Exemple #1
0
class Connection(ConnectionBase):

    transport = 'psrp'
    module_implementation_preferences = ('.ps1', '.exe', '')
    allow_executable = False
    has_pipelining = True
    allow_extras = True

    def __init__(self, *args, **kwargs):
        self.always_pipeline_modules = True
        self.has_native_async = True

        self.runspace = None
        self.host = None

        self._shell_type = 'powershell'
        super(Connection, self).__init__(*args, **kwargs)

        if not C.DEFAULT_DEBUG:
            logging.getLogger('pypsrp').setLevel(logging.WARNING)
            logging.getLogger('requests_credssp').setLevel(logging.INFO)
            logging.getLogger('urllib3').setLevel(logging.INFO)

    def _connect(self):
        if not HAS_PYPSRP:
            raise AnsibleError("pypsrp or dependencies are not installed: %s"
                               % to_native(PYPSRP_IMP_ERR))
        super(Connection, self)._connect()
        self._build_kwargs()
        display.vvv("ESTABLISH PSRP CONNECTION FOR USER: %s ON PORT %s TO %s" %
                    (self._psrp_user, self._psrp_port, self._psrp_host),
                    host=self._psrp_host)

        if not self.runspace:
            connection = WSMan(**self._psrp_conn_kwargs)

            # create our psuedo host to capture the exit code and host output
            host_ui = PSHostUserInterface()
            self.host = PSHost(None, None, False, "Ansible PSRP Host", None,
                               host_ui, None)

            self.runspace = RunspacePool(
                connection, host=self.host,
                configuration_name=self._psrp_configuration_name
            )
            display.vvvvv(
                "PSRP OPEN RUNSPACE: auth=%s configuration=%s endpoint=%s" %
                (self._psrp_auth, self._psrp_configuration_name,
                 connection.transport.endpoint), host=self._psrp_host
            )
            try:
                self.runspace.open()
            except AuthenticationError as e:
                raise AnsibleConnectionFailure("failed to authenticate with "
                                               "the server: %s" % to_native(e))
            except WinRMError as e:
                raise AnsibleConnectionFailure(
                    "psrp connection failure during runspace open: %s"
                    % to_native(e)
                )
            except (ConnectionError, ConnectTimeout) as e:
                raise AnsibleConnectionFailure(
                    "Failed to connect to the host via PSRP: %s"
                    % to_native(e)
                )

            self._connected = True
        return self

    def reset(self):
        display.vvvvv("PSRP: Reset Connection", host=self._psrp_host)
        self.runspace = 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)

        if cmd.startswith(" ".join(_common_args) + " -EncodedCommand"):
            # This is a PowerShell script encoded by the shell plugin, we will
            # decode the script and execute it in the runspace instead of
            # starting a new interpreter to save on time
            b_command = base64.b64decode(cmd.split(" ")[-1])
            script = to_text(b_command, 'utf-16-le')
            in_data = to_text(in_data, errors="surrogate_or_strict", nonstring="passthru")

            if in_data and in_data.startswith(u"#!"):
                # ANSIBALLZ wrapper, we need to get the interpreter and execute
                # that as the script - note this won't work as basic.py relies
                # on packages not available on Windows, once fixed we can enable
                # this path
                interpreter = to_native(in_data.splitlines()[0][2:])
                # script = "$input | &'%s' -" % interpreter
                # in_data = to_text(in_data)
                raise AnsibleError("cannot run the interpreter '%s' on the psrp "
                                   "connection plugin" % interpreter)

            # call build_module_command to get the bootstrap wrapper text
            bootstrap_wrapper = self._shell.build_module_command('', '', '')
            if bootstrap_wrapper == cmd:
                # Do not display to the user each invocation of the bootstrap wrapper
                display.vvv("PSRP: EXEC (via pipeline wrapper)")
            else:
                display.vvv("PSRP: EXEC %s" % script, host=self._psrp_host)
        else:
            # In other cases we want to execute the cmd as the script. We add on the 'exit $LASTEXITCODE' to ensure the
            # rc is propagated back to the connection plugin.
            script = to_text(u"%s\nexit $LASTEXITCODE" % cmd)
            display.vvv(u"PSRP: EXEC %s" % script, host=self._psrp_host)

        rc, stdout, stderr = self._exec_psrp_script(script, in_data)
        return rc, stdout, stderr

    def put_file(self, in_path, out_path):
        super(Connection, self).put_file(in_path, out_path)
        display.vvv("PUT %s TO %s" % (in_path, out_path), host=self._psrp_host)

        out_path = self._shell._unquote(out_path)
        script = u'''begin {
    $ErrorActionPreference = "Stop"

    $path = '%s'
    $fd = [System.IO.File]::Create($path)
    $algo = [System.Security.Cryptography.SHA1CryptoServiceProvider]::Create()
    $bytes = @()
} process {
    $bytes = [System.Convert]::FromBase64String($input)
    $algo.TransformBlock($bytes, 0, $bytes.Length, $bytes, 0) > $null
    $fd.Write($bytes, 0, $bytes.Length)
} end {
    $fd.Close()
    $algo.TransformFinalBlock($bytes, 0, 0) > $null
    $hash = [System.BitConverter]::ToString($algo.Hash)
    $hash = $hash.Replace("-", "").ToLowerInvariant()

    Write-Output -InputObject "{`"sha1`":`"$hash`"}"
}''' % self._shell._escape(out_path)

        cmd_parts = self._shell._encode_script(script, as_list=True,
                                               strict_mode=False,
                                               preserve_rc=False)
        b_in_path = to_bytes(in_path, errors='surrogate_or_strict')
        if not os.path.exists(b_in_path):
            raise AnsibleFileNotFound('file or module does not exist: "%s"'
                                      % to_native(in_path))

        in_size = os.path.getsize(b_in_path)
        buffer_size = int(self.runspace.connection.max_payload_size / 4 * 3)

        # copying files is faster when using the raw WinRM shell and not PSRP
        # we will create a WinRS shell just for this process
        # TODO: speed this up as there is overhead creating a shell for this
        with WinRS(self.runspace.connection, codepage=65001) as shell:
            process = Process(shell, cmd_parts[0], cmd_parts[1:])
            process.begin_invoke()

            offset = 0
            with open(b_in_path, 'rb') as src_file:
                for data in iter((lambda: src_file.read(buffer_size)), b""):
                    offset += len(data)
                    display.vvvvv("PSRP PUT %s to %s (offset=%d, size=%d" %
                                  (in_path, out_path, offset, len(data)),
                                  host=self._psrp_host)
                    b64_data = base64.b64encode(data) + b"\r\n"
                    process.send(b64_data, end=(src_file.tell() == in_size))

                # the file was empty, return empty buffer
                if offset == 0:
                    process.send(b"", end=True)

            process.end_invoke()
            process.signal(SignalCode.CTRL_C)

        if process.rc != 0:
            raise AnsibleError(to_native(process.stderr))

        put_output = json.loads(process.stdout)
        remote_sha1 = put_output.get("sha1")

        if not remote_sha1:
            raise AnsibleError("Remote sha1 was not returned, stdout: '%s', "
                               "stderr: '%s'" % (to_native(process.stdout),
                                                 to_native(process.stderr)))

        local_sha1 = secure_hash(in_path)
        if not remote_sha1 == local_sha1:
            raise AnsibleError("Remote sha1 hash %s does not match local hash "
                               "%s" % (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)
        display.vvv("FETCH %s TO %s" % (in_path, out_path),
                    host=self._psrp_host)

        in_path = self._shell._unquote(in_path)
        out_path = out_path.replace('\\', '/')

        # because we are dealing with base64 data we need to get the max size
        # of the bytes that the base64 size would equal
        max_b64_size = int(self.runspace.connection.max_payload_size -
                           (self.runspace.connection.max_payload_size / 4 * 3))
        buffer_size = max_b64_size - (max_b64_size % 1024)

        # setup the file stream with read only mode
        setup_script = '''$ErrorActionPreference = "Stop"
$path = '%s'

if (Test-Path -Path $path -PathType Leaf) {
    $fs = New-Object -TypeName System.IO.FileStream -ArgumentList @(
        $path,
        [System.IO.FileMode]::Open,
        [System.IO.FileAccess]::Read,
        [System.IO.FileShare]::Read
    )
    $buffer_size = %d
} elseif (Test-Path -Path $path -PathType Container) {
    Write-Output -InputObject "[DIR]"
} else {
    Write-Error -Message "$path does not exist"
    $host.SetShouldExit(1)
}''' % (self._shell._escape(in_path), buffer_size)

        # read the file stream at the offset and return the b64 string
        read_script = '''$ErrorActionPreference = "Stop"
$fs.Seek(%d, [System.IO.SeekOrigin]::Begin) > $null
$buffer = New-Object -TypeName byte[] -ArgumentList $buffer_size
$bytes_read = $fs.Read($buffer, 0, $buffer_size)

if ($bytes_read -gt 0) {
    $bytes = $buffer[0..($bytes_read - 1)]
    Write-Output -InputObject ([System.Convert]::ToBase64String($bytes))
}'''

        # need to run the setup script outside of the local scope so the
        # file stream stays active between fetch operations
        rc, stdout, stderr = self._exec_psrp_script(setup_script,
                                                    use_local_scope=False,
                                                    force_stop=True)
        if rc != 0:
            raise AnsibleError("failed to setup file stream for fetch '%s': %s"
                               % (out_path, to_native(stderr)))
        elif stdout.strip() == '[DIR]':
            # to be consistent with other connection plugins, we assume the caller has created the target dir
            return

        b_out_path = to_bytes(out_path, errors='surrogate_or_strict')
        # to be consistent with other connection plugins, we assume the caller has created the target dir
        offset = 0
        with open(b_out_path, 'wb') as out_file:
            while True:
                display.vvvvv("PSRP FETCH %s to %s (offset=%d" %
                              (in_path, out_path, offset), host=self._psrp_host)
                rc, stdout, stderr = self._exec_psrp_script(read_script % offset, force_stop=True)
                if rc != 0:
                    raise AnsibleError("failed to transfer file to '%s': %s"
                                       % (out_path, to_native(stderr)))

                data = base64.b64decode(stdout.strip())
                out_file.write(data)
                if len(data) < buffer_size:
                    break
                offset += len(data)

            rc, stdout, stderr = self._exec_psrp_script("$fs.Close()", force_stop=True)
            if rc != 0:
                display.warning("failed to close remote file stream of file "
                                "'%s': %s" % (in_path, to_native(stderr)))

    def close(self):
        if self.runspace and self.runspace.state == RunspacePoolState.OPENED:
            display.vvvvv("PSRP CLOSE RUNSPACE: %s" % (self.runspace.id),
                          host=self._psrp_host)
            self.runspace.close()
        self.runspace = None
        self._connected = False

