def makeBroadcasterService(endpoint, local_ivo, test_interval, whitelist):
"""Create a VOEvent receiver service.
The receiver service accepts VOEvent messages submitted to the broker by
authors.
Parameters
----------
endpoint : implements `twisted.internet.interfaces.IStreamServerEndpoint`
The endpoint to which the service will listen.
local_ivo : `str`
IVOA identifier for the subscriber.
test_interval: `int`
The interval in seconds between test events to be broadcast. If ``0``,
no test events will be sent.
whitelist : `list` of `ipaddress.IPv4Network` or `ipaddress.IPv6Network`
Only addresses which fall in a network included in the whitelist are
permitted to subscribe.
"""
factory = VOEventBroadcasterFactory(local_ivo, test_interval)
if log.LEVEL >= log.Levels.INFO:
factory.noisy = False
whitelisting_factory = WhitelistingFactory(factory, whitelist,
"subscription")
if log.LEVEL >= log.Levels.INFO:
whitelisting_factory.noisy = False
service = StreamServerEndpointService(endpoint, whitelisting_factory)
# Shut down, rather than simply logging an error, if we can't bind.
service._raiseSynchronously = True
return service
def setup(self):
storage.init(self.config['database'])
cert = OpenPGPCertificate(open(self.config['pgp_cert']).read())
key = OpenPGPPrivateKey(open(self.config['pgp_key']).read())
cred = auth.OpenPGPKontalkCredentials(cert, key,
str(self.config['pgp_keyring']))
cred.verify_peer = True
ring = keyring.Keyring(storage.MySQLNetworkStorage(),
self.config['fingerprint'], self.network,
self.servername)
self.service = NetService(self.config, self, ring, cred)
self.service.logTraffic = self.logTraffic
self.sfactory = XMPPNetServerFactory(self.service)
self.sfactory.logTraffic = self.logTraffic
tls_svc = StreamServerEndpointService(
tls.TLSServerEndpoint(reactor=reactor,
port=int(self.config['bind'][1]),
interface=str(self.config['bind'][0]),
credentials=cred), self.sfactory)
tls_svc._raiseSynchronously = True
return tls_svc
def __init__(self, reactor, cluster_state, configuration_service, endpoint,
context_factory):
"""
:param reactor: See ``ControlServiceLocator.__init__``.
:param ClusterStateService cluster_state: Object that records known
cluster state.
:param ConfigurationPersistenceService configuration_service:
Persistence service for desired cluster configuration.
:param endpoint: Endpoint to listen on.
:param context_factory: TLS context factory.
"""
self.connections = set()
self._current_command = {}
self.cluster_state = cluster_state
self.configuration_service = configuration_service
self.endpoint_service = StreamServerEndpointService(
endpoint,
TLSMemoryBIOFactory(
context_factory,
False,
ServerFactory.forProtocol(lambda: ControlAMP(reactor, self))
)
)
# When configuration changes, notify all connected clients:
self.configuration_service.register(
lambda: self._send_state_to_connections(self.connections))
def service(description, factory, reactor=None):
"""
Return the service corresponding to a description.
@param description: The description of the listening port, in the syntax
described by L{twisted.internet.endpoints.serverFromString}.
@type description: C{str}
@param factory: The protocol factory which will build protocols for
connections to this service.
@type factory: L{twisted.internet.interfaces.IProtocolFactory}
@rtype: C{twisted.application.service.IService}
@return: the service corresponding to a description of a reliable stream
server.
@see: L{twisted.internet.endpoints.serverFromString}
"""
if reactor is None:
from twisted.internet import reactor
svc = StreamServerEndpointService(
endpoints.serverFromString(reactor, description), factory)
svc._raiseSynchronously = True
return svc
def setup(self):
# initialize storage
# doing it here because it's needed by the server factory
storage.init(self.config['database'])
self.presencedb = storage.MySQLPresenceStorage()
# TODO from configuration
stor_class = self.config['storage']['class']
klass = getattr(storage, stor_class)
self.storage = klass(*self.config['storage']['params'])
self.keyring = keyring.Keyring(storage.MySQLNetworkStorage(), self.config['fingerprint'], self.network, self.servername, disable_cache=True)
token_auth = auth.AuthKontalkChecker(self.config['fingerprint'], self.keyring)
# upload endpoint
portal = Portal(FileUploadRealm(self), [token_auth])
resource = HTTPSAuthSessionWrapper(portal, auth.KontalkCertificate)
self.putChild('upload', resource)
# download endpoint
portal = Portal(FileDownloadRealm(self), [token_auth])
resource = HTTPSAuthSessionWrapper(portal, auth.KontalkCertificate)
self.putChild('download', resource)
# http service
self.factory = server.Site(self)
sslFactory = xmlstream2.MyOpenSSLCertificateOptions(self.config['ssl_key'], self.config['ssl_cert'], self._sslVerify)
endpoint = SSL4ServerEndpoint(reactor, self.config['bind'][1], sslFactory, interface=str(self.config['bind'][0]))
svc = StreamServerEndpointService(endpoint, self.factory)
svc._raiseSynchronously = True
return svc
def setup(self):
# initialize storage
# doing it here because it's needed by the server factory
storage.init(self.config['database'])
# TODO from configuration
stor_class = self.config['storage']['class']
klass = getattr(storage, stor_class)
self.storage = klass(*self.config['storage']['params'])
self.keyring = keyring.Keyring(storage.MySQLNetworkStorage(), self.config['fingerprint'], self.network, self.servername, disable_cache=True)
token_auth = auth.AuthKontalkChecker(self.config['fingerprint'], self.keyring)
# upload endpoint
portal = Portal(FileUploadRealm(self), [token_auth])
resource = HTTPSAuthSessionWrapper(portal, auth.KontalkCertificate)
self.putChild('upload', resource)
# download endpoint
portal = Portal(FileDownloadRealm(self), [token_auth])
resource = HTTPSAuthSessionWrapper(portal, auth.KontalkCertificate)
self.putChild('download', resource)
# http service
self.factory = server.Site(self)
sslFactory = MyOpenSSLCertificateOptions(self.config['ssl_key'], self.config['ssl_cert'], self._sslVerify)
endpoint = SSL4ServerEndpoint(reactor, self.config['bind'][1], sslFactory, interface=str(self.config['bind'][0]))
svc = StreamServerEndpointService(endpoint, self.factory)
svc._raiseSynchronously = True
return svc
class WireServer(object):
"""
An AMP server for the remote end of a L{WireWorker}.
Construct me with an endpoint description string and either an
instance or the fully qualified name of a L{WireWorkerUniverse}
subclass.
@ivar service: A C{StreamServerEndpointService} from
C{twisted.application.internet} that you can include in the
C{application} of a C{.tac} file, thus accepting connections
to run tasks.
