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# 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.Activity
alias Pleroma.Notification
alias Pleroma.Object
alias Pleroma.Pagination
alias Pleroma.Repo
alias Pleroma.User
alias Pleroma.Web.CommonAPI
alias Pleroma.Web.CommonAPI.Utils
import Ecto.Query
import Ecto.Changeset
schema "notifications" do
field(:seen, :boolean, default: false)
belongs_to(:user, User, type: Pleroma.FlakeId)
belongs_to(:activity, Activity, type: Pleroma.FlakeId)
timestamps()
end
def changeset(%Notification{} = notification, attrs) do
notification
|> cast(attrs, [:seen])
end
def for_user_query(user) do
Notification
|> where(user_id: ^user.id)
|> join(:inner, [n], activity in assoc(n, :activity))
|> join(:left, [n, a], object in Object,
on:
fragment(
"(?->>'id') = COALESCE((? -> 'object'::text) ->> 'id'::text)",
object.data,
a.data
)
)
|> preload([n, a, o], activity: {a, object: o})
end
def for_user(user, opts \\ %{}) do
user
|> for_user_query()
|> Pagination.fetch_paginated(opts)
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 read_one(%User{} = user, notification_id) do
with {:ok, %Notification{} = notification} <- get(user, notification_id) do
notification
|> changeset(%{seen: true})
|> Repo.update()
end
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
CommonAPI.thread_muted?(user, activity) 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
|
