community.general/lib/ansible/plugins/connection/winrm.py
Toshio Kuratomi 4ed88512e4 Move uses of to_bytes, to_text, to_native to use the module_utils version (#17423)
We couldn't copy to_unicode, to_bytes, to_str into module_utils because
of licensing.  So once created it we had two sets of functions that did
the same things but had different implementations.  To remedy that, this
change removes the ansible.utils.unicode versions of those functions.
2016-09-06 22:54:17 -07:00

441 lines
20 KiB
Python

# (c) 2014, Chris Church <chris@ninemoreminutes.com>
#
# This file is part of Ansible.
#
# Ansible 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 3 of the License, or
# (at your option) any later version.
#
# Ansible 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 Ansible. If not, see <http://www.gnu.org/licenses/>.
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type
import base64
import inspect
import os
import re
import shlex
import traceback
import json
HAVE_KERBEROS = False
try:
import kerberos
HAVE_KERBEROS = True
except ImportError:
pass
from ansible.compat.six import string_types
from ansible.compat.six.moves.urllib.parse import urlunsplit
from ansible.errors import AnsibleError, AnsibleConnectionFailure
from ansible.errors import AnsibleFileNotFound
from ansible.module_utils._text import to_bytes, to_native, to_text
from ansible.plugins.connection import ConnectionBase
from ansible.utils.hashing import secure_hash
from ansible.utils.path import makedirs_safe
try:
import winrm
from winrm import Response
from winrm.protocol import Protocol
except ImportError:
raise AnsibleError("winrm is not installed")
try:
import xmltodict
except ImportError:
raise AnsibleError("xmltodict is not installed")
try:
from __main__ import display
except ImportError:
from ansible.utils.display import Display
display = Display()
class Connection(ConnectionBase):
'''WinRM connections over HTTP/HTTPS.'''
transport = 'winrm'
module_implementation_preferences = ('.ps1', '.exe', '')
become_methods = []
allow_executable = False
def __init__(self, *args, **kwargs):
self.has_pipelining = False
self.protocol = None
self.shell_id = None
self.delegate = None
self._shell_type = 'powershell'
# FUTURE: Add runas support
super(Connection, self).__init__(*args, **kwargs)
def set_host_overrides(self, host, hostvars=None):
'''
Override WinRM-specific options from host variables.
'''
self._winrm_host = self._play_context.remote_addr
self._winrm_port = int(self._play_context.port or 5986)
self._winrm_scheme = hostvars.get('ansible_winrm_scheme', 'http' if self._winrm_port == 5985 else 'https')
self._winrm_path = hostvars.get('ansible_winrm_path', '/wsman')
self._winrm_user = self._play_context.remote_user
self._winrm_pass = self._play_context.password
if hasattr(winrm, 'FEATURE_SUPPORTED_AUTHTYPES'):
self._winrm_supported_authtypes = set(winrm.FEATURE_SUPPORTED_AUTHTYPES)
else:
# for legacy versions of pywinrm, use the values we know are supported
self._winrm_supported_authtypes = set(['plaintext','ssl','kerberos'])
# TODO: figure out what we want to do with auto-transport selection in the face of NTLM/Kerb/CredSSP/Cert/Basic
transport_selector = 'ssl' if self._winrm_scheme == 'https' else 'plaintext'
if HAVE_KERBEROS and ((self._winrm_user and '@' in self._winrm_user)):
self._winrm_transport = 'kerberos,%s' % transport_selector
else:
self._winrm_transport = transport_selector
self._winrm_transport = hostvars.get('ansible_winrm_transport', self._winrm_transport)
if isinstance(self._winrm_transport, string_types):
self._winrm_transport = [x.strip() for x in self._winrm_transport.split(',') if x.strip()]
unsupported_transports = set(self._winrm_transport).difference(self._winrm_supported_authtypes)
if unsupported_transports:
raise AnsibleError('The installed version of WinRM does not support transport(s) %s' % list(unsupported_transports))
# arg names we're going passing directly
internal_kwarg_mask = set(['self', 'endpoint', 'transport', 'username', 'password', 'scheme', 'path'])
self._winrm_kwargs = dict(username=self._winrm_user, password=self._winrm_pass)
argspec = inspect.getargspec(Protocol.__init__)
supported_winrm_args = set(argspec.args)
supported_winrm_args.update(internal_kwarg_mask)
passed_winrm_args = set([v.replace('ansible_winrm_', '') for v in hostvars if v.startswith('ansible_winrm_')])
unsupported_args = passed_winrm_args.difference(supported_winrm_args)
# warn for kwargs unsupported by the installed version of pywinrm
for arg in unsupported_args:
display.warning("ansible_winrm_{0} unsupported by pywinrm (is an up-to-date version of pywinrm installed?)".format(arg))
# pass through matching kwargs, excluding the list we want to treat specially
for arg in passed_winrm_args.difference(internal_kwarg_mask).intersection(supported_winrm_args):
self._winrm_kwargs[arg] = hostvars['ansible_winrm_%s' % arg]
def _winrm_connect(self):
'''
Establish a WinRM connection over HTTP/HTTPS.
