import atexit import logging import os import tempfile import time from Queue import Queue, Empty import grpc from concurrent import futures from core.emulator.emudata import NodeOptions, InterfaceData, LinkOptions from core.enumerations import NodeTypes, EventTypes, LinkTypes from core.grpc import core_pb2 from core.grpc import core_pb2_grpc from core.misc import nodeutils from core.mobility import BasicRangeModel, Ns2ScriptedMobility from core.service import ServiceManager _ONE_DAY_IN_SECONDS = 60 * 60 * 24 def convert_value(value): if value is not None: value = str(value) return value def get_config_groups(config, configurable_options): groups = [] config_options = [] for configuration in configurable_options.configurations(): value = config[configuration.id] config_option = core_pb2.ConfigOption() config_option.label = configuration.label config_option.name = configuration.id config_option.value = value config_option.type = configuration.type.value config_option.select.extend(configuration.options) config_options.append(config_option) for config_group in configurable_options.config_groups(): start = config_group.start - 1 stop = config_group.stop options = config_options[start: stop] config_group_proto = core_pb2.ConfigGroup(name=config_group.name, options=options) groups.append(config_group_proto) return groups def get_links(session, node): links = [] for link_data in node.all_link_data(0): link = convert_link(session, link_data) links.append(link) return links def get_emane_model_id(_id, interface): if interface >= 0: return _id * 1000 + interface else: return _id def convert_link(session, link_data): interface_one = None if link_data.interface1_id is not None: node = session.get_object(link_data.node1_id) interface = node.netif(link_data.interface1_id) interface_one = core_pb2.Interface( id=link_data.interface1_id, name=interface.name, mac=convert_value(link_data.interface1_mac), ip4=convert_value(link_data.interface1_ip4), ip4mask=link_data.interface1_ip4_mask, ip6=convert_value(link_data.interface1_ip6), ip6mask=link_data.interface1_ip6_mask) interface_two = None if link_data.interface2_id is not None: node = session.get_object(link_data.node2_id) interface = node.netif(link_data.interface2_id) interface_two = core_pb2.Interface( id=link_data.interface2_id, name=interface.name, mac=convert_value(link_data.interface2_mac), ip4=convert_value(link_data.interface2_ip4), ip4mask=link_data.interface2_ip4_mask, ip6=convert_value(link_data.interface2_ip6), ip6mask=link_data.interface2_ip6_mask) options = core_pb2.LinkOptions( opaque=link_data.opaque, jitter=link_data.jitter, key=link_data.key, mburst=link_data.mburst, mer=link_data.mer, per=link_data.per, bandwidth=link_data.bandwidth, burst=link_data.burst, delay=link_data.delay, dup=link_data.dup, unidirectional=link_data.unidirectional ) return core_pb2.Link( type=link_data.link_type, node_one=link_data.node1_id, node_two=link_data.node2_id, interface_one=interface_one, interface_two=interface_two, options=options ) class CoreGrpcServer(core_pb2_grpc.CoreApiServicer): def __init__(self, coreemu): super(CoreGrpcServer, self).__init__() self.coreemu = coreemu self.running = True self.server = None atexit.register(self._exit_handler) def _exit_handler(self): logging.debug("catching exit, stop running") self.running = False def _is_running(self, context): return self.running and context.is_active() def _cancel_stream(self, context): context.abort(grpc.StatusCode.CANCELLED, "server stopping") def listen(self, address="[::]:50051"): logging.info("starting grpc api: %s", address) self.server = grpc.server(futures.ThreadPoolExecutor(max_workers=10)) core_pb2_grpc.add_CoreApiServicer_to_server(self, self.server) self.server.add_insecure_port(address) self.server.start() try: while True: time.sleep(_ONE_DAY_IN_SECONDS) except KeyboardInterrupt: self.server.stop(None) def get_session(self, _id, context): session = self.coreemu.sessions.get(_id) if not session: context.abort(grpc.StatusCode.NOT_FOUND, "session {} not found".format(_id)) return session def get_node(self, session, _id, context): try: return session.get_object(_id) except KeyError: context.abort(grpc.StatusCode.NOT_FOUND, "node {} not found".format(_id)) def CreateSession(self, request, context): logging.debug("create session: %s", request) session = self.coreemu.create_session(request.id) session.set_state(EventTypes.DEFINITION_STATE) session.location.setrefgeo(47.57917, -122.13232, 2.0) session.location.refscale = 150000.0 return core_pb2.CreateSessionResponse(id=session.session_id, state=session.state) def DeleteSession(self, request, context): logging.debug("delete session: %s", request) result = self.coreemu.delete_session(request.id) return core_pb2.DeleteSessionResponse(result=result) def GetSessions(self, request, context): logging.debug("get