    def _build_kwargs(self):
        self._become_method = self._play_context.become_method
        self._become_user = self._play_context.become_user
        self._become_pass = self._play_context.become_pass

        self._psrp_host = self.get_option('remote_addr')
        self._psrp_user = self.get_option('remote_user')
        self._psrp_pass = self._play_context.password

        protocol = self.get_option('protocol')
        port = self.get_option('port')
        if protocol is None and port is None:
            protocol = 'https'
            port = 5986
        elif protocol is None:
            protocol = 'https' if int(port) != 5985 else 'http'
        elif port is None:
            port = 5986 if protocol == 'https' else 5985

        self._psrp_protocol = protocol
        self._psrp_port = int(port)

        self._psrp_path = self.get_option('path')
        self._psrp_auth = self.get_option('auth')
        # cert validation can either be a bool or a path to the cert
        cert_validation = self.get_option('cert_validation')
        cert_trust_path = self.get_option('ca_cert')
        if cert_validation == 'ignore':
            self._psrp_cert_validation = False
        elif cert_trust_path is not None:
            self._psrp_cert_validation = cert_trust_path
        else:
            self._psrp_cert_validation = True

        self._psrp_connection_timeout = self.get_option('connection_timeout')  # Can be None
        self._psrp_read_timeout = self.get_option('read_timeout')  # Can be None
        self._psrp_message_encryption = self.get_option('message_encryption')
        self._psrp_proxy = self.get_option('proxy')
        self._psrp_ignore_proxy = boolean(self.get_option('ignore_proxy'))
        self._psrp_operation_timeout = int(self.get_option('operation_timeout'))
        self._psrp_max_envelope_size = int(self.get_option('max_envelope_size'))
        self._psrp_configuration_name = self.get_option('configuration_name')
        self._psrp_reconnection_retries = int(self.get_option('reconnection_retries'))
        self._psrp_reconnection_backoff = float(self.get_option('reconnection_backoff'))

        self._psrp_certificate_key_pem = self.get_option('certificate_key_pem')
        self._psrp_certificate_pem = self.get_option('certificate_pem')
        self._psrp_credssp_auth_mechanism = self.get_option('credssp_auth_mechanism')
        self._psrp_credssp_disable_tlsv1_2 = self.get_option('credssp_disable_tlsv1_2')
        self._psrp_credssp_minimum_version = self.get_option('credssp_minimum_version')
        self._psrp_negotiate_send_cbt = self.get_option('negotiate_send_cbt')
        self._psrp_negotiate_delegate = self.get_option('negotiate_delegate')
        self._psrp_negotiate_hostname_override = self.get_option('negotiate_hostname_override')
        self._psrp_negotiate_service = self.get_option('negotiate_service')

        supported_args = []
        for auth_kwarg in AUTH_KWARGS.values():
            supported_args.extend(auth_kwarg)
        extra_args = set([v.replace('ansible_psrp_', '') for v in
                          self.get_option('_extras')])
        unsupported_args = extra_args.difference(supported_args)

        for arg in unsupported_args:
            display.warning("ansible_psrp_%s is unsupported by the current "
                            "psrp version installed" % arg)

        self._psrp_conn_kwargs = dict(
            server=self._psrp_host, port=self._psrp_port,
            username=self._psrp_user, password=self._psrp_pass,
            ssl=self._psrp_protocol == 'https', path=self._psrp_path,
            auth=self._psrp_auth, cert_validation=self._psrp_cert_validation,
            connection_timeout=self._psrp_connection_timeout,
            encryption=self._psrp_message_encryption, proxy=self._psrp_proxy,
            no_proxy=self._psrp_ignore_proxy,
            max_envelope_size=self._psrp_max_envelope_size,
            operation_timeout=self._psrp_operation_timeout,
            certificate_key_pem=self._psrp_certificate_key_pem,
            certificate_pem=self._psrp_certificate_pem,
            credssp_auth_mechanism=self._psrp_credssp_auth_mechanism,
            credssp_disable_tlsv1_2=self._psrp_credssp_disable_tlsv1_2,
            credssp_minimum_version=self._psrp_credssp_minimum_version,
            negotiate_send_cbt=self._psrp_negotiate_send_cbt,
            negotiate_delegate=self._psrp_negotiate_delegate,
            negotiate_hostname_override=self._psrp_negotiate_hostname_override,
            negotiate_service=self._psrp_negotiate_service,
        )

        # Check if PSRP version supports newer read_timeout argument (needs pypsrp 0.3.0+)
        if hasattr(pypsrp, 'FEATURES') and 'wsman_read_timeout' in pypsrp.FEATURES:
            self._psrp_conn_kwargs['read_timeout'] = self._psrp_read_timeout
        elif self._psrp_read_timeout is not None:
            display.warning("ansible_psrp_read_timeout is unsupported by the current psrp version installed, "
                            "using ansible_psrp_connection_timeout value for read_timeout instead.")

        # Check if PSRP version supports newer reconnection_retries argument (needs pypsrp 0.3.0+)
        if hasattr(pypsrp, 'FEATURES') and 'wsman_reconnections' in pypsrp.FEATURES:
            self._psrp_conn_kwargs['reconnection_retries'] = self._psrp_reconnection_retries
            self._psrp_conn_kwargs['reconnection_backoff'] = self._psrp_reconnection_backoff
        else:
            if self._psrp_reconnection_retries is not None:
                display.warning("ansible_psrp_reconnection_retries is unsupported by the current psrp version installed.")
            if self._psrp_reconnection_backoff is not None:
                display.warning("ansible_psrp_reconnection_backoff is unsupported by the current psrp version installed.")

