def handle(self, *args, **options):
self._commit = options['commit']
self._courses = {}
self._session = SessionManagement()
self._recorder = RemoteRecorderManagement()
if options['stdin']:
for line in sys.stdin:
self._process_course(line.rstrip('\n'))
else:
for session in args:
self._process_course(session)
def set_panopto_generic_folder(event):
session_api = SessionManagement()
id_string = "%s - %s" % (event['name'], event['space']['id'])
folder_name = event['name']
folder_external_id = panopto_generic_external_id(id_string)
creators = []
folders = session_api.getFoldersList(search_query=event['name'])
if folders and len(folders) == 1:
folder_name = folders[0].Name
folder_external_id = folders[0].ExternalId
creators = get_panopto_folder_creators(folders[0].Id)
event['recording']['folder']['name'] = folder_name
event['recording']['folder']['external_id'] = folder_external_id
event['recording']['folder']['auth'] = {'creators': creators}
def set_panopto_generic_folder(event):
session_api = SessionManagement()
id_string = "%s - %s" % (event['name'], event['space']['id'])
folder_name = event['name']
folder_external_id = panopto_generic_external_id(id_string)
creators = []
folders = session_api.getFoldersList(search_query=event['name'])
if folders and len(folders) == 1:
folder_name = folders[0].Name
folder_external_id = folders[0].ExternalId
creators = get_panopto_folder_creators(folders[0].Id)
event['recording']['folder']['name'] = folder_name
event['recording']['folder']['external_id'] = folder_external_id
event['recording']['folder']['auth'] = { 'creators': creators }
class Folder(RESTDispatch):
def __init__(self):
self._session = SessionManagement()
self._access = AccessManagement()
self._user = UserManagement()
def GET(self, request, **kwargs):
folder_id = kwargs.get('folder_id')
if (folder_id):
return self._get_folder_details(space_id)
else:
params = {}
for q in request.GET:
params[q] = request.GET.get(q)
return self._list_folders(params)
def _get_folder_details(self, space_id):
return self.json_response('{}')
def _list_folders(self, args):
folders = []
if 'search' in args:
search = args['search'].strip()
if len(search) > 3:
for folder in self._session.getFoldersList(search_query=search):
creators = []
viewers = []
deets = self._access.getFolderAccessDetails(folder['Id'])
if deets.UsersWithCreatorAccess:
response = self._user.getUsers(deets.UsersWithCreatorAccess.guid)
if response and response.User:
for user in response.User:
match = re.match(r'^%s\\(.+)$' % (settings.PANOPTO_API_APP_ID), user.UserKey)
creators.append({
'key': match.group(1) if match else user.UserKey,
'id': user.UserId
})
if deets.UsersWithViewerAccess:
response = self._user.getUsers(deets.UsersWithCreatorAccess.guid)
if response and response.User:
for user in response.User:
match = re.match(r'^%s\\(.+)$' % (settings.PANOPTO_API_APP_ID), user.UserKey)
viewers.append({
'key': match.group(1) if match else user.UserKey,
'id': user.UserId
})
folders.append({
'name': folder.Name,
'id': folder.Id,
'auth' : {
'creators': creators,
'viewers': viewers
}
})
return self.json_response(folders)
class SessionBroadcast(RESTDispatch):
def __init__(self):
self._session_api = SessionManagement()
self._audit_log = logging.getLogger('audit')
def GET(self, request, **kwargs):
session_id = kwargs.get('session_id')
if session_id:
raw_session = self._session_api.getSessionsById([session_id])[0][0]
broadcast = {
'is_broadcast': raw_session['IsBroadcast'],
}
else:
broadcast = {}
return self.json_response(broadcast)
def PUT(self, request, **kwargs):
try:
session_id = kwargs.get('session_id')
data = json.loads(request.body)
is_broadcast = self._valid_boolean(
data.get("is_broadcast", False), 'bad broadcast flag')
self._session_api.updateSessionIsBroadcast(session_id,
is_broadcast)
