80 lines
3.1 KiB
Ruby
80 lines
3.1 KiB
Ruby
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# frozen_string_literal: true
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# Monkey patch Transaction::Notification to prevent attachments from being
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# included in ticket notification emails for security/privacy reasons.
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#
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# This overrides the send_notification_email method to always pass an empty
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# attachments array instead of article.attachments_inline.
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module TransactionNotificationNoAttachments
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def send_notification_email(user:, ticket:, article:, changes:, current_user:, recipients_reason:)
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template = case @item[:type]
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when 'create'
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'ticket_create'
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when 'update'
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'ticket_update'
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when 'reminder_reached'
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'ticket_reminder_reached'
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when 'escalation'
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'ticket_escalation'
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when 'escalation_warning'
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'ticket_escalation_warning'
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when 'update.merged_into', 'update.received_merge'
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'ticket_update_merged'
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when 'update.reaction'
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'ticket_article_update_reaction'
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else
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raise "unknown type for notification #{@item[:type]}"
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end
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# HARDENING: Always use empty attachments array to prevent leaking sensitive files
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original_attachment_count = article&.attachments_inline&.count || 0
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attachments = []
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if original_attachment_count > 0
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Rails.logger.info "[HARDENING] Stripped #{original_attachment_count} attachment(s) from notification email for ticket ##{ticket.id}"
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end
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NotificationFactory::Mailer.notification(
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template: template,
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user: user,
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objects: {
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ticket: ticket,
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article: article,
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recipient: user,
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current_user: current_user,
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changes: changes,
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reason: recipients_reason[user.id],
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},
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message_id: "<notification.#{DateTime.current.to_fs(:number)}.#{ticket.id}.#{user.id}.#{SecureRandom.uuid}@#{Setting.get('fqdn')}>",
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references: ticket.get_references,
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main_object: ticket,
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attachments: attachments,
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)
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Rails.logger.debug { "sent ticket email notification to agent (#{@item[:type]}/#{ticket.id}/#{user.email})" }
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rescue Channel::DeliveryError => e
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status_code = begin
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e.original_error.response.status.to_i
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rescue
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raise e
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end
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if Transaction::Notification::SILENCABLE_SMTP_ERROR_CODES.any? { |elem| elem.include? status_code }
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Rails.logger.info do
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"could not send ticket email notification to agent (#{@item[:type]}/#{ticket.id}/#{user.email}) #{e.original_error}"
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end
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return
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end
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raise e
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end
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end
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# Apply the monkey patch after Rails initialization when all classes are loaded
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Rails.application.config.after_initialize do
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Rails.logger.info '[HARDENING] Loading TransactionNotificationNoAttachments monkey patch...'
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Transaction::Notification.prepend(TransactionNotificationNoAttachments)
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Rails.logger.info '[HARDENING] TransactionNotificationNoAttachments monkey patch successfully applied - email attachments will be stripped from notifications'
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end
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