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ansible-later/env_27/lib/python2.7/site-packages/paramiko/auth_handler.py

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add missing dependencies and fix drone pipeline
2019-04-11 11:00:36 +00:00
# Copyright (C) 2003-2007 Robey Pointer <robeypointer@gmail.com>
#
# This file is part of paramiko.
#
# Paramiko is free software; you can redistribute it and/or modify it under the
# terms of the GNU Lesser General Public License as published by the Free
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko 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 Lesser General Public License for more
# details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with Paramiko; if not, write to the Free Software Foundation, Inc.,
# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
"""
`.AuthHandler`
"""
import weakref
import time
from paramiko.common import (
cMSG_SERVICE_REQUEST,
cMSG_DISCONNECT,
DISCONNECT_SERVICE_NOT_AVAILABLE,
DISCONNECT_NO_MORE_AUTH_METHODS_AVAILABLE,
cMSG_USERAUTH_REQUEST,
cMSG_SERVICE_ACCEPT,
DEBUG,
AUTH_SUCCESSFUL,
INFO,
cMSG_USERAUTH_SUCCESS,
cMSG_USERAUTH_FAILURE,
AUTH_PARTIALLY_SUCCESSFUL,
cMSG_USERAUTH_INFO_REQUEST,
WARNING,
AUTH_FAILED,
cMSG_USERAUTH_PK_OK,
cMSG_USERAUTH_INFO_RESPONSE,
MSG_SERVICE_REQUEST,
MSG_SERVICE_ACCEPT,
MSG_USERAUTH_REQUEST,
MSG_USERAUTH_SUCCESS,
MSG_USERAUTH_FAILURE,
MSG_USERAUTH_BANNER,
MSG_USERAUTH_INFO_REQUEST,
MSG_USERAUTH_INFO_RESPONSE,
cMSG_USERAUTH_GSSAPI_RESPONSE,
cMSG_USERAUTH_GSSAPI_TOKEN,
cMSG_USERAUTH_GSSAPI_MIC,
MSG_USERAUTH_GSSAPI_RESPONSE,
MSG_USERAUTH_GSSAPI_TOKEN,
MSG_USERAUTH_GSSAPI_ERROR,
MSG_USERAUTH_GSSAPI_ERRTOK,
MSG_USERAUTH_GSSAPI_MIC,
MSG_NAMES,
cMSG_USERAUTH_BANNER,
)
from paramiko.message import Message
from paramiko.py3compat import bytestring
from paramiko.ssh_exception import (
SSHException,
AuthenticationException,
BadAuthenticationType,
PartialAuthentication,
)
from paramiko.server import InteractiveQuery
from paramiko.ssh_gss import GSSAuth, GSS_EXCEPTIONS
class AuthHandler(object):
"""
Internal class to handle the mechanics of authentication.
"""
def __init__(self, transport):
self.transport = weakref.proxy(transport)
self.username = None
self.authenticated = False
self.auth_event = None
self.auth_method = ""
self.banner = None
self.password = None
self.private_key = None
self.interactive_handler = None
self.submethods = None
# for server mode:
self.auth_username = None
self.auth_fail_count = 0
# for GSSAPI
self.gss_host = None
self.gss_deleg_creds = True
def _log(self, *args):
return self.transport._log(*args)
def is_authenticated(self):
return self.authenticated
def get_username(self):
if self.transport.server_mode:
return self.auth_username
else:
return self.username
def auth_none(self, username, event):
self.transport.lock.acquire()
try:
self.auth_event = event
self.auth_method = "none"
self.username = username
self._request_auth()
finally:
self.transport.lock.release()
def auth_publickey(self, username, key, event):
self.transport.lock.acquire()
try:
self.auth_event = event
self.auth_method = "publickey"
self.username = username
self.private_key = key
self._request_auth()
finally:
self.transport.lock.release()
def auth_password(self, username, password, event):
self.transport.lock.acquire()
try:
self.auth_event = event
self.auth_method = "password"
self.username = username
self.password = password
self._request_auth()
finally:
self.transport.lock.release()
def auth_interactive(self, username, handler, event, submethods=""):
"""
response_list = handler(title, instructions, prompt_list)
"""
self.transport.lock.acquire()
try:
self.auth_event = event
self.auth_method = "keyboard-interactive"
self.username = username
self.interactive_handler = handler
self.submethods = submethods
self._request_auth()
finally:
self.transport.lock.release()
def auth_gssapi_with_mic(self, username, gss_host, gss_deleg_creds, event):
self.transport.lock.acquire()
try:
self.auth_event = event
self.auth_method = "gssapi-with-mic"
self.username = username
self.gss_host = gss_host
self.gss_deleg_creds = gss_deleg_creds
self._request_auth()
finally:
self.transport.lock.release()
def auth_gssapi_keyex(self, username, event):
self.transport.lock.acquire()
try:
self.auth_event = event
self.auth_method = "gssapi-keyex"
self.username = username
self._request_auth()
finally:
self.transport.lock.release()
def abort(self):
if self.auth_event is not None:
self.auth_event.set()
