Add semi-support for Video/Image objects in ActivityPub (#5848)

* Add semi-support for Video/Image objects in ActivityPub

Video and Image objects will create corresponding status records
with manually crafted text contents (title + URL)

* Extract html-url-finding logic into JsonLdHelper

* Fallback to id when url missing, extract supported object types
This commit is contained in:
Eugen Rochko 2017-11-30 04:06:20 +01:00 committed by GitHub
parent 85e97ecab6
commit 4c6b5dbe96
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6 changed files with 103 additions and 26 deletions

View File

@ -9,6 +9,24 @@ module JsonLdHelper
value.is_a?(Array) ? value.first : value
end
# The url attribute can be a string, an array of strings, or an array of objects.
# The objects could include a mimeType. Not-included mimeType means it's text/html.
def url_to_href(value, preferred_type = nil)
single_value = if value.is_a?(Array) && !value.first.is_a?(String)
value.find { |link| preferred_type.nil? || ((link['mimeType'].presence || 'text/html') == preferred_type) }
elsif value.is_a?(Array)
value.first
else
value
end
if single_value.nil? || single_value.is_a?(String)
single_value
else
single_value['href']
end
end
def as_array(value)
value.is_a?(Array) ? value : [value]
end

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@ -1,6 +1,9 @@
# frozen_string_literal: true
class ActivityPub::Activity::Create < ActivityPub::Activity
SUPPORTED_TYPES = %w(Article Note).freeze
CONVERTED_TYPES = %w(Image Video).freeze
def perform
return if delete_arrived_first?(object_uri) || unsupported_object_type?
@ -41,7 +44,7 @@ class ActivityPub::Activity::Create < ActivityPub::Activity
url: object_url || @object['id'],
account: @account,
text: text_from_content || '',
language: language_from_content,
language: detected_language,
spoiler_text: @object['summary'] || '',
created_at: @options[:override_timestamps] ? nil : @object['published'],
reply: @object['inReplyTo'].present?,
@ -165,40 +168,62 @@ class ActivityPub::Activity::Create < ActivityPub::Activity
end
def text_from_content
return Formatter.instance.linkify([text_from_name, object_url || @object['id']].join(' ')) if converted_object_type?
if @object['content'].present?
@object['content']
elsif language_map?
elsif content_language_map?
@object['contentMap'].values.first
end
end
def language_from_content
return LanguageDetector.instance.detect(text_from_content, @account) unless language_map?
def text_from_name
if @object['name'].present?
@object['name']
elsif name_language_map?
@object['nameMap'].values.first
end
end
def detected_language
if content_language_map?
@object['contentMap'].keys.first
elsif name_language_map?
@object['nameMap'].keys.first
elsif supported_object_type?
LanguageDetector.instance.detect(text_from_content, @account)
end
end
def object_url
return if @object['url'].blank?
value = first_of_value(@object['url'])
return value if value.is_a?(String)
value['href']
url_to_href(@object['url'], 'text/html')
end
def language_map?
def content_language_map?
@object['contentMap'].is_a?(Hash) && !@object['contentMap'].empty?
end
def name_language_map?
@object['nameMap'].is_a?(Hash) && !@object['nameMap'].empty?
end
def unsupported_object_type?
@object.is_a?(String) || !%w(Article Note).include?(@object['type'])
@object.is_a?(String) || !(supported_object_type? || converted_object_type?)
end
def unsupported_media_type?(mime_type)
mime_type.present? && !(MediaAttachment::IMAGE_MIME_TYPES + MediaAttachment::VIDEO_MIME_TYPES).include?(mime_type)
end
def supported_object_type?
SUPPORTED_TYPES.include?(@object['type'])
end
def converted_object_type?
CONVERTED_TYPES.include?(@object['type'])
end
def skip_download?
return @skip_download if defined?(@skip_download)
@skip_download ||= DomainBlock.find_by(domain: @account.domain)&.reject_media?

View File

@ -51,12 +51,7 @@ class Formatter
def simplified_format(account)
return reformat(account.note).html_safe unless account.local? # rubocop:disable Rails/OutputSafety
html = encode_and_link_urls(account.note)
html = simple_format(html, {}, sanitize: false)
html = html.delete("\n")
html.html_safe # rubocop:disable Rails/OutputSafety
linkify(account.note)
end
def sanitize(html, config)
@ -69,6 +64,14 @@ class Formatter
html.html_safe # rubocop:disable Rails/OutputSafety
end
def linkify(text)
html = encode_and_link_urls(text)
html = simple_format(html, {}, sanitize: false)
html = html.delete("\n")
html.html_safe # rubocop:disable Rails/OutputSafety
end
private
def encode(html)

View File

@ -42,7 +42,7 @@ class ActivityPub::FetchRemoteStatusService < BaseService
end
def expected_type?
%w(Note Article).include? @json['type']
(ActivityPub::Activity::Create::SUPPORTED_TYPES + ActivityPub::Activity::Create::CONVERTED_TYPES).include? @json['type']
end
def needs_update(actor)

View File

@ -107,12 +107,7 @@ class ActivityPub::ProcessAccountService < BaseService
def url
return if @json['url'].blank?
value = first_of_value(@json['url'])
return value if value.is_a?(String)
value['href']
url_to_href(@json['url'], 'text/html')
end
def outbox_total_items

View File

@ -1,6 +1,8 @@
require 'rails_helper'
RSpec.describe ActivityPub::FetchRemoteStatusService do
include ActionView::Helpers::TextHelper
let(:sender) { Fabricate(:account) }
let(:recipient) { Fabricate(:account) }
let(:valid_domain) { Rails.configuration.x.local_domain }
@ -19,6 +21,7 @@ RSpec.describe ActivityPub::FetchRemoteStatusService do
describe '#call' do
before do
stub_request(:head, 'https://example.com/watch?v=12345').to_return(status: 404, body: '')
subject.call(object[:id], prefetched_body: Oj.dump(object))
end
@ -32,5 +35,38 @@ RSpec.describe ActivityPub::FetchRemoteStatusService do
expect(status.text).to eq 'Lorem ipsum'
end
end
context 'with Video object' do
let(:object) do
{
'@context': 'https://www.w3.org/ns/activitystreams',
id: "https://#{valid_domain}/@foo/1234",
type: 'Video',
name: 'Nyan Cat 10 hours remix',
attributedTo: ActivityPub::TagManager.instance.uri_for(sender),
url: [
{
type: 'Link',
mimeType: 'application/x-bittorrent',
href: 'https://example.com/12345.torrent',
},
{
type: 'Link',
mimeType: 'text/html',
href: 'https://example.com/watch?v=12345',
},
],
}
end
it 'creates status' do
status = sender.statuses.first
expect(status).to_not be_nil
expect(status.url).to eq 'https://example.com/watch?v=12345'
expect(strip_tags(status.text)).to eq 'Nyan Cat 10 hours remix https://example.com/watch?v=12345'
end
end
end
end