"""
triggerID = None
def __init__(self, description, wwu):
if isinstance(wwu, str):
klass = reflect.namedObject(wwu)
wwu = klass(self)
WireWorkerUniverse.check(wwu)
self.factory = Factory()
self.factory.protocol = lambda: amp.AMP(locator=wwu)
endpoint = endpoints.serverFromString(reactor, description)
self.service = StreamServerEndpointService(endpoint, self.factory)
def start(self):
self.service.startService()
self.triggerID = reactor.addSystemEventTrigger('before', 'shutdown',
self.stop)
def stop(self):
if self.triggerID is None:
return defer.succeed(None)
self.triggerID = None
return self.service.stopService()
def __init__(self, reactor, cluster_state, configuration_service, endpoint,
context_factory):
"""
:param reactor: See ``ControlServiceLocator.__init__``.
:param ClusterStateService cluster_state: Object that records known
cluster state.
:param ConfigurationPersistenceService configuration_service:
Persistence service for desired cluster configuration.
:param endpoint: Endpoint to listen on.
:param context_factory: TLS context factory.
"""
self._connections = set()
self._reactor = reactor
self._connections_pending_update = set()
self._current_pending_update_delayed_call = None
self._current_command = {}
self._last_received_generation = defaultdict(
lambda: _ConfigAndStateGeneration())
self._configuration_generation_tracker = GenerationTracker(100)
self._state_generation_tracker = GenerationTracker(100)
self.cluster_state = cluster_state
self.configuration_service = configuration_service
self.endpoint_service = StreamServerEndpointService(
endpoint,
TLSMemoryBIOFactory(
context_factory, False,
ServerFactory.forProtocol(lambda: ControlAMP(reactor, self))))
# When configuration changes, notify all connected clients:
self.configuration_service.register(self._schedule_broadcast_update)
def service(
description: str,
factory: interfaces.IProtocolFactory,
reactor: Optional[interfaces.IReactorCore] = None,
) -> StreamServerEndpointService:
"""
Return the service corresponding to a description.
@param description: The description of the listening port, in the syntax
described by L{twisted.internet.endpoints.serverFromString}.
@type description: C{str}
@param factory: The protocol factory which will build protocols for
connections to this service.
@type factory: L{twisted.internet.interfaces.IProtocolFactory}
@rtype: C{twisted.application.service.IService}
@return: the service corresponding to a description of a reliable stream
server.
@see: L{twisted.internet.endpoints.serverFromString}
"""
if reactor is None:
reactor = _getReactor()
svc = StreamServerEndpointService(
endpoints.serverFromString(reactor, description), factory)
svc._raiseSynchronously = True
return svc
def _makeHTTPService(self):
"""Create the HTTP service."""
from provisioningserver.rackdservices.http import HTTPResource
from twisted.application.internet import StreamServerEndpointService
from twisted.internet.endpoints import AdoptedStreamServerEndpoint
from provisioningserver.utils.twisted import SiteNoLog
port = 5249
s = socket.socket(socket.AF_INET6, socket.SOCK_STREAM)
s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
try:
s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEPORT, 1)
except socket_error as e:
if e.errno != ENOPROTOOPT:
raise e
s.bind(('::', port))
# Use a backlog of 50, which seems to be fairly common.
s.listen(50)
# Adopt this socket into Twisted's reactor.
site_endpoint = AdoptedStreamServerEndpoint(reactor, s.fileno(),
s.family)
site_endpoint.port = port # Make it easy to get the port number.
site_endpoint.socket = s # Prevent garbage collection.
http_service = StreamServerEndpointService(site_endpoint,
SiteNoLog(HTTPResource()))
http_service.setName("http_service")
return http_service
def makeBroadcasterService(endpoint, local_ivo, test_interval, whitelist):
"""Create a VOEvent receiver service.
The receiver service accepts VOEvent messages submitted to the broker by
authors.
Parameters
----------
endpoint : implements `twisted.internet.interfaces.IStreamServerEndpoint`
The endpoint to which the service will listen.
local_ivo : `str`
IVOA identifier for the subscriber.
test_interval: `int`
The interval in seconds between test events to be broadcast. If ``0``,
no test events will be sent.
whitelist : `list` of `ipaddress.IPv4Network` or `ipaddress.IPv6Network`
Only addresses which fall in a network included in the whitelist are
permitted to subscribe.
"""
factory = VOEventBroadcasterFactory(local_ivo, test_interval)
if log.LEVEL >= log.Levels.INFO:
factory.noisy = False
whitelisting_factory = WhitelistingFactory(factory, whitelist,
"subscription")
if log.LEVEL >= log.Levels.INFO:
whitelisting_factory.noisy = False
service = StreamServerEndpointService(endpoint, whitelisting_factory)
# Shut down, rather than simply logging an error, if we can't bind.
service._raiseSynchronously = True
return service
def makeService(options):
"""
Construct a Pantheon SSH service.
"""
from twisted.internet import reactor
factory = SSHFactory()
key = options["host-key"]
factory.privateKeys = {key.sshType(): key}
factory.publicKeys = {key.sshType(): key.public()}
realm = PantheonRealm(
reactor,
options['auth-host'], options['auth-port'],
options['client-key'].path, options['client-cert'].path)
checker = PantheonHTTPChecker(
reactor,
options['auth-host'], options['auth-port'],
options['client-key'].path, options['client-cert'].path)
factory.portal = Portal(realm, [checker])
service = MultiService()
for endpoint in options["listen"]:
child = StreamServerEndpointService(endpoint, factory)
child.setServiceParent(service)
return service
def setup(self):
# initialize storage
# doing it here because it's needed by the c2s server factory
storage.init(self.config['database'])
self.presencedb = storage.MySQLPresenceStorage()
try:
stanza_expire = self.config['stanza_expire']
except KeyError:
stanza_expire = 0
self.stanzadb = storage.MySQLStanzaStorage(stanza_expire)
try:
validation_expire = self.config['registration']['expire']
except KeyError:
validation_expire = 0
self.validationdb = storage.MySQLUserValidationStorage(validation_expire)
self.keyring = keyring.Keyring(storage.MySQLNetworkStorage(), self.config['fingerprint'], self.network, self.servername)
authrealm = auth.SASLRealm("Kontalk")
authportal = portal.Portal(authrealm, [auth.AuthKontalkChecker(self.config['fingerprint'], self.keyring, self._verify_fingerprint)])
self.sfactory = XMPPServerFactory(authportal, self, self.network, self.servername)
self.sfactory.logTraffic = self.config['debug']
if 'ssl_key' in self.config and 'ssl_cert' in self.config:
self.sfactory.loadPEM(self.config['ssl_cert'], self.config['ssl_key'])
services = []
if 'plain' in self.config['bind']:
plain_svc = strports.service('tcp:' + str(self.config['bind']['plain'][1]) +
':interface=' + str(self.config['bind']['plain'][0]), self.sfactory)
services.append(plain_svc)
if 'ssl' in self.config['bind']:
ssl_svc = internet.SSLServer(port=int(self.config['bind']['ssl'][1]),
interface=str(self.config['bind']['ssl'][0]),
factory=self.sfactory,
contextFactory=self.sfactory.getSSLContext())
services.append(ssl_svc)
if 'tls' in self.config['bind']:
cert = OpenPGPCertificate(open(self.config['pgp_cert']).read())
key = OpenPGPPrivateKey(open(self.config['pgp_key']).read())
cred = auth.OpenPGPKontalkCredentials(cert, key, str(self.config['pgp_keyring']))
cred.verify_peer = True
tls_svc = StreamServerEndpointService(
tls.TLSServerEndpoint(reactor=reactor,
port=int(self.config['bind']['tls'][1]),
interface=str(self.config['bind']['tls'][0]),
credentials=cred),
self.sfactory)
tls_svc._raiseSynchronously = True
services.append(tls_svc)
return services
def setUp(self):
"""
Construct a stub server, a stub factory, and a
L{StreamServerEndpointService} to test.
