431
431
"created", "enabled", "fingerprint",
432
432
"host", "interval", "last_checked_ok",
433
433
"last_enabled", "name", "timeout")
434
client_defaults = { "timeout": "5m",
435
"extended_timeout": "15m",
437
"checker": "fping -q -- %%(host)s",
439
"approval_delay": "0s",
440
"approval_duration": "1s",
441
"approved_by_default": "True",
445
435
def timeout_milliseconds(self):
446
436
"Return the 'timeout' attribute in milliseconds"
447
return timedelta_to_milliseconds(self.timeout)
437
return _timedelta_to_milliseconds(self.timeout)
449
439
def extended_timeout_milliseconds(self):
450
440
"Return the 'extended_timeout' attribute in milliseconds"
451
return timedelta_to_milliseconds(self.extended_timeout)
441
return _timedelta_to_milliseconds(self.extended_timeout)
453
443
def interval_milliseconds(self):
454
444
"Return the 'interval' attribute in milliseconds"
455
return timedelta_to_milliseconds(self.interval)
445
return _timedelta_to_milliseconds(self.interval)
457
447
def approval_delay_milliseconds(self):
458
return timedelta_to_milliseconds(self.approval_delay)
461
def config_parser(config):
462
""" Construct a new dict of client settings of this form:
463
{ client_name: {setting_name: value, ...}, ...}
464
with exceptions for any special settings as defined above"""
466
for client_name in config.sections():
467
section = dict(config.items(client_name))
468
client = settings[client_name] = {}
470
client["host"] = section["host"]
471
# Reformat values from string types to Python types
472
client["approved_by_default"] = config.getboolean(
473
client_name, "approved_by_default")
474
client["enabled"] = config.getboolean(client_name, "enabled")
476
client["fingerprint"] = (section["fingerprint"].upper()
478
if "secret" in section:
479
client["secret"] = section["secret"].decode("base64")
480
elif "secfile" in section:
481
with open(os.path.expanduser(os.path.expandvars
482
(section["secfile"])),
484
client["secret"] = secfile.read()
486
raise TypeError("No secret or secfile for section %s"
488
client["timeout"] = string_to_delta(section["timeout"])
489
client["extended_timeout"] = string_to_delta(
490
section["extended_timeout"])
491
client["interval"] = string_to_delta(section["interval"])
492
client["approval_delay"] = string_to_delta(
493
section["approval_delay"])
494
client["approval_duration"] = string_to_delta(
495
section["approval_duration"])
496
client["checker_command"] = section["checker"]
497
client["last_approval_request"] = None
498
client["last_checked_ok"] = None
499
client["last_checker_status"] = None
500
if client["enabled"]:
501
client["last_enabled"] = datetime.datetime.utcnow()
502
client["expires"] = (datetime.datetime.utcnow()
505
client["last_enabled"] = None
506
client["expires"] = None
511
def __init__(self, settings, name = None):
448
return _timedelta_to_milliseconds(self.approval_delay)
450
def __init__(self, name = None, config=None):
512
451
"""Note: the 'checker' key in 'config' sets the
513
452
'checker_command' attribute and *not* the 'checker'
516
# adding all client settings
517
for setting, value in settings.iteritems():
518
setattr(self, setting, value)
520
457
logger.debug("Creating client %r", self.name)
521
458
# Uppercase and remove spaces from fingerprint for later
522
459
# comparison purposes with return value from the fingerprint()
461
self.fingerprint = (config["fingerprint"].upper()
524
463
logger.debug(" Fingerprint: %s", self.fingerprint)
525
self.created = settings.get("created", datetime.datetime.utcnow())
527
# attributes specific for this server instance
464
if "secret" in config:
465
self.secret = config["secret"].decode("base64")
466
elif "secfile" in config:
467
with open(os.path.expanduser(os.path.expandvars
468
