def main():
log.startLogging(stdout)
from_address = config.get("alerts", "from")
to_address = config.get("alerts", "to")
subject_prefix = config.get("alerts", "subject")
alerts = Alerts(from_address, to_address, subject_prefix)
alerts.start()
alerts_export = AlertsExport(alerts)
pull_share_async(alerts_export, config.get("alerts", "export"))
reactor.run()
def main():
fo = log.startLogging(sys.stdout)
fo.formatTime = lambda x: datetime.datetime.fromtimestamp(x).strftime("%Y-%m-%d %H:%M:%S.%f")
engine = database.make_engine()
timeout = config.getint("ledger", "timeout")
ledger = Ledger(engine, timeout)
accountant_export = AccountantExport(ledger)
watchdog(config.get("watchdog", "ledger"))
router_share_async(accountant_export,
config.get("ledger", "accountant_export"))
reactor.run()
def main():
fo = log.startLogging(sys.stdout)
fo.formatTime = lambda x: datetime.datetime.fromtimestamp(x).strftime(
"%Y-%m-%d %H:%M:%S.%f")
engine = database.make_engine()
timeout = config.getint("ledger", "timeout")
ledger = Ledger(engine, timeout)
accountant_export = AccountantExport(ledger)
watchdog(config.get("watchdog", "ledger"))
router_share_async(accountant_export,
config.get("ledger", "accountant_export"))
reactor.run()
def main():
log.startLogging(sys.stdout)
session = database.make_session()
safe_price_subscriber = connect_subscriber(config.get("safe_price_forwarder", "zmq_backend_address"))
safe_price_subscriber.subscribe('')
sendmail = Sendmail(config.get("riskmanager", "from_email"))
accountant = AccountantProxy("dealer",
config.get("accountant", "riskmanager_export"),
config.getint("accountant", "riskmanager_export_base_port"))
riskmanager = RiskManager(session, sendmail, safe_price_subscriber, accountant)
reactor.run()
def main():
import sys
log.startLogging(sys.stdout)
subscriber = bind_subscriber(config.get("safe_price_forwarder", "zmq_frontend_address"))
publisher = bind_publisher(config.get("safe_price_forwarder", "zmq_backend_address"))
subscriber.subscribe("")
safe_prices = {}
def onPrice(*args):
update = json.loads(args[0])
log.msg("received update: %s" % update)
safe_prices.update(update)
publisher.publish(json.dumps(safe_prices), tag=b'')
subscriber.gotMessage = onPrice
reactor.run()
def main():
log.startLogging(sys.stdout)
session = database.make_session()
safe_price_subscriber = connect_subscriber(
config.get("safe_price_forwarder", "zmq_backend_address"))
safe_price_subscriber.subscribe('')
sendmail = Sendmail(config.get("riskmanager", "from_email"))
accountant = AccountantProxy(
"dealer", config.get("accountant", "riskmanager_export"),
config.getint("accountant", "riskmanager_export_base_port"))
riskmanager = RiskManager(session, sendmail, safe_price_subscriber,
accountant)
reactor.run()
def validator(full_uri):
uri, fragment = jsonschema.compat.urldefrag(full_uri)
schema_root = config.get("specs", "schema_root")
with open(os.path.join(schema_root, uri)) as schema_file:
top_schema = json.load(schema_file)
resolver = jsonschema.RefResolver("file://" + schema_root + "/", top_schema)
schema = resolver.resolve_fragment(top_schema, fragment)
jsonschema.Draft4Validator.check_schema(schema)
return jsonschema.Draft4Validator(schema, resolver=resolver)
def get_uri(**kwargs):
# If we are not root, override SQL username to be myself
my_user = getpass.getuser()
if my_user != 'root':
kwargs['username'] = my_user
uri = config.get("database", "uri", vars=kwargs)
if uri.split(":")[0] == "sqlite":
sqlalchemy.event.listen(Engine, "connect", set_sqlite_pragma)
return uri
def validator(full_uri):
uri, fragment = jsonschema.compat.urldefrag(full_uri)
schema_root = config.get("specs", "schema_root")
with open(os.path.join(schema_root, uri)) as schema_file:
top_schema = json.load(schema_file)
resolver = jsonschema.RefResolver("file://" + schema_root + "/",
top_schema)
schema = resolver.resolve_fragment(top_schema, fragment)
jsonschema.Draft4Validator.check_schema(schema)
