from unit.applications.lang.python import TestApplicationPython
class TestForwardedHeader(TestApplicationPython):
prerequisites = {'modules': {'python': 'any'}}
def forwarded_header(self, forwarded):
assert 'success' in self.conf(
{
"127.0.0.1:7081": {
"forwarded": forwarded,
"pass": "applications/forwarded_header",
},
"[::1]:7082": {
"forwarded": forwarded,
"pass": "applications/forwarded_header",
},
},
'listeners',
), 'listeners configure'
def get_fwd(self, sock_type='ipv4', xff=None, xfp=None):
port = 7081 if sock_type == 'ipv4' else 7082
headers = {'Connection': 'close'}
if xff is not None:
headers['X-Forwarded-For'] = xff
if xfp is not None:
headers['X-Forwarded-Proto'] = xfp
return self.get(sock_type=sock_type, port=port, headers=headers)[
'headers'
]
def get_addr(self, *args, **kwargs):
return self.get_fwd(*args, **kwargs)['Remote-Addr']
def get_scheme(self, *args, **kwargs):
return self.get_fwd(*args, **kwargs)['Url-Scheme']
def setup_method(self):
self.load('forwarded_header')
def test_forwarded_header_single_ip(self):
self.forwarded_header(
{
'client_ip': 'X-Forwarded-For',
'protocol': 'X-Forwarded-Proto',
'source': '123.123.123.123',
}
)
resp = self.get_fwd(xff='1.1.1.1', xfp='https')
assert resp['Remote-Addr'] == '127.0.0.1', 'both headers addr'
assert resp['Url-Scheme'] == 'http', 'both headers proto'
assert self.get_addr() == '127.0.0.1', 'ipv4 default addr'
assert self.get_addr('ipv6') == '::1', 'ipv6 default addr'
assert self.get_addr(xff='1.1.1.1') == '127.0.0.1', 'bad source'
assert self.get_addr(xff='blah') == '127.0.0.1', 'bad xff'
assert self.get_addr('ipv6', '1.1.1.1') == '::1', 'bad source ipv6'
assert self.get_scheme() == 'http', 'ipv4 default proto'
assert self.get_scheme('ipv6') == 'http', 'ipv6 default proto'
assert self.get_scheme(xfp='https') == 'http', 'bad proto'
assert self.get_scheme(xfp='blah') == 'http', 'bad xfp'
assert self.get_scheme('ipv6', xfp='https') == 'http', 'bad proto ipv6'
self.forwarded_header(
{
'client_ip': 'X-Forwarded-For',
'protocol': 'X-Forwarded-Proto',
'source': '127.0.0.1',
}
)
resp = self.get_fwd(xff='1.1.1.1', xfp='https')
assert resp['Remote-Addr'] == '1.1.1.1', 'both headers addr 2'
assert resp['Url-Scheme'] == 'https', 'both headers proto 2'
assert self.get_addr() == '127.0.0.1', 'ipv4 default addr 2'
assert self.get_addr('ipv6') == '::1', 'ipv6 default addr 2'
assert self.get_addr(xff='1.1.1.1') == '1.1.1.1', 'xff replace'
assert self.get_addr('ipv6', '1.1.1.1') == '::1', 'bad source ipv6 2'
assert self.get_scheme() == 'http', 'ipv4 default proto 2'
assert self.get_scheme('ipv6') == 'http', 'ipv6 default proto 2'
assert self.get_scheme(xfp='https') == 'https', 'xfp replace'
assert self.get_scheme(xfp='on') == 'https', 'xfp replace 2'
assert (
self.get_scheme('ipv6', xfp='https') == 'http'
), 'bad proto ipv6 2'
self.forwarded_header(
{
'client_ip': 'X-Forwarded-For',
'protocol': 'X-Forwarded-Proto',
'source': '!127.0.0.1',
}
)
assert self.get_addr(xff='1.1.1.1') == '127.0.0.1', 'bad source 3'
assert self.get_addr('ipv6', '1.1.1.1') == '1.1.1.1', 'xff replace 2'
assert self.get_scheme(xfp='https') == 'http', 'bad proto 2'
assert self.get_scheme('ipv6', xfp='https') == 'https', 'xfp replace 3'
def test_forwarded_header_ipv4(self):
self.forwarded_header(
{
'client_ip': 'X-Forwarded-For',
'protocol': 'X-Forwarded-Proto',
'source': '127.0.0.1',
}
)
assert (
self.get_addr(xff='8.8.8.8, 84.23.23.11') == '84.23.23.11'
), 'xff replace'
assert (
self.get_addr(xff='8.8.8.8, 84.23.23.11, 127.0.0.1') == '127.0.0.1'
), 'xff replace 2'
