# Pleroma: A lightweight social networking server
-# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Web.Streamer do
require Logger
alias Pleroma.Activity
- alias Pleroma.Chat.MessageReference
alias Pleroma.Config
alias Pleroma.Conversation.Participation
alias Pleroma.Notification
alias Pleroma.Web.OAuth.Token
alias Pleroma.Web.Plugs.OAuthScopesPlug
alias Pleroma.Web.StreamerView
+ require Pleroma.Constants
@mix_env Mix.env()
@registry Pleroma.Web.StreamerRegistry
def registry, do: @registry
@public_streams ["public", "public:local", "public:media", "public:local:media"]
- @user_streams ["user", "user:notification", "direct", "user:pleroma_chat"]
+ @user_streams ["user", "user:notification", "direct"]
@doc "Expands and authorizes a stream, and registers the process for streaming."
@spec get_topic_and_add_socket(
) ::
{:ok, topic :: String.t()} | {:error, :bad_topic} | {:error, :unauthorized}
def get_topic_and_add_socket(stream, user, oauth_token, params \\ %{}) do
- case get_topic(stream, user, oauth_token, params) do
- {:ok, topic} -> add_socket(topic, user)
- error -> error
+ with {:ok, topic} <- get_topic(stream, user, oauth_token, params) do
+ add_socket(topic, oauth_token)
end
end
def get_topic(
stream,
%User{id: user_id} = user,
- %Token{user_id: token_user_id} = oauth_token,
+ %Token{user_id: user_id} = oauth_token,
_params
)
- when stream in @user_streams and user_id == token_user_id do
+ when stream in @user_streams do
# Note: "read" works for all user streams (not mentioning it since it's an ancestor scope)
required_scopes =
if stream == "user:notification" do
def get_topic(
"list",
%User{id: user_id} = user,
- %Token{user_id: token_user_id} = oauth_token,
+ %Token{user_id: user_id} = oauth_token,
%{"list" => id}
- )
- when user_id == token_user_id do
+ ) do
cond do
OAuthScopesPlug.filter_descendants(["read", "read:lists"], oauth_token.scopes) == [] ->
{:error, :unauthorized}
{:error, :unauthorized}
end
+ # mastodon multi-topic WS
+ def get_topic(nil, _user, _oauth_token, _params) do
+ {:ok, :multi}
+ end
+
def get_topic(_stream, _user, _oauth_token, _params) do
{:error, :bad_topic}
end
@doc "Registers the process for streaming. Use `get_topic/3` to get the full authorized topic."
- def add_socket(topic, user) do
+ def add_socket(topic, oauth_token) do
if should_env_send?() do
- auth? = if user, do: true
- Registry.register(@registry, topic, auth?)
+ oauth_token_id = if oauth_token, do: oauth_token.id, else: false
+ Registry.register(@registry, topic, oauth_token_id)
end
{:ok, topic}
def stream(topics, items) do
if should_env_send?() do
- List.wrap(topics)
- |> Enum.each(fn topic ->
- List.wrap(items)
- |> Enum.each(fn item ->
- spawn(fn -> do_stream(topic, item) end)
- end)
- end)
+ for topic <- List.wrap(topics), item <- List.wrap(items) do
+ spawn(fn -> do_stream(topic, item) end)
+ end
end
-
- :ok
end
def filtered_by_user?(user, item, streamed_type \\ :activity)
recipients = MapSet.new(item.recipients)
domain_blocks = Pleroma.Web.ActivityPub.MRF.subdomains_regex(user.domain_blocks)
- with parent <- Object.normalize(item) || item,
- true <-
- Enum.all?([blocked_ap_ids, muted_ap_ids], &(item.actor not in &1)),
+ with parent <- Object.normalize(item, fetch: false) || item,
+ true <- Enum.all?([blocked_ap_ids, muted_ap_ids], &(item.actor not in &1)),
true <- item.data["type"] != "Announce" || item.actor not in reblog_muted_ap_ids,
true <-
!(streamed_type == :activity && item.data["type"] == "Announce" &&
end)
end
+ defp do_stream("follow_relationship", item) do
