def download_assignment(self, request, suffix=''):
# pylint: disable=unused-argument
"""
Downloads the student's answer file from storage api and then returns a response
"""
try:
file_descriptor = storage.access_data(
str(self.course_id),
str(self.xmodule_runtime.anonymous_student_id),
str(self.location.block_id))
except PersonValueError:
log.info("storage api download failed:")
log.info("peson argument cant be an empty string")
except DepartmentValueError:
log.info("storage api download failed:")
log.info("department argument cant be an empty string")
except QualifierValueError:
log.info("storage api download failed:")
log.info("qualifier argument cant be an empty string")
except BucketValueError:
log.info("storage api download failed:")
log.info("invalid bucket key argument")
except S3ValueError:
log.info("storage api download failed:")
log.info("invalid S3 credentials")
except SocketValueError:
log.info("storage api download failed:")
log.info("invalid host")
app_iter = iter(partial(file_descriptor.read, BLOCK_SIZE), '')
return Response(app_iter=app_iter,
content_type=self.raw_answer["mimetype"],
content_disposition="attachment; filename=" +
self.raw_answer["filename"].encode('utf-8'))
def download_solution(self, request, suffix=''):
# pylint: disable=unused-argument
"""
Downloads the solution file from storage api and then returns a response
"""
log.info("download_solution called")
try:
file_descriptor = storage.access_data(str(self.course_id),
"solution",
str(self.location.block_id))
log.info("file_descriptor is:")
log.info(file_descriptor)
if not file_descriptor:
log.info("storage api download failed:")
log.info("file doesn't exist")
return
log.info("download through storage api successful")
app_iter = iter(partial(file_descriptor.read, BLOCK_SIZE), '')
return Response(app_iter=app_iter,
content_type=self.raw_solution["mimetype"],
content_disposition="attachment; filename=" +
self.raw_solution["filename"].encode('utf-8'))
except storage.PersonValueError:
log.info("storage api download failed:")
log.info("peson argument cant be an empty string")
return
except DepartmentValueError:
log.info("storage api download failed:")
log.info("department argument cant be an empty string")
return
except QualifierValueError:
log.info("storage api download failed:")
log.info("qualifier argument cant be an empty string")
return
except BucketValueError:
log.info("storage api download failed:")
log.info("invalid bucket key argument")
return
except S3ValueError:
log.info("storage api download failed:")
log.info("invalid S3 credentials")
return
except SocketValueError:
log.info("storage api download failed:")
log.info("invalid host")
return