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diff --git a/lib/phoenix/transports/web_socket/raw.ex b/lib/phoenix/transports/web_socket/raw.ex
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+++ b/lib/phoenix/transports/web_socket/raw.ex
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+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Phoenix.Transports.WebSocket.Raw do
+  import Plug.Conn,
+    only: [
+      fetch_query_params: 1,
+      send_resp: 3
+    ]
+
+  alias Phoenix.Socket.Transport
+
+  def default_config do
+    [
+      timeout: 60_000,
+      transport_log: false,
+      cowboy: Phoenix.Endpoint.CowboyWebSocket
+    ]
+  end
+
+  def init(%Plug.Conn{method: "GET"} = conn, {endpoint, handler, transport}) do
+    {_, opts} = handler.__transport__(transport)
+
+    conn =
+      conn
+      |> fetch_query_params
+      |> Transport.transport_log(opts[:transport_log])
+      |> Transport.force_ssl(handler, endpoint, opts)
+      |> Transport.check_origin(handler, endpoint, opts)
+
+    case conn do
+      %{halted: false} = conn ->
+        case Transport.connect(endpoint, handler, transport, __MODULE__, nil, conn.params) do
+          {:ok, socket} ->
+            {:ok, conn, {__MODULE__, {socket, opts}}}
+
+          :error ->
+            send_resp(conn, :forbidden, "")
+            {:error, conn}
+        end
+
+      _ ->
+        {:error, conn}
+    end
+  end
+
+  def init(conn, _) do
+    send_resp(conn, :bad_request, "")
+    {:error, conn}
+  end
+
+  def ws_init({socket, config}) do
+    Process.flag(:trap_exit, true)
+    {:ok, %{socket: socket}, config[:timeout]}
+  end
+
+  def ws_handle(op, data, state) do
+    state.socket.handler
+    |> apply(:handle, [op, data, state])
+    |> case do
+      {op, data} ->
+        {:reply, {op, data}, state}
+
+      {op, data, state} ->
+        {:reply, {op, data}, state}
+
+      %{} = state ->
+        {:ok, state}
+
+      _ ->
+        {:ok, state}
+    end
+  end
+
+  def ws_info({_, _} = tuple, state) do
+    {:reply, tuple, state}
+  end
+
+  def ws_info(_tuple, state), do: {:ok, state}
+
+  def ws_close(state) do
+    ws_handle(:closed, :normal, state)
+  end
+
+  def ws_terminate(reason, state) do
+    ws_handle(:closed, reason, state)
+  end
+end