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#!/usr/bin/python
2
 
# -*- mode: python; coding: utf-8 -*-
3
 
4
 
# Mandos Monitor - Control and monitor the Mandos server
5
 
6
 
# Copyright © 2008-2010 Teddy Hogeborn
7
 
# Copyright © 2008-2010 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@fukt.bsnet.se>.
23
 
24
 
 
25
 
from __future__ import division, absolute_import, unicode_literals
26
 
 
27
 
import sys
28
 
import dbus
29
 
from optparse import OptionParser
30
 
import locale
31
 
import datetime
32
 
import re
33
 
import os
34
 
 
35
 
locale.setlocale(locale.LC_ALL, "")
36
 
 
37
 
tablewords = {
38
 
    "Name": "Name",
39
 
    "Enabled": "Enabled",
40
 
    "Timeout": "Timeout",
41
 
    "LastCheckedOK": "Last Successful Check",
42
 
    "LastApprovalRequest": "Last Approval Request",
43
 
    "Created": "Created",
44
 
    "Interval": "Interval",
45
 
    "Host": "Host",
46
 
    "Fingerprint": "Fingerprint",
47
 
    "CheckerRunning": "Check Is Running",
48
 
    "LastEnabled": "Last Enabled",
49
 
    "ApprovalPending": "Approval Is Pending",
50
 
    "ApprovedByDefault": "Approved By Default",
51
 
    "ApprovalDelay": "Approval Delay",
52
 
    "ApprovalDuration": "Approval Duration",
53
 
    "Checker": "Checker",
54
 
    }
55
 
defaultkeywords = ("Name", "Enabled", "Timeout", "LastCheckedOK")
56
 
domain = "se.bsnet.fukt"
57
 
busname = domain + ".Mandos"
58
 
server_path = "/"
59
 
server_interface = domain + ".Mandos"
60
 
client_interface = domain + ".Mandos.Client"
61
 
version = "1.2.3"
62
 
 
63
 
def timedelta_to_milliseconds(td):
64
 
    """Convert a datetime.timedelta object to milliseconds"""
65
 
    return ((td.days * 24 * 60 * 60 * 1000)
66
 
            + (td.seconds * 1000)
67
 
            + (td.microseconds // 1000))
68
 
 
69
 
def milliseconds_to_string(ms):
70
 
    td = datetime.timedelta(0, 0, 0, ms)
71
 
    return ("%(days)s%(hours)02d:%(minutes)02d:%(seconds)02d"
72
 
            % { "days": "%dT" % td.days if td.days else "",
73
 
                "hours": td.seconds // 3600,
74
 
                "minutes": (td.seconds % 3600) // 60,
75
 
                "seconds": td.seconds % 60,
76
 
                })
77
 
 
78
 
 
79
 
def string_to_delta(interval):
80
 
    """Parse a string and return a datetime.timedelta
81
 
 
82
 
    >>> string_to_delta("7d")
83
 
    datetime.timedelta(7)
84
 
    >>> string_to_delta("60s")
85
 
    datetime.timedelta(0, 60)
86
 
    >>> string_to_delta("60m")
87
 
    datetime.timedelta(0, 3600)
88
 
    >>> string_to_delta("24h")
89
 
    datetime.timedelta(1)
90
 
    >>> string_to_delta("1w")
91
 
    datetime.timedelta(7)
92
 
    >>> string_to_delta("5m 30s")
93
 
    datetime.timedelta(0, 330)
94
 
    """
95
 
    timevalue = datetime.timedelta(0)
96
 
    regexp = re.compile("\d+[dsmhw]")
97
 
    
98
 
    for s in regexp.findall(interval):
99
 
        try:
100
 
            suffix = unicode(s[-1])
101
 
            value = int(s[:-1])
102
 
            if suffix == "d":
103
 
                delta = datetime.timedelta(value)
104
 
            elif suffix == "s":
105
 
                delta = datetime.timedelta(0, value)
106
 
            elif suffix == "m":
107
 
                delta = datetime.timedelta(0, 0, 0, 0, value)
108
 
            elif suffix == "h":
109
 
                delta = datetime.timedelta(0, 0, 0, 0, 0, value)
110
 
            elif suffix == "w":
111
 
                delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
112
 
            else:
113
 
                raise ValueError
114
 
        except (ValueError, IndexError):
115
 
            raise ValueError
116
 
        timevalue += delta
117
 
    return timevalue
118
 
 
119
 
def print_clients(clients, keywords):
120
 
    def valuetostring(value, keyword):
121
 
        if type(value) is dbus.Boolean:
122
 
            return "Yes" if value else "No"
123
 
        if keyword in ("Timeout", "Interval", "ApprovalDelay",
124
 
                       "ApprovalDuration"):
125
 
            return milliseconds_to_string(value)
126
 
        return unicode(value)
127
 
    
128
 
    # Create format string to print table rows
129
 
    format_string = " ".join("%%-%ds" %
130
 
                             max(len(tablewords[key]),
131
 
                                 max(len(valuetostring(client[key],
132
 
                                                       key))
133
 
                                     for client in
134
 
                                     clients))
135
 
                             for key in keywords)
136
 
    # Print header line
137
 
    print format_string % tuple(tablewords[key] for key in keywords)
138
 
    for client in clients:
139
 
        print format_string % tuple(valuetostring(client[key], 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.interval is not None,
153
 