"""
self.fakeServer = FakeServer()
self.factory = Factory()
self.svc = StreamServerEndpointService(self.fakeServer, self.factory)
def __init__(self, description, wwu):
if isinstance(wwu, str):
klass = reflect.namedObject(wwu)
wwu = klass(self)
WireWorkerUniverse.check(wwu)
self.factory = Factory()
self.factory.protocol = lambda: amp.AMP(locator=wwu)
endpoint = endpoints.serverFromString(reactor, description)
self.service = StreamServerEndpointService(endpoint, self.factory)
def create_prometheus_exporter_service(reactor, port):
"""Return a service exposing prometheus metrics on the specified port."""
root = Resource()
root.putChild(b"metrics", PrometheusMetricsResource(PROMETHEUS_METRICS))
site = Site(root, logFormatter=reducedWebLogFormatter)
endpoint = TCP6ServerEndpoint(reactor, port)
service = StreamServerEndpointService(endpoint, site)
service.setName("prometheus-exporter")
return service
def s2(result, self=self): if self._stopDeferred is None: # Fail return self._stopCall = None self._stopDeferred = None # Inside Service.stopService(self)
def __init__(self, device):
'''
Initialization of UPnP server
'''
self.upnp = UPnP(device)
self.device = device
self.upnp.parent = self
self.site = server.Site(self.upnp)
edp = endpoints.serverFromString(reactor, "tcp:0")
StreamServerEndpointService.__init__(self, edp, self.site)
self._choosenPort = None
def __init__(self, res):
'''
Initialization of UPnP server
'''
self.resource = res
# self.resource = static.File(
# '/home/babe/Projets/eclipse/onDemand/src/web/')
edp = endpoints.serverFromString(reactor, b'tcp:0')
StreamServerEndpointService.__init__(self, edp,
server.Site(self.resource))
self._choosenPort = None
def __init__(self, res):
'''
Initialization of UPnP server
'''
self.resource = res
# self.resource = static.File(
# '/home/babe/Projets/eclipse/onDemand/src/web/')
edp = endpoints.serverFromString(reactor, b'tcp:0')
StreamServerEndpointService.__init__(
self, edp, server.Site(self.resource))
self._choosenPort = None
def __init__(self, device):
'''
Initialization of UPnP server
'''
self.upnp = UPnP(device)
self.device = device
self.upnp.parent = self
self.site = server.Site(self.upnp)
edp = endpoints.serverFromString(reactor, "tcp:0")
StreamServerEndpointService.__init__(self, edp, self.site)
self._choosenPort = None
def startService(self):
MultiService.startService(self)
staticPath = FilePath(__file__).sibling("static")
root = NoListDirFile(staticPath.path)
root.putChild('api',
SockJSResource(Factory.forProtocol(DaneDoctorProtocol)))
webService = StreamServerEndpointService(
serverFromString(self._reactor, "tcp:8080"), Site(root))
webService.setServiceParent(self)
def start_site(reactor, site, secure_ports, insecure_ports, redirect_to_port):
parent = MultiService()
for secure in secure_ports:
StreamServerEndpointService(secure, site).setServiceParent(parent)
if insecure_ports:
redirector = make_redirector_site(redirect_to_port)
for insecure in insecure_ports:
StreamServerEndpointService(insecure, redirector).setServiceParent(parent)
parent.privilegedStartService()
parent.startService()
def __init__(self, config):
SimarglClient.__init__(self, config)
from twisted.internet import reactor
self.factory = SimarglServerFactory(self)
StreamServerEndpointService.__init__(
self,
TCP4ServerEndpoint(reactor,
int(config.get('port', 9666)),
interface=config.get('host')), self.factory)
def __init__(self, config):
SimarglClient.__init__(self, config)
from twisted.internet import reactor
self.factory = SimarglServerFactory(self)
StreamServerEndpointService.__init__(
self,
TCP4ServerEndpoint(reactor, int(config.get('port', 9666)), interface=config.get('host')),
self.factory
)
class GoApiWorker(BaseWorker):
class CONFIG_CLASS(BaseWorker.CONFIG_CLASS):
worker_name = ConfigText(
"Name of this Go API worker.", required=True, static=True)
twisted_endpoint = ConfigServerEndpoint(
"Twisted endpoint to listen on.", required=True, static=True)
web_path = ConfigText(
"The path to serve this resource on.", required=True, static=True)
health_path = ConfigText(
"The path to server the health resource on.", default='/health/',
static=True)
redis_manager = ConfigDict(
"Redis client configuration.", default={}, static=True)
riak_manager = ConfigDict(
"Riak client configuration.", default={}, static=True)
_web_service = None
def _rpc_resource_for_user(self, username):
rpc = GoApiServer(username, self.vumi_api)
addIntrospection(rpc)
return rpc
def get_health_response(self):
return "OK"
@inlineCallbacks
def setup_worker(self):
config = self.get_static_config()
self.vumi_api = yield VumiApi.from_config_async({
'redis_manager': config.redis_manager,
'riak_manager': config.riak_manager,
})
self.realm = GoUserRealm(self._rpc_resource_for_user)
site = build_web_site({
config.web_path: GoUserAuthSessionWrapper(
self.realm, self.vumi_api),
config.health_path: httprpc.HttpRpcHealthResource(self),
})
self._web_service = StreamServerEndpointService(
config.twisted_endpoint, site)
self._web_service.startService()
@inlineCallbacks
def teardown_worker(self):
if self._web_service is not None:
yield self._web_service.stopService()
def setup_connectors(self):
pass
def _build_api_service(self):
"""
Once called, the resource is initialized. Any calls to self._add_resource() should be done before calling this fn.
