upgrade requests to v2.10.0

This commit is contained in:
Alan Hamlett 2016-05-21 11:55:10 +02:00
parent adfcfb0ae5
commit 724a841193
28 changed files with 623 additions and 156 deletions

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@ -36,14 +36,14 @@ usage:
The other HTTP methods are supported - see `requests.api`. Full documentation
is at <http://python-requests.org>.
:copyright: (c) 2015 by Kenneth Reitz.
:copyright: (c) 2016 by Kenneth Reitz.
:license: Apache 2.0, see LICENSE for more details.
"""
__title__ = 'requests'
__version__ = '2.9.1'
__build__ = 0x020901
__version__ = '2.10.0'
__build__ = 0x021000
__author__ = 'Kenneth Reitz'
__license__ = 'Apache 2.0'
__copyright__ = 'Copyright 2016 Kenneth Reitz'
@ -55,6 +55,12 @@ try:
except ImportError:
pass
import warnings
# urllib3's DependencyWarnings should be silenced.
from .packages.urllib3.exceptions import DependencyWarning
warnings.simplefilter('ignore', DependencyWarning)
from . import utils
from .models import Request, Response, PreparedRequest
from .api import request, get, head, post, patch, put, delete, options
@ -63,7 +69,7 @@ from .status_codes import codes
from .exceptions import (
RequestException, Timeout, URLRequired,
TooManyRedirects, HTTPError, ConnectionError,
FileModeWarning,
FileModeWarning, ConnectTimeout, ReadTimeout
)
# Set default logging handler to avoid "No handler found" warnings.

View File

@ -19,7 +19,7 @@ from .packages.urllib3.util.retry import Retry
from .compat import urlparse, basestring
from .utils import (DEFAULT_CA_BUNDLE_PATH, get_encoding_from_headers,
prepend_scheme_if_needed, get_auth_from_url, urldefragauth,
select_proxy)
select_proxy, to_native_string)
from .structures import CaseInsensitiveDict
from .packages.urllib3.exceptions import ClosedPoolError
from .packages.urllib3.exceptions import ConnectTimeoutError
@ -33,9 +33,15 @@ from .packages.urllib3.exceptions import SSLError as _SSLError
from .packages.urllib3.exceptions import ResponseError
from .cookies import extract_cookies_to_jar
from .exceptions import (ConnectionError, ConnectTimeout, ReadTimeout, SSLError,
ProxyError, RetryError)
ProxyError, RetryError, InvalidSchema)
from .auth import _basic_auth_str
try:
from .packages.urllib3.contrib.socks import SOCKSProxyManager
except ImportError:
def SOCKSProxyManager(*args, **kwargs):
raise InvalidSchema("Missing dependencies for SOCKS support.")
DEFAULT_POOLBLOCK = False
DEFAULT_POOLSIZE = 10
DEFAULT_RETRIES = 0
@ -149,9 +155,22 @@ class HTTPAdapter(BaseAdapter):
:param proxy_kwargs: Extra keyword arguments used to configure the Proxy Manager.
:returns: ProxyManager
"""
if not proxy in self.proxy_manager:
if proxy in self.proxy_manager:
manager = self.proxy_manager[proxy]
elif proxy.lower().startswith('socks'):
username, password = get_auth_from_url(proxy)
manager = self.proxy_manager[proxy] = SOCKSProxyManager(
proxy,
username=username,
password=password,
num_pools=self._pool_connections,
maxsize=self._pool_maxsize,
block=self._pool_block,
**proxy_kwargs
)
else:
proxy_headers = self.proxy_headers(proxy)
self.proxy_manager[proxy] = proxy_from_url(
manager = self.proxy_manager[proxy] = proxy_from_url(
proxy,
proxy_headers=proxy_headers,
num_pools=self._pool_connections,
@ -159,7 +178,7 @@ class HTTPAdapter(BaseAdapter):
block=self._pool_block,
**proxy_kwargs)
return self.proxy_manager[proxy]
return manager
def cert_verify(self, conn, url, verify, cert):
"""Verify a SSL certificate. This method should not be called from user
@ -264,10 +283,12 @@ class HTTPAdapter(BaseAdapter):
def close(self):
"""Disposes of any internal state.
Currently, this just closes the PoolManager, which closes pooled
connections.
Currently, this closes the PoolManager and any active ProxyManager,
which closes any pooled connections.
"""
self.poolmanager.clear()
for proxy in self.proxy_manager.values():
proxy.clear()
def request_url(self, request, proxies):
"""Obtain the url to use when making the final request.
@ -284,10 +305,16 @@ class HTTPAdapter(BaseAdapter):
"""
proxy = select_proxy(request.url, proxies)
scheme = urlparse(request.url).scheme
if proxy and scheme != 'https':
is_proxied_http_request = (proxy and scheme != 'https')
using_socks_proxy = False
if proxy:
proxy_scheme = urlparse(proxy).scheme.lower()
using_socks_proxy = proxy_scheme.startswith('socks')
url = request.path_url
if is_proxied_http_request and not using_socks_proxy:
url = urldefragauth(request.url)
else:
url = request.path_url
return url
@ -434,6 +461,9 @@ class HTTPAdapter(BaseAdapter):
if isinstance(e.reason, ResponseError):
raise RetryError(e, request=request)
if isinstance(e.reason, _ProxyError):
raise ProxyError(e, request=request)
raise ConnectionError(e, request=request)
except ClosedPoolError as e:

View File

@ -24,7 +24,11 @@ def request(method, url, **kwargs):
:param json: (optional) json data to send in the body of the :class:`Request`.
:param headers: (optional) Dictionary of HTTP Headers to send with the :class:`Request`.
:param cookies: (optional) Dict or CookieJar object to send with the :class:`Request`.
:param files: (optional) Dictionary of ``'name': file-like-objects`` (or ``{'name': ('filename', fileobj)}``) for multipart encoding upload.
:param files: (optional) Dictionary of ``'name': file-like-objects`` (or ``{'name': file-tuple}``) for multipart encoding upload.
``file-tuple`` can be a 2-tuple ``('filename', fileobj)``, 3-tuple ``('filename', fileobj, 'content_type')``
or a 4-tuple ``('filename', fileobj, 'content_type', custom_headers)``, where ``'content-type'`` is a string
defining the content type of the given file and ``custom_headers`` a dict-like object containing additional headers
to add for the file.
:param auth: (optional) Auth tuple to enable Basic/Digest/Custom HTTP Auth.
:param timeout: (optional) How long to wait for the server to send data
before giving up, as a float, or a :ref:`(connect timeout, read

View File

@ -93,6 +93,7 @@ class HTTPDigestAuth(AuthBase):
qop = self._thread_local.chal.get('qop')
algorithm = self._thread_local.chal.get('algorithm')
opaque = self._thread_local.chal.get('opaque')
hash_utf8 = None
if algorithm is None:
_algorithm = 'MD5'

