mirror of
https://github.com/django/daphne.git
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131 lines
5.1 KiB
Python
131 lines
5.1 KiB
Python
import datetime
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import sys
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import threading
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from django.conf import settings
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from django.core.management.commands.runserver import \
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Command as RunserverCommand
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from django.utils import six
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from django.utils.encoding import get_system_encoding
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from channels import DEFAULT_CHANNEL_LAYER, channel_layers
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from channels.handler import ViewConsumer
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from channels.log import setup_logger
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from channels.worker import Worker
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class Command(RunserverCommand):
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def add_arguments(self, parser):
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super(Command, self).add_arguments(parser)
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parser.add_argument('--noworker', action='store_false', dest='run_worker', default=True,
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help='Tells Django not to run a worker thread; you\'ll need to run one separately.')
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def handle(self, *args, **options):
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self.verbosity = options.get("verbosity", 1)
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self.logger = setup_logger('django.channels', self.verbosity)
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super(Command, self).handle(*args, **options)
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def inner_run(self, *args, **options):
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# Check a handler is registered for http reqs; if not, add default one
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self.channel_layer = channel_layers[DEFAULT_CHANNEL_LAYER]
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self.channel_layer.registry.check_default()
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# Run checks
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self.stdout.write("Performing system checks...\n\n")
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self.check(display_num_errors=True)
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self.check_migrations()
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# Print helpful text
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quit_command = 'CTRL-BREAK' if sys.platform == 'win32' else 'CONTROL-C'
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now = datetime.datetime.now().strftime('%B %d, %Y - %X')
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if six.PY2:
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now = now.decode(get_system_encoding())
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self.stdout.write(now)
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self.stdout.write((
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"Django version %(version)s, using settings %(settings)r\n"
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"Starting Channels development server at http://%(addr)s:%(port)s/\n"
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"Channel layer %(layer)s\n"
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"Quit the server with %(quit_command)s.\n"
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) % {
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"version": self.get_version(),
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"settings": settings.SETTINGS_MODULE,
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"addr": '[%s]' % self.addr if self._raw_ipv6 else self.addr,
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"port": self.port,
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"quit_command": quit_command,
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"layer": self.channel_layer,
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})
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# Launch worker as subthread
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if options.get("run_worker", True):
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worker = WorkerThread(self.channel_layer, self.logger)
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worker.daemon = True
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worker.start()
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# Launch server in 'main' thread. Signals are disabled as it's still
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# actually a subthread under the autoreloader.
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self.logger.debug("Daphne running, listening on %s:%s", self.addr, self.port)
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try:
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from daphne.server import Server
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Server(
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channel_layer=self.channel_layer,
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host=self.addr,
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port=int(self.port),
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signal_handlers=not options['use_reloader'],
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action_logger=self.log_action,
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).run()
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self.logger.debug("Daphne exited")
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except KeyboardInterrupt:
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shutdown_message = options.get('shutdown_message', '')
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if shutdown_message:
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self.stdout.write(shutdown_message)
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return
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def log_action(self, protocol, action, details):
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"""
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Logs various different kinds of requests to the console.
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"""
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# All start with timestamp
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msg = "[%s] " % datetime.datetime.now().strftime("%Y/%m/%d %H:%M:%S")
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# HTTP requests
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if protocol == "http" and action == "complete":
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msg += "HTTP %(method)s %(path)s %(status)s [%(client)s]\n" % details
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# Utilize terminal colors, if available
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if 200 <= details['status'] < 300:
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# Put 2XX first, since it should be the common case
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msg = self.style.HTTP_SUCCESS(msg)
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elif 100 <= details['status'] < 200:
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msg = self.style.HTTP_INFO(msg)
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elif details['status'] == 304:
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msg = self.style.HTTP_NOT_MODIFIED(msg)
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elif 300 <= details['status'] < 400:
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msg = self.style.HTTP_REDIRECT(msg)
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elif details['status'] == 404:
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msg = self.style.HTTP_NOT_FOUND(msg)
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elif 400 <= details['status'] < 500:
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msg = self.style.HTTP_BAD_REQUEST(msg)
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else:
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# Any 5XX, or any other response
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msg = self.style.HTTP_SERVER_ERROR(msg)
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# Websocket requests
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elif protocol == "websocket" and action == "connected":
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msg += "WebSocket CONNECT %(path)s [%(client)s]\n" % details
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elif protocol == "websocket" and action == "disconnected":
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msg += "WebSocket DISCONNECT %(path)s [%(client)s]\n" % details
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sys.stderr.write(msg)
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class WorkerThread(threading.Thread):
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"""
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Class that runs a worker
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"""
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def __init__(self, channel_layer, logger):
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super(WorkerThread, self).__init__()
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self.channel_layer = channel_layer
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self.logger = logger
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def run(self):
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self.logger.debug("Worker thread running")
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worker = Worker(channel_layer=self.channel_layer)
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worker.run()
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self.logger.debug("Worker thread exited")
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