'''
display.vvv("ESTABLISH WINRM CONNECTION FOR USER: %s on PORT %s TO %s" %
(self._winrm_user, self._winrm_port, self._winrm_host), host=self._winrm_host)
netloc = '%s:%d' % (self._winrm_host, self._winrm_port)
endpoint = urlunsplit((self._winrm_scheme, netloc, self._winrm_path, '', ''))
errors = []
for transport in self._winrm_transport:
if transport == 'kerberos' and not HAVE_KERBEROS:
errors.append('kerberos: the python kerberos library is not installed')
continue
display.vvvvv('WINRM CONNECT: transport=%s endpoint=%s' % (transport, endpoint), host=self._winrm_host)
try:
protocol = Protocol(endpoint, transport=transport, **self._winrm_kwargs)
# open the shell from connect so we know we're able to talk to the server
if not self.shell_id:
self.shell_id = protocol.open_shell(codepage=65001) # UTF-8
display.vvvvv('WINRM OPEN SHELL: %s' % self.shell_id, host=self._winrm_host)
return protocol
except Exception as e:
err_msg = to_text(e).strip()
if re.search(to_text(r'Operation\s+?timed\s+?out'), err_msg, re.I):
raise AnsibleError('the connection attempt timed out')
m = re.search(to_text(r'Code\s+?(\d{3})'), err_msg)
if m:
code = int(m.groups()[0])
if code == 401:
err_msg = 'the specified credentials were rejected by the server'
elif code == 411:
return protocol
errors.append(u'%s: %s' % (transport, err_msg))
display.vvvvv(u'WINRM CONNECTION ERROR: %s\n%s' % (err_msg, to_text(traceback.format_exc())), host=self._winrm_host)
if errors:
raise AnsibleConnectionFailure(', '.join(map(to_native, errors)))
else:
raise AnsibleError('No transport found for WinRM connection')
def _winrm_send_input(self, protocol, shell_id, command_id, stdin, eof=False):
rq = {'env:Envelope': protocol._get_soap_header(
resource_uri='http://schemas.microsoft.com/wbem/wsman/1/windows/shell/cmd',
action='http://schemas.microsoft.com/wbem/wsman/1/windows/shell/Send',
shell_id=shell_id)}
stream = rq['env:Envelope'].setdefault('env:Body', {}).setdefault('rsp:Send', {})\
.setdefault('rsp:Stream', {})
stream['@Name'] = 'stdin'
stream['@CommandId'] = command_id
stream['#text'] = base64.b64encode(to_bytes(stdin))
if eof:
stream['@End'] = 'true'
protocol.send_message(xmltodict.unparse(rq))
def _winrm_exec(self, command, args=(), from_exec=False, stdin_iterator=None):
if not self.protocol:
self.protocol = self._winrm_connect()
self._connected = True
if from_exec:
display.vvvvv("WINRM EXEC %r %r" % (command, args), host=self._winrm_host)
else:
display.vvvvvv("WINRM EXEC %r %r" % (command, args), host=self._winrm_host)
command_id = None
try:
stdin_push_failed = False
command_id = self.protocol.run_command(self.shell_id, to_bytes(command), map(to_bytes, args), console_mode_stdin=(stdin_iterator is None))
# TODO: try/except around this, so we can get/return the command result on a broken pipe or other failure (probably more useful than the 500 that comes from this)
try:
if stdin_iterator:
for (data, is_last) in stdin_iterator:
self._winrm_send_input(self.protocol, self.shell_id, command_id, data, eof=is_last)
except Exception as ex:
from traceback import format_exc
display.warning("FATAL ERROR DURING FILE TRANSFER: %s" % format_exc(ex))
stdin_push_failed = True
if stdin_push_failed:
raise AnsibleError('winrm send_input failed')
