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Simple asyncio socket DNS to IP resolver
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import socket | |
import asyncio | |
from urllib.parse import urlsplit | |
async def get(url): | |
url = urlsplit(url) | |
hostname = url.hostname | |
if url.scheme == 'https': | |
port = url.port or 443 | |
else: | |
port = url.port or 80 | |
loop = asyncio.get_running_loop() | |
try: | |
# family, type, proto, canonname, sockaddr | |
info = await loop.getaddrinfo(hostname, port, proto=socket.IPPROTO_TCP) | |
return { | |
'name': url.hostname, | |
'ips': [sockaddr[0] for (family, type, proto, canonname, sockaddr) in info] | |
} | |
except socket.gaierror: | |
return { | |
'name': url.hostname, | |
'ips': [] | |
} | |
if __name__ == '__main__': | |
names = [ | |
'https://yandex.ru', | |
'https://ya.ru', | |
'https://google.com', | |
'https://youtube.com', | |
] | |
loop = asyncio.get_event_loop() | |
tasks = asyncio.gather(*[get(name) for name in names]) | |
result = loop.run_until_complete(tasks) | |
loop.close() | |
print(result) |
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