cpython/Lib/test/test_httplib.py
Gregory P. Smith 2cc0223f43
bpo-35925: Skip SSL tests that fail due to weak external certs. (GH-13124)
Modern Linux distros such as Debian Buster have default OpenSSL system
configurations that reject connections to servers with weak certificates
by default.  This causes our test suite run with external networking
resources enabled to skip these tests when they encounter such a failure.

Fixing the network servers is a separate issue.
2019-05-06 17:54:06 -04:00

1955 lines
73 KiB
Python

import errno
from http import client
import io
import itertools
import os
import array
import re
import socket
import threading
import unittest
TestCase = unittest.TestCase
from test import support
here = os.path.dirname(__file__)
# Self-signed cert file for 'localhost'
CERT_localhost = os.path.join(here, 'keycert.pem')
# Self-signed cert file for 'fakehostname'
CERT_fakehostname = os.path.join(here, 'keycert2.pem')
# Self-signed cert file for self-signed.pythontest.net
CERT_selfsigned_pythontestdotnet = os.path.join(here, 'selfsigned_pythontestdotnet.pem')
# constants for testing chunked encoding
chunked_start = (
'HTTP/1.1 200 OK\r\n'
'Transfer-Encoding: chunked\r\n\r\n'
'a\r\n'
'hello worl\r\n'
'3\r\n'
'd! \r\n'
'8\r\n'
'and now \r\n'
'22\r\n'
'for something completely different\r\n'
)
chunked_expected = b'hello world! and now for something completely different'
chunk_extension = ";foo=bar"
last_chunk = "0\r\n"
last_chunk_extended = "0" + chunk_extension + "\r\n"
trailers = "X-Dummy: foo\r\nX-Dumm2: bar\r\n"
chunked_end = "\r\n"
HOST = support.HOST
class FakeSocket:
def __init__(self, text, fileclass=io.BytesIO, host=None, port=None):
if isinstance(text, str):
text = text.encode("ascii")
self.text = text
self.fileclass = fileclass
self.data = b''
self.sendall_calls = 0
self.file_closed = False
self.host = host
self.port = port
def sendall(self, data):
self.sendall_calls += 1
self.data += data
def makefile(self, mode, bufsize=None):
if mode != 'r' and mode != 'rb':
raise client.UnimplementedFileMode()
# keep the file around so we can check how much was read from it
self.file = self.fileclass(self.text)
self.file.close = self.file_close #nerf close ()
return self.file
def file_close(self):
self.file_closed = True
def close(self):
pass
def setsockopt(self, level, optname, value):
pass
class EPipeSocket(FakeSocket):
def __init__(self, text, pipe_trigger):
# When sendall() is called with pipe_trigger, raise EPIPE.
FakeSocket.__init__(self, text)
self.pipe_trigger = pipe_trigger
def sendall(self, data):
if self.pipe_trigger in data:
raise OSError(errno.EPIPE, "gotcha")
self.data += data
def close(self):
pass
class NoEOFBytesIO(io.BytesIO):
"""Like BytesIO, but raises AssertionError on EOF.
This is used below to test that http.client doesn't try to read
more from the underlying file than it should.
"""
def read(self, n=-1):
data = io.BytesIO.read(self, n)
if data == b'':
raise AssertionError('caller tried to read past EOF')
return data
def readline(self, length=None):
data = io.BytesIO.readline(self, length)
if data == b'':
raise AssertionError('caller tried to read past EOF')
return data
class FakeSocketHTTPConnection(client.HTTPConnection):
"""HTTPConnection subclass using FakeSocket; counts connect() calls"""
def __init__(self, *args):
self.connections = 0
super().__init__('example.com')
self.fake_socket_args = args
self._create_connection = self.create_connection
def connect(self):
"""Count the number of times connect() is invoked"""
self.connections += 1
return super().connect()
def create_connection(self, *pos, **kw):
return FakeSocket(*self.fake_socket_args)
class HeaderTests(TestCase):
def test_auto_headers(self):
# Some headers are added automatically, but should not be added by
# .request() if they are explicitly set.
class HeaderCountingBuffer(list):
def __init__(self):
self.count = {}
def append(self, item):
kv = item.split(b':')
if len(kv) > 1:
# item is a 'Key: Value' header string
lcKey = kv[0].decode('ascii').lower()
self.count.setdefault(lcKey, 0)
self.count[lcKey] += 1
list.append(self, item)
for explicit_header in True, False:
for header in 'Content-length', 'Host', 'Accept-encoding':
conn = client.HTTPConnection('example.com')
conn.sock = FakeSocket('blahblahblah')
conn._buffer = HeaderCountingBuffer()
body = 'spamspamspam'
headers = {}
if explicit_header:
headers[header] = str(len(body))
conn.request('POST', '/', body, headers)
self.assertEqual(conn._buffer.count[header.lower()], 1)
def test_content_length_0(self):
class ContentLengthChecker(list):
def __init__(self):
list.__init__(self)
self.content_length = None
def append(self, item):
kv = item.split(b':', 1)
if len(kv) > 1 and kv[0].lower() == b'content-length':
self.content_length = kv[1].strip()
list.append(self, item)
# Here, we're testing that methods expecting a body get a
# content-length set to zero if the body is empty (either None or '')
bodies = (None, '')
methods_with_body = ('PUT', 'POST', 'PATCH')
for method, body in itertools.product(methods_with_body, bodies):
conn = client.HTTPConnection('example.com')
conn.sock = FakeSocket(None)
conn._buffer = ContentLengthChecker()
conn.request(method, '/', body)
self.assertEqual(
conn._buffer.content_length, b'0',
'Header Content-Length incorrect on {}'.format(method)
)
# For these methods, we make sure that content-length is not set when
# the body is None because it might cause unexpected behaviour on the
# server.
methods_without_body = (
'GET', 'CONNECT', 'DELETE', 'HEAD', 'OPTIONS', 'TRACE',
)
for method in methods_without_body:
conn = client.HTTPConnection('example.com')
conn.sock = FakeSocket(None)
conn._buffer = ContentLengthChecker()
conn.request(method, '/', None)
self.assertEqual(
conn._buffer.content_length, None,
'Header Content-Length set for empty body on {}'.format(method)
)
# If the body is set to '', that's considered to be "present but
# empty" rather than "missing", so content length would be set, even
# for methods that don't expect a body.
for method in methods_without_body:
conn = client.HTTPConnection('example.com')
conn.sock = FakeSocket(None)
conn._buffer = ContentLengthChecker()
conn.request(method, '/', '')
self.assertEqual(
conn._buffer.content_length, b'0',
'Header Content-Length incorrect on {}'.format(method)
)
