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

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

Overview

Watcher for Apssec internal events

Constant Summary collapse

ARBITRARY_VALUE = 
'invalid'
EVENT_LOGIN_SUCCESS = 
'users.login.success'
EVENT_LOGIN_FAILURE = 
'users.login.failure'
WATCHED_LOGIN_EVENTS = 
[EVENT_LOGIN_SUCCESS, EVENT_LOGIN_FAILURE].freeze

Class Method Summary collapse

Class Method Details

.watch ⇒ Object 



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# File 'lib/datadog/appsec/monitor/gateway/watcher.rb', line 19

def watch
  gateway = Instrumentation.gateway

  watch_user_id(gateway)
  (gateway)
end

.watch_user_id(gateway = Instrumentation.gateway) ⇒ Object 



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# File 'lib/datadog/appsec/monitor/gateway/watcher.rb', line 26

def watch_user_id(gateway = Instrumentation.gateway)
  gateway.watch('identity.set_user', :appsec) do |stack, user|
    context = AppSec.active_context

    if user.id.nil? && user..nil? && user.session_id.nil?
      Datadog.logger.debug { 'AppSec: skipping WAF check because no user information was provided' }
      next stack.call(user)
    end

    persistent_data = {}
    persistent_data['usr.id'] = user.id if user.id
    persistent_data['usr.login'] = user. if user.
    persistent_data['usr.session_id'] = user.session_id if user.session_id

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

    if result.match? || result.derivatives.any?
      context.events.push(
        AppSec::SecurityEvent.new(result, trace: context.trace, span: context.span)
      )
    end

    if result.match?
      AppSec::Event.tag_and_keep!(context, result)
      AppSec::ActionsHandler.handle(result.actions)
    end

    stack.call(user)
  end
end

.watch_user_login(gateway = Instrumentation.gateway) ⇒ Object 



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# File 'lib/datadog/appsec/monitor/gateway/watcher.rb', line 57

def (gateway = Instrumentation.gateway)
  gateway.watch('appsec.events.user_lifecycle', :appsec) do |stack, kind|
    context = AppSec.active_context

    next stack.call(kind) unless WATCHED_LOGIN_EVENTS.include?(kind)

    persistent_data = {"server.business_logic.#{kind}" => ARBITRARY_VALUE}
    result = context.run_waf(persistent_data, {}, Datadog.configuration.appsec.waf_timeout)

    if result.match? || result.derivatives.any?
      context.events.push(
        AppSec::SecurityEvent.new(result, trace: context.trace, span: context.span)
      )
    end

    if result.match?
      AppSec::Event.tag_and_keep!(context, result)
      AppSec::ActionsHandler.handle(result.actions)
    end

    stack.call(kind)
  end
end