Class: Bitcoin::Message::Base

Inherits:

Object

• Object
• Bitcoin::Message::Base

Extended by:

Util

Includes:

Util

Defined in:

lib/bitcoin/message/base.rb

Overview

Base message class

Direct Known Subclasses

Addr, Block, BlockTxn, CmpctBlock, FeeFilter, FilterAdd, FilterClear, FilterLoad, GetAddr, GetBlockTxn, GetBlocks, GetData, GetHeaders, Headers, Inv, MemPool, MerkleBlock, NotFound, Ping, Pong, Reject, SendCmpct, SendHeaders, Tx, VerAck, Version

Constant Summary

Constants included from Util

Util::DIGEST_NAME_SHA256

Instance Method Summary

• #to_payload ⇒ Object

  abstract method.

• #to_pkt ⇒ Object

  generate message header (binary format) bitcoin.org/en/developer-reference#message-headers.

Methods included from Util

byte_to_bit, calc_checksum, decode_base58_address, double_sha256, encode_base58_address, hash160, hmac_sha256, pack_boolean, pack_var_int, pack_var_string, sha256, unpack_boolean, unpack_var_int, unpack_var_int_from_io, unpack_var_string

Instance Method Details

#to_payload ⇒ Object

abstract method

# File 'lib/bitcoin/message/base.rb', line 21

def to_payload
  raise 'to_payload must be implemented in a child class.'
end

#to_pkt ⇒ Object

generate message header (binary format) bitcoin.org/en/developer-reference#message-headers

# File 'lib/bitcoin/message/base.rb', line 11

def to_pkt
  payload = to_payload
  magic = Bitcoin.chain_params.magic_head.htb
  command_name = self.class.const_get(:COMMAND, false).ljust(12, "\x00")
  payload_size = [payload.bytesize].pack('V')
  checksum = Bitcoin.double_sha256(payload)[0...4]
  magic << command_name << payload_size << checksum << payload
end