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2831 lines (2522 loc) · 110 KB
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import enum
import errno
from http import client, HTTPStatus
import io
import itertools
import os
import array
import re
import socket
import threading
import unittest
from unittest import mock
TestCase = unittest.TestCase
from test import support
from test.support import os_helper
from test.support import socket_helper
support.requires_working_socket(module=True)
here = os.path.dirname(__file__)
# Self-signed cert file for 'localhost'
CERT_localhost = os.path.join(here, 'certdata', 'keycert.pem')
# Self-signed cert file for 'fakehostname'
CERT_fakehostname = os.path.join(here, 'certdata', 'keycert2.pem')
# Self-signed cert file for self-signed.pythontest.net
CERT_selfsigned_pythontestdotnet = os.path.join(
here, 'certdata', '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 = socket_helper.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.assertStartsWith(sock.data, 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.assertStartsWith(sock.data, expected)
expected = b'GET /foo HTTP/1.1\r\nHost: [fe80::]\r\n' \
b'Accept-Encoding: identity\r\n\r\n'
conn = client.HTTPConnection('[fe80::%2]')
sock = FakeSocket('')
conn.sock = sock
conn.request('GET', '/foo')
self.assertStartsWith(sock.data, expected)
expected = b'GET /foo HTTP/1.1\r\nHost: [fe80::]:81\r\n' \
b'Accept-Encoding: identity\r\n\r\n'
conn = client.HTTPConnection('[fe80::%2]:81')
sock = FakeSocket('')
conn.sock = sock
conn.request('GET', '/foo')
self.assertStartsWith(sock.data, 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.assertStartsWith(folded, 'text')
self.assertIn(' folded with space', folded)
self.assertEndsWith(folded, '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_invalid_tunnel_headers(self):
cases = (
('Invalid\r\nName', 'ValidValue'),
('Invalid\rName', 'ValidValue'),
('Invalid\nName', 'ValidValue'),
('\r\nInvalidName', 'ValidValue'),
('\rInvalidName', 'ValidValue'),
('\nInvalidName', 'ValidValue'),
(' InvalidName', 'ValidValue'),
('\tInvalidName', 'ValidValue'),
('Invalid:Name', 'ValidValue'),
(':InvalidName', 'ValidValue'),
('ValidName', 'Invalid\r\nValue'),
('ValidName', 'Invalid\rValue'),
('ValidName', 'Invalid\nValue'),
('ValidName', 'InvalidValue\r\n'),
('ValidName', 'InvalidValue\r'),
('ValidName', 'InvalidValue\n'),
)
for name, value in cases:
with self.subTest((name, value)):
conn = client.HTTPConnection('example.com')
conn.set_tunnel('tunnel', headers={
name: value
})
conn.sock = FakeSocket('')
with self.assertRaisesRegex(ValueError, 'Invalid header'):
conn._tunnel() # Called in .connect()
def test_invalid_tunnel_host(self):
cases = (
'invalid\r.host',
'\ninvalid.host',
'invalid.host\r\n',
'invalid.host\x00',
'invalid host',
)
for tunnel_host in cases:
with self.subTest(tunnel_host):
conn = client.HTTPConnection('example.com')
conn.set_tunnel(tunnel_host)
conn.sock = FakeSocket('')
with self.assertRaisesRegex(ValueError, 'Tunnel host can\'t contain control characters'):
conn._tunnel() # Called in .connect()
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")
def test_max_response_headers(self):
max_headers = client._MAXHEADERS + 20
headers = [f"Name{i}: Value{i}".encode() for i in range(max_headers)]
body = b"HTTP/1.1 200 OK\r\n" + b"\r\n".join(headers)
with self.subTest(max_headers=None):
sock = FakeSocket(body)
resp = client.HTTPResponse(sock)
with self.assertRaisesRegex(
client.HTTPException, f"got more than 100 headers"
):
resp.begin()
with self.subTest(max_headers=max_headers):
sock = FakeSocket(body)
resp = client.HTTPResponse(sock)
resp.begin(_max_headers=max_headers)
def test_max_connection_headers(self):
max_headers = client._MAXHEADERS + 20
headers = (
f"Name{i}: Value{i}".encode() for i in range(max_headers - 1)
)
body = (
b"HTTP/1.1 200 OK\r\n"
+ b"\r\n".join(headers)
+ b"\r\nContent-Length: 12\r\n\r\nDummy body\r\n"
)
with self.subTest(max_headers=None):
conn = client.HTTPConnection("example.com")
conn.sock = FakeSocket(body)
conn.request("GET", "/")
with self.assertRaisesRegex(
client.HTTPException, f"got more than {client._MAXHEADERS} headers"
):
response = conn.getresponse()
with self.subTest(max_headers=None):
conn = client.HTTPConnection(
"example.com", max_response_headers=max_headers
)
conn.sock = FakeSocket(body)
conn.request("GET", "/")
response = conn.getresponse()
response.read()
def test_max_connection_trailers(self):
