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22 lines
502 B
Python
22 lines
502 B
Python
"""Phase 12 — async coroutine, benign."""
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import asyncio
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import re
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import subprocess
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_VALID_HOST = re.compile(r"^[A-Za-z0-9.-]{1,253}$")
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async def run_ping(host):
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await asyncio.sleep(0)
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if not _VALID_HOST.fullmatch(host or ""):
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print("invalid host")
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return
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result = subprocess.run(
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["ping", "-c", "1", host],
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shell=False,
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capture_output=True,
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text=True,
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timeout=5,
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)
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print(result.stdout)
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print(result.stderr, end="")
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