Fix incoming Accept activities from participations we don't already have

Signed-off-by: Thomas Citharel <tcit@tcit.fr>
This commit is contained in:
Thomas Citharel 2022-03-31 10:44:08 +02:00
parent 4c9065ce68
commit c56b898379
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2 changed files with 89 additions and 11 deletions

View file

@ -850,8 +850,8 @@ defmodule Mobilizon.Federation.ActivityPub.Transmogrifier do
# Handle incoming `Accept` activities wrapping a `Join` activity on an event # Handle incoming `Accept` activities wrapping a `Join` activity on an event
defp do_handle_incoming_accept_join(join_object, %Actor{} = actor_accepting) do defp do_handle_incoming_accept_join(join_object, %Actor{} = actor_accepting) do
case get_participant(join_object, actor_accepting) do case get_participant(join_object, actor_accepting) do
{:ok, participant} -> {:ok, activity, participant} ->
do_handle_incoming_accept_join_event(participant, actor_accepting) do_handle_incoming_accept_join_event(participant, actor_accepting, activity)
{:error, _err} -> {:error, _err} ->
case get_member(join_object) do case get_member(join_object) do
@ -870,17 +870,22 @@ defmodule Mobilizon.Federation.ActivityPub.Transmogrifier do
end end
end end
defp do_handle_incoming_accept_join_event(%Participant{role: :participant}, _actor) do defp do_handle_incoming_accept_join_event(
%Participant{role: :participant} = participant,
_actor,
activity
) do
Logger.debug( Logger.debug(
"Tried to handle an Accept activity on a Join activity with a event object but the participant is already validated" "Tried to handle an Accept activity on a Join activity with a event object but the participant is already validated"
) )
nil {:ok, activity, participant}
end end
defp do_handle_incoming_accept_join_event( defp do_handle_incoming_accept_join_event(
%Participant{role: role, event: event} = participant, %Participant{role: role, event: event} = participant,
%Actor{} = actor_accepting %Actor{} = actor_accepting,
_activity
) )
when role in [:not_approved, :rejected] do when role in [:not_approved, :rejected] do
with %Event{} = event <- Events.get_event_with_preload!(event.id), with %Event{} = event <- Events.get_event_with_preload!(event.id),
@ -932,7 +937,7 @@ defmodule Mobilizon.Federation.ActivityPub.Transmogrifier do
# Handle incoming `Reject` activities wrapping a `Join` activity on an event # Handle incoming `Reject` activities wrapping a `Join` activity on an event
defp do_handle_incoming_reject_join(join_object, %Actor{} = actor_accepting) do defp do_handle_incoming_reject_join(join_object, %Actor{} = actor_accepting) do
with {:join_event, {:ok, %Participant{event: event, role: role} = participant}} with {:join_event, {:ok, _activity, %Participant{event: event, role: role} = participant}}
when role != :rejected <- when role != :rejected <-
{:join_event, get_participant(join_object, actor_accepting)}, {:join_event, get_participant(join_object, actor_accepting)},
{:event, %Event{} = event} <- {:event, Events.get_event_with_preload!(event.id)}, {:event, %Event{} = event} <- {:event, Events.get_event_with_preload!(event.id)},
@ -943,7 +948,7 @@ defmodule Mobilizon.Federation.ActivityPub.Transmogrifier do
:ok <- Participation.send_emails_to_local_user(participant) do :ok <- Participation.send_emails_to_local_user(participant) do
{:ok, activity, participant} {:ok, activity, participant}
else else
{:join_event, {:ok, %Participant{role: :rejected}}} -> {:join_event, {:ok, _activity, %Participant{role: :rejected}}} ->
Logger.warn( Logger.warn(
"Tried to handle an Reject activity on a Join activity with a event object but the participant is already rejected" "Tried to handle an Reject activity on a Join activity with a event object but the participant is already rejected"
) )
@ -1040,18 +1045,18 @@ defmodule Mobilizon.Federation.ActivityPub.Transmogrifier do
end end
end end
defp get_participant(join_object, %Actor{} = actor_accepting, loop \\ 1) do defp get_participant(join_object, %Actor{} = actor_accepting, loop \\ 1, activity \\ nil) do
with join_object_id when not is_nil(join_object_id) <- Utils.get_url(join_object), with join_object_id when not is_nil(join_object_id) <- Utils.get_url(join_object),
{:not_found, %Participant{} = participant} <- {:not_found, %Participant{} = participant} <-
{:not_found, Events.get_participant_by_url(join_object_id)} do {:not_found, Events.get_participant_by_url(join_object_id)} do
{:ok, participant} {:ok, activity, participant}
else else
{:not_found, _err} -> {:not_found, _err} ->
with true <- is_map(join_object), with true <- is_map(join_object),
true <- loop < 2, true <- loop < 2,
true <- Utils.are_same_origin?(actor_accepting.url, join_object["id"]), true <- Utils.are_same_origin?(actor_accepting.url, join_object["id"]),
{:ok, _activity, %Participant{url: participant_url}} <- handle_incoming(join_object) do {:ok, activity, %Participant{url: participant_url}} <- handle_incoming(join_object) do
get_participant(participant_url, actor_accepting, 2) get_participant(participant_url, actor_accepting, 2, activity)
else else
_ -> _ ->
{:error, "Participant URL not found"} {:error, "Participant URL not found"}