# max_response_headers also limits trailer lines of a chunked
# response, which are read and discarded by read().
max_trailers = client._MAXHEADERS + 20
trailer_lines = "".join(
f"X-Trailer{i}: {i}\r\n" for i in range(max_trailers - 1)
)
body = chunked_start + last_chunk + trailer_lines + chunked_end
with self.subTest(max_response_headers=None):
conn = client.HTTPConnection("example.com")
conn.sock = FakeSocket(body)
conn.request("GET", "/")
response = conn.getresponse()
with self.assertRaisesRegex(
client.HTTPException,
f"got more than {client._MAXHEADERS} trailers",
):
response.read()
with self.subTest(max_response_headers=max_trailers):
conn = client.HTTPConnection(
"example.com", max_response_headers=max_trailers
)
conn.sock = FakeSocket(body)
conn.request("GET", "/")
response = conn.getresponse()
self.assertEqual(response.read(), chunked_expected)
class HttpMethodTests(TestCase):
def test_invalid_method_names(self):
methods = (
'GET\r',
'POST\n',
'PUT\n\r',
'POST\nValue',
'POST\nHOST:abc',
'GET\nrHost:abc\n',
'POST\rRemainder:\r',
'GET\rHOST:\n',
'\nPUT'
)
for method in methods:
with self.assertRaisesRegex(
ValueError, "method can't contain control characters"):
conn = client.HTTPConnection('example.com')
conn.sock = FakeSocket(None)
conn.request(method=method, url="/")
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_dir_with_added_behavior_on_status(self):
# see issue40084
self.assertTrue({'description', 'name', 'phrase', 'value'} <= set(dir(HTTPStatus(404))))
def test_simple_httpstatus(self):
class CheckedHTTPStatus(enum.IntEnum):
"""HTTP status codes and reason phrases
Status codes from the following RFCs are all observed:
* RFC 7231: Hypertext Transfer Protocol (HTTP/1.1), obsoletes 2616
* RFC 6585: Additional HTTP Status Codes
* RFC 3229: Delta encoding in HTTP
* RFC 4918: HTTP Extensions for WebDAV, obsoletes 2518
* RFC 5842: Binding Extensions to WebDAV
* RFC 7238: Permanent Redirect
* RFC 2295: Transparent Content Negotiation in HTTP
* RFC 2774: An HTTP Extension Framework
* RFC 7725: An HTTP Status Code to Report Legal Obstacles
* RFC 7540: Hypertext Transfer Protocol Version 2 (HTTP/2)
* RFC 2324: Hyper Text Coffee Pot Control Protocol (HTCPCP/1.0)
* RFC 8297: An HTTP Status Code for Indicating Hints
* RFC 8470: Using Early Data in HTTP
"""
def __new__(cls, value, phrase, description=''):
obj = int.__new__(cls, value)
obj._value_ = value
obj.phrase = phrase
obj.description = description
return obj
@property
def is_informational(self):
return 100 <= self <= 199
@property
def is_success(self):
return 200 <= self <= 299
@property
def is_redirection(self):
return 300 <= self <= 399
@property
def is_client_error(self):
return 400 <= self <= 499
@property
def is_server_error(self):
return 500 <= self <= 599
# informational
CONTINUE = 100, 'Continue', 'Request received, please continue'
SWITCHING_PROTOCOLS = (101, 'Switching Protocols',
'Switching to new protocol; obey Upgrade header')
PROCESSING = 102, 'Processing', 'Server is processing the request'
EARLY_HINTS = (103, 'Early Hints',
'Headers sent to prepare for the response')
# success
OK = 200, 'OK', 'Request fulfilled, document follows'
CREATED = 201, 'Created', 'Document created, URL follows'
ACCEPTED = (202, 'Accepted',
'Request accepted, processing continues off-line')
