Module: Fargo::Protocol::Peer

Includes:
DC, PeerDownload, PeerUpload, Utils
Defined in:
lib/fargo/protocol/peer.rb

Constant Summary

Constants included from PeerUpload

Fargo::Protocol::PeerUpload::CHUNKSIZE

Instance Attribute Summary collapse

Attributes included from PeerDownload

#download

Instance Method Summary collapse

Methods included from PeerUpload

#unbind

Methods included from PeerDownload

#begin_download!, #parse_data?, #receive_data_chunk, #unbind

Methods included from DC

#parse_data?, #receive_data, #receive_data_chunk, #send_message, #unbind

Methods included from Fargo::Parser

#parse_command_message, #parse_message

Methods included from Utils

#encode_char, #generate_key, #generate_lock

Instance Attribute Details

#client ⇒ Object

Returns the value of attribute client.



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# File 'lib/fargo/protocol/peer.rb', line 12

def client
  @client
end

Instance Method Details

#connection_type ⇒ Object 



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# File 'lib/fargo/protocol/peer.rb', line 14

def connection_type
  :peer
end

#post_init ⇒ Object 



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# File 'lib/fargo/protocol/peer.rb', line 18

def post_init
  super

  set_comm_inactivity_timeout 20

  @lock, @pk      = generate_lock
  @handshake_step = 0
end

#publish_args ⇒ Object 



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# File 'lib/fargo/protocol/peer.rb', line 100

def publish_args
  {:nick => @other_nick}
end

#receive_message(type, message) ⇒ Object 



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# File 'lib/fargo/protocol/peer.rb', line 37

def receive_message type, message
  case type
    when :mynick
      if @handshake_step == 0
        @handshake_step  = 1
        @other_nick      = message[:nick]

        client.channel << [:download_opened,
            publish_args.merge(:connection => self)]
        @download = @client.lock_next_download! @other_nick, self

        @direction = @download.nil? ? 'Upload' : 'Download'
      else
        error 'Premature disconnect when mynick received'
      end

    when :lock
      if @handshake_step == 1
        @remote_lock    = message[:lock]
        @handshake_step = 2

        send_lock unless @lock_sent

        send_message 'Supports', supports
        send_message 'Direction', "#{@direction} #{@my_num = rand(10000)}"
        send_message 'Key', generate_key(@remote_lock)
      else
        error 'Premature disconnect when lock received'
      end

    when :supports
      if @handshake_step == 2
        @client_extensions = message[:extensions]
        @handshake_step    = 3
      else
        error 'Premature disconnect when supports received'
      end

    when :direction
      if @handshake_step == 3
        @client_num     = message[:number]
        @handshake_step = 4
      else
        error 'Premature disconnect when direction received'
      end

    when :key
      if @handshake_step == 4 && generate_key(@lock) == message[:key]
        @handshake_step = 5

        begin_download! if @direction == 'Download'

      else
        error 'Premature disconnect when key received'
      end

    # This wasn't handled by us, proxy it on up to the client
    else
      super

  end
end

#send_lock ⇒ Object 



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# File 'lib/fargo/protocol/peer.rb', line 27

def send_lock
  @lock_sent = true
  send_message 'MyNick', @client.config.nick
  send_message 'Lock', "#{@lock} Pk=#{@pk}"
end

#supports ⇒ Object 



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# File 'lib/fargo/protocol/peer.rb', line 33

def supports
  'MiniSlots XmlBZList ADCGet TTHF ZLIG GetZBlock'
end