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a24605961a
* Revert "Fixes/do not override timestamps (#7331)"
This reverts commit 581a5c9d29.
* Document Snowflake ID corner-case a bit more
Snowflake IDs are used for two purposes: making object identifiers harder to
guess and ensuring they are in chronological order. For this reason, they
are based on the `created_at` attribute of the object.
Unfortunately, inserting items with older snowflakes IDs will break the
assumption of consumers of the paging APIs that new items will always have
a greater identifier than the last seen one.
* Add `override_timestamps` virtual attribute to not correlate snowflake ID with created_at
121 lines
2.9 KiB
Ruby
121 lines
2.9 KiB
Ruby
# frozen_string_literal: true
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class ActivityPub::Activity
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include JsonLdHelper
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def initialize(json, account, **options)
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@json = json
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@account = account
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@object = @json['object']
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@options = options
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end
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def perform
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raise NotImplementedError
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end
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class << self
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def factory(json, account, **options)
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@json = json
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klass&.new(json, account, options)
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end
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private
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def klass
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case @json['type']
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when 'Create'
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ActivityPub::Activity::Create
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when 'Announce'
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ActivityPub::Activity::Announce
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when 'Delete'
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ActivityPub::Activity::Delete
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when 'Follow'
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ActivityPub::Activity::Follow
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when 'Like'
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ActivityPub::Activity::Like
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when 'Block'
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ActivityPub::Activity::Block
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when 'Update'
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ActivityPub::Activity::Update
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when 'Undo'
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ActivityPub::Activity::Undo
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when 'Accept'
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ActivityPub::Activity::Accept
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when 'Reject'
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ActivityPub::Activity::Reject
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when 'Flag'
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ActivityPub::Activity::Flag
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when 'Add'
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ActivityPub::Activity::Add
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when 'Remove'
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ActivityPub::Activity::Remove
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end
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end
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end
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protected
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def status_from_uri(uri)
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ActivityPub::TagManager.instance.uri_to_resource(uri, Status)
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end
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def account_from_uri(uri)
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ActivityPub::TagManager.instance.uri_to_resource(uri, Account)
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end
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def object_uri
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@object_uri ||= value_or_id(@object)
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end
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def redis
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Redis.current
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end
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def distribute(status)
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crawl_links(status)
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notify_about_reblog(status) if reblog_of_local_account?(status)
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notify_about_mentions(status)
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# Only continue if the status is supposed to have arrived in real-time.
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# Note that if @options[:override_timestamps] isn't set, the status
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# may have a lower snowflake id than other existing statuses, potentially
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# "hiding" it from paginated API calls
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return unless @options[:override_timestamps] || status.within_realtime_window?
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distribute_to_followers(status)
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end
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def reblog_of_local_account?(status)
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status.reblog? && status.reblog.account.local?
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end
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def notify_about_reblog(status)
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NotifyService.new.call(status.reblog.account, status)
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end
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def notify_about_mentions(status)
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status.mentions.includes(:account).each do |mention|
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next unless mention.account.local? && audience_includes?(mention.account)
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NotifyService.new.call(mention.account, mention)
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end
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end
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def crawl_links(status)
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return if status.spoiler_text?
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LinkCrawlWorker.perform_async(status.id)
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end
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def distribute_to_followers(status)
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::DistributionWorker.perform_async(status.id)
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end
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def delete_arrived_first?(uri)
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redis.exists("delete_upon_arrival:#{@account.id}:#{uri}")
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end
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def delete_later!(uri)
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redis.setex("delete_upon_arrival:#{@account.id}:#{uri}", 6.hours.seconds, uri)
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end
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end
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