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  • Committer: Teddy Hogeborn
  • Date: 2012-05-20 13:17:37 UTC
  • mfrom: (237.7.133 trunk)
  • mto: This revision was merged to the branch mainline in revision 300.
  • Revision ID: teddy@recompile.se-20120520131737-p1toj7kaxgs3wki3
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mandos-ctl
 
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
 
21
# <http://www.gnu.org/licenses/>.
 
22
# 
 
23
# Contact the authors at <mandos@recompile.se>.
 
24
# 
 
25
 
 
26
from __future__ import (division, absolute_import, print_function,
 
27
                        unicode_literals)
 
28
 
 
29
from future_builtins import *
 
30
 
 
31
import sys
 
32
import dbus
 
33
import argparse
 
34
import locale
 
35
import datetime
 
36
import re
 
37
import os
 
38
 
 
39
locale.setlocale(locale.LC_ALL, "")
 
40
 
 
41
tablewords = {
 
42
    "Name": "Name",
 
43
    "Enabled": "Enabled",
 
44
    "Timeout": "Timeout",
 
45
    "LastCheckedOK": "Last Successful Check",
 
46
    "LastApprovalRequest": "Last Approval Request",
 
47
    "Created": "Created",
 
48
    "Interval": "Interval",
 
49
    "Host": "Host",
 
50
    "Fingerprint": "Fingerprint",
 
51
    "CheckerRunning": "Check Is Running",
 
52
    "LastEnabled": "Last Enabled",
 
53
    "ApprovalPending": "Approval Is Pending",
 
54
    "ApprovedByDefault": "Approved By Default",
 
55
    "ApprovalDelay": "Approval Delay",
 
56
    "ApprovalDuration": "Approval Duration",
 
57
    "Checker": "Checker",
 
58
    "ExtendedTimeout" : "Extended Timeout"
 
59
    }
 
60
defaultkeywords = ("Name", "Enabled", "Timeout", "LastCheckedOK")
 
61
domain = "se.recompile"
 
62
busname = domain + ".Mandos"
 
63
server_path = "/"
 
64
server_interface = domain + ".Mandos"
 
65
client_interface = domain + ".Mandos.Client"
 
66
version = "1.5.3"
 
67
 
 
68
def timedelta_to_milliseconds(td):
 
69
    """Convert a datetime.timedelta object to milliseconds"""
 
70
    return ((td.days * 24 * 60 * 60 * 1000)
 
71
            + (td.seconds * 1000)
 
72
            + (td.microseconds // 1000))
 
73
 
 
74
def milliseconds_to_string(ms):
 
75
    td = datetime.timedelta(0, 0, 0, ms)
 
76
    return ("{days}{hours:02}:{minutes:02}:{seconds:02}"
 
77
            .format(days = "{0}T".format(td.days) if td.days else "",
 
78
                    hours = td.seconds // 3600,
 
79
                    minutes = (td.seconds % 3600) // 60,
 
80
                    seconds = td.seconds % 60,
 
81
                    ))
 
82
 
 
83
def string_to_delta(interval):
 
84
    """Parse a string and return a datetime.timedelta
 
85
    
 
86
    >>> string_to_delta("7d")
 
87
    datetime.timedelta(7)
 
88
    >>> string_to_delta("60s")
 
89
    datetime.timedelta(0, 60)
 
90
    >>> string_to_delta("60m")
 
91
    datetime.timedelta(0, 3600)
 
92
    >>> string_to_delta("24h")
 
93
    datetime.timedelta(1)
 
94
    >>> string_to_delta("1w")
 
95
    datetime.timedelta(7)
 
96
    >>> string_to_delta("5m 30s")
 
97
    datetime.timedelta(0, 330)
 
98
    """
 
99
    value = datetime.timedelta(0)
 
100
    regexp = re.compile("(\d+)([dsmhw]?)")
 
101
    
 
102
    for num, suffix in regexp.findall(interval):
 
103
        if suffix == "d":
 
104
            value += datetime.timedelta(int(num))
 
105
        elif suffix == "s":
 
106
            value += datetime.timedelta(0, int(num))
 
107
        elif suffix == "m":
 
108
            value += datetime.timedelta(0, 0, 0, 0, int(num))
 
109
        elif suffix == "h":
 
110
            value += datetime.timedelta(0, 0, 0, 0, 0, int(num))
 
111
        elif suffix == "w":
 
112
            value += datetime.timedelta(0, 0, 0, 0, 0, 0, int(num))
 
113
        elif suffix == "":
 
114
            value += datetime.timedelta(0, 0, 0, int(num))
 
115
    return value
 
116
 
 
117
def print_clients(clients, keywords):
 
118
    def valuetostring(value, keyword):
 
119
        if type(value) is dbus.Boolean:
 
120
            return "Yes" if value else "No"
 
121
        if keyword in ("Timeout", "Interval", "ApprovalDelay",
 
122
                       "ApprovalDuration", "ExtendedTimeout"):
 
123
            return milliseconds_to_string(value)
 
124
        return unicode(value)
 
125
    
 
126
    # Create format string to print table rows
 
127
    format_string = " ".join("{{{key}:{width}}}".format(
 
128
            width = max(len(tablewords[key]),
 
129
                        max(len(valuetostring(client[key],
 
130
                                              key))
 
131
                            for client in
 
132
                            clients)),
 
133
            key = key) for key in keywords)
 
134
    # Print header line
 
135
    print(format_string.format(**tablewords))
 
136
    for client in clients:
 
137
        print(format_string.format(**dict((key,
 
138
                                           valuetostring(client[key],
 
139
                                                         key))
 
140
                                          for key in keywords)))
 
141
 
 
142
def has_actions(options):
 
143
    return any((options.enable,
 
144
                options.disable,
 
145
                options.bump_timeout,
 
146
                options.start_checker,
 
147
                options.stop_checker,
 
148
                options.is_enabled,
 
149
                options.remove,
 
150
                options.checker is not None,
 
151
                options.timeout is not None,
 
152
                options.extended_timeout is not None,
 
153
                options.interval is not None,
 
154
                options.approved_by_default is not None,
 
155
                options.approval_delay is not None,
 
156
                options.approval_duration is not None,
 
157
                options.host is not None,
 
158
                options.secret is not None,
 
159
                options.approve,
 
160
                options.deny))
 
161
 
 
162
def main():
 
163
    parser = argparse.ArgumentParser()
 
164
    parser.add_argument("--version", action="version",
 
165
                        version = "%(prog)s {0}".format(version),
 
166
                        help="show version number and exit")
 
167
    parser.add_argument("-a", "--all", action="store_true",
 
168
                        help="Select all clients")
 
169
    parser.add_argument("-v", "--verbose", action="store_true",
 
170
                        help="Print all fields")
 
171
    parser.add_argument("-e", "--enable", action="store_true",
 
172
                        help="Enable client")
 
173
    parser.add_argument("-d", "--disable", action="store_true",
 
174
                        help="disable client")
 
175
    parser.add_argument("-b", "--bump-timeout", action="store_true",
 
176
                        help="Bump timeout for client")
 
177
    parser.add_argument("--start-checker", action="store_true",
 
178
                        help="Start checker for client")
 
179
    parser.add_argument("--stop-checker", action="store_true",
 
180
                        help="Stop checker for client")
 
181
    parser.add_argument("-V", "--is-enabled", action="store_true",
 
182
                        help="Check if client is enabled")
 
183
    parser.add_argument("-r", "--remove", action="store_true",
 
184
                        help="Remove client")
 
185
    parser.add_argument("-c", "--checker",
 
186
                        help="Set checker command for client")
 
187
    parser.add_argument("-t", "--timeout",
 
188
                        help="Set timeout for client")
 
189
    parser.add_argument("--extended-timeout",
 
190
                        help="Set extended timeout for client")
 
191
    parser.add_argument("-i", "--interval",
 
192
                        help="Set checker interval for client")
 
193
    parser.add_argument("--approve-by-default", action="store_true",
 
194
                        default=None, dest="approved_by_default",
 
195
                        help="Set client to be approved by default")
 
196
    parser.add_argument("--deny-by-default", action="store_false",
 
197
                        dest="approved_by_default",
 
198
                        help="Set client to be denied by default")
 
199
    parser.add_argument("--approval-delay",
 
200
                        help="Set delay before client approve/deny")
 
201
    parser.add_argument("--approval-duration",
 
202
                        help="Set duration of one client approval")
 
203
    parser.add_argument("-H", "--host", help="Set host for client")
 
204
    parser.add_argument("-s", "--secret", type=file,
 
205
                        help="Set password blob (file) for client")
 
206
    parser.add_argument("-A", "--approve", action="store_true",
 
207
                        help="Approve any current client request")
 
208
    parser.add_argument("-D", "--deny", action="store_true",
 
209
                        help="Deny any current client request")
 
210
    parser.add_argument("client", nargs="*", help="Client name")
 
211
    options = parser.parse_args()
 
212
    
 
213
    if has_actions(options) and not (options.client or options.all):
 
214
        parser.error("Options require clients names or --all.")
 
215
    if options.verbose and has_actions(options):
 
216
        parser.error("--verbose can only be used alone or with"
 
217
                     " --all.")
 
218
    if options.all and not has_actions(options):
 
219
        parser.error("--all requires an action.")
 
220
    
 
221
    try:
 
222
        bus = dbus.SystemBus()
 
223
        mandos_dbus_objc = bus.get_object(busname, server_path)
 
224
    except dbus.exceptions.DBusException:
 
225
        print("Could not connect to Mandos server",
 
226
              file=sys.stderr)
 
227
        sys.exit(1)
 
228
    
 
229
    mandos_serv = dbus.Interface(mandos_dbus_objc,
 
230
                                 dbus_interface = server_interface)
 
231
    
 
232
    #block stderr since dbus library prints to stderr
 
233
    null = os.open(os.path.devnull, os.O_RDWR)
 
234
    stderrcopy = os.dup(sys.stderr.fileno())
 
235
    os.dup2(null, sys.stderr.fileno())
 
236
    os.close(null)
 
237
    try:
 
238
        try:
 
239
            mandos_clients = mandos_serv.GetAllClientsWithProperties()
 
240
        finally:
 
241
            #restore stderr
 
242
            os.dup2(stderrcopy, sys.stderr.fileno())
 
243
            os.close(stderrcopy)
 
244
    except dbus.exceptions.DBusException:
 
245
        print("Access denied: Accessing mandos server through dbus.",
 
246
              file=sys.stderr)
 
247
        sys.exit(1)
 
248
    
 
249
    # Compile dict of (clients: properties) to process
 
250
    clients={}
 
251
    
 
252
    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())
 
256
    else:
 
257
        for name in options.client:
 
258
            for path, client in mandos_clients.iteritems():
 
259
                if client["Name"] == name:
 
260
                    client_objc = bus.get_object(busname, path)
 
261
                    clients[client_objc] = client
 
262
                    break
 
263
            else:
 
264
                print("Client not found on server: {0!r}"
 
265
                      .format(name), file=sys.stderr)
 
266
                sys.exit(1)
 
267
    
 
268
    if not has_actions(options) and clients:
 
269
        if options.verbose:
 
270
            keywords = ("Name", "Enabled", "Timeout",
 
271
                        "LastCheckedOK", "Created", "Interval",
 
272
                        "Host", "Fingerprint", "CheckerRunning",
 
273
                        "LastEnabled", "ApprovalPending",
 
274
                        "ApprovedByDefault",
 
275
                        "LastApprovalRequest", "ApprovalDelay",
 
276
                        "ApprovalDuration", "Checker",
 
277
                        "ExtendedTimeout")
 
278
        else:
 
279
            keywords = defaultkeywords
 
280
        
 
281
        print_clients(clients.values(), keywords)
 
282
    else:
 
283
        # Process each client in the list by all selected options
 
284
        for client in clients:
 
285
            def set_client_prop(prop, value):
 
286
                """Set a Client D-Bus property"""
 
287
                client.Set(client_interface, prop, value,
 
288
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
289
            def set_client_prop_ms(prop, value):
 
290
                """Set a Client D-Bus property, converted
 
291
                from a string to milliseconds."""
 
292
                set_client_prop(prop,
 
293
                                timedelta_to_milliseconds
 
294
                                (string_to_delta(value)))
 
295
            if options.remove:
 
296
                mandos_serv.RemoveClient(client.__dbus_object_path__)
 
297
            if options.enable:
 
298
                set_client_prop("Enabled", dbus.Boolean(True))
 
299
            if options.disable:
 
300
                set_client_prop("Enabled", dbus.Boolean(False))
 
301
            if options.bump_timeout:
 
302
                set_client_prop("LastCheckedOK", "")
 
303
            if options.start_checker:
 
304
                set_client_prop("CheckerRunning", dbus.Boolean(True))
 
305
            if options.stop_checker:
 
306
                set_client_prop("CheckerRunning", dbus.Boolean(False))
 
307
            if options.is_enabled:
 
308
                sys.exit(0 if client.Get(client_interface,
 
309
                                         "Enabled",
 
310
                                         dbus_interface=
 
311
                                         dbus.PROPERTIES_IFACE)
 
312
                         else 1)
 
313
            if options.checker is not None:
 
314
                set_client_prop("Checker", options.checker)
 
315
            if options.host is not None:
 
316
                set_client_prop("Host", options.host)
 
317
            if options.interval is not None:
 
318
                set_client_prop_ms("Interval", options.interval)
 
319
            if options.approval_delay is not None:
 
320
                set_client_prop_ms("ApprovalDelay",
 
321
                                   options.approval_delay)
 
322
            if options.approval_duration is not None:
 
323
                set_client_prop_ms("ApprovalDuration",
 
324
                                   options.approval_duration)
 
325
            if options.timeout is not None:
 
326
                set_client_prop_ms("Timeout", options.timeout)
 
327
            if options.extended_timeout is not None:
 
328
                set_client_prop_ms("ExtendedTimeout",
 
329
                                   options.extended_timeout)
 
330
            if options.secret is not None:
 
331
                set_client_prop("Secret",
 
332
                                dbus.ByteArray(options.secret.read()))
 
333
            if options.approved_by_default is not None:
 
334
                set_client_prop("ApprovedByDefault",
 
335
                                dbus.Boolean(options
 
336
                                             .approved_by_default))
 
337
            if options.approve:
 
338
                client.Approve(dbus.Boolean(True),
 
339
                               dbus_interface=client_interface)
 
340
            elif options.deny:
 
341
                client.Approve(dbus.Boolean(False),
 
342
                               dbus_interface=client_interface)
 
343
 
 
344
if __name__ == "__main__":
 
345
    main()