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Markos Gogoulos
2026-01-30 13:01:21 +02:00
parent e5be39f392
commit 23ee0dc7cc
2 changed files with 43 additions and 0 deletions
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36
lti/views.py
View File

@@ -83,6 +83,7 @@ class OIDCLoginView(View):
login_hint = request.GET.get('login_hint') or request.POST.get('login_hint')
lti_message_hint = request.GET.get('lti_message_hint') or request.POST.get('lti_message_hint')
cmid = request.GET.get('cmid') or request.POST.get('cmid')
media_token = request.GET.get('media_token') or request.POST.get('media_token')
if not all([target_link_uri, iss, client_id]):
return JsonResponse({'error': 'Missing required OIDC parameters'}, status=400)
@@ -117,6 +118,8 @@ class OIDCLoginView(View):
state_data = {'uuid': state_uuid}
if lti_message_hint:
state_data['hint'] = lti_message_hint
if media_token:
state_data['media_token'] = media_token
# Encode as base64 URL-safe string
state = base64.urlsafe_b64encode(json_module.dumps(state_data).encode()).decode().rstrip('=')
@@ -159,6 +162,8 @@ class OIDCLoginView(View):
# Debug logging for filter launches
logger.error(f"[OIDC LOGIN DEBUG] Redirecting to: {redirect_url}")
logger.error(f"[OIDC LOGIN DEBUG] Has lti_message_hint: {bool(lti_message_hint)}")
logger.error(f"[OIDC LOGIN DEBUG] Has media_token: {bool(media_token)}")
logger.error(f"[OIDC LOGIN DEBUG] media_token value: {media_token}")
logger.error(f"[OIDC LOGIN DEBUG] cmid: {cmid}")
return HttpResponseRedirect(redirect_url)
@@ -191,6 +196,29 @@ class LaunchView(View):
logger.error("[LTI LAUNCH DEBUG] Launch view POST called")
# Extract media_token from state parameter if present (for filter launches)
media_token_from_state = None
state = request.POST.get('state')
if state:
try:
import base64
import json as json_module
# Add padding if needed for base64 decode
padding = 4 - (len(state) % 4)
if padding and padding != 4:
state_padded = state + ('=' * padding)
else:
state_padded = state
state_decoded = base64.urlsafe_b64decode(state_padded.encode()).decode()
state_data = json_module.loads(state_decoded)
media_token_from_state = state_data.get('media_token')
if media_token_from_state:
logger.error(f"[LTI LAUNCH DEBUG] Extracted media_token from state: {media_token_from_state}")
except Exception as e:
logger.error(f"[LTI LAUNCH DEBUG] Could not decode state for media_token (might be plain UUID): {e}")
try:
id_token = request.POST.get('id_token')
if not id_token:
@@ -231,6 +259,14 @@ class LaunchView(View):
logger.error(f"[LTI LAUNCH DEBUG] Custom claims keys: {list(custom_claims.keys()) if isinstance(custom_claims, dict) else 'not a dict'}")
logger.error(f"[LTI LAUNCH DEBUG] Custom claims full content: {custom_claims}")
logger.error(f"[LTI LAUNCH DEBUG] Has media_friendly_token: {bool(custom_claims.get('media_friendly_token'))}")
# Inject media_token from state if present (for filter launches)
if media_token_from_state and not custom_claims.get('media_friendly_token'):
custom_claims['media_friendly_token'] = media_token_from_state
# Update launch_data with the modified custom claims
launch_data['https://purl.imsglobal.org/spec/lti/claim/custom'] = custom_claims
logger.error(f"[LTI LAUNCH DEBUG] Injected media_friendly_token from state: {media_token_from_state}")
except Exception as e:
logger.error(f"[LTI LAUNCH DEBUG] Error getting custom claims: {e}")
custom_claims = {}