# If the body is set, make sure Content-Length is set.
for method in itertools.chain(methods_without_body, methods_with_body):
conn = client.HTTPConnection('example.com')
conn.sock = FakeSocket(None)
conn._buffer = ContentLengthChecker()
conn.request(method, '/', ' ')
self.assertEqual(
conn._buffer.content_length, b'1',
'Header Content-Length incorrect on {}'.format(method)
)
def test_putheader(self):
conn = client.HTTPConnection('example.com')
conn.sock = FakeSocket(None)
conn.putrequest('GET','/')
conn.putheader('Content-length', 42)
self.assertIn(b'Content-length: 42', conn._buffer)
conn.putheader('Foo', ' bar ')
self.assertIn(b'Foo: bar ', conn._buffer)
conn.putheader('Bar', '\tbaz\t')
self.assertIn(b'Bar: \tbaz\t', conn._buffer)
conn.putheader('Authorization', 'Bearer mytoken')
self.assertIn(b'Authorization: Bearer mytoken', conn._buffer)
conn.putheader('IterHeader', 'IterA', 'IterB')
self.assertIn(b'IterHeader: IterA\r\n\tIterB', conn._buffer)
conn.putheader('LatinHeader', b'\xFF')
self.assertIn(b'LatinHeader: \xFF', conn._buffer)
conn.putheader('Utf8Header', b'\xc3\x80')
self.assertIn(b'Utf8Header: \xc3\x80', conn._buffer)
conn.putheader('C1-Control', b'next\x85line')
self.assertIn(b'C1-Control: next\x85line', conn._buffer)
conn.putheader('Embedded-Fold-Space', 'is\r\n allowed')
self.assertIn(b'Embedded-Fold-Space: is\r\n allowed', conn._buffer)
conn.putheader('Embedded-Fold-Tab', 'is\r\n\tallowed')
self.assertIn(b'Embedded-Fold-Tab: is\r\n\tallowed', conn._buffer)
conn.putheader('Key Space', 'value')
self.assertIn(b'Key Space: value', conn._buffer)
conn.putheader('KeySpace ', 'value')
self.assertIn(b'KeySpace : value', conn._buffer)
conn.putheader(b'Nonbreak\xa0Space', 'value')
self.assertIn(b'Nonbreak\xa0Space: value', conn._buffer)
conn.putheader(b'\xa0NonbreakSpace', 'value')
self.assertIn(b'\xa0NonbreakSpace: value', conn._buffer)
def test_ipv6host_header(self):
# Default host header on IPv6 transaction should be wrapped by [] if
# it is an IPv6 address
expected = b'GET /foo HTTP/1.1\r\nHost: [2001::]:81\r\n' \
b'Accept-Encoding: identity\r\n\r\n'
conn = client.HTTPConnection('[2001::]:81')
sock = FakeSocket('')
conn.sock = sock
conn.request('GET', '/foo')
self.assertTrue(sock.data.startswith(expected))
expected = b'GET /foo HTTP/1.1\r\nHost: [2001:102A::]\r\n' \
b'Accept-Encoding: identity\r\n\r\n'
conn = client.HTTPConnection('[2001:102A::]')
sock = FakeSocket('')
conn.sock = sock
conn.request('GET', '/foo')
self.assertTrue(sock.data.startswith(expected))
def test_malformed_headers_coped_with(self):
# Issue 19996
body = "HTTP/1.1 200 OK\r\nFirst: val\r\n: nval\r\nSecond: val\r\n\r\n"
sock = FakeSocket(body)
resp = client.HTTPResponse(sock)
resp.begin()
self.assertEqual(resp.getheader('First'), 'val')
self.assertEqual(resp.getheader('Second'), 'val')
def test_parse_all_octets(self):
# Ensure no valid header field octet breaks the parser
body = (
b'HTTP/1.1 200 OK\r\n'
b"!#$%&'*+-.^_`|~: value\r\n" # Special token characters
b'VCHAR: ' + bytes(range(0x21, 0x7E + 1)) + b'\r\n'
b'obs-text: ' + bytes(range(0x80, 0xFF + 1)) + b'\r\n'
b'obs-fold: text\r\n'
b' folded with space\r\n'
b'\tfolded with tab\r\n'
b'Content-Length: 0\r\n'
b'\r\n'
)
sock = FakeSocket(body)
resp = client.HTTPResponse(sock)
resp.begin()
self.assertEqual(resp.getheader('Content-Length'), '0')
self.assertEqual(resp.msg['Content-Length'], '0')
self.assertEqual(resp.getheader("!#$%&'*+-.^_`|~"), 'value')
self.assertEqual(resp.msg["!#$%&'*+-.^_`|~"], 'value')
vchar = ''.join(map(chr, range(0x21, 0x7E + 1)))
self.assertEqual(resp.getheader('VCHAR'), vchar)
self.assertEqual(resp.msg['VCHAR'], vchar)
self.assertIsNotNone(resp.getheader('obs-text'))
self.assertIn('obs-text', resp.msg)
for folded in (resp.getheader('obs-fold'), resp.msg['obs-fold']):
self.assertTrue(folded.startswith('text'))
self.assertIn(' folded with space', folded)
self.assertTrue(folded.endswith('folded with tab'))
def test_invalid_headers(self):
conn = client.HTTPConnection('example.com')
conn.sock = FakeSocket('')
conn.putrequest('GET', '/')
# http://tools.ietf.org/html/rfc7230#section-3.2.4, whitespace is no
# longer allowed in header names
cases = (
(b'Invalid\r\nName', b'ValidValue'),
(b'Invalid\rName', b'ValidValue'),
(b'Invalid\nName', b'ValidValue'),
(b'\r\nInvalidName', b'ValidValue'),
(b'\rInvalidName', b'ValidValue'),
(b'\nInvalidName', b'ValidValue'),
(b' InvalidName', b'ValidValue'),
(b'\tInvalidName', b'ValidValue'),
(b'Invalid:Name', b'ValidValue'),
(b':InvalidName', b'ValidValue'),
(b'ValidName', b'Invalid\r\nValue'),
(b'ValidName', b'Invalid\rValue'),
(b'ValidName', b'Invalid\nValue'),
(b'ValidName', b'InvalidValue\r\n'),
(b'ValidName', b'InvalidValue\r'),
(b'ValidName', b'InvalidValue\n'),
)
for name, value in cases:
with self.subTest((name, value)):
with self.assertRaisesRegex(ValueError, 'Invalid header'):
conn.putheader(name, value)
def test_headers_debuglevel(self):
body = (
b'HTTP/1.1 200 OK\r\n'
b'First: val\r\n'
b'Second: val1\r\n'
b'Second: val2\r\n'
)
sock = FakeSocket(body)
resp = client.HTTPResponse(sock, debuglevel=1)
with support.captured_stdout() as output:
resp.begin()
lines = output.getvalue().splitlines()
self.assertEqual(lines[0], "reply: 'HTTP/1.1 200 OK\\r\\n'")
self.assertEqual(lines[1], "header: First: val")
self.assertEqual(lines[2], "header: Second: val1")
self.assertEqual(lines[3], "header: Second: val2")
class TransferEncodingTest(TestCase):
expected_body = b"It's just a flesh wound"
def test_endheaders_chunked(self):
conn = client.HTTPConnection('example.com')
conn.sock = FakeSocket(b'')
conn.putrequest('POST', '/')
conn.endheaders(self._make_body(), encode_chunked=True)
_, _, body = self._parse_request(conn.sock.data)
body = self._parse_chunked(body)
self.assertEqual(body, self.expected_body)
def test_explicit_headers(self):
# explicit chunked
conn = client.HTTPConnection('example.com')
conn.sock = FakeSocket(b'')
# this shouldn't actually be automatically chunk-encoded because the
# calling code has explicitly stated that it's taking care of it
conn.request(
'POST', '/', self._make_body(), {'Transfer-Encoding': 'chunked'})
_, headers, body = self._parse_request(conn.sock.data)
self.assertNotIn('content-length', [k.lower() for k in headers.keys()])
self.assertEqual(headers['Transfer-Encoding'], 'chunked')
self.assertEqual(body, self.expected_body)
# explicit chunked, string body
conn = client.HTTPConnection('example.com')
conn.sock = FakeSocket(b'')
conn.request(
'POST', '/', self.expected_body.decode('latin-1'),
{'Transfer-Encoding': 'chunked'})
_, headers, body = self._parse_request(conn.sock.data)
self.assertNotIn('content-length', [k.lower() for k in headers.keys()])
self.assertEqual(headers['Transfer-Encoding'], 'chunked')
self.assertEqual(body, self.expected_body)
# User-specified TE, but request() does the chunk encoding
conn = client.HTTPConnection('example.com')
conn.sock = FakeSocket(b'')
conn.request('POST', '/',
headers={'Transfer-Encoding': 'gzip, chunked'},
encode_chunked=True,
body=self._make_body())
_, headers, body = self._parse_request(conn.sock.data)
self.assertNotIn('content-length', [k.lower() for k in headers])
self.assertEqual(headers['Transfer-Encoding'], 'gzip, chunked')
self.assertEqual(self._parse_chunked(body), self.expected_body)
def test_request(self):
for empty_lines in (False, True,):
conn = client.HTTPConnection('example.com')
conn.sock = FakeSocket(b'')
conn.request(
'POST', '/', self._make_body(empty_lines=empty_lines))
_, headers, body = self._parse_request(conn.sock.data)
body = self._parse_chunked(body)
self.assertEqual(body, self.expected_body)
self.assertEqual(headers['Transfer-Encoding'], 'chunked')
