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  • Committer: Teddy Hogeborn
  • Date: 2016-06-27 20:21:50 UTC
  • mto: (237.7.594 trunk)
  • mto: This revision was merged to the branch mainline in revision 350.
  • Revision ID: teddy@recompile.se-20160627202150-ml201ilxwjf1g29w
mandos-ctl: Implement --dump-json option

* mandos-ctl (main): Implement --dump-json option
* mandos-ctl.xml (NAME, DESCRIPTION): Change description to the more
                                      accurate "control or query".
  (SYNOPSIS): Add required group around action options and add new
              "--dump-json" option.
  (OPTIONS): Document new "--dump-json" option.

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mandos-ctl
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# 
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# Mandos Monitor - Control and monitor the Mandos server
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# 
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# Copyright © 2008-2014 Teddy Hogeborn
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# Copyright © 2008-2014 Björn Påhlsson
 
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# Copyright © 2008-2016 Teddy Hogeborn
 
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# Copyright © 2008-2016 Björn Påhlsson
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# 
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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import os
40
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import collections
41
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import doctest
 
42
import json
42
43
 
43
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import dbus
44
45
 
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    "ApprovalDelay": "Approval Delay",
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    "ApprovalDuration": "Approval Duration",
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    "Checker": "Checker",
67
 
    "ExtendedTimeout" : "Extended Timeout"
68
 
    }
 
68
    "ExtendedTimeout": "Extended Timeout"
 
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}
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defaultkeywords = ("Name", "Enabled", "Timeout", "LastCheckedOK")
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domain = "se.recompile"
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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"
75
 
version = "1.6.9"
 
76
version = "1.7.10"
 
77
 
 
78
 
 
79
try:
 
80
    dbus.OBJECT_MANAGER_IFACE
 
81
except AttributeError:
 
82
    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
76
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77
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def milliseconds_to_string(ms):
78
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    td = datetime.timedelta(0, 0, 0, ms)
79
 
    return ("{days}{hours:02}:{minutes:02}:{seconds:02}"
80
 
            .format(days = "{}T".format(td.days) if td.days else "",
81
 
                    hours = td.seconds // 3600,
82
 
                    minutes = (td.seconds % 3600) // 60,
83
 
                    seconds = td.seconds % 60,
84
 
                    ))
 
86
    return ("{days}{hours:02}:{minutes:02}:{seconds:02}".format(
 
87
        days = "{}T".format(td.days) if td.days else "",
 
88
        hours = td.seconds // 3600,
 
89
        minutes = (td.seconds % 3600) // 60,
 
90
        seconds = td.seconds % 60))
85
91
 
86
92
 
87
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def rfc3339_duration_to_delta(duration):
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    # avoid excessive use of external libraries.
112
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    # 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
 
120
    Token = collections.namedtuple("Token", (
 
121
        "regexp",  # To match token; if "value" is not None, must have
 
122
                   # a "group" containing digits
 
123
        "value",   # datetime.timedelta or None
 
124
        "followers"))           # Tokens valid after this token
123
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    # RFC 3339 "duration" tokens, syntax, and semantics; taken from
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    # the "duration" ABNF definition in RFC 3339, Appendix A.
125
127
    token_end = Token(re.compile(r"$"), None, frozenset())
126
128
    token_second = Token(re.compile(r"(\d+)S"),
127
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                         datetime.timedelta(seconds=1),
128
 
                         frozenset((token_end,)))
 
130
                         frozenset((token_end, )))
129
131
    token_minute = Token(re.compile(r"(\d+)M"),
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                         datetime.timedelta(minutes=1),
131
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                         frozenset((token_second, token_end)))
147
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                       frozenset((token_month, token_end)))
148
150
    token_week = Token(re.compile(r"(\d+)W"),
149
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                       datetime.timedelta(weeks=1),
150
 
                       frozenset((token_end,)))
 
