2
# -*- mode: python; coding: utf-8; after-save-hook: (lambda () (let ((command (if (and (boundp 'tramp-file-name-structure) (string-match (car tramp-file-name-structure) (buffer-file-name))) (tramp-file-name-localname (tramp-dissect-file-name (buffer-file-name))) (buffer-file-name)))) (if (= (shell-command (format "%s --check" (shell-quote-argument command)) "*Test*") 0) (let ((w (get-buffer-window "*Test*"))) (if w (delete-window w)) (kill-buffer "*Test*")) (display-buffer "*Test*")))); -*-
4
# Mandos Monitor - Control and monitor the Mandos server
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# Copyright © 2008-2019 Teddy Hogeborn
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# Copyright © 2008-2019 Björn Påhlsson
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# This file is part of Mandos.
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# Mandos is free software: you can redistribute it and/or modify it
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# 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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# Mandos is distributed in the hope that it will be useful, but
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# 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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# You should have received a copy of the GNU General Public License
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# along with Mandos. If not, see <http://www.gnu.org/licenses/>.
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# Contact the authors at <mandos@recompile.se>.
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from __future__ import (division, absolute_import, print_function,
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from future_builtins import *
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# Show warnings by default
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if not sys.warnoptions:
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warnings.simplefilter("default")
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log = logging.getLogger(sys.argv[0])
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logging.basicConfig(level="INFO", # Show info level messages
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format="%(message)s") # Show basic log messages
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logging.captureWarnings(True) # Show warnings via the logging system
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if sys.version_info.major == 2:
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locale.setlocale(locale.LC_ALL, "")
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"LastCheckedOK": "Last Successful Check",
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"LastApprovalRequest": "Last Approval Request",
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"Interval": "Interval",
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"Fingerprint": "Fingerprint",
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"CheckerRunning": "Check Is Running",
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"LastEnabled": "Last Enabled",
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"ApprovalPending": "Approval Is Pending",
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"ApprovedByDefault": "Approved By Default",
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"ApprovalDelay": "Approval Delay",
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"ApprovalDuration": "Approval Duration",
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"ExtendedTimeout": "Extended Timeout",
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"LastCheckerStatus": "Last Checker Status",
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defaultkeywords = ("Name", "Enabled", "Timeout", "LastCheckedOK")
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domain = "se.recompile"
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busname = domain + ".Mandos"
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server_interface = domain + ".Mandos"
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client_interface = domain + ".Mandos.Client"
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dbus.OBJECT_MANAGER_IFACE
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except AttributeError:
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dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
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def milliseconds_to_string(ms):
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td = datetime.timedelta(0, 0, 0, ms)
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return ("{days}{hours:02}:{minutes:02}:{seconds:02}"
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.format(days="{}T".format(td.days) if td.days else "",
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hours=td.seconds // 3600,
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minutes=(td.seconds % 3600) // 60,
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seconds=td.seconds % 60))
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def rfc3339_duration_to_delta(duration):
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"""Parse an RFC 3339 "duration" and return a datetime.timedelta
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>>> rfc3339_duration_to_delta("P7D")
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datetime.timedelta(7)
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>>> rfc3339_duration_to_delta("PT60S")
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datetime.timedelta(0, 60)
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>>> rfc3339_duration_to_delta("PT60M")
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datetime.timedelta(0, 3600)
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>>> rfc3339_duration_to_delta("P60M")
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datetime.timedelta(1680)
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>>> rfc3339_duration_to_delta("PT24H")
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datetime.timedelta(1)
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>>> rfc3339_duration_to_delta("P1W")
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datetime.timedelta(7)
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>>> rfc3339_duration_to_delta("PT5M30S")
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datetime.timedelta(0, 330)
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>>> rfc3339_duration_to_delta("P1DT3M20S")
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datetime.timedelta(1, 200)
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>>> # Can not be empty:
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>>> rfc3339_duration_to_delta("")
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Traceback (most recent call last):
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ValueError: Invalid RFC 3339 duration: u''
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>>> # Must start with "P":
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>>> rfc3339_duration_to_delta("1D")
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Traceback (most recent call last):
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ValueError: Invalid RFC 3339 duration: u'1D'
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>>> # Must use correct order
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>>> rfc3339_duration_to_delta("PT1S2M")
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Traceback (most recent call last):
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ValueError: Invalid RFC 3339 duration: u'PT1S2M'
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>>> # Time needs time marker
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>>> rfc3339_duration_to_delta("P1H2S")
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Traceback (most recent call last):
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ValueError: Invalid RFC 3339 duration: u'P1H2S'
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>>> # Weeks can not be combined with anything else
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>>> rfc3339_duration_to_delta("P1D2W")
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Traceback (most recent call last):
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ValueError: Invalid RFC 3339 duration: u'P1D2W'
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>>> rfc3339_duration_to_delta("P2W2H")
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Traceback (most recent call last):
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ValueError: Invalid RFC 3339 duration: u'P2W2H'
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# Parsing an RFC 3339 duration with regular expressions is not
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# possible - there would have to be multiple places for the same
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# values, like seconds. The current code, while more esoteric, is
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# cleaner without depending on a parsing library. If Python had a
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# built-in library for parsing we would use it, but we'd like to
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# avoid excessive use of external libraries.
