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from unittest import TestCase
from twisted.web.http_headers import Headers
from daphne.utils import parse_x_forwarded_for
class TestXForwardedForHttpParsing(TestCase):
"""
Tests that the parse_x_forwarded_for util correctly parses twisted Header.
"""
def test_basic(self):
headers = Headers(
{
b"X-Forwarded-For": [b"10.1.2.3"],
b"X-Forwarded-Port": [b"1234"],
b"X-Forwarded-Proto": [b"https"],
}
)
result = parse_x_forwarded_for(headers)
self.assertEqual(result, (["10.1.2.3", 1234], "https"))
self.assertIsInstance(result[0][0], str)
self.assertIsInstance(result[1], str)
def test_address_only(self):
headers = Headers({b"X-Forwarded-For": [b"10.1.2.3"]})
self.assertEqual(parse_x_forwarded_for(headers), (["10.1.2.3", 0], None))
def test_v6_address(self):
headers = Headers({b"X-Forwarded-For": [b"1043::a321:0001, 10.0.5.6"]})
self.assertEqual(parse_x_forwarded_for(headers), (["1043::a321:0001", 0], None))
def test_multiple_proxys(self):
headers = Headers({b"X-Forwarded-For": [b"10.1.2.3, 10.1.2.4"]})
self.assertEqual(parse_x_forwarded_for(headers), (["10.1.2.3", 0], None))
def test_original(self):
headers = Headers({})
self.assertEqual(
parse_x_forwarded_for(headers, original_addr=["127.0.0.1", 80]),
(["127.0.0.1", 80], None),
)
def test_no_original(self):
headers = Headers({})
self.assertEqual(parse_x_forwarded_for(headers), (None, None))
class TestXForwardedForWsParsing(TestCase):
"""
Tests that the parse_x_forwarded_for util correctly parses dict headers.
"""
def test_basic(self):
headers = {
b"X-Forwarded-For": b"10.1.2.3",
b"X-Forwarded-Port": b"1234",
b"X-Forwarded-Proto": b"https",
}
self.assertEqual(parse_x_forwarded_for(headers), (["10.1.2.3", 1234], "https"))
def test_address_only(self):
headers = {b"X-Forwarded-For": b"10.1.2.3"}
self.assertEqual(parse_x_forwarded_for(headers), (["10.1.2.3", 0], None))
def test_v6_address(self):
headers = {b"X-Forwarded-For": [b"1043::a321:0001, 10.0.5.6"]}
self.assertEqual(parse_x_forwarded_for(headers), (["1043::a321:0001", 0], None))
def test_multiple_proxies(self):
headers = {b"X-Forwarded-For": b"10.1.2.3, 10.1.2.4"}
self.assertEqual(parse_x_forwarded_for(headers), (["10.1.2.3", 0], None))
def test_original(self):
headers = {}
self.assertEqual(
parse_x_forwarded_for(headers, original_addr=["127.0.0.1", 80]),
(["127.0.0.1", 80], None),
)
def test_no_original(self):
headers = {}
self.assertEqual(parse_x_forwarded_for(headers), (None, None))
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