sessions: %s", request) sessions = [] for session_id in self.coreemu.sessions: session = self.coreemu.sessions[session_id] session_summary = core_pb2.SessionSummary( id=session_id, state=session.state, nodes=session.get_node_count()) sessions.append(session_summary) return core_pb2.GetSessionsResponse(sessions=sessions) def GetSessionLocation(self, request, context): logging.debug("get session location: %s", request) session = self.get_session(request.id, context) x, y, z = session.location.refxyz lat, lon, alt = session.location.refgeo position = core_pb2.Position(x=x, y=y, z=z, lat=lat, lon=lon, alt=alt) return core_pb2.GetSessionLocationResponse(position=position, scale=session.location.refscale) def SetSessionLocation(self, request, context): logging.debug("set session location: %s", request) session = self.get_session(request.id, context) session.location.refxyz = (request.position.x, request.position.y, request.position.z) session.location.setrefgeo(request.position.lat, request.position.lon, request.position.alt) session.location.refscale = request.scale return core_pb2.SetSessionLocationResponse(result=True) def SetSessionState(self, request, context): logging.debug("set session state: %s", request) session = self.get_session(request.id, context) try: state = EventTypes(request.state) session.set_state(state) if state == EventTypes.INSTANTIATION_STATE: if not os.path.exists(session.session_dir): os.mkdir(session.session_dir) session.instantiate() elif state == EventTypes.SHUTDOWN_STATE: session.shutdown() elif state == EventTypes.DATACOLLECT_STATE: session.data_collect() elif state == EventTypes.DEFINITION_STATE: session.clear() result = True except KeyError: result = False return core_pb2.SetSessionStateResponse(result=result) def GetSessionOptions(self, request, context): logging.debug("get session options: %s", request) session = self.get_session(request.id, context) config = session.options.get_configs() defaults = session.options.default_values() defaults.update(config) groups = get_config_groups(defaults, session.options) return core_pb2.GetSessionOptionsResponse(groups=groups) def SetSessionOptions(self, request, context): logging.debug("set session options: %s", request) session = self.get_session(request.id, context) config = session.options.get_configs() config.update(request.config) return core_pb2.SetSessionOptionsResponse(result=True) def GetSession(self, request, context): logging.debug("get session: %s", request) session = self.get_session(request.id, context) links = [] nodes = [] for node_id in session.objects: node = session.objects[node_id] if not isinstance(node.objid, int): continue node_type = nodeutils.get_node_type(node.__class__).value model = getattr(node, "type", None) position = core_pb2.Position(x=node.position.x, y=node.position.y, z=node.position.z) services = getattr(node, "services", []) if services is None: services = [] services = [x.name for x in services] emane_model = None if nodeutils.is_node(node, NodeTypes.EMANE): emane_model = node.model.name node_proto = core_pb2.Node( id=node.objid, name=node.name, emane=emane_model, model=model, type=node_type, position=position, services=services) nodes.append(node_proto) node_links = get_links(session, node) links.extend(node_links) session_proto = core_pb2.Session(state=session.state, nodes=nodes, links=links) return core_pb2.GetSessionResponse(session=session_proto) def NodeEvents(self, request, context): session = self.get_session(request.id, context) queue = Queue() session.node_handlers.append(queue.put) while self._is_running(context): try: node = queue.get(timeout=1) position = core_pb2.Position(x=node.x_position, y=node.y_position) services = node.services or "" services = services.split("|") node_proto = core_pb2.Node( id=node.id, name=node.name, model=node.model, position=position, services=services) node_event = core_pb2.NodeEvent(node=node_proto) yield node_event except Empty: continue self._cancel_stream(context) def LinkEvents(self, request, context): session = self.get_session(request.id, context) queue = Queue() session.link_handlers.append(queue.put) while self._is_running(context): try: event = queue.get(timeout=1) interface_one = None if event.interface1_id is not None: interface_one = core_pb2.Interface( id=event.interface1_id, name=event.interface1_name, mac=convert_value(event.interface1_mac), ip4=convert_value(event.interface1_ip4), ip4mask=event.interface1_ip4_mask, ip6=convert_value(event.interface1_ip6), ip6mask=event.interface1_ip6_mask) interface_two = None if event.interface2_id is not None: interface_two = core_pb2.Interface( id=event.interface2_id, name=event.interface2_name, mac=convert_value(event.interface2_mac), ip4=convert_value(event.interface2_ip4), ip4mask=event.interface2_ip4_mask, ip6=convert_value(event.interface2_ip6), ip6mask=event.interface2_ip6_mask) options = core_pb2.LinkOptions( opaque=event.opaque, jitter=event.jitter, key=event.key, mburst=event.mburst, mer=event.mer, per=event.per, bandwidth=event.bandwidth, burst=event.burst, delay=event.delay, dup=event.dup, unidirectional=event.unidirectional ) link = core_pb2.Link( type=event.link_type, node_one=event.node1_id, node_two=event.node2_id, interface_one=interface_one, interface_two=interface_two, options=options) link_event = core_pb2.LinkEvent(message_type=event.message_type, link=link) yield link_event except Empty: continue self._cancel_stream(context) def SessionEvents(self, request, context): session = self.get_session(request.id, context) queue = Queue() session.event_handlers.append(queue.put) while self._is_running(context): try: event = queue.get(timeout=1) event_time = event.time if event_time is not None: event_time = float(event_time) session_event = core_pb2.SessionEvent( node=event.node, event=event.event_type, name=event.name, data=event.data, time=event_time, session=session.session_id ) yield session_event except Empty: continue self._cancel_stream(context) def ConfigEvents(self, request, context): session = self.get_session(request.id, context) queue = Queue() session.config_handlers.append(queue.put) while self._is_running(context): try: event = queue.get(timeout=1) config_event = core_pb2.ConfigEvent( message_type=event.message_type, node=event.node, object=event.object, type=event.type, captions=event.captions, bitmap=event.bitmap, data_values=event.data_values, possible_values=event.possible_values, groups=event.groups, session=event.session, interface=event.interface_number, network_id=event.network_id, opaque=event.opaque, data_types=event.data_types ) yield config_event except Empty: continue self._cancel_stream(context) def ExceptionEvents(self, request, context): session = self.get_session(request.id, context) queue = Queue() session.exception_handlers.append(queue.put) while self._is_running(context): try: event = queue.get(timeout=1) exception_event = core_pb2.ExceptionEvent( node=event.node, session=int(event.session), level=event.level.value, source=event.source, date=event.date, text=event.text, opaque=event.opaque ) yield exception_event except Empty: continue self._cancel_stream(context) def FileEvents(self, request, context): session = self.get_session(request.id, context) queue = Queue() session.file_handlers.append(queue.put) while self._is_running(context): try: event = queue.get(timeout=1) file_event = core_pb2.FileEvent( message_type=event.message_type, node=event.node, name=event.name, mode=event.mode, number=event.number, type=event.type, source=event.source, session=event.session, data=event.data, compressed_data=event.compressed_data ) yield file_event except Empty: continue self._cancel_stream(context) def AddNode(self, request, context): logging.debug("add node: %s", request) session = self.get_session(request.session, context) node_proto = request.node node_id = node_proto.id node_type = node_proto.type if node_type is None: node_type = NodeTypes.DEFAULT.value node_type = NodeTypes(node_type) node_options = NodeOptions(name=node_proto.name, model=node_proto.model) node_options.icon = node_proto.icon node_options.opaque = node_proto.opaque node_options.services = node_proto.services position = node_proto.position node_options.set_position(position.x, position.y) node_options.set_location(position.lat, position.lon, position.alt) node = session.add_node(_type=node_type, _id=node_id, node_options=node_options) # configure emane if provided emane_model = node_proto.emane if emane_model: session.emane.set_model_config(node_id, emane_model) return core_pb2.AddNodeResponse(id=node.objid) def GetNode(self, request, context): logging.debug("get node: %s", request) session = self.get_session(request.session, context) node = self.get_node(session, request.id, context) interfaces = [] for interface_id, interface in node._netif.iteritems(): net_id = None if interface.net: net_id = interface.net.objid interface_proto = core_pb2.Interface( id=interface_id, netid=net_id, name=interface.name, mac=str(interface.hwaddr), mtu=interface.mtu, flowid=interface.flow_id) interfaces.append(interface_proto) emane_model = None if nodeutils.is_node(node, NodeTypes.EMANE): emane_model = node.model.name services = [x.name for x in getattr(node, "services", [])] position = core_pb2.Position(x=node.position.x, y=node.position.y, z=node.position.z) node_type = nodeutils.get_node_type(node.