        # add in the extra args that were set
        for arg in extra_args.intersection(supported_args):
            option = self.get_option('_extras')['ansible_psrp_%s' % arg]
            self._psrp_conn_kwargs[arg] = option

    def _exec_psrp_script(self, script, input_data=None, use_local_scope=True, force_stop=False):
        ps = PowerShell(self.runspace)
        ps.add_script(script, use_local_scope=use_local_scope)
        ps.invoke(input=input_data)

        rc, stdout, stderr = self._parse_pipeline_result(ps)

        if force_stop:
            # This is usually not needed because we close the Runspace after our exec and we skip the call to close the
            # pipeline manually to save on some time. Set to True when running multiple exec calls in the same runspace.

            # Current pypsrp versions raise an exception if the current state was not RUNNING. We manually set it so we
            # can call stop without any issues.
            ps.state = PSInvocationState.RUNNING
            ps.stop()

        return rc, stdout, stderr

    def _parse_pipeline_result(self, pipeline):
        """
        PSRP doesn't have the same concept as other protocols with its output.
        We need some extra logic to convert the pipeline streams and host
        output into the format that Ansible understands.

        :param pipeline: The finished PowerShell pipeline that invoked our
            commands
        :return: rc, stdout, stderr based on the pipeline output
        """
        # we try and get the rc from our host implementation, this is set if
        # exit or $host.SetShouldExit() is called in our pipeline, if not we
        # set to 0 if the pipeline had not errors and 1 if it did
        rc = self.host.rc or (1 if pipeline.had_errors else 0)

        # TODO: figure out a better way of merging this with the host output
        stdout_list = []
        for output in pipeline.output:
            # Not all pipeline outputs are a string or contain a __str__ value,
            # we will create our own output based on the properties of the
            # complex object if that is the case.
            if isinstance(output, GenericComplexObject) and output.to_string is None:
                obj_lines = output.property_sets
                for key, value in output.adapted_properties.items():
                    obj_lines.append(u"%s: %s" % (key, value))
                for key, value in output.extended_properties.items():
                    obj_lines.append(u"%s: %s" % (key, value))
                output_msg = u"\n".join(obj_lines)
            else:
                output_msg = to_text(output, nonstring='simplerepr')

            stdout_list.append(output_msg)

        if len(self.host.ui.stdout) > 0:
            stdout_list += self.host.ui.stdout
        stdout = u"\r\n".join(stdout_list)

        stderr_list = []
        for error in pipeline.streams.error:
            # the error record is not as fully fleshed out like we usually get
            # in PS, we will manually create it here
            command_name = "%s : " % error.command_name if error.command_name else ''
            position = "%s\r\n" % error.invocation_position_message if error.invocation_position_message else ''
            error_msg = "%s%s\r\n%s" \
                        "    + CategoryInfo          : %s\r\n" \
                        "    + FullyQualifiedErrorId : %s" \
                        % (command_name, str(error), position,
                           error.message, error.fq_error)
            stacktrace = error.script_stacktrace
            if self._play_context.verbosity >= 3 and stacktrace is not None:
                error_msg += "\r\nStackTrace:\r\n%s" % stacktrace
            stderr_list.append(error_msg)

        if len(self.host.ui.stderr) > 0:
            stderr_list += self.host.ui.stderr
        stderr = u"\r\n".join([to_text(o) for o in stderr_list])

        display.vvvvv("PSRP RC: %d" % rc, host=self._psrp_host)
        display.vvvvv("PSRP STDOUT: %s" % stdout, host=self._psrp_host)
        display.vvvvv("PSRP STDERR: %s" % stderr, host=self._psrp_host)

        # reset the host back output back to defaults, needed if running
        # multiple pipelines on the same RunspacePool
        self.host.rc = 0
        self.host.ui.stdout = []
        self.host.ui.stderr = []

        return rc, to_bytes(stdout, encoding='utf-8'), to_bytes(stderr, encoding='utf-8')
Exemple #2
0
class Connection(ConnectionBase):

    transport = 'psrp'
    module_implementation_preferences = ('.ps1', '.exe', '')
    allow_executable = False
    has_pipelining = True
    allow_extras = True

    def __init__(self, *args, **kwargs):
        self.always_pipeline_modules = True
        self.has_native_async = True

        self.runspace = None
        self.host = None
        self._last_pipeline = False

        self._shell_type = 'powershell'
        super(Connection, self).__init__(*args, **kwargs)

        if not C.DEFAULT_DEBUG:
            logging.getLogger('pypsrp').setLevel(logging.WARNING)
            logging.getLogger('requests_credssp').setLevel(logging.INFO)
            logging.getLogger('urllib3').setLevel(logging.INFO)

    def _connect(self):
        if not HAS_PYPSRP:
            raise AnsibleError("pypsrp or dependencies are not installed: %s" %
                               to_native(PYPSRP_IMP_ERR))
        super(Connection, self)._connect()
        self._build_kwargs()
        display.vvv("ESTABLISH PSRP CONNECTION FOR USER: %s ON PORT %s TO %s" %
                    (self._psrp_user, self._psrp_port, self._psrp_host),
                    host=self._psrp_host)

        if not self.runspace:
            connection = WSMan(**self._psrp_conn_kwargs)

