/usr/share/ntlmaps/lib/proxy_client.py is in ntlmaps 0.9.9.0.1-11.2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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# Copyright 2001 Dmitry A. Rozmanov <dima@xenon.spb.ru>
#
# NTLM APS is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# NTLM APS is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with the sofware; see the file COPYING. If not, write to the
# Free Software Foundation, Inc.,
# 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
#
import string, socket, thread, select, time
import logger, http_header, utils, ntlm_auth, basic_auth
class proxy_HTTP_Client:
#-----------------------------------------------------------------------
def __init__(self, client_socket, address, config):
""
self.config = config
self.ntlm_auther = ntlm_auth.ntlm_auther()
# experimental code
self.basic_auther = basic_auth.basic_auther()
# experimental code end
self.proxy_authorization_tried = 0
self.www_authorization_tried = 0
self.tunnel_mode = 0
# define log files
self.logger_bin_client = logger.Logger('%s-%d.bin.client' % address, self.config['DEBUG']['BIN_DEBUG'])
self.logger_bin_rserver = logger.Logger('%s-%d.bin.rserver' % address, self.config['DEBUG']['BIN_DEBUG'])
self.logger_auth = logger.Logger('%s-%d.auth' % address, self.config['DEBUG']['AUTH_DEBUG'])
self.logger = logger.Logger('%s-%d' % address, self.config['DEBUG']['DEBUG'])
# set it to 1 till we will connect actually???
# No!!! In that case we have unexpected exit if the client sends its header slow.
self.rserver_socket_closed = 1 # Yes !
# This is a flag that means that we have not tried connecting to
# the remote host. And self.rserver_socket_closed = 1 is not requiring
# to finish thread.
# Do not like this solution.
self.first_run = 1
self.client_socket_closed = 0
self.stop_request = 0 # must finish thread
self.current_rserver_net_location = ''
self.rserver_socket = None
self.client_socket = client_socket
self.client_address = address
self.rserver_head_obj = None
self.rserver_current_data_pos =0
self.rserver_all_got = 0
self.rserver_data_length = 0
self.rserver_header_sent = 0
self.rserver_data_sent = 0
self.rserver_buffer = ''
self.client_head_obj = None
self.client_current_data_pos =0
self.client_all_got = 0
self.client_data_length = 0
self.client_header_sent = 0
self.client_data_sent = 0
self.client_buffer = ''
self.client_sent_data = ''
# init record to debug_log
self.logger.log('%s Version %s\n' % (time.strftime('%d.%m.%Y %H:%M:%S', time.localtime(time.time())), self.config['GENERAL']['VERSION']))
#-----------------------------------------------------------------------
def run(self):
""
if self.config['DEBUG']['SCR_DEBUG']: print 'Connected from %s:%d' % self.client_address
while(not self.stop_request):
# wait for data
if not (self.rserver_buffer or self.client_buffer):
# if buffers are empty
"""
if not self.rserver_socket_closed:
select.select([self.rserver_socket.fileno(), self.client_socket.fileno()], [], [], 5.0)
else:
# if there is no connection to remote server
select.select([self.client_socket.fileno()], [], [], 5.0)
"""
# Experimental code. We fight bug when we do not get all the header in the
# first try and have stop request because rserver_socket_closed==1
# So let's try change socket_closed to socket. which is None if there is no
# connection
if not self.rserver_socket_closed:
try:
select.select([self.rserver_socket.fileno(), self.client_socket.fileno()], [], [], 5.0)
except (socket.error, select.error, ValueError):
thread.exit()
else:
# if there is no connection to remote server
try:
select.select([self.client_socket.fileno()], [], [], 5.0)
except socket.error:
thread.exit()
# client part
self.run_client_loop()
if self.tunnel_mode: self.tunnel_client_data()
if not self.client_header_sent and self.client_head_obj:
if not self.rserver_socket_closed:
