278 lines
12 KiB
Python
278 lines
12 KiB
Python
# (c) 2014, Chris Church <chris@ninemoreminutes.com>
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#
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# This file is part of Ansible.
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#
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# Ansible is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Ansible is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
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from __future__ import (absolute_import, division, print_function)
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__metaclass__ = type
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import base64
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import os
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import re
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import shlex
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import traceback
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from six.moves.urllib import parse
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try:
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from winrm import Response
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from winrm.exceptions import WinRMTransportError
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from winrm.protocol import Protocol
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except ImportError:
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raise AnsibleError("winrm is not installed")
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HAVE_KERBEROS = False
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try:
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import kerberos
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HAVE_KERBEROS = True
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except ImportError:
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pass
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from ansible import constants as C
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from ansible.errors import AnsibleError, AnsibleConnectionFailure, AnsibleFileNotFound
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from ansible.plugins.connections import ConnectionBase
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from ansible.plugins import shell_loader
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class Connection(ConnectionBase):
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'''WinRM connections over HTTP/HTTPS.'''
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transport_schemes = {
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'http': [('kerberos', 'http'), ('plaintext', 'http'), ('plaintext', 'https')],
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'https': [('kerberos', 'https'), ('plaintext', 'https')],
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}
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def __init__(self, *args, **kwargs):
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self.has_pipelining = False
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self.default_suffixes = ['.ps1', '']
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self.protocol = None
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self.shell_id = None
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self.delegate = None
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self._shell = shell_loader.get('powershell')
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# TODO: Add runas support
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self.become_methods_supported=[]
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super(Connection, self).__init__(*args, **kwargs)
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@property
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def transport(self):
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''' used to identify this connection object from other classes '''
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return 'winrm'
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def _winrm_connect(self):
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'''
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Establish a WinRM connection over HTTP/HTTPS.
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'''
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port = self._connection_info.port or 5986
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self._display.vvv("ESTABLISH WINRM CONNECTION FOR USER: %s on PORT %s TO %s" % \
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(self._connection_info.remote_user, port, self._connection_info.remote_addr), host=self._connection_info.remote_addr)
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netloc = '%s:%d' % (self._connection_info.remote_addr, port)
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exc = None
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for transport, scheme in self.transport_schemes['http' if port == 5985 else 'https']:
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if transport == 'kerberos' and (not HAVE_KERBEROS or not '@' in self._connection_info.remote_user):
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continue
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if transport == 'kerberos':
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realm = self._connection_info.remote_user.split('@', 1)[1].strip() or None
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else:
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realm = None
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endpoint = parse.urlunsplit((scheme, netloc, '/wsman', '', ''))
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self._display.vvvvv('WINRM CONNECT: transport=%s endpoint=%s' % (transport, endpoint), host=self._connection_info.remote_addr)
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protocol = Protocol(
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endpoint,
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transport=transport,
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username=self._connection_info.remote_user,
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password=self._connection_info.password,
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realm=realm
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)
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try:
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protocol.send_message('')
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return protocol
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except WinRMTransportError as exc:
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err_msg = str(exc)
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if re.search(r'Operation\s+?timed\s+?out', err_msg, re.I):
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raise AnsibleError("the connection attempt timed out")
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m = re.search(r'Code\s+?(\d{3})', err_msg)
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if m:
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code = int(m.groups()[0])
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if code == 401:
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raise AnsibleError("the username/password specified for this server was incorrect")
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elif code == 411:
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return protocol
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self._display.vvvvv('WINRM CONNECTION ERROR: %s' % err_msg, host=self._connection_info.remote_addr)
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continue
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if exc:
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raise AnsibleError(str(exc))
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def _winrm_exec(self, command, args=(), from_exec=False):
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if from_exec:
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self._display.vvvvv("WINRM EXEC %r %r" % (command, args), host=self._connection_info.remote_addr)
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else:
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self._display.vvvvvv("WINRM EXEC %r %r" % (command, args), host=self._connection_info.remote_addr)
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if not self.protocol:
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self.protocol = self._winrm_connect()
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if not self.shell_id:
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self.shell_id = self.protocol.open_shell()
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command_id = None
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try:
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command_id = self.protocol.run_command(self.shell_id, command, args)
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response = Response(self.protocol.get_command_output(self.shell_id, command_id))
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if from_exec:
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self._display.vvvvv('WINRM RESULT %r' % response, host=self._connection_info.remote_addr)
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else:
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self._display.vvvvvv('WINRM RESULT %r' % response, host=self._connection_info.remote_addr)
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self._display.vvvvvv('WINRM STDOUT %s' % response.std_out, host=self._connection_info.remote_addr)
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self._display.vvvvvv('WINRM STDERR %s' % response.std_err, host=self._connection_info.remote_addr)
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return response
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finally:
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if command_id:
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self.protocol.cleanup_command(self.shell_id, command_id)
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def _connect(self):
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if not self.protocol:
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self.protocol = self._winrm_connect()
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return self
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def exec_command(self, cmd, tmp_path, executable='/bin/sh', in_data=None):
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cmd = cmd.encode('utf-8')
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cmd_parts = shlex.split(cmd, posix=False)
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if '-EncodedCommand' in cmd_parts:
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encoded_cmd = cmd_parts[cmd_parts.index('-EncodedCommand') + 1]
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decoded_cmd = base64.b64decode(encoded_cmd)
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self._display.vvv("EXEC %s" % decoded_cmd, host=self._connection_info.remote_addr)
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else:
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self._display.vvv("EXEC %s" % cmd, host=self._connection_info.remote_addr)
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# For script/raw support.
