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# frozen_string_literal: true
class OStatus::Activity::Creation < OStatus::Activity::Base
def perform
if redis.exists("delete_upon_arrival:#{@account.id}:#{id}")
Rails.logger.debug "Delete for status #{id} was queued, ignoring"
return [nil, false]
end
return [nil, false] if @account.suspended?
if activitypub_uri? && [:public, :unlisted].include?(visibility_scope)
result = perform_via_activitypub
return result if result.first.present?
end
RedisLock.acquire(lock_options) do |lock|
if lock.acquired?
# Return early if status already exists in db
@status = find_status(id)
return [@status, false] unless @status.nil?
@status = process_status
end
end
[@status, true]
end
def process_status
Rails.logger.debug "Creating remote status #{id}"
cached_reblog = reblog
status = nil
ApplicationRecord.transaction do
status = Status.create!(
uri: id,
url: url,
account: @account,
reblog: cached_reblog,
text: content,
spoiler_text: content_warning,
created_at: published,
reply: thread?,
language: content_language,
visibility: visibility_scope,
conversation: find_or_create_conversation,
thread: thread? ? find_status(thread.first) || find_activitypub_status(thread.first, thread.second) : nil
)
save_mentions(status)
save_hashtags(status)
save_media(status)
save_emojis(status)
end
if thread? && status.thread.nil?
Rails.logger.debug "Trying to attach #{status.id} (#{id}) to #{thread.first}"
ThreadResolveWorker.perform_async(status.id, thread.second)
end
Rails.logger.debug "Queuing remote status #{status.id} (#{id}) for distribution"
LinkCrawlWorker.perform_async(status.id) unless status.spoiler_text?
DistributionWorker.perform_async(status.id)
status
end
def perform_via_activitypub
[find_status(activitypub_uri) || ActivityPub::FetchRemoteStatusService.new.call(activitypub_uri), false]
end
def content
@xml.at_xpath('./xmlns:content', xmlns: OStatus::TagManager::XMLNS).content
end
def content_language
@xml.at_xpath('./xmlns:content', xmlns: OStatus::TagManager::XMLNS)['xml:lang']&.presence || 'en'
end
def content_warning
@xml.at_xpath('./xmlns:summary', xmlns: OStatus::TagManager::XMLNS)&.content || ''
end
def visibility_scope
@xml.at_xpath('./mastodon:scope', mastodon: OStatus::TagManager::MTDN_XMLNS)&.content&.to_sym || :public
end
def published
@xml.at_xpath('./xmlns:published', xmlns: OStatus::TagManager::XMLNS).content
end
def thread?
!@xml.at_xpath('./thr:in-reply-to', thr: OStatus::TagManager::THR_XMLNS).nil?
end
def thread
thr = @xml.at_xpath('./thr:in-reply-to', thr: OStatus::TagManager::THR_XMLNS)
[thr['ref'], thr['href']]
end
private
def find_or_create_conversation
uri = @xml.at_xpath('./ostatus:conversation', ostatus: OStatus::TagManager::OS_XMLNS)&.attribute('ref')&.content
return if uri.nil?
if OStatus::TagManager.instance.local_id?(uri)
local_id = OStatus::TagManager.instance.unique_tag_to_local_id(uri, 'Conversation')
return Conversation.find_by(id: local_id)
end
Conversation.find_by(uri: uri) || Conversation.create!(uri: uri)
end
def save_mentions(parent)
processed_account_ids = []
@xml.xpath('./xmlns:link[@rel="mentioned"]', xmlns: OStatus::TagManager::XMLNS).each do |link|
next if [OStatus::TagManager::TYPES[:group], OStatus::TagManager::TYPES[:collection]].include? link['ostatus:object-type']
mentioned_account = account_from_href(link['href'])
next if mentioned_account.nil? || processed_account_ids.include?(mentioned_account.id)
mentioned_account.mentions.where(status: parent).first_or_create(status: parent)
# So we can skip duplicate mentions
processed_account_ids << mentioned_account.id
end
end
def save_hashtags(parent)
tags = @xml.xpath('./xmlns:category', xmlns: OStatus::TagManager::XMLNS).map { |category| category['term'] }.select(&:present?)
ProcessHashtagsService.new.call(parent, tags)
end
def save_media(parent)
do_not_download = DomainBlock.find_by(domain: parent.account.domain)&.reject_media?
@xml.xpath('./xmlns:link[@rel="enclosure"]', xmlns: OStatus::TagManager::XMLNS).each do |link|
next unless link['href']
media = MediaAttachment.where(status: parent, remote_url: link['href']).first_or_initialize(account: parent.account, status: parent, remote_url: link['href'])
parsed_url = Addressable::URI.parse(link['href']).normalize
next if !%w(http https).include?(parsed_url.scheme) || parsed_url.host.empty?
media.save
next if do_not_download
begin
media.file_remote_url = link['href']
media.save!
rescue ActiveRecord::RecordInvalid
next
end
end
end
def save_emojis(parent)
do_not_download = DomainBlock.find_by(domain: parent.account.domain)&.reject_media?
return if do_not_download
@xml.xpath('./xmlns:link[@rel="emoji"]', xmlns: OStatus::TagManager::XMLNS).each do |link|
next unless link['href'] && link['name']
shortcode = link['name'].delete(':')
emoji = CustomEmoji.find_by(shortcode: shortcode, domain: parent.account.domain)
next unless emoji.nil?
emoji = CustomEmoji.new(shortcode: shortcode, domain: parent.account.domain)
emoji.image_remote_url = link['href']
emoji.save
end
end
def account_from_href(href)
url = Addressable::URI.parse(href).normalize
if TagManager.instance.web_domain?(url.host)
Account.find_local(url.path.gsub('/users/', ''))
else
Account.where(uri: href).or(Account.where(url: href)).first || FetchRemoteAccountService.new.call(href)
end
end
def lock_options
{ redis: Redis.current, key: "create:#{id}" }
end
end
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