# ...internals...
def _request_auth(self):
m = Message()
m.add_byte(cMSG_SERVICE_REQUEST)
m.add_string("ssh-userauth")
self.transport._send_message(m)
def _disconnect_service_not_available(self):
m = Message()
m.add_byte(cMSG_DISCONNECT)
m.add_int(DISCONNECT_SERVICE_NOT_AVAILABLE)
m.add_string("Service not available")
m.add_string("en")
self.transport._send_message(m)
self.transport.close()
def _disconnect_no_more_auth(self):
m = Message()
m.add_byte(cMSG_DISCONNECT)
m.add_int(DISCONNECT_NO_MORE_AUTH_METHODS_AVAILABLE)
m.add_string("No more auth methods available")
m.add_string("en")
self.transport._send_message(m)
self.transport.close()
def _get_session_blob(self, key, service, username):
m = Message()
m.add_string(self.transport.session_id)
m.add_byte(cMSG_USERAUTH_REQUEST)
m.add_string(username)
m.add_string(service)
m.add_string("publickey")
m.add_boolean(True)
# Use certificate contents, if available, plain pubkey otherwise
if key.public_blob:
m.add_string(key.public_blob.key_type)
m.add_string(key.public_blob.key_blob)
else:
m.add_string(key.get_name())
m.add_string(key)
return m.asbytes()
def wait_for_response(self, event):
max_ts = None
if self.transport.auth_timeout is not None:
max_ts = time.time() + self.transport.auth_timeout
while True:
event.wait(0.1)
if not self.transport.is_active():
e = self.transport.get_exception()
if (e is None) or issubclass(e.__class__, EOFError):
e = AuthenticationException("Authentication failed.")
raise e
if event.is_set():
break
if max_ts is not None and max_ts <= time.time():
raise AuthenticationException("Authentication timeout.")
if not self.is_authenticated():
e = self.transport.get_exception()
if e is None:
e = AuthenticationException("Authentication failed.")
# this is horrible. Python Exception isn't yet descended from
# object, so type(e) won't work. :(
if issubclass(e.__class__, PartialAuthentication):
return e.allowed_types
raise e
return []
def _parse_service_request(self, m):
service = m.get_text()
if self.transport.server_mode and (service == "ssh-userauth"):
# accepted
m = Message()
m.add_byte(cMSG_SERVICE_ACCEPT)
m.add_string(service)
self.transport._send_message(m)
banner, language = self.transport.server_object.get_banner()
if banner:
m = Message()
m.add_byte(cMSG_USERAUTH_BANNER)
m.add_string(banner)
m.add_string(language)
self.transport._send_message(m)
return
# dunno this one
self._disconnect_service_not_available()
def _parse_service_accept(self, m):
service = m.get_text()
if service == "ssh-userauth":
self._log(DEBUG, "userauth is OK")
m = Message()
m.add_byte(cMSG_USERAUTH_REQUEST)
m.add_string(self.username)
m.add_string("ssh-connection")
m.add_string(self.auth_method)
if self.auth_method == "password":
m.add_boolean(False)
password = bytestring(self.password)
m.add_string(password)
elif self.auth_method == "publickey":
m.add_boolean(True)
# Use certificate contents, if available, plain pubkey
# otherwise
if self.private_key.public_blob:
m.add_string(self.private_key.public_blob.key_type)
m.add_string(self.private_key.public_blob.key_blob)
else:
m.add_string(self.private_key.get_name())
m.add_string(self.private_key)
blob = self._get_session_blob(
self.private_key, "ssh-connection", self.username
)
sig = self.private_key.sign_ssh_data(blob)
m.add_string(sig)
elif self.auth_method == "keyboard-interactive":
m.add_string("")
m.add_string(self.submethods)
elif self.auth_method == "gssapi-with-mic":
sshgss = GSSAuth(self.auth_method, self.gss_deleg_creds)
m.add_bytes(sshgss.ssh_gss_oids())
# send the supported GSSAPI OIDs to the server
self.transport._send_message(m)
ptype, m = self.transport.packetizer.read_message()
if ptype == MSG_USERAUTH_BANNER:
self._parse_userauth_banner(m)
ptype, m = self.transport.packetizer.read_message()
if ptype == MSG_USERAUTH_GSSAPI_RESPONSE:
