def on_put(self, req, resp, vault_id, block_id):
"""Uploads a block into Deuce. The URL of the block
is returned in the Location header
"""
vault = Vault.get(vault_id)
try:
retval, storage_id = vault.put_block(block_id, req.stream.read(),
req.content_length)
resp.set_header('X-Storage-ID', str(storage_id))
resp.set_header('X-Block-ID', str(block_id))
block = vault.get_block(block_id)
ref_cnt = 0
ref_mod = 0
if retval:
ref_cnt = block.get_ref_count()
ref_mod = block.get_ref_modified()
resp.set_header('X-Block-Reference-Count', str(ref_cnt))
resp.set_header('X-Ref-Modified', str(ref_mod))
resp.status = (falcon.HTTP_201
if retval is True else falcon.HTTP_500)
logger.info('block [{0}] added [{1}]'.format(block_id, storage_id))
except ValueError as e:
raise errors.HTTPPreconditionFailed('hash error')
except BufferError as e:
raise errors.HTTPPreconditionFailed(
'content length did not match data length')
def decode_service_catalog(catalog):
"""Decode a JSON-based Base64 encoded Service Catalog
"""
try:
data = base64.b64decode(catalog)
utf8_data = data.decode(encoding='utf-8', errors='strict')
except binascii.Error:
raise errors.HTTPPreconditionFailed(
"X-Service-Catalog invalid encoding")
try:
json_data = json.loads(utf8_data)
except ValueError:
raise errors.HTTPPreconditionFailed("X-Service-Catalog invalid format")
return json_data
def on_post(self, req, resp, vault_id):
vault = Vault.get(vault_id)
try:
unpacked = msgpack.unpackb(req.stream.read())
if not isinstance(unpacked, dict):
raise TypeError
else:
block_ids = list(unpacked.keys())
block_datas = list(unpacked.values())
try:
retval = vault.put_async_block(block_ids, block_datas)
if retval:
resp.status = falcon.HTTP_201
else:
raise errors.HTTPInternalServerError('Block '
'Post Failed')
logger.info('blocks [{0}] added'.format(block_ids))
except ValueError:
raise errors.HTTPPreconditionFailed('hash error')
except (TypeError, ValueError):
logger.error('Request Body not well formed '
'for posting multiple blocks to {0}'.format(vault_id))
raise errors.HTTPBadRequestBody("Request Body not well formed")
def find_storage_url(catalog):
try:
main_catalog = catalog
if 'access' in catalog:
main_catalog = catalog['access']
service_catalog = main_catalog['serviceCatalog']
for service in service_catalog:
if service['type'] == 'object-store':
for endpoint in service['endpoints']:
if endpoint['region'].lower() == \
deuce.context.datacenter:
return endpoint['internalURL']
raise errors.HTTPPreconditionFailed(
"X-Service-Catalog missing object store")
except (KeyError, LookupError):
raise errors.HTTPPreconditionFailed(
"X-Service-Catalog invalid service catalog")