3
Re@ @ s\ d Z ddlmZ ddlZddlmZ ddlmZ ddl
m Z yddl m
Z
W n$ ek
rp G dd d eZ
Y nX dd
lmZmZ dd lmZ ydd lmZ W n$ ek
r dZd
dlmZ Y nX ddlZddlZd
dlm Z ddl Z d
dl m Z ddgZ dZ!e j"ej#j$ej%ej#j&iZ'e(edr@e(ej#dr@ej#j)e'ej*< e(edrhe(ej#drhej#j+e'ej,< e(edre(ej#drej#j-e'ej.< ej/ej#j0ej1ej#j2ej3ej#j2ej#j4 iZ5e6dd e5j7 D Z8d Z9e j!Z:e j;je?Z@d d ZAd d ZBd d ZCd!d" ZDd#d$ ZEG d%d& d&eFZGer6d/d(d)ZHneZHeHeG_HG d*d+ d+eFZId,d- ZJdS )0ab
SSL with SNI_-support for Python 2. Follow these instructions if you would
like to verify SSL certificates in Python 2. Note, the default libraries do
*not* do certificate checking; you need to do additional work to validate
certificates yourself.
This needs the following packages installed:
* pyOpenSSL (tested with 16.0.0)
* cryptography (minimum 1.3.4, from pyopenssl)
* idna (minimum 2.0, from cryptography)
However, pyopenssl depends on cryptography, which depends on idna, so while we
use all three directly here we end up having relatively few packages required.
You can install them with the following command:
pip install pyopenssl cryptography idna
To activate certificate checking, call
:func:`~urllib3.contrib.pyopenssl.inject_into_urllib3` from your Python code
before you begin making HTTP requests. This can be done in a ``sitecustomize``
module, or at any other time before your application begins using ``urllib3``,
like this::
try:
import urllib3.contrib.pyopenssl
urllib3.contrib.pyopenssl.inject_into_urllib3()
except ImportError:
pass
Now you can use :mod:`urllib3` as you normally would, and it will support SNI
when the required modules are installed.
Activating this module also has the positive side effect of disabling SSL/TLS
compression in Python 2 (see `CRIME attack`_).
If you want to configure the default list of supported cipher suites, you can
set the ``urllib3.contrib.pyopenssl.DEFAULT_SSL_CIPHER_LIST`` variable.
.. _sni: https://en.wikipedia.org/wiki/Server_Name_Indication
.. _crime attack: https://en.wikipedia.org/wiki/CRIME_(security_exploit)
)absolute_importN)x509)backend) _Certificate)UnsupportedExtensionc @ s e Zd ZdS )r N)__name__
__module__ __qualname__ r
r
/builddir/build/BUILDROOT/alt-python36-pip-20.2.4-5.el8.x86_64/opt/alt/python36/lib/python3.6/site-packages/pip/_vendor/urllib3/contrib/pyopenssl.pyr 7 s r )timeouterror)BytesIO) _fileobject )backport_makefile)six)utilinject_into_urllib3extract_from_urllib3TPROTOCOL_SSLv3 SSLv3_METHODPROTOCOL_TLSv1_1TLSv1_1_METHODPROTOCOL_TLSv1_2TLSv1_2_METHODc c s | ]\}}||fV qd S )Nr
).0kvr
r
r g s r i @ c C s4 t tt_ttj_tt_ttj_dt_dtj_dS )z7Monkey-patch urllib3 with PyOpenSSL-backed SSL-support.TN)_validate_dependencies_metPyOpenSSLContextr
SSLContextssl_HAS_SNI IS_PYOPENSSLr
r
r
r r s s c C s. t t_t tj_tt_ttj_dt_dtj_dS )z4Undo monkey-patching by :func:`inject_into_urllib3`.FN)orig_util_SSLContextr r" r# orig_util_HAS_SNIr$ r% r
r
r
r r s c C sR ddl m} t| dddkr$tdddlm} | }t|dddkrNtddS ) z{
Verifies that PyOpenSSL's package-level dependencies have been met.
Throws `ImportError` if they are not met.
r )
Extensionsget_extension_for_classNzX'cryptography' module missing required functionality. Try upgrading to v1.3.4 or newer.)X509_x509zS'pyOpenSSL' module missing required functionality. Try upgrading to v0.14 or newer.)Z cryptography.x509.extensionsr( getattr ImportErrorZOpenSSL.cryptor* )r( r* r r
r
r r s r c C s@ dd }d| kr| S || } | dkr(dS t jdkr<| jd} | S ) a%
Converts a dNSName SubjectAlternativeName field to the form used by the
standard library on the given Python version.
Cryptography produces a dNSName as a unicode string that was idna-decoded
from ASCII bytes. We need to idna-encode that string to get it back, and
then on Python 3 we also need to convert to unicode via UTF-8 (the stdlib
uses PyUnicode_FromStringAndSize on it, which decodes via UTF-8).
