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Standalone View

				from typing import Optional
	import re			import re

				from django.http import HttpRequest

	IPV4_WITH_PORT = re.compile(r"([0-9]+\.[0-9]+\.[0-9]+\.[0-9]+):[0-9]+")			IPV4_WITH_PORT = re.compile(r"([0-9]+\.[0-9]+\.[0-9]+\.[0-9]+):[0-9]+")
	"""Regexp matching an IPv4 address with a port number."""			"""Regexp matching an IPv4 address with a port number."""

	IPV6_WITH_PORT = re.compile(r"\[([0-9:]+)\]:[0-9]+")			IPV6_WITH_PORT = re.compile(r"\[([0-9:]+)\]:[0-9]+")
	"""Regexp matching an IPv6 address with a port number."""			"""Regexp matching an IPv6 address with a port number."""


	def get_client_ip(request):			def get_client_ip(request: HttpRequest) -> str:
	"""Returns the IP of the request, accounting for the possibility of being			"""Returns the IP of the request, accounting for the possibility of being
	behind a proxy.			behind a proxy.
	"""			"""
	x_forwarded_for = request.META.get('HTTP_X_FORWARDED_FOR', None)			x_forwarded_for: Optional[str] = request.META.get('HTTP_X_FORWARDED_FOR', None)
	if x_forwarded_for:			if x_forwarded_for:
	# X_FORWARDED_FOR returns client1, proxy1, proxy2,...			# X_FORWARDED_FOR returns client1, proxy1, proxy2,...
	remote_addr = x_forwarded_for.split(', ', 1)[0].strip()			remote_addr = x_forwarded_for.split(', ', 1)[0].strip()
	return _remove_port_nr(remote_addr)			return _remove_port_nr(remote_addr)

	remote_addr = request.META.get('REMOTE_ADDR', '')			remote_addr = request.META.get('REMOTE_ADDR', '')
	if not remote_addr:			if not remote_addr:
	return ''			return ''
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