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42 lines
933 B
Python
Executable File
42 lines
933 B
Python
Executable File
#!/usr/bin/env python
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import logging
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import signal
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import sys
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log = logging.getLogger(__name__)
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TIMEOUT = 5
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try:
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import pam
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except ImportError:
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log.debug("PAM auth helper: Could not import pam module")
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sys.exit(1)
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def handle_timeout(signum, stack):
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raise OSError("Timed out reading input")
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# set timeout so we don't block on reading stdin
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signal.alarm(TIMEOUT)
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pam_service = sys.stdin.readline().strip()
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pam_username = sys.stdin.readline().strip()
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pam_password = sys.stdin.readline().strip()
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# cancel the alarm
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signal.alarm(0)
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p_auth = pam.pam()
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authenticated = p_auth.authenticate(pam_username, pam_password, service=pam_service)
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if authenticated:
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log.debug(f"PAM auth helper: authentication successful for {pam_username}")
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sys.stdout.write("True\n")
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sys.exit(0)
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else:
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log.debug(f"PAM auth helper: authentication failed for {pam_username}")
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sys.stdout.write("False\n")
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sys.exit(1)
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