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40 lines
1.2 KiB
Python
40 lines
1.2 KiB
Python
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# SPDX-License-Identifier: BSD-3-Clause
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class MqttError(Exception):
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"""Base exception for all asyncio-mqtt exceptions."""
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pass
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class MqttCodeError(MqttError):
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def __init__(self, rc, *args):
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super().__init__(*args)
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self.rc = rc
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def __str__(self):
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return f'[code:{self.rc}] {super().__str__()}'
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class MqttConnectError(MqttCodeError):
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def __init__(self, rc):
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msg = "Connection refused"
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try:
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msg += f": {_CONNECT_RC_STRINGS[rc]}"
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except KeyError:
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pass
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super().__init__(rc, msg)
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_CONNECT_RC_STRINGS = {
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# Reference: https://github.com/eclipse/paho.mqtt.python/blob/v1.5.0/src/paho/mqtt/client.py#L1898
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# 0: Connection successful
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# 1: Connection refused - incorrect protocol version
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1: "Incorrect protocol version",
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# 2: Connection refused - invalid client identifier
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2: "Invalid client identifier",
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# 3: Connection refused - server unavailable
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3: "Server unavailable",
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# 4: Connection refused - bad username or password
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4: "Bad username or password",
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# 5: Connection refused - not authorised
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5: "Not authorised"
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# 6-255: Currently unused.
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}
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