Class: LogStash::Filters::Ezproxy

Inherits:
Base
  • Object
show all
Defined in:
lib/logstash/filters/ezproxy.rb

Overview

This filter will replace the contents of the default message field with whatever you specify in the configuration.

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/ezproxy.rb', line 47

def filter(event)
  url = event.get(@url)
  data = {}
  uri = URI(URI::extract(url)[0])

  # if (uri.host == "ezproxy.lancs.ac.uk")
  #   if (uri.query)
  #     puts uri
  #     params = CGI::parse(uri.query)
  #     if params.key?('url')
  #       uri = URI(params['url'][0])
  #     elsif params.key?('qurl')
  #       uri = URI(params['qurl'][0])
  #     end
  #     event.tag("requested_host_ezproxy")
  #     event.set("requested_host", uri.host)
  #   end
  # end

  case
  when uri.host.include?("www.jstor.org")
    data = Jstor::parse(uri.to_s)
  when uri.host.include?("www.lexisnexis.com")
    data = LexisNexis::parse(uri.to_s)
  when uri.host.include?("journals.sagepub.com")
    data = Sage::parse(uri.to_s)
  when uri.host.include?("onlinelibrary.wiley.com")
    data = Wiley::parse(uri.to_s)
  when uri.host.include?("www.sciencedirect.com")
    data = ScienceDirect::parse(uri.to_s)
  when uri.host.include?("www.dawsonera.com")
    data = DawsonEra::parse(uri.to_s)
  when uri.host.include?("www.tandfonline.com")
    data = TandF::parse(uri.to_s)
  when uri.host.include?("www.emeraldinsight.com")
    data = Emerald::parse(uri.to_s)
  when uri.host.include?("ebscohost.com")
    data = Ebscohost::parse(uri.to_s)
  end
  event.set("request_metadata", data)
  event.tag("ezproxy_parse_success")


  # 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/ezproxy.rb', line 42

def register
  # Add instance variables 
end