kopia lustrzana https://github.com/Yakifo/amqtt
48 wiersze
1.3 KiB
Python
48 wiersze
1.3 KiB
Python
# Copyright (c) 2015 Nicolas JOUANIN
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#
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# See the file license.txt for copying permission.
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from hbmqtt.mqtt.packet import (
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MQTTPacket,
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MQTTFixedHeader,
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PUBACK,
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PacketIdVariableHeader,
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)
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from hbmqtt.errors import HBMQTTException
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class PubackPacket(MQTTPacket):
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VARIABLE_HEADER = PacketIdVariableHeader
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PAYLOAD = None
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@property
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def packet_id(self):
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return self.variable_header.packet_id
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@packet_id.setter
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def packet_id(self, val: int):
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self.variable_header.packet_id = val
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def __init__(
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self,
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fixed: MQTTFixedHeader = None,
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variable_header: PacketIdVariableHeader = None,
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):
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if fixed is None:
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header = MQTTFixedHeader(PUBACK, 0x00)
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else:
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if fixed.packet_type is not PUBACK:
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raise HBMQTTException(
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"Invalid fixed packet type %s for PubackPacket init"
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% fixed.packet_type
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)
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header = fixed
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super().__init__(header)
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self.variable_header = variable_header
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self.payload = None
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@classmethod
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def build(cls, packet_id: int):
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v_header = PacketIdVariableHeader(packet_id)
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packet = PubackPacket(variable_header=v_header)
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return packet
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