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module RequiresHealthToken
extend ActiveSupport::Concern
included do
before_action :validate_health_check_access!
end
private
def validate_health_check_access!
render_404 unless token_valid?
end
def token_valid?
token = params[:token].presence || request.headers['TOKEN']
token.present? &&
ActiveSupport::SecurityUtils.variable_size_secure_compare(
token,
current_application_settings.health_check_access_token
)
end
def render_404
render file: Rails.root.join('public', '404'), layout: false, status: '404'
end
end
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