#!/usr/bin/env python3
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# Test whether a client message maintains its subscription id when persisted and restored.
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from mosq_test_helper import *
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def write_config(filename, port):
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with open(filename, 'w') as f:
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f.write("port %d\n" % (port))
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f.write("persistence true\n")
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f.write("persistence_file mosquitto-%d.db\n" % (port))
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port = mosq_test.get_port()
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conf_file = os.path.basename(__file__).replace('.py', '.conf')
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write_config(conf_file, port)
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rc = 1
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keepalive = 60
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props = mqtt5_props.gen_uint32_prop(mqtt5_props.PROP_SESSION_EXPIRY_INTERVAL, 100)
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connect_packet = mosq_test.gen_connect(
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"persistent-subscription-test", keepalive=keepalive, clean_session=False, proto_ver=5, properties=props
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)
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connack_packet = mosq_test.gen_connack(rc=0, proto_ver=5)
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connack_packet2 = mosq_test.gen_connack(rc=0, flags=1, proto_ver=5) # session present
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mid = 1
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props = mqtt5_props.gen_varint_prop(mqtt5_props.PROP_SUBSCRIPTION_IDENTIFIER, 53)
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subscribe_packet = mosq_test.gen_subscribe(mid, "subpub/qos1", 1, proto_ver=5, properties=props)
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suback_packet = mosq_test.gen_suback(mid, 1, proto_ver=5)
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mid = 1
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props = mqtt5_props.gen_varint_prop(mqtt5_props.PROP_SUBSCRIPTION_IDENTIFIER, 53)
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publish_packet2 = mosq_test.gen_publish("subpub/qos1", qos=1, mid=mid, payload="message", proto_ver=5, properties=props)
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helper_connect_packet = mosq_test.gen_connect("helper", keepalive=keepalive, clean_session=True, proto_ver=5)
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helper_connack_packet = mosq_test.gen_connack(rc=0, proto_ver=5)
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mid = 1
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helper_publish_packet = mosq_test.gen_publish("subpub/qos1", qos=1, mid=mid, payload="message", proto_ver=5)
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helper_puback_packet = mosq_test.gen_puback(mid, proto_ver=5)
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if os.path.exists('mosquitto-%d.db' % (port)):
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os.unlink('mosquitto-%d.db' % (port))
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broker = mosq_test.start_broker(filename=os.path.basename(__file__), use_conf=True, port=port)
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(stdo1, stde1) = ("", "")
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try:
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sock = mosq_test.do_client_connect(connect_packet, connack_packet, timeout=20, port=port)
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mosq_test.do_send_receive(sock, subscribe_packet, suback_packet, "suback")
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sock.close()
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sock = mosq_test.do_client_connect(helper_connect_packet, helper_connack_packet, timeout=20, port=port)
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mosq_test.do_send_receive(sock, helper_publish_packet, helper_puback_packet, "helper puback")
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sock.close()
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broker.terminate()
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broker.wait()
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(stdo1, stde1) = broker.communicate()
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broker = mosq_test.start_broker(filename=os.path.basename(__file__), use_conf=True, port=port)
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sock = mosq_test.do_client_connect(connect_packet, connack_packet2, timeout=20, port=port)
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if mosq_test.expect_packet(sock, "publish2", publish_packet2):
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rc = 0
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sock.close()
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finally:
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os.remove(conf_file)
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broker.terminate()
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broker.wait()
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(stdo, stde) = broker.communicate()
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if rc:
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print(stde.decode('utf-8'))
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if os.path.exists('mosquitto-%d.db' % (port)):
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os.unlink('mosquitto-%d.db' % (port))
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pass
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exit(rc)
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