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annotate planemo/lib/python3.7/site-packages/urllib3/contrib/ntlmpool.py @ 1:56ad4e20f292 draft

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"planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
author guerler
date Fri, 31 Jul 2020 00:32:28 -0400
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1 """
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2 NTLM authenticating pool, contributed by erikcederstran
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3
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4 Issue #10, see: http://code.google.com/p/urllib3/issues/detail?id=10
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5 """
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6 from __future__ import absolute_import
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7
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8 from logging import getLogger
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9 from ntlm import ntlm
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10
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11 from .. import HTTPSConnectionPool
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12 from ..packages.six.moves.http_client import HTTPSConnection
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13
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14
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15 log = getLogger(__name__)
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16
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17
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18 class NTLMConnectionPool(HTTPSConnectionPool):
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19 """
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20 Implements an NTLM authentication version of an urllib3 connection pool
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21 """
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22
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23 scheme = "https"
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24
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25 def __init__(self, user, pw, authurl, *args, **kwargs):
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26 """
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27 authurl is a random URL on the server that is protected by NTLM.
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28 user is the Windows user, probably in the DOMAIN\\username format.
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29 pw is the password for the user.
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30 """
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31 super(NTLMConnectionPool, self).__init__(*args, **kwargs)
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32 self.authurl = authurl
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33 self.rawuser = user
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34 user_parts = user.split("\\", 1)
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35 self.domain = user_parts[0].upper()
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36 self.user = user_parts[1]
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37 self.pw = pw
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38
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39 def _new_conn(self):
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40 # Performs the NTLM handshake that secures the connection. The socket
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41 # must be kept open while requests are performed.
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42 self.num_connections += 1
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43 log.debug(
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44 "Starting NTLM HTTPS connection no. %d: https://%s%s",
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45 self.num_connections,
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46 self.host,
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47 self.authurl,
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48 )
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49
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50 headers = {"Connection": "Keep-Alive"}
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51 req_header = "Authorization"
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52 resp_header = "www-authenticate"
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53
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54 conn = HTTPSConnection(host=self.host, port=self.port)
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55
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56 # Send negotiation message
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57 headers[req_header] = "NTLM %s" % ntlm.create_NTLM_NEGOTIATE_MESSAGE(
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58 self.rawuser
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59 )
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60 log.debug("Request headers: %s", headers)
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61 conn.request("GET", self.authurl, None, headers)
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62 res = conn.getresponse()
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63 reshdr = dict(res.getheaders())
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64 log.debug("Response status: %s %s", res.status, res.reason)
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65 log.debug("Response headers: %s", reshdr)
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66 log.debug("Response data: %s [...]", res.read(100))
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67
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68 # Remove the reference to the socket, so that it can not be closed by
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69 # the response object (we want to keep the socket open)
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70 res.fp = None
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71
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72 # Server should respond with a challenge message
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73 auth_header_values = reshdr[resp_header].split(", ")
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74 auth_header_value = None
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75 for s in auth_header_values:
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76 if s[:5] == "NTLM ":
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77 auth_header_value = s[5:]
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78 if auth_header_value is None:
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79 raise Exception(
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80 "Unexpected %s response header: %s" % (resp_header, reshdr[resp_header])
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81 )
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82
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83 # Send authentication message
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84 ServerChallenge, NegotiateFlags = ntlm.parse_NTLM_CHALLENGE_MESSAGE(
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85 auth_header_value
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86 )
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87 auth_msg = ntlm.create_NTLM_AUTHENTICATE_MESSAGE(
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88 ServerChallenge, self.user, self.domain, self.pw, NegotiateFlags
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89 )
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90 headers[req_header] = "NTLM %s" % auth_msg
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91 log.debug("Request headers: %s", headers)
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92 conn.request("GET", self.authurl, None, headers)
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93 res = conn.getresponse()
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94 log.debug("Response status: %s %s", res.status, res.reason)
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95 log.debug("Response headers: %s", dict(res.getheaders()))
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96 log.debug("Response data: %s [...]", res.read()[:100])
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97 if res.status != 200:
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98 if res.status == 401:
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99 raise Exception("Server rejected request: wrong username or password")
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100 raise Exception("Wrong server response: %s %s" % (res.status, res.reason))
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101
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102 res.fp = None
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103 log.debug("Connection established")
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104 return conn
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105
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106 def urlopen(
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107 self,
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108 method,
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109 url,
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110 body=None,
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111 headers=None,
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112 retries=3,
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113 redirect=True,
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114 assert_same_host=True,
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115 ):
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116 if headers is None:
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117 headers = {}
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118 headers["Connection"] = "Keep-Alive"
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119 return super(NTLMConnectionPool, self).urlopen(
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120 method, url, body, headers, retries, redirect, assert_same_host
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121 )