# NB: this can hang if the receiver is still running (eg, network failed a Send request but the server's still happy).
# FUTURE: Consider adding pywinrm status check/abort operations to see if the target is still running after a failure.
response = Response(self.protocol.get_command_output(self.shell_id, command_id))
# TODO: check result from response and set stdin_push_failed if we have nonzero
if from_exec:
display.vvvvv('WINRM RESULT %r' % to_text(response), host=self._winrm_host)
else:
display.vvvvvv('WINRM RESULT %r' % to_text(response), host=self._winrm_host)
display.vvvvvv('WINRM STDOUT %s' % to_text(response.std_out), host=self._winrm_host)
display.vvvvvv('WINRM STDERR %s' % to_text(response.std_err), host=self._winrm_host)
if stdin_push_failed:
raise AnsibleError('winrm send_input failed; \nstdout: %s\nstderr %s' % (response.std_out, response.std_err))
return response
finally:
if command_id:
self.protocol.cleanup_command(self.shell_id, command_id)
def _connect(self):
super(Connection, self)._connect()
if not self.protocol:
self.protocol = self._winrm_connect()
self._connected = True
return self
def _reset(self): # used by win_reboot (and any other action that might need to bounce the state)
self.protocol = None
self.shell_id = None
self._connect()
def exec_command(self, cmd, in_data=None, sudoable=True):
super(Connection, self).exec_command(cmd, in_data=in_data, sudoable=sudoable)
cmd_parts = shlex.split(to_bytes(cmd), posix=False)
cmd_parts = map(to_text, cmd_parts)
script = None
cmd_ext = cmd_parts and self._shell._unquote(cmd_parts[0]).lower()[-4:] or ''
# Support running .ps1 files (via script/raw).
if cmd_ext == '.ps1':
script = '& %s' % cmd
# Support running .bat/.cmd files; change back to the default system encoding instead of UTF-8.
elif cmd_ext in ('.bat', '.cmd'):
script = '[System.Console]::OutputEncoding = [System.Text.Encoding]::Default; & %s' % cmd
# Encode the command if not already encoded; supports running simple PowerShell commands via raw.
elif '-EncodedCommand' not in cmd_parts:
script = cmd
if script:
cmd_parts = self._shell._encode_script(script, as_list=True, strict_mode=False)
if '-EncodedCommand' in cmd_parts:
encoded_cmd = cmd_parts[cmd_parts.index('-EncodedCommand') + 1]
decoded_cmd = to_text(base64.b64decode(encoded_cmd).decode('utf-16-le'))
display.vvv("EXEC %s" % decoded_cmd, host=self._winrm_host)
else:
display.vvv("EXEC %s" % cmd, host=self._winrm_host)
try:
result = self._winrm_exec(cmd_parts[0], cmd_parts[1:], from_exec=True)
except Exception:
traceback.print_exc()
raise AnsibleConnectionFailure("failed to exec cmd %s" % cmd)
result.std_out = to_bytes(result.std_out)
result.std_err = to_bytes(result.std_err)
# parse just stderr from CLIXML output
if self.is_clixml(result.std_err):
try:
result.std_err = self.parse_clixml_stream(result.std_err)
except:
# unsure if we're guaranteed a valid xml doc- use raw output in case of error
pass
return (result.status_code, result.std_out, result.std_err)
def is_clixml(self, value):
return value.startswith("#< CLIXML")
# hacky way to get just stdout- not always sure of doc framing here, so use with care
def parse_clixml_stream(self, clixml_doc, stream_name='Error'):
clear_xml = clixml_doc.replace('#< CLIXML\r\n', '')
doc = xmltodict.parse(clear_xml)
lines = [l.get('#text', '').replace('_x000D__x000A_', '') for l in doc.get('Objs', {}).get('S', {}) if l.get('@S') == stream_name]
return '\r\n'.join(lines)
