+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2018 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
defmodule Pleroma.Web.Streamer do
use GenServer
require Logger
- alias Pleroma.{User, Notification}
+ alias Pleroma.{User, Notification, Activity, Object, Repo}
+ alias Pleroma.Web.ActivityPub.ActivityPub
+
+ @keepalive_interval :timer.seconds(30)
def start_link do
- spawn(fn ->
- Process.sleep(1000 * 30) # 30 seconds
- GenServer.cast(__MODULE__, %{action: :ping})
- end)
GenServer.start_link(__MODULE__, %{}, name: __MODULE__)
end
GenServer.cast(__MODULE__, %{action: :stream, topic: topic, item: item})
end
+ def init(args) do
+ spawn(fn ->
+ # 30 seconds
+ Process.sleep(@keepalive_interval)
+ GenServer.cast(__MODULE__, %{action: :ping})
+ end)
+
+ {:ok, args}
+ end
+
def handle_cast(%{action: :ping}, topics) do
Map.values(topics)
- |> List.flatten
- |> Enum.each(fn (socket) ->
+ |> List.flatten()
+ |> Enum.each(fn socket ->
Logger.debug("Sending keepalive ping")
- send socket.transport_pid, {:text, ""}
+ send(socket.transport_pid, {:text, ""})
end)
+
spawn(fn ->
- Process.sleep(1000 * 30) # 30 seconds
+ # 30 seconds
+ Process.sleep(@keepalive_interval)
GenServer.cast(__MODULE__, %{action: :ping})
end)
+
+ {:noreply, topics}
+ end
+
+ def handle_cast(%{action: :stream, topic: "direct", item: item}, topics) do
+ recipient_topics =
+ User.get_recipients_from_activity(item)
+ |> Enum.map(fn %{id: id} -> "direct:#{id}" end)
+
+ Enum.each(recipient_topics || [], fn user_topic ->
+ Logger.debug("Trying to push direct message to #{user_topic}\n\n")
+ push_to_socket(topics, user_topic, item)
+ end)
+
+ {:noreply, topics}
+ end
+
+ def handle_cast(%{action: :stream, topic: "list", item: item}, topics) do
+ # filter the recipient list if the activity is not public, see #270.
+ recipient_lists =
+ case ActivityPub.is_public?(item) do
+ true ->
+ Pleroma.List.get_lists_from_activity(item)
+
+ _ ->
+ Pleroma.List.get_lists_from_activity(item)
+ |> Enum.filter(fn list ->
+ owner = Repo.get(User, list.user_id)
+
+ ActivityPub.visible_for_user?(item, owner)
+ end)
+ end
+
+ recipient_topics =
+ recipient_lists
+ |> Enum.map(fn %{id: id} -> "list:#{id}" end)
+
+ Enum.each(recipient_topics || [], fn list_topic ->
+ Logger.debug("Trying to push message to #{list_topic}\n\n")
+ push_to_socket(topics, list_topic, item)
+ end)
+
{:noreply, topics}
end
def handle_cast(%{action: :stream, topic: "user", item: %Notification{} = item}, topics) do
topic = "user:#{item.user_id}"
- Enum.each(topics[topic] || [], fn (socket) ->
- json = %{
- event: "notification",
- payload: Pleroma.Web.MastodonAPI.MastodonAPIController.render_notification(socket.assigns["user"], item) |> Poison.encode!
- } |> Poison.encode!
