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