zulip/zephyr/decorator.py

27 lines
737 B
Python

from functools import wraps
import types
class TornadoAsyncException(Exception): pass
class _DefGen_Return(BaseException):
def __init__(self, value):
self.value = value
def returnResponse(value):
raise _DefGen_Return(value)
def asynchronous(method):
@wraps(method)
def wrapper(request, *args, **kwargs):
try:
v = method(request, request._tornado_handler, *args, **kwargs)
if v == None or type(v) == types.GeneratorType:
raise TornadoAsyncException
except _DefGen_Return, e:
request._tornado_handler.finish(e.value.content)
return v
if getattr(method, 'csrf_exempt', False):
wrapper.csrf_exempt = True
return wrapper