mirror of
https://github.com/mastodon/mastodon.git
synced 2024-11-27 15:54:32 +00:00
3f9b28ce26
* Add support for fetching Create and Announce activities by URI This should improve compatibility with ZAP and offer a way to fetch boosts, which is currently not possible. * Add tests
62 lines
1.8 KiB
Ruby
62 lines
1.8 KiB
Ruby
# frozen_string_literal: true
|
|
|
|
class ActivityPub::FetchRemoteStatusService < BaseService
|
|
include JsonLdHelper
|
|
|
|
# Should be called when uri has already been checked for locality
|
|
def call(uri, id: true, prefetched_body: nil, on_behalf_of: nil)
|
|
@json = begin
|
|
if prefetched_body.nil?
|
|
fetch_resource(uri, id, on_behalf_of)
|
|
else
|
|
body_to_json(prefetched_body, compare_id: id ? uri : nil)
|
|
end
|
|
end
|
|
|
|
return unless supported_context?
|
|
|
|
actor_id = nil
|
|
activity_json = nil
|
|
|
|
if expected_object_type?
|
|
actor_id = value_or_id(first_of_value(@json['attributedTo']))
|
|
activity_json = { 'type' => 'Create', 'actor' => actor_id, 'object' => @json }
|
|
elsif expected_activity_type?
|
|
actor_id = value_or_id(first_of_value(@json['actor']))
|
|
activity_json = @json
|
|
end
|
|
|
|
return if activity_json.nil? || !trustworthy_attribution?(@json['id'], actor_id)
|
|
|
|
actor = ActivityPub::TagManager.instance.uri_to_resource(actor_id, Account)
|
|
actor = ActivityPub::FetchRemoteAccountService.new.call(actor_id, id: true) if actor.nil? || needs_update?(actor)
|
|
|
|
return if actor.nil? || actor.suspended?
|
|
|
|
ActivityPub::Activity.factory(activity_json, actor).perform
|
|
end
|
|
|
|
private
|
|
|
|
def trustworthy_attribution?(uri, attributed_to)
|
|
return false if uri.nil? || attributed_to.nil?
|
|
Addressable::URI.parse(uri).normalized_host.casecmp(Addressable::URI.parse(attributed_to).normalized_host).zero?
|
|
end
|
|
|
|
def supported_context?
|
|
super(@json)
|
|
end
|
|
|
|
def expected_activity_type?
|
|
equals_or_includes_any?(@json['type'], %w(Create Announce))
|
|
end
|
|
|
|
def expected_object_type?
|
|
equals_or_includes_any?(@json['type'], ActivityPub::Activity::Create::SUPPORTED_TYPES + ActivityPub::Activity::Create::CONVERTED_TYPES)
|
|
end
|
|
|
|
def needs_update?(actor)
|
|
actor.possibly_stale?
|
|
end
|
|
end
|