286 lines
		
	
	
	
		
			7.5 KiB
		
	
	
	
		
			Elixir
		
	
	
	
	
	
			
		
		
	
	
			286 lines
		
	
	
	
		
			7.5 KiB
		
	
	
	
		
			Elixir
		
	
	
	
	
	
| # Pleroma: A lightweight social networking server
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| # Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
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| # SPDX-License-Identifier: AGPL-3.0-only
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| 
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| defmodule Pleroma.Notification do
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|   use Ecto.Schema
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| 
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|   alias Pleroma.Activity
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|   alias Pleroma.Notification
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|   alias Pleroma.Object
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|   alias Pleroma.Pagination
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|   alias Pleroma.Repo
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|   alias Pleroma.User
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|   alias Pleroma.Web.CommonAPI.Utils
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|   alias Pleroma.Web.Push
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|   alias Pleroma.Web.Streamer
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| 
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|   import Ecto.Query
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|   import Ecto.Changeset
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| 
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|   @type t :: %__MODULE__{}
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| 
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|   schema "notifications" do
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|     field(:seen, :boolean, default: false)
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|     belongs_to(:user, User, type: Pleroma.FlakeId)
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|     belongs_to(:activity, Activity, type: Pleroma.FlakeId)
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| 
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|     timestamps()
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|   end
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| 
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|   def changeset(%Notification{} = notification, attrs) do
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|     notification
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|     |> cast(attrs, [:seen])
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|   end
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| 
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|   def for_user_query(user, opts \\ []) do
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|     query =
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|       Notification
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|       |> where(user_id: ^user.id)
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|       |> where(
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|         [n, a],
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|         fragment(
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|           "? not in (SELECT ap_id FROM users WHERE info->'deactivated' @> 'true')",
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|           a.actor
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|         )
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|       )
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|       |> join(:inner, [n], activity in assoc(n, :activity))
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|       |> join(:left, [n, a], object in Object,
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|         on:
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|           fragment(
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|             "(?->>'id') = COALESCE((? -> 'object'::text) ->> 'id'::text)",
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|             object.data,
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|             a.data
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|           )
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|       )
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|       |> preload([n, a, o], activity: {a, object: o})
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| 
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|     if opts[:with_muted] do
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|       query
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|     else
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|       where(query, [n, a], a.actor not in ^user.info.muted_notifications)
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|       |> where([n, a], a.actor not in ^user.info.blocks)
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|       |> where(
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|         [n, a],
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|         fragment("substring(? from '.*://([^/]*)')", a.actor) not in ^user.info.domain_blocks
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|       )
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|       |> join(:left, [n, a], tm in Pleroma.ThreadMute,
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|         on: tm.user_id == ^user.id and tm.context == fragment("?->>'context'", a.data)
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|       )
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|       |> where([n, a, o, tm], is_nil(tm.user_id))
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|     end
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|   end
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| 
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|   def for_user(user, opts \\ %{}) do
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|     user
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|     |> for_user_query(opts)
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|     |> Pagination.fetch_paginated(opts)
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|   end
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| 
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|   @doc """
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|   Returns notifications for user received since given date.
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| 
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|   ## Examples
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| 
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|       iex> Pleroma.Notification.for_user_since(%Pleroma.User{}, ~N[2019-04-13 11:22:33])
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|       [%Pleroma.Notification{}, %Pleroma.Notification{}]
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| 
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|       iex> Pleroma.Notification.for_user_since(%Pleroma.User{}, ~N[2019-04-15 11:22:33])
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|       []
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|   """
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|   @spec for_user_since(Pleroma.User.t(), NaiveDateTime.t()) :: [t()]
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|   def for_user_since(user, date) do
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|     from(n in for_user_query(user),
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|       where: n.updated_at > ^date
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|     )
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|     |> Repo.all()
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|   end
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| 
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|   def set_read_up_to(%{id: user_id} = _user, id) do
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|     query =
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|       from(
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|         n in Notification,
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|         where: n.user_id == ^user_id,
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|         where: n.id <= ^id,
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|         update: [
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|           set: [
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|             seen: true,
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|             updated_at: ^NaiveDateTime.utc_now()
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|           ]
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|         ]
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|       )
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| 
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|     Repo.update_all(query, [])
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|   end
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| 
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|   def read_one(%User{} = user, notification_id) do
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|     with {:ok, %Notification{} = notification} <- get(user, notification_id) do
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|       notification
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|       |> changeset(%{seen: true})
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|       |> Repo.update()
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|     end
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|   end
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| 
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|   def get(%{id: user_id} = _user, id) do
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|     query =
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|       from(
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|         n in Notification,
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|         where: n.id == ^id,
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|         join: activity in assoc(n, :activity),
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|         preload: [activity: activity]
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|       )
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| 
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|     notification = Repo.one(query)
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| 
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|     case notification do
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|       %{user_id: ^user_id} ->
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|         {:ok, notification}
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| 
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|       _ ->
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|         {:error, "Cannot get notification"}
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|     end
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|   end
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| 
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|   def clear(user) do
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|     from(n in Notification, where: n.user_id == ^user.id)
