/mandos/trunk

import logging

# Show warnings by default

if not sys.warnoptions:

    import warnings

    warnings.simplefilter("default")

 

log = logging.getLogger(sys.argv[0])

logging.basicConfig(level="INFO", # Show info level messages

                    format="%(message)s") # Show basic log messages

 

logging.captureWarnings(True)   # Show warnings via the logging system

 

    >>> rfc3339_duration_to_delta("P60M")

    datetime.timedelta(1680)

    >>> # Can not be empty:

    >>> rfc3339_duration_to_delta("")

    Traceback (most recent call last):

    ...

    ValueError: Invalid RFC 3339 duration: u''

    >>> # Must start with "P":

    >>> rfc3339_duration_to_delta("1D")

    Traceback (most recent call last):

    ...

    ValueError: Invalid RFC 3339 duration: u'1D'

    >>> # Must use correct order

    >>> rfc3339_duration_to_delta("PT1S2M")

    Traceback (most recent call last):

    ...

    ValueError: Invalid RFC 3339 duration: u'PT1S2M'

    >>> # Time needs time marker

    >>> rfc3339_duration_to_delta("P1H2S")

    Traceback (most recent call last):

    ...

    ValueError: Invalid RFC 3339 duration: u'P1H2S'

    >>> # Weeks can not be combined with anything else

    >>> rfc3339_duration_to_delta("P1D2W")

    Traceback (most recent call last):

    ...

    ValueError: Invalid RFC 3339 duration: u'P1D2W'

    >>> rfc3339_duration_to_delta("P2W2H")

    Traceback (most recent call last):

    ...

    ValueError: Invalid RFC 3339 duration: u'P2W2H'

    """Parse a string and return a datetime.timedelta"""

    except ValueError as e:

        log.warning("%s - Parsing as pre-1.6.1 interval instead",

                    ' '.join(e.args))

    return parse_pre_1_6_1_interval(interval)

 

 

def parse_pre_1_6_1_interval(interval):

    """Parse an interval string as documented by Mandos before 1.6.1,

    and return a datetime.timedelta

 

    >>> parse_pre_1_6_1_interval('7d')

    datetime.timedelta(7)

    >>> parse_pre_1_6_1_interval('60s')

    datetime.timedelta(0, 60)

    >>> parse_pre_1_6_1_interval('60m')

    datetime.timedelta(0, 3600)

    >>> parse_pre_1_6_1_interval('24h')

    datetime.timedelta(1)

    >>> parse_pre_1_6_1_interval('1w')

    datetime.timedelta(7)

    >>> parse_pre_1_6_1_interval('5m 30s')

    datetime.timedelta(0, 330)

    >>> parse_pre_1_6_1_interval('')

    datetime.timedelta(0)

    >>> # Ignore unknown characters, allow any order and repetitions

    >>> parse_pre_1_6_1_interval('2dxy7zz11y3m5m')

    datetime.timedelta(2, 480, 18000)

 

    """

class TableOfClients(object):

    tableheaders = {

        "Name": "Name",

        "Enabled": "Enabled",

        "Timeout": "Timeout",

        "LastCheckedOK": "Last Successful Check",

        "LastApprovalRequest": "Last Approval Request",

        "Created": "Created",

        "Interval": "Interval",

        "Host": "Host",

        "Fingerprint": "Fingerprint",

        "KeyID": "Key ID",

        "CheckerRunning": "Check Is Running",

        "LastEnabled": "Last Enabled",

        "ApprovalPending": "Approval Is Pending",

        "ApprovedByDefault": "Approved By Default",

        "ApprovalDelay": "Approval Delay",

        "ApprovalDuration": "Approval Duration",

        "Checker": "Checker",

        "ExtendedTimeout": "Extended Timeout",

        "Expires": "Expires",

        "LastCheckerStatus": "Last Checker Status",

    }

 

    def __init__(self, clients, keywords, tableheaders=None):

        self.clients = clients

        self.keywords = keywords

        if tableheaders is not None:

            self.tableheaders = tableheaders

 

    def __str__(self):

        return "\n".join(self.rows())

 

    if sys.version_info.major == 2:

        __unicode__ = __str__

        def __str__(self):

            return str(self).encode(locale.getpreferredencoding())

 

    def rows(self):

        format_string = self.row_formatting_string()

        rows = [self.header_line(format_string)]

        rows.extend(self.client_line(client, format_string)

                    for client in self.clients)

        return rows

 

    def row_formatting_string(self):

        "Format string used to format table rows"

        return " ".join("{{{key}:{width}}}".format(

            width=max(len(self.tableheaders[key]),

                      *(len(self.string_from_client(client, key))