self._audit_log.info('%s set %s broadcast to %s' % (
request.user, session_id, is_broadcast))
return self.json_response({
'recording_id': session_id
})
except InvalidParamException as ex:
return self.error_response(400, "%s" % ex)
except Exception as ex:
return self.error_response(500, "Unable to save session: %s" % ex)
def _valid_boolean(self, v, errstr):
if not (v is None or type(v) == bool):
raise InvalidParamException(errstr)
return v
def handle(self, *args, **options):
self._commit = options['commit']
self._courses = {}
self._session = SessionManagement()
self._recorder = RemoteRecorderManagement()
if options['stdin']:
for line in sys.stdin:
self._process_course(line.rstrip('\n'))
else:
for session in args:
self._process_course(session)
class Folder(RESTDispatch):
def __init__(self):
self._session = SessionManagement()
self._access = AccessManagement()
self._user = UserManagement()
def GET(self, request, **kwargs):
folder_id = kwargs.get("folder_id")
if folder_id:
return self._get_folder_details(space_id)
else:
params = {}
for q in request.GET:
params[q] = request.GET.get(q)
return self._list_folders(params)
def _get_folder_details(self, space_id):
return self.json_response("{}")
def _list_folders(self, args):
folders = []
if "search" in args:
search = args["search"].strip()
if len(search) > 3:
for folder in self._session.getFoldersList(search_query=search):
creators = []
viewers = []
deets = self._access.getFolderAccessDetails(folder["Id"])
if deets.UsersWithCreatorAccess:
response = self._user.getUsers(deets.UsersWithCreatorAccess.guid)
if response and response.User:
for user in response.User:
match = re.match(r"^%s\\(.+)$" % (settings.PANOPTO_API_APP_ID), user.UserKey)
creators.append({"key": match.group(1) if match else user.UserKey, "id": user.UserId})
if deets.UsersWithViewerAccess:
response = self._user.getUsers(deets.UsersWithCreatorAccess.guid)
if response and response.User:
for user in response.User:
match = re.match(r"^%s\\(.+)$" % (settings.PANOPTO_API_APP_ID), user.UserKey)
viewers.append({"key": match.group(1) if match else user.UserKey, "id": user.UserId})
folders.append(
{"name": folder.Name, "id": folder.Id, "auth": {"creators": creators, "viewers": viewers}}
)
return self.json_response(folders)
class Command(BaseCommand):
help = "Matchrecording session dates to SWS meeting times"
option_list = BaseCommand.option_list + (
make_option('--commit',
dest='commit',
action="store_true",
default=False,
help='Update Panopto recording with SWS meeting time'),
make_option('--stdin',
dest='stdin',
action="store_true",
default=False,
help='get Panopto session external ids on standard input'),
)
def handle(self, *args, **options):
self._commit = options['commit']
self._courses = {}
self._session = SessionManagement()
self._recorder = RemoteRecorderManagement()
if options['stdin']:
for line in sys.stdin:
self._process_course(line.rstrip('\n'))
else:
for session in args:
self._process_course(session)
def _process_course(self, session_id):
# 2015-spring-PSYCH-202-A-2015-06-04
course = re.match(
r'^(20[0-9]{2})-(winter|spring|summer|autumn)'
r'-([A-Z ]+)-([0-9]{3})-([A-Z][A-Z0-9]*)-2*', session_id)
if course:
label = "%s,%s,%s,%s/%s" % (course.group(1), course.group(2),
course.group(3), course.group(4),
course.group(5))
if label not in self._courses:
now = datetime.datetime.now(tz.tzlocal()).replace(
second=0, microsecond=0)
section = get_section_by_label(
label, include_instructor_not_on_time_schedule=False)
(start, end) = self._lecture_times(section)
self._courses[label] = {
'start': start.split(':'),
'end': end.split(':')
}
offered = self._courses[label]
else:
print >> sys.stderr, "unrecognized session id: %s" % session_id
return
pan_session = self._session.getSessionsByExternalId([session_id])
if 'Session' in pan_session and len(pan_session.Session) == 1:
