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browser.py
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executable file
·89 lines (72 loc) · 2.63 KB
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#!/usr/bin/env python
"""Example of browsing for a service.
The default is HTTP and HAP; use --find to search for all available services in the network
"""
from __future__ import annotations
import argparse
import logging
from time import sleep
from typing import cast
from zeroconf import (
IPVersion,
ServiceBrowser,
ServiceStateChange,
Zeroconf,
ZeroconfServiceTypes,
)
def on_service_state_change(
zeroconf: Zeroconf, service_type: str, name: str, state_change: ServiceStateChange
) -> None:
print(f"Service {name} of type {service_type} state changed: {state_change}")
if state_change is ServiceStateChange.Added:
info = zeroconf.get_service_info(service_type, name)
print(f"Info from zeroconf.get_service_info: {info!r}")
if info:
addresses = [f"{addr}:{cast(int, info.port)}" for addr in info.parsed_scoped_addresses()]
print(f" Addresses: {', '.join(addresses)}")
print(f" Weight: {info.weight}, priority: {info.priority}")
print(f" Server: {info.server}")
if info.properties:
print(" Properties are:")
for key, value in info.properties.items():
print(f" {key!r}: {value!r}")
else:
print(" No properties")
else:
print(" No info")
print("\n")
if __name__ == "__main__":
logging.basicConfig(level=logging.DEBUG)
parser = argparse.ArgumentParser()
parser.add_argument("--debug", action="store_true")
parser.add_argument("--find", action="store_true", help="Browse all available services")
version_group = parser.add_mutually_exclusive_group()
version_group.add_argument("--v6-only", action="store_true")
version_group.add_argument("--v4-only", action="store_true")
args = parser.parse_args()
if args.debug:
logging.getLogger("zeroconf").setLevel(logging.DEBUG)
if args.v6_only:
ip_version = IPVersion.V6Only
elif args.v4_only:
ip_version = IPVersion.V4Only
else:
ip_version = IPVersion.All
zeroconf = Zeroconf(ip_version=ip_version)
services = [
"_http._tcp.local.",
"_hap._tcp.local.",
"_esphomelib._tcp.local.",
"_airplay._tcp.local.",
]
if args.find:
services = list(ZeroconfServiceTypes.find(zc=zeroconf))
print(f"\nBrowsing {len(services)} service(s), press Ctrl-C to exit...\n")
browser = ServiceBrowser(zeroconf, services, handlers=[on_service_state_change])
try:
while True:
sleep(0.1)
except KeyboardInterrupt:
pass
finally:
zeroconf.close()