1 #!/usr/bin/python 2 3 import datetime 4 import getpass 5 import optparse 6 import os 7 import socket 8 9 10 def read_loascertstatus(): 11 # prodcertstatus --simple_output returns the #of seconds remaining before the 12 # cert is expired. 13 f = os.popen('prodcertstatus --simple_output | grep LOAS') 14 loas_expire = int(f.read().split(':')[1]) 15 f.close() 16 return loas_expire 17 18 19 def main(): 20 parser = optparse.OptionParser() 21 parser.add_option('--expire_within', help='Send email if cert will expire ' 22 'within this time window in seconds.', 23 type='int', dest='expire_within', default=24*3600) 24 parser.add_option('--to', help='Comma separated Email notification TO ' 25 'recipients.', dest='to', type='string', default='') 26 parser.add_option('--cc', help='Comma separated Email notification CC ' 27 'recipients.', dest='cc', type='string', default='') 28 options, _ = parser.parse_args() 29 30 loas_expire = read_loascertstatus() 31 host = socket.gethostname() 32 if loas_expire < options.expire_within: 33 tt = datetime.timedelta(seconds=loas_expire) 34 body_text = ('prod access cert (LOAS) for %s will expire within %s on %s.' 35 % (getpass.getuser(), tt, host)) 36 if not options.to: 37 print body_text 38 else: 39 email_to = ['%s (at] google.com' % to.strip() for to in options.to.split(',')] 40 41 p = os.popen('/usr/sbin/sendmail -t', 'w') 42 p.write('To: %s\n' % ','.join(email_to)) 43 if options.cc: 44 email_cc = ['%s (at] google.com' % cc.strip() 45 for cc in options.cc.split(',')] 46 p.write('Cc: %s\n' % ','.join(email_cc)) 47 48 p.write('Subject: Prod access cert (LOAS) for %s will expire soon on %s.' 49 '\n' % (getpass.getuser(), host)) 50 p.write('Content-Type: text/plain') 51 p.write('\n') # blank line separating headers from body 52 p.write(body_text) 53 p.write('\n') 54 return_code = p.close() 55 if return_code is not None: 56 print 'Sendmail exit status %s' % return_code 57 58 59 if __name__ == '__main__': 60 main() 61