# broken-ass suds.
fsuds = re.match(r'.*\<a\:StartTime\>([^<]+)\<\/a\:StartTime\>.*',
self._session._api.last_received().plain())
if not fsuds:
Exception('Untrustable time')
pan_start = parser.parse(fsuds.group(1))
pan_start_local = pan_start.astimezone(tz.tzlocal())
sws_start_local = pan_start_local.replace(
hour=int(offered['start'][0]), minute=int(offered['start'][1]))
sws_end_local = pan_start_local.replace(
hour=int(offered['end'][0]), minute=int(offered['end'][1]))
schedule_delta = sws_start_local - pan_start_local
duration_delta = (sws_end_local - sws_start_local).seconds - int(
pan_session.Session[0].Duration)
if schedule_delta or duration_delta:
pan_start = (pan_start_local + schedule_delta).astimezone(
tz.tzutc())
duration = pan_session.Session[0].Duration
if duration_delta:
duration += duration_delta
pan_end = pan_start + datetime.timedelta(0, duration)
adjustment = [
session_id,
'(%s)' % pan_session.Session[0].Id,
'' if self._commit else 'WOULD', 'RESCHEDULE',
fsuds.group(1), 'TO',
pan_start.isoformat(), ':'
]
if schedule_delta.days < 0:
adjustment.append("(-%s shift)" %
(datetime.timedelta() - schedule_delta))
else:
adjustment.append("(%s shift)" % schedule_delta)
if duration_delta:
adjustment.append('AND DURATION')
adjustment.append("%s" % duration_delta)
adjustment.append('seconds')
print >> sys.stderr, ' '.join(adjustment)
if self._commit:
result = self._recorder.updateRecordingTime(
pan_session.Session[0].Id, pan_start.isoformat(),
pan_end.isoformat())
if not result:
print >> sys.stderr, "FAIL: null return value"
elif result.ConflictsExist:
print >> sys.stderr, "CONFLICT: %s" % (
result.ConflictingSessions[0][0].SessionName)
else:
print >> sys.stderr, "UPDATED %s" % (
result.SessionIDs[0][0])
else:
print >> sys.stderr, "%s: UNCHANGED" % (session_id)
else:
print >> sys.stderr, "unrecognized session id: %s" % session_id
def _lecture_times(self, section):
for meeting in section.meetings:
if (meeting.meeting_type in ['lecture', 'quiz', 'seminar']
and meeting.start_time and meeting.end_time):
return meeting.start_time, meeting.end_time
Exception("no lecture times set")
def __init__(self):
self._session_api = SessionManagement()
self._audit_log = logging.getLogger('audit')
def __init__(self):
self._session_api = SessionManagement()
self._recorder_api = RemoteRecorderManagement()
self._access_api = AccessManagement()
self._user_api = UserManagement()
self._audit_log = logging.getLogger('audit')
class Session(RESTDispatch):
def __init__(self):
self._session_api = SessionManagement()
self._recorder_api = RemoteRecorderManagement()
self._access_api = AccessManagement()
self._user_api = UserManagement()
self._audit_log = logging.getLogger('audit')
def GET(self, request, **kwargs):
session_id = kwargs.get('session_id')
if session_id:
raw_session = self._session_api.getSessionsById(
[session_id])[0][0]
raw_access = self._access_api.getSessionAccessDetails(
session_id)
start_utc = pytz.utc.localize(
raw_session['StartTime']).astimezone(tz.tzutc())
session = {
'creator_id': raw_session['CreatorId'],
'description': raw_session['Description'],
'duration': raw_session['Duration'],
'external_id': raw_session['ExternalId'],
'folder_id': raw_session['FolderId'],
'folder_name': raw_session['FolderName'],
'folder_creators': [],
'id': raw_session['Id'],
'is_video_url': raw_session['IosVideoUrl'],
'is_broadcast': raw_session['IsBroadcast'],
'is_public': raw_access['IsPublic'],
'is_downloadable': raw_session['IsDownloadable'],
'name': raw_session['Name'],
'remote_recorder_ids': raw_session['RemoteRecorderIds'].get(
'guid', None),
'share_page_url': raw_session['SharePageUrl'],
'start_time': start_utc.isoformat(),
'state': raw_session['State'],
'status_message': raw_session['StatusMessage'],
'thumb_url': raw_session['ThumbUrl'],
'viewer_url': raw_session['ViewerUrl'],
}
else:
session = {}
return self.json_response(session)
def POST(self, request, **kwargs):
try:
new_session = self._validate_session(request.body)
session = self._recorder_api.scheduleRecording(new_session.get('name'),
new_session.get('folder_id'),
new_session.get('is_broadcast'),
new_session.get('start_time'),
new_session.get('end_time'),
new_session.get('recorder_id'))
