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ansible-later/env_27/lib/python2.7/site-packages/paramiko/common.py
Robert Kaussow 04dec26a3a add missing dependencies and fix drone pipeline
2019-04-11 13:00:36 +02:00

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# 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.
"""
Common constants and global variables.
"""
import logging
from paramiko.py3compat import byte_chr, PY2, bytes_types, text_type, long
(
MSG_DISCONNECT,
MSG_IGNORE,
MSG_UNIMPLEMENTED,
MSG_DEBUG,
MSG_SERVICE_REQUEST,
MSG_SERVICE_ACCEPT,
) = range(1, 7)
(MSG_KEXINIT, MSG_NEWKEYS) = range(20, 22)
(
MSG_USERAUTH_REQUEST,
MSG_USERAUTH_FAILURE,
MSG_USERAUTH_SUCCESS,
MSG_USERAUTH_BANNER,
) = range(50, 54)
MSG_USERAUTH_PK_OK = 60
(MSG_USERAUTH_INFO_REQUEST, MSG_USERAUTH_INFO_RESPONSE) = range(60, 62)
(MSG_USERAUTH_GSSAPI_RESPONSE, MSG_USERAUTH_GSSAPI_TOKEN) = range(60, 62)
(
MSG_USERAUTH_GSSAPI_EXCHANGE_COMPLETE,
MSG_USERAUTH_GSSAPI_ERROR,
MSG_USERAUTH_GSSAPI_ERRTOK,
MSG_USERAUTH_GSSAPI_MIC,
) = range(63, 67)
HIGHEST_USERAUTH_MESSAGE_ID = 79
(MSG_GLOBAL_REQUEST, MSG_REQUEST_SUCCESS, MSG_REQUEST_FAILURE) = range(80, 83)
(
MSG_CHANNEL_OPEN,
MSG_CHANNEL_OPEN_SUCCESS,
MSG_CHANNEL_OPEN_FAILURE,
MSG_CHANNEL_WINDOW_ADJUST,
MSG_CHANNEL_DATA,
MSG_CHANNEL_EXTENDED_DATA,
MSG_CHANNEL_EOF,
MSG_CHANNEL_CLOSE,
MSG_CHANNEL_REQUEST,
MSG_CHANNEL_SUCCESS,
MSG_CHANNEL_FAILURE,
) = range(90, 101)
cMSG_DISCONNECT = byte_chr(MSG_DISCONNECT)
cMSG_IGNORE = byte_chr(MSG_IGNORE)
cMSG_UNIMPLEMENTED = byte_chr(MSG_UNIMPLEMENTED)
cMSG_DEBUG = byte_chr(MSG_DEBUG)
cMSG_SERVICE_REQUEST = byte_chr(MSG_SERVICE_REQUEST)
cMSG_SERVICE_ACCEPT = byte_chr(MSG_SERVICE_ACCEPT)
cMSG_KEXINIT = byte_chr(MSG_KEXINIT)
cMSG_NEWKEYS = byte_chr(MSG_NEWKEYS)
cMSG_USERAUTH_REQUEST = byte_chr(MSG_USERAUTH_REQUEST)
cMSG_USERAUTH_FAILURE = byte_chr(MSG_USERAUTH_FAILURE)
cMSG_USERAUTH_SUCCESS = byte_chr(MSG_USERAUTH_SUCCESS)
cMSG_USERAUTH_BANNER = byte_chr(MSG_USERAUTH_BANNER)
cMSG_USERAUTH_PK_OK = byte_chr(MSG_USERAUTH_PK_OK)
cMSG_USERAUTH_INFO_REQUEST = byte_chr(MSG_USERAUTH_INFO_REQUEST)
cMSG_USERAUTH_INFO_RESPONSE = byte_chr(MSG_USERAUTH_INFO_RESPONSE)
cMSG_USERAUTH_GSSAPI_RESPONSE = byte_chr(MSG_USERAUTH_GSSAPI_RESPONSE)
cMSG_USERAUTH_GSSAPI_TOKEN = byte_chr(MSG_USERAUTH_GSSAPI_TOKEN)
cMSG_USERAUTH_GSSAPI_EXCHANGE_COMPLETE = byte_chr(
