def __call__(self, env, start_response):
req = Request(env)
try:
version, account, container, obj = req.split_path(
2, 4, rest_with_last=True)
is_swifty_request = valid_api_version(version)
except ValueError:
is_swifty_request = False
if not is_swifty_request:
return self.app(env, start_response)
if not obj:
typ = 'Container' if container else 'Account'
client_header = 'X-%s-Rfc-Compliant-Etags' % typ
sysmeta_header = 'X-%s-Sysmeta-Rfc-Compliant-Etags' % typ
if client_header in req.headers:
if req.headers[client_header]:
req.headers[sysmeta_header] = config_true_value(
req.headers[client_header])
else:
req.headers[sysmeta_header] = ''
if req.headers.get(client_header.replace('X-', 'X-Remove-', 1)):
req.headers[sysmeta_header] = ''
def translating_start_response(status, headers, exc_info=None):
return start_response(
status,
[(client_header if h.title() == sysmeta_header else h, v)
for h, v in headers], exc_info)
return self.app(env, translating_start_response)
container_info = get_container_info(env, self.app, 'EQ')
if not container_info or not is_success(container_info['status']):
return self.app(env, start_response)
flag = container_info.get('sysmeta', {}).get('rfc-compliant-etags')
if flag is None:
account_info = get_account_info(env, self.app, 'EQ')
if not account_info or not is_success(account_info['status']):
return self.app(env, start_response)
flag = account_info.get('sysmeta', {}).get('rfc-compliant-etags')
if flag is None:
flag = self.conf.get('enable_by_default', 'false')
if not config_true_value(flag):
return self.app(env, start_response)
status, headers, resp_iter = req.call_application(self.app)
headers = [(header,
value) if header.lower() != 'etag' or (value.startswith(
('"', 'W/"')) and value.endswith('"')) else
(header, '"%s"' % value) for header, value in headers]
start_response(status, headers)
return resp_iter
def __call__(self, env, start_response):
req = Request(env)
try:
# account and container only
version, acct, cont = req.split_path(2, 3)
except ValueError:
return self.app(env, start_response)
if not valid_api_version(version) or req.method not in ('GET', 'HEAD'):
return self.app(env, start_response)
# OK, definitely have an account/container request.
# Get the desired content-type, then force it to a JSON request.
try:
out_content_type = get_listing_content_type(req)
except HTTPException as err:
return err(env, start_response)
params = req.params
params['format'] = 'json'
req.params = params
status, headers, resp_iter = req.call_application(self.app)
header_to_index = {}
resp_content_type = resp_length = None
for i, (header, value) in enumerate(headers):
header = header.lower()
if header == 'content-type':
header_to_index[header] = i
resp_content_type = value.partition(';')[0]
elif header == 'content-length':
header_to_index[header] = i
resp_length = int(value)
if not status.startswith('200 '):
start_response(status, headers)
return resp_iter
if resp_content_type != 'application/json':
start_response(status, headers)
return resp_iter
if resp_length is None or \
resp_length > MAX_CONTAINER_LISTING_CONTENT_LENGTH:
start_response(status, headers)
return resp_iter
def set_header(header, value):
if value is None:
del headers[header_to_index[header]]
else:
headers[header_to_index[header]] = (
headers[header_to_index[header]][0], str(value))
if req.method == 'HEAD':
set_header('content-type', out_content_type + '; charset=utf-8')
set_header('content-length', None) # don't know, can't determine
start_response(status, headers)
return resp_iter
body = b''.join(resp_iter)
try:
listing = json.loads(body)
# Do a couple sanity checks
if not isinstance(listing, list):
raise ValueError
if not all(isinstance(item, dict) for item in listing):
raise ValueError
except ValueError:
# Static web listing that's returning invalid JSON?
# Just pass it straight through; that's about all we *can* do.
start_response(status, headers)
return [body]
try:
if out_content_type.endswith('/xml'):
if cont:
body = container_to_xml(listing, cont)
else:
body = account_to_xml(listing, acct)
elif out_content_type == 'text/plain':
body = listing_to_text(listing)
# else, json -- we continue down here to be sure we set charset
except KeyError:
# listing was in a bad format -- funky static web listing??
start_response(status, headers)
return [body]
if not body:
status = '%s %s' % (HTTP_NO_CONTENT,
RESPONSE_REASONS[HTTP_NO_CONTENT][0])
set_header('content-type', out_content_type + '; charset=utf-8')
set_header('content-length', len(body))
start_response(status, headers)
return [body]
def __call__(self, env, start_response):
req = Request(env)
try:
# account and container only
version, acct, cont = req.split_path(2, 3)
except ValueError:
is_account_or_container_req = False
else:
is_account_or_container_req = True
if not is_account_or_container_req:
return self.app(env, start_response)
if not valid_api_version(version) or req.method not in ('GET', 'HEAD'):
return self.app(env, start_response)
# OK, definitely have an account/container request.
# Get the desired content-type, then force it to a JSON request.
try:
out_content_type = get_listing_content_type(req)
except HTTPException as err:
return err(env, start_response)
params = req.params
can_vary = 'format' not in params
params['format'] = 'json'
req.params = params
# Give other middlewares a chance to be in charge
env.setdefault('swift.format_listing', True)
status, headers, resp_iter = req.call_application(self.app)
if not env.get('swift.format_listing'):
start_response(status, headers)
return resp_iter
header_to_index = {}
resp_content_type = resp_length = None
for i, (header, value) in enumerate(headers):
header = header.lower()
if header == 'content-type':
header_to_index[header] = i
resp_content_type = value.partition(';')[0]
elif header == 'content-length':
header_to_index[header] = i
resp_length = int(value)
elif header == 'vary':
header_to_index[header] = i
if not status.startswith(('200 ', '204 ')):
start_response(status, headers)
return resp_iter
if can_vary:
if 'vary' in header_to_index:
value = headers[header_to_index['vary']][1]
if 'accept' not in list_from_csv(value.lower()):
headers[header_to_index['vary']] = ('Vary',
value + ', Accept')
else:
headers.append(('Vary', 'Accept'))
if resp_content_type != 'application/json':
start_response(status, headers)
return resp_iter
if resp_length is None or \
resp_length > MAX_CONTAINER_LISTING_CONTENT_LENGTH:
start_response(status, headers)
return resp_iter
def set_header(header, value):
if value is None:
del headers[header_to_index[header]]
else:
headers[header_to_index[header]] = (
headers[header_to_index[header]][0], str(value))
if req.method == 'HEAD':
set_header('content-type', out_content_type + '; charset=utf-8')
set_header('content-length', None) # don't know, can't determine
start_response(status, headers)
return resp_iter
body = b''.join(resp_iter)
try:
listing = json.loads(body)
# Do a couple sanity checks
if not isinstance(listing, list):
raise ValueError
if not all(isinstance(item, dict) for item in listing):
raise ValueError
except ValueError:
# Static web listing that's returning invalid JSON?
# Just pass it straight through; that's about all we *can* do.
start_response(status, headers)
return [body]
if not req.allow_reserved_names:
listing = self.filter_reserved(listing, acct, cont)
try:
if out_content_type.endswith('/xml'):
if cont:
body = container_to_xml(
listing,
wsgi_to_bytes(cont).decode('utf-8'))
else:
body = account_to_xml(listing,
wsgi_to_bytes(acct).decode('utf-8'))
elif out_content_type == 'text/plain':
body = listing_to_text(listing)
else:
body = json.dumps(listing).encode('ascii')
except KeyError:
# listing was in a bad format -- funky static web listing??
start_response(status, headers)
return [body]
if not body:
status = '%s %s' % (HTTP_NO_CONTENT,
RESPONSE_REASONS[HTTP_NO_CONTENT][0])
set_header('content-type', out_content_type + '; charset=utf-8')
set_header('content-length', len(body))
start_response(status, headers)
return [body]
def __call__(self, env, start_response):
req = Request(env)
try:
# account and container only
version, acct, cont = req.split_path(2, 3)
except ValueError:
return self.app(env, start_response)
if not valid_api_version(version) or req.method not in ('GET', 'HEAD'):
return self.app(env, start_response)
# OK, definitely have an account/container request.
# Get the desired content-type, then force it to a JSON request.
try:
out_content_type = get_listing_content_type(req)
except HTTPException as err:
return err(env, start_response)
params = req.params
params['format'] = 'json'
req.params = params
status, headers, resp_iter = req.call_application(self.app)
header_to_index = {}
resp_content_type = resp_length = None
for i, (header, value) in enumerate(headers):
header = header.lower()
if header == 'content-type':
header_to_index[header] = i
resp_content_type = value.partition(';')[0]
elif header == 'content-length':
header_to_index[header] = i
resp_length = int(value)
if not status.startswith('200 '):
start_response(status, headers)
return resp_iter
if resp_content_type != 'application/json':
start_response(status, headers)
return resp_iter
if resp_length is None or \
resp_length > MAX_CONTAINER_LISTING_CONTENT_LENGTH:
start_response(status, headers)
return resp_iter
def set_header(header, value):
if value is None:
del headers[header_to_index[header]]
else:
headers[header_to_index[header]] = (
headers[header_to_index[header]][0], str(value))
if req.method == 'HEAD':
set_header('content-type', out_content_type + '; charset=utf-8')
set_header('content-length', None) # don't know, can't determine
start_response(status, headers)
return resp_iter
body = b''.join(resp_iter)
try:
listing = json.loads(body)
# Do a couple sanity checks
if not isinstance(listing, list):
raise ValueError
if not all(isinstance(item, dict) for item in listing):
raise ValueError
except ValueError:
# Static web listing that's returning invalid JSON?
# Just pass it straight through; that's about all we *can* do.
start_response(status, headers)
return [body]
try:
if out_content_type.endswith('/xml'):
if cont:
body = container_to_xml(listing, cont)
else:
body = account_to_xml(listing, acct)
elif out_content_type == 'text/plain':
body = listing_to_text(listing)
# else, json -- we continue down here to be sure we set charset
except KeyError:
# listing was in a bad format -- funky static web listing??
start_response(status, headers)
return [body]
if not body:
status = '%s %s' % (HTTP_NO_CONTENT,
RESPONSE_REASONS[HTTP_NO_CONTENT][0])
set_header('content-type', out_content_type + '; charset=utf-8')
set_header('content-length', len(body))
start_response(status, headers)
return [body]
