52 lines
2 KiB
Ruby
52 lines
2 KiB
Ruby
# frozen_string_literal: true
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module Captcha
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##
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# Encapsulates logic of checking captchas.
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#
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class CaptchaVerificationService
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include Recaptcha::Adapters::ControllerMethods
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# Currently the only value that is used out of the request by the reCAPTCHA library
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# is 'remote_ip'. Therefore, we just create a struct to avoid passing the full request
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# object through all the service layer objects, and instead just rely on passing only
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# the required remote_ip value. This eliminates the need to couple the service layer
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# to the HTTP request (for the purpose of this service, at least).
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RequestStruct = Struct.new(:remote_ip)
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def initialize(spam_params:)
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@spam_params = spam_params
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end
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##
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# Performs verification of a captcha response.
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#
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# NOTE: Currently only supports reCAPTCHA, and is not yet used in all places of the app in which
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# captchas are verified, but these can be addressed in future MRs. See:
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# https://gitlab.com/gitlab-org/gitlab/-/issues/273480
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def execute
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return false unless spam_params.captcha_response
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@request = RequestStruct.new(spam_params.ip_address)
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Gitlab::Recaptcha.load_configurations!
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# NOTE: We could pass the model and let the recaptcha gem automatically add errors to it,
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# but we do not, for two reasons:
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#
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# 1. We want control over when the errors are added
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# 2. We want control over the wording and i18n of the message
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# 3. We want a consistent interface and behavior when adding support for other captcha
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# libraries which may not support automatically adding errors to the model.
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verify_recaptcha(response: spam_params.captcha_response)
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end
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private
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attr_reader :spam_params
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# The recaptcha library's Recaptcha::Adapters::ControllerMethods#verify_recaptcha method requires that
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# 'request' be a readable attribute - it doesn't support passing it as an options argument.
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attr_reader :request
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end
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end
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