                        for client in self.clients)),

            key=key)

                        for key in self.keywords)

 

    def string_from_client(self, client, key):

        return self.valuetostring(client[key], key)

 

    @staticmethod

        if isinstance(value, dbus.Boolean):

    def header_line(self, format_string):

        return format_string.format(**self.tableheaders)

 

    def client_line(self, client, format_string):

        return format_string.format(

            **{key: self.string_from_client(client, key)

               for key in self.keywords})

 

 

## Classes for commands.

 

# Abstract classes first

class Command(object):

    """Abstract class for commands"""

    def run(self, mandos, clients):

        """Normal commands should implement run_on_one_client(), but

        commands which want to operate on all clients at the same time

        can override this run() method instead."""

        self.mandos = mandos

        for client in clients:

            self.run_on_one_client(client)

 

class PrintCmd(Command):

    """Abstract class for commands printing client details"""

    all_keywords = ("Name", "Enabled", "Timeout", "LastCheckedOK",

                    "Created", "Interval", "Host", "KeyID",

                    "Fingerprint", "CheckerRunning", "LastEnabled",

                    "ApprovalPending", "ApprovedByDefault",

                    "LastApprovalRequest", "ApprovalDelay",

                    "ApprovalDuration", "Checker", "ExtendedTimeout",

                    "Expires", "LastCheckerStatus")

    def run(self, mandos, clients):

        print(self.output(clients))

 

class PropertyCmd(Command):

    """Abstract class for Actions for setting one client property"""

    def run_on_one_client(self, client):

        """Set the Client's D-Bus property"""

        client.Set(client_interface, self.property, self.value_to_set,

                   dbus_interface=dbus.PROPERTIES_IFACE)

 

class ValueArgumentMixIn(object):

    """Mixin class for commands taking a value as argument"""

    def __init__(self, value):

        self.value_to_set = value

 

class MillisecondsValueArgumentMixIn(ValueArgumentMixIn):

    """Mixin class for commands taking a value argument as

    milliseconds."""

    @property

    def value_to_set(self):

        return self._vts

    @value_to_set.setter

    def value_to_set(self, value):

        """When setting, convert value to a datetime.timedelta"""

        self._vts = string_to_delta(value).total_seconds() * 1000

 

# Actual (non-abstract) command classes

 

class PrintTableCmd(PrintCmd):

    def __init__(self, verbose=False):

        self.verbose = verbose

    def output(self, clients):

        if self.verbose:

            keywords = self.all_keywords

        else:

            keywords = ("Name", "Enabled", "Timeout", "LastCheckedOK")

        return str(TableOfClients(clients.values(), keywords))

 

class DumpJSONCmd(PrintCmd):

    def output(self, clients):

        data = {client["Name"]:

                {key: self.dbus_boolean_to_bool(client[key])

                 for key in self.all_keywords}

                for client in clients.values()}

        return json.dumps(data, indent=4, separators=(',', ': '))

    @staticmethod

    def dbus_boolean_to_bool(value):

        if isinstance(value, dbus.Boolean):

            value = bool(value)

        return value

 

class IsEnabledCmd(Command):

    def run_on_one_client(self, client):

        if self.is_enabled(client):

            sys.exit(0)

        sys.exit(1)

    def is_enabled(self, client):

        return client.Get(client_interface, "Enabled",

                          dbus_interface=dbus.PROPERTIES_IFACE)

 

class RemoveCmd(Command):

    def run_on_one_client(self, client):

        self.mandos.RemoveClient(client.__dbus_object_path__)

 

class ApproveCmd(Command):

    def run_on_one_client(self, client):

        client.Approve(dbus.Boolean(True),

                       dbus_interface=client_interface)

 

class DenyCmd(Command):

    def run_on_one_client(self, client):

        client.Approve(dbus.Boolean(False),

                       dbus_interface=client_interface)

 

class EnableCmd(PropertyCmd):

    property = "Enabled"

    value_to_set = dbus.Boolean(True)

 

class DisableCmd(PropertyCmd):

    property = "Enabled"

    value_to_set = dbus.Boolean(False)

 

class BumpTimeoutCmd(PropertyCmd):

    property = "LastCheckedOK"

    value_to_set = ""

 

class StartCheckerCmd(PropertyCmd):

    property = "CheckerRunning"

    value_to_set = dbus.Boolean(True)

 

class StopCheckerCmd(PropertyCmd):

    property = "CheckerRunning"

    value_to_set = dbus.Boolean(False)

 

class ApproveByDefaultCmd(PropertyCmd):

    property = "ApprovedByDefault"

    value_to_set = dbus.Boolean(True)

