mirror of
https://github.com/kennethreitz/flask-sockets.git
synced 2026-06-05 23:10:16 +00:00
Alexander Oblovatniy
110 lines
3.4 KiB
Python
110 lines
3.4 KiB
Python
# -*- coding: utf-8 -*-
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from werkzeug.routing import Map, Rule
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from werkzeug.exceptions import NotFound
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def log_request(self):
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log = self.server.log
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if log:
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if hasattr(log, 'info'):
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log.info(self.format_request() + '\n')
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else:
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log.write(self.format_request() + '\n')
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# Monkeys are made for freedom.
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try:
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import gevent
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from geventwebsocket.gunicorn.workers import GeventWebSocketWorker as Worker
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except ImportError:
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pass
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if 'gevent' in locals():
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# Freedom-Patch logger for Gunicorn.
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if hasattr(gevent, 'pywsgi'):
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gevent.pywsgi.WSGIHandler.log_request = log_request
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class SocketMiddleware(object):
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def __init__(self, wsgi_app, app, socket):
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self.ws = socket
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self.app = app
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self.wsgi_app = wsgi_app
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def __call__(self, environ, start_response):
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adapter = self.ws.url_map.bind_to_environ(environ)
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try:
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handler, values = adapter.match()
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environment = environ['wsgi.websocket']
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with self.app.app_context():
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with self.app.request_context(environ):
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handler(environment, **values)
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return []
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except (NotFound, KeyError):
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return self.wsgi_app(environ, start_response)
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class Sockets(object):
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def __init__(self, app=None):
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#: Compatibility with 'Flask' application.
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#: The :class:`~werkzeug.routing.Map` for this instance. You can use
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#: this to change the routing converters after the class was created
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#: but before any routes are connected.
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self.url_map = Map()
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#: Compatibility with 'Flask' application.
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#: All the attached blueprints in a dictionary by name. Blueprints
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#: can be attached multiple times so this dictionary does not tell
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#: you how often they got attached.
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self.blueprints = {}
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self._blueprint_order = []
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if app:
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self.init_app(app)
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def init_app(self, app):
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app.wsgi_app = SocketMiddleware(app.wsgi_app, app, self)
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def route(self, rule, **options):
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def decorator(f):
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endpoint = options.pop('endpoint', None)
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self.add_url_rule(rule, endpoint, f, **options)
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return f
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return decorator
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def add_url_rule(self, rule, _, f, **options):
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self.url_map.add(Rule(rule, endpoint=f))
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def register_blueprint(self, blueprint, **options):
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"""
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Registers a blueprint for web sockets like for 'Flask' application.
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Decorator :meth:`~flask.app.setupmethod` is not applied, because it
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requires ``debug`` and ``_got_first_request`` attributes to be defined.
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"""
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first_registration = False
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if blueprint.name in self.blueprints:
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assert self.blueprints[blueprint.name] is blueprint, (
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'A blueprint\'s name collision occurred between %r and '
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'%r. Both share the same name "%s". Blueprints that '
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'are created on the fly need unique names.'
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% (blueprint, self.blueprints[blueprint.name], blueprint.name))
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else:
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self.blueprints[blueprint.name] = blueprint
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self._blueprint_order.append(blueprint)
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first_registration = True
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blueprint.register(self, options, first_registration)
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# CLI sugar.
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if 'Worker' in locals():
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worker = Worker
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