# Read the mechanism selected by the server. We send just
# the Kerberos V5 OID, so the server can only respond with
# this OID.
mech = m.get_string()
m = Message()
m.add_byte(cMSG_USERAUTH_GSSAPI_TOKEN)
try:
m.add_string(
sshgss.ssh_init_sec_context(
self.gss_host, mech, self.username
)
)
except GSS_EXCEPTIONS as e:
return self._handle_local_gss_failure(e)
self.transport._send_message(m)
while True:
ptype, m = self.transport.packetizer.read_message()
if ptype == MSG_USERAUTH_GSSAPI_TOKEN:
srv_token = m.get_string()
try:
next_token = sshgss.ssh_init_sec_context(
self.gss_host,
mech,
self.username,
srv_token,
)
except GSS_EXCEPTIONS as e:
return self._handle_local_gss_failure(e)
# After this step the GSSAPI should not return any
# token. If it does, we keep sending the token to
# the server until no more token is returned.
if next_token is None:
break
else:
m = Message()
m.add_byte(cMSG_USERAUTH_GSSAPI_TOKEN)
m.add_string(next_token)
self.transport.send_message(m)
else:
raise SSHException(
"Received Package: {}".format(MSG_NAMES[ptype])
)
m = Message()
m.add_byte(cMSG_USERAUTH_GSSAPI_MIC)
# send the MIC to the server
m.add_string(sshgss.ssh_get_mic(self.transport.session_id))
elif ptype == MSG_USERAUTH_GSSAPI_ERRTOK:
# RFC 4462 says we are not required to implement GSS-API
# error messages.
# See RFC 4462 Section 3.8 in
# http://www.ietf.org/rfc/rfc4462.txt
raise SSHException("Server returned an error token")
elif ptype == MSG_USERAUTH_GSSAPI_ERROR:
maj_status = m.get_int()
min_status = m.get_int()
err_msg = m.get_string()
m.get_string() # Lang tag - discarded
raise SSHException(
"""GSS-API Error:
Major Status: {}
Minor Status: {}
Error Message: {}
""".format(
maj_status, min_status, err_msg
)
)
elif ptype == MSG_USERAUTH_FAILURE:
self._parse_userauth_failure(m)
return
else:
raise SSHException(
"Received Package: {}".format(MSG_NAMES[ptype])
)
elif (
self.auth_method == "gssapi-keyex"
and self.transport.gss_kex_used
):
kexgss = self.transport.kexgss_ctxt
kexgss.set_username(self.username)
mic_token = kexgss.ssh_get_mic(self.transport.session_id)
m.add_string(mic_token)
elif self.auth_method == "none":
pass
else:
raise SSHException(
'Unknown auth method "{}"'.format(self.auth_method)
)
self.transport._send_message(m)
else:
self._log(
DEBUG, 'Service request "{}" accepted (?)'.format(service)
)
def _send_auth_result(self, username, method, result):
# okay, send result
m = Message()
if result == AUTH_SUCCESSFUL:
self._log(INFO, "Auth granted ({}).".format(method))
m.add_byte(cMSG_USERAUTH_SUCCESS)
self.authenticated = True
else:
self._log(INFO, "Auth rejected ({}).".format(method))
m.add_byte(cMSG_USERAUTH_FAILURE)
m.add_string(
self.transport.server_object.get_allowed_auths(username)
)
if result == AUTH_PARTIALLY_SUCCESSFUL:
m.add_boolean(True)
else:
m.add_boolean(False)
self.auth_fail_count += 1
self.transport._send_message(m)
if self.auth_fail_count >= 10:
self._disconnect_no_more_auth()
if result == AUTH_SUCCESSFUL:
self.transport._auth_trigger()
def _interactive_query(self, q):
# make interactive query instead of response
m = Message()
m.add_byte(cMSG_USERAUTH_INFO_REQUEST)
m.add_string(q.name)
m.add_string(q.instructions)
m.add_string(bytes())
m.add_int(len(q.prompts))
for p in q.prompts:
m.add_string(p[0])
m.add_boolean(p[1])
self.transport._send_message(m)
def _parse_userauth_request(self, m):
if not self.transport.server_mode:
