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Undoing: Move undoing likes to the pipeline everywhere.

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lain 2020-05-05 15:08:41 +02:00
parent f1da8882f9
commit a3071f0231
10 changed files with 75 additions and 105 deletions
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12
lib/pleroma/user.ex
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@ -29,7 +29,9 @@ defmodule Pleroma.User do
alias Pleroma.UserRelationship
alias Pleroma.Web
alias Pleroma.Web.ActivityPub.ActivityPub
alias Pleroma.Web.ActivityPub.Builder
alias Pleroma.Web.ActivityPub.ObjectValidators.Types
alias Pleroma.Web.ActivityPub.Pipeline
alias Pleroma.Web.ActivityPub.Utils
alias Pleroma.Web.CommonAPI
alias Pleroma.Web.CommonAPI.Utils, as: CommonUtils
@ -1553,11 +1555,13 @@ defp delete_activity(%{data: %{"type" => "Create"}} = activity) do
end
defp delete_activity(%{data: %{"type" => "Like"}} = activity) do
object = Object.normalize(activity)
actor =
activity.actor
|> get_cached_by_ap_id()
activity.actor
|> get_cached_by_ap_id()
|> ActivityPub.unlike(object)
{:ok, undo, _} = Builder.undo(actor, activity)
Pipeline.common_pipeline(undo, local: true)
end
defp delete_activity(%{data: %{"type" => "Announce"}} = activity) do

23
lib/pleroma/web/activity_pub/activity_pub.ex
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@ -398,29 +398,6 @@ defp do_unreact_with_emoji(user, reaction_id, options) do
end
end
@spec unlike(User.t(), Object.t(), String.t() | nil, boolean()) ::
{:ok, Activity.t(), Activity.t(), Object.t()} | {:ok, Object.t()} | {:error, any()}
def unlike(%User{} = actor, %Object{} = object, activity_id \\ nil, local \\ true) do
with {:ok, result} <-
Repo.transaction(fn -> do_unlike(actor, object, activity_id, local) end) do
result
end
end
defp do_unlike(actor, object, activity_id, local) do
with %Activity{} = like_activity <- get_existing_like(actor.ap_id, object),
unlike_data <- make_unlike_data(actor, like_activity, activity_id),
{:ok, unlike_activity} <- insert(unlike_data, local),
{:ok, _activity} <- Repo.delete(like_activity),
{:ok, object} <- remove_like_from_object(like_activity, object),
:ok <- maybe_federate(unlike_activity) do
{:ok, unlike_activity, like_activity, object}
else
nil -> {:ok, object}
{:error, error} -> Repo.rollback(error)
end
end
@spec announce(User.t(), Object.t(), String.t() | nil, boolean(), boolean()) ::
{:ok, Activity.t(), Object.t()} | {:error, any()}
def announce(

19
lib/pleroma/web/activity_pub/side_effects.ex
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@ -5,8 +5,10 @@ defmodule Pleroma.Web.ActivityPub.SideEffects do
liked object, a `Follow` activity will add the user to the follower
collection, and so on.
"""
alias Pleroma.Activity
alias Pleroma.Notification
alias Pleroma.Object
alias Pleroma.Repo
alias Pleroma.Web.ActivityPub.Utils
def handle(object, meta \\ [])
@ -23,8 +25,25 @@ def handle(%{data: %{"type" => "Like"}} = object, meta) do
{:ok, object, meta}
end
def handle(%{data: %{"type" => "Undo", "object" => undone_object}} = object, meta) do
with undone_object <- Activity.get_by_ap_id(undone_object),
:ok <- handle_undoing(undone_object) do
{:ok, object, meta}
end
end
# Nothing to do
def handle(object, meta) do
{:ok, object, meta}
end
def handle_undoing(%{data: %{"type" => "Like"}} = object) do
with %Object{} = liked_object <- Object.get_by_ap_id(object.data["object"]),
{:ok, _} <- Utils.remove_like_from_object(object, liked_object),
{:ok, _} <- Repo.delete(object) do
:ok
end
end
def handle_undoing(object), do: {:error, ["don't know how to handle", object]}
end

