123 lines
4.1 KiB
Python
123 lines
4.1 KiB
Python
"""
|
|
NTLM authenticating pool, contributed by erikcederstran
|
|
|
|
Issue #10, see: http://code.google.com/p/urllib3/issues/detail?id=10
|
|
"""
|
|
from __future__ import absolute_import
|
|
|
|
from logging import getLogger
|
|
from ntlm import ntlm
|
|
|
|
from .. import HTTPSConnectionPool
|
|
from ..packages.six.moves.http_client import HTTPSConnection
|
|
|
|
|
|
log = getLogger(__name__)
|
|
|
|
|
|
class NTLMConnectionPool(HTTPSConnectionPool):
|
|
"""
|
|
Implements an NTLM authentication version of an urllib3 connection pool
|
|
"""
|
|
|
|
scheme = "https"
|
|
|
|
def __init__(self, user, pw, authurl, *args, **kwargs):
|
|
"""
|
|
authurl is a random URL on the server that is protected by NTLM.
|
|
user is the Windows user, probably in the DOMAIN\\username format.
|
|
pw is the password for the user.
|
|
"""
|
|
super(NTLMConnectionPool, self).__init__(*args, **kwargs)
|
|
self.authurl = authurl
|
|
self.rawuser = user
|
|
user_parts = user.split("\\", 1)
|
|
self.domain = user_parts[0].upper()
|
|
self.user = user_parts[1]
|
|
self.pw = pw
|
|
|
|
def _new_conn(self):
|
|
# 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,
|
|
)
|
|
|
|
headers = {"Connection": "Keep-Alive"}
|
|
req_header = "Authorization"
|
|
resp_header = "www-authenticate"
|
|
|
|
conn = HTTPSConnection(host=self.host, port=self.port)
|
|
|
|
# Send negotiation message
|
|
headers[req_header] = "NTLM %s" % ntlm.create_NTLM_NEGOTIATE_MESSAGE(
|
|
self.rawuser
|
|
)
|
|
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))
|
|
|
|
# Remove the reference to the socket, so that it can not be closed by
|
|
# the response object (we want to keep the socket open)
|
|
res.fp = None
|
|
|
|
# Server should respond with a challenge message
|
|
auth_header_values = reshdr[resp_header].split(", ")
|
|
auth_header_value = None
|
|
for s in auth_header_values:
|
|
if s[:5] == "NTLM ":
|
|
auth_header_value = s[5:]
|
|
if auth_header_value is None:
|
|
raise Exception(
|
|
"Unexpected %s response header: %s" % (resp_header, reshdr[resp_header])
|
|
)
|
|
|
|
# Send authentication message
|
|
ServerChallenge, NegotiateFlags = ntlm.parse_NTLM_CHALLENGE_MESSAGE(
|
|
auth_header_value
|
|
)
|
|
auth_msg = ntlm.create_NTLM_AUTHENTICATE_MESSAGE(
|
|
ServerChallenge, self.user, self.domain, self.pw, NegotiateFlags
|
|
)
|
|
headers[req_header] = "NTLM %s" % auth_msg
|
|
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])
|
|
if res.status != 200:
|
|
if res.status == 401:
|
|
raise Exception(
|
|
"Server rejected request: wrong " "username or password"
|
|
)
|
|
raise Exception("Wrong server response: %s %s" % (res.status, res.reason))
|
|
|
|
res.fp = None
|
|
log.debug("Connection established")
|
|
return conn
|
|
|
|
def urlopen(
|
|
self,
|
|
method,
|
|
url,
|
|
body=None,
|
|
headers=None,
|
|
retries=3,
|
|
redirect=True,
|
|
assert_same_host=True,
|
|
):
|
|
if headers is None:
|
|
headers = {}
|
|
headers["Connection"] = "Keep-Alive"
|
|
return super(NTLMConnectionPool, self).urlopen(
|
|
method, url, body, headers, retries, redirect, assert_same_host
|
|
)
|