29 lines
909 B
Python
29 lines
909 B
Python
import os
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import os.path
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from pip._internal.compat import get_path_uid
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def check_path_owner(path):
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# If we don't have a way to check the effective uid of this process, then
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# we'll just assume that we own the directory.
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if not hasattr(os, "geteuid"):
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return True
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previous = None
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while path != previous:
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if os.path.lexists(path):
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# Check if path is writable by current user.
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if os.geteuid() == 0:
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# Special handling for root user in order to handle properly
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# cases where users use sudo without -H flag.
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try:
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path_uid = get_path_uid(path)
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except OSError:
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return False
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return path_uid == 0
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else:
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return os.access(path, os.W_OK)
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else:
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previous, path = path, os.path.dirname(path)
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