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# frozen_string_literal: true
require 'gitlab/email/handler/base_handler'
# handles unsubscribe emails with these forms:
# incoming+1234567890abcdef1234567890abcdef-unsubscribe@incoming.gitlab.com
# incoming+1234567890abcdef1234567890abcdef+unsubscribe@incoming.gitlab.com (legacy)
module Gitlab
module Email
module Handler
class UnsubscribeHandler < BaseHandler
delegate :project, to: :sent_notification, allow_nil: true
HANDLER_REGEX = /\A(?<replytoken>\w+)#{Gitlab::IncomingEmail::UNSUBSCRIBE_SUFFIX}\z/.freeze
HANDLER_REGEX_LEGACY = /\A(?<replytoken>\w+)#{Regexp.escape(Gitlab::IncomingEmail::UNSUBSCRIBE_SUFFIX_OLD)}\z/.freeze
def initialize(mail, mail_key)
super(mail, mail_key)
matched = HANDLER_REGEX.match(mail_key.to_s) || HANDLER_REGEX_LEGACY.match(mail_key.to_s)
@reply_token = matched[:replytoken] if matched
end
def can_handle?
@reply_token.present?
end
def execute
raise SentNotificationNotFoundError unless sent_notification
return unless sent_notification.unsubscribable?
noteable = sent_notification.noteable
raise NoteableNotFoundError unless noteable
noteable.unsubscribe(sent_notification.recipient)
end
private
def sent_notification
@sent_notification ||= SentNotification.for(@reply_token)
end
end
end
end
end
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