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SickRage/tornado/routing.py

77 lines
2.8 KiB
Python

'''
Created on May 31, 2014
@author: Fenriswolf
'''
import logging
import inspect
import re
from collections import OrderedDict
from tornado.web import Application, RequestHandler, HTTPError
app_routing_log = logging.getLogger("tornado.application.routing")
class RoutingApplication(Application):
def __init__(self, handlers=None, default_host="", transforms=None, wsgi=False, **settings):
Application.__init__(self, handlers, default_host, transforms, wsgi, **settings)
self.handler_map = OrderedDict()
def expose(self, rule='', methods = ['GET'], kwargs=None, name=None):
"""
A decorator that is used to register a given URL rule.
"""
def decorator(func, *args, **kwargs):
func_name = func.__name__
frm = inspect.stack()[1]
class_name = frm[3]
module_name = frm[0].f_back.f_globals["__name__"]
full_class_name = module_name + '.' + class_name
for method in methods:
func_rule = rule if rule else None
if not func_rule:
if func_name == 'index':
func_rule = class_name
else:
func_rule = class_name + '/' + func_name
func_rule = r'/%s(.*)(/?)' % func_rule
if full_class_name not in self.handler_map:
self.handler_map.setdefault(full_class_name, {})[method] = [(func_rule, func_name)]
else:
self.handler_map[full_class_name][method] += [(func_rule, func_name)]
app_routing_log.info("register %s %s to %s.%s" % (method, func_rule, full_class_name, func_name))
return func
return decorator
def setRouteHandlers(self):
handlers = [(rule[0], full_class_name)
for full_class_name, methods in self.handler_map.items()
for rules in methods.values()
for rule in rules]
self.add_handlers(".*$", handlers)
class RequestRoutingHandler(RequestHandler):
def _get_func_name(self):
full_class_name = self.__module__ + '.' + self.__class__.__name__
rules = self.application.handler_map.get(full_class_name, {}).get(self.request.method, [])
for rule, func_name in rules:
if not rule or not func_name:
continue
match = re.match(rule, self.request.path)
if match:
return func_name
raise HTTPError(404, "")
def _execute_method(self):
if not self._finished:
func_name = self._get_func_name()
method = getattr(self, func_name)
self._when_complete(method(*self.path_args, **self.path_kwargs),
self._execute_finish)