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import unittest
import json
import socket
from dummyserver.testcase import HTTPDummyProxyTestCase
from dummyserver.server import (
DEFAULT_CA, DEFAULT_CA_BAD, get_unreachable_address)
from urllib3.poolmanager import proxy_from_url, ProxyManager
from urllib3.exceptions import MaxRetryError, SSLError, ProxyError
from urllib3.connectionpool import connection_from_url, VerifiedHTTPSConnection
class TestHTTPProxyManager(HTTPDummyProxyTestCase):
def setUp(self):
self.http_url = 'http://%s:%d' % (self.http_host, self.http_port)
self.http_url_alt = 'http://%s:%d' % (self.http_host_alt,
self.http_port)
self.https_url = 'https://%s:%d' % (self.https_host, self.https_port)
self.https_url_alt = 'https://%s:%d' % (self.https_host_alt,
self.https_port)
self.proxy_url = 'http://%s:%d' % (self.proxy_host, self.proxy_port)
def test_basic_proxy(self):
http = proxy_from_url(self.proxy_url)
r = http.request('GET', '%s/' % self.http_url)
self.assertEqual(r.status, 200)
r = http.request('GET', '%s/' % self.https_url)
self.assertEqual(r.status, 200)
def test_nagle_proxy(self):
""" Test that proxy connections do not have TCP_NODELAY turned on """
http = proxy_from_url(self.proxy_url)
hc2 = http.connection_from_host(self.http_host, self.http_port)
conn = hc2._get_conn()
hc2._make_request(conn, 'GET', '/')
tcp_nodelay_setting = conn.sock.getsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY)
self.assertEqual(tcp_nodelay_setting, 0,
("Expected TCP_NODELAY for proxies to be set "
"to zero, instead was %s" % tcp_nodelay_setting))
def test_proxy_conn_fail(self):
host, port = get_unreachable_address()
http = proxy_from_url('http://%s:%s/' % (host, port), retries=1)
self.assertRaises(MaxRetryError, http.request, 'GET',
'%s/' % self.https_url)
self.assertRaises(MaxRetryError, http.request, 'GET',
'%s/' % self.http_url)
try:
http.request('GET', '%s/' % self.http_url)
self.fail("Failed to raise retry error.")
except MaxRetryError as e:
self.assertEqual(type(e.reason), ProxyError)
def test_oldapi(self):
http = ProxyManager(connection_from_url(self.proxy_url))
r = http.request('GET', '%s/' % self.http_url)
self.assertEqual(r.status, 200)
r = http.request('GET', '%s/' % self.https_url)
self.assertEqual(r.status, 200)
def test_proxy_verified(self):
http = proxy_from_url(self.proxy_url, cert_reqs='REQUIRED',
ca_certs=DEFAULT_CA_BAD)
https_pool = http._new_pool('https', self.https_host,
self.https_port)
try:
https_pool.request('GET', '/')
self.fail("Didn't raise SSL error with wrong CA")
except SSLError as e:
self.assertTrue('certificate verify failed' in str(e),
"Expected 'certificate verify failed',"
"instead got: %r" % e)
http = proxy_from_url(self.proxy_url, cert_reqs='REQUIRED',
ca_certs=DEFAULT_CA)
https_pool = http._new_pool('https', self.https_host,
self.https_port)
conn = https_pool._new_conn()
self.assertEqual(conn.__class__, VerifiedHTTPSConnection)
https_pool.request('GET', '/') # Should succeed without exceptions.
http = proxy_from_url(self.proxy_url, cert_reqs='REQUIRED',
ca_certs=DEFAULT_CA)
https_fail_pool = http._new_pool('https', '127.0.0.1', self.https_port)
try:
https_fail_pool.request('GET', '/')
self.fail("Didn't raise SSL invalid common name")
except SSLError as e:
self.assertTrue("doesn't match" in str(e))
def test_redirect(self):
http = proxy_from_url(self.proxy_url)
r = http.request('GET', '%s/redirect' % self.http_url,
fields={'target': '%s/' % self.http_url},
redirect=False)
self.assertEqual(r.status, 303)
r = http.request('GET', '%s/redirect' % self.http_url,
fields={'target': '%s/' % self.http_url})
self.assertEqual(r.status, 200)
self.assertEqual(r.data, b'Dummy server!')
def test_cross_host_redirect(self):
http = proxy_from_url(self.proxy_url)
cross_host_location = '%s/echo?a=b' % self.http_url_alt
try:
http.request('GET', '%s/redirect' % self.http_url,
fields={'target': cross_host_location},
timeout=0.1, retries=0)
self.fail("We don't want to follow redirects here.")
except MaxRetryError:
pass
r = http.request('GET', '%s/redirect' % self.http_url,
fields={'target': '%s/echo?a=b' % self.http_url_alt},
timeout=0.1, retries=1)
self.assertNotEqual(r._pool.host, self.http_host_alt)
def test_cross_protocol_redirect(self):
http = proxy_from_url(self.proxy_url)
cross_protocol_location = '%s/echo?a=b' % self.https_url
try:
http.request('GET', '%s/redirect' % self.http_url,
fields={'target': cross_protocol_location},
timeout=0.1, retries=0)
self.fail("We don't want to follow redirects here.")
