KRPCProtocol

KRPCProtocol is an elixir package for decoding and encoding mainline DHT messages.

Installation

First, add krpc_protocol to your mix.exs dependencies:

def deps do
    [{:krpc_protocol, "~> 0.0.1"}]
end

Then, update your dependencies:

$ mix deps.get

Usage

Encoding

iex> KRPCProtocol.encode(:ping, tid: "aa", node_id: "aa")
"d1:ad2:id2:aae1:q4:ping1:t2:aa1:y1:qe"

Decoding

iex> KRPCProtocol.decode("d1:ad2:id20:aaaaaaaaaaaaaaaaaaaae1:q4:ping1:t2:aa1:y1:qe")
{:ping, %{node_id: "aaaaaaaaaaaaaaaaaaaa", tid: "aa"}}

Errors

The decode function returns {:invalid, error_msg} if an error occurs during the decoding process such as an unknown message type or invalid bencoded payload.

iex> KRPCProtocol.decode("abc")
{:invalid, "Invalid becoded payload: \"abc\""}