Class: TTTLS13::Message::NewSessionTicket

Inherits:
Object
  • Object
show all
Defined in:
lib/tttls1.3/message/new_session_ticket.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(ticket_lifetime:, ticket_age_add:, ticket_nonce:, ticket:, extensions: Extensions.new) ⇒ NewSessionTicket

Returns a new instance of NewSessionTicket.

Parameters:

  • ticket_lifetime (Integer)
  • ticket_age_add (String)
  • ticket_nonce (String)
  • ticket (String)
  • extensions (TTTLS13::Message::Extensions) (defaults to: Extensions.new)

Raises:



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# File 'lib/tttls1.3/message/new_session_ticket.rb', line 23

def initialize(ticket_lifetime:, ticket_age_add:,
               ticket_nonce:, ticket:, extensions: Extensions.new)
  @msg_type = HandshakeType::NEW_SESSION_TICKET
  @ticket_lifetime = ticket_lifetime
  @ticket_age_add = ticket_age_add
  raise Error::ErrorAlerts, :internal_error \
    unless ticket_age_add.length == 4

  @ticket_nonce = ticket_nonce
  @ticket = ticket
  @extensions = extensions || Extensions.new
  @timestamp = Time.now.to_i
end

Instance Attribute Details

#extensions ⇒ Object (readonly)

Returns the value of attribute extensions.



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# File 'lib/tttls1.3/message/new_session_ticket.rb', line 14

def extensions
  @extensions
end

#msg_type ⇒ Object (readonly)

Returns the value of attribute msg_type.



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# File 'lib/tttls1.3/message/new_session_ticket.rb', line 14

def msg_type
  @msg_type
end

#ticket ⇒ Object (readonly)

Returns the value of attribute ticket.



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# File 'lib/tttls1.3/message/new_session_ticket.rb', line 14

def ticket
  @ticket
end

#ticket_age_add ⇒ Object (readonly)

Returns the value of attribute ticket_age_add.



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# File 'lib/tttls1.3/message/new_session_ticket.rb', line 14

def ticket_age_add
  @ticket_age_add
end

#ticket_lifetime ⇒ Object (readonly)

Returns the value of attribute ticket_lifetime.



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# File 'lib/tttls1.3/message/new_session_ticket.rb', line 14

def ticket_lifetime
  @ticket_lifetime
end

#ticket_nonce ⇒ Object (readonly)

Returns the value of attribute ticket_nonce.



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# File 'lib/tttls1.3/message/new_session_ticket.rb', line 14

def ticket_nonce
  @ticket_nonce
end

#timestamp ⇒ Object (readonly)

Returns the value of attribute timestamp.



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# File 'lib/tttls1.3/message/new_session_ticket.rb', line 14

def timestamp
  @timestamp
end

Class Method Details

.deserialize(binary) ⇒ TTTLS13::Message::NewSessionTicket

rubocop: disable Metrics/AbcSize

Parameters:

  • binary (String)

Returns:

Raises:



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# File 'lib/tttls1.3/message/new_session_ticket.rb', line 55

def self.deserialize(binary)
  raise Error::ErrorAlerts, :internal_error if binary.nil?
  raise Error::ErrorAlerts, :decode_error if binary.length < 13
  raise Error::ErrorAlerts, :internal_error \
    unless binary[0] == HandshakeType::NEW_SESSION_TICKET

  msg_len = Convert.bin2i(binary.slice(1, 3))
  ticket_lifetime = Convert.bin2i(binary.slice(4, 4))
  ticket_age_add = binary.slice(8, 4)
  tn_len = Convert.bin2i(binary[12])
  ticket_nonce = binary.slice(13, tn_len)
  i = 13 + tn_len
  ticket_len = Convert.bin2i(binary.slice(i, 2))
  i += 2
  ticket = binary.slice(i, ticket_len)
  i += ticket_len
  exs_len = Convert.bin2i(binary.slice(i, 2))
  i += 2
  exs_bin = binary.slice(i, exs_len)
  extensions = Extensions.deserialize(exs_bin,
                                      HandshakeType::NEW_SESSION_TICKET)
  i += exs_len
  raise Error::ErrorAlerts, :decode_error unless i == msg_len + 4 &&
                                                 i == binary.length

  NewSessionTicket.new(ticket_lifetime:,
                       ticket_age_add:,
                       ticket_nonce:,
                       ticket:,
                       extensions:)
end

Instance Method Details

#appearable_extensions? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/tttls1.3/message/new_session_ticket.rb', line 89

def appearable_extensions?
  exs = @extensions.keys - APPEARABLE_NST_EXTENSIONS
  return true if exs.empty?

  !(exs - DEFINED_EXTENSIONS).empty?
end

#serialize ⇒ String

Returns:

  • (String) 


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# File 'lib/tttls1.3/message/new_session_ticket.rb', line 38

def serialize
  binary = ''
  binary += @ticket_lifetime.to_uint32
  binary += @ticket_age_add
  binary += @ticket_nonce.prefix_uint8_length
  binary += @ticket.prefix_uint16_length
  binary += @extensions.serialize

  @msg_type + binary.prefix_uint24_length
end