# FUTURE: determine buffer size at runtime via remote winrm config?
def _put_file_stdin_iterator(self, in_path, out_path, buffer_size=250000):
in_size = os.path.getsize(to_bytes(in_path, errors='surrogate_or_strict'))
offset = 0
with open(to_bytes(in_path, errors='surrogate_or_strict'), 'rb') as in_file:
for out_data in iter((lambda:in_file.read(buffer_size)), ''):
offset += len(out_data)
self._display.vvvvv('WINRM PUT "%s" to "%s" (offset=%d size=%d)' % (in_path, out_path, offset, len(out_data)), host=self._winrm_host)
# yes, we're double-encoding over the wire in this case- we want to ensure that the data shipped to the end PS pipeline is still b64-encoded
b64_data = base64.b64encode(out_data) + '\r\n'
# cough up the data, as well as an indicator if this is the last chunk so winrm_send knows to set the End signal
yield b64_data, (in_file.tell() == in_size)
if offset == 0: # empty file, return an empty buffer + eof to close it
yield "", True
def put_file(self, in_path, out_path):
super(Connection, self).put_file(in_path, out_path)
out_path = self._shell._unquote(out_path)
display.vvv('PUT "%s" TO "%s"' % (in_path, out_path), host=self._winrm_host)
if not os.path.exists(to_bytes(in_path, errors='surrogate_or_strict')):
raise AnsibleFileNotFound('file or module does not exist: "%s"' % in_path)
script_template = u'''
begin {{
$path = '{0}'
$DebugPreference = "Continue"
$ErrorActionPreference = "Stop"
Set-StrictMode -Version 2
$fd = [System.IO.File]::Create($path)
$sha1 = [System.Security.Cryptography.SHA1CryptoServiceProvider]::Create()
$bytes = @() #initialize for empty file case
}}
process {{
$bytes = [System.Convert]::FromBase64String($input)
$sha1.TransformBlock($bytes, 0, $bytes.Length, $bytes, 0) | Out-Null
$fd.Write($bytes, 0, $bytes.Length)
}}
end {{
$sha1.TransformFinalBlock($bytes, 0, 0) | Out-Null
$hash = [System.BitConverter]::ToString($sha1.Hash).Replace("-", "").ToLowerInvariant()
$fd.Close()
Write-Output "{{""sha1"":""$hash""}}"
}}
'''
script = script_template.format(self._shell._escape(out_path))
cmd_parts = self._shell._encode_script(script, as_list=True, strict_mode=False)
result = self._winrm_exec(cmd_parts[0], cmd_parts[1:], stdin_iterator=self._put_file_stdin_iterator(in_path, out_path))
# TODO: improve error handling
if result.status_code != 0:
raise AnsibleError(to_native(result.std_err))
put_output = json.loads(result.std_out)
remote_sha1 = put_output.get("sha1")
if not remote_sha1:
raise AnsibleError("Remote sha1 was not returned")
local_sha1 = secure_hash(in_path)
if not remote_sha1 == local_sha1:
raise AnsibleError("Remote sha1 hash {0} does not match local hash {1}".format(to_native(remote_sha1), to_native(local_sha1)))
def fetch_file(self, in_path, out_path):
super(Connection, self).fetch_file(in_path, out_path)
in_path = self._shell._unquote(in_path)
out_path = out_path.replace('\\', '/')
display.vvv('FETCH "%s" TO "%s"' % (in_path, out_path), host=self._winrm_host)
buffer_size = 2**19 # 0.5MB chunks
makedirs_safe(os.path.dirname(out_path))
out_file = None
try:
offset = 0
while True:
try:
script = '''
If (Test-Path -PathType Leaf "%(path)s")
{
$stream = [System.IO.File]::OpenRead("%(path)s");
$stream.Seek(%(offset)d, [System.IO.SeekOrigin]::Begin) | Out-Null;
$buffer = New-Object Byte[] %(buffer_size)d;
$bytesRead = $stream.Read($buffer, 0, %(buffer_size)d);
$bytes = $buffer[0..($bytesRead-1)];
[System.Convert]::ToBase64String($bytes);
$stream.Close() | Out-Null;
}
ElseIf (Test-Path -PathType Container "%(path)s")
{
Write-Host "[DIR]";
}
Else
{
Write-Error "%(path)s does not exist";
Exit 1;
}
''' % dict(buffer_size=buffer_size, path=self._shell._escape(in_path), offset=offset)
display.vvvvv('WINRM FETCH "%s" to "%s" (offset=%d)' % (in_path, out_path, offset), host=self._winrm_host)
cmd_parts = self._shell._encode_script(script, as_list=True)
result = self._winrm_exec(cmd_parts[0], cmd_parts[1:])
if result.status_code != 0:
raise IOError(to_native(result.std_err))
if result.std_out.strip() == '[DIR]':
data = None
else:
data = base64.b64decode(result.std_out.strip())
if data is None:
makedirs_safe(out_path)
break
else:
if not out_file:
# If out_path is a directory and we're expecting a file, bail out now.
if os.path.isdir(to_bytes(out_path, errors='surrogate_or_strict')):
break
out_file = open(to_bytes(out_path, errors='surrogate_or_strict'), 'wb')
out_file.write(data)
if len(data) < buffer_size:
break
offset += len(data)
except Exception:
traceback.print_exc()
raise AnsibleError('failed to transfer file to "%s"' % out_path)
finally:
if out_file:
out_file.close()
def close(self):
if self.protocol and self.shell_id:
display.vvvvv('WINRM CLOSE SHELL: %s' % self.shell_id, host=self._winrm_host)
self.protocol.close_shell(self.shell_id)
self.shell_id = None
self.protocol = None
self._connected = False