:return:
"""
wsgi_app = self.anchore_service.get_api_application()
wsgi_site = wsgi.WSGIResource(reactor, reactor.getThreadPool(), application=wsgi_app)
self._add_resource(self.anchore_service.__service_api_version__.encode('utf-8'), wsgi_site)
self.root_resource = web.resource.Resource()
# Add nodes
for name, resource in self.resource_nodes.items():
self.root_resource.putChild(name, resource)
# this will rewrite any calls that do not have an explicit version to the base path before being processed by flask
self._api_version_bytes = self.anchore_service.__service_api_version__.encode('utf-8') # This is optimization
# Handle the auth vs non-auth child resources to not consume a path element
root = rewrite.RewriterResource(self.root_resource, self._default_version_rewrite)
# Build the main site server
site = server.Site(root)
listen = self.anchore_service.configuration['listen']
if str(self.anchore_service.configuration.get('ssl_enable', '')).lower() == 'true':
try:
ssl_data = {
'ssl_cert': _load_ssl_cert(self.anchore_service.configuration['ssl_cert']) if 'ssl_cert' in self.anchore_service.configuration else None,
'ssl_chain': _load_ssl_cert(self.anchore_service.configuration['ssl_chain']) if 'ssl_chain' in self.anchore_service.configuration else None,
'ssl_key': _load_ssl_key(self.anchore_service.configuration['ssl_key']) if 'ssl_key' in self.anchore_service.configuration else None
}
if ssl_data['ssl_chain']:
sfact = ssl.CertificateOptions(privateKey=ssl_data['ssl_key'], certificate=ssl_data['ssl_cert'],
extraCertChain=[ssl_data['ssl_chain']])
else:
sfact = ssl.CertificateOptions(privateKey=ssl_data['ssl_key'], certificate=ssl_data['ssl_cert'])
endpoint = SSL4ServerEndpoint(reactor=reactor, port=int(self.anchore_service.configuration['port']), sslContextFactory=sfact, interface=listen)
except Exception as err:
raise err
else:
endpoint = TCP4ServerEndpoint(reactor=reactor, port=int(self.anchore_service.configuration['port']), interface=listen)
ret_svc = StreamServerEndpointService(endpoint=endpoint, factory=site)
ret_svc.setName(self.anchore_service.name)
return ret_svc
def startService(self):
MultiService.startService(self)
staticPath = FilePath(__file__).sibling("static")
root = NoListDirFile(staticPath.path)
root.putChild('api', SockJSResource(
Factory.forProtocol(DaneDoctorProtocol))
)
webService = StreamServerEndpointService(
serverFromString(self._reactor, "tcp:8080"),
Site(root)
)
webService.setServiceParent(self)
def setup_worker(self):
config = self.get_static_config()
self.vumi_api = yield VumiApi.from_config_async({
'redis_manager': config.redis_manager,
'riak_manager': config.riak_manager,
})
self.realm = GoUserRealm(self._rpc_resource_for_user)
site = build_web_site({
config.web_path: GoUserAuthSessionWrapper(
self.realm, self.vumi_api),
config.health_path: httprpc.HttpRpcHealthResource(self),
})
self._web_service = StreamServerEndpointService(
config.twisted_endpoint, site)
self._web_service.startService()
def makeService(config, channel_db="relay.sqlite", reactor=reactor):
increase_rlimits()
parent = MultiService()
channel_db = create_or_upgrade_channel_db(config["channel-db"])
usage_db = create_or_upgrade_usage_db(config["usage-db"])
log_file = (os.fdopen(int(config["log-fd"]), "w")
if config["log-fd"] is not None
else None)
server = make_server(channel_db,
allow_list=config["allow-list"],
advertise_version=config["advertise-version"],
signal_error=config["signal-error"],
blur_usage=config["blur-usage"],
usage_db=usage_db,
log_file=log_file,
)
server.setServiceParent(parent)
rebooted = time.time()
def expire():
now = time.time()
old = now - CHANNEL_EXPIRATION_TIME
server.prune_all_apps(now, old)
server.dump_stats(now, rebooted=rebooted)
TimerService(EXPIRATION_CHECK_PERIOD, expire).setServiceParent(parent)
log_requests = config["blur-usage"] is None
site = make_web_server(server, log_requests,
config["websocket-protocol-options"])
ep = endpoints.serverFromString(reactor, config["port"]) # to listen
StreamServerEndpointService(ep, site).setServiceParent(parent)
log.msg("websocket listening on ws://HOSTNAME:PORT/v1")
return parent
def makeService(options):
"""
Make a new subscription manager ``IService``.
"""
# Boo global reactor
# https://twistedmatrix.com/trac/ticket/9063
from twisted.internet import reactor
parent = MultiService()
eliot_logging_service(
reactor,
options.get("destinations", []),
).setServiceParent(parent)
make_dirs(options["state-path"].path)
site = Site(make_resource(
options["state-path"],
options["domain"].decode("ascii"),
options["bucket-name"].decode("ascii"),
))
StreamServerEndpointService(
serverFromString(reactor, options["listen-address"]),
site,
).setServiceParent(parent)
return parent
def __init__(self, reactor, cluster_state, configuration_service, endpoint,
context_factory):
"""
:param reactor: See ``ControlServiceLocator.__init__``.
:param ClusterStateService cluster_state: Object that records known
cluster state.
:param ConfigurationPersistenceService configuration_service:
Persistence service for desired cluster configuration.
:param endpoint: Endpoint to listen on.
:param context_factory: TLS context factory.
"""
self.connections = set()
self._reactor = reactor
self._connections_pending_update = set()
self._current_pending_update_delayed_call = None
self._current_command = {}
self.cluster_state = cluster_state
self.configuration_service = configuration_service
self.endpoint_service = StreamServerEndpointService(
endpoint,
TLSMemoryBIOFactory(
context_factory,
False,
ServerFactory.forProtocol(lambda: ControlAMP(reactor, self))
)
)
# When configuration changes, notify all connected clients:
self.configuration_service.register(self._schedule_broadcast_update)
def main(self, reactor, options):
# Many places in both twisted.web and Klein are unhappy with
# listening on Unix socket, e.g.
# https://twistedmatrix.com/trac/ticket/5406 "fix" that by
# pretending we have a port number. Yes, I feel guilty.
UNIXAddress.port = 0
# We can use /etc/flocker/agent.yml and /etc/flocker/node.crt to load
# some information we need:
agent_config = get_configuration(options)
control_host = agent_config['control-service']['hostname']
node_id = agent_config['node-credential'].uuid
certificates_path = options["agent-config"].parent()
control_port = options["rest-api-port"]
flocker_client = FlockerClient(reactor, control_host, control_port,
certificates_path.child(b"cluster.crt"),
certificates_path.child(b"plugin.crt"),
certificates_path.child(b"plugin.key"))
self._create_listening_directory(PLUGIN_PATH.parent())
endpoint = serverFromString(
reactor, "unix:{}:mode=600".format(PLUGIN_PATH.path))
service = StreamServerEndpointService(endpoint, Site(
VolumePlugin(reactor, flocker_client, node_id).app.resource()))
return main_for_service(reactor, service)
def create_api_service(persistence_service, cluster_state_service, endpoint,
context_factory, clock=reactor):
"""
Create a Twisted Service that serves the API on the given endpoint.
:param ConfigurationPersistenceService persistence_service: Service
for retrieving and setting desired configuration.
:param ClusterStateService cluster_state_service: Service that
knows about the current state of the cluster.
:param endpoint: Twisted endpoint to listen on.
:param context_factory: TLS context factory.
:param IReactorTime clock: The clock to use for time. By default
global reactor.
:return: Service that will listen on the endpoint using HTTP API server.