# Content-Length and Transfer-Encoding SHOULD not be sent in the
# same request
self.assertNotIn('content-length', [k.lower() for k in headers])
def test_empty_body(self):
# Zero-length iterable should be treated like any other iterable
conn = client.HTTPConnection('example.com')
conn.sock = FakeSocket(b'')
conn.request('POST', '/', ())
_, headers, body = self._parse_request(conn.sock.data)
self.assertEqual(headers['Transfer-Encoding'], 'chunked')
self.assertNotIn('content-length', [k.lower() for k in headers])
self.assertEqual(body, b"0\r\n\r\n")
def _make_body(self, empty_lines=False):
lines = self.expected_body.split(b' ')
for idx, line in enumerate(lines):
# for testing handling empty lines
if empty_lines and idx % 2:
yield b''
if idx < len(lines) - 1:
yield line + b' '
else:
yield line
def _parse_request(self, data):
lines = data.split(b'\r\n')
request = lines[0]
headers = {}
n = 1
while n < len(lines) and len(lines[n]) > 0:
key, val = lines[n].split(b':')
key = key.decode('latin-1').strip()
headers[key] = val.decode('latin-1').strip()
n += 1
return request, headers, b'\r\n'.join(lines[n + 1:])
def _parse_chunked(self, data):
body = []
trailers = {}
n = 0
lines = data.split(b'\r\n')
# parse body
while True:
size, chunk = lines[n:n+2]
size = int(size, 16)
if size == 0:
n += 1
break
self.assertEqual(size, len(chunk))
body.append(chunk)
n += 2
# we /should/ hit the end chunk, but check against the size of
# lines so we're not stuck in an infinite loop should we get
# malformed data
if n > len(lines):
break
return b''.join(body)
class BasicTest(TestCase):
def test_status_lines(self):
# Test HTTP status lines
body = "HTTP/1.1 200 Ok\r\n\r\nText"
sock = FakeSocket(body)
resp = client.HTTPResponse(sock)
resp.begin()
self.assertEqual(resp.read(0), b'') # Issue #20007
self.assertFalse(resp.isclosed())
self.assertFalse(resp.closed)
self.assertEqual(resp.read(), b"Text")
self.assertTrue(resp.isclosed())
self.assertFalse(resp.closed)
resp.close()
self.assertTrue(resp.closed)
body = "HTTP/1.1 400.100 Not Ok\r\n\r\nText"
sock = FakeSocket(body)
resp = client.HTTPResponse(sock)
self.assertRaises(client.BadStatusLine, resp.begin)
def test_bad_status_repr(self):
exc = client.BadStatusLine('')
self.assertEqual(repr(exc), '''BadStatusLine("''")''')
def test_partial_reads(self):
# if we have Content-Length, HTTPResponse knows when to close itself,
# the same behaviour as when we read the whole thing with read()
body = "HTTP/1.1 200 Ok\r\nContent-Length: 4\r\n\r\nText"
sock = FakeSocket(body)
resp = client.HTTPResponse(sock)
resp.begin()
self.assertEqual(resp.read(2), b'Te')
self.assertFalse(resp.isclosed())
self.assertEqual(resp.read(2), b'xt')
self.assertTrue(resp.isclosed())
self.assertFalse(resp.closed)
resp.close()
self.assertTrue(resp.closed)
def test_mixed_reads(self):
# readline() should update the remaining length, so that read() knows
# how much data is left and does not raise IncompleteRead
body = "HTTP/1.1 200 Ok\r\nContent-Length: 13\r\n\r\nText\r\nAnother"
sock = FakeSocket(body)
resp = client.HTTPResponse(sock)
resp.begin()
self.assertEqual(resp.readline(), b'Text\r\n')
self.assertFalse(resp.isclosed())
self.assertEqual(resp.read(), b'Another')
self.assertTrue(resp.isclosed())
self.assertFalse(resp.closed)
resp.close()
self.assertTrue(resp.closed)
def test_partial_readintos(self):
# if we have Content-Length, HTTPResponse knows when to close itself,
# the same behaviour as when we read the whole thing with read()
body = "HTTP/1.1 200 Ok\r\nContent-Length: 4\r\n\r\nText"
sock = FakeSocket(body)
resp = client.HTTPResponse(sock)
resp.begin()
b = bytearray(2)
n = resp.readinto(b)
self.assertEqual(n, 2)
self.assertEqual(bytes(b), b'Te')
self.assertFalse(resp.isclosed())
n = resp.readinto(b)
self.assertEqual(n, 2)
self.assertEqual(bytes(b), b'xt')
self.assertTrue(resp.isclosed())
self.assertFalse(resp.closed)
resp.close()
self.assertTrue(resp.closed)
def test_partial_reads_no_content_length(self):
# when no length is present, the socket should be gracefully closed when
# all data was read
body = "HTTP/1.1 200 Ok\r\n\r\nText"
sock = FakeSocket(body)
resp = client.HTTPResponse(sock)
resp.begin()
self.assertEqual(resp.read(2), b'Te')
self.assertFalse(resp.isclosed())
self.assertEqual(resp.read(2), b'xt')
self.assertEqual(resp.read(1), b'')
self.assertTrue(resp.isclosed())
self.assertFalse(resp.closed)
resp.close()
self.assertTrue(resp.closed)
def test_partial_readintos_no_content_length(self):
# when no length is present, the socket should be gracefully closed when
# all data was read
body = "HTTP/1.1 200 Ok\r\n\r\nText"
sock = FakeSocket(body)
resp = client.HTTPResponse(sock)
resp.begin()
b = bytearray(2)
n = resp.readinto(b)
self.assertEqual(n, 2)
self.assertEqual(bytes(b), b'Te')
self.assertFalse(resp.isclosed())
n = resp.readinto(b)
self.assertEqual(n, 2)
self.assertEqual(bytes(b), b'xt')
n = resp.readinto(b)
self.assertEqual(n, 0)
self.assertTrue(resp.isclosed())
def test_partial_reads_incomplete_body(self):
# if the server shuts down the connection before the whole
# content-length is delivered, the socket is gracefully closed
body = "HTTP/1.1 200 Ok\r\nContent-Length: 10\r\n\r\nText"
sock = FakeSocket(body)
resp = client.HTTPResponse(sock)
resp.begin()
self.assertEqual(resp.read(2), b'Te')
self.assertFalse(resp.isclosed())
self.assertEqual(resp.read(2), b'xt')
self.assertEqual(resp.read(1), b'')
self.assertTrue(resp.isclosed())
def test_partial_readintos_incomplete_body(self):
# if the server shuts down the connection before the whole
# content-length is delivered, the socket is gracefully closed
body = "HTTP/1.1 200 Ok\r\nContent-Length: 10\r\n\r\nText"
sock = FakeSocket(body)
resp = client.HTTPResponse(sock)
resp.begin()
b = bytearray(2)
n = resp.readinto(b)
self.assertEqual(n, 2)
self.assertEqual(bytes(b), b'Te')
self.assertFalse(resp.isclosed())
n = resp.readinto(b)
self.assertEqual(n, 2)
self.assertEqual(bytes(b), b'xt')
n = resp.readinto(b)
self.assertEqual(n, 0)
self.assertTrue(resp.isclosed())
self.assertFalse(resp.closed)
resp.close()
self.assertTrue(resp.closed)
def test_host_port(self):
# Check invalid host_port
for hp in ("www.python.org:abc", "user:password@www.python.org"):
self.assertRaises(client.InvalidURL, client.HTTPConnection, hp)
for hp, h, p in (("[fe80::207:e9ff:fe9b]:8000",
"fe80::207:e9ff:fe9b", 8000),
("www.python.org:80", "www.python.org", 80),
("www.python.org:", "www.python.org", 80),
("www.python.org", "www.python.org", 80),
("[fe80::207:e9ff:fe9b]", "fe80::207:e9ff:fe9b", 80),
("[fe80::207:e9ff:fe9b]:", "fe80::207:e9ff:fe9b", 80)):
c = client.HTTPConnection(hp)
self.assertEqual(h, c.host)
self.assertEqual(p, c.port)
def test_response_headers(self):
# test response with multiple message headers with the same field name.
text = ('HTTP/1.1 200 OK\r\n'
'Set-Cookie: Customer="WILE_E_COYOTE"; '
'Version="1"; Path="/acme"\r\n'
'Set-Cookie: Part_Number="Rocket_Launcher_0001"; Version="1";'
' Path="/acme"\r\n'
'\r\n'
'No body\r\n')
hdr = ('Customer="WILE_E_COYOTE"; Version="1"; Path="/acme"'
', '
'Part_Number="Rocket_Launcher_0001"; Version="1"; Path="/acme"')
s = FakeSocket(text)
r = client.HTTPResponse(s)
r.begin()
cookies = r.getheader("Set-Cookie")
self.assertEqual(cookies, hdr)
def test_read_head(self):
# Test that the library doesn't attempt to read any data
# from a HEAD request. (Tickles SF bug #622042.)
sock = FakeSocket(
'HTTP/1.1 200 OK\r\n'
'Content-Length: 14432\r\n'
'\r\n',
NoEOFBytesIO)
resp = client.HTTPResponse(sock, method="HEAD")
resp.begin()
if resp.read():
self.fail("Did not expect response from HEAD request")
def test_readinto_head(self):
