+
+ def remote_users(%{data: %{"to" => to} = data}) do
+ to = to ++ (data["cc"] || [])
+
+ to
+ |> Enum.map(fn id -> User.get_cached_by_ap_id(id) end)
+ |> Enum.filter(fn user -> user && !user.local end)
+ end
+
+ @doc "Pushes an activity to remote account."
+ def send_to_user(%{recipient: %{info: %{salmon: salmon}}} = params),
+ do: send_to_user(Map.put(params, :recipient, salmon))
+
+ def send_to_user(%{recipient: url, feed: feed, poster: poster} = params) when is_binary(url) do
+ with {:ok, %{status: code}} when code in 200..299 <-
+ poster.(
+ url,
+ feed,
+ [{"Content-Type", "application/magic-envelope+xml"}]
+ ) do
+ if !Map.has_key?(params, :unreachable_since) || params[:unreachable_since],
+ do: Instances.set_reachable(url)
+
+ Logger.debug(fn -> "Pushed to #{url}, code #{code}" end)
+ :ok
+ else
+ e ->
+ unless params[:unreachable_since], do: Instances.set_reachable(url)
+ Logger.debug(fn -> "Pushing Salmon to #{url} failed, #{inspect(e)}" end)
+ :error
+ end
+ end
+
+ def send_to_user(_), do: :noop
+
+ @supported_activities [
+ "Create",
+ "Follow",
+ "Like",
+ "Announce",
+ "Undo",
+ "Delete"
+ ]
+
+ @doc """
+ Publishes an activity to remote accounts
+ """
+ @spec publish(User.t(), Pleroma.Activity.t(), Pleroma.HTTP.t()) :: none
+ def publish(user, activity, poster \\ &@httpoison.post/3)
+
+ def publish(%{info: %{keys: keys}} = user, %{data: %{"type" => type}} = activity, poster)
+ when type in @supported_activities do
+ feed = ActivityRepresenter.to_simple_form(activity, user, true)
+
+ if feed do
+ feed =
+ ActivityRepresenter.wrap_with_entry(feed)
+ |> :xmerl.export_simple(:xmerl_xml)
+ |> to_string
+
+ {:ok, private, _} = keys_from_pem(keys)
+ {:ok, feed} = encode(private, feed)
+
+ remote_users = remote_users(activity)
+
+ salmon_urls = Enum.map(remote_users, & &1.info.salmon)
+ reachable_urls_metadata = Instances.filter_reachable(salmon_urls)
+ reachable_urls = Map.keys(reachable_urls_metadata)
+
+ remote_users
+ |> Enum.filter(&(&1.info.salmon in reachable_urls))
+ |> Enum.each(fn remote_user ->
+ Logger.debug(fn -> "Sending Salmon to #{remote_user.ap_id}" end)
+
+ Pleroma.Web.Federator.publish_single_salmon(%{
+ recipient: remote_user,
+ feed: feed,
+ poster: poster,
+ unreachable_since: reachable_urls_metadata[remote_user.info.salmon]
+ })
+ end)
+ end
+ end
+
+ def publish(%{id: id}, _, _), do: Logger.debug(fn -> "Keys missing for user #{id}" end)