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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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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>>> 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,
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and 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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class TableOfClients(object):
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"Enabled": "Enabled",
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"Timeout": "Timeout",
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"LastCheckedOK": "Last Successful Check",
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"LastApprovalRequest": "Last Approval Request",
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"Created": "Created",
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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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"Checker": "Checker",
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"ExtendedTimeout": "Extended Timeout",
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"Expires": "Expires",
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"LastCheckerStatus": "Last Checker Status",
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def __init__(self, clients, keywords, tablewords=None):
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self.clients = clients
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self.keywords = keywords
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if tablewords is not None:
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self.tablewords = tablewords
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return "\n".join(self.rows())
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if sys.version_info.major == 2:
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__unicode__ = __str__
308
return str(self).encode(locale.getpreferredencoding())
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format_string = self.row_formatting_string()
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rows = [self.header_line(format_string)]
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rows.extend(self.client_line(client, format_string)
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for client in self.clients)
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def row_formatting_string(self):
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"Format string used to format table rows"
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return " ".join("{{{key}:{width}}}".format(
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width=max(len(self.tablewords[key]),
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*(len(self.string_from_client(client, key))
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for client in self.clients)),
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for key in self.keywords)
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def string_from_client(self, client, key):
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return self.valuetostring(client[key], key)
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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"
333
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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def header_line(self, format_string):
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return format_string.format(**self.tablewords)
341
def client_line(self, client, format_string):
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return format_string.format(
343
**{key: self.string_from_client(client, key)
344
for key in self.keywords})
347
def has_actions(options):
348
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,
359
options.approved_by_default is not None,
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options.approval_delay is not None,
361
options.approval_duration is not None,
362
options.host is not None,
363
options.secret is not None,
369
parser = argparse.ArgumentParser()
370
parser.add_argument("--version", action="version",
371
version="%(prog)s {}".format(version),
372
help="show version number and exit")
373
parser.add_argument("-a", "--all", action="store_true",
374
help="Select all clients")
375
parser.add_argument("-v", "--verbose", action="store_true",
376
help="Print all fields")
377
parser.add_argument("-j", "--dump-json", action="store_true",
378
help="Dump client data in JSON format")
379
enable_disable = parser.add_mutually_exclusive_group()
380
enable_disable.add_argument("-e", "--enable", action="store_true",
381
help="Enable client")
382
enable_disable.add_argument("-d", "--disable",
384
help="disable client")
385
parser.add_argument("-b", "--bump-timeout", action="store_true",
386
help="Bump timeout for client")
387
start_stop_checker = parser.add_mutually_exclusive_group()
388
start_stop_checker.add_argument("--start-checker",
390
help="Start checker for client")
391
start_stop_checker.add_argument("--stop-checker",
393
help="Stop checker for client")
394
parser.add_argument("-V", "--is-enabled", action="store_true",
395
help="Check if client is enabled")
396
parser.add_argument("-r", "--remove", action="store_true",
397
help="Remove client")
398
parser.add_argument("-c", "--checker",
399
help="Set checker command for client")
400
parser.add_argument("-t", "--timeout",
401
help="Set timeout for client")
402
parser.add_argument("--extended-timeout",
403
help="Set extended timeout for client")
404
parser.add_argument("-i", "--interval",
405
help="Set checker interval for client")
406
approve_deny_default = parser.add_mutually_exclusive_group()
407
approve_deny_default.add_argument(
408
"--approve-by-default", action="store_true",
409
default=None, dest="approved_by_default",
410
help="Set client to be approved by default")
411
approve_deny_default.add_argument(
412
"--deny-by-default", action="store_false",
413
dest="approved_by_default",
414
help="Set client to be denied by default")
415
parser.add_argument("--approval-delay",
416
help="Set delay before client approve/deny")
417
parser.add_argument("--approval-duration",
418
help="Set duration of one client approval")
419
parser.add_argument("-H", "--host", help="Set host for client")
420
parser.add_argument("-s", "--secret",
421
type=argparse.FileType(mode="rb"),
422
help="Set password blob (file) for client")
423
approve_deny = parser.add_mutually_exclusive_group()
424
approve_deny.add_argument(
425
"-A", "--approve", action="store_true",
426
help="Approve any current client request")
427
approve_deny.add_argument("-D", "--deny", action="store_true",
428
help="Deny any current client request")
429
parser.add_argument("--check", action="store_true",
430
help="Run self-test")
431
parser.add_argument("client", nargs="*", help="Client name")
432
options = parser.parse_args()
434
if has_actions(options) and not (options.client or options.all):
435
parser.error("Options require clients names or --all.")
436
if options.verbose and has_actions(options):
437
parser.error("--verbose can only be used alone.")
438
if options.dump_json and (options.verbose
439
or has_actions(options)):
440
parser.error("--dump-json can only be used alone.")
441
if options.all and not has_actions(options):
442
parser.error("--all requires an action.")
443
if options.is_enabled and len(options.client) > 1:
444
parser.error("--is-enabled requires exactly one client")
447
bus = dbus.SystemBus()
448
mandos_dbus_objc = bus.get_object(busname, server_path)
449
except dbus.exceptions.DBusException:
450
log.critical("Could not connect to Mandos server")
453
mandos_serv = dbus.Interface(mandos_dbus_objc,
454
dbus_interface=server_interface)
455
mandos_serv_object_manager = dbus.Interface(
456
mandos_dbus_objc, dbus_interface=dbus.OBJECT_MANAGER_IFACE)
458
# block stderr since dbus library prints to stderr
459
null = os.open(os.path.devnull, os.O_RDWR)
460
stderrcopy = os.dup(sys.stderr.fileno())
461
os.dup2(null, sys.stderr.fileno())
465
mandos_clients = {path: ifs_and_props[client_interface]
466
for path, ifs_and_props in
467
mandos_serv_object_manager
468
.GetManagedObjects().items()
469
if client_interface in ifs_and_props}
472
os.dup2(stderrcopy, sys.stderr.fileno())
474
except dbus.exceptions.DBusException as e:
475
log.critical("Failed to access Mandos server through D-Bus:"
479
# Compile dict of (clients: properties) to process
482
if options.all or not options.client:
483
clients = {bus.get_object(busname, path): properties
484
for path, properties in mandos_clients.items()}
486
for name in options.client:
487
for path, client in mandos_clients.items():
488
if client["Name"] == name:
489
client_objc = bus.get_object(busname, path)
490
clients[client_objc] = client
493
log.critical("Client not found on server: %r", name)
496
if not has_actions(options) and clients:
497
if options.verbose or options.dump_json:
498
keywords = ("Name", "Enabled", "Timeout", "LastCheckedOK",
499
"Created", "Interval", "Host", "KeyID",
500
"Fingerprint", "CheckerRunning",
501
"LastEnabled", "ApprovalPending",
502
"ApprovedByDefault", "LastApprovalRequest",
503
"ApprovalDelay", "ApprovalDuration",
504
"Checker", "ExtendedTimeout", "Expires",
507
keywords = defaultkeywords
509
if options.dump_json:
510
json.dump({client["Name"]: {key:
512
if isinstance(client[key],
516
for client in clients.values()},
517
fp=sys.stdout, indent=4,
518
separators=(',', ': '))
521
print(TableOfClients(clients.values(), keywords))
523
# Process each client in the list by all selected options
524
for client in clients:
526
def set_client_prop(prop, value):
527
"""Set a Client D-Bus property"""
528
client.Set(client_interface, prop, value,
529
dbus_interface=dbus.PROPERTIES_IFACE)
531
def set_client_prop_ms(prop, value):
532
"""Set a Client D-Bus property, converted
533
from a string to milliseconds."""
534
set_client_prop(prop,
535
string_to_delta(value).total_seconds()
539
mandos_serv.RemoveClient(client.__dbus_object_path__)
541
set_client_prop("Enabled", dbus.Boolean(True))
543
set_client_prop("Enabled", dbus.Boolean(False))
544
if options.bump_timeout:
545
set_client_prop("LastCheckedOK", "")
546
if options.start_checker:
547
set_client_prop("CheckerRunning", dbus.Boolean(True))
548
if options.stop_checker:
549
set_client_prop("CheckerRunning", dbus.Boolean(False))
550
if options.is_enabled:
551
if client.Get(client_interface, "Enabled",
552
dbus_interface=dbus.PROPERTIES_IFACE):
556
if options.checker is not None:
557
set_client_prop("Checker", options.checker)
558
if options.host is not None:
559
set_client_prop("Host", options.host)
560
if options.interval is not None:
561
set_client_prop_ms("Interval", options.interval)
562
if options.approval_delay is not None:
563
set_client_prop_ms("ApprovalDelay",
564
options.approval_delay)
565
if options.approval_duration is not None:
566
set_client_prop_ms("ApprovalDuration",
567
options.approval_duration)
568
if options.timeout is not None:
569
set_client_prop_ms("Timeout", options.timeout)
570
if options.extended_timeout is not None:
571
set_client_prop_ms("ExtendedTimeout",
572
options.extended_timeout)
573
if options.secret is not None:
574
set_client_prop("Secret",
575
dbus.ByteArray(options.secret.read()))
576
if options.approved_by_default is not None:
577
set_client_prop("ApprovedByDefault",
579
.approved_by_default))
581
client.Approve(dbus.Boolean(True),
582
dbus_interface=client_interface)
584
client.Approve(dbus.Boolean(False),
585
dbus_interface=client_interface)
588
class Test_milliseconds_to_string(unittest.TestCase):
590
self.assertEqual(milliseconds_to_string(93785000),
592
def test_no_days(self):
593
self.assertEqual(milliseconds_to_string(7385000), "02:03:05")
594
def test_all_zero(self):
595
self.assertEqual(milliseconds_to_string(0), "00:00:00")
596
def test_no_fractional_seconds(self):
597
self.assertEqual(milliseconds_to_string(400), "00:00:00")
598
self.assertEqual(milliseconds_to_string(900), "00:00:00")
599
self.assertEqual(milliseconds_to_string(1900), "00:00:01")
601
class Test_string_to_delta(unittest.TestCase):
602
def test_handles_basic_rfc3339(self):
603
self.assertEqual(string_to_delta("PT2H"),
604
datetime.timedelta(0, 7200))
605
def test_falls_back_to_pre_1_6_1_with_warning(self):
606
# assertLogs only exists in Python 3.4
607
if hasattr(self, "assertLogs"):
608
with self.assertLogs(log, logging.WARNING):
609
value = string_to_delta("2h")
611
value = string_to_delta("2h")
612
self.assertEqual(value, datetime.timedelta(0, 7200))
614
class Test_TableOfClients(unittest.TestCase):
620
"Bool": "A D-BUS Boolean",
621
"NonDbusBoolean": "A Non-D-BUS Boolean",
622
"Integer": "An Integer",
623
"Timeout": "Timedelta 1",
624
"Interval": "Timedelta 2",
625
"ApprovalDelay": "Timedelta 3",
626
"ApprovalDuration": "Timedelta 4",
627
"ExtendedTimeout": "Timedelta 5",
628
"String": "A String",
630
self.keywords = ["Attr1", "AttrTwo"]
636
"Bool": dbus.Boolean(False),
637
"NonDbusBoolean": False,
641
"ApprovalDelay": 2000,
642
"ApprovalDuration": 3000,
643
"ExtendedTimeout": 4000,
650
"Bool": dbus.Boolean(True),
651
"NonDbusBoolean": True,
654
"Interval": 93786000,
655
"ApprovalDelay": 93787000,
656
"ApprovalDuration": 93788000,
657
"ExtendedTimeout": 93789000,
658
"String": "A huge string which will not fit," * 10,
661
def test_short_header(self):
662
text = str(TableOfClients(self.clients, self.keywords,
669
self.assertEqual(text, expected_text)
670
def test_booleans(self):
671
keywords = ["Bool", "NonDbusBoolean"]
672
text = str(TableOfClients(self.clients, keywords,
675
A D-BUS Boolean A Non-D-BUS Boolean
679
self.assertEqual(text, expected_text)
680
def test_milliseconds_detection(self):
681
keywords = ["Integer", "Timeout", "Interval", "ApprovalDelay",
682
"ApprovalDuration", "ExtendedTimeout"]
683
text = str(TableOfClients(self.clients, keywords,
686
An Integer Timedelta 1 Timedelta 2 Timedelta 3 Timedelta 4 Timedelta 5
687
0 00:00:00 00:00:01 00:00:02 00:00:03 00:00:04
688
1 1T02:03:05 1T02:03:06 1T02:03:07 1T02:03:08 1T02:03:09
690
self.assertEqual(text, expected_text)
691
def test_empty_and_long_string_values(self):
692
keywords = ["String"]
693
text = str(TableOfClients(self.clients, keywords,
698
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,
700
self.assertEqual(text, expected_text)
704
def should_only_run_tests():
705
parser = argparse.ArgumentParser(add_help=False)
706
parser.add_argument("--check", action='store_true')
707
args, unknown_args = parser.parse_known_args()
708
run_tests = args.check
710
# Remove --check argument from sys.argv
711
sys.argv[1:] = unknown_args
714
# Add all tests from doctest strings
715
def load_tests(loader, tests, none):
717
tests.addTests(doctest.DocTestSuite())
720
if __name__ == "__main__":
721
if should_only_run_tests():
722
# Call using ./tdd-python-script --check [--verbose]