# Test that the library doesn't attempt to read any data
# from a HEAD request. (Tickles SF bug #622042.)
sock = FakeSocket(
'HTTP/1.1 200 OK\r\n'
'Content-Length: 14432\r\n'
'\r\n',
NoEOFBytesIO)
resp = client.HTTPResponse(sock, method="HEAD")
resp.begin()
b = bytearray(5)
if resp.readinto(b) != 0:
self.fail("Did not expect response from HEAD request")
self.assertEqual(bytes(b), b'\x00'*5)
def test_too_many_headers(self):
headers = '\r\n'.join('Header%d: foo' % i
for i in range(client._MAXHEADERS + 1)) + '\r\n'
text = ('HTTP/1.1 200 OK\r\n' + headers)
s = FakeSocket(text)
r = client.HTTPResponse(s)
self.assertRaisesRegex(client.HTTPException,
r"got more than \d+ headers", r.begin)
def test_send_file(self):
expected = (b'GET /foo HTTP/1.1\r\nHost: example.com\r\n'
b'Accept-Encoding: identity\r\n'
b'Transfer-Encoding: chunked\r\n'
b'\r\n')
with open(__file__, 'rb') as body:
conn = client.HTTPConnection('example.com')
sock = FakeSocket(body)
conn.sock = sock
conn.request('GET', '/foo', body)
self.assertTrue(sock.data.startswith(expected), '%r != %r' %
(sock.data[:len(expected)], expected))
def test_send(self):
expected = b'this is a test this is only a test'
conn = client.HTTPConnection('example.com')
sock = FakeSocket(None)
conn.sock = sock
conn.send(expected)
self.assertEqual(expected, sock.data)
sock.data = b''
conn.send(array.array('b', expected))
self.assertEqual(expected, sock.data)
sock.data = b''
conn.send(io.BytesIO(expected))
self.assertEqual(expected, sock.data)
def test_send_updating_file(self):
def data():
yield 'data'
yield None
yield 'data_two'
class UpdatingFile(io.TextIOBase):
mode = 'r'
d = data()
def read(self, blocksize=-1):
return next(self.d)
expected = b'data'
conn = client.HTTPConnection('example.com')
sock = FakeSocket("")
conn.sock = sock
conn.send(UpdatingFile())
self.assertEqual(sock.data, expected)
def test_send_iter(self):
expected = b'GET /foo HTTP/1.1\r\nHost: example.com\r\n' \
b'Accept-Encoding: identity\r\nContent-Length: 11\r\n' \
b'\r\nonetwothree'
def body():
yield b"one"
yield b"two"
yield b"three"
conn = client.HTTPConnection('example.com')
sock = FakeSocket("")
conn.sock = sock
conn.request('GET', '/foo', body(), {'Content-Length': '11'})
self.assertEqual(sock.data, expected)
def test_blocksize_request(self):
"""Check that request() respects the configured block size."""
blocksize = 8 # For easy debugging.
conn = client.HTTPConnection('example.com', blocksize=blocksize)
sock = FakeSocket(None)
conn.sock = sock
expected = b"a" * blocksize + b"b"
conn.request("PUT", "/", io.BytesIO(expected), {"Content-Length": "9"})
self.assertEqual(sock.sendall_calls, 3)
body = sock.data.split(b"\r\n\r\n", 1)[1]
self.assertEqual(body, expected)
def test_blocksize_send(self):
"""Check that send() respects the configured block size."""
blocksize = 8 # For easy debugging.
conn = client.HTTPConnection('example.com', blocksize=blocksize)
sock = FakeSocket(None)
conn.sock = sock
expected = b"a" * blocksize + b"b"
conn.send(io.BytesIO(expected))
self.assertEqual(sock.sendall_calls, 2)
self.assertEqual(sock.data, expected)
def test_send_type_error(self):
# See: Issue #12676
conn = client.HTTPConnection('example.com')
conn.sock = FakeSocket('')
with self.assertRaises(TypeError):
conn.request('POST', 'test', conn)
def test_chunked(self):
expected = chunked_expected
sock = FakeSocket(chunked_start + last_chunk + chunked_end)
resp = client.HTTPResponse(sock, method="GET")
resp.begin()
self.assertEqual(resp.read(), expected)
resp.close()
# Various read sizes
for n in range(1, 12):
sock = FakeSocket(chunked_start + last_chunk + chunked_end)
resp = client.HTTPResponse(sock, method="GET")
resp.begin()
self.assertEqual(resp.read(n) + resp.read(n) + resp.read(), expected)
resp.close()
for x in ('', 'foo\r\n'):
sock = FakeSocket(chunked_start + x)
resp = client.HTTPResponse(sock, method="GET")
resp.begin()
try:
resp.read()
except client.IncompleteRead as i:
self.assertEqual(i.partial, expected)
expected_message = 'IncompleteRead(%d bytes read)' % len(expected)
self.assertEqual(repr(i), expected_message)
self.assertEqual(str(i), expected_message)
else:
self.fail('IncompleteRead expected')
finally:
resp.close()
def test_readinto_chunked(self):
expected = chunked_expected
nexpected = len(expected)
b = bytearray(128)
sock = FakeSocket(chunked_start + last_chunk + chunked_end)
resp = client.HTTPResponse(sock, method="GET")
resp.begin()
n = resp.readinto(b)
self.assertEqual(b[:nexpected], expected)
self.assertEqual(n, nexpected)
resp.close()
# Various read sizes
for n in range(1, 12):
sock = FakeSocket(chunked_start + last_chunk + chunked_end)
resp = client.HTTPResponse(sock, method="GET")
resp.begin()
m = memoryview(b)
i = resp.readinto(m[0:n])
i += resp.readinto(m[i:n + i])
i += resp.readinto(m[i:])
self.assertEqual(b[:nexpected], expected)
self.assertEqual(i, nexpected)
resp.close()
for x in ('', 'foo\r\n'):
sock = FakeSocket(chunked_start + x)
resp = client.HTTPResponse(sock, method="GET")
resp.begin()
try:
n = resp.readinto(b)
except client.IncompleteRead as i:
self.assertEqual(i.partial, expected)
expected_message = 'IncompleteRead(%d bytes read)' % len(expected)
self.assertEqual(repr(i), expected_message)
self.assertEqual(str(i), expected_message)
else:
self.fail('IncompleteRead expected')
finally:
resp.close()
def test_chunked_head(self):
chunked_start = (
'HTTP/1.1 200 OK\r\n'
'Transfer-Encoding: chunked\r\n\r\n'
'a\r\n'
'hello world\r\n'
'1\r\n'
'd\r\n'
)
sock = FakeSocket(chunked_start + last_chunk + chunked_end)
resp = client.HTTPResponse(sock, method="HEAD")
resp.begin()
self.assertEqual(resp.read(), b'')
self.assertEqual(resp.status, 200)
self.assertEqual(resp.reason, 'OK')
self.assertTrue(resp.isclosed())
self.assertFalse(resp.closed)
resp.close()
self.assertTrue(resp.closed)
def test_readinto_chunked_head(self):
chunked_start = (
'HTTP/1.1 200 OK\r\n'
'Transfer-Encoding: chunked\r\n\r\n'
'a\r\n'
'hello world\r\n'
'1\r\n'
'd\r\n'
)
sock = FakeSocket(chunked_start + last_chunk + chunked_end)
resp = client.HTTPResponse(sock, method="HEAD")
resp.begin()
b = bytearray(5)
n = resp.readinto(b)
self.assertEqual(n, 0)
self.assertEqual(bytes(b), b'\x00'*5)
self.assertEqual(resp.status, 200)
self.assertEqual(resp.reason, 'OK')
self.assertTrue(resp.isclosed())
self.assertFalse(resp.closed)
resp.close()
self.assertTrue(resp.closed)
def test_negative_content_length(self):
sock = FakeSocket(
'HTTP/1.1 200 OK\r\nContent-Length: -1\r\n\r\nHello\r\n')
resp = client.HTTPResponse(sock, method="GET")
