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import functools
import unittest
from collections import namedtuple
from urllib3.poolmanager import (
_default_key_normalizer,
HTTPPoolKey,
HTTPSPoolKey,
key_fn_by_scheme,
PoolManager,
SSL_KEYWORDS,
)
from urllib3 import connection_from_url
from urllib3.exceptions import (
ClosedPoolError,
LocationValueError,
)
from urllib3.util import retry, timeout
class TestPoolManager(unittest.TestCase):
def test_same_url(self):
# Convince ourselves that normally we don't get the same object
conn1 = connection_from_url('http://localhost:8081/foo')
conn2 = connection_from_url('http://localhost:8081/bar')
self.assertNotEqual(conn1, conn2)
# Now try again using the PoolManager
p = PoolManager(1)
conn1 = p.connection_from_url('http://localhost:8081/foo')
conn2 = p.connection_from_url('http://localhost:8081/bar')
self.assertEqual(conn1, conn2)
def test_many_urls(self):
urls = [
"http://localhost:8081/foo",
"http://www.google.com/mail",
"http://localhost:8081/bar",
"https://www.google.com/",
"https://www.google.com/mail",
"http://yahoo.com",
"http://bing.com",
"http://yahoo.com/",
]
connections = set()
p = PoolManager(10)
for url in urls:
conn = p.connection_from_url(url)
connections.add(conn)
self.assertEqual(len(connections), 5)
def test_manager_clear(self):
p = PoolManager(5)
conn_pool = p.connection_from_url('http://google.com')
self.assertEqual(len(p.pools), 1)
conn = conn_pool._get_conn()
p.clear()
self.assertEqual(len(p.pools), 0)
self.assertRaises(ClosedPoolError, conn_pool._get_conn)
conn_pool._put_conn(conn)
self.assertRaises(ClosedPoolError, conn_pool._get_conn)
self.assertEqual(len(p.pools), 0)
def test_nohost(self):
p = PoolManager(5)
self.assertRaises(LocationValueError, p.connection_from_url, 'http://@')
self.assertRaises(LocationValueError, p.connection_from_url, None)
def test_contextmanager(self):
with PoolManager(1) as p:
conn_pool = p.connection_from_url('http://google.com')
self.assertEqual(len(p.pools), 1)
conn = conn_pool._get_conn()
self.assertEqual(len(p.pools), 0)
self.assertRaises(ClosedPoolError, conn_pool._get_conn)
conn_pool._put_conn(conn)
self.assertRaises(ClosedPoolError, conn_pool._get_conn)
self.assertEqual(len(p.pools), 0)
def test_http_pool_key_fields(self):
"""Assert the HTTPPoolKey fields are honored when selecting a pool."""
connection_pool_kw = {
'timeout': timeout.Timeout(3.14),
'retries': retry.Retry(total=6, connect=2),
'block': True,
'strict': True,
'source_address': '127.0.0.1',
}
p = PoolManager()
conn_pools = [
p.connection_from_url('http://example.com/'),
p.connection_from_url('http://example.com:8000/'),
p.connection_from_url('http://other.example.com/'),
]
for key, value in connection_pool_kw.items():
p.connection_pool_kw[key] = value
conn_pools.append(p.connection_from_url('http://example.com/'))
self.assertTrue(
all(
x is not y
for i, x in enumerate(conn_pools)
for j, y in enumerate(conn_pools)
if i != j
)
)
self.assertTrue(
all(
isinstance(key, HTTPPoolKey)
for key in p.pools.keys())
)
def test_http_pool_key_extra_kwargs(self):
"""Assert non-HTTPPoolKey fields are ignored when selecting a pool."""
p = PoolManager()
conn_pool = p.connection_from_url('http://example.com/')
p.connection_pool_kw['some_kwarg'] = 'that should be ignored'
other_conn_pool = p.connection_from_url('http://example.com/')
self.assertTrue(conn_pool is other_conn_pool)
def test_http_pool_key_https_kwargs(self):
"""Assert HTTPSPoolKey fields are ignored when selecting a HTTP pool."""
p = PoolManager()
conn_pool = p.connection_from_url('http://example.com/')
for key in SSL_KEYWORDS:
p.connection_pool_kw[key] = 'this should be ignored'
other_conn_pool = p.connection_from_url('http://example.com/')
self.assertTrue(conn_pool is other_conn_pool)
def test_https_pool_key_fields(self):
"""Assert the HTTPSPoolKey fields are honored when selecting a pool."""
connection_pool_kw = {
'timeout': timeout.Timeout(3.14),
'retries': retry.Retry(total=6, connect=2),
'block': True,
'strict': True,
'source_address': '127.0.0.1',
'key_file': '/root/totally_legit.key',
'cert_file': '/root/totally_legit.crt',
'cert_reqs': 'CERT_REQUIRED',
'ca_certs': '/root/path_to_pem',
'ssl_version': 'SSLv23_METHOD',
}
p = PoolManager()
conn_pools = [
p.connection_from_url('https://example.com/'),
p.connection_from_url('https://example.com:4333/'),
p.connection_from_url('https://other.example.com/'),
]
# Asking for a connection pool with the same key should give us an
# existing pool.
dup_pools = []
for key, value in connection_pool_kw.items():
p.connection_pool_kw[key] = value
conn_pools.append(p.connection_from_url('https://example.com/'))
dup_pools.append(p.connection_from_url('https://example.com/'))
self.assertTrue(
all(
x is not y
for i, x in enumerate(conn_pools)
for j, y in enumerate(conn_pools)
if i != j
)
)
self.assertTrue(all(pool in conn_pools for pool in dup_pools))
self.assertTrue(
all(
isinstance(key, HTTPSPoolKey)
for key in p.pools.keys())
)
def test_https_pool_key_extra_kwargs(self):
"""Assert non-HTTPSPoolKey fields are ignored when selecting a pool."""
