+defmodule Pleroma.Web.Push do
+ use GenServer
+
+ alias Pleroma.{Repo, User}
+ alias Pleroma.Web.Push.Subscription
+
+ require Logger
+ import Ecto.Query
+
+ @types ["Create", "Follow", "Announce", "Like"]
+
+ @gcm_api_key nil
+
+ def start_link() do
+ GenServer.start_link(__MODULE__, :ok, name: __MODULE__)
+ end
+
+ def init(:ok) do
+ case Application.get_env(:web_push_encryption, :vapid_details) do
+ nil ->
+ Logger.error(
+ "VAPID key pair is not found. Please, add VAPID configuration to config. Run `mix web_push.gen.keypair` mix task to create a key pair"
+ )
+
+ {:error, %{}}
+
+ _ ->
+ {:ok, %{}}
+ end
+ end
+
+ def send(notification) do
+ GenServer.cast(Pleroma.Web.Push, {:send, notification})
+ 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"])
+ body = notification |> format(actor) |> Jason.encode!()
+
+ Subscription
+ |> where(user_id: ^user_id)
+ |> Repo.all()
+ |> Enum.each(fn record ->
+ subscription = %{
+ keys: %{
+ p256dh: record.key_p256dh,
+ auth: record.key_auth
+ },
+ endpoint: record.endpoint
+ }
+
+ case WebPushEncryption.send_web_push(body, subscription, @gcm_api_key) do
+ {:ok, %{status_code: code}} when 400 <= code and code < 500 ->
+ Logger.debug("Removing subscription record")
+ Repo.delete!(record)
+ :ok
+
+ {:ok, %{status_code: code}} when 200 <= code and code < 300 ->
+ :ok
+
+ {:ok, %{status_code: code}} ->
+ Logger.error("Web Push Nonification failed with code: #{code}")
+ :error
+
+ data ->
+ Logger.error("Web Push Nonification failed with unknown error")
+ IO.inspect(data)
+ :error
+ end
+ end)
+
+ {:noreply, state}
+ end
+
+ def handle_cast({:send, _}, state) do
+ Logger.warn("Unknown notification type")
+ {:noreply, state}
+ end
+
+ def format(%{activity: %{data: %{"type" => "Create"}}}, actor) do
+ %{
+ title: "New Mention",
+ body: "@#{actor.nickname} has mentiond you",
+ icon: get_avatar_url(actor)
+ }
+ end
+
+ def format(%{activity: %{data: %{"type" => "Follow"}}}, actor) do
+ %{
+ title: "New Follower",
+ body: "@#{actor.nickname} has followed you",
+ icon: get_avatar_url(actor)
+ }
+ end
+
+ def format(%{activity: %{data: %{"type" => "Announce"}}}, actor) do
+ %{
+ title: "New Announce",
+ body: "@#{actor.nickname} has announced your post",
+ icon: get_avatar_url(actor)
+ }
+ end
+
+ def format(%{activity: %{data: %{"type" => "Like"}}}, actor) do
+ %{
+ title: "New Like",
+ body: "@#{actor.nickname} has liked your post",
+ icon: get_avatar_url(actor)
+ }
+ end
+
+ def get_avatar_url(%{avatar: %{"type" => "Image", "url" => urls}}) do
+ case List.first(urls) do
+ %{"href" => url} -> url
+ _ -> get_avatar_url(nil)
+ end
+ end
+
+ def get_avatar_url(_) do
+ Pleroma.Web.Endpoint.static_url() <> "/images/avi.png"
+ end
+end