"""
api_root = Resource()
user = ConfigurationAPIUserV1(persistence_service, cluster_state_service,
clock)
api_root.putChild('v1', user.app.resource())
api_root._v1_user = user # For unit testing purposes, alas
return StreamServerEndpointService(
endpoint,
TLSMemoryBIOFactory(
context_factory,
False,
Site(api_root)
)
)
def makeService(options):
from twisted.internet import reactor
assert not (options["config"] and options["demo"])
if options["demo"]:
app = DownloadEFolder.create_demo(reactor, Logger(log))
else:
queue = DeferredQueue()
app = DownloadEFolder.from_config(
reactor,
Logger(log),
queue,
options["config"],
)
if options.subCommand == "create-database":
return CreateDatabaseService(reactor, app)
if not options["demo"]:
app.start_fetch_document_types()
app.queue_pending_work()
service = MultiService()
endpoint = serverFromString(reactor, "tcp:8080:interface=127.0.0.1")
StreamServerEndpointService(
endpoint,
Site(app.app.resource(), logPath="/dev/null"),
).setServiceParent(service)
if not options["demo"]:
for _ in xrange(8):
DeferredQueueConsumerService(
queue, lambda item: item()).setServiceParent(service)
return service
def __init__(self, device):
'''
Initialization of UPnP server
'''
self.upnp = UPnP(device)
self.devices = [device]
device.parent = self
self.upnp.parent = self
self.site = server.Site(self.upnp)
edp = endpoints.serverFromString(reactor, "tcp:0")
StreamServerEndpointService.__init__(self, edp, self.site)
self._choosenPort = None
for service in device.services:
service.control_resource = TwistedWebResource(service.app)
service.event_resource = ServiceEventResource(service)
service.resource = ServiceResource(service)
def magic_folder_web_service(reactor, webport, get_magic_folder, get_auth_token):
root = Resource()
root.putChild(b"api", MagicFolderWebApi(get_magic_folder, get_auth_token))
return StreamServerEndpointService(
serverFromString(reactor, webport),
Site(root),
)
def __init__(self, device):
'''
Initialization of UPnP server
'''
self.upnp = UPnP(device)
self.devices = [device]
device.parent = self
self.upnp.parent = self
self.site = server.Site(self.upnp)
edp = endpoints.serverFromString(reactor, "tcp:0")
StreamServerEndpointService.__init__(self, edp, self.site)
self._choosenPort = None
for service in device.services:
service.control_resource = TwistedWebResource(service.app)
service.event_resource = ServiceEventResource(service)
service.resource = ServiceResource(service)
def __init__(self, cluster_state, configuration_service, endpoint):
"""
:param ClusterStateService cluster_state: Object that records known
cluster state.
:param ConfigurationPersistenceService configuration_service:
Persistence service for desired cluster configuration.
:param endpoint: Endpoint to listen on.
"""
self.connections = set()
self.cluster_state = cluster_state
self.configuration_service = configuration_service
self.endpoint_service = StreamServerEndpointService(
endpoint, ServerFactory.forProtocol(lambda: ControlAMP(self)))
# When configuration changes, notify all connected clients:
self.configuration_service.register(
lambda: self._send_state_to_connections(self.connections))
def setUp(self):
"""
Construct a stub server, a stub factory, and a
L{StreamServerEndpointService} to test.
"""
self.fakeServer = FakeServer()
self.factory = Factory()
self.svc = StreamServerEndpointService(self.fakeServer, self.factory)
def get_liveness_service(options, reactor, check_liveness):
root = Resource()
root.putChild(b"liveness", LivenessResource(check_liveness))
return StreamServerEndpointService(
serverFromString(reactor, options["liveness-port"]),
Site(root),
)
def run_service(node_id):
endpoint = serverFromString(
reactor, "unix:{}:mode=600".format(PLUGIN_PATH.path))
service = StreamServerEndpointService(
endpoint,
Site(
VolumePlugin(reactor, flocker_client,
node_id).app.resource()))
return main_for_service(reactor, service)
def start_AMP(self, p_pyhouse_obj):
l_endpoint = TCP4ServerEndpoint
l_factory = Factory()
l_factory.protocol = AMP
p_pyhouse_obj.Services.IrControlService = StreamServerEndpointService(
l_endpoint, l_factory)
p_pyhouse_obj.Services.IrControlService.setName('IrControl')
p_pyhouse_obj.Services.IrControlService.setServiceParent(
p_pyhouse_obj.Twisted.Application)
def startService(self): if self.running or self.loop != -1: # Already started return msg(self.name, 'start') # Cancel stop if self._stopCall: self._stopCall.cancel() self._stopCall = None # Call stop self._stopDeferred.callback(0) self._stopDeferred = None self.loop = 0 Service.startService(self)
def makeReceiverService(endpoint, local_ivo, validators, handlers, whitelist):
"""Create a VOEvent receiver service.
The receiver service accepts VOEvent messages submitted to the broker by
authors.
Parameters
----------
endpoint : implements `twisted.internet.interfaces.IStreamServerEndpoint`
The endpoint to which the service will listen.
local_ivo : `str`
IVOA identifier for the subscriber.
validators : `list` of implementers of `~comet.icomet.IValidator`.
Validators which will be applied to incoming events. Events which fail
validation will be rejected.
handlers : `list` of implementers of `~comet.icomet.IHandler`.
Handlers to which events which pass validation will be passed.
whitelist : `list` of `ipaddress.IPv4Network` or `ipaddress.IPv6Network`
Submissions are only accepted from addresses which fall in a network
included in the whitelist.
Warnings
--------
Although a non-TCP endpoint can be specified (a Unix domain socket, for
example), the whitelist won't be applied to it correctly (indeed, it will
probably break horribly).
"""
factory = VOEventReceiverFactory(local_ivo=local_ivo,
validators=validators,
handlers=handlers)
if log.LEVEL >= log.Levels.INFO:
factory.noisy = False
whitelisting_factory = WhitelistingFactory(factory, whitelist, "submission")
if log.LEVEL >= log.Levels.INFO:
whitelisting_factory.noisy = False
service = StreamServerEndpointService(endpoint, whitelisting_factory)
# Shut down, rather than simply logging an error, if we can't bind.
service._raiseSynchronously = True
return service
def service(description, factory, default=_DEFAULT, reactor=None):
"""
Return the service corresponding to a description.
@param description: The description of the listening port, in the syntax
described by L{twisted.internet.endpoints.server}.
@type description: C{str}
@param factory: The protocol factory which will build protocols for
connections to this service.
@type factory: L{twisted.internet.interfaces.IProtocolFactory}
@type default: C{str} or C{None}
@param default: Do not use this parameter. It has been deprecated since
Twisted 10.2.0.
@rtype: C{twisted.application.service.IService}
@return: the service corresponding to a description of a reliable
stream server.
