Pleroma/lib/pleroma/subscription_notification.ex

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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.SubscriptionNotification do
use Ecto.Schema
alias Pleroma.Activity
alias Pleroma.Object
alias Pleroma.Pagination
alias Pleroma.Repo
alias Pleroma.SubscriptionNotification
alias Pleroma.User
alias Pleroma.Web.CommonAPI.Utils
alias Pleroma.Web.Push
alias Pleroma.Web.Streamer
import Ecto.Query
import Ecto.Changeset
@type t :: %__MODULE__{}
schema "subscription_notifications" do
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belongs_to(:user, User, type: FlakeId.Ecto.CompatType)
belongs_to(:activity, Activity, type: FlakeId.Ecto.CompatType)
timestamps()
end
def changeset(%SubscriptionNotification{} = notification, attrs) do
cast(notification, attrs, [])
end
def for_user_query(user, opts \\ []) do
query =
SubscriptionNotification
|> 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})
if opts[:with_muted] do
query
else
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query
|> where([n, a], a.actor not in ^user.info.muted_notifications)
|> where([n, a], a.actor not in ^user.info.blocks)
|> where(
[n, a],
fragment("substring(? from '.*://([^/]*)')", a.actor) not in ^user.info.domain_blocks
)
|> join(:left, [n, a], tm in Pleroma.ThreadMute,
on: tm.user_id == ^user.id and tm.context == fragment("?->>'context'", a.data)
)
|> where([n, a, o, tm], is_nil(tm.user_id))
end
end
def for_user(user, opts \\ %{}) do
user
|> for_user_query(opts)
|> Pagination.fetch_paginated(opts)
end
@doc """
Returns notifications for user received since given date.
## Examples
iex> Pleroma.SubscriptionNotification.for_user_since(%Pleroma.User{}, ~N[2019-04-13 11:22:33])
[%Pleroma.SubscriptionNotification{}, %Pleroma.SubscriptionNotification{}]
iex> Pleroma.SubscriptionNotification.for_user_since(%Pleroma.User{}, ~N[2019-04-15 11:22:33])
[]
"""
@spec for_user_since(Pleroma.User.t(), NaiveDateTime.t()) :: [t()]
def for_user_since(user, date) do
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user
|> for_user_query()
|> where([n], n.updated_at > ^date)
|> Repo.all()
end
def clear_up_to(%{id: user_id} = _user, id) do
from(
n in SubscriptionNotification,
where: n.user_id == ^user_id,
where: n.id <= ^id
)
|> Repo.delete_all([])
end
def get(%{id: user_id} = _user, id) do
query =
from(
n in SubscriptionNotification,
where: n.id == ^id,
join: activity in assoc(n, :activity),
preload: [activity: activity]
)
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case Repo.one(query) do
%{user_id: ^user_id} = notification ->
{:ok, notification}
_ ->
{:error, "Cannot get notification"}
end
end
def clear(user) do
from(n in SubscriptionNotification, where: n.user_id == ^user.id)
|> Repo.delete_all()
end
def destroy_multiple(%{id: user_id} = _user, ids) do
from(n in SubscriptionNotification,
where: n.id in ^ids,
where: n.user_id == ^user_id
)
|> Repo.delete_all()
end
def dismiss(%{id: user_id} = _user, id) do
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case Repo.get(SubscriptionNotification, id) do
%{user_id: ^user_id} = notification ->
Repo.delete(notification)
_ ->
{:error, "Cannot dismiss notification"}
end
end
def create_notifications(%Activity{data: %{"to" => _, "type" => "Create"}} = activity) do
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case Object.normalize(activity) do
%{data: %{"type" => "Answer"}} ->
{:ok, []}
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_ ->
users = get_notified_from_activity(activity)
notifications = Enum.map(users, fn user -> create_notification(activity, user) end)
{:ok, notifications}
end
end
def create_notifications(%Activity{data: %{"to" => _, "type" => type}} = activity)
when type in ["Like", "Announce", "Follow"] do
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notifications =
activity
|> get_notified_from_activity()
|> Enum.map(&create_notification(activity, &1))
{: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 = %SubscriptionNotification{user_id: user.id, activity: activity}
{:ok, notification} = Repo.insert(notification)
Streamer.stream("user", notification)
Streamer.stream("user:subscription_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
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[]
|> Utils.maybe_notify_subscribers(activity)
|> Enum.uniq()
|> User.get_users_from_set(local_only)
end
def get_notified_from_activity(_, _local_only), do: []
@spec skip?(Activity.t(), User.t()) :: boolean()
def skip?(activity, user) do
[
:self,
:followers,
:follows,
:non_followers,
:non_follows,
:recently_followed
]
|> Enum.any?(&skip?(&1, activity, user))
end
@spec skip?(atom(), Activity.t(), User.t()) :: boolean()
def skip?(:self, activity, user) do
activity.data["actor"] == user.ap_id
end
def skip?(
:followers,
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%{data: %{"actor" => actor}},
%{info: %{notification_settings: %{"followers" => false}}} = user
) do
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actor
|> User.get_cached_by_ap_id()
|> User.following?(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
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def skip?(:recently_followed, %{data: %{"type" => "Follow", "actor" => actor}}, user) do
user
|> SubscriptionNotification.for_user()
|> Enum.any?(&match?(%{activity: %{data: %{"type" => "Follow", "actor" => ^actor}}}, &1))
end
def skip?(_, _, _), do: false
end