#
# A script to:
#  check for mount requests in data protector (so we know somebody needs a tape)
#  provide nagios output for monitoring
#  provide a nagios return code.  0=ok, 1=warning, 2=critical, 3=unknown
#
# Author: Derek Jones, CQUniversity Australia, Apr 2016
#
# Version: 1.0

# An exmaple output from "omnistat -mount" :

#$output ="SessionID          Type            Status             User
#==============================================
#2014/02/07-9     Backup   Mount Request   username1\@domain.com
#2014/02/07-9     Restore   Mount Request   username2\@domain.com
#
#"

# use the Data Protector omnistat command to look for any mount requests
$output = cmd /c omnistat -mount

$warnings = @();

$returnState = 3; # unknown

# Loop over each line of the output
foreach ( $line in $output.split("`r`n") )
{
  # skip the headers
  if ( $line -like "*SessionID*" )
  {
    continue;
  }

  # should be actual output from here on
  if ( ( $line -like "*no required sessions are running*" ) -or ( $line -like "*no currently running sessions*" ) )
  {
    "OK: $output";
    exit 0; # OK
  }
  else
  {
    # we only want any line with "mount request" written on it
    if ( $line -like "*mount request*" )
    {
      # break the line up into an array
      $fields = ($line -replace '\s+', ' ').split()

      # grab the fields we need... session, type and user
      $session        = $fields[0];
      $session_type   = $fields[1];
      $user           = $fields[4];
      $warnings+="Mount request for '$user' in session $session ($session_type)";
      $returnState=2; # we want this go critical
    }
  }
}

$string = $warnings -join ', ';
"CRITICAL: " + $string;

exit $returnState;