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akkoma/lib/pleroma/notification.ex
William Pitcock 6426301407 notifications: fix notification generation for non-create activities
in 300d94c62, an Object.normalize() call was introduced.  calling Object.normalize()
on an activity with a non-object URI (say, a user) causes Really Bad Things to happen.
so don't do that.
2019-06-22 06:44:47 +00:00

259 lines
6.5 KiB
Elixir

# 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
alias Pleroma.Web.Push
alias Pleroma.Web.Streamer
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)
|> 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
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 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{data: %{"to" => _, "type" => "Create"}} = activity) do
object = Object.normalize(activity)
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(%Activity{data: %{"to" => _, "type" => type}} = activity)
when type in ["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 skip?(activity, user) do
notification = %Notification{user_id: user.id, activity: activity}
{:ok, notification} = Repo.insert(notification)
Streamer.stream("user", notification)
Streamer.stream("user:notification", notification)
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)
|> 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