         Type[rest_framework.response.Response]
             HttpResponse with the serialized classroom.
         """
+        get_session_shared_note(classroom=self.get_object())
         try:
             response = end(classroom=self.get_object())
             status = 200

src/backend/marsha/bbb/migrations/0014_classroomsharednote.py

@@ -0,0 +1,83 @@
+# Generated by Django 4.1.7 on 2023-04-20 15:49
+
+import uuid
+
+from django.db import migrations, models
+import django.db.models.deletion
+import django.utils.timezone
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("bbb", "0013_classroom_tools_parameters"),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name="ClassroomSharedNote",
+            fields=[
+                (
+                    "deleted",
+                    models.DateTimeField(db_index=True, editable=False, null=True),
+                ),
+                (
+                    "deleted_by_cascade",
+                    models.BooleanField(default=False, editable=False),
+                ),
+                (
+                    "id",
+                    models.UUIDField(
+                        default=uuid.uuid4,
+                        editable=False,
+                        help_text="primary key for the shared note as UUID",
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="id",
+                    ),
+                ),
+                (
+                    "created_on",
+                    models.DateTimeField(
+                        default=django.utils.timezone.now,
+                        editable=False,
+                        help_text="date and time at which a shared note was created",
+                        verbose_name="created on",
+                    ),
+                ),
+                (
+                    "updated_on",
+                    models.DateTimeField(
+                        auto_now=True,
+                        help_text="date and time at which a shared note was last updated",
+                        verbose_name="updated on",
+                    ),
+                ),
+                (
+                    "shared_note_url",
+                    models.CharField(
+                        blank=True,
+                        help_text="url of the classroom shared note",
+                        max_length=255,
+                        null=True,
+                        verbose_name="shared note url",
+                    ),
+                ),
+                (
+                    "classroom",
+                    models.ForeignKey(
+                        help_text="classroom to which this shared note belongs",
+                        on_delete=django.db.models.deletion.PROTECT,
+                        related_name="shared notes",
+                        to="bbb.classroom",
+                        verbose_name="classroom shared note",
+                    ),
+                ),
+            ],
+            options={
+                "verbose_name": "Classroom shared note",
+                "verbose_name_plural": "Classroom shared notes",
+                "db_table": "classroom_shared_note",
+                "ordering": ["-updated_on"],
+            },
+        ),
+    ]

src/backend/marsha/bbb/models.py

@@ -285,3 +285,32 @@ class Meta:
         ordering = ["-created_on"]
         verbose_name = _("Classroom recording")
         verbose_name_plural = _("Classroom recordings")
+
+
+class ClassroomSharedNote(BaseModel):
+    """Model representing a shared note in a classroom."""
+
+    classroom = models.ForeignKey(
+        to=Classroom,
+        related_name="shared_notes",
+        verbose_name=_("classroom shared notes"),
+        help_text=_("classroom to which this shared note belongs"),
+        # don't allow hard deleting a classroom if it still contains a recording
+        on_delete=models.PROTECT,
+    )
+
+    shared_note_url = models.CharField(
+        max_length=255,
+        verbose_name=_("shared note url"),
+        help_text=_("url of the classroom shared note"),
+        null=True,
+        blank=True,
+    )
+
+    class Meta:
+        """Options for the ``ClassroomSharedNote`` model."""
+
+        db_table = "classroom_shared_note"
+        ordering = ["-updated_on"]
+        verbose_name = _("Classroom shared note")
+        verbose_name_plural = _("Classroom shared notes")

src/backend/marsha/bbb/serializers.py

@@ -12,7 +12,12 @@
 
 from rest_framework import serializers
 
-from marsha.bbb.models import Classroom, ClassroomDocument, ClassroomRecording
+from marsha.bbb.models import (
+    Classroom,
+    ClassroomDocument,
+    ClassroomRecording,
+    ClassroomSharedNote,
+)
 from marsha.bbb.utils.bbb_utils import (
     ApiMeetingException,
     get_meeting_infos,
@@ -54,6 +59,30 @@ class Meta:  # noqa
     )
 
 
+class ClassroomSharedNoteSerializer(ReadOnlyModelSerializer):
+    """A serializer to display a ClassroomRecording resource."""
+
+    class Meta:  # noqa
+        model = ClassroomSharedNote
+        fields = (
+            "id",
+            "classroom",
+            "shared_note_url",
+            "updated_on",
+        )
+        read_only_fields = (
+            "id",
+            "classroom",
+            "shared_note_url",
+            "updated_on",
+        )
+
+    # Make sure classroom UUID is converted to a string during serialization
+    classroom = serializers.PrimaryKeyRelatedField(
+        read_only=True, pk_field=serializers.CharField()
+    )
+
+
 class ClassroomSerializer(serializers.ModelSerializer):
     """A serializer to display a Classroom resource."""
 
