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A pure-Elixir HTTP server built for Plug & WebSock apps

Security advisory: This version has known vulnerabilities. View advisories
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bandit lib bandit websocket frame continuation.ex
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lib/bandit/websocket/frame/continuation.ex 

defmodule Bandit.WebSocket.Frame.Continuation do

  @moduledoc false



  defstruct fin: nil, data: <<>>



  @typedoc "A WebSocket continuation frame"

  @type t :: %__MODULE__{fin: boolean(), data: binary()}



  @spec deserialize(boolean(), boolean(), iodata()) :: {:ok, t()} | {:error, term()}

  def deserialize(fin, false, payload) do

    {:ok, %__MODULE__{fin: fin, data: payload}}

  end



  def deserialize(_fin, true, _payload) do

    {:error, "Cannot have a compressed continuation frame (RFC7692§6.1)"}

  end



  defimpl Bandit.WebSocket.Frame.Serializable do

    alias Bandit.WebSocket.Frame.Continuation



    def serialize(%Continuation{} = frame), do: [{0x0, frame.fin, false, frame.data}]

  end

end