mirror of https://framagit.org/tykayn/mastodon.git
75 lines
2.1 KiB
Ruby
75 lines
2.1 KiB
Ruby
# frozen_string_literal: true
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class ActivityPub::FetchFeaturedTagsCollectionService < BaseService
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include JsonLdHelper
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def call(account, url)
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return if url.blank? || account.suspended? || account.local?
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@account = account
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@json = fetch_resource(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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all_items = []
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collection = fetch_collection(collection['first']) if collection['first'].present?
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while collection.is_a?(Hash)
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items = begin
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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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break if items.blank?
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all_items.concat(items)
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break if all_items.size >= FeaturedTag::LIMIT
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collection = collection['next'].present? ? fetch_collection(collection['next']) : nil
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end
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all_items
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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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names = items.filter_map { |item| item['type'] == 'Hashtag' && item['name']&.delete_prefix('#') }.take(FeaturedTag::LIMIT)
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tags = names.index_by { |name| HashtagNormalizer.new.normalize(name) }
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normalized_names = tags.keys
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FeaturedTag.includes(:tag).references(:tag).where(account: @account).where.not(tag: { name: normalized_names }).delete_all
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FeaturedTag.includes(:tag).references(:tag).where(account: @account, tag: { name: normalized_names }).each do |featured_tag|
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featured_tag.update(name: tags.delete(featured_tag.tag.name))
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end
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tags.each_value 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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