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