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# frozen_string_literal: true
class ActivityPub::FetchFeaturedCollectionService < BaseService
include JsonLdHelper
def call(account)
return if account.featured_collection_url.blank? || account.suspended? || account.local?
@account = account
@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)
status_ids = items.filter_map do |item|
uri = value_or_id(item)
next if ActivityPub::TagManager.instance.local_uri?(uri)
status = ActivityPub::FetchRemoteStatusService.new.call(uri, on_behalf_of: local_follower)
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 local_follower
return @local_follower if defined?(@local_follower)
@local_follower = @account.followers.local.without_suspended.first
end
end
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