return jsonschema.Draft4Validator(schema, resolver=resolver)
def get_uri(**kwargs):
# If we are not root, override SQL username to be myself
my_user = getpass.getuser()
if my_user != 'root':
kwargs['username'] = my_user
uri = config.get("database", "uri", vars=kwargs)
if uri.split(":")[0] == "sqlite":
sqlalchemy.event.listen(Engine, "connect", set_sqlite_pragma)
return uri
def main():
import sys
log.startLogging(sys.stdout)
subscriber = bind_subscriber(
config.get("safe_price_forwarder", "zmq_frontend_address"))
publisher = bind_publisher(
config.get("safe_price_forwarder", "zmq_backend_address"))
subscriber.subscribe("")
safe_prices = {}
def onPrice(*args):
update = json.loads(args[0])
log.msg("received update: %s" % update)
safe_prices.update(update)
publisher.publish(json.dumps(safe_prices), tag=b'')
subscriber.gotMessage = onPrice
reactor.run()
def __init__(self):
DatabasePlugin.__init__(self)
# noinspection PyUnresolvedReferences
dbpassword = config.get("database", "password")
if dbpassword:
dbpool = MyConnectionPool(config.get("database", "adapter"),
user=config.get("database", "username"),
password=dbpassword,
host=config.get("database", "host"),
port=config.get("database", "port"),
database=config.get("database", "dbname"))
else:
dbpool = MyConnectionPool(config.get("database", "adapter"),
user=config.get("database", "username"),
database=config.get("database", "dbname"))
self.dbpool = dbpool
def __init__(self):
DatabasePlugin.__init__(self)
# noinspection PyUnresolvedReferences
dbpassword = config.get("database", "password")
if dbpassword:
dbpool = MyConnectionPool(config.get("database", "adapter"),
user=config.get("database", "username"),
password=dbpassword,
host=config.get("database", "host"),
port=config.get("database", "port"),
database=config.get(
"database", "dbname"))
else:
dbpool = MyConnectionPool(config.get("database", "adapter"),
user=config.get("database", "username"),
database=config.get(
"database", "dbname"))
self.dbpool = dbpool
def main():
log.startLogging(sys.stdout)
monitors = ["administrator", "cashier", "ledger", "webserver"]
session = database.make_session()
proxy = AlertsProxy(config.get("alerts", "export"))
watchdogs = {}
for name in monitors:
watchdogs[name] = Watchdog(name, config.get("watchdog", name), proxy)
watchdogs[name].run()
num_accountants = config.getint("accountant", "num_procs")
for i in range(num_accountants):
name = "accountant_%d" % i
watchdogs[name] = Watchdog(name, config.get("watchdog", "accountant") % (config.getint("watchdog", "accountant_base_port") + i), proxy)
watchdogs[name].run()
engine_base_port = config.getint("watchdog", "engine_base_port")
for contract in session.query(models.Contract).filter_by(active=True).all():
if contract.contract_type != "cash":
watchdogs[contract.ticker] = Watchdog(contract.ticker, config.get("watchdog", "engine") % (engine_base_port +
int(contract.id)), proxy)
watchdogs[contract.ticker].run()
reactor.run()
import sys
import os
sys.path.append(os.path.join(os.path.dirname(os.path.abspath(__file__)),
"../server"))
sys.path.append(os.path.join(os.path.dirname(os.path.abspath(__file__)),
"../dist/config"))
from sputnik import database, models
from sputnik import txbitcoinrpc
import getpass
from sputnik import config
from twisted.internet import defer, reactor, task
db_session = database.make_session(username=getpass.getuser())
print config.get("cashier","bitcoin_conf")
conn = txbitcoinrpc.BitcoinRpc(config.get("cashier", "bitcoin_conf"))
#conn.walletpassphrase('pass',10, dont_raise=True)
count = 0
def go():
d = conn.keypoolrefill()
def get_addresses(result):
quantity = 100
dl = defer.DeferredList([conn.getnewaddress() for i in range(quantity)])
def add_addresses(results):
for r in results:
addr = r[1]['result']
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
#
from sqlalchemy.orm.exc import NoResultFound
import sys
import os
from sputnik.database import database, models