MSG_USERAUTH_GSSAPI_EXCHANGE_COMPLETE
)
cMSG_USERAUTH_GSSAPI_ERROR = byte_chr(MSG_USERAUTH_GSSAPI_ERROR)
cMSG_USERAUTH_GSSAPI_ERRTOK = byte_chr(MSG_USERAUTH_GSSAPI_ERRTOK)
cMSG_USERAUTH_GSSAPI_MIC = byte_chr(MSG_USERAUTH_GSSAPI_MIC)
cMSG_GLOBAL_REQUEST = byte_chr(MSG_GLOBAL_REQUEST)
cMSG_REQUEST_SUCCESS = byte_chr(MSG_REQUEST_SUCCESS)
cMSG_REQUEST_FAILURE = byte_chr(MSG_REQUEST_FAILURE)
cMSG_CHANNEL_OPEN = byte_chr(MSG_CHANNEL_OPEN)
cMSG_CHANNEL_OPEN_SUCCESS = byte_chr(MSG_CHANNEL_OPEN_SUCCESS)
cMSG_CHANNEL_OPEN_FAILURE = byte_chr(MSG_CHANNEL_OPEN_FAILURE)
cMSG_CHANNEL_WINDOW_ADJUST = byte_chr(MSG_CHANNEL_WINDOW_ADJUST)
cMSG_CHANNEL_DATA = byte_chr(MSG_CHANNEL_DATA)
cMSG_CHANNEL_EXTENDED_DATA = byte_chr(MSG_CHANNEL_EXTENDED_DATA)
cMSG_CHANNEL_EOF = byte_chr(MSG_CHANNEL_EOF)
cMSG_CHANNEL_CLOSE = byte_chr(MSG_CHANNEL_CLOSE)
cMSG_CHANNEL_REQUEST = byte_chr(MSG_CHANNEL_REQUEST)
cMSG_CHANNEL_SUCCESS = byte_chr(MSG_CHANNEL_SUCCESS)
cMSG_CHANNEL_FAILURE = byte_chr(MSG_CHANNEL_FAILURE)
# for debugging:
MSG_NAMES = {
MSG_DISCONNECT: "disconnect",
MSG_IGNORE: "ignore",
MSG_UNIMPLEMENTED: "unimplemented",
MSG_DEBUG: "debug",
MSG_SERVICE_REQUEST: "service-request",
MSG_SERVICE_ACCEPT: "service-accept",
MSG_KEXINIT: "kexinit",
MSG_NEWKEYS: "newkeys",
30: "kex30",
31: "kex31",
32: "kex32",
33: "kex33",
34: "kex34",
40: "kex40",
41: "kex41",
MSG_USERAUTH_REQUEST: "userauth-request",
MSG_USERAUTH_FAILURE: "userauth-failure",
MSG_USERAUTH_SUCCESS: "userauth-success",
MSG_USERAUTH_BANNER: "userauth--banner",
MSG_USERAUTH_PK_OK: "userauth-60(pk-ok/info-request)",
MSG_USERAUTH_INFO_RESPONSE: "userauth-info-response",
MSG_GLOBAL_REQUEST: "global-request",
MSG_REQUEST_SUCCESS: "request-success",
MSG_REQUEST_FAILURE: "request-failure",
MSG_CHANNEL_OPEN: "channel-open",
MSG_CHANNEL_OPEN_SUCCESS: "channel-open-success",
MSG_CHANNEL_OPEN_FAILURE: "channel-open-failure",
MSG_CHANNEL_WINDOW_ADJUST: "channel-window-adjust",
MSG_CHANNEL_DATA: "channel-data",
MSG_CHANNEL_EXTENDED_DATA: "channel-extended-data",
MSG_CHANNEL_EOF: "channel-eof",
MSG_CHANNEL_CLOSE: "channel-close",
MSG_CHANNEL_REQUEST: "channel-request",
MSG_CHANNEL_SUCCESS: "channel-success",
MSG_CHANNEL_FAILURE: "channel-failure",
MSG_USERAUTH_GSSAPI_RESPONSE: "userauth-gssapi-response",
MSG_USERAUTH_GSSAPI_TOKEN: "userauth-gssapi-token",
MSG_USERAUTH_GSSAPI_EXCHANGE_COMPLETE: "userauth-gssapi-exchange-complete",