View File

@ -103,8 +103,10 @@ class RequestEncodingMixin(object):
"""Build the body for a multipart/form-data request.
Will successfully encode files when passed as a dict or a list of
2-tuples. Order is retained if data is a list of 2-tuples but arbitrary
tuples. Order is retained if data is a list of tuples but arbitrary
if parameters are supplied as a dict.
The tuples may be 2-tuples (filename, fileobj), 3-tuples (filename, fileobj, contentype)
or 4-tuples (filename, fileobj, contentype, custom_headers).
"""
if (not files):
@ -463,9 +465,11 @@ class PreparedRequest(RequestEncodingMixin, RequestHooksMixin):
def prepare_content_length(self, body):
if hasattr(body, 'seek') and hasattr(body, 'tell'):
curr_pos = body.tell()
body.seek(0, 2)
self.headers['Content-Length'] = builtin_str(body.tell())
body.seek(0, 0)
end_pos = body.tell()
self.headers['Content-Length'] = builtin_str(max(0, end_pos - curr_pos))
body.seek(curr_pos, 0)
elif body is not None:
l = super_len(body)
if l:
@ -788,7 +792,7 @@ class Response(object):
:param \*\*kwargs: Optional arguments that ``json.loads`` takes.
"""
if not self.encoding and len(self.content) > 3:
if not self.encoding and self.content and len(self.content) > 3:
# No encoding set. JSON RFC 4627 section 3 states we should expect
# UTF-8, -16 or -32. Detect which one to use; If the detection or
# decoding fails, fall back to `self.text` (using chardet to make

View File

@ -32,7 +32,7 @@ except ImportError:
__author__ = 'Andrey Petrov (andrey.petrov@shazow.net)'
__license__ = 'MIT'
__version__ = '1.13.1'
__version__ = '1.15.1'
__all__ = (
'HTTPConnectionPool',
@ -68,22 +68,25 @@ def add_stderr_logger(level=logging.DEBUG):
handler.setFormatter(logging.Formatter('%(asctime)s %(levelname)s %(message)s'))
logger.addHandler(handler)
logger.setLevel(level)
logger.debug('Added a stderr logging handler to logger: %s' % __name__)
logger.debug('Added a stderr logging handler to logger: %s', __name__)
return handler
# ... Clean up.
del NullHandler
# All warning filters *must* be appended unless you're really certain that they
# shouldn't be: otherwise, it's very hard for users to use most Python
# mechanisms to silence them.
# SecurityWarning's always go off by default.
warnings.simplefilter('always', exceptions.SecurityWarning, append=True)
# SubjectAltNameWarning's should go off once per host
warnings.simplefilter('default', exceptions.SubjectAltNameWarning)
warnings.simplefilter('default', exceptions.SubjectAltNameWarning, append=True)
# InsecurePlatformWarning's don't vary between requests, so we keep it default.
warnings.simplefilter('default', exceptions.InsecurePlatformWarning,
append=True)
# SNIMissingWarnings should go off only once.
warnings.simplefilter('default', exceptions.SNIMissingWarning)
warnings.simplefilter('default', exceptions.SNIMissingWarning, append=True)
def disable_warnings(category=exceptions.HTTPWarning):

View File

@ -134,7 +134,7 @@ class HTTPHeaderDict(MutableMapping):
def __init__(self, headers=None, **kwargs):
super(HTTPHeaderDict, self).__init__()
self._container = {}
self._container = OrderedDict()
if headers is not None:
if isinstance(headers, HTTPHeaderDict):
self._copy_from(headers)

View File

@ -1,5 +1,6 @@
from __future__ import absolute_import
import datetime
import logging
import os
import sys
import socket
@ -38,7 +39,7 @@ from .exceptions import (
SubjectAltNameWarning,
SystemTimeWarning,
)
from .packages.ssl_match_hostname import match_hostname
from .packages.ssl_match_hostname import match_hostname, CertificateError
from .util.ssl_ import (
resolve_cert_reqs,
@ -50,6 +51,10 @@ from .util.ssl_ import (
from .util import connection
from ._collections import HTTPHeaderDict
log = logging.getLogger(__name__)
port_by_scheme = {
'http': 80,
'https': 443,
@ -162,6 +167,38 @@ class HTTPConnection(_HTTPConnection, object):
conn = self._new_conn()
self._prepare_conn(conn)
def request_chunked(self, method, url, body=None, headers=None):
"""
Alternative to the common request method, which sends the
body with chunked encoding and not as one block
"""
headers = HTTPHeaderDict(headers if headers is not None else {})
skip_accept_encoding = 'accept-encoding' in headers
self.putrequest(method, url, skip_accept_encoding=skip_accept_encoding)
for header, value in headers.items():
self.putheader(header, value)
if 'transfer-encoding' not in headers:
self.putheader('Transfer-Encoding', 'chunked')
self.endheaders()
if body is not None:
stringish_types = six.string_types + (six.binary_type,)
if isinstance(body, stringish_types):
body = (body,)
for chunk in body:
if not chunk:
continue
if not isinstance(chunk, six.binary_type):
chunk = chunk.encode('utf8')
len_str = hex(len(chunk))[2:]
self.send(len_str.encode('utf-8'))
self.send(b'\r\n')
self.send(chunk)
self.send(b'\r\n')
# After the if clause, to always have a closed body
self.send(b'0\r\n\r\n')
class HTTPSConnection(HTTPConnection):
default_port = port_by_scheme['https']
@ -265,21 +302,26 @@ class VerifiedHTTPSConnection(HTTPSConnection):
'for details.)'.format(hostname)),
SubjectAltNameWarning
)
# In case the hostname is an IPv6 address, strip the square
# brackets from it before using it to validate. This is because
# a certificate with an IPv6 address in it won't have square
# brackets around that address. Sadly, match_hostname won't do this
# for us: it expects the plain host part without any extra work
# that might have been done to make it palatable to httplib.
asserted_hostname = self.assert_hostname or hostname
asserted_hostname = asserted_hostname.strip('[]')
match_hostname(cert, asserted_hostname)
_match_hostname(cert, self.assert_hostname or hostname)
self.is_verified = (resolved_cert_reqs == ssl.CERT_REQUIRED or
self.assert_fingerprint is not None)
def _match_hostname(cert, asserted_hostname):
try:
match_hostname(cert, asserted_hostname)
except CertificateError as e:
log.error(
'Certificate did not match expected hostname: %s. '
'Certificate: %s', asserted_hostname, cert
)
# Add cert to exception and reraise so client code can inspect
# the cert when catching the exception, if they want to
e._peer_cert = cert
raise
if ssl:
# Make a copy for testing.
UnverifiedHTTPSConnection = HTTPSConnection