resp.begin()
self.assertEqual(resp.read(), b'Hello\r\n')
self.assertTrue(resp.isclosed())
def test_incomplete_read(self):
sock = FakeSocket('HTTP/1.1 200 OK\r\nContent-Length: 10\r\n\r\nHello\r\n')
resp = client.HTTPResponse(sock, method="GET")
resp.begin()
try:
resp.read()
except client.IncompleteRead as i:
self.assertEqual(i.partial, b'Hello\r\n')
self.assertEqual(repr(i),
"IncompleteRead(7 bytes read, 3 more expected)")
self.assertEqual(str(i),
"IncompleteRead(7 bytes read, 3 more expected)")
self.assertTrue(resp.isclosed())
else:
self.fail('IncompleteRead expected')
def test_epipe(self):
sock = EPipeSocket(
"HTTP/1.0 401 Authorization Required\r\n"
"Content-type: text/html\r\n"
"WWW-Authenticate: Basic realm=\"example\"\r\n",
b"Content-Length")
conn = client.HTTPConnection("example.com")
conn.sock = sock
self.assertRaises(OSError,
lambda: conn.request("PUT", "/url", "body"))
resp = conn.getresponse()
self.assertEqual(401, resp.status)
self.assertEqual("Basic realm=\"example\"",
resp.getheader("www-authenticate"))
# Test lines overflowing the max line size (_MAXLINE in http.client)
def test_overflowing_status_line(self):
body = "HTTP/1.1 200 Ok" + "k" * 65536 + "\r\n"
resp = client.HTTPResponse(FakeSocket(body))
self.assertRaises((client.LineTooLong, client.BadStatusLine), resp.begin)
def test_overflowing_header_line(self):
body = (
'HTTP/1.1 200 OK\r\n'
'X-Foo: bar' + 'r' * 65536 + '\r\n\r\n'
)
resp = client.HTTPResponse(FakeSocket(body))
self.assertRaises(client.LineTooLong, resp.begin)
def test_overflowing_chunked_line(self):
body = (
'HTTP/1.1 200 OK\r\n'
'Transfer-Encoding: chunked\r\n\r\n'
+ '0' * 65536 + 'a\r\n'
'hello world\r\n'
'0\r\n'
'\r\n'
)
resp = client.HTTPResponse(FakeSocket(body))
resp.begin()
self.assertRaises(client.LineTooLong, resp.read)
def test_early_eof(self):
# Test httpresponse with no \r\n termination,
body = "HTTP/1.1 200 Ok"
sock = FakeSocket(body)
resp = client.HTTPResponse(sock)
resp.begin()
self.assertEqual(resp.read(), b'')
self.assertTrue(resp.isclosed())
self.assertFalse(resp.closed)
resp.close()
self.assertTrue(resp.closed)
def test_error_leak(self):
# Test that the socket is not leaked if getresponse() fails
conn = client.HTTPConnection('example.com')
response = None
class Response(client.HTTPResponse):
def __init__(self, *pos, **kw):
nonlocal response
response = self # Avoid garbage collector closing the socket
client.HTTPResponse.__init__(self, *pos, **kw)
conn.response_class = Response
conn.sock = FakeSocket('Invalid status line')
conn.request('GET', '/')
self.assertRaises(client.BadStatusLine, conn.getresponse)
self.assertTrue(response.closed)
self.assertTrue(conn.sock.file_closed)
def test_chunked_extension(self):
extra = '3;foo=bar\r\n' + 'abc\r\n'
expected = chunked_expected + b'abc'
sock = FakeSocket(chunked_start + extra + last_chunk_extended + chunked_end)
resp = client.HTTPResponse(sock, method="GET")
resp.begin()
self.assertEqual(resp.read(), expected)
resp.close()
def test_chunked_missing_end(self):
"""some servers may serve up a short chunked encoding stream"""
expected = chunked_expected
sock = FakeSocket(chunked_start + last_chunk) #no terminating crlf
resp = client.HTTPResponse(sock, method="GET")
resp.begin()
self.assertEqual(resp.read(), expected)
resp.close()
def test_chunked_trailers(self):
"""See that trailers are read and ignored"""
expected = chunked_expected
sock = FakeSocket(chunked_start + last_chunk + trailers + chunked_end)
resp = client.HTTPResponse(sock, method="GET")
resp.begin()
self.assertEqual(resp.read(), expected)
# we should have reached the end of the file
self.assertEqual(sock.file.read(), b"") #we read to the end
resp.close()
def test_chunked_sync(self):
"""Check that we don't read past the end of the chunked-encoding stream"""
expected = chunked_expected
extradata = "extradata"
sock = FakeSocket(chunked_start + last_chunk + trailers + chunked_end + extradata)
resp = client.HTTPResponse(sock, method="GET")
resp.begin()
self.assertEqual(resp.read(), expected)
# the file should now have our extradata ready to be read
self.assertEqual(sock.file.read(), extradata.encode("ascii")) #we read to the end
resp.close()
def test_content_length_sync(self):
"""Check that we don't read past the end of the Content-Length stream"""
extradata = b"extradata"
expected = b"Hello123\r\n"
sock = FakeSocket(b'HTTP/1.1 200 OK\r\nContent-Length: 10\r\n\r\n' + expected + extradata)
resp = client.HTTPResponse(sock, method="GET")
resp.begin()
self.assertEqual(resp.read(), expected)
# the file should now have our extradata ready to be read
self.assertEqual(sock.file.read(), extradata) #we read to the end
resp.close()
def test_readlines_content_length(self):
extradata = b"extradata"
expected = b"Hello123\r\n"
sock = FakeSocket(b'HTTP/1.1 200 OK\r\nContent-Length: 10\r\n\r\n' + expected + extradata)
resp = client.HTTPResponse(sock, method="GET")
resp.begin()
self.assertEqual(resp.readlines(2000), [expected])
# the file should now have our extradata ready to be read
self.assertEqual(sock.file.read(), extradata) #we read to the end
resp.close()
def test_read1_content_length(self):
extradata = b"extradata"
expected = b"Hello123\r\n"
sock = FakeSocket(b'HTTP/1.1 200 OK\r\nContent-Length: 10\r\n\r\n' + expected + extradata)
resp = client.HTTPResponse(sock, method="GET")
resp.begin()
self.assertEqual(resp.read1(2000), expected)
# the file should now have our extradata ready to be read
self.assertEqual(sock.file.read(), extradata) #we read to the end
resp.close()
def test_readline_bound_content_length(self):
extradata = b"extradata"
expected = b"Hello123\r\n"
sock = FakeSocket(b'HTTP/1.1 200 OK\r\nContent-Length: 10\r\n\r\n' + expected + extradata)
resp = client.HTTPResponse(sock, method="GET")
resp.begin()
self.assertEqual(resp.readline(10), expected)
self.assertEqual(resp.readline(10), b"")
# the file should now have our extradata ready to be read
self.assertEqual(sock.file.read(), extradata) #we read to the end
resp.close()
def test_read1_bound_content_length(self):
extradata = b"extradata"
expected = b"Hello123\r\n"
sock = FakeSocket(b'HTTP/1.1 200 OK\r\nContent-Length: 30\r\n\r\n' + expected*3 + extradata)
resp = client.HTTPResponse(sock, method="GET")
resp.begin()
self.assertEqual(resp.read1(20), expected*2)
self.assertEqual(resp.read(), expected)
# the file should now have our extradata ready to be read
self.assertEqual(sock.file.read(), extradata) #we read to the end
resp.close()
def test_response_fileno(self):