MSG_USERAUTH_GSSAPI_ERROR: "userauth-gssapi-error",
MSG_USERAUTH_GSSAPI_ERRTOK: "userauth-gssapi-error-token",
MSG_USERAUTH_GSSAPI_MIC: "userauth-gssapi-mic",
}
# authentication request return codes:
AUTH_SUCCESSFUL, AUTH_PARTIALLY_SUCCESSFUL, AUTH_FAILED = range(3)
# channel request failed reasons:
(
OPEN_SUCCEEDED,
OPEN_FAILED_ADMINISTRATIVELY_PROHIBITED,
OPEN_FAILED_CONNECT_FAILED,
OPEN_FAILED_UNKNOWN_CHANNEL_TYPE,
OPEN_FAILED_RESOURCE_SHORTAGE,
) = range(0, 5)
CONNECTION_FAILED_CODE = {
1: "Administratively prohibited",
2: "Connect failed",
3: "Unknown channel type",
4: "Resource shortage",
}
(
DISCONNECT_SERVICE_NOT_AVAILABLE,
DISCONNECT_AUTH_CANCELLED_BY_USER,
DISCONNECT_NO_MORE_AUTH_METHODS_AVAILABLE,
) = (7, 13, 14)
zero_byte = byte_chr(0)
one_byte = byte_chr(1)
four_byte = byte_chr(4)
max_byte = byte_chr(0xff)
cr_byte = byte_chr(13)
linefeed_byte = byte_chr(10)
crlf = cr_byte + linefeed_byte
if PY2:
cr_byte_value = cr_byte
linefeed_byte_value = linefeed_byte
else:
cr_byte_value = 13
linefeed_byte_value = 10
def asbytes(s):
"""Coerce to bytes if possible or return unchanged."""
if isinstance(s, bytes_types):
return s
if isinstance(s, text_type):
# Accept text and encode as utf-8 for compatibility only.
return s.encode("utf-8")
asbytes = getattr(s, "asbytes", None)
if asbytes is not None:
return asbytes()
# May be an object that implements the buffer api, let callers handle.
return s
xffffffff = long(0xffffffff)
x80000000 = long(0x80000000)
o666 = 438
o660 = 432
o644 = 420
o600 = 384
o777 = 511
o700 = 448
o70 = 56
DEBUG = logging.DEBUG
INFO = logging.INFO
WARNING = logging.WARNING
ERROR = logging.ERROR
CRITICAL = logging.CRITICAL
# Common IO/select/etc sleep period, in seconds
io_sleep = 0.01
DEFAULT_WINDOW_SIZE = 64 * 2 ** 15
DEFAULT_MAX_PACKET_SIZE = 2 ** 15
# lower bound on the max packet size we'll accept from the remote host
# Minimum packet size is 32768 bytes according to
# http://www.ietf.org/rfc/rfc4254.txt
MIN_WINDOW_SIZE = 2 ** 15
# However, according to http://www.ietf.org/rfc/rfc4253.txt it is perfectly
# legal to accept a size much smaller, as OpenSSH client does as size 16384.
MIN_PACKET_SIZE = 2 ** 12
# Max windows size according to http://www.ietf.org/rfc/rfc4254.txt
MAX_WINDOW_SIZE = 2 ** 32 - 1
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