/mandos/trunk

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  • Committer: Björn Påhlsson
  • Date: 2008-07-20 02:52:20 UTC
  • Revision ID: belorn@braxen-20080720025220-r5u0388uy9iu23h6
Added following support:
Pluginbased client handler
rewritten Mandos client
       Avahi instead of udp server discovery
       openpgp encrypted key support
Passprompt stand alone application for direct console input
Added logging for Mandos server

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1
 
#!/usr/bin/python
2
 
# -*- mode: python; coding: utf-8 -*-
3
 
4
 
# Mandos Monitor - Control and monitor the Mandos server
5
 
6
 
# Copyright © 2008-2012 Teddy Hogeborn
7
 
# Copyright © 2008-2012 Björn Påhlsson
8
 
9
 
# This program is free software: you can redistribute it and/or modify
10
 
# it under the terms of the GNU General Public License as published by
11
 
# the Free Software Foundation, either version 3 of the License, or
12
 
# (at your option) any later version.
13
 
#
14
 
#     This program is distributed in the hope that it will be useful,
15
 
#     but WITHOUT ANY WARRANTY; without even the implied warranty of
16
 
#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17
 
#     GNU General Public License for more details.
18
 
19
 
# You should have received a copy of the GNU General Public License
20
 
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
21
 
22
 
# Contact the authors at <mandos@recompile.se>.
23
 
24
 
 
25
 
from __future__ import (division, absolute_import, print_function,
26
 
                        unicode_literals)
27
 
 
28
 
import sys
29
 
import dbus
30
 
import argparse
31
 
import locale
32
 
import datetime
33
 
import re
34
 
import os
35
 
 
36
 
locale.setlocale(locale.LC_ALL, "")
37
 
 
38
 
tablewords = {
39
 
    "Name": "Name",
40
 
    "Enabled": "Enabled",
41
 
    "Timeout": "Timeout",
42
 
    "LastCheckedOK": "Last Successful Check",
43
 
    "LastApprovalRequest": "Last Approval Request",
44
 
    "Created": "Created",
45
 
    "Interval": "Interval",
46
 
    "Host": "Host",
47
 
    "Fingerprint": "Fingerprint",
48
 
    "CheckerRunning": "Check Is Running",
49
 
    "LastEnabled": "Last Enabled",
50
 
    "ApprovalPending": "Approval Is Pending",
51
 
    "ApprovedByDefault": "Approved By Default",
52
 
    "ApprovalDelay": "Approval Delay",
53
 
    "ApprovalDuration": "Approval Duration",
54
 
    "Checker": "Checker",
55
 
    "ExtendedTimeout" : "Extended Timeout"
56
 
    }
57
 
defaultkeywords = ("Name", "Enabled", "Timeout", "LastCheckedOK")
58
 
domain = "se.recompile"
59
 
busname = domain + ".Mandos"
60
 
server_path = "/"
61
 
server_interface = domain + ".Mandos"
62
 
client_interface = domain + ".Mandos.Client"
63
 
version = "1.5.3"
64
 
 
65
 
def timedelta_to_milliseconds(td):
66
 
    """Convert a datetime.timedelta object to milliseconds"""
67
 
    return ((td.days * 24 * 60 * 60 * 1000)
68
 
            + (td.seconds * 1000)
69
 
            + (td.microseconds // 1000))
70
 
 
71
 
def milliseconds_to_string(ms):
72
 
    td = datetime.timedelta(0, 0, 0, ms)
73
 
    return ("{days}{hours:02}:{minutes:02}:{seconds:02}"
74
 
            .format(days = "{0}T".format(td.days) if td.days else "",
75
 
                    hours = td.seconds // 3600,
76
 
                    minutes = (td.seconds % 3600) // 60,
77
 
                    seconds = td.seconds % 60,
78
 
                    ))
79
 
 
80
 
def string_to_delta(interval):
81
 
    """Parse a string and return a datetime.timedelta
82
 
    
83
 
    >>> string_to_delta("7d")
84
 
    datetime.timedelta(7)
85
 
    >>> string_to_delta("60s")
86
 
    datetime.timedelta(0, 60)
87
 
    >>> string_to_delta("60m")
88
 
    datetime.timedelta(0, 3600)
89
 
    >>> string_to_delta("24h")
90
 
    datetime.timedelta(1)
91
 
    >>> string_to_delta("1w")
92
 
    datetime.timedelta(7)
93
 
    >>> string_to_delta("5m 30s")
94
 
    datetime.timedelta(0, 330)
95
 
    """
96
 
    value = datetime.timedelta(0)
97
 
    regexp = re.compile("(\d+)([dsmhw]?)")
98
 
    
99
 
    for num, suffix in regexp.findall(interval):
100
 
        if suffix == "d":
101
 
            value += datetime.timedelta(int(num))
102
 
        elif suffix == "s":
103
 
            value += datetime.timedelta(0, int(num))
104
 
        elif suffix == "m":
