306 lines
8.7 KiB
Ruby
306 lines
8.7 KiB
Ruby
# frozen_string_literal: true
|
|
|
|
class ProcessFeedService < BaseService
|
|
def call(body, account)
|
|
xml = Nokogiri::XML(body)
|
|
xml.encoding = 'utf-8'
|
|
|
|
update_author(body, account)
|
|
process_entries(xml, account)
|
|
end
|
|
|
|
private
|
|
|
|
def update_author(body, account)
|
|
RemoteProfileUpdateWorker.perform_async(account.id, body.force_encoding('UTF-8'), true)
|
|
end
|
|
|
|
def process_entries(xml, account)
|
|
xml.xpath('//xmlns:entry', xmlns: TagManager::XMLNS).reverse_each.map { |entry| ProcessEntry.new.call(entry, account) }.compact
|
|
end
|
|
|
|
class ProcessEntry
|
|
include AuthorExtractor
|
|
|
|
def call(xml, account)
|
|
@account = account
|
|
@xml = xml
|
|
|
|
return if skip_unsupported_type?
|
|
|
|
case verb
|
|
when :post, :share
|
|
return create_status
|
|
when :delete
|
|
return delete_status
|
|
end
|
|
rescue ActiveRecord::RecordInvalid => e
|
|
Rails.logger.debug "Nothing was saved for #{id} because: #{e}"
|
|
nil
|
|
end
|
|
|
|
private
|
|
|
|
def create_status
|
|
if redis.exists("delete_upon_arrival:#{id}")
|
|
Rails.logger.debug "Delete for status #{id} was queued, ignoring"
|
|
return
|
|
end
|
|
|
|
Rails.logger.debug "Creating remote status #{id}"
|
|
status, just_created = status_from_xml(@xml)
|
|
|
|
return if status.nil?
|
|
return status unless just_created
|
|
|
|
if verb == :share
|
|
original_status = shared_status_from_xml(@xml.at_xpath('.//activity:object', activity: TagManager::AS_XMLNS))
|
|
status.reblog = original_status
|
|
|
|
if original_status.nil?
|
|
status.destroy
|
|
return nil
|
|
elsif original_status.reblog?
|
|
status.reblog = original_status.reblog
|
|
end
|
|
end
|
|
|
|
status.save!
|
|
|
|
notify_about_mentions!(status) unless status.reblog?
|
|
notify_about_reblog!(status) if status.reblog? && status.reblog.account.local?
|
|
Rails.logger.debug "Queuing remote status #{status.id} (#{id}) for distribution"
|
|
DistributionWorker.perform_async(status.id)
|
|
status
|
|
end
|
|
|
|
def notify_about_mentions!(status)
|
|
status.mentions.includes(:account).each do |mention|
|
|
mentioned_account = mention.account
|
|
next unless mentioned_account.local?
|
|
NotifyService.new.call(mentioned_account, mention)
|
|
end
|
|
end
|
|
|
|
def notify_about_reblog!(status)
|
|
NotifyService.new.call(status.reblog.account, status)
|
|
end
|
|
|
|
def delete_status
|
|
Rails.logger.debug "Deleting remote status #{id}"
|
|
status = Status.find_by(uri: id)
|
|
|
|
if status.nil?
|
|
redis.setex("delete_upon_arrival:#{id}", 6 * 3_600, id)
|
|
else
|
|
RemoveStatusService.new.call(status)
|
|
end
|
|
|
|
nil
|
|
end
|
|
|
|
def skip_unsupported_type?
|
|
!([:post, :share, :delete].include?(verb) && [:activity, :note, :comment].include?(type))
|
|
end
|
|
|
|
def shared_status_from_xml(entry)
|
|
status = find_status(id(entry))
|
|
|
|
return status unless status.nil?
|
|
|
|
FetchRemoteStatusService.new.call(url(entry))
|
|
end
|
|
|
|
def status_from_xml(entry)
|
|
# Return early if status already exists in db
|
|
status = find_status(id(entry))
|
|
|
|
return [status, false] unless status.nil?
|
|
|
|
# If status embeds an author, find that author
|
|
# If that author cannot be found, don't record the status (do not misattribute)
|
|
if account?(entry)
|
|
begin
|
|
account = author_from_xml(entry)
|
|
return [nil, false] if account.nil?
|
|
rescue Goldfinger::Error
|
|
return [nil, false]
|
|
end
|
|
else
|
|
account = @account
|
|
end
|
|
|
|
return [nil, false] if account.suspended?
