Class: Fluent::SendGridEventInput

Inherits:
Input
  • Object
show all
Defined in:
lib/fluent/plugin/in_sendgrid_event.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ SendGridEventInput

Returns a new instance of SendGridEventInput.



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# File 'lib/fluent/plugin/in_sendgrid_event.rb', line 21

def initialize
  super
end

Instance Method Details

#configure(conf) ⇒ Object 



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# File 'lib/fluent/plugin/in_sendgrid_event.rb', line 25

def configure(conf)
  log.trace "in_sendgrid_event: configure"
  super

  if @tag.nil?
    raise Fluent::ConfigError, "sendgrid_event: 'tag' parameter is required"
  end
end

#emit_event(event) ⇒ Object

The end of run method



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# File 'lib/fluent/plugin/in_sendgrid_event.rb', line 101

def emit_event(event)
  log.trace "in_sendgrid_event: emit_event"
  Engine.emit("#{tag}", Engine.now, event)
end

#run ⇒ Object 



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# File 'lib/fluent/plugin/in_sendgrid_event.rb', line 49

def run
  log.trace "in_sendgrid_event: run"
  listen = {
    :BindAddress => @host,
    :Port => @port
  }
  if @ssl
    if File.exists?(@certificate) && File.exists?(@private_key)
      listen[:SSLEnable] = @ssl
      listen[:SSLCertificate] = OpenSSL::X509::Certificate.new(open(@certificate).read)
      listen[:SSLPrivateKey] = OpenSSL::PKey::RSA.new(open(@private_key).read)
    else
      log.error "in_sendgrid_event: couldn't find certificate: '#{@certificate}' or ssl key: '#{@private_key}'"
    end
  end
  if @username && @password
    listen[:RequestCallback] = lambda do |req, res|
      WEBrick::HTTPAuth.basic_auth(req, res, "fluent-plugin-sendgrid-event") do |username, password|
        username == @username && password == @password
      end
    end
  end

  @server = WEBrick::HTTPServer.new(listen)
  @server.mount_proc(@request_uri) do |req, res|
    begin
      if req.request_method == "POST" && req.body
        events = JSON.parse(req.body)
        events.each do |event|
          emit_event(event)
        end
        log.trace "in_sendgrid_event: success"
        res.status = 200
      else
        log.error "in_sendgrid_event: invalid request"
        res.status = 400
      end
    rescue JSON::ParserError => e
      log.error "in_sendgrid_event: #{e}"
      res.status = 400
    rescue WEBrick::HTTPStatus::LengthRequired => e
      log.error "in_sendgrid_event: #{e}"
      res.status = 411
    rescue Exception => e
      log.warn "in_sendgrid_event: Retry: Reason: #{e}"
      log.warn "#{e.backtrace.join('\n')}"
      res.status = 503
    end
  end
  @server.start
end

#shutdown ⇒ Object 



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# File 'lib/fluent/plugin/in_sendgrid_event.rb', line 41

def shutdown
  log.trace "in_sendgrid_event: shutdown"
  super

  @server.shutdown
  Thread.kill(@thread)
end

#start ⇒ Object 



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# File 'lib/fluent/plugin/in_sendgrid_event.rb', line 34

def start
  log.trace "in_sendgrid_event: start"
  super

  @thread = Thread.new(&method(:run))
end