# Make sure fd returned by fileno is valid.
serv = socket.create_server((HOST, 0))
self.addCleanup(serv.close)
result = None
def run_server():
[conn, address] = serv.accept()
with conn, conn.makefile("rb") as reader:
# Read the request header until a blank line
while True:
line = reader.readline()
if not line.rstrip(b"\r\n"):
break
conn.sendall(b"HTTP/1.1 200 Connection established\r\n\r\n")
nonlocal result
result = reader.read()
thread = threading.Thread(target=run_server)
thread.start()
self.addCleanup(thread.join, float(1))
conn = client.HTTPConnection(*serv.getsockname())
conn.request("CONNECT", "dummy:1234")
response = conn.getresponse()
try:
self.assertEqual(response.status, client.OK)
s = socket.socket(fileno=response.fileno())
try:
s.sendall(b"proxied data\n")
finally:
s.detach()
finally:
response.close()
conn.close()
thread.join()
self.assertEqual(result, b"proxied data\n")
class ExtendedReadTest(TestCase):
"""
Test peek(), read1(), readline()
"""
lines = (
'HTTP/1.1 200 OK\r\n'
'\r\n'
'hello world!\n'
'and now \n'
'for something completely different\n'
'foo'
)
lines_expected = lines[lines.find('hello'):].encode("ascii")
lines_chunked = (
'HTTP/1.1 200 OK\r\n'
'Transfer-Encoding: chunked\r\n\r\n'
'a\r\n'
'hello worl\r\n'
'3\r\n'
'd!\n\r\n'
'9\r\n'
'and now \n\r\n'
'23\r\n'
'for something completely different\n\r\n'
'3\r\n'
'foo\r\n'
'0\r\n' # terminating chunk
'\r\n' # end of trailers
)
def setUp(self):
sock = FakeSocket(self.lines)
resp = client.HTTPResponse(sock, method="GET")
resp.begin()
resp.fp = io.BufferedReader(resp.fp)
self.resp = resp
def test_peek(self):
resp = self.resp
# patch up the buffered peek so that it returns not too much stuff
oldpeek = resp.fp.peek
def mypeek(n=-1):
p = oldpeek(n)
if n >= 0:
return p[:n]
return p[:10]
resp.fp.peek = mypeek
all = []
while True:
# try a short peek
p = resp.peek(3)
if p:
self.assertGreater(len(p), 0)
# then unbounded peek
p2 = resp.peek()
self.assertGreaterEqual(len(p2), len(p))
self.assertTrue(p2.startswith(p))
next = resp.read(len(p2))
self.assertEqual(next, p2)
else:
next = resp.read()
self.assertFalse(next)
all.append(next)
if not next:
break
self.assertEqual(b"".join(all), self.lines_expected)
def test_readline(self):
resp = self.resp
self._verify_readline(self.resp.readline, self.lines_expected)
def _verify_readline(self, readline, expected):
all = []
while True:
# short readlines
line = readline(5)
if line and line != b"foo":
if len(line) < 5:
self.assertTrue(line.endswith(b"\n"))
all.append(line)
if not line:
break
self.assertEqual(b"".join(all), expected)
def test_read1(self):
resp = self.resp
def r():
res = resp.read1(4)
self.assertLessEqual(len(res), 4)
return res
readliner = Readliner(r)
self._verify_readline(readliner.readline, self.lines_expected)
def test_read1_unbounded(self):
resp = self.resp
all = []
while True:
data = resp.read1()
if not data:
break
all.append(data)
self.assertEqual(b"".join(all), self.lines_expected)
def test_read1_bounded(self):
resp = self.resp
all = []
while True:
data = resp.read1(10)
if not data:
break
self.assertLessEqual(len(data), 10)
all.append(data)
self.assertEqual(b"".join(all), self.lines_expected)
def test_read1_0(self):
self.assertEqual(self.resp.read1(0), b"")
def test_peek_0(self):
p = self.resp.peek(0)
self.assertLessEqual(0, len(p))
class ExtendedReadTestChunked(ExtendedReadTest):
"""
Test peek(), read1(), readline() in chunked mode
"""
lines = (
'HTTP/1.1 200 OK\r\n'
'Transfer-Encoding: chunked\r\n\r\n'
'a\r\n'
'hello worl\r\n'
'3\r\n'
'd!\n\r\n'
'9\r\n'
'and now \n\r\n'
'23\r\n'
'for something completely different\n\r\n'
'3\r\n'
'foo\r\n'
'0\r\n' # terminating chunk
'\r\n' # end of trailers
)
class Readliner:
"""
a simple readline class that uses an arbitrary read function and buffering
"""
def __init__(self, readfunc):
self.readfunc = readfunc
self.remainder = b""
def readline(self, limit):
data = []
datalen = 0
read = self.remainder
try:
while True:
idx = read.find(b'\n')
if idx != -1:
break
if datalen + len(read) >= limit:
idx = limit - datalen - 1
# read more data
data.append(read)
read = self.readfunc()
if not read:
idx = 0 #eof condition
break
idx += 1
data.append(read[:idx])
self.remainder = read[idx:]
return b"".join(data)
except:
self.remainder = b"".join(data)
raise
class OfflineTest(TestCase):
def test_all(self):
# Documented objects defined in the module should be in __all__
expected = {"responses"} # White-list documented dict() object
# HTTPMessage, parse_headers(), and the HTTP status code constants are
# intentionally omitted for simplicity
blacklist = {"HTTPMessage", "parse_headers"}
for name in dir(client):
if name.startswith("_") or name in blacklist:
continue
module_object = getattr(client, name)
if getattr(module_object, "__module__", None) == "http.client":
expected.add(name)
self.assertCountEqual(client.__all__, expected)
def test_responses(self):
self.assertEqual(client.responses[client.NOT_FOUND], "Not Found")
def test_client_constants(self):
# Make sure we don't break backward compatibility with 3.4
expected = [
'CONTINUE',
'SWITCHING_PROTOCOLS',
'PROCESSING',
'OK',
'CREATED',
'ACCEPTED',
'NON_AUTHORITATIVE_INFORMATION',
'NO_CONTENT',
'RESET_CONTENT',
'PARTIAL_CONTENT',
'MULTI_STATUS',
'IM_USED',
'MULTIPLE_CHOICES',
'MOVED_PERMANENTLY',
'FOUND',
'SEE_OTHER',
'NOT_MODIFIED',
'USE_PROXY',
'TEMPORARY_REDIRECT',
'BAD_REQUEST',
'UNAUTHORIZED',
'PAYMENT_REQUIRED',
'FORBIDDEN',
'NOT_FOUND',
'METHOD_NOT_ALLOWED',
'NOT_ACCEPTABLE',
'PROXY_AUTHENTICATION_REQUIRED',
'REQUEST_TIMEOUT',
'CONFLICT',
'GONE',
'LENGTH_REQUIRED',
'PRECONDITION_FAILED',
'REQUEST_ENTITY_TOO_LARGE',
'REQUEST_URI_TOO_LONG',
'UNSUPPORTED_MEDIA_TYPE',
'REQUESTED_RANGE_NOT_SATISFIABLE',
'EXPECTATION_FAILED',
'MISDIRECTED_REQUEST',
'UNPROCESSABLE_ENTITY',
'LOCKED',
'FAILED_DEPENDENCY',
'UPGRADE_REQUIRED',
'PRECONDITION_REQUIRED',
'TOO_MANY_REQUESTS',
'REQUEST_HEADER_FIELDS_TOO_LARGE',
'INTERNAL_SERVER_ERROR',
'NOT_IMPLEMENTED',
'BAD_GATEWAY',
'SERVICE_UNAVAILABLE',
'GATEWAY_TIMEOUT',
'HTTP_VERSION_NOT_SUPPORTED',
'INSUFFICIENT_STORAGE',
'NOT_EXTENDED',
'NETWORK_AUTHENTICATION_REQUIRED',
]
for const in expected:
with self.subTest(constant=const):
self.assertTrue(hasattr(client, const))
class SourceAddressTest(TestCase):
def setUp(self):
self.serv = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
self.port = support.bind_port(self.serv)
self.source_port = support.find_unused_port()
self.serv.listen()
self.conn = None
def tearDown(self):
if self.conn:
self.conn.close()
self.conn = None
self.serv.close()
self.serv = None
def testHTTPConnectionSourceAddress(self):
self.conn = client.HTTPConnection(HOST, self.port,
source_address=('', self.source_port))
self.conn.connect()
self.assertEqual(self.conn.sock.getsockname()[1], self.source_port)
@unittest.skipIf(not hasattr(client, 'HTTPSConnection'),
'http.client.HTTPSConnection not defined')
def testHTTPSConnectionSourceAddress(self):
self.conn = client.HTTPSConnection(HOST, self.port,
source_address=('', self.source_port))
# We don't test anything here other than the constructor not barfing as
# this code doesn't deal with setting up an active running SSL server
# for an ssl_wrapped connect() to actually return from.
class TimeoutTest(TestCase):
PORT = None
def setUp(self):
self.serv = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
TimeoutTest.PORT = support.bind_port(self.serv)
self.serv.listen()
def tearDown(self):
self.serv.close()
self.serv = None
def testTimeoutAttribute(self):