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if cmd_parts and cmd_parts[0].lower().endswith('.ps1'):
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script = self._shell._build_file_cmd(cmd_parts, quote_args=False)
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cmd_parts = self._shell._encode_script(script, as_list=True)
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try:
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result = self._winrm_exec(cmd_parts[0], cmd_parts[1:], from_exec=True)
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except Exception as e:
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traceback.print_exc()
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raise AnsibleError("failed to exec cmd %s" % cmd)
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return (result.status_code, '', result.std_out.encode('utf-8'), result.std_err.encode('utf-8'))
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def put_file(self, in_path, out_path):
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self._display.vvv("PUT %s TO %s" % (in_path, out_path), host=self._connection_info.remote_addr)
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if not os.path.exists(in_path):
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raise AnsibleFileNotFound("file or module does not exist: %s" % in_path)
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with open(in_path) as in_file:
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in_size = os.path.getsize(in_path)
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script_template = '''
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$s = [System.IO.File]::OpenWrite("%s");
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[void]$s.Seek(%d, [System.IO.SeekOrigin]::Begin);
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$b = [System.Convert]::FromBase64String("%s");
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[void]$s.Write($b, 0, $b.length);
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[void]$s.SetLength(%d);
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[void]$s.Close();
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'''
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# Determine max size of data we can pass per command.
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script = script_template % (self._shell._escape(out_path), in_size, '', in_size)
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cmd = self._shell._encode_script(script)
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# Encode script with no data, subtract its length from 8190 (max
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# windows command length), divide by 2.67 (UTF16LE base64 command
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# encoding), then by 1.35 again (data base64 encoding).
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buffer_size = int(((8190 - len(cmd)) / 2.67) / 1.35)
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for offset in xrange(0, in_size, buffer_size):
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try:
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out_data = in_file.read(buffer_size)
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if offset == 0:
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if out_data.lower().startswith('#!powershell') and not out_path.lower().endswith('.ps1'):
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out_path = out_path + '.ps1'
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b64_data = base64.b64encode(out_data)
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script = script_template % (self._shell._escape(out_path), offset, b64_data, in_size)
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self._display.vvvvv("WINRM PUT %s to %s (offset=%d size=%d)" % (in_path, out_path, offset, len(out_data)), host=self._connection_info.remote_addr)
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cmd_parts = self._shell._encode_script(script, as_list=True)
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result = self._winrm_exec(cmd_parts[0], cmd_parts[1:])
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if result.status_code != 0:
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raise IOError(result.std_err.encode('utf-8'))
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except Exception:
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traceback.print_exc()
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raise AnsibleError("failed to transfer file to %s" % out_path)
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def fetch_file(self, in_path, out_path):
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out_path = out_path.replace('\\', '/')
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self._display.vvv("FETCH %s TO %s" % (in_path, out_path), host=self._connection_info.remote_addr)
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buffer_size = 2**19 # 0.5MB chunks
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if not os.path.exists(os.path.dirname(out_path)):
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os.makedirs(os.path.dirname(out_path))
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out_file = None
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try:
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offset = 0
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while True:
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try:
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script = '''
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If (Test-Path -PathType Leaf "%(path)s")
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{
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$stream = [System.IO.File]::OpenRead("%(path)s");
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$stream.Seek(%(offset)d, [System.IO.SeekOrigin]::Begin) | Out-Null;
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$buffer = New-Object Byte[] %(buffer_size)d;
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$bytesRead = $stream.Read($buffer, 0, %(buffer_size)d);
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$bytes = $buffer[0..($bytesRead-1)];
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[System.Convert]::ToBase64String($bytes);
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$stream.Close() | Out-Null;
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}
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ElseIf (Test-Path -PathType Container "%(path)s")
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{
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Write-Host "[DIR]";
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}
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Else
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{
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Write-Error "%(path)s does not exist";
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Exit 1;
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}
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''' % dict(buffer_size=buffer_size, path=self._shell._escape(in_path), offset=offset)
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self._display.vvvvv("WINRM FETCH %s to %s (offset=%d)" % (in_path, out_path, offset), host=self._connection_info.remote_addr)
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cmd_parts = self._shell._encode_script(script, as_list=True)
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result = self._winrm_exec(cmd_parts[0], cmd_parts[1:])
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if result.status_code != 0:
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raise IOError(result.std_err.encode('utf-8'))
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if result.std_out.strip() == '[DIR]':
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data = None
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else:
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data = base64.b64decode(result.std_out.strip())
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if data is None:
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if not os.path.exists(out_path):
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os.makedirs(out_path)
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break
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else:
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if not out_file:
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# If out_path is a directory and we're expecting a file, bail out now.
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if os.path.isdir(out_path):
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break
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out_file = open(out_path, 'wb')
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out_file.write(data)
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if len(data) < buffer_size:
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break
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offset += len(data)
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except Exception:
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traceback.print_exc()
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raise AnsibleError("failed to transfer file to %s" % out_path)
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finally:
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if out_file:
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out_file.close()
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def close(self):
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if self.protocol and self.shell_id:
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self.protocol.close_shell(self.shell_id)
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self.shell_id = None
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