NON_AUTHORITATIVE_INFORMATION = (203,
'Non-Authoritative Information', 'Request fulfilled from cache')
NO_CONTENT = 204, 'No Content', 'Request fulfilled, nothing follows'
RESET_CONTENT = 205, 'Reset Content', 'Clear input form for further input'
PARTIAL_CONTENT = 206, 'Partial Content', 'Partial content follows'
MULTI_STATUS = (207, 'Multi-Status',
'Response contains multiple statuses in the body')
ALREADY_REPORTED = (208, 'Already Reported',
'Operation has already been reported')
IM_USED = 226, 'IM Used', 'Request completed using instance manipulations'
# redirection
MULTIPLE_CHOICES = (300, 'Multiple Choices',
'Object has several resources -- see URI list')
MOVED_PERMANENTLY = (301, 'Moved Permanently',
'Object moved permanently -- see URI list')
FOUND = 302, 'Found', 'Object moved temporarily -- see URI list'
SEE_OTHER = 303, 'See Other', 'Object moved -- see Method and URL list'
NOT_MODIFIED = (304, 'Not Modified',
'Document has not changed since given time')
USE_PROXY = (305, 'Use Proxy',
'You must use proxy specified in Location to access this resource')
TEMPORARY_REDIRECT = (307, 'Temporary Redirect',
'Object moved temporarily -- see URI list')
PERMANENT_REDIRECT = (308, 'Permanent Redirect',
'Object moved permanently -- see URI list')
# client error
BAD_REQUEST = (400, 'Bad Request',
'Bad request syntax or unsupported method')
UNAUTHORIZED = (401, 'Unauthorized',
'No permission -- see authorization schemes')
PAYMENT_REQUIRED = (402, 'Payment Required',
'No payment -- see charging schemes')
FORBIDDEN = (403, 'Forbidden',
'Request forbidden -- authorization will not help')
NOT_FOUND = (404, 'Not Found',
'Nothing matches the given URI')
METHOD_NOT_ALLOWED = (405, 'Method Not Allowed',
'Specified method is invalid for this resource')
NOT_ACCEPTABLE = (406, 'Not Acceptable',
'URI not available in preferred format')
PROXY_AUTHENTICATION_REQUIRED = (407,
'Proxy Authentication Required',
'You must authenticate with this proxy before proceeding')
REQUEST_TIMEOUT = (408, 'Request Timeout',
'Request timed out; try again later')
CONFLICT = 409, 'Conflict', 'Request conflict'
GONE = (410, 'Gone',
'URI no longer exists and has been permanently removed')
LENGTH_REQUIRED = (411, 'Length Required',
'Client must specify Content-Length')
PRECONDITION_FAILED = (412, 'Precondition Failed',
'Precondition in headers is false')
CONTENT_TOO_LARGE = (413, 'Content Too Large',
'Content is too large')
REQUEST_ENTITY_TOO_LARGE = CONTENT_TOO_LARGE
URI_TOO_LONG = (414, 'URI Too Long', 'URI is too long')
REQUEST_URI_TOO_LONG = URI_TOO_LONG
UNSUPPORTED_MEDIA_TYPE = (415, 'Unsupported Media Type',
'Entity body in unsupported format')
RANGE_NOT_SATISFIABLE = (416,
'Range Not Satisfiable',
'Cannot satisfy request range')
REQUESTED_RANGE_NOT_SATISFIABLE = RANGE_NOT_SATISFIABLE
EXPECTATION_FAILED = (417, 'Expectation Failed',
'Expect condition could not be satisfied')
IM_A_TEAPOT = (418, 'I\'m a Teapot',
'Server refuses to brew coffee because it is a teapot')
MISDIRECTED_REQUEST = (421, 'Misdirected Request',
'Server is not able to produce a response')
UNPROCESSABLE_CONTENT = (422, 'Unprocessable Content',
'Server is not able to process the contained instructions')
UNPROCESSABLE_ENTITY = UNPROCESSABLE_CONTENT
LOCKED = 423, 'Locked', 'Resource of a method is locked'
FAILED_DEPENDENCY = (424, 'Failed Dependency',
