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# frozen_string_literal: true
class ProcessMentionsService < BaseService
include StreamEntryRenderer
# Scan status for mentions and fetch remote mentioned users, create
# local mention pointers, send Salmon notifications to mentioned
# remote users
# @param [Status] status
def call(status)
return unless status.local?
@status = status
mentions = []
status.text = status.text.gsub(Account::MENTION_RE) do |match|
username, domain = Regexp.last_match(1).split('@')
mentioned_account = Account.find_remote(username, domain)
if mention_undeliverable?(mentioned_account)
begin
mentioned_account = resolve_account_service.call(Regexp.last_match(1))
rescue Goldfinger::Error, HTTP::Error, OpenSSL::SSL::SSLError, Mastodon::UnexpectedResponseError
mentioned_account = nil
end
end
next match if mention_undeliverable?(mentioned_account) || mentioned_account&.suspended?
mentions << mentioned_account.mentions.where(status: status).first_or_create(status: status)
"@#{mentioned_account.acct}"
end
status.save!
mentions.each { |mention| create_notification(mention) }
end
private
def mention_undeliverable?(mentioned_account)
mentioned_account.nil? || (!mentioned_account.local? && mentioned_account.ostatus? && @status.stream_entry.hidden?)
end
def create_notification(mention)
mentioned_account = mention.account
if mentioned_account.local?
LocalNotificationWorker.perform_async(mentioned_account.id, mention.id, mention.class.name)
elsif mentioned_account.ostatus? && !@status.stream_entry.hidden? && !@status.local_only?
NotificationWorker.perform_async(ostatus_xml, @status.account_id, mentioned_account.id)
elsif mentioned_account.activitypub? && !@status.local_only?
ActivityPub::DeliveryWorker.perform_async(activitypub_json, mention.status.account_id, mentioned_account.inbox_url)
end
end
def ostatus_xml
@ostatus_xml ||= stream_entry_to_xml(@status.stream_entry)
end
def activitypub_json
return @activitypub_json if defined?(@activitypub_json)
payload = ActiveModelSerializers::SerializableResource.new(
@status,
serializer: ActivityPub::ActivitySerializer,
adapter: ActivityPub::Adapter
).as_json
@activitypub_json = Oj.dump(@status.distributable? ? ActivityPub::LinkedDataSignature.new(payload).sign!(@status.account) : payload)
end
def resolve_account_service
ResolveAccountService.new
end
end
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