            # create our pseudo host to capture the exit code and host output
            host_ui = PSHostUserInterface()
            self.host = PSHost(None, None, False, "Ansible PSRP Host", None,
                               host_ui, None)

            self.runspace = RunspacePool(
                connection,
                host=self.host,
                configuration_name=self._psrp_configuration_name)
            display.vvvvv(
                "PSRP OPEN RUNSPACE: auth=%s configuration=%s endpoint=%s" %
                (self._psrp_auth, self._psrp_configuration_name,
                 connection.transport.endpoint),
                host=self._psrp_host)
            try:
                self.runspace.open()
            except AuthenticationError as e:
                raise AnsibleConnectionFailure("failed to authenticate with "
                                               "the server: %s" % to_native(e))
            except WinRMError as e:
                raise AnsibleConnectionFailure(
                    "psrp connection failure during runspace open: %s" %
                    to_native(e))
            except (ConnectionError, ConnectTimeout) as e:
                raise AnsibleConnectionFailure(
                    "Failed to connect to the host via PSRP: %s" %
                    to_native(e))

            self._connected = True
            self._last_pipeline = None
        return self

    def reset(self):
        if not self._connected:
            self.runspace = None
            return

        # Try out best to ensure the runspace is closed to free up server side resources
        try:
            self.close()
        except Exception as e:
            # There's a good chance the connection was already closed so just log the error and move on
            display.debug("PSRP reset - failed to closed runspace: %s" %
                          to_text(e))

        display.vvvvv("PSRP: Reset Connection", host=self._psrp_host)
        self.runspace = 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)

        if cmd.startswith(" ".join(_common_args) + " -EncodedCommand"):
            # This is a PowerShell script encoded by the shell plugin, we will
            # decode the script and execute it in the runspace instead of
            # starting a new interpreter to save on time
            b_command = base64.b64decode(cmd.split(" ")[-1])
            script = to_text(b_command, 'utf-16-le')
            in_data = to_text(in_data,
                              errors="surrogate_or_strict",
                              nonstring="passthru")

            if in_data and in_data.startswith(u"#!"):
                # ANSIBALLZ wrapper, we need to get the interpreter and execute
                # that as the script - note this won't work as basic.py relies
                # on packages not available on Windows, once fixed we can enable
                # this path
                interpreter = to_native(in_data.splitlines()[0][2:])
                # script = "$input | &'%s' -" % interpreter
                # in_data = to_text(in_data)
                raise AnsibleError(
                    "cannot run the interpreter '%s' on the psrp "
                    "connection plugin" % interpreter)

            # call build_module_command to get the bootstrap wrapper text
            bootstrap_wrapper = self._shell.build_module_command('', '', '')
            if bootstrap_wrapper == cmd:
                # Do not display to the user each invocation of the bootstrap wrapper
                display.vvv("PSRP: EXEC (via pipeline wrapper)")
            else:
                display.vvv("PSRP: EXEC %s" % script, host=self._psrp_host)
        else:
            # In other cases we want to execute the cmd as the script. We add on the 'exit $LASTEXITCODE' to ensure the
            # rc is propagated back to the connection plugin.
            script = to_text(u"%s\nexit $LASTEXITCODE" % cmd)
            display.vvv(u"PSRP: EXEC %s" % script, host=self._psrp_host)

        rc, stdout, stderr = self._exec_psrp_script(script, in_data)
        return rc, stdout, stderr

    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._psrp_host)

        copy_script = '''begin {
    $ErrorActionPreference = "Stop"
    $WarningPreference = "Continue"
    $path = $MyInvocation.UnboundArguments[0]
    $fd = [System.IO.File]::Create($path)
    $algo = [System.Security.Cryptography.SHA1CryptoServiceProvider]::Create()
    $bytes = @()

    $bindingFlags = [System.Reflection.BindingFlags]'NonPublic, Instance'
    Function Get-Property {
        <#
        .SYNOPSIS
        Gets the private/internal property specified of the object passed in.
        #>
        Param (
            [Parameter(Mandatory=$true, ValueFromPipeline=$true)]
            [System.Object]
            $Object,

            [Parameter(Mandatory=$true, Position=1)]
            [System.String]
            $Name
        )

        $Object.GetType().GetProperty($Name, $bindingFlags).GetValue($Object, $null)
    }

    Function Set-Property {
        <#
        .SYNOPSIS
        Sets the private/internal property specified on the object passed in.
        #>
        Param (
            [Parameter(Mandatory=$true, ValueFromPipeline=$true)]
            [System.Object]
            $Object,

            [Parameter(Mandatory=$true, Position=1)]
            [System.String]
            $Name,

            [Parameter(Mandatory=$true, Position=2)]
            [AllowNull()]
            [System.Object]
            $Value
        )

        $Object.GetType().GetProperty($Name, $bindingFlags).SetValue($Object, $Value, $null)
    }

    Function Get-Field {
        <#
        .SYNOPSIS
        Gets the private/internal field specified of the object passed in.
        #>
        Param (
            [Parameter(Mandatory=$true, ValueFromPipeline=$true)]
            [System.Object]
            $Object,

            [Parameter(Mandatory=$true, Position=1)]
            [System.String]
            $Name
        )