__class__).value node = core_pb2.Node( id=node.objid, name=node.name, type=node_type, emane=emane_model, model=node.type, position=position, services=services) return core_pb2.GetNodeResponse(node=node, interfaces=interfaces) def EditNode(self, request, context): logging.debug("edit node: %s", request) session = self.get_session(request.session, context) node_id = request.id node_options = NodeOptions() x = request.position.x y = request.position.y node_options.set_position(x, y) lat = request.position.lat lon = request.position.lon alt = request.position.alt node_options.set_location(lat, lon, alt) result = session.update_node(node_id, node_options) return core_pb2.EditNodeResponse(result=result) def DeleteNode(self, request, context): logging.debug("delete node: %s", request) session = self.get_session(request.session, context) result = session.delete_node(request.id) return core_pb2.DeleteNodeResponse(result=result) def GetNodeLinks(self, request, context): logging.debug("get node links: %s", request) session = self.get_session(request.session, context) node = self.get_node(session, request.id, context) links = get_links(session, node) return core_pb2.GetNodeLinksResponse(links=links) def AddLink(self, request, context): logging.debug("add link: %s", request) session = self.get_session(request.session, context) # validate node exist self.get_node(session, request.link.node_one, context) self.get_node(session, request.link.node_two, context) node_one = request.link.node_one node_two = request.link.node_two interface_one = None interface_one_data = request.link.interface_one if interface_one_data: name = interface_one_data.name if name == "": name = None mac = interface_one_data.mac if mac == "": mac = None interface_one = InterfaceData( _id=interface_one_data.id, name=name, mac=mac, ip4=interface_one_data.ip4, ip4_mask=interface_one_data.ip4mask, ip6=interface_one_data.ip6, ip6_mask=interface_one_data.ip6mask, ) interface_two = None interface_two_data = request.link.interface_two if interface_two_data: name = interface_two_data.name if name == "": name = None mac = interface_two_data.mac if mac == "": mac = None interface_two = InterfaceData( _id=interface_two_data.id, name=name, mac=mac, ip4=interface_two_data.ip4, ip4_mask=interface_two_data.ip4mask, ip6=interface_two_data.ip6, ip6_mask=interface_two_data.ip6mask, ) link_type = None link_type_value = request.link.type if link_type_value is not None: link_type = LinkTypes(link_type_value) options_data = request.link.options link_options = LinkOptions(_type=link_type) if options_data: link_options.delay = options_data.delay link_options.bandwidth = options_data.bandwidth link_options.per = options_data.per link_options.dup = options_data.dup link_options.jitter = options_data.jitter link_options.mer = options_data.mer link_options.burst = options_data.burst link_options.mburst = options_data.mburst link_options.unidirectional = options_data.unidirectional link_options.key = options_data.key link_options.opaque = options_data.opaque session.add_link(node_one, node_two, interface_one, interface_two, link_options=link_options) return core_pb2.AddLinkResponse(result=True) def EditLink(self, request, context): logging.debug("edit link: %s", request) session = self.get_session(request.session, context) node_one = request.node_one node_two = request.node_two interface_one_id = request.interface_one interface_two_id = request.interface_two options_data = request.options link_options = LinkOptions() link_options.delay = options_data.delay link_options.bandwidth = options_data.bandwidth link_options.per = options_data.per link_options.dup = options_data.dup link_options.jitter = options_data.jitter link_options.mer = options_data.mer link_options.burst = options_data.burst link_options.mburst = options_data.mburst link_options.unidirectional = options_data.unidirectional link_options.key = options_data.key link_options.opaque = options_data.opaque session.update_link(node_one, node_two, interface_one_id, interface_two_id, link_options) return core_pb2.EditLinkResponse(result=True) def DeleteLink(self, request, context): logging.debug("delete link: %s", request) session = self.get_session(request.session, context) node_one = request.node_one node_two = request.node_two interface_one = request.interface_one interface_two = request.interface_two session.delete_link(node_one, node_two, interface_one, interface_two) return core_pb2.DeleteLinkResponse(result=True) def GetHooks(self, request, context): logging.debug("get hooks: %s", request) session = self.get_session(request.session, context) hooks = [] for state, state_hooks in session._hooks.iteritems(): for file_name, file_data in state_hooks: hook = core_pb2.Hook(state=state, file=file_name, data=file_data) hooks.append(hook) return core_pb2.GetHooksResponse(hooks=hooks) def AddHook(self, request, context): logging.debug("add hook: %s", request) session = self.get_session(request.session, context) hook = request.hook session.add_hook(hook.state, hook.file, None, hook.data) return core_pb2.AddHookResponse(result=True) def GetMobilityConfigs(self, request, context): logging.debug("get mobility configs: %s", request) session = self.get_session(request.session, context) response = core_pb2.GetMobilityConfigsResponse() for node_id, model_config in session.mobility.node_configurations.iteritems(): if node_id == -1: continue for model_name in model_config.iterkeys(): if model_name != Ns2ScriptedMobility.name: continue config = session.mobility.get_model_config(node_id, model_name) groups = get_config_groups(config, Ns2ScriptedMobility) response.configs[node_id].groups.extend(groups) return response def GetMobilityConfig(self, request, context): logging.debug("get mobility config: %s", request) session = self.get_session(request.session, context) config = session.mobility.get_model_config(request.id, Ns2ScriptedMobility.name) groups = get_config_groups(config, Ns2ScriptedMobility) return core_pb2.GetMobilityConfigResponse(groups=groups) def SetMobilityConfig(self, request, context): logging.debug("set mobility config: %s", request) session = self.get_session(request.session, context) session.mobility.set_model_config(request.id, Ns2ScriptedMobility.name, request.config) return core_pb2.SetMobilityConfigResponse(result=True) def MobilityAction(self, request, context): logging.debug("mobility action: %s", request) session = self.get_session(request.session, context) node = self.get_node(session, request.id, context) result = True if request.action == core_pb2.MOBILITY_START: node.mobility.start() elif request.action == core_pb2.MOBILITY_PAUSE: node.mobility.pause() elif request.action == core_pb2.MOBILITY_STOP: node.mobility.stop(move_initial=True) else: result = False return core_pb2.MobilityActionResponse(result=result) def GetServices(self, request, context): logging.debug("get services: %s", request) services = [] for service in ServiceManager.services.itervalues(): service_proto = core_pb2.Service(group=service.group, name=service.name) services.append(service_proto) return core_pb2.GetServicesResponse(services=services) def GetServiceDefaults(self, request, context): logging.debug("get service defaults: %s", request) session = self.get_session(request.session, context) all_service_defaults = [] for node_type in session.services.default_services: services = session.services.default_services[node_type] service_defaults = core_pb2.ServiceDefaults(node_type=node_type, services=services) all_service_defaults.append(service_defaults) return core_pb2.GetServiceDefaultsResponse(defaults=all_service_defaults) def SetServiceDefaults(self, request, context): logging.debug("set service defaults: %s", request) session = self.get_session(request.session, context) session.services.default_services.clear() for service_defaults in request.defaults: session.services.default_services[service_defaults.node_type] = service_defaults.services return core_pb2.SetServiceDefaultsResponse(result=True) def GetNodeService(self, request, context): logging.debug("get node service: %s", request) session = self.get_session(request.session, context) service = session.services.get_service(request.id, request.service, default_service=True) service_proto = core_pb2.NodeServiceData( executables=service.executables, dependencies=service.dependencies, dirs=service.dirs, configs=service.configs, startup=service.startup, validate=service.validate, validation_mode=service.validation_mode.value, validation_timer=service.validation_timer, shutdown=service.shutdown, meta=service.meta ) return core_pb2.GetNodeServiceResponse(service=service_proto) def GetNodeServiceFile(self, request, context): logging.debug("get node service file: %s", request) session = self.get_session(request.session, context) node = self.get_node(session, request.id, context) service = None for current_service in node.services: if current_service.name == request.service: service = current_service break if not service: context.abort(grpc.StatusCode.NOT_FOUND, "service not found") file_data = session.services.get_service_file(node, request.service, request.file) return core_pb2.GetNodeServiceFileResponse(data=file_data.data) def SetNodeService(self, request, context): logging.debug("set node service: %s", request) session = self.get_session(request.session, context) session.services.set_service(request.id, request.service) service = session.services.get_service(request.id, request.service) service.startup = tuple(request.startup) service.validate = tuple(request.validate) service.shutdown = tuple(request.shutdown) return core_pb2.SetNodeServiceResponse(result=True) def SetNodeServiceFile(self, request, context): logging.debug("set node service file: %s", request) session = self.get_session(request.session, context) session.services.set_service_file(request.id, request.service, request.file, request.data) return