catstodon/app/services/process_mentions_service.rb
ThibG 84cfee2488 Do not process undeliverable mentions (#5598)
* Resolve remote accounts when mentioned even if they are already known

This commit reduces the risk of not having up-to-date public key or protocol
information for a remote account, which is required to deliver toots
(especially direct messages).

* Do not add mentions in private messages for remote users we cannot deliver to

Mastodon does not deliver private and direct toots to OStatus users, as there
is no guarantee the remote software understands the toot's privacy. However,
users currently do not get any feedback on it (Mastodon won't attempt delivery,
but the toot will be displayed exactly the same way to the user).

This change introduces *some* feedback by not processing mentions that are
not going to be delivered. A long-term solution is still needed to have
delivery receipts or at least some better indication of what is going on, but
at least an user can see *something* is up.
2017-11-07 14:47:39 +01:00

55 lines
1.8 KiB
Ruby

# 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.text.scan(Account::MENTION_RE).each do |match|
begin
mentioned_account = resolve_remote_account_service.call(match.first.to_s)
rescue Goldfinger::Error, HTTP::Error
mentioned_account = nil
end
next if mentioned_account.nil? || (mentioned_account.ostatus? && status.stream_entry.hidden?)
mentioned_account.mentions.where(status: status).first_or_create(status: status)
end
status.mentions.includes(:account).each do |mention|
create_notification(status, mention)
end
end
private
def create_notification(status, mention)
mentioned_account = mention.account
if mentioned_account.local?
NotifyService.new.call(mentioned_account, mention)
elsif mentioned_account.ostatus? && !status.stream_entry.hidden?
NotificationWorker.perform_async(stream_entry_to_xml(status.stream_entry), status.account_id, mentioned_account.id)
elsif mentioned_account.activitypub?
ActivityPub::DeliveryWorker.perform_async(build_json(mention.status), mention.status.account_id, mentioned_account.inbox_url)
end
end
def build_json(status)
Oj.dump(ActivityPub::LinkedDataSignature.new(ActiveModelSerializers::SerializableResource.new(
status,
serializer: ActivityPub::ActivitySerializer,
adapter: ActivityPub::Adapter
).as_json).sign!(status.account))
end
def resolve_remote_account_service
ResolveRemoteAccountService.new
end
end