Class: DEVp2p::Discovery::Address

Inherits:
Object
  • Object
show all
Defined in:
lib/devp2p/discovery/address.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(ip, udp_port, tcp_port = nil, from_binary = false) ⇒ Address

Returns a new instance of Address.



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# File 'lib/devp2p/discovery/address.rb', line 17

def initialize(ip, udp_port, tcp_port=nil, from_binary=false)
  tcp_port ||= udp_port

  if from_binary
    raise ArgumentError, "invalid ip" unless [4,16].include?(ip.size)

    @udp_port = dec_port udp_port
    @tcp_port = dec_port tcp_port
  else
    raise ArgumentError, "udp_port must be Integer" unless udp_port.is_a?(Integer)
    raise ArgumentError, "tcp_port must be Integer" unless tcp_port.is_a?(Integer)

    @udp_port = udp_port
    @tcp_port = tcp_port
  end

  begin
    @ip = from_binary ? IPAddr.new_ntoh(ip) : IPAddr.new(ip)
  rescue IPAddr::InvalidAddressError => e
    ips = Resolv.getaddresses(ip).sort {|addr| addr =~ /:/ ? 1 : 0 } # use ipv4 first
    raise e if ips.empty?
    @ip = ips[0]
  end
end

Instance Attribute Details

#udp_port ⇒ Object (readonly)

Returns the value of attribute udp_port.



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# File 'lib/devp2p/discovery/address.rb', line 11

def udp_port
  @udp_port
end

Class Method Details

.from_endpoint(ip, udp_port, tcp_port = "\x00\x00") ⇒ Object 



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# File 'lib/devp2p/discovery/address.rb', line 13

def self.from_endpoint(ip, udp_port, tcp_port="\x00\x00")
  new(ip, udp_port, tcp_port, true)
end

Instance Method Details

#==(other) ⇒ Object

addresses equal if they share ip and udp_port



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# File 'lib/devp2p/discovery/address.rb', line 53

def ==(other)
  [ip, udp_port] == [other.ip, other.udp_port]
end

#ip ⇒ Object 



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# File 'lib/devp2p/discovery/address.rb', line 42

def ip
  @ip.to_s
end

#to_b ⇒ Object Also known as: to_endpoint 



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# File 'lib/devp2p/discovery/address.rb', line 65

def to_b
  [@ip.hton, enc_port(udp_port), enc_port(tcp_port)]
end

#to_h ⇒ Object 



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# File 'lib/devp2p/discovery/address.rb', line 61

def to_h
  {ip: ip, udp_port: udp_port, tcp_port: tcp_port}
end

#to_s ⇒ Object 



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# File 'lib/devp2p/discovery/address.rb', line 57

def to_s
  "Address(#{ip}:#{udp_port})"
end

#update(addr) ⇒ Object 



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# File 'lib/devp2p/discovery/address.rb', line 46

def update(addr)
  @tcp_port = addr.tcp_port if @tcp_port.nil? || @tcp_port == 0
end