if session.ConflictsExist:
conflict = session.ConflictingSessions[0][0]
start_time = conflict.StartTime
end_time = conflict.EndTime
content = {
'conflict_name': conflict.SessionName,
'conflict_start': start_time.isoformat(),
'conflict_end': end_time.isoformat()
}
return self.error_response(409, "Schedule Conflict Exists",
content=content)
session_id = session.SessionIDs[0][0]
self._session_api.updateSessionExternalId(
session_id, new_session.get('external_id'))
if new_session.get('is_public'):
self._access_api.updateSessionIsPublic(session_id, True)
messages = []
creators = new_session.get('folder_creators')
if creators and type(creators) is list:
messages = self._sync_creators(
new_session.get('folder_id'), creators)
self._audit_log.info('%s scheduled %s for %s from %s to %s' % (
request.user, new_session.get('external_id'),
new_session.get('uwnetid'), new_session.get('start_time'),
new_session.get('end_time')))
return self.json_response({
'recording_id': session_id,
'messages': messages
})
except InvalidParamException as ex:
return self.error_response(400, "%s" % ex)
except Exception as ex:
return self.error_response(500, "Unable to save session: %s" % ex)
def PUT(self, request, **kwargs):
try:
session_update = self._validate_session(request.body)
session = self._session_api.getSessionsById(
session_update.get('recording_id'))[0][0]
start_utc = session.StartTime.astimezone(pytz.utc)
end_utc = start_utc + datetime.timedelta(
seconds=int(session.Duration))
session_update_start = self._valid_time(session_update.get('start_time'))
session_update_end = self._valid_time(session_update.get('end_time'))
if not (start_utc.isoformat() == session_update_start
and end_utc.isoformat() == session_update_end):
self._recorder_api.updateRecordingTime(
session.Id, session_update_start, session_update_end)
access = self._access_api.getSessionAccessDetails(session.Id)
if access.IsPublic != session_update.get('is_public'):
self._access_api.updateSessionIsPublic(
session.Id, session_update.get('is_public'))
if session.IsBroadcast != session_update.get('is_broadcast'):
self._session_api.updateSessionIsBroadcast(
session.Id, session_update.get('is_broadcast'))
folder_name = session_update.get('folder_name')
if session.FolderName != folder_name:
self._session_api.moveSessions(
[session.Id], session_update.get('folder_id'))
messages = []
creators = session_update.get('folder_creators')
if creators and type(creators) is list:
messages = self._sync_creators(
session_update.get('folder_id'), creators)
self._audit_log.info('%s modified %s for %s from %s to %s in %s' % (
request.user, session_update.get('external_id'),
session_update.get('uwnetid'), session_update.get('start_time'),
session_update.get('end_time'), session_update.get('folder_name')))
return self.json_response({
'recording_id': session.Id,
'messages': messages
})
except InvalidParamException as ex:
return self.error_response(400, "%s" % ex)
except Exception as ex:
return self.error_response(500, "Unable to save session: %s" % ex)
def DELETE(self, request, **kwargs):
try:
session_id = self._valid_recorder_id(kwargs.get('session_id'))
# do not permit param tampering
key = course_event_key(request.GET.get('uwnetid', ''),
request.GET.get('name', ''),
request.GET.get('eid', ''),
request.GET.get('rid', ''))
if key != request.GET.get("key", None):
raise InvalidParamException('Invalid Client Key')
self._session_api.deleteSessions([session_id])
self._audit_log.info('%s deleted session %s' %
(request.user, session_id))
return self.json_response({
'deleted_recording_id': session_id
})
except InvalidParamException as err:
return self.error_response(400, "Invalid Parameter: %s" % err)
def _valid_folder(self, name, external_id):
try:
folder_id = Validation().panopto_id(external_id)
return folder_id
except InvalidParamException:
pass
try:
if external_id and len(external_id):
folders = self._session_api.getAllFoldersByExternalId(
[external_id])
if folders and len(folders) == 1 and len(folders[0]):
return folders[0][0].Id
folders = self._session_api.getFoldersList(search_query=name)
if folders and len(folders):
for folder in folders:
if folder.Name == name:
folder_id = folder.Id
if external_id and len(external_id):