@see: L{twisted.internet.endpoints.serverFromString}
"""
if reactor is None:
from twisted.internet import reactor
if default is _DEFAULT:
default = None
else:
message = "The 'default' parameter was deprecated in Twisted 10.2.0."
if default is not None:
message += (
" Use qualified endpoint descriptions; for example, "
"'tcp:%s'." % (description,))
warnings.warn(
message=message, category=DeprecationWarning, stacklevel=2)
svc = StreamServerEndpointService(
endpoints._serverFromStringLegacy(reactor, description, default),
factory)
svc._raiseSynchronously = True
return svc
def makeService(self, options):
greatPath = FilePath(great.__file__).parent()
staticPath = greatPath.child("static")
templatesPath = greatPath.child("templates")
rootResource = Resource()
rootResource.putChild("", File(staticPath.child("index.html").path))
rootResource.putChild("static", File(staticPath.path))
rootResource.putChild("templates", File(templatesPath.path))
rootResource.putChild("great", MinionResource(create_app()))
greatService = StreamServerEndpointService(
endpoint=options["endpoint"],
factory=server.Site(rootResource),
)
redirects = options["redirects"]
if not redirects:
return greatService
service = MultiService()
greatService.setServiceParent(service)
for redirect in redirects:
redirectService = StreamServerEndpointService(
endpoint=redirect,
factory=server.Site(Redirect(options["canonical_url"])),
)
redirectService.setServiceParent(service)
return service
def makeService(self, options):
reactor = self.reactor
if reactor is None:
from twisted.internet import reactor
resolver = self.resolver
if resolver is None:
resolver = getResolver()
with open(options.config) as infile:
config = yaml.safe_load(infile)
multiService = MultiService()
for proxy in config['proxies']:
client = endpoints.clientFromString(reactor, str(proxy['client']))
server = endpoints.serverFromString(reactor, str(proxy['server']))
fac = ProxyFactory(client, resolver, proxy)
service = StreamServerEndpointService(server, fac)
service.setServiceParent(multiService)
return multiService
def __init__(self, listen): self.name = 'Receiver' self.loop = -1 # Inside self._stopCall = None self._stopDeferred = None self._workers = 0 (Service.__init__( self, endpoint=serverFromString(reactor, listen), factory=ReceiverFactory(service=self), ))
def setup(self):
storage.init(self.config['database'])
cert = OpenPGPCertificate(open(self.config['pgp_cert']).read())
key = OpenPGPPrivateKey(open(self.config['pgp_key']).read())
cred = auth.OpenPGPKontalkCredentials(cert, key, str(self.config['pgp_keyring']))
cred.verify_peer = True
ring = keyring.Keyring(storage.MySQLNetworkStorage(), self.config['fingerprint'], self.network, self.servername)
self.service = NetService(self.config, self, ring, cred)
self.service.logTraffic = self.logTraffic
self.sfactory = XMPPNetServerFactory(self.service)
self.sfactory.logTraffic = self.logTraffic
tls_svc = StreamServerEndpointService(
tls.TLSServerEndpoint(reactor=reactor,
port=int(self.config['bind'][1]),
interface=str(self.config['bind'][0]),
credentials=cred),
self.sfactory)
tls_svc._raiseSynchronously = True
return tls_svc
def __init__(self, debug, basedir, conf):
'''
Initialization of web and websocket servers
'''
self.playing = False
self.conf = conf
self.recording = False
self.analysing = False
self.serving = False
self.opened = False
self.analyzed = {}
self.analyzed['cocktail'] = 0
self.analyzed['result'] = ''
self.port = str(conf.httpport)
self.debug = debug
self.langage = conf.langage
self.dbsession = conf.dbsession
self.inports = []
self.outports = []
self.sysports = [(0,0),(0,0)]
self.page = Dispatcher(debug, basedir, conf)
print("installdir= %s" % basedir)
self.page.parent = self
self.site = server.Site(self.page)
self.site.protocol = HTTPChannelHixie76Aware
if isinstance(conf.httpport, int):
edp = endpoints.serverFromString(reactor, "tcp:"+str(conf.httpport))
else:
edp = endpoints.serverFromString(reactor, conf.httpport)
StreamServerEndpointService.__init__(self, edp, self.site)
self.wsfactory = SeqFactory(debug, self.endpoint._port)
self.wsfactory.protocol = PyanoTCP
self.wsfactory.setProtocolOptions(allowHixie76 = True)
self.wsfactory.parent = self
self.wsresource = WebSocketResource(self.wsfactory)
self.page.putChild("ws", self.wsresource)
def __init__(self, cluster_state, configuration_service, endpoint):
"""
:param ClusterStateService cluster_state: Object that records known
cluster state.
:param ConfigurationPersistenceService configuration_service:
Persistence service for desired cluster configuration.
:param endpoint: Endpoint to listen on.
"""
self.connections = set()
self.cluster_state = cluster_state
self.configuration_service = configuration_service
self.endpoint_service = StreamServerEndpointService(
endpoint, ServerFactory.forProtocol(lambda: ControlAMP(self)))
# When configuration changes, notify all connected clients:
self.configuration_service.register(
lambda: self._send_state_to_connections(self.connections))
def setUp(self):
super(BenchmarkAPITestsMixin, self).setUp()
api = BenchmarkAPI_V1(self.backend)
site = server.Site(api.app.resource())
def make_client(listening_port):
addr = listening_port.getHost()
self.agent = client.ProxyAgent(
endpoints.TCP4ClientEndpoint(
self.reactor,
addr.host,
addr.port,
),
self.reactor,
)
listening = Deferred()
listening.addCallback(make_client)
endpoint = TestEndpoint(self.reactor, listening)
self.service = StreamServerEndpointService(endpoint, site)
self.service.startService()
self.addCleanup(self.service.stopService)
return listening
def makeService(self, options):
pi = Pi(audience=options["canonical_url"])
piService = StreamServerEndpointService(
endpoint=options["endpoint"],
factory=server.Site(pi.app.resource()),
)
redirects = options["redirects"]
if not redirects:
return piService
service = MultiService()
piService.setServiceParent(service)
for redirect in redirects:
redirectService = StreamServerEndpointService(
endpoint=redirect,
factory=server.Site(Redirect(options["canonical_url"])),
)
redirectService.setServiceParent(service)
return service
class ControlAMPService(Service):
"""
Control Service AMP server.
Convergence agents connect to this server.
"""
logger = Logger()
def __init__(self, cluster_state, configuration_service, endpoint):
"""
:param ClusterStateService cluster_state: Object that records known
cluster state.
:param ConfigurationPersistenceService configuration_service:
Persistence service for desired cluster configuration.
:param endpoint: Endpoint to listen on.
"""
self.connections = set()
self.cluster_state = cluster_state
self.configuration_service = configuration_service
self.endpoint_service = StreamServerEndpointService(
endpoint, ServerFactory.forProtocol(lambda: ControlAMP(self)))
# When configuration changes, notify all connected clients:
self.configuration_service.register(
lambda: self._send_state_to_connections(self.connections))
def startService(self):
self.endpoint_service.startService()
def stopService(self):
self.endpoint_service.stopService()
for connection in self.connections:
connection.transport.loseConnection()
def _send_state_to_connections(self, connections):
"""
Send desired configuration and cluster state to all given connections.
:param connections: A collection of ``AMP`` instances.
"""
configuration = self.configuration_service.get()
state = self.cluster_state.as_deployment()
with LOG_SEND_CLUSTER_STATE(self.logger,
configuration=configuration,
state=state):
for connection in connections:
action = LOG_SEND_TO_AGENT(self.logger, agent=connection)
with action.context():
d = DeferredContext(connection.callRemote(
ClusterStatusCommand,
configuration=configuration,
state=state,
eliot_context=action
))
d.addActionFinish()
d.result.addErrback(lambda _: None)
def connected(self, connection):
"""
A new connection has been made to the server.
:param ControlAMP connection: The new connection.
"""
self.connections.add(connection)
self._send_state_to_connections([connection])
def disconnected(self, connection):
"""
An existing connection has been disconnected.
:param ControlAMP connection: The lost connection.
"""
self.connections.remove(connection)
def node_changed(self, state_changes):
"""
We've received a node state update from a connected client.
:param bytes hostname: The hostname of the node.
:param list state_changes: One or more ``IClusterStateChange``
providers representing the state change which has taken place.
"""
self.cluster_state.apply_changes(state_changes)
self._send_state_to_connections(self.connections)
self.setContextFactory(name, connection)
else:
log.msg('SNI not provided, closing SSL connection')
connection.shutdown()
def getContext(self):
return self._context
sslContext = SNIContextFactory(depl, config)
ports = [
endpoints.TCP4ServerEndpoint(reactor, config.getint('master', 'port')),
endpoints.SSL4ServerEndpoint(reactor, config.getint('master', 'sslport'),
sslContext),
]
logfile = filepath.FilePath(config.get('master', 'http_logfile'))
if not logfile.parent().exists():
logfile.parent().makedirs()
depl.root.putChild('_admin', resources.VhostListing(depl))
site = server.Site(depl.root, logPath=logfile.path)
application = service.Application('appserver')
depl.setServiceParent(application)
for port in ports:
svc = StreamServerEndpointService(port, site)
svc.setServiceParent(application)
class ControlAMPService(Service):
"""
Control Service AMP server.
Convergence agents connect to this server.
:ivar dict _current_command: A dictionary containing information about
connections to which state updates are currently in progress. The keys
are protocol instances. The values are ``_UpdateState`` instances.
:ivar IReactorTime _reactor: An ``IReactorTime`` provider to be used to
schedule delays in sending updates.
:ivar set _connections_pending_update: A ``set`` of connections that are
currently pending getting an update of state and configuration. An
empty set indicates that there is no update pending.
:ivar IDelayedCall _current_pending_update_delayed_call: The
``IDelayedCall`` provider for the currently pending call to update
state/configuration on connected nodes.
"""
logger = Logger()
def __init__(self, reactor, cluster_state, configuration_service, endpoint,
context_factory):
"""
:param reactor: See ``ControlServiceLocator.__init__``.
:param ClusterStateService cluster_state: Object that records known
cluster state.
:param ConfigurationPersistenceService configuration_service:
Persistence service for desired cluster configuration.
:param endpoint: Endpoint to listen on.
:param context_factory: TLS context factory.
"""
self.connections = set()
self._reactor = reactor
self._connections_pending_update = set()
self._current_pending_update_delayed_call = None
self._current_command = {}
self.cluster_state = cluster_state
self.configuration_service = configuration_service
self.endpoint_service = StreamServerEndpointService(
endpoint,
TLSMemoryBIOFactory(
context_factory,
False,
ServerFactory.forProtocol(lambda: ControlAMP(reactor, self))
)
)
# When configuration changes, notify all connected clients:
self.configuration_service.register(self._schedule_broadcast_update)
def startService(self):
self.endpoint_service.startService()
def stopService(self):
if self._current_pending_update_delayed_call:
self._current_pending_update_delayed_call.cancel()
self._current_pending_update_delayed_call = None
self.endpoint_service.stopService()
for connection in self.connections:
connection.transport.loseConnection()
def _send_state_to_connections(self, connections):
"""
Send desired configuration and cluster state to all given connections.
:param connections: A collection of ``AMP`` instances.
"""
configuration = self.configuration_service.get()
state = self.cluster_state.as_deployment()
# Connections are separated into three groups to support a scheme which
# lets us avoid sending certain updates which we know are not
# necessary. This reduces traffic and associated costs (CPU, memory).
#
# Other schemes are possible and might produce even better performance.
# See https://clusterhq.atlassian.net/browse/FLOC-3140 for some
# brainstorming.
# Collect connections for which there is currently no unacknowledged
# update. These can receive a new update right away.
can_update = []
# Collect connections for which there is an unacknowledged update.
# Since something has changed, these should receive another update once
# that acknowledgement is received.
delayed_update = []
# Collect connections which were already set to receive a delayed
# update and still haven't sent an acknowledgement. These will still
# receive a delayed update but we'll also note that we're going to skip
# sending one intermediate update to them.
elided_update = []
for connection in connections:
try:
update = self._current_command[connection]
except KeyError:
# There's nothing in the tracking state for this connection.
# That means there's no unacknowledged update. That means we
# can send another update right away.
can_update.append(connection)
else:
# These connections do currently have an unacknowledged update
# outstanding.
if update.next_scheduled:
# And these connections are also already scheduled to
# receive another update after the one they're currently
# processing. That update will include the most up-to-date
# information so we're effectively skipping an update
# that's no longer useful.
elided_update.append(connection)
else:
# These don't have another update scheduled yet so we'll
# schedule one.
delayed_update.append(connection)
# Make sure to run the logging action inside the caching block.
# This lets encoding for logging share the cache with encoding for
# network traffic.
with LOG_SEND_CLUSTER_STATE() as action:
if can_update:
# If there are any protocols that can be updated right now,
# we also want to see what updates they receive. Since
# logging shares the caching context, it shouldn't be any
# more expensive to serialize this information into the log
# now. We specifically avoid logging this information if
# no protocols are being updated because the serializing is
# more expensive in that case and at the same time that
# information isn't actually useful.
action.add_success_fields(
configuration=configuration, state=state
)
else:
# Eliot wants those fields though.
action.add_success_fields(configuration=None, state=None)
for connection in can_update:
self._update_connection(connection, configuration, state)
for connection in elided_update:
AGENT_UPDATE_ELIDED(agent=connection).write()
for connection in delayed_update:
self._delayed_update_connection(connection)
def _update_connection(self, connection, configuration, state):
"""
Send a ``ClusterStatusCommand`` to an agent.
:param ControlAMP connection: The connection to use to send the
command.
:param Deployment configuration: The cluster configuration to send.
:param DeploymentState state: The current cluster state to send.
"""
action = LOG_SEND_TO_AGENT(agent=connection)
with action.context():
# Use ``maybeDeferred`` so if an exception happens,
# it will be wrapped in a ``Failure`` - see FLOC-3221
d = DeferredContext(maybeDeferred(
connection.callRemote,
ClusterStatusCommand,
configuration=configuration,
state=state,
eliot_context=action
))
d.addActionFinish()
d.result.addErrback(lambda _: None)
update = self._current_command[connection] = _UpdateState(
response=d.result,
next_scheduled=False,
)
def finished_update(ignored):
del self._current_command[connection]
update.response.addCallback(finished_update)
def _delayed_update_connection(self, connection):
"""
Send a ``ClusterStatusCommand`` to an agent after it has acknowledged
the last one.
:param ControlAMP connection: The connection to use to send the
command. This connection is expected to have previously been sent
such a command and to not yet have acknowledged it. Internal state
related to this will be used and then updated.
"""
AGENT_UPDATE_DELAYED(agent=connection).write()
update = self._current_command[connection]
update.response.addCallback(
lambda ignored: self._schedule_update([connection]),
)
self._current_command[connection] = update.set(next_scheduled=True)
def connected(self, connection):
"""
A new connection has been made to the server.
:param ControlAMP connection: The new connection.
"""
with AGENT_CONNECTED(agent=connection):
self.connections.add(connection)
self._schedule_update([connection])
def disconnected(self, connection):
"""
An existing connection has been disconnected.
:param ControlAMP connection: The lost connection.
"""
self.connections.remove(connection)
def _execute_update_connections(self):
"""
Actually executes an update to all pending connections.
"""
connections_to_update = self._connections_pending_update
self._connections_pending_update = set()
self._current_pending_update_delayed_call = None
self._send_state_to_connections(connections_to_update)
def _schedule_update(self, connections):
"""
Schedule a call to send_state_to_connections.
This function adds a delay in the hopes that additional updates will be
scheduled and they can all be called at once in a batch.
:param connections: An iterable of connections that will be passed to
``_send_state_to_connections``.
"""
self._connections_pending_update.update(set(connections))
# If there is no current pending update and there are connections
# pending an update, we must schedule the delayed call to update
# connections.
if (self._current_pending_update_delayed_call is None
and self._connections_pending_update):
self._current_pending_update_delayed_call = (
self._reactor.callLater(
CONTROL_SERVICE_BATCHING_DELAY,
self._execute_update_connections
)
)
def _schedule_broadcast_update(self):
"""
Ensure that there is a pending broadcast update call.
This is called when the state or configuration is updated, to trigger
a broadcast of the current state and configuration to all nodes.
In general, it only schedules an update to be broadcast 1 second later
so that if we receive multiple updates within that second they are
coalesced down to a single update.
"""
self._schedule_update(self.connections)
def node_changed(self, source, state_changes):
"""
We've received a node state update from a connected client.
:param IClusterStateSource source: Representation of where these
changes were received from.
:param list state_changes: One or more ``IClusterStateChange``
providers representing the state change which has taken place.
"""
self.cluster_state.apply_changes_from_source(source, state_changes)
self._schedule_broadcast_update()
class TestEndpointService(TestCase):
"""
Tests for L{twisted.application.internet}.
"""
def setUp(self):
"""
Construct a stub server, a stub factory, and a
L{StreamServerEndpointService} to test.
"""
self.fakeServer = FakeServer()
self.factory = Factory()
self.svc = StreamServerEndpointService(self.fakeServer, self.factory)
def test_privilegedStartService(self):
"""
L{StreamServerEndpointService.privilegedStartService} calls its
endpoint's C{listen} method with its factory.
"""
self.svc.privilegedStartService()
self.assertIdentical(self.factory, self.fakeServer.factory)
def test_synchronousRaiseRaisesSynchronously(self, thunk=None):
"""
L{StreamServerEndpointService.startService} should raise synchronously
if the L{Deferred} returned by its wrapped
L{IStreamServerEndpoint.listen} has already fired with an errback and
the L{StreamServerEndpointService}'s C{_raiseSynchronously} flag has
been set. This feature is necessary to preserve compatibility with old
behavior of L{twisted.internet.strports.service}, which is to return a
service which synchronously raises an exception from C{startService}
(so that, among other things, twistd will not start running). However,
since L{IStreamServerEndpoint.listen} may fail asynchronously, it is
a bad idea to rely on this behavior.
"""
self.fakeServer.failImmediately = ZeroDivisionError()
self.svc._raiseSynchronously = True
self.assertRaises(ZeroDivisionError, thunk or self.svc.startService)
def test_synchronousRaisePrivileged(self):
"""
L{StreamServerEndpointService.privilegedStartService} should behave the
same as C{startService} with respect to
L{TestEndpointService.test_synchronousRaiseRaisesSynchronously}.
"""
self.test_synchronousRaiseRaisesSynchronously(
self.svc.privilegedStartService)
def test_failReportsError(self):
"""
L{StreamServerEndpointService.startService} and
L{StreamServerEndpointService.privilegedStartService} should both log
an exception when the L{Deferred} returned from their wrapped
L{IStreamServerEndpoint.listen} fails.
"""
self.svc.startService()
self.fakeServer.result.errback(ZeroDivisionError())
logged = self.flushLoggedErrors(ZeroDivisionError)
self.assertEquals(len(logged), 1)
def test_synchronousFailReportsError(self):
"""
Without the C{_raiseSynchronously} compatibility flag, failing
immediately has the same behavior as failing later; it logs the error.
"""
self.fakeServer.failImmediately = ZeroDivisionError()
self.svc.startService()
logged = self.flushLoggedErrors(ZeroDivisionError)
self.assertEquals(len(logged), 1)
def test_startServiceUnstarted(self):
"""
L{StreamServerEndpointService.startService} sets the C{running} flag,
and calls its endpoint's C{listen} method with its factory, if it
has not yet been started.
"""
self.svc.startService()
self.assertIdentical(self.factory, self.fakeServer.factory)
self.assertEquals(self.svc.running, True)
def test_startServiceStarted(self):
"""
L{StreamServerEndpointService.startService} sets the C{running} flag,
but nothing else, if the service has already been started.
"""
self.test_privilegedStartService()
self.svc.startService()
self.assertEquals(self.fakeServer.listenAttempts, 1)
self.assertEquals(self.svc.running, True)
def test_stopService(self):
"""
L{StreamServerEndpointService.stopService} calls C{stopListening} on
the L{IListeningPort} returned from its endpoint, returns the
C{Deferred} from stopService, and sets C{running} to C{False}.
"""
self.svc.privilegedStartService()
self.fakeServer.startedListening()
# Ensure running gets set to true
self.svc.startService()
result = self.svc.stopService()
l = []
result.addCallback(l.append)
self.assertEquals(len(l), 0)
self.fakeServer.stoppedListening()
self.assertEquals(len(l), 1)
self.assertFalse(self.svc.running)
def test_stopServiceBeforeStartFinished(self):
"""
L{StreamServerEndpointService.stopService} cancels the L{Deferred}
returned by C{listen} if it has not yet fired. No error will be logged
about the cancellation of the listen attempt.
"""
self.svc.privilegedStartService()
result = self.svc.stopService()
l = []
result.addBoth(l.append)
self.assertEquals(l, [None])
self.assertEquals(self.flushLoggedErrors(CancelledError), [])
def test_stopServiceCancelStartError(self):
"""
L{StreamServerEndpointService.stopService} cancels the L{Deferred}
returned by C{listen} if it has not fired yet. An error will be logged
if the resulting exception is not L{CancelledError}.
"""
self.fakeServer.cancelException = ZeroDivisionError()
self.svc.privilegedStartService()
result = self.svc.stopService()
l = []
result.addCallback(l.append)
self.assertEquals(l, [None])
stoppingErrors = self.flushLoggedErrors(ZeroDivisionError)
self.assertEquals(len(stoppingErrors), 1)