# if connected we have to check whether we are connected to the right host.
# if not then close connection
self.check_connected_remote_server()
#if self.rserver_socket_closed:
if self.rserver_socket_closed:
# connect remote server if we have not yet
self.connect_rserver()
self.log_url()
self.send_client_header()
if self.client_header_sent and (not self.client_data_sent):
self.send_client_data()
if self.client_data_sent and self.rserver_data_sent:
# NOTE: we need to know if the request method is HEAD or CONNECT, so we cannot
# proceed to the next request header until response is not worked out
self.check_tunnel_mode()
self.reset_client()
if self.config['DEBUG']['SCR_DEBUG']: print '\b.',
# Remote server part
if not self.rserver_socket_closed:
# if there is a connection to remote server
self.run_rserver_loop()
if self.tunnel_mode: self.tunnel_rserver_data()
if (not self.rserver_header_sent) and self.rserver_head_obj:
self.auth_routine() # NTLM authorization
if (not self.rserver_header_sent) and self.rserver_head_obj:
self.send_rserver_header()
self.check_rserver_response()
if self.rserver_header_sent and (not self.rserver_data_sent):
self.send_rserver_data()
if self.client_head_obj == None and self.rserver_data_sent:
self.reset_rserver()
self.logger.log('*** Request completed.\n')
self.check_stop_request()
self.exit()
if self.config['DEBUG']['SCR_DEBUG']: print 'Finished %s:%d' % self.client_address
#-----------------------------------------------------------------------
def fix_client_header(self):
""
self.logger.log('*** Replacing values in client header...')
if self.config.has_key('CLIENT_HEADER'):
for i in self.config['CLIENT_HEADER'].keys():
self.client_head_obj.del_param(i)
self.client_head_obj.add_param_value(i, self.config['CLIENT_HEADER'][i])
self.logger.log('Done.\n')
self.logger.log('*** New client header:\n=====\n' + self.client_head_obj.__repr__())
else:
self.logger.log('No need.\n*** There is no "CLIENT_HEADER" section in server.cfg.\n')
#-----------------------------------------------------------------------
def run_rserver_loop(self):
""
try:
res = select.select([self.rserver_socket.fileno()], [], [], 0.0)
except (socket.error, ValueError):
self.logger.log('*** Exception in select() on server socket.\n')
thread.exit()
if res[0]:
try:
socket_data = self.rserver_socket.recv(4096)
except:
socket_data = ''
self.logger.log('*** Exception in remote server recv() happend.\n')
if not socket_data:
self.rserver_socket_closed = 1
self.logger.log('*** Remote server closed connection. (Server buffer - %d bytes)\n' % len(self.rserver_buffer))
else:
socket_data = ''
if socket_data:
self.logger_bin_rserver.log(socket_data)
self.rserver_buffer = self.rserver_buffer + socket_data
if not self.rserver_head_obj and not self.tunnel_mode:
self.rserver_head_obj, rest = http_header.extract_server_header(self.rserver_buffer)
# Code for ugly MS response without right delimiter.
# Just '\015\012' at the end. Then it closes connection.
if self.rserver_socket_closed and self.rserver_buffer and (not self.rserver_head_obj):
self.rserver_head_obj, rest = http_header.extract_server_header(self.rserver_buffer + '\015\012')
if self.rserver_head_obj:
self.logger.log("*** There is an bad MS Proxy response header with only one new line at the end in the buffer.\n")
# End of code.
if self.rserver_head_obj:
self.logger.log("*** Got remote server response header.\n")
self.rserver_buffer = rest
self.logger.log('*** Remote server header:\n=====\n' + self.rserver_head_obj.__repr__())
self.guess_rserver_data_length()
self.check_rserver_data_length()
#-----------------------------------------------------------------------
def run_client_loop(self):
""
try:
res = select.select([self.client_socket.fileno()], [], [], 0.0)
except (socket.error, select.error, ValueError):
thread.exit()
if res[0]:
try:
socket_data = self.client_socket.recv(4096)
except:
socket_data = ''
self.logger.log('*** Exception in client recv() happend.\n')
if not socket_data:
self.client_socket_closed = 1
self.logger.log('*** Client closed connection.\n')
else: socket_data = ''
if socket_data:
self.logger_bin_client.log(socket_data)
self.client_buffer = self.client_buffer + socket_data
if not self.client_head_obj and not self.tunnel_mode:
self.client_head_obj, rest = http_header.extract_client_header(self.client_buffer)
if self.client_head_obj:
self.logger.log("*** Got client request header.\n")
self.client_buffer = rest
self.logger.log('*** Client header:\n=====\n' + self.client_head_obj.__repr__())
self.guess_client_data_length()
# mask real values and do transforms
self.fix_client_header()
self.check_client_data_length()
#-----------------------------------------------------------------------
def send_rserver_header(self):
""
self.logger.log('*** Sending remote server response header to client...')