View File

@ -69,7 +69,13 @@ class ConnectionPool(object):
if not host:
raise LocationValueError("No host specified.")
self.host = host
# httplib doesn't like it when we include brackets in ipv6 addresses
# Specifically, if we include brackets but also pass the port then
# httplib crazily doubles up the square brackets on the Host header.
# Instead, we need to make sure we never pass ``None`` as the port.
# However, for backward compatibility reasons we can't actually
# *assert* that.
self.host = host.strip('[]')
self.port = port
def __str__(self):
@ -203,8 +209,8 @@ class HTTPConnectionPool(ConnectionPool, RequestMethods):
Return a fresh :class:`HTTPConnection`.
"""
self.num_connections += 1
log.info("Starting new HTTP connection (%d): %s" %
(self.num_connections, self.host))
log.info("Starting new HTTP connection (%d): %s",
self.num_connections, self.host)
conn = self.ConnectionCls(host=self.host, port=self.port,
timeout=self.timeout.connect_timeout,
@ -239,7 +245,7 @@ class HTTPConnectionPool(ConnectionPool, RequestMethods):
# If this is a persistent connection, check if it got disconnected
if conn and is_connection_dropped(conn):
log.info("Resetting dropped connection: %s" % self.host)
log.info("Resetting dropped connection: %s", self.host)
conn.close()
if getattr(conn, 'auto_open', 1) == 0:
# This is a proxied connection that has been mutated by
@ -272,7 +278,7 @@ class HTTPConnectionPool(ConnectionPool, RequestMethods):
except Full:
# This should never happen if self.block == True
log.warning(
"Connection pool is full, discarding connection: %s" %
"Connection pool is full, discarding connection: %s",
self.host)
# Connection never got put back into the pool, close it.
@ -318,7 +324,7 @@ class HTTPConnectionPool(ConnectionPool, RequestMethods):
if 'timed out' in str(err) or 'did not complete (read)' in str(err): # Python 2.6
raise ReadTimeoutError(self, url, "Read timed out. (read timeout=%s)" % timeout_value)
def _make_request(self, conn, method, url, timeout=_Default,
def _make_request(self, conn, method, url, timeout=_Default, chunked=False,
**httplib_request_kw):
"""
Perform a request on a given urllib connection object taken from our
@ -350,7 +356,10 @@ class HTTPConnectionPool(ConnectionPool, RequestMethods):
# conn.request() calls httplib.*.request, not the method in
# urllib3.request. It also calls makefile (recv) on the socket.
conn.request(method, url, **httplib_request_kw)
if chunked:
conn.request_chunked(method, url, **httplib_request_kw)
else:
conn.request(method, url, **httplib_request_kw)
# Reset the timeout for the recv() on the socket
read_timeout = timeout_obj.read_timeout
@ -382,9 +391,8 @@ class HTTPConnectionPool(ConnectionPool, RequestMethods):
# AppEngine doesn't have a version attr.
http_version = getattr(conn, '_http_vsn_str', 'HTTP/?')
log.debug("\"%s %s %s\" %s %s" % (method, url, http_version,
httplib_response.status,
httplib_response.length))
log.debug("\"%s %s %s\" %s %s", method, url, http_version,
httplib_response.status, httplib_response.length)
try:
assert_header_parsing(httplib_response.msg)
@ -435,7 +443,8 @@ class HTTPConnectionPool(ConnectionPool, RequestMethods):
def urlopen(self, method, url, body=None, headers=None, retries=None,
redirect=True, assert_same_host=True, timeout=_Default,
pool_timeout=None, release_conn=None, **response_kw):
pool_timeout=None, release_conn=None, chunked=False,
**response_kw):
"""
Get a connection from the pool and perform an HTTP request. This is the
lowest level call for making a request, so you'll need to specify all
@ -512,6 +521,11 @@ class HTTPConnectionPool(ConnectionPool, RequestMethods):
back into the pool. If None, it takes the value of
``response_kw.get('preload_content', True)``.
:param chunked:
If True, urllib3 will send the body using chunked transfer
encoding. Otherwise, urllib3 will send the body using the standard
content-length form. Defaults to False.
:param \**response_kw:
Additional parameters are passed to
:meth:`urllib3.response.HTTPResponse.from_httplib`
@ -542,6 +556,10 @@ class HTTPConnectionPool(ConnectionPool, RequestMethods):
# complains about UnboundLocalError.
err = None
# Keep track of whether we cleanly exited the except block. This
# ensures we do proper cleanup in finally.
clean_exit = False
try:
# Request a connection from the queue.
timeout_obj = self._get_timeout(timeout)
@ -556,13 +574,14 @@ class HTTPConnectionPool(ConnectionPool, RequestMethods):
# Make the request on the httplib connection object.
httplib_response = self._make_request(conn, method, url,
timeout=timeout_obj,
body=body, headers=headers)
body=body, headers=headers,
chunked=chunked)
# If we're going to release the connection in ``finally:``, then
# the request doesn't need to know about the connection. Otherwise
# the response doesn't need to know about the connection. Otherwise
# it will also try to release it and we'll have a double-release
# mess.
response_conn = not release_conn and conn
response_conn = conn if not release_conn else None
# Import httplib's response into our own wrapper object
response = HTTPResponse.from_httplib(httplib_response,
@ -570,10 +589,8 @@ class HTTPConnectionPool(ConnectionPool, RequestMethods):
connection=response_conn,
**response_kw)
# else:
# The connection will be put back into the pool when
# ``response.release_conn()`` is called (implicitly by
# ``response.read()``)
# Everything went great!
clean_exit = True
except Empty:
# Timed out by queue.
@ -583,22 +600,19 @@ class HTTPConnectionPool(ConnectionPool, RequestMethods):
# Close the connection. If a connection is reused on which there
# was a Certificate error, the next request will certainly raise
# another Certificate error.
conn = conn and conn.close()
release_conn = True
clean_exit = False
raise SSLError(e)
except SSLError:
# Treat SSLError separately from BaseSSLError to preserve
# traceback.
conn = conn and conn.close()
release_conn = True
clean_exit = False
raise
except (TimeoutError, HTTPException, SocketError, ProtocolError) as e:
# Discard the connection for these exceptions. It will be
# be replaced during the next _get_conn() call.
conn = conn and conn.close()
release_conn = True
clean_exit = False
if isinstance(e, (SocketError, NewConnectionError)) and self.proxy:
e = ProxyError('Cannot connect to proxy.', e)
@ -613,6 +627,14 @@ class HTTPConnectionPool(ConnectionPool, RequestMethods):
err = e
finally:
if not clean_exit:
# We hit some kind of exception, handled or otherwise. We need
# to throw the connection away unless explicitly told not to.
# Close the connection, set the variable to None, and make sure
# we put the None back in the pool to avoid leaking it.
conn = conn and conn.close()
release_conn = True
if release_conn:
# Put the connection back to be reused. If the connection is
# expired then it will be None, which will get replaced with a
@ -622,7 +644,7 @@ class HTTPConnectionPool(ConnectionPool, RequestMethods):
if not conn:
# Try again
log.warning("Retrying (%r) after connection "
"broken by '%r': %s" % (retries, err, url))
"broken by '%r': %s", retries, err, url)
return self.urlopen(method, url, body, headers, retries,
redirect, assert_same_host,
timeout=timeout, pool_timeout=pool_timeout,
@ -644,7 +666,7 @@ class HTTPConnectionPool(ConnectionPool, RequestMethods):
raise
return response
log.info("Redirecting %s -> %s" % (url, redirect_location))
log.info("Redirecting %s -> %s", url, redirect_location)
return self.urlopen(
method, redirect_location, body, headers,
retries=retries, redirect=redirect,
@ -654,9 +676,17 @@ class HTTPConnectionPool(ConnectionPool, RequestMethods):
# Check if we should retry the HTTP response.
if retries.is_forced_retry(method, status_code=response.status):
retries = retries.increment(method, url, response=response, _pool=self)
try:
retries = retries.increment(method, url, response=response, _pool=self)
except MaxRetryError:
if retries.raise_on_status:
# Release the connection for this response, since we're not
# returning it to be released manually.
response.release_conn()
raise
return response
retries.sleep()
log.info("Forced retry: %s" % url)
log.info("Forced retry: %s", url)
return self.urlopen(
method, url, body, headers,
retries=retries, redirect=redirect,
@ -742,7 +772,7 @@ class HTTPSConnectionPool(HTTPConnectionPool):
except AttributeError: # Platform-specific: Python 2.6
set_tunnel = conn._set_tunnel
if sys.version_info <= (2, 6, 4) and not self.proxy_headers: # Python 2.6.4 and older
if sys.version_info <= (2, 6, 4) and not self.proxy_headers: # Python 2.6.4 and older
set_tunnel(self.host, self.port)
else:
set_tunnel(self.host, self.port, self.proxy_headers)
@ -754,8 +784,8 @@ class HTTPSConnectionPool(HTTPConnectionPool):
Return a fresh :class:`httplib.HTTPSConnection`.
"""
self.num_connections += 1
log.info("Starting new HTTPS connection (%d): %s"
% (self.num_connections, self.host))
log.info("Starting new HTTPS connection (%d): %s",
self.num_connections, self.host)
if not self.ConnectionCls or self.ConnectionCls is DummyConnection:
raise SSLError("Can't connect to HTTPS URL because the SSL "
@ -812,6 +842,7 @@ def connection_from_url(url, **kw):
>>> r = conn.request('GET', '/')
"""
scheme, host, port = get_host(url)
port = port or port_by_scheme.get(scheme, 80)
if scheme == 'https':
return HTTPSConnectionPool(host, port=port, **kw)
else:

