# Pleroma: A lightweight social networking server # Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/> # SPDX-License-Identifier: AGPL-3.0-only defmodule Pleroma.Notification do use Ecto.Schema alias Pleroma.{User, Activity, Notification, Repo} alias Pleroma.Web.CommonAPI.Utils import Ecto.Query schema "notifications" do field(:seen, :boolean, default: false) belongs_to(:user, User, type: Pleroma.FlakeId) belongs_to(:activity, Activity, type: Pleroma.FlakeId) timestamps() end # TODO: Make generic and unify (see activity_pub.ex) defp restrict_max(query, %{"max_id" => max_id}) do from(activity in query, where: activity.id < ^max_id) end defp restrict_max(query, _), do: query defp restrict_since(query, %{"since_id" => since_id}) do from(activity in query, where: activity.id > ^since_id) end defp restrict_since(query, _), do: query def for_user(user, opts \\ %{}) do query = from( n in Notification, where: n.user_id == ^user.id, order_by: [desc: n.id], join: activity in assoc(n, :activity), preload: [activity: activity], limit: 20 ) query = query |> restrict_since(opts) |> restrict_max(opts) Repo.all(query) end def set_read_up_to(%{id: user_id} = _user, id) do query = from( n in Notification, where: n.user_id == ^user_id, where: n.id <= ^id, update: [ set: [seen: true] ] ) Repo.update_all(query, []) end def get(%{id: user_id} = _user, id) do query = from( n in Notification, where: n.id == ^id, join: activity in assoc(n, :activity), preload: [activity: activity] ) notification = Repo.one(query) case notification do %{user_id: ^user_id} -> {:ok, notification} _ -> {:error, "Cannot get notification"} end end def clear(user) do from(n in Notification, where: n.user_id == ^user.id) |> Repo.delete_all() end def dismiss(%{id: user_id} = _user, id) do notification = Repo.get(Notification, id) case notification do %{user_id: ^user_id} -> Repo.delete(notification) _ -> {:error, "Cannot dismiss notification"} end end def create_notifications(%Activity{data: %{"to" => _, "type" => type}} = activity) when type in ["Create", "Like", "Announce", "Follow"] do users = get_notified_from_activity(activity) notifications = Enum.map(users, fn user -> create_notification(activity, user) end) {:ok, notifications} end def create_notifications(_), do: {:ok, []} # TODO move to sql, too. def create_notification(%Activity{} = activity, %User{} = user) do unless User.blocks?(user, %{ap_id: activity.data["actor"]}) or user.ap_id == activity.data["actor"] or (activity.data["type"] == "Follow" and Enum.any?(Notification.for_user(user), fn notif -> notif.activity.data["type"] == "Follow" and notif.activity.data["actor"] == activity.data["actor"] end)) do notification = %Notification{user_id: user.id, activity: activity} {:ok, notification} = Repo.insert(notification) Pleroma.Web.Streamer.stream("user", notification) Pleroma.Web.Push.send(notification) notification end end def get_notified_from_activity(activity, local_only \\ true) def get_notified_from_activity( %Activity{data: %{"to" => _, "type" => type} = _data} = activity, local_only ) when type in ["Create", "Like", "Announce", "Follow"] do recipients = [] |> Utils.maybe_notify_to_recipients(activity) |> Utils.maybe_notify_mentioned_recipients(activity) |> Enum.uniq() User.get_users_from_set(recipients, local_only) end def get_notified_from_activity(_, _local_only), do: [] end