self._session_api.updateFolderExternalId(
folder_id, external_id)
return folder_id
new_folder = self._session_api.addFolder(name)
if not new_folder:
raise InvalidParamException('Cannot add folder: %s' % name)
new_folder_id = new_folder.Id
if external_id and len(external_id):
self._session_api.updateFolderExternalId(
new_folder_id, external_id)
return new_folder_id
except Exception as ex:
raise InvalidParamException('Cannot add folder: %s' % ex)
def _validate_session(self, request_body):
session = {}
data = json.loads(request_body)
session['recording_id'] = data.get("recording_id", "")
session['uwnetid'] = data.get("uwnetid", "")
session['name'] = self._valid_recording_name(data.get("name", "").strip())
session['external_id'] = self._valid_external_id(
data.get("external_id", "").strip())
session['recorder_id'] = self._valid_recorder_id(
data.get("recorder_id", "").strip())
session['folder_external_id'] = data.get(
"folder_external_id", "").strip()
session['session_id'] = data.get("session_id", "").strip()
if len(session['session_id']):
self._valid_external_id(session['session_id'])
# do not permit param tamperings
key = course_event_key(session['uwnetid'], session['name'],
session['external_id'], session['recorder_id'])
if key != data.get("key", ''):
raise InvalidParamException('Invalid Client Key')
session['is_broadcast'] = self._valid_boolean(data.get("is_broadcast", False))
session['is_public'] = self._valid_boolean(data.get("is_public", False))
session['start_time'] = self._valid_time(data.get("start_time", "").strip())
session['end_time'] = self._valid_time(data.get("end_time", "").strip())
session['folder_name'] = data.get("folder_name", "").strip()
session['folder_id'] = self._valid_folder(session['folder_name'],
session['folder_external_id'])
session['folder_creators'] = data.get("creators", None)
return session
def _valid_external_id(self, external_id):
if external_id and len(external_id):
return external_id
raise InvalidParamException('bad external_id')
def _valid_recorder_id(self, recorder_id):
if (recorder_id):
return Validation().panopto_id(recorder_id)
raise InvalidParamException('missing recorder id')
def _valid_recording_name(self, name):
if name and len(name):
return name
raise InvalidParamException('bad recording name')
def _valid_boolean(self, is_broadcast):
if not (is_broadcast is None or type(is_broadcast) == bool):
raise InvalidParamException('bad broadcast flag')
return is_broadcast
def _valid_time(self, time):
if time and len(time):
return time
raise InvalidParamException('bad time value')
def _sync_creators(self, folder_id, folder_creators):
messages = []
new_creator_ids = []
deleted_creator_ids = []
current_creators = get_panopto_folder_creators(folder_id)
for creator in folder_creators:
if creator not in current_creators:
try:
new_creator_ids.append(self._get_panopto_user_id(creator))
except PanoptoUserException as ex:
messages.append('Invalid UWNetId %s' % creator)
for creator in current_creators:
if creator not in folder_creators:
try:
deleted_creator_ids.append(self._get_panopto_user_id(creator))
except PanoptoUserException as ex:
messages.append('Invalid UWNetId %s' % creator)
if len(new_creator_ids):
try:
self._access_api.grantUsersAccessToFolder(
folder_id, new_creator_ids, 'Creator')
except PanoptoAPIException as ex:
match = re.match(r'.*Server raised fault: \'(.+)\'$', str(ex))
messages.append('%s: %s' % (creator, match.group(1) if match else str(ex)))
if len(deleted_creator_ids):
try:
self._access_api.revokeUsersAccessFromFolder(
folder_id, deleted_creator_ids, 'Creator')
except PanoptoAPIException as ex:
match = re.match(r'.*Server raised fault: \'(.+)\'$', str(ex))
messages.append('%s: %s' % (creator, match.group(1) if match else str(ex)))
return messages
def _get_panopto_user_id(self, netid):
key = "%s\%s" % (settings.PANOPTO_API_APP_ID, netid)
user = self._user_api.getUserByKey(key)
if not user or user['UserId'] == '00000000-0000-0000-0000-000000000000':
raise PanoptoUserException('Unprovisioned UWNetId: %s' % (netid))
return user['UserId']
def __init__(self):
self._session = SessionManagement()
self._access = AccessManagement()
self._user = UserManagement()
def __init__(self):
self._session = SessionManagement()
