X-Git-Url: https://git.ralfj.de/lets-encrypt-tiny.git/blobdiff_plain/6bec79902ed949d566ae6c0e884570365a91f3b7..6a5c5964604124bfc0d5caf625c837c94c5fd123:/certcheck?ds=inline diff --git a/certcheck b/certcheck index dc9e9ef..065fe0f 100755 --- a/certcheck +++ b/certcheck @@ -1,42 +1,18 @@ #!/usr/bin/python3 -## Usage: -## ./certcheck -d DAYS ... -## Recursively crawl all given folders for files ending in '.crt', and check all of them and all given files for their -## expiry date. If that is less than DAYS in the future, print that information. +## Call with "--help" for documentation. -import argparse, subprocess, re, os, datetime +import argparse, certcheck -def check_dir(dirname, days): - for name in os.listdir(dirname): - name = os.path.join(dirname, name) - if os.path.isdir(name): - check_dir(name, days) - elif name.endswith('.crt'): - check_file(name, days) +parser = argparse.ArgumentParser(description='Check for soon-to-expire (and already expired) certificates') +parser.add_argument("-d", "--days", metavar='N', + dest="days", type=int, default=14, + help="Warn about certificates valid for less than N (default 14).") +parser.add_argument("certs", metavar='CERTS', nargs='+', + help="These certificate files are checked. Directories are searched recursively for files called '*.crt'.") +args = parser.parse_args() -def check_file(filename, days): - valid_not_after = subprocess.check_output(["openssl", "x509", "-enddate", "-in", filename, "-out", "/dev/null"]).decode('utf-8') - match = re.match("notAfter=([a-zA-Z0-9: ]+)", valid_not_after) - assert match is not None, "Unexpected output from openssl: valid_not_after" - enddate = match.group(1) - enddate = datetime.datetime.strptime(enddate, '%b %d %X %Y %Z') - delta = enddate - datetime.datetime.now() - if delta < datetime.timedelta(days=days): - print("{} expires at {}, which is in {} days".format(filename, enddate, delta.days)) - -if __name__ == "__main__": - parser = argparse.ArgumentParser(description='Check for soon-to-expire (and already expired) certificates') - parser.add_argument("-d", "--days", metavar='N', - dest="days", type=int, default=14, - help="Warn about certificates valid for less than N (default 7)") - parser.add_argument("certs", metavar='CERTS', nargs='+', - help="These certificate files are checked. Directories are searched recursively for files called '*.crt'.") - args = parser.parse_args() - - for name in args.certs: - if os.path.isdir(name): - check_dir(name, args.days) - else: - check_file(name, args.days) - - +for name in args.certs: + if os.path.isdir(name): + certcheck.check_dir(name, args.days) + else: + certcheck.check_file(name, args.days)