If the name cannot be idna-encoded then we return None signalling that
the name given should be skipped.
c S sp ddl m} yFx:dD ]2}| j|r| t|d } |jd|j| S qW |j| S |jjk
rj dS X dS )z
Borrowed wholesale from the Python Cryptography Project. It turns out
that we can't just safely call `idna.encode`: it can explode for
wildcard names. This avoids that problem.
r )idna*..Nascii)r/ r0 ) pip._vendorr.
startswithlenencodecore IDNAError)namer. prefixr
r
r idna_encode s
z'_dnsname_to_stdlib..idna_encode:N r zutf-8)r< r )sys version_infodecode)r8 r: r
r
r _dnsname_to_stdlib s
r@ c C s t | dr| j }n tt| j}y|jjtjj }W nL tj
k
rJ g S tj t tj
tfk
r } ztjd| g S d}~X nX dd tt|jtjD }|jdd |jtjD |S )zU
Given an PyOpenSSL certificate, provides all the subject alternative names.
to_cryptographyzA problem was encountered with the certificate that prevented urllib3 from finding the SubjectAlternativeName field. This can affect certificate validation. The error was %sNc S s g | ]}|d k rd|fqS )NDNSr
)r r8 r
r
r
s z%get_subj_alt_name..c s s | ]}d t |fV qdS )z
IP AddressN)str)r r8 r
r
r r s z$get_subj_alt_name..)hasattrrA r openssl_backendr+
extensionsr) r ZSubjectAlternativeNamevalueZExtensionNotFoundZDuplicateExtensionr ZUnsupportedGeneralNameType UnicodeErrorlogwarningmapr@ Zget_values_for_typeZDNSNameextendZ IPAddress)Z peer_certcertextenamesr
r
r get_subj_alt_name s*
rR c @ s e Zd ZdZd!ddZdd Zdd Zd d
Zd d Zd
d Z dd Z
dd Z dd Z dd Z
d"ddZdd Zd d Zd d Zd S )#
WrappedSocketzAPI-compatibility wrapper for Python OpenSSL's Connection-class.
Note: _makefile_refs, _drop() and _reuse() are needed for the garbage
collector of pypy.
Tc C s" || _ || _|| _d| _d| _d S )Nr F)
connectionsocketsuppress_ragged_eofs_makefile_refs_closed)selfrT rU rV r
r
r __init__
s
zWrappedSocket.__init__c C s
| j j S )N)rU fileno)rY r
r
r r[ s zWrappedSocket.filenoc C s* | j dkr| j d8 _ | jr&| j d S )Nr )rW rX close)rY r
r
r _decref_socketios s
z WrappedSocket._decref_socketiosc O s y| j j||}W n tjjk
rX } z&| jr<|jdkrt tjs* jd | j j fdd | j j|pJ| d S )Nzutf-8c s S )Nr
)_)passwordr
r s z2PyOpenSSLContext.load_cert_chain..)r Zuse_certificate_chain_filer r binary_typer5 Z
set_passwd_cbZuse_privatekey_file)rY certfilekeyfiler r
)r r load_cert_chain s
z PyOpenSSLContext.load_cert_chainFTc C s t jj| j|}t|tjr&|jd}|d k r8|j| |j xxy |j
W nd t jj k
r t j
||j sztdwBY n4 t jjk
r } ztjd| W Y d d }~X nX P qBW t||S )Nzutf-8zselect timed outzbad handshake: %r)rc rd
Connectionr r r r r5 Zset_tlsext_host_nameZset_connect_state do_handshakerk r rl rm r rn ro rp rS )rY sock server_sidedo_handshake_on_connectrV server_hostnamecnxrP r
r
r wrap_socket s"
z PyOpenSSLContext.wrap_socket)NNN)NN)FTTN)r r r r rZ propertyr setterr r r r r r r
r
r
r r! s
r! c C s |dkS )Nr r
)r r Zerr_noZ err_depthZ return_coder
r
r r s r ra )ra )Kr
__future__r Z OpenSSL.SSLrc Z cryptographyr Z$cryptography.hazmat.backends.opensslr rF Z)cryptography.hazmat.backends.openssl.x509r Zcryptography.x509r r- ExceptionrU r r
rg ior r Zpackages.backports.makefiler loggingro packagesr r= r __all__r$ PROTOCOL_TLSrd Z
SSLv23_METHODPROTOCOL_TLSv1Z TLSv1_METHODr rE r r r r r r CERT_NONEZ VERIFY_NONE
CERT_OPTIONALZ VERIFY_PEER
CERT_REQUIREDZVERIFY_FAIL_IF_NO_PEER_CERTr dictitemsr ry r' r# r" r& getLoggerr rJ r r r r@ rR objectrS r r! r r
r
r
r + sj
+6 Z