44 lines
1.9 KiB
Ruby
44 lines
1.9 KiB
Ruby
# frozen_string_literal: true
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module Status::FetchRepliesConcern
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extend ActiveSupport::Concern
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# enable/disable fetching all replies
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FETCH_REPLIES_ENABLED = ENV['FETCH_REPLIES_ENABLED'] == 'true'
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# debounce fetching all replies to minimize DoS
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FETCH_REPLIES_COOLDOWN_MINUTES = (ENV['FETCH_REPLIES_COOLDOWN_MINUTES'] || 15).to_i.minutes
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FETCH_REPLIES_INITIAL_WAIT_MINUTES = (ENV['FETCH_REPLIES_INITIAL_WAIT_MINUTES'] || 5).to_i.minutes
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included do
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scope :created_recently, -> { where(created_at: FETCH_REPLIES_INITIAL_WAIT_MINUTES.ago..) }
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scope :not_created_recently, -> { where(created_at: ..FETCH_REPLIES_INITIAL_WAIT_MINUTES.ago) }
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scope :fetched_recently, -> { where(fetched_replies_at: FETCH_REPLIES_COOLDOWN_MINUTES.ago..) }
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scope :not_fetched_recently, -> { where(fetched_replies_at: [nil, ..FETCH_REPLIES_COOLDOWN_MINUTES.ago]) }
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scope :should_not_fetch_replies, -> { local.or(created_recently.or(fetched_recently)) }
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scope :should_fetch_replies, -> { remote.not_created_recently.not_fetched_recently }
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# statuses for which we won't receive update or deletion actions,
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# and should update when fetching replies
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# Status from an account which either
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# a) has only remote followers
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# b) has local follows that were created after the last update time, or
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# c) has no known followers
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scope :unsubscribed, lambda {
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remote.merge(
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Status.left_outer_joins(account: :followers).where.not(followers_accounts: { domain: nil })
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.or(where.not('follows.created_at < statuses.updated_at'))
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.or(where(follows: { id: nil }))
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)
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}
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end
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def should_fetch_replies?
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# we aren't brand new, and we haven't fetched replies since the debounce window
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FETCH_REPLIES_ENABLED && !local? && created_at <= FETCH_REPLIES_INITIAL_WAIT_MINUTES.ago && (
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fetched_replies_at.nil? || fetched_replies_at <= FETCH_REPLIES_COOLDOWN_MINUTES.ago
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)
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end
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end
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