Module: Datadog::AppSec::Contrib::Rails::Gateway::Watcher

Defined in:
lib/datadog/appsec/contrib/rails/gateway/watcher.rb

Overview

Watcher for Rails gateway events

Class Method Summary collapse

Class Method Details

.watch ⇒ Object 



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# File 'lib/datadog/appsec/contrib/rails/gateway/watcher.rb', line 14

def watch
  gateway = Instrumentation.gateway

  watch_request_action(gateway)
end

.watch_request_action(gateway = Instrumentation.gateway) ⇒ Object 



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# File 'lib/datadog/appsec/contrib/rails/gateway/watcher.rb', line 20

def watch_request_action(gateway = Instrumentation.gateway)
  gateway.watch('rails.request.action', :appsec) do |stack, gateway_request|
    context = gateway_request.env[Datadog::AppSec::Ext::CONTEXT_KEY]

    persistent_data = {
      'server.request.body' => gateway_request.parsed_body,
      'server.request.path_params' => gateway_request.route_params
    }

    result = context.run_waf(persistent_data, {}, Datadog.configuration.appsec.waf_timeout)

    if result.match?
      Datadog::AppSec::Event.tag_and_keep!(context, result)

      context.events << {
        waf_result: result,
        trace: context.trace,
        span: context.span,
        request: gateway_request,
        actions: result.actions
      }

      Datadog::AppSec::ActionsHandler.handle(result.actions)
    end

    stack.call(gateway_request.request)
  end
end