Merge branch 'develop' into feature/polls-2-electric-boogalo
[akkoma] / lib / pleroma / notification.ex
index 039cc731214d3872243cffcbf1f22ecdb7299d38..46f2107b1d6b5405ff8b3cffd8a08ef24c5cd6fd 100644 (file)
+# 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.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, Pleroma.User
-    belongs_to :activity, Pleroma.Activity
+    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
+  def changeset(%Notification{} = notification, attrs) do
+    notification
+    |> cast(attrs, [:seen])
   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
+  def for_user_query(user) do
+    Notification
+    |> where(user_id: ^user.id)
+    |> where(
+      [n, a],
+      fragment(
+        "? not in (SELECT ap_id FROM users WHERE info->'deactivated' @> 'true')",
+        a.actor
+      )
+    )
+    |> 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
-  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],
-      preload: [:activity],
-      limit: 20
+    user
+    |> for_user_query()
+    |> Pagination.fetch_paginated(opts)
+  end
 
-    query = query
-    |> restrict_since(opts)
-    |> restrict_max(opts)
+  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
 
-    Repo.all(query)
+  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,
-      preload: [:activity]
+    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
-    query = from n in Notification,
-      where: n.user_id == ^user.id
+    from(n in Notification, where: n.user_id == ^user.id)
+    |> Repo.delete_all()
+  end
 
-    Repo.delete_all(query)
+  def destroy_multiple(%{id: user_id} = _user, ids) do
+    from(n in Notification,
+      where: n.id in ^ids,
+      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{id: id, data: %{"to" => to, "type" => type}} = activity) when type in ["Create", "Like", "Announce", "Follow"] do
-    users = User.get_notified_from_activity(activity)
+  def create_notifications(%Activity{data: %{"to" => _, "type" => type}} = activity)
+      when type in ["Create", "Like", "Announce", "Follow"] do
+    object = Object.normalize(activity)
 
-    notifications = Enum.map(users, fn (user) -> create_notification(activity, user) end)
-    {:ok, notifications}
+    unless object && object.data["type"] == "Answer" do
+      users = get_notified_from_activity(activity)
+      notifications = Enum.map(users, fn user -> create_notification(activity, user) end)
+      {:ok, notifications}
+    else
+      {:ok, []}
+    end
   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"]}) do
-      notification = %Notification{user_id: user.id, activity_id: activity.id}
+    unless skip?(activity, user) 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
-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)
+      |> Utils.maybe_notify_subscribers(activity)
+      |> Enum.uniq()
+
+    User.get_users_from_set(recipients, local_only)
+  end
+
+  def get_notified_from_activity(_, _local_only), do: []
+
+  def skip?(activity, user) do
+    [
+      :self,
+      :blocked,
+      :muted,
+      :followers,
+      :follows,
+      :non_followers,
+      :non_follows,
+      :recently_followed
+    ]
+    |> Enum.any?(&skip?(&1, activity, user))
+  end
+
+  def skip?(:self, activity, user) do
+    activity.data["actor"] == user.ap_id
+  end
+
+  def skip?(:blocked, activity, user) do
+    actor = activity.data["actor"]
+    User.blocks?(user, %{ap_id: actor})
+  end
+
+  def skip?(:muted, activity, user) do
+    actor = activity.data["actor"]
+
+    User.mutes?(user, %{ap_id: actor}) or CommonAPI.thread_muted?(user, activity)
+  end
+
+  def skip?(
+        :followers,
+        activity,
+        %{info: %{notification_settings: %{"followers" => false}}} = user
+      ) do
+    actor = activity.data["actor"]
+    follower = User.get_cached_by_ap_id(actor)
+    User.following?(follower, user)
+  end
+
+  def skip?(
+        :non_followers,
+        activity,
+        %{info: %{notification_settings: %{"non_followers" => false}}} = user
+      ) do
+    actor = activity.data["actor"]
+    follower = User.get_cached_by_ap_id(actor)
+    !User.following?(follower, user)
+  end
+
+  def skip?(:follows, activity, %{info: %{notification_settings: %{"follows" => false}}} = user) do
+    actor = activity.data["actor"]
+    followed = User.get_cached_by_ap_id(actor)
+    User.following?(user, followed)
+  end
+
+  def skip?(
+        :non_follows,
+        activity,
+        %{info: %{notification_settings: %{"non_follows" => false}}} = user
+      ) do
+    actor = activity.data["actor"]
+    followed = User.get_cached_by_ap_id(actor)
+    !User.following?(user, followed)
+  end
+
+  def skip?(:recently_followed, %{data: %{"type" => "Follow"}} = activity, user) do
+    actor = activity.data["actor"]
+
+    Notification.for_user(user)
+    |> Enum.any?(fn
+      %{activity: %{data: %{"type" => "Follow", "actor" => ^actor}}} -> true
+      _ -> false
+    end)
+  end
+
+  def skip?(_, _, _), do: false
+end