ok = self.rserver_head_obj.send(self.client_socket)
if ok:
self.rserver_header_sent = 1
self.logger.log('Done.\n')
else:
self.client_socket_closed = 1
self.logger.log('Failed.\n')
#-----------------------------------------------------------------------
def send_rserver_data(self):
""
if self.rserver_buffer and (not self.rserver_data_sent):
if self.rserver_data_length:
if self.rserver_all_got:
data = self.rserver_buffer[:self.rserver_data_length - self.rserver_current_data_pos]
self.rserver_buffer = self.rserver_buffer[self.rserver_data_length - self.rserver_current_data_pos:]
else:
data = self.rserver_buffer
self.rserver_buffer = ''
self.rserver_current_data_pos = self.rserver_current_data_pos + len(data)
else:
data = self.rserver_buffer
self.rserver_buffer = ''
try:
self.client_socket.send(data)
self.logger.log('*** Sent %d bytes to client. (all - %d, len - %d)\n' % (len(data), self.rserver_all_got, self.rserver_data_length))
if self.rserver_all_got:
self.rserver_data_sent = 1
self.logger.log('*** Sent ALL the data from remote server to client. (Server buffer - %d bytes)\n' % len(self.rserver_buffer))
except:
self.logger.log('*** Exception by sending data to client. Client closed connection.\n')
self.client_socket_closed = 1
else:
self.logger.log("*** No server's data to send to the client. (server's buffer - %d bytes)\n" % len(self.rserver_buffer))
#-----------------------------------------------------------------------
def send_client_header(self):
""
ok = 0
if self.config['NTLM_AUTH']['NTLM_TO_BASIC'] and self.client_head_obj.has_param('Proxy-Authorization'):
# Assuming Proxy-Authorization parameter contains Basic credentials.
# Masking it out, because of unsafety and unnecessarity.
proxy_authorization_values = self.client_head_obj.get_param_values('Proxy-Authorization')
self.client_head_obj.del_param('Proxy-Authorization')
self.logger.log('*** Sending client request header without Proxy-Authorization parameter to remote server...')
ok = self.client_head_obj.send(self.rserver_socket)
for value in proxy_authorization_values:
self.client_head_obj.add_param_value('Proxy-Authorization', value)
else:
self.logger.log('*** Sending client request header to remote server...')
ok = self.client_head_obj.send(self.rserver_socket)
if ok:
self.client_header_sent = 1
self.logger.log('Done.\n')
else:
self.rserver_socket_closed = 1
self.logger.log('Failed.\n')
#-----------------------------------------------------------------------
def send_client_data(self):
""
if self.client_buffer and (not self.client_data_sent):
if self.client_data_length:
if self.client_all_got:
data = self.client_buffer[:self.client_data_length - self.client_current_data_pos]
self.client_buffer = self.client_buffer[self.client_data_length - self.client_current_data_pos:]
else:
data = self.client_buffer
self.client_buffer = ''
self.client_current_data_pos = self.client_current_data_pos + len(data)
else:
data = self.client_buffer
self.client_buffer = ''
try:
self.rserver_socket.send(data)
self.client_sent_data = self.client_sent_data + data
self.logger.log('*** Sent %d bytes to remote server. (all - %d)\n' % (len(data), self.client_all_got))
if self.client_all_got:
self.client_data_sent = 1
self.logger.log('*** Sent ALL the data from client to remote server. (Client buffer - %d bytes)\n' % len(self.client_buffer))
except:
self.logger.log('*** Exception during sending data to remote server. Remote server closed connection.\n')
self.rserver_socket_closed = 1
#-----------------------------------------------------------------------
def reset_rserver(self):
""
self.logger.log('*** Resetting remote server status...')
self.rserver_head_obj = None
self.rserver_current_data_pos =0
self.rserver_all_got = 0
self.rserver_data_length = 0
self.rserver_header_sent = 0
self.rserver_data_sent = 0
#self.rserver_buffer = ''
self.logger.log('Done. (Server buffer - %d bytes)\n' % len(self.rserver_buffer))
#-----------------------------------------------------------------------
def reset_client(self):
""
self.logger.log('*** Resetting client status...')
self.client_head_obj = None
self.client_current_data_pos =0
self.client_all_got = 0
self.client_data_length = 0
self.client_header_sent = 0
self.client_data_sent = 0
#self.client_buffer = ''
self.client_sent_data = ''
self.logger.log('Done. (Client buffer - %d bytes)\n' % len(self.client_buffer))
#-----------------------------------------------------------------------
def rollback_client_data(self):
""
# some activity for POST and PUT getting to work with authorization
# part of data might be sent before we have got 407 error
# so we have to get those data back
if self.client_sent_data:
self.logger.log("*** Sent %s bytes and have to roll back POST/PUT data transfer. (Client's buffer - %d bytes)\n" % (len(self.client_sent_data), len(self.client_buffer)))
self.client_buffer = self.client_sent_data + self.client_buffer
self.client_current_data_pos =0
self.client_all_got = 0
self.client_data_sent = 0
self.client_sent_data = ''
self.logger.log("Rollback Done. (Client's buffer - %d bytes)\n" % len(self.client_buffer))
#-----------------------------------------------------------------------
def tunnel_rserver_data(self):
""
if self.rserver_buffer:
data = self.rserver_buffer
self.rserver_buffer = ''
try:
self.client_socket.send(data)
self.logger.log('*** Tunnelled %d bytes to client.\n' % len(data))
except:
self.logger.log('*** Exception by tunnelling data to client. Client closed connection.\n')
self.client_socket_closed = 1
#-----------------------------------------------------------------------
def tunnel_client_data(self):
""
if self.client_buffer:
data = self.client_buffer
self.client_buffer = ''
try:
self.rserver_socket.send(data)
self.logger.log('*** Tunnelled %d bytes to remote server.\n' % len(data))
except:
self.logger.log('*** Exception by tunnelling data to remote server. Remote server closed connection.\n')
self.rserver_socket_closed = 1
#-----------------------------------------------------------------------
def guess_rserver_data_length(self):
""
code = self.rserver_head_obj.get_http_code()
try:
c_method = self.client_head_obj.get_http_method()
except AttributeError:
# Problem with remote end of connection
self.logger.log('*** Exception getting http code from client_head_obj -- remote end closed connection??\n')
thread.exit()
if code == '304' or code == '204' or code[0] == '1':
self.rserver_all_got = 1
self.rserver_data_sent = 1
self.rserver_data_length = 0
self.logger.log('*** Remote server response is %s and it must not have any body.\n' % code)
# we had problem here if the responce was some kind of error. Then there may be
# some body.
# This time let's try to check for 4** responses to fix the problem.
if (c_method == 'HEAD' or c_method == 'CONNECT') and (code[0] != '4'):
self.rserver_all_got = 1
self.rserver_data_sent = 1
self.rserver_data_length = 0
self.logger.log("*** Remote server response to the '%s' request. It must not have any body.\n" % c_method)
if not self.rserver_all_got:
try:
self.rserver_data_length = int(self.rserver_head_obj.get_param_values('Content-Length')[0])
self.logger.log("*** Server 'Content-Length' found to be %d.\n" % self.rserver_data_length)
if self.rserver_data_length == 0:
self.rserver_all_got = 1
self.rserver_data_sent = 1
except:
self.rserver_data_length = 0
self.logger.log("*** Could not find server 'Content-Length' parameter.\n")
#-----------------------------------------------------------------------
def guess_client_data_length(self):
""
if not self.client_head_obj.has_param('Content-Length') and not self.client_head_obj.has_param('Transfer-Encode'):
self.client_all_got = 1
self.client_data_sent = 1
self.client_data_length = 0
self.logger.log("*** Client request header does not have 'Content-Length' or 'Transfer-Encoding' parameter and it must not have any body.\n")
if not self.client_all_got:
try:
self.client_data_length = int(self.client_head_obj.get_param_values('Content-Length')[0])
self.logger.log("*** Client 'Content-Length' found to be %s.\n" % self.client_data_length)
if self.client_data_length == 0:
self.client_all_got = 1
self.client_data_sent = 1
except:
self.client_data_length = 0
self.logger.log("*** Could not find client 'Content-Length' parameter.\n")
#-----------------------------------------------------------------------
def check_rserver_data_length(self):
""
if self.rserver_data_length:
if self.rserver_data_length <= (len(self.rserver_buffer) + self.rserver_current_data_pos):
self.rserver_all_got = 1
#-----------------------------------------------------------------------
def check_client_data_length(self):
""
if self.client_data_length:
if self.client_data_length <= (len(self.client_buffer) + self.client_current_data_pos):
self.client_all_got = 1
#-----------------------------------------------------------------------
def check_tunnel_mode(self):
""
p_code = self.rserver_head_obj.get_http_code()
c_request = self.client_head_obj.get_http_method()
if c_request == 'CONNECT' and p_code == '200':
self.logger.log("*** Successful 'CONNECT' request detected. Going to tunnel mode.\n")
self.tunnel_mode = 1
#-----------------------------------------------------------------------
def log_url(self):
""
if self.config['GENERAL']['URL_LOG']:
t = time.strftime('%d.%m.%Y %H:%M:%S', time.localtime(time.time()))
m = self.client_head_obj.get_http_method()
url = self.client_head_obj.get_http_url()
v = self.client_head_obj.get_http_version()
p1 = '%s %s %s %s ' % (t, m, url, v)
p2 = '(from %s:%s)' % self.client_address
self.config['GENERAL']['URL_LOG_LOCK'].acquire()
self.config['GENERAL']['URL_LOGGER'].log(p1 + p2 + '\n')
self.config['GENERAL']['URL_LOG_LOCK'].release()
#-----------------------------------------------------------------------
def check_stop_request(self):
""
reason = ''
if self.rserver_socket_closed and not self.first_run:
self.stop_request = 1
reason = "remote server closed connection"
if self.rserver_head_obj:
# if we POSTing or PUTting some info and Proxy closed connection
# with error 407, we would like to try to authorize ourselves before giving up.
if (not self.proxy_authorization_tried) and self.rserver_head_obj.get_http_code() == '407':
self.stop_request = 0
if (not self.www_authorization_tried) and self.rserver_head_obj.get_http_code() == '401':
self.stop_request = 0
if self.client_socket_closed:
self.stop_request = 1
reason = "client closed connection"
if self.rserver_socket_closed and self.client_socket_closed:
# actually redundant case, but anyway...
self.stop_request = 1
reason = "remote server and client closed connections"
if self.stop_request:
self.logger.log("*** Termination conditions detected (%s). Stop Request issued.\n" % reason)
#-----------------------------------------------------------------------
def exit(self):
""
self.logger.log('*** Finishing procedure started.\n')
if self.rserver_socket_closed and self.rserver_buffer and (not self.client_socket_closed):
self.logger.log('*** There are some data to be sent to client in the remote server buffer.\n')
self.tunnel_rserver_data()
if self.client_socket_closed and self.client_buffer and (not self.rserver_socket_closed):
self.logger.log('*** There are some data to be sent to remote server in the client buffer.\n')
self.tunnel_client_data()
self.logger.log('*** Closing thread...')
if self.client_socket:
self.client_socket.close()
if self.rserver_socket:
self.rserver_socket.close()
self.logger.log('Done.\n')
# thread.exit()
#-------------------------------------------------
def connect_rserver(self):
""
self.logger.log('*** Connecting to remote server...')
self.first_run = 0
rs = self.config['GENERAL']['PARENT_PROXY']
rsp = self.config['GENERAL']['PARENT_PROXY_PORT']
self.logger.log('(%s:%d)...' % (rs, rsp))
try:
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect((rs, rsp))
self.rserver_socket = s
self.rserver_socket_closed = 0
self.current_rserver_net_location = '%s:%d' % (rs, rsp)
self.logger.log('Done.\n')
except:
self.rserver_socket_closed = 1
self.logger.log('Failed.\n')
self.exit()
thread.exit()
#-------------------------------------------------
def close_rserver(self):
""
self.logger.log('*** Closing connection to the remote server...')
