128 lines
4.9 KiB
Ruby
128 lines
4.9 KiB
Ruby
# frozen_string_literal: true
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class StatusCacheHydrator
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def initialize(status)
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@status = status
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end
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def hydrate(account_id)
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# The cache of the serialized hash is generated by the fan-out-on-write service
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payload = Rails.cache.fetch("fan-out/#{@status.id}") { InlineRenderer.render(@status, nil, :status) }
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# If we're delivering to the author who disabled the display of the application used to create the
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# status, we need to hydrate the application, since it was not rendered for the basic payload
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payload[:application] = payload_application if payload[:application].nil? && @status.account_id == account_id
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# We take advantage of the fact that some relationships can only occur with an original status, not
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# the reblog that wraps it, so we can assume that some values are always false
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if payload[:reblog]
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hydrate_reblog_payload(payload, account_id)
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else
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hydrate_non_reblog_payload(payload, account_id)
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end
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end
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private
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def hydrate_non_reblog_payload(empty_payload, account_id)
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empty_payload.tap do |payload|
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fill_status_payload(payload, @status, account_id)
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if payload[:poll]
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payload[:poll][:voted] = @status.account_id == account_id
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payload[:poll][:own_votes] = []
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end
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end
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end
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def hydrate_reblog_payload(empty_payload, account_id)
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empty_payload.tap do |payload|
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payload[:muted] = false
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payload[:bookmarked] = false
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payload[:pinned] = false if @status.account_id == account_id
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# If the reblogged status is being delivered to the author who disabled the display of the application
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# used to create the status, we need to hydrate it here too
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payload[:reblog][:application] = payload_reblog_application if payload[:reblog][:application].nil? && @status.reblog.account_id == account_id
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fill_status_payload(payload[:reblog], @status.reblog, account_id)
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if payload[:reblog][:poll]
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if @status.reblog.account_id == account_id
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payload[:reblog][:poll][:voted] = true
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payload[:reblog][:poll][:own_votes] = []
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else
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own_votes = PollVote.where(poll_id: @status.reblog.poll_id, account_id: account_id).pluck(:choice)
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payload[:reblog][:poll][:voted] = !own_votes.empty?
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payload[:reblog][:poll][:own_votes] = own_votes
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end
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end
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payload[:filtered] = payload[:reblog][:filtered]
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payload[:favourited] = payload[:reblog][:favourited]
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payload[:reblogged] = payload[:reblog][:reblogged]
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end
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end
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def fill_status_payload(payload, status, account_id)
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payload[:favourited] = Favourite.exists?(account_id: account_id, status_id: status.id)
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payload[:reblogged] = Status.exists?(account_id: account_id, reblog_of_id: status.id)
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payload[:muted] = ConversationMute.exists?(account_id: account_id, conversation_id: status.conversation_id)
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payload[:bookmarked] = Bookmark.exists?(account_id: account_id, status_id: status.id)
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payload[:pinned] = StatusPin.exists?(account_id: account_id, status_id: status.id) if status.account_id == account_id
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payload[:filtered] = mapped_applied_custom_filter(account_id, status)
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payload[:quote] = hydrate_quote_payload(payload[:quote], status.quote, account_id) if payload[:quote]
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end
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def hydrate_quote_payload(empty_payload, quote, account_id)
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# TODO: properly handle quotes, including visibility and access control
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empty_payload.tap do |payload|
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# Nothing to do if we're in the shallow (depth limit) case
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next unless payload.key?(:quoted_status)
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# TODO: handle hiding a rendered status or showing a non-rendered status according to visibility
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if quote&.quoted_status.nil?
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payload[:quoted_status] = nil
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elsif payload[:quoted_status].present?
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payload[:quoted_status] = StatusCacheHydrator.new(quote.quoted_status).hydrate(account_id)
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end
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end
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end
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def mapped_applied_custom_filter(account_id, status)
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CustomFilter
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.apply_cached_filters(CustomFilter.cached_filters_for(account_id), status)
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.map { |filter| serialized_filter(filter) }
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end
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def serialized_filter(filter)
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ActiveModelSerializers::SerializableResource.new(
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filter,
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serializer: REST::FilterResultSerializer
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).as_json
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end
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def payload_application
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@status.application.present? ? serialized_status_application_json : nil
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end
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def serialized_status_application_json
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ActiveModelSerializers::SerializableResource.new(
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@status.application,
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serializer: REST::StatusSerializer::ApplicationSerializer
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).as_json
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end
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def payload_reblog_application
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@status.reblog.application.present? ? serialized_status_reblog_application_json : nil
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end
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def serialized_status_reblog_application_json
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ActiveModelSerializers::SerializableResource.new(
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@status.reblog.application,
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serializer: REST::StatusSerializer::ApplicationSerializer
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).as_json
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end
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end
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