View File

@ -144,7 +144,7 @@ class AppEngineManager(RequestMethods):
if retries.is_forced_retry(method, status_code=http_response.status):
retries = retries.increment(
method, url, response=http_response, _pool=self)
log.info("Forced retry: %s" % url)
log.info("Forced retry: %s", url)
retries.sleep()
return self.urlopen(
method, url,
@ -164,6 +164,14 @@ class AppEngineManager(RequestMethods):
if content_encoding == 'deflate':
del urlfetch_resp.headers['content-encoding']
transfer_encoding = urlfetch_resp.headers.get('transfer-encoding')
# We have a full response's content,
# so let's make sure we don't report ourselves as chunked data.
if transfer_encoding == 'chunked':
encodings = transfer_encoding.split(",")
encodings.remove('chunked')
urlfetch_resp.headers['transfer-encoding'] = ','.join(encodings)
return HTTPResponse(
# In order for decoding to work, we must present the content as
# a file-like object.
@ -177,7 +185,7 @@ class AppEngineManager(RequestMethods):
if timeout is Timeout.DEFAULT_TIMEOUT:
return 5 # 5s is the default timeout for URLFetch.
if isinstance(timeout, Timeout):
if timeout.read is not timeout.connect:
if timeout._read is not timeout._connect:
warnings.warn(
"URLFetch does not support granular timeout settings, "
"reverting to total timeout.", AppEnginePlatformWarning)

View File

@ -43,8 +43,8 @@ class NTLMConnectionPool(HTTPSConnectionPool):
# Performs the NTLM handshake that secures the connection. The socket
# must be kept open while requests are performed.
self.num_connections += 1
log.debug('Starting NTLM HTTPS connection no. %d: https://%s%s' %
(self.num_connections, self.host, self.authurl))
log.debug('Starting NTLM HTTPS connection no. %d: https://%s%s',
self.num_connections, self.host, self.authurl)
headers = {}
headers['Connection'] = 'Keep-Alive'
@ -56,13 +56,13 @@ class NTLMConnectionPool(HTTPSConnectionPool):
# Send negotiation message
headers[req_header] = (
'NTLM %s' % ntlm.create_NTLM_NEGOTIATE_MESSAGE(self.rawuser))
log.debug('Request headers: %s' % headers)
log.debug('Request headers: %s', headers)
conn.request('GET', self.authurl, None, headers)
res = conn.getresponse()
reshdr = dict(res.getheaders())
log.debug('Response status: %s %s' % (res.status, res.reason))
log.debug('Response headers: %s' % reshdr)
log.debug('Response data: %s [...]' % res.read(100))
log.debug('Response status: %s %s', res.status, res.reason)
log.debug('Response headers: %s', reshdr)
log.debug('Response data: %s [...]', res.read(100))
# Remove the reference to the socket, so that it can not be closed by
# the response object (we want to keep the socket open)
@ -87,12 +87,12 @@ class NTLMConnectionPool(HTTPSConnectionPool):
self.pw,
NegotiateFlags)
headers[req_header] = 'NTLM %s' % auth_msg
log.debug('Request headers: %s' % headers)
log.debug('Request headers: %s', headers)
conn.request('GET', self.authurl, None, headers)
res = conn.getresponse()
log.debug('Response status: %s %s' % (res.status, res.reason))
log.debug('Response headers: %s' % dict(res.getheaders()))
log.debug('Response data: %s [...]' % res.read()[:100])
log.debug('Response status: %s %s', res.status, res.reason)
log.debug('Response headers: %s', dict(res.getheaders()))
log.debug('Response data: %s [...]', res.read()[:100])
if res.status != 200:
if res.status == 401:
raise Exception('Server rejected request: wrong '

