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browser.py
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executable file
·82 lines (66 loc) · 2.52 KB
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#!/usr/bin/env python3
""" Example of browsing for a service.
The default is HTTP and HAP; use --find to search for all available services in the network
"""
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("Info from zeroconf.get_service_info: %r" % (info))
if info:
addresses = ["%s:%d" % (addr, cast(int, info.port)) for addr in info.parsed_scoped_addresses()]
print(" Addresses: %s" % ", ".join(addresses))
print(" Weight: %d, priority: %d" % (info.weight, 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', action='store_true')
version_group.add_argument('--v6-only', action='store_true')
args = parser.parse_args()
if args.debug:
logging.getLogger('zeroconf').setLevel(logging.DEBUG)
if args.v6:
ip_version = IPVersion.All
elif args.v6_only:
ip_version = IPVersion.V6Only
else:
ip_version = IPVersion.V4Only
zeroconf = Zeroconf(ip_version=ip_version)
services = ["_http._tcp.local.", "_hap._tcp.local."]
if args.find:
services = list(ZeroconfServiceTypes.find(zc=zeroconf))
print("\nBrowsing %d service(s), press Ctrl-C to exit...\n" % len(services))
browser = ServiceBrowser(zeroconf, services, handlers=[on_service_state_change])
try:
while True:
sleep(0.1)
except KeyboardInterrupt:
pass
finally:
zeroconf.close()