# er, uh... what?
m = Message()
m.add_byte(cMSG_USERAUTH_FAILURE)
m.add_string("none")
m.add_boolean(False)
self.transport._send_message(m)
return
if self.authenticated:
# ignore
return
username = m.get_text()
service = m.get_text()
method = m.get_text()
self._log(
DEBUG,
"Auth request (type={}) service={}, username={}".format(
method, service, username
),
)
if service != "ssh-connection":
self._disconnect_service_not_available()
return
if (self.auth_username is not None) and (
self.auth_username != username
):
self._log(
WARNING,
"Auth rejected because the client attempted to change username in mid-flight", # noqa
)
self._disconnect_no_more_auth()
return
self.auth_username = username
# check if GSS-API authentication is enabled
gss_auth = self.transport.server_object.enable_auth_gssapi()
if method == "none":
result = self.transport.server_object.check_auth_none(username)
elif method == "password":
changereq = m.get_boolean()
password = m.get_binary()
try:
password = password.decode("UTF-8")
except UnicodeError:
# some clients/servers expect non-utf-8 passwords!
# in this case, just return the raw byte string.
pass
if changereq:
# always treated as failure, since we don't support changing
# passwords, but collect the list of valid auth types from
# the callback anyway
self._log(DEBUG, "Auth request to change passwords (rejected)")
newpassword = m.get_binary()
try:
newpassword = newpassword.decode("UTF-8", "replace")
except UnicodeError:
pass
result = AUTH_FAILED
else:
result = self.transport.server_object.check_auth_password(
username, password
)
elif method == "publickey":
sig_attached = m.get_boolean()
keytype = m.get_text()
keyblob = m.get_binary()
try:
key = self.transport._key_info[keytype](Message(keyblob))
except SSHException as e:
self._log(INFO, "Auth rejected: public key: {}".format(str(e)))
key = None
except Exception as e:
msg = (
"Auth rejected: unsupported or mangled public key ({}: {})"
) # noqa
self._log(INFO, msg.format(e.__class__.__name__, e))
key = None
if key is None:
self._disconnect_no_more_auth()
return
# first check if this key is okay... if not, we can skip the verify
result = self.transport.server_object.check_auth_publickey(
username, key
)
if result != AUTH_FAILED:
# key is okay, verify it
if not sig_attached:
# client wants to know if this key is acceptable, before it
# signs anything... send special "ok" message
m = Message()
m.add_byte(cMSG_USERAUTH_PK_OK)
m.add_string(keytype)
m.add_string(keyblob)
self.transport._send_message(m)
return
sig = Message(m.get_binary())
blob = self._get_session_blob(key, service, username)
if not key.verify_ssh_sig(blob, sig):
self._log(INFO, "Auth rejected: invalid signature")
result = AUTH_FAILED
elif method == "keyboard-interactive":
submethods = m.get_string()
result = self.transport.server_object.check_auth_interactive(
username, submethods
)
if isinstance(result, InteractiveQuery):
# make interactive query instead of response
self._interactive_query(result)
return
elif method == "gssapi-with-mic" and gss_auth:
sshgss = GSSAuth(method)
