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62 lines
2.1 KiB
Python
62 lines
2.1 KiB
Python
import django
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import threading
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from django.core.management.commands.runserver import Command as RunserverCommand
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from django.core.management import CommandError
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from django.core.handlers.wsgi import WSGIHandler
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from django.http import HttpResponse
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from channels import Channel, channel_backends, DEFAULT_CHANNEL_BACKEND
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from channels.worker import Worker
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from channels.utils import auto_import_consumers
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from channels.adapters import UrlConsumer
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class Command(RunserverCommand):
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def get_handler(self, *args, **options):
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"""
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Returns the default WSGI handler for the runner.
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"""
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django.setup()
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return WSGIInterfaceHandler()
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def run(self, *args, **options):
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# Force disable reloader for now
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options['use_reloader'] = False
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# Check a handler is registered for http reqs
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channel_backend = channel_backends[DEFAULT_CHANNEL_BACKEND]
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auto_import_consumers()
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if not channel_backend.registry.consumer_for_channel("django.wsgi.request"):
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# Register the default one
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channel_backend.registry.add_consumer(UrlConsumer(), ["django.wsgi.request"])
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# Launch a worker thread
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worker = WorkerThread(channel_backend)
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worker.daemon = True
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worker.start()
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# Run the rest
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return super(Command, self).run(*args, **options)
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class WSGIInterfaceHandler(WSGIHandler):
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"""
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New WSGI handler that pushes requests to channels.
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"""
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def get_response(self, request):
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request.response_channel = Channel.new_name("django.wsgi.response")
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Channel("django.wsgi.request").send(**request.channel_encode())
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channel, message = channel_backends[DEFAULT_CHANNEL_BACKEND].receive_many([request.response_channel])
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return HttpResponse.channel_decode(message)
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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_backend):
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super(WorkerThread, self).__init__()
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self.channel_backend = channel_backend
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def run(self):
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Worker(channel_backend=self.channel_backend).run()
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