from sputnik.rpc import txbitcoinrpc
import getpass
from sputnik import config
from twisted.internet import defer, reactor, task
db_session = database.make_session(username=getpass.getuser())
print config.get("cashier", "bitcoin_conf")
conn = txbitcoinrpc.BitcoinRpc(config.get("cashier", "bitcoin_conf"))
#conn.walletpassphrase('pass',10, dont_raise=True)
count = 0
def go():
d = conn.keypoolrefill()
def get_addresses(result):
quantity = 100
dl = defer.DeferredList(
[conn.getnewaddress() for i in range(quantity)])
def __init__(self):
BackendPlugin.__init__(self)
self.proxy = accountant.AccountantProxy(
"dealer", config.get("accountant", "webserver_export"),
config.getint("accountant", "webserver_export_base_port"))
def __init__(self):
BackendPlugin.__init__(self)
self.proxy = ap(config.get("alerts", "export"))
def __init__(self):
BackendPlugin.__init__(self)
self.proxy = dealer_proxy_async(
config.get("administrator", "webserver_export"))
def init(self):
self.share = pull_share_async(
self, config.get("webserver", "accountant_export"))
class Cron:
def __init__(self, administrator):
self.administrator = administrator
def mail_statements(self, period):
return self.administrator.mail_statements(period)
def mtm_futures(self):
self.administrator.notify_expired()
return self.administrator.mtm_futures()
if __name__ == "__main__":
log.startLogging(sys.stdout)
administrator = dealer_proxy_async(config.get("administrator",
"cron_export"),
timeout=300)
cron = Cron(administrator)
# Parse arguments to figure out what to do
parser = argparse.ArgumentParser(
description="Run Sputnik jobs out of cron")
subparsers = parser.add_subparsers(
description="job that is to be performed",
metavar="command",
dest="command")
parser_mail_statements = subparsers.add_parser(
"mail_statements", help="Mail statements to users")
parser_mail_statements.add_argument("--period",
dest="period",
action="store",
def main():
log.startLogging(sys.stdout)
accountant = AccountantProxy(
"dealer", config.get("accountant", "cashier_export"),
config.getint("accountant", "cashier_export_base_port"))
session = db.make_session()
bitcoin_conf = config.get("cashier", "bitcoin_conf")
log.msg('connecting to bitcoin client')
bitcoinrpc = {'BTC': BitcoinRpc(bitcoin_conf, 1)}
compropago = Compropago(config.get("cashier", "compropago_key"))
cold_wallet_period = config.getint("cashier", "cold_wallet_period")
sendmail = Sendmail(config.get("administrator", "email"))
minimum_confirmations = config.getint("cashier", "minimum_confirmations")
alerts_proxy = AlertsProxy(config.get("alerts", "export"))
bitgo_config = {
'use_production': not config.getboolean("cashier", "testnet"),
'client_id': config.get("bitgo", "client_id"),
'client_secret': config.get("bitgo", "client_secret")
}
bitgo = BitGo(**bitgo_config)
bitgo_private_key_file = config.get("cashier", "bitgo_private_key_file")
cashier = Cashier(
session,
accountant,
bitcoinrpc,
compropago,
cold_wallet_period=cold_wallet_period,
sendmail=sendmail,
minimum_confirmations=minimum_confirmations,
alerts=alerts_proxy,
bitgo=bitgo,
bitgo_private_key_file=bitgo_private_key_file,
testnet=config.getboolean("cashier", "testnet"),
)
administrator_export = AdministratorExport(cashier)
accountant_export = AccountantExport(cashier)
webserver_export = WebserverExport(cashier)
watchdog(config.get("watchdog", "cashier"))
router_share_async(administrator_export,
config.get("cashier", "administrator_export"))
pull_share_async(accountant_export,
config.get("cashier", "accountant_export"))
router_share_async(webserver_export,
config.get("cashier", "webserver_export"))
public_server = Resource()
public_server.putChild('compropago', CompropagoHook(cashier))
private_server = Resource()
private_server.putChild('bitcoin', BitcoinNotify(cashier))
if config.getboolean("webserver", "ssl"):
key = config.get("webserver", "ssl_key")
cert = config.get("webserver", "ssl_cert")
cert_chain = config.get("webserver", "ssl_cert_chain")
