class RackRequestObjectLogger

# File lib/rack-request-object-logger.rb, line 6
def initialize(app, request_model)
  @app = app
  @model = request_model
end

# File lib/rack-request-object-logger.rb, line 11
def call(env)
  start_time = Time.now.utc

  app_result = @app.call(env)

  end_time = Time.now.utc
  logger_object = @model.new
  logger_object.application_server_request_start = start_time
  logger_object.application_server_request_end = end_time
  request = Rack::Request.new(env)
  logger_object.data = request.env.select do |header, value|
    # don't bother with values other than a string
    next if !value.is_a?(String)
    # https://tools.ietf.org/html/rfc3875 CGI 1.1 spec
    # reject cookies
    next if ['HTTP_COOKIE'].include?(header)

    # 1. predefined
    # 2. $scheme - rack is for HTTP, won't handle other protocols here
    # 3. http headers
    # 4. REQUEST_URI seems to be defined like everywhere (PHP, Python, Rack), but is not a part of CGI spec
    #    ORIGINAL_FULLPATH and ORIGINAL_SCRIPT_NAME is Rack specific
    [
        'AUTH_TYPE', 'CONTENT_LENGTH', 'CONTENT_TYPE', 'GATEWAY_INTERFACE', 'PATH_INFO',
        'PATH_TRANSLATED', 'QUERY_STRING', 'REMOTE_ADDR', 'REMOTE_HOST', 'REMOTE_IDENT',
        'REMOTE_USER', 'REQUEST_METHOD', 'SCRIPT_NAME', 'SERVER_NAME', 'SERVER_PORT',
        'SERVER_PROTOCOL', 'SERVER_SOFTWARE'
    ].include?(header) || ['HTTP', 'HTTPS'].include?(header) || header =~ /\AHTTP_\w+\z/ ||
    ['REQUEST_URI', 'ORIGINAL_FULLPATH', 'ORIGINAL_SCRIPT_NAME'].include?(header)
  end
  logger_object.uid = request.env['action_dispatch.request_id'] || SecureRandom.uuid
  logger_object.status_code = app_result.first
  logger_object.save
  app_result
end