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encode and decode bittorrent peer wire protocol messages with elixir

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Wire

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Wire is an elixir package for decoding and encoding bittorrent peer wire protocol messages.

A message is represented in the library as a keyword list with :type: the type of the message (:keep_alive, :not_interested, etc) and the other fields of the message, e.g.

h = [type: :have, piece_index: 4]
Wire.encode [type: :interested] # <<0, 0, 0, 1, 2>>
Wire.encode [type: :bitfield, field: <<0, 4>>] # <<0, 0, 0, 3, 5, 0, 4>>

decode_messages decodes a binary containing 0 or more messages and returns a list of messages and the remaining bytes

Wire.decode_messages(<<0, 0, 0, 6, 5, 0, 2, 4, 3, 1>>)
# {[[type: :bitfield, field: <<0, 2, 4, 3, 1>>]], <<>>}
Wire.decode_messages(<< 0, 0, 0, 0, 0, 0, 0, 1, 2, 0, 0, 0, 0xf, 5 >>)
# {[[type: :keep_alive], [type: :interested]], <<0, 0, 0, 0xf, 5>>})

Install

Add to your mix.exs deps

{:wire, "~> 0.2.0"}

Development

Built and maintained by Alexander Ivanov, with substantial contributions by Florian Adamsky

LICENSE

MIT

Copyright

Copyright (c) 2014-2015 Alexander Ivanov. See LICENSE for further details

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