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130 lines
4.4 KiB
Python
130 lines
4.4 KiB
Python
"""
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NTLM authenticating pool, contributed by erikcederstran
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Issue #10, see: http://code.google.com/p/urllib3/issues/detail?id=10
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"""
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from __future__ import absolute_import
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import warnings
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from logging import getLogger
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from ntlm import ntlm
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from .. import HTTPSConnectionPool
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from ..packages.six.moves.http_client import HTTPSConnection
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warnings.warn(
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"The 'urllib3.contrib.ntlmpool' module is deprecated and will be removed "
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"in urllib3 v2.0 release, urllib3 is not able to support it properly due "
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"to reasons listed in issue: https://github.com/urllib3/urllib3/issues/2282. "
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"If you are a user of this module please comment in the mentioned issue.",
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DeprecationWarning,
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)
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log = getLogger(__name__)
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class NTLMConnectionPool(HTTPSConnectionPool):
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"""
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Implements an NTLM authentication version of an urllib3 connection pool
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"""
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scheme = "https"
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def __init__(self, user, pw, authurl, *args, **kwargs):
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"""
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authurl is a random URL on the server that is protected by NTLM.
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user is the Windows user, probably in the DOMAIN\\username format.
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pw is the password for the user.
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"""
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super(NTLMConnectionPool, self).__init__(*args, **kwargs)
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self.authurl = authurl
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self.rawuser = user
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user_parts = user.split("\\", 1)
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self.domain = user_parts[0].upper()
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self.user = user_parts[1]
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self.pw = pw
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def _new_conn(self):
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# Performs the NTLM handshake that secures the connection. The socket
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# must be kept open while requests are performed.
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self.num_connections += 1
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log.debug(
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"Starting NTLM HTTPS connection no. %d: https://%s%s",
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self.num_connections,
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self.host,
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self.authurl,
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)
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headers = {"Connection": "Keep-Alive"}
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req_header = "Authorization"
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resp_header = "www-authenticate"
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conn = HTTPSConnection(host=self.host, port=self.port)
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# Send negotiation message
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headers[req_header] = "NTLM %s" % ntlm.create_NTLM_NEGOTIATE_MESSAGE(
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self.rawuser
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)
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log.debug("Request headers: %s", headers)
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conn.request("GET", self.authurl, None, headers)
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res = conn.getresponse()
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reshdr = dict(res.headers)
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log.debug("Response status: %s %s", res.status, res.reason)
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log.debug("Response headers: %s", reshdr)
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log.debug("Response data: %s [...]", res.read(100))
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# Remove the reference to the socket, so that it can not be closed by
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# the response object (we want to keep the socket open)
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res.fp = None
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# Server should respond with a challenge message
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auth_header_values = reshdr[resp_header].split(", ")
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auth_header_value = None
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for s in auth_header_values:
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if s[:5] == "NTLM ":
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auth_header_value = s[5:]
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if auth_header_value is None:
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raise Exception(
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"Unexpected %s response header: %s" % (resp_header, reshdr[resp_header])
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)
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# Send authentication message
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ServerChallenge, NegotiateFlags = ntlm.parse_NTLM_CHALLENGE_MESSAGE(
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auth_header_value
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)
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auth_msg = ntlm.create_NTLM_AUTHENTICATE_MESSAGE(
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ServerChallenge, self.user, self.domain, self.pw, NegotiateFlags
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)
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headers[req_header] = "NTLM %s" % auth_msg
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log.debug("Request headers: %s", headers)
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conn.request("GET", self.authurl, None, headers)
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res = conn.getresponse()
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log.debug("Response status: %s %s", res.status, res.reason)
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log.debug("Response headers: %s", dict(res.headers))
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log.debug("Response data: %s [...]", res.read()[:100])
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if res.status != 200:
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if res.status == 401:
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raise Exception("Server rejected request: wrong username or password")
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raise Exception("Wrong server response: %s %s" % (res.status, res.reason))
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res.fp = None
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log.debug("Connection established")
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return conn
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def urlopen(
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self,
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method,
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url,
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body=None,
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headers=None,
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retries=3,
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redirect=True,
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assert_same_host=True,
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):
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if headers is None:
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headers = {}
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headers["Connection"] = "Keep-Alive"
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return super(NTLMConnectionPool, self).urlopen(
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method, url, body, headers, retries, redirect, assert_same_host
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)
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