 

class DenyByDefaultCmd(PropertyCmd):

    property = "ApprovedByDefault"

    value_to_set = dbus.Boolean(False)

 

class SetCheckerCmd(PropertyCmd, ValueArgumentMixIn):

    property = "Checker"

 

class SetHostCmd(PropertyCmd, ValueArgumentMixIn):

    property = "Host"

 

class SetSecretCmd(PropertyCmd, ValueArgumentMixIn):

    property = "Secret"

 

class SetTimeoutCmd(PropertyCmd, MillisecondsValueArgumentMixIn):

    property = "Timeout"

 

class SetExtendedTimeoutCmd(PropertyCmd,

                            MillisecondsValueArgumentMixIn):

    property = "ExtendedTimeout"

 

class SetIntervalCmd(PropertyCmd, MillisecondsValueArgumentMixIn):

    property = "Interval"

 

class SetApprovalDelayCmd(PropertyCmd,

                          MillisecondsValueArgumentMixIn):

    property = "ApprovalDelay"

 

class SetApprovalDurationCmd(PropertyCmd,

                             MillisecondsValueArgumentMixIn):

    property = "ApprovalDuration"

    enable_disable = parser.add_mutually_exclusive_group()

    enable_disable.add_argument("-e", "--enable", action="store_true",

                                help="Enable client")

    enable_disable.add_argument("-d", "--disable",

                                action="store_true",

                                help="disable client")

    start_stop_checker = parser.add_mutually_exclusive_group()

    start_stop_checker.add_argument("--start-checker",

                                    action="store_true",

                                    help="Start checker for client")

    start_stop_checker.add_argument("--stop-checker",

                                    action="store_true",

                                    help="Stop checker for client")

    approve_deny_default = parser.add_mutually_exclusive_group()

    approve_deny_default.add_argument(

        "--approve-by-default", action="store_true",

        default=None, dest="approved_by_default",

        help="Set client to be approved by default")

    approve_deny_default.add_argument(

        "--deny-by-default", action="store_false",

        dest="approved_by_default",

        help="Set client to be denied by default")

    approve_deny = parser.add_mutually_exclusive_group()

    approve_deny.add_argument(

        "-A", "--approve", action="store_true",

        help="Approve any current client request")

    approve_deny.add_argument("-D", "--deny", action="store_true",

                              help="Deny any current client request")

    if options.is_enabled and len(options.client) > 1:

            parser.error("--is-enabled requires exactly one client")

        log.critical("Could not connect to Mandos server")

    commands = []

 

    if options.dump_json:

        commands.append(DumpJSONCmd())

 

    if options.enable:

        commands.append(EnableCmd())

 

    if options.disable:

        commands.append(DisableCmd())

 

    if options.bump_timeout:

        commands.append(BumpTimeoutCmd(options.bump_timeout))

 

    if options.start_checker:

        commands.append(StartCheckerCmd())

 

    if options.stop_checker:

        commands.append(StopCheckerCmd())

 

    if options.is_enabled:

        commands.append(IsEnabledCmd())

 

    if options.remove:

        commands.append(RemoveCmd())

 

    if options.checker is not None:

        commands.append(SetCheckerCmd())

 

    if options.timeout is not None:

        commands.append(SetTimeoutCmd(options.timeout))

 

    if options.extended_timeout:

        commands.append(

            SetExtendedTimeoutCmd(options.extended_timeout))

 

    if options.interval is not None:

        command.append(SetIntervalCmd(options.interval))

 

    if options.approved_by_default is not None:

        if options.approved_by_default:

            command.append(ApproveByDefaultCmd())

        else:

            command.append(DenyByDefaultCmd())

 

    if options.approval_delay is not None:

        command.append(SetApprovalDelayCmd(options.approval_delay))

 

    if options.approval_duration is not None:

        command.append(

            SetApprovalDurationCmd(options.approval_duration))

 

    if options.host is not None:

        command.append(SetHostCmd(options.host))

 

    if options.secret is not None:

        command.append(SetSecretCmd(options.secret))

 

    if options.approve:

        commands.append(ApproveCmd())

 

    if options.deny:

        commands.append(DenyCmd())

 

    # If no command option has been given, show table of clients,

    # optionally verbosely

    if not commands:

        commands.append(PrintTableCmd(verbose=options.verbose))

 

    # Filter out log message from dbus module

    dbus_logger = logging.getLogger("dbus.proxies")

    class NullFilter(logging.Filter):

        def filter(self, record):

            return False

    dbus_filter = NullFilter()

    dbus_logger.addFilter(dbus_filter)

            # restore dbus logger

            dbus_logger.removeFilter(dbus_filter)

        log.critical("Failed to access Mandos server through D-Bus:"

