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81 lines
3.2 KiB
Python
81 lines
3.2 KiB
Python
#!/usr/bin/env python3
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# Test whether the broker handles malformed packets correctly - UNSUBSCRIBE
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# MQTTv5
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from mosq_test_helper import *
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rc = 1
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def do_test(unsubscribe_packet, reason_code, error_string, port):
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global rc
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rc = 1
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keepalive = 10
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connect_packet = mosq_test.gen_connect("13-malformed-unsubscribe", proto_ver=5, keepalive=keepalive)
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connack_packet = mosq_test.gen_connack(rc=0, proto_ver=5)
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mid = 0
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disconnect_packet = mosq_test.gen_disconnect(proto_ver=5, reason_code=reason_code)
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sock = mosq_test.do_client_connect(connect_packet, connack_packet, port=port)
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mosq_test.do_send_receive(sock, unsubscribe_packet, disconnect_packet, error_string=error_string)
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rc = 0
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def all_tests(start_broker=False):
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port = mosq_test.get_port()
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if start_broker:
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broker = mosq_test.start_broker(filename=os.path.basename(__file__), port=port)
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try:
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# mid == 0
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unsubscribe_packet = mosq_test.gen_unsubscribe(topic="13-malformed-unsubscribe/test/topic", mid=0, proto_ver=5)
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do_test(unsubscribe_packet, mqtt5_rc.MQTT_RC_MALFORMED_PACKET, "mid == 0", port)
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# command flags != 0x02
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unsubscribe_packet = mosq_test.gen_unsubscribe(topic="13-malformed-unsubscribe/test/topic", mid=1, proto_ver=5, cmd=160)
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do_test(unsubscribe_packet, mqtt5_rc.MQTT_RC_MALFORMED_PACKET, "command flags != 0x02", port)
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# Incorrect property
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props = mqtt5_props.gen_uint32_prop(mqtt5_props.PROP_SESSION_EXPIRY_INTERVAL, 0)
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unsubscribe_packet = mosq_test.gen_unsubscribe(topic="13-malformed-unsubscribe/test/topic", mid=1, proto_ver=5, properties=props)
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do_test(unsubscribe_packet, mqtt5_rc.MQTT_RC_MALFORMED_PACKET, "Incorrect property", port)
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# Truncated packet, no mid
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unsubscribe_packet = struct.pack("!BB", 162, 0)
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do_test(unsubscribe_packet, mqtt5_rc.MQTT_RC_MALFORMED_PACKET, "Truncated packet, no mid", port)
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# Truncated packet, no properties
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unsubscribe_packet = struct.pack("!BBH", 162, 2, 1)
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do_test(unsubscribe_packet, mqtt5_rc.MQTT_RC_MALFORMED_PACKET, "Truncated packet, no properties", port)
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# Truncated packet, with properties field, no topic
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unsubscribe_packet = struct.pack("!BBHH", 162, 4, 1, 0)
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do_test(unsubscribe_packet, mqtt5_rc.MQTT_RC_MALFORMED_PACKET, "Truncated packet, with properties field, no topic", port)
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# Truncated packet, with properties field, empty topic
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unsubscribe_packet = struct.pack("!BBHHH", 162, 5, 1, 0, 0)
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do_test(unsubscribe_packet, mqtt5_rc.MQTT_RC_MALFORMED_PACKET, "Truncated packet, with properties field, empty topic", port)
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# Bad topic
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unsubscribe_packet = mosq_test.gen_unsubscribe(topic="#/13-malformed-unsubscribe/test/topic", mid=1, proto_ver=5)
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do_test(unsubscribe_packet, mqtt5_rc.MQTT_RC_MALFORMED_PACKET, "Bad topic", port)
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except mosq_test.TestError:
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pass
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finally:
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if start_broker:
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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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exit(rc)
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else:
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return rc
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if __name__ == '__main__':
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all_tests(True)
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