Class: Spam::SpamVerdictService

Inherits:
Object
  • Object
show all
Includes:
AkismetMethods, SpamConstants
Defined in:
app/services/spam/spam_verdict_service.rb

Constant Summary

Constants included from SpamConstants

Spam::SpamConstants::ALLOW, Spam::SpamConstants::BLOCK_USER, Spam::SpamConstants::CONDITIONAL_ALLOW, Spam::SpamConstants::DISALLOW, Spam::SpamConstants::ERROR_TYPE, Spam::SpamConstants::NOOP, Spam::SpamConstants::OVERRIDE_VIA_ALLOW_POSSIBLE_SPAM, Spam::SpamConstants::SUPPORTED_VERDICTS

Instance Method Summary collapse

Methods included from AkismetMethods

#akismet, #target_owner

Constructor Details

#initialize(user:, target:, options:, context: {}, extra_features: {}) ⇒ SpamVerdictService

Returns a new instance of SpamVerdictService.



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# File 'app/services/spam/spam_verdict_service.rb', line 8

def initialize(user:, target:, options:, context: {}, extra_features: {})
  @target = target
  @user = user
  @options = options
  @context = context
  @extra_features = extra_features
end

Instance Method Details

#execute ⇒ Object 



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# File 'app/services/spam/spam_verdict_service.rb', line 16

def execute
  spamcheck_verdict = nil

  external_spam_check_round_trip_time = Benchmark.realtime do
    spamcheck_verdict = get_spamcheck_verdict
  end

  histogram.observe({ result: spamcheck_verdict.upcase }, external_spam_check_round_trip_time) if spamcheck_verdict

  akismet_verdict = get_akismet_verdict

  # filter out anything we don't recognise, including nils.
  valid_verdicts = [spamcheck_verdict, akismet_verdict].compact.select { |r| SUPPORTED_VERDICTS.key?(r) }

  # Treat nils - such as service unavailable - as ALLOW
  return ALLOW unless valid_verdicts.any?

  # Favour the most restrictive verdict
  final_verdict = valid_verdicts.min_by { |v| SUPPORTED_VERDICTS[v][:priority] }

  # The target can override the verdict via the `allow_possible_spam` application setting
  final_verdict = OVERRIDE_VIA_ALLOW_POSSIBLE_SPAM if override_via_allow_possible_spam?(verdict: final_verdict)

  logger.info(
    class: self.class.name,
    akismet_verdict: akismet_verdict,
    spam_check_verdict: spamcheck_verdict,
    spam_check_rtt: external_spam_check_round_trip_time.real,
    final_verdict: final_verdict,
    username: user.username,
    user_id: user.id,
    target_type: target.class.to_s,
    project_id: target.project_id
  )

  final_verdict
end