                     "\n%s", e)

                log.critical("Client not found on server: %r", name)

    # Run all commands on clients

    for command in commands:

        command.run(mandos_serv, clients)

class Test_string_to_delta(unittest.TestCase):

    def test_handles_basic_rfc3339(self):

        self.assertEqual(string_to_delta("PT2H"),

                         datetime.timedelta(0, 7200))

    def test_falls_back_to_pre_1_6_1_with_warning(self):

        # assertLogs only exists in Python 3.4

        if hasattr(self, "assertLogs"):

            with self.assertLogs(log, logging.WARNING):

                value = string_to_delta("2h")

        else:

            class WarningFilter(logging.Filter):

                """Don't show, but record the presence of, warnings"""

                def filter(self, record):

                    is_warning = record.levelno >= logging.WARNING

                    self.found = is_warning or getattr(self, "found",

                                                       False)

                    return not is_warning

            warning_filter = WarningFilter()

            log.addFilter(warning_filter)

            try:

                value = string_to_delta("2h")

            finally:

                log.removeFilter(warning_filter)

            self.assertTrue(getattr(warning_filter, "found", False))

        self.assertEqual(value, datetime.timedelta(0, 7200))

 

class Test_TableOfClients(unittest.TestCase):

    def setUp(self):

        self.tableheaders = {

            "Attr1": "X",

            "AttrTwo": "Yy",

            "AttrThree": "Zzz",

            "Bool": "A D-BUS Boolean",

            "NonDbusBoolean": "A Non-D-BUS Boolean",

            "Integer": "An Integer",

            "Timeout": "Timedelta 1",

            "Interval": "Timedelta 2",

            "ApprovalDelay": "Timedelta 3",

            "ApprovalDuration": "Timedelta 4",

            "ExtendedTimeout": "Timedelta 5",

            "String": "A String",

        }

        self.keywords = ["Attr1", "AttrTwo"]

        self.clients = [

            {

                "Attr1": "x1",

                "AttrTwo": "y1",

                "AttrThree": "z1",

                "Bool": dbus.Boolean(False),

                "NonDbusBoolean": False,

                "Integer": 0,

                "Timeout": 0,

                "Interval": 1000,

                "ApprovalDelay": 2000,

                "ApprovalDuration": 3000,

                "ExtendedTimeout": 4000,

                "String": "",

            },

            {

                "Attr1": "x2",

                "AttrTwo": "y2",

                "AttrThree": "z2",

                "Bool": dbus.Boolean(True),

                "NonDbusBoolean": True,

                "Integer": 1,

                "Timeout": 93785000,

                "Interval": 93786000,

                "ApprovalDelay": 93787000,

                "ApprovalDuration": 93788000,

                "ExtendedTimeout": 93789000,

                "String": "A huge string which will not fit," * 10,

            },

        ]

    def test_short_header(self):

        text = str(TableOfClients(self.clients, self.keywords,

                                  self.tableheaders))

        expected_text = """

X  Yy

x1 y1

x2 y2

"""[1:-1]

        self.assertEqual(text, expected_text)

    def test_booleans(self):

        keywords = ["Bool", "NonDbusBoolean"]

        text = str(TableOfClients(self.clients, keywords,

                                  self.tableheaders))

        expected_text = """

A D-BUS Boolean A Non-D-BUS Boolean

No              False              

Yes             True               

"""[1:-1]

        self.assertEqual(text, expected_text)

    def test_milliseconds_detection(self):

        keywords = ["Integer", "Timeout", "Interval", "ApprovalDelay",

                    "ApprovalDuration", "ExtendedTimeout"]

        text = str(TableOfClients(self.clients, keywords,

                                  self.tableheaders))

        expected_text = """

An Integer Timedelta 1 Timedelta 2 Timedelta 3 Timedelta 4 Timedelta 5

0          00:00:00    00:00:01    00:00:02    00:00:03    00:00:04   

1          1T02:03:05  1T02:03:06  1T02:03:07  1T02:03:08  1T02:03:09 

"""[1:-1]

        self.assertEqual(text, expected_text)

    def test_empty_and_long_string_values(self):

        keywords = ["String"]

        text = str(TableOfClients(self.clients, keywords,

                                  self.tableheaders))

        expected_text = """

A String                                                                                                                                                                                                                                                                                                                                  

                                                                                                                                                                                                                                                                                                                                          

A huge string which will not fit,A huge string which will not fit,A huge string which will not fit,A huge string which will not fit,A huge string which will not fit,A huge string which will not fit,A huge string which will not fit,A huge string which will not fit,A huge string which will not fit,A huge string which will not fit,

"""[1:-1]

        self.assertEqual(text, expected_text)