152
                       frozenset((token_end, )))
151
153
    token_duration = Token(re.compile(r"P"), None,
152
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                           frozenset((token_year, token_month,
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                                      token_day, token_time,
155
157
    # Define starting values
156
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    value = datetime.timedelta() # Value so far
157
159
    found_token = None
158
 
    followers = frozenset((token_duration,)) # Following valid tokens
 
160
    followers = frozenset((token_duration, )) # Following valid tokens
159
161
    s = duration                # String left to parse
160
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    # Loop until end token is found
161
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    while found_token is not token_end:
178
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                break
179
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        else:
180
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            # No currently valid tokens were found
181
 
            raise ValueError("Invalid RFC 3339 duration")
 
183
            raise ValueError("Invalid RFC 3339 duration: {!r}"
 
184
                             .format(duration))
182
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    # End token found
183
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    return value
184
187
 
186
189
def string_to_delta(interval):
187
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    """Parse a string and return a datetime.timedelta
188
191
    
189
 
    >>> string_to_delta("7d")
 
192
    >>> string_to_delta('7d')
190
193
    datetime.timedelta(7)
191
 
    >>> string_to_delta("60s")
 
194
    >>> string_to_delta('60s')
192
195
    datetime.timedelta(0, 60)
193
 
    >>> string_to_delta("60m")
 
196
    >>> string_to_delta('60m')
194
197
    datetime.timedelta(0, 3600)
195
 
    >>> string_to_delta("24h")
 
198
    >>> string_to_delta('24h')
196
199
    datetime.timedelta(1)
197
 
    >>> string_to_delta("1w")
 
200
    >>> string_to_delta('1w')
198
201
    datetime.timedelta(7)
199
 
    >>> string_to_delta("5m 30s")
 
202
    >>> string_to_delta('5m 30s')
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    datetime.timedelta(0, 330)
201
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    """
202
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223
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            value += datetime.timedelta(0, 0, 0, int(num))
224
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    return value
225
228
 
 
229
 
226
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def print_clients(clients, keywords):
227
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    def valuetostring(value, keyword):
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        if type(value) is dbus.Boolean:
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    # Create format string to print table rows
236
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    format_string = " ".join("{{{key}:{width}}}".format(
237
 
            width = max(len(tablewords[key]),
238
 
                        max(len(valuetostring(client[key],
239
 
                                              key))
240
 
                            for client in
241
 
                            clients)),
242
 
            key = key) for key in keywords)
 
241
        width = max(len(tablewords[key]),
 
242
                    max(len(valuetostring(client[key], key))
 
243
                        for client in clients)),
 
244
        key = key)
 
245
                             for key in keywords)
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    # Print header line
244
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    print(format_string.format(**tablewords))
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    for client in clients:
246
 
        print(format_string.format(**{ key:
247
 
                                           valuetostring(client[key],
248
 
                                                         key)
249
 
                                       for key in keywords }))
 
249
        print(format_string.format(**{
 
250
            key: valuetostring(client[key], key)
 
251
            for key in keywords }))
 
252
 
250
253
 
251
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def has_actions(options):
252
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    return any((options.enable,
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                options.approve,
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                options.deny))
270
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274
 
271
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def main():
272
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    parser = argparse.ArgumentParser()
273
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    parser.add_argument("--version", action="version",
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                        help="Select all clients")
278
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    parser.add_argument("-v", "--verbose", action="store_true",
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                        help="Print all fields")
 
284
    parser.add_argument("-j", "--dump-json", action="store_true",
 
285
                        help="Dump client data in JSON format")
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    parser.add_argument("-e", "--enable", action="store_true",
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                        help="Enable client")
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    parser.add_argument("-d", "--disable", action="store_true",
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    if has_actions(options) and not (options.client or options.all):
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        parser.error("Options require clients names or --all.")
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    if options.verbose and has_actions(options):
328
 
        parser.error("--verbose can only be used alone or with"
329
 
                     " --all.")
 
334
        parser.error("--verbose can only be used alone.")
 
335
    if options.dump_json and (options.verbose or has_actions(options)):
 
336
        parser.error("--dump-json can only be used alone.")
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    if options.all and not has_actions(options):
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        parser.error("--all requires an action.")
332
 
 
 
339
    
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    if options.check:
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        fail_count, test_count = doctest.testmod()
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        sys.exit(os.EX_OK if fail_count == 0 else 1)
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        bus = dbus.SystemBus()
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        mandos_dbus_objc = bus.get_object(busname, server_path)
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    except dbus.exceptions.DBusException:
341
 
        print("Could not connect to Mandos server",
342
 
              file=sys.stderr)
 
348
        print("Could not connect to Mandos server", file=sys.stderr)
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        sys.exit(1)
344
350
    
345
351
    mandos_serv = dbus.Interface(mandos_dbus_objc,
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                                 dbus_interface = server_interface)
 
353
    mandos_serv_object_manager = dbus.Interface(
 
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        mandos_dbus_objc, dbus_interface = dbus.OBJECT_MANAGER_IFACE)
347
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348
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    #block stderr since dbus library prints to stderr
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    null = os.open(os.path.devnull, os.O_RDWR)
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    os.close(null)
353
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    try:
354
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        try:
355
 
            mandos_clients = mandos_serv.GetAllClientsWithProperties()
 
363
            mandos_clients = { path: ifs_and_props[client_interface]
 
364
                               for path, ifs_and_props in
 
365
                               mandos_serv_object_manager
 
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                               .GetManagedObjects().items()
 
367
                               if client_interface in ifs_and_props }
356
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        finally:
357
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            #restore stderr
358
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            os.dup2(stderrcopy, sys.stderr.fileno())
359
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            os.close(stderrcopy)
360
 
    except dbus.exceptions.DBusException:
361
 
        print("Access denied: Accessing mandos server through dbus.",
362
 
              file=sys.stderr)
 
372
    except dbus.exceptions.DBusException as e:
 
373
        print("Access denied: Accessing mandos server through D-Bus: {}"
 
374
              .format(e), file=sys.stderr)
363
375
        sys.exit(1)
364
376
    
365
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    # Compile dict of (clients: properties) to process
381
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                sys.exit(1)
382
394
    
383
395
    if not has_actions(options) and clients:
384
 
        if options.verbose:
385
 
            keywords = ("Name", "Enabled", "Timeout",
386
 
                        "LastCheckedOK", "Created", "Interval",
387
 
                        "Host", "Fingerprint", "CheckerRunning",
388
 
                        "LastEnabled", "ApprovalPending",
389
 
                        "ApprovedByDefault",
 
396
        if options.verbose or options.dump_json:
 
397
            keywords = ("Name", "Enabled", "Timeout", "LastCheckedOK",
 
398
                        "Created", "Interval", "Host", "Fingerprint",
 
399
                        "CheckerRunning", "LastEnabled",
 
400
                        "ApprovalPending", "ApprovedByDefault",
390
401
                        "LastApprovalRequest", "ApprovalDelay",
391
402
                        "ApprovalDuration", "Checker",
392
403
                        "ExtendedTimeout")
393
404
        else:
394
405
            keywords = defaultkeywords
395
406
        
396
 
        print_clients(clients.values(), keywords)
 
407
        if options.dump_json:
 
408
            json.dump({client["Name"]: {key: client[key]
 
409
                                        for key in keywords }
 
410
                       for client in clients.values() },
 
411
                      fp = sys.stdout, indent = 4,
 
412
                      separators = (',', ': '))
 
413
            print()
 
414
        else:
 
415
            print_clients(clients.values(), keywords)
397
416
    else:
398
417
        # Process each client in the list by all selected options
399
418
        for client in clients:
 
419
            
400
420
            def set_client_prop(prop, value):
401
421
                """Set a Client D-Bus property"""
402
422
                client.Set(client_interface, prop, value,
403
423
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
424
            
404
425
            def set_client_prop_ms(prop, value):
405
426
                """Set a Client D-Bus property, converted
406
427
                from a string to milliseconds."""
407
428
                set_client_prop(prop,
408
429
                                string_to_delta(value).total_seconds()
409
430
                                * 1000)
 
431
            
410
432
            if options.remove:
411
433
                mandos_serv.RemoveClient(client.__dbus_object_path__)
412
434
            if options.enable:
456
478
                client.Approve(dbus.Boolean(False),
457
479
                               dbus_interface=client_interface)
458
480
 
 
481
 
459
482
if __name__ == "__main__":
460
483
    main()