View File

@ -54,9 +54,17 @@ except SyntaxError as e:
import OpenSSL.SSL
from pyasn1.codec.der import decoder as der_decoder
from pyasn1.type import univ, constraint
from socket import _fileobject, timeout, error as SocketError
from socket import timeout, error as SocketError
try: # Platform-specific: Python 2
from socket import _fileobject
except ImportError: # Platform-specific: Python 3
_fileobject = None
from urllib3.packages.backports.makefile import backport_makefile
import ssl
import select
import six
from .. import connection
from .. import util
@ -90,7 +98,7 @@ _openssl_verify = {
OpenSSL.SSL.VERIFY_PEER + OpenSSL.SSL.VERIFY_FAIL_IF_NO_PEER_CERT,
}
DEFAULT_SSL_CIPHER_LIST = util.ssl_.DEFAULT_CIPHERS
DEFAULT_SSL_CIPHER_LIST = util.ssl_.DEFAULT_CIPHERS.encode('ascii')
# OpenSSL will only write 16K at a time
SSL_WRITE_BLOCKSIZE = 16384
@ -104,6 +112,7 @@ def inject_into_urllib3():
connection.ssl_wrap_socket = ssl_wrap_socket
util.HAS_SNI = HAS_SNI
util.IS_PYOPENSSL = True
def extract_from_urllib3():
@ -111,6 +120,7 @@ def extract_from_urllib3():
connection.ssl_wrap_socket = orig_connection_ssl_wrap_socket
util.HAS_SNI = orig_util_HAS_SNI
util.IS_PYOPENSSL = False
# Note: This is a slightly bug-fixed version of same from ndg-httpsclient.
@ -135,7 +145,7 @@ def get_subj_alt_name(peer_cert):
for i in range(peer_cert.get_extension_count()):
ext = peer_cert.get_extension(i)
ext_name = ext.get_short_name()
if ext_name != 'subjectAltName':
if ext_name != b'subjectAltName':
continue
# PyOpenSSL returns extension data in ASN.1 encoded form
@ -167,13 +177,17 @@ class WrappedSocket(object):
self.socket = socket
self.suppress_ragged_eofs = suppress_ragged_eofs
self._makefile_refs = 0
self._closed = False
def fileno(self):
return self.socket.fileno()
def makefile(self, mode, bufsize=-1):
self._makefile_refs += 1
return _fileobject(self, mode, bufsize, close=True)
# Copy-pasted from Python 3.5 source code
def _decref_socketios(self):
if self._makefile_refs > 0:
self._makefile_refs -= 1
if self._closed:
self.close()
def recv(self, *args, **kwargs):
try:
@ -182,7 +196,7 @@ class WrappedSocket(object):
if self.suppress_ragged_eofs and e.args == (-1, 'Unexpected EOF'):
return b''
else:
raise SocketError(e)
raise SocketError(str(e))
except OpenSSL.SSL.ZeroReturnError as e:
if self.connection.get_shutdown() == OpenSSL.SSL.RECEIVED_SHUTDOWN:
return b''
@ -198,6 +212,27 @@ class WrappedSocket(object):
else:
return data
def recv_into(self, *args, **kwargs):
try:
return self.connection.recv_into(*args, **kwargs)
except OpenSSL.SSL.SysCallError as e:
if self.suppress_ragged_eofs and e.args == (-1, 'Unexpected EOF'):
return 0
else:
raise SocketError(str(e))
except OpenSSL.SSL.ZeroReturnError as e:
if self.connection.get_shutdown() == OpenSSL.SSL.RECEIVED_SHUTDOWN:
return 0
else:
raise
except OpenSSL.SSL.WantReadError:
rd, wd, ed = select.select(
[self.socket], [], [], self.socket.gettimeout())
if not rd:
raise timeout('The read operation timed out')
else:
return self.recv_into(*args, **kwargs)
def settimeout(self, timeout):
return self.socket.settimeout(timeout)
@ -225,6 +260,7 @@ class WrappedSocket(object):
def close(self):
if self._makefile_refs < 1:
try:
self._closed = True
return self.connection.close()
except OpenSSL.SSL.Error:
return
@ -262,6 +298,16 @@ class WrappedSocket(object):
self._makefile_refs -= 1
if _fileobject: # Platform-specific: Python 2
def makefile(self, mode, bufsize=-1):
self._makefile_refs += 1
return _fileobject(self, mode, bufsize, close=True)
else: # Platform-specific: Python 3
makefile = backport_makefile
WrappedSocket.makefile = makefile
def _verify_callback(cnx, x509, err_no, err_depth, return_code):
return err_no == 0
@ -285,7 +331,7 @@ def ssl_wrap_socket(sock, keyfile=None, certfile=None, cert_reqs=None,
else:
ctx.set_default_verify_paths()
# Disable TLS compression to migitate CRIME attack (issue #309)
# Disable TLS compression to mitigate CRIME attack (issue #309)
OP_NO_COMPRESSION = 0x20000
ctx.set_options(OP_NO_COMPRESSION)
@ -293,6 +339,8 @@ def ssl_wrap_socket(sock, keyfile=None, certfile=None, cert_reqs=None,
ctx.set_cipher_list(DEFAULT_SSL_CIPHER_LIST)
cnx = OpenSSL.SSL.Connection(ctx, sock)
if isinstance(server_hostname, six.text_type): # Platform-specific: Python 3
server_hostname = server_hostname.encode('utf-8')
cnx.set_tlsext_host_name(server_hostname)
cnx.set_connect_state()
while True:

View File

@ -0,0 +1,172 @@
# -*- coding: utf-8 -*-
"""
SOCKS support for urllib3
~~~~~~~~~~~~~~~~~~~~~~~~~
This contrib module contains provisional support for SOCKS proxies from within
urllib3. This module supports SOCKS4 (specifically the SOCKS4A variant) and
SOCKS5. To enable its functionality, either install PySocks or install this
module with the ``socks`` extra.
Known Limitations:
- Currently PySocks does not support contacting remote websites via literal
IPv6 addresses. Any such connection attempt will fail.
- Currently PySocks does not support IPv6 connections to the SOCKS proxy. Any
such connection attempt will fail.
"""
from __future__ import absolute_import
try:
import socks
except ImportError:
import warnings
from ..exceptions import DependencyWarning
warnings.warn((
'SOCKS support in urllib3 requires the installation of optional '
'dependencies: specifically, PySocks. For more information, see '
'https://urllib3.readthedocs.org/en/latest/contrib.html#socks-proxies'
),
DependencyWarning
)
raise
from socket import error as SocketError, timeout as SocketTimeout
from ..connection import (
HTTPConnection, HTTPSConnection
)
from ..connectionpool import (
HTTPConnectionPool, HTTPSConnectionPool
)
from ..exceptions import ConnectTimeoutError, NewConnectionError
from ..poolmanager import PoolManager
from ..util.url import parse_url
try:
import ssl
except ImportError:
ssl = None
class SOCKSConnection(HTTPConnection):
"""
A plain-text HTTP connection that connects via a SOCKS proxy.
"""
def __init__(self, *args, **kwargs):
self._socks_options = kwargs.pop('_socks_options')
super(SOCKSConnection, self).__init__(*args, **kwargs)
def _new_conn(self):
"""
Establish a new connection via the SOCKS proxy.
"""
extra_kw = {}
if self.source_address:
extra_kw['source_address'] = self.source_address
if self.socket_options:
extra_kw['socket_options'] = self.socket_options
try:
conn = socks.create_connection(
(self.host, self.port),
proxy_type=self._socks_options['socks_version'],
proxy_addr=self._socks_options['proxy_host'],
proxy_port=self._socks_options['proxy_port'],
proxy_username=self._socks_options['username'],
proxy_password=self._socks_options['password'],
timeout=self.timeout,
**extra_kw
)
except SocketTimeout as e:
raise ConnectTimeoutError(
self, "Connection to %s timed out. (connect timeout=%s)" %
(self.host, self.timeout))
except socks.ProxyError as e:
# This is fragile as hell, but it seems to be the only way to raise
# useful errors here.
if e.socket_err:
error = e.socket_err
if isinstance(error, SocketTimeout):
raise ConnectTimeoutError(
self,
"Connection to %s timed out. (connect timeout=%s)" %
(self.host, self.timeout)
)
else:
raise NewConnectionError(
self,
"Failed to establish a new connection: %s" % error
)
else:
raise NewConnectionError(
self,
"Failed to establish a new connection: %s" % e
)
except SocketError as e: # Defensive: PySocks should catch all these.
raise NewConnectionError(
self, "Failed to establish a new connection: %s" % e)
return conn
# We don't need to duplicate the Verified/Unverified distinction from
# urllib3/connection.py here because the HTTPSConnection will already have been
# correctly set to either the Verified or Unverified form by that module. This
# means the SOCKSHTTPSConnection will automatically be the correct type.
class SOCKSHTTPSConnection(SOCKSConnection, HTTPSConnection):
pass
class SOCKSHTTPConnectionPool(HTTPConnectionPool):
ConnectionCls = SOCKSConnection
class SOCKSHTTPSConnectionPool(HTTPSConnectionPool):
ConnectionCls = SOCKSHTTPSConnection
class SOCKSProxyManager(PoolManager):
"""
A version of the urllib3 ProxyManager that routes connections via the
defined SOCKS proxy.
"""
pool_classes_by_scheme = {
'http': SOCKSHTTPConnectionPool,
'https': SOCKSHTTPSConnectionPool,
}
def __init__(self, proxy_url, username=None, password=None,
num_pools=10, headers=None, **connection_pool_kw):
parsed = parse_url(proxy_url)
if parsed.scheme == 'socks5':
socks_version = socks.PROXY_TYPE_SOCKS5
elif parsed.scheme == 'socks4':
socks_version = socks.PROXY_TYPE_SOCKS4
else:
raise ValueError(
"Unable to determine SOCKS version from %s" % proxy_url
)
self.proxy_url = proxy_url
socks_options = {
'socks_version': socks_version,
'proxy_host': parsed.host,
'proxy_port': parsed.port,
'username': username,
'password': password,
}
connection_pool_kw['_socks_options'] = socks_options
super(SOCKSProxyManager, self).__init__(
num_pools, headers, **connection_pool_kw
)
self.pool_classes_by_scheme = SOCKSProxyManager.pool_classes_by_scheme

View File

@ -180,6 +180,14 @@ class SNIMissingWarning(HTTPWarning):
pass
class DependencyWarning(HTTPWarning):
"""
Warned when an attempt is made to import a module with missing optional
dependencies.
"""
pass
class ResponseNotChunked(ProtocolError, ValueError):
"Response needs to be chunked in order to read it as chunks."
pass

View File

@ -36,11 +36,11 @@ def format_header_param(name, value):
result = '%s="%s"' % (name, value)
try:
result.encode('ascii')
except UnicodeEncodeError:
except (UnicodeEncodeError, UnicodeDecodeError):
pass
else:
return result
if not six.PY3: # Python 2:
if not six.PY3 and isinstance(value, six.text_type): # Python 2:
value = value.encode('utf-8')
value = email.utils.encode_rfc2231(value, 'utf-8')
value = '%s*=%s' % (name, value)

View File

@ -0,0 +1,53 @@
# -*- coding: utf-8 -*-
"""
backports.makefile
~~~~~~~~~~~~~~~~~~
Backports the Python 3 ``socket.makefile`` method for use with anything that
wants to create a "fake" socket object.
"""
import io
from socket import SocketIO
def backport_makefile(self, mode="r", buffering=None, encoding=None,
errors=None, newline=None):
"""
Backport of ``socket.makefile`` from Python 3.5.
"""
if not set(mode) <= set(["r", "w", "b"]):
raise ValueError(
"invalid mode %r (only r, w, b allowed)" % (mode,)
)
writing = "w" in mode
reading = "r" in mode or not writing
assert reading or writing
binary = "b" in mode
rawmode = ""
if reading:
rawmode += "r"
if writing:
rawmode += "w"
raw = SocketIO(self, rawmode)
self._makefile_refs += 1
if buffering is None:
buffering = -1
if buffering < 0:
buffering = io.DEFAULT_BUFFER_SIZE
if buffering == 0:
if not binary:
raise ValueError("unbuffered streams must be binary")
return raw
if reading and writing:
buffer = io.BufferedRWPair(raw, raw, buffering)
elif reading:
buffer = io.BufferedReader(raw, buffering)
else:
assert writing
buffer = io.BufferedWriter(raw, buffering)
if binary:
return buffer
text = io.TextIOWrapper(buffer, encoding, errors, newline)
text.mode = mode
return text

View File

@ -18,16 +18,16 @@ from .util.retry import Retry
__all__ = ['PoolManager', 'ProxyManager', 'proxy_from_url']
pool_classes_by_scheme = {
'http': HTTPConnectionPool,
'https': HTTPSConnectionPool,
}
log = logging.getLogger(__name__)
SSL_KEYWORDS = ('key_file', 'cert_file', 'cert_reqs', 'ca_certs',
'ssl_version', 'ca_cert_dir')
pool_classes_by_scheme = {
'http': HTTPConnectionPool,
'https': HTTPSConnectionPool,
}
class PoolManager(RequestMethods):
"""
@ -65,6 +65,9 @@ class PoolManager(RequestMethods):
self.pools = RecentlyUsedContainer(num_pools,
dispose_func=lambda p: p.close())
# Locally set the pool classes so other PoolManagers can override them.
self.pool_classes_by_scheme = pool_classes_by_scheme
def __enter__(self):
return self
@ -81,7 +84,7 @@ class PoolManager(RequestMethods):
by :meth:`connection_from_url` and companion methods. It is intended
to be overridden for customization.
"""
pool_cls = pool_classes_by_scheme[scheme]
pool_cls = self.pool_classes_by_scheme[scheme]
kwargs = self.connection_pool_kw
if scheme == 'http':
kwargs = self.connection_pool_kw.copy()
@ -186,7 +189,7 @@ class PoolManager(RequestMethods):
kw['retries'] = retries
kw['redirect'] = redirect
log.info("Redirecting %s -> %s" % (url, redirect_location))
log.info("Redirecting %s -> %s", url, redirect_location)
return self.urlopen(method, redirect_location, **kw)

View File

@ -221,6 +221,8 @@ class HTTPResponse(io.IOBase):
On exit, release the connection back to the pool.
"""
clean_exit = False
try:
try:
yield
@ -243,20 +245,27 @@ class HTTPResponse(io.IOBase):
# This includes IncompleteRead.
raise ProtocolError('Connection broken: %r' % e, e)
except Exception:
# The response may not be closed but we're not going to use it anymore
# so close it now to ensure that the connection is released back to the pool.
if self._original_response and not self._original_response.isclosed():
self._original_response.close()
# Closing the response may not actually be sufficient to close
# everything, so if we have a hold of the connection close that
# too.
if self._connection is not None:
self._connection.close()
raise
# If no exception is thrown, we should avoid cleaning up
# unnecessarily.
clean_exit = True
finally:
# If we didn't terminate cleanly, we need to throw away our
# connection.
if not clean_exit:
# The response may not be closed but we're not going to use it
# anymore so close it now to ensure that the connection is
# released back to the pool.
if self._original_response:
self._original_response.close()
# Closing the response may not actually be sufficient to close
# everything, so if we have a hold of the connection close that
# too.
if self._connection:
self._connection.close()
# If we hold the original response but it's closed now, we should
# return the connection back to the pool.
if self._original_response and self._original_response.isclosed():
self.release_conn()
@ -387,6 +396,9 @@ class HTTPResponse(io.IOBase):
if not self.closed:
self._fp.close()
if self._connection:
self._connection.close()
@property
def closed(self):
if self._fp is None:

View File

@ -6,6 +6,7 @@ from .response import is_fp_closed
from .ssl_ import (
SSLContext,
HAS_SNI,
IS_PYOPENSSL,
assert_fingerprint,
resolve_cert_reqs,
resolve_ssl_version,
@ -26,6 +27,7 @@ from .url import (
__all__ = (
'HAS_SNI',
'IS_PYOPENSSL',
'SSLContext',
'Retry',
'Timeout',

View File

@ -61,7 +61,7 @@ def assert_header_parsing(headers):
def is_response_to_head(response):
"""
Checks, wether a the request of a response has been a HEAD-request.
Checks whether the request of a response has been a HEAD-request.
Handles the quirks of AppEngine.
:param conn:

View File

@ -102,6 +102,11 @@ class Retry(object):
:param bool raise_on_redirect: Whether, if the number of redirects is
exhausted, to raise a MaxRetryError, or to return a response with a
response code in the 3xx range.
:param bool raise_on_status: Similar meaning to ``raise_on_redirect``:
whether we should raise an exception, or return a response,
if status falls in ``status_forcelist`` range and retries have
been exhausted.
"""
DEFAULT_METHOD_WHITELIST = frozenset([
@ -112,7 +117,8 @@ class Retry(object):
def __init__(self, total=10, connect=None, read=None, redirect=None,
method_whitelist=DEFAULT_METHOD_WHITELIST, status_forcelist=None,
backoff_factor=0, raise_on_redirect=True, _observed_errors=0):
backoff_factor=0, raise_on_redirect=True, raise_on_status=True,
_observed_errors=0):
self.total = total
self.connect = connect
@ -127,6 +133,7 @@ class Retry(object):
self.method_whitelist = method_whitelist
self.backoff_factor = backoff_factor
self.raise_on_redirect = raise_on_redirect
self.raise_on_status = raise_on_status
self._observed_errors = _observed_errors # TODO: use .history instead?
def new(self, **kw):
@ -137,6 +144,7 @@ class Retry(object):
status_forcelist=self.status_forcelist,
backoff_factor=self.backoff_factor,
raise_on_redirect=self.raise_on_redirect,
raise_on_status=self.raise_on_status,
_observed_errors=self._observed_errors,
)
params.update(kw)
@ -153,7 +161,7 @@ class Retry(object):
redirect = bool(redirect) and None
new_retries = cls(retries, redirect=redirect)
log.debug("Converted retries value: %r -> %r" % (retries, new_retries))
log.debug("Converted retries value: %r -> %r", retries, new_retries)
return new_retries
def get_backoff_time(self):
@ -272,7 +280,7 @@ class Retry(object):
if new_retry.is_exhausted():
raise MaxRetryError(_pool, url, error or ResponseError(cause))
log.debug("Incremented Retry for (url='%s'): %r" % (url, new_retry))
log.debug("Incremented Retry for (url='%s'): %r", url, new_retry)
return new_retry

View File

@ -12,6 +12,7 @@ from ..exceptions import SSLError, InsecurePlatformWarning, SNIMissingWarning
SSLContext = None
HAS_SNI = False
create_default_context = None
IS_PYOPENSSL = False
# Maps the length of a digest to a possible hash function producing this digest
HASHFUNC_MAP = {
@ -110,11 +111,12 @@ except ImportError:
)
self.ciphers = cipher_suite
def wrap_socket(self, socket, server_hostname=None):
def wrap_socket(self, socket, server_hostname=None, server_side=False):
warnings.warn(
'A true SSLContext object is not available. This prevents '
'urllib3 from configuring SSL appropriately and may cause '
'certain SSL connections to fail. For more information, see '
'certain SSL connections to fail. You can upgrade to a newer '
'version of Python to solve this. For more information, see '
'https://urllib3.readthedocs.org/en/latest/security.html'
'#insecureplatformwarning.',
InsecurePlatformWarning
@ -125,6 +127,7 @@ except ImportError:
'ca_certs': self.ca_certs,
'cert_reqs': self.verify_mode,
'ssl_version': self.protocol,
'server_side': server_side,
}
if self.supports_set_ciphers: # Platform-specific: Python 2.7+
return wrap_socket(socket, ciphers=self.ciphers, **kwargs)
@ -308,8 +311,8 @@ def ssl_wrap_socket(sock, keyfile=None, certfile=None, cert_reqs=None,
'An HTTPS request has been made, but the SNI (Subject Name '
'Indication) extension to TLS is not available on this platform. '
'This may cause the server to present an incorrect TLS '
'certificate, which can cause validation failures. For more '
'information, see '
'certificate, which can cause validation failures. You can upgrade to '
'a newer version of Python to solve this. For more information, see '
'https://urllib3.readthedocs.org/en/latest/security.html'
'#snimissingwarning.',
SNIMissingWarning