contextFactory = ssl.ChainedOpenSSLContextFactory(key, cert_chain)
reactor.listenSSL(config.getint("cashier", "public_port"),
Site(public_server),
contextFactory,
interface=config.get("cashier", "public_interface"))
else:
reactor.listenTCP(config.getint("cashier", "public_port"),
Site(public_server),
interface=config.get("cashier", "public_interface"))
reactor.listenTCP(config.getint("cashier", "private_port"),
Site(private_server),
interface=config.get("cashier", "private_interface"))
reactor.run()
def main(pm):
from sputnik.webserver.router.twisted.wamp import RouterFactory
router_factory = RouterFactory()
router_factory.router = SputnikRouter
router_factory.authz_plugins = \
pm.services.get("sputnik.webserver.plugins.authz", [])
router_factory.schema_plugins = \
pm.services.get("sputnik.webserver.plugins.schema", [])
from sputnik.webserver.router.twisted.wamp import RouterSessionFactory
session_factory = RouterSessionFactory(router_factory)
session_factory.session = SputnikRouterSession
authn_stack = [("ip.IPFilter", "requisite"),
("anonymous.AnonymousLogin", "sufficient"),
("cookie.CookieLogin", "sufficient"),
("wampcra.WAMPCRALogin", "requisite"),
("totp.TOTPVerification", "requisite")]
session_factory.plugins = []
for plugin_name, flag in authn_stack:
path = "sputnik.webserver.plugins.authn." + plugin_name
session_factory.plugins.append((pm.plugins[path], flag))
rpc_plugins = pm.services.get("sputnik.webserver.plugins.rpc", [])
feeds_plugins = pm.services.get("sputnik.webserver.plugins.feeds", [])
svc_plugins = rpc_plugins + feeds_plugins
for plugin in svc_plugins:
component_session = plugin
component_session.config.realm = u"sputnik"
session_factory.add(component_session,
plugin.plugin_path.decode("ascii"), u"trusted")
uri = "ws://"
if config.getboolean("webserver", "ssl"):
uri = "wss://"
address = config.get("webserver", "ws_address")
port = config.getint("webserver", "ws_port")
uri += "%s:%s/" % (address, port)
from autobahn.twisted.websocket import WampWebSocketServerFactory
transport_factory = WampWebSocketServerFactory(session_factory,
uri, debug = False, debug_wamp = False)
transport_factory.setProtocolOptions(failByDrop = False)
watchdog(config.get("watchdog", "webserver"))
from twisted.web.server import Site
from autobahn.twisted.resource import WebSocketResource
root = Root()
ws_resource = WebSocketResource(transport_factory)
rest_resource = pm.plugins['sputnik.webserver.rest.RESTProxy']
root.putChild("ws", ws_resource)
root.putChild("api", rest_resource)
site = Site(root)
site.noisy = False
site.log = lambda _: None
from twisted.internet.endpoints import serverFromString, quoteStringArgument
if config.getboolean("webserver", "ssl"):
key = config.get("webserver", "ssl_key")
cert = config.get("webserver", "ssl_cert")
cert_chain = config.get("webserver", "ssl_cert_chain")
# TODO: Add dhparameters
# See https://twistedmatrix.com/documents/14.0.0/core/howto/endpoints.html
server = serverFromString(reactor, b"ssl:%d:privateKey=%s:certKey=%s:extraCertChain=%s:sslmethod=TLSv1_METHOD"
% (port,
quoteStringArgument(key),
quoteStringArgument(cert),
quoteStringArgument(cert_chain)))
else:
server = serverFromString(reactor, b"tcp:%d" % port)
server.listen(site)
def __init__(self):
BackendPlugin.__init__(self)
self.proxy = ap(config.get("alerts", "export"))
def main():
log.startLogging(sys.stdout)
accountant = AccountantProxy("dealer",
config.get("accountant", "cashier_export"),
config.getint("accountant", "cashier_export_base_port"))
session = db.make_session()
bitcoin_conf = config.get("cashier", "bitcoin_conf")
log.msg('connecting to bitcoin client')
bitcoinrpc = {'BTC': BitcoinRpc(bitcoin_conf, 1)}
compropago = Compropago(config.get("cashier", "compropago_key"))
cold_wallet_period = config.getint("cashier", "cold_wallet_period")
sendmail=Sendmail(config.get("administrator", "email"))
minimum_confirmations = config.getint("cashier", "minimum_confirmations")
