Class: LogStash::Filters::JWTDecode

Inherits:
Base
  • Object
show all
Defined in:
lib/logstash/filters/jwt-decode.rb

Overview

This filter will decode the jwt token in your message event and retrievs the values as specified in ‘extract_fields` and adds the extracted values to the event.

It is only intended to be used as an .

Instance Method Summary collapse

Instance Method Details

#filter(event) ⇒ Object 



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# File 'lib/logstash/filters/jwt-decode.rb', line 40

def filter(event)
  decoded_token = JWT.decode event.get(@match), @key, false, {algorithm: @signature_alg}    
  @extract_fields.each do |k, v| 
    event.set(k , getValueFromDecodedToken(v, decoded_token[0]))
  end
  # filter_matched should go in the last line of our successful code
  filter_matched(event)
end

#register ⇒ Object 



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# File 'lib/logstash/filters/jwt-decode.rb', line 32

def register
  # Add instance variables
  if not ['NONE', 'HMAC', 'RSASSA', 'ECDSA'].include? @signature_alg
    raise LogStash::ConfigurationError, "JWTDecode plugin: Invalid signature_alg '#{@signature_alg}' must be one of NONE, HMAC, RSASSA and ECDSA"
  end  
end