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  • Committer: Teddy Hogeborn
  • Date: 2014-12-21 12:54:46 UTC
  • Revision ID: teddy@recompile.se-20141221125446-bgdpi7ad9mk0o1q6
mandos (Client.config_parser): Move comment to correct place.

A comment was left behind when the code was rewritten; move the
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mandos-ctl
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# 
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# Mandos Monitor - Control and monitor the Mandos server
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# 
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# Copyright © 2008-2012 Teddy Hogeborn
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# Copyright © 2008-2012 Björn Påhlsson
 
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# Copyright © 2008-2014 Teddy Hogeborn
 
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# Copyright © 2008-2014 Björn Påhlsson
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# 
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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from __future__ import (division, absolute_import, print_function,
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                        unicode_literals)
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from future_builtins import *
 
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try:
 
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    from future_builtins import *
 
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except ImportError:
 
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    pass
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import sys
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import dbus
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import argparse
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import locale
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import datetime
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import re
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import os
 
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import collections
 
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import doctest
 
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import dbus
 
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if sys.version_info.major == 2:
 
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    str = unicode
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locale.setlocale(locale.LC_ALL, "")
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server_path = "/"
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server_interface = domain + ".Mandos"
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client_interface = domain + ".Mandos.Client"
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version = "1.5.3"
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68
 
def timedelta_to_milliseconds(td):
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    """Convert a datetime.timedelta object to milliseconds"""
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    return ((td.days * 24 * 60 * 60 * 1000)
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            + (td.seconds * 1000)
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            + (td.microseconds // 1000))
 
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version = "1.6.9"
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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 = "{0}T".format(td.days) if td.days else "",
 
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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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                    ))
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86
 
 
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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("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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    """
 
105
    
 
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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.
 
112
    
 
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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
 
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                                              # "value" is not None,
 
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                                              # must have a "group"
 
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                                              # containing digits
 
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                                    "value",  # datetime.timedelta or
 
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                                              # None
 
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                                    "followers")) # Tokens valid after
 
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                                                  # 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())
 
126
    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)))
 
132
    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)))
 
135
    token_time = Token(re.compile(r"T"),
 
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                       None,
 
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                       frozenset((token_hour, token_minute,
 
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                                  token_second)))
 
139
    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)))
 
142
    token_month = Token(re.compile(r"(\d+)M"),
 
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                        datetime.timedelta(weeks=4),
 
144
                        frozenset((token_day, token_end)))
 
145
    token_year = Token(re.compile(r"(\d+)Y"),
 
146
                       datetime.timedelta(weeks=52),
 
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                       frozenset((token_month, token_end)))
 
148
    token_week = Token(re.compile(r"(\d+)W"),
 
149
                       datetime.timedelta(weeks=1),
 
150
                       frozenset((token_end,)))
 
151
    token_duration = Token(re.compile(r"P"), None,
 
152
                           frozenset((token_year, token_month,
 
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                                      token_day, token_time,
 
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                                      token_week)))
 
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    # Define starting values
 
156
    value = datetime.timedelta() # Value so far
 
157
    found_token = None
 
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    followers = frozenset((token_duration,)) # Following valid tokens
 
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    s = duration                # 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
 
163
        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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                # Token found
 
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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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                # Go to found token
 
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                found_token = token
 
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                # Set valid next tokens
 
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                followers = found_token.followers
 
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                break
 
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        else:
 
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            # No currently valid tokens were found
 
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            raise ValueError("Invalid RFC 3339 duration")
 
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    # End token found
 
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    return value
 
184
 
 
185
 
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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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    >>> string_to_delta("5m 30s")
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    datetime.timedelta(0, 330)
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    """
 
202
    
 
203
    try:
 
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        return rfc3339_duration_to_delta(interval)
 
205
    except ValueError:
 
206
        pass
 
207
    
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    value = datetime.timedelta(0)
100
 
    regexp = re.compile("(\d+)([dsmhw]?)")
 
209
    regexp = re.compile(r"(\d+)([dsmhw]?)")
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    for num, suffix in regexp.findall(interval):
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        if suffix == "d":
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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)
124
 
        return unicode(value)
 
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        return str(value)
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    # Create format string to print table rows
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    format_string = " ".join("{{{key}:{width}}}".format(
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    # Print header line
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    print(format_string.format(**tablewords))
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    for client in clients:
137
 
        print(format_string.format(**dict((key,
 
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        print(format_string.format(**{ key:
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                                           valuetostring(client[key],
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                                                         key))
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                                          for key in keywords)))
 
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                                                         key)
 
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                                       for key in keywords }))
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def has_actions(options):
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    return any((options.enable,
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def main():
163
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    parser = argparse.ArgumentParser()
164
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    parser.add_argument("--version", action="version",
165
 
                        version = "%(prog)s {0}".format(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("--approval-duration",
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                        help="Set duration of one client approval")
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    parser.add_argument("-H", "--host", help="Set host for client")
204
 
    parser.add_argument("-s", "--secret", type=file,
 
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    parser.add_argument("-s", "--secret",
 
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                        type=argparse.FileType(mode="rb"),
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                        help="Set password blob (file) for client")
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    parser.add_argument("-A", "--approve", action="store_true",
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                        help="Approve any current client request")
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    parser.add_argument("-D", "--deny", action="store_true",
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                        help="Deny any current client request")
 
320
    parser.add_argument("--check", action="store_true",
 
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                        help="Run self-test")
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    parser.add_argument("client", nargs="*", help="Client name")
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    options = parser.parse_args()
212
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217
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                     " --all.")
218
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    if options.all and not has_actions(options):
219
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        parser.error("--all requires an action.")
 
332
 
 
333
    if options.check:
 
334
        fail_count, test_count = doctest.testmod()
 
335
        sys.exit(os.EX_OK if fail_count == 0 else 1)
220
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221
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    try:
222
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        bus = dbus.SystemBus()
250
366
    clients={}
251
367
    
252
368
    if options.all or not options.client:
253
 
        clients = dict((bus.get_object(busname, path), properties)
254
 
                       for path, properties in
255
 
                       mandos_clients.iteritems())
 
369
        clients = { bus.get_object(busname, path): properties
 
370
                    for path, properties in mandos_clients.items() }
256
371
    else:
257
372
        for name in options.client:
258
 
            for path, client in mandos_clients.iteritems():
 
373
            for path, client in mandos_clients.items():
259
374
                if client["Name"] == name:
260
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                    client_objc = bus.get_object(busname, path)
261
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                    clients[client_objc] = client
262
377
                    break
263
378
            else:
264
 
                print("Client not found on server: {0!r}"
 
379
                print("Client not found on server: {!r}"
265
380
                      .format(name), file=sys.stderr)
266
381
                sys.exit(1)
267
382
    
290
405
                """Set a Client D-Bus property, converted
291
406
                from a string to milliseconds."""
292
407
                set_client_prop(prop,
293
 
                                timedelta_to_milliseconds
294
 
                                (string_to_delta(value)))
 
408
                                string_to_delta(value).total_seconds()
 
409
                                * 1000)
295
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            if options.remove:
296
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                mandos_serv.RemoveClient(client.__dbus_object_path__)
297
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            if options.enable: