Module: Datadog::AppSec::Monitor::Gateway::Watcher

Defined in:
lib/datadog/appsec/monitor/gateway/watcher.rb

Overview

Watcher for Apssec internal events

Class Method Summary collapse

Class Method Details

.watch ⇒ Object 



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

def watch
  gateway = Instrumentation.gateway

  watch_user_id(gateway)
end

.watch_user_id(gateway = Instrumentation.gateway) ⇒ Object 



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

def watch_user_id(gateway = Instrumentation.gateway)
  gateway.watch('identity.set_user', :appsec) do |stack, user|
    block = false
    event = nil
    scope = Datadog::AppSec.active_scope

    AppSec::Reactive::Operation.new('identity.set_user') do |op|
      Monitor::Reactive::SetUser.subscribe(op, scope.processor_context) do |result|
        if result.status == :match
          # TODO: should this hash be an Event instance instead?
          event = {
            waf_result: result,
            trace: scope.trace,
            span: scope.service_entry_span,
            user: user,
            actions: result.actions
          }

          if scope.service_entry_span
            scope.service_entry_span.set_tag('appsec.blocked', 'true') if result.actions.include?('block')
            scope.service_entry_span.set_tag('appsec.event', 'true')
          end

          scope.processor_context.events << event
        end
      end

      block = Monitor::Reactive::SetUser.publish(op, user)
    end

    throw(Datadog::AppSec::Ext::INTERRUPT, [nil, [[:block, event]]]) if block

    ret, res = stack.call(user)

    if event
      res ||= []
      res << [:monitor, event]
    end

    [ret, res]
  end
end