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|     |> Repo.delete_all()
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|   end
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| 
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|   def destroy_multiple(%{id: user_id} = _user, ids) do
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|     from(n in Notification,
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|       where: n.id in ^ids,
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|       where: n.user_id == ^user_id
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|     )
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|     |> Repo.delete_all()
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|   end
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| 
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|   def dismiss(%{id: user_id} = _user, id) do
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|     notification = Repo.get(Notification, id)
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| 
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|     case notification do
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|       %{user_id: ^user_id} ->
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|         Repo.delete(notification)
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| 
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|       _ ->
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|         {:error, "Cannot dismiss notification"}
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|     end
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|   end
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| 
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|   def create_notifications(%Activity{data: %{"to" => _, "type" => "Create"}} = activity) do
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|     object = Object.normalize(activity)
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| 
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|     unless object && object.data["type"] == "Answer" do
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|       users = get_notified_from_activity(activity)
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|       notifications = Enum.map(users, fn user -> create_notification(activity, user) end)
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|       {:ok, notifications}
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|     else
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|       {:ok, []}
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|     end
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|   end
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| 
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|   def create_notifications(%Activity{data: %{"to" => _, "type" => type}} = activity)
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|       when type in ["Like", "Announce", "Follow"] do
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|     users = get_notified_from_activity(activity)
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|     notifications = Enum.map(users, fn user -> create_notification(activity, user) end)
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|     {:ok, notifications}
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|   end
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| 
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|   def create_notifications(_), do: {:ok, []}
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| 
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|   # TODO move to sql, too.
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|   def create_notification(%Activity{} = activity, %User{} = user) do
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|     unless skip?(activity, user) do
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|       notification = %Notification{user_id: user.id, activity: activity}
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|       {:ok, notification} = Repo.insert(notification)
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|       Streamer.stream("user", notification)
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|       Streamer.stream("user:notification", notification)
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|       Push.send(notification)
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|       notification
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|     end
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|   end
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| 
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|   def get_notified_from_activity(activity, local_only \\ true)
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| 
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|   def get_notified_from_activity(
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|         %Activity{data: %{"to" => _, "type" => type} = _data} = activity,
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|         local_only
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|       )
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|       when type in ["Create", "Like", "Announce", "Follow"] do
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|     recipients =
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|       []
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|       |> Utils.maybe_notify_to_recipients(activity)
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|       |> Utils.maybe_notify_mentioned_recipients(activity)
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|       |> Utils.maybe_notify_subscribers(activity)
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|       |> Enum.uniq()
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| 
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|     User.get_users_from_set(recipients, local_only)
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|   end
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| 
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|   def get_notified_from_activity(_, _local_only), do: []
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| 
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|   @spec skip?(Activity.t(), User.t()) :: boolean()
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|   def skip?(activity, user) do
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|     [
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|       :self,
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|       :followers,
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|       :follows,
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|       :non_followers,
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|       :non_follows,
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|       :recently_followed
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|     ]
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|     |> Enum.any?(&skip?(&1, activity, user))
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|   end
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| 
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|   @spec skip?(atom(), Activity.t(), User.t()) :: boolean()
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|   def skip?(:self, activity, user) do
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|     activity.data["actor"] == user.ap_id
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|   end
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| 
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|   def skip?(
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|         :followers,
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|         activity,
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|         %{info: %{notification_settings: %{"followers" => false}}} = user
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|       ) do
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|     actor = activity.data["actor"]
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|     follower = User.get_cached_by_ap_id(actor)
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|     User.following?(follower, user)
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|   end
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| 
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|   def skip?(
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|         :non_followers,
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|         activity,
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|         %{info: %{notification_settings: %{"non_followers" => false}}} = user
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|       ) do
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|     actor = activity.data["actor"]
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|     follower = User.get_cached_by_ap_id(actor)
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|     !User.following?(follower, user)
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|   end
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| 
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|   def skip?(:follows, activity, %{info: %{notification_settings: %{"follows" => false}}} = user) do
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|     actor = activity.data["actor"]
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|     followed = User.get_cached_by_ap_id(actor)
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|     User.following?(user, followed)
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|   end
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| 
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|   def skip?(
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|         :non_follows,
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|         activity,
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|         %{info: %{notification_settings: %{"non_follows" => false}}} = user
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|       ) do
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|     actor = activity.data["actor"]
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|     followed = User.get_cached_by_ap_id(actor)
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|     !User.following?(user, followed)
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|   end
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| 
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|   def skip?(:recently_followed, %{data: %{"type" => "Follow"}} = activity, user) do
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|     actor = activity.data["actor"]
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| 
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|     Notification.for_user(user)
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|     |> Enum.any?(fn
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|       %{activity: %{data: %{"type" => "Follow", "actor" => ^actor}}} -> true
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|       _ -> false
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|     end)
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|   end
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| 
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|   def skip?(_, _, _), do: false
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| end
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