user: add wait_and_refresh() for async three-way handshake case

This commit is contained in:
William Pitcock 2018-10-05 23:40:49 +00:00
parent 3e751496e3
commit e69faf550c
3 changed files with 28 additions and 2 deletions

View file

@ -738,4 +738,28 @@ def get_or_fetch(uri_or_nickname) do
get_or_fetch_by_nickname(uri_or_nickname)
end
end
# wait a period of time and return newest version of the User structs
# this is because we have synchronous follow APIs and need to simulate them
# with an async handshake
def wait_and_refresh(_, %User{local: true} = a, %User{local: true} = b) do
with %User{} = a <- Repo.get(User, a.id),
%User{} = b <- Repo.get(User, b.id) do
{:ok, a, b}
else
_e ->
:error
end
end
def wait_and_refresh(timeout, %User{} = a, %User{} = b) do
with :ok <- :timer.sleep(timeout),
%User{} = a <- Repo.get(User, a.id),
%User{} = b <- Repo.get(User, b.id) do
{:ok, a, b}
else
_e ->
:error
end
end
end

View file

@ -574,7 +574,8 @@ def reject_follow_request(%{assigns: %{user: followed}} = conn, %{"id" => id}) d
def follow(%{assigns: %{user: follower}} = conn, %{"id" => id}) do
with %User{} = followed <- Repo.get(User, id),
{:ok, follower} <- User.maybe_direct_follow(follower, followed),
{:ok, _activity} <- ActivityPub.follow(follower, followed) do
{:ok, _activity} <- ActivityPub.follow(follower, followed),
{:ok, follower, followed} <- User.wait_and_refresh(500, follower, followed) do
render(conn, AccountView, "relationship.json", %{user: follower, target: followed})
else
{:error, message} ->

View file

@ -23,7 +23,8 @@ def delete(%User{} = user, id) do
def follow(%User{} = follower, params) do
with {:ok, %User{} = followed} <- get_user(params),
{:ok, follower} <- User.maybe_direct_follow(follower, followed),
{:ok, activity} <- ActivityPub.follow(follower, followed) do
{:ok, activity} <- ActivityPub.follow(follower, followed),
{:ok, follower, followed} <- User.wait_and_refresh(500, follower, followed) do
{:ok, follower, followed, activity}
else
err -> err