        $Object.GetType().GetField($Name, $bindingFlags).GetValue($Object)
    }

    # MaximumAllowedMemory is required to be set to so we can send input data that exceeds the limit on a PS
    # Runspace. We use reflection to access/set this property as it is not accessible publicly. This is not ideal
    # but works on all PowerShell versions I've tested with. We originally used WinRS to send the raw bytes to the
    # host but this falls flat if someone is using a custom PS configuration name so this is a workaround. This
    # isn't required for smaller files so if it fails we ignore the error and hope it wasn't needed.
    # https://github.com/PowerShell/PowerShell/blob/c8e72d1e664b1ee04a14f226adf655cced24e5f0/src/System.Management.Automation/engine/serialization.cs#L325
    try {
        $Host | Get-Property 'ExternalHost' | `
            Get-Field '_transportManager' | `
            Get-Property 'Fragmentor' | `
            Get-Property 'DeserializationContext' | `
            Set-Property 'MaximumAllowedMemory' $null
    } catch {}
}
process {
    $bytes = [System.Convert]::FromBase64String($input)
    $algo.TransformBlock($bytes, 0, $bytes.Length, $bytes, 0) > $null
    $fd.Write($bytes, 0, $bytes.Length)
}
end {
    $fd.Close()

    $algo.TransformFinalBlock($bytes, 0, 0) > $null
    $hash = [System.BitConverter]::ToString($algo.Hash).Replace('-', '').ToLowerInvariant()
    Write-Output -InputObject "{`"sha1`":`"$hash`"}"
}
'''

        # Get the buffer size of each fragment to send, subtract 82 for the fragment, message, and other header info
        # fields that PSRP adds. Adjust to size of the base64 encoded bytes length.
        buffer_size = int(
            (self.runspace.connection.max_payload_size - 82) / 4 * 3)

        sha1_hash = sha1()

        b_in_path = to_bytes(in_path, errors='surrogate_or_strict')
        if not os.path.exists(b_in_path):
            raise AnsibleFileNotFound('file or module does not exist: "%s"' %
                                      to_native(in_path))

        def read_gen():
            offset = 0

            with open(b_in_path, 'rb') as src_fd:
                for b_data in iter((lambda: src_fd.read(buffer_size)), b""):
                    data_len = len(b_data)
                    offset += data_len
                    sha1_hash.update(b_data)

                    # PSRP technically supports sending raw bytes but that method requires a larger CLIXML message.
                    # Sending base64 is still more efficient here.
                    display.vvvvv("PSRP PUT %s to %s (offset=%d, size=%d" %
                                  (in_path, out_path, offset, data_len),
                                  host=self._psrp_host)
                    b64_data = base64.b64encode(b_data)
                    yield [to_text(b64_data)]

                if offset == 0:  # empty file
                    yield [""]

        rc, stdout, stderr = self._exec_psrp_script(copy_script,
                                                    read_gen(),
                                                    arguments=[out_path])

        if rc != 0:
            raise AnsibleError(to_native(stderr))

        put_output = json.loads(to_text(stdout))
        local_sha1 = sha1_hash.hexdigest()
        remote_sha1 = put_output.get("sha1")

        if not remote_sha1:
            raise AnsibleError(
                "Remote sha1 was not returned, stdout: '%s', stderr: '%s'" %
                (to_native(stdout), to_native(stderr)))

        if not remote_sha1 == local_sha1:
            raise AnsibleError(
                "Remote sha1 hash %s does not match local hash %s" %
                (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)
        display.vvv("FETCH %s TO %s" % (in_path, out_path),
                    host=self._psrp_host)

        in_path = self._shell._unquote(in_path)
        out_path = out_path.replace('\\', '/')

        # because we are dealing with base64 data we need to get the max size
        # of the bytes that the base64 size would equal
        max_b64_size = int(self.runspace.connection.max_payload_size -
                           (self.runspace.connection.max_payload_size / 4 * 3))
        buffer_size = max_b64_size - (max_b64_size % 1024)

        # setup the file stream with read only mode
        setup_script = '''$ErrorActionPreference = "Stop"
$path = '%s'

if (Test-Path -Path $path -PathType Leaf) {
    $fs = New-Object -TypeName System.IO.FileStream -ArgumentList @(
        $path,
        [System.IO.FileMode]::Open,
        [System.IO.FileAccess]::Read,
        [System.IO.FileShare]::Read
    )
    $buffer_size = %d
} elseif (Test-Path -Path $path -PathType Container) {
    Write-Output -InputObject "[DIR]"
} else {
    Write-Error -Message "$path does not exist"
    $host.SetShouldExit(1)
}''' % (self._shell._escape(in_path), buffer_size)

        # read the file stream at the offset and return the b64 string
        read_script = '''$ErrorActionPreference = "Stop"
$fs.Seek(%d, [System.IO.SeekOrigin]::Begin) > $null
$buffer = New-Object -TypeName byte[] -ArgumentList $buffer_size
$bytes_read = $fs.Read($buffer, 0, $buffer_size)

if ($bytes_read -gt 0) {
    $bytes = $buffer[0..($bytes_read - 1)]
    Write-Output -InputObject ([System.Convert]::ToBase64String($bytes))
}'''

