35 lines
921 B
Python
35 lines
921 B
Python
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"""
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Parse the operator's Linux identity from /etc/passwd and the environment.
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GECOS format: "Full Name,Room Number,Work Phone,Home Phone,Other"
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We only need the first field (full name).
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"""
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import os
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import pwd
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def current_username() -> str:
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"""Return the current Linux username."""
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return (
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os.environ.get("USER")
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or os.environ.get("LOGNAME")
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or pwd.getpwuid(os.getuid()).pw_name
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)
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def get_gecos_fullname(username: str) -> str:
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"""
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Extract the full name from /etc/passwd GECOS for the given username.
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Falls back to the username itself if GECOS is absent or unparseable.
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"""
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try:
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entry = pwd.getpwnam(username)
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# GECOS may be "Full Name,room,work,home,other" — take the first field
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fullname = entry.pw_gecos.split(",")[0].strip()
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if fullname:
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return fullname
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except KeyError:
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pass
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return username
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