self._access = AccessManagement()
self._user = UserManagement()
def get_sessions_by_external_ids(external_ids):
api = SessionManagement()
sessions = api.getSessionsByExternalId(external_ids)
return sessions.Session if (sessions and 'Session' in sessions and
len(sessions.Session)) else None
def get_sessions_by_session_ids(session_ids):
api = SessionManagement()
sessions = api.getSessionsById(session_ids)
return sessions.Session if (sessions and 'Session' in sessions and
len(sessions.Session)) else None
class Command(BaseCommand):
help = "Matchrecording session dates to SWS meeting times"
option_list = BaseCommand.option_list + (
make_option('--commit', dest='commit', action="store_true",
default=False,
help='Update Panopto recording with SWS meeting time'),
make_option('--stdin', dest='stdin', action="store_true",
default=False,
help='get Panopto session external ids on standard input'),
)
def handle(self, *args, **options):
self._commit = options['commit']
self._courses = {}
self._session = SessionManagement()
self._recorder = RemoteRecorderManagement()
if options['stdin']:
for line in sys.stdin:
self._process_course(line.rstrip('\n'))
else:
for session in args:
self._process_course(session)
def _process_course(self, session_id):
# 2015-spring-PSYCH-202-A-2015-06-04
course = re.match(r'^(20[0-9]{2})-(winter|spring|summer|autumn)'
r'-([A-Z ]+)-([0-9]{3})-([A-Z][A-Z0-9]*)-2*',
session_id)
if course:
label = "%s,%s,%s,%s/%s" % (
course.group(1), course.group(2), course.group(3),
course.group(4), course.group(5))
if label not in self._courses:
now = datetime.datetime.now(
tz.tzlocal()).replace(second=0, microsecond=0)
section = get_section_by_label(
label, include_instructor_not_on_time_schedule=False)
(start, end) = self._lecture_times(section)
self._courses[label] = {
'start': start.split(':'),
'end': end.split(':')
}
offered = self._courses[label]
else:
print >> sys.stderr, "unrecognized session id: %s" % session_id
return
pan_session = self._session.getSessionsByExternalId([session_id])
if 'Session' in pan_session and len(pan_session.Session) == 1:
# broken-ass suds.
fsuds = re.match(r'.*\<a\:StartTime\>([^<]+)\<\/a\:StartTime\>.*',
self._session._api.last_received().plain())
if not fsuds:
Exception('Untrustable time')
pan_start = parser.parse(fsuds.group(1))
pan_start_local = pan_start.astimezone(tz.tzlocal())
sws_start_local = pan_start_local.replace(
hour=int(offered['start'][0]),
minute=int(offered['start'][1]))
sws_end_local = pan_start_local.replace(
hour=int(offered['end'][0]),
minute=int(offered['end'][1]))
schedule_delta = sws_start_local - pan_start_local
duration_delta = (sws_end_local - sws_start_local).seconds - int(
pan_session.Session[0].Duration)
if schedule_delta or duration_delta:
pan_start = (pan_start_local +
schedule_delta).astimezone(tz.tzutc())
duration = pan_session.Session[0].Duration
if duration_delta:
duration += duration_delta
pan_end = pan_start + datetime.timedelta(0, duration)
adjustment = [session_id, '(%s)' % pan_session.Session[0].Id,
'' if self._commit else 'WOULD', 'RESCHEDULE',
fsuds.group(1), 'TO',
pan_start.isoformat(), ':']
if schedule_delta.days < 0:
adjustment.append("(-%s shift)" % (datetime.timedelta() -
schedule_delta))
else:
adjustment.append("(%s shift)" % schedule_delta)
if duration_delta:
adjustment.append('AND DURATION')
adjustment.append("%s" % duration_delta)
adjustment.append('seconds')
print >> sys.stderr, ' '.join(adjustment)
if self._commit:
result = self._recorder.updateRecordingTime(
pan_session.Session[0].Id,
pan_start.isoformat(),
pan_end.isoformat())
if not result:
print >> sys.stderr, "FAIL: null return value"
elif result.ConflictsExist:
print >> sys.stderr, "CONFLICT: %s" % (
result.ConflictingSessions[0][0].SessionName)
else:
print >> sys.stderr, "UPDATED %s" % (
result.SessionIDs[0][0])
else:
print >> sys.stderr, "%s: UNCHANGED" % (session_id)
else:
print >> sys.stderr, "unrecognized session id: %s" % session_id
def _lecture_times(self, section):
for meeting in section.meetings:
if (meeting.meeting_type in ['lecture', 'quiz', 'seminar'] and
meeting.start_time and meeting.end_time):
return meeting.start_time, meeting.end_time
Exception("no lecture times set")