        # need to run the setup script outside of the local scope so the
        # file stream stays active between fetch operations
        rc, stdout, stderr = self._exec_psrp_script(setup_script,
                                                    use_local_scope=False)
        if rc != 0:
            raise AnsibleError(
                "failed to setup file stream for fetch '%s': %s" %
                (out_path, to_native(stderr)))
        elif stdout.strip() == '[DIR]':
            # to be consistent with other connection plugins, we assume the caller has created the target dir
            return

        b_out_path = to_bytes(out_path, errors='surrogate_or_strict')
        # to be consistent with other connection plugins, we assume the caller has created the target dir
        offset = 0
        with open(b_out_path, 'wb') as out_file:
            while True:
                display.vvvvv("PSRP FETCH %s to %s (offset=%d" %
                              (in_path, out_path, offset),
                              host=self._psrp_host)
                rc, stdout, stderr = self._exec_psrp_script(read_script %
                                                            offset)
                if rc != 0:
                    raise AnsibleError("failed to transfer file to '%s': %s" %
                                       (out_path, to_native(stderr)))

                data = base64.b64decode(stdout.strip())
                out_file.write(data)
                if len(data) < buffer_size:
                    break
                offset += len(data)

            rc, stdout, stderr = self._exec_psrp_script("$fs.Close()")
            if rc != 0:
                display.warning("failed to close remote file stream of file "
                                "'%s': %s" % (in_path, to_native(stderr)))

    def close(self):
        if self.runspace and self.runspace.state == RunspacePoolState.OPENED:
            display.vvvvv("PSRP CLOSE RUNSPACE: %s" % (self.runspace.id),
                          host=self._psrp_host)
            self.runspace.close()
        self.runspace = None
        self._connected = False
        self._last_pipeline = None

    def _build_kwargs(self):
        self._psrp_host = self.get_option('remote_addr')
        self._psrp_user = self.get_option('remote_user')
        self._psrp_pass = self.get_option('remote_password')

        protocol = self.get_option('protocol')
        port = self.get_option('port')
        if protocol is None and port is None:
            protocol = 'https'
            port = 5986
        elif protocol is None:
            protocol = 'https' if int(port) != 5985 else 'http'
        elif port is None:
            port = 5986 if protocol == 'https' else 5985

        self._psrp_protocol = protocol
        self._psrp_port = int(port)

        self._psrp_path = self.get_option('path')
        self._psrp_auth = self.get_option('auth')
        # cert validation can either be a bool or a path to the cert
        cert_validation = self.get_option('cert_validation')
        cert_trust_path = self.get_option('ca_cert')
        if cert_validation == 'ignore':
            self._psrp_cert_validation = False
        elif cert_trust_path is not None:
            self._psrp_cert_validation = cert_trust_path
        else:
            self._psrp_cert_validation = True

        self._psrp_connection_timeout = self.get_option(
            'connection_timeout')  # Can be None
        self._psrp_read_timeout = self.get_option(
            'read_timeout')  # Can be None
        self._psrp_message_encryption = self.get_option('message_encryption')
        self._psrp_proxy = self.get_option('proxy')
        self._psrp_ignore_proxy = boolean(self.get_option('ignore_proxy'))
        self._psrp_operation_timeout = int(
            self.get_option('operation_timeout'))
        self._psrp_max_envelope_size = int(
            self.get_option('max_envelope_size'))
        self._psrp_configuration_name = self.get_option('configuration_name')
        self._psrp_reconnection_retries = int(
            self.get_option('reconnection_retries'))
        self._psrp_reconnection_backoff = float(
            self.get_option('reconnection_backoff'))

        self._psrp_certificate_key_pem = self.get_option('certificate_key_pem')
        self._psrp_certificate_pem = self.get_option('certificate_pem')
        self._psrp_credssp_auth_mechanism = self.get_option(
            'credssp_auth_mechanism')
        self._psrp_credssp_disable_tlsv1_2 = self.get_option(
            'credssp_disable_tlsv1_2')
        self._psrp_credssp_minimum_version = self.get_option(
            'credssp_minimum_version')
        self._psrp_negotiate_send_cbt = self.get_option('negotiate_send_cbt')
        self._psrp_negotiate_delegate = self.get_option('negotiate_delegate')
        self._psrp_negotiate_hostname_override = self.get_option(
            'negotiate_hostname_override')
        self._psrp_negotiate_service = self.get_option('negotiate_service')

        supported_args = []
        for auth_kwarg in AUTH_KWARGS.values():
            supported_args.extend(auth_kwarg)
        extra_args = {
            v.replace('ansible_psrp_', '')
            for v in self.get_option('_extras')
        }
        unsupported_args = extra_args.difference(supported_args)

        for arg in unsupported_args:
            display.warning("ansible_psrp_%s is unsupported by the current "
                            "psrp version installed" % arg)

        self._psrp_conn_kwargs = dict(
            server=self._psrp_host,
            port=self._psrp_port,
            username=self._psrp_user,
            password=self._psrp_pass,
            ssl=self._psrp_protocol == 'https',
            path=self._psrp_path,
            auth=self._psrp_auth,
            cert_validation=self._psrp_cert_validation,
            connection_timeout=self._psrp_connection_timeout,
            encryption=self._psrp_message_encryption,
            proxy=self._psrp_proxy,
            no_proxy=self._psrp_ignore_proxy,
            max_envelope_size=self._psrp_max_envelope_size,
            operation_timeout=self._psrp_operation_timeout,
            certificate_key_pem=self._psrp_certificate_key_pem,
            certificate_pem=self._psrp_certificate_pem,
            credssp_auth_mechanism=self._psrp_credssp_auth_mechanism,
            credssp_disable_tlsv1_2=self._psrp_credssp_disable_tlsv1_2,
            credssp_minimum_version=self._psrp_credssp_minimum_version,
            negotiate_send_cbt=self._psrp_negotiate_send_cbt,
            negotiate_delegate=self._psrp_negotiate_delegate,
            negotiate_hostname_override=self._psrp_negotiate_hostname_override,
            negotiate_service=self._psrp_negotiate_service,
        )

