Class: SvcbRrPatch::SvcParams::Alpn

Inherits:
Object
  • Object
show all
Defined in:
lib/svcb_rr_patch/svc_params/alpn.rb

Direct Known Subclasses

NoDefaultAlpn

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(protocols) ⇒ Alpn

Returns a new instance of Alpn.

Parameters:

  • protocols (Array of String) 


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# File 'lib/svcb_rr_patch/svc_params/alpn.rb', line 7

def initialize(protocols)
  @protocols = protocols
end

Instance Attribute Details

#protocols ⇒ Object (readonly)

Returns the value of attribute protocols.



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# File 'lib/svcb_rr_patch/svc_params/alpn.rb', line 4

def protocols
  @protocols
end

Class Method Details

.decode(octet) ⇒ Object

:nodec:



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# File 'lib/svcb_rr_patch/svc_params/alpn.rb', line 34

def self.decode(octet)
  protocols = decode_protocols(octet)
  new(protocols)
end

.decode_protocols(octet) ⇒ Object

:nodoc:

Raises:

  • (::Resolv::DNS::DecodeError) 


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# File 'lib/svcb_rr_patch/svc_params/alpn.rb', line 17

def self.decode_protocols(octet)
  protocols = []
  i = 0
  while i < octet.length
    raise ::Resolv::DNS::DecodeError if i + 1 > octet.length

    id_len = octet.slice(i, 1).unpack1('C1')
    i += 1
    protocols << octet.slice(i, id_len)
    i += id_len
  end
  raise ::Resolv::DNS::DecodeError if i != octet.length

  protocols
end

Instance Method Details

#encode ⇒ String

Returns:

  • (String) 


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# File 'lib/svcb_rr_patch/svc_params/alpn.rb', line 12

def encode
  @protocols.map { |p| [p.length].pack('C') + p }.join
end

#to_s ⇒ Object

:nodoc:



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# File 'lib/svcb_rr_patch/svc_params/alpn.rb', line 40

def to_s
  @protocols.join(',')
end