core_pb2.SetNodeServiceFileResponse(result=True) def ServiceAction(self, request, context): logging.debug("service action: %s", request) session = self.get_session(request.session, context) node = self.get_node(session, request.id, context) service = None for current_service in node.services: if current_service.name == request.service: service = current_service break if not service: context.abort(grpc.StatusCode.NOT_FOUND, "service not found") status = -1 if request.action == core_pb2.SERVICE_START: status = session.services.startup_service(node, service, wait=True) elif request.action == core_pb2.SERVICE_STOP: status = session.services.stop_service(node, service) elif request.action == core_pb2.SERVICE_RESTART: status = session.services.stop_service(node, service) if not status: status = session.services.startup_service(node, service, wait=True) elif request.action == core_pb2.SERVICE_VALIDATE: status = session.services.validate_service(node, service) result = False if not status: result = True return core_pb2.ServiceActionResponse(result=result) def GetWlanConfig(self, request, context): logging.debug("get wlan config: %s", request) session = self.get_session(request.session, context) config = session.mobility.get_model_config(request.id, BasicRangeModel.name) groups = get_config_groups(config, BasicRangeModel) return core_pb2.GetWlanConfigResponse(groups=groups) def SetWlanConfig(self, request, context): logging.debug("set wlan config: %s", request) session = self.get_session(request.session, context) session.mobility.set_model_config(request.id, BasicRangeModel.name, request.config) return core_pb2.SetWlanConfigResponse(result=True) def GetEmaneConfig(self, request, context): logging.debug("get emane config: %s", request) session = self.get_session(request.session, context) config = session.emane.get_configs() groups = get_config_groups(config, session.emane.emane_config) return core_pb2.GetEmaneConfigResponse(groups=groups) def SetEmaneConfig(self, request, context): logging.debug("set emane config: %s", request) session = self.get_session(request.session, context) config = session.emane.get_configs() config.update(request.config) return core_pb2.SetEmaneConfigResponse(result=True) def GetEmaneModels(self, request, context): logging.debug("get emane models: %s", request) session = self.get_session(request.session, context) models = [] for model in session.emane.models.keys(): if len(model.split("_")) != 2: continue models.append(model) return core_pb2.GetEmaneModelsResponse(models=models) def GetEmaneModelConfig(self, request, context): logging.debug("get emane model config: %s", request) session = self.get_session(request.session, context) model = session.emane.models[request.model] _id = get_emane_model_id(request.id, request.interface) config = session.emane.get_model_config(_id, request.model) groups = get_config_groups(config, model) return core_pb2.GetEmaneModelConfigResponse(groups=groups) def SetEmaneModelConfig(self, request, context): logging.debug("set emane model config: %s", request) session = self.get_session(request.session, context) _id = get_emane_model_id(request.id, request.interface) session.emane.set_model_config(_id, request.model, request.config) return core_pb2.SetEmaneModelConfigResponse(result=True) def GetEmaneModelConfigs(self, request, context): logging.debug("get emane model configs: %s", request) session = self.get_session(request.session, context) response = core_pb2.GetEmaneModelConfigsResponse() for node_id, model_config in session.emane.node_configurations.iteritems(): if node_id == -1: continue for model_name in model_config.iterkeys(): model = session.emane.models[model_name] config = session.emane.get_model_config(node_id, model_name) config_groups = get_config_groups(config, model) node_configurations = response.configs[node_id] node_configurations.model = model_name node_configurations.groups.extend(config_groups) return response def SaveXml(self, request, context): logging.debug("save xml: %s", request) session = self.get_session(request.session, context) _, temp_path = tempfile.mkstemp() session.save_xml(temp_path) with open(temp_path, "rb") as xml_file: data = xml_file.read() return core_pb2.SaveXmlResponse(data=data) def OpenXml(self, request, context): logging.debug("open xml: %s", request) session = self.coreemu.create_session() session.set_state(EventTypes.CONFIGURATION_STATE) _, temp_path = tempfile.mkstemp() with open(temp_path, "wb") as xml_file: xml_file.write(request.data) try: session.open_xml(temp_path, start=True) return core_pb2.OpenXmlResponse(session=session.session_id, result=True) except IOError: logging.exception("error opening session file") self.coreemu.delete_session(session.session_id) context.abort(grpc.StatusCode.INVALID_ARGUMENT, "invalid xml file")