MastoAPI: Websocket streaming for federated timeline.
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@ -1,12 +1,18 @@
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defmodule Pleroma.Web.MastodonAPI.MastodonSocket do
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defmodule Pleroma.Web.MastodonAPI.MastodonSocket do
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use Phoenix.Socket
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use Phoenix.Socket
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transport :streaming, Phoenix.Transports.WebSocket.Raw
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transport :streaming, Phoenix.Transports.WebSocket.Raw,
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timeout: :infinity # We never receive data.
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def connect(params, socket) do
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def connect(params, socket) do
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IO.inspect(params)
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if params["stream"] == "public" do
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Pleroma.Web.Streamer.add_socket(params["stream"], socket)
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socket = socket
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{:ok, socket}
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|> assign(:topic, params["stream"])
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Pleroma.Web.Streamer.add_socket(params["stream"], socket)
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{:ok, socket}
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else
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:error
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end
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end
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end
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def id(socket), do: nil
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def id(socket), do: nil
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@ -21,7 +27,8 @@ defmodule Pleroma.Web.MastodonAPI.MastodonSocket do
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{:text, message}
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{:text, message}
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end
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end
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def handle(:closed, reason, _state) do
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def handle(:closed, reason, %{socket: socket}) do
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IO.inspect reason
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topic = socket.assigns[:topic]
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Pleroma.Web.Streamer.remove_socket(topic, socket)
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end
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end
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end
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end
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@ -4,6 +4,10 @@ defmodule Pleroma.Web.Streamer do
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import Plug.Conn
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import Plug.Conn
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def start_link do
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def start_link do
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spawn(fn ->
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Process.sleep(1000 * 30) # 30 seconds
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GenServer.cast(__MODULE__, %{action: :ping})
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end)
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GenServer.start_link(__MODULE__, %{}, name: __MODULE__)
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GenServer.start_link(__MODULE__, %{}, name: __MODULE__)
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end
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end
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@ -11,10 +15,28 @@ defmodule Pleroma.Web.Streamer do
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GenServer.cast(__MODULE__, %{action: :add, socket: socket, topic: topic})
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GenServer.cast(__MODULE__, %{action: :add, socket: socket, topic: topic})
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end
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end
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def remove_socket(topic, socket) do
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GenServer.cast(__MODULE__, %{action: :remove, socket: socket, topic: topic})
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end
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def stream(topic, item) do
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def stream(topic, item) do
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GenServer.cast(__MODULE__, %{action: :stream, topic: topic, item: item})
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GenServer.cast(__MODULE__, %{action: :stream, topic: topic, item: item})
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end
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end
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def handle_cast(%{action: :ping}, topics) do
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Map.values(topics)
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|> List.flatten
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|> Enum.each(fn (socket) ->
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Logger.debug("Sending keepalive ping")
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send socket.transport_pid, {:text, ""}
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end)
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spawn(fn ->
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Process.sleep(1000 * 30) # 30 seconds
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GenServer.cast(__MODULE__, %{action: :ping})
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end)
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{:noreply, topics}
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end
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def handle_cast(%{action: :stream, topic: topic, item: item}, topics) do
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def handle_cast(%{action: :stream, topic: topic, item: item}, topics) do
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Logger.debug("Trying to push to #{topic}")
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Logger.debug("Trying to push to #{topic}")
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Logger.debug("Pushing item to #{topic}")
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Logger.debug("Pushing item to #{topic}")
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@ -38,6 +60,15 @@ defmodule Pleroma.Web.Streamer do
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{:noreply, sockets}
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{:noreply, sockets}
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end
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end
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def handle_cast(%{action: :remove, topic: topic, socket: socket}, sockets) do
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sockets_for_topic = sockets[topic] || []
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sockets_for_topic = List.delete(sockets_for_topic, socket)
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sockets = Map.put(sockets, topic, sockets_for_topic)
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Logger.debug("Removed conn for #{topic}")
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IO.inspect(sockets)
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{:noreply, sockets}
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end
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def handle_cast(m, state) do
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def handle_cast(m, state) do
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IO.inspect("Unknown: #{inspect(m)}, #{inspect(state)}")
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IO.inspect("Unknown: #{inspect(m)}, #{inspect(state)}")
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{:noreply, state}
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{:noreply, state}
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