|
|
|
|
status = Status.create!(
|
|
uri: id(entry),
|
|
url: url(entry),
|
|
account: account,
|
|
text: content(entry),
|
|
spoiler_text: content_warning(entry),
|
|
created_at: published(entry),
|
|
reply: thread?(entry),
|
|
language: content_language(entry),
|
|
visibility: visibility_scope(entry),
|
|
conversation: find_or_create_conversation(entry)
|
|
)
|
|
|
|
if thread?(entry)
|
|
Rails.logger.debug "Trying to attach #{status.id} (#{id(entry)}) to #{thread(entry).first}"
|
|
status.thread = find_or_resolve_status(status, *thread(entry))
|
|
end
|
|
|
|
mentions_from_xml(status, entry)
|
|
hashtags_from_xml(status, entry)
|
|
media_from_xml(status, entry)
|
|
|
|
[status, true]
|
|
end
|
|
|
|
def find_or_resolve_status(parent, uri, url)
|
|
status = find_status(uri)
|
|
|
|
ThreadResolveWorker.perform_async(parent.id, url) if status.nil?
|
|
|
|
status
|
|
end
|
|
|
|
def find_or_create_conversation(xml)
|
|
uri = xml.at_xpath('./ostatus:conversation', ostatus: TagManager::OS_XMLNS)&.attribute('ref')&.content
|
|
return if uri.nil?
|
|
|
|
if TagManager.instance.local_id?(uri)
|
|
local_id = TagManager.instance.unique_tag_to_local_id(uri, 'Conversation')
|
|
return Conversation.find_by(id: local_id)
|
|
end
|
|
|
|
Conversation.find_by(uri: uri)
|
|
end
|
|
|
|
def find_status(uri)
|
|
if TagManager.instance.local_id?(uri)
|
|
local_id = TagManager.instance.unique_tag_to_local_id(uri, 'Status')
|
|
return Status.find(local_id)
|
|
end
|
|
|
|
Status.find_by(uri: uri)
|
|
end
|
|
|
|
def mentions_from_xml(parent, xml)
|
|
processed_account_ids = []
|
|
|
|
xml.xpath('./xmlns:link[@rel="mentioned"]', xmlns: TagManager::XMLNS).each do |link|
|
|
next if [TagManager::TYPES[:group], 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 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 hashtags_from_xml(parent, xml)
|
|
tags = xml.xpath('./xmlns:category', xmlns: TagManager::XMLNS).map { |category| category['term'] }.select(&:present?)
|
|
ProcessHashtagsService.new.call(parent, tags)
|
|
end
|
|
|
|
def media_from_xml(parent, xml)
|
|
do_not_download = DomainBlock.find_by(domain: parent.account.domain)&.reject_media?
|
|
|
|
xml.xpath('./xmlns:link[@rel="enclosure"]', xmlns: 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 OpenURI::HTTPError, OpenSSL::SSL::SSLError, Paperclip::Errors::NotIdentifiedByImageMagickError
|
|
next
|
|
end
|
|
end
|
|
end
|
|
|
|
def id(xml = @xml)
|
|
xml.at_xpath('./xmlns:id', xmlns: TagManager::XMLNS).content
|
|
end
|
|
|
|
def verb(xml = @xml)
|
|
raw = xml.at_xpath('./activity:verb', activity: TagManager::AS_XMLNS).content
|
|
TagManager::VERBS.key(raw)
|
|
rescue
|
|
:post
|
|
end
|
|
|
|
def type(xml = @xml)
|
|
raw = xml.at_xpath('./activity:object-type', activity: TagManager::AS_XMLNS).content
|
|
TagManager::TYPES.key(raw)
|
|
rescue
|
|
:activity
|
|
end
|
|
|
|
def url(xml = @xml)
|
|
link = xml.at_xpath('./xmlns:link[@rel="alternate"]', xmlns: TagManager::XMLNS)
|
|
link.nil? ? nil : link['href']
|
|
end
|
|
|
|
def content(xml = @xml)
|
|
xml.at_xpath('./xmlns:content', xmlns: TagManager::XMLNS).content
|
|
end
|
|
|
|
def content_language(xml = @xml)
|
|
xml.at_xpath('./xmlns:content', xmlns: TagManager::XMLNS)['xml:lang']&.presence || 'en'
|
|
end
|
|
|
|
def content_warning(xml = @xml)
|
|
xml.at_xpath('./xmlns:summary', xmlns: TagManager::XMLNS)&.content || ''
|
|
end
|
|
|
|
def visibility_scope(xml = @xml)
|
|
xml.at_xpath('./mastodon:scope', mastodon: TagManager::MTDN_XMLNS)&.content&.to_sym || :public
|
|
end
|
|
|
|
def published(xml = @xml)
|
|
xml.at_xpath('./xmlns:published', xmlns: TagManager::XMLNS).content
|
|
end
|
|
|
|
def thread?(xml = @xml)
|
|
!xml.at_xpath('./thr:in-reply-to', thr: TagManager::THR_XMLNS).nil?
|
|
end
|
|
|
|
def thread(xml = @xml)
|
|
thr = xml.at_xpath('./thr:in-reply-to', thr: TagManager::THR_XMLNS)
|
|
[thr['ref'], thr['href']]
|
|
end
|
|
|
|
def account?(xml = @xml)
|
|
!xml.at_xpath('./xmlns:author', xmlns: TagManager::XMLNS).nil?
|
|
end
|
|
|
|
def redis
|
|
Redis.current
|
|
end
|
|
end
|
|
end
|