p = PoolManager()
conn_pool = p.connection_from_url('https://example.com/')
p.connection_pool_kw['some_kwarg'] = 'that should be ignored'
other_conn_pool = p.connection_from_url('https://example.com/')
self.assertTrue(conn_pool is other_conn_pool)
def test_default_pool_key_funcs_copy(self):
"""Assert each PoolManager gets a copy of ``pool_keys_by_scheme``."""
p = PoolManager()
self.assertEqual(p.key_fn_by_scheme, p.key_fn_by_scheme)
self.assertFalse(p.key_fn_by_scheme is key_fn_by_scheme)
def test_pools_keyed_with_from_host(self):
"""Assert pools are still keyed correctly with connection_from_host."""
ssl_kw = {
'key_file': '/root/totally_legit.key',
'cert_file': '/root/totally_legit.crt',
'cert_reqs': 'CERT_REQUIRED',
'ca_certs': '/root/path_to_pem',
'ssl_version': 'SSLv23_METHOD',
}
p = PoolManager(5, **ssl_kw)
conns = []
conns.append(
p.connection_from_host('example.com', 443, scheme='https')
)
for k in ssl_kw:
p.connection_pool_kw[k] = 'newval'
conns.append(
p.connection_from_host('example.com', 443, scheme='https')
)
self.assertTrue(
all(
x is not y
for i, x in enumerate(conns)
for j, y in enumerate(conns)
if i != j
)
)
def test_https_connection_from_url_case_insensitive(self):
"""Assert scheme case is ignored when pooling HTTPS connections."""
p = PoolManager()
pool = p.connection_from_url('https://example.com/')
other_pool = p.connection_from_url('HTTPS://EXAMPLE.COM/')
self.assertEqual(1, len(p.pools))
self.assertTrue(pool is other_pool)
self.assertTrue(all(isinstance(key, HTTPSPoolKey) for key in p.pools.keys()))
def test_https_connection_from_host_case_insensitive(self):
"""Assert scheme case is ignored when getting the https key class."""
p = PoolManager()
pool = p.connection_from_host('example.com', scheme='https')
other_pool = p.connection_from_host('EXAMPLE.COM', scheme='HTTPS')
self.assertEqual(1, len(p.pools))
self.assertTrue(pool is other_pool)
self.assertTrue(all(isinstance(key, HTTPSPoolKey) for key in p.pools.keys()))
def test_https_connection_from_context_case_insensitive(self):
"""Assert scheme case is ignored when getting the https key class."""
p = PoolManager()
context = {'scheme': 'https', 'host': 'example.com', 'port': '443'}
other_context = {'scheme': 'HTTPS', 'host': 'EXAMPLE.COM', 'port': '443'}
pool = p.connection_from_context(context)
other_pool = p.connection_from_context(other_context)
self.assertEqual(1, len(p.pools))
self.assertTrue(pool is other_pool)
self.assertTrue(all(isinstance(key, HTTPSPoolKey) for key in p.pools.keys()))
def test_http_connection_from_url_case_insensitive(self):
"""Assert scheme case is ignored when pooling HTTP connections."""
p = PoolManager()
pool = p.connection_from_url('http://example.com/')
other_pool = p.connection_from_url('HTTP://EXAMPLE.COM/')
self.assertEqual(1, len(p.pools))
self.assertTrue(pool is other_pool)
self.assertTrue(all(isinstance(key, HTTPPoolKey) for key in p.pools.keys()))
def test_http_connection_from_host_case_insensitive(self):
"""Assert scheme case is ignored when getting the https key class."""
p = PoolManager()
pool = p.connection_from_host('example.com', scheme='http')
other_pool = p.connection_from_host('EXAMPLE.COM', scheme='HTTP')
self.assertEqual(1, len(p.pools))
self.assertTrue(pool is other_pool)
self.assertTrue(all(isinstance(key, HTTPPoolKey) for key in p.pools.keys()))
def test_http_connection_from_context_case_insensitive(self):
"""Assert scheme case is ignored when getting the https key class."""
p = PoolManager()
context = {'scheme': 'http', 'host': 'example.com', 'port': '8080'}
other_context = {'scheme': 'HTTP', 'host': 'EXAMPLE.COM', 'port': '8080'}
pool = p.connection_from_context(context)
other_pool = p.connection_from_context(other_context)
self.assertEqual(1, len(p.pools))
self.assertTrue(pool is other_pool)
self.assertTrue(all(isinstance(key, HTTPPoolKey) for key in p.pools.keys()))
def test_custom_pool_key(self):
"""Assert it is possible to define addition pool key fields."""
custom_key = namedtuple('CustomKey', HTTPPoolKey._fields + ('my_field',))
p = PoolManager(10, my_field='barley')
p.key_fn_by_scheme['http'] = functools.partial(_default_key_normalizer, custom_key)
p.connection_from_url('http://example.com')
p.connection_pool_kw['my_field'] = 'wheat'
p.connection_from_url('http://example.com')
self.assertEqual(2, len(p.pools))
if __name__ == '__main__':
unittest.main()
|