11
lib/pleroma/web/activity_pub/transmogrifier.ex
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@ -865,19 +865,12 @@ def handle_incoming(
def handle_incoming(
%{
"type" => "Undo",
"object" => %{"type" => "Like", "object" => object_id},
"actor" => _actor,
"id" => id
"object" => %{"type" => "Like"}
} = data,
_options
) do
with actor <- Containment.get_actor(data),
{:ok, %User{} = actor} <- User.get_or_fetch_by_ap_id(actor),
{:ok, object} <- get_obj_helper(object_id),
{:ok, activity, _, _} <- ActivityPub.unlike(actor, object, id, false) do
with {:ok, activity, _} <- Pipeline.common_pipeline(data, local: false) do
{:ok, activity}
else
_e -> :error
end
end

9
lib/pleroma/web/common_api/common_api.ex
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@ -166,9 +166,12 @@ def favorite_helper(user, id) do
def unfavorite(id, user) do
with {_, %Activity{data: %{"type" => "Create"}} = activity} <-
{:find_activity, Activity.get_by_id(id)} do
object = Object.normalize(activity)
ActivityPub.unlike(user, object)
{:find_activity, Activity.get_by_id(id)},
%Object{} = note <- Object.normalize(activity, false),
%Activity{} = like <- Utils.get_existing_like(user.ap_id, note),
{:ok, undo, _} <- Builder.undo(user, like),
{:ok, activity, _} <- Pipeline.common_pipeline(undo, local: false) do
{:ok, activity}
else
{:find_activity, _} -> {:error, :not_found}
_ -> {:error, dgettext("errors", "Could not unfavorite")}

6
lib/pleroma/web/mastodon_api/controllers/status_controller.ex
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@ -222,9 +222,9 @@ def favourite(%{assigns: %{user: user}} = conn, %{"id" => activity_id}) do
end
@doc "POST /api/v1/statuses/:id/unfavourite"
def unfavourite(%{assigns: %{user: user}} = conn, %{"id" => ap_id_or_id}) do
with {:ok, _, _, %{data: %{"id" => id}}} <- CommonAPI.unfavorite(ap_id_or_id, user),
%Activity{} = activity <- Activity.get_create_by_object_ap_id(id) do
def unfavourite(%{assigns: %{user: user}} = conn, %{"id" => activity_id}) do
with {:ok, _unfav} <- CommonAPI.unfavorite(activity_id, user),
%Activity{} = activity <- Activity.get_by_id(activity_id) do
try_render(conn, "show.json", activity: activity, for: user, as: :activity)
end
end

2
test/notification_test.exs
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@ -724,7 +724,7 @@ test "liking an activity results in 1 notification, then 0 if the activity is un
assert length(Notification.for_user(user)) == 1
{:ok, _, _, _} = CommonAPI.unfavorite(activity.id, other_user)
{:ok, _} = CommonAPI.unfavorite(activity.id, other_user)
assert Enum.empty?(Notification.for_user(user))
end

