Is Python the only supported language, or can I create a custom command or macro via Ruby?

[daniel333]

All,

A vendor just sent me this script to decode their vendor message table. It's not just a simple lookup, but a concatenation with several events. I see guides on Python. Is that the only supported language for custom commands? Should I just use Python to wrap this? Any guides on this?

thanks!

#!/usr/bin/env ruby
# to use:
#   chmod 744 threat_extract.rb
#   ./threat_extract.rb $THREATS_NUMBER

arg = ARGV.first.to_i

hsh = {
     1 => 'Known Violators',
     2 => 'Blocked Country',
     4 => 'Browser Integrity Check',
     8 => 'Known Violator User Agent',
    16 => 'Rate Limited',
    32 => 'Known Violator Honeypot Access',
    64 => 'Referrer Block',
   128 => 'Session Length Exceeded',
   256 => 'Pages Per Session Exceeded',
   512 => 'Bad User Agents',
  1024 => 'Aggregator User Agents',
  2048 => 'Filtered IP',
  4096 => 'JavaScript Not Loaded',
  8192 => 'JavaScript Check Failed',
 16384 => 'Identifier Validation Error',
 32768 => 'Known Violator Automation Tool',
 65536 => 'Form Spam Submission',
131072 => 'Unverified Signature',
262144 => 'IP Pinning Failure',
524288 => 'Invalid JavaScript Test Results',
1048576 => 'Organization Block',
2097152 => 'Known Violator Data Center'
}

puts *hsh.reject { |(k, v)| (k & arg).zero? }.map {|(k, v)| "#{k} => #{v}"}

[woodcock]

IMHO, this is a simple enough script, I would go ahead and port it to python as a scripted/external lookup. It is well worth the exercise and once you have done it once, you can add that to your Splunk toolbox.