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| 1 | +#!/usr/bin/env python3 |
| 2 | + |
| 3 | +""" Example of browsing for a service. |
| 4 | +
|
| 5 | +The default is HTTP and HAP; use --find to search for all available services in the network |
| 6 | +""" |
| 7 | + |
| 8 | +import argparse |
| 9 | +import asyncio |
| 10 | +import logging |
| 11 | +from typing import cast |
| 12 | + |
| 13 | +from zeroconf import IPVersion, ServiceStateChange |
| 14 | +from zeroconf.asyncio import AsyncServiceBrowser, AsyncZeroconf |
| 15 | + |
| 16 | + |
| 17 | +def async_on_service_state_change( |
| 18 | + zeroconf: AsyncZeroconf, service_type: str, name: str, state_change: ServiceStateChange |
| 19 | +) -> None: |
| 20 | + print("Service %s of type %s state changed: %s" % (name, service_type, state_change)) |
| 21 | + if state_change is not ServiceStateChange.Added: |
| 22 | + return |
| 23 | + asyncio.ensure_future(async_display_service_info(zeroconf, service_type, name)) |
| 24 | + |
| 25 | + |
| 26 | +async def async_display_service_info(zeroconf: AsyncZeroconf, service_type: str, name: str) -> None: |
| 27 | + info = await zeroconf.async_get_service_info(service_type, name) |
| 28 | + print("Info from zeroconf.get_service_info: %r" % (info)) |
| 29 | + if info: |
| 30 | + addresses = ["%s:%d" % (addr, cast(int, info.port)) for addr in info.parsed_addresses()] |
| 31 | + print(" Name: %s" % name) |
| 32 | + print(" Addresses: %s" % ", ".join(addresses)) |
| 33 | + print(" Weight: %d, priority: %d" % (info.weight, info.priority)) |
| 34 | + print(" Server: %s" % (info.server,)) |
| 35 | + if info.properties: |
| 36 | + print(" Properties are:") |
| 37 | + for key, value in info.properties.items(): |
| 38 | + print(" %s: %s" % (key, value)) |
| 39 | + else: |
| 40 | + print(" No properties") |
| 41 | + else: |
| 42 | + print(" No info") |
| 43 | + print('\n') |
| 44 | + |
| 45 | + |
| 46 | +if __name__ == '__main__': |
| 47 | + logging.basicConfig(level=logging.DEBUG) |
| 48 | + |
| 49 | + parser = argparse.ArgumentParser() |
| 50 | + parser.add_argument('--debug', action='store_true') |
| 51 | + version_group = parser.add_mutually_exclusive_group() |
| 52 | + version_group.add_argument('--v6', action='store_true') |
| 53 | + version_group.add_argument('--v6-only', action='store_true') |
| 54 | + args = parser.parse_args() |
| 55 | + |
| 56 | + if args.debug: |
| 57 | + logging.getLogger('zeroconf').setLevel(logging.DEBUG) |
| 58 | + if args.v6: |
| 59 | + ip_version = IPVersion.All |
| 60 | + elif args.v6_only: |
| 61 | + ip_version = IPVersion.V6Only |
| 62 | + else: |
| 63 | + ip_version = IPVersion.V4Only |
| 64 | + |
| 65 | + aiozc = AsyncZeroconf(ip_version=ip_version) |
| 66 | + |
| 67 | + services = ["_http._tcp.local.", "_hap._tcp.local."] |
| 68 | + print("\nBrowsing %s service(s), press Ctrl-C to exit...\n" % services) |
| 69 | + aiobrowser = AsyncServiceBrowser(aiozc, services, handlers=[async_on_service_state_change]) |
| 70 | + |
| 71 | + loop = asyncio.get_event_loop() |
| 72 | + try: |
| 73 | + loop.run_forever() |
| 74 | + except KeyboardInterrupt: |
| 75 | + pass |
| 76 | + finally: |
| 77 | + loop.run_until_complete(aiobrowser.async_cancel()) |
| 78 | + loop.run_until_complete(aiozc.async_close()) |
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