@@ -72,6 +101,7 @@ class Meta:  # noqa
             "starting_at",
             "estimated_duration",
             "recordings",
+            "shared_notes",
             # specific generated fields
             "infos",
             "invite_token",
@@ -100,6 +130,7 @@ class Meta:  # noqa
     invite_token = serializers.SerializerMethodField()
     instructor_token = serializers.SerializerMethodField()
     recordings = serializers.SerializerMethodField()
+    shared_notes = serializers.SerializerMethodField()
 
     def get_infos(self, obj):
         """Meeting infos from BBB server."""
@@ -137,6 +168,17 @@ def get_recordings(self, obj):
             ).data
         return []
 
+    def get_shared_notes(self, obj):
+        """Get the shared notes for the classroom.
+
+        Only available for admins.
+        """
+        if self.context.get("is_admin", True):
+            return ClassroomSharedNoteSerializer(
+                obj.shared_notes.all(), many=True, context=self.context
+            ).data
+        return []
+
     def update(self, instance, validated_data):
         if any(
             attribute in validated_data

src/backend/marsha/bbb/tests/bbb_utils/test_get_session_shared_note.py

@@ -0,0 +1,106 @@
+"""Tests for the get_recordings service in the ``bbb`` app of the Marsha project."""
+from django.test import TestCase, override_settings
+
+import responses
+
+from marsha.bbb.factories import ClassroomFactory, ClassroomRecordingFactory
+from marsha.bbb.utils.bbb_utils import get_session_shared_note
+from marsha.core.tests.testing_utils import reload_urlconf
+
+
+@override_settings(
+    BBB_SHARED_NOTES_RETRIEVE_LINK="https://10.7.7.1/bigbluebutton/sharednotes"
+)
+@override_settings(BBB_API_ENDPOINT="https://10.7.7.1/bigbluebutton/api")
+@override_settings(BBB_API_SECRET="SuperSecret")
+@override_settings(BBB_ENABLED=True)
+class ClassroomServiceTestCase(TestCase):
+    """Test our intentions about the Classroom get_recordings service."""
+
+    maxDiff = None
+
+    @classmethod
+    def setUpClass(cls):
+        super().setUpClass()
+
+        # Force URLs reload to use BBB_ENABLED
+        reload_urlconf()
+
+    @responses.activate
+    def test_get_shared_notes(self):
+        """Validate response when multiple recordings exists."""
+        classroom = ClassroomFactory(
+            meeting_id="881e8986-9673-11ed-a1eb-0242ac120002", started=True
+        )
+
+        responses.add(
+            responses.GET,
+            "https://10.7.7.1/bigbluebutton/api/getMeetingInfo",
+            match=[
+                responses.matchers.query_param_matcher(
+                    {
+                        "meetingID": "7a567d67-29d3-4547-96f3-035733a4dfaa",
+                        "checksum": "7f13332ec54e7df0a02d07904746cb5b8b330498",
+                    }
+                )
+            ],
+            body="""
+            <response>
+                <returncode>SUCCESS</returncode>
+                <meetingName>random-6256545</meetingName>
+                <meetingID>random-6256545</meetingID>
+                <internalMeetingID>ab0da0b4a1f283e94cfefdf32dd761eebd5461ce-1635514947533</internalMeetingID>
+                <createTime>1635514947533</createTime>
+                <createDate>Fri Oct 29 13:42:27 UTC 2021</createDate>
+                <voiceBridge>77581</voiceBridge>
+                <dialNumber>613-555-1234</dialNumber>
+                <attendeePW>trac</attendeePW>
+                <moderatorPW>trusti</moderatorPW>
+                <running>true</running>
+                <duration>0</duration>
+                <hasUserJoined>true</hasUserJoined>
+                <recording>false</recording>
+                <hasBeenForciblyEnded>false</hasBeenForciblyEnded>
+                <startTime>1635514947596</startTime>
+                <endTime>0</endTime>
+                <participantCount>1</participantCount>
+                <listenerCount>0</listenerCount>
+                <voiceParticipantCount>0</voiceParticipantCount>
+                <videoCount>0</videoCount>
+                <maxUsers>0</maxUsers>
+                <moderatorCount>0</moderatorCount>
+                <attendees>
+                    <attendee>
+                        <userID>w_2xox6leao03w</userID>
+                        <fullName>User 1907834</fullName>
+                        <role>MODERATOR</role>
+                        <isPresenter>true</isPresenter>
+                        <isListeningOnly>false</isListeningOnly>
+                        <hasJoinedVoice>false</hasJoinedVoice>
+                        <hasVideo>false</hasVideo>
+                        <clientType>HTML5</clientType>
+                    </attendee>
+                    <attendee>
+                        <userID>w_bau7cr7aefju</userID>
+                        <fullName>User 1907834</fullName>
+                        <role>VIEWER</role>
+                        <isPresenter>false</isPresenter>
+                        <isListeningOnly>false</isListeningOnly>
+                        <hasJoinedVoice>false</hasJoinedVoice>
+                        <hasVideo>false</hasVideo>
+                        <clientType>HTML5</clientType>
+                    </attendee>
+                </attendees>
+                <metadata>
+                </metadata>
+                <isBreakout>false</isBreakout>
+            </response>
+           """,
+            status=200,
+        )
+
+        shared_note_object = get_session_shared_note(classroom.meeting_id)
+        assert (
+            shared_note_object.shared_note_url
+            == "https://10.7.7.1/bigbluebutton/sharednotes/ab0da0b4a1f283e94cfefdf32dd761eebd5461ce-1635514947533/notes.html"
+        )