# Read the number of OID mechanisms supported by the client.
# OpenSSH sends just one OID. It's the Kerveros V5 OID and that's
# the only OID we support.
mechs = m.get_int()
# We can't accept more than one OID, so if the SSH client sends
# more than one, disconnect.
if mechs > 1:
self._log(
INFO,
"Disconnect: Received more than one GSS-API OID mechanism",
)
self._disconnect_no_more_auth()
desired_mech = m.get_string()
mech_ok = sshgss.ssh_check_mech(desired_mech)
# if we don't support the mechanism, disconnect.
if not mech_ok:
self._log(
INFO,
"Disconnect: Received an invalid GSS-API OID mechanism",
)
self._disconnect_no_more_auth()
# send the Kerberos V5 GSSAPI OID to the client
supported_mech = sshgss.ssh_gss_oids("server")
# RFC 4462 says we are not required to implement GSS-API error
# messages. See section 3.8 in http://www.ietf.org/rfc/rfc4462.txt
m = Message()
m.add_byte(cMSG_USERAUTH_GSSAPI_RESPONSE)
m.add_bytes(supported_mech)
self.transport.auth_handler = GssapiWithMicAuthHandler(
self, sshgss
)
self.transport._expected_packet = (
MSG_USERAUTH_GSSAPI_TOKEN,
MSG_USERAUTH_REQUEST,
MSG_SERVICE_REQUEST,
)
self.transport._send_message(m)
return
elif method == "gssapi-keyex" and gss_auth:
mic_token = m.get_string()
sshgss = self.transport.kexgss_ctxt
if sshgss is None:
# If there is no valid context, we reject the authentication
result = AUTH_FAILED
self._send_auth_result(username, method, result)
try:
sshgss.ssh_check_mic(
mic_token, self.transport.session_id, self.auth_username
)
except Exception:
result = AUTH_FAILED
self._send_auth_result(username, method, result)
raise
result = AUTH_SUCCESSFUL
self.transport.server_object.check_auth_gssapi_keyex(
username, result
)
else:
result = self.transport.server_object.check_auth_none(username)
# okay, send result
self._send_auth_result(username, method, result)
def _parse_userauth_success(self, m):
self._log(
INFO, "Authentication ({}) successful!".format(self.auth_method)
)
self.authenticated = True
self.transport._auth_trigger()
if self.auth_event is not None:
self.auth_event.set()
def _parse_userauth_failure(self, m):
authlist = m.get_list()
partial = m.get_boolean()
if partial:
self._log(INFO, "Authentication continues...")
self._log(DEBUG, "Methods: " + str(authlist))
self.transport.saved_exception = PartialAuthentication(authlist)
elif self.auth_method not in authlist:
for msg in (
"Authentication type ({}) not permitted.".format(
self.auth_method
),
"Allowed methods: {}".format(authlist),
):
self._log(DEBUG, msg)
self.transport.saved_exception = BadAuthenticationType(
"Bad authentication type", authlist
)
else:
self._log(
INFO, "Authentication ({}) failed.".format(self.auth_method)
)
self.authenticated = False
self.username = None
if self.auth_event is not None:
self.auth_event.set()
def _parse_userauth_banner(self, m):
banner = m.get_string()
self.banner = banner
self._log(INFO, "Auth banner: {}".format(banner))
# who cares.
def _parse_userauth_info_request(self, m):
if self.auth_method != "keyboard-interactive":
raise SSHException("Illegal info request from server")
title = m.get_text()
instructions = m.get_text()
m.get_binary() # lang
prompts = m.get_int()
prompt_list = []
for i in range(prompts):
prompt_list.append((m.get_text(), m.get_boolean()))
response_list = self.interactive_handler(
title, instructions, prompt_list
)
m = Message()
m.add_byte(cMSG_USERAUTH_INFO_RESPONSE)
m.add_int(len(response_list))
for r in response_list:
m.add_string(r)
self.transport._send_message(m)
def _parse_userauth_info_response(self, m):
if not self.transport.server_mode:
raise SSHException("Illegal info response from server")
n = m.get_int()
responses = []
for i in range(n):
responses.append(m.get_text())
result = self.transport.server_object.check_auth_interactive_response(
responses
)
if isinstance(result, InteractiveQuery):
# make interactive query instead of response
self._interactive_query(result)
return
self._send_auth_result(
self.auth_username, "keyboard-interactive", result
)
def _handle_local_gss_failure(self, e):
self.transport.saved_exception = e
self._log(DEBUG, "GSSAPI failure: {}".format(e))
self._log(INFO, "Authentication ({}) failed.".format(self.auth_method))
self.authenticated = False
self.username = None
if self.auth_event is not None:
self.auth_event.set()