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@ -0,0 +1,73 @@
defmodule Mobilizon.Federation.ActivityPub.Transmogrifier.AcceptTest do
use Mobilizon.DataCase
import Mox
alias Mobilizon.Federation.ActivityPub.Transmogrifier
alias Mobilizon.Service.HTTP.ActivityPub.Mock
describe "Receiving an Accept Join Event activity from a foreign instance" do
@base_actor_data File.read!("test/fixtures/mastodon-actor.json")
|> Jason.decode!()
@actor_url "https://mobilizon.extinctionrebellion.fr/@anonymous"
@actor_data @base_actor_data
|> Map.put("id", @actor_url)
|> Map.put("preferredUsername", "anonymous")
@osmi_actor_url "https://mobilizon.extinctionrebellion.fr/@osmi"
@osmi_actor_data @base_actor_data
|> Map.put("id", @osmi_actor_url)
|> Map.put("preferredUsername", "osmi")
@xr_nantes_actor_url "https://mobilizon.extinctionrebellion.fr/@xr_nantes"
@xr_nantes_actor_data @base_actor_data
|> Map.put("id", @xr_nantes_actor_url)
|> Map.put("preferredUsername", "xr_nantes")
@event_url "https://mobilizon.extinctionrebellion.fr/events/d70f8e0d-62dc-4897-a855-ebcbe9798fc1"
@event_data File.read!("test/fixtures/mobilizon-post-activity.json")
|> Jason.decode!()
|> Map.get("object")
|> Map.put("id", @event_url)
|> Map.put("actor", @osmi_actor_url)
|> Map.put("attributedTo", @xr_nantes_actor_url)
|> Map.put("tag", [])
test "When the event is remote" do
object = %{
"actor" => @actor_url,
"id" =>
"https://mobilizon.extinctionrebellion.fr/join/event/b67cf172-af23-4ae8-b00e-a2e3643ccb21",
"object" =>
"https://mobilizon.extinctionrebellion.fr/events/d70f8e0d-62dc-4897-a855-ebcbe9798fc1",
"participationMessage" => nil,
"published" => "2022-03-28T20:11:11Z",
"type" => "Join"
}
activity = %{
"type" => "Accept",
"object" => object,
"actor" => @actor_url,
"id" =>
"https://mobilizon.extinctionrebellion.fr/join/event/b67cf172-af23-4ae8-b00e-a2e3643ccb21/activity"
}
Mock
|> expect(:call, 4, fn
%{method: :get, url: @actor_url}, _opts ->
{:ok, %Tesla.Env{status: 200, body: @actor_data}}
%{method: :get, url: @osmi_actor_url}, _opts ->
{:ok, %Tesla.Env{status: 200, body: @osmi_actor_data}}
%{method: :get, url: @xr_nantes_actor_url}, _opts ->
{:ok, %Tesla.Env{status: 200, body: @xr_nantes_actor_data}}
%{method: :get, url: @event_url}, _opts ->
{:ok, %Tesla.Env{status: 200, body: @event_data}}
end)
assert {:ok, _activity, _object} = Transmogrifier.handle_incoming(activity)
end
end
end