26 lines
648 B
Python
26 lines
648 B
Python
from curio import TaskGroup
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from curio.socket import getaddrinfo, gaierror
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from collections.abc import Iterable, AsyncIterator
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from typing import NamedTuple
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class Result(NamedTuple):
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domain: str
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found: bool
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async def probe(domain: str) -> Result:
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try:
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await getaddrinfo(domain, None)
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except gaierror:
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return Result(domain, False)
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return Result(domain, True)
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async def multi_probe(domains: Iterable[str]) -> AsyncIterator[Result]:
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async with TaskGroup() as group:
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for domain in domains:
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await group.spawn(probe, domain)
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async for task in group:
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yield task.result
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