        # Check if PSRP version supports newer read_timeout argument (needs pypsrp 0.3.0+)
        if hasattr(pypsrp,
                   'FEATURES') and 'wsman_read_timeout' in pypsrp.FEATURES:
            self._psrp_conn_kwargs['read_timeout'] = self._psrp_read_timeout
        elif self._psrp_read_timeout is not None:
            display.warning(
                "ansible_psrp_read_timeout is unsupported by the current psrp version installed, "
                "using ansible_psrp_connection_timeout value for read_timeout instead."
            )

        # Check if PSRP version supports newer reconnection_retries argument (needs pypsrp 0.3.0+)
        if hasattr(pypsrp,
                   'FEATURES') and 'wsman_reconnections' in pypsrp.FEATURES:
            self._psrp_conn_kwargs[
                'reconnection_retries'] = self._psrp_reconnection_retries
            self._psrp_conn_kwargs[
                'reconnection_backoff'] = self._psrp_reconnection_backoff
        else:
            if self._psrp_reconnection_retries is not None:
                display.warning(
                    "ansible_psrp_reconnection_retries is unsupported by the current psrp version installed."
                )
            if self._psrp_reconnection_backoff is not None:
                display.warning(
                    "ansible_psrp_reconnection_backoff is unsupported by the current psrp version installed."
                )

        # add in the extra args that were set
        for arg in extra_args.intersection(supported_args):
            option = self.get_option('_extras')['ansible_psrp_%s' % arg]
            self._psrp_conn_kwargs[arg] = option

    def _exec_psrp_script(self,
                          script,
                          input_data=None,
                          use_local_scope=True,
                          arguments=None):
        # Check if there's a command on the current pipeline that still needs to be closed.
        if self._last_pipeline:
            # Current pypsrp versions raise an exception if the current state was not RUNNING. We manually set it so we
            # can call stop without any issues.
            self._last_pipeline.state = PSInvocationState.RUNNING
            self._last_pipeline.stop()
            self._last_pipeline = None

        ps = PowerShell(self.runspace)
        ps.add_script(script, use_local_scope=use_local_scope)
        if arguments:
            for arg in arguments:
                ps.add_argument(arg)

        ps.invoke(input=input_data)

        rc, stdout, stderr = self._parse_pipeline_result(ps)

        # We should really call .stop() on all pipelines that are run to decrement the concurrent command counter on
        # PSSession but that involves another round trip and is done when the runspace is closed. We instead store the
        # last pipeline which is closed if another command is run on the runspace.
        self._last_pipeline = ps

        return rc, stdout, stderr

    def _parse_pipeline_result(self, pipeline):
        """
        PSRP doesn't have the same concept as other protocols with its output.
        We need some extra logic to convert the pipeline streams and host
        output into the format that Ansible understands.

        :param pipeline: The finished PowerShell pipeline that invoked our
            commands
        :return: rc, stdout, stderr based on the pipeline output
        """
        # we try and get the rc from our host implementation, this is set if
        # exit or $host.SetShouldExit() is called in our pipeline, if not we
        # set to 0 if the pipeline had not errors and 1 if it did
        rc = self.host.rc or (1 if pipeline.had_errors else 0)

        # TODO: figure out a better way of merging this with the host output
        stdout_list = []
        for output in pipeline.output:
            # Not all pipeline outputs are a string or contain a __str__ value,
            # we will create our own output based on the properties of the
            # complex object if that is the case.
            if isinstance(output,
                          GenericComplexObject) and output.to_string is None:
                obj_lines = output.property_sets
                for key, value in output.adapted_properties.items():
                    obj_lines.append(u"%s: %s" % (key, value))
                for key, value in output.extended_properties.items():
                    obj_lines.append(u"%s: %s" % (key, value))
                output_msg = u"\n".join(obj_lines)
            else:
                output_msg = to_text(output, nonstring='simplerepr')

            stdout_list.append(output_msg)

        if len(self.host.ui.stdout) > 0:
            stdout_list += self.host.ui.stdout
        stdout = u"\r\n".join(stdout_list)

        stderr_list = []
        for error in pipeline.streams.error:
            # the error record is not as fully fleshed out like we usually get
            # in PS, we will manually create it here
            command_name = "%s : " % error.command_name if error.command_name else ''
            position = "%s\r\n" % error.invocation_position_message if error.invocation_position_message else ''
            error_msg = "%s%s\r\n%s" \
                        "    + CategoryInfo          : %s\r\n" \
                        "    + FullyQualifiedErrorId : %s" \
                        % (command_name, str(error), position,
                           error.message, error.fq_error)
            stacktrace = error.script_stacktrace
            if self._play_context.verbosity >= 3 and stacktrace is not None:
                error_msg += "\r\nStackTrace:\r\n%s" % stacktrace
            stderr_list.append(error_msg)

        if len(self.host.ui.stderr) > 0:
            stderr_list += self.host.ui.stderr
        stderr = u"\r\n".join([to_text(o) for o in stderr_list])

        display.vvvvv("PSRP RC: %d" % rc, host=self._psrp_host)
        display.vvvvv("PSRP STDOUT: %s" % stdout, host=self._psrp_host)
        display.vvvvv("PSRP STDERR: %s" % stderr, host=self._psrp_host)

        # reset the host back output back to defaults, needed if running
        # multiple pipelines on the same RunspacePool
        self.host.rc = 0
        self.host.ui.stdout = []
        self.host.ui.stderr = []

        return rc, to_bytes(stdout,
                            encoding='utf-8'), to_bytes(stderr,
                                                        encoding='utf-8')