alerts_proxy = AlertsProxy(config.get("alerts", "export"))
bitgo_config = {'use_production': not config.getboolean("cashier", "testnet"),
'client_id': config.get("bitgo", "client_id"),
'client_secret': config.get("bitgo", "client_secret")}
bitgo = BitGo(**bitgo_config)
bitgo_private_key_file = config.get("cashier", "bitgo_private_key_file")
cashier = Cashier(session, accountant, bitcoinrpc, compropago,
cold_wallet_period=cold_wallet_period,
sendmail=sendmail,
minimum_confirmations=minimum_confirmations,
alerts=alerts_proxy,
bitgo=bitgo,
bitgo_private_key_file=bitgo_private_key_file,
testnet=config.getboolean("cashier", "testnet"),
)
administrator_export = AdministratorExport(cashier)
accountant_export = AccountantExport(cashier)
webserver_export = WebserverExport(cashier)
watchdog(config.get("watchdog", "cashier"))
router_share_async(administrator_export,
config.get("cashier", "administrator_export"))
pull_share_async(accountant_export,
config.get("cashier", "accountant_export"))
router_share_async(webserver_export,
config.get("cashier", "webserver_export"))
public_server = Resource()
public_server.putChild('compropago', CompropagoHook(cashier))
private_server = Resource()
private_server.putChild('bitcoin', BitcoinNotify(cashier))
if config.getboolean("webserver", "ssl"):
key = config.get("webserver", "ssl_key")
cert = config.get("webserver", "ssl_cert")
cert_chain = config.get("webserver", "ssl_cert_chain")
contextFactory = ssl.ChainedOpenSSLContextFactory(key, cert_chain)
reactor.listenSSL(config.getint("cashier", "public_port"),
Site(public_server), contextFactory,
interface=config.get("cashier", "public_interface"))
else:
reactor.listenTCP(config.getint("cashier", "public_port"),
Site(public_server),
interface=config.get("cashier", "public_interface"))
reactor.listenTCP(config.getint("cashier", "private_port"), Site(private_server),
interface=config.get("cashier", "private_interface"))
reactor.run()
def init(self):
self.share = pull_share_async(self,
config.get("webserver", "engine_export"))
except Exception, e:
session.rollback()
log.err("Cannot determine ticker id. %s" % e)
log.err()
raise e
engine = Engine()
administrator_export = AdministratorExport(engine)
accountant_port = config.getint("engine", "accountant_base_port") + contract.id
administrator_port = config.getint("engine", "administrator_base_port") + contract.id
router_share_async(administrator_export, "tcp://127.0.0.1:%d" % administrator_port)
logger = LoggingListener(engine, contract)
acct = accountant.AccountantProxy("push",
config.get("accountant", "engine_export"),
config.getint("accountant", "engine_export_base_port"))
accountant_notifier = AccountantNotifier(engine, acct, contract)
webserver = push_proxy_async(config.get("webserver", "engine_export"))
webserver_notifier = WebserverNotifier(engine, webserver, contract)
watchdog(config.get("watchdog", "engine") %
(config.getint("watchdog", "engine_base_port") + contract.id))
forwarder = connect_publisher(config.get("safe_price_forwarder", "zmq_frontend_address"))
safe_price_notifier = SafePriceNotifier(session, engine, acct, webserver, forwarder, contract)
accountant_export = AccountantExport(engine, safe_price_notifier, webserver_notifier)
router_share_async(accountant_export, "tcp://127.0.0.1:%d" % accountant_port)
def __init__(self):
BackendPlugin.__init__(self)
self.proxy = dealer_proxy_async(
config.get("cashier", "webserver_export"))
def run(pm, reactor):
from sputnik.webserver.router.twisted.wamp import RouterFactory
router_factory = RouterFactory()
router_factory.router = SputnikRouter
router_factory.authz_plugins = \
pm.services.get("sputnik.webserver.plugins.authz", [])
router_factory.schema_plugins = \
pm.services.get("sputnik.webserver.plugins.schema", [])
from sputnik.webserver.router.twisted.wamp import RouterSessionFactory
session_factory = RouterSessionFactory(router_factory)
session_factory.session = SputnikRouterSession
