#!/usr/bin/env python3 # Test whether a client message maintains its subscription id when persisted and restored. from mosq_test_helper import * def write_config(filename, port): with open(filename, 'w') as f: f.write("port %d\n" % (port)) f.write("persistence true\n") f.write("persistence_file mosquitto-%d.db\n" % (port)) port = mosq_test.get_port() conf_file = os.path.basename(__file__).replace('.py', '.conf') write_config(conf_file, port) rc = 1 keepalive = 60 connect_packet = mosq_test.gen_connect( "persistent-subscription-test", keepalive=keepalive, clean_session=False, proto_ver=5, session_expiry=60 ) connack_packet = mosq_test.gen_connack(rc=0, proto_ver=5) connack_packet2 = mosq_test.gen_connack(rc=0, flags=1, proto_ver=5) # session present mid = 1 props = mqtt5_props.gen_varint_prop(mqtt5_props.PROP_SUBSCRIPTION_IDENTIFIER, 53) subscribe_packet = mosq_test.gen_subscribe(mid, "subpub/qos1", 1, proto_ver=5, properties=props) suback_packet = mosq_test.gen_suback(mid, 1, proto_ver=5) mid = 1 props = mqtt5_props.gen_varint_prop(mqtt5_props.PROP_SUBSCRIPTION_IDENTIFIER, 53) publish_packet2 = mosq_test.gen_publish("subpub/qos1", qos=1, mid=mid, payload="message", proto_ver=5, properties=props) helper_connect_packet = mosq_test.gen_connect("helper", keepalive=keepalive, clean_session=True, proto_ver=5) helper_connack_packet = mosq_test.gen_connack(rc=0, proto_ver=5) mid = 1 helper_publish_packet = mosq_test.gen_publish("subpub/qos1", qos=1, mid=mid, payload="message", proto_ver=5) helper_puback_packet = mosq_test.gen_puback(mid, proto_ver=5) if os.path.exists('mosquitto-%d.db' % (port)): os.unlink('mosquitto-%d.db' % (port)) broker = mosq_test.start_broker(filename=os.path.basename(__file__), use_conf=True, port=port) (stdo1, stde1) = ("", "") try: sock = mosq_test.do_client_connect(connect_packet, connack_packet, timeout=20, port=port) mosq_test.do_send_receive(sock, subscribe_packet, suback_packet, "suback") sock.close() sock = mosq_test.do_client_connect(helper_connect_packet, helper_connack_packet, timeout=20, port=port) mosq_test.do_send_receive(sock, helper_publish_packet, helper_puback_packet, "helper puback") sock.close() broker.terminate() broker.wait() (stdo1, stde1) = broker.communicate() broker = mosq_test.start_broker(filename=os.path.basename(__file__), use_conf=True, port=port) sock = mosq_test.do_client_connect(connect_packet, connack_packet2, timeout=20, port=port) if mosq_test.expect_packet(sock, "publish2", publish_packet2): rc = 0 sock.close() finally: os.remove(conf_file) broker.terminate() broker.wait() (stdo, stde) = broker.communicate() if rc: print(stde.decode('utf-8')) if os.path.exists('mosquitto-%d.db' % (port)): os.unlink('mosquitto-%d.db' % (port)) pass exit(rc)