                options.approved_by_default is not None,
154
 
                options.approval_delay is not None,
155
 
                options.approval_duration is not None,
156
 
                options.host is not None,
157
 
                options.secret is not None,
158
 
                options.approve,
159
 
                options.deny))
160
 
        
161
 
def main():
162
 
        parser = OptionParser(version = "%%prog %s" % version)
163
 
        parser.add_option("-a", "--all", action="store_true",
164
 
                          help="Select all clients")
165
 
        parser.add_option("-v", "--verbose", action="store_true",
166
 
                          help="Print all fields")
167
 
        parser.add_option("-e", "--enable", action="store_true",
168
 
                          help="Enable client")
169
 
        parser.add_option("-d", "--disable", action="store_true",
170
 
                          help="disable client")
171
 
        parser.add_option("-b", "--bump-timeout", action="store_true",
172
 
                          help="Bump timeout for client")
173
 
        parser.add_option("--start-checker", action="store_true",
174
 
                          help="Start checker for client")
175
 
        parser.add_option("--stop-checker", action="store_true",
176
 
                          help="Stop checker for client")
177
 
        parser.add_option("-V", "--is-enabled", action="store_true",
178
 
                          help="Check if client is enabled")
179
 
        parser.add_option("-r", "--remove", action="store_true",
180
 
                          help="Remove client")
181
 
        parser.add_option("-c", "--checker", type="string",
182
 
                          help="Set checker command for client")
183
 
        parser.add_option("-t", "--timeout", type="string",
184
 
                          help="Set timeout for client")
185
 
        parser.add_option("-i", "--interval", type="string",
186
 
                          help="Set checker interval for client")
187
 
        parser.add_option("--approve-by-default", action="store_true",
188
 
                          dest="approved_by_default",
189
 
                          help="Set client to be approved by default")
190
 
        parser.add_option("--deny-by-default", action="store_false",
191
 
                          dest="approved_by_default",
192
 
                          help="Set client to be denied by default")
193
 
        parser.add_option("--approval-delay", type="string",
194
 
                          help="Set delay before client approve/deny")
195
 
        parser.add_option("--approval-duration", type="string",
196
 
                          help="Set duration of one client approval")
197
 
        parser.add_option("-H", "--host", type="string",
198
 
                          help="Set host for client")
199
 
        parser.add_option("-s", "--secret", type="string",
200
 
                          help="Set password blob (file) for client")
201
 
        parser.add_option("-A", "--approve", action="store_true",
202
 
                          help="Approve any current client request")
203
 
        parser.add_option("-D", "--deny", action="store_true",
204
 
                          help="Deny any current client request")
205
 
        options, client_names = parser.parse_args()
206
 
        
207
 
        if has_actions(options) and not client_names and not options.all:
208
 
            parser.error("Options require clients names or --all.")
209
 
        if options.verbose and has_actions(options):
210
 
            parser.error("--verbose can only be used alone or with"
211
 
                         " --all.")
212
 
        if options.all and not has_actions(options):
213
 
            parser.error("--all requires an action.")
214
 
        
215
 
        try:
216
 
            bus = dbus.SystemBus()
217
 
            mandos_dbus_objc = bus.get_object(busname, server_path)
218
 
        except dbus.exceptions.DBusException:
219
 
            print >> sys.stderr, "Could not connect to Mandos server"
220
 
            sys.exit(1)
221
 
    
222
 
        mandos_serv = dbus.Interface(mandos_dbus_objc,
223
 
                                     dbus_interface = server_interface)
224
 
 
225
 
        #block stderr since dbus library prints to stderr
226
 
        null = os.open(os.path.devnull, os.O_RDWR)
227
 
        stderrcopy = os.dup(sys.stderr.fileno())
228
 
        os.dup2(null, sys.stderr.fileno())
229
 
        os.close(null)
230
 
        try:
231
 
            try:
232
 
                mandos_clients = mandos_serv.GetAllClientsWithProperties()
233
 
            finally:
234
 
                #restore stderr
235
 
                os.dup2(stderrcopy, sys.stderr.fileno())
236
 
                os.close(stderrcopy)
237
 
        except dbus.exceptions.DBusException, e:
238
 
            print >> sys.stderr, "Access denied: Accessing mandos server through dbus."
239
 
            sys.exit(1)
240
 
            
241
 
        # Compile dict of (clients: properties) to process
242
 
        clients={}
243
 
        
244
 
        if options.all or not client_names:
245
 
            clients = dict((bus.get_object(busname, path), properties)
246
 
                           for path, properties in
247
 
                           mandos_clients.iteritems())
248
 
        else:
249
 
            for name in client_names:
250
 
                for path, client in mandos_clients.iteritems():
251
 
                    if client["Name"] == name:
252
 
                        client_objc = bus.get_object(busname, path)
253
 
                        clients[client_objc] = client
254
 
                        break
255
 
                else:
256
 
                    print >> sys.stderr, "Client not found on server: %r" % name
257
 
                    sys.exit(1)
258
 
            
259
 
        if not has_actions(options) and clients:
260
 
            if options.verbose:
261
 
                keywords = ("Name", "Enabled", "Timeout",
262
 
                            "LastCheckedOK", "Created", "Interval",
263
 
                            "Host", "Fingerprint", "CheckerRunning",
264
 
                            "LastEnabled", "ApprovalPending",
265
 
                            "ApprovedByDefault",
266
 
                            "LastApprovalRequest", "ApprovalDelay",
267
 
                            "ApprovalDuration", "Checker")
268
 
            else:
269
 
                keywords = defaultkeywords
270
 
            
271
 
            print_clients(clients.values(), keywords)
272
 
        else:
273
 
            # Process each client in the list by all selected options
274
 
            for client in clients:
275
 
                if options.remove:
276
 
                    mandos_serv.RemoveClient(client.__dbus_object_path__)
277
 
                if options.enable:
278
 
                    client.Enable(dbus_interface=client_interface)
279
 
                if options.disable:
280
 
                    client.Disable(dbus_interface=client_interface)
281
 
                if options.bump_timeout:
282
 
                    client.CheckedOK(dbus_interface=client_interface)
283
 
                if options.start_checker:
284
 
                    client.StartChecker(dbus_interface=client_interface)
285
 
                if options.stop_checker:
286
 
                    client.StopChecker(dbus_interface=client_interface)
287
 
                if options.is_enabled:
288
 
                    sys.exit(0 if client.Get(client_interface,
289
 
                                             "Enabled",
290
 
                                             dbus_interface=dbus.PROPERTIES_IFACE)
291
 
                             else 1)
292
 
                if options.checker:
293
 
                    client.Set(client_interface, "Checker", options.checker,
294
 
                               dbus_interface=dbus.PROPERTIES_IFACE)
295
 
                if options.host:
296
 
                    client.Set(client_interface, "Host", options.host,
297
 
                               dbus_interface=dbus.PROPERTIES_IFACE)
298
 
                if options.interval:
299
 
                    client.Set(client_interface, "Interval",
300
 
                               timedelta_to_milliseconds
301
 
                               (string_to_delta(options.interval)),
302
 
                               dbus_interface=dbus.PROPERTIES_IFACE)
303
 
                if options.approval_delay:
304
 
                    client.Set(client_interface, "ApprovalDelay",
305
 
                               timedelta_to_milliseconds
306
 
                               (string_to_delta(options.
307
 
                                                approval_delay)),
308
 
                               dbus_interface=dbus.PROPERTIES_IFACE)
309
 
                if options.approval_duration:
310
 
                    client.Set(client_interface, "ApprovalDuration",
311
 
                               timedelta_to_milliseconds
312
 
                               (string_to_delta(options.
313
 
                                                approval_duration)),
314
 
                               dbus_interface=dbus.PROPERTIES_IFACE)
315
 
                if options.timeout:
316
 
                    client.Set(client_interface, "Timeout",
317
 
                               timedelta_to_milliseconds
318
 
                               (string_to_delta(options.timeout)),
319
 
                               dbus_interface=dbus.PROPERTIES_IFACE)
320
 
                if options.secret:
321
 
                    client.Set(client_interface, "Secret",
322
 
                               dbus.ByteArray(open(options.secret,
323
 
                                                   "rb").read()),
324
 
                               dbus_interface=dbus.PROPERTIES_IFACE)
325
 
                if options.approved_by_default is not None:
326
 
                    client.Set(client_interface, "ApprovedByDefault",
327
 
                               dbus.Boolean(options
328
 
                                            .approved_by_default),
329
 
                               dbus_interface=dbus.PROPERTIES_IFACE)
330
 
                if options.approve:
331
 
                    client.Approve(dbus.Boolean(True),
332
 
                                   dbus_interface=client_interface)
333
 
                elif options.deny:
334
 
                    client.Approve(dbus.Boolean(False),
335
 
                                   dbus_interface=client_interface)
336
 
 
337
 
if __name__ == "__main__":
338
 
    main()