masto-fe/app/services/pubsubhubbub/subscribe_service.rb

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# frozen_string_literal: true
class Pubsubhubbub::SubscribeService < BaseService
def call(account, callback, secret, lease_seconds)
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return ['Invalid topic URL', 422] if account.nil?
return ['Invalid callback URL', 422] unless !callback.blank? && callback =~ /\A#{URI.regexp(%w(http https))}\z/
return ['Callback URL not allowed', 403] if DomainBlock.blocked?(Addressable::URI.parse(callback).normalize.host)
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subscription = Subscription.where(account: account, callback_url: callback).first_or_create!(account: account, callback_url: callback)
Pubsubhubbub::ConfirmationWorker.perform_async(subscription.id, 'subscribe', secret, lease_seconds)
['', 202]
end
end