def put(self, request, pk):
# Update science metadata based on resourcemetadata.xml uploaded
resource, authorized, user = view_utils.authorize(
request,
pk,
needed_permission=ACTION_TO_AUTHORIZE.EDIT_RESOURCE,
raises_exception=False)
if not authorized:
raise PermissionDenied()
files = request.FILES.values()
if len(files) == 0:
error_msg = {
'file':
'No resourcemetadata.xml file was found to update resource '
'metadata.'
}
raise ValidationError(detail=error_msg)
elif len(files) > 1:
error_msg = {
'file': ('More than one file was found. Only one file, named '
'resourcemetadata.xml, '
'can be used to update resource metadata.')
}
raise ValidationError(detail=error_msg)
scimeta = files[0]
if scimeta.content_type not in self.ACCEPT_FORMATS:
error_msg = {
'file': ("Uploaded file has content type {t}, "
"but only these types are accepted: {e}.").format(
t=scimeta.content_type,
e=",".join(self.ACCEPT_FORMATS))
}
raise ValidationError(detail=error_msg)
expect = 'resourcemetadata.xml'
if scimeta.name != expect:
error_msg = {
'file':
"Uploaded file has name {n}, but expected {e}.".format(
n=scimeta.name, e=expect)
}
raise ValidationError(detail=error_msg)
# Temp directory to store resourcemetadata.xml
tmp_dir = tempfile.mkdtemp()
try:
# Fake the bag structure so that GenericResourceMeta.read_metadata_from_resource_bag
# can read and validate the system and science metadata for us.
bag_data_path = os.path.join(tmp_dir, 'data')
os.mkdir(bag_data_path)
# Copy new science metadata to bag data path
scimeta_path = os.path.join(bag_data_path, 'resourcemetadata.xml')
shutil.copy(scimeta.temporary_file_path(), scimeta_path)
# Copy existing resource map to bag data path
# (use a file-like object as the file may be in iRODS, so we can't
# just copy it to a local path)
resmeta_path = os.path.join(bag_data_path, 'resourcemap.xml')
with open(resmeta_path, 'wb') as resmeta:
storage = get_file_storage()
resmeta_irods = storage.open(AbstractResource.sysmeta_path(pk))
shutil.copyfileobj(resmeta_irods, resmeta)
resmeta_irods.close()
try:
# Read resource system and science metadata
domain = Site.objects.get_current().domain
rm = GenericResourceMeta.read_metadata_from_resource_bag(
tmp_dir, hydroshare_host=domain)
# Update resource metadata
rm.write_metadata_to_resource(resource,
update_title=True,
update_keywords=True)
create_bag_files(resource)
except HsDeserializationDependencyException as e:
msg = (
"HsDeserializationDependencyException encountered when updating "
"science metadata for resource {pk}; depedent resource was {dep}."
)
msg = msg.format(pk=pk, dep=e.dependency_resource_id)
logger.error(msg)
raise ValidationError(detail=msg)
except HsDeserializationException as e:
raise ValidationError(detail=e.message)
resource_modified(resource, request.user, overwrite_bag=False)
return Response(data={'resource_id': pk},
status=status.HTTP_202_ACCEPTED)
finally:
shutil.rmtree(tmp_dir)
def put(self, request, pk):
# Update science metadata based on resourcemetadata.xml uploaded
resource, authorized, user = view_utils.authorize(
request, pk,
needed_permission=ACTION_TO_AUTHORIZE.EDIT_RESOURCE,
raises_exception=False)
if not authorized:
raise PermissionDenied()
files = request.FILES.values()
if len(files) == 0:
error_msg = {'file': 'No resourcemetadata.xml file was found to update resource '
'metadata.'}
raise ValidationError(detail=error_msg)
elif len(files) > 1:
error_msg = {'file': ('More than one file was found. Only one file, named '
'resourcemetadata.xml, '
'can be used to update resource metadata.')}
raise ValidationError(detail=error_msg)
scimeta = files[0]
if scimeta.content_type not in self.ACCEPT_FORMATS:
error_msg = {'file': ("Uploaded file has content type {t}, "
"but only these types are accepted: {e}.").format(
t=scimeta.content_type, e=",".join(self.ACCEPT_FORMATS))}
raise ValidationError(detail=error_msg)
expect = 'resourcemetadata.xml'
if scimeta.name != expect:
error_msg = {'file': "Uploaded file has name {n}, but expected {e}.".format(
n=scimeta.name, e=expect)}
raise ValidationError(detail=error_msg)
# Temp directory to store resourcemetadata.xml
tmp_dir = tempfile.mkdtemp()
try:
# Fake the bag structure so that GenericResourceMeta.read_metadata_from_resource_bag
# can read and validate the system and science metadata for us.
bag_data_path = os.path.join(tmp_dir, 'data')
os.mkdir(bag_data_path)
# Copy new science metadata to bag data path
scimeta_path = os.path.join(bag_data_path, 'resourcemetadata.xml')
shutil.copy(scimeta.temporary_file_path(), scimeta_path)
# Copy existing resource map to bag data path
# (use a file-like object as the file may be in iRODS, so we can't
# just copy it to a local path)
resmeta_path = os.path.join(bag_data_path, 'resourcemap.xml')
with open(resmeta_path, 'wb') as resmeta:
storage = get_file_storage()
resmeta_irods = storage.open(AbstractResource.sysmeta_path(pk))
shutil.copyfileobj(resmeta_irods, resmeta)
resmeta_irods.close()
try:
# Read resource system and science metadata
domain = Site.objects.get_current().domain
rm = GenericResourceMeta.read_metadata_from_resource_bag(tmp_dir,
hydroshare_host=domain)
# Update resource metadata
rm.write_metadata_to_resource(resource, update_title=True, update_keywords=True)
create_bag_files(resource)
except HsDeserializationDependencyException as e:
msg = ("HsDeserializationDependencyException encountered when updating "
"science metadata for resource {pk}; depedent resource was {dep}.")
msg = msg.format(pk=pk, dep=e.dependency_resource_id)
logger.error(msg)
raise ValidationError(detail=msg)
except HsDeserializationException as e:
raise ValidationError(detail=e.message)
resource_modified(resource, request.user, overwrite_bag=False)
return Response(data={'resource_id': pk}, status=status.HTTP_202_ACCEPTED)
finally:
shutil.rmtree(tmp_dir)
