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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.Web.Push do
use GenServer
alias Pleroma.Repo
alias Pleroma.User
alias Pleroma.Activity
alias Pleroma.Object
alias Pleroma.Web.Push.Subscription
alias Pleroma.Web.Metadata.Utils
require Logger
import Ecto.Query
@types ["Create", "Follow", "Announce", "Like"]
def start_link() do
GenServer.start_link(__MODULE__, :ok, name: __MODULE__)
end
def vapid_config() do
Application.get_env(:web_push_encryption, :vapid_details, [])
end
def enabled() do
case vapid_config() do
[] -> false
list when is_list(list) -> true
_ -> false
end
end
def send(notification) do
if enabled() do
GenServer.cast(Pleroma.Web.Push, {:send, notification})
end
end
def init(:ok) do
if !enabled() do
Logger.warn("""
VAPID key pair is not found. If you wish to enabled web push, please run
mix web_push.gen.keypair
and add the resulting output to your configuration file.
""")
:ignore
else
{:ok, nil}
end
end
def handle_cast(
{:send, %{activity: %{data: %{"type" => type}}, user_id: user_id} = notification},
state
)
when type in @types do
actor = User.get_cached_by_ap_id(notification.activity.data["actor"])
type = Pleroma.Activity.mastodon_notification_type(notification.activity)
Subscription
|> where(user_id: ^user_id)
|> preload(:token)
|> Repo.all()
|> Enum.filter(fn subscription ->
get_in(subscription.data, ["alerts", type]) || false
end)
|> Enum.each(fn subscription ->
sub = %{
keys: %{
p256dh: subscription.key_p256dh,
auth: subscription.key_auth
},
endpoint: subscription.endpoint
}
body =
Jason.encode!(%{
title: format_title(notification),
access_token: subscription.token.token,
body: format_body(notification, actor),
notification_id: notification.id,
notification_type: type,
icon: User.avatar_url(actor),
preferred_locale: "en"
})
case WebPushEncryption.send_web_push(
body,
sub,
Application.get_env(:web_push_encryption, :gcm_api_key)
) do
{:ok, %{status_code: code}} when 400 <= code and code < 500 ->
Logger.debug("Removing subscription record")
Repo.delete!(subscription)
:ok
{:ok, %{status_code: code}} when 200 <= code and code < 300 ->
:ok
{:ok, %{status_code: code}} ->
Logger.error("Web Push Notification failed with code: #{code}")
:error
_ ->
Logger.error("Web Push Notification failed with unknown error")
:error
end
end)
{:noreply, state}
end
def handle_cast({:send, _}, state) do
Logger.warn("Unknown notification type")
{:noreply, state}
end
def format_body(
%{activity: %{data: %{"type" => "Create", "object" => %{"content" => content}}}},
actor
) do
"@#{actor.nickname}: #{Utils.scrub_html_and_truncate(content, 80)}"
end
def format_body(
%{activity: %{data: %{"type" => "Announce", "object" => activity_id}}},
actor
) do
%Activity{data: %{"object" => %{"id" => object_id}}} = Activity.get_by_ap_id(activity_id)
%Object{data: %{"content" => content}} = Object.get_by_ap_id(object_id)
"@#{actor.nickname} repeated: #{Utils.scrub_html_and_truncate(content, 80)}"
end
def format_body(
%{activity: %{data: %{"type" => type}}},
actor
)
when type in ["Follow", "Like"] do
case type do
"Follow" -> "@#{actor.nickname} has followed you"
"Like" -> "@#{actor.nickname} has favorited your post"
end
end
defp format_title(%{activity: %{data: %{"type" => type}}}) do
case type do
"Create" -> "New Mention"
"Follow" -> "New Follower"
"Announce" -> "New Repeat"
"Like" -> "New Favorite"
end
end
end
|
