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# frozen_string_literal: true
# This module searches and redacts sensitive information in
# redactable fields. Currently only unsubscribe link is redacted.
# Add following lines into your model:
#
# include Redactable
# redact_field :foo
#
module Redactable
extend ActiveSupport::Concern
UNSUBSCRIBE_PATTERN = %r{/sent_notifications/\h{32}/unsubscribe}
class_methods do
def redact_field(field)
before_validation do
redact_field!(field) if attribute_changed?(field)
end
end
end
private
def redact_field!(field)
text = public_send(field) # rubocop:disable GitlabSecurity/PublicSend
return unless text.present?
redacted = text.gsub(UNSUBSCRIBE_PATTERN, '/sent_notifications/REDACTED/unsubscribe')
public_send("#{field}=", redacted) # rubocop:disable GitlabSecurity/PublicSend
end
end
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