assert (
self.get_addr(xff=['8.8.8.8', '127.0.0.1, 10.0.1.1']) == '10.0.1.1'
), 'xff replace multi'
assert self.get_scheme(xfp='http, https') == 'http', 'xfp replace'
assert (
self.get_scheme(xfp='http, https, http') == 'http'
), 'xfp replace 2'
assert (
self.get_scheme(xfp=['http, https', 'http', 'https']) == 'http'
), 'xfp replace multi'
def test_forwarded_header_ipv6(self):
self.forwarded_header(
{
'client_ip': 'X-Forwarded-For',
'protocol': 'X-Forwarded-Proto',
'source': '::1',
}
)
assert self.get_addr(xff='1.1.1.1') == '127.0.0.1', 'bad source ipv4'
for ip in [
'f607:7403:1e4b:6c66:33b2:843f:2517:da27',
'2001:db8:3c4d:15::1a2f:1a2b',
'2001::3c4d:15:1a2f:1a2b',
'::11.22.33.44',
]:
assert self.get_addr('ipv6', ip) == ip, 'replace'
assert self.get_scheme(xfp='https') == 'http', 'bad source ipv4'
for proto in ['http', 'https']:
assert self.get_scheme('ipv6', xfp=proto) == proto, 'replace'
def test_forwarded_header_recursive(self):
self.forwarded_header(
{
'client_ip': 'X-Forwarded-For',
'recursive': True,
'source': ['127.0.0.1', '10.50.0.17', '10.5.2.1'],
}
)
assert self.get_addr(xff='1.1.1.1') == '1.1.1.1', 'xff chain'
assert (
self.get_addr(xff='1.1.1.1, 10.5.2.1') == '1.1.1.1'
), 'xff chain 2'
assert (
self.get_addr(xff='8.8.8.8, 1.1.1.1, 10.5.2.1') == '1.1.1.1'
), 'xff chain 3'
assert (
self.get_addr(xff='10.50.0.17, 10.5.2.1, 10.5.2.1') == '10.50.0.17'
), 'xff chain 4'
assert (
self.get_addr(xff=['8.8.8.8', '1.1.1.1, 127.0.0.1']) == '1.1.1.1'
), 'xff replace multi'
assert (
self.get_addr(xff=['8.8.8.8', '1.1.1.1, 127.0.0.1', '10.5.2.1'])
== '1.1.1.1'
), 'xff replace multi 2'
assert (
self.get_addr(xff=['10.5.2.1', '10.50.0.17, 1.1.1.1', '10.5.2.1'])
== '1.1.1.1'
), 'xff replace multi 3'
assert (
self.get_addr(
xff='8.8.8.8, 2001:db8:3c4d:15::1a2f:1a2b, 127.0.0.1'
)
== '2001:db8:3c4d:15::1a2f:1a2b'
), 'xff chain ipv6'
def test_forwarded_header_case_insensitive(self):
self.forwarded_header(
{
'client_ip': 'x-forwarded-for',
'protocol': 'x-forwarded-proto',
'source': '127.0.0.1',
}
)
assert self.get_addr() == '127.0.0.1', 'ipv4 default addr'
assert self.get_addr('ipv6') == '::1', 'ipv6 default addr'
assert self.get_addr(xff='1.1.1.1') == '1.1.1.1', 'replace'
assert self.get_scheme() == 'http', 'ipv4 default proto'
assert self.get_scheme('ipv6') == 'http', 'ipv6 default proto'
assert self.get_scheme(xfp='https') == 'https', 'replace 1'
assert self.get_scheme(xfp='oN') == 'https', 'replace 2'
def test_forwarded_header_source_empty(self):
self.forwarded_header(
{
'client_ip': 'X-Forwarded-For',
'protocol': 'X-Forwarded-Proto',
'source': [],
}
)
assert self.get_addr(xff='1.1.1.1') == '127.0.0.1', 'empty source xff'
assert self.get_scheme(xfp='https') == 'http', 'empty source xfp'
def test_forwarded_header_source_range(self):
self.forwarded_header(
{
'client_ip': 'X-Forwarded-For',
'protocol': 'X-Forwarded-Proto',
'source': '127.0.0.0-127.0.0.1',
}
)
assert self.get_addr(xff='1.1.1.1') == '1.1.1.1', 'source range'
assert self.get_addr('ipv6', '1.1.1.1') == '::1', 'source range 2'
def test_forwarded_header_invalid(self):
assert 'error' in self.conf(
{
"127.0.0.1:7081": {
"forwarded": {"source": '127.0.0.1'},
"pass": "applications/forwarded_header",
}
},
'listeners',
), 'invalid forward'
def check_invalid_source(source):
assert 'error' in self.conf(
{
"127.0.0.1:7081": {
"forwarded": {
"client_ip": "X-Forwarded-For",
"source": source,
},
"pass": "applications/forwarded_header",
}
},
'listeners',
), 'invalid source'
check_invalid_source(None)
check_invalid_source('a')
check_invalid_source(['a'])
