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133 lines
3.5 KiB
Python
133 lines
3.5 KiB
Python
#!/usr/bin/env python3
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# tests that bridge configuration is reloaded on signal
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from mosq_test_helper import *
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import signal
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def write_config(filename, port1, port2, subtopic, reload_immediate=False):
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with open(filename, 'w') as f:
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f.write("listener %d\n" % (port2))
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f.write("allow_anonymous true\n")
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f.write("\n")
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f.write("connection bridge_sample\n")
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f.write("address 127.0.0.1:%d\n" % (port1))
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f.write("topic # in 0 local/topic/ remote/%s/\n" % (subtopic))
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f.write("notifications false\n")
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f.write("restart_timeout 1\n")
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if reload_immediate:
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f.write("bridge_reload_type immediate\n")
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f.write("bridge_max_topic_alias 0\n")
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def accept_new_connection(sock):
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conn, _ = sock.accept()
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conn.settimeout(20)
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client_id = socket.gethostname()+".bridge_sample"
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connect_packet = mosq_test.gen_connect(
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client_id, clean_session=False, proto_ver=0x84)
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connack_packet = mosq_test.gen_connack()
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mosq_test.expect_packet(conn, "connect", connect_packet)
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conn.send(connack_packet)
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return conn
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def accept_subscription(socket, topic, mid=1, qos=0):
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subscribe_packet = mosq_test.gen_subscribe(mid, topic, qos)
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suback_packet = mosq_test.gen_suback(mid, qos)
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mosq_test.expect_packet(socket, "subscribe", subscribe_packet)
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socket.send(suback_packet)
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def start_fake_broker(port):
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sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
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sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
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sock.settimeout(3)
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sock.bind(('', port))
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sock.listen(5)
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return sock
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def expect_no_incoming_connection(sock):
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try:
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accept_new_connection(sock) # will timeout if nothing comes in
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raise mosq_test.TestError # hence, it shouldn't reach this
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except socket.timeout:
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pass
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def do_test():
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rc = 1
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port1, port2 = mosq_test.get_port(2)
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conf_file = os.path.basename(__file__).replace('.py', '.conf')
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try:
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ssock = start_fake_broker(port1)
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write_config(conf_file, port1, port2, "topic1", True)
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broker = mosq_test.start_broker(
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filename=os.path.basename(__file__), port=port2, use_conf=True)
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bridge = accept_new_connection(ssock)
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accept_subscription(bridge, "remote/topic1/#")
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write_config(conf_file, port1, port2, "topic2", True)
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broker.send_signal(signal.SIGHUP)
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bridge = accept_new_connection(ssock) # immediate reload forces a reconnection
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accept_subscription(bridge, "remote/topic2/#")
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write_config(conf_file, port1, port2, "topic3", False)
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broker.send_signal(signal.SIGHUP)
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expect_no_incoming_connection(ssock) # as it was set to lazy reload
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bridge.close()
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bridge = accept_new_connection(ssock)
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accept_subscription(bridge, "remote/topic3/#")
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rc = 0
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except mosq_test.TestError:
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pass
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finally:
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try:
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broker.terminate()
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if mosq_test.wait_for_subprocess(broker):
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print("broker not terminated")
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if rc == 0: rc=1
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_, stde = broker.communicate()
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if rc:
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print(stde.decode('utf-8'))
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except NameError:
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pass
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try:
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os.remove(conf_file)
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except FileNotFoundError:
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pass
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try:
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bridge.close()
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except NameError:
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pass
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try:
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ssock.close()
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except NameError:
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pass
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return rc
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exit_code = do_test()
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exit(exit_code)
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