74 lines
2.5 KiB
Python
74 lines
2.5 KiB
Python
import time
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from zeroconf import IPVersion, ServiceBrowser, ServiceInfo, Zeroconf
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from typing import Callable, List
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class ZeroconfDevice(object):
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# To do: replace with nymea serviceBrowser
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def __init__(self, name: str, ip: str, port: int, model: str, id: str) -> None:
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self.name = name
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self.ip = ip
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self.port = port
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self.model = model
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self.id = id
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def __repr__(self) -> str:
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return f"{type(self).__name__}({self.__dict__})"
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def __eq__(self, other) -> bool:
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return self is other or self.__dict__ == other.__dict__
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class ZeroconfListener(object):
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# To do: replace with nymea serviceBrowser
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"""Basic zeroconf listener."""
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def __init__(self, func: Callable[[ServiceInfo], None]) -> None:
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"""Initialize zeroconf listener with function callback."""
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self._func = func
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def __repr__(self) -> str:
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return f"{type(self).__name__}({self.__dict__})"
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def __eq__(self, other) -> bool:
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return self is other or self.__dict__ == other.__dict__
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def add_service(self, zeroconf: Zeroconf, type: str, name: str) -> None:
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"""Callback function when zeroconf service is discovered."""
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self._func(zeroconf.get_service_info(type, name))
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def update_service(self, zeroconf: Zeroconf, type: str, name: str) -> None:
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return
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def remove_service(self, zeroconf: Zeroconf, type: str, name: str) -> None:
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return
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def discover(service_type: str, timeout: int = 5) -> List[ZeroconfDevice]:
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# To do: replace with nymea serviceBrowser
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"""From pyvizio: Return all discovered zeroconf services of a given service type over given timeout period."""
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services = []
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def append_service(info: ServiceInfo) -> None:
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"""Append discovered zeroconf service to service list."""
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name = info.name[: -(len(info.type) + 1)]
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ip = info.parsed_addresses(IPVersion.V4Only)[0]
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port = info.port
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model = info.properties.get(b"name", "")
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id = info.properties.get(b"id")
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# handle id decode for various discovered use cases
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if isinstance(id, bytes):
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try:
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int(id, 16)
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except Exception:
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id = id.hex()
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else:
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id = None
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service = ZeroconfDevice(name, ip, port, model, id)
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services.append(service)
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zeroconf = Zeroconf()
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ServiceBrowser(zeroconf, service_type, ZeroconfListener(append_service))
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time.sleep(timeout)
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zeroconf.close()
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return services |