Class: MTProto::Type::RPC::Pong

Inherits:
Object
  • Object
show all
Defined in:
lib/mtproto/type/rpc/pong.rb

Constant Summary collapse

CONSTRUCTOR =
0x347773c5
CONSTRUCTOR_BAD_MSG_NOTIFICATION =
0xa7eff811

Class Method Summary collapse

Class Method Details

.parse(body) ⇒ Object



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# File 'lib/mtproto/type/rpc/pong.rb', line 10

def self.parse(body)
  constructor = body[0, 4].unpack1('L<')

  if constructor == CONSTRUCTOR_BAD_MSG_NOTIFICATION
    bad_msg = BadMsgNotification.deserialize(body)
    raise "Bad message notification: #{bad_msg.error_message} (code: #{bad_msg.error_code}, msg_id: #{bad_msg.bad_msg_id}, seqno: #{bad_msg.bad_msg_seqno})"
  end

  if constructor == MsgContainer::CONSTRUCTOR
    container = MsgContainer.deserialize(body)
    pong_message = container.messages.find do |msg|
      msg[:body][0, 4].unpack1('L<') == CONSTRUCTOR
    end

    raise 'No pong message found in container' unless pong_message

    offset = 4
    msg_id = pong_message[:body][offset, 8].unpack1('Q<')
    offset += 8
    ping_id = pong_message[:body][offset, 8].unpack1('Q<')

    return { msg_id: msg_id, ping_id: ping_id }
  end

  raise "Unexpected constructor: 0x#{constructor.to_s(16)}" unless constructor == CONSTRUCTOR

  offset = 4
  msg_id = body[offset, 8].unpack1('Q<')
  offset += 8
  ping_id = body[offset, 8].unpack1('Q<')

  { msg_id: msg_id, ping_id: ping_id }
end