# This will prove that the timeout gets through HTTPConnection
# and into the socket.
# default -- use global socket timeout
self.assertIsNone(socket.getdefaulttimeout())
socket.setdefaulttimeout(30)
try:
httpConn = client.HTTPConnection(HOST, TimeoutTest.PORT)
httpConn.connect()
finally:
socket.setdefaulttimeout(None)
self.assertEqual(httpConn.sock.gettimeout(), 30)
httpConn.close()
# no timeout -- do not use global socket default
self.assertIsNone(socket.getdefaulttimeout())
socket.setdefaulttimeout(30)
try:
httpConn = client.HTTPConnection(HOST, TimeoutTest.PORT,
timeout=None)
httpConn.connect()
finally:
socket.setdefaulttimeout(None)
self.assertEqual(httpConn.sock.gettimeout(), None)
httpConn.close()
# a value
httpConn = client.HTTPConnection(HOST, TimeoutTest.PORT, timeout=30)
httpConn.connect()
self.assertEqual(httpConn.sock.gettimeout(), 30)
httpConn.close()
class PersistenceTest(TestCase):
def test_reuse_reconnect(self):
# Should reuse or reconnect depending on header from server
tests = (
('1.0', '', False),
('1.0', 'Connection: keep-alive\r\n', True),
('1.1', '', True),
('1.1', 'Connection: close\r\n', False),
('1.0', 'Connection: keep-ALIVE\r\n', True),
('1.1', 'Connection: cloSE\r\n', False),
)
for version, header, reuse in tests:
with self.subTest(version=version, header=header):
msg = (
'HTTP/{} 200 OK\r\n'
'{}'
'Content-Length: 12\r\n'
'\r\n'
'Dummy body\r\n'
).format(version, header)
conn = FakeSocketHTTPConnection(msg)
self.assertIsNone(conn.sock)
conn.request('GET', '/open-connection')
with conn.getresponse() as response:
self.assertEqual(conn.sock is None, not reuse)
response.read()
self.assertEqual(conn.sock is None, not reuse)
self.assertEqual(conn.connections, 1)
conn.request('GET', '/subsequent-request')
self.assertEqual(conn.connections, 1 if reuse else 2)
def test_disconnected(self):
def make_reset_reader(text):
"""Return BufferedReader that raises ECONNRESET at EOF"""
stream = io.BytesIO(text)
def readinto(buffer):
size = io.BytesIO.readinto(stream, buffer)
if size == 0:
raise ConnectionResetError()
return size
stream.readinto = readinto
return io.BufferedReader(stream)
tests = (
(io.BytesIO, client.RemoteDisconnected),
(make_reset_reader, ConnectionResetError),
)
for stream_factory, exception in tests:
with self.subTest(exception=exception):
conn = FakeSocketHTTPConnection(b'', stream_factory)
conn.request('GET', '/eof-response')
self.assertRaises(exception, conn.getresponse)
self.assertIsNone(conn.sock)
# HTTPConnection.connect() should be automatically invoked
conn.request('GET', '/reconnect')
self.assertEqual(conn.connections, 2)
def test_100_close(self):
conn = FakeSocketHTTPConnection(
b'HTTP/1.1 100 Continue\r\n'
b'\r\n'
# Missing final response
)
conn.request('GET', '/', headers={'Expect': '100-continue'})
self.assertRaises(client.RemoteDisconnected, conn.getresponse)
self.assertIsNone(conn.sock)
conn.request('GET', '/reconnect')
self.assertEqual(conn.connections, 2)
class HTTPSTest(TestCase):
def setUp(self):
if not hasattr(client, 'HTTPSConnection'):
self.skipTest('ssl support required')
def make_server(self, certfile):
from test.ssl_servers import make_https_server
return make_https_server(self, certfile=certfile)
def test_attributes(self):
# simple test to check it's storing the timeout
h = client.HTTPSConnection(HOST, TimeoutTest.PORT, timeout=30)
self.assertEqual(h.timeout, 30)
def test_networked(self):
# Default settings: requires a valid cert from a trusted CA
import ssl
support.requires('network')
with support.transient_internet('self-signed.pythontest.net'):
h = client.HTTPSConnection('self-signed.pythontest.net', 443)
with self.assertRaises(ssl.SSLError) as exc_info:
h.request('GET', '/')
self.assertEqual(exc_info.exception.reason, 'CERTIFICATE_VERIFY_FAILED')
def test_networked_noverification(self):
# Switch off cert verification
import ssl
support.requires('network')
with support.transient_internet('self-signed.pythontest.net'):
context = ssl._create_unverified_context()
h = client.HTTPSConnection('self-signed.pythontest.net', 443,
context=context)
h.request('GET', '/')
resp = h.getresponse()
h.close()
self.assertIn('nginx', resp.getheader('server'))
resp.close()
@support.system_must_validate_cert
def test_networked_trusted_by_default_cert(self):
# Default settings: requires a valid cert from a trusted CA
support.requires('network')
with support.transient_internet('www.python.org'):
h = client.HTTPSConnection('www.python.org', 443)
h.request('GET', '/')
resp = h.getresponse()
content_type = resp.getheader('content-type')
resp.close()
h.close()
self.assertIn('text/html', content_type)
def test_networked_good_cert(self):
# We feed the server's cert as a validating cert
import ssl
support.requires('network')
selfsigned_pythontestdotnet = 'self-signed.pythontest.net'
with support.transient_internet(selfsigned_pythontestdotnet):
context = ssl.SSLContext(ssl.PROTOCOL_TLS_CLIENT)
self.assertEqual(context.verify_mode, ssl.CERT_REQUIRED)
self.assertEqual(context.check_hostname, True)
context.load_verify_locations(CERT_selfsigned_pythontestdotnet)
try:
h = client.HTTPSConnection(selfsigned_pythontestdotnet, 443,
context=context)
h.request('GET', '/')
resp = h.getresponse()
except ssl.SSLError as ssl_err:
ssl_err_str = str(ssl_err)
# In the error message of [SSL: CERTIFICATE_VERIFY_FAILED] on
# modern Linux distros (Debian Buster, etc) default OpenSSL
# configurations it'll fail saying "key too weak" until we
# address https://bugs.python.org/issue36816 to use a proper
# key size on self-signed.pythontest.net.
if re.search(r'(?i)key.too.weak', ssl_err_str):
raise unittest.SkipTest(
f'Got {ssl_err_str} trying to connect '
f'to {selfsigned_pythontestdotnet}. '
'See https://bugs.python.org/issue36816.')
raise
server_string = resp.getheader('server')
resp.close()
h.close()
self.assertIn('nginx', server_string)
def test_networked_bad_cert(self):
# We feed a "CA" cert that is unrelated to the server's cert
import ssl
support.requires('network')
with support.transient_internet('self-signed.pythontest.net'):
context = ssl.SSLContext(ssl.PROTOCOL_TLS_CLIENT)
context.load_verify_locations(CERT_localhost)
h = client.HTTPSConnection('self-signed.pythontest.net', 443, context=context)
with self.assertRaises(ssl.SSLError) as exc_info:
h.request('GET', '/')
self.assertEqual(exc_info.exception.reason, 'CERTIFICATE_VERIFY_FAILED')
def test_local_unknown_cert(self):
# The custom cert isn't known to the default trust bundle
import ssl
server = self.make_server(CERT_localhost)
h = client.HTTPSConnection('localhost', server.port)
with self.assertRaises(ssl.SSLError) as exc_info:
h.request('GET', '/')
self.assertEqual(exc_info.exception.reason, 'CERTIFICATE_VERIFY_FAILED')
def test_local_good_hostname(self):
# The (valid) cert validates the HTTP hostname
import ssl
server = self.make_server(CERT_localhost)
context = ssl.SSLContext(ssl.PROTOCOL_TLS_CLIENT)
context.load_verify_locations(CERT_localhost)
h = client.HTTPSConnection('localhost', server.port, context=context)
self.addCleanup(h.close)
h.request('GET', '/nonexistent')
resp = h.getresponse()
self.addCleanup(resp.close)
self.assertEqual(resp.status, 404)
def test_local_bad_hostname(self):
# The (valid) cert doesn't validate the HTTP hostname
import ssl
server = self.make_server(CERT_fakehostname)
context = ssl.SSLContext(ssl.PROTOCOL_TLS_CLIENT)
context.load_verify_locations(CERT_fakehostname)
h = client.HTTPSConnection('localhost', server.port, context=context)
with self.assertRaises(ssl.CertificateError):
h.request('GET', '/')
# Same with explicit check_hostname=True
with support.check_warnings(('', DeprecationWarning)):
h = client.HTTPSConnection('localhost', server.port,
context=context, check_hostname=True)
with self.assertRaises(ssl.CertificateError):
h.request('GET', '/')
# With check_hostname=False, the mismatching is ignored
context.check_hostname = False
with support.check_warnings(('', DeprecationWarning)):
h = client.HTTPSConnection('localhost', server.port,
context=context, check_hostname=False)
h.request('GET', '/nonexistent')
resp = h.getresponse()
resp.close()
h.close()
self.assertEqual(resp.status, 404)
# The context's check_hostname setting is used if one isn't passed to
# HTTPSConnection.
context.check_hostname = False
h = client.HTTPSConnection('localhost', server.port, context=context)
h.request('GET', '/nonexistent')
resp = h.getresponse()
self.assertEqual(resp.status, 404)
resp.close()
h.close()
# Passing check_hostname to HTTPSConnection should override the
# context's setting.
with support.check_warnings(('', DeprecationWarning)):
h = client.HTTPSConnection('localhost', server.port,
context=context, check_hostname=True)
with self.assertRaises(ssl.CertificateError):
h.request('GET', '/')
@unittest.skipIf(not hasattr(client, 'HTTPSConnection'),
'http.client.HTTPSConnection not available')
def test_host_port(self):
# Check invalid host_port
for hp in ("www.python.org:abc", "user:password@www.python.org"):
self.assertRaises(client.InvalidURL, client.HTTPSConnection, hp)
for hp, h, p in (("[fe80::207:e9ff:fe9b]:8000",
"fe80::207:e9ff:fe9b", 8000),
("www.python.org:443", "www.python.org", 443),
("www.python.org:", "www.python.org", 443),
("www.python.org", "www.python.org", 443),
("[fe80::207:e9ff:fe9b]", "fe80::207:e9ff:fe9b", 443),
("[fe80::207:e9ff:fe9b]:", "fe80::207:e9ff:fe9b",
443)):
c = client.HTTPSConnection(hp)
self.assertEqual(h, c.host)
self.assertEqual(p, c.port)
class RequestBodyTest(TestCase):
"""Test cases where a request includes a message body."""
def setUp(self):
self.conn = client.HTTPConnection('example.com')
self.conn.sock = self.sock = FakeSocket("")
self.conn.sock = self.sock
def get_headers_and_fp(self):
f = io.BytesIO(self.sock.data)
f.readline() # read the request line
message = client.parse_headers(f)
return message, f
def test_list_body(self):
# Note that no content-length is automatically calculated for
# an iterable. The request will fall back to send chunked
# transfer encoding.
cases = (
([b'foo', b'bar'], b'3\r\nfoo\r\n3\r\nbar\r\n0\r\n\r\n'),
((b'foo', b'bar'), b'3\r\nfoo\r\n3\r\nbar\r\n0\r\n\r\n'),
)
for body, expected in cases:
with self.subTest(body):
self.conn = client.HTTPConnection('example.com')
self.conn.sock = self.sock = FakeSocket('')
self.conn.request('PUT', '/url', body)
msg, f = self.get_headers_and_fp()
self.assertNotIn('Content-Type', msg)
self.assertNotIn('Content-Length', msg)
self.assertEqual(msg.get('Transfer-Encoding'), 'chunked')
self.assertEqual(expected, f.read())
def test_manual_content_length(self):
# Set an incorrect content-length so that we can verify that
# it will not be over-ridden by the library.
self.conn.request("PUT", "/url", "body",
{"Content-Length": "42"})
message, f = self.get_headers_and_fp()
self.assertEqual("42", message.get("content-length"))
self.assertEqual(4, len(f.read()))
def test_ascii_body(self):
self.conn.request("PUT", "/url", "body")
message, f = self.get_headers_and_fp()
self.assertEqual("text/plain", message.get_content_type())
self.assertIsNone(message.get_charset())
self.assertEqual("4", message.get("content-length"))
self.assertEqual(b'body', f.read())
def test_latin1_body(self):
self.conn.request("PUT", "/url", "body\xc1")
message, f = self.get_headers_and_fp()
self.assertEqual("text/plain", message.get_content_type())
self.assertIsNone(message.get_charset())
self.assertEqual("5", message.get("content-length"))
self.assertEqual(b'body\xc1', f.read())
def test_bytes_body(self):
self.conn.request("PUT", "/url", b"body\xc1")
message, f = self.get_headers_and_fp()
self.assertEqual("text/plain", message.get_content_type())
self.assertIsNone(message.get_charset())
self.assertEqual("5", message.get("content-length"))
self.assertEqual(b'body\xc1', f.read())
def test_text_file_body(self):
self.addCleanup(support.unlink, support.TESTFN)
with open(support.TESTFN, "w") as f:
f.write("body")
with open(support.TESTFN) as f:
self.conn.request("PUT", "/url", f)
message, f = self.get_headers_and_fp()
self.assertEqual("text/plain", message.get_content_type())
self.assertIsNone(message.get_charset())
# No content-length will be determined for files; the body
# will be sent using chunked transfer encoding instead.
self.assertIsNone(message.get("content-length"))
self.assertEqual("chunked", message.get("transfer-encoding"))
self.assertEqual(b'4\r\nbody\r\n0\r\n\r\n', f.read())
def test_binary_file_body(self):
self.addCleanup(support.unlink, support.TESTFN)
with open(support.TESTFN, "wb") as f:
f.write(b"body\xc1")
with open(support.TESTFN, "rb") as f:
self.conn.request("PUT", "/url", f)
message, f = self.get_headers_and_fp()
self.assertEqual("text/plain", message.get_content_type())
self.assertIsNone(message.get_charset())
self.assertEqual("chunked", message.get("Transfer-Encoding"))
self.assertNotIn("Content-Length", message)
self.assertEqual(b'5\r\nbody\xc1\r\n0\r\n\r\n', f.read())
class HTTPResponseTest(TestCase):
def setUp(self):
body = "HTTP/1.1 200 Ok\r\nMy-Header: first-value\r\nMy-Header: \
second-value\r\n\r\nText"
sock = FakeSocket(body)
self.resp = client.HTTPResponse(sock)
self.resp.begin()
def test_getting_header(self):
header = self.resp.getheader('My-Header')
self.assertEqual(header, 'first-value, second-value')
header = self.resp.getheader('My-Header', 'some default')
self.assertEqual(header, 'first-value, second-value')
def test_getting_nonexistent_header_with_string_default(self):
header = self.resp.getheader('No-Such-Header', 'default-value')
self.assertEqual(header, 'default-value')
def test_getting_nonexistent_header_with_iterable_default(self):
header = self.resp.getheader('No-Such-Header', ['default', 'values'])
self.assertEqual(header, 'default, values')
header = self.resp.getheader('No-Such-Header', ('default', 'values'))
self.assertEqual(header, 'default, values')
def test_getting_nonexistent_header_without_default(self):
header = self.resp.getheader('No-Such-Header')
self.assertEqual(header, None)
def test_getting_header_defaultint(self):
header = self.resp.getheader('No-Such-Header',default=42)
self.assertEqual(header, 42)
class TunnelTests(TestCase):
def setUp(self):
response_text = (
'HTTP/1.0 200 OK\r\n\r\n' # Reply to CONNECT
'HTTP/1.1 200 OK\r\n' # Reply to HEAD
'Content-Length: 42\r\n\r\n'
)
self.host = 'proxy.com'
self.conn = client.HTTPConnection(self.host)
self.conn._create_connection = self._create_connection(response_text)
def tearDown(self):
self.conn.close()
def _create_connection(self, response_text):
def create_connection(address, timeout=None, source_address=None):
return FakeSocket(response_text, host=address[0], port=address[1])
return create_connection
def test_set_tunnel_host_port_headers(self):
tunnel_host = 'destination.com'
tunnel_port = 8888
tunnel_headers = {'User-Agent': 'Mozilla/5.0 (compatible, MSIE 11)'}
self.conn.set_tunnel(tunnel_host, port=tunnel_port,
headers=tunnel_headers)
self.conn.request('HEAD', '/', '')
self.assertEqual(self.conn.sock.host, self.host)
self.assertEqual(self.conn.sock.port, client.HTTP_PORT)
self.assertEqual(self.conn._tunnel_host, tunnel_host)
self.assertEqual(self.conn._tunnel_port, tunnel_port)
self.assertEqual(self.conn._tunnel_headers, tunnel_headers)
def test_disallow_set_tunnel_after_connect(self):
# Once connected, we shouldn't be able to tunnel anymore
self.conn.connect()
self.assertRaises(RuntimeError, self.conn.set_tunnel,
'destination.com')
def test_connect_with_tunnel(self):
self.conn.set_tunnel('destination.com')
self.conn.request('HEAD', '/', '')
self.assertEqual(self.conn.sock.host, self.host)
self.assertEqual(self.conn.sock.port, client.HTTP_PORT)
self.assertIn(b'CONNECT destination.com', self.conn.sock.data)
# issue22095
self.assertNotIn(b'Host: destination.com:None', self.conn.sock.data)
self.assertIn(b'Host: destination.com', self.conn.sock.data)
# This test should be removed when CONNECT gets the HTTP/1.1 blessing
self.assertNotIn(b'Host: proxy.com', self.conn.sock.data)
def test_connect_put_request(self):
self.conn.set_tunnel('destination.com')
self.conn.request('PUT', '/', '')
self.assertEqual(self.conn.sock.host, self.host)
self.assertEqual(self.conn.sock.port, client.HTTP_PORT)
self.assertIn(b'CONNECT destination.com', self.conn.sock.data)
self.assertIn(b'Host: destination.com', self.conn.sock.data)
def test_tunnel_debuglog(self):
expected_header = 'X-Dummy: 1'
response_text = 'HTTP/1.0 200 OK\r\n{}\r\n\r\n'.format(expected_header)
self.conn.set_debuglevel(1)
self.conn._create_connection = self._create_connection(response_text)
self.conn.set_tunnel('destination.com')
with support.captured_stdout() as output:
self.conn.request('PUT', '/', '')
lines = output.getvalue().splitlines()
self.assertIn('header: {}'.format(expected_header), lines)
if __name__ == '__main__':
unittest.main(verbosity=2)