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# New type for defining tokens, syntax, and semantics all-in-one
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Token = collections.namedtuple("Token", (
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"regexp", # To match token; if "value" is not None, must have
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# a "group" containing digits
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"value", # datetime.timedelta or None
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"followers")) # Tokens valid after this token
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# RFC 3339 "duration" tokens, syntax, and semantics; taken from
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# the "duration" ABNF definition in RFC 3339, Appendix A.
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token_end = Token(re.compile(r"$"), None, frozenset())
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token_second = Token(re.compile(r"(\d+)S"),
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datetime.timedelta(seconds=1),
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frozenset((token_end, )))
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token_minute = Token(re.compile(r"(\d+)M"),
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datetime.timedelta(minutes=1),
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frozenset((token_second, token_end)))
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token_hour = Token(re.compile(r"(\d+)H"),
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datetime.timedelta(hours=1),
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frozenset((token_minute, token_end)))
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token_time = Token(re.compile(r"T"),
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frozenset((token_hour, token_minute,
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token_day = Token(re.compile(r"(\d+)D"),
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datetime.timedelta(days=1),
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frozenset((token_time, token_end)))
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token_month = Token(re.compile(r"(\d+)M"),
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datetime.timedelta(weeks=4),
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frozenset((token_day, token_end)))
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token_year = Token(re.compile(r"(\d+)Y"),
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datetime.timedelta(weeks=52),
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frozenset((token_month, token_end)))
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token_week = Token(re.compile(r"(\d+)W"),
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datetime.timedelta(weeks=1),
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frozenset((token_end, )))
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token_duration = Token(re.compile(r"P"), None,
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frozenset((token_year, token_month,
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token_day, token_time,
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# Define starting values:
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value = datetime.timedelta()
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# Following valid tokens
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followers = frozenset((token_duration, ))
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# String left to parse
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# Loop until end token is found
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while found_token is not token_end:
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# Search for any currently valid tokens
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for token in followers:
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match = token.regexp.match(s)
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if match is not None:
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if token.value is not None:
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# Value found, parse digits
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factor = int(match.group(1), 10)
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# Add to value so far
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value += factor * token.value
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# Strip token from string
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s = token.regexp.sub("", s, 1)
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# Set valid next tokens
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followers = found_token.followers
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# No currently valid tokens were found
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raise ValueError("Invalid RFC 3339 duration: {!r}"
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def string_to_delta(interval):
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"""Parse a string and return a datetime.timedelta
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return rfc3339_duration_to_delta(interval)
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except ValueError as e:
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log.warning("%s - Parsing as pre-1.6.1 interval instead",
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return parse_pre_1_6_1_interval(interval)
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def parse_pre_1_6_1_interval(interval):
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"""Parse an interval string as documented by Mandos before 1.6.1, and
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return a datetime.timedelta
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>>> parse_pre_1_6_1_interval('7d')
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datetime.timedelta(7)
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>>> parse_pre_1_6_1_interval('60s')
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datetime.timedelta(0, 60)
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>>> parse_pre_1_6_1_interval('60m')
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datetime.timedelta(0, 3600)
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>>> parse_pre_1_6_1_interval('24h')
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datetime.timedelta(1)
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>>> parse_pre_1_6_1_interval('1w')
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datetime.timedelta(7)
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>>> parse_pre_1_6_1_interval('5m 30s')
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datetime.timedelta(0, 330)
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>>> parse_pre_1_6_1_interval('')
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datetime.timedelta(0)
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>>> # Ignore unknown characters, allow any order and repetitions
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>>> parse_pre_1_6_1_interval('2dxy7zz11y3m5m')
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datetime.timedelta(2, 480, 18000)
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value = datetime.timedelta(0)
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regexp = re.compile(r"(\d+)([dsmhw]?)")
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for num, suffix in regexp.findall(interval):
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value += datetime.timedelta(int(num))
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value += datetime.timedelta(0, int(num))
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value += datetime.timedelta(0, 0, 0, 0, int(num))
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value += datetime.timedelta(0, 0, 0, 0, 0, int(num))
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value += datetime.timedelta(0, 0, 0, 0, 0, 0, int(num))
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value += datetime.timedelta(0, 0, 0, int(num))
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def print_clients(clients, keywords):
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print('\n'.join(TableOfClients(clients, keywords).rows()))
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class TableOfClients(object):
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def __init__(self, clients, keywords):
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self.clients = clients
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self.keywords = keywords
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def valuetostring(value, keyword):
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if isinstance(value, dbus.Boolean):
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return "Yes" if value else "No"
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if keyword in ("Timeout", "Interval", "ApprovalDelay",
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"ApprovalDuration", "ExtendedTimeout"):
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return milliseconds_to_string(value)
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# Create format string to format table rows
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format_string = " ".join("{{{key}:{width}}}".format(
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width=max(len(tablewords[key]),
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max(len(self.valuetostring(client[key], key))
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for client in self.clients)),
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for key in self.keywords)
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# Start with header line
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rows = [format_string.format(**tablewords)]
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for client in self.clients:
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rows.append(format_string
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.format(**{key: self.valuetostring(client[key], key)
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for key in self.keywords}))
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def has_actions(options):
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return any((options.enable,
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options.bump_timeout,
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options.start_checker,
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options.stop_checker,
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options.checker is not None,
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options.timeout is not None,
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options.extended_timeout is not None,
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options.interval is not None,
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options.approved_by_default is not None,
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options.approval_delay is not None,
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options.approval_duration is not None,
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options.host is not None,
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options.secret is not None,
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parser = argparse.ArgumentParser()
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parser.add_argument("--version", action="version",
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version="%(prog)s {}".format(version),
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help="show version number and exit")
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parser.add_argument("-a", "--all", action="store_true",
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help="Select all clients")
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parser.add_argument("-v", "--verbose", action="store_true",
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help="Print all fields")
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parser.add_argument("-j", "--dump-json", action="store_true",
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help="Dump client data in JSON format")
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parser.add_argument("-e", "--enable", action="store_true",
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help="Enable client")
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parser.add_argument("-d", "--disable", action="store_true",
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help="disable client")
364
parser.add_argument("-b", "--bump-timeout", action="store_true",
365
help="Bump timeout for client")
366
parser.add_argument("--start-checker", action="store_true",
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help="Start checker for client")
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parser.add_argument("--stop-checker", action="store_true",
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help="Stop checker for client")
370
parser.add_argument("-V", "--is-enabled", action="store_true",
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help="Check if client is enabled")
372
parser.add_argument("-r", "--remove", action="store_true",
373
help="Remove client")
374
parser.add_argument("-c", "--checker",
375
help="Set checker command for client")
376
parser.add_argument("-t", "--timeout",
377
help="Set timeout for client")
378
parser.add_argument("--extended-timeout",
379
help="Set extended timeout for client")
380
parser.add_argument("-i", "--interval",
381
help="Set checker interval for client")
382
parser.add_argument("--approve-by-default", action="store_true",
383
default=None, dest="approved_by_default",
384
help="Set client to be approved by default")
385
parser.add_argument("--deny-by-default", action="store_false",
386
dest="approved_by_default",
387
help="Set client to be denied by default")
388
parser.add_argument("--approval-delay",
389
help="Set delay before client approve/deny")
390
parser.add_argument("--approval-duration",
391
help="Set duration of one client approval")
392
parser.add_argument("-H", "--host", help="Set host for client")
393
parser.add_argument("-s", "--secret",
394
type=argparse.FileType(mode="rb"),
395
help="Set password blob (file) for client")
396
parser.add_argument("-A", "--approve", action="store_true",
397
help="Approve any current client request")
398
parser.add_argument("-D", "--deny", action="store_true",
399
help="Deny any current client request")
400
parser.add_argument("--check", action="store_true",
401
help="Run self-test")
402
parser.add_argument("client", nargs="*", help="Client name")
403
options = parser.parse_args()
405
if has_actions(options) and not (options.client or options.all):
406
parser.error("Options require clients names or --all.")
407
if options.verbose and has_actions(options):
408
parser.error("--verbose can only be used alone.")
409
if options.dump_json and (options.verbose
410
or has_actions(options)):
411
parser.error("--dump-json can only be used alone.")
412
if options.all and not has_actions(options):
413
parser.error("--all requires an action.")
416
bus = dbus.SystemBus()
417
mandos_dbus_objc = bus.get_object(busname, server_path)
418
except dbus.exceptions.DBusException:
419
log.critical("Could not connect to Mandos server")
422
mandos_serv = dbus.Interface(mandos_dbus_objc,
423
dbus_interface=server_interface)
424
mandos_serv_object_manager = dbus.Interface(
425
mandos_dbus_objc, dbus_interface=dbus.OBJECT_MANAGER_IFACE)
427
# block stderr since dbus library prints to stderr
428
null = os.open(os.path.devnull, os.O_RDWR)
429
stderrcopy = os.dup(sys.stderr.fileno())
430
os.dup2(null, sys.stderr.fileno())
434
mandos_clients = {path: ifs_and_props[client_interface]
435
for path, ifs_and_props in
436
mandos_serv_object_manager
437
.GetManagedObjects().items()
438
if client_interface in ifs_and_props}
441
os.dup2(stderrcopy, sys.stderr.fileno())
443
except dbus.exceptions.DBusException as e:
444
log.critical("Failed to access Mandos server through D-Bus:"
448
# Compile dict of (clients: properties) to process
451
if options.all or not options.client:
452
clients = {bus.get_object(busname, path): properties
453
for path, properties in mandos_clients.items()}
455
for name in options.client:
456
for path, client in mandos_clients.items():
457
if client["Name"] == name:
458
client_objc = bus.get_object(busname, path)
459
clients[client_objc] = client
462
log.critical("Client not found on server: %r", name)
465
if not has_actions(options) and clients:
466
if options.verbose or options.dump_json:
467
keywords = ("Name", "Enabled", "Timeout", "LastCheckedOK",
468
"Created", "Interval", "Host", "KeyID",
469
"Fingerprint", "CheckerRunning",
470
"LastEnabled", "ApprovalPending",
471
"ApprovedByDefault", "LastApprovalRequest",
472
"ApprovalDelay", "ApprovalDuration",
473
"Checker", "ExtendedTimeout", "Expires",
476
keywords = defaultkeywords
478
if options.dump_json:
479
json.dump({client["Name"]: {key:
481
if isinstance(client[key],
485
for client in clients.values()},
486
fp=sys.stdout, indent=4,
487
separators=(',', ': '))
490
print_clients(clients.values(), keywords)
492
# Process each client in the list by all selected options
493
for client in clients:
495
def set_client_prop(prop, value):
496
"""Set a Client D-Bus property"""
497
client.Set(client_interface, prop, value,
498
dbus_interface=dbus.PROPERTIES_IFACE)
500
def set_client_prop_ms(prop, value):
501
"""Set a Client D-Bus property, converted
502
from a string to milliseconds."""
503
set_client_prop(prop,
504
string_to_delta(value).total_seconds()
508
mandos_serv.RemoveClient(client.__dbus_object_path__)
510
set_client_prop("Enabled", dbus.Boolean(True))
512
set_client_prop("Enabled", dbus.Boolean(False))
513
if options.bump_timeout:
514
set_client_prop("LastCheckedOK", "")
515
if options.start_checker:
516
set_client_prop("CheckerRunning", dbus.Boolean(True))
517
if options.stop_checker:
518
set_client_prop("CheckerRunning", dbus.Boolean(False))
519
if options.is_enabled:
520
if client.Get(client_interface, "Enabled",
521
dbus_interface=dbus.PROPERTIES_IFACE):
525
if options.checker is not None:
526
set_client_prop("Checker", options.checker)
527
if options.host is not None:
528
set_client_prop("Host", options.host)
529
if options.interval is not None:
530
set_client_prop_ms("Interval", options.interval)
531
if options.approval_delay is not None:
532
set_client_prop_ms("ApprovalDelay",
533
options.approval_delay)
534
if options.approval_duration is not None:
535
set_client_prop_ms("ApprovalDuration",
536
options.approval_duration)
537
if options.timeout is not None:
538
set_client_prop_ms("Timeout", options.timeout)
539
if options.extended_timeout is not None:
540
set_client_prop_ms("ExtendedTimeout",
541
options.extended_timeout)
542
if options.secret is not None:
543
set_client_prop("Secret",
544
dbus.ByteArray(options.secret.read()))
545
if options.approved_by_default is not None:
546
set_client_prop("ApprovedByDefault",
548
.approved_by_default))
550
client.Approve(dbus.Boolean(True),
551
dbus_interface=client_interface)
553
client.Approve(dbus.Boolean(False),
554
dbus_interface=client_interface)
557
class Test_milliseconds_to_string(unittest.TestCase):
559
self.assertEqual(milliseconds_to_string(93785000),
561
def test_no_days(self):
562
self.assertEqual(milliseconds_to_string(7385000), "02:03:05")
563
def test_all_zero(self):
564
self.assertEqual(milliseconds_to_string(0), "00:00:00")
565
def test_no_fractional_seconds(self):
566
self.assertEqual(milliseconds_to_string(400), "00:00:00")
567
self.assertEqual(milliseconds_to_string(900), "00:00:00")
568
self.assertEqual(milliseconds_to_string(1900), "00:00:01")
570
class Test_string_to_delta(unittest.TestCase):
571
def test_handles_basic_rfc3339(self):
572
self.assertEqual(string_to_delta("PT2H"),
573
datetime.timedelta(0, 7200))
574
def test_falls_back_to_pre_1_6_1_with_warning(self):
575
# assertLogs only exists in Python 3.4
576
if hasattr(self, "assertLogs"):
577
with self.assertLogs(log, logging.WARNING):
578
value = string_to_delta("2h")
580
value = string_to_delta("2h")
581
self.assertEqual(value, datetime.timedelta(0, 7200))
583
class Test_TableOfClients(unittest.TestCase):
586
self.old_tablewords = tablewords
591
"Bool": "A D-BUS Boolean",
592
"NonDbusBoolean": "A Non-D-BUS Boolean",
593
"Integer": "An Integer",
594
"Timeout": "Timedelta 1",
595
"Interval": "Timedelta 2",
596
"ApprovalDelay": "Timedelta 3",
597
"ApprovalDuration": "Timedelta 4",
598
"ExtendedTimeout": "Timedelta 5",
599
"String": "A String",
601
self.keywords = ["Attr1", "AttrTwo"]
607
"Bool": dbus.Boolean(False),
608
"NonDbusBoolean": False,
612
"ApprovalDelay": 2000,
613
"ApprovalDuration": 3000,
614
"ExtendedTimeout": 4000,
621
"Bool": dbus.Boolean(True),
622
"NonDbusBoolean": True,
625
"Interval": 93786000,
626
"ApprovalDelay": 93787000,
627
"ApprovalDuration": 93788000,
628
"ExtendedTimeout": 93789000,
629
"String": "A huge string which will not fit," * 10,
634
tablewords = self.old_tablewords
635
def test_short_header(self):
636
rows = TableOfClients(self.clients, self.keywords).rows()
641
self.assertEqual(rows, expected_rows)
642
def test_booleans(self):
643
keywords = ["Bool", "NonDbusBoolean"]
644
rows = TableOfClients(self.clients, keywords).rows()
646
"A D-BUS Boolean A Non-D-BUS Boolean",
650
self.assertEqual(rows, expected_rows)
651
def test_milliseconds_detection(self):
652
keywords = ["Integer", "Timeout", "Interval", "ApprovalDelay",
653
"ApprovalDuration", "ExtendedTimeout"]
654
rows = TableOfClients(self.clients, keywords).rows()
656
An Integer Timedelta 1 Timedelta 2 Timedelta 3 Timedelta 4 Timedelta 5
657
0 00:00:00 00:00:01 00:00:02 00:00:03 00:00:04
658
1 1T02:03:05 1T02:03:06 1T02:03:07 1T02:03:08 1T02:03:09
661
self.assertEqual(rows, expected_rows)
662
def test_empty_and_long_string_values(self):
663
keywords = ["String"]
664
rows = TableOfClients(self.clients, keywords).rows()
668
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,
671
self.assertEqual(rows, expected_rows)
675
def should_only_run_tests():
676
parser = argparse.ArgumentParser(add_help=False)
677
parser.add_argument("--check", action='store_true')
678
args, unknown_args = parser.parse_known_args()
679
run_tests = args.check
681
# Remove --check argument from sys.argv
682
sys.argv[1:] = unknown_args
685
# Add all tests from doctest strings
686
def load_tests(loader, tests, none):
688
tests.addTests(doctest.DocTestSuite())
691
if __name__ == "__main__":
692
if should_only_run_tests():
693
# Call using ./tdd-python-script --check [--verbose]