'Dependent action of the request failed')
TOO_EARLY = (425, 'Too Early',
'Server refuses to process a request that might be replayed')
UPGRADE_REQUIRED = (426, 'Upgrade Required',
'Server refuses to perform the request using the current protocol')
PRECONDITION_REQUIRED = (428, 'Precondition Required',
'The origin server requires the request to be conditional')
TOO_MANY_REQUESTS = (429, 'Too Many Requests',
'The user has sent too many requests in '
'a given amount of time ("rate limiting")')
REQUEST_HEADER_FIELDS_TOO_LARGE = (431,
'Request Header Fields Too Large',
'The server is unwilling to process the request because its header '
'fields are too large')
UNAVAILABLE_FOR_LEGAL_REASONS = (451,
'Unavailable For Legal Reasons',
'The server is denying access to the '
'resource as a consequence of a legal demand')
# server errors
INTERNAL_SERVER_ERROR = (500, 'Internal Server Error',
'Server got itself in trouble')
NOT_IMPLEMENTED = (501, 'Not Implemented',
'Server does not support this operation')
BAD_GATEWAY = (502, 'Bad Gateway',
'Invalid responses from another server/proxy')
SERVICE_UNAVAILABLE = (503, 'Service Unavailable',
'The server cannot process the request due to a high load')
GATEWAY_TIMEOUT = (504, 'Gateway Timeout',
'The gateway server did not receive a timely response')
HTTP_VERSION_NOT_SUPPORTED = (505, 'HTTP Version Not Supported',
'Cannot fulfill request')
VARIANT_ALSO_NEGOTIATES = (506, 'Variant Also Negotiates',
'Server has an internal configuration error')
INSUFFICIENT_STORAGE = (507, 'Insufficient Storage',
'Server is not able to store the representation')
LOOP_DETECTED = (508, 'Loop Detected',
'Server encountered an infinite loop while processing a request')
NOT_EXTENDED = (510, 'Not Extended',
'Request does not meet the resource access policy')
NETWORK_AUTHENTICATION_REQUIRED = (511,
'Network Authentication Required',
'The client needs to authenticate to gain network access')
enum._test_simple_enum(CheckedHTTPStatus, HTTPStatus)
def test_httpstatus_range(self):
"""Checks that the statuses are in the 100-599 range"""
for member in HTTPStatus.__members__.values():
self.assertGreaterEqual(member, 100)
self.assertLessEqual(member, 599)
def test_httpstatus_category(self):
"""Checks that the statuses belong to the standard categories"""
categories = (
((100, 199), "is_informational"),
((200, 299), "is_success"),
((300, 399), "is_redirection"),
((400, 499), "is_client_error"),
((500, 599), "is_server_error"),
)
for member in HTTPStatus.__members__.values():
for (lower, upper), category in categories:
category_indicator = getattr(member, category)
if lower <= member <= upper:
self.assertTrue(category_indicator)
else:
self.assertFalse(category_indicator)
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_past_end(self):
# if we have Content-Length, clip reads to the end
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(10), b'Text')
self.assertTrue(resp.isclosed())
self.assertFalse(resp.closed)
resp.close()
self.assertTrue(resp.closed)
def test_partial_readintos_past_end(self):
# if we have Content-Length, clip readintos to the end
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(10)
n = resp.readinto(b)
self.assertEqual(n, 4)
self.assertEqual(bytes(b)[:4], b'Text')
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')