View File

@ -116,7 +116,6 @@ class SessionRedirectMixin(object):
resp.close()
url = resp.headers['location']
method = req.method
# Handle redirection without scheme (see: RFC 1808 Section 4)
if url.startswith('//'):
@ -140,22 +139,7 @@ class SessionRedirectMixin(object):
if resp.is_permanent_redirect and req.url != prepared_request.url:
self.redirect_cache[req.url] = prepared_request.url
# http://tools.ietf.org/html/rfc7231#section-6.4.4
if (resp.status_code == codes.see_other and
method != 'HEAD'):
method = 'GET'
# Do what the browsers do, despite standards...
# First, turn 302s into GETs.
if resp.status_code == codes.found and method != 'HEAD':
method = 'GET'
# Second, if a POST is responded to with a 301, turn it into a GET.
# This bizarre behaviour is explained in Issue 1704.
if resp.status_code == codes.moved and method == 'POST':
method = 'GET'
prepared_request.method = method
self.rebuild_method(prepared_request, resp)
# https://github.com/kennethreitz/requests/issues/1084
if resp.status_code not in (codes.temporary_redirect, codes.permanent_redirect):
@ -244,10 +228,10 @@ class SessionRedirectMixin(object):
if self.trust_env and not should_bypass_proxies(url):
environ_proxies = get_environ_proxies(url)
proxy = environ_proxies.get(scheme)
proxy = environ_proxies.get('all', environ_proxies.get(scheme))
if proxy:
new_proxies.setdefault(scheme, environ_proxies[scheme])
new_proxies.setdefault(scheme, proxy)
if 'Proxy-Authorization' in headers:
del headers['Proxy-Authorization']
@ -262,6 +246,28 @@ class SessionRedirectMixin(object):
return new_proxies
def rebuild_method(self, prepared_request, response):
"""When being redirected we may want to change the method of the request
based on certain specs or browser behavior.
"""
method = prepared_request.method
# http://tools.ietf.org/html/rfc7231#section-6.4.4
if response.status_code == codes.see_other and method != 'HEAD':
method = 'GET'
# Do what the browsers do, despite standards...
# First, turn 302s into GETs.
if response.status_code == codes.found and method != 'HEAD':
method = 'GET'
# Second, if a POST is responded to with a 301, turn it into a GET.
# This bizarre behaviour is explained in Issue 1704.
if response.status_code == codes.moved and method == 'POST':
method = 'GET'
prepared_request.method = method
class Session(SessionRedirectMixin):
"""A Requests session.
@ -437,6 +443,7 @@ class Session(SessionRedirectMixin):
A CA_BUNDLE path can also be provided. Defaults to ``True``.
:param cert: (optional) if String, path to ssl client cert file (.pem).
If Tuple, ('cert', 'key') pair.
:rtype: requests.Response
"""
# Create the Request.
req = Request(
@ -550,7 +557,7 @@ class Session(SessionRedirectMixin):
# It's possible that users might accidentally send a Request object.
# Guard against that specific failure case.
if not isinstance(request, PreparedRequest):
if isinstance(request, Request):
raise ValueError('You can only send PreparedRequests.')
# Set up variables needed for resolve_redirects and dispatching of hooks

View File

@ -53,6 +53,7 @@ _codes = {
416: ('requested_range_not_satisfiable', 'requested_range', 'range_not_satisfiable'),
417: ('expectation_failed',),
418: ('im_a_teapot', 'teapot', 'i_am_a_teapot'),
421: ('misdirected_request',),
422: ('unprocessable_entity', 'unprocessable'),
423: ('locked',),
424: ('failed_dependency', 'dependency'),

View File

@ -10,6 +10,8 @@ Data structures that power Requests.
import collections
from .compat import OrderedDict
class CaseInsensitiveDict(collections.MutableMapping):
"""
@ -40,7 +42,7 @@ class CaseInsensitiveDict(collections.MutableMapping):
"""
def __init__(self, data=None, **kwargs):
self._store = dict()
self._store = OrderedDict()
if data is None:
data = {}
self.update(data, **kwargs)

View File

@ -14,9 +14,7 @@ import codecs
import collections
import io
import os
import platform
import re
import sys
import socket
import struct
import warnings
@ -83,7 +81,14 @@ def super_len(o):
)
if hasattr(o, 'tell'):
current_position = o.tell()
try:
current_position = o.tell()
except (OSError, IOError):
# This can happen in some weird situations, such as when the file
# is actually a special file descriptor like stdin. In this
# instance, we don't know what the length is, so set it to zero and
# let requests chunk it instead.
current_position = total_length
return max(0, total_length - current_position)
@ -534,6 +539,10 @@ def should_bypass_proxies(url):
if is_valid_cidr(proxy_ip):
if address_in_network(ip, proxy_ip):
return True
elif ip == proxy_ip:
# If no_proxy ip was defined in plain IP notation instead of cidr notation &
# matches the IP of the index
return True
else:
for host in no_proxy:
if netloc.endswith(host) or netloc.split(':')[0].endswith(host):
@ -557,6 +566,7 @@ def should_bypass_proxies(url):
return False
def get_environ_proxies(url):
"""Return a dict of environment proxies."""
if should_bypass_proxies(url):
@ -564,6 +574,7 @@ def get_environ_proxies(url):
else:
return getproxies()
def select_proxy(url, proxies):
"""Select a proxy for the url, if applicable.
@ -572,11 +583,24 @@ def select_proxy(url, proxies):
"""
proxies = proxies or {}
urlparts = urlparse(url)
proxy = proxies.get(urlparts.scheme+'://'+urlparts.hostname)
if proxy is None:
proxy = proxies.get(urlparts.scheme)
if urlparts.hostname is None:
return proxies.get('all', proxies.get(urlparts.scheme))
proxy_keys = [
'all://' + urlparts.hostname,
'all',
urlparts.scheme + '://' + urlparts.hostname,
urlparts.scheme,
]
proxy = None
for proxy_key in proxy_keys:
if proxy_key in proxies:
proxy = proxies[proxy_key]
break
return proxy
def default_user_agent(name="python-requests"):
"""Return a string representing the default user agent."""
return '%s/%s' % (name, __version__)
@ -600,21 +624,19 @@ def parse_header_links(value):
links = []
replace_chars = " '\""
replace_chars = ' \'"'
for val in re.split(", *<", value):
for val in re.split(', *<', value):
try:
url, params = val.split(";", 1)
url, params = val.split(';', 1)
except ValueError:
url, params = val, ''
link = {}
link = {'url': url.strip('<> \'"')}
link["url"] = url.strip("<> '\"")
for param in params.split(";"):
for param in params.split(';'):
try:
key, value = param.split("=")
key, value = param.split('=')
except ValueError:
break
@ -661,8 +683,8 @@ def guess_json_utf(data):
def prepend_scheme_if_needed(url, new_scheme):
'''Given a URL that may or may not have a scheme, prepend the given scheme.
Does not replace a present scheme with the one provided as an argument.'''
"""Given a URL that may or may not have a scheme, prepend the given scheme.
Does not replace a present scheme with the one provided as an argument."""
scheme, netloc, path, params, query, fragment = urlparse(url, new_scheme)
# urlparse is a finicky beast, and sometimes decides that there isn't a
@ -693,8 +715,6 @@ def to_native_string(string, encoding='ascii'):
string in the native string type, encoding and decoding where necessary.
This assumes ASCII unless told otherwise.
"""
out = None
if isinstance(string, builtin_str):
out = string
else: