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mandos-ctl
 
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#!/usr/bin/python
 
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# -*- mode: python; coding: utf-8 -*-
 
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from __future__ import division
 
5
import sys
 
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import dbus
 
7
from optparse import OptionParser
 
8
import locale
 
9
import datetime
 
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import re
 
11
import os
 
12
 
 
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locale.setlocale(locale.LC_ALL, u'')
 
14
 
 
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tablewords = {
 
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    'Name': u'Name',
 
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    'Enabled': u'Enabled',
 
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    'Timeout': u'Timeout',
 
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    'LastCheckedOK': u'Last Successful Check',
 
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    'Created': u'Created',
 
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    'Interval': u'Interval',
 
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    'Host': u'Host',
 
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    'Fingerprint': u'Fingerprint',
 
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    'CheckerRunning': u'Check Is Running',
 
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    'LastEnabled': u'Last Enabled',
 
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    'Checker': u'Checker',
 
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    }
 
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defaultkeywords = ('Name', 'Enabled', 'Timeout', 'LastCheckedOK')
 
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domain = 'se.bsnet.fukt'
 
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busname = domain + '.Mandos'
 
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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 = "1.0.14"
 
35
 
 
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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))
 
41
 
 
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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 (u"%(days)s%(hours)02d:%(minutes)02d:%(seconds)02d"
 
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            % { "days": "%dT" % 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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                })
 
50
 
 
51
 
 
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def string_to_delta(interval):
 
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    """Parse a string and return a datetime.timedelta
 
54
 
 
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    >>> string_to_delta('7d')
 
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    datetime.timedelta(7)
 
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    >>> string_to_delta('60s')
 
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    datetime.timedelta(0, 60)
 
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    >>> string_to_delta('60m')
 
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    datetime.timedelta(0, 3600)
 
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    >>> string_to_delta('24h')
 
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    datetime.timedelta(1)
 
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    >>> string_to_delta(u'1w')
 
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    datetime.timedelta(7)
 
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    >>> string_to_delta('5m 30s')
 
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    datetime.timedelta(0, 330)
 
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    """
 
68
    timevalue = datetime.timedelta(0)
 
69
    regexp = re.compile("\d+[dsmhw]")
 
70
    
 
71
    for s in regexp.findall(interval):
 
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        try:
 
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            suffix = unicode(s[-1])
 
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            value = int(s[:-1])
 
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            if suffix == u"d":
 
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                delta = datetime.timedelta(value)
 
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            elif suffix == u"s":
 
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                delta = datetime.timedelta(0, value)
 
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            elif suffix == u"m":
 
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                delta = datetime.timedelta(0, 0, 0, 0, value)
 
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            elif suffix == u"h":
 
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                delta = datetime.timedelta(0, 0, 0, 0, 0, value)
 
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            elif suffix == u"w":
 
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                delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
 
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            else:
 
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                raise ValueError
 
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        except (ValueError, IndexError):
 
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            raise ValueError
 
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        timevalue += delta
 
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    return timevalue
 
91
 
 
92
def print_clients(clients, keywords):
 
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    def valuetostring(value, keyword):
 
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        if type(value) is dbus.Boolean:
 
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            return u"Yes" if value else u"No"
 
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        if keyword in (u"timeout", u"interval"):
 
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            return milliseconds_to_string(value)
 
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        return unicode(value)
 
99
    
 
100
    # Create format string to print table rows
 
101
    format_string = u' '.join(u'%%-%ds' %
 
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                              max(len(tablewords[key]),
 
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                                  max(len(valuetostring(client[key],
 
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                                                        key))
 
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                                      for client in
 
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                                      clients))
 
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                              for key in keywords)
 
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    # Print header line
 
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    print format_string % tuple(tablewords[key] for key in keywords)
 
110
    for client in clients:
 
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        print format_string % tuple(valuetostring(client[key], 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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                options.disable,
 
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                options.bump_timeout,
 
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                options.start_checker,
 
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                options.stop_checker,
 
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                options.is_enabled,
 
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                options.remove,
 
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                options.checker is not None,
 
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                options.timeout is not None,
 
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                options.interval is not None,
 
124
                options.host is not None,
 
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                options.secret is not None,
 
126
                options.approve,
 
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                options.deny))
 
128
        
 
129
def main():
 
130
        parser = OptionParser(version = "%%prog %s" % version)
 
131
        parser.add_option("-a", "--all", action="store_true",
 
132
                          help="Select all clients")
 
133
        parser.add_option("-v", "--verbose", action="store_true",
 
134
                          help="Print all fields")
 
135
        parser.add_option("-e", "--enable", action="store_true",
 
136
                          help="Enable client")
 
137
        parser.add_option("-d", "--disable", action="store_true",
 
138
                          help="disable client")
 
139
        parser.add_option("-b", "--bump-timeout", action="store_true",
 
140
                          help="Bump timeout for client")
 
141
        parser.add_option("--start-checker", action="store_true",
 
142
                          help="Start checker for client")
 
143
        parser.add_option("--stop-checker", action="store_true",
 
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                          help="Stop checker for client")
 
145
        parser.add_option("-V", "--is-enabled", action="store_true",
 
146
                          help="Check if client is enabled")
 
147
        parser.add_option("-r", "--remove", action="store_true",
 
148
                          help="Remove client")
 
149
        parser.add_option("-c", "--checker", type="string",
 
150
                          help="Set checker command for client")
 
151
        parser.add_option("-t", "--timeout", type="string",
 
152
                          help="Set timeout for client")
 
153
        parser.add_option("-i", "--interval", type="string",
 
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                          help="Set checker interval for client")
 
155
        parser.add_option("-H", "--host", type="string",
 
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                          help="Set host for client")
 
157
        parser.add_option("-s", "--secret", type="string",
 
158
                          help="Set password blob (file) for client")
 
159
        parser.add_option("-A", "--approve", action="store_true",
 
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                          help="Approve any current client request")
 
161
        parser.add_option("-D", "--deny", action="store_true",
 
162
                          help="Deny any current client request")
 
163
        options, client_names = parser.parse_args()
 
164
 
 
165
        if has_actions(options) and not client_names and not options.all:
 
166
            parser.error('Options requires clients names or --all.')
 
167
        if options.verbose and has_actions(options):
 
168
            parser.error('Verbose option can only be used alone or with --all.')
 
169
        if options.all and not has_actions(options):
 
170
            parser.error('--all requires an action')
 
171
            
 
172
        try:
 
173
            bus = dbus.SystemBus()
 
174
            mandos_dbus_objc = bus.get_object(busname, server_path)
 
175
        except dbus.exceptions.DBusException:
 
176
            print >> sys.stderr, "Could not connect to Mandos server"
 
177
            sys.exit(1)
 
178
    
 
179
        mandos_serv = dbus.Interface(mandos_dbus_objc,
 
180
                                     dbus_interface = server_interface)
 
181
 
 
182
        #block stderr since dbus library prints to stderr
 
183
        null = os.open(os.path.devnull, os.O_RDWR)
 
184
        stderrcopy = os.dup(sys.stderr.fileno())
 
185
        os.dup2(null, sys.stderr.fileno())
 
186
        os.close(null)
 
187
        try:
 
188
            try:
 
189
                mandos_clients = mandos_serv.GetAllClientsWithProperties()
 
190
            finally:
 
191
                #restore stderr
 
192
                os.dup2(stderrcopy, sys.stderr.fileno())
 
193
                os.close(stderrcopy)
 
194
        except dbus.exceptions.DBusException, e:
 
195
            print >> sys.stderr, "Access denied: Accessing mandos server through dbus."
 
196
            sys.exit(1)
 
197
            
 
198
        # Compile list of clients to process
 
199
        clients=[]
 
200
 
 
201
        if options.all or not client_names:
 
202
            clients = (bus.get_object(busname, path) for path in mandos_clients.iterkeys())
 
203
        else:
 
204
            for name in client_names:
 
205
                for path, client in mandos_clients.iteritems():
 
206
                    if client['Name'] == name:
 
207
                        client_objc = bus.get_object(busname, path)
 
208
                        clients.append(client_objc)
 
209
                        break
 
210
                else:
 
211
                    print >> sys.stderr, "Client not found on server: %r" % name
 
212
                    sys.exit(1)
 
213
            
 
214
        if not has_actions(options) and clients:
 
215
            if options.verbose:
 
216
                keywords = ('Name', 'Enabled', 'Timeout', 'LastCheckedOK',
 
217
                            'Created', 'Interval', 'Host', 'Fingerprint',
 
218
                            'CheckerRunning', 'LastEnabled', 'Checker')
 
219
            else:
 
220
                keywords = defaultkeywords
 
221
                
 
222
            print_clients(mandos_clients.values(), keywords)
 
223
        else:
 
224
            # Process each client in the list by all selected options
 
225
            for client in clients:
 
226
                if options.remove:
 
227
                    mandos_serv.RemoveClient(client.__dbus_object_path__)
 
228
                if options.enable:
 
229
                    client.Enable(dbus_interface=client_interface)
 
230
                if options.disable:
 
231
                    client.Disable(dbus_interface=client_interface)
 
232
                if options.bump_timeout:
 
233
                    client.CheckedOK(dbus_interface=client_interface)
 
234
                if options.start_checker:
 
235
                    client.StartChecker(dbus_interface=client_interface)
 
236
                if options.stop_checker:
 
237
                    client.StopChecker(dbus_interface=client_interface)
 
238
                if options.is_enabled:
 
239
                    sys.exit(0 if client.Get(client_interface,
 
240
                                             u"Enabled",
 
241
                                             dbus_interface=dbus.PROPERTIES_IFACE)
 
242
                             else 1)
 
243
                if options.checker:
 
244
                    client.Set(client_interface, u"Checker", options.checker,
 
245
                               dbus_interface=dbus.PROPERTIES_IFACE)
 
246
                if options.host:
 
247
                    client.Set(client_interface, u"Host", options.host,
 
248
                               dbus_interface=dbus.PROPERTIES_IFACE)
 
249
                if options.interval:
 
250
                    client.Set(client_interface, u"Interval",
 
251
                               timedelta_to_milliseconds
 
252
                               (string_to_delta(options.interval)),
 
253
                               dbus_interface=dbus.PROPERTIES_IFACE)
 
254
                if options.timeout:
 
255
                    client.Set(client_interface, u"Timeout",
 
256
                               timedelta_to_milliseconds(string_to_delta
 
257
                                                         (options.timeout)),
 
258
                               dbus_interface=dbus.PROPERTIES_IFACE)
 
259
                if options.secret:
 
260
                    client.Set(client_interface, u"Secret",
 
261
                               dbus.ByteArray(open(options.secret, u'rb').read()),
 
262
                               dbus_interface=dbus.PROPERTIES_IFACE)
 
263
                if options.approve:
 
264
                    client.Approve(dbus.Boolean(True), dbus_interface=client_interface)
 
265
                if options.deny:
 
266
                    client.Approve(dbus.Boolean(False), dbus_interface=client_interface)
 
267
 
 
268
if __name__ == '__main__':
 
269
    main()