except MaxRetryError:
pass
r = http.request('GET', '%s/redirect' % self.http_url,
fields={'target': '%s/echo?a=b' % self.https_url},
timeout=0.1, retries=1)
self.assertEqual(r._pool.host, self.https_host)
def test_headers(self):
http = proxy_from_url(self.proxy_url,headers={'Foo': 'bar'},
proxy_headers={'Hickory': 'dickory'})
r = http.request_encode_url('GET', '%s/headers' % self.http_url)
returned_headers = json.loads(r.data.decode())
self.assertEqual(returned_headers.get('Foo'), 'bar')
self.assertEqual(returned_headers.get('Hickory'), 'dickory')
self.assertEqual(returned_headers.get('Host'),
'%s:%s'%(self.http_host,self.http_port))
r = http.request_encode_url('GET', '%s/headers' % self.http_url_alt)
returned_headers = json.loads(r.data.decode())
self.assertEqual(returned_headers.get('Foo'), 'bar')
self.assertEqual(returned_headers.get('Hickory'), 'dickory')
self.assertEqual(returned_headers.get('Host'),
'%s:%s'%(self.http_host_alt,self.http_port))
r = http.request_encode_url('GET', '%s/headers' % self.https_url)
returned_headers = json.loads(r.data.decode())
self.assertEqual(returned_headers.get('Foo'), 'bar')
self.assertEqual(returned_headers.get('Hickory'), None)
self.assertEqual(returned_headers.get('Host'),
'%s:%s'%(self.https_host,self.https_port))
r = http.request_encode_url('GET', '%s/headers' % self.https_url_alt)
returned_headers = json.loads(r.data.decode())
self.assertEqual(returned_headers.get('Foo'), 'bar')
self.assertEqual(returned_headers.get('Hickory'), None)
self.assertEqual(returned_headers.get('Host'),
'%s:%s'%(self.https_host_alt,self.https_port))
r = http.request_encode_body('POST', '%s/headers' % self.http_url)
returned_headers = json.loads(r.data.decode())
self.assertEqual(returned_headers.get('Foo'), 'bar')
self.assertEqual(returned_headers.get('Hickory'), 'dickory')
self.assertEqual(returned_headers.get('Host'),
'%s:%s'%(self.http_host,self.http_port))
r = http.request_encode_url('GET', '%s/headers' % self.http_url, headers={'Baz': 'quux'})
returned_headers = json.loads(r.data.decode())
self.assertEqual(returned_headers.get('Foo'), None)
self.assertEqual(returned_headers.get('Baz'), 'quux')
self.assertEqual(returned_headers.get('Hickory'), 'dickory')
self.assertEqual(returned_headers.get('Host'),
'%s:%s'%(self.http_host,self.http_port))
r = http.request_encode_url('GET', '%s/headers' % self.https_url, headers={'Baz': 'quux'})
returned_headers = json.loads(r.data.decode())
self.assertEqual(returned_headers.get('Foo'), None)
self.assertEqual(returned_headers.get('Baz'), 'quux')
self.assertEqual(returned_headers.get('Hickory'), None)
self.assertEqual(returned_headers.get('Host'),
'%s:%s'%(self.https_host,self.https_port))
r = http.request_encode_body('GET', '%s/headers' % self.http_url, headers={'Baz': 'quux'})
returned_headers = json.loads(r.data.decode())
self.assertEqual(returned_headers.get('Foo'), None)
self.assertEqual(returned_headers.get('Baz'), 'quux')
self.assertEqual(returned_headers.get('Hickory'), 'dickory')
self.assertEqual(returned_headers.get('Host'),
'%s:%s'%(self.http_host,self.http_port))
r = http.request_encode_body('GET', '%s/headers' % self.https_url, headers={'Baz': 'quux'})
returned_headers = json.loads(r.data.decode())
self.assertEqual(returned_headers.get('Foo'), None)
self.assertEqual(returned_headers.get('Baz'), 'quux')
self.assertEqual(returned_headers.get('Hickory'), None)
self.assertEqual(returned_headers.get('Host'),
'%s:%s'%(self.https_host,self.https_port))
def test_proxy_pooling(self):
http = proxy_from_url(self.proxy_url)
for x in range(2):
r = http.urlopen('GET', self.http_url)
self.assertEqual(len(http.pools), 1)
for x in range(2):
r = http.urlopen('GET', self.http_url_alt)
self.assertEqual(len(http.pools), 1)
for x in range(2):
r = http.urlopen('GET', self.https_url)
self.assertEqual(len(http.pools), 2)
for x in range(2):
r = http.urlopen('GET', self.https_url_alt)
self.assertEqual(len(http.pools), 3)
def test_proxy_pooling_ext(self):
http = proxy_from_url(self.proxy_url)
hc1 = http.connection_from_url(self.http_url)
hc2 = http.connection_from_host(self.http_host, self.http_port)
hc3 = http.connection_from_url(self.http_url_alt)
hc4 = http.connection_from_host(self.http_host_alt, self.http_port)
self.assertEqual(hc1,hc2)
self.assertEqual(hc2,hc3)
self.assertEqual(hc3,hc4)
sc1 = http.connection_from_url(self.https_url)
sc2 = http.connection_from_host(self.https_host,
self.https_port,scheme='https')
sc3 = http.connection_from_url(self.https_url_alt)
sc4 = http.connection_from_host(self.https_host_alt,
self.https_port,scheme='https')
self.assertEqual(sc1,sc2)
self.assertNotEqual(sc2,sc3)
self.assertEqual(sc3,sc4)
if __name__ == '__main__':
unittest.main()
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