c8849d6cee
* Fix trying to fetch posts from other users when fetching featured posts * Rate-limit discovery of new subdomains * Put a limit on recursively discovering new accounts
103 lines
3 KiB
Ruby
103 lines
3 KiB
Ruby
# frozen_string_literal: true
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class ActivityPub::FetchFeaturedCollectionService < BaseService
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include JsonLdHelper
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def call(account, **options)
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return if account.featured_collection_url.blank? || account.suspended? || account.local?
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@account = account
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@options = options
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@json = fetch_resource(@account.featured_collection_url, true, local_follower)
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return unless supported_context?(@json)
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process_items(collection_items(@json))
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end
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private
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def collection_items(collection)
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collection = fetch_collection(collection['first']) if collection['first'].present?
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return unless collection.is_a?(Hash)
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case collection['type']
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when 'Collection', 'CollectionPage'
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collection['items']
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when 'OrderedCollection', 'OrderedCollectionPage'
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collection['orderedItems']
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end
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end
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def fetch_collection(collection_or_uri)
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return collection_or_uri if collection_or_uri.is_a?(Hash)
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return if invalid_origin?(collection_or_uri)
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fetch_resource_without_id_validation(collection_or_uri, local_follower, true)
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end
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def process_items(items)
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process_note_items(items) if @options[:note]
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process_hashtag_items(items) if @options[:hashtag]
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end
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def process_note_items(items)
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status_ids = items.filter_map do |item|
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next unless item.is_a?(String) || item['type'] == 'Note'
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uri = value_or_id(item)
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next if ActivityPub::TagManager.instance.local_uri?(uri) || invalid_origin?(uri)
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status = ActivityPub::FetchRemoteStatusService.new.call(uri, on_behalf_of: local_follower, expected_actor_uri: @account.uri, request_id: @options[:request_id])
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next unless status&.account_id == @account.id
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status.id
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rescue ActiveRecord::RecordInvalid => e
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Rails.logger.debug "Invalid pinned status #{uri}: #{e.message}"
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nil
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end
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to_remove = []
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to_add = status_ids
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StatusPin.where(account: @account).pluck(:status_id).each do |status_id|
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if status_ids.include?(status_id)
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to_add.delete(status_id)
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else
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to_remove << status_id
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end
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end
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StatusPin.where(account: @account, status_id: to_remove).delete_all unless to_remove.empty?
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to_add.each do |status_id|
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StatusPin.create!(account: @account, status_id: status_id)
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end
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end
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def process_hashtag_items(items)
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names = items.filter_map { |item| item['type'] == 'Hashtag' && item['name']&.delete_prefix('#') }.map { |name| HashtagNormalizer.new.normalize(name) }
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to_remove = []
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to_add = names
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FeaturedTag.where(account: @account).map(&:name).each do |name|
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if names.include?(name)
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to_add.delete(name)
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else
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to_remove << name
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end
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end
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FeaturedTag.includes(:tag).where(account: @account, tags: { name: to_remove }).delete_all unless to_remove.empty?
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to_add.each do |name|
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FeaturedTag.create!(account: @account, name: name)
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end
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end
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def local_follower
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return @local_follower if defined?(@local_follower)
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@local_follower = @account.followers.local.without_suspended.first
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end
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end
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