60
test/web/activity_pub/activity_pub_test.exs
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@ -995,66 +995,6 @@ test "reverts emoji unreact on error" do
end
end
describe "unliking" do
test_with_mock "sends an activity to federation", Federator, [:passthrough], [] do
Config.put([:instance, :federating], true)
note_activity = insert(:note_activity)
object = Object.normalize(note_activity)
user = insert(:user)
{:ok, object} = ActivityPub.unlike(user, object)
refute called(Federator.publish())
{:ok, _like_activity} = CommonAPI.favorite(user, note_activity.id)
object = Object.get_by_id(object.id)
assert object.data["like_count"] == 1
{:ok, unlike_activity, _, object} = ActivityPub.unlike(user, object)
assert object.data["like_count"] == 0
assert called(Federator.publish(unlike_activity))
end
test "reverts unliking on error" do
note_activity = insert(:note_activity)
user = insert(:user)
{:ok, like_activity} = CommonAPI.favorite(user, note_activity.id)
object = Object.normalize(note_activity)
assert object.data["like_count"] == 1
with_mock(Utils, [:passthrough], maybe_federate: fn _ -> {:error, :reverted} end) do
assert {:error, :reverted} = ActivityPub.unlike(user, object)
end
assert Object.get_by_ap_id(object.data["id"]) == object
assert object.data["like_count"] == 1
assert Activity.get_by_id(like_activity.id)
end
test "unliking a previously liked object" do
note_activity = insert(:note_activity)
object = Object.normalize(note_activity)
user = insert(:user)
# Unliking something that hasn't been liked does nothing
{:ok, object} = ActivityPub.unlike(user, object)
assert object.data["like_count"] == 0
{:ok, like_activity} = CommonAPI.favorite(user, note_activity.id)
object = Object.get_by_id(object.id)
assert object.data["like_count"] == 1
{:ok, unlike_activity, _, object} = ActivityPub.unlike(user, object)
assert object.data["like_count"] == 0
assert Activity.get_by_id(like_activity.id) == nil
assert note_activity.actor in unlike_activity.recipients
end
end
describe "announcing an object" do
test "adds an announce activity to the db" do
note_activity = insert(:note_activity)

29
test/web/activity_pub/side_effects_test.exs
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@ -5,6 +5,7 @@
defmodule Pleroma.Web.ActivityPub.SideEffectsTest do
use Pleroma.DataCase
alias Pleroma.Activity
alias Pleroma.Notification
alias Pleroma.Object
alias Pleroma.Repo
@ -15,6 +16,34 @@ defmodule Pleroma.Web.ActivityPub.SideEffectsTest do
import Pleroma.Factory
describe "Undo objects" do
setup do
poster = insert(:user)
user = insert(:user)
{:ok, post} = CommonAPI.post(poster, %{"status" => "hey"})
{:ok, like} = CommonAPI.favorite(user, post.id)
{:ok, undo_data, _meta} = Builder.undo(user, like)
{:ok, like_undo, _meta} = ActivityPub.persist(undo_data, local: true)
%{like_undo: like_undo, post: post, like: like}
end
test "a like undo removes the like from the object", %{like_undo: like_undo, post: post} do
{:ok, _like_undo, _} = SideEffects.handle(like_undo)
object = Object.get_by_ap_id(post.data["object"])
assert object.data["like_count"] == 0
assert object.data["likes"] == []
end
test "deletes the original like", %{like_undo: like_undo, like: like} do
{:ok, _like_undo, _} = SideEffects.handle(like_undo)
refute Activity.get_by_id(like.id)
end
end
describe "like objects" do
setup do
poster = insert(:user)

9
test/web/activity_pub/transmogrifier/undo_handling_test.exs
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@ -6,6 +6,7 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier.UndoHandlingTest do
use Pleroma.DataCase
alias Pleroma.Activity
alias Pleroma.Object
alias Pleroma.User
alias Pleroma.Web.ActivityPub.Transmogrifier
alias Pleroma.Web.CommonAPI
@ -67,7 +68,11 @@ test "it works for incoming unlikes with an existing like activity" do
assert data["actor"] == "http://mastodon.example.org/users/admin"
assert data["type"] == "Undo"
assert data["id"] == "http://mastodon.example.org/users/admin#likes/2/undo"
assert data["object"]["id"] == "http://mastodon.example.org/users/admin#likes/2"
assert data["object"] == "http://mastodon.example.org/users/admin#likes/2"
note = Object.get_by_ap_id(like_data["object"])
assert note.data["like_count"] == 0
assert note.data["likes"] == []
end
test "it works for incoming unlikes with an existing like activity and a compact object" do
@ -94,7 +99,7 @@ test "it works for incoming unlikes with an existing like activity and a compact
assert data["actor"] == "http://mastodon.example.org/users/admin"
assert data["type"] == "Undo"
assert data["id"] == "http://mastodon.example.org/users/admin#likes/2/undo"
assert data["object"]["id"] == "http://mastodon.example.org/users/admin#likes/2"
assert data["object"] == "http://mastodon.example.org/users/admin#likes/2"
end
test "it works for incoming unannounces with an existing notice" do