105
 
            value += datetime.timedelta(0, 0, 0, 0, int(num))
106
 
        elif suffix == "h":
107
 
            value += datetime.timedelta(0, 0, 0, 0, 0, int(num))
108
 
        elif suffix == "w":
109
 
            value += datetime.timedelta(0, 0, 0, 0, 0, 0, int(num))
110
 
        elif suffix == "":
111
 
            value += datetime.timedelta(0, 0, 0, int(num))
112
 
    return value
113
 
 
114
 
def print_clients(clients, keywords):
115
 
    def valuetostring(value, keyword):
116
 
        if type(value) is dbus.Boolean:
117
 
            return "Yes" if value else "No"
118
 
        if keyword in ("Timeout", "Interval", "ApprovalDelay",
119
 
                       "ApprovalDuration"):
120
 
            return milliseconds_to_string(value)
121
 
        return unicode(value)
122
 
    
123
 
    # Create format string to print table rows
124
 
    format_string = " ".join("{{{key}:{width}}}".format(
125
 
            width = max(len(tablewords[key]),
126
 
                        max(len(valuetostring(client[key],
127
 
                                              key))
128
 
                            for client in
129
 
                            clients)),
130
 
            key = key) for key in keywords)
131
 
    # Print header line
132
 
    print(format_string.format(**tablewords))
133
 
    for client in clients:
134
 
        print(format_string.format(**dict((key,
135
 
                                           valuetostring(client[key],
136
 
                                                         key))
137
 
                                          for key in keywords)))
138
 
 
139
 
def has_actions(options):
140
 
    return any((options.enable,
141
 
                options.disable,
142
 
                options.bump_timeout,
143
 
                options.start_checker,
144
 
                options.stop_checker,
145
 
                options.is_enabled,
146
 
                options.remove,
147
 
                options.checker is not None,
148
 
                options.timeout is not None,
149
 
                options.extended_timeout is not None,
150
 
                options.interval is not None,
151
 
                options.approved_by_default is not None,
152
 
                options.approval_delay is not None,
153
 
                options.approval_duration is not None,
154
 
                options.host is not None,
155
 
                options.secret is not None,
156
 
                options.approve,
157
 
                options.deny))
158
 
 
159
 
def main():
160
 
    parser = argparse.ArgumentParser()
161
 
    parser.add_argument("--version", action="version",
162
 
                        version = "%(prog)s {0}".format(version),
163
 
                        help="show version number and exit")
164
 
    parser.add_argument("-a", "--all", action="store_true",
165
 
                        help="Select all clients")
166
 
    parser.add_argument("-v", "--verbose", action="store_true",
167
 
                        help="Print all fields")
168
 
    parser.add_argument("-e", "--enable", action="store_true",
169
 
                        help="Enable client")
170
 
    parser.add_argument("-d", "--disable", action="store_true",
171
 
                        help="disable client")
172
 
    parser.add_argument("-b", "--bump-timeout", action="store_true",
173
 
                        help="Bump timeout for client")
174
 
    parser.add_argument("--start-checker", action="store_true",
175
 
                        help="Start checker for client")
176
 
    parser.add_argument("--stop-checker", action="store_true",
177
 
                        help="Stop checker for client")
178
 
    parser.add_argument("-V", "--is-enabled", action="store_true",
179
 
                        help="Check if client is enabled")
180
 
    parser.add_argument("-r", "--remove", action="store_true",
181
 
                        help="Remove client")
182
 
    parser.add_argument("-c", "--checker",
183
 
                        help="Set checker command for client")
184
 
    parser.add_argument("-t", "--timeout",
185
 
                        help="Set timeout for client")
186
 
    parser.add_argument("--extended-timeout",
187
 
                        help="Set extended timeout for client")
188
 
    parser.add_argument("-i", "--interval",
189
 
                        help="Set checker interval for client")
190
 
    parser.add_argument("--approve-by-default", action="store_true",
191
 
                        default=None, dest="approved_by_default",
192
 
                        help="Set client to be approved by default")
193
 
    parser.add_argument("--deny-by-default", action="store_false",
194
 
                        dest="approved_by_default",
195
 
                        help="Set client to be denied by default")
196
 
    parser.add_argument("--approval-delay",
197
 
                        help="Set delay before client approve/deny")
198
 
    parser.add_argument("--approval-duration",
199
 
                        help="Set duration of one client approval")
200
 
    parser.add_argument("-H", "--host", help="Set host for client")
201
 
    parser.add_argument("-s", "--secret", type=file,
202
 
                        help="Set password blob (file) for client")
203
 
    parser.add_argument("-A", "--approve", action="store_true",
204
 
                        help="Approve any current client request")
205
 
    parser.add_argument("-D", "--deny", action="store_true",
206
 
                        help="Deny any current client request")
207
 
    parser.add_argument("client", nargs="*", help="Client name")
208
 
    options = parser.parse_args()
209
 
    
210
 
    if has_actions(options) and not options.client and not options.all:
211
 
        parser.error("Options require clients names or --all.")
212
 
    if options.verbose and has_actions(options):
213
 
        parser.error("--verbose can only be used alone or with"
214
 
                     " --all.")
215
 
    if options.all and not has_actions(options):
216
 
        parser.error("--all requires an action.")
217
 
    
218
 
    try:
219
 
        bus = dbus.SystemBus()
220
 
        mandos_dbus_objc = bus.get_object(busname, server_path)
221
 
    except dbus.exceptions.DBusException:
222
 
        print("Could not connect to Mandos server",
223
 
              file=sys.stderr)
224
 
        sys.exit(1)
225
 
    
226
 
    mandos_serv = dbus.Interface(mandos_dbus_objc,
227
 
                                 dbus_interface = server_interface)
228
 
    
229
 
    #block stderr since dbus library prints to stderr
230
 
    null = os.open(os.path.devnull, os.O_RDWR)
231
 
    stderrcopy = os.dup(sys.stderr.fileno())
232
 
    os.dup2(null, sys.stderr.fileno())
233
 
    os.close(null)
234
 
    try:
235
 
        try:
236
 
            mandos_clients = mandos_serv.GetAllClientsWithProperties()
237
 
        finally:
238
 
            #restore stderr
239
 
            os.dup2(stderrcopy, sys.stderr.fileno())
240
 
            os.close(stderrcopy)
241
 
    except dbus.exceptions.DBusException:
242
 
        print("Access denied: Accessing mandos server through dbus.",
243
 
              file=sys.stderr)
244
 
        sys.exit(1)
245
 
    
246
 
    # Compile dict of (clients: properties) to process
247
 
    clients={}
248
 
    
249
 
    if options.all or not options.client:
250
 
        clients = dict((bus.get_object(busname, path), properties)
251
 
                       for path, properties in
252
 
                       mandos_clients.iteritems())
253
 
    else:
254
 
        for name in options.client:
255
 
            for path, client in mandos_clients.iteritems():
256
 
                if client["Name"] == name:
257
 
                    client_objc = bus.get_object(busname, path)
258
 
                    clients[client_objc] = client
259
 
                    break
260
 
            else:
261
 
                print("Client not found on server: {0!r}"
262
 
                      .format(name), file=sys.stderr)
263
 
                sys.exit(1)
264
 
    
265
 
    if not has_actions(options) and clients:
266
 
        if options.verbose:
267
 
            keywords = ("Name", "Enabled", "Timeout",
268
 
                        "LastCheckedOK", "Created", "Interval",
269
 
                        "Host", "Fingerprint", "CheckerRunning",
270
 
                        "LastEnabled", "ApprovalPending",
271
 
                        "ApprovedByDefault",
272
 
                        "LastApprovalRequest", "ApprovalDelay",
273
 
                        "ApprovalDuration", "Checker",
274
 
                        "ExtendedTimeout")
275
 
        else:
276
 
            keywords = defaultkeywords
277
 
        
278
 
        print_clients(clients.values(), keywords)
279
 
    else:
280
 
        # Process each client in the list by all selected options
281
 
        for client in clients:
282
 
            if options.remove:
283
 
                mandos_serv.RemoveClient(client.__dbus_object_path__)
284
 
            if options.enable:
285
 
                client.Enable(dbus_interface=client_interface)
286
 
            if options.disable:
287
 
                client.Disable(dbus_interface=client_interface)
288
 
            if options.bump_timeout:
289
 
                client.CheckedOK(dbus_interface=client_interface)
290
 
            if options.start_checker:
291
 
                client.StartChecker(dbus_interface=client_interface)
292
 
            if options.stop_checker:
293
 
                client.StopChecker(dbus_interface=client_interface)
294
 
            if options.is_enabled:
295
 
                sys.exit(0 if client.Get(client_interface,
296
 
                                         "Enabled",
297
 
                                         dbus_interface=
298
 
                                         dbus.PROPERTIES_IFACE)
299
 
                         else 1)
300
 
            if options.checker is not None:
301
 
                client.Set(client_interface, "Checker",
302
 
                           options.checker,
303
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
304
 
            if options.host is not None:
305
 
                client.Set(client_interface, "Host", options.host,
306
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
307
 
            if options.interval is not None:
308
 
                client.Set(client_interface, "Interval",
309
 
                           timedelta_to_milliseconds
310
 
                           (string_to_delta(options.interval)),
311
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
312
 
            if options.approval_delay is not None:
313
 
                client.Set(client_interface, "ApprovalDelay",
314
 
                           timedelta_to_milliseconds
315
 
                           (string_to_delta(options.
316
 
                                            approval_delay)),
317
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
318
 
            if options.approval_duration is not None:
319
 
                client.Set(client_interface, "ApprovalDuration",
320
 
                           timedelta_to_milliseconds
321
 
                           (string_to_delta(options.
322
 
                                            approval_duration)),
323
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
324
 
            if options.timeout is not None:
325
 
                client.Set(client_interface, "Timeout",
326
 
                           timedelta_to_milliseconds
327
 
                           (string_to_delta(options.timeout)),
328
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
329
 
            if options.extended_timeout is not None:
330
 
                client.Set(client_interface, "ExtendedTimeout",
331
 
                           timedelta_to_milliseconds
332
 
                           (string_to_delta(options.extended_timeout)),
333
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
334
 
            if options.secret is not None:
335
 
                client.Set(client_interface, "Secret",
336
 
                           dbus.ByteArray(options.secret.read()),
337
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
338
 
            if options.approved_by_default is not None:
339
 
                client.Set(client_interface, "ApprovedByDefault",
340
 
                           dbus.Boolean(options
341
 
                                        .approved_by_default),
342
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
343
 
            if options.approve:
344
 
                client.Approve(dbus.Boolean(True),
345
 
                               dbus_interface=client_interface)
346
 
            elif options.deny:
347
 
                client.Approve(dbus.Boolean(False),
348
 
                               dbus_interface=client_interface)
349
 
 
350
 
if __name__ == "__main__":
351
 
    main()