mastodon/spec/lib/activitypub/activity/undo_spec.rb
ThibG 5d9acc0ce4
Fix not handling Undo on some activity types when they aren't inlined (#14346)
* Fix not handling Undo on some activity types when they aren't inlined

When receiving an Undo for a non-inlined activity, try looking it up in
database using the URI. The queries are ad-hoc because we don't have a global
index of object URIs, and not all activity types are stored in database with
an index on their URI.

Announces are just statuses, and have an index on URIs, so this check can
be done efficiently.

Accepts cannot be handled at all because we don't record their URI at any
point.

Follows don't have an index on URI, but they have an index on the issuing
account, which should make such queries largely manageable.

Likes don't have an index on URI, they have an index on the issuing account,
but the number of favs per account may be very high, so I decided not to
handle that.

Blocks don't have an index on URI, but they have an index on the issuing
account, which should make such queries largely manageable.

In all cases, if an Undo could not be handled properly, we call `delete_later!`
because that does not require us to know more than the URI of the undone
property.

* Add tests

* Make newer blocks overwrite older ones

Allows re-synchronizing block info by re-blocking and un-blocking again
when the original Undo Block has been lost.
2020-07-22 11:45:35 +02:00

178 lines
4.4 KiB
Ruby

require 'rails_helper'
RSpec.describe ActivityPub::Activity::Undo do
let(:sender) { Fabricate(:account, domain: 'example.com') }
let(:json) do
{
'@context': 'https://www.w3.org/ns/activitystreams',
id: 'foo',
type: 'Undo',
actor: ActivityPub::TagManager.instance.uri_for(sender),
object: object_json,
}.with_indifferent_access
end
subject { described_class.new(json, sender) }
describe '#perform' do
context 'with Announce' do
let(:status) { Fabricate(:status) }
let(:object_json) do
{
id: 'bar',
type: 'Announce',
actor: ActivityPub::TagManager.instance.uri_for(sender),
object: ActivityPub::TagManager.instance.uri_for(status),
atomUri: 'barbar',
}
end
context do
before do
Fabricate(:status, reblog: status, account: sender, uri: 'bar')
end
it 'deletes the reblog' do
subject.perform
expect(sender.reblogged?(status)).to be false
end
end
context 'with atomUri' do
before do
Fabricate(:status, reblog: status, account: sender, uri: 'barbar')
end
it 'deletes the reblog by atomUri' do
subject.perform
expect(sender.reblogged?(status)).to be false
end
end
context 'with only object uri' do
let(:object_json) { 'bar' }
before do
Fabricate(:status, reblog: status, account: sender, uri: 'bar')
end
it 'deletes the reblog by uri' do
subject.perform
expect(sender.reblogged?(status)).to be false
end
end
end
context 'with Accept' do
let(:recipient) { Fabricate(:account) }
let(:object_json) do
{
id: 'bar',
type: 'Accept',
actor: ActivityPub::TagManager.instance.uri_for(sender),
object: 'follow-to-revoke',
}
end
before do
recipient.follow!(sender, uri: 'follow-to-revoke')
end
it 'deletes follow from recipient to sender' do
subject.perform
expect(recipient.following?(sender)).to be false
end
it 'creates a follow request from recipient to sender' do
subject.perform
expect(recipient.requested?(sender)).to be true
end
end
context 'with Block' do
let(:recipient) { Fabricate(:account) }
let(:object_json) do
{
id: 'bar',
type: 'Block',
actor: ActivityPub::TagManager.instance.uri_for(sender),
object: ActivityPub::TagManager.instance.uri_for(recipient),
}
end
before do
sender.block!(recipient, uri: 'bar')
end
it 'deletes block from sender to recipient' do
subject.perform
expect(sender.blocking?(recipient)).to be false
end
context 'with only object uri' do
let(:object_json) { 'bar' }
it 'deletes block from sender to recipient' do
subject.perform
expect(sender.blocking?(recipient)).to be false
end
end
end
context 'with Follow' do
let(:recipient) { Fabricate(:account) }
let(:object_json) do
{
id: 'bar',
type: 'Follow',
actor: ActivityPub::TagManager.instance.uri_for(sender),
object: ActivityPub::TagManager.instance.uri_for(recipient),
}
end
before do
sender.follow!(recipient, uri: 'bar')
end
it 'deletes follow from sender to recipient' do
subject.perform
expect(sender.following?(recipient)).to be false
end
context 'with only object uri' do
let(:object_json) { 'bar' }
it 'deletes follow from sender to recipient' do
subject.perform
expect(sender.following?(recipient)).to be false
end
end
end
context 'with Like' do
let(:status) { Fabricate(:status) }
let(:object_json) do
{
id: 'bar',
type: 'Like',
actor: ActivityPub::TagManager.instance.uri_for(sender),
object: ActivityPub::TagManager.instance.uri_for(status),
}
end
before do
Fabricate(:favourite, account: sender, status: status)
end
it 'deletes favourite from sender to status' do
subject.perform
expect(sender.favourited?(status)).to be false
end
end
end
end