self.rserver_socket.close()
self.rserver_socket_closed = 1
self.current_rserver_net_location = ''
self.logger.log('Done.\n')
#-------------------------------------------------
def close_client(self):
""
self.logger.log('*** Closing connection to the client...')
self.client_socket.close()
self.client_socket_closed = 1
self.logger.log('Done.\n')
#-----------------------------------------------------------------------
def auth_407(self):
""
auth = self.rserver_head_obj.get_param_values('Proxy-Authenticate')
upper_auth = []
msg = ''
for i in auth:
msg = msg + ", %s" % i
upper_auth.append(string.upper(i))
self.logger.log('*** Authentication methods allowed: ' + msg[2:] + '\n')
# NOTE that failed auth is detected now just after any failed atempt.
# May it will be of use to keep trying till all the methods will fail.
if self.proxy_authorization_tried:
self.logger.log('*** Looks like our authorization failed.\n*** Passing 407 to client.\n')
else:
self.proxy_authorization_tried = 1
self.rollback_client_data()
# Method selector. Should try the most secure method.
if 'NTLM' in upper_auth:
self.logger.log('*** Using NTLM authentication method.\n')
#self.proxy_ntlm_authorization()
self.ntlm_auther.proxy_ntlm_authentication(self)
elif 'BASIC_' in upper_auth:
self.logger.log('*** Using Basic authentication method.\n')
#self.basic_authorization()
self.basic_auther.proxy_basic_authentication(self)
else:
self.logger.log('*** There are no supported authentication methods in remote server response.\n')
self.logger.log('*** Passing 407 to client.\n')
#-----------------------------------------------------------------------
def auth_401(self):
""
auth = self.rserver_head_obj.get_param_values('Www-Authenticate')
upper_auth = []
msg = ''
for i in auth:
msg = msg + ", %s" % i
upper_auth.append(string.upper(i))
self.logger.log('*** Authentication methods allowed: ' + msg[2:] + '\n')
# NOTE that failed auth is detected now just after any failed atempt.
# May it will be of use to keep trying till all the methods will fail.
if self.www_authorization_tried:
self.logger.log('*** Looks like our authorization failed.\n*** Passing 401 to client.\n')
else:
self.www_authorization_tried = 1
self.rollback_client_data()
# Method selector. Should try the most secure method.
if 'NTLM' in upper_auth:
self.logger.log('*** Using NTLM authentication method.\n')
#self.www_ntlm_authorization()
self.ntlm_auther.www_ntlm_authentication(self)
elif 'BASIC_' in upper_auth:
self.logger.log('*** Using Basic authentication method.\n')
#self.basic_authorization()
self.basic_auther.www_basic_authentication(self)
else:
self.logger.log('*** There are no supported authentication methods in the Web Server response.\n')
self.logger.log('*** Passing 401 to client.\n')
#-----------------------------------------------------------------------
def auth_routine(self):
""
self.logger.log('*** Authentication routine started.\n')
code = self.rserver_head_obj.get_http_code()
if code == '407':
self.logger.log('*** Got Error 407 - "Proxy authentication required".\n')
self.auth_407()
elif code == '401':
self.logger.log('*** Got Error 401 - "WWW authentication required".\n')
self.auth_401()
else:
self.logger.log('*** Authentication not required.\n')
self.logger.log('*** Authentication routine finished.\n')
#-----------------------------------------------------------------------
def check_rserver_response(self):
""
if self.rserver_header_sent == 1:
code = self.rserver_head_obj.get_http_code()
if code == '100':
# reaction on response '100' - 'Continue'
self.logger.log("*** Got and sent to client response '100'. Need to prepare for final response.\n")
self.reset_rserver()
if code not in ['401', '407']:
# if we have at least one request successfully served
# then we have to clear up authentication flags to be ready
# to authenticate yourself again if there is such a need
if self.proxy_authorization_tried or self.www_authorization_tried:
self.proxy_authorization_tried = 0
self.www_authorization_tried = 0
self.logger.log('*** Lowered authentication flags down. As the code is neither 401 nor 407.\n')
#-----------------------------------------------------------------------
# Need not for proxy module...
def check_connected_remote_server(self):
""
pass
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