+ user_topic = "user:#{item.follower.id}"
+ text = StreamerView.render("follow_relationships_update.json", item, user_topic)
+
+ Logger.debug("Trying to push follow relationship update to #{user_topic}\n\n")
+
+ Registry.dispatch(@registry, user_topic, fn list ->
+ Enum.each(list, fn {pid, _auth} ->
+ send(pid, {:text, text})
+ end)
+ end)
+ end
+
defp do_stream("participation", participation) do
user_topic = "direct:#{participation.user_id}"
Logger.debug("Trying to push a conversation participation to #{user_topic}\n\n")
when topic in ["user", "user:notification"] do
Registry.dispatch(@registry, "#{topic}:#{item.user_id}", fn list ->
Enum.each(list, fn {pid, _auth} ->
- send(pid, {:render_with_user, StreamerView, "notification.json", item})
- end)
- end)
- end
-
- defp do_stream(topic, {user, %MessageReference{} = cm_ref})
- when topic in ["user", "user:pleroma_chat"] do
- topic = "#{topic}:#{user.id}"
-
- text = StreamerView.render("chat_update.json", %{chat_message_reference: cm_ref})
-
- Registry.dispatch(@registry, topic, fn list ->
- Enum.each(list, fn {pid, _auth} ->
- send(pid, {:text, text})
+ send(pid, {:render_with_user, StreamerView, "notification.json", item, topic})
end)
end)
end
User.get_recipients_from_activity(item)
|> Enum.map(fn %{id: id} -> "user:#{id}" end)
- Enum.each(recipient_topics, fn topic ->
+ hashtag_recipients =
+ if Pleroma.Constants.as_public() in item.recipients do
+ Pleroma.Hashtag.get_recipients_for_activity(item)
+ |> Enum.map(fn id -> "user:#{id}" end)
+ else
+ []
+ end
+
+ all_recipients = Enum.uniq(recipient_topics ++ hashtag_recipients)
+
+ Enum.each(all_recipients, fn topic ->
push_to_socket(topic, item)
end)
end
end
defp push_to_socket(topic, %Participation{} = participation) do
- rendered = StreamerView.render("conversation.json", participation)
+ rendered = StreamerView.render("conversation.json", participation, topic)
Registry.dispatch(@registry, topic, fn list ->
Enum.each(list, fn {pid, _} ->
defp push_to_socket(_topic, %Activity{data: %{"type" => "Delete"}}), do: :noop
+ defp push_to_socket(topic, %Activity{data: %{"type" => "Update"}} = item) do
+ create_activity =
+ Pleroma.Activity.get_create_by_object_ap_id(item.object.data["id"])
+ |> Map.put(:object, item.object)
+
+ anon_render = StreamerView.render("status_update.json", create_activity, topic)
+
+ Registry.dispatch(@registry, topic, fn list ->
+ Enum.each(list, fn {pid, auth?} ->
+ if auth? do
+ send(
+ pid,
+ {:render_with_user, StreamerView, "status_update.json", create_activity, topic}
+ )
+ else
+ send(pid, {:text, anon_render})
+ end
+ end)
+ end)
+ end
+
defp push_to_socket(topic, item) do
- anon_render = StreamerView.render("update.json", item)
+ anon_render = StreamerView.render("update.json", item, topic)
Registry.dispatch(@registry, topic, fn list ->
Enum.each(list, fn {pid, auth?} ->
if auth? do
- send(pid, {:render_with_user, StreamerView, "update.json", item})
+ send(pid, {:render_with_user, StreamerView, "update.json", item, topic})
else
send(pid, {:text, anon_render})
end
end
end
+ def close_streams_by_oauth_token(oauth_token) do
+ if should_env_send?() do
+ Registry.select(
+ @registry,
+ [
+ {
+ {:"$1", :"$2", :"$3"},
+ [{:==, :"$3", oauth_token.id}],
+ [:"$2"]
+ }
+ ]
+ )
+ |> Enum.each(fn pid -> send(pid, :close) end)
+ end
+ end
+
# In test environement, only return true if the registry is started.
# In benchmark environment, returns false.
# In any other environment, always returns true.
projects / akkoma / blobdiff