Class: Rack::Prevoty::MonitorInterceptor

Inherits:
Interceptor show all
Defined in:
lib/rack/monitor_interceptor.rb

Instance Method Summary collapse

Methods inherited from Interceptor

build_result

Constructor Details

#initialize(app, opts) ⇒ MonitorInterceptor

Returns a new instance of MonitorInterceptor.



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# File 'lib/rack/monitor_interceptor.rb', line 6

def initialize(app, opts)
  super(app, opts)

  @monitor = ::Prevoty::ContentMonitor.new(@client, opts)
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/rack/monitor_interceptor.rb', line 12

def call(env)
  req = Rack::Request.new(env)

  # passthru if not listed in paths
  return @app.call(env) if @paths.detect {|p| req.path.start_with?(p)}.nil?

  # passthru if blacklisted
  return @app.call(env) unless @blacklist.detect {|p| req.path.start_with?(p)}.nil?

  case req.request_method
  when "GET", "DELETE"
    unless env['QUERY_STRING'] === ''
      querystring = URI.unescape(env['QUERY_STRING'])
      @monitor.process({mode: @mode, input: querystring, request: req})
    end
  when "POST", "PUT"
    if req.media_type === 'multipart/form-data'
      # TODO: implement support for multipart. The Rack multipart
      # implementation doesn't support parsing and re-creating the
      # mutlipart data so a custom implementation needs to be written
    else
      body = URI.unescape(req.body.read.encode('utf-8'))
      unless body === ''
        @monitor.process({mode: @mode, input: body, request: req})
      end
    end

    # clean any GET data passed
    unless env['QUERY_STRING'] === ''
      querystring = URI.unescape(env['QUERY_STRING'])
      @monitor.process({mode: @mode, input: querystring, request: req})
    end
  else Rails.logger.warn "unknown method #{req.request_method}"
  end

  @app.call(env)
end