/mandos/trunk

To get this branch, use:
bzr branch http://bzr.recompile.se/loggerhead/mandos/trunk

« back to all changes in this revision

Viewing changes to mandos-ctl

  • Committer: Teddy Hogeborn
  • Date: 2012-06-22 23:33:56 UTC
  • Revision ID: teddy@recompile.se-20120622233356-odoqqt2ki2gssn37
* Makefile (check): Also check mandos-ctl.
* mandos-ctl: All options taking a time interval argument can now take
              an RFC 3339 duration.
  (rfc3339_duration_to_delta): New function.
  (string_to_delta): Try rfc3339_duration_to_delta first.
  (main): New "--check" option.
* mandos-ctl.xml (SYNOPSIS, OPTIONS): Document new "--check" option.

Show diffs side-by-side

added added

removed removed

Lines of Context:
29
29
from future_builtins import *
30
30
 
31
31
import sys
32
 
import dbus
33
32
import argparse
34
33
import locale
35
34
import datetime
36
35
import re
37
36
import os
 
37
import collections
 
38
import doctest
 
39
 
 
40
import dbus
38
41
 
39
42
locale.setlocale(locale.LC_ALL, "")
40
43
 
63
66
server_path = "/"
64
67
server_interface = domain + ".Mandos"
65
68
client_interface = domain + ".Mandos.Client"
66
 
version = "1.5.3"
 
69
version = "1.6.0"
67
70
 
68
71
def timedelta_to_milliseconds(td):
69
72
    """Convert a datetime.timedelta object to milliseconds"""
80
83
                    seconds = td.seconds % 60,
81
84
                    ))
82
85
 
 
86
 
 
87
def rfc3339_duration_to_delta(duration):
 
88
    """Parse a RFC 3339 "duration" and return a datetime.timedelta
 
89
    
 
90
    >>> rfc3339_duration_to_delta("P7D")
 
91
    datetime.timedelta(7)
 
92
    >>> rfc3339_duration_to_delta("PT60S")
 
93
    datetime.timedelta(0, 60)
 
94
    >>> rfc3339_duration_to_delta("PT60M")
 
95
    datetime.timedelta(0, 3600)
 
96
    >>> rfc3339_duration_to_delta("PT24H")
 
97
    datetime.timedelta(1)
 
98
    >>> rfc3339_duration_to_delta("P1W")
 
99
    datetime.timedelta(7)
 
100
    >>> rfc3339_duration_to_delta("PT5M30S")
 
101
    datetime.timedelta(0, 330)
 
102
    >>> rfc3339_duration_to_delta("P1DT3M20S")
 
103
    datetime.timedelta(1, 200)
 
104
    """
 
105
    
 
106
    # Parsing a RFC 3339 duration with regular expressions is not
 
107
    # possible - there would have to be multiple places for the same
 
108
    # values, like seconds.  This, while more esoteric, is cleaner
 
109
    # without depending on a parsing library.  If Python had a
 
110
    # built-in library for parsing we would use it, but we'd like to
 
111
    # avoid excessive use of external libraries.
 
112
    
 
113
    # New type for defining tokens, syntax, and semantics all-in-one
 
114
    Token = collections.namedtuple("Token",
 
115
                                   ("regexp", # To match token; if
 
116
                                              # "value" is not None,
 
117
                                              # must have a "group"
 
118
                                              # containing digits
 
119
                                    "value",  # datetime.timedelta or
 
120
                                              # None
 
121
                                    "followers")) # Tokens valid after
 
122
                                                  # this token
 
123
    # RFC 3339 "duration" tokens, syntax, and semantics; taken from
 
124
    # the "duration" ABNF definition in RFC 3339, Appendix A.
 
125
    token_end = Token(re.compile(r"$"), None, frozenset())
 
126
    token_second = Token(re.compile(r"(\d+)S"),
 
127
                         datetime.timedelta(seconds=1),
 
128
                         frozenset((token_end,)))
 
129
    token_minute = Token(re.compile(r"(\d+)M"),
 
130
                         datetime.timedelta(minutes=1),
 
131
                         frozenset((token_second, token_end)))
 
132
    token_hour = Token(re.compile(r"(\d+)H"),
 
133
                       datetime.timedelta(hours=1),
 
134
                       frozenset((token_minute, token_end)))
 
135
    token_time = Token(re.compile(r"T"),
 
136
                       None,
 
137
                       frozenset((token_hour, token_minute,
 
138
                                  token_second)))
 
139
    token_day = Token(re.compile(r"(\d+)D"),
 
140
                      datetime.timedelta(days=1),
 
141
                      frozenset((token_time, token_end)))
 
142
    token_month = Token(re.compile(r"(\d+)M"),
 
143
                        datetime.timedelta(weeks=4),
 
144
                        frozenset((token_day, token_end)))
 
145
    token_year = Token(re.compile(r"(\d+)Y"),
 
146
                       datetime.timedelta(weeks=52),
 
147
                       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,
 
153
                                      token_day, token_time,
 
154
                                      token_week))),
 
155
    # Define starting values
 
156
    value = datetime.timedelta() # Value so far
 
157
    found_token = None
 
158
    followers = frozenset(token_duration,) # Following valid tokens
 
159
    s = duration                # String left to parse
 
160
    # Loop until end token is found
 
161
    while found_token is not token_end:
 
162
        # Search for any currently valid tokens
 
163
        for token in followers:
 
164
            match = token.regexp.match(s)
 
165
            if match is not None:
 
166
                # Token found
 
167
                if token.value is not None:
 
168
                    # Value found, parse digits
 
169
                    factor = int(match.group(1), 10)
 
170
                    # Add to value so far
 
171
                    value += factor * token.value
 
172
                # Strip token from string
 
173
                s = token.regexp.sub("", s, 1)
 
174
                # Go to found token
 
175
                found_token = token
 
176
                # Set valid next tokens
 
177
                followers = found_token.followers
 
178
                break
 
179
        else:
 
180
            # No currently valid tokens were found
 
181
            raise ValueError("Invalid RFC 3339 duration")
 
182
    # End token found
 
183
    return value
 
184
 
 
185
 
83
186
def string_to_delta(interval):
84
187
    """Parse a string and return a datetime.timedelta
85
188
    
97
200
    datetime.timedelta(0, 330)
98
201
    """
99
202
    value = datetime.timedelta(0)
100
 
    regexp = re.compile("(\d+)([dsmhw]?)")
 
203
    regexp = re.compile(r"(\d+)([dsmhw]?)")
 
204
    
 
205
    try:
 
206
        return rfc3339_duration_to_delta(interval)
 
207
    except ValueError:
 
208
        pass
101
209
    
102
210
    for num, suffix in regexp.findall(interval):
103
211
        if suffix == "d":
207
315
                        help="Approve any current client request")
208
316
    parser.add_argument("-D", "--deny", action="store_true",
209
317
                        help="Deny any current client request")
 
318
    parser.add_argument("--check", action="store_true",
 
319
                        help="Run self-test")
210
320
    parser.add_argument("client", nargs="*", help="Client name")
211
321
    options = parser.parse_args()
212
322
    
217
327
                     " --all.")
218
328
    if options.all and not has_actions(options):
219
329
        parser.error("--all requires an action.")
 
330
 
 
331
    if options.check:
 
332
        fail_count, test_count = doctest.testmod()
 
333
        sys.exit(0 if fail_count == 0 else 1)
220
334
    
221
335
    try:
222
336
        bus = dbus.SystemBus()