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# frozen_string_literal: true
module Mutations
# This concern can be mixed into a mutation to provide support for spam checking,
# and optionally support the workflow to allow clients to display and solve CAPTCHAs.
module SpamProtection
extend ActiveSupport::Concern
include Spam::Concerns::HasSpamActionResponseFields
SpamActionError = Class.new(GraphQL::ExecutionError)
NeedsCaptchaResponseError = Class.new(SpamActionError)
SpamDisallowedError = Class.new(SpamActionError)
NEEDS_CAPTCHA_RESPONSE_MESSAGE = "Request denied. Solve CAPTCHA challenge and retry"
SPAM_DISALLOWED_MESSAGE = "Request denied. Spam detected"
private
def spam_action_response(object)
fields = spam_action_response_fields(object)
# If the SpamActionService detected something as spam,
# this is non-recoverable and the needs_captcha_response
# should not be considered
kind = if fields[:spam]
:spam
elsif fields[:needs_captcha_response]
:needs_captcha_response
end
[kind, fields]
end
def check_spam_action_response!(object)
kind, fields = spam_action_response(object)
case kind
when :needs_captcha_response
fields.delete :spam
raise NeedsCaptchaResponseError.new(NEEDS_CAPTCHA_RESPONSE_MESSAGE, extensions: fields)
when :spam
raise SpamDisallowedError.new(SPAM_DISALLOWED_MESSAGE, extensions: { spam: true })
else
nil
end
end
end
end
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