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This commit is contained in:
Markos Gogoulos
2025-12-29 19:21:26 +02:00
parent 5572a67019
commit 9e7a8afdda
1 changed files with 36 additions and 1 deletions
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37
lti/deep_linking.py
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@@ -69,16 +69,25 @@ class SelectMediaView(View):
def post(self, request):
"""Return selected media as deep linking content items"""
print("=" * 80)
print("DEEP LINKING - MEDIA SELECTION SUBMITTED")
print("=" * 80)
# Get deep link session data
deep_link_data = request.session.get('lti_deep_link')
if not deep_link_data:
print("ERROR: No deep link session data found")
return JsonResponse({'error': 'Invalid session'}, status=400)
print(f"Deep link data: {deep_link_data}")
# Get selected media IDs
selected_ids = request.POST.getlist('media_ids[]')
print(f"Selected media IDs: {selected_ids}")
if not selected_ids:
print("ERROR: No media selected")
return JsonResponse({'error': 'No media selected'}, status=400)
# Build content items
@@ -113,12 +122,18 @@ class SelectMediaView(View):
continue
if not content_items:
print("ERROR: No valid media found after processing")
return JsonResponse({'error': 'No valid media found'}, status=400)
print(f"Built {len(content_items)} content items")
# Create deep linking JWT response
# Note: This is a simplified version
# Full implementation would use PyLTI1p3's DeepLink response builder
print("Creating deep linking JWT...")
jwt_response = self.create_deep_link_jwt(deep_link_data, content_items, request)
print(f"JWT created successfully (length: {len(jwt_response)})")
print(f"JWT (first 100 chars): {jwt_response[:100]}...")
# Return auto-submit form that posts JWT back to Moodle
context = {
@@ -126,6 +141,7 @@ class SelectMediaView(View):
'jwt': jwt_response,
}
print(f"Returning to Moodle at: {deep_link_data['deep_link_return_url']}")
return render(request, 'lti/deep_link_return.html', context)
def create_deep_link_jwt(self, deep_link_data, content_items, request):
@@ -133,13 +149,23 @@ class SelectMediaView(View):
Create JWT response for deep linking - manual implementation
"""
try:
print("=" * 80)
print("CREATING DEEP LINKING JWT")
print("=" * 80)
platform_id = deep_link_data['platform_id']
platform = LTIPlatform.objects.get(id=platform_id)
deployment_id = deep_link_data['deployment_id']
message_launch_data = deep_link_data['message_launch_data']
print(f"Platform: {platform.name}")
print(f"Platform ID: {platform.platform_id}")
print(f"Client ID: {platform.client_id}")
print(f"Deployment ID: {deployment_id}")
# Get deep linking settings from original launch data
deep_linking_settings = message_launch_data.get('https://purl.imsglobal.org/spec/lti-dl/claim/deep_linking_settings', {})
print(f"Deep linking settings: {deep_linking_settings}")
# Get tool's private key for signing
key_obj = LTIToolKeys.get_or_create_keys()
@@ -171,8 +197,9 @@ class SelectMediaView(View):
lti_content_items.append(lti_item)
# Create JWT payload
tool_issuer = request.build_absolute_uri('/')[:-1]
payload = {
'iss': request.build_absolute_uri('/')[:-1], # Tool's issuer (MediaCMS URL)
'iss': tool_issuer, # Tool's issuer (MediaCMS URL)
'aud': [platform.client_id],
'exp': now + 3600,
'iat': now,
@@ -184,9 +211,17 @@ class SelectMediaView(View):
'https://purl.imsglobal.org/spec/lti-dl/claim/data': deep_linking_settings.get('data', ''),
}
print("JWT Payload:")
print(f" iss (issuer): {tool_issuer}")
print(f" aud (audience): {platform.client_id}")
print(f" deployment_id: {deployment_id}")
print(f" content_items count: {len(lti_content_items)}")
# Sign JWT with tool's private key
kid = key_obj.private_key_jwk['kid']
print(f"Signing JWT with kid: {kid}")
response_jwt = jwt.encode(payload, private_key, algorithm='RS256', headers={'kid': kid})
print("JWT signed successfully")
return response_jwt