return
# TODO: do the same to the other tables, in Transport.
# TODO 3.0: MAY make sense to make these tables into actual
# classes/instances that can be fed a mode bool or whatever. Or,
# alternately (both?) make the message types small classes or enums that
# embed this info within themselves (which could also then tidy up the
# current 'integer -> human readable short string' stuff in common.py).
# TODO: if we do that, also expose 'em publicly.
# Messages which should be handled _by_ servers (sent by clients)
_server_handler_table = {
MSG_SERVICE_REQUEST: _parse_service_request,
MSG_USERAUTH_REQUEST: _parse_userauth_request,
MSG_USERAUTH_INFO_RESPONSE: _parse_userauth_info_response,
}
# Messages which should be handled _by_ clients (sent by servers)
_client_handler_table = {
MSG_SERVICE_ACCEPT: _parse_service_accept,
MSG_USERAUTH_SUCCESS: _parse_userauth_success,
MSG_USERAUTH_FAILURE: _parse_userauth_failure,
MSG_USERAUTH_BANNER: _parse_userauth_banner,
MSG_USERAUTH_INFO_REQUEST: _parse_userauth_info_request,
}
# NOTE: prior to the fix for #1283, this was a static dict instead of a
# property. Should be backwards compatible in most/all cases.
@property
def _handler_table(self):
if self.transport.server_mode:
return self._server_handler_table
else:
return self._client_handler_table
class GssapiWithMicAuthHandler(object):
"""A specialized Auth handler for gssapi-with-mic
During the GSSAPI token exchange we need a modified dispatch table,
because the packet type numbers are not unique.
"""
method = "gssapi-with-mic"
def __init__(self, delegate, sshgss):
self._delegate = delegate
self.sshgss = sshgss
def abort(self):
self._restore_delegate_auth_handler()
return self._delegate.abort()
@property
def transport(self):
return self._delegate.transport
@property
def _send_auth_result(self):
return self._delegate._send_auth_result
@property
def auth_username(self):
return self._delegate.auth_username
@property
def gss_host(self):
return self._delegate.gss_host
def _restore_delegate_auth_handler(self):
self.transport.auth_handler = self._delegate
def _parse_userauth_gssapi_token(self, m):
client_token = m.get_string()
# use the client token as input to establish a secure
# context.
sshgss = self.sshgss
try:
token = sshgss.ssh_accept_sec_context(
self.gss_host, client_token, self.auth_username
)
except Exception as e:
self.transport.saved_exception = e
result = AUTH_FAILED
self._restore_delegate_auth_handler()
self._send_auth_result(self.auth_username, self.method, result)
raise
if token is not None:
m = Message()
m.add_byte(cMSG_USERAUTH_GSSAPI_TOKEN)
m.add_string(token)
self.transport._expected_packet = (
MSG_USERAUTH_GSSAPI_TOKEN,
MSG_USERAUTH_GSSAPI_MIC,
MSG_USERAUTH_REQUEST,
)
self.transport._send_message(m)
def _parse_userauth_gssapi_mic(self, m):
mic_token = m.get_string()
sshgss = self.sshgss
username = self.auth_username
self._restore_delegate_auth_handler()
try:
sshgss.ssh_check_mic(
mic_token, self.transport.session_id, username
)
except Exception as e:
self.transport.saved_exception = e
result = AUTH_FAILED
self._send_auth_result(username, self.method, result)
raise
# TODO: Implement client credential saving.
# The OpenSSH server is able to create a TGT with the delegated
# client credentials, but this is not supported by GSS-API.
result = AUTH_SUCCESSFUL
self.transport.server_object.check_auth_gssapi_with_mic(
username, result
)
# okay, send result
self._send_auth_result(username, self.method, result)
def _parse_service_request(self, m):
self._restore_delegate_auth_handler()
return self._delegate._parse_service_request(m)
def _parse_userauth_request(self, m):
self._restore_delegate_auth_handler()
return self._delegate._parse_userauth_request(m)
__handler_table = {
MSG_SERVICE_REQUEST: _parse_service_request,
MSG_USERAUTH_REQUEST: _parse_userauth_request,
MSG_USERAUTH_GSSAPI_TOKEN: _parse_userauth_gssapi_token,
MSG_USERAUTH_GSSAPI_MIC: _parse_userauth_gssapi_mic,
}
@property
def _handler_table(self):
# TODO: determine if we can cut this up like we did for the primary
# AuthHandler class.
return self.__handler_table
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