authn_stack = [("ip.IPFilter", "requisite"),
("anonymous.AnonymousLogin", "sufficient"),
("cookie.CookieLogin", "sufficient"),
("wampcra.WAMPCRALogin", "requisite"),
("totp.TOTPVerification", "requisite")]
session_factory.plugins = []
for plugin_name, flag in authn_stack:
path = "sputnik.webserver.plugins.authn." + plugin_name
session_factory.plugins.append((pm.plugins[path], flag))
rpc_plugins = pm.services.get("sputnik.webserver.plugins.rpc", [])
feeds_plugins = pm.services.get("sputnik.webserver.plugins.feeds", [])
svc_plugins = rpc_plugins + feeds_plugins
for plugin in svc_plugins:
component_session = plugin
component_session.config.realm = u"sputnik"
session_factory.add(component_session,
plugin.plugin_path.decode("ascii"), u"trusted")
uri = "ws://"
if config.getboolean("webserver", "ssl"):
uri = "wss://"
address = config.get("webserver", "ws_address")
port = config.getint("webserver", "ws_port")
uri += "%s:%s/" % (address, port)
from autobahn.twisted.websocket import WampWebSocketServerFactory
transport_factory = WampWebSocketServerFactory(session_factory,
uri,
debug=False,
debug_wamp=False)
transport_factory.setProtocolOptions(failByDrop=False)
watchdog(config.get("watchdog", "webserver"))
from twisted.web.server import Site
from autobahn.twisted.resource import WebSocketResource
root = Root()
ws_resource = WebSocketResource(transport_factory)
rest_resource = pm.plugins['sputnik.webserver.rest.RESTProxy']
root.putChild("ws", ws_resource)
root.putChild("api", rest_resource)
site = Site(root)
site.noisy = False
site.log = lambda _: None
from twisted.internet.endpoints import serverFromString, quoteStringArgument
if config.getboolean("webserver", "ssl"):
key = config.get("webserver", "ssl_key")
cert = config.get("webserver", "ssl_cert")
cert_chain = config.get("webserver", "ssl_cert_chain")
# TODO: Add dhparameters
# See https://twistedmatrix.com/documents/14.0.0/core/howto/endpoints.html
server = serverFromString(
reactor,
b"ssl:%d:privateKey=%s:certKey=%s:extraCertChain=%s:sslmethod=TLSv1_METHOD"
% (port, quoteStringArgument(key), quoteStringArgument(cert),
quoteStringArgument(cert_chain)))
else:
server = serverFromString(reactor, b"tcp:%d" % port)
server.listen(site)
def __init__(self):
BackendPlugin.__init__(self)
self.proxy = accountant.AccountantProxy("dealer",
config.get("accountant", "webserver_export"),
config.getint("accountant", "webserver_export_base_port"))
def init(self):
self.market = self.require("sputnik.webserver.plugins.rpc.market.MarketService")
self.share = router_share_async(self,
config.get("webserver", "administrator_export"))
def init(self):
self.share = pull_share_async(self,
config.get("webserver", "accountant_export"))
def init(self):
self.share = pull_share_async(self,
config.get("webserver", "engine_export"))
class Cron:
def __init__(self, administrator):
self.administrator = administrator
def mail_statements(self, period):
return self.administrator.mail_statements(period)
def mtm_futures(self):
self.administrator.notify_expired()
return self.administrator.mtm_futures()
if __name__ == "__main__":
log.startLogging(sys.stdout)
administrator = dealer_proxy_async(config.get("administrator", "cron_export"), timeout=300)
cron = Cron(administrator)
# Parse arguments to figure out what to do
parser = argparse.ArgumentParser(description="Run Sputnik jobs out of cron")
subparsers = parser.add_subparsers(description="job that is to be performed", metavar="command", dest="command")
parser_mail_statements = subparsers.add_parser("mail_statements", help="Mail statements to users")
parser_mail_statements.add_argument("--period", dest="period", action="store", default="monthly",
help="Statement period", choices=["monthly", "weekly", "daily"])
parser_mtm_futures = subparsers.add_parser("mtm_futures", help="mark futures contracts to market")
kwargs = vars(parser.parse_args())
command = kwargs["command"]
del kwargs["command"]
method = getattr(cron, command)