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https://github.com/certbot/certbot.git
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Brad WarrenandGitHub
be5bcfe463
* Stop using already_listening in standalone * remove already_listening * remove psutil entirely * fix #595 * Add basic perform test * make pep8 happy * Add test_perform_eacces * add _setup_perform_error * Add test_perform_unexpected_socket_error * add test_perform_eaddrinuse_no_retry * add test_perform_eaddrinuse_retry * cleanup tests * stop using dnspython * don't install dns extras in tox * remove dns extras from setup.py * Add simple_verify back to DNS response * remove dnspython from oldest tests
39 lines
1.0 KiB
Python
39 lines
1.0 KiB
Python
"""Plugin utilities."""
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import logging
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import os
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from certbot import util
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logger = logging.getLogger(__name__)
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def path_surgery(cmd):
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"""Attempt to perform PATH surgery to find cmd
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Mitigates https://github.com/certbot/certbot/issues/1833
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:param str cmd: the command that is being searched for in the PATH
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:returns: True if the operation succeeded, False otherwise
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"""
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dirs = ("/usr/sbin", "/usr/local/bin", "/usr/local/sbin")
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path = os.environ["PATH"]
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added = []
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for d in dirs:
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if d not in path:
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path += os.pathsep + d
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added.append(d)
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if any(added):
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logger.debug("Can't find %s, attempting PATH mitigation by adding %s",
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cmd, os.pathsep.join(added))
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os.environ["PATH"] = path
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if util.exe_exists(cmd):
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return True
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else:
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expanded = " expanded" if any(added) else ""
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logger.warning("Failed to find %s in%s PATH: %s", cmd,
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expanded, path)
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return False
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