- send socket.transport_pid, {:text, json}
+ Enum.each(topics[topic] || [], fn socket ->
+ json =
+ %{
+ event: "notification",
+ payload:
+ Pleroma.Web.MastodonAPI.MastodonAPIController.render_notification(
+ socket.assigns["user"],
+ item
+ )
+ |> Jason.encode!()
+ }
+ |> Jason.encode!()
+
+ send(socket.transport_pid, {:text, json})
end)
+
{:noreply, topics}
end
def handle_cast(%{action: :stream, topic: "user", item: item}, topics) do
Logger.debug("Trying to push to users")
- recipient_topics = User.get_recipients_from_activity(item)
- |> Enum.map(fn (%{id: id}) -> "user:#{id}" end)
- Enum.each(recipient_topics, fn (topic) ->
+ recipient_topics =
+ User.get_recipients_from_activity(item)
+ |> Enum.map(fn %{id: id} -> "user:#{id}" end)
+
+ Enum.each(recipient_topics, fn topic ->
push_to_socket(topics, topic, item)
end)
+
{:noreply, topics}
end
sockets_for_topic = Enum.uniq([socket | sockets_for_topic])
sockets = Map.put(sockets, topic, sockets_for_topic)
Logger.debug("Got new conn for #{topic}")
- IO.inspect(sockets)
{:noreply, sockets}
end
sockets_for_topic = List.delete(sockets_for_topic, socket)
sockets = Map.put(sockets, topic, sockets_for_topic)
Logger.debug("Removed conn for #{topic}")
- IO.inspect(sockets)
{:noreply, sockets}
end
def handle_cast(m, state) do
- IO.inspect("Unknown: #{inspect(m)}, #{inspect(state)}")
+ Logger.info("Unknown: #{inspect(m)}, #{inspect(state)}")
{:noreply, state}
end
- def push_to_socket(topics, topic, item) do
- Enum.each(topics[topic] || [], fn (socket) ->
- json = %{
- event: "update",
- payload: Pleroma.Web.MastodonAPI.StatusView.render("status.json", activity: item, for: socket.assigns[:user]) |> Poison.encode!
- } |> Poison.encode!
+ defp represent_update(%Activity{} = activity, %User{} = user) do
+ %{
+ event: "update",
+ payload:
+ Pleroma.Web.MastodonAPI.StatusView.render(
+ "status.json",
+ activity: activity,
+ for: user
+ )
+ |> Jason.encode!()
+ }
+ |> Jason.encode!()
+ end
+
+ defp represent_update(%Activity{} = activity) do
+ %{
+ event: "update",
+ payload:
+ Pleroma.Web.MastodonAPI.StatusView.render(
+ "status.json",
+ activity: activity
+ )
+ |> Jason.encode!()
+ }
+ |> Jason.encode!()
+ end
- send socket.transport_pid, {:text, json}
+ def push_to_socket(topics, topic, %Activity{data: %{"type" => "Announce"}} = item) do
+ Enum.each(topics[topic] || [], fn socket ->
+ # Get the current user so we have up-to-date blocks etc.
+ if socket.assigns[:user] do
+ user = User.get_cached_by_ap_id(socket.assigns[:user].ap_id)
+ blocks = user.info.blocks || []
+
+ parent = Object.normalize(item.data["object"])
+
+ unless is_nil(parent) or item.actor in blocks or parent.data["actor"] in blocks do
+ send(socket.transport_pid, {:text, represent_update(item, user)})
+ end
+ else
+ send(socket.transport_pid, {:text, represent_update(item)})
+ end
+ end)
+ end
+
+ def push_to_socket(topics, topic, item) do
+ Enum.each(topics[topic] || [], fn socket ->
+ # Get the current user so we have up-to-date blocks etc.
+ if socket.assigns[:user] do
+ user = User.get_cached_by_ap_id(socket.assigns[:user].ap_id)
+ blocks = user.info.blocks || []
+
+ unless item.actor in blocks do
+ send(socket.transport_pid, {:text, represent_update(item, user)})
+ end
+ else
+ send(socket.transport_pid, {:text, represent_update(item)})
+ end
end)
end
- defp internal_topic("user", socket) do
- "user:#{socket.assigns[:user].id}"
+ defp internal_topic(topic, socket) when topic in ~w[user direct] do
+ "#{topic}:#{socket.assigns[:user].id}"
end
defp internal_topic(topic, _), do: topic
projects / akkoma / blobdiff