template filter to include protocol and domain in absolute urls

from django import template
import re

register = template.Library()

@register.filter
def siteabsoluteurl(absoluteurl, request):
	"""
		receives an argument in the form of an absolute url <absoluteurl> 
		Returns the same url with all the necessary path information to be used offsite
	"""
	return request.build_absolute_uri(absoluteurl)