(config["secfile"])),
470
self.secret = secfile.read()
472
raise TypeError("No secret or secfile for client %s"
474
self.host = config.get("host", "")
475
self.created = datetime.datetime.utcnow()
476
self.enabled = config.get("enabled", True)
477
self.last_approval_request = None
479
self.last_enabled = datetime.datetime.utcnow()
481
self.last_enabled = None
482
self.last_checked_ok = None
483
self.last_checker_status = None
484
self.timeout = string_to_delta(config["timeout"])
485
self.extended_timeout = string_to_delta(config
486
["extended_timeout"])
487
self.interval = string_to_delta(config["interval"])
528
488
self.checker = None
529
489
self.checker_initiator_tag = None
530
490
self.disable_initiator_tag = None
492
self.expires = datetime.datetime.utcnow() + self.timeout
531
495
self.checker_callback_tag = None
496
self.checker_command = config["checker"]
532
497
self.current_checker_command = None
498
self._approved = None
499
self.approved_by_default = config.get("approved_by_default",
534
501
self.approvals_pending = 0
502
self.approval_delay = string_to_delta(
503
config["approval_delay"])
504
self.approval_duration = string_to_delta(
505
config["approval_duration"])
535
506
self.changedstate = (multiprocessing_manager
536
507
.Condition(multiprocessing_manager
1098
1068
datetime_to_dbus, "LastApprovalRequest")
1099
1069
approved_by_default = notifychangeproperty(dbus.Boolean,
1100
1070
"ApprovedByDefault")
1101
approval_delay = notifychangeproperty(dbus.UInt64,
1071
approval_delay = notifychangeproperty(dbus.UInt16,
1102
1072
"ApprovalDelay",
1104
timedelta_to_milliseconds)
1074
_timedelta_to_milliseconds)
1105
1075
approval_duration = notifychangeproperty(
1106
dbus.UInt64, "ApprovalDuration",
1107
type_func = timedelta_to_milliseconds)
1076
dbus.UInt16, "ApprovalDuration",
1077
type_func = _timedelta_to_milliseconds)
1108
1078
host = notifychangeproperty(dbus.String, "Host")
1109
timeout = notifychangeproperty(dbus.UInt64, "Timeout",
1079
timeout = notifychangeproperty(dbus.UInt16, "Timeout",
1111
timedelta_to_milliseconds)
1081
_timedelta_to_milliseconds)
1112
1082
extended_timeout = notifychangeproperty(
1113
dbus.UInt64, "ExtendedTimeout",
1114
type_func = timedelta_to_milliseconds)
1115
interval = notifychangeproperty(dbus.UInt64,
1083
dbus.UInt16, "ExtendedTimeout",
1084
type_func = _timedelta_to_milliseconds)
1085
interval = notifychangeproperty(dbus.UInt16,
1118
timedelta_to_milliseconds)
1088
_timedelta_to_milliseconds)
1119
1089
checker_command = notifychangeproperty(dbus.String, "Checker")
1121
1091
del notifychangeproperty
2200
2178
client_class = functools.partial(ClientDBusTransitional,
2203
client_settings = Client.config_parser(client_config)
2181
special_settings = {
2182
# Some settings need to be accessd by special methods;
2183
# booleans need .getboolean(), etc. Here is a list of them:
2184
"approved_by_default":
2186
client_config.getboolean(section, "approved_by_default"),
2189
client_config.getboolean(section, "enabled"),
2191
# Construct a new dict of client settings of this form:
2192
# { client_name: {setting_name: value, ...}, ...}
2193
# with exceptions for any special settings as defined above
2194
client_settings = dict((clientname,
2197
if setting not in special_settings
2198
else special_settings[setting]
2200
for setting, value in
2201
client_config.items(clientname)))
2202
for clientname in client_config.sections())
2204
2204
old_client_settings = {}
2207
2207
# Get client data and settings from last running state.
2208
2208
if server_settings["restore"]:
2235
2234
if (name != "secret" and
2236
2235
value != old_client_settings[client_name]
2238
client[name] = value
2237
setattr(client, name, value)
2239
2238
except KeyError:
2242
2241
# Clients who has passed its expire date can still be
2243
# enabled if its last checker was successful. Clients
2242
# enabled if its last checker was sucessful. Clients
2244
2243
# whose checker failed before we stored its state is
2245
2244
# assumed to have failed all checkers during downtime.
2246
if client["enabled"]:
2247
if datetime.datetime.utcnow() >= client["expires"]:
2248
if not client["last_checked_ok"]:
2250
"disabling client {0} - Client never "
2251
"performed a successfull checker"
2252
.format(client["name"]))
2253
client["enabled"] = False
2254
elif client["last_checker_status"] != 0:
2256
"disabling client {0} - Client "
2257
"last checker failed with error code {1}"
2258
.format(client["name"],
2259
client["last_checker_status"]))
2245
if client["enabled"] and client["last_checked_ok"]:
2246
if ((datetime.datetime.utcnow()
2247
- client["last_checked_ok"])
2248
> client["interval"]):
2249
if client["last_checker_status"] != 0:
2260
2250
client["enabled"] = False
2262
2252
client["expires"] = (datetime.datetime
2264
2254
+ client["timeout"])
2256
client["changedstate"] = (multiprocessing_manager
2258
(multiprocessing_manager
2261
new_client = (ClientDBusTransitional.__new__
2262
(ClientDBusTransitional))
2263
tcp_server.clients[client_name] = new_client
2264
new_client.bus = bus
2265
for name, value in client.iteritems():
2266
setattr(new_client, name, value)
2267
client_object_name = unicode(client_name).translate(
2268
{ord("."): ord("_"),
2269
ord("-"): ord("_")})
2270
new_client.dbus_object_path = (dbus.ObjectPath
2272
+ client_object_name))
2273
DBusObjectWithProperties.__init__(new_client,
2278
tcp_server.clients[client_name] = (Client.__new__
2280
for name, value in client.iteritems():
2281
setattr(tcp_server.clients[client_name],
2267
client["secret"] = (
2268
pgp.decrypt(client["encrypted_secret"],
2269
client_settings[client_name]
2285
tcp_server.clients[client_name].secret = (
2286
crypt.decrypt(tcp_server.clients[client_name]
2288
client_settings[client_name]
2272
2291
# If decryption fails, we use secret from new settings
2273
logger.debug("Failed to decrypt {0} old secret"
2274
.format(client_name))
2275
client["secret"] = (
2292
tcp_server.clients[client_name].secret = (
2276
2293
client_settings[client_name]["secret"])
2279
# Add/remove clients based on new changes made to config
2280
for client_name in set(old_client_settings) - set(client_settings):
2281
del clients_data[client_name]
2282
for client_name in set(client_settings) - set(old_client_settings):
2283
clients_data[client_name] = client_settings[client_name]
2285
# Create clients all clients
2286
for client_name, client in clients_data.iteritems():
2287
tcp_server.clients[client_name] = client_class(
2288
name = client_name, settings = client)
2295
# Create/remove clients based on new changes made to config
2296
for clientname in set(old_client_settings) - set(client_settings):
2297
del tcp_server.clients[clientname]
2298
for clientname in set(client_settings) - set(old_client_settings):
2299
tcp_server.clients[clientname] = (client_class(name
2290
2305
if not tcp_server.clients:
2291
2306
logger.warning("No clients defined")
2399
2414
if attr not in exclude:
2400
2415
client_dict[attr] = getattr(client, attr)
2402
clients[client.name] = client_dict
2417
clients.append(client_dict)
2403
2418
del client_settings[client.name]["secret"]
2406
tempfd, tempname = tempfile.mkstemp(suffix=".pickle",
2409
(stored_state_path))
2410
with os.fdopen(tempfd, "wb") as stored_state:
2421
with os.fdopen(os.open(stored_state_path,
2422
os.O_CREAT|os.O_WRONLY|os.O_TRUNC,
2423
0600), "wb") as stored_state:
2411
2424
pickle.dump((clients, client_settings), stored_state)
2412
os.rename(tempname, stored_state_path)
2413
2425
except (IOError, OSError) as e:
2414
2426
logger.warning("Could not save persistent state: {0}"
2421
if e.errno not in set((errno.ENOENT, errno.EACCES,
2428
if e.errno not in (errno.ENOENT, errno.EACCES):
2425
2431
# Delete all clients, and settings from config
2426
2432
while tcp_server.clients: