def publish_request(self, ta, service_id, generation, service_props, ttl):
try:
service = self.sd.publish(service_id, generation, service_props,
ttl, self.client_id)
if not service.has_prev_generation():
self.debug(
"Published new service with id %x, generation %d, "
"props %s and TTL %d s." %
(service_id, generation, props.to_str(service_props), ttl),
LogCategory.CORE)
else:
log_msg = "Re-published service with id %x. " \
"Generation %d -> %d." \
% (service_id, service.had_generation(),
service.generation())
if service.was_orphan():
log_msg += " Replacing orphan."
if service.props() != service.had_props():
log_msg += " Properties changed from %s to %s." \
% (props.to_str(service.had_props()),
props.to_str(service.props()))
if service.ttl() != service.had_ttl():
log_msg += " TTL changed from %d to %d s." \
% (service.had_ttl(), service.ttl())
if service.client_id() != service.had_client_id():
log_msg += " Owner is changed from %x to %x." \
% (service.had_client_id(), service.client_id())
self.debug(log_msg, LogCategory.CORE)
yield ta.complete()
except sd.PermissionError as e:
self.warning(
"Permission error while publishing service %x: "
"%s." % (service_id, e), LogCategory.SECURITY)
yield ta.fail(fail_reason=proto.FAIL_REASON_PERMISSION_DENIED)
except sd.ResourceError as e:
self.warning(
"Resource error while publishing service %x: "
"%s." % (service_id, e), LogCategory.SECURITY)
yield ta.fail(fail_reason=proto.FAIL_REASON_INSUFFICIENT_RESOURCES)
except sd.GenerationError as e:
self.warning(
"Error while re-publishing service %x: %s." % (service_id, e),
LogCategory.CORE)
yield ta.fail(fail_reason=proto.FAIL_REASON_OLD_GENERATION)
except sd.SameGenerationButDifferentError as e:
self.warning(
"Error while re-publishing service %x: %s." % (service_id, e),
LogCategory.CORE)
yield ta.fail(
fail_reason=proto.FAIL_REASON_SAME_GENERATION_BUT_DIFFERENT)
def subscription_triggered(self, sub_id, match_type, service):
subscription = self.server.sd.get_subscription(sub_id)
if subscription.filter is not None:
filter_s = "with filter %s" % subscription.filter
else:
filter_s = "without filter"
if match_type == sd.MatchType.DISAPPEARED:
service_props = service.had_props()
else:
service_props = service.props()
self.debug(
"Subscription id %d %s received %s event by "
"service id %x with properties %s." %
(sub_id, filter_s, match_type.name, service.service_id,
props.to_str(service_props)), LogCategory.CORE)
proto_match_type = getattr(proto, "MATCH_TYPE_%s" % match_type.name)
ta = self.sub_tas[sub_id]
if match_type == sd.MatchType.DISAPPEARED:
self.respond(ta.notify(proto_match_type, service.service_id))
else:
self.respond(
ta.notify(proto_match_type,
service.service_id,
generation=service.generation(),
service_props=service.props(),
ttl=service.ttl(),
client_id=service.client_id(),
orphan_since=service.orphan_since()))
def publish_request(self, ta, service_id, generation, service_props, ttl):
try:
service = self.sd.publish(service_id, generation, service_props,
ttl, self.client_id)
if service.before is None:
self.debug(
"Published new service with id %x, generation %d, "
"props %s and TTL %d s." %
(service_id, generation, props.to_str(service_props), ttl))
else:
log_msg = "Re-published service with id %x. " \
"Generation %d -> %d." \
% (service_id, service.before.generation,
service.generation)
if service.before.is_orphan():
log_msg += " Replacing orphan."
if service.props != service.before.props:
log_msg += " Properties changed from %s to %s." \
% (props.to_str(service.before.props),
props.to_str(service.props))
if service.ttl != service.before.ttl:
log_msg += " TTL changed from %d to %d s." \
% (service.before.ttl, service.ttl)
if service.client_id != service.before.client_id:
log_msg += " Owner is changed from %x to %x." \
% (service.before.client_id, service.client_id)
self.debug(log_msg)
yield ta.complete()
except sd.PermissionError as e:
self.warning("Permission error while publishing service %x: "
"%s." % (service_id, e))
yield ta.fail(fail_reason=proto.FAIL_REASON_PERMISSION_DENIED)
except sd.ResourceError as e:
self.warning("Resource error while publishing service %x: "
"%s." % (service_id, e))
yield ta.fail(fail_reason=proto.FAIL_REASON_INSUFFICIENT_RESOURCES)
except sd.GenerationError as e:
self.warning("Error while re-publishing service %x: %s." %
(service_id, e))
yield ta.fail(fail_reason=proto.FAIL_REASON_OLD_GENERATION)
def unpublish_request(self, ta, service_id):
try:
service_props = self.sd.get_service(service_id).props
self.sd.unpublish(service_id, self.client_id)
self.debug("Unpublished service %s with service id %x." %
(props.to_str(service_props), service_id))
yield ta.complete()
except sd.PermissionError as e:
self.warning("Permission error while trying to unpublish service "
"id %x: %s." % (service_id, e))
reason = proto.FAIL_REASON_PERMISSION_DENIED
yield ta.fail(fail_reason=reason)
except sd.NotFoundError:
self.warning("Attempted to unpublish non-existent service "
"id %d." % service_id)
reason = proto.FAIL_REASON_NON_EXISTENT_SERVICE_ID
yield ta.fail(fail_reason=reason)