本文整理汇总了Python中swift.common.swob.Request.call_application方法的典型用法代码示例。如果您正苦于以下问题：Python Request.call_application方法的具体用法？Python Request.call_application怎么用？Python Request.call_application使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类swift.common.swob.Request的用法示例。
在下文中一共展示了Request.call_application方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: __call__
# 需要导入模块: from swift.common.swob import Request [as 别名]
# 或者: from swift.common.swob.Request import call_application [as 别名]
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]